Compressed gas emptying device of gas cylinder for respiratory protection
By designing a compressed gas venting device for gas venting in the discharge and explosion warehouse, the safety hazards caused by the lack of explosion-proof measures in the prior art are solved, and effective protection of gas venting is achieved, and the safety of operators and the environment is ensured.
Patent Information
- Application Number
- CN202422148885.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The prior art lacks explosion-proof measures when gas cylinder compressed gas is vented, which poses serious safety hazards and may lead to explosions and fire accidents.
A compressed gas venting device for breathing protection is designed. By putting the gas cylinder into the discharge and explosion chamber and putting the gas into the transshipment pipe and the high-altitude air venting pipe through a soft connection pipe, the entire air venting process is completed in the discharge and explosion chamber. The explosion holes in the explosion warehouse can quickly relieve pressure and prevent the explosion from causing damage to the surroundings.
It effectively prevents the explosion of gas cylinders or safety accessories from damage to operators and the environment, provides a solid protective barrier, and ensures the safety of industrial production and operators' lives.
Smart Images
Figure CN223036185U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of compressed gas venting of gas cylinders, and particularly relates to a compressed gas venting device for a breathing protection gas cylinder. Background Art
[0002] Breathing protection gas cylinders are widely used in major industrial safety production fields, such as composite gas cylinders for firefighters' air respirators, seamless steel gas cylinders for miners' oxygen respirators, etc. According to the requirements of the TSG 23-2021 "Safety Technical Code for Gas Cylinders" standard, gas cylinders need to be regularly inspected technically, and the compressed gas (compressed air, compressed oxygen) in the cylinders needs to be safely vented before. There are two common existing venting methods: one is to directly and slowly open the cylinder valve of the gas cylinder to vent directly to the atmosphere. Although this method is popular, there are serious safety hazards. For example, the explosion of the gas cylinder and safety accessories during venting may cause casualties, and if the compressed oxygen is directly vented, it is extremely easy to cause production safety accidents such as fires or explosions if there is hot work, fire source, flammable and explosive gases, static electricity, etc. nearby; the other is to select a manifold, with the front end connected to the gas cylinder and the rear end connected to the venting pipeline to a high altitude outdoors, which can avoid the fire risk to a certain extent, but there is still no safety guarantee for the explosion of the gas cylinder or safety accessories. Therefore, a compressed gas venting device for a breathing protection gas cylinder is provided. Content of the Utility Model
[0003] Aiming at the problem that there are no explosion-proof measures and safety hazards when venting the compressed gas in the cylinder in the prior art, the utility model provides a compressed gas venting device for a breathing protection gas cylinder. When venting the compressed gas of the gas cylinder, the door of the chamber can be opened to put the gas cylinder into the U-shaped bracket. After connecting the flexible connecting pipe to the gas cylinder and closing the door of the chamber, the venting gas can be selected by controlling the corresponding selection valve. The whole process of gas venting is completed in the explosion relief chamber, which provides a solid protective barrier for possible accidents. When the gas cylinder or safety accessories fail or even explode, the explosion relief hole A in the explosion relief chamber can quickly and effectively relieve the huge pressure generated by the explosion, not only avoiding the serious harm directly caused by the explosion to the surrounding operators, but also minimizing the damage degree of the explosion to the surrounding environment and equipment, providing a reliable guarantee for industrial production and the life safety of operators, and effectively solving the problem that there are no explosion-proof measures and safety hazards when venting the compressed gas in the cylinder in the prior art. The specific technical solution is as follows:
[0004] A compressed gas venting device for a breathing protection gas cylinder, comprising an explosion venting chamber with an opening on its front surface. Explosion venting holes A are provided on the inner cavity side wall, the lower surface of the inner cavity and the rear surface of the explosion venting chamber. A control chamber is fixedly installed on the upper surface of the explosion venting chamber. A chamber door is rotatably installed in the opening of the explosion venting chamber. A plurality of U-shaped brackets are fixedly installed on the rear surface of the chamber door. A limit baffle is fixedly installed on the upper surfaces of the plurality of U-shaped brackets. The limit baffle is Z-shaped, and explosion venting holes B are provided through the outer surface of the limit baffle. A transfer pipe and a high-altitude venting pipeline are fixedly installed in the control chamber. The exhaust end of the transfer pipe is connected to the intake end of the high-altitude venting pipeline. The exhaust end of the high-altitude venting pipeline is arranged outside the control chamber. A plurality of pressure gauges A, a safety valve, a pressure gauge B, a main vent valve and a pressure gauge C are arranged in the pipeline of the transfer pipe. The pressure gauges A are all embedded and installed on the front surface of the control chamber, and the inlet ends of the pressure gauges A are all connected with selection valves. The intake ends of the selection valves are all connected with flexible connecting pipes with connectors. The flexible connecting pipes are located in the explosion venting chamber. The plurality of pressure gauges A, selection valves, pressure gauge B, main vent valve and pressure gauge C are all fixedly installed on the front surface of the control chamber.
