A hanger guard with a limiting function

Abstract

The utility model discloses a kind of hanger protection devices with limiting function, including suspension structure, auxiliary limiting component is connected with the engagement on suspension structure and is used to assist limiting to suspension structure, suspension structure both ends are communicated pressure relief structure and are in pressure relief processing, the suspension structure includes support protection seat, limit slot is opened in the upper end of support protection seat, suspension assembly is embedded in limit slot, first threaded hole and limiting hole are opened in the lateral wall of suspension assembly, limiting hole is located in the upper end of first threaded hole, third threaded hole is opened in the upper end of suspension assembly, second threaded hole is opened in the limit slot inside support protection seat, sliding hole is opened in the lateral wall of support protection seat, sliding hole is located in the upper side of second threaded hole, suspension assembly includes hanger body, slip tooth is opened in the upper end of hanger body, the hanger protection device with limiting function of this application can assist limiting to hanger body, to avoid bolt loosening, cause leakage.

Description

Technical Field

[0001] This utility model relates to the field of suspension technology, specifically to a suspension protection device with a limit function. Background Technology

[0002] Tubing hangers are critical devices used in oil and gas well production to suspend the weight of the tubing string inside the well and prevent it from falling. Their core function is to seal the annular space between the tubing and casing to isolate the formation pressure from the wellhead equipment. If the seal fails, it may lead to serious problems such as abnormal annular pressure, formation fluid leakage, or even a blowout. This is accompanied by a decrease in oil well production and the risk of shutting down the safety system. Existing hangers use bolts for limiting and fixing, thereby providing sealing and fall protection. However, bolts are prone to loosening after prolonged use, which can lead to leakage. Furthermore, if the internal pressure of the existing hanger is too high, the sealing element may be subjected to extreme stress, which may cause leakage or even fire, resulting in irreparable losses. Utility Model Content

[0003] The purpose of this invention is to provide a suspension protection device with a limit function, including a suspension structure, an auxiliary limit component engaged with the suspension structure for auxiliary limiting of the suspension structure, and pressure relief structures connected to both ends of the suspension structure for pressure relief.

[0004] The suspension structure includes a support and protection seat, a limiting groove is formed at the upper end of the support and protection seat, a suspension component is embedded in the limiting groove, a first threaded hole and a limiting hole are formed on the side wall of the suspension component, the limiting hole is located at the upper end of the first threaded hole, a third threaded hole is formed at the upper end of the suspension component, a second threaded hole is formed in the limiting groove inside the support and protection seat, and a sliding hole is formed on the side wall of the support and protection seat, the sliding hole is located above the second threaded hole.

[0005] The suspension assembly includes a suspension body, on which slip teeth are provided.

[0006] Preferably, the auxiliary limiting component includes a fixed rod, a sliding limiting ring fixed between the fixed rods, a connecting rod passing through the sliding limiting ring, a limiting block fixed at the end of the connecting rod near the support and protection seat, a handle fixed at the end of the connecting rod away from the support and protection seat, and the connecting rod passing through a strong spring located between the sliding limiting ring, the fixed rod, and the support and protection seat.

[0007] By adopting the above technical solution, the suspension body is assisted in being limited and fixed by setting an auxiliary limiting component.

[0008] Preferably, the pressure relief structure includes a pressure relief pipe, a rupture disc is installed at one end of the pressure relief pipe, a secondary sealing assembly is provided on the side of the rupture disc away from the support and protection seat, the secondary sealing assembly is installed inside the pressure relief pipe, and a pressure monitor and an electric valve are installed on the pressure relief pipe to the right of the secondary sealing assembly, with the electric valve located on the side of the pressure monitor.

[0009] Preferably, the secondary sealing assembly includes a fixed plate, on which a telescopic component is fixed, and on which a hemispherical metal sealing protrusion is fixed.

[0010] By adopting the above technical solution, a secondary sealing component is set up to seal the rupture disc after it breaks.

[0011] Preferably, the pressure relief structure is provided in two sets, and the two sets of pressure relief structures are symmetrically arranged about the central axis of the support and protection seat.

[0012] By adopting the above technical solution, the entire device is depressurized by setting up two sets of pressure relief structures.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the suspension protection device with limit function,

[0014] (1) This application can assist in limiting the suspension body, thereby preventing bolts from loosening and causing leakage;

[0015] (2) This application can release pressure when the pressure inside the suspension body is too high, thereby extending the service life of the entire device. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram showing the distribution of the pressure relief structure of this utility model on the support and protection base;

[0018] Figure 3 This is a schematic diagram of the auxiliary limiting component of this utility model;

[0019] Figure 4 This is a schematic diagram of the pressure relief structure of this utility model.

