Wellhead valve with filtering function

Abstract

The utility model discloses a wellhead valve with filter function, including valve component, filter dismounting mechanism, fixed establishment and stable rotating mechanism, filter dismounting mechanism includes filter cavity and discharge cavity, the fixed establishment includes the joint pipe and the outer swivel frame, the stable rotating mechanism includes the rotation fixed plate and longitudinal shift ring, filter cavity and discharge cavity intercommunication connection, fluid enters filter cavity from the upper joint pipe, and after the filter of detachable filter board, enters the discharge cavity, and is discharged from the bottom joint pipe, and the joint lever on lateral board is convenient for with fixed establishment connection, and locking spring pushes the pushed block to make the clamping block extend into the joint lever card groove, and the joint pipe sleeve is into the joint lever and realizes quick fixed locking, when needing to dismount, rotates the outer swivel frame, and the rotation pushed block pushes the pushed block and compresses the locking spring, and the clamping block exits the card groove and removes the joint, realizes the quick convenient fixed and dismounting of detachable filter board.

Description

Technical Field

[0001] This utility model relates to the field of wellhead valve technology, and more specifically, to a wellhead valve with a filtering function. Background Technology

[0002] In existing technologies, a wellhead valve with a filtration function is typically used to control the fluid flow in oil and gas wells or water wells and to filter the fluid at the same time to prevent impurities from entering the system. However, its filter components are inconvenient to disassemble or install, especially the internal cleaning process of the filter plate is quite cumbersome, which brings many challenges to equipment maintenance and daily operation.

[0003] Most existing wellhead valves have complex filter assembly designs. Filters or filter plates are usually fixed inside the valve by bolts, clips, and other fastening devices. Because these devices lack quick disassembly and assembly capabilities, operators often need to use special tools, which are often bulky and require a certain amount of time to disassemble and install. This cumbersome disassembly process not only increases the difficulty of operation but also causes operators to spend a lot of time maintaining or replacing filter assemblies.

[0004] During the operation of wellhead valves, the filtration assembly plays a crucial role in removing solid impurities and particles from the fluid. However, with increased usage time, a large amount of impurities accumulates inside the filter plate or filter element, which affects filtration efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a wellhead valve with a filtration function to solve the technical problems mentioned in the background art, such as the inconvenience of disassembling or installing the filter components and the inconvenience of cleaning the inside of the filter plate.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wellhead valve with a filtering function, comprising a valve assembly, a filter disassembly and assembly mechanism, a fixing mechanism, and a stable rotation mechanism. The filter disassembly and assembly mechanism includes a filter chamber and a discharge chamber, which are connected in communication. A detachable filter plate is connected between the filter chamber and the discharge chamber. A top plate is installed on the side wall of the filter chamber. A side plate is installed on the side of the detachable filter plate, and a locking rod is installed on the side plate. The fixing mechanism includes a locking tube and an external rotating frame. The locking tube can be fitted into the locking rod. A locking groove is opened on the outer wall of the locking rod. A locking block is laterally slidably installed on the outer wall of the locking tube. A push block is installed at one end of the locking block. An external rotating frame is rotatably installed on the outer wall of the locking tube. A rotating push block is installed on the external rotating frame. The rotating push block can push the push block, causing the locking block to move away from the locking groove.

[0009] The present invention is further configured such that the stabilizing rotation mechanism includes a fixed plate and a longitudinal moving ring. Multiple sets of fixed plates are installed on the bottom end face of the outer rotating frame. The longitudinal moving ring is longitudinally slidably installed on the outer wall of the clamping tube. A fixed spring is installed on the fixed plate. A positioning groove is opened on the outer wall of the clamping tube. The fixed spring can extend into the positioning groove step by step to stabilize the outer rotating frame on the outer wall of the clamping tube. A positioning pin is installed on one end face of the longitudinal moving ring. The positioning pin can pass through the outer rotating frame to fix the outer rotating frame on the outer wall of the clamping tube and fix the rotating push block.

[0010] The present invention is further configured such that an upper pipe is installed on the side of the filter cavity, the upper pipe is connected to an external device, and the upper pipe is installed on the side of the filter cavity to introduce the fluid to be filtered.

