A system and method for regulating the amount of gas output based on the gas supply capacity of a compressed gas system
By dynamically controlling the electric valve of the air supply pipeline through real-time data acquisition and calculation adjustment module, the problem of insufficient air consumption at the user end of the compressed air system is solved, realizing the efficient operation of the air compressor and the real-time controllability of system pressure, thus extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA YANGTZE POWER
- Filing Date
- 2023-04-11
- Publication Date
- 2026-04-17
AI Technical Summary
Existing compressed air systems lack automatic adjustment devices when users consume large amounts of air, leading to frequent starts and long-term operation of air compressors, which affects equipment lifespan and may cause system pressure drops, wasting human resources.
By collecting relevant data from the compressed air system in real time, using pressure and wind speed sensors to monitor the pressure and wind speed of the air tank, and combining this with a calculation and adjustment module to dynamically adjust the electric valves of the air supply pipeline, real-time control of the air consumption at the user end can be achieved, ensuring that the air compressor does not operate under overload.
It enables dynamic adjustment of air consumption without human intervention, extends the service life of the air compressor, avoids equipment overheating and overload problems, and improves the controllability and efficiency of the system.
Smart Images

Figure CN116398412B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tools for the operation and maintenance of hydro-generator sets, and in particular to a system and method for adjusting the output air volume based on the air supply capacity of a compressed air system. Background Technology
[0002] Currently, air compressors in compressed air systems are primarily controlled based on start-stop pressure setpoints. When the system pressure drops to the compressor's start-up pressure setpoint, the compressor starts running and continues until the system pressure rises to the stop-down pressure setpoint or a compressor malfunctions. User-side air consumption is not controlled. When users consume large amounts of air, the lack of an automatic air consumption adjustment device on the supply line can cause the air compressor to run continuously for extended periods. Short start-up intervals or prolonged continuous operation can lead to overheating, overload, and other malfunctions, affecting the compressor's lifespan. Furthermore, consistently exceeding the supply capacity can cause the system pressure to drop to unacceptable levels. To avoid these issues, it is often necessary to assign a team to monitor the compressed air system during periods of high user air consumption, manually intervening when necessary. This is time-consuming, labor-intensive, and wastes human resources. Summary of the Invention
[0003] To address the shortcomings of existing technologies, the present invention aims to provide a system and method for adjusting the output air volume based on the air supply capacity of a compressed air system. This system dynamically adjusts the maximum air consumption at the user end by collecting relevant data in real time and controlling the electric valve of the air supply pipeline, thereby achieving real-time controllable pressure of the air supply system and ensuring that the air compressor does not operate under overload.
[0004] To achieve the above-mentioned technical effects, the present invention aims to provide a system for adjusting the output air volume based on the air supply capacity of a compressed air system. The system includes an air supply module for supplying air, which is connected to an acquisition module for collecting its parameters. The air supply module is connected to a user terminal through an air consumption adjustment module. The air supply module, the acquisition module, and the air consumption adjustment module are all connected to a calculation adjustment module.
[0005] The air supply module includes an air compressor, which is connected to an air storage tank.
[0006] The acquisition module includes a pressure sensor and a wind speed sensor connected to the gas storage tank, which are used to acquire the pressure of the gas storage tank and the wind speed during the gas supply process, respectively.
[0007] The gas consumption regulating module uses an electric valve.
[0008] The method for regulating the output air volume of a system based on the air supply capacity of a compressed air system involves the system acquiring relevant data in real time through an acquisition module, analyzing the data through a calculation and regulation module, and then feeding back to control the air consumption regulation module. The air consumption regulation module dynamically adjusts the maximum air consumption at the user end, thereby achieving real-time controllable air supply system pressure and ensuring that the air compressor does not operate under overload.
[0009] The maximum gas consumption adjustment range at the user end is determined based on actual experiments.
[0010] A method for regulating the output air volume of a system based on the air supply capacity of a compressed air system. First, the following data is defined:
[0011] The real-time pressure value of the gas storage tank is P, which is the pressure value of the gas storage tank collected in real time by the pressure sensor.
