Petroleum drilling fracturing valve seat
By adopting the valve core limit structure and sealing structure in the petroleum drilling fracturing valve seat, the problems of unstable valve core movement and insufficient sealing properties in the traditional fracturing valve seat in high-pressure environment are solved, and more stable valve core movement and higher sealing effect are achieved, extending the service life of the equipment.
Patent Information
- Application Number
- CN202421665292.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Under the complex working conditions of high pressure, high temperature and high flow velocity, the valve core movement trajectory is unstable and easy to shake or stagnate, resulting in seal failure and fluid leakage, affecting the effect and safety of fracturing operations.
The valve core limit structure is adopted, including the third connecting flange, the second valve body, the threaded sleeve, the threaded rod and the turntable. Through the structural design of these components, the guiding limit of the valve core is achieved, the stability of the valve core movement trajectory is maintained, and the sealing property of the valve body is improved through the sealing structure, including the metal ring plate and the limit bolt.
By limiting the valve core, the stability of its movement trajectory is maintained, the shaking or stagnant is prevented, the stability of the valve core seal is improved, the service life of the device is extended, and the sealing effect and protective strength of the device are enhanced.
Smart Images
Figure CN222823220U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of oil drilling equipment, in particular to an oil drilling fracturing valve seat. Background Art
[0002] In oil drilling fracturing operations, the performance of the fracturing valve seat directly affects the effect and safety of the fracturing operation. The stability and sealing of the traditional fracturing valve seat face challenges under complex working conditions such as high pressure, high temperature, and high flow rate. Therefore, it is of great significance to improve the structure of the fracturing valve seat and improve its stability and sealing under complex working conditions.
[0003] The utility model with announcement number CN212273084U discloses a petroleum drilling fracturing valve seat. The utility model relates to the field of valve technology, including a valve body, a valve seat body is installed in the middle part of the interior of the valve body, a mounting seat is installed on the top of the valve body, and a valve stem is installed inside the mounting seat, one end of the valve stem extends to the interior of the valve body and a valve core is installed, and two supporting blocks are symmetrically installed on the outer wall of the valve seat body, a second through hole is opened inside the valve seat body, plug holes are opened on both sides of the top of the valve seat body, and a top cover is installed above the plug hole, and a first through hole is opened inside the top cover. The utility model solves the problem that there is an inclined gap between the valve core and the valve seat, and liquid is easy to flow into the gap, by arranging a top cover on the valve seat body, and solves the problem that the stability of the valve core in the valve seat is completely dependent on the support of the valve stem and is not stable enough by arranging a water flow hole inside the valve seat body.
[0004] However, the above patent still has the following problems: under high-pressure environment, the movement trajectory of the valve core in the valve seat is unstable and is easily affected by fluid impact and vibration, causing the valve core to shake or get stuck, affecting the normal opening and closing of the valve. The traditional sealing structure is easily affected by impact and wear, resulting in seal failure, which in turn causes fluid leakage, affecting the effect and safety of the fracturing operation. Under long-term, high-load working environment, the material and structure of the traditional fracturing valve seat are easily damaged, reducing the service life of the equipment.
[0005] In view of this, the present utility model is proposed. Utility Model Content
[0006] In order to solve the above-mentioned technical problem of the valve core position shaking and offsetting, the basic concept of the technical solution adopted by the utility model is:
[0007] A petroleum drilling fracturing valve seat, comprising:
[0008] A first valve body, the first valve body is arranged on the outer wall of the oil drilling pipe;
[0009] The valve core limiting structure includes a third connecting flange, and the third connecting flange is arranged on the top of the first valve body;
[0010] A sealing structure, the sealing structure comprising a first metal ring plate, the first metal ring plate being arranged on the top of the first valve body;
[0011] The bottom support structure includes a support base, and the support base is arranged at the bottom of the first valve body.
[0012] As a preferred embodiment of the utility model, the valve core limiting structure also includes a second valve body fixedly installed inside the third connecting flange, a hole is opened inside the second valve body, a threaded sleeve is fixedly installed in the hole, a threaded rod is rotatably installed inside the threaded sleeve, and a turntable is fixedly installed at one end of the threaded rod.
[0013] As a preferred embodiment of the utility model, the valve core limiting structure also includes two sets of lifting rods fixedly installed on the bottom of the second valve body, a valve core is provided at the bottom of the third connecting flange, a first rotating rod is rotatably installed inside the valve core, the other end of the threaded rod is fixedly connected to the top of the first rotating rod, and one end of the lifting rod is fixedly connected to the top of the valve core.
