CN120025042B - Multi-stage oil-water separator and separation method thereof - Google Patents
Multi-stage oil-water separator and separation method thereofInfo
- Publication number
- CN120025042B CN120025042B CN202510366866.2A CN202510366866A CN120025042B CN 120025042 B CN120025042 B CN 120025042B CN 202510366866 A CN202510366866 A CN 202510366866A CN 120025042 B CN120025042 B CN 120025042B
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- oil
- water
- cavity
- partition plate
- bottom shell
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
- Centrifugal Separators (AREA)
Abstract
本发明涉及油水分离器技术领域，公开了一种多级油水分离器及其分离方法，包括多个单元分离器，单元分离器包括上壳体和底壳，底壳通过螺栓固定安装在上壳体的下侧，底壳的底部设置有排水阀门，上壳体的内腔分别固定安装有第一隔板和第二隔板，第一隔板和第二隔板将上壳体的内腔分隔成上腔室、中腔室和下腔室，第二隔板上设置单向导通机构。本发明提出的多级油水分离器，通过设置由第一隔板和第二隔板围成的中间腔，以及在第二隔板上设置单向导通机构，利用内压的波动，使单向导通机构开启，将中间腔内的水排走，防止分离的水随油液一起流入执行机构，大大提高油水分离效率，达到及时隔离分离水的效果。
The present invention relates to the technical field of oil-water separators, and discloses a multi-stage oil-water separator and a separation method thereof, comprising a plurality of unit separators, wherein the unit separators comprise an upper shell and a bottom shell, wherein the bottom shell is fixedly mounted on the lower side of the upper shell by bolts, a drain valve is provided at the bottom of the bottom shell, and a first partition plate and a second partition plate are fixedly mounted on the inner cavity of the upper shell respectively, wherein the first partition plate and the second partition plate divide the inner cavity of the upper shell into an upper chamber, a middle chamber and a lower chamber, and a one-way conduction mechanism is provided on the second partition plate. The multi-stage oil-water separator proposed by the present invention, by providing an intermediate chamber surrounded by the first partition plate and the second partition plate, and providing a one-way conduction mechanism on the second partition plate, utilizes fluctuations in internal pressure to open the one-way conduction mechanism, drains the water in the intermediate chamber, and prevents the separated water from flowing into the actuator along with the oil, thereby greatly improving the oil-water separation efficiency and achieving the effect of isolating and separating the water in a timely manner.
Description
Technical Field
The invention relates to the technical field of oil-water separators, in particular to a multi-stage oil-water separator and a separation method thereof.
Background
The utility model provides an oil-water separator is a equipment of separating oil slick from the profit, in order to realize the function that a plurality of single machines used in series, improves oil-water separation's efficiency, among the prior art, the patent document of publication number CN105084457B discloses an oil-water separator and multistage oil-water separation system for separating volatile oil and water, including a jar body, support, the jar body includes the oil collector of top and the water collector of below, and the oil collector is being connected into oil pipe, and oil collector top is fixed collecting tube, is equipped with the play oil interface on the oil collecting tube, and play oil interface is being connected out oil pipe, and the lower part of water collector is being connected out the water pipe, and the outlet pipe includes eduction tube, straight tube, elbow pipe that upwards bends in proper order, the biggest section of elbow tube with play oil interface parallel and level.
The oil-water separator is too huge, is not suitable for oil-water separation of a hydraulic lubrication system of engineering machinery, is small in use, has limited capacity, and when oil with high water content is separated, an oil-water boundary line rises along with the increase of water quantity, so that separated water can flow out along with the oil to influence the oil-water separation efficiency, and on the basis of the oil-water separator, the existing oil-water separator has the defect of inconvenient timely separation of separated water and reduces the oil-water separation effect.
Disclosure of Invention
The invention aims to solve the defects that the existing oil-water separator is inconvenient to separate water in time and reduce the oil-water separation effect in the prior art, and provides a multi-stage oil-water separator and a separation method thereof.
