Temperature control method and device based on air conditioner and electronic equipment

Abstract

The embodiment of the invention provides a temperature control method and device based on an air conditioner and electronic equipment. The method comprises the steps that energy consumption information of a cabinet and control information of an air conditioner are obtained; the air conditioner is used for controlling the temperature of the cabinet, a fan, a freezing pump and a heat exchanger are arranged in the air conditioner, and the control information represents the working condition of the fan, the working condition of the freezing pump and the working condition of the heat exchanger; according to the energy consumption information, the control information, a preset first temperature threshold value and a preset second temperature threshold value, the chilled water valve control temperature is determined; the chilled water valve control temperature is used for controlling the opening and closing degree of a chilled water valve in the heat exchanger; and according to the chilled water valve control temperature, the energy consumption information, the control information, a preset first temperature threshold value and a preset second temperature threshold value, a fan and a chilled pump of the air conditioner are controlled based on the real-time current temperature. The method is used for achieving the effects of dynamically adjusting air conditioner refrigeration and reducing energy consumption.

Description

Technical Field

[0001] The present application relates to temperature control technology, and in particular to a temperature control method, device and electronic equipment based on air conditioning. Background Art

[0002] With the continuous development of information technologies such as artificial intelligence, big data and cloud computing, the demand for data center computing power has increased dramatically, and the number and scale of data centers have also expanded rapidly, resulting in a serious increase in energy consumption. During the use of data centers, a large amount of heat is generated. In order to maintain the normal operation of the equipment in the computer room, the data center needs to be cooled.

[0003] At present, precision air conditioners are usually used for cooling large and medium-sized data centers. The mainstream control scheme is to control the opening of the water valve of the precision air conditioner based on the return air temperature or the supply air temperature. The temperature control accuracy of the air conditioner is low, which affects the energy saving effect and adjustment performance of the air conditioner.

[0004] Therefore, how to scientifically and effectively control the temperature of the air conditioner has become a problem that needs to be solved urgently. Summary of the invention

[0005] The embodiments of the present application provide a temperature control method, device and electronic equipment based on an air conditioner, so as to achieve the technical effect of optimizing the cooling effect and reducing the energy consumption of the air conditioner, and improve the control accuracy of the air conditioner.

[0006] In a first aspect, an embodiment of the present application provides a temperature control method based on an air conditioner, comprising:

[0007] Acquire energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, and the air conditioner is equipped with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the refrigeration pump and the heat exchanger;

[0008] Determine the chilled water valve control temperature according to the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold; wherein the chilled water valve control temperature is used to control the degree of opening and closing of the chilled water valve in the heat exchanger;

[0009] According to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold, the air conditioner fan and refrigeration pump are controlled based on the real-time current temperature; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0010] In a second aspect, an embodiment of the present application provides a temperature control device based on an air conditioner, comprising:

[0011] An acquisition unit is used to acquire energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, and the air conditioner is equipped with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working conditions of the fan, the refrigeration pump and the heat exchanger;

[0012] A determination unit, configured to determine a chilled water valve control temperature according to energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold; wherein the chilled water valve control temperature is used to control the degree of switching of the chilled water valve in the heat exchanger;

[0013] A control unit is used to control the fan and refrigeration pump of the air conditioner based on the real-time current temperature according to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0014] In a third aspect, an embodiment of the present application provides a temperature control device based on an air conditioner, comprising: a memory, a processor;

[0015] The memory stores computer-executable instructions;

[0016] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0017] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect above and / or various possible implementations of the first aspect.

[0018] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementation methods of the first aspect.

[0019] The temperature control method, device and electronic device based on air conditioner provided by the present application obtain the energy consumption information of the cabinet and the control information of the air conditioner, and pre-set the first temperature threshold and the second temperature threshold, determine the control temperature of the chilled water valve according to the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, and control the fan and the refrigeration pump of the air conditioner based on the real-time current temperature according to the control temperature of the chilled water valve, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold. The effect of scientifically and dynamically controlling the fan and the refrigeration pump of the air conditioner is achieved, the energy consumption efficiency of the air conditioner refrigeration process is improved, the energy saving effect and the adjustment performance of the air conditioner are improved, and the temperature control is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] Figure 1 Schematic diagram of the process of the air conditioning-based temperature control method provided in this application Figure 1 ;

[0022] Figure 2 Schematic diagram of the process of the air conditioning-based temperature control method provided in this application Figure 2 ;

[0023] Figure 3 An exemplary air conditioning control diagram of initial control temperature provided by an embodiment of the present disclosure;

[0024] Figure 4 An exemplary air conditioning control diagram of the adjusted controlled temperature provided by an embodiment of the present disclosure;

[0025] Figure 5 A structural block diagram of a temperature control device based on air conditioning provided in an embodiment of the present disclosure;

[0026] Figure 6 A structural block diagram of a temperature control device based on air conditioning provided in an embodiment of the present disclosure;

[0027] Figure 7 This is a schematic diagram of the structure of an air-conditioning-based temperature control electronic device provided in this application.

