Gas supply device

By designing a gas supply device to achieve interconnection between high and low pressure systems and using the remaining high-pressure gas to supply gas to the low-pressure system, the problems of gas waste and production interruption are solved, resource conservation and production stability are achieved, and the company's operating costs are reduced.

CN223709343UActive Publication Date: 2025-12-23HEFEI KEWELL POWER SYST CO LTD
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Patent Information

Application Number
CN202520490119.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2025-12-23
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

The existing independent design of high-pressure and low-pressure gas supply systems leads to problems such as gas waste, production interruptions, and increased costs.

Method used

Design a gas supply device that connects the first and second gas cylinders, the gas supply pipeline and the valve to achieve interconnection between the high and low pressure systems, uses the remaining high pressure gas to supply gas to the low pressure system, and ensures the continuity and safety of the gas supply through pressure sensors and an automatic control system.

Benefits of technology

Maximize the use of gas resources, reduce waste, ensure production continuity and stability, reduce operating costs, and improve economic efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223709343U_ABST
    Figure CN223709343U_ABST
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Abstract

The utility model discloses a gas supply device which comprises a first gas cylinder, a second gas cylinder, a first gas supply pipeline, a second gas supply pipeline, a first branch pipeline, a second branch pipeline, a high-pressure gas supply pipeline, a low-pressure gas supply pipeline, a first high-pressure valve, a second high-pressure valve, a first low-pressure valve and a second low-pressure valve. The first gas cylinder and the second gas cylinder are respectively communicated with a high-pressure gas supply pipeline through a first gas supply pipeline and a second gas supply pipeline, a first high-pressure valve is arranged on the first gas supply pipeline, and a second high-pressure valve is arranged on the second gas supply pipeline. The gas supply device has the advantages that due to the arrangement of the gas supply device, gas waste is reduced, and cost is reduced; and when the gas cylinders are switched, the other path of gas supply is ensured to be uninterrupted, field equipment is ensured to be always in a normal operation state, and the operation cost of an enterprise is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to gas supply technical field, specifically relate to a gas supply device. BACKGROUND

[0002] In modern industrial production, gas supply system plays a vital role, is widely used in various manufacturing and processing technology. Gas supply system is usually divided into high pressure gas supply system and low pressure gas supply system two. High pressure gas supply system is mainly used for the industrial equipment and process that need high energy, such as high back pressure demand, welding and some chemical reactions. And low pressure gas supply system is used for general pneumatic equipment, cleaning, purging and other auxiliary purposes.

[0003] The high pressure and low pressure gas supply system of prior art at present is usually independent in design and operation. High pressure gas supply system maintains higher pressure through primary pressure reduction, and is directly delivered to the equipment needing high pressure gas for use. And low pressure gas supply system obtains gas source from high pressure gas through secondary pressure reduction device to meet the demand of low pressure equipment. Although this design can effectively operate in some application scenarios, some defects are exposed in actual operation. For example, the existing independent high pressure and low pressure gas supply system has the following main problems:

[0004] 1. Gas waste: after high pressure gas is used to a certain extent, its pressure will gradually decrease. When the pressure drops to a certain critical value, the high pressure system will no longer be able to provide enough gas for high pressure equipment. At this time, although the remaining gas still has a certain pressure, it cannot be directly used and is usually wasted.

[0005] 2. Production interruption: high pressure gas supply system stops gas supply when the pressure is insufficient, which not only affects the normal operation of high pressure equipment, but also causes low pressure equipment to be unable to continue to obtain gas source from high pressure system due to the replacement of gas source, thereby causing the overall interruption of production line.

[0006] 3. Cost increase: due to gas waste and production interruption, enterprises need to invest more resources to re-compress and store gas, or purchase new gas source, and these additional costs will significantly increase the operating burden of enterprises. INVENTION CONTENT

[0007] The technical problem to be solved by the utility model is how to reduce gas waste, prevent production interruption and reduce cost.

[0008] To solve the above technical problems, the utility model provides the following technical scheme:

[0009] A gas supply device, comprising a first emptying pipe structure and a second emptying pipe structure.

