Double valve seat adjustable flow valve with medium direction switching function

Abstract

The utility model discloses a kind of double valve seat adjustable flow valve with medium direction switching function, comprising: main valve body module assembly, valve plate module assembly and valve seat module assembly, the lower end of valve plate module assembly and the lower end of two valve seat module assembly are all arranged in main valve body module assembly, valve plate module assembly is arranged between two valve seat module assembly. Through the application of the utility model, a kind of double valve seat adjustable flow valve with medium direction switching function is presented, which can control the flow and the direction of one-way flow of medium in high-pressure manifold by controlling the up-down movement of single-side valve seat, and also can realize the bidirectional disconnecting and closing function of valve by controlling the up-down movement of valve plate. In addition, the flow valve has simple structure, which is not only convenient to install and maintain, but also helps to reduce production cost and reduce the risk of failure.

Description

Technical Field

[0001] This utility model relates to the field of flow valve technology, and in particular to a dual-seat adjustable flow valve with a medium direction switching function. Background Technology

[0002] In industries such as petrochemicals, natural gas extraction and transportation, and high-pressure hydraulics, flow valves play an indispensable role in fluid transmission through high-pressure manifolds. However, existing flow valves still have shortcomings in practical applications. On the one hand, existing flow valves struggle to simultaneously achieve the three key functions of precise flow control, reliable unidirectional flow control, and bidirectional disconnection and shut-off. Traditional single-seat flow valves can only control flow in one direction, and traditional check valves have poor sealing performance under high-pressure environments, making them prone to backflow. This not only wastes energy but also poses safety hazards; for example, in the water injection process of oil extraction, backflow can damage oil wells. On the other hand, to solve these problems, multiple valves are often combined, but this approach complicates the overall structure, significantly increases costs, makes installation and maintenance difficult, and also raises the risk of system failure. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a dual-seat adjustable flow valve with medium direction switching function, including: a main valve body module assembly, a valve plate module assembly and a valve seat module assembly, wherein the lower end of the valve plate module assembly and the lower ends of the two valve seat module assemblies are both located in the main valve body module assembly, and the valve plate module assembly is located between the two valve seat module assemblies.

[0004] In another preferred embodiment, the main valve body module assembly includes a main valve body and a valve cover, the valve cover being connected to the upper end of the main valve body.

[0005] In another preferred embodiment, each of the valve seat module assemblies includes: a valve seat control handle, a valve seat control rod, a valve seat connecting block, and a valve seat. The lower end of the valve seat control rod passes through the valve cover and extends into the main valve body. The valve seat connecting block and the valve seat are both disposed in the main valve body. The valve seat connecting block is disposed between the valve seat control rod and the valve seat and connects the valve seat control rod and the valve seat. The valve seat control handle is disposed at the upper end of the valve cover and passes through the valve seat control rod.

[0006] In another preferred embodiment, the valve plate module assembly includes: a valve plate control lever, a valve plate control handle, a valve plate, and a valve plate connecting block. The valve plate connecting block and the valve plate are both disposed in the main valve body. The valve plate connecting block is rotatably connected to the valve plate. Two valve plate control levers are disposed at the upper end of the valve plate connecting block. The upper ends of the valve plate control levers pass through the valve cover and extend out of the main valve body. The valve plate control handle is disposed between the two valve plate control levers.

[0007] In another preferred embodiment, the valve seat has grooves on both sides and a through hole in the middle.

[0008] In another preferred embodiment, it further includes: an adjusting pin, wherein the adjusting pin is provided on the side of the two valve seat control levers that are far apart from each other and on the side of the two valve plate control levers that are far apart from each other, and the lower end of the adjusting pin abuts against the valve cover.

[0009] In another preferred embodiment, a locking pin is further included, wherein the locking pin is provided on the side where the two valve plate control levers are close to each other and on the side where the two valve seat control levers are close to each other, the lower end of the locking pin abuts against the valve cover, and the locking pin is positioned opposite the adjusting pin.

[0010] In another preferred embodiment, it further includes: a valve plate positioning pin, wherein the valve plate connecting block and the valve plate are rotatably connected by the valve plate positioning pin.

[0011] In another preferred embodiment, both the valve seat control lever and the valve plate control lever are provided with a plurality of adjustment holes, and the locking pin and the adjustment pin are both engaged with the adjustment holes.

[0012] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, a dual-seat adjustable flow valve with medium direction switching function is proposed. By controlling the up and down movement of one side of the valve seat, it can control the flow rate and unidirectional flow direction of the medium in the high-pressure pipe manifold. It can also realize the bidirectional opening and closing function of the valve by controlling the up and down movement of the valve plate. In addition, the flow valve has a simple structure, which is not only easy to install and maintain, but also helps to reduce production costs and reduce the risk of failure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a dual-seat adjustable flow valve with media direction switching function according to the present invention;

[0014] Figure 2 This is a diagram illustrating the usage status of a dual-seat adjustable flow valve with media direction switching function according to this utility model.

[0015] Figure 3 This is a cross-sectional view of a dual-seat adjustable flow valve with media direction switching function according to this utility model.

