A control method, device, electronic equipment, and storage medium for an air compressor station.

Abstract

This application discloses a control method, device, electronic equipment, and storage medium for an air compressor station, relating to the field of automation control technology. The method includes: determining the start / stop mode of the target air compressor unit based on a preset header pressure threshold range of the air supply header under the target air compressor station and the output pressure of the target air compressor unit under the target air compressor station in its current state; determining the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and a preset pipeline pressure threshold; and determining whether the initial opening degree of the inlet guide vane valve needs to be adjusted based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline within a preset time. The embodiments provided in this application improve the response speed and accuracy of the guide vane valve opening, reduce the probability of the target air compressor unit operating in an inefficient load range for extended periods, and avoid energy waste.

Description

Technical Field

[0001] This application relates to the field of automation control technology, and in particular to a control method, device, electronic equipment and storage medium for an air compressor station. Background Technology

[0002] Currently, the traditional method of controlling air compressor stations mainly involves manually deciding to start and stop the air compressor unit based on the specific conditions of the supply pipeline pressure and the terminal pressure (such as through communication between operators or telephone calls). Before starting, the start and stop conditions of the air compressor need to be manually confirmed.

[0003] However, remote or local manual control of the unit's start-up and shutdown can lead to delays. Furthermore, the air compressor unit's control method is based on an outlet pressure setting mode, meaning the unit adjusts the opening of the inlet and outlet guide vane valves in real time according to the outlet pressure. This control method relies solely on a single outlet pressure to determine the guide vane valve opening, which not only results in a slow response from the guide vane valve but also leads to poor accuracy in determining the guide vane valve opening under a single condition. In addition, after adjusting the guide vane valve, traditional units may experience prolonged periods of inefficient operation within the air compressor's operating range, resulting in energy waste. Summary of the Invention

[0004] This application provides a control method, device, electronic equipment, and storage medium for an air compressor station. The embodiments provided in this application solve the technical problems of slow response and poor accuracy of guide vane valves in the prior art, as well as the long-term operation of air compressor units in the inefficient load range, resulting in energy waste. The embodiments provided in this application improve the response speed and opening accuracy of the guide vane valve, reduce the probability of the target air compressor unit operating in the inefficient load range for a long time, and avoid energy waste.

[0005] In a first aspect, this application provides a control method for an air compressor station, the control method comprising:

[0006] Based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state, the start-stop mode of the target air compressor unit is determined.

[0007] When the target air compressor unit is in unloaded mode, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold.

[0008] When the target air compressor unit is in the on mode, based on the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure of the pipeline network within a preset time, it is determined whether the initial opening degree of the inlet guide vane valve needs to be adjusted.

[0009] If necessary, the load of other air compressor units, except for the target air compressor unit, is adjusted based on the target opening degree of the adjusted inlet guide vane valve to achieve control and regulation of the entire target air compressor station.

[0010] In one feasible implementation, the preset header pressure threshold range includes a preset header pressure upper limit threshold and a preset header pressure lower limit threshold. The step of determining the start / stop mode of the target air compressor unit based on the preset header pressure threshold range of the air supply header under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state includes:

[0011] If the output pressure of the target air compressor unit under the target air compressor station is greater than the preset lower limit threshold of the main pipe pressure in the current state, it is determined that the target air compressor unit enters the start-up mode.

[0012] If the output pressure is greater than the preset upper limit threshold of the main pipe pressure, the target air compressor unit is determined to enter the stop mode.

[0013] In one feasible implementation, determining the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and a preset pipeline pressure threshold when the target air compressor unit is in an unloaded mode includes:

[0014] When the target air compressor unit is in unloaded mode, based on the pipeline pressure in the target air compressor unit and the external threshold level-pipeline pressure threshold data table, determine the preset threshold level corresponding to the pipeline pressure and the preset pipeline pressure threshold under the target threshold level.

[0015] Determine the pipeline pressure difference between the pipeline pressure and the preset pipeline pressure threshold;

[0016] Based on the pipeline pressure difference, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined.

[0017] In one feasible implementation, the initial opening degree includes a first initial opening degree and a second initial opening degree, and determining the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference includes:

[0018] If the pipeline pressure difference is greater than the pipeline pressure difference threshold, then the inlet guide vane valve in the target air compressor unit is determined to be the first initial opening.