[0010] The first gas cylinder and the second gas cylinder are communicated with the high-pressure gas supply pipeline through the first gas supply pipeline and the second gas supply pipeline respectively, the first gas supply pipeline is provided with the first high-pressure valve, the second gas supply pipeline is provided with the second high-pressure valve, the first gas supply pipeline between the first high-pressure valve and the first gas cylinder is communicated with the low-pressure gas supply pipeline through the first branch pipeline, the second gas supply pipeline between the second high-pressure valve and the second gas cylinder is communicated with the low-pressure gas supply pipeline through the second branch pipeline, the first branch pipeline is provided with the first low-pressure valve, and the second branch pipeline is provided with the second low-pressure valve.

[0011] By the gas supply device, when the high-pressure gas reaches the lower limit of use, the low-pressure system can still be supplied with gas, the remaining gas resources are maximally utilized, waste is reduced, and cost is reduced; and when the gas cylinders are switched, the other gas supply is ensured to be uninterrupted, the on-site equipment is ensured to be in a normal running state all the time, production continuity and stability are improved, and thus the operation cost of the enterprise is reduced, and the economic benefit in the production process is improved.

[0012] Preferably, the first gas supply pipeline between the first high-pressure valve and the first gas cylinder is provided with a first check valve.

[0013] Preferably, the second gas supply pipeline between the second high-pressure valve and the second gas cylinder is provided with a second check valve.

[0014] Preferably, the first gas supply pipeline is provided with a first pressure sensor.

[0015] Preferably, the second gas supply pipeline is provided with a second pressure sensor.

[0016] Preferably, the first gas supply pipeline is provided with a first emptying ball valve.

[0017] Preferably, the second gas supply pipeline is provided with a second emptying ball valve.

[0018] Preferably, the high-pressure gas supply pipeline is provided with a high-pressure side pressure reducing valve.

[0019] Preferably, the low-pressure gas supply pipeline is provided with a low-pressure side pressure reducing valve.

[0020] Preferably, the first high-pressure valve, the second high-pressure valve, the first low-pressure valve and the second low-pressure valve are all ball valves.

[0021] Compared with the prior art, the gas supply device has the following beneficial effects:

[0022] 1. Save gas resources: through the setting of the gas supply device, when the high-pressure gas reaches the lower limit of use, it can still supply gas to the low-pressure system, maximize the use of remaining gas resources, reduce waste and reduce costs.

[0023] 2. Safe supply: through the switching of multiple valves, it is ensured that switching between high and low pressure gas supply systems can be carried out safely and smoothly, preventing gas supply interruption or safety accidents caused by operation errors.

[0024] 3. Dual gas supply: a dual gas supply system is designed to ensure uninterrupted gas supply from another path when the gas cylinder is switched, ensuring that the on-site equipment is always in normal operation, improving production continuity and stability.

[0025] 4. Improve economic efficiency: by reducing gas waste and production interruption time, reducing the operating costs of enterprises and improving economic efficiency during production.

[0026] 5. Real-time pressure monitoring: through the setting of the first and second pressure sensors, the gas pressure can be monitored in real time, and a prompt will be given when the gas pressure approaches the critical value, notifying the on-site personnel to switch the gas supply source in time to avoid production interruption caused by insufficient gas pressure. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of an embodiment of the present application. DETAILED DESCRIPTION

[0028] To facilitate those skilled in the art to understand the technical scheme of the present application, the technical scheme of the present application will be further described in conjunction with the drawings of the specification.

[0029] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0030] In this application, unless otherwise explicitly specified and limited, the terms "first", "second" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0031] Referring to Figure 1 The embodiment discloses a gas supply device, which comprises a first gas cylinder 1, a second gas cylinder 2, a first gas supply pipeline 3, a second gas supply pipeline 4, a first branch pipeline 5, a second branch pipeline 6, a high-pressure gas supply pipeline 7, a low-pressure gas supply pipeline 8, a first high-pressure valve 9, a second high-pressure valve 10, a first one-way valve 11, a second one-way valve 12, a first low-pressure valve 13, a second low-pressure valve 14, a high-pressure side pressure reducing valve 15, a low-pressure side pressure reducing valve 16, a first pressure sensor 17, a second pressure sensor 18, a first emptying ball valve 19 and a second emptying ball valve 20.

