CN117311430B - Energy-saving digital energy air compression station control system - Google Patents
Energy-saving digital energy air compression station control system Download PDFInfo
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- CN117311430B CN117311430B CN202311611621.9A CN202311611621A CN117311430B CN 117311430 B CN117311430 B CN 117311430B CN 202311611621 A CN202311611621 A CN 202311611621A CN 117311430 B CN117311430 B CN 117311430B
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- 230000006835 compression Effects 0.000 title claims abstract description 47
- 238000007906 compression Methods 0.000 title claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 66
- 238000012545 processing Methods 0.000 claims abstract description 56
- 238000005265 energy consumption Methods 0.000 claims abstract description 40
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 26
- 238000012937 correction Methods 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an energy-saving digital energy air compression station control system, and belongs to the technical field of air compression stations. The system comprises a plurality of air compressors, a pipe network, a data processing terminal, a detection module and an energy consumption monitoring module, wherein the air compressors are communicated with an air inlet of a load end through the pipe network, and the data processing terminal is in communication connection with the energy consumption monitoring module and the detection module; the operation parameters of the air compression station are divided into three layers according to the air circulation path; the detection module comprises a plurality of detection sensors which respectively detect the operation parameters and sequentially transmit detection results to the data processing terminal; the data processing terminal compares the received value with the set value, obtains an error value according to the comparison result, carries out layer-by-layer back propagation on the error value, adjusts the layer to obtain a forward value, carries out forward propagation to adjust subsequent parameters, and solves the problem that the air compression station is high in energy consumption under different use conditions.
Description
Technical Field
The invention belongs to the technical field of air compression stations, and particularly relates to an energy-saving digital energy air compression station control system.
Background
The air compression station is a compressed air station and consists of an air compressor, an air storage tank, air treatment and purification equipment and a cold dryer; air compression stations are common power systems in public works, and consume a large amount of electric energy and waste electric energy to a certain extent. The conventional energy-saving mode of the air compression station is mainly to install a frequency converter, but the limitation of energy saving only by the frequency converter is small, and the energy saving cannot be well performed.
Because the working efficiency of the existing air compression station is reduced along with the time, and the internal operation parameters of the air compression station cannot be changed according to different output quantities in the operation process of the existing air compression station, and because the internal operation parameters of the air compression station are in a constant state, when the output quantity is reduced, the internal parameters of the air compression station cannot be changed due to the reduction of the processing quantity, so that the energy consumption is increased, and a better energy-saving effect cannot be achieved.
For example, chinese patent publication No. CN104847637B discloses a method for controlling compressed air output of an air compression station, wherein the method is that the air compression station records a first usage amount and a first predicted usage amount of the compressed air supplied to the pneumatic device at a first time; the air compression station estimates a second predicted usage amount prepared for supplying to the pneumatic device at a second time according to the first usage amount and the first predicted usage amount by an exponential weight moving average method; finally, the air compression station creates and delivers the compressed air for use by the pneumatic device at the second time based on the second predicted usage.
The control method can control the output quantity of the conveyed compressed air through the second predicted use quantity to avoid waste and reduce energy consumption, but the energy consumption of the air compression station is related to the inlet air temperature and humidity, the pipe network pressure of the air compressor, the loading and unloading pressure and other factors.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an energy-saving digital energy air compression station control system, which solves the problem of high energy consumption of an air compression station under different use conditions.
The aim of the invention can be achieved by the following technical scheme: the energy-saving digital energy air compression station control system comprises a plurality of air compressors, a pipe network, a data processing terminal, a detection module and an energy consumption monitoring module, wherein the air compressors are communicated with an air inlet of a load end through the pipe network, and the data processing terminal is in communication connection with the energy consumption monitoring module and the detection module;
the operation parameters of the air compression station are divided into three layers according to an air flow path, namely the temperature and the humidity of an air inlet end of the air compressor, the flow and the exhaust pressure of an exhaust end and the loading pressure and the flow of an air inlet of a load end in sequence;
the detection module comprises a plurality of detection sensors which respectively detect the operation parameters and sequentially transmit detection results to the data processing terminal;
the data processing terminal compares the received value with a set value, obtains error values according to the comparison result, and carries out layer-by-layer back propagation on the error values, adjusts the layers to obtain a forward value and carries out forward propagation to adjust subsequent parameters.
