Method, system, device and storage medium for controlling output of ethylene glycol pump

Abstract

The application discloses an output control method, system and device of a glycol pump and a storage medium, wherein the output control method of the glycol pump comprises the following steps: obtaining the inlet and outlet temperatures of an ice storage system and a refrigerating unit performance curve; monitoring the ice storage amount of a cold storage in real time, and obtaining the output parameters of the glycol pump based on the ice storage amount of the cold storage and the inlet and outlet temperatures; and dynamically adjusting the flow parameters of the refrigerant based on the refrigerating unit performance curve and the output parameters of the glycol pump. The method determines the output parameters of the glycol pump through the ice storage amount of the cold storage and the inlet and outlet temperatures, thereby reducing energy consumption. Then, the inlet and outlet temperatures of the ice storage system are monitored, and the refrigerating unit performance curve and other parameters are combined, so that the refrigeration operation of the ice storage system is controlled, and the efficiency and stability of the ice storage system can be maintained. The method can not only reduce the increase of cooling water temperature, prevent the ice storage system from leaking and reduce operation and maintenance costs, but also improve the efficiency and stability of the ice storage system.

Description

Technical Field

[0001] This application relates to the fields of ice storage cooling system technology and air conditioning devices, and more particularly to a method, system, device and storage medium for controlling the output of an ethylene glycol pump. Background Technology

[0002] With increasing emphasis on energy conservation and environmental protection, energy-saving construction of equipment such as heat and cold sources and HVAC systems is becoming more widespread and in-depth. Among these, ice storage cooling system technology is one of the more mature energy-saving measures.

[0003] For air conditioning systems in large buildings, factories, office buildings, and other public places, it is often necessary to maintain the temperature within a suitable range through air conditioning cooling. Compared to directly using air conditioning for cooling, ice storage cooling system technology utilizes off-peak electricity hours at night to operate the chiller units, which produce low-temperature water. This low-temperature water is then stored in ice storage devices, where the water is turned into ice. During peak air conditioning electricity hours in the daytime, the melted ice is used to meet part of the air conditioning load. On a macro level, this plays a role in peak shaving and valley shifting, and on a micro level, it improves indoor air conditioning quality while significantly reducing operating costs.

[0004] The key to ice storage systems lies in the output control of the ethylene glycol pump. However, in the current operation of ice storage systems, the output control of the ethylene glycol pump often relies on empirical values, making it difficult to adjust in a timely manner according to actual needs. This results in poor cooling effect, energy waste, and low efficiency.

[0005] Therefore, the aforementioned technical problems urgently need to be solved. Summary of the Invention

[0006] This application provides a method, system, device, and storage medium for controlling the output of an ethylene glycol pump, in order to solve or partially solve the problems of poor cooling effect, energy waste, and low efficiency.

[0007] A method for controlling the output of an ethylene glycol pump, comprising:

[0008] Obtain the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit;

[0009] Real-time monitoring of cold storage ice storage capacity; based on the cold storage ice storage capacity and inlet / outlet temperatures, obtain the output parameters of the ethylene glycol pump.

[0010] Based on the performance curve of the refrigeration unit and the output parameters of the ethylene glycol pump, the flow parameters of the refrigerant are dynamically adjusted to control the refrigeration operation of the ice storage system.

[0011] In a preferred embodiment, this application can be further configured to: dynamically adjust the refrigerant flow parameters based on the refrigeration unit performance curve and the ethylene glycol pump output parameters, including:

[0012] Methods for obtaining ice shards;

[0013] The refrigeration operation of the ice storage system is dynamically controlled based on the inlet and outlet temperatures and the ice crushing method.

[0014] In a preferred example, this application can be further configured to include, before real-time monitoring of the ice storage capacity in the cold storage:

[0015] Obtain the evaporator outlet temperature of the refrigeration unit;

[0016] Based on the evaporator outlet temperature and the ice storage capacity of the cold storage, the ice melting rate parameters are obtained;

[0017] The operating mode of the ice storage system is controlled based on the ice melting rate parameters and the output parameters of the ethylene glycol pump.

