CN110285530A - Control method, air conditioning control system, machine-readable storage medium, and air conditioning system - Google Patents

Abstract

The present application provides a control method for an air-conditioning system, an air-conditioning control system, a machine-readable storage medium, and an air-conditioning system. The control method includes: determining the heat exchange capacity of the air conditioning system according to at least one of the water outlet temperature of the customer-side heat exchanger, the external ambient temperature of the air conditioning system, and the frequency of the compressor; determining the water outlet flow demand of the water pump according to the heat exchange capacity; and Adjust the speed of the water pump according to the water flow demand. The air conditioning control system includes a processor and a memory. The memory stores programs that can be called by the processor. Wherein, when the processor executes the program, the above control method is realized. A program is stored on the machine-readable storage medium, and when the program is executed by the processor, the above control method is realized. The air-conditioning system includes customer-side heat exchangers, compressors, water pumps and the above-mentioned air-conditioning control system.

Description

Control method, air conditioning control system, machine-readable storage medium, and air conditioning system

technical field

The present application relates to the field of air conditioning, and in particular to a control method, an air conditioning control system, a machine-readable storage medium, and an air conditioning system.

Background technique

With the improvement of economic construction and people's living standards, the demand for cooling or heating is gradually increasing, and the corresponding power consumption for cooling or heating is increasing. Energy saving and consumption reduction have become the consensus of the whole society. On the premise of ensuring that the demand for cooling or heating can be met, scientifically and effectively reducing the electricity consumption of air conditioners has become an important means of saving energy.

The water pump is an important part of the air conditioning system. In the application process of the air conditioning system, the power of the water pump can account for up to 40% of the power of the entire air conditioning system. Saving energy and reducing consumption is particularly important for reducing the electricity consumption of air conditioners.

Contents of the invention

The present application provides a control method for an air-conditioning system with low energy consumption, an air-conditioning control system, a machine-readable storage medium, and an air-conditioning system.

One aspect of the present application provides a control method for an air-conditioning system, the air-conditioning system includes a customer-side heat exchanger, a compressor, and a water pump, wherein the method includes: according to the customer-side heat exchanger At least one of the outlet water temperature, the ambient temperature of the air-conditioning system, and the frequency of the compressor determines the heat exchange capacity of the air-conditioning system; determines the water outlet flow demand of the water pump according to the heat exchange capacity; and Adjust the speed of the water pump according to the water flow requirement.

Another aspect of the present application provides an air conditioner control system. It includes a processor and a memory; the memory stores a program that can be called by the processor; wherein, when the processor executes the program, the above control method is realized.

Another aspect of the present application provides a machine-readable storage medium. A program is stored thereon, and when the program is executed by the processor, the above-mentioned control method is realized.

Still another aspect of the present application provides an air conditioning system. It includes: a customer-side heat exchanger; a compressor; a water pump and the above-mentioned air-conditioning control system for controlling the customer-side heat exchanger, the compressor and the water pump.

The control method for the air-conditioning system in the embodiment of the present application includes determining the heat exchange capacity of the air-conditioning system according to at least one of the outlet water temperature of the customer-side heat exchanger, the ambient temperature of the air-conditioning system, and the frequency of the compressor. Determine the water outlet flow demand of the water pump, and then adjust the speed of the water pump according to the water outlet flow demand. In this way, the rotation speed of the water pump can be adjusted according to the demand of the output water flow of the water pump corresponding to different application environments, which has a wide application range and saves the power consumption of the water pump. And it avoids using a flow switch to control the water circulation volume of the air conditioning system, saving costs.

Description of drawings

Fig. 1 shows the schematic block diagram of an embodiment of the air conditioning system of the present application;

Fig. 2 shows the flowchart of an embodiment of the control method of the air conditioning system of the present application;

FIG. 3 is a flow chart of another embodiment of the control method of the air conditioning system of the present application;

FIG. 4 is a flow chart of another embodiment of the control method of the air conditioning system of the present application;

Fig. 5 is a schematic block diagram of an embodiment of the air conditioning control system of the present application.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to a determination."

The control method for the air-conditioning system in the embodiment of the present application includes determining the heat exchange capacity of the air-conditioning system according to at least one of the outlet water temperature of the customer-side heat exchanger, the ambient temperature of the air-conditioning system, and the frequency of the compressor. Determine the water flow demand of the water pump, and adjust the speed of the water pump according to the water flow demand. In this way, the rotation speed of the water pump can be adjusted according to the demand of the output water flow of the water pump corresponding to different application environments, which has a wide application range and saves the power consumption of the water pump. And it avoids using a flow switch to control the water circulation volume of the air conditioning system, saving costs.

