Low-temperature valve leakage treatment device

Abstract

The utility model relates to the technical field of low-temperature engineering, and discloses a low-temperature valve leakage treatment device which comprises a supporting bottom plate and a pressure gas pipeline, the top of the supporting bottom plate is fixedly connected with a low-temperature solution container, and a connecting pipe is fixed in the low-temperature solution container. Wherein a pushing mechanism is slidably connected to the interior of the other liquid leakage valve, a positioning mechanism is slidably connected to the exterior of the pressure gas pipeline, the pushing mechanism comprises a flange, connecting and fixing rings are fixed to the exteriors of the liquid leakage valves, and quick release assemblies are slidably connected to the interiors of the two connecting and fixing rings. According to the utility model, a large amount of pressure nitrogen enters through the pressure gas pipeline, when the pressure of the nitrogen is higher than the pressure of liquid nitrogen, the gas sealing effect is realized, and meanwhile, the leakage-proof gasket is replaced, so that the reliability of the system is enhanced, the maintenance operation is simplified, the leakage risk is reduced, the service life of equipment is prolonged, and the harm to a human body is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic engineering technology, and in particular to a cryogenic valve leakage treatment device. Background Technology

[0002] In modern society, cryogenic valves are being used more and more widely, mainly in equipment such as storage tanks and cold boxes in oxygen production workshops. A cryogenic valve is a valve specifically designed to work in a low-temperature environment.

[0003] The cryogenic valve leak handling device mainly consists of a cryogenic solution container, connecting pipes, and a leak valve. First, the cryogenic solution container stores the cryogenic solution used to handle valve leaks. When the system detects a valve leak, the cryogenic solution is transported to the leak through the connecting pipes. Then, the leak valve automatically opens, guiding the cryogenic solution directly to the leaking part of the valve to reduce the temperature at the leak point and thus alleviate the leak.

[0004] In existing technologies, some cryogenic valve leakage treatment devices operate in low-temperature environments for extended periods, leading to leakage caused by damage to the valve core and gaskets. Due to the low temperature of the medium liquid (-196℃), the insulation box is prone to freezing and cracking, causing frostbite to the human body. However, existing technologies cannot use pressurized gas to seal and replace the gaskets, which reduces the reliability of the system, the service life of the equipment, and increases the harm to the human body. In response to the above problems, a cryogenic valve leakage treatment device is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cryogenic valve leakage treatment device, which aims to improve the problem that some existing devices cannot replace gaskets of cryogenic valves online using pressurized gas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cryogenic valve leakage handling device includes a supporting base plate and a pressurized gas pipeline. A cryogenic solution container is fixedly connected to the top of the supporting base plate. A connecting pipe is fixedly connected inside the cryogenic solution container. One of the leaking valves is fixedly connected to the outside of the connecting pipe. A pushing mechanism is slidably connected inside the other leaking valve. A positioning mechanism is slidably connected to the outside of the pressurized gas pipeline. A quick-installation and disassembly mechanism is slidably connected to the outside of the pressurized gas pipeline. The pushing mechanism includes a flange. The flange is slidably connected to the outside of the other leaking valve. The inside of the pressurized gas pipeline is slidably connected to the outside of the flange. A connecting and fixing ring is fixed to the outside of the leaking valve. A quick-release assembly is slidably connected inside the two connecting and fixing rings.

[0008] As a further description of the above technical solution:

[0009] The quick-release assembly includes multiple bolts, the external parts of which are slidably connected to the inside of the two connecting and fixing rings. The external threads of the bolts are connected to nuts, and the internal parts of the leakage valve are slidably connected to leak-proof gaskets.

[0010] As a further description of the above technical solution:

[0011] The positioning mechanism includes two rotating columns. The rotating columns are rotatably connected to the outside of the pressurized gas pipeline. An L-shaped fixing block is rotatably connected to the outside of the rotating columns. A connecting support shell is fixedly connected to the top of the supporting base plate. A connecting support column is slidably connected inside the connecting support shell. A pushing frustum is fixedly connected to the outside of the connecting support column. A power component is fixedly connected inside the supporting base plate.

