Air compressor parallel air supply system and factory workshop

By designing the parallel gas supply system of air compressors, the sharing of high-pressure gas between air compressors is achieved, and the production shutdown caused by the failure of the existing technology air compressor is solved, and the risk resistance and production efficiency of the factory workshop are improved.

CN222513942UActive Publication Date: 2025-02-21BEIJING BENZ
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Patent Information

Application Number
CN202421068306.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2025-02-21
Estimated Expiration
2034-05-16

AI Technical Summary

Technical Problem

In existing factory workshops, high-pressure gases between air compressors cannot be shared with each other, resulting in high downtime rates and low production efficiency. The failure of a single air compressor will cause the entire factory workshop to be shut down.

Method used

Design a parallel air supply system for air compressors, including air supply pipes, annular pipelines, filters, parallel branch pipes and switching valves, to realize the sharing of high-pressure gases generated by different air compressors, and to monitor air pressure through operating status sensors machine status.

Benefits of technology

The high-pressure gas generated by different air compressors is realized, which reduces the risk of production line shutdown caused by the failure of a single air compressor, improves the risk resistance of equipment and factory workshops, and reduces construction costs.

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Abstract

The utility model discloses an air compressor parallel air supply system and a factory workshop, the air compressor parallel air supply system comprises an air supply pipeline and an annular pipe network, the air supply pipeline is communicated with the annular pipe network; the first filter is arranged on the air supply pipeline; the plurality of devices to be supercharged are respectively communicated with the annular pipe network through a plurality of connecting pipes; the plurality of air compressors are respectively arranged on the plurality of connecting pipes; the at least one parallel branch pipe is arranged between the connecting pipes and is communicated with the connecting pipes; and the at least one switching valve is arranged on the parallel branch pipe corresponding to the parallel branch pipe. According to the air compressor parallel air supply system and the factory workshop provided by the utility model, high-pressure air generated by different air compressors can be shared by different equipment, so that the shutdown risk of a production line caused by the fault of a single air compressor is reduced, and the risk resistance of the equipment and the factory workshop is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of air supply systems, and in particular to an air compressor parallel air supply system and a factory workshop. Background Art

[0002] Modern factory workshops are usually equipped with air compressors to provide stable high-pressure gas to equipment that requires pressurization, thereby meeting the needs of various equipment and processes in the factory workshop, while driving various pneumatic tools and equipment to improve production efficiency and product quality. However, existing factory workshops generally use a 1:1 method to configure an air compressor for each device that requires pressurization, and the high-pressure gases generated by different air compressors cannot be shared with each other. If a single air compressor fails, the corresponding equipment that requires pressurization will not be able to operate, and it may even cause the entire factory workshop to shut down and the upstream process to be blocked, seriously reducing the production efficiency of the factory workshop.

[0003] In view of this, it is necessary to design an air compressor parallel air supply system and factory workshop, so that the high-pressure gas generated by different air compressors can be shared by different equipment. Even if one air compressor fails, the high-pressure gas generated by other air compressors can still maintain the normal operation of various equipment and factory workshops, thereby reducing the risk of production line shutdown caused by the failure of a single air compressor and improving the risk resistance of equipment and factory workshops. Utility Model Content

[0004] The utility model aims to provide an air compressor parallel air supply system and a factory workshop, so as to solve the problem that high-pressure gases generated by different air compressors cannot be shared with each other, resulting in a high downtime rate and low production efficiency of equipment requiring pressurization in the factory workshop.

[0005] To achieve the above-mentioned purpose, the utility model provides an air compressor parallel air supply system, including: an air supply pipeline and an annular pipe network, the air supply pipeline is connected to the annular pipe network; a first filter is arranged on the air supply pipeline; a plurality of equipment to be pressurized are respectively connected to the annular pipe network through a plurality of connecting pipes; a plurality of air compressors are respectively arranged on a plurality of connecting pipes. The air compressor parallel air supply system also includes: at least one parallel branch pipe, which is arranged between the connecting pipes and connected to the connecting pipes; and at least one switching valve, which is arranged on the parallel branch pipe corresponding to the parallel branch pipe.

[0006] By adopting the technical solution disclosed in the utility model, high-pressure gases generated by different air compressors can be shared by different equipment, thereby reducing the risk of production line shutdown due to failure of a single air compressor and improving the risk resistance of equipment and factory workshops.