[0028] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0030] First, the terms involved in this application are explained:

[0031] Precision air conditioning: Computer room precision air conditioning is a special air conditioning designed for modern electronic equipment rooms.

[0032] Chilled water pump: Chilled water pump is a chilled water circulation system, generally used in large refrigeration equipment such as central air conditioners.

[0033] Heat exchanger: A device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger.

[0034] Surface cooler: full name surface cooler. Its principle is to let the heat medium or cold medium or refrigerant flow through the inner cavity of the metal pipe, and the air to be treated flows through the outer wall of the metal pipe for heat exchange to achieve the purpose of heating or cooling the air.

[0035] EC fan: EC (Electrical Commutation) fan, also known as electronic commutation motor, refers to a centrifugal fan that uses a digital brushless DC outer rotor motor or a centrifugal fan that uses an EC motor.

[0036] Cabinet: Data center cabinet is a cabinet used to store computers and related control equipment. It has high rigidity and strength and is suitable for storing various equipment.

[0037] Cold Aisle: Cold Aisle generally refers to the cold / hot aisle containment system. The cold / hot aisle containment system is a technology used to reduce the temperature of equipment that generates heat during operation. It is mainly used in data center computer rooms.

[0038] Water valve opening: Water valve opening refers to the position of the valve core (or valve plate) when the valve core (or valve plate) changes the throttling area of ​​the flow channel during valve adjustment. The valve opening is generally expressed as a percentage, 0% means fully closed, and 100% means fully open.

[0039] Air volume: Air volume refers to the amount of air that passes through a fan or air conditioning equipment per unit time. It is one of the important indicators to measure the working effect of an air conditioning system. Air volume is usually measured in cubic meters per hour (m 3 It is expressed in units such as cubic feet per minute (CFM) or liters per second (L / s).

[0040] In recent years, with the continuous development of technologies such as artificial intelligence, big data, and cloud computing, the demand for computing power has increased, and the number and scale of data centers have continued to expand rapidly. As the carrier of computing power infrastructure, data centers usually include servers, cabinets and other equipment. During operation, a large amount of heat is generated. Therefore, data centers need to be cooled, and the cooling system has become an important guarantee for the stable operation of data center equipment.

[0041] At present, precision air conditioners are commonly used to provide cooling for large and medium-sized data centers. Precision air conditioners are usually composed of EC fans, refrigeration pumps, control systems, chilled water heat exchange coils and other parts. The current mainstream control scheme is to control the water valve opening of the air conditioner heat exchanger based on the return air temperature and / or supply air temperature of the air conditioner to control the cooling of the air conditioner.

[0042] During the operation of the air conditioner, it is necessary to set a minimum threshold for the air supply volume of the air conditioner fan and the opening of the water valve, so that the operation of the air conditioner can ensure the cooling effect while reducing energy consumption. However, the current setting of the water valve opening threshold and the fan air supply threshold lacks certain scientific basis and industry standards, which greatly affects the cooling effect and energy consumption in data centers with low loads. The control of the air conditioner fan and the refrigeration pump is also mostly based on fixed temperature control, which makes the energy-saving effect and regulation performance of the air conditioner poor.

[0043] The air conditioning-based temperature control method provided in this application is intended to solve the above technical problems in the prior art.

[0044] The specific application scenario of this application is the precision air conditioner used for refrigeration in the data center, which is used to control the refrigeration of the precision air conditioner. By obtaining the energy consumption information of the cabinet and the control information that characterizes the working conditions of the fan and the refrigeration pump in the air conditioner, the air conditioner chilled water valve control temperature is determined according to the energy consumption information, control information, the preset first temperature threshold, and the preset second temperature threshold, and the air conditioner fan and refrigeration pump are controlled based on the real-time current temperature according to the chilled water valve control temperature, energy consumption information, control information, the preset first temperature threshold, and the preset second temperature threshold, and the air conditioner refrigeration operation is performed. By dynamically determining the chilled water valve control temperature and controlling the refrigeration of the air conditioner in real time according to the chilled water valve control temperature, the problem of poor energy-saving effect and regulation performance of air conditioning refrigeration in the data center is solved.

