Double-gas-path supply device capable of continuously supplying high-pressure gas and low-pressure gas

Abstract

The utility model discloses a double-gas-path supply device capable of continuously supplying high-pressure gas and low-pressure gas, which comprises a first gas path supply pipe and a second gas path supply pipe, and each of the first gas path supply pipe and the second gas path supply pipe comprises a high-pressure gas supply section and a low-pressure gas supply section; the first gas path supply pipe and the second gas path supply pipe are arranged in parallel, the high-pressure gas supply sections of the two gas path supply pipes are both connected to the gas high-pressure side pressure reducing valve, and the low-pressure gas supply sections of the two gas path supply pipes are both connected to the gas low-pressure side pressure reducing valve. Safe supply of high-pressure gas and low-pressure gas is guaranteed by switching the two supply pipes, it is guaranteed that the on-site gas supply condition is not affected when the gas cylinder set is switched, and normal operation of on-site equipment is guaranteed; and after the high-pressure gas reaches the lower use limit, the high-pressure gas can be continuously supplied to a low-pressure system, so that the aims of reducing gas waste, ensuring production continuity, reducing operation cost and improving economic benefits are fulfilled.

Description

Technical Field

[0001] The utility model relates to the technical field of gas supply, in particular to a dual-gas-path supply device for uninterrupted supply of high- and low-pressure gases. Background Art

[0002] In modern industrial production, gas supply systems play a vital role and are widely used in various manufacturing and processing processes.

[0003] Gas supply systems are generally divided into high-pressure and low-pressure systems. High-pressure systems are primarily used for industrial equipment and processes requiring high energy, such as high back pressure, welding, and certain chemical reactions. Low-pressure systems, on the other hand, are used for general pneumatic equipment, cleaning, purging, and other auxiliary applications.

[0004] The current high-pressure and low-pressure gas supply systems are usually independent of each other in design and operation. The high-pressure gas supply system maintains a higher pressure after a first-stage pressure reduction and directly delivers it to equipment that requires high-pressure gas. The low-pressure gas supply system obtains gas from the high-pressure gas through a second-stage pressure reduction device to meet the needs of low-pressure equipment. Although this design can operate effectively in certain application scenarios, it also exposes some defects in actual operation. For example, the existing independent high-pressure and low-pressure gas supply systems have the following major problems:

[0005] 1. Gas waste: After high-pressure gas is used to a certain extent, its pressure gradually decreases. When the pressure drops to a critical value, the high-pressure system can no longer provide sufficient gas to the high-pressure equipment. At this point, the remaining gas, while still under pressure, cannot be used directly and is usually wasted.

[0006] 2. Production interruption: When the high-pressure gas supply system stops supplying gas due to insufficient pressure, it not only affects the normal operation of the high-pressure equipment, but also causes the low-pressure equipment to be unable to continue to obtain gas from the high-pressure system due to the need to replace the gas source, thus causing the entire production line to be interrupted.

[0007] 3. Increased costs: Due to gas waste and production interruptions, companies need to invest more resources to re-compress and store gas, or purchase new gas sources. These additional costs will significantly increase the company's operational burden.

[0008] In view of the shortcomings of the existing high- and low-pressure gas simultaneous supply solutions, it is particularly important to develop new gas supply solutions. Utility Model Content

[0009] The technical problem to be solved by the present invention is: how to provide a dual-gas supply device for continuously supplying high-pressure and low-pressure gases to reduce unnecessary gas loss.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0011] A dual gas supply device for uninterrupted supply of high and low pressure gases, comprising a first gas supply pipe and a second gas supply pipe, wherein the first gas supply pipe and the second gas supply pipe each comprise a high pressure gas supply section and a low pressure gas supply section;

[0012] The first gas supply pipe and the second gas supply pipe are arranged in parallel, the high-pressure gas supply sections of the two gas supply pipes are connected to the gas high-pressure side pressure reducing valve, and the low-pressure gas supply sections of the two gas supply pipes are connected to the gas low-pressure side pressure reducing valve.

