Control method for improving reliability of header system compressed air system and related device

Abstract

The invention belongs to the field of compressed air production control, and provides a control method for improving the reliability of a header system compressed air system and a related device. PLC fault judgment is added for on-site side equipment of an air compressor, a drying machine and a measuring instrument; in a DCS side protection interlocking system, joint starting logic is added, and a DCS can automatically trigger a starting program of standby equipment; a grouping type power supply strategy is adopted for power supplies of an air compressor, a drying machine and an in-situ instrument, and equipment is dispersed into different power packs; and a two-standby configuration mode is adopted in the operation mode of the power plant. On the basis of an existing PLC control function, the functions of starting and stopping sequential control and DCS fault alarm under the fault conditions of air compressor motor faults, outlet door closing and the like are added. The problems that when an air compressor motor breaks down or an outlet door is closed, a PLC does not have relevant logical judgment, and consequently a channel is blocked, and the pressure of a drying machine outlet main pipe is reduced are avoided.

Description

Technical Field

[0001] The present invention belongs to the field of compressed air production control, and in particular relates to a control method and a related device for improving the reliability of a main pipe-controlled compressed air system. Background Art

[0002] Pneumatic actuators generally have the advantages of fast response speed, large torque, and easy maintenance. They are widely used in on-site valve control in thermal power plants and gas turbine power plants, including the control of some important solenoid valves related to unit safety and start and stop. Once the compressed air pressure, gas volume, oil content, dew point, etc. are unqualified, it may directly cause valve malfunction and the whole plant's operating units to be forced to stop. Therefore, it is necessary to improve the reliability of the power plant's compressed air system to avoid damage to the power system caused by the unqualified compressed air quality and the non-stop of the whole plant's operating units.

[0003] According to the survey, the compressed air system configuration methods adopted by power plants are mainly divided into unit system and main pipe configuration methods. Among them, the unit system configuration method is a combination of an air compressor and a desiccant, and multiple pairs of combinations output compressed air to the main pipe, which is sent to the local site through the gas tank. Small gas tanks are configured on site as needed. The main pipe configuration method is that multiple air compressors output compressed air to the main pipe in parallel, and output it to multiple parallel dryers through the buffer tank. The dryer outlet main pipe is connected to the gas tank, and then sent to the local site through the gas tank. Small gas tanks can be configured on site as needed. By comparison, although the compressed air system under the main pipe configuration method is flexible in configuration, it has more weaknesses. Once the air compressor outlet main pipe, buffer tank, dryer outlet main pipe leaks or the dryer channel is blocked, any of the above situations may cause compressed air decompression. Since the equipment is not grouped, the interlocking logic between the equipment is more complicated. However, the control and interlocking logic design between the various devices in the existing compressed air system is unreasonable, resulting in low reliability of such compressed air systems. Summary of the invention

[0004] The purpose of the present invention is to provide a control method and related devices for improving the reliability of a main pipe compressed air system, so as to solve the problem of low reliability of such compressed air system caused by unreasonable control and interlocking logic design between various devices in the existing compressed air system.

[0005] To achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a control method for improving the reliability of a main pipe compressed air system, comprising: Add PLC fault judgment for local equipment such as air compressors, dryers and measuring instruments; In the DCS side protection interlocking system, the interlocking logic is added, and the DCS can automatically trigger the startup procedure of the backup equipment; A grouped power supply strategy is adopted for the power supply of air compressors, dryers and local instruments, distributing the equipment into different power supply groups; The power plant operates in a two-standby configuration mode.

[0006] Furthermore, the local equipment for air compressors, dryers and measuring instruments is optimized by adding PLC fault judgment, which specifically includes: Air compressor: Added automatic shutdown sequence control under conditions such as air compressor motor failure and exit door closing, and sent fault alarms to the DCS system to ensure timely communication of fault information; Dryer: Add abnormal judgment of adsorption regeneration rotation control between adsorption towers. When the pneumatic door status feedback is abnormal, an alarm will be sent to DCS and sequential control will be interrupted; Measuring instruments: Increase the number of main pipe pressure measuring points to three, and adopt two-out-of-three logic judgment.

[0007] Furthermore, in the protection interlocking system on the DCS side, a joint start logic is added, and the DCS can automatically trigger the startup procedure of the backup equipment, specifically including: Air compressor room: Add the logic of starting the standby air compressor in case of PLC communication failure or air compressor power failure on the DCS side, and issue a first-level alarm on the DCS screen, and add the logic of starting the standby air compressor in case of low pressure at the dryer outlet main pipe or low pressure at the air compressor outlet main pipe.