[0012] The pressure change rate of the gas storage tank is PV, which is calculated in real time based on the collected pressure values;
[0013] The starting pressure setting of the air compressor is P1;
[0014] The difference between the current pressure P and the air compressor starting pressure setpoint P1 is ΔP1, where ΔP1 = P - P1;
[0015] The time required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is T1, where T1 = ΔP1 / PV;
[0016] Air compressor stop pressure setpoint P2;
[0017] The difference between the current pressure P and the air compressor's stop pressure setpoint P2 is ΔP2, where ΔP2 = P2 - P;
[0018] The time required for the current pressure P to rise to the compressor's stop pressure setpoint P2 is T2, where T2 = ΔP2 / PV;
[0019] The air compressor has been out of service for time T0;
[0020] The minimum allowable start-up interval T3 for the air compressor;
[0021] The maximum allowable continuous operating time of the air compressor is T4;
[0022] The real-time wind speed from the wind speed sensor is V;
[0023] The specific implementation process of the adjustment method is as follows:
[0024] The data acquisition module collects real-time data on the air compressor's operation, air supply system pressure changes, and air supply pipeline wind speed. It then executes a dynamic adjustment process. Upon initiation, the air supply pipeline electric valve is opened appropriately. A wind speed sensor determines if the user is using air. If no air is being used, the current adjustment process ends and proceeds to the next. If the user is using air, the system checks if the air compressor is running. The pressure sensor collects the air tank pressure change rate PV in real-time. When the air compressor is not running, the calculation module calculates the time T1 required for P to drop to P1. It compares T1 with T3-T0. If T1 is less than T3-T0, the opening of the air supply pipeline electric valve is reduced. If the electric valve is not fully closed at this point, the system proceeds to the next dynamic adjustment process. If the electric valve is fully closed, the system waits for the air compressor to meet the minimum start-up interval before starting the air compressor to supply air to the system. The system pressure rises to P2, and then enters the next dynamic adjustment process. If T1 = T3 - T0, the current opening is maintained and the next dynamic adjustment process is entered directly. When the air compressor is running, the time T2 required to rise to the air compressor stop pressure setpoint P2 is calculated by the calculation and adjustment module. The values of T2 and T4 are compared. If T2 is less than T4, it is first determined whether the opening of the electric valve in the air supply line is 100%. If it is, the 100% opening is maintained and the next dynamic adjustment process is entered. If the electric valve opening is not 100%, the electric valve opening is increased and the next dynamic adjustment process is entered. If T2 = T4, the current opening is maintained and the next dynamic adjustment process is entered. If T2 is greater than T4, the electric valve opening is decreased. If the electric valve is not fully closed, the next dynamic adjustment process is entered. If the electric valve has been adjusted to be fully closed, the air compressor is kept running and the air supply system pressure is raised to P2.
[0025] A method for regulating the output air volume of a system based on the air supply capacity of a compressed air system involves real-time acquisition of the air compressor's operating status, air supply system pressure changes, and air supply pipeline velocity. This data is then sent to a calculation and regulation module, which uses this data to make judgments and executes the following specific steps:
[0026] S0: Start the dynamic adjustment process and proceed to S1;
[0027] S1: Determine the opening degree of the electric valve in the gas supply line. If the opening degree is 0, proceed to S2; if the opening degree is not 0, proceed to S3.
[0028] S2: Issue a command to open the electric valve of the gas supply line appropriately, the specific opening degree is determined according to the actual test, and then proceed to S3;
[0029] S3: Determine the current wind speed V in the gas supply pipeline. If the wind speed is 0, proceed to S4; if the wind speed is not 0, proceed to S6.
[0030] S4: The conclusion is that the user is not using gas at this time, and proceeds to S5;
[0031] S5: Initiate the next dynamic adjustment process;
[0032] S6: Conclude that the user is currently using gas, and proceed to S7;
[0033] S7: Determine if the air compressor is running. If yes, proceed to S8; otherwise, proceed to S18.
