A pump type wellhead valve convenient for quick installation and dismounting

Abstract

The utility model discloses a pump type wellhead valve convenient to quick installation and disassembly, including pump type wellhead valve structure, install auxiliary limit structure on pump type wellhead valve structure, pump type wellhead valve structure includes first valve body, and first valve body passes through dismounting assembly and second valve body dismounting installation, and the valve seat is fixed in first valve body, and the sealing ring is placed between valve seat and second valve body, and the sealing assembly is provided with left side of valve seat, and sealing assembly installs in first valve body, and the dismounting assembly includes first connecting piece, and the second connecting piece is installed to first connecting piece inner thread dismounting, and the second connecting piece is fixed in second valve body left end outer wall, and the connecting block is installed on mounting panel, and the telescopic rod is fixed on connecting block, and the telescopic rod is passed in spring, and the plugging ball is installed to telescopic rod telescopic end, and the spring is located in rubber protective sleeve, and rubber protective sleeve is fixed between mounting panel and plugging ball, and this pump type wellhead valve convenient to quick installation and disassembly can dismantle pump type wellhead valve, and is convenient for later maintenance.

Description

Technical Field

[0001] This utility model relates to the field of pump-type wellhead valve technology, specifically a pump-type wellhead valve that is easy to install and disassemble quickly. Background Technology

[0002] Pump-type wellhead valves are one-way valves that connect oilfield wellhead equipment to oil pipelines to prevent backflow of oil extracted from the well. Existing pump-type wellhead valves are integrated units, which makes maintenance more troublesome and usually requires replacement of the entire unit, increasing operating costs. Furthermore, most pump-type wellhead valves can only be installed vertically. When installed at an angle, the steel ball cannot return to its original position on the valve seat, causing backflow of oil and resulting in unnecessary losses. Utility Model Content

[0003] The purpose of this invention is to provide a pump-type wellhead valve that is easy to install and disassemble quickly, including a pump-type wellhead valve structure, on which an auxiliary limiting structure is installed.

[0004] The pump-type wellhead valve structure includes a first valve body, which is disassembled and installed with a second valve body via a disassembly assembly. A valve seat is fixed inside the first valve body, and a sealing ring is placed between the valve seat and the second valve body. A sealing assembly is provided on the left side of the valve seat, and the sealing assembly is installed inside the first valve body.

[0005] The assembly includes a first connector, a second connector that is disassembled and installed on the first connector via internal threads, and the second connector is fixed to the outer wall of the left end of the second valve body.

[0006] The sealing assembly includes a mounting plate, a connecting block mounted on the mounting plate, a telescopic rod fixed on the connecting block, the telescopic rod passing through a spring, a sealing ball mounted on the telescopic end of the telescopic rod, the spring located inside a rubber protective sleeve, and the rubber protective sleeve fixed between the mounting plate and the sealing ball.

[0007] Preferably, the auxiliary limiting structure includes a first annular plate, which is mounted on the first valve body. A second arc-shaped plate is provided on the right side of the first annular plate, which is mounted on the second valve body. Threaded holes are provided on both the first annular plate and the second arc-shaped plate, and an anti-movement component passes through the threaded holes.

[0008] Preferably, the anti-movement component includes a lead screw with a nut passing through it.

[0009] By adopting the above technical solution, the first valve body and the second valve body are limited by setting an anti-movement component.

[0010] Preferably, the anti-movement component is provided in three sets, and the three sets of anti-movement components are distributed at equal distances on the first annular plate and the second arc-shaped plate.

[0011] By adopting the above technical solution, the limiting effect is ensured by setting anti-movement components.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this pump-type wellhead valve is easy to install and disassemble quickly.

