KR101962332B1 - Gate Valve Integrated In Butterfly Valve, And Method for Working the Same - Google Patents

Abstract

The present invention relates to a butterfly valve capable of selectively performing a function of a gate valve for completely shielding a flow path of a disk by moving in a vertical direction with respect to a flow path, The butterfly valve integrated gate valve according to the present invention is characterized in that the butterfly valve integrated gate valve of the present invention is a butterfly valve integrated gate valve having an inlet port through which a fluid flows into a front portion and a port through which a fluid is discharged, Body; A valve hole communicating with the flow path is formed in the lower portion of the flow path between the inlet and the outlet so as to be opened in the front and rear direction and the upper portion is formed to extend to the outside through the upper portion of the valve body Gate disc; A flow rate adjusting disk having a shape corresponding to a valve hole of the gate disk and installed to rotate about an axis vertically upright from the inside of the valve hole to adjust an opening degree of the valve hole; A rotary stem passing through the inside of the gate disk and connected to an upper end of the flow rate adjusting disk and relatively rotating with respect to the gate disk; And a secondary shielding disk installed in the gate disk so as to be movable upward and downward and having an upper end exposed through the upper portion of the gate disk to the outside of the valve body and a lower end opening and closing the valve hole.

Description

[0001] The present invention relates to a butterfly valve integrated gate valve and a method of operating the butterfly valve,

The present invention relates to a valve, and more particularly, to a valve that selectively moves a function of a gate valve for completely shielding a flow path of a disk by moving in a vertical direction with respect to a flow path, The present invention relates to a butterfly valve integrated gate valve having a function of a butterfly valve capable of being operated by a user.

A valve is a device that controls the flow rate, flow rate, and pressure of a fluid flowing through a pipe, and has been developed and used in various types. Among these valves, there are a gate valve used mainly for interrupting the fluid and a butterfly valve used mainly for regulating the flow rate of the fluid.

The gate valve is a valve in which a flat disk is vertically moved vertically to move the fluid passage vertically to completely open or shut off the flow passage. The butterfly valve rotates the disk in a range of 90 [deg. So that the flow rate can be adjusted.

However, the conventional gate valve has the purpose of opening and closing the flow path as described above, and has a drawback that it can not be used for controlling the flow rate. The butterfly valve is used for flow control but is not used for opening and closing. .

Registration No. 10-1468452 (Registered on November 27, 2014) Public Utility Model No. 20-2012-0001326 (Published on February 27, 2012)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of controlling a flow rate of a fluid, The present invention provides a butterfly valve integrated gate valve and a method of operating the butterfly valve, which are combined with a function of a butterfly valve capable of selectively performing a function of controlling a butterfly valve.

According to another aspect of the present invention, there is provided a butterfly valve integrated gate valve comprising: a valve body having an inlet through which a fluid flows into a front portion and an outlet through which a fluid is discharged; A valve hole communicating with the flow path is formed in the lower portion of the flow path between the inlet and the outlet so as to be opened in the front and rear direction and the upper portion is formed to extend to the outside through the upper portion of the valve body Gate disc; A flow rate adjusting disk having a shape corresponding to a valve hole of the gate disk and installed to rotate about an axis vertically upright from the inside of the valve hole to adjust an opening degree of the valve hole; A rotary stem passing through the inside of the gate disk and connected to an upper end of the flow rate adjusting disk and relatively rotating with respect to the gate disk; And a secondary shielding disk installed in the gate disk so as to be movable upward and downward and having an upper end exposed through the upper portion of the gate disk to the outside of the valve body and a lower end opening and closing the valve hole.

A method of operating a butterfly valve integrated gate valve of the present invention having the above-

Shielding the flow path between the inlet port and the outlet port so that the lower end of the gate disk is in close contact with the lower end of the flow path in a state where the flow rate controlling disk and the auxiliary shielding disk shield the valve hole;

And an opening step of moving the gate disk upward by a predetermined distance to completely open the flow path between the inlet port and the outlet port,

When the flow path is to be opened by opening the flow path in the shielding step,

Moving the auxiliary shielding disk upward relative to the gate disk to open the valve hole;

Adjusting the opening degree of the valve hole by rotating the rotating stem and the flow rate adjusting disc at an arbitrary angle;

.