In order to achieve the aim, the multi-stage oil-water separator comprises a plurality of unit separators, wherein each unit separator comprises an upper shell and a bottom shell, the bottom shell is fixedly arranged on the lower side of the upper shell through bolts, a drain valve is arranged at the bottom of the bottom shell, a first baffle and a second baffle are respectively and fixedly arranged in an inner cavity of the upper shell, and the first baffle and the second baffle divide the inner cavity of the upper shell into an upper cavity, a middle cavity and a lower cavity;
a flow guide pipe extending into the bottom shell is fixedly arranged on the second partition board, the flow guide pipe communicates the middle cavity with the inner cavity of the bottom shell, and a one-way conduction mechanism is arranged on the second partition board;
the two sides of the upper shell are respectively provided with an input port, an output port, an expansion port and a reflux port, the output port and the expansion port are both communicated with the upper cavity, the reflux port is communicated with the lower cavity, the input port is communicated with the inner cavity of the bottom shell through a flow guide pipe, and a plurality of unit separators can be communicated in series through the expansion port;
The first partition plate is provided with a runner hole communicated with the upper cavity and the middle cavity, the upper side of the first partition plate is provided with a coalescing filter element, the coalescing filter element is covered at the upper opening end of the runner hole, the one-way conduction mechanism is opened, water in the middle cavity is drained away, and separated water is prevented from flowing into the actuating mechanism along with oil.
Preferably, the honeycomb duct includes outer pipe sleeve and inner tube cover, the top fixed connection of outer pipe sleeve and inner tube cover forms the intermediate layer chamber that the upper end is the blind end, the lower extreme is open between outer pipe sleeve and the inner tube cover, and intermediate layer intracavity fixed mounting has spiral guide vane, and spiral guide vane separates the intermediate layer chamber into spiral passageway, and the input port passes through spiral passageway communicates with the inner chamber of drain pan, and the inner chamber communicates with the inner chamber of drain pan through the inner chamber of inner tube cover, carries out centrifugal separation to the oil-water mixture, realizes one-level oil-water separation.
Preferably, the unidirectional conduction mechanism comprises a transmission sleeve and a conical hole formed in the second partition plate, the top end of the transmission sleeve is fixedly connected with the lower surface of the first partition plate, the middle cavity is communicated with the lower cavity through the conical hole, a ball rod is slidably mounted in the transmission sleeve, a reset spring which is propped against the ball rod upwards is arranged in the transmission sleeve, the ball head end of the ball rod is clamped in the conical hole, and the opening and closing rhythm and opening and closing size of the conical hole are controlled by utilizing the up-and-down movement of the ball rod.
Preferably, the inner tube sleeve is internally provided with a central shaft capable of sliding and lifting in a rotating manner, the middle cavity is internally provided with a first floating disc, the bottom shell is internally provided with a second floating disc, the first floating disc and the second floating disc are respectively in rotary connection with the upper end and the lower end of the central shaft, the first partition plate is internally provided with a regulating disc capable of rotating and moving up and down, the top end of the central shaft is fixedly connected with the regulating disc, the surface of the regulating disc is embedded with a plurality of magnetic blocks, the first partition plate is internally provided with a conductive coil, the conductive coil is positioned on the upper side of the regulating disc, and the surface of the central shaft positioned in the inner cavity of the inner tube sleeve is fixedly provided with an impeller.
When the oil-water interface is formed in the middle cavity, the first floating disc floats at the oil-water interface, when the height of the oil-water interface changes up and down, the first floating disc moves up and down to enable the adjusting disc to move close to or far away from the conductive coil, the exciting coil is embedded in the transmission sleeve, the top end of the ball head rod is made of magnetic materials, the conductive coil is electrically connected with the exciting coil, induced current is generated by the conductive coil to be led into the exciting coil, after the exciting coil is electrified, electromagnetic acting force which downwards repels the ball head rod is generated, and the opening and closing of the conical hole are controlled through the rotation and up and down movement of the central shaft, so that the use requirements of oil-water separation under different pressures are met.