[0007] The above-mentioned air compressor parallel air supply system has multiple parallel branch pipes and multiple switching valves.

[0008] The above-mentioned air compressor parallel air supply system also includes: at least one pressure relief pipe, which is connected to the connecting pipe and the parallel branch pipe; and at least one pressure relief valve, which is arranged on the pressure relief pipe corresponding to the pressure relief pipe.

[0009] The above-mentioned air compressor parallel air supply system also includes a plurality of second filters, which are respectively arranged on a plurality of connecting pipes and located between the equipment to be pressurized and the parallel branch pipes.

[0010] In the above-mentioned air compressor parallel air supply system, the air compressor is provided with an operation status sensor.

[0011] In the above-mentioned air compressor parallel air supply system, the operating status sensor is a stroke monitoring sensor and / or a vibration sensor.

[0012] The above-mentioned air compressor parallel air supply system also includes: a plurality of first inspection valves, which are respectively arranged on a plurality of connecting pipes and located between the air compressor and the annular pipe network; and a plurality of second inspection valves, which are respectively arranged on a plurality of connecting pipes and located between the air compressor and the parallel branch pipes.

[0013] In the above-mentioned air compressor parallel air supply system, the switching valve, the first inspection valve and the second inspection valve are ball valves.

[0014] In the above-mentioned air compressor parallel air supply system, the air compressor is a piston type air compressor.

[0015] In order to better achieve the purpose of the utility model, the utility model also provides a factory workshop, which is equipped with the air compressor parallel air supply system as described above.

[0016] Of course, the factory workshop provided by the utility model corresponds to the above-mentioned air compressor parallel air supply system, and the beneficial technical effects are the same as above.

[0017] In order to have a better understanding of the above and other aspects of the present invention, embodiments are given below and described in detail with reference to the accompanying drawings, but they are not intended to limit the scope of patent protection of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of an air compressor parallel air supply system according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic structural diagram of an air compressor parallel air supply system according to another embodiment of the utility model.

[0020] Figure 3 The present invention is a schematic structural diagram of an air compressor parallel air supply system according to another embodiment of the present invention.

[0021] Wherein, the reference numerals are:

[0022] 100, 200, 300 - Air compressor parallel supply system

[0023] 1 - Air supply pipe

[0024] 2 - Ring network

[0025] 3 - First filter

[0026] 4 - Equipment to be pressurized

[0027] 5 - Connecting pipe

[0028] 51 - First service valve

[0029] 52 - Second service valve

[0030] 6 - Air compressor

[0031] 7 - Parallel branches

[0032] 71 - Switching valve

[0033] 8 - Pressure relief pipe

[0034] 81 - Pressure relief valve

[0035] 9 - Second filter DETAILED DESCRIPTION

[0036] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and beneficial technical effects of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0037] It should be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0038] Certain words are used in the specification and the appended claims to refer to specific elements or components. It should be understood by those skilled in the art that technical users or manufacturers may refer to the same element or component by different nouns or terms. This specification and the appended claims do not distinguish elements or components by differences in names, but by differences in functions of elements or components. In addition, the word "connection" herein includes any direct and indirect means of connection. Indirect means of connection include connection through other devices.

[0039] In addition, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "approximately", or "approximately", "substantially", "left and right" and the like indicating directions or positional relationships or parameters are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the referred device or element must have a specific direction, specific size, or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] The core of the utility model is to provide an air compressor parallel air supply system and a factory workshop, which can enable the high-pressure gas generated by different air compressors to be shared by different equipment, thereby reducing the risk of production line shutdown caused by the failure of a single air compressor and improving the risk resistance of equipment and factory workshops.

[0041] See also Figure 1 , Figure 1 The present invention is a schematic structural diagram of an air compressor parallel air supply system according to an embodiment of the present invention.

[0042] The utility model provides an air compressor parallel air supply system 100, comprising: an air supply pipeline 1 and an annular pipe network 2, the air supply pipeline 1 is connected to the annular pipe network 2; a first filter 3 is arranged on the air supply pipeline 1; a plurality of pressurized equipment 4 are respectively connected to the annular pipe network 2 through a plurality of connecting pipes 5; a plurality of air compressors 6 are respectively arranged on the plurality of connecting pipes 5. The air compressor parallel air supply system 100 also includes: at least one parallel branch pipe 7, which is arranged between the connecting pipes 5 and connected to the connecting pipes 5; and at least one switching valve 71, which is arranged on the parallel branch pipe 7 corresponding to the parallel branch pipe 7.

