CN110013768B - Rotary disc type energy recovery device - Google Patents

Abstract

The invention belongs to the technical field of energy recovery and utilization. It discloses a turntable energy recovery device, which adopts a liquid switching turntable with simple flow channels and low hydraulic drive energy consumption; the pressurized liquid and the pressurized liquid are connected in multiple sets of parallel pressure exchange cylinders. Pressure exchange is carried out in the pressure exchange cylinder; the slide valve plunger rod switches back and forth driven by the fluid pressure in the pressure exchange cylinder; the linkage movement between multiple slide valve units is realized through the lever motion structure constructed between the slide valve plunger rod and the balance plate; Design points such as contact rolling motion between the rolling ball head structure of the slide valve plunger rod and the balance plate. The invention realizes the continuous and efficient transmission and exchange of pressure energy between the pressurizing liquid and the pressurized liquid in the pressure exchange cylinder through the synergy of the liquid switching turntable and the pressure self-responsive opening and closing slide valve unit, and has the advantages of high energy recovery efficiency and low operating load. It has the advantages of great flexibility and good engineering amplification.

Description

Turntable energy recovery device

Technical field

The invention belongs to the technical field of energy recovery and utilization. Specifically, it relates to an energy recovery device for exchanging energy between a pressurized liquid and a pressurized liquid.

Background technique

As an important technology to solve the shortage of fresh water resources, reverse osmosis seawater desalination has been widely promoted and applied in coastal areas around the world. In order to obtain a higher recovery rate of desalinated water in this technical process, the high-pressure seawater pressure at the inlet of the reverse osmosis membrane unit usually needs to be as high as 5.5-6.0MPa, which consumes huge energy in system operation. At the same time, the pressure of the high-pressure brine discharged from the reverse osmosis membrane unit is as high as 5.0MPa or more. If it is discharged directly through the pressure reducing valve, it will cause a great waste of system energy. After using the energy recovery device, the pressure energy stored in the high-pressure brine discharged from the reverse osmosis membrane unit will be reused and transferred to low-pressure fresh seawater. According to an estimated desalination water recovery rate of 40%, the reverse osmosis seawater desalination system can The operating energy consumption is reduced by more than 50%.

The hydraulic turbine device is the earliest energy recovery device product used in reverse osmosis seawater desalination systems. This device product has excellent engineering amplification performance and a single machine processing capacity of hundreds of tons per hour. Its biggest shortcoming is that the energy conversion process needs to go through In the two-step process of "pressure energy - shaft work - pressure energy", the comprehensive energy recovery efficiency of the device is relatively low, only 50-80%. In the past ten years, the market application of positive displacement energy recovery devices, especially rotor energy recovery devices, in seawater desalination projects has developed rapidly. They use the Pascal isobaric principle to convert high-pressure brine discharged from reverse osmosis membrane units into The pressure can be directly transferred to low-pressure fresh seawater, and the energy recovery efficiency of the device is as high as more than 94%. It has become a key product for domestic and foreign research, promotion and application.

However, in the disclosed rotor-type energy recovery device, hydraulic power not only needs to drive and rotate the rotor components, but also the fluid for pressure exchange in the rotor channels is also driven and rotated at the same time, which will result in high hydraulic drive energy consumption. Limited by the rotation speed of the rotor and the mixing degree of salt water in the channel, the device can only be adjusted within a narrow operating load to ensure high efficiency of the device. Engineering amplification will increase the instability of the rotor rotation and the complexity of the hydraulic drive. Currently, the single-machine processing capacity of the rotor-type energy recovery device is low.

Contents of the invention

The invention provides a turntable energy recovery device, which focuses on solving the problems of high hydraulic drive energy consumption of existing rotor-type energy recovery devices, small variation range of device operating load, and difficulty in engineering amplification.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

A turntable energy recovery device includes a cylinder (1). The cylinder (1) is provided with a pressurized liquid outlet (13), a pressurized liquid inlet (4), a pressurized liquid inlet (19), and a pressurized liquid inlet (19). Liquid outlet (8); in addition to the pressurized liquid outlet (13), the pressurized liquid inlet (4), the pressurized liquid inlet (19), and the pressurized liquid outlet (8), the The inner cavity of the cylinder (1) is sealed;

An upper end disk (15) and a lower end disk (18) are fixedly installed in the inner cavity of the barrel (1). A liquid switching turntable (16) and a liquid switching turntable (16) are installed between the upper end disk (15) and the lower end disk (18). Cylindrical sleeve (17), the cylindrical sleeve (17) is arranged on the circumferential outside of the liquid switching turntable (16), and is fixed to the upper end disk (15) and the lower end disk (18) ;

The upper end plate (15) is provided with a pressurized liquid outlet hole (15-1), and the pressurized liquid outlet hole (15-1) passes through a pressurized liquid outlet provided in the inner cavity of the barrel (1). The liquid outflow chamber is connected to the pressurizing liquid outlet (13); a pressurizing liquid inlet hole is provided at the center of the outer circumference of the cylindrical sleeve (17) and is connected to the pressurizing liquid inlet (4). (17-1), the channel edge of the pressurized liquid inlet hole (17-1) is arranged along the tangential direction of the inner cylindrical surface of the cylindrical sleeve (17); the lower end plate (18) is radially uniform There are n identical flow passages (18-1);

