An automatically openable and closable oil and gas recovery valve

Abstract

The utility model discloses an automatic opening and closing's oil gas recovery valve, including the main part, the main part is equipped with oil gas passageway in, the top of main part is installed with the upper cover, the oil gas passageway of main part is provided with movable valve clack, be connected with spring between valve clack and upper cover. The utility model discloses a cylinder drive transmission assembly realizes automatic opening and closing of valve, replaces traditional manual operation, and response speed is fast, can adapt automatic oil gas recovery system, reduces manual intervention, reduces the labor intensity of large -scale oil storage equipment operation, avoids the oil gas leakage risk caused by manual operation delay simultaneously, especially applicable to flammable and explosive environment, improves system security, improves the leakproofness through the setting sealing washer, avoids oil gas leakage, the filter screen of gas inlet end can intercept the particulate impurity in oil gas, prevents the impurity and enters the valve body and wears sealing element or the jam transmission structure, and the detachable design of inner card spring facilitates regular cleaning or replacement filter screen.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas recovery valve technology, specifically an oil and gas recovery valve that can be automatically opened and closed. Background Technology

[0002] The oil and gas recovery valve is a key component for controlling the flow of oil and gas in an oil and gas recovery system.

[0003] A search revealed Chinese Patent Publication No. CN212449004U, which discloses a high-strength oil and gas recovery valve, including a recovery valve body. The recovery valve body has anti-cavity grooves on both the front and rear sides, and a hose connection port is fixedly installed on the right side of the recovery valve body.

[0004] The oil and gas recovery valves in the above cases are manually operated, which is cumbersome. Especially in large oil storage equipment, manual operation is inefficient and labor-intensive. Moreover, the sealing performance is insufficient, which can easily lead to oil and gas leakage. This not only wastes resources but also poses safety hazards. The lack of a filtration structure allows impurities in the oil and gas to easily enter the valve body, causing component wear or blockage and shortening the valve's service life. Therefore, we provide an oil and gas recovery valve that can be automatically opened and closed. Utility Model Content

[0005] The purpose of this invention is to provide an automatically opening and closing oil and gas recovery valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatically opening and closing oil and gas recovery valve, comprising a main body, an oil and gas passage inside the main body, a top cover installed on the top of the main body, a movable valve disc arranged in the oil and gas passage of the main body, a spring connected between the valve disc and the top cover, a first sealing ring provided on the edge of the valve disc, a filter assembly provided at the air inlet end of the main body, a cylinder bracket installed on the main body, a cylinder installed on the cylinder bracket, a transmission assembly connected to the output end of the cylinder, the transmission assembly being drivenly connected to the valve disc, and an air pipe connector connected to the cylinder.

[0007] Preferably, the filter assembly includes a filter screen and an inner retaining spring. The air inlet end of the main body has an installation groove, the filter screen is embedded in the installation groove, and the inner retaining spring is engaged with the edge of the installation groove to fix the filter screen.

[0008] Preferably, the transmission assembly includes a lever, a central shaft, and a triangular pressure plate. One end of the lever is hinged to the output end of the cylinder. The central shaft passes through the middle of the lever. One end of the triangular pressure plate is connected to the central shaft. The other end of the triangular pressure plate contacts the valve disc. The lever is connected to the main body by hollow rivets. A second PTFE bushing is fitted on the surface of the central shaft.

[0009] Preferably, a push rod is provided between the triangular pressure plate and the valve disc, and a first PTFE bushing and a steel sleeve are sleeved on the outer side of the push rod, with the first PTFE bushing located between the steel sleeve and the main body.

[0010] Preferably, a sealing gasket is provided between the valve disc and the upper cover, the triangular pressure plate is fixedly connected to the main body by a spring washer, a first internal hex screw and a second nut, and a second sealing ring is provided at the contact point between the second PTFE bushing and the top rod.

[0011] Preferably, the cylinder is fixedly connected to the cylinder bracket by a second anti-loosening nut, a first nut, a first external hexagonal screw, and a flat washer. The cylinder bracket is fixedly connected to the main body by a second external hexagonal screw. A third PTFE bushing is provided at the connection between the output end of the cylinder and the lever.