[0013] By setting up two sets of parallel first gas supply pipes and second gas supply pipes, the present application can ensure the safe supply of high and low pressure gases by switching the two supply pipes, ensure that the gas supply situation on site is not affected when the gas cylinder group is switched, and ensure the normal operation of the on-site equipment; and each gas supply pipe includes a high-pressure gas supply section and a low-pressure gas supply section, so that after the high-pressure gas reaches the lower limit of use, it can continue to supply gas to the low-pressure system, thereby achieving the purpose of reducing gas waste, ensuring production continuity, reducing operating costs and improving economic benefits, bringing significant economic and environmental benefits to the enterprise.

[0014] As a further solution of the present invention: the first gas supply pipe also includes a bottle group 1 connected to the high-pressure gas supply section, the high-pressure gas supply section includes a one-way valve 1 connected to the bottle group 1 through an air pipe, the one-way valve 1 is connected to a high-pressure ball valve 1 through the air pipe, and the high-pressure ball valve 1 is further connected to the gas high-pressure side pressure reducing valve through the air pipe.

[0015] As a further solution of the present invention: the air pipe between the high-pressure ball valve 1 and the one-way valve 1 is connected to the gas low-pressure side pressure reducing valve through a low-pressure gas supply section.

[0016] As a further solution of the present invention: the low-pressure gas supply section includes a low-pressure side gas supply ball valve 1 connected to the air pipe between the high-pressure ball valve 1 and the one-way valve 1, and the low-pressure side gas supply ball valve 1 is further connected to the gas low-pressure side pressure reducing valve through the air pipe.

[0017] As a further solution of the present invention: the second gas supply pipe also includes a bottle group 2 connected to the high-pressure gas supply section, and the high-pressure gas supply section includes a one-way valve 2 connected to the bottle group 2 through an air pipe. The one-way valve 2 is connected to the high-pressure ball valve 2 through the air pipe, and the high-pressure ball valve 2 is further connected to the gas high-pressure side pressure reducing valve through the air pipe.

[0018] As a further solution of the present invention: the gas pipe between the second high-pressure ball valve and the second one-way valve is connected to the gas low-pressure side pressure reducing valve through a low-pressure gas supply section.

[0019] As a further solution of the present invention: the low-pressure gas supply section includes a low-pressure side gas supply ball valve 2 connected to the air pipe between the high-pressure ball valve 2 and the one-way valve 2, and the low-pressure side gas supply ball valve 2 is further connected to the gas low-pressure side pressure reducing valve through the air pipe.

[0020] As a further solution of the present invention: a pressure sensor and an emptying ball valve are installed on the air pipe of the bottle group 1 and the one-way valve 1, and the pressure sensor 1 is connected to a pressure monitoring and reminding device.

[0021] As a further solution of the present invention: a pressure sensor 2 and a drain ball valve 2 are installed on the air pipe between the second bottle group and the second one-way valve, and the second pressure sensor is connected to a pressure monitoring and reminding device.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. Saving gas resources: Each gas supply pipe in this application includes a high-pressure gas supply section and a low-pressure gas supply section. This allows the high-pressure gas to continue to supply the low-pressure system after reaching its lower limit, thereby reducing gas waste, ensuring production continuity, lowering operating costs, and improving economic efficiency, bringing significant economic and environmental benefits to the enterprise.

[0024] 2. Safe supply: This application provides multiple switching valve bodies, including ball valves, one-way valves, and ball valves for supplying gas, to ensure safe and smooth switching between high- and low-pressure gas supply systems, thereby preventing gas supply interruptions or safety accidents caused by operational errors.

[0025] 3. Real-time pressure monitoring: This application uses a pressure detection device consisting of pressure sensor 1 and pressure sensor 2 to monitor the gas pressure in the two pipelines in real time. When the gas pressure approaches the critical value, a prompt is issued to notify on-site personnel to switch the gas supply source in time to avoid production interruptions caused by insufficient gas pressure.