The liquid switching turntable (16) is in sliding fit with the upper end disk (15), the cylindrical sleeve (17) and the lower end disk (18), so that the liquid switching turntable (16) is in the upper end disk (15). 15), the cylindrical space formed by the cylindrical sleeve (17) and the lower end plate (18) realizes shaftless fully floating self-balancing rotation; the liquid switching turntable (16) is provided with an outlet hole corresponding to the pressure liquid (15-1) connected central hole (16-1); the liquid switching turntable (16) is provided with a pressurized liquid inlet annular groove (16-2) at the center of its outer circumference, and the pressurized liquid inflow The annular groove (16-2) cooperates with the inner cylindrical surface of the cylindrical sleeve (17) to form a pressurized liquid inflow annular cavity connected with the pressurized liquid inflow hole (17-1); The lower end surface of the liquid switching turntable (16) is symmetrically arranged with a semicircular-shaped pressurized liquid inflow distribution groove (16-3) and a pressurized liquid outflow collection groove (16-4). There is a micro-gap sealing area between the inflow distribution tank (16-3) and the pressurized liquid outflow collection tank (16-4); the liquid switching turntable (16) is in the pressurized liquid inflow distribution tank. A hydraulically driven flow channel (16-5) is provided between (16-3) and the pressurized liquid inflow annular groove (16-2), and the hydraulically driven flow channel (16-5) connects the The pressurized liquid inflow distribution groove (16-3) is connected with the pressurized liquid inflow annular groove (16-2), and at the same time, the hydraulically driven flow channel (16-5) is connected with the central hole (16 -1) Not connected; the liquid momentum flowing from the pressurized liquid inlet hole (17-1) to the hydraulically driven flow channel (16-5) drives the liquid switching turntable (16) to rotate; the liquid The switching turntable (16) is provided with a pressurized liquid outflow channel (16-6) between the pressurized liquid outflow collection tank (16-4) and the central hole (16-1). The liquid outflow channel (16-6) connects the pressurized liquid outflow collection tank (16-4) and the central hole (16-1). At the same time, the pressurized liquid outflow channel (16-6 ) is not connected with the pressurized liquid inlet annular groove (16-2);

The pressurized liquid inflow distribution groove (16-3) and the pressurized liquid outflow collection groove (16-4) on the lower end surface of the liquid switching turntable (16) respectively cover the lower end disk (18). (n-2)/2 continuous flow holes (18-1), the remaining two flow holes (18-1) of the lower end plate (18) are connected by the liquid switching turntable (18-1) The micro-gap sealing areas between the pressurized liquid inflow distribution groove (16-3) and the pressurized liquid outflow collection groove (16-4) of 16) are respectively covered;

The lower end of each flow passage (18-1) of the lower end plate (18) is sealingly connected to a pressure exchange cylinder (20); the lower end of the pressure exchange cylinder (20) is sealingly installed with a slide valve guide (21) ); each slide valve conduit (21) is provided with an upper flow window (21-1) and a lower flow window (21-2) at the same position; each slide valve conduit (21) is equipped with an upper flow window (21-1) and a lower flow window (21-2); The slide valve plunger rod (22) is slidably matched with it; the slide valve plunger rod (22) is a hollow structure with an open top and a closed bottom end, and the slide valve plunger rod (22) is provided with a circulation window (22 -1), the flow window (22-1) communicates with the upper flow window (21-1) of the slide valve guide (21) and the The lower flow windows (21-2) are alternately connected; the upper and lower parts of the flow window (22-1) of the slide valve plunger rod (22) are both provided with sliding seals formed with the slide valve conduit (21). wear-resistant sealing composite layer;

The upper flow window (21-1) is connected with the pressurized liquid inflow chamber provided in the inner cavity of the cylinder (1), and the pressurized liquid inflow chamber is connected with the pressurized liquid inlet (19) Communicated; the lower circulation window (21-2) is connected with the pressurized liquid outflow chamber provided in the inner cavity of the cylinder (1), and the pressurized liquid outflow chamber is connected with the pressurized liquid outlet ( 8) Connected;

The lower end of the slide valve plunger rod (22) is a rolling ball head structure. The rolling ball head structure is in contact with the balance plate (23) with a ball seat cavity at the center. n pieces of the slide valve plunger rods (22) The projection of the rolling ball head structure on the balance plate (23) is evenly distributed in concentric circles on the balance plate (23); the ball seat cavity of the balance plate (23) is in contact with the balance plate (23) supported on the balance plate (23). ) below the ball seat (24) is slidably connected.

Further, the pressurized liquid outlet (13) is provided at the top center of the cylinder (1), the pressurized liquid inlet (4) is provided at the upper part of the side wall of the cylinder (1), and the pressurized liquid outlet (13) is provided at the top center of the cylinder (1). The liquid inlet (19) is arranged in the middle of the side wall of the cylinder (1), and the pressurized liquid outlet (8) is arranged in the lower part of the side wall of the cylinder (1).

Further, the upper and lower ends of the inner cavity of the barrel (1) are respectively fixed with an upper end cover (14) and a lower end cover (11) of the barrel. The upper end cover (14) and the lower end cover of the barrel are respectively fixed. The lower end cap (11) forms a seal with the cylinder (1); the upper end cap (14) of the cylinder is provided with a central hole, and the central hole is in sealing communication with the pressurized liquid outlet (13).

Further, the upper end cover (14) of the cylinder is arranged above the upper end plate (15), and the upper end cover (14) and the upper end plate (15) of the cylinder are combined to form a cylindrical cavity, and A central connecting pipe (3) is installed in the cylindrical cavity, and the central connecting pipe (3) forms a seal with the upper end cover (14) and the upper end plate (15) of the cylinder respectively; the upper end of the cylinder The cover (14), the central connecting pipe (3) and the upper end plate (15) constitute the pressurized liquid outflow chamber;

The ball seat (24) is installed at the center of the lower end cover (11) of the cylinder.

Further, the value of n is an even number in the range of 4 to 40.

Further, the pressure liquid inflow distribution groove (16-3) is provided with an inflow driving rib (16-7), and the pressure liquid outflow collection groove (16-4) is provided with an outlet. Flow guide ribs (16-8); the number of the inflow driving ribs (16-7) and the outflow guide ribs (16-8) is the same.

Further, the central angle formed by the outermost ends of both sides of the pressurized liquid inflow distribution groove (16-3) and the axis of the liquid switching turntable (16) ranges from 90 to 180 degrees.

Further, a first annular liquid groove (15-2) is provided on the lower working end surface of the upper end plate (15), and a second annular liquid groove (18-2) is provided on the upper working end surface of the lower end plate (18). 2).