FIG. 1 is a schematic block diagram of an embodiment of an air conditioning system 10 of the present application. The air conditioning system 10 includes a heat exchanger 11 , a compressor 14 , a water pump 15 and an air conditioning control system 17 . The air conditioner control system 17 is used to control the heat exchanger 11 , the compressor 14 and the water pump 15 .

The heat exchanger 11 includes a customer-side heat exchanger 12 and a source-side heat exchanger 13 . The water pump 15 is connected to the inlet 121 of the heat exchanger 12 on the customer side, and is used to pump the heat exchange medium coming in from the customer side and output it to the heat exchanger 12 on the customer side. In one embodiment, the heat exchange medium may be water. In another embodiment, the heat exchange medium may be water added with an antifreeze agent such as ethylene glycol, that is, a mixed liquid of water and ethylene glycol.

The compressor 14 is connected between the customer-side heat exchanger 12 and the source-side heat exchanger 13 . The compressor 14 is used to raise the low pressure gas to high pressure gas. In this embodiment, the compressor 14 sucks in a low-pressure gaseous refrigerant, and lifts the low-pressure refrigerant to a high-pressure gaseous refrigerant for output. Refrigerant includes gas, liquid or gas-liquid mixed state.

In the illustrated embodiment, the air conditioning system 10 includes a throttle device 16 . The throttling device 16 is connected to the customer-side heat exchanger 12 and the source-side heat exchanger 13 for throttling and pressure regulation.

The air conditioning system 10 includes a cooling mode and a heating mode. The working principle of the air conditioning system 10 in cooling mode and heating mode will be described below by taking water as the heat exchange medium as an example. In the cooling mode, the gaseous refrigerant discharged from the compressor 14 is output to the source-side heat exchanger 13, and the source-side heat exchanger 13 condenses the gaseous refrigerant into a liquid refrigerant, and outputs it to the customer-side heat exchanger through the throttling device 16 12. The refrigerant in the heat exchanger 12 on the client side exchanges heat with water at a higher temperature to lower the temperature of the water, and the cold water is delivered to the area that needs to be cooled on the client side through the outlet 122 of the heat exchanger 12 on the client side. To achieve cooling effect.

In the heating mode, the gaseous refrigerant discharged from the compressor 14 is output to the client-side heat exchanger 12, and the client-side heat exchanger 12 performs heat exchange between the refrigerant and cold water at a temperature lower than that of the refrigerant, and raises the temperature of the cold water. The outlet 122 of the heat exchanger 12 on the customer side outputs hot water, and sends the hot water to the area on the customer side that needs temperature regulation, so as to raise the temperature of the area that needs temperature regulation to achieve a heating effect.

In one embodiment, the air conditioning system 10 includes a plurality of temperature sensors for detecting the temperature of water entering the heat exchanger 12 at the customer side, the temperature of water leaving the heat exchanger 12 at the customer side, and the like.

FIG. 2 is a flowchart of an embodiment of a control method 20 of the air conditioning system 10 of the present application. 1-2, the control method 20 of the air conditioning system 10 includes steps 21-23. in:

In step 21, the heat exchange capacity of the air-conditioning system 10 is determined according to at least one of the water outlet temperature of the customer-side heat exchanger 12, the ambient temperature of the air-conditioning system 10, and the frequency of the compressor 14. Wherein, the outlet water temperature of the heat exchanger 12 on the customer side refers to the temperature of water output from the outlet 122 of the heat exchanger 12 on the customer side to the area requiring temperature adjustment on the customer side. In one embodiment, the area requiring temperature adjustment is inside a house, and the ambient temperature of the air conditioning system 10 refers to the temperature outside the house. In one embodiment, the area requiring temperature adjustment is inside the vehicle, and the ambient temperature of the air-conditioning system 10 refers to the temperature outside the vehicle. In another embodiment, the area requiring temperature adjustment is in another closed or semi-sealed space, and the ambient temperature of the air conditioning system 10 refers to the temperature outside the space. The ambient temperature of the air conditioning system 10 can be obtained through a temperature sensor, which is intuitive and easy to operate. The frequency of the compressor 14 can be preset and can be set according to actual applications. The heat exchange capacity of the air conditioning system 10 refers to the heating capacity or cooling capacity of the air conditioning system 10 .