[0018] In a preferred embodiment, this application can be further configured to: dynamically adjust the refrigerant flow parameters to control the refrigeration operation of the ice storage system, including:

[0019] Obtain load parameters;

[0020] Based on load parameters, load forecasting and optimization control techniques are used to analyze load fluctuations and obtain load fluctuation analysis results, which are then used to control the refrigeration operation of the ice storage system.

[0021] In a preferred example, this application can be further configured to include, after obtaining the load parameters:

[0022] Based on load parameters, obtain the operating mode corresponding to the load parameters of each application condition;

[0023] Based on the operating mode, the operating strategy of the ice storage system is optimized by using sensing and detection components.

[0024] In a preferred embodiment, this application can be further configured to: monitor the ice storage capacity of the cold storage in real time, and obtain the output parameters of the ethylene glycol pump based on the ice storage capacity and the inlet and outlet temperatures, including:

[0025] Based on the ice storage capacity of the cold storage, obtain the current ice storage capacity;

[0026] Based on the current ice storage capacity and inlet / outlet temperatures, a control algorithm is used to calculate and obtain the output parameters of the ethylene glycol pump.

[0027] In a preferred embodiment, this application can be further configured to: obtain the output parameters of the ethylene glycol pump based on the ice storage capacity and inlet / outlet temperatures of the cold storage, including:

[0028] Based on the ice storage capacity and inlet / outlet temperatures of the cold storage, the optimal flow parameters of the ethylene glycol pump are obtained, which are then used to determine the pump's output parameters.

[0029] The second objective of this application is to provide a power output control system for an ethylene glycol pump.

[0030] The second objective of this application is achieved through the following technical solution:

[0031] An output control system for an ethylene glycol pump, comprising:

[0032] The information acquisition module is used to acquire the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit.

[0033] The parameter acquisition module is used to monitor the ice storage capacity of the cold storage in real time and obtain the output parameters of the ethylene glycol pump based on the ice storage capacity and the inlet and outlet temperatures.

[0034] The control module is used to dynamically adjust the refrigerant flow parameters based on the performance curve of the refrigeration unit and the output parameters of the ethylene glycol pump, in order to control the refrigeration operation of the ice storage system.

[0035] The third objective of this application is to provide an electronic device.

[0036] The aforementioned objective three of this application is achieved through the following technical solution:

[0037] An electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described method for controlling the output of an ethylene glycol pump.

[0038] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for controlling the output of an ethylene glycol pump.

[0039] In summary, this application includes the following beneficial technical effects:

[0040] The aforementioned method for controlling the output of the ethylene glycol pump involves acquiring the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit; real-time monitoring of the ice storage capacity in the cold storage; obtaining the ethylene glycol pump output parameters based on the ice storage capacity and inlet / outlet temperatures; and dynamically adjusting the refrigerant flow parameters based on the refrigeration unit performance curves and the ethylene glycol pump output parameters to control the refrigeration operation of the ice storage system. This method determines the output range of the ethylene glycol pump by monitoring and calculating the ice storage capacity, reducing additional pump output and lowering energy consumption. Furthermore, by monitoring the inlet and outlet temperatures of the ice storage system to obtain the ethylene glycol pump output parameters, and combining these parameters with the refrigeration unit performance curves, the output of the ethylene glycol pump can be controlled, maintaining the high efficiency and stability of the ice storage system. This method not only reduces cooling water temperature rise, prevents ice storage system leaks, and lowers maintenance costs, thus achieving a highly efficient ice melting mode, but also improves the efficiency and stability of the ice storage system. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A flowchart illustrating a method for controlling the output of an ethylene glycol pump according to an embodiment of this application is shown;

[0043] Figure 2 A schematic diagram illustrating the ice-breaking method of the output control method of the ethylene glycol pump in one embodiment of this application is shown.

[0044] Figure 3 A diagram illustrating the 100% summer air conditioning design daily load operation strategy of the ethylene glycol pump processing control method in one embodiment of this application is shown.

[0045] Figure 4 A flowchart illustrating the overall process of the output control method of the ethylene glycol pump in the first embodiment of this application is shown.

[0046] Figure 5 A schematic diagram of the output control system of an ethylene glycol pump in one embodiment of this application is shown;

[0047] Figure 6 A schematic diagram of an electronic device according to an embodiment of this application is shown. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0050] This application provides a method for controlling the output of an ethylene glycol pump. The main process of the method is described below:

[0051] Reference Figure 1 S10. Obtain the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit.