Further, the slide valve conduit (21) passes through the slide valve upper fixing plate (6) and the slide valve lower fixing plate (9) that support and fix it. The slide valve upper fixing plate (6) and the slide valve are fixed. A slide valve sleeve (7) is provided between the lower fixed plates (9) of the valve, and a circulation hole is provided on the circumference of the slide valve sleeve (7) that communicates with the pressurized liquid outlet (8); The upper fixed plate (6) of the valve is fixed to the cylinder (1) and forms a seal with the cylinder (1); the lower fixed plate (9) of the slide valve is fixed to the cylinder (1) and is sealed with the cylinder (1). The cylinder (1) forms a seal; the upper flow window (21-1) and the lower flow window (21-2) of the slide valve conduit (21) are formed by the upper fixed plate (6) of the slide valve Isolate, and the slide valve conduit (21) and the slide valve upper fixed plate (6) form a seal; the slide valve lower fixed plate (9) limits the lower end of the slide valve conduit (21) and is connected with the slide valve conduit (21). The slide valve conduit (21) forms a seal; the upper fixed plate (6) of the slide valve, the lower end plate (18) and the inner cavity of the cylinder (1) constitute the pressurized liquid inflow chamber. The slide valve upper fixed plate (6), the slide valve sleeve (7) and the slide valve lower fixed plate (9) constitute the pressurized liquid outflow chamber.

Further, the maximum working inclination angle of the balance plate (23) ranges from 5 to 50 degrees.

The beneficial effects of the present invention are:

The turntable energy recovery device of the present invention is an energy recovery device based on the principle of positive displacement. It realizes the pressure between the pressurized liquid and the pressurized liquid through the synergy of the hydraulically driven liquid switching turntable and the pressure self-responsive opening and closing slide valve unit. The continuous and efficient transmission and exchange of energy has the advantages of low hydraulic drive energy consumption, high operating load flexibility, high overall efficiency and good engineering amplification.

Compared with the existing technology, the advantages of the present invention are embodied in the following aspects:

(1) It adopts a liquid switching turntable structure with a simpler flow channel structure and smaller hydraulic drive energy consumption, which not only reduces the manufacturing cost of the device, but also improves the overall energy efficiency of the device;

(2) The pressure exchange process between the pressurizing liquid and the pressurized liquid is carried out in multiple sets of pressure exchange cylinders connected in parallel. The pressure exchange cylinders are fixed, creating a stable environment for fluid pressure exchange and ensuring the high efficiency of the pressure exchange process. and low mixing indicators;

(3) The reciprocating switching action of the slide valve plunger rod is only driven and controlled by the fluid pressure in the pressure exchange cylinder, which is conducive to the synchronization of the reciprocating switching of the slide valve plunger rod at both ends of each pressure exchange cylinder and the rotation switching of the liquid switching turntable. sex;

(4) The linkage movement of the slide valve plunger rod in the pressurized state and the slide valve plunger rod in the pressure relief state is responded to through the lever motion structure built between the rolling ball head structure and the balance plate, ensuring that different positions The synchronous corresponding characteristics and periodic cycle rules of the plunger rod response of the slide valve;

(5) Contact rolling motion is used between the rolling ball head structure of the slide valve plunger rod and the balance plate, which avoids mechanical connection of parts and simplifies the installation process of the device.

Description of the drawings

Figure 1(a) is a schematic structural diagram of the turntable energy recovery device provided by the present invention;

Figure 1(b) is the A-A cross-sectional view of Figure 1(a);

Figure 2(a) is a schematic structural diagram of the upper plate in Figure 1;

Figure 2(b) is a bottom view of Figure 2(a);

Figure 3(a) is a schematic structural diagram of the cylindrical sleeve in Figure 1;

Figure 3(b) is the B-B cross-sectional view of Figure 3(a);

Figure 4(a) is a schematic structural diagram of the lower end plate in Figure 1;

Figure 4(b) is a top view of Figure 4(a);

Figure 5(a) is a bottom view of the liquid switching turntable in Figure 1;

Figure 5(b) is a schematic structural diagram of the liquid switching turntable in Figure 1;

Figure 5(c) is a C-C cross-sectional view of Figure 5(b);

Figure 6(a) is a schematic structural diagram of the slide valve guide in Figure 1;

Figure 6(b) is a D-D cross-sectional view of Figure 6(a);

Figure 7(a) is a schematic structural diagram of the plunger rod of the slide valve in Figure 1;

Figure 7(b) is the E-E cross-sectional view of Figure 7(a);

Figure 8 is an expanded schematic diagram of the different communication positions of the 12 slide valve plunger rods relative to the slide valve guide tube.

In the above picture: 1. Cylinder; 2. Stopper on the cylinder; 3. Central connecting pipe; 4. Pressurized liquid inlet, 5. Fastening bolts; 6. Upper fixed plate of slide valve; 7. Slide valve sleeve ; 8. Pressurized liquid outlet; 9. Lower fixed plate of slide valve; 10. Balance plate sleeve; 11. Lower end cover of cylinder, 12. Lower block of cylinder; 13. Pressurized liquid outlet; 14. Upper end of cylinder Cover; 15. Upper end plate; 15-1, pressure liquid outlet hole; 15-2, first annular liquid tank; 16, liquid switching dial; 16-1, center hole; 16-2, pressure liquid inflow Ring groove; 16-3, pressurized liquid inflow distribution groove; 16-4, pressurized liquid outflow collection groove; 16-5, hydraulically driven flow channel; 16-6, pressurized liquid outflow channel; 16- 7. Inflow driving rib; 16-8. Outflow guide rib; 17. Cylindrical sleeve; 17-1. Pressurized liquid inlet hole; 18. Lower end plate; 18-1. Flow passage; 18-2. Second annular liquid tank; 19. Pressurized liquid inlet; 20. Pressure exchange cylinder; 21. Slide valve guide; 21-1. Upper circulation window; 21-2. Lower circulation window; 22. Slide valve column Plug rod; 22-1, circulation window; 23, balance plate; 24, ball seat.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given and described in detail with reference to the accompanying drawings:

As shown in Figure 1 (a) and Figure 1 (b), this embodiment discloses a rotating disk energy recovery device, which mainly includes a cylinder 1. The cylinder 1 is made of fiberglass fiber material; the top center of the cylinder 1 is provided with a Pressurized liquid outlet 13, the upper part of the side wall of the cylinder 1 is provided with a pressurized liquid inlet 4, the middle part is provided with a pressurized liquid inlet 19, and the lower part is provided with a pressurized liquid outlet 8, the pressurized liquid inlet 4, the pressurized liquid outlet 8, The pressurized liquid inlet 19 is sealed with the cylinder 1 through O-rings provided on the outer circumference. The inner cavity of the cylinder 1 is provided with an upper cylinder block 2, a central connecting pipe 3, a fastening bolt 5, an upper slide valve fixed plate 6, a slide valve sleeve 7, a slide valve lower fixed plate 9 and a balance plate sleeve 10 , cylinder lower end cover 11, cylinder lower stop 12, cylinder upper end cover 14, upper end plate 15, liquid switching turntable 16, cylindrical sleeve 17, lower end plate 18, pressure exchange cylinder 20, slide valve guide 21, slide The valve plunger rod 22, balance plate 23, ball seat 24, and the side wall of the middle section of the cylinder 1 are thickened inward to form an upper step surface below the pressurized liquid inlet 4 and a lower step surface above the pressurized liquid outlet 8 noodle.

The inner cavity of the cylinder 1 is provided with annular stop grooves at the same distance from its upper and lower ends. The upper annular stop groove is used to install the upper stopper 2 of the cylinder, and the lower annular stop groove is used to install the cylinder. Block 12 under the body. The upper stopper 2 of the barrel has a split assembly structure and is fixed with the upper end cover 14 of the barrel through bolts. A central hole is provided at the center of the upper end cover 14 of the cylinder. The central hole is connected to the joint forming the pressurized liquid outlet 13 through threads to achieve a sealed connection. The upper part of the joint forming the pressurized liquid outlet 13 is exposed at the top center of the cylinder 1 . The lower cylinder block 12 has a split assembly structure and is fixed with the upper cylinder lower end cover 11 by bolts. The center of the upper end surface of the cylinder lower end cover 11 is provided with a threaded mounting hole for installing the ball seat 24. The upper end cover 14 of the cylinder and the lower end cover 11 of the cylinder are sealed with the inner cavity of the cylinder 1 through O-rings arranged in the circumferential direction.

An upper end plate 15 is provided at the lower part of the upper end cover 14 of the cylinder. A cylindrical cavity is provided at the center of the lower end surface of the upper end cover 14 of the cylinder, and a cylindrical cavity is provided at the center of the upper end surface of the upper end plate 15 . The upper end of the central connecting pipe 3 is installed in the cylindrical cavity of the lower end surface of the upper end cover 14 of the cylinder, and is sealed by an O-ring provided on the outer circumference of the upper end of the central connecting pipe 3; the lower end of the central connecting pipe 3 is installed on the upper end In the cylindrical cavity of the upper end surface of the disk 15, sealing is achieved through an O-ring provided on the outer circumference of the lower end of the central connecting pipe 3. The cavity formed by the upper end cover 14 of the cylinder, the central connecting pipe 3 and the upper end plate 15 is called the pressurized liquid outflow chamber, and the pressurized liquid outflow chamber is connected with the pressurized liquid outlet 13 .

The lower part of the upper end plate 15 is provided with a cylindrical sleeve 17, and is connected and fixed with the cylindrical sleeve 17 through pins. The lower end of the cylindrical sleeve 17 is provided with a lower end plate 18, and is connected and fixed with the lower end plate 18 through pins. The lower end of the lower end plate 18 is supported and axially limited by the upper step surface of the inner hole of the cylinder 1, and the lower end plate 18 passes through its circumferential direction. The O-ring provided achieves sealing with the inner hole of cylinder 1.

As shown in Figure 2(a) and Figure 2(b), four pressurized liquid outlet holes 15-1 are provided at the center of the upper end plate 15. The pressurized liquid outlet holes 15-1 are connected with the pressurized liquid outlet chamber. Connected. The lower working end surface of the upper end disk 15 may also be provided with a first annular liquid tank 15-2 for storing lubricating liquid that supports the axial unbalanced force of the liquid switching turntable 16.

As shown in Figure 3 (a) and Figure 3 (b), a pressure liquid inlet hole 17-1 is provided at the center of the outer circumference of the cylindrical sleeve 17, and the channel edge of the pressure liquid inlet hole 17-1 It is arranged along the tangential direction of the inner cylindrical surface of the cylindrical sleeve 17, and the pressurized liquid inlet hole 17-1 is connected with the pressurized liquid inlet 4.

As shown in Figure 4 (a) and Figure 4 (b), the lower end plate 18 is provided with 12 flow passages 18-1 of the same size. The 12 flow passages 18-1 pass through the upper and lower sides and are located on the upper diameter of the lower end plate 18. Evenly distributed. The number of flow passages 18-1 is selected to be an even number in the range of 4 to 40. The upper working end surface of the lower end disk 18 may also be provided with a second annular liquid tank 18-2 for storing lubricating liquid that supports the axial unbalanced force of the liquid switching turntable 16.

The centers of the upper end plate 15 and the lower end plate 18 are connected together to install fastening bolts 5. The fastening bolts 5 fix the upper end plate 15, the cylindrical sleeve 17 and the lower end plate 18 together. The upper end plate 15, the cylindrical sleeve 17 and A liquid switching turntable 16 is installed in the cavity formed by the lower end disk 18. The liquid switching turntable 16, the upper end disk 15, the cylindrical sleeve 17 and the lower end disk 18 are all in a sliding fit relationship. Shaftless full-floating self-balancing rotation is achieved in the cylindrical space formed by the barrel 17 and the lower end plate 18 . The shaftless fully floating self-balancing rotation of the liquid switching turntable 16 relies on the liquid between the cylindrical sleeve 17 and the liquid switching turntable 16 to provide radial unbalanced force support, and relies on the liquid between the upper end disk 15, the lower end disk 18 and the liquid switching turntable 16 Provide axial unbalanced force support.