In one embodiment, the heat exchange capacity of the air-conditioning system 10 can be determined according to one of the outlet water temperature of the customer-side heat exchanger 12 , the ambient temperature of the air-conditioning system 10 , and the frequency of the compressor 14 . In another embodiment, the heat exchange capacity of the air conditioning system 10 can be determined according to two of the water outlet temperature of the customer side heat exchanger 12 , the ambient temperature of the air conditioning system 10 and the frequency of the compressor 14 . In another embodiment, the heat exchange capacity of the air conditioning system 10 can be determined according to the outlet water temperature of the customer-side heat exchanger 12, the ambient temperature of the air conditioning system 10, and the frequency of the compressor 14. Thermal capabilities are more accurate. For the convenience of description, the external environment temperature of the air conditioning system 10 is referred to as "external environment temperature" for short below.

In one embodiment, determining the heat exchange capacity of the air-conditioning system 10 includes: determining the product of the water outlet temperature of the customer-side heat exchanger 12 and the ambient temperature as a temperature product, and determining the heat exchange capacity of the air-conditioning system 10 according to the temperature product. The value of the temperature product is more accurate and easy to obtain.

In one embodiment, determining the heat exchange capacity of the air-conditioning system 10 includes: determining the product of the outlet water temperature of the customer-side heat exchanger 12 and the first coefficient K1 as the first temperature, and determining the heat exchange capacity of the air-conditioning system 10 according to the first temperature .

In one embodiment, determining the heat exchange capacity of the air-conditioning system 10 includes: determining the product of the ambient temperature and the second coefficient K2 as a second temperature, and determining the heat exchange capacity of the air-conditioning system 10 according to the second temperature.

In one embodiment, determining the heat exchange capacity of the air conditioning system 10 includes: determining the product of the temperature product and the third coefficient K3 as a third temperature, and determining the heat exchange capacity of the air conditioning system 10 according to the third temperature.

In one embodiment, determining the heat exchange capacity of the air conditioning system 10 includes: determining the sum of the difference between the first temperature and the second temperature and the difference between the fourth coefficient K4 and the third temperature as the temperature parameter of the air conditioning system 10, according to The temperature parameter determines the heat transfer capacity of the air conditioning system 10 .

In one embodiment, determining the heat exchange capacity of the air conditioning system 10 includes: determining the heat exchange capacity of the air conditioning system 10 according to the product of the temperature parameter and the frequency of the compressor 14 . The temperature parameters and the frequency of the compressor 14 are easy to obtain, and specific values can be obtained. In this way, specific values of the heat exchange capacity of the air conditioning system 10 can be easily obtained, and the accuracy of the control method 20 can be improved. In one embodiment, the heat exchange capacity of the air conditioning system 10 can be determined according to the product of the temperature parameter and the frequency of the compressor 14 multiplied by the fifth coefficient K5. In one embodiment, the heat exchange capacity of the air-conditioning system 10 = (K1*outlet water temperature of the heat exchanger on the customer side-K2*outside ambient temperature+K4-K3*outlet water temperature of the customer-side heat exchanger*outside ambient temperature)* K5*compressor frequency. Wherein, in one embodiment, the first coefficient K1 to the fifth coefficient K5 are coefficients obtained after fitting according to the outlet water temperature of the customer-side heat exchanger 12 , the external environment temperature and the frequency of the compressor 14 .

In step 22, the water output flow requirement of the water pump 15 is determined according to the heat exchange capacity.

In one embodiment, the outlet water flow requirement of the water pump 15 can be determined according to the heat exchange capacity and the ratio of the difference between the inlet water temperature of the client-side heat exchanger 12 and the outlet water temperature of the client-side heat exchanger 12 . The water outlet flow requirement of the water pump 15 refers to the corresponding water outlet flow of the water pump 15 when the heat exchange capacity of the air conditioning system 10 can meet the needs of users. In one embodiment, the output water flow rate of the water pump 15 can be determined according to the product of the heat exchange capacity and the heat exchange coefficient and the ratio of the difference between the inlet water temperature of the client-side heat exchanger 12 and the outlet water temperature of the client-side heat exchanger 12 need. In one embodiment, the outlet water flow rate requirement of the water pump=heat exchange capacity*heat transfer coefficient/(inlet water temperature of the heat exchanger on the customer side-outlet water temperature of the heat exchanger on the customer side), wherein the heat transfer coefficient is calculated based on experience get the coefficients. In one embodiment, the heat transfer coefficient may be constant, such as 0.86.