[0013] (1) This application enables the disassembly of the pump-type wellhead valve, which facilitates later maintenance and saves costs;

[0014] (2) The pump-type wellhead valve of this application can be installed and used at an angle, which increases the practicality of the pump-type wellhead valve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the distribution of the auxiliary limiting structure of this utility model on the pump-type wellhead valve structure;

[0016] Figure 2 This is a schematic diagram of the distribution structure of the second valve body on the first valve body according to this utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary limiting structure of this utility model.

[0018] In the diagram: 1. Pump-type wellhead valve structure; 11. First valve body; 12. Second valve body; 13. Assembly / disassembly assembly; 131. First connecting piece; 132. Second connecting piece; 14. Valve seat; 15. Sealing ring; 16. Sealing assembly; 161. Mounting plate; 162. Connecting block; 163. Telescopic rod; 164. Sealing ball; 165. Spring; 166. Rubber protective sleeve; 2. Auxiliary limiting structure; 21. First annular plate; 22. Second arc-shaped plate; 23. Threaded hole; 24. Anti-movement assembly; 241. Lead screw; 242. Nut. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a pump-type wellhead valve that is easy to install and disassemble quickly. Figure 1 , Figure 2 and Figure 3As shown, the pump-type wellhead valve structure 1 includes a first valve body 11. The first valve body 11 is disassembled and installed with a second valve body 12 via a disassembly and assembly assembly 13. The disassembly and assembly assembly 13 includes a first connector 131. A second connector 132 is disassembled and installed on the first connector 131 via an internal thread. The second connector 132 is fixed to the outer wall of the left end of the second valve body 12.

[0021] The first valve body 11 and the second valve body 12 are both threaded to oil pipes to ensure normal oil delivery.

[0022] Furthermore, the first connector 131 includes a connecting pipe with an internal thread, and the second connector 132 has an external thread, which is fixed to the outer wall of the left end of the second valve body 12.

[0023] In the above scheme, the sealing ring 15 is placed on the right side of the valve seat 14, and the second valve body 12 passes through the first connector 131 on the first valve body 11. The second valve body 12 is rotated and limited to the first connector 131 on the first valve body 11 by the second connector 132, which facilitates quick disassembly and assembly of the first valve body 11 and the second valve body 12, and facilitates subsequent internal maintenance. The setting of the sealing ring 15 ensures the sealing effect.

[0024] like Figure 3 As shown, a valve seat 14 is fixed inside the first valve body 11. A sealing ring 15 is placed between the valve seat 14 and the second valve body 12. A sealing assembly 16 is provided on the left side of the valve seat 14. The sealing assembly 16 is installed inside the first valve body 11. The sealing assembly 16 includes a mounting plate 161. A connecting block 162 is installed on the mounting plate 161. A telescopic rod 163 is fixed on the connecting block 162. The telescopic rod 163 passes through the spring 165. A sealing ball 164 is installed at the telescopic end of the telescopic rod 163. The spring 165 is located inside the rubber protective sleeve 166. The rubber protective sleeve 166 is fixed between the mounting plate 161 and the sealing ball 164.

[0025] The mounting plate 161 has multiple sets of holes to facilitate rapid oil flow.

[0026] Mounting plate 161 and connecting block 162 can be disassembled and installed for subsequent maintenance of components;

[0027] Furthermore, the sealing ball 164 seals the oil inlet on the valve seat 14. The sealing ball 164 is equipped with three sets of guide strips. One end of the guide strip is installed on the slider in the slide groove. The slide groove is opened on the first valve body 11. The slide groove is sealed by the bellows cover to prevent impurities from entering and thus ensure the normal use of the sealing ball 164.

[0028] Specifically, the sealing ring 15 is an O-ring;

[0029] In the above scheme, the oil pushes the sealing ball 164 through the second valve body 12. When the pressure is too high, the slide bar and slider on the sealing ball 164 slide in the slide groove, and the spring 165, the rubber protective sleeve 166 and the telescopic rod 163 extend and retract, thereby separating the sealing ball 164 from the valve seat 14, and the oil enters the first valve body 11. Finally, the oil flows out through the hole on the mounting plate 161. After the entire operation is completed, with the assistance of the elastic force of the spring 165, the sealing ball 164 moves to the original position and seals the valve seat 14.