[0026] 4. Dual-path gas supply: This application designs a dual-path gas supply system to ensure uninterrupted gas supply on the other path when switching between gas cylinder group 1 and gas cylinder group 2, ensuring that on-site equipment is always in normal operation and improving production continuity and stability;

[0027] 5. Improve economic benefits: This application can reduce gas waste and production interruption time, reduce the company's operating costs, and improve the economic benefits of the production process;

[0028] 6. Easy to operate: This application can simplify the operation process by setting the system's intelligent control and automatic switching functions, reduce manual intervention, and improve the reliability and efficiency of system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the dual gas supply pipeline of the embodiment of the utility model;

[0030] Description of reference numerals:

[0031] 1. Gas high-pressure side pressure reducing valve; 2. High-pressure ball valve 1; 3. High-pressure ball valve 2; 4. One-way valve 1; 5. One-way valve 2; 6. Drain ball valve 1; 7. Drain ball valve 2; 8. Pressure sensor 1; 9. Pressure sensor 2; 10. Bottle group 1; 11. Bottle group 2; 12. Low-pressure side supply ball valve 2; 13. Low-pressure side supply ball valve 1; 14. Gas low-pressure side pressure reducing valve; 15. Pressure monitoring and reminder device. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] Reference Figure 1 A dual gas supply device for uninterrupted supply of high and low pressure gases comprises a first gas supply pipe and a second gas supply pipe, wherein the first gas supply pipe and the second gas supply pipe are arranged in parallel.

[0034] Reference Figure 1 The first gas supply pipe includes a bottle group 10 and a first high-pressure gas supply section and a first low-pressure gas supply section connected thereto. The first low-pressure gas supply section is connected to the first high-pressure gas supply section, wherein the first high-pressure gas supply section is connected to the gas high-pressure side pressure reducing valve 1, and the first low-pressure gas supply section is connected to the gas low-pressure side pressure reducing valve 14;

[0035] Furthermore, the first high-pressure gas supply section includes a one-way valve 4 and a high-pressure ball valve 2, wherein one end of the one-way valve 4 is connected to the bottle group 10 via an air circuit, and the other end of the one-way valve 4 is connected to the high-pressure ball valve 2 via an air circuit, and the other end of the high-pressure ball valve 2 is connected to the gas high-pressure side pressure reducing valve 1 via an air circuit. The gas high-pressure side pressure reducing valve 1 is connected to the equipment to be supplied with gas for high-pressure gas supply. It should be noted that a hose can be used for the gas circuit;

[0036] Furthermore, the first low-pressure gas supply section includes a low-pressure side gas supply ball valve 13, wherein one end of the low-pressure side gas supply ball valve 13 is connected to the gas path between the one-way valve 4 and the high-pressure ball valve 2, and the other end of the low-pressure side gas supply ball valve 13 is connected to the gas low-pressure side pressure reducing valve 14.

[0037] Furthermore, a pressure sensor 8 and an exhaust ball valve 6 are installed on the air circuit between the bottle group 10 and the one-way valve 4. The pressure sensor 8 is connected to the pressure monitoring and reminding device 15 through a cable. The pressure monitoring and reminding device 15 can be composed of a pressure recorder and an alarm. The pressure sensor 8 can send the monitored air circuit pressure to the pressure monitoring and reminding device 15. When the pressure monitoring and reminding device 15 finds that the pressure is not within the range, it can remind the staff by means of an alarm.

[0038] Reference Figure 1 The second gas supply pipe includes a second bottle group 11, a second high-pressure gas supply section, and a second low-pressure gas supply section. The second low-pressure gas supply section is connected to the second high-pressure gas supply section, wherein the second high-pressure gas supply section is connected to the gas high-pressure side pressure reducing valve 1, and the second low-pressure gas supply section is connected to the gas low-pressure side pressure reducing valve 14;