[0011] The present invention is further configured such that a bottom pipe is installed on the side of the discharge cavity, the bottom pipe is connected to an external device, and the bottom pipe is installed on the side of the discharge cavity to transport the filtered fluid to the external device.

[0012] The present invention is further configured such that a bottom plate is installed on the side of the discharge cavity, and the bottom plate and the top plate are connected by a sealing bolt. The bottom plate is installed on the side of the discharge cavity and is connected to the top plate by a sealing bolt to achieve cavity sealing.

[0013] The present invention is further configured such that a contact plate is installed on the outer wall of the clamping tube, and the contact plate is in contact with the top end face of the top connecting plate. The contact plate is installed on the outer wall of the clamping tube and is in contact with the top end face of the top connecting plate to enhance the connection stability.

[0014] The present invention is further configured such that a locking spring is installed between the outer wall of the push block and the locking tube, and the locking spring pushes the push block to make the locking block automatically extend in.

[0015] The present invention is further configured such that a backflush pipe is installed on the side of the discharge cavity, and the output of the backflush pipe is opposite to the detachable filter plate, so that the filter plate can be flushed in reverse to remove the impurities accumulated on the surface.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a wellhead valve with a filtering function, which has the following beneficial effects:

[0018] This utility model is equipped with a filter assembly / disassembly mechanism. The filter chamber and the discharge chamber are connected. Fluid enters the filter chamber through the upper pipe, is filtered by the detachable filter plate, and then enters the discharge chamber and is discharged through the bottom pipe. The snap-fit ​​rod on the side plate facilitates connection with the fixing mechanism. The top plate and the bottom plate are connected by a sealing bolt to ensure the chamber is sealed. The backwash pipe output end is set opposite to the detachable filter plate, which can backwash and remove impurities from the surface of the filter plate, realizing convenient assembly / disassembly of the filter plate and efficient filtration.

[0019] This utility model is equipped with a fixing mechanism. The locking spring pushes the push block to make the locking block extend into the locking rod slot. The locking tube is fitted into the locking rod to achieve quick fixing and locking. When disassembly is required, the outer rotating frame is rotated, the rotating push block pushes the push block to compress the locking spring, the locking block exits the slot to release the locking, and the contact plate contacts the top plate to enhance the connection stability, so as to realize the quick and convenient fixing and disassembly of the detachable filter plate.

[0020] This utility model is equipped with a stable rotation mechanism. When the outer rotating frame is rotated, the rotating spring on the rotating plate extends into the positioning groove on the outer wall of the clamping tube in stages to provide staged positioning and tactile feedback, ensuring accurate and stable rotation. The longitudinal moving ring drives the positioning pin to pass through the outer rotating frame and lock it firmly, preventing the rotating push block from accidentally rotating and causing the clamping block to loosen, thus assisting the precise operation and reliable locking of the fixing mechanism. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the filter chamber and the discharge chamber in this utility model;

[0023] Figure 3 This is a structural schematic diagram of the filter plate installation method in this utility model;

[0024] Figure 4 This is a schematic diagram of the fixing mechanism and the stable rotation mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the internal structure of the fixing mechanism and the stable rotation mechanism in this utility model.

[0026] In the diagram: 1. Valve assembly; 2. Filter chamber; 3. Discharge chamber; 4. Removable filter plate; 5. Top plate; 6. Side plate; 7. Snap-fit ​​rod; 8. Snap-fit ​​pipe; 9. External rotating bracket; 10. Snap-fit ​​groove; 11. Snap-fit ​​block; 12. Push block; 13. Rotating push block; 14. Rotating plate; 15. Longitudinal movement ring; 16. Rotating spring; 17. Positioning groove; 18. Positioning pin; 19. Upper pipe; 20. Bottom pipe; 21. Bottom plate; 22. Contact plate; 23. Locking spring; 24. Backflush pipe. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5 A wellhead valve with a filtering function includes a valve assembly 1, a filter disassembly and assembly mechanism, a fixing mechanism, and a stabilizing rotation mechanism. The filter disassembly and assembly mechanism includes a filter chamber 2 and a discharge chamber 3, which are connected and connected. A detachable filter plate 4 is connected between the filter chamber 2 and the discharge chamber 3. A top plate 5 is installed on the side wall of the filter chamber 2. A side plate 6 is installed on the side of the detachable filter plate 4. A locking rod 7 is installed on the side plate 6. The fixing mechanism includes a locking pipe 8 and an external rotating frame 9. The locking pipe 8 can be inserted into the locking rod 7. A locking groove 10 is opened on the outer wall of the locking rod 7. A locking block 11 is laterally slidably installed on the outer wall of the locking pipe 8. A push block 12 is installed at one end of the locking block 11. An external rotating frame 9 is rotatably installed on the outer wall of the locking pipe 8. A rotating push block 13 is installed on the external rotating frame 9. The rotating push block 13 can push the push block 12, causing the locking block 11 to move away from the locking groove 10.