[0019] If the pipeline pressure difference is less than or equal to the pipeline pressure difference threshold, then the inlet guide vane valve in the target air compressor unit is determined to be the second initial opening, wherein the first initial opening is greater than the second initial opening.

[0020] In one feasible implementation, the step of determining whether the initial opening of the inlet guide vane valve needs to be adjusted based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline network within a preset time when the target air compressor unit is in the open mode includes:

[0021] When the target air compressor unit is in the open mode, determine the pressure change value between the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure of the pipeline network within a preset time.

[0022] Based on the pressure change value and the preset pressure change threshold range, it is determined whether the initial opening of the inlet guide vane valve needs to be adjusted.

[0023] In one feasible implementation, the preset pressure change threshold range includes a preset upper limit value and a preset lower limit value for pressure change. The step of determining whether to adjust the initial opening of the inlet guide vane valve based on the pressure change value and the preset pressure change threshold range includes:

[0024] If the pressure change value is greater than the preset upper limit of pressure change within a preset time, or if the pressure change value is less than the preset lower limit of pressure change within a preset time, then the initial opening of the inlet guide vane valve needs to be adjusted.

[0025] If the pressure change value is less than or equal to the preset upper limit of pressure change within a preset time and the pressure change value is greater than or equal to the preset lower limit of pressure change within a preset time, then there is no need to adjust the initial opening of the inlet guide vane valve.

[0026] In one feasible implementation, the step of adjusting the load on other air compressor units besides the target air compressor unit based on the adjusted target opening degree of the inlet guide vane valve, if necessary, includes:

[0027] If the initial opening of the inlet guide vane valve needs to be adjusted, the change in the opening of the inlet guide vane valve is determined based on the historical compressed air consumption data table of the target air compressor unit.

[0028] The target opening of the inlet guide vane valve is determined based on the difference between the initial opening and the variable opening of the inlet guide vane valve.

[0029] When the inlet guide vane valve is at the target opening degree, the other air compressor units in the target air compressor station, excluding the target air compressor unit, are controlled to reduce / increase their loads.

[0030] In a second aspect, this application provides a control device for an air compressor station, the control device comprising:

[0031] The first determining module is used to determine the start-stop mode of the target air compressor unit based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state.

[0032] The second determining module is used to determine the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and a preset pipeline pressure threshold when the target air compressor unit is in the unloaded mode.

[0033] The third determining module is used to determine whether the initial opening degree of the inlet guide vane valve needs to be adjusted based on the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure of the pipeline network within a preset time when the target air compressor unit is in the open mode.

[0034] The adjustment module is used to adjust the load of other air compressor units besides the target air compressor unit based on the adjusted target opening degree of the inlet guide vane valve, if necessary, so as to achieve control and regulation of the entire target air compressor station.

[0035] In a third aspect of this application, an electronic device is provided, comprising: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus, and the machine-readable instructions are executed by the processor to perform the steps of the control method for the air compressor station as described above.

[0036] In a fourth aspect of this application, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, performs the steps of the control method for an air compressor station as described above.

[0037] Compared with the prior art, the control method, device, electronic equipment, and storage medium for air compressor stations provided in this application determine the start-stop mode of the target air compressor unit based on the preset header pressure threshold range of the air supply header under the target air compressor station and the output pressure of the target air compressor unit under the target air compressor station in the current state. Furthermore, when the target air compressor unit is in the unloaded mode, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold. Then, when the target air compressor unit is in the open mode... In this mode, based on the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure output by the pipeline network within a preset time, it is determined whether the initial opening of the inlet guide vane valve needs to be adjusted. If necessary, based on the target opening of the adjusted inlet guide vane valve, the load of other air compressor units in the target air compressor station, excluding the target air compressor unit, is adjusted to achieve control and regulation of the entire target air compressor station. The embodiments provided in this application improve the response speed and accuracy of the guide vane valve opening, reduce the probability of the target air compressor unit operating in an inefficient load range for a long time, and avoid energy waste. Attached Figure Description

[0038] Figure 1 This paper shows one of the flowcharts of a control method for an air compressor station provided in an embodiment of this application;

[0039] Figure 2 This paper shows a structural block diagram of a control device for an air compressor station provided in an embodiment of this application;

[0040] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown.