[0008] Dryer room: Add the logic of starting the standby dryer in case of PLC communication failure or dryer power failure on the DCS side, and issue an alarm on the DCS screen, and add the logic of starting the standby dryer in case of low pressure at the dryer outlet main pipe.

[0009] Furthermore, a two-out-of-three method is used to determine the main pipe pressure to ensure that the standby air compressor can be started in time when the pressure is low.

[0010] Furthermore, the power supply of the air compressor, dryer and local instruments adopts a grouped power supply strategy to distribute the equipment into different power groups, specifically including: Optimize the power distribution of the air compressor, dryer and local instruments, use two sets of power supplies with different sections, and set up a power switching device; Independent power supply for standby equipment: When setting up primary and standby equipment, ensure that the power supply for the standby equipment and the power supply for the running equipment come from different segments.

[0011] Furthermore, specifically, the four air compressors are divided into two groups, each using a different section of power supply, and the dryer and local pressure transmitter also use the same configuration.

[0012] Furthermore, the two-standby configuration mode is adopted in the operation mode of the power plant, specifically including: The one-backup and two-backup method is adopted to ensure that the backup equipment can be started quickly when any operating equipment fails; ensure that the power supply of the backup equipment is in a different segment from that of the operating equipment.

[0013] In a second aspect, the present invention provides a control system for improving the reliability of a main pipe compressed air system, comprising: The local equipment improvement module is used to add PLC fault judgment for local equipment such as air compressors, dryers and measuring instruments; The DCS side improvement module is used to add the interlocking logic to the DCS side protection interlocking system, so that the DCS can automatically trigger the startup procedure of the standby equipment; The power distribution module is used to adopt a grouped power supply strategy for the power supply of air compressors, dryers and local instruments, distributing the equipment into different power groups; The power plant side configuration module is used to adopt a two-standby configuration mode in the operation mode of the power plant.

[0014] In a third aspect, the present invention provides a computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of providing a control method for improving the reliability of a main pipe compressed air system when executing the computer program.

[0015] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of providing a control method for improving the reliability of a main pipe compressed air system.

[0016] Compared with the prior art, the present invention has the following technical effects: The present invention provides a control method for improving the reliability of a main pipe compressed air system, and proposes improved control methods from four aspects: local side equipment PLC control, DCS side protection interlocking control, power distribution, and operation mode.

[0017] (1) In terms of local PLC control of the local air compressor, the present invention adds the functions of starting and stopping the compressor in the event of a motor failure, outlet door closure, etc., and alarming the DCS for a fault on the basis of the existing PLC control function. This avoids the situation where the PLC has no relevant logic judgment when the air compressor motor fails or the outlet door is closed, resulting in blockage of the passage and a decrease in the pressure of the dryer outlet main pipe.

[0018] (2) In terms of local PLC control of the dryer, the present invention, based on the existing PLC control function, determines whether the switch feedback comes at the same time when judging the status feedback of the pneumatic door being open. If the PLC receives both the open and closed status feedback of the pneumatic door, it will send an abnormal alarm to the DCS and interrupt the sequential control. This is to avoid the situation where the pneumatic door connecting rod breaks due to mechanical reasons, the door is not fully opened, and the pneumatic door status feedback switch measurement is abnormal. The PLC receives both the open and closed feedback status of the pneumatic door at the same time, and will continue to execute the program to close the entrance door of the adsorption tower on the other side, resulting in the blockage of the two adsorption tower channels of the dryer, and then the risk of reduced pressure at the dryer outlet.

[0019] (3) In terms of the configuration of the measuring points of the air compressor outlet main pipe and the dryer outlet main pipe, the present invention adds two measuring points on the basis of the existing measuring point configuration to provide two-out-of-three judgment, thereby improving the reliability of the protection interlocking logic.

[0020] (4) In terms of the interlocking control of the air compressor on the DCS side, this patent adds the logic of starting the standby air compressor when the PLC communication fails or the air compressor loses power, based on the existing DCS side air compressor interlocking logic, and at the same time sends a first-level alarm on the DCS screen to avoid the DCS side not receiving the shutdown signal when the PLC itself or the air compressor loses power, that is, the standby air compressor cannot be started. In order to avoid the possibility that the standby air compressor cannot be started in time due to a single measuring point failure, the present invention increases the main pipe pressure measuring points to three measuring points as described in S1, and then adds a method of starting the standby air compressor on the DCS side by comparing the three measuring points with the fixed value and taking two out of three.