[0030] like Figure 1 and Figure 3 As shown, an auxiliary limiting structure 2 is installed on the pump-type wellhead valve structure 1. The auxiliary limiting structure 2 includes a first annular plate 21, which is installed on the first valve body 11. A second arc-shaped plate 22 is provided on the right side of the first annular plate 21, which is installed on the second valve body 12. Threaded holes 23 are provided on both the first annular plate 21 and the second arc-shaped plate 22. An anti-movement component 24 passes through the threaded hole 23. The anti-movement component 24 includes a lead screw 241, on which a nut 242 passes. Three sets of anti-movement components 24 are provided, and the three sets of anti-movement components 24 are evenly distributed on the first annular plate 21 and the second arc-shaped plate 22.

[0031] Among them, three sets of threaded holes 23 are provided, and the three sets of threaded holes 23 are equally distributed on the first annular plate 21 and the second arc plate 22;

[0032] In the above scheme, the lead screw 241 is passed through the threaded hole 23 on the first annular plate 21 and the second arc plate 22, and the nut 242 on the lead screw 241 is rotated to limit and fix it, thereby providing auxiliary limit for the first valve body 11 and the second valve body 12, ensuring the normal use of the entire pump-type wellhead valve.

[0033] Working principle: When using this pump-type wellhead valve which is easy to install and disassemble quickly, the external power supply is connected. The pump-type wellhead valve structure 1 ensures quick installation and disassembly of the pump-type wellhead valve. For later maintenance, the auxiliary limit structure 2 provides auxiliary limit for the first valve body 11 and the second valve body 12.

[0034] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pump-type wellhead valve that is easy to install and disassemble quickly, comprising a pump-type wellhead valve structure (1), wherein an auxiliary limiting structure (2) is installed on the pump-type wellhead valve structure (1), characterized in that, The pump-type wellhead valve structure (1) includes a first valve body (11), which is disassembled and installed with a second valve body (12) via a disassembly assembly (13). A valve seat (14) is fixed inside the first valve body (11), and a sealing ring (15) is placed between the valve seat (14) and the second valve body (12). A sealing assembly (16) is provided on the left side of the valve seat (14), and the sealing assembly (16) is installed inside the first valve body (11). The disassembly and assembly assembly (13) includes a first connector (131), and a second connector (132) is installed on the internal thread of the first connector (131). The second connector (132) is fixed to the outer wall of the left end of the second valve body (12). The sealing assembly (16) includes a mounting plate (161), a connecting block (162) is mounted on the mounting plate (161), a telescopic rod (163) is fixed on the connecting block (162), the telescopic rod (163) passes through a spring (165), a sealing ball (164) is mounted on the telescopic end of the telescopic rod (163), the spring (165) is located inside a rubber protective sleeve (166), and the rubber protective sleeve (166) is fixed between the mounting plate (161) and the sealing ball (164).

2. The pump-type wellhead valve for easy and quick installation and disassembly according to claim 1, characterized in that: The auxiliary limiting structure (2) includes a first annular plate (21), which is mounted on the first valve body (11). A second arc-shaped plate (22) is provided on the right side of the first annular plate (21), which is mounted on the second valve body (12). Threaded holes (23) are provided on both the first annular plate (21) and the second arc-shaped plate (22), and an anti-movement component (24) passes through the threaded holes (23).

3. A pump-type wellhead valve for easy and quick installation and disassembly according to claim 2, characterized in that: The anti-movement component (24) includes a lead screw (241) with a nut (242) passing through it.

4. A pump-type wellhead valve for easy and quick installation and disassembly according to claim 3, characterized in that: The anti-movement component (24) is provided in three sets, and the three sets of anti-movement components (24) are distributed at equal distances on the first annular plate (21) and the second arc-shaped plate (22).

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