[0045] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0046] Figure 1 Schematic diagram of the process of the air conditioning-based temperature control method provided in this application Figure 1 , the method can be performed by a temperature control device based on air conditioning.

[0047] like Figure 1 As shown, the method comprises the following steps:

[0048] S101. Obtain energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, and is equipped with a fan, a refrigeration pump and a heat exchanger. The control information represents the working conditions of the fan, the refrigeration pump and the heat exchanger.

[0049] Exemplarily, at least one air conditioner is configured in the refrigeration system, and the air conditioner is configured with a fan, a refrigeration pump, and a heat exchanger. For any air conditioner, there is a corresponding cold channel served by the air conditioner, and the energy consumption information of the cabinet in the cold channel corresponding to the air conditioner and the control information of the air conditioner are obtained. Among them, the energy consumption information of the cabinet represents the energy consumption power of the IT cabinet in the cold channel corresponding to the air conditioner, that is, energy consumption will be generated during the operation of the cabinet; the control information of the air conditioner represents the working condition of the fan in the air conditioner and the working condition of the refrigeration pump. The working condition of the fan can be, for example, the air supply volume of the fan, the temperature of the fan, etc.; the working condition of the refrigeration pump can be, for example, the power consumption information of the refrigeration pump, the liquid temperature in the refrigeration pump, etc.; the working condition of the heat exchanger can be, for example, the opening of the water valve in the heat exchanger, the liquid temperature in the heat exchanger, etc. Among them, the IT cabinet can be an electronic device such as a computer; the air conditioner can be a precision air conditioner; the fan can be an EC fan; and the heat exchanger can be a surface cooler.

[0050] S102. Determine a chilled water valve control temperature according to energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold; wherein the chilled water valve control temperature is used to control the degree of opening and closing of a chilled water valve in a heat exchanger.

[0051] Exemplarily, for any air conditioner, a first temperature threshold is preset, and the preset first temperature threshold is the temperature corresponding to the minimum operating state of the air conditioner. When the temperature is the preset first temperature threshold, the air conditioner performs cooling according to the minimum operating state. The minimum operating state is the operating state of the air conditioner when the air supply volume of the air fan of the air conditioner is the minimum air supply volume and the water valve opening of the heat exchanger is the minimum opening.

[0052] A second temperature threshold is preset, and the preset second temperature threshold is the temperature corresponding to the maximum operating state of the air conditioner. When the temperature is the preset second temperature threshold, the air conditioner performs cooling according to the maximum operating state. The maximum operating state is the operating state of the air conditioner when the air supply volume of the air fan of the air conditioner is the maximum air supply volume and the water valve opening of the heat exchanger is the maximum opening.

[0053] The chilled water valve control temperature is determined according to the control information of the air conditioner, the energy consumption information of the cabinet corresponding to the air conditioner, the preset first temperature threshold of the air conditioner, and the preset second temperature threshold of the air conditioner. For example, the temperature between the first temperature threshold and the second temperature threshold may be determined as the interval temperature, and the correlation between the fan air supply volume and the interval temperature may be determined according to the energy consumption information of the cabinet and the control information of the air conditioner, that is, the temperature within the interval temperature corresponds to the value of the fan air supply volume. For example, the temperature of the first temperature threshold may correspond to the minimum air supply volume, and any temperature within the interval temperature may correspond to the maximum air supply volume. According to the correlation between the fan air supply volume and the interval temperature, the temperature corresponding to the maximum air supply volume is determined as the chilled water valve control temperature.

[0054] The chilled water valve control temperature is used to control the degree of switching of the water valve in the heat exchanger, that is, when the temperature is a preset first temperature threshold, the air supply of the air conditioner fan is the minimum air supply, and the water valve opening of the heat exchanger is the minimum opening. Between the first temperature threshold and the chilled water valve control temperature, the water valve opening of the heat exchanger maintains the minimum opening unchanged. As the temperature rises, only the air supply of the fan is continuously increased. When the temperature is the chilled water valve control temperature, the air supply of the fan reaches the maximum air supply. When the temperature is greater than the chilled water valve control temperature, between the chilled water valve control temperature and the second temperature threshold, the air supply of the fan is the maximum air supply. As the temperature rises, the opening of the water valve of the heat exchanger is continuously increased. When the temperature is greater than the second temperature threshold, the air supply of the fan is the maximum air supply, and the water valve opening of the heat exchanger is the maximum opening.