[0043] In a specific embodiment, the utility model provides an air compressor parallel air supply system 100 for use in a paint shop, and the equipment to be pressurized 4 is a paint spraying robot. There are two equipment to be pressurized 4, two air compressors 6, two connecting pipes 5, and one parallel branch pipe 7 and one switching valve 71. Figure 1As shown, the air supply pipeline 1 is connected to the annular pipe network 2 to deliver the compressed air supplied by the air compressor station to the annular pipe network 2 through the air supply pipeline 1. The first filter 3 is arranged on the air supply pipeline 1 to remove oil and dust from the compressed air, and reduce the impurity content in the compressed air entering the annular pipe network and the air compressor. Further, the filtration accuracy of the first filter 3 is 0.01μm, and the oil removal accuracy is 0.008ppm, but the utility model is not limited to this. A device to be pressurized 4 is respectively arranged on both sides of the annular pipe network 2, and the device to be pressurized 4 is connected to the annular pipe network 2 through a connecting pipe 5. An air compressor 6 is arranged on each of the two connecting pipes 5, and the air compressor 6 is a piston air compressor, but the utility model is not limited to this. When the compressed air enters the annular pipe network 2, it will continue to be delivered to the device to be pressurized 4 through the connecting pipe 5, and the air compressor 6 arranged on the connecting pipe 5 will further pressurize the compressed air so that the pressure of the compressed air meets the operating requirements of the device to be pressurized 4. For example, the compressed air pressure delivered to the annular pipe network 2 is 6 bar, and the air compressor 6 pressurizes the compressed air to 10 bar and then delivers the compressed air to the device to be pressurized 4 through the connecting pipe 5, but the present invention is not limited thereto.

[0044] In addition, the air compressor parallel air supply system 100 also includes a parallel branch pipe 7 and a switching valve 71. The parallel branch pipe 7 is arranged between the two connecting pipes 5 and is connected to the connecting pipes 5. The switching valve 71 is arranged on the parallel branch pipe. The compressed air pressurized by different air compressors can be shared through the parallel branch pipe 7 and the switching valve 71. The switching valve 71 is a ball valve, but the utility model is not limited to this. Specifically, when the switching valve 71 is in an open state, the compressed air on both sides of the annular pipe network 2 can be connected and shared through the parallel branch pipe 7 after being pressurized by the air compressor 6, that is, after the compressed air is pressurized by the air compressor 6 on one side of the annular pipe network 2, the compressed air can not only be provided to the equipment 4 to be pressurized corresponding to the air compressor 6 on this side, but also can be provided to the equipment 4 to be pressurized on the other side of the annular pipe network 2 through the parallel branch pipe 7, forming a parallel air supply operation mode of two air compressors 6 to two equipments 4 to be pressurized; when the switching valve 71 is in a closed state, the compressed air pressurized by the air compressor 6 will not be shared by other equipments 4 to be pressurized, and the connecting pipe 5 will transport the pressurized compressed air to its corresponding equipment 4 to be pressurized, forming an operation mode of one air compressor 6 to one equipment 4 to be pressurized. It should be noted that the air compressor parallel air supply system 100 provided by the utility model can also be applied to other factory workshops or other application scenarios with compressed air pressure requirements and pressurized equipment, such as welding workshops or assembly workshops. The device to be pressurized 4 may also be other pneumatic robots or pneumatic equipment, such as a welding robot or a CNC machine tool.

[0045] In the embodiment of the utility model, by setting the parallel branch pipe 7 and the switching valve 71, the high-pressure gas generated by different air compressors is shared by different equipment to be pressurized 4. Even if a certain air compressor 6 fails, the high-pressure gas generated by other air compressors 6 can still maintain the normal operation of each equipment and factory workshop, thereby reducing the risk of production line shutdown caused by the failure of a single air compressor and improving the risk resistance of equipment and factory workshops. In addition, the air compressor parallel air supply system 100 can be switched between the compressed air sharing mode and the non-sharing mode by switching the valve 71, so as to facilitate adjustment according to the specific working conditions of the air compressor 6 and the operating load of the equipment to be pressurized 4 to adapt to different working scenarios. At the same time, whether it is for the construction of a new factory workshop or the transformation of an existing factory workshop, the air compressor parallel air supply system 100 provided by the utility model has low construction cost and is easy to install or transform.