[0016] In the attached image:

[0017] 1. Main valve body; 2. Valve plate control lever; 3. Locking pin; 4. Valve cover; 5. Valve plate control handle; 6. Valve seat control handle; 7. Valve seat control lever; 8. Adjusting pin; 9. Valve seat connecting block; 10. Valve seat; 11. Valve plate; 12. Valve plate connecting block; 13. Valve plate mounting pin. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0021] like Figure 1-3 As shown, a preferred embodiment of a dual-seat adjustable flow valve with media direction switching function is illustrated, comprising: a main valve body module assembly, a valve plate module assembly, and a valve seat module assembly. The lower end of the valve plate module assembly and the lower ends of the two valve seat module assemblies are both located within the main valve body module assembly, and the valve plate module assembly is located between the two valve seat module assemblies.

[0022] Furthermore, as a preferred embodiment, the main valve body module assembly includes: a main valve body 1 and a valve cover 4, with the valve cover 4 connected to the upper end of the main valve body 1.

[0023] Furthermore, as a preferred embodiment, each valve seat module assembly includes: a valve seat control handle 6, a valve seat control rod 7, a valve seat connecting block 9, and a valve seat 10. The lower end of the valve seat control rod 7 passes through the valve cover 4 and extends into the main valve body 1. The valve seat connecting block 9 and the valve seat 10 are both disposed within the main valve body 1. The valve seat connecting block 9 is disposed between the valve seat control rod 7 and the valve seat 10 and connects the valve seat control rod 7 and the valve seat 10. The valve seat control handle 6 is disposed at the upper end of the valve cover 4 and passes through the valve seat control rod 7.

[0024] Furthermore, as a preferred embodiment, the valve plate module assembly includes: a valve plate control lever 2, a valve plate control handle 5, a valve plate 11, and a valve plate connecting block 12. Both the valve plate connecting block 12 and the valve plate 11 are disposed inside the main valve body 1. The valve plate connecting block 12 is rotatably connected to the valve plate 11. Two valve plate control levers 2 are disposed at the upper end of the valve plate connecting block 12. The upper ends of the valve plate control levers 2 pass through the valve cover 4 and extend out of the main valve body 1. The valve plate control handle 5 is disposed between the two valve plate control levers 2.

[0025] Furthermore, as a preferred embodiment, the main valve body 1 has a recessed seat, and the valve plate connecting block 12 is engaged with the recessed seat.

[0026] Furthermore, in a preferred embodiment, the valve plate 11 is located between the two valve seats 10 and is in a sealing fit with the two valve seats 10. Further, a sealing ring is provided on the side of the valve seat 10 near the valve plate 11.

[0027] Furthermore, in a preferred embodiment, the valve seat 10 has grooves on both sides and a through hole in the center. The through hole allows media to pass through.

[0028] Furthermore, in a preferred embodiment, the main valve body 1 has a boss that mates with a groove. The boss not only provides a sealing fit with the groove but also ensures more stable vertical movement of the valve seat 10. During the vertical movement of the valve seat 10, the boss provides guidance and limiting functions, preventing the valve seat 10 from shifting or wobbling.

[0029] Furthermore, as a preferred embodiment, it also includes: adjusting pin 8, adjusting pin 8 is provided on the side of the two valve seat control levers 7 that are far apart from each other and on the side of the two valve plate control levers 2 that are far apart from each other, and the lower end of adjusting pin 8 abuts against valve cover 4.

[0030] Furthermore, as a preferred embodiment, it also includes: a locking pin 3, which is provided on the side where the two valve plate control levers 2 are close to each other and on the side where the two valve seat control levers 7 are close to each other. The lower end of the locking pin 3 abuts against the valve cover 4, and the locking pin 3 is positioned opposite the adjusting pin 8. Further, the locking pin 3 is used to lock the adjusting pin 8.

[0031] Furthermore, as a preferred embodiment, it also includes: a valve plate positioning pin 13, wherein the valve plate connecting block 12 and the valve plate 11 are rotatably connected by the valve plate positioning pin 13.

[0032] Furthermore, as a preferred embodiment, both the valve seat control lever 7 and the valve plate control lever 2 are provided with several adjustment holes, and the locking pin 3 and the adjusting pin 8 are engaged with the adjustment holes.

[0033] The working principle of this utility model is as follows: When in use, the locking pin 3 and adjusting pin 8 can be removed first. Then, the valve seat control handle 6 can be manually pulled to drive the valve seat 10 to move up and down. The valve plate control handle 5 can be manually pulled to drive the valve plate 11 to move up and down. When the valve seat 10 or valve plate 11 is moved to a suitable position, the locking pin 3 and adjusting pin 8 can be installed in the corresponding adjusting hole to fix the height of the valve plate 11 or valve seat 10.