According to the present invention, the flow path can be completely opened or closed by moving the gate disk up and down, and the opening of the valve hole can be adjusted by the rotational motion of the flow rate adjusting disk provided on the gate disk, thereby controlling the flow rate. That is, the present invention provides an advantage that the function of regulating the flow rate of the butterfly valve by the flow rate control disk can be realized simultaneously with the function of opening or shielding the flow path of the gate valve by the gate disk.

In addition, since the valve hole of the gate disk is completely opened or shielded by the auxiliary shielding disk, it is possible to prevent the leakage of the fluid through the flow rate adjusting disk in the state where the flow path is completely blocked, thereby eliminating the leakage phenomenon which is a disadvantage of the butterfly valve There is also an effect.

1 is a side cross-sectional view of a butterfly valve integrated gate valve according to an embodiment of the present invention, in which the flow path is fully closed.
Fig. 2 is a front sectional view showing a state in which the flow path of the gate valve shown in Fig. 1 is completely closed.
FIG. 3 is a side sectional view showing a state in which the flow path of the gate valve shown in FIG. 1 is completely opened.
FIG. 4 is a front sectional view showing a state in which the flow path of the gate valve shown in FIG. 1 is completely opened.
5 is a side cross-sectional view showing an example of a flow rate control operation of the gate valve shown in Fig.
6 is an exploded perspective view showing main components of the gate valve shown in Fig.
FIG. 7 is a perspective view showing a state in which the main components shown in FIG. 6 are coupled.
FIG. 8 is a perspective view showing an operation example of the flow rate adjustment of the main components shown in FIG. 6. FIG.
9 is a cross-sectional view showing the configuration of a part of the gate valve shown in Fig.
10 is a cross-sectional view showing the configuration of another portion of the gate valve shown in Fig.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, as claimed, and it is to be understood that the invention is not limited to the disclosed embodiments.

Hereinafter, referring to the accompanying drawings, a butterfly valve integrated gate valve and its operation method will be described in detail with reference to the following embodiments. Like numbers refer to like elements throughout the drawings.

1 to 10 illustrate a butterfly valve integrated gate valve according to an embodiment of the present invention. A butterfly valve integrated gate valve according to an embodiment of the present invention includes a valve body 10 and a valve body A flow control disk 40 for regulating the opening of the valve hole 21 formed in the lower portion of the gate disk 20, A rotary stem 50 passing through the inside of the gate disk 20 and connected to the upper end of the flow rate regulating disk 40; And an auxiliary shielding disk 30.

The valve body 10 is provided with an inlet 11 through which the fluid flows into the front portion and a discharge port 12 through which the fluid is discharged from the rear portion, The valve seat portion 13 into which the lower end of the disk 20 is inserted is formed to be depressed downward. The valve seat portion 13 may be provided with a main sealing member 25 which is in close contact with the lower end portion of the gate disk 20 and functions as a watertight seal.

A disc housing 14, in which a gate disc 20 is vertically movably received, is connected to an upper portion of the valve body 10. The disc housing 14 may be integrally formed with the valve body 10, but may be separately formed and then fixedly mounted on the valve body 10.

The gate disk 20 is provided so as to be vertically movable in the flow path between the inlet 11 and the outlet 12 to completely shut off or open the flow path. The gate disk 20 has a semicircular curved lower surface and is vertically slidable in the disk housing 14 so as to have a long rectangular parallelepiped shape. The upper portion of the gate disk 20 extends through the upper end of the disk housing 14 and extends to the outside. A handle (not shown) may be provided on the upper end of the gate disk 20 exposed to the outside so that the user can hold it by hand and move it upward and downward easily.

A circular valve hole (21) communicating with the flow path of the valve body (10) is formed in the lower portion of the gate disk (20) so as to open in the front and rear direction. A disk receiving groove 22 in which the auxiliary shielding disk 30 is vertically slidably received is formed on the upper side of the valve hole 21 of the gate disk 20 and the upper end of the gate disk 20, And a stem receiving groove 23 in which the rotary stem 50 is rotatably received is formed to communicate with the upper end of the valve hole 21 and the upper end of the gate disk 20. The disk receiving groove 22 and the stem receiving groove 23 may be formed to be separated from each other.

The auxiliary shielding disk 30 functions to open and close the valve hole 21 while sliding up and down inside the disk receiving groove 22 of the gate disk 20. [ The auxiliary shielding disk 30 has a semicircular curved surface at the lower end thereof and has a rectangular rectangular plate shape. The upper end of the auxiliary shielding disk 30 is exposed to the outside through the upper end of the disk receiving groove 22. The upper end of the auxiliary shielding disk 30 exposed to the outside of the upper end of the gate disk 20 may be provided with a handle (not shown) so that the user can grasp the same by hand and move it up and down.

