Pressure vessel leaking stoppage leading-out device

Abstract

The utility model discloses a pressure vessel leaking stoppage leading-out device which comprises a sealing cover used for covering a leaking position, a fixing mechanism used for pressing and fixing the sealing cover, a drainage pipe with one end communicated with the interior of the sealing cover, and a switch valve arranged at one end outside the drainage pipe. In the installation process, gas in the sealing cover is opened through the switch valve, then pressure relief installation is conducted, and the installed drainage pipe is closed and blocked through the switch valve. The device is simple in structure, convenient to use, capable of conducting pressure leakage stopping on tower devices and pipeline leakage parts for conveying corrosive, inflammable, explosive and other poisonous and harmful media, capable of avoiding gas leakage, suitable for tower device and pipeline leakage stopping in the chemical field and wide in application range.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical production, specifically to a pressure vessel leak sealing and drainage device. Background Technology

[0002] Hazardous chemicals are flammable, explosive, toxic, corrosive, and harmful gases or liquids. Pressure vessels containing hazardous chemicals may rupture, crack, or lose their seal during transportation or stationary storage due to poor manufacturing quality, damage during long-term operation, corrosion, extreme temperatures, vibration, or impact. Leaks can severely impact production, potentially causing shutdowns for repairs, consuming significant manpower and resources. Ordinary pressurized leak-sealing tools are inadequate for sealing leaks of this type of medium and pose significant safety hazards; failure to seal leaks promptly can have disastrous consequences. Currently, the most common leak-sealing method is using a leak-sealing gun, injecting adhesive into the leak and securing it with external force. However, this method is not effective and quick enough to seal gaps. Another method involves welding the leak or replacing the safety valve after the highly hazardous chemicals have completely leaked or been drained. These methods are only suitable for situations where there is no pressure or very low pressure at the site of the leak. While some leak-sealing devices can achieve sealing under pressure, these structures are generally only suitable for small pipes or containers. When the volume is large, the leak-sealing device is prone to popping open again due to internal pressure buildup during the sealing and securing process, before the operator has tightened the device, significantly increasing the operational risk. Summary of the Invention

[0003] In order to solve one or more technical problems existing in the prior art, the purpose of this application is to provide a pressure vessel plugging and drainage device, which can perform pressurized plugging of leaks in towers and pipelines transporting corrosive, flammable, explosive and other toxic and harmful media to prevent gas leakage. It is applicable to the plugging of leaks in towers and pipelines in the chemical industry and has a wide range of applications.

[0004] To address the aforementioned technical problems, the objective of this application is achieved through the following technical solution:

[0005] A pressure vessel leak sealing and drainage device includes a sealing cover for covering the leak, a fixing mechanism for pressing and fixing the sealing cover, a drainage pipe with one end connected to the inside of the sealing cover, and a switch valve located at the outside end of the drainage pipe. During installation, the gas inside the sealing cover is depressurized by opening the switch valve, and the drainage pipe is sealed by closing the switch valve after installation.

[0006] Preferably, the sealing cover has an annular mounting ring inside, and a sealing ring is provided on the mounting ring. The outer side of the sealing ring protrudes towards the opening end of the sealing cover, and one end of the drainage tube is located inside the mounting ring.

[0007] Preferably, the fixing mechanism includes a plurality of limiting rings disposed at the bottom of the sealing cover, a plurality of steel wire ropes for limiting by the limiting rings, and a locking device for fastening the two ends of the steel wire ropes.

[0008] Preferably, the switching valve is also provided with a nitrogen inlet pipe.

[0009] Preferably, the switching valve and the drain pipe are connected by a flange, and two hand-held parts are provided on the outside of the sealing cover.

[0010] Preferably, the sealing cover is equipped with a pressure gauge.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] During the process of sealing the leak of a pressurized pipe or container and fixing it with a fixing mechanism, opening the switch valve allows the internal pressure of the sealing cover to be released through the drainage pipe, while also better reducing actual gas or liquid leakage. After installation, simply closing the switch valve achieves a complete seal. This solves the problem that existing leak-sealing devices cannot easily fix the sealing cover to the leak in the pressure vessel, making leak sealing faster and more convenient. After leak sealing, the substances in the container can also be easily discharged. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] In the diagram: 1. Sealing ring; 2. Sealing cover; 3. Mounting ring; 4. Fixing mechanism; 41. Limiting ring; 42. Steel wire rope; 43. Locking device; 5. Drainage pipe; 6. Nitrogen inlet pipe; 7. Switch valve; 8. Pressure gauge; 9. Handheld part. Detailed Implementation

[0015] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0017] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0018] like Figure 1 As shown, a pressure vessel leak sealing and drainage device includes a sealing cover 2 for covering the leak, a fixing mechanism 4 for pressing and fixing the sealing cover 2, a drainage pipe 5 with one end connected to the inside of the sealing cover 2, and a switch valve 7 located at the outside end of the drainage pipe 5. During the installation process, the gas inside the sealing cover 2 is depressurized by opening the switch valve 7, and the drainage pipe 5 is closed and sealed by closing the switch valve 7 after installation.