[0052] The performance curve can be obtained by fitting sample data or standard data provided by the chiller manufacturer.

[0053] Specifically, in this embodiment, a temperature sensor is used to monitor the inlet and outlet temperatures of the ice storage system, and the performance curve of the refrigeration unit provided by the refrigeration unit performance simulation section is obtained through experiments. That is, the performance of the refrigeration unit under different chilled water and cooling water temperatures and load rates, including maximum cooling capacity and compressor power.

[0054] The purpose of step S10 is to ensure the stability of the ice storage system and improve the accuracy and authenticity of the performance data of the refrigeration unit.

[0055] S20. Real-time monitoring of cold storage ice storage capacity, and acquisition of ethylene glycol pump output parameters based on cold storage ice storage capacity and inlet / outlet temperatures.

[0056] Specifically, in this embodiment, the amount of ice stored in the cold storage is monitored in real time by a sensor. Then, based on the amount of ice stored in the cold storage and the real-time monitored inlet and outlet temperatures, the output range of the ethylene glycol pump is determined. Finally, a control algorithm is used to calculate and obtain the output parameters of the ethylene glycol pump.

[0057] The control algorithm can include fuzzy control algorithms and neural network algorithms. Fuzzy control algorithms are used to control the voltage and frequency of a frequency converter, controlling the motor's acceleration time to avoid the impact of excessive acceleration on motor lifespan and excessively slow acceleration on work efficiency. The key to fuzzy control lies in the universe of discourse, membership degree, and fuzzy level division. This control method is particularly suitable for multi-input single-output control systems. Fuzzy control is essentially a type of nonlinear control.

[0058] Fuzzy control is a type of control that uses language to summarize the operator's control strategies and employs linguistic variables and fuzzy set theory to form control algorithms. The most important characteristic of fuzzy control is that it does not require establishing a precise mathematical model of the controlled object; it only requires summarizing the experience and data of on-site operators into relatively complete linguistic control rules. This allows it to control objects with characteristics such as uncertainty, imprecision, noise, nonlinearity, time-varying nature, and time delay. Fuzzy control systems are robust and particularly suitable for controlling nonlinear, time-varying, and time-delayed systems.

[0059] In the process of adopting fuzzy control, it is necessary to establish fuzzy control rules. Fuzzy rules are the core of the fuzzy control algorithm, as they determine the control rules of the algorithm. If the deviation is large, it is fuzzified to PB, indicating that the actual temperature is much lower than the desired temperature. In this case, we need to use a large amount of power to heat the temperature, so the control quantity is PB. If the actual temperature has reached the desired temperature, the fuzzified temperature deviation is 0. In this case, to maintain the temperature, we need to use a moderate amount of power, so the control quantity is 0. If the input quantity is NB, the corresponding control quantity is NB, thus obtaining the fuzzy control rules.

[0060] The purpose of step S20 is to reduce additional pump output, lower energy consumption, and improve the efficiency and timeliness of ethylene glycol pump output control.

[0061] S30: Based on the performance curve of the refrigeration unit and the output parameters of the ethylene glycol pump, the refrigerant flow parameters are dynamically adjusted to control the refrigeration operation of the ice storage system.

[0062] Specifically, in this embodiment, the refrigerant flow parameters are dynamically adjusted manually or automatically based on the performance curve of the refrigeration unit and the output parameters of the ethylene glycol pump, thereby controlling the refrigeration operation of the ice storage system.

[0063] This embodiment can also automatically control the ice-making and system operation and switch operating conditions according to the time schedule stored in the database. It can also preset holidays so that the system stops supplying cooling to systems that do not need air conditioning during holidays, controls the ice storage amount and ice storage time, and can automatically diagnose system faults and send alarms to remote locations. For example, it can display the system operating status, process, parameters of each node, operation records and alarm records through a touch screen.

[0064] The purpose of step S30 is not only to reduce the rise in cooling water temperature, prevent leakage in the ice storage system, and reduce operation and maintenance costs, thereby achieving an efficient ice melting mode, but also to improve the efficiency and stability of the ice storage system.