The invention also provides a separation method of the multi-stage oil-water separator, which comprises the following steps:
s1, introducing an oil-water mixed solution into an input port at a first pressure P1, enabling the oil-water mixed solution to enter a bottom shell along a spiral channel, and depositing moisture and impurities in the oil-water mixed solution in a liquid accumulation cavity of the bottom shell to realize primary oil-water separation;
s2, enabling the oil-water mixed solution to flow into the middle cavity through the inner pipe sleeve, driving the impeller to rotate, filtering by the coalescing filter element, discharging oil through the output port, depositing water in the middle cavity under the action of gravity, forming an oil-water interface in the middle cavity, realizing secondary oil-water separation, enabling the first floating disc to move upwards along with the rising of the height of the oil-water interface, enabling the adjusting disc to move close to the conductive coil, and enabling the conductive coil to generate induced current through rotation of the adjusting disc;
S3, the conductive coil generates induction current to be led into the exciting coil, after the exciting coil is electrified, electromagnetic acting force which downwards repels the ball head rod is generated, the ball head end of the ball head rod is driven to be separated from the conical hole, water in the middle cavity is discharged from the backflow port, and the height of an oil-water interface is lowered.
Preferably, in S1, the output port is closed, the oil-water mixed solution is introduced into the input port at a second pressure P2, and P2> P1, the oil-water mixed solution is subjected to primary oil-water separation treatment, the force of the return spring is overcome by P2, the ball head end of the ball head rod is driven to be separated from the conical hole, and the mixed solution in the middle cavity is discharged from the backflow port, so that the oil-water separation in a standby state is realized.
Preferably, a plurality of unit separators are taken, an expansion port of one unit separator is communicated with an input port of the other unit separator by utilizing a pipeline, so that the series connection of the plurality of unit separators is realized, and the multistage oil-water separation of an oil-water mixture is realized.
The invention has the following beneficial effects:
1. According to the multistage oil-water separator provided by the invention, the intermediate cavity surrounded by the first partition plate and the second partition plate is arranged, and the unidirectional conduction mechanism is arranged on the second partition plate, so that the unidirectional conduction mechanism is opened by utilizing fluctuation of internal pressure to drain water in the intermediate cavity, the separated water is prevented from flowing into the actuating mechanism along with oil, the oil-water separation efficiency is greatly improved, and the effect of timely isolating the separated water is achieved.
2. According to the multistage oil-water separator provided by the invention, the central shaft is arranged in the guide pipe, the regulating disc, the first floating disc, the impeller and the central shaft are assembled together, when the oil separating surface in the middle cavity changes up and down, the regulating disc in a rotating state is driven to move up and down, the conductive coil generates induced current to be led into the exciting coil, electromagnetic acting force which downwards repels the ball head rod is generated, the opening and closing rhythm and the size of the conical hole are controlled, separated water in the middle cavity is automatically and timely discharged, and when oil-water separation is carried out on an oil way of the high-pressure actuating mechanism, the early decompression of the conical hole is avoided, so that hydraulic internal energy can be fully utilized, and the use requirement of high-pressure oil-water separation is met.
3. According to the separation method of the multistage oil-water separator, the oil-water mixed liquid is centrifugally separated through the guide pipe arranged in the multistage oil-water separator, so that the first-stage oil-water separation is realized, the oil-water mixed liquid is filtered and separated through the coalescing filter element in the multistage oil-water separator, the second-stage separation is realized, and the multistage oil-water separation is realized after the plurality of single-stage separators are connected in series, so that the oil-water separation efficiency is greatly improved, and the use requirements of different oil separations are met;
when the single-stage separators are combined, the height of the second floating disc is observed, if the oil liquid interface of the bottom shell is lower, the second floating disc is always kept at a higher position, the blocking condition of the coalescing filter element can be deduced, and convenience is brought to overhaul.
Drawings
FIG. 1 is a schematic diagram of a single-stage separator according to the present invention;
FIG. 2 is a schematic diagram showing a three-dimensional structure of a single-stage separator according to the present invention;
FIG. 3 is a schematic view of the front cross-section of the upper housing according to the present invention;
Fig. 4 is a schematic diagram of a front cross-sectional structure of a bottom shell according to the present invention;
FIG. 5 is an enlarged schematic view of the structure at A in FIG. 3;
FIG. 6 is a schematic diagram of a series connection of a plurality of single-stage separators according to the present invention;
Fig. 7 is a schematic diagram of a system of a multistage oil-water separator according to the present invention.