[0039] Furthermore, the second high-pressure gas supply section includes a one-way valve 2 5 and a high-pressure ball valve 2 3, wherein one end of the one-way valve 2 5 is connected to the bottle group 2 11 via an air circuit, and the other end of the one-way valve 2 5 is connected to the high-pressure ball valve 2 3 via an air circuit, and the other end of the high-pressure ball valve 2 3 is connected to the gas high-pressure side pressure reducing valve 1 via an air circuit. The gas high-pressure side pressure reducing valve 1 is connected to the equipment to be supplied with gas for high-pressure gas supply;

[0040] Furthermore, the second low-pressure gas supply section includes a low-pressure side gas supply ball valve 2 12, wherein one end of the low-pressure side gas supply ball valve 2 12 is connected to the gas path between the one-way valve 2 5 and the high-pressure ball valve 2 3, and the other end of the low-pressure side gas supply ball valve 2 12 is connected to the gas low-pressure side pressure reducing valve 14.

[0041] Furthermore, a pressure sensor 29 and an emptying ball valve 27 are installed on the air path between the bottle group 2 11 and the one-way valve 25. The pressure sensor 29 is connected to the pressure monitoring and reminding device 15 through a cable. The pressure sensor 29 can send the monitored air path pressure to the pressure monitoring and reminding device 15. When the pressure monitoring and reminding device 15 finds that the pressure is not within the range, it can remind the staff by means of an alarm.

[0042] The specific operating principles of this application are as follows:

[0043] Two gas-filled cylinders, group 10 and group 2 11, pass through Figure 1The installation is performed in the manner shown, and the specific operating principle is introduced by taking the gas in bottle group 10 as an example.

[0044] First, keep all valves in the system in a closed state, open the gas cylinder valve of bottle group 10, and the gas passes through the one-way valve 4. At this time, slowly open the high-pressure ball valve 2 of bottle group 10, and then the gas reaches the gas high-pressure side pressure reducing valve 1. By adjusting the opening of the pressure reducer of the gas high-pressure side pressure reducing valve 1, the pressure after the pressure reduction of the gas high-pressure side pressure reducing valve 1 is adjusted to 5MPa to meet the use requirements of the equipment that needs high-pressure gas. Then the gas passes through the gas high-pressure side pressure reducing valve 1 into the gas supply system or equipment to realize high-pressure gas supply;

[0045] At this time, open the low-pressure side supply ball valve 13, and then the gas reaches the front end of the low-pressure side gas reducing valve 14 after passing through the low-pressure side supply ball valve 13. By adjusting the opening of the pressure reducer of the low-pressure side gas reducing valve 14, the pressure after decompression of the low-pressure side gas reducing valve 14 is adjusted to 0.8MPa. At this time, the gas supply on the high-pressure side and the low-pressure side has been completed through the bottle group 10 combined with the gas supply system.

[0046] The current gas line pressure can be determined through pressure sensor 18. When pressure sensor 18 detects a pressure below 5 MPa, the pressure monitoring reminder device 15 will issue a prompt to inform on-site personnel that the current pressure of bottle group 10 is lower than the high-pressure gas usage requirement. At this time, the bottle valve of bottle group 11 can be opened, and the high-pressure gas passes through the one-way valve 25 and the high-pressure ball valve 23, and then through the gas high-pressure side pressure reducing valve 1 to continue supplying high-pressure gas to the system or equipment. At this time, the high-pressure ball valve 2 must also be closed to prevent excessive gas from passing through this valve and being supplied to the low-pressure side. The one-way valve 4 can prevent high-pressure gas from being filled into the lower-pressure bottle group 10 during the switching process.

[0047] As use continues, the pressure is continuously monitored through the pressure sensor 8. When the pressure is lower than 1MPa, the pressure monitoring reminder device 15 will issue a prompt to inform the on-site personnel that the pressure of the current bottle group 10 is lower than the low-pressure gas usage requirement and needs to be replaced. At this time, it is necessary to open the low-pressure side supply ball valve 2 12 and close the low-pressure side supply ball valve 13 at the same time. At this time, use the bottle group 2 11 to supply gas to both the high-pressure and low-pressure sides. After completing the switch, close the valve switch of the bottle group 10, open the drain ball valve 16 to drain the gas in the channel and then close it, remove the bottle group 10, and replace it with a new gas cylinder group. Subsequently, when the pressure of the bottle group 2 11 also reaches the critical pressure points of 5MPa and 1MPa, perform valve switching and gas cylinder replacement in the same manner as described above.