[0019] In practical use, when a pressure vessel containing hazardous chemicals is found to be leaking due to damage, the sealing cover 2 should be placed on the leak and secured by the fixing mechanism 4. If the pressure becomes too high during the securing process and manual pressing is difficult, the pressure can be released through the drain pipe 5 by opening the switch valve 7, preventing the sealing cover 2 from loosening and causing a large amount of chemicals to leak out rapidly. During the process of sealing the leak of a pressurized pipe or container and securing it with the fixing mechanism 4, opening the switch valve 7 allows the internal pressure of the sealing cover 2 to be released through the drain pipe 5, while also better reducing actual gas or liquid leakage. After installation, simply closing the switch valve 7 achieves a complete seal. This solves the problem that existing leak-sealing devices cannot easily fix the sealing cover 2 to the leak in the pressure vessel, making leak sealing faster and more convenient. After leak sealing, the substances in the container can also be easily discharged.

[0020] After sealing the pressure vessel using a leak-proof device, firstly, it effectively saves standard gas and avoids pollution of the environment by toxic and harmful gases, reducing the risk of people being exposed to toxic and harmful gases and thus lowering the probability of related diseases. The public can live and work in a safer and healthier environment, free from the potential threats of toxic and harmful gases; this enhances social security and stability. The public no longer worries about the health effects of toxic and harmful gases, leading to a more stable social order. Secondly, its environmental protection effect is particularly significant. It avoids the pollution of natural resources such as the atmosphere, water bodies, and soil by harmful gases, effectively maintaining ecological balance. This not only helps protect the stability and integrity of the ecosystem but also ensures the survival and reproduction of various organisms, achieving rational use of resources and environmental protection; it also promotes technological progress and innovation in related industries, prompting relevant enterprises to continuously develop more energy-saving and environmentally friendly technologies and products, leaving broader space for future development.

[0021] A further improvement is that the interior of the sealing cover 2 is provided with an annular mounting ring 3, the mounting ring 3 is provided with a sealing ring 1, the outer side of the sealing ring 1 protrudes towards the opening end of the sealing cover 2, and one end of the drainage tube 5 is located inside the mounting ring 3.

[0022] When sealing through the sealing cover 2, a circular mounting ring 3 is formed inside it, and a thick sealing ring 1 that protrudes towards the opening end of the sealing cover 2 is installed on the mounting ring 3. The sealing ring 1 forms a sealed space after contacting the container surface, which not only improves the sealing effect but also ensures that the sealing ring 1 is inside the sealing cover 2, preventing rapid aging and extending its service life. The sealing cover 2 also achieves a secondary sealing effect. One end of the drainage tube 5 is located inside the mounting ring 3, facilitating the drainage of internal chemicals.

[0023] A further improvement is made to the fixing mechanism 4, which includes a plurality of limiting rings 41 disposed at the bottom of the sealing cover 2, a plurality of steel wire ropes 42 for limiting by the limiting rings 41, and a locking device 43 for fastening the two ends of the steel wire ropes 42.

[0024] When fixing by fixing mechanism 4, two wire ropes 42 are used. After passing through the limiting ring 41, they are wrapped around the container once and then the two ends are tightened by locking device 43. The operation is simpler and more convenient. Among them, the wire ropes 42 are tightened by manual hoist, which can make the binding tightness of the wire ropes 42 higher.

[0025] A further improvement is that the switching valve 7 is also provided with a nitrogen inlet pipe 6.

[0026] When sealing corrosive gases or liquids, after the device is installed, a nitrogen pipe can be connected to the nitrogen inlet pipe 6. Then, after opening the switch valve 7, nitrogen is injected into the device under high pressure, so that the corrosive gases or liquids are compressed and flowed back into the container under high pressure, thereby reducing corrosion to the outer wall of the container.

[0027] A further improvement is that the switching valve 7 and the drainage pipe 5 are connected by a flange, and two hand-held parts 9 are provided on the outside of the sealing cover 2.

[0028] The switch valve 7 and the drain pipe 5 are connected by a flange, which makes the connection simpler and more convenient. At the same time, two hand-held parts 9 are provided on the outside of the sealing cover 2, which can facilitate the operator to position the sealing cover 2 in the early stage.

[0029] A further improvement is that a pressure gauge 8 is provided on the sealing cover 2.

[0030] The pressure gauge 8 can display the pressure inside the device, allowing for timely adjustment of the switching valve 7.

[0031] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A pressure vessel leak containment and extraction apparatus, characterized by: The utility model relates to a sealing cover (2) for covering leakage, a fixing mechanism (4) for pressing and fixing the sealing cover (2), a drainage tube (5) with one end communicating with the inside of the sealing cover (2), and a switch valve (7) arranged at the outer end of the drainage tube (5), wherein the sealing cover (2) is installed by pressure relief during installation, and the drainage tube (5) is closed after installation.

2. A pressure vessel leak diversion device according to claim 1, wherein: The inside of the sealing cover (2) is provided with a circular mounting ring (3), the mounting ring (3) is provided with a sealing ring (1), the outer side of the sealing ring (1) protrudes towards the open end of the sealing cover (2), and one end of the drainage tube (5) is arranged in the mounting ring (3).

3. A pressure vessel leak diversion device according to claim 1, wherein: The fixing mechanism (4) comprises a plurality of limiting rings (41) arranged at the bottom of the sealing cover (2), a plurality of steel wire ropes (42) limited by the limiting rings (41), and a locking device (43) for fastening the two ends of the steel wire ropes (42).

4. A pressure vessel leak diversion device according to claim 1, wherein: The switch valve (7) is further provided with a nitrogen inlet pipe (6).

5. A pressure vessel leak diversion device according to claim 1, wherein: The switch valve (7) and the drainage tube (5) are connected by flanges, and the outer side of the sealing cover (2) is further provided with two hand-held parts (9).

6. A pressure vessel leak diversion device according to claim 1, wherein: The sealing cover (2) is provided with a pressure gauge (8).

Images