[0055] In one example, the chilled water valve control temperature can also be determined, for example, by determining the correlation between the water valve opening and the interval temperature based on the energy consumption information of the cabinet and the control information of the air conditioner, that is, the temperature within the interval temperature corresponds to the size of the water valve opening, for example, the temperature of the first temperature threshold corresponds to the minimum water valve opening, and any temperature within the interval temperature corresponds to the maximum water valve opening. Based on the correlation between the water valve opening and the interval temperature, the temperature corresponding to the maximum water valve opening is determined as the chilled water valve control temperature.

[0056] S103, according to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold, based on the real-time current temperature, the fan and the refrigeration pump of the air conditioner are controlled; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0057] Exemplarily, the fan and water valve of the air conditioner are controlled based on the real-time current temperature according to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold. For example, the preset first temperature threshold, the preset second temperature threshold, and the temperature between the preset first temperature threshold and the preset second temperature threshold may be determined as the interval temperature, and the correlation between the air supply volume of the fan and the interval temperature is determined according to the chilled water valve control temperature, energy consumption information, and control information, for example, the first temperature threshold corresponds to the minimum air supply volume of the fan, the temperature between the chilled water valve control temperature and the second temperature threshold corresponds to the maximum air supply volume of the fan, and the remaining air supply volumes correspond to the interval temperatures from small to large one-to-one; the correlation between the opening of the heat exchanger water valve and the interval temperature is determined, for example, the temperature between the first temperature threshold and the chilled water valve control temperature corresponds to the minimum water valve opening, the second temperature threshold corresponds to the maximum water valve opening, and the remaining water valve openings correspond to the interval temperatures from small to large one-to-one.

[0058] In one example, the correlation between the water valve opening and the interval temperature is determined, and the first temperature threshold can be made to correspond to the minimum opening of the water valve, the temperature between the chilled water valve control temperature and the second temperature threshold can be made to correspond to the maximum opening of the water valve, and the remaining water valve openings can correspond to the interval temperatures one by one; the correlation between the fan's air supply volume and the interval temperature is determined, and the temperature between the first temperature threshold and the chilled water valve control temperature can be made to correspond to the fan's minimum air supply volume, the second temperature threshold can be made to correspond to the maximum air supply volume, and the air supply volume can correspond to the interval temperature from small to large.

[0059] Get the real-time current temperature of the cold channel corresponding to the air conditioner, and adjust the air supply volume of the air conditioner fan to the corresponding air supply volume based on the real-time current temperature according to the correlation between the air supply volume and the interval temperature, that is, adjust the air supply volume to the air supply volume corresponding to the real-time current temperature in the correlation between the air supply volume and the interval temperature; according to the correlation between the water valve opening and the interval temperature, adjust the water valve opening of the heat exchanger of the air conditioner to the corresponding water valve opening based on the real-time current temperature, that is, adjust the water valve opening to the water valve opening corresponding to the real-time current temperature in the correlation between the water valve opening and the interval temperature.

[0060] The temperature control method, device and electronic device based on air conditioner provided by the present application obtain the energy consumption information of the cabinet and the control information of the air conditioner, and pre-set the first temperature threshold and the second temperature threshold, determine the control temperature of the chilled water valve according to the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, and control the fan and the refrigeration pump of the air conditioner based on the real-time current temperature according to the control temperature of the chilled water valve, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold. The effect of scientifically and dynamically controlling the fan and the refrigeration pump of the air conditioner is achieved, the energy consumption efficiency of the air conditioner refrigeration process is improved, the energy saving effect and the adjustment performance of the air conditioner are improved, and the temperature control is more accurate.

[0061] Figure 2 A schematic diagram of a temperature control method based on air conditioning provided in an embodiment of the present disclosure Figure 2 .