[0065] The aforementioned method for controlling the output of the ethylene glycol pump involves acquiring the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit; real-time monitoring of the ice storage capacity in the cold storage; obtaining the ethylene glycol pump output parameters based on the ice storage capacity and inlet / outlet temperatures; and dynamically adjusting the refrigerant flow parameters based on the refrigeration unit performance curves and the ethylene glycol pump output parameters to control the refrigeration operation of the ice storage system. This method determines the output range of the ethylene glycol pump by monitoring and calculating the ice storage capacity, reducing additional pump output and lowering energy consumption. Furthermore, by monitoring the inlet and outlet temperatures of the ice storage system to obtain the ethylene glycol pump output parameters, and combining these parameters with the refrigeration unit performance curves, the output of the ethylene glycol pump can be controlled, maintaining the high efficiency and stability of the ice storage system. This method not only reduces cooling water temperature rise, prevents ice storage system leaks, and lowers maintenance costs, thus achieving a highly efficient ice melting mode, but also improves the efficiency and stability of the ice storage system.

[0066] In some possible embodiments, prior to step S20, i.e., before real-time monitoring of the ice storage capacity in the cold storage, the following steps are included:

[0067] S201. Obtain the evaporator outlet temperature of the refrigeration unit.

[0068] S202. Based on the evaporator outlet temperature and the ice storage capacity of the cold storage, obtain the ice melting rate parameters.

[0069] S203. Based on the ice melting speed parameters and the ethylene glycol pump output parameters, control the operation mode of the ice storage system.

[0070] The operating modes include main unit ice-making mode, main unit and ice storage unit combined cooling mode, ice melting and cooling mode alone, and main unit cooling mode alone. The ice storage system includes an ethylene glycol subsystem, which consists of a dual-condition main unit evaporator, an ethylene glycol pump, an ice storage unit, a plate heat exchanger, and corresponding piping systems.

[0071] Specifically, in this embodiment, the evaporator outlet temperature of the refrigeration unit is obtained through a sensor. The warm ethylene glycol solution (11.0°C) after heat exchange exits from the plate heat exchanger, passes through an ethylene glycol pump, and enters the main unit. Based on the evaporator outlet temperature, the ethylene glycol solution undergoes a first-stage cooling process before entering the ice tank. The ice tank has a bypass loop for adjusting its outlet temperature and for use in single-supply cooling mode by the main unit. After the second-stage cooling process in the main unit and ice tank, the ethylene glycol solution reaches 3.5°C and then enters the plate heat exchanger to exchange heat with chilled water, producing chilled water at 5°C. Combining the evaporator outlet temperature and the ice storage capacity of the cold storage, the ice melting rate parameter is obtained. Then, based on the ice melting rate parameter and the ethylene glycol pump output parameter, the operating mode of the ice storage system is controlled.

[0072] The purpose of steps S201 to S203 is to control the operating mode of the ice storage system based on the ice melting rate parameters and the output parameters of the ethylene glycol pump, thereby improving the reliability and accuracy of the ice storage system.

[0073] In some possible embodiments, step S20, namely, real-time monitoring of the ice storage capacity in the cold storage and obtaining the ethylene glycol pump output parameters based on the ice storage capacity and the inlet and outlet temperatures, includes:

[0074] S21. Obtain the current ice storage capacity based on the ice storage capacity of the cold storage.

[0075] S22. Based on the current ice storage capacity and inlet / outlet temperatures, the control algorithm is used to calculate and obtain the output parameters of the ethylene glycol pump.

[0076] Specifically, in this embodiment, the current ice storage capacity is calculated and obtained based on the ice storage capacity of the cold storage. Then, based on the current ice storage capacity and the real-time monitored inlet and outlet temperatures, a control algorithm is adopted and fuzzy control rules are established to obtain the output parameters of the ethylene glycol pump. The processing capacity of the ethylene glycol pump is then automatically adjusted according to these output parameters.

[0077] Steps S21 and S22 improve the efficiency and timeliness of the ethylene glycol pump output control.

[0078] In some possible embodiments, step S22, namely obtaining the ethylene glycol pump output parameters based on the ice storage capacity and inlet / outlet temperatures of the cold storage, includes:

[0079] S221. Based on the ice storage capacity and inlet / outlet temperatures of the cold storage, obtain the optimal flow parameters of the ethylene glycol pump to obtain the output parameters of the ethylene glycol pump.