[0014] As a preferred embodiment of the utility model, the sealing structure also includes a first annular gasket arranged at the bottom of the first metal ring plate, a second annular gasket is arranged at the bottom of the first metal ring plate, eight groups of first thread grooves are opened inside the third connecting flange, and a first limiting bolt is spirally installed inside the first thread groove. The first connecting flange is fixedly installed on the top of the first valve body, and eight groups of third thread grooves are opened inside the first connecting flange. The first limiting bolt is sleeved and installed inside the first metal ring plate, the first annular gasket and the second annular gasket, and the first limiting bolt is spirally installed inside the third thread groove.
[0015] As a preferred embodiment of the utility model, the sealing structure also includes a second metal ring plate arranged at the bottom of the first valve body, two groups of first annular clamping grooves are opened inside the second metal ring plate, and a group of third annular gaskets and a group of fourth annular gaskets are respectively clamped and installed inside the two groups of first annular clamping grooves, a second connecting flange is fixedly installed on the bottom of the first valve body, eight groups of second threaded grooves are opened inside the second connecting flange, a fourth connecting flange is fixedly installed on the top of the support base, eight groups of second threaded grooves are opened inside the fourth connecting flange, eight groups of third limiting bolts are spirally installed inside the second connecting flange, the third limiting bolt is spirally installed inside the second threaded groove, and the third limiting bolt is sleeved and installed inside the second metal ring plate, the third annular gasket and the fourth annular gasket.
[0016] As a preferred embodiment of the utility model, the bottom support structure also includes two groups of first fixing plates fixedly installed on the outer wall of the support base, and each group of first fixing plates is spirally installed with two groups of second limiting bolts inside, the bottom of the fourth annular pad is tightly attached to the top of the fourth connecting flange, and the top of the third annular pad is tightly attached to the bottom of the second connecting flange.
[0017] As a preferred embodiment of the utility model, a second annular clamping groove is opened on the top of the first connecting flange, the first metal ring plate is clamped and installed inside the second annular clamping groove, a valve core seat is fixedly installed inside the first valve body, the valve core is clamped to the valve core seat, and a group of first input pipes and a group of first output pipes are fixedly installed on the outer wall of the first valve body, and the first output pipe is located above the first input pipe.
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] 1. To achieve the purpose of guiding and limiting the valve core, keep the valve core movement trajectory stable, prevent the valve core from shaking and shifting after a period of use, improve the stability of the valve core seal, improve the durability of the device, and extend the service life of the device.
[0020] 2. To achieve the purpose of reinforcing the seal of the device, improve the sealing effect of the device, improve the safety of the valve body, enhance the protection strength of the device, and facilitate the installation of the device by the installer.
[0021] 3. To achieve the purpose of bottom support and valve body use of the device, improve the stability of the device, improve the safety of the device, simplify the steps of using the valve body, reduce the work pressure of users, and optimize the use experience of the device.
[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In the attached picture:
[0024] Figure 1 It is a structural schematic diagram of the utility model;
[0025] Figure 2 This is a disassembled diagram of the utility model;
[0026] Figure 3 This is a schematic diagram of the third connecting flange structure of the utility model;
[0027] Figure 4 This is a schematic diagram of the valve core structure of the utility model;
[0028] Figure 5This is a disassembled view of the first metal ring plate, the first annular pad and the second annular pad of the utility model;
[0029] Figure 6 This is a schematic diagram of the structure of the second annular clamping groove of the utility model;
[0030] Figure 7 This is a disassembled diagram of the support base of the utility model;
[0031] Figure 8 It is a cross-sectional view of the utility model.
[0032] In the figure: 10, the first valve body; 11, the first connecting flange; 12, the second connecting flange; 13, the first input pipe; 14, the first output pipe; 15, the third connecting flange; 16, the second valve body; 17, the threaded sleeve; 18, the threaded rod; 19, the turntable; 20, the first thread groove; 21, the first limiting bolt; 22, the first rotating rod; 23, the valve core; 24, the lifting rod; 25, the first metal ring plate; 26, the first annular pad; 27, the second annular pad; 28, the supporting base; 29, the fourth connecting flange; 30, the second thread groove; 31, the first fixing plate; 32, the second limiting bolt; 33, the second metal ring plate; 34, the first annular clamping groove; 35, the third annular pad; 36, the fourth annular pad; 37, the valve core seat; 38, the second annular clamping groove; 39, the third thread groove; 40, the third limiting bolt. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0034] Embodiment 1: A petroleum drilling fracturing valve seat, specifically Figure 1 , Figure 5 and Figure 7 As shown, it includes a first valve body 10, which is arranged on the outer wall of the oil drilling pipe; a valve core limiting structure, which includes a third connecting flange 15, which is arranged on the top of the first valve body 10; a sealing structure, which includes a first metal ring plate 25, which is arranged on the top of the first valve body 10; and a bottom supporting structure, which includes a supporting base 28, which is arranged on the bottom of the first valve body 10. The position of the valve core is limited by the valve core limiting structure, and the sealing performance of the valve body is improved by the sealing structure.