[0032] The first gas cylinder 1 and the second gas cylinder 2 are communicated with the high-pressure gas supply pipeline 7 through the first gas supply pipeline 3 and the second gas supply pipeline 4 respectively, the first gas supply pipeline 3 is provided with the first high-pressure valve 9 and the first one-way valve 11, the second gas supply pipeline 4 is provided with the second high-pressure valve 10 and the second one-way valve 12, the first gas supply pipeline 3 between the first high-pressure valve 9 and the first one-way valve 11 is communicated with the low-pressure gas supply pipeline 8 through the first branch pipeline 5, the second gas supply pipeline 4 between the second high-pressure valve 10 and the second one-way valve 12 is communicated with the low-pressure gas supply pipeline 8 through the second branch pipeline 6, the first branch pipeline 5 is provided with the first low-pressure valve 13, and the second branch pipeline 6 is provided with the second low-pressure valve 14. In the embodiment, the first high-pressure valve 9, the second high-pressure valve 10, the first low-pressure valve 13 and the second low-pressure valve 14 are all ball valves.

[0033] The high-pressure gas supply pipeline 7 is provided with the high-pressure side pressure reducing valve 15, and the low-pressure gas supply pipeline 8 is provided with the low-pressure side pressure reducing valve 16.

[0034] The first gas supply pipeline 3 is further provided with the first pressure sensor 17 and the first emptying ball valve 19, and the second gas supply pipeline 4 is provided with the second pressure sensor 18 and the second emptying ball valve 20.

[0035] Further, the first pressure sensor 17 and the second pressure sensor 18 are electrically connected with an external pressure monitoring and reminding device 21.

[0036] The working principle of the embodiment is as follows: in the embodiment, 5MPa high pressure and 1MPa low pressure are taken as the gas supply standard, and the first gas cylinder 1 and the second gas cylinder 2 are first filled with high-pressure gas.

[0037] Taking the gas in the first gas cylinder 1 as an example, first, all the valves in the system are kept in the closed state, the gas cylinder valve of the first gas cylinder 1 is opened, the gas passes through the first one-way valve 11, at this time, the first high-pressure valve 9 is slowly opened, the gas reaches the high-pressure side pressure reducing valve 15, the pressure after pressure reduction of the high-pressure side pressure reducing valve 15 is adjusted to 5MPa, so as to meet the use requirement of the high-pressure gas equipment.

[0038] At this time, the first low-pressure valve 13 is opened, and the gas reaches the low-pressure side pressure reducing valve 16 after passing through the first low-pressure valve 13, and the pressure reducing pressure of the low-pressure side pressure reducing valve 16 is adjusted to 1 MPa. At this time, the gas supply of the high-pressure side and the low-pressure side has been completed by the first gas cylinder 1 combined with the gas supply device.

[0039] The current pressure is determined again by the first pressure sensor 17, and when the pressure of the first pressure sensor 17 is lower than 5 MPa, the pressure monitoring and reminding device 21 will issue a prompt to inform the on-site personnel that the current pressure of the first gas cylinder 1 is lower than the use requirement of high-pressure gas. At this time, the valve of the second gas cylinder 2 can be opened, and the high-pressure gas passes through the second one-way valve 12 and the second high-pressure valve 10, and then continues to supply high-pressure gas to the system after passing through the high-pressure side pressure reducing valve 15. At this time, the first high-pressure valve 9 also needs to be closed to prevent too much gas from being supplied to the low-pressure side through this valve. The first one-way valve 11 can prevent high-pressure gas from being filled into the first gas cylinder 1 with lower pressure during switching.

