Gas supply system

Abstract

The utility model discloses an air supply system, and belongs to the technical field of compressed air pipelines. The gas supply system comprises a first distributor, a second distributor, a communicating pipe, a first flow meter and a control valve. The two distributors are communicated through the communicating pipe, and the two independent compressed air systems which are provided with the first distributor and the second distributor respectively are communicated. After the first flow meter detects that the flow rate of the airflow flowing out of the second distributor is larger than the first preset flow rate, the compressed air in the first distributor is supplied to a compressed air system (namely a low-pressure compressed air system) provided with the second distributor for use by adjusting the regulation and control valve, and low-pressure compressed air system equipment does not need to be additionally started; the number of operation equipment of the low-pressure compressed air system can be reduced within a certain range, so that the energy-saving effect is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of compressed air pipelines, and in particular to an air supply system. Background Art

[0002] Compressed air is clean, safe, easy to store and transport. The compressed air system provides compressed air with different air quality requirements for instrumentation, maintenance, material transportation, bag backblowing and other professional uses in the factory.

[0003] At present, the high-pressure and low-pressure compressed air systems of factories are operated independently of each other. Several high-pressure air compressors form a high-pressure compressed air system, and several low-pressure air compressors form a low-pressure compressed air system. Due to the limitations of equipment capacity configuration, it is almost impossible for the compressed air supply to completely match the actual air consumption when the high-pressure system or the low-pressure system is running. In order to maintain the stability of the system pressure, some air compressors appear (discharging excess compressed air) or idling (the motor runs but does not produce compressed air).

[0004] However, the above process is bound to cause waste of energy. Utility Model Content

[0005] The embodiment of the present application provides an air supply system, which can solve the problem of energy waste in the compressed air system in the prior art. The technical solution is as follows:

[0006] In one aspect, a gas supply system is provided, the gas supply system comprising:

[0007] A first distributor, a second distributor, a connecting pipe, a first flow meter and a regulating valve;

[0008] The first distributor and the second distributor are both used to store compressed gas, and the pressure of the gas stored in the first distributor is a first pressure, and the pressure of the gas stored in the second distributor is a second pressure, and the first pressure is greater than the second pressure;

[0009] Two ends of the connecting pipe are respectively connected to the first distributor and the second distributor;

[0010] The first flow meter is installed on the second distributor, and the regulating valve is installed on the connecting pipe;

[0011] Among them, after the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, the connecting pipe is opened through the regulating valve to allow the gas stored in the first distributor to flow into the second distributor through the connecting pipe.

[0012] Optionally, the regulating valve includes: a valve installed inside the connecting pipe, and a control unit located outside the connecting pipe and connected to the valve; the control unit is used to: adjust the opening of the valve to adjust the flow rate of the airflow flowing from the first distributor to the second distributor.

[0013] Optionally, the regulating valve also includes: a pressure regulating unit installed inside the connecting pipe, the pressure regulating unit being connected to the control unit; the control unit is also used to: reduce the pressure of the airflow flowing from the first distributor to the second distributor through the pressure regulating unit so that the pressure of the airflow flowing to the second distributor is equal to the pressure of the gas stored in the second distributor.

[0014] Optionally, the gas supply system further comprises: a second flow meter, wherein the second flow meter is installed on the first distributor;

[0015] Among them, after the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, and the second flow meter detects that the air flow rate flowing out of the first distributor is less than the second preset flow rate, the connecting pipe is opened through the regulating valve to allow the gas stored in the first distributor to flow into the second distributor through the connecting pipe.

[0016] Optionally, the gas supply system also includes: a third flow meter, which is installed on the connecting pipe, the third flow meter is located between the regulating valve and the second distributor, and the third flow meter is used to determine the flow rate of the airflow flowing from the first distributor to the second distributor.

[0017] Optionally, the gas supply system further includes:

[0018] A first switch butterfly valve installed on the connecting pipe, wherein the first switch butterfly valve is located between the regulating valve and the first distributor;

[0019] And / or, a second on-off butterfly valve installed on the connecting pipe, wherein the second on-off butterfly valve is located between the third flow meter and the second distributor.