[0035] Specific as Figure 1 , Figure 2 and Figure 3As shown, the valve core limiting structure also includes a second valve body 16 fixedly installed inside the third connecting flange 15. A hole is opened inside the second valve body 16, and a threaded sleeve 17 is fixedly installed in the hole. A threaded rod 18 is rotatably installed inside the threaded sleeve 17, and a rotating disk 19 is fixedly installed at one end of the threaded rod 18. The second valve body 16 is limited and fixed by the third connecting flange 15, and the rotating disk 19 is rotated to drive the threaded rod 18 to rotate inside the threaded sleeve 17.
[0036] Specific as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the valve core limiting structure also includes two sets of lifting rods 24 fixedly installed at the bottom of the second valve body 16, a valve core 23 is arranged at the bottom of the third connecting flange 15, a first rotating rod 22 is rotatably installed inside the valve core 23, the other end of the threaded rod 18 is fixedly connected to the top of the first rotating rod 22, and one end of the lifting rod 24 is fixedly connected to the top of the valve core 23. When the threaded rod 18 rotates, it drives the first rotating rod 22 to rotate inside the valve core 23, drives the lifting rod 24 to rise and fall, and adjusts the height of the valve core 23.
[0037] According to the above conclusions, through the structure of the third connecting flange 15, the second valve body 16, the threaded sleeve 17, the threaded rod 18, the turntable 19, the first turning rod 22, the valve core 23 and the lifting rod 24, the purpose of guiding and limiting the valve core is achieved, the movement trajectory of the valve core is kept stable, the position of the valve core is prevented from shaking and shifting after a period of use, the stability of the valve core seal is improved, the durability of the device is improved, and the service life of the device is extended.
[0038] Embodiment 2: Based on Embodiment 1, the specific Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the sealing structure also includes a first annular gasket 26 arranged at the bottom of the first metal ring plate 25, a second annular gasket 27 is arranged at the bottom of the first metal ring plate 25, eight groups of first thread grooves 20 are opened inside the third connecting flange 15, and the first limiting bolt 21 is spirally installed inside the first thread groove 20, and the first connecting flange 11 is fixedly installed on the top of the first valve body 10, and eight groups of third thread grooves 39 are opened inside the first connecting flange 11. The first limiting bolt 21 is sleeved and installed inside the first metal ring plate 25, the first annular gasket 26 and the second annular gasket 27, and the first limiting bolt 21 is spirally installed inside the third thread groove 39. Place the first annular gasket 26 and the second annular gasket 27 at the bottom of the third connecting flange 15 and the top of the first connecting flange 11 respectively, place the first metal ring plate 25 between the first annular gasket 26 and the second annular gasket 27, clamp and install the first metal ring plate 25 inside the third thread groove 398, rotate the first limiting bolt 21, and screw the first limiting bolt 21 into the first thread groove 20 and the third thread groove 39 in sequence.
[0039] Specific as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the sealing structure also includes a second metal ring plate 33 arranged at the bottom of the first valve body 10, two groups of first annular clamping grooves 34 are opened inside the second metal ring plate 33, and a group of third annular gaskets 35 and a group of fourth annular gaskets 36 are respectively clamped and installed inside the two groups of first annular clamping grooves 34, a second connecting flange 12 is fixedly installed at the bottom of the first valve body 10, eight groups of second thread grooves 30 are opened inside the second connecting flange 12, a fourth connecting flange 29 is fixedly installed on the top of the support base 28, eight groups of second thread grooves 30 are opened inside the fourth connecting flange 29, eight groups of third limiting bolts 40 are spirally installed inside the second connecting flange 12, the third limiting bolts 40 are spirally installed inside the second thread groove 30, and the third limiting bolts 40 are sleeved and installed inside the second metal ring plate 33, the third annular gasket 35 and the fourth annular gasket 36. Place the fourth annular gasket 36 on the top of the fourth connecting flange 29, place the third annular gasket 35 on the bottom of the second connecting flange 12, place the second metal ring plate 33 between the third annular gasket 35 and the fourth annular gasket 36, and make the third annular gasket 35 and the fourth annular gasket 36 be clamped and installed inside the first annular clamping groove 34, rotate the third limiting bolt 40, and spirally install the third limiting bolt 40 inside the second thread groove 30.