As a preferred embodiment of the present invention, the second layer of operating parameters further includes a loading pressure of the pipe network, an internal pressure of the pipe network, and an unloading pressure of the pipe network.
As a preferred technical scheme of the invention, the operation frequency and the operation time of the air compressor are interference items of operation parameters.
As a preferable technical scheme of the invention, the detection module is provided with a plurality of detection points when detecting the pressure in the pipe network, and the detection points are weighted and averaged to obtain an average value as a detection result.
As a preferable technical scheme of the invention, the air compressor further comprises an air inlet adjusting module, wherein the air inlet adjusting module is communicated with an air inlet end of the air compressor, and the air inlet adjusting module is in communication connection with the data processing terminal and controls the air inlet temperature and humidity of the air compressor.
As a preferable technical scheme of the invention, the system further comprises an air storage tank, wherein the air storage tank is communicated with the pipe network, and the air storage tank is in communication connection with the data processing terminal and controls the loading pressure of the pipe network.
As a preferable technical scheme of the invention, the air conditioner further comprises a cold dryer, one end of the cold dryer is communicated with the air outlet end of the air storage tank, and the other end of the cold dryer is communicated with the load air inlet through a pipe network.
As a preferable technical scheme of the invention, the system further comprises a cloud platform which is respectively in communication connection with the energy consumption monitoring module, the detection module and the data processing terminal, wherein the cloud platform records the processing result of each data processing terminal and predicts the next processing result according to the detection result of the detection module.
As a preferable technical scheme of the invention, the air inlet end of the air compressor is independently communicated with a pipe network.
The beneficial effects of the invention are as follows:
1. the detection module is used for detecting parameters of each layer of the air compression station and transmitting detection results to the data processing terminal, the data processing terminal compares the detection results of the detection module with preset values according to the detection results of the energy consumption monitoring module, the obtained error data are reversely transmitted to readjust the parameters of each layer, the forward data after adjustment are continuously transmitted in the forward direction, and the parameters of each layer are continuously corrected through the circulation of continuous forward and backward adjustment, so that the problem that the air compression station has high energy consumption under different use conditions is solved, and the air compression station is more energy-saving and environment-friendly;
2. the processing result of each data processing terminal is recorded through the cloud platform, when the cloud platform receives the data transmitted by the detection module and the difference between the data transmitted by the detection module and the data transmitted by the detection module is not great or consistent with the difference between the data transmitted by the detection module and the data transmitted by the detection module, the cloud platform feeds back the processing result of the data processing terminal to reduce the times of cyclic adjustment of error data and forward data, reduce the adjustment time, improve the working efficiency and reduce the use energy consumption.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a flow chart illustrating the principles of the present invention;
description of the main reference signs
In the figure: 1. an air compressor; 2. a pipe network; 3. a data processing terminal; 4. a detection module; 5. an energy consumption monitoring module; 6. an air inlet; 7. an air intake adjustment module; 8. a gas storage tank; 9. a cold dryer; 10. and (5) a cloud platform.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-2, the present embodiment provides an energy-saving digital energy air compression station control system, which includes a plurality of air compressors 1, a pipe network 2, a data processing terminal 3, a detection module 4 and an energy consumption monitoring module 5, wherein the plurality of air compressors 1 are communicated with an air inlet 6 at a load end through the pipe network 2, and the data processing terminal 3 is in communication connection with the energy consumption monitoring module 5 and the detection module 4;
the operation parameters of the air compression station are divided into three layers according to the air flow path, namely the temperature and humidity of the air inlet end of the air compressor 1, the flow and exhaust pressure of the exhaust end and the loading pressure and flow of the air inlet 6 of the load end;
the detection module 4 comprises a plurality of detection sensors which respectively detect the operation parameters and sequentially transmit detection results to the data processing terminal 3;
the data processing terminal 3 compares the received value with the set value, and obtains an error value according to the comparison result, and carries out back propagation on the error value layer by layer, and adjusts the layer to obtain a forward value, and carries out forward propagation to adjust subsequent parameters, in the running process of the air compressor 1, different air inlet temperatures and humidities can cause different influences on the running process of the air compressor 1, and the pressure and the flow of the exhaust end of the same air compressor 1 are related to the loading pressure and the flow of the air inlet 6 of the load end, so that the same running parameters of the air compressor have different energy consumption under different use conditions and use scenes, and therefore, in order to enable the air compressor to have the lowest energy consumption under different use conditions. The detection module 4 is used for detecting parameters of each layer in the operation process of the air compression station, when the energy consumption monitoring module 5 transmits a detection result to the data processing terminal 3, the data processing terminal 3 compares a received energy consumption value with a preset value, when the comparison result does not accord with the preset value, the data processing terminal 3 reversely transmits the detection result of the detection module 4 again, compares the detection result with preset parameters of each layer, adjusts the operation parameters of each layer according to the comparison result, reversely transmits error data of the third layer, repairs the data of the second layer, transmits the corrected operation parameters of the second layer to the third layer to further adjust the third layer, and transmits the error data of the second layer to the first layer to correct the first layer, and likewise, the corrected forward data of the first layer is continuously transmitted to correct the second layer and the third layer, and the energy consumption monitoring module 5 after the first correction is repeatedly detected again and circularly carries out the steps until the energy consumption is closest to the preset value.