[0020] In the diagram: 1. Suspension structure; 11. Support and protection seat; 12. Limiting groove; 13. Suspension assembly; 131. Suspension body; 132. Locking tooth; 14. First threaded hole; 15. Second threaded hole; 16. Third threaded hole; 17. Limiting hole; 18. Sliding hole; 2. Auxiliary limiting assembly; 21. Fixing rod; 22. Sliding limiting ring; 23. Connecting rod; 24. Limiting block; 25. Strong spring; 26. Handle; 3. Pressure relief structure; 31. Pressure relief pipe; 32. Rupture disc; 33. Secondary sealing assembly; 331. Fixing plate; 332. Telescopic component; 333. Hemispherical metal sealing protrusion; 34. Pressure monitor; 35. Electric valve. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a suspension protection device with a limit function, such as... Figure 1 and Figure 2 As shown, the suspension structure 1 includes a support and protection seat 11. The upper end of the support and protection seat 11 has a limiting groove 12. The limiting groove 12 is embedded in the suspension component 13. The side wall of the suspension component 13 has a first threaded hole 14 and a limiting hole 17. The limiting hole 17 is located above the first threaded hole 14. The upper end of the suspension component 13 has a third threaded hole 16. The limiting groove 12 inside the support and protection seat 11 has a second threaded hole 15. The side wall of the support and protection seat 11 has a sliding hole 18. The sliding hole 18 is located above the second threaded hole 15. The suspension component 13 includes a hanger body 131. The hanger body 131 has a locking tooth 132.

[0023] The first threaded hole 14, the second threaded hole 15 and the third threaded hole 16 are each provided in four sets. The four sets of the first threaded hole 14, the second threaded hole 15 and the third threaded hole 16 are symmetrically arranged. The bolts in the first threaded hole 14, the second threaded hole 15 and the third threaded hole 16 and the limiting groove 12 are all equipped with O-ring rubber seals, metal seals and limiting gaskets to ensure the sealing effect.

[0024] Specifically, a rubber sealing ring is installed between the side of the suspension body 131 and the support protection seat 11 to achieve a sealing effect;

[0025] In the above scheme, the hanger body 131 is placed in the limiting groove 12 on the support and protection seat 11, the bolt is passed through the third threaded hole 16 and the second threaded hole 15, and the bolt is rotated to thread-fix the support and protection seat 11 and the hanger body 131. The bolt is passed through the first threaded hole 14 on the support and protection seat 11 and the hanger body 131 to thread-fix the side of the support and protection seat 11 and the hanger body 131. The clamping teeth 132 on the hanger body 131 are used for pipe installation.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, an auxiliary limiting component 2 is engaged with the suspension structure 1 and is used to assist in limiting the suspension structure 1. The auxiliary limiting component 2 includes a fixed rod 21, a sliding limiting ring 22 is fixed between the fixed rods 21, a connecting rod 23 passes through the sliding limiting ring 22, a limiting block 24 is fixed to the end of the connecting rod 23 near the support protection seat 11, a handle 26 is fixed to the end of the connecting rod 23 away from the support protection seat 11, and the connecting rod 23 passes through a strong spring 25. The strong spring 25 is located between the sliding limiting ring 22, the fixed rod 21 and the support protection seat 11.

[0027] Among them, the auxiliary limiting component 2 is provided in two sets, and the two sets of auxiliary limiting components 2 are installed at both ends of the support protection seat 11;

[0028] Furthermore, two sets of fixing rods 21 are provided, and the two sets of fixing rods 21 are symmetrically arranged about the sliding limit ring 22. One end of the fixing rod 21 is fixed to the support protection seat 11. The lower fixing rod 21, the sliding limit ring 22 and the connecting rod 23 are all provided with pin holes. The connecting rod 23 is provided with multiple sets of pin holes, which are evenly distributed on the connecting rod 23. After the limiting block 24 is limited in the limiting hole 17, the operator inserts the pin into the pin holes on the side fixing rod 21, the sliding limit ring 22 and the connecting rod 23 to perform limiting and fixing.

[0029] In the above scheme, pulling the handle 26 causes the connecting rod 23 to move in opposite directions. Finally, the limiting block 24 on the connecting rod 23 slides in the sliding hole 18 and moves out of the limiting hole 17, which facilitates the placement of the suspension body 131. Under the action of the elastic force of the strong spring 25, the limiting block 24 on the connecting rod 23 is limited in the limiting hole 17, thereby assisting in the fixation of the suspension body 131, thus avoiding bolt loosening, leakage, and unnecessary losses. The pin insertion side fixing rod 21, sliding limiting ring 22 and pin hole on the connecting rod 23 are machined to fix the position.