[0041] Figure 2 and Figure 3 The correspondence between the figure labels and figure titles in the accompanying drawings is as follows:

[0042] 200 Control device for air compressor station; 210 First determination module; 220 Second determination module; 230 Third determination module; 240 Adjustment module; 300 Electronic device; 310 Processor; 320 Memory; 330 Bus. Detailed Implementation

[0043] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0044] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0045] First, the applicable application scenarios of this application will be introduced. The embodiments provided in this application are applicable to the field of automation control technology.

[0046] Currently, the traditional method of controlling air compressor stations mainly involves manually deciding to start and stop the air compressor unit based on the specific conditions of the supply pipeline pressure and the terminal pressure (such as through communication between operators or telephone calls). Before starting, the start and stop conditions of the air compressor need to be manually confirmed.

[0047] Currently, air compressor units primarily use a local control cabinet to monitor the inlet guide vane valve, bypass guide vane valve, and unit outlet air pressure status data in real time. This allows for intervention in the operating load of individual air compressor units. If the change in outlet air pressure exceeds the set upper pressure limit within a certain period, the corresponding air compressor unit is controlled to reduce the opening of the inlet guide vane valve or increase the opening of the bypass guide vane valve, thereby reducing the load of the corresponding unit and lowering the unit's outlet air pressure. Conversely, if the change in outlet air pressure is below the set lower pressure limit within a certain period, the corresponding air compressor unit is controlled to increase the opening of the inlet guide vane valve or decrease the opening of the bypass guide vane valve, thereby increasing the load of the corresponding unit and increasing the unit's outlet air pressure.

[0048] However, remote or local manual control of the unit's start-up and shutdown can lead to delays. Furthermore, the air compressor unit's control method is based on an outlet pressure setting mode, meaning the unit adjusts the opening of the inlet and outlet guide vane valves in real time according to the outlet pressure. This control method relies solely on a single outlet pressure to determine the guide vane valve opening, which not only results in a slow response from the guide vane valve but also leads to poor accuracy in determining the guide vane valve opening under a single condition. In addition, after adjusting the guide vane valve, traditional units may experience prolonged periods of inefficient operation within the air compressor's operating range, resulting in energy waste.

[0049] Based on this, the embodiments of this application provide a control method, device, electronic equipment, and storage medium for an air compressor station. The embodiments provided by this application solve the technical problems of slow response and poor accuracy of the guide vane valve in the prior art, as well as the long-term operation of the air compressor unit in the inefficient load range, resulting in energy waste. The embodiments provided by this application improve the response speed and opening accuracy of the guide vane valve, reduce the probability of the target air compressor unit operating in the inefficient load range for a long time, and avoid energy waste.

[0050] Please see Figure 1 , Figure 1 This is one of the flowcharts of a control method for an air compressor station provided in an embodiment of this application, such as... Figure 1 As shown, the control method for the air compressor station includes the following steps:

[0051] S101. Based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state, determine the start-up and shutdown mode of the target air compressor unit.

[0052] In this step, the embodiment provided in this application compares the output pressure of the selected centrifugal target air compressor unit under the target air compressor station with the preset pressure threshold range of the air supply header in the current state. Based on the comparison result, an equivalent integrated passive analog signal is output and connected to the corresponding air compressor electrical control cabinet to cause the PID adjustment module in the target air compressor unit to automatically adjust and determine the start-stop mode of the target air compressor unit (i.e., to achieve automatic start-stop by automatically adjusting the opening of the intake valve of the target air compressor unit). This application solves the technical barrier that traditional air compressors require manual judgment of start-stop and realizes automated start-stop judgment.

[0053] In this application, it is assumed that the DC current signal of the integrated analog signal in the embodiments provided by this application may be specifically, but not limited to, 4 to 20mA.

[0054] Understandably, the embodiments provided in this application connect an external PLC control system to the existing target air compressor station to be tested, thereby modifying the relevant circuits of the existing target air compressor station. Assuming that the embodiments provided in this application use relay switching to connect the existing target air compressor station and the external PLC control system, and when the relay is not engaged, the target air compressor station maintains its own signal control mode; when the relay is engaged, various types of information collected in the target air compressor are transmitted to the external PLC control system.

[0055] In this application, it is assumed that the various types of collected information in the embodiments include, but are not limited to, the preset main pipe pressure threshold range of the air supply main pipe and the output pressure of the target air compressor unit in the target air compressor station under the current state.

[0056] In the above, it is assumed that the relay activation mode in the embodiments provided in this application can be set as: pressure indirect control mode, which can be specifically but not limited to being labeled as: "0" mode.