[0080] Specifically, based on the ice storage capacity and inlet / outlet temperatures of the cold storage, the supply and return water temperature difference of the ethylene glycol system is obtained. Then, based on this supply and return water temperature difference, a control algorithm is used to obtain the optimal flow parameters, thereby obtaining the ethylene glycol pump output parameters. For example, if the supply and return water temperature difference of the ethylene glycol system is both 7.5℃, when delivering the same amount of cooling capacity, the ethylene glycol flow rate is reduced. The reduced flow rate can correspondingly reduce the pump capacity, operating energy consumption, and the entire ethylene glycol and chilled water piping system (pipes, valves, filters, insulation, etc.).

[0081] The purpose of step S221 is to obtain the output parameters of the ethylene glycol pump through the optimal flow parameters of the ethylene glycol pump, thereby controlling and regulating the operation of the ice storage system and improving the economy of the ice storage system.

[0082] In some possible embodiments, step S30, namely, dynamically adjusting the refrigerant flow parameters based on the refrigeration unit performance curve and the ethylene glycol pump output parameters, includes:

[0083] S31. Method for obtaining broken ice.

[0084] S32. Based on the inlet and outlet temperatures and the ice crushing method, dynamically control the refrigeration operation of the ice storage system.

[0085] Specifically, the ice-breaking method involves ice columns forming around the coil during ice making, which are not connected at the end of the process. During ice melting, since ice is lighter than water, it floats and remains in contact with the coil. The contact point melts first and eventually breaks down, forming a stable ice-water mixture at 0°C. This keeps the coil in a stable, low-temperature environment, ensuring a stable, low outlet water temperature and an extremely high ice melting rate (100%). Even at the end of the ice melting process, the system requirements can still be met.

[0086] Specifically, refer to Figure 2(Diagram of ice crushing method) In this embodiment, at the end of ice making and the beginning of ice melting, the water in the ice tank is not completely frozen at the end of ice making, and the ice columns are not connected to each other. At this time, the ice melting is the same as that of a fully frozen coil. Because the ice layer is thinner during ice making, the thermal resistance of the ice is smaller, so the outlet temperature of the refrigeration unit is higher and the operating efficiency is higher. In the early stage of ice melting, after the ice melts, there is water between the ice ring and the coil. Since ice is lighter than water, it floats. The lower part of the ice ring is in direct contact with the coil, resulting in good heat exchange. In the middle stage of ice melting, the lower part of the ice ring is in continuous contact with the coil, and the melting speed is higher than that of the upper part of the ice ring. Therefore, after the lower part of the ice melts, the ice ring breaks, detaches from the coil, floats up, and contacts the upper coil to continue melting. In the middle and late stages of ice melting, after the ice ring breaks, the ice floats up and touches the upper coil. The melting speed of the contact part is faster, similar to process c. After the contact part melts, it breaks, forming smaller ice. In the later stages of ice melting, through processes c and d, the ice breaks into small pieces, forming an ice-water mixture at 0°C. The coils are immersed in this mixture, ensuring stable heat exchange and achieving a lower outlet water temperature, meeting system requirements until the ice melting process is complete. Then, based on the pre-set refrigeration operation modes under different operating conditions, the refrigeration operation of the ice storage system is further controlled.

[0087] Steps S31 and S32 are used to control the refrigeration operation of the ice storage system based on the inlet and outlet temperatures and the ice crushing method, thereby ensuring a stable ice melting rate and ice melting outlet temperature.

[0088] In some possible embodiments, step S30, namely dynamically adjusting the refrigerant flow parameters to control the refrigeration operation of the ice storage system, includes:

[0089] S33. Obtain load parameters.

[0090] S34. Based on load parameters, load forecasting technology and optimization control technology are used to analyze load fluctuations and obtain load fluctuation analysis results, which are then used to control the refrigeration operation of the ice storage system based on the load fluctuation analysis results.

[0091] Specifically, this embodiment records the annual trend of some necessary monitoring points. Based on the load parameters stored in the database, the annual load situation (including the maximum load of each day and the total load of the day) and equipment operating time can be recorded in the form of tables and charts. At the same time, this embodiment analyzes the load fluctuation of the load parameters through load forecasting technology and optimization control technology to obtain the load fluctuation analysis results. Then, based on the load fluctuation analysis results, energy-saving control is carried out to control the refrigeration operation of the ice storage system.