[0020] Optionally, the gas supply system further includes: a control device, wherein the control device is communicatively connected to the regulating valve and the first flow meter respectively.

[0021] Optionally, the air supply system further includes: at least one first compressor connected to the first distributor, and at least one second compressor connected to the second distributor.

[0022] Optionally, the gas supply system further comprises: at least one first pipeline, at least one second pipeline, a third pipeline and a fourth pipeline;

[0023] The at least one first pipeline corresponds to the at least one first compressor, one end of the first pipeline is connected to the corresponding first compressor, one end of the third pipeline is connected to the first distributor, and the other end of the at least one first pipeline is connected to the third pipeline;

[0024] The at least one second pipeline corresponds to the at least one second compressor, one end of the second pipeline is connected to the corresponding second compressor, one end of the fourth pipeline is connected to the second distributor, and the other end of the at least one second pipeline is connected to the fourth pipeline.

[0025] Optionally, the number of the second compressors is greater than the number of the first compressors.

[0026] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0027] A gas supply system may include: a first distributor, a second distributor, a connecting pipe, a first flow meter and a regulating valve. The two distributors are connected by setting a connecting pipe, and two independent compressed air systems respectively equipped with the first distributor and the second distributor are connected. After the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, the compressed gas in the first distributor is supplied to the compressed air system (i.e., the low-pressure compressed air system) equipped with the second distributor by adjusting the regulating valve, without the need to add additional low-pressure compressed air system equipment, and the number of low-pressure compressed air system operating equipment can be reduced within a certain range to achieve energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 is a structural schematic diagram of a gas supply system provided in an embodiment of the present application;

[0030] Figure 2 is a structural schematic diagram of another gas supply system provided in an embodiment of the present application;

[0031] Figure 3 is a structural block diagram of a gas supply system provided in an embodiment of the present application;

[0032] Figure 4 It is a partial structural schematic diagram of a gas supply system provided in an embodiment of the present application;

[0033] Figure 5 It is a structural block diagram of another gas supply system provided in an embodiment of the present application.

[0034] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0036] Please refer to Figure 1 , Figure 1 000 is a schematic diagram of a gas supply system provided in an embodiment of the present application. The gas supply system 000 may include: a first distributor 100, a second distributor 200, a connecting pipe 300, a first flow meter 400 and a control valve 500.

[0037] The first distributor 100 and the second distributor 200 in the gas supply system 000 can both be used to store compressed gas, and the pressure of the gas stored in the first distributor 100 can be a first pressure, and the pressure of the gas stored in the second distributor 200 can be a second pressure, and the first pressure can be greater than the second pressure. Here, the compressed air system equipped with the first distributor 100 can be a high-pressure compressed air system, and the compressed air system equipped with the second distributor 200 can be a low-pressure compressed air system.

[0038] Both ends of the connecting pipe 300 in the gas supply system can be connected to the first distributor 100 and the second distributor 200 respectively, so as to connect the two distributors.

[0039] The first flow meter 400 in the gas supply system 000 can be installed on the second distributor 200, and the control valve 500 in the gas supply system 000 can be installed on the connecting pipe 300. Here, the opening of the control valve 500 can be used to control the flow rate of the gas flowing from the first distributor 100 to the second distributor 200 through the connecting pipe 300.

[0040] Among them, after the first flow meter 400 detects that the air flow rate flowing out of the second distributor 200 is greater than the first preset flow rate, the connecting pipe 300 is connected through the regulating valve 500, so that the gas stored in the first distributor 100 can flow into the second distributor 200 through the connecting pipe 300. It should be noted that in actual applications, the use flow rate of low-pressure compressed air is usually greater than the first preset flow rate, and the use demand of low-pressure compressed air is usually greater than the use demand of high-pressure compressed air. Within a certain use flow range, the high-pressure compressed air generated by the high-pressure compressed air system can be decompressed and supplied to the low-pressure compressed air system for use, thereby reducing the number of low-pressure air compression equipment in the low-pressure compressed air system that are turned on.