[0040] With continuous use, the pressure is continuously observed by the first pressure sensor 17, and when the pressure is lower than 1 MPa, the pressure monitoring and reminding device 21 will issue a prompt to inform the on-site personnel that the current pressure of the first gas cylinder 1 is lower than the use requirement of low-pressure gas and needs to be replaced. At this time, the second low-pressure valve 14 needs to be opened, and the first low-pressure valve 13 needs to be closed, and at this time, the second gas cylinder 2 is used to supply gas to the high-pressure side and the low-pressure side. After the switching is completed, the valve switch of the first gas cylinder 1 is closed, the gas in the pipeline is discharged by opening the first emptying ball valve 19, and then the first gas cylinder 1 is removed and replaced with a new gas cylinder group. When the pressure of the second gas cylinder 2 also reaches the pressure critical point of 5 MPa and 1 MPa, the valve switching and gas cylinder replacement are performed in the same way as described above.

[0041] In addition, it should be noted that the valves in the embodiment are all solenoid valves, and the automatic switching of high and low pressure gas supply is realized by automatic control.

[0042] In summary, the safe supply of high and low pressure gas is ensured by switching of multiple valves, and the double gas supply is set to ensure that the gas supply at the scene will not be affected when the gas cylinder is switched, and the normal operation of the on-site equipment is ensured. Specifically:

[0043] 1. Saving gas resources: By the setting of the gas supply device, when the high-pressure gas reaches the lower limit of use, it can still supply low-pressure system, maximizing the use of remaining gas resources, reducing waste and cost.

[0044] 2. Safe supply: By switching multiple valves, it can be ensured that the switching between high and low pressure gas supply systems can be carried out safely and smoothly, preventing gas supply interruption or safety accidents caused by operation errors.

[0045] 3. Dual gas supply: A dual gas supply system is designed to ensure uninterrupted gas supply from the other route when the gas cylinder is switched, ensuring that the on-site equipment is always in normal operation, improving production continuity and stability.

[0046] 4. Improve economic efficiency: By reducing gas waste and production downtime, reducing operating costs for the enterprise, and improving economic efficiency during production.

[0047] 5. Real-time pressure monitoring: Through the setting of the first pressure sensor 17, the second pressure sensor 18 and the pressure monitoring reminder device 21, the gas pressure can be monitored in real time, and a prompt will be given when the gas pressure approaches the critical value, notifying the on-site personnel to switch the gas supply source in time, avoiding production interruption due to insufficient gas pressure.

[0048] 6. Easy to operate: The intelligent control and automatic switching function of the system can be set to simplify the operation process, reduce manual intervention, and improve the reliability and efficiency of the system operation.

[0049] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be considered as limiting the claims involved.

[0050] The above-described embodiments only represent the implementation of the present application, and the protection scope of the present application is not limited to the above-described embodiments. For those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A gas supply device characterized by comprising: The first gas cylinder, the second gas cylinder, the first gas supply pipeline, the second gas supply pipeline, the first branch pipeline, the second branch pipeline, the high-pressure gas supply pipeline, the low-pressure gas supply pipeline, the first high-pressure valve, the second high-pressure valve, the first low-pressure valve, and the second low-pressure valve are provided.

2. The gas supply apparatus according to claim 1, characterized by: A first one-way valve is arranged on the first gas supply pipeline between the first high-pressure valve and the first gas cylinder.

3. The gas supply apparatus according to claim 1, characterized by: A second one-way valve is arranged on the second gas supply pipeline between the second high-pressure valve and the second gas cylinder.

4. The gas supply apparatus according to claim 1, characterized by: A first pressure sensor is arranged on the first gas supply pipeline.

5. The gas supply apparatus according to claim 1, characterized by: A second pressure sensor is arranged on the second gas supply pipeline.

6. The gas supply apparatus according to claim 1, characterized by: A first emptying ball valve is arranged on the first gas supply pipeline.

7. The gas supply apparatus according to claim 1, wherein: A second emptying ball valve is arranged on the second gas supply pipeline.

8. The gas supply apparatus according to claim 1, characterized by: A high-pressure side pressure reducing valve is arranged on the high-pressure gas supply pipeline.

9. The gas supply apparatus according to claim 1, wherein: A low-pressure side pressure reducing valve is arranged on the low-pressure gas supply pipeline.

10. The gas supply apparatus according to claim 1, characterized by: The first high-pressure valve, the second high-pressure valve, the first low-pressure valve, and the second low-pressure valve are ball valves.