[0034] S8: Calculate the time T2 required for the current pressure P of the air supply system to rise to the air compressor shutdown pressure P2, and then proceed to S9;
[0035] S9: Determine whether the time T2 required for the current pressure P of the air supply system to rise to the air compressor shutdown pressure P2 is less than the maximum allowable continuous operating time T4 of the air compressor. If it is less, proceed to S10; if it is not less, proceed to S13.
[0036] S10: Determine if the opening of the electric valve in the gas supply line is 100%. If yes, proceed to S11; otherwise, proceed to S12.
[0037] S11: Maintain the current opening and proceed to S17;
[0038] S12: Increase the opening of the electric valve in the gas supply line and proceed to S17;
[0039] S13: Determine whether the time T2 required for the current pressure of the air supply system to rise to the air compressor shutdown pressure P2 is equal to the maximum allowable continuous running time T4 of the air compressor. If it is equal, proceed to S11; otherwise, proceed to S14.
[0040] S14: Reduce the opening of the electric valve in the gas supply line and proceed to S15;
[0041] S15: Determine if the opening degree of the electric valve in the gas supply line is 0. If it is 0, proceed to S16; otherwise, proceed to S17.
[0042] S16: Keep the air compressor running until the air tank pressure rises to P2, and then proceed to S17;
[0043] S17: Initiate the next dynamic adjustment process;
[0044] S18: Calculate the time T1 required for the current pressure P to drop to the air compressor start-up pressure setpoint P1, and proceed to S19;
[0045] S19: Determine whether the time T1 required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is less than the minimum allowable start interval time T3 of the air compressor minus the time the air compressor has been shut down T0. If it is less, proceed to S20; if it is not less, proceed to S21.
[0046] S20: Reduce the opening of the electric valve in the gas supply line and proceed to S24;
[0047] S21: Determine whether the time T1 required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is equal to the air compressor's minimum allowable starting interval time T3 minus the air compressor's downtime T0. If it is equal, proceed to S22; otherwise, proceed to S23.
[0048] S22: Maintain the current opening and proceed to S27;
[0049] S23: Increase the opening of the electric valve in the gas supply line and proceed to S27;
[0050] S24: Determine if the opening degree of the electric valve in the gas supply line is 0. If it is 0, proceed to S25; otherwise, proceed to S27.
[0051] S25: Time the air compressor to meet the minimum allowable start interval time. The specific time is equal to the minimum allowable start interval time T3 of the air compressor minus the current downtime T0 of the air compressor, and then proceed to S26.
[0052] S26: Start the air compressor to increase the pressure in the air tank to P2, and then proceed to S27;
[0053] S27: Initiate the next dynamic adjustment process.
[0054] The present invention has the following beneficial effects:
[0055] 1. The process of this invention enables dynamic adjustment of gas consumption without human intervention.
[0056] 2. This invention comprehensively considers the air compressor status during the dynamic adjustment of air consumption, ensuring that the air compressor meets the minimum start-up interval and does not exceed the maximum continuous running time, effectively improving the service life of the air compressor. Attached Figure Description
[0057] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0058] Figure 1 This is a structural diagram of the system for dynamically adjusting the gas consumption based on the gas supply capacity of the compressed gas system according to the present invention.
[0059] Figure 2 This is a flowchart of the method for dynamically adjusting the gas consumption based on the gas supply capacity of a compressed gas system according to the present invention.
[0060] In the diagram: Gas supply module 1, calculation and adjustment module 2, data acquisition module 3, gas consumption adjustment module 4, user terminal 5. Detailed Implementation
[0061] The embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0062] Example 1:
[0063] See Figure 1 A system for adjusting air output based on the air supply capacity of a compressed air system is disclosed. The system includes an air supply module 1 for supplying air, which is connected to a data acquisition module 3 for collecting its parameters. The air supply module 1 is connected to a user terminal 5 via an air consumption adjustment module 4. The air supply module 1, data acquisition module 3, and air consumption adjustment module 4 are all connected to a calculation and adjustment module 2. By comprehensively considering the air compressor's status during the dynamic adjustment of air consumption, the system ensures that the air compressor meets the minimum start-up interval and does not exceed the maximum continuous operating time, effectively improving the service life of the air compressor.