[0040] According to the above conclusions, through the structure of the first thread groove 20, the first limiting bolt 21, the first metal ring plate 25, the first annular gasket 26, the second annular gasket 27, the support base 28, the fourth connecting flange 29, the second thread groove 30, the first fixing plate 31, the second limiting bolt 32, the second metal ring plate 33, the first annular clamping groove 34, the third annular gasket 35, the fourth annular gasket 36, the valve core seat 37, the second annular clamping groove 38, the third thread groove 39 and the third limiting bolt 40, the purpose of reinforcing the sealing of the device is achieved, the sealing effect of the device is improved, the safety of the valve body is improved, the protection strength of the device is enhanced, and it is convenient for the installer to install the device.
[0041] Embodiment 3: Based on Embodiment 1 and Embodiment 2, the specific Figure 6 and Figure 7 As shown, the bottom support structure also includes two groups of first fixing plates 31 fixedly mounted on the outer wall of the support base 28, and two groups of second limiting bolts 32 are screwed inside each group of first fixing plates 31, the bottom of the fourth annular pad 36 is in close contact with the top of the fourth connecting flange 29, and the top of the third annular pad 35 is in close contact with the bottom of the second connecting flange 12. The second limiting bolt 32 is rotated and screwed inside the first fixing plate 31, and the first fixing plate 31 is fixedly mounted on the outer wall of the oil drilling pipeline.
[0042] Specific as Figure 1 , Figure 3 and Figure 8 As shown, a second annular clamping groove 38 is provided on the top of the first connecting flange 11, the first metal ring plate 25 is clamped and installed inside the second annular clamping groove 38, a valve core seat 37 is fixedly installed inside the first valve body 10, the valve core 23 is clamped with the valve core seat 37, and a group of first input pipes 13 and a group of first output pipes 14 are respectively fixedly installed on the outer wall of the first valve body 10, and the first output pipe 14 is located above the first input pipe 13. The oil is transported through the first input pipe 13 and the first output pipe 14, and the valve body is used by the valve core 23 being clamped and installed inside the valve core seat 37.
[0043] To sum up, through the structure of the first valve body 10, the first connecting flange 11, the second connecting flange 12, the first input pipe 13, the first output pipe 14, the support base 28, the fourth connecting flange 29, the first fixing plate 31, the second limiting bolt 32, the fourth annular gasket 36, the valve core seat 37 and the second annular clamping groove 38, the purpose of bottom support of the device and use of the valve body is achieved, the stability of the use of the device is improved, the safety of the device is improved, the use steps of the valve body are simplified, the work pressure of the user is reduced, and the use experience of the device is optimized.
[0044] Working principle: The valve core limiting structure is mainly composed of a third connecting flange 15, a second valve body 16, a threaded sleeve 17, a threaded rod 18 and a turntable 19. When the position of the valve core 23 needs to be adjusted, the turntable 19 is rotated to drive the threaded rod 18 to rotate in the threaded sleeve 17. The rotation of the threaded rod 18 will drive the first turn rod 22 to rotate inside the valve core 23, and then the height of the valve core 23 is adjusted by the lifting and lowering of the lifting rod 24, so that the position adjustment of the valve core 23 is more accurate and convenient. The sealing structure includes a first metal ring plate 25, a first annular gasket 26, a second annular gasket 27, a second metal ring plate 33, a third annular gasket 35 and a fourth annular gasket 36. The first metal ring plate 25 cooperates with the first annular gasket 26 and the second annular gasket 27, and is screwed on the first connecting flange 11 and the first limiting bolt 21. A top sealing structure is formed between the third connecting flange 15, and the second metal ring plate 33 cooperates with the third annular gasket 35 and the fourth annular gasket 36, and is spirally installed between the second connecting flange 12 and the fourth connecting flange 29 through the third limiting bolt 40 to form a bottom sealing structure. The support base 28 is connected to the valve body through the fourth connecting flange 29, and is fixed to the outer wall of the oil drilling pipe through the first fixing plate 31 and the second limiting bolt 32, providing stable support for the device and ensuring the sealing and stability of the valve body. The valve core 23 is clamped with the valve core seat 37 inside the first valve body 10 to ensure the stability and sealing of the valve core during the opening and closing process. The oil is input into the valve body through the first input pipe 13, and after being controlled by the valve core 23, it is output through the first output pipe 14, making the transportation of oil more efficient and safe.