[0012] Preferably, the air pipe connector is equipped with an easy-release plug, the air pipe connector is connected to the cylinder connector via a cylinder, and the cylinder connector and the cylinder are fixed together by a first anti-loosening nut and a third internal hex screw.

[0013] Preferably, the lever is equipped with a handle, which is fixed to the central shaft by a second hex screw and a large washer.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention achieves automatic valve opening and closing through a cylinder-driven transmission assembly, replacing traditional manual operation. It offers fast response and is compatible with automated oil and gas recovery systems, reducing manual intervention and the labor intensity of operating large oil storage equipment. It also avoids the risk of oil and gas leakage caused by delays in manual operation, making it particularly suitable for flammable and explosive environments and enhancing system safety. The sealing ring improves the sealing performance and prevents oil and gas leakage. The filter screen at the air inlet can intercept particulate impurities in the oil and gas, preventing impurities from entering the valve body and wearing down the seals or jamming the transmission structure. The detachable design of the internal snap ring facilitates regular cleaning or replacement of the filter screen. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an exploded view of the three-dimensional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention from the side view.

[0019] Figure 4 This is a structural cross-sectional view of the front view of this utility model;

[0020] Figure 5This is a three-dimensional structural diagram of the main body of this utility model.

[0021] In the diagram: 1. Main body; 2. Valve disc; 3. Spring; 4. First sealing ring; 5. Top cover; 6. Sealing gasket; 7. First PTFE bushing; 8. Steel sleeve; 9. Push rod; 10. Lever; 11. Hollow rivet; 12. Third PTFE bushing; 13. Second sealing ring; 14. Second PTFE bushing; 15. Central shaft; 16. Triangular pressure plate; 17. Handle; 18. Spring washer; 19. First hex socket screw; 20. ... 21. Large washer; 22. Third internal hex socket screw; 23. First lock nut; 24. Cylinder connector; 25. Cylinder; 26. Air pipe connector; 27. Second lock nut; 28. First nut; 29. ​​First external hex socket screw; 30. Flat washer; 31. Internal retaining circlip; 32. Filter screen; 33. Cylinder bracket; 34. Easy plug; 35. Second external hex socket screw; 36. Second nut. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses an automatically opening and closing oil and gas recovery valve. For example... Figure 1-5As shown, the device includes a main body 1, which has an internal oil and gas passage. A top cover 5 is mounted on the top of the main body 1. A movable valve disc 2 is installed within the oil and gas passage of the main body 1. A spring 3 connects the valve disc 2 to the top cover 5. A first sealing ring 4, made of fluororubber and having an annular structure, is provided on the edge of the valve disc 2. This sealing ring 4 is embedded in the outer circumferential groove of the valve disc 2. When the valve disc 2 is closed, the sealing ring is elastically deformed by the pressure of the inner wall of the oil and gas passage, filling the gap between the valve disc 2 and the passage, thus blocking the oil and gas leakage path. It is the core component for valve sealing. A cylinder bracket 33 is mounted on the main body 1, and a cylinder 25 is mounted on the cylinder bracket 33. The transmission assembly connects to the valve disc 2. The cylinder 25 is connected to an air pipe connector 26. The main body 1 is the basic load-bearing structure of the entire oil and gas recovery valve. The oil and gas passage opened through it is the core path for oil and gas flow. The top of the main body 1 is used to install the top cover 5, the side wall is used to fix the cylinder bracket 33, and the air inlet is used to install the filter assembly. The whole provides the installation benchmark and support for all components such as valve disc 2 and transmission assembly, ensuring that all structures work together. The cylinder body of cylinder 25 is made of aluminum alloy. Cylinder 25 is a pneumatic actuator. It is connected to an external air source through air pipe connector 26. It can realize the extension and retraction of piston rod under air pressure drive, providing power to the transmission assembly. It is the core driving component for automatic opening and closing of valve.

