Disposal system for gas waste in compressed gas cylinder

By designing an automated compressed gas cylinder disposal system, the problem of unknown gas type and residual pressure was solved, achieving efficient and safe disposal of gas waste, and applicable to compressed gas cylinders of various specifications.

CN223895993UActive Publication Date: 2026-02-10HUNAN HANYANG ENVIRO PROTECTION SCI & TECH CO LTD
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Patent Information

Application Number
CN202520127722.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-10
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

The existing compressed gas cylinders have problems with unknown gas types and residual pressures, resulting in high disposal risks, unsafe operation, and low efficiency.

Method used

An automated processing system was designed, comprising a gas cylinder storage unit, a feeding unit, and a gas combustion unit. The system utilizes a feeding pipe, a gas mixing unit, a stainless steel injector, and a nitrogen delivery unit for gas combustion. Combined with pressure regulation, detection, and alarm devices, it ensures sealing and safety.

Benefits of technology

It enables efficient and safe disposal of compressed gas cylinders of different specifications, reduces operational risks, improves disposal efficiency and standardization, and has good application prospects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gas waste disposal system in a compressed gas cylinder. The gas waste disposal system comprises a gas cylinder storage unit, a feeding unit and a gas incineration unit, the feeding unit comprises a feeding pipe and a feeding spray gun; one end of the feeding pipe is connected with a compressed gas cylinder in the gas cylinder storage unit, the other end of the feeding pipe is connected with the feeding spray gun, and the feeding spray gun is connected with the gas incineration unit; a gas mixing unit is arranged on the feeding pipe and is connected with a nitrogen conveying unit. The gas waste disposal device can meet disposal requirements of gas waste in various compressed gas cylinders with different specifications and types, further improves disposal efficiency, disposal safety and standardization of the gas waste in the compressed gas cylinders, and has good application prospects.
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Description

Technical Field

[0001] This utility model relates to the technical field of hazardous waste treatment equipment, specifically a gaseous waste disposal system for compressed gas cylinders. Background Technology

[0002] Refillable compressed gas cylinders are used to store compressed gases such as permanent gases, liquefied gases, and dissolved gases. They mainly consist of a cylinder body, cap, valve, and shock-absorbing rubber rings. Among these, the valve, cap, and shock-absorbing rubber rings are safety accessories that play a crucial role in the safe use of the gas cylinder. With the development of various industries, a large number of compressed gas cylinders are used to store and transport various gases, such as liquefied petroleum gas, oxygen, acetylene, and hydrogen sulfide.

[0003] Compressed gases and liquefied gases are mostly flammable, explosive, and toxic, posing significant threats to personal safety and the environment. They are listed in the "List of Hazardous Chemicals" and are classified as hazardous chemicals. Hazardous waste disposal units receive and dispose of various compressed gas cylinders, most of which have unknown gas types and residual pressures. Therefore, developing a highly automated, well-sealed, safe, and rapid disposal system for gaseous waste from compressed gas cylinders is of significant practical importance. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a compressed gas waste disposal system in a compressed gas cylinder, so as to overcome the shortcomings in the above-mentioned background technology.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A gas waste disposal system for compressed gas cylinders includes a gas cylinder storage unit, a feeding unit, and a gas combustion unit;

[0007] The feeding unit includes a feeding pipe and a feeding nozzle; one end of the feeding pipe is connected to a compressed gas cylinder in the gas cylinder storage unit, and the other end of the feeding pipe is connected to the feeding nozzle, which is connected to the gas combustion unit.

[0008] A gas mixing unit is installed on the feed pipe, and the gas mixing unit is connected to the nitrogen delivery unit.

[0009] In this utility model, the feed pipe includes a main feed pipe and feed branch pipes. The main feed pipe is connected to multiple feed branch pipes arranged in parallel. Different feed branch pipes are equipped with different connector angle valves. Pressure regulating components are provided on the feed branch pipes, and pressure detection components are provided on the main feed pipe.

[0010] In this invention, the feed main pipe is connected to the gas mixing unit, which is a stainless steel injector, and the stainless steel injector is connected to the nitrogen delivery unit.

