Pipeline pressure relief tool

By designing a pipeline pressure relief fixture, which combines an adjustable wrench and a pressure relief protective cover, the risk of close-range operation by personnel during pipeline pressure relief work is solved, enabling rapid and safe pipeline pressure relief and reducing operational risks and costs.

CN223549919UActive Publication Date: 2025-11-14ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
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Patent Information

Application Number
CN202422807234.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-11-14
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

In existing technologies, pipeline pressure relief operations require close-range operation by personnel, which is highly risky. In particular, pipeline pressure maintenance operations are highly dangerous and may result in injuries.

Method used

Design a pipeline pressure relief tool, including an adjustable wrench, a pressure relief protective cover, a support rod, and an operating rod. Through the movable connection between the adjustable wrench and the pressure relief protective cover and the lever fulcrum design, remote safe pressure relief can be achieved to prevent high-pressure gas and oil from splashing.

Benefits of technology

It enables rapid and safe remote release of pipeline pressure, reduces operational risks, improves pressure relief efficiency and safety, and saves operation time and costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a pipeline pressure relief tool which comprises an adjustable wrench, a pressure relief protective cover body, a supporting rod and an operating rod. The size of the operation end of the adjustable wrench can be adjusted according to the size of the hexagonal joint of the pipeline; the tail end of the adjustable wrench extends into the pressure relief protective cover body and is detachably connected with the pressure relief protective cover body; the pressure relief protective cover body covers the tail end of the adjustable wrench and can move close to or far away from the operation end of the adjustable wrench at the tail end of the adjustable wrench; the operating rod is detachably mounted on the back of the pressure relief protective cover body; one end of the supporting rod is detachably and vertically supported on the operating rod, and the other end of the supporting rod can freely slide. The hydraulic pipeline pressure relief device can quickly and safely relieve pressure of high-pressure oil and gas remaining in some hydraulic pipelines, can remotely release pipeline pressure, reduces the risk of pipeline pressure release operation, greatly saves operation time and operation cost, and improves safety of operators.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline pressure relief equipment technology, and in particular to a pipeline pressure relief tool. Background Technology

[0002] In various production industries, pressurized pipelines are frequently involved, especially in the oil industry. Oil and gas extracted from wells are transported back to land via various oil and gas pipelines. To propel this transport, the pipelines require a certain pressure, which is also necessary for routine maintenance and testing. Currently, pipeline pressure release operations require close-range handling, posing a high risk; maintaining pipeline pressure is the most dangerous task, with reports of pipeline pressure-related injuries. Therefore, designing a simple, ultra-high-pressure, rapid, and safe pressure release device is crucial. Utility Model Content

[0003] The purpose of this utility model is to solve at least one technical problem in the background art and to provide a pipeline pressure relief tool.

[0004] To achieve the above objectives, this utility model provides a pipeline pressure relief tool, comprising: an adjustable wrench, a pressure relief protective cover, a support rod, and an operating rod;

[0005] The operating end of the adjustable wrench can be adjusted to fit the size of the hexagonal pipe fitting.

[0006] The tail end of the adjustable wrench extends into the pressure relief protective cover and is detachably connected to the pressure relief protective cover.

[0007] The pressure relief protective cover is installed over the tail end of the adjustable wrench and can move towards or away from the operating end of the adjustable wrench.

[0008] The operating lever is detachably mounted on the back of the pressure relief protective cover;

[0009] One end of the support rod is detachably and vertically supported on the operating rod, while the other end can slide freely.

[0010] According to one aspect of the present invention, the tail end of the adjustable wrench is provided with an external thread, and the bottom of the pressure relief protective cover is provided with a threaded hole. The pressure relief protective cover is connected to the tail end of the adjustable wrench through the threaded hole to achieve movement towards or away from the operating end of the adjustable wrench.

[0011] According to one aspect of the present invention, the operating lever includes a fixed lever and an extension lever;

[0012] One end of the fixing rod is installed on the mounting platform on the bottom outer wall of the pressure relief protective cover;

[0013] The other end of the fixing rod is provided with an external thread, and one end of the extension rod is provided with a threaded hole that is threaded to the other end of the fixing rod.

[0014] According to one aspect of the present invention, the side wall of the fixing rod is provided with a mounting hole;

[0015] One end of the support rod is detachably installed in the mounting hole;

[0016] The other end of the support rod is provided with a support, and a pulley is installed on the support.