[0005] In the above technical solution, a plurality of through holes are provided through the top of the limit baffle, and the flexible connecting pipes pass through the corresponding through holes and are located in the U-shaped brackets.
[0006] In the above technical solution, a silencer is provided at the end of the pipeline of the transfer pipe.
[0007] In the above technical solution, a flame arrester is provided at the end of the pipeline of the transfer pipe, and the flame arrester is arranged after the silencer.
[0008] In the above technical solution, an anti-seismic support body is fixedly installed between the high-altitude venting pipeline and the inner side wall of the control chamber.
[0009] In the above technical solution, a rain shield is fixedly installed at the exhaust end of the high-altitude venting pipeline.
[0010] Compared with the prior art, the beneficial effects of a compressed gas venting device for a breathing protection gas cylinder of the present utility model are as follows:
[0011] When the present utility model vents the compressed gas of the gas cylinder, the whole process of gas venting is completed in the explosion venting chamber, which provides a solid protective barrier for possible accidents. When a failure or even explosion occurs in the gas cylinder or safety accessories, the explosion venting holes A in the explosion venting chamber can quickly and effectively relieve the huge pressure generated by the explosion, not only avoiding the serious injury directly caused by the explosion to the surrounding operators, but also minimizing the damage degree of the explosion to the surrounding environment and equipment, and providing reliable guarantee for industrial production and the life safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is the front view structural schematic diagram of the present utility model.
[0013] Figure 2 This is the structural schematic diagram of the bin door of the present utility model.
[0014] Figure 3 This is the process flow chart of the present utility model.
[0015] Figures 1-3 Among them: 1. Explosion relief bin; 11. Explosion relief hole A; 12. Locking port; 2. Control bin; 3. Bin door; 31. U-shaped bracket; 32. Limit baffle; 321. Through port; 322. Explosion relief hole B; 4. Air spring lock main body; 41. Locking handle; 5. Transfer pipe; 51. Pressure gauge A; 52. Selective valve; 53. Flexible connecting pipe; 54. Safety valve; 55. Pressure gauge B; 56. Main vent valve; 57. Pressure gauge C; 58. Silencer; 59. Flame arrester; 6. High-altitude vent pipeline; 61. Rain shield; 7. Anti-seismic support main body. Specific embodiments
[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0017] The front, back, left, right, up and down in this embodiment are described with Figure 1 as the reference plane. Please refer to Figures 1-3 , the present utility model provides a technical solution:
[0018] An air cylinder compressed gas venting device for respiratory protection, comprising an explosion venting chamber 1 with an opening on its front surface. Explosion venting holes A11 are provided on the inner cavity side wall, the lower surface of the inner cavity and the rear surface of the explosion venting chamber 1. A control chamber 2 is fixedly installed on the upper surface of the explosion venting chamber 1. A chamber door 3 is rotatably installed in the opening of the explosion venting chamber 1. A plurality of U-shaped brackets 31 are fixedly installed on the rear surface of the chamber door 3. A limit baffle 32 is fixedly installed on the upper surfaces of the plurality of U-shaped brackets 31. The limit baffle 32 is Z-shaped, and explosion venting holes B322 are penetrated on the outer surface of the limit baffle 32. A transfer pipe 5 and a high-altitude venting pipeline 6 are fixedly installed in the control chamber 2. The exhaust end of the transfer pipe 5 is connected to the intake end of the high-altitude venting pipeline 6. The exhaust end of the high-altitude venting pipeline 6 is arranged outside the control chamber 2. A plurality of pressure gauges A51, a safety valve 54, a pressure gauge B55, a main vent valve 56 and a pressure gauge C57 are arranged in the pipeline of the transfer pipe 5. The pressure gauges A51 are all embedded and installed on the front surface of the control chamber 2, and the inlet ends of the pressure gauges A51 are all connected with a selection valve 52. The intake ends of the selection valves 52 are all connected with a flexible connecting pipe 53 with a connector. The flexible connecting pipe 53 is located in the explosion venting chamber 1. The plurality of pressure gauges A51, the selection valves 52, the pressure gauge B55, the main vent valve 56 and the pressure gauge C57 are all fixedly installed on the front surface of the control chamber 2.