[0030] like Figure 1 , Figure 2 and Figure 4As shown, the suspension structure 1 is connected to the pressure relief structure 3 at both ends and is used for pressure relief. The pressure relief structure 3 includes a pressure relief pipe 31. A rupture disc 32 is installed at one end of the pressure relief pipe 31. A secondary sealing assembly 33 is provided on the side of the rupture disc 32 away from the support protection seat 11. The secondary sealing assembly 33 is installed inside the pressure relief pipe 31. A pressure monitor 34 and an electric valve 35 are installed on the pressure relief pipe 31 on the right side of the secondary sealing assembly 33. The electric valve 35 is located on the side of the pressure monitor 34. The secondary sealing assembly 33 includes a fixing plate 331. A telescopic component 332 is fixed on the fixing plate 331. A hemispherical metal sealing protrusion 333 is fixed on the telescopic component 332. The pressure relief structure 3 is provided in two sets. The two sets of pressure relief structures 3 are symmetrically arranged about the central axis of the support protection seat 11.

[0031] Among them, a rupture disc 32 is installed at the connection between the support and protection seat 11 and the pressure relief pipe 31, so as to play a sealing role under normal pressure. The rupture disc 32 is made of Incone I718.

[0032] Furthermore, two sets of secondary sealing components 33 are provided, and the two sets of secondary sealing components 33 are arranged symmetrically.

[0033] Both the pressure monitor 34 and the electric valve 35 are existing technologies.

[0034] Specifically, the telescopic component 332 ensures the telescopic rod and the strong spring 25;

[0035] In the above scheme, when there is overpressure inside the suspension body 131, the rupture disc 32 ruptures. Due to the pressure of the high-pressure fluid squeezing the hemispherical metal sealing protrusion 333, the fluid enters the pressure relief pipe 31. With the assistance of the pressure monitor 34, the internal pressure is monitored. If the pressure is too high, the electric valve 35 is opened with the assistance of the external control device to ensure normal pressure relief of the fluid and avoid excessive internal pressure and leakage. When the pressure tends to normal, with the assistance of the telescopic component 332 fixed on the fixed plate 331, the hemispherical metal sealing protrusion 333 performs a secondary seal on the opening of the pressure relief pipe 31, and the electric valve 35 is closed again. Multiple seals ensure the sealing effect.

[0036] Working principle: When using the suspension protection device with limit function, the external power supply is connected, and the suspension body 131 is protected by the suspension structure 1. With the assistance of the auxiliary limit component 2, the suspension body 131 is assisted in limiting the bolts to prevent loosening and leakage. With the setting of the pressure relief structure 3, the pressure inside the suspension body 131 is automatically relieved when the pressure is too high.

[0037] 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.

[0038] 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 suspension protection device with a limit function, comprising a suspension structure (1), an auxiliary limit component (2) being engaged with the suspension structure (1) for auxiliary limit of the suspension structure (1), and a pressure relief structure (3) connected to both ends of the suspension structure (1) for pressure relief, characterized in that, The suspension structure (1) includes a support and protection seat (11), a limiting groove (12) is provided at the upper end of the support and protection seat (11), a suspension component (13) is embedded in the limiting groove (12), a first threaded hole (14) and a limiting hole (17) are provided on the side wall of the suspension component (13), the limiting hole (17) is located at the upper end of the first threaded hole (14), a third threaded hole (16) is provided at the upper end of the suspension component (13), a second threaded hole (15) is provided in the limiting groove (12) inside the support and protection seat (11), and a sliding hole (18) is provided on the side wall of the support and protection seat (11), the sliding hole (18) is located above the second threaded hole (15); The suspension assembly (13) includes a suspension body (131) on which a locking tooth (132) is provided.

2. A suspension device with limit function according to claim 1, characterized in that: The auxiliary limiting component (2) includes a fixed rod (21), a sliding limiting ring (22) fixed between the fixed rods (21), a connecting rod (23) passing through the sliding limiting ring (22), a limiting block (24) fixed at one end of the connecting rod (23) near the support protection seat (11), a handle (26) fixed at the other end of the connecting rod (23) away from the support protection seat (11), and the connecting rod (23) passing through a strong spring (25), which is located between the sliding limiting ring (22), the fixed rod (21), and the support protection seat (11).

3. A suspension protection device with limit function according to claim 1, characterized in that: The pressure relief structure (3) includes a pressure relief pipe (31), a rupture disc (32) is installed at one end of the pressure relief pipe (31), a secondary sealing assembly (33) is provided on the side of the rupture disc (32) away from the support protection seat (11), the secondary sealing assembly (33) is installed inside the pressure relief pipe (31), a pressure monitor (34) and an electric valve (35) are installed on the pressure relief pipe (31) to the right of the secondary sealing assembly (33), and the electric valve (35) is located on the side of the pressure monitor (34).

4. A suspension protection device with limit function according to claim 3, characterized in that: The secondary sealing assembly (33) includes a fixing plate (331), a telescopic member (332) is fixed on the fixing plate (331), and a hemispherical metal sealing protrusion (333) is fixed on the telescopic member (332).

5. A suspension protection device with limit function according to claim 1, characterized in that: The pressure relief structure (3) is provided in two sets, and the two sets of pressure relief structures (3) are symmetrically arranged about the central axis of the support and protection seat (11).

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