[0031] In this embodiment, fluid enters the filter chamber 2 through the upper pipe 19, is filtered by the detachable filter plate 4, and then enters the discharge chamber 3, exiting through the bottom pipe 20. When the detachable filter plate 4 needs cleaning or replacement, the sealing bolt connection between the bottom plate 21 and the top plate 5 is removed, and the fixing is released from the snap-fit ​​rod 7 on the side plate 6. The detachable filter plate 4 is then removed for cleaning or replacement. The backflush pipe 24 can output backflush fluid to the detachable filter plate 4 to remove impurities accumulated on the surface of the detachable filter plate 4. After maintenance, the detachable filter plate 4 is reinstalled and connected to the snap-fit ​​pipe 8 via the snap-fit ​​rod 7. The sealing bolts re-fix the top plate 5 and the bottom plate. 21. In the initial state, the locking spring 23 pushes the push block 12 to make the locking block 11 slide laterally into the locking groove 10 of the locking rod 7, and the locking tube 8 is fitted into the locking rod 7 to fix the side plate 6 of the detachable filter plate 4 to the side wall of the filter chamber 2. When disassembly is required, rotate the outer rotating frame 9, and the rotating push block 13 pushes the push block 12 to compress the locking spring 23. The locking block 11 exits the locking groove 10 to release the locking, and the locking tube 8 can be detached from the locking rod 7 to remove the detachable filter plate 4. When reinstalling, the locking tube 8 is fitted into the locking rod 7 and aligned with the locking groove 10. The locking spring 23 resets to make the locking block 11 re-embed into the locking groove 10 to complete the fixing and locking.

[0032] The stabilizing rotation mechanism includes a fixed plate 14 and a longitudinal moving ring 15. Multiple sets of fixed plates 14 are installed on the bottom end face of the outer rotating frame 9. The longitudinal moving ring 15 is longitudinally slidably installed on the outer wall of the clamping tube 8. A fixed spring 16 is installed on the fixed plate 14. A positioning groove 17 is opened on the outer wall of the clamping tube 8. The fixed spring 16 can extend into the positioning groove 17 step by step to stabilize the outer rotating frame 9 on the outer wall of the clamping tube 8. A positioning pin 18 is installed on one end face of the longitudinal moving ring 15. The positioning pin 18 can pass through the outer rotating frame 9 to fix the outer rotating frame 9 on the outer wall of the clamping tube 8 and fix the rotating push block 13.

[0033] In this embodiment, when the outer rotating frame 9 is rotated, the rotating spring 16 on the rotating plate 14 extends into the positioning groove 17 on the outer wall of the clamping pipe 8 step by step, providing the outer rotating frame 9 with staged positioning and tactile feedback, ensuring precise and stable rotation. When the outer rotating frame 9 needs to be completely fixed, the longitudinal moving ring 15 is pushed to make the positioning pin 18 pass through the outer rotating frame 9, and the outer rotating frame 9 is firmly locked on the outer wall of the clamping pipe 8, preventing the rotating push block 13 from rotating accidentally and causing the clamping block 11 to loosen, ensuring that the detachable filter plate 4 is installed reliably.