[0017] According to one embodiment of this utility model, a pipeline pressure relief fixture includes: an adjustable wrench, a pressure relief protective cover, a support rod, and an operating rod; the operating end of the adjustable wrench can be adjusted according to the size of the hexagonal pipe fitting; the tail end of the adjustable wrench extends into the pressure relief protective cover and is detachably connected to it; the pressure relief protective cover covers the tail end of the adjustable wrench and can move towards or away from the operating end of the adjustable wrench; the operating rod is detachably mounted on the back of the pressure relief protective cover; one end of the support rod is detachably vertically supported on the operating rod, and the other end can slide freely. This setup allows operators to fix the operating end of the adjustable wrench to, for example, a hexagonal connector connecting two sections of oil and gas pipelines. Then, by moving the pressure relief shield over the adjustable wrench and supporting the operating rod, the operator can manipulate the wrench to tighten the hexagonal connector for pressure relief. During pressure relief, the pressure relief shield can contain the high-pressure gas and residual high-pressure oil ejected from the hexagonal connector, preventing gas and oil from splashing outwards and causing injury to operators or the site, effectively improving pressure relief efficiency and safety.

[0018] According to one embodiment of this utility model, the adjustable wrench has an external thread at its tail end, and the pressure relief protective cover has a threaded hole at its bottom. The pressure relief protective cover is connected to the tail end of the adjustable wrench via the threaded hole, allowing it to move closer to or further away from the operating end of the adjustable wrench. This design allows for a movable connection between the pressure relief protective cover and the adjustable wrench by screwing the pressure relief protective cover. This movable connection changes the positional relationship between the pressure relief protective cover and the operating end of the adjustable wrench. For example, when it is necessary to screw the hexagonal connector using the operating end of the adjustable wrench, the pressure relief protective cover is screwed to the position closest to the operating end to prevent the splashing of high-pressure oil and gas.

[0019] According to one embodiment of this utility model, the operating lever includes a fixed lever and an extension lever. One end of the fixed lever is installed on a mounting platform on the bottom outer wall of the pressure relief protective cover. The other end of the fixed lever has an external thread, and one end of the extension lever has a threaded hole for threading into the other end of the fixed lever. This configuration allows for connection and fixation between the fixed lever and the pressure relief protective cover. The fixed lever can be used when distance requirements are not high. The pressure relief protective cover is tightened by operating the fixed lever, and the hexagonal connector is activated by manipulating the adjustable wrench on the pressure relief protective cover to release pressure. When a longer distance is required for pressure relief, the extension lever is installed at the end of the fixed lever. Pressure relief is achieved by manipulating the adjustable wrench using both the extension lever and the fixed lever, improving safety and versatility.

[0020] According to one embodiment of this utility model, the side wall of the fixed rod is provided with a mounting hole; one end of the support rod is detachably screwed into the mounting hole, for example, by a thread; the other end of the support rod is provided with a support, on which a pulley is mounted. This arrangement allows the support rod to form a lever fulcrum on the fixed rod, and the bottom position of the lever fulcrum can be adjusted arbitrarily as needed. This leverage principle for pressure relief greatly saves manpower and makes the pressure relief process faster and more efficient.

[0021] According to the present invention, high-pressure oil and gas remaining in certain hydraulic pipelines can be quickly and safely depressurized, and pipeline pressure can be released remotely, reducing the risk of pipeline pressure release operations, greatly saving operation time, saving operation costs, and improving the safety of operators. Attached Figure Description

[0022] Figure 1 This diagram schematically illustrates an exploded view of a pipeline pressure relief device according to one embodiment of the present invention. Detailed Implementation

[0023] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the described embodiments are merely intended to enable those skilled in the art to better understand and thus implement the present invention, and are not intended to imply any limitation on the scope of the present invention.

[0024] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment".

[0025] Figure 1 This schematic diagram shows an exploded view of a pipeline pressure relief device according to one embodiment of the present invention. Figure 1As shown, in this embodiment, the pipeline pressure relief fixture includes: an adjustable wrench 1, a pressure relief protective cover 2, a support rod 3, and an operating rod 4;

[0026] The operating end of the adjustable wrench 1 can be adjusted to fit the size of the hexagonal pipe fitting.

[0027] The tail end of the adjustable wrench 1 extends into the pressure relief protective cover 2 and is detachably connected to the pressure relief protective cover 2;

[0028] The pressure relief protective cover 2 is installed over the tail end of the adjustable wrench 1, and can move towards or away from the operating end of the adjustable wrench 1.

[0029] The operating lever 4 is detachably mounted on the back of the pressure relief protective cover 2;

[0030] One end of the support rod 3 is detachably and vertically supported on the operating rod, while the other end can slide freely. This configuration allows the operator to fix the operating end of the adjustable wrench 1 to, for example, a hexagonal connector connecting two sections of oil and gas pipelines. Then, by moving the pressure relief shield 2 over the adjustable wrench 1, and with the support rod 3 supporting the operating rod 4, the operator can manipulate the adjustable wrench 1 to tighten the hexagonal connector for pressure relief. During the pressure relief process, the pressure relief shield 2 can contain the high-pressure gas and residual high-pressure oil ejected from the hexagonal connector, preventing gas and oil from splashing outwards and causing injury to the operator or the site, effectively improving pressure relief efficiency and safety.