[0021] (5) In terms of the interlocking control of the dryer on the DCS side, this patent adds the logic of starting the standby dryer when the PLC communication fails or the dryer loses power, based on the existing DCS side dryer interlocking logic, and at the same time sends a first-level alarm on the DCS screen to avoid the situation where the DCS side does not receive the shutdown signal when the PLC itself or the dryer loses power, and the standby air compressor cannot be started. In order to avoid the standby dryer being unable to be started, the present invention adds the logic of starting the standby dryer when the dryer outlet main pipe pressure is low on the basis of the existing interlocking logic. Similarly, the present invention increases the number of dryer outlet main pipe pressure measuring points to three, and adds a method on the DCS side to start the standby dryer by comparing the three measuring points with the fixed value and taking two out of three.

[0022] (6) In terms of power supply configuration, in order to avoid the failure of a single power supply switching device or the long switching time due to aging, which may cause the entire air compression system to lose power, the present invention divides the four air compressors into two groups and uses different power supply segments. The dryer and the local pressure transmitter power supply adopt the same power supply configuration. When setting the main and standby allocation between the air compressor and the dryer, the power supply configuration should be considered. The standby equipment should preferably be equipment in different power supply segments to prevent the standby equipment from failing to start up due to being in the same power supply segment. The time is wasted when starting up the two standby equipment, which may cause the entire compressed air system to lose air.

[0023] (7) In terms of operation mode, in order to avoid the failure of a single standby device to start up and cause the entire compressed air system to lose power, the present invention recommends that power plants avoid adopting a one-in-one-standby operation mode, and adopt a two-standby operation mode when conditions permit, namely one standby and two standby. According to S3, the standby equipment should be selected from a power supply segment different from that of the operating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a flow chart of the present invention.

[0025] Figure 2 This is a logic block diagram of the present invention.

[0026] Figure 3 It is the mother pipe pressure transmitter. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings: Example 1, please refer to Figure 1 , providing a control method to improve the reliability of the main pipe compressed air system, including: Add PLC fault judgment for local equipment such as air compressors, dryers and measuring instruments; In the DCS side protection interlocking system, the interlocking logic is added, and the DCS can automatically trigger the startup procedure of the backup equipment; A grouped power supply strategy is adopted for the power supply of air compressors, dryers and local instruments, distributing the equipment into different power supply groups; The power plant operates in a two-standby configuration mode.

[0028] Embodiment 2, the present invention provides a control method for improving the reliability of a main pipe compressed air system, specifically comprising: In view of the reliability problems existing in the existing compressed air system, this invention proposes a comprehensive control method, which aims to significantly improve the overall stability and safety of the system by optimizing the PLC control of the local equipment, the protection interlocking control of the DCS side, the power distribution and the operation mode. The following is a detailed description of the technical solution: S1. PLC control optimization of local equipment Air compressor control: Based on the existing PLC control, this invention adds a monitoring and response mechanism for key faults such as air compressor motor failure and exit door closure. When these faults are detected, the PLC will automatically start the shutdown sequence and send a fault alarm to the DCS system to ensure that the fault information is transmitted to the central monitoring system in a timely manner for rapid response and processing.

[0029] Dryer control: For the adsorption regeneration rotation control of the combined dryer, the present invention introduces a more stringent judgment mechanism in the PLC logic. When judging the open state of the pneumatic door, if both the open and closed state feedback are received at the same time, it is considered abnormal, and an alarm is immediately sent to the DCS and the sequential control process is interrupted, effectively preventing the channel blockage caused by abnormal pneumatic door state feedback and ensuring the stability of the dryer outlet pressure.

[0030] S2, DCS side protection interlocking control enhancement Air compressor standby interlock: On the DCS side, the present invention not only retains the original logic of interlocking the standby air compressor when the air compressor is out of service or the outlet main pipe pressure is low, but also adds the interlocking logic when the PLC communication fails or the air compressor loses power, and sets a first-level alarm on the DCS screen to ensure that the standby air compressor can be started in time in any fault situation to maintain the system pressure stable. At the same time, the three-out-of-two measurement point judgment method is adopted to improve the reliability of the main pipe pressure monitoring and reduce the risk of interlock failure caused by single-point failure.

[0031] Dryer standby interlock: Similarly, the interlocking logic for dryers is added when PLC communication fails or power is lost, and the interlocking logic for dryer outlet main pipe pressure is low and outlet dew point is high is added to ensure that standby equipment can be started in time when the dryer fails to ensure the quality of compressed air. The same three-out-of-two measurement point judgment method is used to improve the reliability of the interlocking logic.