[0046] As a preferred embodiment, there are multiple parallel branch pipes 7 and multiple switching valves 71.

[0047] See also Figure 2 , Figure 2 This is a schematic structural diagram of an air compressor parallel air supply system according to another embodiment of the utility model. Figure 2 Provided air compressor parallel air supply system 200 and Figure 1 The difference of the provided air compressor parallel air supply system 100 lies in the number of the equipment to be pressurized 4, the air compressor 6, the connecting pipe 5, the parallel branch pipe 7 and the switching valve 71.

[0048] In a specific embodiment, the air compressor parallel air supply system 200 includes 12 pressurized equipment 4, 12 air compressors 6, 12 connecting pipes 5, 10 parallel branch pipes 7, and 10 switching valves 71. Figure 2As shown, multiple connecting pipes 5 located on one side of the annular pipe network 2 are connected by multiple parallel branches 7, and the connection of multiple connecting pipes 5 is controlled by opening and closing multiple switching valves 71, and the same is true for multiple connecting pipes 5 located on the other side of the annular pipe network 2. When there are a large number of equipment 4 to be pressurized in the factory workshop, one or more switching valves 71 can be selectively opened or closed according to the specific working conditions of the air compressor 6 and the operating load of different equipment 4 to be pressurized, so that the compressed air on one side of the annular pipe network 2 can be locally shared. Specifically, when all the switching valves 71 on the parallel branches 7 located on one side of the annular pipe network 2 are in an open state, the air compressor parallel air supply system 200 can form a parallel air supply operation mode of 6 air compressors 6 to 6 equipment 4 to be pressurized. After any air compressor 6 fails, through the connecting pipeline formed by the parallel branch 7, other air compressors 6 can continue to maintain the pressure required by the equipment 4 to be pressurized corresponding to the failed air compressor 6 to avoid shutdown. It should be noted that by controlling different switching valves 71 to open or close, it is also possible to realize the parallel air supply operation mode of 3 air compressors 6 to 3 equipment to be pressurized 4, 5 air compressors 6 to 5 equipment to be pressurized 4, and the operation mode of 1 air compressor 6 to 1 equipment to be pressurized 4, but the present invention is not limited to this.

[0049] Please refer to Figure 3 , Figure 3 The present invention is a schematic structural diagram of an air compressor parallel air supply system according to another embodiment of the present invention. Figure 3 Provided air compressor parallel air supply system 300 and Figure 2 The difference between the provided air compressor parallel air supply system 200 lies in the number of parallel branch pipes 7 and switching valves 71 .

[0050] In a specific embodiment, the air compressor parallel air supply system 300 includes 12 devices to be pressurized 4, 12 air compressors 6, 12 connecting pipes, 11 parallel branch pipes 7, and 11 switching valves 71.

[0051] like Figure 3As shown, all the connecting pipes 5 connected to the annular pipe network 2 are connected by multiple parallel branches 7 and the connection state is controlled by multiple switching valves 71. When there are a large number of equipment to be pressurized 4 in the factory workshop, one or more switching valves 71 can be selectively opened or closed according to the specific working conditions of the air compressor 6 and the operating load of different equipment to be pressurized 4, so that the compressed air after being pressurized on one side of the annular pipe network 2 can be partially or fully shared. Specifically, when all the switching valves 71 on all the parallel branches 7 are in an open state, the air compressor parallel air supply system 300 can form a parallel air supply operation mode of 12 air compressors 6 to 12 equipment to be pressurized 4. After any air compressor 6 fails, through the connecting pipeline formed by the parallel branch 7, other air compressors 6 can continue to maintain the pressure required by the equipment to be pressurized 4 corresponding to the failed air compressor 6, avoiding shutdown. It should be noted that by controlling different switching valves 71 to open or close, it is also possible to realize the sharing mode of other numbers of air compressors 6 according to actual needs as described above, which will not be repeated here.

[0052] In the embodiment of the utility model, a plurality of parallel branches 7 and a plurality of switching valves 71 are respectively provided for a plurality of equipment to be pressurized 4 and a plurality of air compressors 6, and by adjusting different switching valves 71, a plurality of modes of sharing of the pressurized compressed air are combined, which is further adapted to different working scenarios and requirements, and reduces the downtime caused by the failure of a single air compressor 6.