[0062] This embodiment Figure 1 Based on the embodiment, determining the chilled water valve control temperature according to energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold is described in detail. The method includes:

[0063] Determine an air supply volume threshold value based on the energy consumption information and the fan information; wherein the air supply volume threshold value represents the minimum value of the air supply volume of the air-conditioning fan; determine an opening threshold value of the water valve based on the energy consumption information, the heat exchanger information, and the air supply volume threshold value; wherein the opening threshold value represents the minimum opening degree of the water valve; determine the chilled water valve control temperature based on the air supply volume threshold value, the opening threshold value, the preset first temperature threshold value, and the preset second temperature threshold value.

[0064] like Figure 2 As shown, the method comprises the following steps:

[0065] S201. Obtain energy consumption information of a cabinet and control information of an air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, the air conditioner is equipped with a fan and a refrigeration pump, and the control information represents the working conditions of the fan and the refrigeration pump.

[0066] Exemplarily, this step may refer to the above-mentioned step S101 and will not be described in detail.

[0067] S202. Determine an air supply volume threshold value according to energy consumption information and fan information; wherein the air supply volume threshold value represents a minimum value of the air supply volume of the air conditioner fan.

[0068] Exemplarily, for any air conditioner, the fan information is information in the air conditioner control information that characterizes the working condition of the fan, and the fan information may be, for example, air supply volume information that characterizes the size of the fan air supply volume, and fan temperature information that characterizes the fan temperature. According to the energy consumption information and fan information of the cabinet, the air supply volume threshold is determined. For example, the refrigeration temperature may be preset, and the preset refrigeration temperature is used to instruct the air conditioner to refrigerate the cabinet equipment in the corresponding cold channel, so that the temperature in the cold channel corresponding to the air conditioner drops to the preset refrigeration temperature; according to the energy consumption information and fan information of the cabinet, based on the preset refrigeration temperature, the correlation between the air supply volume information of the fan and the temperature information of the fan under the current energy consumption information is obtained, and according to the correlation between the air supply volume information of the fan and the temperature information of the fan, the air supply volume of the fan corresponding to the preset refrigeration temperature is determined as the air supply volume threshold. The air supply volume threshold corresponding to each air conditioner is determined in turn. Among them, the air supply volume threshold represents the minimum value of the air supply volume of the air conditioner fan, that is, the air supply volume size when all the air supply volume is used for refrigeration.

[0069] The beneficial effect of such a setting is that the air supply volume threshold is determined according to the energy consumption information and the fan information, so that the air supply volume threshold can be automatically adjusted according to the energy consumption information and the fan information, and all of it is used for cooling without wasting extra power consumption, making the air supply volume threshold a dynamic parameter, optimizing the energy efficiency of the air conditioner and reducing extra energy consumption.

[0070] In this embodiment, the fan information includes return air temperature information and supply air temperature information, the return air temperature information represents the temperature of the air in the monitored environment, and the supply air temperature information represents the temperature of the air currently emitted by the air conditioner; based on the energy consumption information and the fan information, the supply air volume threshold is determined, including: obtaining the air density and air specific heat capacity of the environment where the air conditioner is located; based on the energy consumption information, return air temperature information, supply air temperature information, air density, and air specific heat capacity, the supply air volume threshold is determined.

[0071] Specifically, the fan information includes supply air temperature information and return air temperature information. The supply air temperature information represents the temperature of the air currently emitted by the air conditioner, that is, the temperature of the air sent to the corresponding refrigeration environment of the air conditioner after being cooled by the fan; the return air temperature information represents the monitored temperature of the air in the refrigeration environment of the air conditioner, that is, the temperature of the air sent by the fan and returned to the air conditioner fan after passing through the equipment.

[0072] The air density and air specific heat capacity of the environment where the air conditioner is located are obtained, and the air supply volume threshold value of the fan is determined based on the preset air supply volume threshold determination formula according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the air specific heat capacity. The preset air supply volume threshold determination formula is used to determine the air supply volume threshold value according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the air specific heat capacity.

[0073] The preset air supply volume threshold determination formula may be, for example:

[0074] Q′ req =P IT,row,m

[0075]

[0076] Among them, P IT,row,m Characterizes the energy consumption of the cold channel IT cabinet served by the mth air conditioner, that is, the energy consumption information of the cabinet, Q′ req It is an intermediate quantity that characterizes energy consumption information. min,m Represents the minimum air volume setting value of the mth air conditioner fan, that is, the air volume threshold, ρ a is the air density, C a is the specific heat capacity of air, T ret,m Represents the return air temperature of the mth air conditioner, that is, the return air temperature information, T sup,m Represents the supply air temperature of the mth air conditioner, that is, the supply air temperature information. The formula indicates that the supply air volume threshold is equal to the energy consumption information divided by the product of the air density, the air specific heat capacity, and the difference between the return air temperature and the supply air temperature.