[0064] Furthermore, the air supply module 1 includes an air compressor connected to an air storage tank. The air compressor is used to supply air, and the air storage tank is used to store the gas.
[0065] Furthermore, the acquisition module 3 includes a pressure sensor and a wind speed sensor connected to the gas storage tank, which are used to acquire the pressure of the gas storage tank and the wind speed during the gas supply process, respectively. The pressure sensor can acquire the pressure of the gas storage tank in real time, and the wind speed sensor can acquire the wind speed of the gas supply pipeline in real time.
[0066] Furthermore, the gas consumption regulating module 4 employs an electric valve. This electric valve enables the regulation of the gas supply.
[0067] Example 2:
[0068] The method for adjusting the output air volume of a system based on the air supply capacity of a compressed air system involves the system acquiring relevant data in real time through the acquisition module 3, analyzing the data through the calculation and adjustment module 2, and then feeding back to control the air consumption adjustment module 4. The air consumption adjustment module 4 dynamically adjusts the maximum air consumption of the user terminal 5, thereby achieving real-time controllable air supply system pressure and ensuring that the air compressor does not operate under overload.
[0069] The maximum gas consumption adjustment range of the user terminal 5 is determined based on actual tests.
[0070] Example 3:
[0071] A method for regulating the output air volume of a system based on the air supply capacity of a compressed air system. First, the following data is defined:
[0072] The real-time pressure value of the gas storage tank is P, which is the pressure value of the gas storage tank collected in real time by the pressure sensor.
[0073] The pressure change rate of the gas storage tank is PV, which is calculated in real time based on the collected pressure values;
[0074] The starting pressure setting of the air compressor is P1;
[0075] The difference between the current pressure P and the air compressor starting pressure setpoint P1 is ΔP1, where ΔP1 = P - P1;
[0076] The time required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is T1, where T1 = ΔP1 / PV;
[0077] Air compressor stop pressure setpoint P2;
[0078] The difference between the current pressure P and the air compressor's stop pressure setpoint P2 is ΔP2, where ΔP2 = P2 - P;
[0079] The time required for the current pressure P to rise to the compressor's stop pressure setpoint P2 is T2, where T2 = ΔP2 / PV;
[0080] The air compressor has been out of service for time T0;
[0081] The minimum allowable start-up interval T3 for the air compressor;
[0082] The maximum allowable continuous operating time of the air compressor is T4;
[0083] The real-time wind speed from the wind speed sensor is V;
[0084] The specific implementation process of the adjustment method is as follows:
[0085] The data acquisition module 3 collects real-time data on the air compressor's operation, air supply system pressure changes, and air supply pipeline wind speed. It then executes a dynamic adjustment process. Upon starting the process, the air supply pipeline electric valve is opened appropriately. The wind speed sensor determines if the user is using air. If no air is being used, the current adjustment process ends and the next process begins. If the user is using air, the system checks if the air compressor is running. The pressure sensor collects the air tank pressure change rate PV in real-time. When the air compressor is not running, the calculation module 4 calculates the time T1 required for P to drop to P1. It compares T1 with T3-T0. If T1 is less than T3-T0, the opening of the air supply pipeline electric valve is reduced. If the electric valve is not fully closed at this point, the next dynamic adjustment process begins. If the electric valve is fully closed, the system waits for the air compressor to meet the minimum start-up interval before starting to supply air. The system pressure rises to P2, and then enters the next dynamic adjustment process. If T1 = T3 - T0, the current opening is maintained and the next dynamic adjustment process is entered directly. When the air compressor is running, the time T2 required to rise to the air compressor stop pressure setpoint P2 is calculated by the calculation and adjustment module. The values of T2 and T4 are compared. If T2 is less than T4, it is first determined whether the opening of the electric valve in the air supply line is 100%. If it is, the 100% opening is maintained and the next dynamic adjustment process is entered. If the electric valve opening is not 100%, the electric valve opening is increased and the next dynamic adjustment process is entered. If T2 = T4, the current opening is maintained and the next dynamic adjustment process is entered. If T2 is greater than T4, the electric valve opening is decreased. If the electric valve is not fully closed, the next dynamic adjustment process is entered. If the electric valve has been adjusted to be fully closed, the air compressor is kept running and the air supply system pressure is raised to P2.