[0092] This embodiment can also predict the hourly load of the next day based on load forecasting technology, then use optimization control technology to determine the operating mode for each time period of the next day, and then automatically switch between operating modes according to time and needs.

[0093] This embodiment, arranged in chronological order and combined with load forecasting technology, controls the number of start-ups and shutdowns of the refrigeration unit and peripheral equipment, and monitors the working status and operating parameters of each device, such as: start-up and shutdown, status, and fault alarms of the main unit; refrigerant leakage alarms; main unit operating parameters, operating condition switching, and water shortage protection; remote measurement and display of main unit supply / return water temperature and pressure; start-up and shutdown, status, and fault alarms of the ethylene glycol pump; inlet and outlet temperatures and displays of the plate heat exchanger; and water demand measurement and display, etc.

[0094] The purpose of steps S33 and S34 is to use load forecasting and optimization control technology to fully guarantee the air conditioning effect according to load fluctuations, and to minimize operating costs, so as to enable the system to operate fully automatically and intelligently.

[0095] In some possible embodiments, after step S33, i.e. after acquiring the load parameters, the following steps are included:

[0096] S331. Based on load parameters, obtain the operating mode corresponding to the load parameters of each application condition.

[0097] S332. Based on the operating mode, optimize the operating strategy of the ice storage system through sensing and detection components.

[0098] Specifically, this embodiment employs different operating modes for different time periods based on varying terminal load requirements. Automatic control can be implemented using system sensors to optimize system operation strategies. This embodiment controls the chiller unit, ice storage device, plate heat exchanger, water pump, and system piping regulating valves to adjust the operating modes of the ice storage system under various application conditions. This ensures the system reaches design parameters and operates reliably under any load, guaranteeing the air conditioning's effectiveness. Simultaneously, while meeting the requirements of the terminal air conditioning system, the entire system achieves its most economical operating state, meaning the lowest possible operating cost.

[0099] When the weather changes and the daily load is low, this embodiment will adjust the operating mode through the control system according to the actual cooling load demand. It will automatically adjust the corresponding ratios of ice storage device melting for cooling, main unit cooling, and main unit ice production in each time period to gradually transition from partial ice storage mode to full ice storage mode. Following the principle of prioritizing cooling from the ice storage device, it will minimize the operation of the main unit during peak power periods. For example, during summer cooling, it will automatically select main unit priority or ice melting priority based on outdoor temperature, weather forecast, weather trends, and historical records. Under the premise of meeting the end-user load, it will use up the stored cooling capacity each day and minimize the operation of the main unit. Figure 3 .

[0100] The purpose of steps S331 and S332 is to optimize the operation strategy of the ice storage system according to the operation mode, give full play to the advantages of the ice storage system, save operating costs, improve the economic efficiency of the ice storage system, and improve the management efficiency and reduce the management labor intensity.

[0101] The output control method of the ethylene glycol pump provided in this embodiment, such as... Figure 4 As shown, by controlling the operation mode of the ice storage system based on the ice melting rate parameters and the output parameters of the ethylene glycol pump, the reliability and accuracy of the ice storage system are improved. The output parameters of the ethylene glycol pump are obtained through the optimal flow parameters of the ethylene glycol pump, thereby controlling and adjusting the operation of the ice storage system, improving its economy. Controlling the refrigeration operation of the ice storage system based on the inlet and outlet temperatures and the ice crushing method ensures a stable ice melting rate and ice melting outlet temperature. The use of load forecasting and optimization control technology can fully guarantee the air conditioning effect according to load fluctuations and minimize operating costs, enabling the system to operate fully automatically and intelligently. Optimizing the operation strategy of the ice storage system based on the operating mode fully leverages its advantages, saves operating costs, improves the refrigeration economy of the ice storage system, and also improves system management efficiency and reduces management labor intensity.

[0102] Another embodiment of this application discloses an output control system for an ethylene glycol pump.

[0103] Reference Figure 5 The output control system of the ethylene glycol pump includes:

[0104] The information acquisition module 10 is used to acquire the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit.