[0019] It should be noted that locking ports 12 are oppositely provided on the inner side wall of the explosion venting chamber 1. Air spring lock bodies 4 are installed on the left and right surfaces of the chamber door 3. When the chamber door 3 is in a vertical state, the air spring lock bodies 4 are clamped in the corresponding locking ports 12 to fix the chamber door 3. An unlocking handle 41 for pulling the air spring lock body 4 inward is hingedly installed on the front surface of the chamber door 3. A linkage rod is arranged between the unlocking handle 41 and the air spring lock body 4. The movement of the handle is transmitted to the control mechanism of the air spring lock body by the linkage rod. When the handle is operated, the components inside the lock are driven by the linkage rod to realize the unlocking or locking action. This method is prior art and will not be explained in detail here;
[0020] During use, combined with Figure 1 Figure 2 and Figure 3As shown, pressing down the unlocking handle 41 can separate the air spring lock body 4 from the locking port 12. After that, pulling the unlocking handle 41 outward can open the storage door 3. Then, place the gas cylinder to be emptied into the U-shaped bracket 31, and install the flexible connecting pipe 53 to the bottle mouth of the gas cylinder through the connector. After that, open the valve of the gas cylinder, close the storage door 3, and the air spring lock body 4 is re-fastened into the locking port 12 to fix the position of the storage door 3. Then, open the selection valve 52 and the main emptying valve 56 at the corresponding positions, and release the gas in the gas cylinder into the transfer pipe 5. The gas enters the high-altitude emptying pipeline 6 after being detected by the pressure gauge B55 and the pressure gauge C57, and finally is discharged to the outside from a high place. Compared with the prior art, the entire discharging process of the gas cylinder of the present device is completed in the explosion relief chamber 1, which provides a solid protective barrier for possible accidents. When a gas cylinder or safety accessories fail or even explode, the explosion relief hole A11 in the explosion relief chamber 1 can quickly and effectively relieve the huge pressure generated by the explosion, not only avoiding serious injuries directly caused by the explosion to the surrounding operators, but also minimizing the damage degree of the explosion to the surrounding environment and equipment, providing reliable protection for industrial production and the safety of operators' lives.
[0021] In addition, to facilitate the connection between the flexible connecting pipe 53 and the gas cylinder, a plurality of through holes 321 are formed through the top of the limit baffle 32. The flexible connecting pipe 53 passes through the corresponding through holes 321 and is located in the U-shaped bracket 31, so that the operator can quickly locate the position of the flexible connecting pipe 53 without having to search for it laboriously during the process of placing the gas cylinder, greatly saving the operation time and improving the work efficiency.
[0022] In addition, to reduce the noise generated when discharging the gas, such as Figure 3 As shown, a silencer 58 is provided at the end of the pipeline of the transfer pipe 5.