[0012] As a further description of the above technical solution:

[0013] The power assembly includes an electric telescopic column, the bottom of which is fixedly connected to the top of the support base plate, and the output end of which is fixedly connected to a connecting column, the top of which is fixedly connected to the bottom of the pushing truncated cone.

[0014] As a further description of the above technical solution:

[0015] A connecting support block is fixedly connected inside the connecting support shell, the bottom of the pushing frustum is slidably connected to the top of the connecting support block, and the top of the connecting column is slidably connected inside the connecting support block.

[0016] As a further description of the above technical solution:

[0017] The quick installation and disassembly mechanism includes a first connecting rotating ring, the inside of which is slidably connected to the outside of the pressurized gas pipeline and the flange, and a second connecting rotating ring is rotatably connected to the outside of the pressurized gas pipeline. A connecting block is rotatably connected to the inside of the first connecting rotating ring and the second connecting rotating ring.

[0018] As a further description of the above technical solution:

[0019] A first adhesive block is fixedly connected to the outside of the first connecting rotating ring, and a second adhesive block is fixedly connected to the outside of the second connecting rotating ring. The second adhesive block has multiple limiting holes inside, and a limiting post is fixedly connected inside the first adhesive block. The limiting post is slidably connected inside the limiting hole.

[0020] As a further description of the above technical solution:

[0021] The bottom of the pressurized gas pipeline is slidably connected to the top of the connecting support shell, and the bottom of the pressurized gas pipeline is slidably connected to the top of the connecting support column.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, a flange and a leak valve are connected, and the flange is also connected to a pressurized gas pipeline. A large amount of pressurized nitrogen enters through the pressurized gas pipeline. When the nitrogen pressure is higher than the liquid nitrogen pressure, the pressurized nitrogen pushes the liquid nitrogen back into the storage tank, preventing further outflow and achieving a gas seal. By rotating the gasket, the nut and bolt fall off, allowing the two connecting fixing rings to be opened. At the same time, the leak-proof gasket can be replaced. This not only enhances the reliability of the system but also simplifies maintenance operations, reduces the risk of leakage, extends the service life of the equipment, and reduces harm to the human body.

[0024] 2. In this utility model, the electric telescopic column is pushed upward, thereby pushing the connecting column to slide outside the connecting support block. At the same time, the external pushing frustum slides on the connecting support column, thereby pushing the L-shaped fixing block to rotate, which in turn drives the rotating column to rotate. Meanwhile, the rotating column and the connecting support column support and fix the pressure gas pipeline, which improves the speed of leakage handling and ensures the flexibility of the system.

[0025] 3. In this utility model, by pulling the first adhesive block, the first connecting rotating ring is driven to rotate inside the connecting block. At the same time, when connecting and fixing the flange and the pressurized gas pipeline, the first adhesive block is pulled to fix it outside the second adhesive block. Meanwhile, the first adhesive block has a limit post inside, which limits the movement inside the limit hole, thereby enabling the flange and the pressurized gas pipeline to be quickly installed and disassembled. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a cryogenic valve leakage treatment device proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the connection support shell of a cryogenic valve leakage treatment device proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of an electric telescopic column for a cryogenic valve leakage treatment device proposed in this utility model;

[0029] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0030] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0031] Figure 6 for Figure 2 Enlarged view of point C in the middle.

[0032] Legend:

[0033] 1. Support base plate; 2. Cryogenic solution container; 3. Connecting pipe; 4. Leakage valve; 5. Pressure gas pipeline; 6. Flange; 7. Connecting fixing ring; 8. Nut; 9. Bolt; 10. Leak-proof gasket; 11. Connecting support shell; 12. Electric telescopic column; 13. Connecting column; 14. Connecting support block; 15. Pushing frustum; 16. Connecting support column; 17. L-shaped fixing block; 18. Rotating column; 19. First connecting rotating ring; 20. Second connecting rotating ring; 21. Limiting hole; 22. First adhesive block; 23. Limiting column; 24. Second adhesive block; 25. Connecting block. Detailed Implementation