[0077] The beneficial effect of such a setting is that the supply air volume threshold is dynamically determined using multiple indicators such as energy consumption information, return air temperature information, supply air temperature information, air density, and air specific heat capacity, making the determination of the supply air volume threshold more reasonable and scientific, more in line with the needs of cabinet refrigeration, and reducing refrigeration energy consumption.

[0078] S203. Determine the opening threshold of the water valve according to the energy consumption information, the heat exchanger information, and the air supply volume threshold; wherein the opening threshold represents the minimum opening degree of the water valve.

[0079] Exemplarily, for any air conditioner, the heat exchanger information is information in the air conditioner control information that characterizes the working condition of the refrigeration pump, and the heat exchanger information may be, for example, water valve opening information that characterizes the water valve opening size, and heat exchanger liquid temperature information that characterizes the liquid temperature in the heat exchanger. The water valve opening threshold is determined according to the energy consumption information, the heat exchanger information, and the air supply volume threshold. For example, the water valve can be pre-set to adjust the air supply volume, and the water valve can be used to indicate that the water valve opening threshold is determined. If the obtained air supply volume threshold is less than or equal to the water valve adjustment air supply volume, according to the energy consumption information, the air supply volume threshold, and the heat exchanger information of the cabinet, based on the preset refrigeration temperature, the correlation between the water valve opening size of the heat exchanger and the temperature information of the liquid in the heat exchanger under the current energy consumption information and the air supply volume threshold is obtained, and according to the correlation between the water valve opening information of the heat exchanger and the temperature information of the liquid in the heat exchanger, the water valve opening size corresponding to the preset refrigeration temperature is determined as the water valve opening threshold. If the air supply volume threshold is greater than the air supply volume adjusted by the water valve, the water valve opening threshold is not adjusted, and the air supply volume threshold of the next air conditioner is determined. The water valve opening threshold corresponding to each air conditioner is determined in turn. Among them, the opening threshold represents the minimum opening degree of the water valve, that is, the water cooling amount provided by the refrigeration pump is used for the water valve opening during refrigeration, and the water cooling amount corresponding to the water valve opening is not wasted.

[0080] The beneficial effect of such a setting is that whether the water valve opening threshold needs to be controlled is determined according to the size of the air supply volume threshold, so that the setting of the water valve opening threshold is more scientific, so that the air conditioner can complete cooling more effectively and reduce the energy consumption of the refrigeration pump.

[0081] In this embodiment, the opening threshold of the water valve is determined based on energy consumption information, heat exchanger information, and an air supply volume threshold, including: obtaining the preset rated air supply volume of the fan and the current air supply volume of the fan, and determining the ratio between the preset rated air supply volume and the current air supply volume of the fan, which is the air supply ratio; if the air supply ratio is less than the preset air supply ratio threshold, determining the opening threshold of the water valve based on the energy consumption information and the heat exchanger information.

[0082] Specifically, the preset rated air supply volume of the fan and the current air supply volume of the fan are obtained, the rated air supply volume is the maximum air supply volume allowed by the fan device, and the ratio between the current air supply volume of the fan and the rated air supply volume is determined as the air supply ratio. The air supply ratio threshold is set in advance, and the air supply ratio threshold can be, for example, the ratio between the air supply volume of the minimum voltage allowed by the fan and the air supply volume of the maximum voltage allowed by the fan, that is, the lower limit of the air supply ratio. If the air supply ratio is less than or equal to the preset air supply ratio threshold, the opening threshold of the water valve is determined based on the energy consumption information and the heat exchanger information; if the air supply ratio is greater than the preset air supply ratio threshold, the opening threshold of the water valve is not adjusted, and the air supply volume threshold of the next air conditioner is adjusted.

[0083] The beneficial effect of this setting is that if the air supply ratio is less than the preset air supply ratio threshold, the air conditioner's refrigeration pump water valve is controlled so that the control and setting of the water valve are more in line with the requirements of the air conditioning use environment, and the setting of the air conditioner air supply volume threshold and the water valve opening threshold is also more flexible.