[0057] Here, the model of the external PLC control system in the embodiments provided in this application can be customized according to different application scenarios and usage conditions. It is assumed that the specific model of the PLC control system in the embodiments provided in this application is: Siemens 300 PLC control system.

[0058] S102. When the target air compressor unit is in the unloaded mode, determine the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold.

[0059] In this step, when the loading and unloading mode of the target air compressor unit is not triggered (i.e., when the guide vane valve is positioned in "1" mode), that is, when the guide vane valve provided in this application is not operating stably, the initial opening degree of the inlet guide vane valve is determined by segmenting and classifying the pressure difference between the pipeline pressure in the target air compressor unit and multiple preset pipeline pressure thresholds.

[0060] Understandably, there are multiple (at least one) preset pipeline pressure thresholds in this embodiment. Therefore, it is necessary to calculate the difference between the pipeline pressure in the target air compressor unit and the closest preset pipeline pressure threshold. Then, based on the calculated difference, the initial opening of the inlet guide vane valve in the target air compressor unit is determined. This initial opening ensures that the actual pipeline pressure difference between the inlet guide vane valve at the initial opening and the corresponding preset pipeline pressure threshold is stable within a certain range (e.g., ±0.05 bar, which can be adaptively adjusted according to the actual application scenario). After determining the initial opening of the inlet guide vane valve in the target air compressor unit, the embodiment provided in this application can directly fix the inlet guide vane valve at the current position according to the initial opening, so as to stabilize the inlet guide vane valve when the loading / unloading mode is not triggered. This embodiment also enables the inlet guide vane valve to adjust quickly when the pipeline pressure difference is large and adjust slowly when the pipeline pressure difference is small, so as to stabilize it within a certain range (e.g., ±0.05 bar).

[0061] S103. When the target air compressor unit is in the open mode, based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline within a preset time, determine whether the initial opening degree of the inlet guide vane valve needs to be adjusted.

[0062] In this step, after the initial opening of the inlet guide vane valve is determined, the target air compressor unit is started. At this time, the inlet pressure output by the inlet guide vane valve within a preset time, the pressure output by the bypass guide vane valve within a preset time, and the pipeline outlet pressure output by the pipeline within a preset time are monitored in real time. Based on the pressure change between the inlet pressure and the pipeline outlet pressure, it is determined whether the initial opening of the inlet guide vane valve needs to be adjusted.

[0063] Understandably, the embodiments provided in this application determine the operating efficiency of the target air compressor unit based on the historical compressed air consumption data table and the efficiency curve of the target air compressor unit. This application determines, through calculation, that the operating efficiency is maximized when the opening degree of the variable inlet guide vane valve is mainly in the range of 30% to 70%.

[0064] S104. If necessary, based on the target opening degree of the adjusted inlet guide vane valve, the load of other air compressor units besides the target air compressor unit shall be adjusted to achieve control and regulation of the entire target air compressor station.

[0065] In this step, when it is determined that the initial opening of the inlet guide vane valve needs to be adjusted, the initial opening of the corresponding inlet guide vane valve is adjusted accordingly. After the adjustment reaches the target opening, the load of other air compressor units except the target air compressor station is adjusted to prevent the target air compressor station from working in the inefficient load range for a long time, so as to achieve high load operation of the target air compressor station, thereby improving the efficiency and practicality of the target air compressor station.

[0066] Compared with the prior art, the control method for an air compressor station provided in this application determines the start / stop mode of the target air compressor unit based on the preset header pressure threshold range of the air supply header under the target air compressor station and the output pressure of the target air compressor unit under the target air compressor station in the current state. Furthermore, when the target air compressor unit is in the unloaded mode, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold. Then, when the target air compressor unit is in the open mode, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined based on the pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold. The inlet pressure output by the guide vane valve within a preset time and the outlet pressure output by the pipeline network within a preset time are used to determine whether the initial opening of the inlet guide vane valve needs to be adjusted. If necessary, based on the target opening of the adjusted inlet guide vane valve, the load of other air compressor units in the target air compressor station, excluding the target air compressor unit, is adjusted to achieve control and regulation of the entire target air compressor station. The embodiments provided in this application improve the response speed and accuracy of the guide vane valve opening, reduce the probability of the target air compressor unit operating in an inefficient load range for a long time, and avoid energy waste.

