A pressure vessel lining leakage pressure plugging device

Abstract

The utility model provides a kind of pressure vessel lining leakage pressure leak stoppage device. The pressure vessel lining leakage pressure leak stoppage device includes: support chassis;Pressure vessel, the pressure vessel is installed in the top of support chassis, the outer surface of the pressure vessel is equipped with pipe cap, the top of the pipe cap is equipped with first docking pipe, the top of the first docking pipe is equipped with first tee joint by first connector, one opening of the first tee joint is equipped with first valve, another opening of the first tee joint is equipped with second valve, the bottom of the pipe cap is equipped with second docking pipe, the bottom of the second docking pipe is equipped with second tee joint by second connector. The pressure vessel lining leakage pressure leak stoppage device provided by the utility model can carry out leak stoppage under normal pressure of pressure vessel lining, so system shutdown is not needed, which is conducive to the continuity of production line.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure - retaining plugging for the inner lining of pressure vessels, and particularly relates to a pressure - retaining plugging device for the leakage of the inner lining of a pressure vessel. Background Technique

[0002] Pressure vessels are commonly used feeding equipment in coal chemical industry, environmental protection devices, oil refining, and synthetic ammonia system devices. As the operation time goes by, their pressure vessels may leak due to various reasons, such as corrosion. When a pressure vessel leaks, if it is not repaired in time, it will directly affect the stable production of the device. At the same time, due to the leakage, it not only causes material loss, but also poses a threat to safety production and brings certain pollution to the environment.

[0003] When the inner lining of a pressure vessel leaks, normally, generally, parking, pressure relief, and replacement treatment are adopted. However, due to continuous production operation, parking, pressure relief, and replacement treatment cause great waste. In addition, sometimes the inlet and outlet valves of the system cannot be completely closed, and the pressure cannot be relieved.

[0004] The traditional treatment method is as follows: the system is shut down, its inlet and outlet valves are closed, after pressure relief, a blind plate is added to isolate the leaking pipeline. After nitrogen replacement, it is necessary to check whether the inner surface of the steel part meets the construction requirements of the plate lining. The surface of the lining side is derusted by sandblasting, the surface of the lining side, the lining area, and the bonding surface of the PTFE plate are cleaned with a cleaner, and the pre - cut PTFE plates are pasted onto the workpiece one by one, locally heated, and then the air inside the PTFE plates is completely squeezed out with special tools. During bonding, it should be pressed firmly to fully expel the air between the two to ensure their close combination. Visually check that it is flat without bulging. Finally, use a 25,0KV electric spark to measure whether the plate lining is penetrated. If it is not penetrated or there is no alarm, it is qualified. This treatment method will inevitably affect the continuity of normal production and cause unnecessary waste, and at the same time bring unstable factors to production.

[0005] Therefore, it is necessary to provide a pressure - retaining plugging device for the leakage of the inner lining of a pressure vessel to solve the above - mentioned technical problems. Content of the Utility Model

[0006] The utility model provides a pressure - retaining plugging device for the leakage of the inner lining of a pressure vessel, which solves the problem that the leakage of the inner lining of a pressure vessel after system shutdown will affect the continuity of normal production and bring unstable factors to production.

[0007] To solve the above - mentioned technical problems, the pressure - retaining plugging device for the leakage of the inner lining of a pressure vessel provided by the utility model includes: a support chassis;

[0008] A pressure vessel is mounted on top of a support base. A pipe cap is mounted on the outer surface of the pressure vessel. A first pair of connecting pipes is mounted on the top of the pipe cap. A first tee is mounted on the top of the first pair of connecting pipes via a first connector. A first valve is mounted on one opening of the first tee, and a second valve is mounted on the other opening. A second pair of connecting pipes is mounted on the bottom of the pipe cap. A second tee is mounted on the bottom of the second pair of connecting pipes via a second connector. A third valve is mounted on one opening of the second tee via a gas inlet pipe, and a fourth valve is mounted on the other opening of the second tee via a cooling water outlet pipe. A pressure monitoring gauge is mounted on one side of the pipe cap via a fixed base.

[0009] A cooling water tank is installed on top of a support base frame. A conveying assembly is installed on the top of the cooling water tank. A cooling water inlet pipe is installed at the outlet of the conveying assembly. An air conveying structure is installed on the top of the cooling water tank. An exhaust pipe is installed at the inlet of the air conveying structure.

[0010] The valves are electrically controlled, allowing for individual opening and closing or coordinated operation of multiple valves. This facilitates the discharge and injection of cooling water, as well as the discharge and injection of gas. The gas delivery structure includes a housing and a gas pump that can inject the corresponding gas into the inside of the pipe cap. When liquid flow is required, the valves on the gas pipeline are closed; when gas supply is required, the valves on the liquid pipeline are closed.