[0041] In the embodiment of the present application, two distributors are connected by setting a connecting pipe 300 to connect two independent compressed air systems equipped with a first distributor 100 and a second distributor 200, respectively. After the first flow meter 400 detects that the airflow rate flowing out of the second distributor 200 is greater than the first preset flow rate, the compressed gas in the first distributor 100 is supplied to the compressed air system (i.e., the low-pressure compressed air system) equipped with the second distributor 200 by adjusting the control valve 500, without the need to add additional low-pressure compressed air system equipment, and the number of low-pressure compressed air system operating equipment can be reduced within a certain range to achieve energy saving (such as the power required for the compression equipment). It should be noted that the flow direction of the compressed air can be from the high-pressure system to the low-pressure system, that is, after adjusting the control valve 500 to connect the two distributors with the connecting pipe 300, the high-pressure gas stored in the first distributor 100 can be reduced in pressure by the control valve 500 and flow to the second distributor 200 for use by the low-pressure compressed air system.

[0042] In a possible implementation, the first distributor 100 may have a plurality of first distribution outlets 101, and the second distributor 200 may have a plurality of second distribution outlets 201. The two ends of the connecting pipe 300 in the gas supply system 000 may be connected to a first distribution outlet 101 in the first distributor 100 and a second distribution outlet 201 in the second distributor 200, respectively. Here, the other first distribution outlets 101 in the first distributor 100 may be used for the back-end equipment alone, and the other second distribution outlets 201 in the second distributor 200 may be used for the back-end equipment alone. In this way, there is no need to open a gas flow port for connecting the end of the connecting pipe on the distributor alone, which is convenient for operators to install and use.

[0043] In summary, an embodiment of the present application provides an air supply system, which may include: a first distributor, a second distributor, a connecting pipe, a first flow meter and a control valve. The two distributors are connected by setting a connecting pipe to connect two independent compressed air systems respectively equipped with the first distributor and the second distributor. After the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, the compressed gas in the first distributor is supplied to the compressed air system (i.e., the low-pressure compressed air system) equipped with the second distributor by adjusting the control valve. There is no need to add additional low-pressure compressed air system equipment, and the number of low-pressure compressed air system operating equipment can be reduced within a certain range to achieve energy-saving effects.

[0044] Optional, please refer to Figure 2 , Figure 2 It is a structural schematic diagram of another air supply system provided in an embodiment of the present application. The air supply system 000 may also include: at least one first compressor 600 connected to the first distributor 100, and at least one second compressor 700 connected to the second distributor 200. For example, the number of second compressors 700 may be greater than the number of first compressors 600, and the number of compressors shown in the figure is only a schematic illustration. Among them, the first compressor 600 can be used to compress the air to a first target pressure value and then deliver the compressed air to the first distributor 100; the second compressor 700 can be used to compress the air to a second target pressure value and then deliver the compressed air to the second distributor 200, and the first target pressure value is greater than the second target pressure value. For example, in the case where the air supply system has a large capacity, the usage of the compressed air of the high-pressure compressed air system can be 21000-24000m 3 / h, the pressure value of the air compressed by the high-pressure compressed air system (the first target pressure value) is usually 7 bar; the usage of the air compressed by the low-pressure compressed air system can be 150000-170000m 3 / h, the pressure value of the air compressed by the low-pressure compressed air system (the second target pressure value) is usually 5 bar. The gas production capacity of each of the first compressor 600 and the second compressor 700 can be 15000m 3 / h.

[0045] In the embodiments of the present application, Figure 2As shown, the air supply system 000 may further include: at least one first pipeline 800, at least one second pipeline 900, a third pipeline 1000 and a fourth pipeline 1100. The at least one first pipeline 800 corresponds to the at least one first compressor 600, one end of each first pipeline 800 may be communicated with the corresponding first compressor 600, one end of the third pipeline 1000 may be communicated with the first distributor 100, and the other end of the at least one first pipeline 800 may be communicated with the third pipeline 1000. The at least one second pipeline 900 may correspond to the at least one second compressor 700, one end of each second pipeline 900 may be communicated with the corresponding second compressor 700, one end of the fourth pipeline 1100 may be communicated with the second distributor 200, and the other end of the at least one second pipeline 900 may be communicated with the fourth pipeline 1100. In this case, by connecting one end of the third pipe 1000 to the first distributor 100, one end of each first pipe 800 to the corresponding first compressor 600, and the other end of each first pipe 800 to the third pipe 1000, the first compressor 600 can be connected to the first distributor 100. In addition, by connecting one end of the fourth pipe 1100 to the second distributor 200, one end of each second pipe 900 to the corresponding second compressor 700, and the other end of each second pipe 700 can be connected to the fourth pipe 1100, the second compressor 700 can be connected to the second distributor 200.