In step 23, the rotational speed of the water pump 15 is adjusted according to the water flow requirement.

In one embodiment, the water outlet flow demand of the water pump 15 is compared with the current water outlet flow of the water pump 15; if the water outlet flow demand of the water pump 15 is greater than the current water outlet flow of the water pump 15, the water pump 15 is controlled to increase the speed of the water pump 15, Increase the water output flow rate of the water pump 15, increase the heat exchange capacity of the air conditioning system 10, and improve the temperature adjustment effect to meet the needs of users. If the water outlet flow demand of the water pump 15 is less than the current water outlet flow of the water pump 15, then the water pump 15 is controlled to reduce the speed of the water pump 15, reduce the water outlet flow of the water pump 15, and reduce the heat exchange capacity of the air conditioning system 10. In this way, in the air conditioning system 10 When the heat exchange capacity required by the user can be met, reducing the speed of the water pump 15 can reduce the power consumption of the water pump 15, reduce the power consumption of the water pump 15, and also reduce the user's cost for air-conditioning electricity. It has been verified by experiments that the water outlet flow rate of the water pump 15 is within the range of 60% to 100% of its rated water outlet flow rate, which has no influence on the performance of the air conditioning system 10 . The heat exchange capacity of the air conditioning system 10 can be determined based on the water inlet temperature of the customer side heat exchanger 12, the external environment temperature, and the frequency of the compressor 14, and the water flow requirement can be determined according to the heat exchange capacity. In this way, the actual environment of the air conditioning system 10 can determine Determine the water flow demand, and then adjust the speed of the water pump 15 to meet the actual demand. The flow switch in the air conditioning system 10 can be eliminated to reduce costs. And when the air-conditioning system 10 has a risk of low flow, the water pump 15 actively loads the water flow to prevent the low-flow alarm from causing the air-conditioning system 10 to shut down, causing customers to be unable to use it, and improving the reliability of the air-conditioning system 10 .

For the same air conditioning system 10, compared with the method in the related art based on the constant pressure difference, that is, the method of controlling the speed of the water pump 15 according to the water inlet pressure difference and the water outlet pressure difference of the customer side heat exchanger 12, the embodiment of the present application The control method 20 of the air conditioning system 10 can save the annual power consumption of the air conditioning system 10 by more than 50%. The power consumption of the air-conditioning system 10 is greatly reduced, energy is saved, and the user's cost on air-conditioning power consumption is also saved.

FIG. 3 is a flow chart of another embodiment of the control method 30 of the air conditioning system 10 of the present application. 1-3, the control method 30 of the air conditioning system 10 includes steps 31-34. in:

In step 31, the outlet water temperature of the client-side heat exchanger 12 is acquired. After the air conditioning system 10 is started, the water pump 15 starts to run according to the rated flow rate, the water flow is established, and the compressor 14 runs. The rated flow rate of the water pump 15 refers to the water output flow rate of the water pump 15 when the air conditioning system 10 reaches the rated heating capacity or cooling capacity. After the compressor 14 is running, the air conditioning system 10 starts to cool or heat, and the temperature sensor can be used to obtain the temperature of the outlet water of the customer side heat exchanger 12 .

In step 32, if the outlet water temperature of the customer-side heat exchanger 12 is within the valid range, determine the air conditioner according to at least one of the outlet water temperature of the customer-side heat exchanger 12, the ambient temperature of the air-conditioning system 10, and the frequency of the compressor 14. The heat exchange capacity of the system 10. Step 32 is similar to step 21 in the control method 20, the detailed description can be found above, and will not be repeated here. If the outlet water temperature of the client-side heat exchanger 12 is not within the valid range, adjust the outlet water temperature of the client-side heat exchanger 12 until the outlet water temperature of the client-side heat exchanger 12 is within the valid range. In one embodiment, the effective range of the outlet water temperature of the customer-side heat exchanger 12 is 5 degrees Celsius to 18 degrees Celsius. If the air conditioning system 10 runs outside the effective range for a long time, it will accelerate the wear and tear of the equipment in the air conditioning system 10 and reduce the service life of the equipment. Therefore, it is necessary to prevent the air conditioning system 10 from running outside the effective range. In one embodiment, when the temperature of the external environment is high, the temperature of the water entering the customer-side heat exchanger 12 is relatively high, and the temperature of the water flowing out of the customer-side heat exchanger 12 is relatively high, so effective cooling cannot be achieved. Therefore, the rotation speed of the water pump 15 can be adjusted to adjust the outlet water temperature of the customer-side heat exchanger 12 within the effective range, so as to realize the normal cooling function of the air-conditioning system 10 . When the outlet water temperature of the heat exchanger 12 on the client side is within the valid range, the heat exchange capacity of the air conditioning system 10 is determined to reduce equipment loss and prolong equipment life.