[0011] Preferably, the conveying assembly includes a protective shell, a connecting pipe, and a conveying component, wherein the protective shell is used to install the conveying component that provides liquid conveying force;

[0012] The connecting pipe is inserted into the interior of the cooling water tank.

[0013] Preferably, a monitoring structure and a maintenance pipe are respectively installed on the top of the pressure vessel, and an interception component is installed inside the cooling water tank;

[0014] The inspection pipe is usually sealed, the monitoring structure can monitor the pressure and temperature changes inside the pressure vessel, and the interception component can filter impurities in the liquid.

[0015] Preferably, the support frame includes a base plate, a mounting structure, and an adjustment structure, wherein the mounting structure is used to mount the adjustment structure on the bottom of the base plate;

[0016] The adjustment structure and the installation structure are connected by threads.

[0017] Preferably, both the front and back of the cap are fitted with connecting steel strips via mounting components, and the other ends of both connecting steel strips are fitted with butt buckles.

[0018] Two mating buckles can connect the other ends of two connecting steel strips together.

[0019] Preferably, the mounting assembly includes a mounting component, a fixing structure, and a docking structure, wherein the docking structure snaps into the bottom of the mounting component, and the fixing structure is used to connect the docking structure and the connecting steel strip together.

[0020] Compared with related technologies, the pressure vessel lining leakage plugging device provided by this utility model has the following beneficial effects:

[0021] This invention provides a pressure vessel lining leakage plugging device. To achieve pressure vessel leakage plugging under pressure without affecting the continuity of the production line, a first pair of connecting pipes is installed on the top of the cap. Then, a first tee with a first valve and a second valve is installed through a first connector. Cooling water is injected into the large cap using a conveying assembly. At the same time, a second pair of connecting pipes is used at the bottom of the cap to connect the gas inlet pipe and the cooling water outlet pipe through a second tee and a second connector. A pressure monitoring gauge is installed on one side of the cap via a fixed base to monitor the pressure in real time. This design allows for leakage plugging under normal pressure on the pressure vessel lining without requiring system shutdown, thus improving the continuity of the production line. Attached Figure Description

[0022] Figure 1 A schematic diagram of the first embodiment of the pressure vessel lining leakage plugging device provided by this utility model;

[0023] Figure 2 A schematic diagram of the adjustment structure is provided for this utility model;

[0024] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0025] Figure 4 A structural schematic diagram of the conveying component is provided for this utility model;

[0026] Figure 5 A schematic diagram of the second embodiment of the pressure vessel lining leakage plugging device provided by this utility model;

[0027] Figure 6 A schematic diagram of the structure of the connecting bolt is provided for this utility model.

[0028] The diagram is labeled as follows: 1. Support frame, 101. Base plate, 102. Mounting structure, 103. Adjustment structure, 2. Pressure vessel, 3. Pipe cap, 4. First connecting pipe, 5. First connector, 6. Monitoring structure, 7. Inspection pipe, 8. First tee, 9. First valve, 10. Second valve, 11. Exhaust pipe, 12. Cooling water inlet pipe, 13. Conveying assembly, 131. Protective shell, 132. Connecting pipe, 133. Conveying component, 14. Gas conveying structure, 15. Cooling water tank, 16. Pressure monitoring gauge, 17. Fixed base, 18. Second connecting pipe, 19. Second connector, 20. Second tee, 21. Third valve, 22. Cooling water outlet pipe, 23. Fourth valve, 24. Interception component, 25. Butt buckle, 26. Connecting steel strip, 27. Mounting assembly, 271. Mounting component, 272. Fixed structure, 273. Butt structure, 28. Gas inlet pipe. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] First Embodiment

[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the first embodiment of the pressure vessel lining leakage plugging device provided by this utility model; Figure 2 A schematic diagram of the adjustment structure is provided for this utility model; Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0032] Figure 4 This invention provides a structural schematic diagram of the conveying component. The pressure vessel lining leakage sealing device includes: a supporting base frame 1;

[0033] Pressure vessel 2 is mounted on top of support base 1. A pipe cap 3 is mounted on the outer surface of pressure vessel 2. A first pair of connecting pipes 4 is mounted on the top of the pipe cap 3. A first tee head 8 is mounted on the top of the first pair of connecting pipes 4 through a first connector 5. A first valve 9 is mounted on one opening of the first tee head 8, and a second valve 10 is mounted on the other opening of the first tee head 8. A second pair of connecting pipes 18 is mounted on the bottom of the pipe cap 3. A second tee head 20 is mounted on the bottom of the second pair of connecting pipes 18 through a second connector 19. A third valve 21 is mounted on one opening of the second tee head 20 through a gas inlet pipe 28, and a fourth valve 23 is mounted on the other opening of the second tee head 20 through a cooling water outlet pipe 22. A pressure monitoring gauge 16 is mounted on one side of the pipe cap 3 through a fixed base 17.