[0053] As a preferred embodiment, the air compressor parallel air supply system 100, 200, 300 also includes at least one pressure relief pipe 8, which is connected to the connecting pipe 5 and the parallel branch pipe 7; and at least one pressure relief valve 81, which is arranged on the pressure relief pipe 8 corresponding to the pressure relief pipe 8.

[0054] Please refer to Figure 1 The air compressor parallel air supply system 100 is also provided with a pressure relief pipe 8 and a pressure relief valve 81, and the pressure relief pipe 8 is connected to the connecting pipe 5 and the parallel branch pipe 7. When the air compressor 6 fails and the pressure in the connecting pipe 5 or the parallel branch pipe 7 is too high, the pressure relief valve 81 can be opened to discharge the compressed air from the pressure relief pipe 8 to avoid the occurrence of safety accidents. In addition, the discharged compressed air can be sampled by opening the pressure relief valve 81 to determine whether the quality of the compressed air meets the operating standards of the equipment to be pressurized 4. Please refer to Figure 2 and Figure 3 When the number of pressurized equipment 4 and air compressors 6 is too large, multiple pressure relief pipes 8 and pressure relief valves 81 may be provided in the air compressor parallel air supply system 200, 300. Specifically, Figure 2 and Figure 3As shown, the number of the pressure relief pipes 8 and the pressure relief valves 81 are two, respectively, and the two pressure relief pipes 8 are respectively connected to the parallel branch pipes 7 and the connecting pipes 5 on both sides of the annular pipe network 2. Increasing the number of the pressure relief pipes 8 and the pressure relief valves 81 can further ensure the safe and stable operation of the air compressor parallel air supply systems 200 and 300. Furthermore, the pressure relief valve 81 is a ball valve, but the utility model is not limited thereto.

[0055] In the embodiment of the utility model, by providing the pressure relief pipe 8 and the pressure relief valve 81, it is possible to avoid safety accidents caused by excessive pressure in the pipe, and at the same time facilitate random inspection of compressed air, which can reduce safety production risks.

[0056] See also Figures 1 to 3 As a preferred embodiment, the air compressor parallel air supply system 100, 200, 300 further includes a plurality of first inspection valves 51, which are respectively arranged on the plurality of connecting pipes 5 and located between the air compressor 6 and the annular pipe network 2; and a plurality of second inspection valves 52, which are respectively arranged on the plurality of connecting pipes 5 and located between the air compressor 6 and the parallel branch pipe 7. The first inspection valve 51 and the second inspection valve 52 are ball valves, but the utility model is not limited thereto.

[0057] In the embodiment of the utility model, when the air compressor 6 fails, the first inspection valve 51 and the second inspection valve 52 before and after the air compressor 6 are closed to stop the compressed air from being delivered to the air compressor 6, so that the air compressor 6 can be disassembled, repaired or replaced to ensure the safety of the operation. After the replacement of the air compressor 6 is completed, the first inspection valve 51 and the second inspection valve 52 are opened to restore the air supply of the connecting pipe 5 corresponding to the air compressor 6.

[0058] See also Figures 1 to 3 As a preferred embodiment, the air compressor parallel air supply system 100, 200, 300 further includes a plurality of second filters 9, which are respectively arranged on a plurality of connecting pipes 5 and located between the equipment to be pressurized 4 and the parallel branch pipe 7. In a specific embodiment, the filtering accuracy of the second filter 9 is 0.01 μm, and the oil removal accuracy is 0.008 ppm, but the utility model is not limited thereto.

[0059] In the embodiment of the utility model, a second filter 9 is provided to perform secondary filtration for oil and dust removal on the compressed air after being pressurized by the air compressor 6, thereby ensuring that the quality of the compressed air delivered to the equipment to be pressurized 4 meets the requirements and reducing product quality defects caused by impurities in the air.

[0060] As a preferred embodiment, the air compressor 6 is provided with an operation status sensor (not shown). Further, the operation status sensor is a stroke monitoring sensor and / or a vibration sensor.

[0061] In the embodiment of the utility model, by providing an operating status sensor on the air compressor 6 and monitoring the pumping frequency of the air compressor, alarm information can be obtained immediately after a failure of the air compressor 6 occurs, so that the failure can be handled in time to avoid causing failures of the air compressor parallel air supply systems 100, 200, 300, or even large-scale shutdown of the production line.