[0031] Furthermore, such as Figure 1 As shown, in this embodiment, the adjustable wrench 1 has an external thread at its tail end, and the pressure relief cover 2 has a threaded hole (not shown in the figure) at its bottom. The pressure relief cover 2 is connected to the tail end of the adjustable wrench 1 via the threaded hole, allowing it to move closer to or further away from the operating end of the adjustable wrench 1. This configuration allows the pressure relief cover 2 to be movably connected to the adjustable wrench 1 by turning it. This movable connection changes the positional relationship between the pressure relief cover 2 and the operating end of the adjustable wrench 1. For example, when it is necessary to turn the hexagonal connector through the operating end of the adjustable wrench 1, the pressure relief cover 2 is turned to the position closest to the operating end to prevent the splashing of high-pressure oil and gas.

[0032] like Figure 1 As shown, in this embodiment, the pressure relief protective cover 2 is generally bell-shaped.

[0033] Furthermore, such as Figure 1 As shown, in this embodiment, the operating lever 4 includes a fixed lever 5 and an extension lever 6;

[0034] One end of the fixing rod 5 is installed on the mounting platform on the bottom outer wall of the pressure relief protective cover 2;

[0035] The other end of the fixing rod 5 is provided with an external thread, and one end of the extension rod 6 is provided with a threaded hole 7 that is threaded to the other end of the fixing rod 5. This arrangement allows the fixing rod 5 to be connected and fixed to the pressure relief protective cover 2. The fixing rod 5 can be used when the distance requirement is not high. The pressure relief protective cover 2 is tightened by operating the fixing rod 5, and the hexagonal connector is activated by moving the adjustable wrench 1 through the pressure relief protective cover 2 to release pressure. When a longer distance is required for pressure relief, the extension rod 6 is installed at the end of the fixing rod 5. The pressure relief operation is achieved by moving the adjustable wrench 1 through the extension rod and the fixing rod, improving safety and applicability to different scenarios.

[0036] Furthermore, such as Figure 1 As shown, in this embodiment, the side wall of the fixing rod 5 is provided with a mounting hole (not shown in the figure);

[0037] One end of the support rod 3 (the upper end in the figure) is detachably screwed into the mounting hole, for example, by means of a thread;

[0038] The other end of the support rod 3 is provided with a support 8, on which a pulley 9 is installed. This arrangement allows the support rod 3 to form a lever fulcrum on the fixed rod 5, and the bottom position of the lever fulcrum can be adjusted as needed. This leverage principle is used for pressure relief, which greatly saves manpower and makes the pressure relief process faster and more efficient.

[0039] According to the above-mentioned solution of this utility model, high-pressure oil and gas remaining in certain hydraulic pipelines can be quickly and safely depressurized, and pipeline pressure can be released remotely, reducing the risk of pipeline pressure release operations, greatly saving operation time, saving operation costs, and improving the safety of operators.

[0040] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A pipeline pressure relief device, characterized in that, include: Adjustable wrench (1), pressure relief protective cover (2), support rod (3) and operating lever (4); The operating end of the adjustable wrench (1) can be adjusted according to the size of the hexagonal pipe fitting; The tail end of the adjustable wrench (1) extends into the pressure relief protective cover (2) and is detachably connected to the pressure relief protective cover (2); The pressure relief protective cover (2) is installed over the tail end of the adjustable wrench (1) and can move towards or away from the operating end of the adjustable wrench (1) at the tail end. The operating lever (4) is detachably mounted on the back of the pressure relief protective cover (2); One end of the support rod (3) is detachably and vertically supported on the operating rod, while the other end can slide freely.

2. The pipeline pressure relief device according to claim 1, characterized in that, The adjustable wrench (1) has an external thread at its tail end, and the pressure relief protective cover (2) has a threaded hole at its bottom. The pressure relief protective cover (2) moves closer to or further away from the operating end of the adjustable wrench (1) through the threaded connection between the threaded hole and the tail end of the adjustable wrench (1).

3. The pipeline pressure relief device according to claim 1, characterized in that, The operating lever (4) includes a fixed lever (5) and an extension lever (6); One end of the fixing rod (5) is installed on the mounting platform on the bottom outer wall of the pressure relief protective cover (2); The other end of the fixing rod (5) is provided with an external thread, and one end of the extension rod (6) is provided with a screw hole (7) that is screwed to the other end of the fixing rod (5).

4. The pipeline pressure relief fixture according to claim 3, characterized in that, The side wall of the fixing rod (5) is provided with mounting holes; One end of the support rod (3) is detachably installed in the mounting hole; The other end of the support rod (3) is provided with a support (8), and a pulley (9) is installed on the support (8).