[0023] As Figure 3 shown, as shown in 3, a flame arrester 59 is provided at the end of the pipeline of the transfer pipe 5. The flame arrester 59 is arranged behind the silencer 58. In the event of an explosion, the flame arrester 59 can reduce the damage degree of the explosion impact on the pipeline and related equipment. It can absorb and disperse the explosion energy, reduce the pressure borne by the pipeline and equipment, and extend the service life of the equipment.
[0024] An anti-seismic support body 7 is fixedly installed between the inner side wall of the control chamber 2 and the high-altitude emptying pipeline 6. During the operation of the equipment, various vibrations may occur, such as the vibration of the equipment itself and the vibration of the external environment. The anti-seismic support body 7 can effectively absorb and buffer these vibrations, prevent the vibrations from being transmitted to the high-altitude emptying pipeline 6, and reduce the risk of fatigue damage and rupture of the pipeline caused by vibrations;
[0025] Finally, to prevent rainwater from entering the exhaust pipe of the high-altitude vent pipe 6 during the rainy season, as Figure 1 or Figure 3 shown, a rain shield 61 is fixedly installed at the exhaust end of the high-altitude vent pipe 6.
Claims
1. A compressed gas venting device for a respiratory protection gas cylinder, comprising an explosion venting chamber (1) with an opening on the front surface, explosion venting holes A (11) are opened on the inner cavity side wall, the inner cavity lower surface and the rear surface of the explosion venting chamber (1), and a control chamber (2) is fixedly installed on the upper surface of the explosion venting chamber (1), characterized in that: A door (3) is rotatably mounted in the opening of the explosion relief chamber (1); a plurality of U-shaped brackets (31) are fixedly mounted on the rear surface of the door (3); a limit baffle (32) is fixedly mounted on the upper surface of the plurality of U-shaped brackets (31); the limit baffle (32) is Z-shaped, and an explosion relief hole B (322) is penetrated through the outer surface of the limit baffle (32); A transfer pipe (5) and a high-altitude venting pipeline (6) are fixedly installed in the control chamber (2); the exhaust end of the transfer pipe (5) is connected to the air inlet end of the high-altitude venting pipeline (6), and the exhaust end of the high-altitude venting pipeline (6) is arranged outside the control chamber (2); The pipeline of the transfer pipe (5) is provided with a plurality of pressure gauges A (51), a safety valve (54), a pressure gauge B (55), a main vent valve (56) and a pressure gauge C (57); the pressure gauges A (51) are embedded and installed on the front surface of the control chamber (2); the inlet ends of the pressure gauges A (51) are connected to the selection valves (52); the air inlet ends of the selection valves (52) are connected to the soft connecting pipes (53) with connectors; the soft connecting pipes (53) are located in the explosion venting chamber (1); The plurality of pressure gauges A (51), the selector valve (52), the pressure gauge B (55), the main vent valve (56) and the pressure gauge C (57) are all fixedly mounted on the front surface of the control chamber (2).
2. A device for venting compressed gas from a gas cylinder for respiratory protection according to claim 1, characterized in that: A plurality of through openings (321) are formed through the top of the position limiting baffle (32), and the flexible connecting pipe (53) passes through the corresponding through openings (321) and is located inside the U-shaped bracket (31).
3. A device for venting compressed gas from a gas cylinder for respiratory protection according to claim 2, characterized in that: A silencer (58) is provided at the end of the pipeline of the transfer pipe (5).
4. A device for venting compressed gas from a gas cylinder for respiratory protection according to claim 3, characterized in that: A flame arrester (59) is provided at the pipeline end of the transfer pipe (5), and the flame arrester (59) is arranged after the muffler (58).
5. A device for venting compressed gas from a gas cylinder for respiratory protection according to claim 1, characterized in that: An anti-seismic support body (7) is fixedly installed between the high-altitude venting pipeline (6) and the inner side wall of the control chamber (2).
6. A device for venting compressed gas from a gas cylinder for respiratory protection according to claim 5, characterized in that: A rain cover (61) is fixedly mounted on the exhaust end of the high-altitude exhaust pipeline (6).