[0034] Specifically, see Figure 1 As shown, when it is necessary to put the flow valve in the fully open state of the unidirectional left flow valve, the locking pin 3 and adjusting pin 8 on the left valve seat control lever 7 can be removed first. Then, manually pull the left valve seat control handle 6 upward so that the left valve seat control lever 7 can drive the left valve seat 10 to move upward. When the upper end face of the left valve seat connecting block 9 contacts the lower end face of the valve cover 4, stop pulling and set the locking pin 3 and adjusting pin 8 in the corresponding adjusting hole. At this time, when the medium flows from right to left, it can impact the valve plate 11 so that the valve plate 11 can rotate towards the left valve seat 10 and finally contact the lower end face of the left valve seat 10. The medium can finally pass through the main valve body 1 from right to left.

[0035] When it is necessary to put the flow valve in the half-open state of the one-way left flow valve, the locking pin 3 and adjusting pin 8 on the left valve seat control lever 7 can be removed first. Then, manually pull the left valve seat control handle 6 upward so that the left valve seat control lever 7 can drive the left valve seat 10 to move upward. After the valve seat 10 moves upward a certain distance, stop pulling and set the locking pin 3 and adjusting pin 8 in the corresponding adjusting hole. When the medium flows from right to left, it can impact the valve plate 11 so that the valve plate 11 can rotate towards the left valve seat 10 and finally contact the lower end face of the left valve seat 10. At this time, the rotation angle of the valve plate 11 is less than the rotation angle of the valve plate 11 in the fully open state of the one-way left flow valve. At this time, the valve plate 11 is tilted and the medium can finally pass through the main valve body 1 from right to left.

[0036] When it is necessary to make the flow valve fully open or half open in the unidirectional right flow valve state, it is only necessary to lift the valve seat 10 on the right side upward. At this time, the medium can only pass through the main valve body 1 from left to right.

[0037] When it is necessary to put the flow valve in the emergency valve bidirectional fully open state, the locking pin 3 and adjusting pin 8 on the valve plate control lever 2 can be removed first. Then, manually pull the valve plate control handle 5 upward so that the valve plate control lever 2 can drive the valve plate 11 to move upward. After the valve plate 11 moves upward a certain distance, stop pulling and set the locking pin 3 and adjusting pin 8 in the corresponding adjusting hole. At this time, the medium can pass through the main valve body 1 from right to left or from left to right.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-seat adjustable flow valve with medium direction switching function, characterized in that, It includes: a main valve body module assembly, a valve plate module assembly, and a valve seat module assembly. The lower end of the valve plate module assembly and the lower ends of the two valve seat module assemblies are both located inside the main valve body module assembly, and the valve plate module assembly is located between the two valve seat module assemblies.

2. The dual-seat adjustable flow valve with medium direction switching function according to claim 1, characterized in that, The main valve body module assembly includes a main valve body and a valve cover, wherein the valve cover is connected to the upper end of the main valve body.

3. The dual-seat adjustable flow valve with medium direction switching function according to claim 2, characterized in that, Each valve seat module assembly includes: a valve seat control handle, a valve seat control rod, a valve seat connecting block, and a valve seat. The lower end of the valve seat control rod passes through the valve cover and extends into the main valve body. The valve seat connecting block and the valve seat are both disposed in the main valve body. The valve seat connecting block is disposed between the valve seat control rod and the valve seat and connects the valve seat control rod and the valve seat. The valve seat control handle is disposed at the upper end of the valve cover and passes through the valve seat control rod.

4. The dual-seat adjustable flow valve with medium direction switching function according to claim 3, characterized in that, The valve plate module assembly includes: a valve plate control lever, a valve plate control handle, a valve plate, and a valve plate connecting block. The valve plate connecting block and the valve plate are both disposed in the main valve body. The valve plate connecting block is rotatably connected to the valve plate. Two valve plate control levers are disposed at the upper end of the valve plate connecting block. The upper ends of the valve plate control levers pass through the valve cover and extend out of the main valve body. The valve plate control handle is disposed between the two valve plate control levers.

5. The dual-seat adjustable flow valve with medium direction switching function according to claim 3, characterized in that, The valve seat has grooves on both sides and a through hole in the middle.

6. The dual-seat adjustable flow valve with medium direction switching function according to claim 4, characterized in that, Also includes: Adjusting pins are provided on the side of the two valve seat control levers that are far apart from each other and on the side of the two valve plate control levers that are far apart from each other. The lower end of the adjusting pin abuts against the valve cover.

7. The dual-seat adjustable flow valve with medium direction switching function according to claim 6, characterized in that, Also includes: The locking pin is provided on the side where the two valve plate control levers are close to each other and on the side where the two valve seat control levers are close to each other. The lower end of the locking pin abuts against the valve cover, and the locking pin is positioned opposite the adjusting pin.

8. The dual-seat adjustable flow valve with medium direction switching function according to claim 4, characterized in that, Also includes: A valve plate positioning pin is provided, and the valve plate connecting block is rotatably connected to the valve plate via the valve plate positioning pin.

9. The dual-seat adjustable flow valve with medium direction switching function according to claim 7, characterized in that, Both the valve seat control lever and the valve plate control lever are provided with several adjustment holes, and the locking pin and the adjustment pin are engaged with the adjustment holes.

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