The value calculated under the theoretical situation can be used as a preset value to be referenced, and in the actual situation, no matter how the operation parameters are regulated, the loss is generated in the operation process, so that the value which can be obtained under the theoretical situation is used as the operation index of each parameter, the operation parameter closest to the theoretical situation is obtained through continuous forward and reverse circulation, and the energy consumption of the air compression station is reduced.
In order to obtain the operation parameter with the lowest energy consumption in the continuous cyclic correction process, after each parameter adjustment, the corrected parameter is compared with the previous parameter, so as to obtain the operation parameter with the lowest energy consumption.
In addition to the above-mentioned operation parameters, the air compression station also has a part of loss in the pipeline transportation process, so as to reduce errors and improve accuracy, in this embodiment, the second layer of operation parameters also includes the loading pressure of the pipe network 2, the internal pressure of the pipe network 2 and the unloading pressure of the pipe network 2, the loading pressure of the pipe network 2 is detected to obtain how much pressure is lost in the operation process, the internal pressure of the pipe network 2 and the unloading pressure of the pipe network 2 need to be compensated, these losses need to be estimated and compensated, by measuring and analyzing these parameters, the pressure value lost in the pipeline transportation process can be estimated, and in addition, the losses can be reduced by changing the layout of the pipeline, adding valves and other modes, and the efficiency and stability of the pipeline can be improved.
The accumulated heat and dust accumulation at the air inlet end of the air compressor 1 will affect the working efficiency of the air compressor 1 after the air compressor 1 is operated for a long time, and the working efficiency of the air compressor 1 will gradually decrease over time, so in order to improve the working efficiency of the air compressor 1 and reduce the energy consumption, the operation time of the air compressor 1 needs to be adjusted, in one embodiment, the operation frequency and the operation time of the air compressor 1 are interference items of operation parameters, while the operation frequency of the air compressor 1 can be improved within a limited range in the operation process of the air compressor 1, the required energy consumption will correspondingly increase as the operation frequency of the air compressor 1 is higher, and the operation efficiency of the air compressor 1 will decrease after the operation for a long time, therefore, the two items are used as interference items in the operation process of the air compressor station, so that the operation parameters of each layer can be adjusted according to the operation frequency and the operation time of the air compressor 1 when being adjusted, the working efficiency of the air compressor 1 is improved, and the energy consumption is reduced.
In the process of adjusting the operation parameters of each layer, the correction of the parameters of each layer can be completed through the embodiment, but when the internal pressure of the pipeline is used as the supplementary parameter to be adjusted, as the air compressors 1 in the air compression station are not more than one, the pipeline of each air compressor 1 is complicated in the process of connecting, and the pressure detection of a certain position in the pipe network 2 alone cannot well obtain an accurate numerical value, so in order to improve the accuracy and reduce the error, in one embodiment, the detection module 4 is provided with a plurality of detection points when detecting the internal pressure of the pipe network 2, takes the average value of the plurality of detection points as the detection result, obtains the detection data of different positions in the pipe network 2 by setting the plurality of detection points, and carries out weighted average on the detection points to obtain the average numerical value, thereby reducing the error in the process of adjusting the parameters of each layer, improving the accuracy, and avoiding the situation of misjudgment caused by the fact that the pressure of the pipeline connected with the air compressor 1 is small because of the fault of a certain air compressor 1.