As shown in Figures 5(a) to 5(c), the liquid switching dial 16 is provided with a central hole 16-1 that penetrates up and down. The central hole 16-1 is in contact with the pressurized liquid outlet hole 15-1 of the upper end plate 15. The fastening bolts 5 connected between the upper end plate 15 and the lower end plate 18 are penetrated by the central hole 16-1. A pressurized liquid inflow annular groove 16-2 with a rectangular cross-section is provided at the center of the outer circumference of the liquid switching turntable 16 for storing lubricating liquid that supports the radial unbalanced force of the liquid switching turntable 16. The pressurized liquid inlet annular groove 16-2 cooperates with the inner cylindrical surface of the cylindrical sleeve 17 to form a pressurized liquid inlet annular cavity, and the pressurized liquid inlet annular cavity and the pressurized liquid inlet hole 17 of the cylindrical sleeve 17 -1 phase is connected.

The lower end surface of the liquid switching turntable 16 is provided with a pressurized liquid inflow distribution groove 16-3 and a pressurized liquid outflow collection groove 16-4. The pressurized liquid inflow distribution groove 16-3 and the pressure liquid outflow collection groove 16 are provided. -4 are all semi-circular and are symmetrically arranged on the lower end face of the liquid switching turntable 16. The lower end face of the liquid switching turntable 16 between the pressurized liquid inflow distribution groove 16-3 and the pressurized liquid outflow collection groove 16-4 is Micro gap seal area. The pressurized liquid inflow distribution groove 16-3 and the pressurized liquid outflow collection groove 16-4 have the same shape and size. The angle range of the central angle formed by the outer end and the axis of the liquid switching turntable 16 is preferably 120-180 degrees.

Preferably, the pressurized liquid inflow distribution groove 16-3 is provided with an inflow driving rib 16-7, and the pressurized liquid outflow collection groove 16-4 is provided with an outflow guide rib 16-8. . The number of inflow driving ribs 16-7 and outflow guide ribs 16-8 should be the same, generally in the range of 2-9 pieces. The inflow driving ribs 16-7 can be arranged along radial straight lines, curved along the opposite direction of the inflow direction, or in other forms according to the inflow direction, as long as the design is conducive to the driving effect. The outflow guide ribs 16-8 can be arranged along a radial straight line, a curved line bent in the opposite direction of the outflow direction, or in other forms according to the outflow direction, as long as the design is conducive to the flow guiding effect. The power generated by the inflow amount of the pressurized liquid acting on the inflow driving rib 16-7 and the outflow amount of the pressurized liquid acting on the outflow guide rib 16-8 drives the liquid switching turntable 16 to rotate, thereby realizing pressure exchange. The cylinder 20 is alternately connected with the pressurized liquid inflow distribution groove 16-3 and the pressurized liquid outflow collection groove 16-4.

The liquid switching turntable 16 is provided with a hydraulically driven flow channel 16-5 with a fan-shaped cross-section between the pressurized liquid inflow distribution groove 16-3 and the pressurized liquid inflow annular groove 16-2. The fan-shaped expansion angle is usually set is 120-180 degrees. The hydraulically driven flow channel 16-5 connects the pressurized liquid inflow distribution groove 16-3 and the pressurized liquid inflow annular groove 16-2. At the same time, the hydraulically driven flow channel 16-5 does not connect with the central hole 16-1. . Preferably, the hydraulically driven flow channel 16-5 is formed by the radially extending area of the pressurized liquid inflow annular groove 16-2 above the pressurized liquid inflow distribution groove 16-3, so that the hydraulically driven flow channel 16-5 is Cooperating with the pressurized liquid inflow hole 17-1 and the pressurized liquid inflow annular groove 16-2, the liquid switching turntable 16 can be better promoted to rotate. The liquid switching turntable 16 is provided with a pressurized liquid outflow channel 16-6 with a fan-shaped cross-section between the pressurized liquid outflow collection tank 16-4 and the central hole 16-1. The fan-shaped expansion angle is usually set to 120-180. Spend. The pressurized liquid outflow channel 16-6 connects the pressurized liquid outflow collection tank 16-4 and the central hole 16-1, and at the same time, the pressurized liquid outflow channel 16-6 is connected with the pressurized liquid inflow annular groove 16-2. Not connected.

The pressurized liquid inflow distribution groove 16-3 on the lower end surface of the liquid switching turntable 16 simultaneously covers the five continuous flow passages 18-1 of the lower end plate 18, and the pressurized liquid outflow collection groove 16-4 also covers the lower end plate 18. The five continuous flow holes 18-1 of the lower end plate 18 and the remaining two flow holes 18-1 are divided into the pressurized liquid inflow distribution groove 16-3 and the pressurized liquid outflow collection groove of the liquid switching turntable 16. The micro-gap sealing areas between 16-4 are covered respectively.

The lower ends of the 12 overflow holes 18-1 of the lower end plate 18 are step holes with enlarged diameters; the upper ends of 12 identical pressure exchange cylinders 20 are respectively installed on the steps of the 12 overflow holes 18-1 in one-to-one correspondence. hole, and sealing is achieved through the O-ring and the flow passage 18-1 provided on the outer circumference of the upper end of the pressure exchange cylinder 20. The lower end of the pressure exchange cylinder 20 is a stepped hole with an enlarged diameter; the upper ends of 12 identical slide valve conduits 21 are installed in the stepped holes of the 12 pressure exchange cylinders 20 in one-to-one correspondence, and are arranged in the slide valve conduit 21 The O-ring on the outer circumference of the upper end is sealed with the pressure exchange cylinder 20. As shown in Figure 6 (a) and Figure 6 (b), each slide valve conduit 21 is provided with an upper flow window 21-1 and a lower flow window 21-2 at the same position. The upper flow window 21-1 is located at Above the lower circulation window 21-2. Twelve identical slide valve plunger rods 22 are installed inside the twelve slide valve guide tubes 21 in one-to-one correspondence, and the slide valve plunger rods 22 and the slide valve guide tube 21 are in a sliding fit relationship. As shown in Figure 7 (a) and Figure 7 (b), the slide valve plunger rod 22 is a hollow structure with an open top and a closed bottom end. A flow window 22-1 is provided at its axial middle position. The flow window 22 -1 is connected to the hollow structure of the slide valve plunger rod 22, and the flow window 22-1 can be connected to the upper flow window 21-1 and the lower flow window on the slide valve conduit 21 through the up and down reciprocating motion of the slide valve plunger rod 22. Alternate penetration between 21-2. The upper and lower parts of the flow window 22-1 of the slide valve plunger rod 22 are provided with wear-resistant sealing composite layers, thereby forming a sliding fit and sealing relationship with the slide valve conduit 21, so that the flow window 22-1 of the slide valve plunger rod 22 is in contact with the flow window 22-1 of the slide valve plunger rod 22. When the upper flow window 21-1 on the slide valve conduit 21 is penetrated, the lower flow window 21-2 is sealed; and vice versa.