In the figure, 1, an upper shell; 2, a bottom shell, 3, a first partition plate, 4, a second partition plate, 5, a flow guide pipe, 6, an input port, 7, an output port, 8, an expansion port, 9, a backflow port, 10, a runner hole, 11, a coalescing filter element, 12, an outer tube sleeve, 13, an inner tube sleeve, 14, a spiral guide vane, 15, a transmission sleeve, 16, a conical hole, 17, a ball head rod, 18, a central shaft, 19, a first floating disc, 20, a second floating disc, 21, a regulating disc, 22, a conductive coil, 23, an impeller, 24, an excitation coil, 25 and a return spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 7, a multistage oil-water separator includes a plurality of unit separators, the unit separators include an upper housing 1 and a bottom housing 2, the bottom housing 2 is made of transparent material, the bottom housing 2 is fixedly installed at the lower side of the upper housing 1 by bolts, a drain valve is provided at the bottom of the bottom housing 2, an inner cavity of the upper housing 1 is fixedly installed with a first partition plate 3 and a second partition plate 4, and the inner cavity of the upper housing 1 is partitioned into an upper cavity, a middle cavity and a lower cavity by the first partition plate 3 and the second partition plate 4.
Specifically, the upper chamber is located at the upper side of the first partition plate 3, the middle chamber is located at the position between the first partition plate 3 and the second partition plate 4, and the lower chamber is located at the lower side of the second partition plate 4.
The second partition board 4 is fixedly provided with a flow guide pipe 5 extending into the bottom shell 2, the flow guide pipe 5 communicates the middle cavity with the inner cavity of the bottom shell 2, and the second partition board 4 is provided with a one-way conduction mechanism.
As shown in fig. 2, the flow guiding tube 5 includes an outer tube sleeve 12 and an inner tube sleeve 13, the top ends of the outer tube sleeve 12 and the inner tube sleeve 13 are fixedly connected, an interlayer cavity with a blind end at the upper end and an open lower end is formed between the outer tube sleeve 12 and the inner tube sleeve 13, a spiral guide vane 14 is fixedly installed in the interlayer cavity, the spiral guide vane 14 separates the interlayer cavity into a spiral channel, the input port 6 is communicated with the inner cavity of the bottom shell 2 through the spiral channel, and the middle cavity is communicated with the inner cavity of the bottom shell 2 through the inner cavity of the inner tube sleeve 13.
As shown in fig. 5, the unidirectional conduction mechanism includes a transmission sleeve 15 and a tapered hole 16 formed in the second partition board 4, the top end of the transmission sleeve 15 is fixedly connected with the lower surface of the first partition board 3, the middle cavity is communicated with the lower cavity through the tapered hole 16, a ball head rod 17 is slidably mounted in the transmission sleeve 15, a return spring 25 which is abutted upwards to the ball head rod 17 is arranged in the transmission sleeve 15, and the ball head end of the ball head rod 17 is clamped in the tapered hole 16.
The two sides of the upper shell 1 are respectively provided with an input port 6, an output port 7, an expansion port 8 and a backflow port 9, the output port 7 and the expansion port 8 are communicated with the upper cavity, the backflow port 9 is communicated with the lower cavity, the input port 6 is communicated with the inner cavity of the bottom shell 2 through the flow guide pipe 5, and a plurality of unit separators can be communicated in series through the expansion port 8.
The first partition plate 3 is provided with a runner hole 10 which is communicated with the upper cavity and the middle cavity, the upper side of the first partition plate 3 is provided with a coalescing filter element 11, and the coalescing filter element 11 covers the upper opening end of the runner hole 10.
In the use process, the oil-water mixture enters the bottom shell 2 along the spiral channel, then flows upwards along the inner tube sleeve 13 to enter the middle chamber, is filtered by the coalescing filter element 11, is separated from oil and water, is guided into the actuating mechanism by the output port 7, and separated water drops are deposited in the middle chamber, in the process, as the actuating mechanism moves and stops, the internal pressure in the upper shell 1 is changed in a negligence manner, the internal pressure of the middle chamber is increased, the ball head rod 17 is pushed to move downwards, and the oil and water in the middle chamber flow into the oil storage tank from the backflow port 9 as shown in fig. 5, and the reference is made to fig. 7.