[0046] Optional, please refer to Figure 3 , Figure 3 It is a structural block diagram of an air supply system provided by an embodiment of the present application. The air supply system 000 may also include: a first filter component 1200 and a second filter component 1300, the first filter component 1200 may be respectively connected to at least one first compressor 600 and the first distributor 100, and the second filter component 1300 may be respectively connected to at least one second compressor 700 and the second distributor 200. In this way, the compressed air generated by the first compressor 600 is filtered by the first filter component 1200 and then delivered to the first distributor 100, ensuring that the air entering the first distributor 100 is mixed with fewer impurity particles, ensuring the reliability of the supply back-end use. In addition, the compressed air generated by the second compressor 700 is filtered by the second filter component 1300 and then delivered to the second distributor 200, ensuring that the air entering the second distributor 200 is mixed with fewer impurity particles, ensuring the reliability of the supply back-end use.

[0047] Optional, please refer to Figure 4 , Figure 4It is a partial structural diagram of a gas supply system provided in an embodiment of the present application. The regulating valve 500 in the gas supply system 000 may include: a valve 501 installed inside the connecting pipe 300, and a control unit 502 located outside the connecting pipe 300 and connectable to the valve 501. The control unit 502 may be used to: adjust the opening of the valve 501 to adjust the flow rate of the gas flowing from the first distributor 100 to the second distributor 200. In this case, according to the required flow gap of the low-pressure compressed air system, the flow rate of the gas flowing from the first distributor 100 to the second distributor 200 may be adjusted by adjusting the opening of the valve 501 by the control unit 502 in the regulating valve 500.

[0048] In the embodiment of the present application, the control valve 500 in the gas supply system 000 may also include: a pressure regulating part (not shown in the figure) installed inside the connecting pipe 300, which may be connected to the control part 502. The control part in the control valve 500 may also be used to: reduce the pressure of the gas flowing from the first distributor 100 to the second distributor 200 through the pressure regulating part, so that the pressure of the gas flowing to the second distributor 200 may be equal to the pressure of the gas stored in the second distributor 200. Here, the control valve 500 in the gas supply system 000 may have two functions, one of which is to reduce the pressure of the high-pressure gas to form a low-pressure gas, so as to ensure the pressure stability of the low-pressure compressed air system. It should be noted that the low-pressure compressed air system is a system including components such as the second compressor 700, the second distributor 200 and the first flowmeter 400. Another function is to adjust the flow rate of the airflow, and control the opening of the control valve 500 according to the flow gap required by the low-pressure compressed air system. For example, the model of the control valve 500 may be Azbil KZ03-2B / AGVB.