[0048] The valves in this control scheme can be adjusted to solenoid valves if the installation budget is sufficient, and automatic switching of high and low pressure gas supply can be achieved through automatic control.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dual gas supply device for uninterrupted supply of high and low pressure gases, characterized in that: The first gas supply pipe and the second gas supply pipe each include a high-pressure gas supply section and a low-pressure gas supply section. The first gas supply pipe and the second gas supply pipe are arranged in parallel, the high-pressure gas supply sections of the two gas supply pipes are connected to the gas high-pressure side pressure reducing valve (1), and the low-pressure gas supply sections of the two gas supply pipes are connected to the gas low-pressure side pressure reducing valve (14).

2. A dual gas supply device for uninterrupted supply of high and low pressure gases according to claim 1, characterized in that: The first gas supply pipe also includes a bottle group (10) connected to a high-pressure gas supply section, and the high-pressure gas supply section includes a one-way valve (4) connected to the bottle group (10) through an air pipe. The one-way valve (4) is connected to a high-pressure ball valve (2) through the air pipe, and the high-pressure ball valve (2) is further connected to the gas high-pressure side pressure reducing valve (1) through the air pipe.

3. A dual gas supply device for uninterrupted supply of high and low pressure gases according to claim 2, characterized in that: The gas pipe between the high-pressure ball valve 1 (2) and the one-way valve 1 (4) is connected to the gas low-pressure side pressure reducing valve (14) through a low-pressure gas supply section.

4. A dual gas supply device for uninterrupted supply of high and low pressure gases according to claim 3, characterized in that: The low-pressure gas supply section includes a low-pressure side gas supply ball valve (13) connected to the gas pipe between the high-pressure ball valve (2) and the one-way valve (4), and the low-pressure side gas supply ball valve (13) is further connected to the gas low-pressure side pressure reducing valve (14) through the gas pipe.

5. The dual-gas supply device for uninterrupted supply of high- and low-pressure gases according to claim 1, characterized in that: The second gas supply pipe further comprises a second bottle group (11) connected to a high-pressure gas supply section, the high-pressure gas supply section comprises a second one-way valve (5) connected to the second bottle group (11) via an air pipe, the second one-way valve (5) is further connected to a second high-pressure ball valve (3) via an air pipe, and the second high-pressure ball valve (3) is further connected to a gas high-pressure side pressure reducing valve (1) via an air pipe.

6. A dual gas supply device for uninterrupted supply of high and low pressure gases according to claim 5, characterized in that: The gas pipe between the second high-pressure ball valve (3) and the second one-way valve (5) is connected to the gas low-pressure side pressure reducing valve (14) through a low-pressure gas supply section.

7. A dual gas supply device for uninterrupted supply of high and low pressure gases according to claim 6, characterized in that: The low-pressure gas supply section includes a low-pressure side gas supply ball valve 2 (12) connected to the gas pipe between the high-pressure ball valve 2 (3) and the one-way valve 2 (5), and the low-pressure side gas supply ball valve 2 (12) is further connected to the gas low-pressure side pressure reducing valve (14) through the gas pipe.

8. The dual-gas supply device for uninterrupted supply of high- and low-pressure gases according to claim 2, characterized in that: A pressure sensor (8) and an exhaust ball valve (6) are installed on the air pipe between the bottle group (10) and the one-way valve (4), and the pressure sensor (8) is connected to the pressure monitoring and reminding device (15).

9. The dual-gas supply device for uninterrupted supply of high- and low-pressure gases according to claim 5, characterized in that: A pressure sensor 2 (9) and an emptying ball valve 2 (7) are installed on the air pipe between the bottle group 2 (11) and the one-way valve 2 (5), and the pressure sensor 2 (9) is connected to the pressure monitoring reminder device (15).

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