[0105] The parameter acquisition module 20 is used to monitor the ice storage capacity of the cold storage in real time and to acquire the output parameters of the ethylene glycol pump based on the ice storage capacity and the inlet and outlet temperatures.

[0106] The control module 30 is used to dynamically adjust the refrigerant flow parameters based on the performance curve of the refrigeration unit and the output parameters of the ethylene glycol pump, in order to control the refrigeration operation of the ice storage system.

[0107] Furthermore, such as Figure 5 As shown, the output control system of the ethylene glycol pump also includes:

[0108] Evaporator outlet temperature acquisition module 201 is used to acquire the evaporator outlet temperature of the refrigeration unit.

[0109] The ice melting rate parameter acquisition module 202 is used to obtain ice melting rate parameters based on the evaporator outlet temperature and the ice storage capacity of the cold storage.

[0110] The operation mode control module 203 is used to control the operation mode of the ice storage system based on the ice melting speed parameters and the ethylene glycol pump output parameters.

[0111] Furthermore, such as Figure 5 As shown, the parameter acquisition module 20 includes:

[0112] The current ice storage volume acquisition submodule 21 is used to obtain the current ice storage volume based on the ice storage volume of the cold storage.

[0113] The ethylene glycol pump output parameter acquisition submodule 22 is used to calculate and acquire the ethylene glycol pump output parameters based on the current ice storage capacity and inlet / outlet temperature using a control algorithm.

[0114] Furthermore, such as Figure 5 As shown, the ethylene glycol pump output parameter acquisition submodule 22 includes:

[0115] The optimal flow parameter acquisition unit 221 is used to obtain the optimal flow parameters of the ethylene glycol pump based on the ice storage capacity and inlet / outlet temperatures of the cold storage, and is used to obtain the output parameters of the ethylene glycol pump.

[0116] Furthermore, such as Figure 5 As shown, the control module 30 includes:

[0117] The ice-breaking method acquisition submodule 31 is used to acquire the ice-breaking method.

[0118] The refrigeration operation control submodule 32 is used to dynamically control the refrigeration operation of the ice storage system based on the inlet and outlet temperatures and the ice crushing method.

[0119] Furthermore, such as Figure 5 As shown, the control module 30 includes:

[0120] The load parameter acquisition submodule 33 is used to acquire load parameters.

[0121] The refrigeration operation control submodule 34 is used to analyze load fluctuations based on load parameters, using load prediction technology and optimization control technology, to obtain load fluctuation analysis results, and to control the refrigeration operation of the ice storage system based on the load fluctuation analysis results.

[0122] Furthermore, such as Figure 5 As shown, the control module 30 also includes:

[0123] The operation mode acquisition submodule 331 is used to acquire the operation mode corresponding to the load parameters of each application condition based on the load parameters.

[0124] The operation strategy optimization submodule 332 is used to optimize the operation strategy of the ice storage system based on the operation mode and through sensing and detection components.

[0125] The output control system for the ethylene glycol pump provided in this embodiment can realize the steps of the aforementioned embodiment due to the functions of each module and the logical connections between them. Therefore, it can achieve the same technical effect as the aforementioned embodiment. For the principle analysis, please refer to the relevant description of the steps of the aforementioned ethylene glycol pump output control method, which will not be repeated here.

[0126] Specific limitations regarding the output control system of the ethylene glycol pump can be found in the limitations of the output control method for the ethylene glycol pump mentioned above, and will not be repeated here. Each module in the aforementioned output control system of the ethylene glycol pump can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of the device in hardware form or independent of it, or stored in the memory of the device in software form, so that the processor can call and execute the corresponding operations of each module.

[0127] In one embodiment, an electronic device is provided, which may be a monitoring terminal, and its internal structure diagram may be as follows: Figure 6 As shown, the electronic device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile media and internal memory. The non-volatile media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile media. The database stores data required for the output control method of the ethylene glycol pump. The network interface communicates with external terminals via a network connection. When the computer program is executed by the processor, it implements an output control method for the ethylene glycol pump.

[0128] In one embodiment, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the output control method of the ethylene glycol pump described in the above embodiment, for example... Figure 1 Steps S10 to S30 are shown. Alternatively, when the processor executes the computer program, it implements the functions of each module / unit of the ethylene glycol pump output control system in the above embodiments, for example... Figure 5 The functions of modules 10 to 30 are shown. To avoid repetition, they will not be described again here.