A sealing member (not shown) is provided between the lower portion of the auxiliary shielding disk 30 and the inner peripheral surface of the valve hole 21 to maintain watertightness.

The auxiliary shielding disk 30 completely shields the valve hole 21 so that even if a minute gap is formed between the outer circumferential surface of the flow rate regulating disk 40 and the inner circumferential surface of the valve hole 21, The leakage of the fluid can be completely prevented. Preferably, the auxiliary shielding disk 30 is disposed in front of the flow control disk 40 in order to fundamentally block leakage of the fluid through the valve hole 21.

The flow rate control disk 40 has a disc shape having a size corresponding to the valve hole 21 of the gate disk 20 and is provided to rotate about an axis vertically upside down inside the valve hole 21, 21) to adjust the flow rate.

The rotary stem 50 is in the shape of an elongated circular bar and is fixedly connected to the upper end of the flow rate regulating disc 40 at the lower end thereof and is fixed to the inside of the stem receiving recess 23 of the gate disk 20 And is rotatably received about an axis. The upper end of the rotary stem 50 is exposed to the outside through the upper end of the stem receiving groove 23 and the stem handle 51 is provided at the upper end so that the rotary stem 50 can be easily rotated by the user. have.

9, in order to keep the gate disk 20 in the raised position when the gate disk 20 is lifted on the flow path in the valve body 10 to open the flow path, the gate disk 20 A plurality of first plunger grooves 26 opened to the outside are formed on both sides of the disk housing 14 and a plurality of first plunger grooves 26 are formed in the disk housing 14 when the gate disk 20 moves upward, A first spring 27 elastically supporting the first ball 27 and a first ball 27 elastically inserted into two first clamping grooves 15 formed on both sides of the inner upper portion of the inner side, Respectively.

10, in order to keep the auxiliary shielding disk 30 in the raised position when the auxiliary shielding disk 30 rises in the gate disk 20 to open the valve hole 21, A plurality of second plunger grooves 31 opened to the outside are formed on both sides of the shielding disk 30 and when the auxiliary shielding disk 30 is moved upward in the respective second plunger grooves 31 A second ball 32 that is elastically inserted into two of the two second clamping grooves 29 formed on both sides of the disk receiving groove 22 and is engaged with the second ball 32 and the second ball 32 elastically supporting the second ball 32 A spring 33 may be installed.

The operation of the gate valve thus constructed will be described in detail as follows.

1 and 3, when the lower end of the gate disk 20 is brought into close contact with the lower end of the flow path in a state that the flow control disk 40 and the auxiliary shield disk 30 completely block the valve hole 21, The flow path between the discharge port 11 and the discharge port 12 is completely shielded by the gate disk 20. At this time, since the valve hole 21 is shielded by the auxiliary shielding disk 30, leakage of fluid through the valve hole 21 does not occur.

When the flow path is completely opened in the state where the flow path in the valve body 10 is completely shut off by the gate disk 20, as shown in FIGS. 2 and 4, (Not shown) and moves the gate disk 20 upward by a certain distance, the flow path between the inlet 11 and the outlet 12 is completely opened.

At this time, the first balls 27 provided on both sides of the gate disk 20 are elastically inserted into the first plunger grooves 26 formed on both sides of the disk housing 14 of the valve body 10, Is fixed to the disc housing 14 to maintain the raised position.

5, when the opening degree of the flow path of the valve body 10 is adjusted to flow the fluid at a constant flow rate, the auxiliary shielding disk 30 is moved in a state in which the gate disk 20 completely shields the flow path, And moves upward relative to the gate disk 20 to open the valve hole 21. [ At this time, the valve hole 21 is kept closed by the flow rate regulating disc 40, so that the fluid does not flow.

In this state, when the user holds the stem handle 51 at the upper end of the rotary stem 50 and rotates at an arbitrary angle between 0 ° and 90 ° in one direction, the flow control disk 40 rotates inside the valve hole 21 The opening of the valve hole 21 is adjusted. As a result, the fluid flows through the open portion of the valve hole 21, and the fluid having passed through the valve hole 21 is discharged through the discharge port 12.