[0034] 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. Example

[0035] Reference Figure 1 , Figure 4 and Figure 6 This utility model provides an embodiment of a cryogenic valve leakage treatment device, including a supporting base plate 1 and a pressure gas pipeline 5. The supporting base plate 1 serves as the basic load-bearing structure of the entire cryogenic valve leakage treatment device, possessing good stability and load-bearing capacity. A cryogenic solution container 2 is fixedly connected to the top of the supporting base plate 1. The cryogenic solution container 2 is used to store the cryogenic solution required for treating cryogenic valve leakage, effectively reducing heat exchange between the internal cryogenic solution and the external environment, and maintaining the low-temperature state of the solution. A connecting pipe 3 is fixedly connected inside the cryogenic solution container 2, with one end communicating with the inside of the container and the other end used to connect to a leakage valve 4. The connecting pipe 3 ensures that it can withstand the corresponding pressure when transporting the cryogenic solution, while ensuring the smooth flow of the solution. One of the leakage valves 4 is fixedly connected to the outside of the connecting pipe 3. The leak-proof gasket 10 ensures the sealing of the connection and prevents the cryogenic solution from leaking. The other leakage valve 4 has a sliding push mechanism inside, which is welded to the valve body and its function is to provide a connection point for quick-release components.

[0036] The jacking mechanism includes a flange 6, the external dimensions of which match the internal sliding fit dimensions of the leaking valve 4, allowing it to slide smoothly inside the valve. The flange 6 is externally slidably connected to the interior of another leaking valve 4. The internal sliding connection of the pressurized gas pipeline 5 is externally connected to the flange 6. By introducing pressurized gas into the pressurized gas pipeline 5, the flange 6 is pushed to slide inside the valve, slowly increasing the nitrogen pressure. When the nitrogen pressure exceeds the liquid nitrogen pressure, the pressurized nitrogen returns the liquid nitrogen to the storage tank, preventing further outflow and achieving a gas seal. A connecting fixing ring 7 is fixed externally to the leaking valve 4. The internal sliding connection of the connecting ring 7 includes a quick-release assembly consisting of multiple bolts 9. The bolts 9 are externally slidably connected inside the two connecting rings 7. The bolts 9 are externally threaded with nuts 8, enabling quick assembly and disassembly between the two leaking valves 4. At this time, the operator can quickly remove the gasket and replace it with a new one. The internal sliding connection of the leaking valve 4 has a leak-proof gasket 10, which further enhances the sealing of the valve connection and prevents the leakage of low-temperature solution. The external sliding connection of the pressure gas pipeline 5 has a positioning mechanism and a quick-installation and disassembly mechanism. Example

[0037] Reference Figure 1 , Figure 3 and Figure 5The positioning mechanism includes two rotating columns 18. This mechanism ensures the stable operation of the pressurized gas pipeline 5 during device operation and guarantees accurate connection to other components. The rotating columns 18 are externally rotatably connected to the outside of the pressurized gas pipeline 5, and an L-shaped fixing block 17 is rotatably connected to the outside of the rotating columns 18. The rotating columns 18 adjust their angle as the L-shaped fixing block 17 rotates, thus better adapting to the installation and positioning requirements of the pressurized gas pipeline 5. A connecting support shell 11 is fixedly connected to the top of the support base plate 1. The connecting support shell 11 is generally made of metal and has a certain strength and rigidity, used to support and fix components such as the connecting support column 16. The connecting support column 16 is slidably connected inside the connecting support shell 11, and a pushing frustum 15 is fixedly connected to the outside of the connecting support column 16. The connecting support column 16 slides up and down within the connecting support shell 11, and the pushing frustum 15 is fixedly connected to its outside. The pushing frustum 15 is designed as a frustum shape, smaller at the top and larger at the bottom, which facilitates the even transmission of force when subjected to stress. A power assembly is fixedly connected inside the support base plate 1. The power assembly includes an electric... The electric telescopic column 12, when activated, transmits its telescopic movement at its output end to the pushing frustum 15 via the connecting column 13, thereby causing the connecting support column 16 to slide up and down within the connecting support shell 11. The bottom of the electric telescopic column 12 is fixedly connected to the top of the support base plate 1, and the output end of the electric telescopic column 12 is fixedly connected to the connecting column 13. The top of the connecting column 13 is fixedly connected to the bottom of the pushing frustum 15. The connecting support block 14 serves to support and guide, ensuring the stability and accuracy of the pushing frustum 15 and the connecting column 13 during movement. To ensure accuracy, when the truncated cone 15 moves up and down, the L-shaped fixing blocks 17 rotate inside the connecting support shell 11. When the truncated cone 15 is pushed upward, the angle of the two L-shaped fixing blocks 17 increases, and when it moves downward, the angle of the two L-shaped fixing blocks 17 decreases, thereby fixing the pressure gas pipeline 5. A connecting support block 14 is fixedly connected inside the connecting support shell 11. The bottom of the truncated cone 15 is slidably connected to the top of the connecting support block 14, and the top of the connecting column 13 is slidably connected to the inside of the connecting support block 14. Example