[0129] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When executed by a processor, the computer program implements the output control method of the ethylene glycol pump described in the above embodiment; or, when executed by a processor, the computer program implements the functions of each module / unit in the output control system of the ethylene glycol pump described in the above system embodiment. To avoid repetition, further details are omitted here.

[0130] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a non-volatile computer-readable medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0131] Those skilled in the art will understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the system can be divided into different functional units or modules to complete all or part of the functions described above.

[0132] 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, and should all be included within the protection scope of this application.

Claims

1. A method for controlling the output of an ethylene glycol pump, characterized in that, include: Obtain the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit; Obtain the evaporator outlet temperature of the refrigeration unit; Based on the evaporator outlet temperature and the ice storage capacity of the cold storage, the ice melting rate parameters are obtained; Based on the ice melting rate parameters and the ethylene glycol pump output parameters, the operating mode of the ice storage system is controlled. The system monitors the ice storage capacity in the cold storage in real time, and based on the ice storage capacity and the inlet and outlet temperatures, obtains the optimal flow parameters of the ethylene glycol pump, which are then used to obtain the output parameters of the ethylene glycol pump. Based on the performance curve of the refrigeration unit and the output parameters of the ethylene glycol pump, the refrigerant flow parameters are dynamically adjusted to control the refrigeration operation of the ice storage system, including: Methods for obtaining ice shards; Based on the inlet and outlet temperatures and the ice crushing method, the refrigeration operation of the ice storage system is dynamically controlled. The operating modes include main unit ice-making mode, main unit and ice storage device combined cooling mode, ice melting and cooling mode, and main unit cooling mode. The ice breaking method refers to the state of ice blocks at different stages of melting, including: the beginning of melting, the early stage of melting, the middle stage of melting, and the late stage of melting.

2. The method for controlling the output of an ethylene glycol pump according to claim 1, characterized in that, The dynamically adjusted refrigerant flow parameters are used to control the refrigeration operation of the ice storage system, including: Obtain load parameters; Based on the load parameters, load fluctuations are analyzed using load forecasting and optimization control techniques to obtain load fluctuation analysis results, which are then used to control the refrigeration operation of the ice storage system.

3. The method for controlling the output of an ethylene glycol pump according to claim 2, characterized in that, After obtaining the load parameters, the following steps are included: Based on the load parameters, obtain the operating mode corresponding to the load parameters for each application condition; Based on the aforementioned operating mode, the operating strategy of the ice storage system is optimized using sensing and detection components.

4. The method for controlling the output of an ethylene glycol pump according to claim 1, characterized in that, The real-time monitoring of cold storage ice storage capacity, based on the cold storage ice storage capacity and the inlet and outlet temperatures, obtains ethylene glycol pump output parameters, including: Based on the ice storage capacity of the cold storage, the current ice storage capacity is obtained; Based on the current ice storage capacity and the inlet and outlet temperatures, the output parameters of the ethylene glycol pump are calculated and obtained using a control algorithm.

5. A power output control module for an ethylene glycol pump, characterized in that, include: The information acquisition module is used to acquire the inlet and outlet temperatures of the ice storage system and the performance curves of the refrigeration unit; and to acquire the optimal flow parameters of the ethylene glycol pump. In addition, the evaporator outlet temperature of the refrigeration unit is obtained; The parameter acquisition module is used to monitor the ice storage capacity of the cold storage in real time, and acquire the output parameters of the ethylene glycol pump based on the ice storage capacity and the inlet and outlet temperatures; acquire the ice melting speed parameters; and acquire the ice crushing method; the control module is used to dynamically adjust the refrigerant flow parameters based on the performance curve of the refrigeration unit, the output parameters of the ethylene glycol pump, the inlet and outlet temperatures, and the ice crushing method, so as to control the refrigeration operation of the ice storage system. The operating modes include main unit ice-making mode, main unit and ice storage device combined cooling mode, ice melting and ice storage device cooling mode, and main unit cooling mode.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the output control method of the ethylene glycol pump as described in any one of claims 1 to 4.

7. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the output control method of the ethylene glycol pump as described in any one of claims 1 to 4.

Images