[0034] A cooling water tank 15 is installed on the top of the support base 1. A conveying assembly 13 is installed on the top of the cooling water tank 15. A cooling water inlet pipe 12 is installed at the outlet of the conveying assembly 13. An air conveying structure 14 is installed on the top of the cooling water tank 15. An exhaust pipe 11 is installed at the inlet of the air conveying structure 14.

[0035] The valves are electrically controlled and can be opened and closed individually or multiple valves can work together to facilitate the discharge and injection of cooling water, as well as the discharge and injection of gas. The gas supply structure 14 includes a housing and a gas pump that can inject the corresponding gas into the inside of the cap 3. When liquid flow is required, the valve on the gas pipeline is closed, and when gas supply is required, the valve on the liquid pipeline is closed. The other end of the exhaust pipe 11 is connected to the first valve 9, the other end of the cooling water inlet pipe 12 is connected to the second valve 10, and the other end of the third valve 21 is connected to the cooling water tank 15 through a pipeline.

[0036] The conveying assembly 13 includes a protective shell 131, a connecting pipe 132, and a conveying component 133. The protective shell 131 is used to install the conveying component 133, which provides liquid conveying force.

[0037] The connecting pipe 132 is inserted into the interior of the cooling water tank 15, and the conveying component 133 is a pump for conveying liquid.

[0038] The pressure vessel 2 is equipped with a monitoring structure 6 and a maintenance pipe 7 on its top, and the cooling water tank 15 is equipped with an interception component 24 inside.

[0039] The inspection pipe 7 is generally sealed. The monitoring structure 6 can monitor the pressure and temperature changes inside the pressure vessel 2. The interception component 24 can filter impurities in the liquid. The interception component 24 divides the cooling water tank 15 into front and rear spaces.

[0040] The support frame 1 includes a base plate 101, a mounting structure 102, and an adjustment structure 103. The mounting structure 102 is used to mount the adjustment structure 103 on the bottom of the base plate 101.

[0041] The adjusting structure 103 and the mounting structure 102 are threaded together and used to adjust the stability of the base plate 101.

[0042] The working principle of the pressure vessel lining leakage plugging device provided by this utility model is as follows:

[0043] A first pair of connecting pipes 4 is installed on the top of the cap 3. Then, a first tee connector 8 with a first valve 9 and a second valve 10 is installed via a first connector 5. Cooling water is injected into the large cap 3 using the delivery assembly 13. Simultaneously, at the bottom of the cap 3, a second pair of connecting pipes 18 connects the gas inlet pipe 28 and the cooling water outlet pipe 22 via a second tee connector 20 and a second connector 19. A pressure monitoring gauge 16 is installed on one side of the cap 3 via a fixed base 17 to monitor the pressure in real time. In actual use, a cap 3 is machined to fit the pressure vessel according to the location and size of the leak point. A hole of appropriate size is cut on one side of the cap 3 according to the leakage amount. Then, a first pair of connecting pipes 4 with internal threads is welded to this hole. This, along with the first tee connector 8, first valve 9, and second valve 10, discharges leaked gas and inert gas. When welding the cap 3, cooling water can be injected through the first tee joint 8, the first valve 9, and the second valve 10 to cool it down and prevent the inner lining from burning during welding. A second pair of inert gas connectors 18 with internal threads is welded to the other side of the cap 3. At the same time, cooling water can be drained during welding of the cap 3 to prevent excessive water accumulation inside the cap 3, which would make welding the cap 3 to the pressure vessel 2 inconvenient. A short external thread connector is also machined and mounted on the pressure monitoring gauge 16 through the fixed base 17 and welded to the cap 3 for easy monitoring of the inert gas pressure. After welding the cap 3, the cooling water inlet and outlet pipes are removed. Inert gas is installed at the cooling water outlet and an inert gas discharge pipe is installed at the cooling water inlet. Inert gas is then introduced into the inert gas port, and the pressure inside the cap is controlled by the inert gas discharge pipe. The pressure inside the cap is kept slightly higher than the system pressure by the pressure monitoring gauge 16, thus completing the leak sealing.