The slide valve guide 21 passes through the slide valve upper fixing plate 6 and is embedded in the slide valve lower fixing plate 9. The slide valve upper fixing plate 6 and the slide valve lower fixing plate 9 jointly support and fix the 12 slide valve guides 21. A slide valve sleeve 7 is provided between the slide valve upper fixed plate 6 and the slide valve lower fixed plate 9. The slide valve sleeve 7 supports and positions the slide valve upper fixed plate 6 and the slide valve lower fixed plate 9. The slide valve sleeve 7 7 has a circulation hole on its circumference that communicates with the pressurized liquid outlet 8 . The upper end of the upper fixed plate 6 of the slide valve is supported and axially limited by the lower step surface of the inner hole of the cylinder 1, and the upper fixed plate 6 of the slide valve is sealed with the inner hole of the cylinder 1 through the O-ring provided on its outer circumference. The upper flow window 21-1 and the lower flow window 21-2 on each slide valve conduit 21 are isolated by the slide valve upper fixed plate 6, and are arranged between the upper flow window 21-1 and the lower flow window 21-2 The O-ring on the slide valve guide 21 and the slide valve upper fixed plate 6 achieve sealing.

The space formed between the upper fixed plate 6 of the slide valve, the lower end plate 18 and the inner hole of the cylinder 1 is called the pressurized liquid inflow chamber. The pressurized liquid inflow chamber is connected with the upper flow window 21-1 of the slide valve conduit 21, and It is connected with the pressurized liquid inlet 19 on the cylinder 1. The cavity formed by the upper fixed plate 6 of the slide valve, the sleeve 7 of the slide valve and the lower fixed plate 9 of the slide valve is called the pressurized liquid outflow chamber, and the pressurized liquid outflow chamber and the lower flow window 21- of the slide valve conduit 21 2 is connected, and communicates with the pressurized liquid outlet 8 on the cylinder 1 through the flow hole of the slide valve sleeve 7 .

The lower fixed plate 9 of the slide valve is evenly distributed with 12 step holes located in the same central circle. The diameter of the upper end of each step hole is enlarged. The lower end of the slide valve guide 21 is installed in the step hole and is provided at the lower end of the slide valve guide 21. The O-ring on the outer circumference and the lower fixed plate 9 of the slide valve achieve sealing. The seal between the lower fixed plate 9 of the slide valve and the inner hole of the cylinder 1 is achieved by an O-ring provided on the outer circumference of the lower fixed plate 9 of the slide valve. The lower fixed plate 9 of the slide valve and the lower end cover 11 of the cylinder are positioned and supported by a balance plate sleeve 10.

The lower end of each slide valve plunger rod 22 is a rolling ball head structure. The ball is embedded in the end of the slide valve plunger rod 22 and forms a rolling fit with the body of the slide valve plunger rod 22 . The rolling ball head structure of the slide valve plunger rod 22 is in contact with the outer position of the upper surface of the balance plate 23. The projections of the rolling ball head structures of the twelve slide valve plunger rods 22 on the balance plate 23 are concentric circles on the balance plate 23. Evenly distributed. A ball seat cavity is provided at the center of the balance plate 23, and the ball seat cavity forms a rolling fit connection with the ball seat 24. The ball seat 24 is threadedly connected to the center of the lower end cover 11 of the cylinder. The balance plate 23 and the ball seat 24 form a lever motion mechanism. According to the movement stroke of the slide valve plunger rod 22, the maximum inclination angle of the balance plate 23 ranges from 5 to 50 degrees. The slide valve plunger rod 22 moves downward under the pressure of the pressurizing liquid. Through the lever motion mechanism composed of the balance plate 23 and the ball seat 24, the slide valve plunger is positioned symmetrically with the balance plate 23 centered on the ball seat 24. The rod 22 is pried up at the same time to synchronize the pressure increasing and releasing process.

The working process of the turntable energy recovery device of the present invention is as follows:

In the working state shown in Figure 1, the pressurized liquid flows in from the pressurized liquid inlet 4, flows through the pressurized liquid inlet hole 17-1 on the circumference of the cylindrical sleeve 17, and sequentially enters the pressurized liquid switching turntable 16. The liquid flows into the annular groove 16-2 and the hydraulically driven flow channel 16-5 of the fan-shaped structure. While the hydraulically driven liquid switching turntable 16 rotates, it flows into the pressurized liquid inflow distribution groove 16-3, and then the pressurized liquid is The pre-filled pressurized liquid in the five pressure exchange cylinders 20 corresponding to the five continuous flow channels 18-1 covered by the flow distribution groove 16-3 undergoes pressure exchange, and the pressure-exchanged pressurized liquid becomes a high-pressure liquid. ; The high-pressure liquid axially pushes the slide valve plunger rod 22 downward, so that the circulation window 22-1 of the slide valve plunger rod 22 is connected with the lower circulation window 21-2 on the slide valve conduit 21, and passes through the circulation window 22 -1 and the lower flow window 21-2 enter the pressurized liquid outflow chamber, and finally pass through the pressurized liquid outlet 8 discharge device on the cylinder 1. This is the pressurization process.

At the same time, the other five slide valve plunger rods 22 corresponding to the pressurized liquid outflow collection tank 16-4 are in the pressure relief process. The slide valve plunger rod 22 in the pressurization process and the slide valve plunger rod 22 in the pressure relief process will be contacted and connected through the balance plate 23 to form a lever motion mechanism. When the spool plunger rod 22 in the pressurizing process moves downward under the push of the pressurized liquid, the spool plunger rod 22 at the other end of the balance plate 23 will simultaneously move upward.