In the process of correcting parameters of each layer of the air compression station, in order to better correct the air intake temperature and humidity of the air intake end of the air compressor 1, in an embodiment, the air intake system further comprises an air intake adjusting module 7, the air intake adjusting module 7 is communicated with the air intake end of the air compressor 1, the air intake adjusting module 7 is in communication connection with the data processing terminal 3 and controls the air intake temperature and humidity of the air compressor 1, and when the air intake adjusting module 7 receives a processing result of the data processing terminal 3, the air intake temperature and humidity of the air compressor 1 are adjusted, so that the adjustment of the air intake end of the air compressor 1 is completed.
In daily use cases, a power consumption peak period and a power consumption low peak period exist, when the power consumption peak period is in, if the air compression station is in normal operation, more energy consumption can be caused under the same use parameters and working conditions, and the use condition of a load end can not reduce the air consumption pressure due to the power consumption peak period, so that the use requirement of the load end is met while the use energy consumption of the air compression station is better reduced, in one embodiment, the air compression station further comprises an air storage tank 8, the air storage tank 8 is communicated with a pipe network 2, the air storage tank 8 is in communication connection with a data processing terminal 3 and controls the loading pressure of the pipe network 2, the air compression station is in the storage of more produced gas under the good operation working conditions through the air storage tank 8, and when the use condition is worse, the use requirement of the load end can be met through the gas in the servo air storage tank 8; at the same time, the air compressor 1 is frequently started and stopped due to instability of gas demand in the production process of the air compressor 1, which can lead to fluctuation of gas pressure. The air generated by the air compressor 1 can be temporarily stored by connecting the air storage tank 8, and when the production equipment needs to use air, the air is taken out of the air storage tank 8, so that the pressure fluctuation can be effectively relieved, and the air supply is more stable.
In order to ensure the quality and stability of the compressed air, in an embodiment, the air conditioner further comprises a cold dryer 9, one end of the cold dryer 9 is communicated with the air outlet end of the air storage tank 8, the other end of the cold dryer is communicated with the load air inlet 6 through the pipe network 2, the cold dryer 9 adopts a compression refrigeration mode, moisture is condensed into liquid by reducing the air temperature, impurities are removed through a filter and other equipment, and finally the dried and clean compressed air is obtained, so that the quality and stability of the compressed air are ensured, the equipment can be prevented from being corroded and damaged by humid air, the service life of the equipment is prolonged, and the efficiency and quality of the process are improved.
Because the energy consumption generated by the air compression station under different use conditions is inconsistent, although the use condition of each time is adjusted through continuous forward and reverse circulation, a part of loss is also caused in the adjustment process, in order to reduce the loss of the part, in an embodiment, the air compression station further comprises a cloud platform 10, the cloud platform 10 is respectively in communication connection with the energy consumption monitoring module 5, the detection module 4 and the data processing terminal 3, the cloud platform 10 records the processing result of each time of the data processing terminal 3 and predicts the next processing result according to the detection result of the detection module 4, when the data processing terminal 3 transmits each time of processing to each layer of parameters, the result is also transmitted to the cloud platform 10 for recording, when the cloud platform 10 receives data with the similarity of more than 50% transmitted by the detection module 4, the cloud platform 10 transmits the processing result of the data to the data processing terminal 3, so that the data processing terminal 3 directly corrects parameters of each layer, the number of parameter circulation correction times is reduced, the efficiency is improved, and when the data processing terminal 10 records more data, the subsequent energy consumption is reduced in the following process, and the air compression station can be more environment-friendly.