[0067] In one embodiment, the preset main pipe pressure threshold range includes a preset upper limit threshold and a preset lower limit threshold, and step S101 includes the following sub-steps:

[0068] Sub-step 1011: If the output pressure of the target air compressor unit under the target air compressor station is greater than the preset lower limit threshold of the main pipe pressure in the current state, determine that the target air compressor unit enters the start mode.

[0069] In this step, if the output pressure of the target air compressor unit in the current state exceeds the preset lower limit threshold of the main pipe pressure, it means that the target air compressor unit needs to be operated. At this time, the target air compressor unit is controlled to enter the start mode.

[0070] Sub-step 1012: If the output pressure is greater than the preset upper limit threshold of the main pipe pressure, determine that the target air compressor unit enters the stop mode.

[0071] In this step, if the output pressure of the target air compressor unit in the current state exceeds the preset upper threshold of the main pipe pressure, it means that the target air compressor unit needs to be stopped. At this time, the target air compressor unit is controlled to enter the stop mode.

[0072] In one embodiment, step S102 includes the following sub-steps:

[0073] Sub-step S1021: When the target air compressor unit is in unloaded mode, based on the pipeline pressure and external threshold level-pipeline pressure threshold data table in the target air compressor unit, determine the preset threshold level corresponding to the pipeline pressure and the preset pipeline pressure threshold under the target threshold level.

[0074] In this step, when the target air compressor unit is in unloaded mode, the pipeline pressure in the target air compressor unit is first determined. Then, the preset threshold level that is close to the pipeline pressure is found from the external threshold level-pipeline pressure threshold data table, as well as the preset pipeline pressure threshold under the preset threshold level.

[0075] Sub-step S1022: Determine the pipeline pressure difference between the pipeline pressure and the preset pipeline pressure threshold.

[0076] In this step, after determining the preset pipeline pressure threshold at the preset threshold level, the pipeline pressure difference between the pipeline pressure and the preset pipeline pressure threshold is calculated.

[0077] Sub-step S1023: Based on the pipeline pressure difference, determine the initial opening degree of the inlet guide vane valve in the target air compressor unit.

[0078] In this step, if the pipeline pressure difference is greater than the pipeline pressure difference threshold, the inlet guide vane valve in the target air compressor unit is determined to be the first initial opening; if the pipeline pressure difference is less than or equal to the pipeline pressure difference threshold, the inlet guide vane valve in the target air compressor unit is determined to be the second initial opening, wherein the first initial opening is greater than the second initial opening.

[0079] In one embodiment, step S103 includes the following sub-steps:

[0080] Sub-step S1031: When the target air compressor unit is in the open mode, determine the pressure change value between the inlet pressure output by the inlet guide valve within a preset time and the outlet pressure output by the pipeline within a preset time.

[0081] In this step, with the target air compressor unit in the open mode, the inlet pressure of the inlet guide vane valve, the pressure at the bypass guide vane valve, and the corresponding pipeline outlet pressure are monitored in real time, and the pressure change between the inlet pressure of the inlet guide vane valve and the pipeline outlet pressure is calculated in real time within a preset time period.

[0082] Sub-step S1032: Based on the pressure change value and the preset pressure change threshold range, determine whether the initial opening of the inlet guide vane valve needs to be adjusted.

[0083] In this step, if the pressure change value is greater than the preset upper limit of pressure change within a preset time, or less than the preset lower limit of pressure change within a preset time, the initial opening of the inlet guide vane valve needs to be adjusted. In this case, the initial opening of the inlet guide vane valve needs to be increased, and the Siemens 300 PLC control system reduces the load of other air compressor units. If the pressure change value is less than or equal to the preset upper limit of pressure change within a preset time and greater than or equal to the preset lower limit of pressure change within a preset time, the initial opening of the inlet guide vane valve does not need to be adjusted. In this case, the initial opening of the inlet guide vane valve needs to be decreased, and the Siemens 300 PLC control system increases the load of other air compressor units.

[0084] The preset pressure change threshold range in the embodiments provided in this application includes a preset upper limit value for pressure change and a preset lower limit value for pressure change.

[0085] In one embodiment, if necessary, load adjustments are made to other air compressor units besides the target air compressor unit based on the adjusted target opening degree of the inlet guide vane valve, including:

[0086] If the initial opening of the inlet guide vane valve needs to be adjusted, the variable opening of the inlet guide vane valve is determined based on the historical compressed air consumption data of the target air compressor unit. The target opening of the inlet guide vane valve is then determined based on the difference between the initial opening and the variable opening. When the inlet guide vane valve is at the target opening, the load of other air compressor units in the target air compressor station, excluding the target air compressor unit, is reduced or increased.