[0086] Example 4:
[0087] See Figure 2 A method for regulating the output air volume of a system based on the air supply capacity of a compressed air system involves real-time acquisition of the air compressor's operating status, air supply system pressure changes, and air supply pipeline velocity. This data is then sent to a calculation and regulation module, which uses this data to make judgments and executes the following specific procedures:
[0088] S0: Start the dynamic adjustment process and proceed to S1;
[0089] S1: Determine the opening degree of the electric valve in the gas supply line. If the opening degree is 0, proceed to S2; if the opening degree is not 0, proceed to S3.
[0090] S2: Issue a command to open the electric valve of the gas supply line appropriately, the specific opening degree is determined according to the actual test, and then proceed to S3;
[0091] S3: Determine the current wind speed V in the gas supply pipeline. If the wind speed is 0, proceed to S4; if the wind speed is not 0, proceed to S6.
[0092] S4: The conclusion is that the user is not using gas at this time, and proceeds to S5;
[0093] S5: Initiate the next dynamic adjustment process;
[0094] S6: Conclude that the user is currently using gas, and proceed to S7;
[0095] S7: Determine if the air compressor is running. If yes, proceed to S8; otherwise, proceed to S18.
[0096] S8: Calculate the time T2 required for the current pressure P of the air supply system to rise to the air compressor shutdown pressure P2, and then proceed to S9;
[0097] S9: Determine whether the time T2 required for the current pressure P of the air supply system to rise to the air compressor shutdown pressure P2 is less than the maximum allowable continuous operating time T4 of the air compressor. If it is less, proceed to S10; if it is not less, proceed to S13.
[0098] S10: Determine if the opening of the electric valve in the gas supply line is 100%. If yes, proceed to S11; otherwise, proceed to S12.
[0099] S11: Maintain the current opening and proceed to S17;
[0100] S12: Increase the opening of the electric valve in the gas supply line and proceed to S17;
[0101] S13: Determine whether the time T2 required for the current pressure of the air supply system to rise to the air compressor shutdown pressure P2 is equal to the maximum allowable continuous running time T4 of the air compressor. If it is equal, proceed to S11; otherwise, proceed to S14.
[0102] S14: Reduce the opening of the electric valve in the gas supply line and proceed to S15;
[0103] S15: Determine if the opening degree of the electric valve in the gas supply line is 0. If it is 0, proceed to S16; otherwise, proceed to S17.
[0104] S16: Keep the air compressor running until the air tank pressure rises to P2, and then proceed to S17;
[0105] S17: Initiate the next dynamic adjustment process;
[0106] S18: Calculate the time T1 required for the current pressure P to drop to the air compressor start-up pressure setpoint P1, and proceed to S19;
[0107] S19: Determine whether the time T1 required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is less than the minimum allowable start interval time T3 of the air compressor minus the time the air compressor has been shut down T0. If it is less, proceed to S20; if it is not less, proceed to S21.
[0108] S20: Reduce the opening of the electric valve in the gas supply line and proceed to S24;
[0109] S21: Determine whether the time T1 required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is equal to the air compressor's minimum allowable starting interval time T3 minus the air compressor's downtime T0. If it is equal, proceed to S22; otherwise, proceed to S23.
[0110] S22: Maintain the current opening and proceed to S27;
[0111] S23: Increase the opening of the electric valve in the gas supply line and proceed to S27;
[0112] S24: Determine if the opening degree of the electric valve in the gas supply line is 0. If it is 0, proceed to S25; otherwise, proceed to S27.
[0113] S25: Time the air compressor to meet the minimum allowable start interval time. The specific time is equal to the minimum allowable start interval time T3 of the air compressor minus the current downtime T0 of the air compressor, and then proceed to S26.
[0114] S26: Start the air compressor to increase the pressure in the air tank to P2, and then proceed to S27;
[0115] S27: Initiate the next dynamic adjustment process.