It should be noted that, during the process that the oil-water mixture enters the bottom shell 2 along the spiral channel, the oil-water mixture flows along the spiral descending motion track, the masses of water, oil and impurities in the oil-water mixture are different, the centrifugal force is also different, the masses of water and impurities are larger, the water and impurities are settled along the inner wall of the bottom shell 2, an oil-liquid interface is formed in the bottom shell 2, as shown by an oil-liquid interface I in fig. 4, the water and impurities can be discharged through a drainage valve, the mass of oil is smaller, the oil and a small part of small water droplets float up along the inner cavity of the inner pipe sleeve 13, the oil-water mixture is centrifugally separated, and the first-stage oil-water separation is realized, wherein the coalescing filter element 11 in the inner part has the functions of solid-liquid separation, demulsification, coalescence, separation and adsorption, and the small water droplets are continuously contacted with the fibers and are gradually aggregated into larger water droplets in the coalescing layer of the coalescing filter element 11, and the large water droplets are continuously increased in volume due to the fact that the large water droplets are more than hydrocarbon and separated from the liquid hydrocarbon under the action of gravity, and sink into the middle cavity. Meanwhile, the oil product continues to flow, and the oil product passes through the separation filter element layer of the coalescing filter element 11, so that the separation filter element layer has good oleophilic hydrophobicity, water is further separated, the oil-water mixed solution is filtered and separated, and the second-stage separation is realized, and the part is used as common knowledge and is not described in detail herein.
According to the multistage oil-water separator provided by the invention, the intermediate cavity surrounded by the first partition plate 3 and the second partition plate 4 is arranged, and the unidirectional conduction mechanism is arranged on the second partition plate 4, so that the unidirectional conduction mechanism is opened by utilizing fluctuation of internal pressure to drain water in the intermediate cavity, the separated water is prevented from continuously increasing and flowing into the actuating mechanism along with oil, the oil-water separation efficiency is greatly improved, and the effect of timely separating the separated water is achieved.
In this embodiment, a central shaft 18 capable of sliding and lifting is rotatably installed in the inner sleeve 13, a first floating disc 19 is arranged in the middle cavity, a second floating disc 20 is arranged in the bottom shell 2, and the first floating disc 19 and the second floating disc 20 are respectively and rotatably connected with the upper end and the lower end of the central shaft 18.
The first partition plate 3 is internally provided with a rotatable and vertically movable adjusting disc 21, the top end of the central shaft 18 is fixedly connected with the adjusting disc 21, the surface of the adjusting disc 21 is embedded with a plurality of magnetic blocks, the first partition plate 3 is internally embedded with a conductive coil 22, the conductive coil 22 is positioned on the upper side of the adjusting disc 21, and an impeller 23 is fixedly arranged on the surface of the central shaft 18 positioned in the inner cavity of the inner pipe sleeve 13.
When the oil-water interface is formed in the middle chamber, as shown in the second oil-water interface in fig. 3, the first floating disc 19 floats at the second oil-water interface, and when the height of the second oil-water interface changes up and down, the first floating disc 19 moves up and down, so that the adjusting disc 21 moves close to or away from the conductive coil 22.
The second floating plate 20 serves as an auxiliary function for increasing buoyancy.
The drive sleeve 15 is embedded with an exciting coil 24, the top end of the ball head rod 17 is made of magnetic material, and the conducting coil 22 is electrically connected with the exciting coil 24.
The water in the middle cavity is increased, the height of the oil-water interface II is increased, the adjusting disc 21 is close to the conductive coil 22, oil flows upwards from the inner tube sleeve 13 to drive the impeller 23 to rotate, at the moment, the adjusting disc 21 also rotates along with the oil, the conductive coil 22 cuts the magnetic field of the magnetic block to generate induction current in the conductive coil 22, the induction current is led into the exciting coil 24 after being amplified, the conductive coil 22 generates induction current to be led into the exciting coil 24, after the exciting coil 24 is electrified, electromagnetic acting force which downwards repels the ball rod 17 is generated, the ball rod 17 is pressed down, at the moment, the conical hole 16 is in an open state, water and oil in the middle cavity are discharged from the backflow port 9 into the oil storage tank, and when the adjusting disc 21 is far away from the conductive coil 22, the induction current generated by the conductive coil 22 is small, so that the magnetic repulsive force of the exciting coil 24 cannot press the ball rod 17.