[0044] Compared with related technologies, the pressure vessel lining leakage plugging device provided by this utility model has the following beneficial effects:

[0045] To achieve pressure vessel leak repair under pressure without affecting the continuity of the production line, a first pair of connecting pipes 4 is installed on the top of the cap 3. Then, a first tee head 8 with a first valve 9 and a second valve 10 is installed through a first connector 5. Cooling water is injected into the large cap 3 using a conveying assembly 13. At the same time, at the bottom of the cap 3, a second pair of connecting pipes 18 connects the gas inlet pipe 28 and the cooling water outlet pipe 22 through a second tee head 20 and a second connector 19. A pressure monitoring gauge 16 is installed on one side of the cap 3 through a fixed base 17 to monitor the pressure in real time. With this design, leak sealing can be performed under normal pressure inside the pressure vessel 2 liner without system shutdown, which is beneficial to the continuity of the production line.

[0046] Second Embodiment

[0047] Please refer to the following: Figures 5-6 , Figure 5 A schematic diagram of the second embodiment of the pressure vessel lining leakage plugging device provided by this utility model; Figure 6 This utility model provides a structural schematic diagram of a connecting bolt. Based on the pressure vessel lining leakage sealing device provided in the first embodiment of this application, the second embodiment of this application proposes another pressure vessel lining leakage sealing device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0048] Specifically, the difference in the pressure vessel lining leakage plugging device provided in the second embodiment of this application is that the front and back of the cap 3 are both equipped with connecting steel strips 26 by mounting components 27, and the other ends of the two connecting steel strips 26 are equipped with butt buckles 25.

[0049] Two mating buckles 25 can be matched to connect the other ends of two connecting steel strips 26 together.

[0050] The mounting assembly 27 includes a mounting component 271, a fixing structure 272, and a docking structure 273. The docking structure 273 is inserted into the bottom of the mounting component 271, and the fixing structure 272 is used to connect the docking structure 273 and the connecting steel strip 26 together.

[0051] The mounting component 271 has an opening at its bottom for the docking structure 273 to be inserted.

[0052] Compared with related technologies, the pressure vessel lining leakage plugging device provided by this utility model has the following beneficial effects:

[0053] To facilitate the welding of the cap 3 and the pressure vessel 2, a flexible connecting steel strip 26 is installed on both the front and back of the cap 3 via the mounting assembly 27. The other ends of both connecting steel strips 26 are fitted with interlocking buckles 25, which connect the other ends of the two connecting steel strips 26. In actual use, the interlocking structure 273 is first inserted into the mounting component 271. Then, the cap 3 is installed on the outer surface of the pressure vessel 2 via the connecting steel strips 26. The two connecting steel strips 26 are then connected via the interlocking buckles 25 to secure the cap 3. After securing, the cap 3 can be welded. This design allows the cap 3 to be fixed during welding, facilitating welding and increasing welding stability.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pressure vessel lining leakage sealing device under pressure, characterized in that, include: Support frame; A pressure vessel is mounted on top of a support base. A pipe cap is mounted on the outer surface of the pressure vessel. A first pair of connecting pipes is mounted on the top of the pipe cap. A first tee is mounted on the top of the first pair of connecting pipes via a first connector. A first valve is mounted on one opening of the first tee, and a second valve is mounted on the other opening. A second pair of connecting pipes is mounted on the bottom of the pipe cap. A second tee is mounted on the bottom of the second pair of connecting pipes via a second connector. A third valve is mounted on one opening of the second tee via a gas inlet pipe, and a fourth valve is mounted on the other opening of the second tee via a cooling water outlet pipe. A pressure monitoring gauge is mounted on one side of the pipe cap via a fixed base. A cooling water tank is installed on top of a support base. A conveying assembly is installed on the top of the cooling water tank. A cooling water inlet pipe is installed at the outlet of the conveying assembly. An air conveying structure is installed on the top of the cooling water tank. An exhaust pipe is installed at the inlet of the air conveying structure.

2. The pressure vessel lining leakage sealing device according to claim 1, characterized in that, The delivery assembly includes a protective shell, a connecting pipe, and a delivery component. The protective shell is used to install the delivery component that provides liquid delivery force.

3. The pressure vessel lining leakage sealing device according to claim 1, characterized in that, The pressure vessel is equipped with a monitoring structure and a maintenance pipe on its top, and the cooling water tank is equipped with an interception component inside.

4. The pressure vessel lining leakage sealing device according to claim 1, characterized in that, The support frame includes a base plate, a mounting structure, and an adjustment structure. The mounting structure is used to mount the adjustment structure on the bottom of the base plate.

5. The pressure vessel lining leakage sealing device according to claim 1, characterized in that, Both the front and back of the cap are fitted with connecting steel strips via mounting components, and the other ends of both connecting steel strips are fitted with butt buckles.

6. The pressure vessel lining leakage sealing device according to claim 5, characterized in that, The mounting assembly includes mounting components, a fixing structure, and a docking structure. The docking structure snaps into the bottom of the mounting components, and the fixing structure is used to connect the docking structure and the connecting steel strip together.

Images