Claims
1. A method for adjusting the output volume of a system based on the gas supply capacity of a compressed gas system, wherein the system for adjusting the output volume of a compressed gas system includes a gas supply module (1) for supplying gas, the gas supply module (1) is connected to a data acquisition module (3) for acquiring its parameters, the gas supply module (1) is connected to a user terminal (5) through a gas consumption adjustment module (4), and the gas supply module (1), the data acquisition module (3) and the gas consumption adjustment module (4) are simultaneously connected to a calculation adjustment module (2); The acquisition module (3) includes a pressure sensor and a wind speed sensor connected to the gas storage tank, and is used to acquire the pressure of the gas storage tank and the wind speed during the gas supply process, respectively. Its features are, The adjustment method includes, firstly, defining the following data: The real-time pressure value of the gas storage tank is P, which is the pressure value of the gas storage tank collected in real time by the pressure sensor. The pressure change rate of the gas storage tank is PV, which is calculated in real time based on the collected pressure values; The starting pressure setting of the air compressor is P1; The difference between the current pressure P and the air compressor starting pressure setpoint P1 is ΔP1, where ΔP1 = P - P1; The time required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is T1, where T1 = ΔP1 / PV; Air compressor stop pressure setpoint P2; The difference between the current pressure P and the air compressor's stop pressure setpoint P2 is ΔP2, where ΔP2 = P2 - P; The time required for the current pressure P to rise to the compressor's stop pressure setpoint P2 is T2, where T2 = ΔP2 / PV; The air compressor has been out of service for time T0; The minimum allowable start-up interval T3 for the air compressor; The maximum allowable continuous operating time of the air compressor is T4; The real-time wind speed from the wind speed sensor is V; The specific implementation process of the adjustment method is as follows: The acquisition module (3) collects the real-time operating status of the air compressor, the pressure change of the air supply system, and the wind speed of the air supply pipeline. Then, it executes the dynamic adjustment process. After the process starts, the electric valve of the air supply pipeline is opened appropriately. The wind speed sensor determines whether the user is using air. If no air is being used, the current adjustment process ends and the next process begins. If the user is using air, the air compressor is determined to be running. The pressure change rate PV of the air tank is collected in real time through the pressure sensor. When the air compressor is not running, the calculation adjustment module (4) calculates the time T1 required for P to drop to P1. The size of T1 and T3-T0 is compared. If T1 is less than T3-T0, the opening of the electric valve of the air supply pipeline is reduced. If the electric valve is not fully closed at this time, the next dynamic adjustment process begins. If the electric valve is fully closed at this time, the air compressor is started after the minimum start interval time is met. The air supply system pressure rises to P2, and then enters the next dynamic adjustment process. If T1 = T3 - T0, the current opening is maintained and the next dynamic adjustment process is entered directly. When the air compressor is running, the time T2 required to rise to the air compressor stop pressure setpoint P2 is calculated by the calculation and adjustment module. The values of T2 and T4 are compared. If T2 is less than T4, it is first determined whether the opening of the electric valve in the air supply line is 100%. If it is, the 100% opening is maintained and the next dynamic adjustment process is entered. If the electric valve opening is not 100%, the electric valve opening is increased and the next dynamic adjustment process is entered. If T2 = T4, the current opening is maintained and the next dynamic adjustment process is entered. If T2 is greater than T4, the electric valve opening is decreased. If the electric valve is not fully closed, the next dynamic adjustment process is entered. If the electric valve has been adjusted to be fully closed, the air compressor is kept running and the air supply system pressure is raised to P2.
2. The method for adjusting the output air volume of a system based on the air supply capacity of a compressed air system according to claim 1, characterized in that: The air supply module (1) includes an air compressor, which is connected to an air storage tank.
3. The method for adjusting the output air volume of a system based on the air supply capacity of a compressed air system according to claim 1, characterized in that: The gas consumption regulating module (4) uses an electric valve.
4. The method for adjusting the output air volume of a system based on the air supply capacity of a compressed air system according to claim 1, characterized in that, The system collects relevant data in real time through the acquisition module (3), analyzes the data through the calculation and adjustment module (2), and then feeds back to control the gas consumption adjustment module (4). The maximum gas consumption of the user terminal (5) is dynamically adjusted through the gas consumption adjustment module (4) to achieve real-time control of the gas supply system pressure and ensure that the air compressor does not operate under overload.