The invention also provides a separation method of the multi-stage oil-water separator, which comprises the following steps:
S1, introducing an oil-water mixed solution into an input port 6 at a first pressure P1, enabling the oil-water mixed solution to enter a bottom shell 2 along a spiral channel, and depositing moisture and impurities in the oil-water mixed solution in a liquid accumulation cavity of the bottom shell 2 to realize primary oil-water separation;
S2, enabling the oil-water mixed solution to flow into the middle chamber through the inner pipe sleeve 13, driving the impeller 23 to rotate, filtering by the coalescing filter element 11, discharging oil from the output port 7, depositing water in the middle chamber under the action of gravity, forming an oil-water interface II in the middle chamber, realizing secondary oil-water separation, enabling the first floating disc 19 to move upwards along with the rising of the height of the oil-water interface II, enabling the adjusting disc 21 to move close to the conductive coil 22, enabling the adjusting disc 21 to rotate, and enabling the conductive coil 22 to generate induction current;
s3, the conductive coil 22 generates induction current to be led into the exciting coil 24, after the exciting coil 24 is electrified, electromagnetic acting force which downwards repels the ball head rod 17 is generated, the ball head end of the ball head rod 17 is driven to be separated from the conical hole 16, water in the middle cavity is discharged from the backflow port 9, the height of the oil-water interface II is lowered, the situation that the oil-water interface II is continuously raised and separated water is discharged from the output port 7 is avoided.
In this embodiment, P1 in S1 is smaller than the pressure of the return spring 25 on the ball stud 17, so that P1 cannot independently open the tapered hole 16.
In S1, the output port 7 is closed, the oil-water mixture is led into the input port 6 at the second pressure P2, and P2> P1, the oil-water mixture is subjected to primary oil-water separation treatment, P2 overcomes the acting force of the return spring 25, the ball head end of the ball head rod 17 is driven to be separated from the conical hole 16, the mixture in the middle cavity is discharged from the return port 9, and closing the output port 7 means stopping the action of an executing mechanism connected with the output port 7, so as to realize oil-water separation in a standby state.
As shown in fig. 6, a plurality of unit separators are taken, and an expansion port 8 of one unit separator is communicated with an input port 6 of the other unit separator by a pipeline, so that the series connection of the plurality of unit separators is realized, and the multi-stage oil-water separation of an oil-water mixture is realized, and the detail is shown in fig. 7.
The oil-water mixed liquid is centrifugally separated through the guide pipe 5 arranged in the oil-water mixed liquid, so that the first-stage oil-water separation is realized, the oil-water mixed liquid is filtered and separated through the coalescing filter element 11 in the oil-water mixed liquid, the second-stage separation is realized, and after a plurality of single-stage separators are connected in series, the multi-stage oil-water separation is realized, the oil-water separation efficiency is greatly improved, and the use requirements of different oil quality separations are met;
When the single-stage separators are used independently, or when a plurality of single-stage separators are combined, the height of the second floating disc 20 is observed, if the oil liquid interface of the bottom shell 2 is low, or water and impurities in the bottom shell 2 are discharged, but the second floating disc 20 is always kept at a higher position, theoretically, the water in the middle cavity is increased, under the electromagnetic force of the exciting coil 24 downwards repelling the ball head rod 17, the conical hole 16 is opened for slowly draining water, the oil liquid interface is slowly lowered, the height of the second floating disc 20 is also lowered, but the second floating disc 20 is always kept at a higher position, mainly, the resistance of the coalescing filter element 11 is increased, the inner pressure is increased, the conical hole 16 is completely opened, the flow in the inner tube sleeve 13 is increased, the impeller 23 is driven to rotate, and the thrust of the fluid acting on the surface of the impeller 23 is increased, so that the central shaft 18 cannot fall, thereby the blocking condition of the coalescing filter element 11 can be deduced, convenience is provided for overhauling, and particularly, the combined use condition of the single-stage separators is different in maintenance period of each unit separator.