[0034] Please see Figures 1-5As a supplementary embodiment of a wellhead valve with filtering function for the filter assembly / disassembly mechanism, fixing mechanism, and stable rotation mechanism: An upper pipe 19 is installed on the side of the filter chamber 2, which is connected to external equipment. A bottom pipe 20 is installed on the side of the discharge chamber 3, which is connected to external equipment. A bottom connecting plate 21 is installed on the side of the discharge chamber 3, and the bottom connecting plate 21 and the top connecting plate 5 are connected by a sealing bolt. A contact plate 22 is installed on the outer wall of the clamping pipe 8, and the contact plate 22 is in contact with the top end face of the top connecting plate 5. A locking spring 23 is installed between the push block 12 and the outer wall of the clamping pipe 8. A backflush pipe 24 is installed on the side of the discharge chamber 3, and the output of the backflush pipe 24 is opposite to the detachable filter plate 4.

[0035] More specifically, during operation, fluid enters the filter chamber 2 through the upper pipe 19, is filtered by the detachable filter plate 4, and then enters the discharge chamber 3, exiting through the bottom pipe 20 to external equipment. The locking spring 23 of the fixing mechanism drives the locking block 11 to embed into the locking rod 7 slot 10, thus stably fixing the detachable filter plate 4. The rotating spring 16 of the stabilizing rotation mechanism provides positioning feedback in the positioning groove 17. The positioning pin 18 passes through the outer rotating frame 9 to prevent loosening. When maintenance is required, the sealing bolt is removed, and the outer rotating frame 9 is rotated to make the rotating push block 13 push the pushed block 12, causing the locking block 11 to exit the slot 10. The detachable filter plate 4 can be removed for cleaning or replacement. The backflushing pipe 24 can backflush the detachable filter plate 4 to remove impurities. After maintenance, the filter plate is reinstalled, the locking block 11 automatically locks, and the positioning pin 18 fixes the outer rotating frame 9. The entire device achieves efficient fluid filtration, convenient disassembly and assembly of the filter plate, and stable and reliable fixing.

[0036] In summary, during the use or operation of the overall equipment: when the filter disassembly mechanism is in operation, the fluid enters the filter chamber 2 from the upper pipe 19, passes through the detachable filter plate 4, enters the discharge chamber 3, and is discharged from the bottom pipe 20. When the detachable filter plate 4 needs to be cleaned or replaced, the sealing bolt connection between the bottom plate 21 and the top plate 5 is removed, and the fixing is released from the snap rod 7 on the side plate 6. The detachable filter plate 4 is then removed for cleaning or replacement. The backflush pipe 24 can output backflush fluid to the detachable filter plate 4 to remove impurities accumulated on the surface of the detachable filter plate 4. After maintenance is completed, the detachable filter plate 4 is reinstalled and connected to the snap rod 7 and the snap rod 8. The sealing bolts are then used to re-fix the top plate 5 and the bottom plate 21.

[0037] When the fixing mechanism is in operation, in the initial state, the locking spring 23 pushes the push block 12 to make the locking block 11 slide laterally into the locking groove 10 of the locking rod 7, and the locking tube 8 is fitted into the locking rod 7 to fix the side plate 6 of the detachable filter plate 4 to the side wall of the filter chamber 2. When disassembly is required, rotate the outer rotating frame 9, and the rotating push block 13 pushes the push block 12 to compress the locking spring 23. The locking block 11 exits the locking groove 10 to release the locking, and the locking tube 8 can be detached from the locking rod 7 to remove the detachable filter plate 4. When reinstalling, the locking tube 8 is fitted into the locking rod 7 and aligned with the locking groove 10. The locking spring 23 resets to make the locking block 11 re-embed into the locking groove 10 to complete the fixing and locking.

[0038] When the rotating mechanism needs to be stable, when the outer rotating frame 9 is rotated, the rotating spring 16 on the rotating plate 14 extends into the positioning groove 17 on the outer wall of the clamping pipe 8 in stages, providing staged positioning and tactile feedback for the outer rotating frame 9, ensuring accurate and stable rotation. When the outer rotating frame 9 needs to be completely fixed, the longitudinal moving ring 15 is pushed so that the positioning pin 18 passes through the outer rotating frame 9, and the outer rotating frame 9 is firmly locked on the outer wall of the clamping pipe 8, preventing the rotating push block 13 from rotating accidentally and causing the clamping block 11 to loosen, ensuring that the detachable filter plate 4 is installed reliably.