In order to reduce the independent operation of each air compressor 1 in the use process of the air compressor station, the interference of other factors is reduced, in an embodiment, the air inlet end of each air compressor 1 is independently communicated with the pipe network 2, the heat generated by a fault unit after a certain air compressor 1 breaks down can be prevented from entering other air compressors 1 to influence the air compressors, and the interference of the operation process of other air compressors 1 is reduced.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (7)
1. An energy-saving digital energy air compression station control system is characterized in that: the system comprises a plurality of air compressors, a pipe network, a data processing terminal, a detection module and an energy consumption monitoring module, wherein the air compressors are communicated with an air inlet of a load end through the pipe network, and the data processing terminal is in communication connection with the energy consumption monitoring module and the detection module;
the operation parameters of the air compression station are divided into three layers according to an air flow path, namely the temperature and the humidity of an air inlet end of the air compressor, the flow and the exhaust pressure of an exhaust end and the loading pressure and the flow of an air inlet of a load end in sequence;
the detection module comprises a plurality of detection sensors which respectively detect the operation parameters and sequentially transmit detection results to the data processing terminal;
the data processing terminal compares the received value with a set value, obtains error values according to the comparison result, carries out layer-by-layer back propagation on the error values, adjusts the layers to obtain forward values, carries out forward propagation, and adjusts subsequent parameters, and specifically comprises the following steps: the method comprises the steps that parameters of each layer in the operation process of the air compression station are detected through a detection module, when an energy consumption monitoring module transmits a detected result to a data processing terminal, the data processing terminal compares a received energy consumption value with a preset value, when the compared result does not accord with the preset value, the data processing terminal reversely transmits the detection result of the detection module again, compares the detection result with preset parameters of each layer, adjusts the operation parameters of each layer according to the compared result, reversely transmits error data of a third layer, repairs the data of a second layer, transmits the operation parameters of the second layer to the third layer to further adjust the third layer after the correction according to the error data of the third layer, and transmits the error data of the second layer to a first layer to correct the first layer, and likewise, the corrected forward data of the first layer is continuously transmitted to correct the second layer and the third layer, and the energy consumption monitoring module after the first correction is repeatedly used for detecting again and circularly performing the steps until the energy consumption is closest to the preset value;
the cloud platform is respectively in communication connection with the energy consumption monitoring module, the detection module and the data processing terminal, records the processing result of each data processing terminal and predicts the next processing result according to the detection result of the detection module;
and the air inlet end of the air compressor is independently communicated with the pipe network.
2. An energy efficient digital energy air compressor control system as defined in claim 1, wherein: the second layer of operating parameters further comprises a loading pressure of the pipe network, an internal pressure of the pipe network and an unloading pressure of the pipe network.
3. An energy efficient digital energy air compressor control system as defined in claim 1, wherein: the operating frequency and the operating time of the air compressor are interference items of operating parameters.
4. An energy efficient digital energy air compression station control system as defined in claim 2, wherein: the detection module is provided with a plurality of detection points when detecting the internal pressure of the pipe network, and the detection points are subjected to weighted average to obtain an average value as a detection result.
5. An energy efficient digital energy air compressor control system as defined in claim 1, wherein: the air inlet control system comprises an air compressor, and is characterized by further comprising an air inlet control module, wherein the air inlet control module is communicated with an air inlet end of the air compressor, and the air inlet control module is in communication connection with the data processing terminal and controls the air inlet temperature and humidity of the air compressor.
6. An energy efficient digital energy air compressor control system as defined in claim 1, wherein: the system further comprises an air storage tank, wherein the air storage tank is communicated with the pipe network, and the air storage tank is in communication connection with the data processing terminal and controls the loading pressure of the pipe network.
7. The energy efficient digital energy air compressor control system of claim 6, wherein: the air conditioner further comprises a cold dryer, one end of the cold dryer is communicated with the air outlet end of the air storage tank, and the other end of the cold dryer is communicated with the load air inlet through a pipe network.
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| CN110513281A (en) * | 2019-07-10 | 2019-11-29 | 天津城建大学 | Compressed air system optimal control method based on load prediction |
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| CN115492751A (en) * | 2022-10-14 | 2022-12-20 | 青岛华控能源科技有限公司 | Air compressor/refrigerator cluster control method and system |
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- 2023-11-29 CN CN202311611621.9A patent/CN117311430B/en active Active
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| CN207216357U (en) * | 2017-09-18 | 2018-04-10 | 康佩思节能技术（上海）有限公司 | A kind of intelligent management system for air compression station |
| CN108268359A (en) * | 2017-12-30 | 2018-07-10 | 浙江中睿低碳科技有限公司 | The optimization method of air compression station based on deep learning |
| CN110513281A (en) * | 2019-07-10 | 2019-11-29 | 天津城建大学 | Compressed air system optimal control method based on load prediction |
| CN113606111A (en) * | 2021-09-09 | 2021-11-05 | 广东鑫钻节能科技股份有限公司 | Energy-saving protection system based on air compression station and implementation method thereof |
| CN115492751A (en) * | 2022-10-14 | 2022-12-20 | 青岛华控能源科技有限公司 | Air compressor/refrigerator cluster control method and system |
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