[0011] In this invention, the stainless steel injector is a venturi tube.

[0012] In this invention, a high-pressure resistant metal hose is provided between the stainless steel injector and the feed nozzle.

[0013] In this invention, a solenoid valve, a one-way valve, and a flame arrester are provided between the high-pressure resistant metal hose and the feed nozzle.

[0014] In this utility model, the gas cylinder storage unit includes a gas cylinder storage area, and a gas cylinder fixing frame is provided in the gas cylinder storage area.

[0015] This invention also includes a controller and an alarm unit connected to the controller, wherein the alarm unit includes a combustible gas detector and an alarm.

[0016] Beneficial Effects: The compressed gas waste disposal system for compressed gas cylinders described in this utility model can meet the disposal requirements of gas waste from various specifications and types of compressed gas cylinders. It reduces disposal risks, improves operational safety, and further enhances disposal efficiency and standardization. This utility model features a high degree of automation, good sealing, and safe and rapid operation, and has promising application prospects. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0018] The components include: 1. Gas cylinder storage unit; 11. Compressed gas cylinder; 12. Gas cylinder fixing frame; 13. Fixing chain; 2. Feeding unit; 21. Feeding branch pipe; 22. Feeding main pipe; 23. Feeding spray gun; 24. High-pressure resistant metal hose; 25. Hand valve; 26. Pressure regulating component; 27. Flame arrester; 28. Pressure detection component; 29. ​​One-way valve; 3. Gas combustion unit; 4. Nitrogen conveying unit; 5. Gas mixing unit; 6. Alarm unit. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] See Figure 1 The gas waste disposal system in the compressed gas cylinder 11 shown includes a gas cylinder storage unit 1, a feeding unit 2, and a gas incineration unit 3.

[0021] like Figure 1As shown, the gas cylinder storage unit 1 includes a gas cylinder storage area, within which a gas cylinder fixing frame 12 is installed. The compressed gas cylinder 11 is fixed to the gas cylinder fixing frame 12. In a preferred embodiment, the compressed gas cylinder 11 is further secured by a fixing chain 13 to prevent tilting or tipping, thus ensuring safety. Furthermore, the fixing frame is also equipped with an electrostatic grounding component for further safety assurance.

[0022] The feeding unit 2 includes a feeding pipe and a feeding nozzle 23. One end of the feeding pipe is connected to a compressed gas cylinder 11 in the gas cylinder storage unit 1, and the other end of the feeding pipe is connected to the feeding nozzle 23, which is connected to the gas combustion unit 3. The feeding nozzle 23 atomizes the compressed air in the feeding pipe and forms a shaped flame for combustion in the combustion unit, which includes a combustion chamber.

[0023] like Figure 1 As shown, the feed pipe includes a main feed pipe 22 and feed branch pipes 21. The main feed pipe 22 connects to multiple feed branch pipes 21 arranged in parallel. Different feed branch pipes 21 are equipped with different connector angle valves, thus enabling connection to compressed gas cylinders 11 of different specifications. In practical applications, compressed gas cylinders 11 have different specifications and different interfaces. Therefore, setting different connector angle valves on the feed branch pipes 21 can better meet the connection needs of different compressed gas cylinders 11, and achieve better sealing effect through better compatibility.

[0024] Accordingly, each of the feed branch pipes 21 is provided with a pressure regulating component 26, preferably a pressure regulating valve, and a manual valve 25 is also provided on the feed branch pipe 21. A pressure detection component 28 is provided on the feed main pipe 22, preferably a pressure gauge, so as to monitor and regulate the air pressure in the feed pipe in real time.

[0025] The feed manifold 22 is connected to the mixing unit 5, which is a stainless steel injector connected to the nitrogen delivery unit 4. In a preferred embodiment, the stainless steel injector is a venturi tube, ensuring thorough mixing of nitrogen and compressed gas in the mixing unit 5. This dilutes the compressed gas, reducing risks during disposal. Furthermore, the input of nitrogen helps maintain stable pressure within the feed manifold 22, facilitating timely detection of pipeline leaks and ensuring safe feeding of the feed nozzle 23. Additionally, the inlet of the stainless steel injector is connected to the nitrogen delivery unit 4, allowing nitrogen to be used to purge the gas in the compressed gas cylinder and pipelines, further ensuring the proper disposal of waste gas in the compressed gas cylinder.