[0045] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A petroleum drilling fracturing valve seat, characterized in that: include: A first valve body (10), the first valve body (10) being arranged on the outer wall of the oil drilling pipe; A valve core limiting structure, the valve core limiting structure comprising a third connecting flange (15), the third connecting flange (15) being arranged on the top of the first valve body (10); A sealing structure, the sealing structure comprising a first metal ring plate (25), the first metal ring plate (25) being arranged on the top of the first valve body (10); The bottom support structure comprises a support base (28), and the support base (28) is arranged at the bottom of the first valve body (10).
2. The oil drilling fracturing valve seat according to claim 1, characterized in that: The valve core limiting structure also includes a second valve body (16) fixedly mounted inside the third connecting flange (15); a hole is provided inside the second valve body (16); a threaded sleeve (17) is fixedly mounted inside the hole; a threaded rod (18) is rotatably mounted inside the threaded sleeve (17); a rotating disk (19) is fixedly mounted at one end of the threaded rod (18).
3. The oil drilling fracturing valve seat according to claim 1, characterized in that: The valve core limiting structure also includes two sets of lifting rods (24) fixedly mounted on the bottom of the second valve body (16); a valve core (23) is arranged at the bottom of the third connecting flange (15); a first rotating rod (22) is rotatably mounted inside the valve core (23); the other end of the threaded rod (18) is fixedly connected to the top of the first rotating rod (22); and one end of the lifting rod (24) is fixedly connected to the top of the valve core (23).
4. The oil drilling fracturing valve seat according to claim 1, characterized in that: The sealing structure further comprises a first annular gasket (26) arranged at the bottom of the first metal ring plate (25), a second annular gasket (27) being arranged at the bottom of the first metal ring plate (25), eight groups of first thread grooves (20) being provided inside the third connecting flange (15), a first limiting bolt (21) being screwedly mounted inside the first thread groove (20), a first connecting flange (11) being fixedly mounted on the top of the first valve body (10), eight groups of third thread grooves (39) being provided inside the first connecting flange (11), a first limiting bolt (21) being sleeved and mounted inside the first metal ring plate (25), the first annular gasket (26) and the second annular gasket (27), and the first limiting bolt (21) being screwedly mounted inside the third thread groove (39).
5. The oil drilling fracturing valve seat according to claim 1, characterized in that: The sealing structure further comprises a second metal ring plate (33) arranged at the bottom of the first valve body (10); two groups of first annular clamping grooves (34) are provided inside the second metal ring plate (33); a group of third annular gaskets (35) and a group of fourth annular gaskets (36) are respectively clamped and installed inside the two groups of first annular clamping grooves (34); a second connecting flange (12) is fixedly installed at the bottom of the first valve body (10); eight groups of second thread grooves (30) are provided inside the second connecting flange (12); a fourth connecting flange (29) is fixedly installed at the top of the support base (28); eight groups of second thread grooves (30) are provided inside the fourth connecting flange (29); eight groups of third limiting bolts (40) are spirally installed inside the second connecting flange (12); the third limiting bolts (40) are spirally installed inside the second thread grooves (30); the third limiting bolts (40) are sleeved and installed inside the second metal ring plate (33), the third annular gasket (35) and the fourth annular gasket (36).
6. The oil drilling fracturing valve seat according to claim 1, characterized in that: The bottom support structure also includes two groups of first fixing plates (31) fixedly mounted on the outer wall of the support base (28), two groups of second limiting bolts (32) being spirally mounted inside each group of first fixing plates (31), the bottom of the fourth annular gasket (36) being in close contact with the top of the fourth connecting flange (29), and the top of the third annular gasket (35) being in close contact with the bottom of the second connecting flange (12).
7. The oil drilling fracturing valve seat according to claim 4, characterized in that: A second annular clamping groove (38) is formed on the top of the first connecting flange (11), the first metal ring plate (25) is clamped and installed inside the second annular clamping groove (38), a valve core seat (37) is fixedly installed inside the first valve body (10), the valve core (23) is clamped with the valve core seat (37), and a group of first input pipes (13) and a group of first output pipes (14) are fixedly installed on the outer wall of the first valve body (10), and the first output pipes (14) are located above the first input pipes (13).