The slide valve plunger rod 22 at the other end of the balance plate 23 moves upward, so that the flow window 22-1 of the slide valve plunger rod 22 is connected with the upper flow window 21-1 of the slide valve conduit 21, and the pressurized liquid passes through the cylinder The pressurized liquid inlet 19 on 1 enters the pressurized liquid inflow chamber, and enters the liquid switching turntable 16 through the upper flow window 21-1 of the slide valve conduit 21 and the flow window 22-1 of the slide valve plunger rod 22. In the five pressure exchange cylinders 20 corresponding to the five continuous flow passages 18-1 covered by the pressure liquid outflow collection tank 16-4, the pressure-relieved pressure liquid in the five pressure exchange cylinders 20 flows through them in sequence. The pressurized liquid outflow collection tank 16-4, the pressurized liquid outflow channel 16-6, and the central hole 16-1 flow into the pressurized liquid outflow chamber, and finally are discharged from the device through the pressurized liquid outlet 13. This is the pressure relief process. .

With each rotation of the liquid switching dial 16, each pressure exchange cylinder 20 will sequentially undergo a pressurization stage, a sealing interval stage, a pressure relief stage and a sealing interval stage, thereby achieving pressurized liquid The pressure can be continuously recycled, and at the same time, the pressure-relieved liquid can be continuously discharged from the device.

It is worth noting that, as shown in Figure 8, according to the movement pattern of the balance plate 23, although the five pressure exchange cylinders 20 covered by the pressurized liquid inflow distribution groove 16-3 are in the pressurizing process at the same time, they are not related to the five pressure exchange cylinders 20. The flow windows 22-1 of the five spool plunger rods 22 corresponding to the pressure exchange cylinders 20 and the lower flow windows 21-2 of the spool conduit 21 have varying degrees of overlap. Similarly, although the five pressure exchange cylinders covered by the pressurized liquid outflow collection tank 16-4 are in the pressure relief process at the same time, the circulation of the five spool plunger rods 22 corresponding to the five pressure exchange cylinders 20 The window 22-1 and the upper flow window 21-1 of the slide valve conduit 21 also have varying degrees of overlap.

Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art Under the inspiration of the present invention, without departing from the spirit of the present invention and the scope protected by the claims, a person can make many specific changes, which all fall within the protection scope of the present invention.

Claims (10)

1. The rotary disc type energy recovery device comprises a cylinder (1) and is characterized in that the cylinder (1) is provided with a pressure liquid outlet (13), a pressure liquid inlet (4), a pressure liquid inlet (19) and a pressure liquid outlet (8); the inner cavity of the cylinder body (1) forms a seal except the pressure liquid outlet (13), the pressure liquid inlet (4), the pressure liquid inlet (19) and the pressure liquid outlet (8);

an upper end disc (15) and a lower end disc (18) are fixedly arranged in the inner cavity of the cylinder body (1), a liquid switching rotary disc (16) and a cylindrical sleeve (17) are arranged between the upper end disc (15) and the lower end disc (18), and the cylindrical sleeve (17) is arranged outside the liquid switching rotary disc (16) in the circumferential direction and is fixed with the upper end disc (15) and the lower end disc (18);

the upper end disc (15) is provided with a pressure liquid outlet hole (15-1), and the pressure liquid outlet hole (15-1) is communicated with the pressure liquid outlet (13) through a pressure liquid outlet cavity arranged in the inner cavity of the cylinder body (1); the central position of the outer circumference of the cylindrical sleeve (17) is provided with a pressure liquid inlet hole (17-1) communicated with the pressure liquid inlet (4), and the pore canal edge of the pressure liquid inlet hole (17-1) is arranged along the tangential direction of the inner cylindrical surface of the cylindrical sleeve (17); the lower end disc (18) is radially and uniformly provided with n identical overflow channels (18-1);

the liquid switching turntable (16) is in sliding fit with the upper end disc (15), the cylindrical sleeve (17) and the lower end disc (18), so that the liquid switching turntable (16) realizes shaftless full-floating self-balancing rotation in a cylindrical space formed by the upper end disc (15), the cylindrical sleeve (17) and the lower end disc (18); the liquid switching turntable (16) is provided with a central hole (16-1) communicated with the pressurizing liquid outlet hole (15-1); a pressurizing liquid inflow annular groove (16-2) is formed in the center of the outer circumference of the liquid switching turntable (16), and the pressurizing liquid inflow annular groove (16-2) is matched with the inner cylindrical surface of the cylindrical sleeve (17) to form a pressurizing liquid inflow annular cavity communicated with the pressurizing liquid inflow hole (17-1); the lower end face of the liquid switching turntable (16) is symmetrically provided with a semicircular pressure liquid inflow distribution groove (16-3) and a pressure liquid outflow collection groove (16-4), and a micro-gap sealing area is arranged between the pressure liquid inflow distribution groove (16-3) and the pressure liquid outflow collection groove (16-4); the liquid switching turntable (16) is provided with a hydraulic driving flow passage (16-5) between the pressure liquid inflow distribution groove (16-3) and the pressure liquid inflow annular groove (16-2), the hydraulic driving flow passage (16-5) is used for communicating the pressure liquid inflow distribution groove (16-3) with the pressure liquid inflow annular groove (16-2), and meanwhile, the hydraulic driving flow passage (16-5) is not communicated with the central hole (16-1); the liquid momentum flowing from the pressurizing liquid inlet hole (17-1) to the hydraulic driving flow channel (16-5) drives the liquid switching turntable (16) to rotate; the liquid switching turntable (16) is provided with a pressure liquid outflow channel (16-6) between the pressure liquid outflow collecting tank (16-4) and the central hole (16-1), the pressure liquid outflow channel (16-6) communicates the pressure liquid outflow collecting tank (16-4) with the central hole (16-1), and the pressure liquid outflow channel (16-6) is not communicated with the pressure liquid inflow annular groove (16-2);

the pressurizing liquid inflow distribution groove (16-3) and the pressurizing liquid outflow collection groove (16-4) on the lower end face of the liquid switching turntable (16) respectively cover (n-2)/2 continuous overflow flow channels (18-1) of the lower end disc (18), and the remaining 2 overflow flow channels (18-1) of the lower end disc (18) are respectively covered by micro gap sealing areas between the pressurizing liquid inflow distribution groove (16-3) and the pressurizing liquid outflow collection groove (16-4) of the liquid switching turntable (16);