[0026] A high-pressure resistant metal hose 24 is installed between the stainless steel injector and the feed nozzle 23. A solenoid valve, a one-way valve 29, and a flame arrester 27 are installed between the high-pressure resistant metal hose 24 and the feed nozzle 23. A pressure detection device can also be installed between the high-pressure resistant metal hose 24 and the feed nozzle 23. If the pressure detection device detects a low pressure between the high-pressure resistant metal hose 24 and the feed nozzle 23, a pipeline leak may exist. The pipeline can be shut off by the solenoid valve in case of emergency. Additionally, an emergency stop button can be installed for emergency braking. The one-way valve 29 and the flame arrester 27 are used to prevent the flame from flowing back into the compressed gas cylinder 11 and causing an explosion.

[0027] As a further improvement to this utility model, it also includes a controller and an alarm unit 6, wherein the alarm unit 6 includes a combustible gas detector and an alarm connected to the controller. In some other embodiments, the alarm unit 6 also includes a toxic gas detector. This enables real-time monitoring of any toxic or combustible gases leaking during operation, further ensuring safety.

[0028] In this utility model, the pressure regulating component 26, the pressure detection component 28, the solenoid valve, the nitrogen delivery unit 4, and the alarm unit 6 can all be electrically connected to the controller, thereby enabling automated processing, further improving work efficiency, and reducing the risk of manual operation.

[0029] As a further improvement to the utility model, both the feed branch pipe 21 and the feed main pipe 22 are made of corrosion-resistant and static-conducting pipelines; when laying the pipeline, spacer clamps and pipe supports are set up, and when the pipeline passes through obstacles, pipe sleeves are used and non-combustible materials are used to fill the gaps, so as to better adapt to the changes of different gases, avoid the leakage of corrosive gases, avoid the flow of flammable gases and cause fires, and further improve the overall operational safety.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A system for disposing of gaseous waste in compressed gas cylinders, characterized in that, It includes a gas cylinder storage unit, a feeding unit, and a gas combustion unit; The feeding unit includes a feeding pipe and a feeding nozzle; one end of the feeding pipe is connected to a compressed gas cylinder in the gas cylinder storage unit, and the other end of the feeding pipe is connected to the feeding nozzle, which is connected to the gas combustion unit. A gas mixing unit is installed on the feed pipe, and the gas mixing unit is connected to the nitrogen delivery unit.

2. The gas waste disposal system in compressed gas cylinders according to claim 1, characterized in that, The feed pipe includes a main feed pipe and feed branch pipes. The main feed pipe is connected to multiple feed branch pipes arranged in parallel. Different feed branch pipes are equipped with different connector angle valves. Pressure regulating components are installed on the feed branch pipes, and pressure detection components are installed on the main feed pipe.

3. The gas waste disposal system in compressed gas cylinders according to claim 2, characterized in that, The feed main pipe is connected to the gas mixing unit, which is a stainless steel injector, and the stainless steel injector is connected to the nitrogen delivery unit.

4. The gas waste disposal system in compressed gas cylinders according to claim 3, characterized in that, The stainless steel injector is a venturi tube.

5. The gas waste disposal system in compressed gas cylinders according to claim 3, characterized in that, A high-pressure resistant metal hose is installed between the stainless steel injector and the feed nozzle.

6. The gas waste disposal system in compressed gas cylinders according to claim 5, characterized in that, A solenoid valve, a one-way valve, and a flame arrester are installed between the high-pressure resistant metal hose and the feed nozzle.

7. The gas waste disposal system in compressed gas cylinders according to claim 1, characterized in that, The gas cylinder storage unit includes a gas cylinder storage area, within which a gas cylinder fixing rack is installed.

8. The gas waste disposal system in compressed gas cylinders according to claim 1, characterized in that, It also includes a controller and an alarm unit connected to the controller, wherein the alarm unit includes a combustible gas detector and an alarm.