[0087] Compared with the prior art, the control method for air compressor stations provided in this application determines the start / stop mode of the target air compressor unit based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station and the output pressure of the target air compressor unit under the target air compressor station in the current state. When the target air compressor unit is in the unloaded mode, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold. Then, when the target air compressor unit is in the open mode, the initial opening degree of the inlet guide vane valve is determined based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline pressure within a preset time. The output pipeline outlet pressure determines whether the initial opening of the inlet guide vane valve needs adjustment. If necessary, based on the adjusted target opening of the inlet guide vane valve, the load of other air compressor units in the target air compressor station, excluding the target air compressor unit, is adjusted to achieve control and regulation of the entire target air compressor station. The embodiments provided in this application improve the response speed and accuracy of the guide vane valve opening, reduce the probability of the target air compressor unit operating in an inefficient load range for a long time, avoid energy waste, and enable coordinated control between the target air compressor unit and other air compressor units, thereby improving the efficiency and practicality of the target air compressor station.

[0088] Please see Figure 2 , Figure 2 This is a structural block diagram of a control device for an air compressor station provided in an embodiment of this application, as shown below. Figure 2 As shown, the control device 200 of the air compressor station includes:

[0089] The first determining module 210 is used to determine the start-stop mode of the target air compressor unit based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state.

[0090] The second determining module 220 is used to determine the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold when the target air compressor unit is in the unloaded mode.

[0091] The third determining module 230 is used to determine whether the initial opening degree of the inlet guide vane valve needs to be adjusted based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline within a preset time when the target air compressor unit is in the open mode.

[0092] The adjustment module 240 is used to adjust the load of other air compressor units besides the target air compressor unit based on the target opening degree of the adjusted inlet guide vane valve, if necessary, so as to achieve control and regulation of the entire target air compressor station.

[0093] In one embodiment, the preset main pipe pressure threshold range includes a preset upper limit threshold and a preset lower limit threshold. The first determining module 210 is specifically used for:

[0094] If the output pressure of the target air compressor unit under the target air compressor station is greater than the preset lower limit threshold of the main pipe pressure in the current state, the target air compressor unit is determined to enter the start mode.

[0095] If the output pressure exceeds the preset upper limit threshold of the main pipe pressure, the target air compressor unit will enter the stop mode.

[0096] In one embodiment, the second determining module 220 is specifically used for:

[0097] When the target air compressor unit is in unloaded mode, based on the pipeline pressure and external threshold level-pipeline pressure threshold data table in the target air compressor unit, determine the preset threshold level corresponding to the pipeline pressure and the preset pipeline pressure threshold under the target threshold level.

[0098] Determine the pipeline pressure difference between the pipeline pressure and the preset pipeline pressure threshold.

[0099] Based on the pipeline pressure difference, determine the initial opening degree of the inlet guide vane valve in the target air compressor unit.

[0100] In one embodiment, the initial opening includes a first initial opening and a second initial opening. Determining the initial opening of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference includes:

[0101] If the pipeline pressure difference is greater than the pipeline pressure difference threshold, then the inlet guide vane valve in the target air compressor unit is determined to be at the first initial opening.

[0102] If the pipeline pressure difference is less than or equal to the pipeline pressure difference threshold, then the inlet guide vane valve in the target air compressor unit is determined to be the second initial opening, wherein the first initial opening is greater than the second initial opening.

[0103] In one embodiment, the third determining module 230 is specifically used for:

[0104] With the target air compressor unit in the open mode, determine the pressure change between the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure output by the pipeline network within a preset time.

[0105] Based on the pressure change value and the preset pressure change threshold range, determine whether the initial opening of the inlet guide vane valve needs to be adjusted.

[0106] In one embodiment, the preset pressure change threshold range includes a preset upper limit value and a preset lower limit value for pressure change. Based on the pressure change value and the preset pressure change threshold range, determining whether the initial opening of the inlet guide vane valve needs to be adjusted includes:

[0107] If the pressure change value is greater than the preset upper limit of pressure change within a preset time, or less than the preset lower limit of pressure change within a preset time, the initial opening of the inlet guide vane valve needs to be adjusted.

[0108] If the pressure change value is less than or equal to the preset upper limit of pressure change within a preset time and greater than or equal to the preset lower limit of pressure change within a preset time, then there is no need to adjust the initial opening of the inlet guide vane valve.