[0032] S3. Improvement of power distribution method In order to avoid the impact of a single power failure on the entire compressed air system, the present invention optimizes the power distribution method. The four air compressors are divided into two groups, each group uses a different section of power supply, and the dryer and local instruments also use the same power configuration. This decentralized power supply method effectively reduces the risk of system power failure caused by power failure and improves the overall reliability of the system.

[0033] S4. Operation optimization suggestions From the perspective of energy saving and reliability, the present invention recommends that power plants avoid the one-in-one-standby operation mode, because this mode is prone to cause the mother pipe to lose pressure when a single device fails. Instead, it is recommended to adopt a two-standby operation mode (one standby, two standby), and ensure that the power supply of the standby equipment is different from that of the operating equipment to reduce the risk of joint start-up failure caused by power supply problems. This operation mode not only improves the reliability of the system, but also enhances the ability to deal with sudden failures.

[0034] In summary, the present invention improves the reliability of the compressed air system from multiple dimensions through a series of innovative improvement measures, providing a strong guarantee for the safe and stable operation of the power plant.

[0035] Embodiment 3, as Figure 2 As shown in the figure, in the compressed air system, the operational reliability can be significantly improved through refined design and control strategies. Specifically, the system adopts a series of efficient and coordinated methods to ensure that everything from equipment control to system protection, power supply configuration and operation mode are in the optimal state.

[0036] First, the key equipment on the local side, including air compressors, dryers and measuring instruments, are all controlled by PLC (Programmable Logic Controller). This measure not only realizes the automated operation of the equipment, but also ensures the stability and accuracy of the equipment operation through precise command control. PLC control can monitor the equipment status in real time, adjust the operating parameters in time, and effectively prevent failures, thereby improving the overall reliability of the system.

[0037] Secondly, the DCS (distributed control system) side is responsible for the protection and interlocking functions of the system. In the key links between air compressors, dryers, and between the main pipe pressure and air compressors and dryers, the DCS system achieves all-round protection of system safety through complex logical judgment and rapid response mechanisms. Once an abnormal situation is detected, such as abnormal pressure, equipment failure, etc., the DCS will immediately start the interlocking protection program, cut off the operation of related equipment, prevent the accident from expanding, and ensure the safe and stable operation of the system.

[0038] In addition, a reasonable power configuration is also an important means to improve system reliability. By optimizing the power layout and adopting redundant power design, it can be ensured that when the system power fails, it can quickly switch to the backup power supply to ensure continuous power supply to the equipment and avoid system downtime due to power outages.

[0039] Finally, scientific operation methods are also crucial to improving system reliability. By formulating reasonable operation plans, implementing regular equipment maintenance and servicing, and strengthening operator skill training, we can ensure that the system always maintains the best operating state. At the same time, problems and failures that occur during operation should be promptly checked and handled to prevent problems from accumulating and expanding.

[0040] In summary, the reliability of the compressed air system can be significantly improved through the implementation of comprehensive strategies such as local equipment PLC control, DCS side protection and interlocking, reasonable power supply configuration and scientific operation mode. These strategies not only help to reduce the system failure rate and increase the service life of equipment, but also bring more stable and efficient compressed air supply guarantee to enterprises.

[0041] In yet another embodiment of the present invention, a control system for improving the reliability of a main pipe compressed air system is provided, which can be used to implement the above-mentioned control method for improving the reliability of a main pipe compressed air system. Specifically, the system includes: The local equipment improvement module is used to add PLC fault judgment for local equipment such as air compressors, dryers and measuring instruments; The DCS side improvement module is used to add the interlocking logic to the DCS side protection interlocking system, so that the DCS can automatically trigger the startup procedure of the standby equipment; The power distribution module is used to adopt a grouped power supply strategy for the power supply of air compressors, dryers and local instruments, distributing the equipment into different power groups; The power plant side configuration module is used to adopt a two-standby configuration mode in the operation mode of the power plant.

[0042] The division of modules in the embodiments of the present invention is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present invention may be integrated into one processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0043] In another embodiment of the present invention, a computer device is provided, the computer device includes a processor and a memory, the memory is used to store a computer program, the computer program includes program instructions, and the processor is used to execute the program instructions stored in the computer storage medium. The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, and is specifically suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function; the processor described in the embodiment of the present invention can be used to provide an operation of a control method for improving the reliability of a main pipe compressed air system.