As described above, in the gate valve of the present invention, the flow path is completely opened or closed by the upward and downward movement of the gate disk 20, and the flow rate control disk 40 installed in the gate disk 20 rotates the valve hole 21 ) Can be adjusted to control the flow rate. That is, it is possible to realize the function of controlling the flow rate of the butterfly valve by means of the flow rate regulating disc 40.

Also, since the valve hole 21 of the gate disk 20 is completely opened or shielded by the auxiliary shielding disk 30, it is possible to prevent the leakage of the fluid through the flow rate regulating disk 40, Can be eliminated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. And it is to be understood that such modified embodiments belong to the scope of protection of the present invention defined by the appended claims.

10: valve body 11: inlet
12: exhaust port 13: valve seat portion
14: disk housing 15: first clamping groove
20: gate disk 21: valve hole
22: disk receiving groove 23: stem receiving groove
30: auxiliary shielding disk 40: flow control disk
50: rotating stem 51: stem handle

Claims (8)

A valve body (10) having an inlet (11) through which the fluid flows into the front portion and a discharge port (12) through which the fluid is discharged, respectively;
A valve hole (21) communicating with the flow path is formed in a lower portion of the flow path between the inlet (11) and the outlet (12) A gate disc 20 formed to extend outwardly through an upper portion of the gate disc 20;
The valve hole 21 has a shape corresponding to the valve hole 21 of the gate disk 20 and is provided to rotate about an axis vertically upside down from the inside of the valve hole 21, A disk 40;
A rotary stem 50 passing through the inside of the gate disk 20 and connected to the upper end of the flow rate control disk 40 and relatively rotating with respect to the gate disk 20; And
The upper end of the gate disk 20 is exposed to the outside of the valve body 10 through the upper portion of the gate disk 20 and the lower end of the gate disk 20 is opened and closed Auxiliary shielding disk 30;
A butterfly valve integrated gate valve. The apparatus of claim 1, wherein a plurality of first plunger grooves (26) open to the outside are formed at both sides of the gate disk (20), and a gate disk (20) is formed inside each first plunger groove (26) A first ball 27 elastically inserted into two first clamping grooves 15 formed on both sides of an inner upper portion of the valve body 10 when the valve body 10 moves upward, Is provided with a first spring (28) for resiliently supporting the valve (20). The auxiliary shielding disk (30) according to claim 1, wherein the auxiliary shielding disk (30) moves upward relative to the gate disk (20) before opening the valve hole (21) Butterfly Valve Integrated Gate Valve. The disk cartridge according to claim 1, further comprising: a disk receiving groove (22) in which the auxiliary shielding disk (30) is vertically slidably received in an upper portion of a valve hole (21) of the gate disk (20) And a stem accommodating groove (23) rotatably received therein is formed to communicate with the upper end of the valve hole (21) and the upper end of the gate disk (20), respectively. The plasma display apparatus according to claim 4, wherein a plurality of second plunger grooves (31) open to the outside are formed on both sides of the auxiliary shielding disk (30), and auxiliary shielding disks The second ball 32 is elastically inserted into the two second clamping grooves 29 formed on both sides of the disc receiving groove 22 when the first ball 32 and the second ball 32 move upward, And a second spring (33) for resiliently supporting the second spring (33). 2. The butterfly valve integrated gate valve of claim 1, wherein said auxiliary shielding disk (30) is disposed in front of said flow rate regulating disc (40). 2. The butterfly valve integrated gate valve according to claim 1, wherein a sealing material for maintaining a watertightness is provided between a lower portion of the auxiliary shielding disk (30) and an inner peripheral surface of the valve hole (21). 8. A method of operating a butterfly valve integrated gate valve according to any one of claims 1 to 7,
The lower end portion of the gate disk 20 is brought into close contact with the lower end portion of the flow path while the flow rate control disk 40 and the auxiliary shield disk 30 shield the valve hole 21 so that the gap between the inlet port 11 and the discharge port 12 A shielding step of completely shielding the flow path of the fuel cell stack;
And an opening step of moving the gate disk 20 upward by a predetermined distance to completely open the flow path between the inlet port 11 and the outlet port 12,
When the flow path is to be opened by opening the flow path in the shielding step,
Moving the auxiliary shielding disk (30) upward relative to the gate disk (20) to open the valve hole (21);
Adjusting the opening of the valve hole (21) by rotating the rotating stem (50) and the flow rate adjusting disc (40) at an arbitrary angle;
The method comprising the steps < RTI ID = 0.0 > of: < / RTI >

Images