5. The method for adjusting the output air volume of a system based on the air supply capacity of a compressed air system according to claim 1, characterized in that: The maximum gas consumption adjustment range of the user terminal (5) is determined based on actual tests.
6. The method for adjusting the output air volume of a system based on the air supply capacity of a compressed air system according to claim 1, characterized in that, The system collects real-time data on the air compressor's operation, air supply system pressure changes, and air supply pipeline velocity. This data is then sent to the calculation and adjustment module, which uses this data to make judgments and executes the following specific processes: S0: Start the dynamic adjustment process and proceed to S1; S1: Determine the opening degree of the electric valve in the gas supply line. If the opening degree is 0, proceed to S2; if the opening degree is not 0, proceed to S3. S2: Issue a command to open the electric valve of the gas supply line appropriately, the specific opening degree is determined according to the actual test, and then proceed to S3; S3: Determine the current wind speed V in the gas supply pipeline. If the wind speed is 0, proceed to S4; if the wind speed is not 0, proceed to S6. S4: The conclusion is that the user is not using gas at this time, and proceeds to S5; S5: Initiate the next dynamic adjustment process; S6: Conclude that the user is currently using gas, and proceed to S7; S7: Determine if the air compressor is running. If yes, proceed to S8; otherwise, proceed to S18. S8: Calculate the time T2 required for the current pressure P of the air supply system to rise to the air compressor shutdown pressure P2, and then proceed to S9; S9: Determine whether the time T2 required for the current pressure P of the air supply system to rise to the air compressor shutdown pressure P2 is less than the maximum allowable continuous operating time T4 of the air compressor. If it is less, proceed to S10; if it is not less, proceed to S13. S10: Determine if the opening of the electric valve in the gas supply line is 100%. If yes, proceed to S11; otherwise, proceed to S12. S11: Maintain the current opening and proceed to S17; S12: Increase the opening of the electric valve in the gas supply line and proceed to S17; S13: Determine whether the time T2 required for the current pressure of the air supply system to rise to the air compressor shutdown pressure P2 is equal to the maximum allowable continuous running time T4 of the air compressor. If it is equal, proceed to S11; otherwise, proceed to S14. S14: Reduce the opening of the electric valve in the gas supply line and proceed to S15; S15: Determine if the opening degree of the electric valve in the gas supply line is 0. If it is 0, proceed to S16; otherwise, proceed to S17. S16: Keep the air compressor running until the air tank pressure rises to P2, and then proceed to S17; S17: Initiate the next dynamic adjustment process; S18: Calculate the time T1 required for the current pressure P to drop to the air compressor start-up pressure setpoint P1, and proceed to S19; S19: Determine whether the time T1 required for the current pressure P to drop to the air compressor start-up pressure setpoint P1 is less than the minimum allowable start-up interval time T3 of the air compressor minus the time the air compressor has been shut down T0. If it is less, proceed to S20; if it is not less, proceed to S21. S20: Reduce the opening of the electric valve in the gas supply line and proceed to S24; S21: Determine whether the time T1 required for the current pressure P to drop to the air compressor's starting pressure setpoint P1 is equal to the air compressor's minimum allowable starting interval time T3 minus the air compressor's downtime T0. If it is equal, proceed to S22; otherwise, proceed to S23. S22: Maintain the current opening and proceed to S27; S23: Increase the opening of the electric valve in the gas supply line and proceed to S27; S24: Determine if the opening degree of the electric valve in the gas supply line is 0. If it is 0, proceed to S25; otherwise, proceed to S27. S25: Time the air compressor to meet the minimum allowable start interval time. The specific time is equal to the minimum allowable start interval time T3 of the air compressor minus the current downtime T0 of the air compressor, and then proceed to S26. S26: Start the air compressor to increase the pressure in the air tank to P2, and then proceed to S27; S27: Initiate the next dynamic adjustment process.
Citation Information
Patent Citations
Control method for starting and stopping medical air compressor
CN102410190A
Air compressor energy saving control method, device and system
CN106499617A