[0109] In one embodiment, the adjustment module 240 is specifically used for:

[0110] If the initial opening of the inlet guide vane valve needs to be adjusted, the change in the opening of the inlet guide vane valve is determined based on the historical compressed air consumption data table of the target air compressor unit.

[0111] The target opening of the inlet guide vane valve is determined based on the difference between the initial opening and the variable opening of the inlet guide vane valve.

[0112] With the inlet guide vane valve at the target opening degree, control the other air compressor units in the target air compressor station, excluding the target air compressor unit, to reduce / increase the load.

[0113] The control device 200 for an air compressor station provided in this application embodiment, compared with the prior art, determines the start / stop mode of the target air compressor unit based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state. When the target air compressor unit is in the unloaded mode, it determines the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold. Then, when the target air compressor unit is in the open mode, it determines the initial opening degree of the inlet guide vane valve based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline pressure within a preset time. The system uses the pipeline outlet pressure output within the room to determine whether the initial opening of the inlet guide vane valve needs to be adjusted. If necessary, based on the adjusted target opening of the inlet guide vane valve, the load of other air compressor units in the target air compressor station, excluding the target air compressor unit, is adjusted to achieve control and regulation of the entire target air compressor station. The embodiments provided in this application improve the response speed and accuracy of the guide vane valve opening, reduce the probability of the target air compressor unit operating in an inefficient load range for a long time, avoid energy waste, and enable coordinated control between the target air compressor unit and other air compressor units, thereby improving the efficiency and practicality of the target air compressor station.

[0114] Please see Figure 3 , Figure 3 This application provides a schematic diagram of the structure of an electronic device according to an embodiment of the present application. Figure 3 As shown, the electronic device 300 includes a processor 310, a memory 320, and a bus 330.

[0115] Memory 320 stores machine-readable instructions executable by processor 310. When electronic device 300 is running, processor 310 and memory 320 communicate via bus 330. When the machine-readable instructions are executed by processor 310, they can perform the operations described above. Figure 1 The steps of the control method for the air compressor station in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0116] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can perform the above-described actions. Figure 1 The steps of the control method for the air compressor station in the method embodiment shown are described in detail in the method embodiment, and will not be repeated here.

[0117] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0118] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0119] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0120] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0121] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0122] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0123] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute a control method for an air compressor station.

[0124] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0125] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0126] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0127] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0128] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0129] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0130] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0131] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0132] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A control method for an air compressor station, characterized in that, The control method for the air compressor station includes: Based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state, the start-stop mode of the target air compressor unit is determined. When the target air compressor unit is in unloaded mode, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and the preset pipeline pressure threshold. When the target air compressor unit is in the on mode, based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline network within the preset time, it is determined whether the initial opening degree of the inlet guide vane valve needs to be adjusted. If necessary, the load of other air compressor units, except for the target air compressor unit, shall be adjusted based on the target opening degree of the adjusted inlet guide vane valve in order to achieve control and regulation of the entire target air compressor station. When the target air compressor unit is in the on mode, based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline network within a preset time, it is determined whether the initial opening of the inlet guide vane valve needs to be adjusted, including: When the target air compressor unit is in the open mode, determine the pressure change value between the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure of the pipeline network within a preset time. Based on the pressure change value and the preset pressure change threshold range, determine whether the initial opening of the inlet guide vane valve needs to be adjusted; The preset pressure change threshold range includes a preset upper limit value and a preset lower limit value for pressure change. The step of determining whether to adjust the initial opening of the inlet guide vane valve based on the pressure change value and the preset pressure change threshold range includes: If the pressure change value is greater than the preset upper limit of pressure change within a preset time, or if the pressure change value is less than the preset lower limit of pressure change within a preset time, then the initial opening of the inlet guide vane valve needs to be adjusted. If the pressure change value is less than or equal to the preset upper limit of pressure change within a preset time and the pressure change value is greater than or equal to the preset lower limit of pressure change within a preset time, then there is no need to adjust the initial opening of the inlet guide vane valve.