[0038] Reference Figure 2 and Figure 6The quick-installation and disassembly mechanism includes a first connecting rotating ring 19. This mechanism enables rapid connection and disassembly between the pressurized gas pipeline 5 and the flange 6, improving the maintenance and operational efficiency of the device. The first connecting rotating ring 19 is internally slidably connected to the outside of the pressurized gas pipeline 5 and the flange 6. A second connecting rotating ring 20 is rotatably connected to the outside of the pressurized gas pipeline 5. Connecting blocks 25 are rotatably connected internally to the first and second connecting rotating rings 19 and 20, respectively, via rotating connectors. This allows the two connecting rotating rings to rotate relative to each other while maintaining a certain connection relationship. The first connecting rotating ring 19 is externally fixedly connected to... A first adhesive block 22 is attached to the outside of the second connecting rotating ring 20, and a second adhesive block 24 is fixedly connected to the outside of the second connecting rotating ring 20. The second adhesive block 24 has multiple limiting holes 21 inside. A limiting post 23 is fixedly connected inside the first adhesive block 22. When it is necessary to fix the relative position of the first connecting rotating ring 19 and the second connecting rotating ring 20, the first adhesive block 22 is pulled to drive the limiting post 23 into the limiting hole 21. At the same time, the first adhesive block 22 is stuck to the surface of the second adhesive block 24 to achieve quick positioning and fixation. The limiting post 23 is slidably connected inside the limiting hole 21. The bottom of the pressure gas pipe 5 is slidably connected to the top of the connecting support shell 11, and the bottom of the pressure gas pipe 5 is slidably connected to the top of the connecting support post 16.

[0039] Working principle: First, the supporting base plate 1 serves as the basic load-bearing structure of the entire device, ensuring the stability and load-bearing capacity of the device. The cryogenic solution container 2 is fixed on top of the supporting base plate 1 and is used to store the cryogenic solution required to handle cryogenic valve leaks. It is connected to the leaking valve 4 through the connecting pipe 3. The connecting pipe 3 ensures that the cryogenic solution can withstand the corresponding pressure during transportation and maintain smooth flow. When a leak occurs, pressurized nitrogen is introduced into the flange 6 through the pressurized gas pipeline 5. As the nitrogen pressure gradually increases, when the nitrogen pressure exceeds the liquid nitrogen pressure, the pressurized nitrogen pushes the liquid nitrogen back into the storage tank, stopping the outflow of liquid nitrogen and achieving a gas seal. At this time, by rotating the nut 8 and bolt 9, the two connecting fixing rings 7 are opened, and the operator can quickly remove and replace the leak-proof gasket 10 to ensure the sealing of the valve connection, reduce the risk of leakage, and extend the service life of the equipment.

[0040] Secondly, during the operation of the device, the positioning mechanism, through the telescopic movement of the electric telescopic column 12, pushes the connecting column 13 and the pushing frustum 15 to slide on the connecting support block 14, thereby driving the L-shaped fixed block 17 and the rotating column 18 to rotate. At the same time, the pushing frustum 15 is fixed on the connecting support column 16. The connecting column 13 moves upward, and the connecting support column 16 also moves upward. The connecting support shell 11 supports its positioning mechanism, thereby supporting and fixing the pressure gas pipeline 5. This process ensures the stability and accuracy of the pressure gas pipeline 5 during operation.