the lower end of each overflow channel (18-1) of the lower end disc (18) is connected with a pressure exchange cylinder (20) in a sealing way; the lower end of the pressure exchange cylinder (20) is provided with a slide valve guide pipe (21) in a sealing way; an upper circulation window (21-1) and a lower circulation window (21-2) are arranged at the same position of each slide valve guide pipe (21); a slide valve plunger rod (22) which is in sliding fit with each slide valve guide pipe (21) is arranged in each slide valve guide pipe; the slide valve plunger rod (22) is of a hollow structure with an open top end and a closed bottom end, the slide valve plunger rod (22) is provided with a circulation window (22-1), and the circulation window (22-1) is alternately communicated with the upper circulation window (21-1) and the lower circulation window (21-2) of the slide valve guide pipe (21) through up-down reciprocating motion of the slide valve plunger rod (22); the upper part and the lower part of the flow window (22-1) of the slide valve plunger rod (22) are respectively provided with a wear-resistant sealing compound layer which forms sliding seal with the slide valve guide pipe (21);

the upper circulation window (21-1) is communicated with a pressurized liquid inflow cavity arranged in the inner cavity of the cylinder (1), and the pressurized liquid inflow cavity is communicated with the pressurized liquid inlet (19); the lower circulation window (21-2) is communicated with a pressurized liquid outflow cavity arranged in the inner cavity of the cylinder (1), and the pressurized liquid outflow cavity is communicated with the pressurized liquid outlet (8);

the lower end of the slide valve plunger rod (22) is provided with a rolling ball head structure, the rolling ball head structure is contacted with a balance disc (23) with a ball seat cavity arranged in the center, and projections of the rolling ball head structure of n slide valve plunger rods (22) on the balance disc (23) are uniformly distributed on the balance disc (23) in concentric circles; the ball seat cavity of the balance disc (23) is connected with the ball seat (24) supported below the balance disc (23) in a sliding fit manner.

2. A carousel energy recovery device according to claim 1, wherein the pressure liquid outlet (13) is arranged in the top center of the cylinder (1), the pressure liquid inlet (4) is arranged at the upper part of the side wall of the cylinder (1), the pressure liquid inlet (19) is arranged at the middle part of the side wall of the cylinder (1), and the pressure liquid outlet (8) is arranged at the lower part of the side wall of the cylinder (1).

3. The rotary disc type energy recovery device according to claim 1, wherein a cylinder upper end cover (14) and a cylinder lower end cover (11) are fixedly arranged at the upper end and the lower end of an inner cavity of the cylinder (1) respectively, and the cylinder upper end cover (14) and the cylinder lower end cover (11) are sealed with the cylinder (1); the cylinder upper end cover (14) is provided with a central hole which is communicated with the pressurizing liquid outlet (13) in a sealing way.

4. A rotary disc type energy recovery device according to claim 3, characterized in that the upper end cover (14) of the cylinder is arranged above the upper end disc (15), a cylindrical cavity is formed by splicing the upper end cover (14) of the cylinder and the upper end disc (15), a central connecting pipe (3) is arranged in the cylindrical cavity, and the central connecting pipe (3) forms a seal with the upper end cover (14) of the cylinder and the upper end disc (15) respectively; the upper end cover (14) of the cylinder body, the central connecting pipe (3) and the upper end disc (15) form the pressurizing liquid outflow cavity;

the ball seat (24) is arranged at the center of the lower end cover (11) of the cylinder body.

5. A rotary disc type energy recovery device according to claim 1, wherein n has an even number in the range of 4 to 40.

6. A rotary disc type energy recovery device according to claim 1, wherein an inflow driving rib plate (16-7) is arranged in the pressurizing liquid inflow distribution groove (16-3), and an outflow guide rib plate (16-8) is arranged in the pressurizing liquid outflow collection groove (16-4); the number of the inflow driving rib plates (16-7) and the number of the outflow air guide rib plates (16-8) are the same.

7. The rotary disc type energy recovery device according to claim 1, wherein the central angle formed by the outermost ends of the two sides of the pressure liquid inflow distribution groove (16-3) and the axis of the liquid switching rotary disc (16) is in the range of 90-180 degrees.

8. A carousel energy recovery device according to claim 1, wherein the lower working end surface of the upper end disc (15) is provided with a first annular fluid bath (15-2), and the upper working end surface of the lower end disc (18) is provided with a second annular fluid bath (18-2).

9. A rotary disc type energy recovery device according to claim 1, characterized in that the slide valve guide pipe (21) passes through a slide valve upper fixing plate (6) and a slide valve lower fixing plate (9) which are supported and fixed on the slide valve guide pipe, a slide valve sleeve (7) is arranged between the slide valve upper fixing plate (6) and the slide valve lower fixing plate (9), and a through hole penetrating through the pressurized liquid outlet (8) is formed in the circumference of the slide valve sleeve (7); the slide valve upper fixing plate (6) is fixed on the cylinder body (1) and forms a seal with the cylinder body (1); the slide valve lower fixing plate (9) is fixed on the cylinder body (1) and forms a seal with the cylinder body (1); the upper flow window (21-1) and the lower flow window (21-2) of the slide valve duct (21) are separated by the slide valve upper fixing plate (6), and the slide valve duct (21) forms a seal with the slide valve upper fixing plate (6); the slide valve lower fixing plate (9) limits the lower end of the slide valve guide pipe (21) and forms a seal with the slide valve guide pipe (21); the upper fixing plate (6) of the slide valve, the lower end disc (18) and the inner cavity of the cylinder body (1) form the pressurized liquid inflow cavity, and the upper fixing plate (6) of the slide valve, the slide valve sleeve (7) and the lower fixing plate (9) of the slide valve form the pressurized liquid outflow cavity.

10. A rotary disc type energy recovery device according to claim 1, characterized in that the maximum working inclination of the balancing disc (23) is in the range of 5-50 degrees.