In step 33, the water output flow requirement of the water pump 15 is determined according to the heat exchange capacity. Step 33 is similar to step 22 in the control method 20, the detailed description can be found above, and will not be repeated here.

In step 34 , the rotational speed of the water pump 15 is adjusted according to the demand of the output water flow of the water pump 15 . In this way, the rotation speed of the water pump 15 can be adjusted according to the water flow requirements of the water pump 15 corresponding to different application environments, avoiding the use of flow switches to control the water circulation of the air conditioning system 10, and saving costs. Step 34 is similar to step 23 in the control method 20, the detailed description can be found above, and will not be repeated here.

FIG. 4 is a flow chart of another embodiment of the control method 40 of the air conditioning system 10 of the present application. Referring to FIG. 1 , FIG. 2 and FIG. 4 , the control method 40 of the air conditioning system 10 includes step 41 and step 42 . in:

In step 41, the rotational speed of the water pump 15 is determined as the starting rotational speed according to the water outlet flow requirement. According to steps 21 and 22 of the control method 20, determine the output water flow requirement of the water pump 15, and according to step 23 of the control method 20, determine the speed of the water pump 15. See above for detailed description, and will not repeat them here.

In one embodiment, during the commissioning phase of the air conditioning system 10, according to the control method 20, the rotational speed of the water pump 15 is determined as the starting rotational speed. In one embodiment, during the normal operation phase of the air conditioning system 10, according to the control method 20, the rotational speed of the water pump 15 is determined as the starting rotational speed. In one embodiment, the speed of the water pump 15 can be adjusted by the processor 171 outputting a PWM (Pulse Width Modulation, pulse width modulation) signal to the water pump 15 . After the rotational speed of the water pump 15 is determined, the PWM signal corresponding to the rotational speed is recorded, and the PWM signal is written into the program for controlling the operation of the water pump 15 as a signal corresponding to the starting rotational speed of the water pump 15 .

In step 42, the air conditioning system 10 is started according to the starting speed.

After the air conditioning system 10 is started, before the speed of the water pump 15 is adjusted, the water pump 15 is controlled to run at the starting speed. In one embodiment, after the air-conditioning system 10 is started, before adjusting the speed of the water pump 15, it operates at the starting speed determined during the commissioning stage. In another embodiment, after the air-conditioning system 10 is started, before adjusting the speed of the water pump 15 , it operates according to the start-up speed determined in the last normal operation stage of the air-conditioning system 10 . The start-up speed can be determined according to the actual operating conditions of the air-conditioning system 10. After the air-conditioning system 10 is started, the water pump 15 is controlled to run at the start-up speed. Good heat transfer capacity. In this way, by determining the start-up speed, it is convenient to further adjust the speed of the water pump 15 when the air-conditioning system 10 is running normally, and the speed of the water pump 15 can be quickly adjusted from the start-up speed to the best heat exchange capacity corresponding to the current operating condition of the air-conditioning system 10. The water pump rotates at 15 rpm, which improves efficiency.

In one embodiment, after the water pump 15 starts the air conditioning system 10 at the starting speed, when the user has different adjustment requirements for areas requiring temperature adjustment, the speed of the water pump 15 is adjusted according to the control method 20 to meet the user's needs.

In another embodiment, after the water pump 15 starts the air conditioning system 10 at the starting speed, if the outlet water temperature of the heat exchanger 12 on the customer side is within the valid range, when the user has different adjustment requirements for the areas that need temperature adjustment, according to The control method 20 is to adjust the rotation speed of the water pump 15 . If the outlet water temperature of the customer-side heat exchanger 12 is not within the effective range, adjust the outlet water temperature of the customer-side heat exchanger 12 until the outlet water temperature of the customer-side heat exchanger 12 is within the effective range, and then according to the control method 20, Regulate the rotating speed of water pump 15.

FIG. 5 is a schematic block diagram of an embodiment of the air conditioning control system 17 of the present application. Corresponding to the aforementioned embodiment of the control method 20 of the air conditioning system 10 , the present application also provides an embodiment of the air conditioning control system 17 . The air conditioning control system 17 includes a processor 171 and a memory 172 . The memory 172 stores programs that can be invoked by the processor 171, wherein when the processor 171 executes the programs, the control method 20 in the foregoing embodiments is implemented.