[0049] In the embodiments of the present application, Figure 2 As shown, the air supply system 000 may also include: a second flow meter 1400, which may be installed on the first distributor 100. After the first flow meter 400 detects that the air flow rate flowing out of the second distributor 200 is greater than the first preset flow rate, and the second flow meter 1400 detects that the air flow rate flowing out of the first distributor 100 is less than the second preset flow rate, the connecting pipe 300 is connected through the regulating valve 500, so that the gas stored in the first distributor 100 flows into the second distributor 200 through the connecting pipe 300. Here, the first compressor 600, the first distributor 100 and the second flow meter 1400 constitute a high-pressure compressed air system, and the second flow meter 1400 installed on the first distributor 100 can detect the usage flow rate of the gas in the first distributor 100. As can be seen from the above, for the usage of high-pressure compressed gas, if the usage flow rate of the air compressed by the high-pressure compressed air system is 21000-24000m 3 / h. According to the gas production of a single first compressor 600, the high-pressure compressed air system usually requires two first compressors 600 to operate, and the gas volume of the high-pressure compressed gas produced can be 30000m 3 / h, then it can be 6000-9000m 3 / h margin; for the use flow of low-pressure compressed gas, if the use volume of compressed air in the low-pressure compressed air system is 150000-170000m 3 / h, according to the gas output of a single second compressor 700, the low-pressure compressed air system usually requires 10-12 second compressors to operate. However, if 10 or 11 second compressors are used, the gas output may be insufficient when the gas consumption fluctuates, resulting in unstable pressure in the low-pressure compressed air system; if 12 second compressors are used, the gas output is large and wasteful, which may cause up to 30,000m 3 / h waste. In this case, through the cooperation of the connecting pipe 300 and the regulating valve 500, the excess gas in the high-pressure compressed air system can be supplied to the low-pressure compressed air system, avoiding the waste of emptying the high-pressure compressed air system and reducing the number of running equipment in the low-pressure compressed air system within a certain range to achieve energy saving. For example, when the low-pressure compressed air system runs 10 equipment, the theoretical gas production can be 150,000m 3 / h, if the gas consumption increases to 155000m 3 / h or less, no new equipment is required. It should be noted that the second preset flow rate may be less than or equal to the actual use flow rate of the high-pressure compressed air.

[0050] Optional, such as Figure 2 and Figure 4 As shown, the gas supply system 000 may also include: a third flow meter 1500, which may be installed on the connecting pipe 300 in the gas supply system 000, and the third flow meter 1500 may be located between the control valve 500 and the second distributor 200, and the third flow meter 1500 may be used to determine the flow rate of the gas flowing from the first distributor 100 to the second distributor 200. In this case, by installing the third flow meter 1500 on the connecting pipe 300, the operator can monitor the flow rate of the gas flowing from the first distributor 100 to the second distributor 200 in real time through the third flow meter 1500, so that the operator can control the conduction and closing of the two distributors according to actual use requirements. In the present application, the models of the first flow meter 400, the second flow meter 1400 and the third flow meter 1500 can all be thermal mass flow meters EE776-CH2N100DA1 / RI6IMA.

[0051] In the embodiments of the present application, Figure 2As shown, the gas supply system 000 may further include: a first switch butterfly valve 1600 installed on the connecting pipe 300, and the first switch butterfly valve 1600 may be located between the regulating valve 500 and the first distributor 100. And / or, a second switch butterfly valve 1700 installed on the connecting pipe 300, and the second switch butterfly valve 1700 may be located between the third flow meter 1500 and the second distributor 200. It should be noted that the figure shows the case where both the first switch butterfly valve 1600 and the second switch butterfly valve 1700 are provided in the gas supply system 000. In this case, by installing the first switch butterfly valve 1600 on the connecting pipe 300 and arranging the first switch butterfly valve 1600 between the regulating valve 500 and the first distributor 100, the first switch butterfly valve 1600 can control the opening and closing of the first distributor 100 and the connecting pipe 300, thereby ensuring the safety and stability of the gas supply system 000. In addition, by installing the second switch butterfly valve 1700 on the connecting pipe 300 and arranging the second switch butterfly valve 1700 between the third flow meter 1500 and the second distributor 200, the second switch butterfly valve 1700 can control the opening and closing of the second distributor 200 and the connecting pipe 300, thereby ensuring the safety and stability of the gas supply system 000. Here, the first switch butterfly valve 1600 and the second switch butterfly valve 1700 can both be butterfly valve Bray DN100.

[0052] Optional, please refer to 5. Figure 5 It is a structural block diagram of another gas supply system provided in an embodiment of the present application. The gas supply system 000 may also include: a control device 1800, which may be respectively connected to the control valve 500 and the first flow meter 400 for communication. In the present application, the control device 1800 may be a host computer, and an operator may control the opening of the control valve 500 on the display interface 1801 of the host computer, and the flow value of the first flow meter 400 may be displayed on the display interface 1801 of the host computer for the operator to view. It should be noted that the second flow meter 1400 and the third flow meter 1500 in the gas supply system 000 may also be connected to the control device 1800 for communication.