[0062] The air compressor parallel gas supply system 100, 200, 300 provided by the utility model realizes that the high-pressure gas generated by different air compressors is shared by different equipment to be pressurized by setting a parallel branch pipe 7 and a switching valve 71, thereby avoiding the shutdown of the equipment to be pressurized due to air compressor failure. In contrast, the existing factory workshop generally configures an air compressor for each equipment that needs to be pressurized, and the high-pressure gas generated by different air compressors cannot be shared with each other. If a single air compressor fails, the corresponding equipment that needs to be pressurized will not be able to operate, and it may even cause the shutdown of the entire factory workshop and the blockage of the previous process, which seriously reduces the production efficiency of the factory workshop. Therefore, the air compressor parallel gas supply system 100, 200, 300 provided by the utility model can use the high-pressure gas generated by other air compressors 6 to maintain the normal operation of various equipment and factory workshops when a certain air compressor 6 fails, thereby reducing the risk of production line shutdown caused by a single air compressor failure and improving the risk resistance of equipment and factory workshops. At the same time, it can also switch between the compressed gas sharing mode and the non-sharing mode, and be applied to different working scenarios. In addition, the air compressor parallel air supply system 100, 200, 300 provided by the present invention has low construction cost and is easy to install or modify.

[0063] In order to better achieve the purpose of the present invention, the present invention also provides a factory workshop, which is equipped with the air compressor parallel air supply system 100, 200, 300 as described above. The beneficial technical effects and specific implementation methods of the factory workshop are the same as those described in the air compressor parallel air supply system 100, 200, 300, and will not be repeated here. It should be noted that the factory workshop in this embodiment is a factory workshop or other application scenarios with compressed air pressure requirements and pressurization equipment, such as a painting workshop, welding workshop or assembly workshop. The equipment to be pressurized 4 is a pneumatic robot or pneumatic equipment, such as a painting robot, a welding robot or a CNC machine tool.

[0064] The above is a detailed introduction to the air compressor parallel air supply system and factory workshop provided by the utility model. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0065] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An air compressor parallel air supply system, comprising: An air supply pipeline and an annular pipe network, wherein the air supply pipeline is connected to the annular pipe network; A first filter is arranged on the air supply pipeline; A plurality of equipment to be pressurized are respectively connected to the annular pipe network through a plurality of connecting pipes; A plurality of air compressors are respectively arranged on the plurality of connecting pipes; characterized in that the air compressor parallel air supply system further comprises: at least one parallel branch pipe, disposed between the connecting pipes and connected to the connecting pipes; and At least one switching valve is arranged on the parallel branch pipe corresponding to the parallel branch pipe.

2. The air compressor parallel air supply system according to claim 1, characterized in that: There are multiple parallel branch pipes and multiple switching valves.

3. The air compressor parallel air supply system according to claim 1 or 2, characterized in that: Also includes: at least one pressure relief pipe, the pressure relief pipe being in communication with the connecting pipe and the parallel branch pipe; and At least one pressure relief valve is arranged on the pressure relief pipeline corresponding to the pressure relief pipeline.

4. The air compressor parallel air supply system according to claim 1 or 2, characterized in that: It also includes a plurality of second filters, which are respectively arranged on the plurality of connecting pipes and located between the equipment to be pressurized and the parallel branch pipes.

5. The air compressor parallel air supply system according to claim 1 or 2, characterized in that: The air compressor is provided with an operating status sensor.

6. The air compressor parallel air supply system according to claim 5, characterized in that: The operating status sensor is a travel monitoring sensor and / or a vibration sensor.

7. The air compressor parallel air supply system according to claim 1 or 2, characterized in that: Also includes: A plurality of first inspection valves, respectively arranged on the plurality of connecting pipes and located between the air compressor and the annular pipe network; as well as, A plurality of second inspection valves are respectively arranged on the plurality of connecting pipes and located between the air compressor and the parallel branch pipe.

8. The air compressor parallel air supply system according to claim 7, characterized in that: The switching valve, the first inspection valve and the second inspection valve are ball valves.

9. The air compressor parallel air supply system according to claim 1 or 2, characterized in that: The air compressor is a piston type air compressor.

10. A factory workshop, characterized in that: An air compressor parallel air supply system as described in any one of claims 1-9 is installed.