[0039] During operation, fluid enters the filter chamber 2 through the upper pipe 19, is filtered by the detachable filter plate 4, and then enters the discharge chamber 3. It is discharged to external equipment through the bottom pipe 20. The locking spring 23 of the fixing mechanism drives the locking block 11 to embed into the locking rod 7 slot 10, which stably fixes the detachable filter plate 4. The rotating spring 16 of the stabilizing rotation mechanism provides positioning feedback in the positioning groove 17. The positioning pin 18 passes through the outer rotating frame 9 to prevent loosening. When maintenance is required, the sealing bolt is removed, and the outer rotating frame 9 is rotated so that the rotating push block 13 pushes the pushed block 12. The locking block 11 exits the slot 10, and the detachable filter plate 4 is taken out for cleaning or replacement. The backflushing pipe 24 can backflush the detachable filter plate 4 to remove impurities. After maintenance, the filter plate is reinstalled, the locking block 11 automatically locks, and the positioning pin 18 fixes the outer rotating frame 9. The entire device achieves efficient fluid filtration, convenient disassembly and assembly of the filter plate, and stable and reliable fixation.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A wellhead valve with a filtering function, comprising a valve assembly (1), a filter disassembly and assembly mechanism, a fixing mechanism, and a stabilizing rotation mechanism, characterized in that: The filter assembly and disassembly mechanism includes a filter chamber (2) and a discharge chamber (3), which are connected in communication. A detachable filter plate (4) is connected between the filter chamber (2) and the discharge chamber (3). A top plate (5) is installed on the side wall of the filter chamber (2). A side plate (6) is installed on the side of the detachable filter plate (4). A snap-fit ​​rod (7) is installed on the side plate (6). The fixing mechanism includes a snap-fit ​​tube (8) and an external rotating frame (9). The snap-fit ​​tube (8) can be inserted into the snap-fit ​​rod (7). A snap-fit ​​groove (10) is opened on the outer wall of the snap-fit ​​rod (7). A snap-fit ​​block (11) is slidably installed on the outer wall of the snap-fit ​​tube (8). A push block (12) is installed at one end of the snap-fit ​​block (11). An external rotating frame (9) is installed on the outer wall of the snap-fit ​​tube (8) with a limit rotation. A rotating push block (13) is installed on the external rotating frame (9).

2. A wellhead valve with a filtering function according to claim 1, characterized in that: The stabilizing rotation mechanism includes a fixed plate (14) and a longitudinal moving ring (15). Multiple sets of fixed plates (14) are installed on the bottom end face of the outer rotating frame (9). The longitudinal moving ring (15) is longitudinally slidably installed on the outer wall of the clamping tube (8). A fixed spring (16) is installed on the fixed plate (14). A positioning groove (17) is opened on the outer wall of the clamping tube (8). The fixed spring (16) can extend into the positioning groove (17) step by step. A positioning pin (18) is installed on one end face of the longitudinal moving ring (15).

3. A wellhead valve with a filtering function according to claim 1, characterized in that: The filter chamber (2) is connected to an upper pipe (19) on its side, which is connected to external equipment.

4. A wellhead valve with a filtering function according to claim 1, characterized in that: The side of the discharge chamber (3) is connected to a bottom pipe (20), which is connected to external equipment.

5. A wellhead valve with a filtering function according to claim 1, characterized in that: A bottom plate (21) is installed on the side of the discharge chamber (3), and the bottom plate (21) and the top plate (5) are connected by a sealing bolt.

6. A wellhead valve with a filtering function according to claim 1, characterized in that: A contact plate (22) is installed on the outer wall of the card tube (8), and the contact plate (22) is in contact with the top end face of the top plate (5).

7. A wellhead valve with a filtering function according to claim 1, characterized in that: A locking spring (23) is installed between the outer wall of the push block (12) and the locking tube (8).

8. A wellhead valve with a filtering function according to claim 1, characterized in that: The side of the discharge chamber (3) is connected to a backflush pipe (24), and the output of the backflush pipe (24) is arranged opposite to the detachable filter plate (4).

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