[0025] Please see Figure 1-4 The main body 1 has a filter assembly at its air inlet end, which includes a filter screen 32 and an inner retaining spring 31. The air inlet end of the main body 1 has an installation groove into which the filter screen 32 is embedded. The filter screen 32, embedded in the installation groove at the air inlet end of the main body 1, can intercept particulate impurities with a diameter ≥50μm in the oil and gas, preventing impurities from entering the valve body and wearing the first sealing ring 4 or jamming the transmission components, thus protecting the internal structure of the valve. The inner retaining spring 31, a ring-shaped elastic structure, is engaged with the edge of the installation groove to fix the filter screen 32 firmly within the installation groove, preventing the filter screen 32 from loosening or falling off under the impact of oil and gas. It is easy to disassemble, clean or replace. The output end of the cylinder 25 is connected to a transmission assembly, which includes a lever 10, a central shaft 15 and a triangular pressure plate 16. One end of the lever 10 is hinged to the output end of the cylinder 25. The central shaft 15 passes through the middle of the lever 10. One end of the triangular pressure plate 16 is connected to the central shaft 15. The other end of the triangular pressure plate 16 contacts the valve disc 2. The lever 10 is connected to the main body 1 by a hollow rivet 11. A second PTFE bushing 14 is sleeved on the surface of the central shaft 15. A push rod 9 is provided between the triangular pressure plate 16 and the valve disc 2. A first PTFE bushing 7 and a steel sleeve 8 are sleeved on the outside of the push rod 9. The first PTFE bushing 7 is located between the steel sleeve 8 and the main body 1.

[0026] Please see Figure 1-4A sealing gasket 6 is provided between the valve disc 2 and the upper cover 5. The sealing gasket 6 is made of nitrile rubber. The triangular pressure plate 16 is fixedly connected to the main body 1 through a spring washer 18, a first internal hexagon screw 19, and a second nut 36. The spring washer 18 is fitted onto the head of the first internal hexagon screw 19 and uses elastic deformation to offset vibration and prevent the screw from loosening. A second sealing ring 13 is provided at the contact point between the second PTFE bushing 14 and the push rod 9. The cylinder 25 is fixedly connected to the cylinder bracket 33 through a second anti-loosening nut 27, a first nut 28, a first external hexagon screw 29, and a flat washer 30. To increase the contact area between the screw and the connected part and prevent damage to the surface of the part when the screw is tightened, the cylinder bracket 33 is fixedly connected to the main body 1 by the second external hexagon screw 35. A third PTFE bushing 12 is provided at the connection between the output end of the cylinder 25 and the lever 10. The PTFE bushing is made of polytetrafluoroethylene. An easy-release plug 34 is installed on the air pipe connector 26. The air pipe connector 26 is connected to the cylinder connector 24 through the cylinder 25. The cylinder connector 24 and the cylinder 25 are fixed by the first anti-loosening nut 23 and the third internal hexagon screw 22. The first anti-loosening nut 23 is used for The connection between cylinder connector 24 and cylinder 25 is locked. The second anti-loosening nut 27 is used to fix the air pipe connector 26. The friction between the threads prevents loosening caused by vibration. A handle 17 is installed on the lever 10. The handle 17 is fixed to the central shaft 15 by the second hexagonal screw 20 and the large washer 21. The components are: main body 1, valve disc 2, spring 3, upper cover 5, steel sleeve 8, push rod 9, lever 10, hollow rivet 11, central shaft 15, triangular pressure plate 16, handle 17, spring washer 18, first hexagonal screw 19, second hexagonal screw 20, and large washer 21. The third internal hex screw 22, the first anti-loosening nut 23, the cylinder connector 24, the second anti-loosening nut 27, the first nut 28, the first external hex screw 29, the flat washer 30, the internal retaining spring 31, the filter screen 32, the cylinder bracket 33, the second external hex screw 35, and the second nut 36 are all made of 304 stainless steel. If the cylinder 25 system malfunctions, hold the handle 17 and turn the lever 10 clockwise. Through the same transmission path as automatic opening, the valve disc 2 is pushed open. Turning the handle 17 in the opposite direction will reset the spring 3 and drive the valve disc 2 to close, thus realizing emergency opening and closing.

[0027] When in use, open the air source valve, and compressed air enters the cylinder 25 through the air pipe connector 26 and the cylinder connector 24, pushing the piston rod inside the cylinder 25 to extend. The piston rod drives the lever 10 to rotate clockwise around the hollow rivet 11. At this time, the central shaft 15 rotates synchronously with the lever 10, and pushes the push rod 9 downward through the triangular pressure plate 16. The push rod 9 overcomes the elastic force of the spring 3 and pushes the valve disc 2 to slide downward along the oil and gas passage, so that the first sealing ring 4 separates from the inner wall of the passage. The oil and gas enter the passage after being filtered by the filter screen 32, realizing the opening. During the transmission process, the first PTFE bushing 7, the second PTFE bushing 14 and the third PTFE bushing 12 reduce the friction of the parts, and the steel sleeve 8 enhances the rigidity of the push rod 9 to ensure smooth transmission without jamming.