[0041] Furthermore, the quick installation and disassembly mechanism, through the rotational connection of the first connecting rotating ring 19 and the second connecting rotating ring 20, and in conjunction with the engagement of the limiting post 23 and the limiting hole 21 of the first adhesive block 22 and the second adhesive block 24, enables the quick connection and disassembly between the pressurized gas pipeline 5 and the flange 6, thereby improving the maintenance and operation efficiency of the device. Through the gas sealing effect of the pressurized gas, the stable support of the positioning mechanism, and the efficient operation of the quick installation and disassembly mechanism, the rapid handling and maintenance of cryogenic valve leaks are achieved.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A cryogenic valve leakage treatment device, comprising a supporting base plate (1) and a pressurized gas pipeline (5), characterized in that: The top of the support base plate (1) is fixedly connected to a low-temperature solution container (2), the inside of the low-temperature solution container (2) is fixedly connected to a connecting pipe (3), the outside of the connecting pipe (3) is fixedly connected to one of the leakage valves (4), the inside of the other leakage valve (4) is slidably connected to a pushing mechanism, the outside of the pressure gas pipeline (5) is slidably connected to a positioning mechanism, and the outside of the pressure gas pipeline (5) is slidably connected to a quick installation and disassembly mechanism. The jacking mechanism includes a flange (6), the outside of which is slidably connected to the inside of another of the leaking valves (4), the inside of the pressure gas pipeline (5) is slidably connected to the outside of the flange (6), a connecting ring (7) is fixed to the outside of the leaking valve (4), and the inside of the two connecting rings (7) is slidably connected to a quick-release assembly.

2. The cryogenic valve leakage treatment device according to claim 1, characterized in that: The quick-release assembly includes multiple bolts (9), the external of which is slidably connected to the inside of two connecting fixing rings (7), the external of which is threaded with a nut (8), and the internal of which is slidably connected with a leak-proof gasket (10).

3. The cryogenic valve leakage treatment device according to claim 1, characterized in that: The positioning mechanism includes two rotating columns (18). The rotating columns (18) are rotatably connected to the outside of the pressure gas pipeline (5). An L-shaped fixing block (17) is rotatably connected to the outside of the rotating columns (18). A connecting support shell (11) is fixedly connected to the top of the supporting base plate (1). A connecting support column (16) is slidably connected inside the connecting support shell (11). A pushing frustum (15) is fixedly connected to the outside of the connecting support column (16). A power assembly is fixedly connected inside the supporting base plate (1).

4. The cryogenic valve leakage treatment device according to claim 3, characterized in that: The power assembly includes an electric telescopic column (12), the bottom of which is fixedly connected to the top of the support base plate (1), and the output end of which is fixedly connected to a connecting column (13), the top of which is fixedly connected to the bottom of the push platform (15).

5. The cryogenic valve leakage treatment device according to claim 4, characterized in that: The connecting support shell (11) is fixedly connected to the inside of the connecting support block (14), the bottom of the pushing frustum (15) is slidably connected to the top of the connecting support block (14), and the top of the connecting column (13) is slidably connected to the inside of the connecting support block (14).

6. The cryogenic valve leakage treatment device according to claim 1, characterized in that: The quick installation and disassembly mechanism includes a first connecting rotating ring (19), which is internally slidably connected to the outside of the pressure gas pipeline (5) and the flange (6). A second connecting rotating ring (20) is rotatably connected to the outside of the pressure gas pipeline (5). A connecting block (25) is rotatably connected to the inside of the first connecting rotating ring (19) and the second connecting rotating ring (20).

7. The cryogenic valve leakage treatment device according to claim 6, characterized in that: The first connecting rotating ring (19) is fixedly connected to the outside of a first adhesive block (22), and the second connecting rotating ring (20) is fixedly connected to the outside of a second adhesive block (24). The second adhesive block (24) has multiple limiting holes (21) inside. The first adhesive block (22) is fixedly connected to a limiting post (23), and the limiting post (23) is slidably connected inside the limiting hole (21).

8. A cryogenic valve leakage treatment device according to claim 3, characterized in that: The bottom of the pressure gas pipe (5) is slidably connected to the top of the connecting support shell (11), and the bottom of the pressure gas pipe (5) is slidably connected to the top of the connecting support column (16).

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