[0053] In summary, an embodiment of the present application provides an air supply system, which may include: a first distributor, a second distributor, a connecting pipe, a first flow meter and a regulating valve. The two distributors are connected by setting a connecting pipe, and two independent compressed air systems respectively equipped with the first distributor and the second distributor are connected. After the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, the compressed gas in the first distributor is supplied to the compressed air system (i.e., the low-pressure compressed air system) equipped with the second distributor by adjusting the regulating valve. There is no need to add additional low-pressure compressed air system equipment, and the number of low-pressure compressed air system operating equipment can be reduced within a certain range to achieve energy-saving effects.

[0054] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0055] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0056] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gas supply system, characterized in that: include: A first distributor, a second distributor, a connecting pipe, a first flow meter and a regulating valve; The first distributor and the second distributor are both used to store compressed gas, and the pressure of the gas stored in the first distributor is a first pressure, and the pressure of the gas stored in the second distributor is a second pressure, and the first pressure is greater than the second pressure; Two ends of the connecting pipe are respectively connected to the first distributor and the second distributor; The first flow meter is installed on the second distributor, and the regulating valve is installed on the connecting pipe; Among them, after the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, the connecting pipe is opened through the regulating valve to allow the gas stored in the first distributor to flow into the second distributor through the connecting pipe.

2. The gas supply system according to claim 1, characterized in that: The regulating valve includes: a valve installed inside the connecting pipe, and a control unit located outside the connecting pipe and connected to the valve; the control unit is used to: adjust the opening of the valve to adjust the flow rate of the airflow flowing from the first distributor to the second distributor.

3. The gas supply system according to claim 2, characterized in that: The regulating valve also includes: a pressure regulating part installed inside the connecting pipe, and the pressure regulating part is connected to the control part; the control part is also used to: reduce the pressure of the airflow flowing from the first distributor to the second distributor through the pressure regulating part so that the pressure of the airflow flowing to the second distributor is equal to the pressure of the gas stored in the second distributor.

4. The gas supply system according to claim 1, characterized in that: The gas supply system further includes: a second flow meter, the second flow meter being mounted on the first distributor; Among them, after the first flow meter detects that the air flow rate flowing out of the second distributor is greater than the first preset flow rate, and the second flow meter detects that the air flow rate flowing out of the first distributor is less than the second preset flow rate, the connecting pipe is opened through the regulating valve to allow the gas stored in the first distributor to flow into the second distributor through the connecting pipe.

5. The gas supply system according to any one of claims 1 to 4, characterized in that: The gas supply system also includes: a third flow meter, which is installed on the connecting pipe, located between the control valve and the second distributor, and is used to determine the flow rate of the airflow flowing from the first distributor to the second distributor.

6. The gas supply system according to claim 5, characterized in that: The gas supply system also includes: A first switch butterfly valve installed on the connecting pipe, wherein the first switch butterfly valve is located between the regulating valve and the first distributor; And / or, a second on-off butterfly valve installed on the connecting pipe, wherein the second on-off butterfly valve is located between the third flow meter and the second distributor.

7. The gas supply system according to any one of claims 1 to 4, characterized in that: The gas supply system further includes: a control device, which is communicatively connected with the regulating valve and the first flow meter respectively.

8. The gas supply system according to any one of claims 1 to 4, characterized in that: The air supply system further includes: at least one first compressor connected to the first distributor, and at least one second compressor connected to the second distributor.

9. The gas supply system according to claim 8, characterized in that: The gas supply system further comprises: at least one first pipeline, at least one second pipeline, a third pipeline and a fourth pipeline; The at least one first pipeline corresponds to the at least one first compressor, one end of the first pipeline is connected to the corresponding first compressor, one end of the third pipeline is connected to the first distributor, and the other end of the at least one first pipeline is connected to the third pipeline; The at least one second pipeline corresponds to the at least one second compressor, one end of the second pipeline is connected to the corresponding second compressor, one end of the fourth pipeline is connected to the second distributor, and the other end of the at least one second pipeline is connected to the fourth pipeline.

10. The gas supply system according to claim 8, characterized in that: The number of the second compressors is greater than the number of the first compressors.

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