[0028] Closing the valve: When the air source valve is closed, the air pressure inside the cylinder 25 is released. The restoring force of the spring 3 pushes the valve disc 2 upward. The valve disc 2 drives the push rod 9, the triangular pressure plate 16 and the lever 10 to return to their original positions. The first sealing ring 4 fits tightly against the inner wall of the oil and gas passage, blocking the flow of oil and gas and achieving closure.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatically opening and closing oil and gas recovery valve, characterized in that: The system includes a main body (1), which has an oil and gas passage inside. A top cover (5) is installed on the top of the main body (1). A movable valve disc (2) is installed in the oil and gas passage of the main body (1). A spring (3) is connected between the valve disc (2) and the top cover (5). A first sealing ring (4) is provided on the edge of the valve disc (2). A filter assembly is provided at the air inlet end of the main body (1). A cylinder bracket (33) is installed on the main body (1). A cylinder (25) is installed on the cylinder bracket (33). A transmission assembly is connected to the output end of the cylinder (25). The transmission assembly is connected to the valve disc (2) in a transmission connection. A pipe connector (26) is connected to the cylinder (25).

2. The automatically opening and closing oil and gas recovery valve according to claim 1, characterized in that: The filter assembly includes a filter screen (32) and an inner retaining spring (31). The air inlet end of the main body (1) is provided with an installation groove. The filter screen (32) is embedded in the installation groove, and the inner retaining spring (31) is engaged with the edge of the installation groove to fix the filter screen (32).

3. The automatically opening and closing oil and gas recovery valve according to claim 1, characterized in that: The transmission assembly includes a lever (10), a central shaft (15), and a triangular pressure plate (16). One end of the lever (10) is hinged to the output end of the cylinder (25). The central shaft (15) passes through the middle of the lever (10). One end of the triangular pressure plate (16) is connected to the central shaft (15). The other end of the triangular pressure plate (16) is in contact with the valve disc (2). The lever (10) is connected to the main body (1) by a hollow rivet (11). A second PTFE bushing (14) is fitted on the surface of the central shaft (15).

4. The automatically opening and closing oil and gas recovery valve according to claim 3, characterized in that: A push rod (9) is provided between the triangular pressure plate (16) and the valve disc (2). A first PTFE bushing (7) and a steel sleeve (8) are sleeved on the outside of the push rod (9). The first PTFE bushing (7) is located between the steel sleeve (8) and the main body (1).

5. The automatically opening and closing oil and gas recovery valve according to claim 3, characterized in that: A sealing gasket (6) is provided between the valve disc (2) and the upper cover (5). The triangular pressure plate (16) is fixedly connected to the main body (1) through a spring washer (18), a first internal hexagon screw (19) and a second nut (36). A second sealing ring (13) is provided at the contact point between the second PTFE bushing (14) and the top rod (9).

6. The automatically opening and closing oil and gas recovery valve according to claim 3, characterized in that: The cylinder (25) is fixedly connected to the cylinder bracket (33) by the second anti-loosening nut (27), the first nut (28), the first external hexagonal screw (29) and the flat washer (30). The cylinder bracket (33) is fixedly connected to the main body (1) by the second external hexagonal screw (35). A third PTFE bushing (12) is provided at the connection between the output end of the cylinder (25) and the lever (10).

7. The automatically opening and closing oil and gas recovery valve according to claim 1, characterized in that: An easy-to-use plug (34) is installed on the air pipe connector (26). The air pipe connector (26) is connected to the cylinder connector (24) through the cylinder (25). The cylinder connector (24) and the cylinder (25) are fixed together by a first anti-loosening nut (23) and a third internal hex screw (22).

8. The automatically opening and closing oil and gas recovery valve according to claim 3, characterized in that: A handle (17) is mounted on the lever (10), and the handle (17) is fixed to the central shaft (15) by a second hex screw (20) and a large washer (21).

Images