The embodiment of the air conditioning control system 17 of the present application can be applied to the air conditioning system 10 . Taking software implementation as an example, as a control system in a logical sense, the processor 171 of the air conditioning system 10 where it is located reads the corresponding computer program instructions in the non-volatile memory 173 into the memory for operation. From the perspective of hardware, in addition to the processor 171, memory 172, network interface 174, and non-volatile memory 173 shown in FIG. functions, and may also include other hardware, which will not be repeated here.

The present application also provides a machine-readable storage medium on which a program is stored. When the program is executed by the processor 171, the air-conditioning control system 17 implements the control method 20 in any one of the foregoing embodiments.

This application may take the form of a computer program product embodied on one or more storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having program code embodied therein. Machine-readable storage media includes both volatile and non-volatile, removable and non-removable media that may be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of machine-readable storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage , magnetic cassette, magnetic tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that may be used to store information that can be accessed by a computing device.

The above is only a preferred embodiment of the application, and is not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application should be included in the application. within the scope of protection.

Claims (11)

1. A control method for an air-conditioning system, the air-conditioning system comprising a customer side heat exchanger, a compressor and a water pump, characterized in that the method comprises: determining the heat exchange capacity of the air conditioning system according to at least one of the outlet water temperature of the customer-side heat exchanger, the ambient temperature of the air conditioning system, and the frequency of the compressor; Determining the outlet water flow requirement of the water pump according to the heat exchange capacity; and The speed of the water pump is adjusted according to the demand of the water outlet flow. 2. The control method according to claim 1, wherein said determining the heat exchange capacity of said air conditioning system comprises: The heat exchange capacity of the air conditioning system is determined according to the outlet water temperature of the customer-side heat exchanger, the external environment temperature, and the frequency of the compressor. 3. The control method according to claim 2, wherein said determining the heat exchange capacity of said air conditioning system comprises: Determine the product of the water outlet temperature of the client-side heat exchanger and the external environment temperature, which is the temperature product; According to the temperature product, the heat exchange capacity of the air conditioning system is determined. 4. The control method according to claim 3, wherein said determining the heat exchange capacity of said air conditioning system comprises: Determine the product of the outlet water temperature of the customer-side heat exchanger and the first coefficient as the first temperature; Determine the product of the external environment temperature and the second coefficient as the second temperature; determining the product of the temperature product and a third coefficient to be a third temperature; determining the sum of the difference between the first temperature and the second temperature and the difference between the fourth coefficient and the third temperature as the temperature parameter of the air conditioning system; According to the temperature parameter, the heat exchange capacity of the air conditioning system is determined. 5. The control method according to claim 4, wherein said determining the heat exchange capacity of said air conditioning system comprises: The heat exchange capacity of the air conditioning system is determined according to the product of the temperature parameter and the frequency of the compressor. 6. The control method according to claim 1, wherein the determination of the outlet water flow requirement of the water pump according to the heat exchange capacity comprises: According to the heat exchange capacity and the ratio of the difference between the inlet water temperature of the client-side heat exchanger and the outlet water temperature of the client-side heat exchanger, the outlet water flow requirement of the water pump is determined. 7. The control method according to claim 1, characterized in that: the control method comprises: Obtain the outlet water temperature of the client-side heat exchanger; If the water outlet temperature of the customer-side heat exchanger is within the effective range, determine the set value according to at least one of the water outlet temperature of the customer-side heat exchanger, the ambient temperature of the air-conditioning system, and the frequency of the compressor. Describe the heat transfer capacity of the air conditioning system. 8. The control method according to claim 1, characterized in that: the control method comprises: Determining the rotational speed of the water pump as the starting rotational speed according to the water outlet flow requirement; According to the starting speed, start the air conditioning system. 9. An air-conditioning control system, characterized in that it includes a processor and a memory; the memory stores a program that can be called by the processor; wherein, when the processor executes the program, it realizes the following claims 1-8 any one of the control methods. 10. A machine-readable storage medium, wherein a program is stored thereon, and when the program is executed by a processor, the control method according to any one of claims 1-8 is implemented. 11. An air conditioning system, characterized in that the air conditioning system comprises: Customer side heat exchanger; compressor; water pumps; and The air-conditioning control system according to claim 9, used for controlling the customer-side heat exchanger, the compressor and the water pump.