According to the multistage oil-water separator provided by the invention, the central shaft 18 is arranged in the guide pipe 5, the regulating disc 21, the first floating disc 19 and the impeller 23 are assembled with the central shaft 18, when the oil separating surface in the middle cavity is changed up and down, the regulating disc 21 in a rotating state is driven to move up and down, the conductive coil 22 generates induced current to be led into the exciting coil 24, electromagnetic acting force which downwards repels the ball head rod 17 is generated, the opening and closing rhythm and the size of the conical hole 16 are controlled, so that separated water in the middle cavity is automatically and timely discharged, and when oil-water separation is carried out on an oil way of the high-pressure actuating mechanism, the premature decompression of the conical hole 16 is avoided, so that the hydraulic energy can be fully utilized, and the use requirement of high-pressure oil-water separation is met.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The multistage oil-water separator comprises a plurality of unit separators and is characterized in that the unit separators comprise an upper shell (1) and a bottom shell (2), the bottom shell (2) is fixedly arranged on the lower side of the upper shell (1) through bolts, a drain valve is arranged at the bottom of the bottom shell (2), a first partition plate (3) and a second partition plate (4) are respectively and fixedly arranged in an inner cavity of the upper shell (1), and the inner cavity of the upper shell (1) is divided into an upper cavity, a middle cavity and a lower cavity by the first partition plate (3) and the second partition plate (4);
A draft tube (5) extending into the bottom shell (2) is fixedly arranged on the second partition board (4), the draft tube (5) communicates the middle cavity with the inner cavity of the bottom shell (2), and a one-way conduction mechanism is arranged on the second partition board (4);
The one-way conduction mechanism comprises a transmission sleeve (15) and a conical hole (16) formed in the second partition board (4), the top end of the transmission sleeve (15) is fixedly connected with the lower surface of the first partition board (3), the middle cavity is communicated with the lower cavity through the conical hole (16), a ball head rod (17) is slidably mounted in the transmission sleeve (15), a reset spring (25) for upwards propping against the ball head rod (17) is arranged in the transmission sleeve (15), and the ball head end of the ball head rod (17) is clamped in the conical hole (16);
The two sides of the upper shell (1) are respectively provided with an input port (6), an output port (7), an expansion port (8) and a backflow port (9), the output port (7) and the expansion port (8) are communicated with the upper cavity, the backflow port (9) is communicated with the lower cavity, the input port (6) is communicated with the inner cavity of the bottom shell (2) through a flow guide pipe (5), and a plurality of unit separators can be communicated in series through the expansion port (8);
A runner hole (10) for communicating the upper cavity and the middle cavity is formed in the first partition plate (3), a coalescing filter element (11) is arranged on the upper side of the first partition plate (3), and the coalescing filter element (11) covers the upper opening end of the runner hole (10);
the honeycomb duct (5) comprises an outer tube sleeve (12) and an inner tube sleeve (13), the top ends of the outer tube sleeve (12) and the inner tube sleeve (13) are fixedly connected, an interlayer cavity with a blind end at the upper end and an open lower end is formed between the outer tube sleeve (12) and the inner tube sleeve (13), a spiral guide blade (14) is fixedly arranged in the interlayer cavity, the spiral guide blade (14) divides the interlayer cavity into spiral channels, an input port (6) is communicated with the inner cavity of the bottom shell (2) through the spiral channels, and a middle cavity is communicated with the inner cavity of the bottom shell (2) through the inner cavity of the inner tube sleeve (13);
the inner tube sleeve (13) is rotatably provided with a central shaft (18) capable of sliding and lifting, a first floating disc (19) is arranged in the middle cavity, a second floating disc (20) is arranged in the bottom shell (2), and the first floating disc (19) and the second floating disc (20) are respectively connected with the upper end and the lower end of the central shaft (18) in a rotating mode;
An adjusting disc (21) which can rotate and move up and down is arranged in the first partition plate (3), the top end of the central shaft (18) is fixedly connected with the adjusting disc (21), a plurality of magnetic blocks are embedded on the surface of the adjusting disc (21), a conductive coil (22) is embedded in the first partition plate (3), the conductive coil (22) is positioned on the upper side of the adjusting disc (21), and an impeller (23) is fixedly arranged on the surface of the central shaft (18) positioned in the inner cavity of the inner pipe sleeve (13);
when the oil-water interface is formed in the middle chamber, the first floating disc (19) floats at the oil-water interface, and when the height of the oil-water interface changes up and down, the first floating disc (19) moves up and down, so that the adjusting disc (21) moves close to or away from the conductive coil (22).