2. The control method for the air compressor station according to claim 1, characterized in that, The preset header pressure threshold range includes a preset header pressure upper limit threshold and a preset header pressure lower limit threshold. The step of determining the start / stop mode of the target air compressor unit based on the preset header pressure threshold range of the air supply header under the target air compressor station and the output pressure of the target air compressor unit under the target air compressor station in its current state includes: If the output pressure of the target air compressor unit under the target air compressor station is greater than the preset lower limit threshold of the main pipe pressure in the current state, it is determined that the target air compressor unit enters the start-up mode. If the output pressure is greater than the preset upper limit threshold of the main pipe pressure, the target air compressor unit is determined to enter the stop mode.

3. The control method for the air compressor station according to claim 1, characterized in that, The step of determining the initial opening degree of the inlet guide vane valve in the target air compressor unit, based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and a preset pipeline pressure threshold when the target air compressor unit is in unloaded mode, includes: When the target air compressor unit is in unloaded mode, based on the pipeline pressure and external threshold level-pipeline pressure threshold data table in the target air compressor unit, determine the preset threshold level corresponding to the pipeline pressure and the preset pipeline pressure threshold under the preset threshold level. Determine the pipeline pressure difference between the pipeline pressure and the preset pipeline pressure threshold; Based on the pipeline pressure difference, the initial opening degree of the inlet guide vane valve in the target air compressor unit is determined.

4. The control method for the air compressor station according to claim 3, characterized in that, The initial opening degree includes a first initial opening degree and a second initial opening degree. Determining the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference includes: If the pipeline pressure difference is greater than the pipeline pressure difference threshold, then the inlet guide vane valve in the target air compressor unit is determined to be the first initial opening. If the pipeline pressure difference is less than or equal to the pipeline pressure difference threshold, then the inlet guide vane valve in the target air compressor unit is determined to be the second initial opening, wherein the first initial opening is greater than the second initial opening.

5. The control method for the air compressor station according to claim 1, characterized in that, If necessary, based on the adjusted target opening degree of the inlet guide vane valve, load adjustments are made to other air compressor units besides the target air compressor unit, including: If the initial opening of the inlet guide vane valve needs to be adjusted, the change in the opening of the inlet guide vane valve is determined based on the historical compressed air consumption data table of the target air compressor unit. The target opening of the inlet guide vane valve is determined based on the difference between the initial opening and the variable opening of the inlet guide vane valve. When the inlet guide vane valve is at the target opening degree, the other air compressor units in the target air compressor station, excluding the target air compressor unit, are controlled to reduce / increase their loads.

6. A control device for an air compressor station, characterized in that, The control device for the air compressor station includes: The first determining module is used to determine the start-stop mode of the target air compressor unit based on the preset main pipe pressure threshold range of the air supply main pipe under the target air compressor station to be detected and the output pressure of the target air compressor unit under the target air compressor station in the current state. The second determining module is used to determine the initial opening degree of the inlet guide vane valve in the target air compressor unit based on the pipeline pressure difference between the pipeline pressure in the target air compressor unit and a preset pipeline pressure threshold when the target air compressor unit is in the unloaded mode. The third determining module is used to determine whether the initial opening degree of the inlet guide vane valve needs to be adjusted based on the inlet pressure output by the inlet guide vane valve within a preset time and the pipeline outlet pressure output by the pipeline network within the preset time when the target air compressor unit is in the open mode. The adjustment module is used to adjust the load of other air compressor units besides the target air compressor unit based on the adjusted target opening degree of the inlet guide vane valve, if necessary, so as to realize the control and regulation of the entire target air compressor station. The third determining module is specifically used for: When the target air compressor unit is in the open mode, determine the pressure change value between the inlet pressure output by the inlet guide vane valve within a preset time and the outlet pressure of the pipeline network within a preset time. Based on the pressure change value and the preset pressure change threshold range, determine whether the initial opening of the inlet guide vane valve needs to be adjusted. The preset pressure change threshold range includes a preset upper limit and a preset lower limit. Based on the pressure change value and the preset pressure change threshold range, it is determined whether the initial opening of the inlet guide vane valve needs to be adjusted, including: If the pressure change value is greater than the preset upper limit of pressure change within a preset time, or less than the preset lower limit of pressure change within a preset time, the initial opening of the inlet guide vane valve needs to be adjusted. If the pressure change value is less than or equal to the preset upper limit of pressure change within a preset time and greater than or equal to the preset lower limit of pressure change within a preset time, then there is no need to adjust the initial opening of the inlet guide vane valve.

7. An electronic device, characterized in that, include: The device includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of the control method for the air compressor station as described in any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, performs the steps of the control method for the air compressor station as described in any one of claims 1-5.

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