[0044] In another embodiment of the present invention, the present invention also provides a storage medium, specifically a computer-readable storage medium (Memory), which is a memory device in a computer device for storing programs and data. It is understandable that the computer-readable storage medium here can include both built-in storage media in the computer device and, of course, extended storage media supported by the computer device. The computer-readable storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor can load and execute one or more instructions stored in the computer-readable storage medium to implement the corresponding steps of the control method for improving the reliability of the mother pipe compressed air system in the above embodiment.

[0045] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0046] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0047] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0048] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. Provide a control method for improving the reliability of a main pipe compressed air system, characterized in that: include: Add PLC fault judgment for local equipment such as air compressors, dryers and measuring instruments; In the DCS side protection interlocking system, the interlocking logic is added, and the DCS can automatically trigger the startup procedure of the backup equipment; A grouped power supply strategy is adopted for the power supply of air compressors, dryers and local instruments, distributing the equipment into different power supply groups; The power plant operates in a two-standby configuration mode.

2. The control method for improving the reliability of the main pipe compressed air system according to claim 1, characterized in that: The local equipment for air compressors, dryers and measuring instruments is equipped with PLC fault judgment, which specifically includes: Air compressor: Added automatic shutdown sequence control under conditions such as air compressor motor failure and exit door closing, and sent fault alarms to the DCS system to ensure timely communication of fault information; Dryer: Add abnormal judgment of adsorption regeneration rotation control between adsorption towers. When the pneumatic door status feedback is abnormal, an alarm will be sent to DCS and sequential control will be interrupted; Measuring instruments: Increase the number of main pipe pressure measuring points to three, and adopt two-out-of-three logic judgment.

3. The control method for improving the reliability of the main pipe compressed air system according to claim 1, characterized in that: In the protection interlocking system on the DCS side, the interlocking logic is added, and the DCS can automatically trigger the startup procedure of the backup equipment, specifically including: Air compressor room: Add the logic of starting the standby air compressor when PLC communication fails or the air compressor loses power on the DCS side, and issue a first-level alarm on the DCS screen. Add the logic of starting the standby air compressor when the dryer outlet main pipe pressure is low or the air compressor outlet main pipe pressure is low. Dryer room: Add the logic of starting the standby dryer in case of PLC communication failure or dryer power failure on the DCS side, and issue an alarm on the DCS screen, and add the logic of starting the standby dryer in case of low pressure at the dryer outlet main pipe.

4. The control method for improving the reliability of the main pipe compressed air system according to claim 3, characterized in that: The three-out-of-two method is used to determine the main pipe pressure to ensure that the standby air compressor can be started in time when the pressure is low.

5. The control method for improving the reliability of the main pipe compressed air system according to claim 1, characterized in that: The power supply of the air compressor, dryer and local instruments adopts a grouped power supply strategy to distribute the equipment into different power groups, including: Optimize the power distribution of the air compressor, dryer and local instruments, use two sets of power supplies with different sections, and set up a power switching device; Independent power supply for backup equipment: When setting the power supply for primary and backup equipment, ensure that the power supply for backup equipment and the power supply for running equipment come from different power supply segments.

6. The control method for improving the reliability of the main pipe compressed air system according to claim 5, characterized in that: Specifically, the four air compressors are divided into two groups, each group uses a different section of power supply, and the dryer and on-site pressure transmitter also use the same configuration.

7. The control method for improving the reliability of the main pipe compressed air system according to claim 1, characterized in that: The two-standby configuration mode is adopted in the operation mode of the power plant, specifically including: The one-backup and two-backup method is adopted to ensure that the backup equipment can be started quickly when any operating equipment fails; ensure that the power supply of the backup equipment is in a different segment from that of the operating equipment.

8. A control system for improving the reliability of a main pipe compressed air system, characterized in that: include: The local equipment improvement module is used to add PLC fault judgment for local equipment such as air compressors, dryers and measuring instruments; The DCS side improvement module is used to add the interlocking logic to the DCS side protection interlocking system, so that the DCS can automatically trigger the startup procedure of the standby equipment; The power distribution module is used to adopt a grouped power supply strategy for the power supply of air compressors, dryers and local instruments, distributing the equipment into different power groups; The power plant side configuration module is used to adopt a two-standby configuration mode in the operation mode of the power plant.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of providing a control method for improving the reliability of a main pipe compressed air system as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of providing a control method for improving the reliability of a main pipe compressed air system as described in any one of claims 1 to 7 are implemented.

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