2. The multistage oil-water separator according to claim 1, wherein the driving sleeve (15) is embedded with an exciting coil (24), the top end of the ball head rod (17) is made of magnetic materials, the conducting coil (22) is electrically connected with the exciting coil (24), the conducting coil (22) generates induction current to be led into the exciting coil (24), and when the exciting coil (24) is electrified, electromagnetic acting force which downwards repels the ball head rod (17) is generated.
3. A method for separating oil from water by using the multi-stage oil-water separator according to claim 2, characterized by comprising the steps of:
S1, introducing an oil-water mixed solution into an input port (6) at a first pressure P1, enabling the oil-water mixed solution to enter a bottom shell (2) along a spiral channel, and depositing moisture and impurities in the oil-water mixed solution in a liquid accumulation cavity of the bottom shell (2) to realize primary oil-water separation;
S2, enabling the oil-water mixed liquid to flow into a middle cavity through an inner pipe sleeve (13), driving an impeller (23) to rotate, filtering by a coalescing filter element (11), discharging oil through an output port (7), depositing water in the middle cavity under the action of gravity, forming an oil-water interface in the middle cavity, realizing secondary oil-water separation, enabling a first floating disc (19) to move upwards along with the rising of the height of the oil-water interface, enabling an adjusting disc (21) to move close to a conductive coil (22), enabling the adjusting disc (21) to rotate, and enabling the conductive coil (22) to generate induction current;
S3, the conductive coil (22) generates induction current to be led into the exciting coil (24), after the exciting coil (24) is electrified, electromagnetic acting force which downwards repels the ball head rod (17) is generated, the ball head end of the ball head rod (17) is driven to be separated from the conical hole (16), and water in the middle cavity is discharged from the backflow port (9), so that the height of an oil-water interface is lowered.
4. A separation method of a multi-stage oil-water separator according to claim 3, wherein in the step S1, the output port (7) is closed, the oil-water mixture is led into the input port (6) at the second pressure P2, and P2> P1, the oil-water mixture is subjected to primary oil-water separation treatment, P2 overcomes the acting force of the return spring (25), the ball end of the ball head rod (17) is driven to be separated from the conical hole (16), and the mixture in the middle cavity is discharged from the return port (9) to realize oil-water separation in a standby state.
5. A separation method of a multi-stage oil-water separator according to claim 4, wherein a plurality of unit separators are taken, and an expansion port (8) of one unit separator is communicated with an input port (6) of the other unit separator by a pipeline, so that the series connection of the plurality of unit separators is realized, and the multi-stage oil-water separation of an oil-water mixture is realized.
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| CN202510366866.2A CN120025042B (en) | 2025-03-26 | 2025-03-26 | Multi-stage oil-water separator and separation method thereof |
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| CN217025420U (en) * | 2021-04-06 | 2022-07-22 | 四川龙锦宇科技有限公司 | Oil-water separating device |
| CN115105864A (en) * | 2022-07-15 | 2022-09-27 | 广西上林县林发松香有限公司 | High-efficiency oil-water separator and method for extracting turpentine by using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5603825A (en) * | 1994-07-18 | 1997-02-18 | Costinel; Paul | Multi-stage apparatus for separating immiscible fluids |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN217025420U (en) * | 2021-04-06 | 2022-07-22 | 四川龙锦宇科技有限公司 | Oil-water separating device |
| CN115105864A (en) * | 2022-07-15 | 2022-09-27 | 广西上林县林发松香有限公司 | High-efficiency oil-water separator and method for extracting turpentine by using same |
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