[0084] In this embodiment, the heat exchanger information includes return water temperature information and supply water temperature information, the return water temperature information represents the temperature of the liquid recovered during the operation of the air conditioner, and the supply water temperature information represents the temperature of the liquid emitted by the refrigeration pump to the heat exchanger; according to the energy consumption information and the heat exchanger information, the opening threshold of the water valve is determined, including: obtaining the liquid density information in the heat exchanger and the current opening of the water valve; according to a preset association relationship, determining the liquid flow corresponding to the current opening; wherein the preset association relationship represents the association between the opening of the water valve and the liquid flow; according to the liquid density information, the liquid flow corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information, the opening threshold of the water valve is determined.

[0085] Specifically, the heat exchanger information includes return water temperature information and water supply temperature information. The water supply temperature information represents the temperature of the liquid sent by the refrigeration pump to the heat exchanger, that is, the temperature of the liquid sent to the cabinet of the refrigeration environment corresponding to the air conditioner after being refrigerated by the refrigeration pump through the heat exchanger; the return water temperature information represents the temperature of the liquid recovered by the air conditioner heat exchanger during operation, that is, the temperature of the liquid sent by the heat exchanger after being refrigerated by the refrigeration pump and returning to the air conditioner heat exchanger again after passing through the equipment.

[0086] The liquid density information and the current opening of the water valve in the heat exchanger are obtained, and the liquid flow corresponding to the current opening is determined according to the preset correlation between the opening of the water valve and the liquid flow. The opening threshold of the water valve of the heat exchanger is determined based on the preset opening threshold determination formula according to the liquid density information, the liquid flow information corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information. The preset opening threshold determination formula is used to determine the opening threshold according to the liquid density information, the liquid flow information corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information.

[0087] The preset opening threshold determination formula may be, for example:

[0088] Q′ req =P IT,row,m

[0089]

[0090] Among them, β min , m Characterizes the minimum opening setting value of the water valve of the mth air conditioner heat exchanger, that is, the opening threshold, ρ wis the density of the liquid, f w is the opening flow function, which represents the liquid flow information at the current opening, T out,m Represents the water supply temperature of the mth air conditioner, that is, the water supply temperature information, T in,m represents the return water temperature of the mth air conditioner, that is, the return water temperature information, and G[x] represents the minimum water valve opening calculation function. The formula represents that the energy consumption information is divided by the product of the liquid density, the opening flow function, and the difference between the supply water temperature and the return water temperature, and the value obtained is the water valve opening threshold.

[0091] The beneficial effect of such a setting is that the water valve opening threshold is determined based on a variety of information such as liquid density information, liquid flow information corresponding to the current opening, energy consumption information, return water temperature information, and supply water temperature information, making the determination of the water valve opening threshold more scientific and reliable, so that the refrigeration of the freezing pump under the opening threshold is fully utilized.

[0092] S204. Determine a chilled water valve control temperature according to an air supply volume threshold, an opening threshold, a preset first temperature threshold, and a preset second temperature threshold.

[0093] Exemplarily, the chilled water valve control temperature is determined according to the air supply volume threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold. For example, for any air conditioner, the corresponding air supply volume threshold and the opening threshold can be associated with the preset first temperature threshold, that is, if the return air temperature received by the current air conditioner is less than or equal to the first temperature threshold, the air supply volume of the air conditioner is set to the air supply volume threshold, and the opening of the heat exchanger water valve of the air conditioner is set to the water valve opening threshold. The water valve opening is kept unchanged at the opening threshold, and when the return air temperature rises, only the fan air supply volume is increased, and the change of the return air temperature when the air supply volume of the air conditioner changes from the air supply volume threshold to the rated maximum air supply volume is determined. If the air supply volume reaches the rated maximum air supply volume, and the return air temperature does not change or the return air temperature rises, that is, when the opening threshold is used as the water valve opening, the cooling effect of the fan is low and it is difficult to meet the cooling demand, and the corresponding return air temperature when the air supply volume reaches the rated maximum air supply volume is determined as the chilled water valve control temperature. When the return air temperature exceeds the chilled water valve control temperature, the air supply of the air conditioner fan is maintained at the maximum air supply, and the water valve opening is increased until the water valve opening is increased to the maximum water valve opening at the preset second temperature threshold.

[0094] The beneficial effect of this arrangement is that it optimizes the control of the refrigeration pump, allows the water valve opening of the heat exchanger to be adjusted autonomously with the equipment and temperature, optimizes the energy consumption of air-conditioning refrigeration, reduces the energy consumption of air-conditioning refrigeration, finds the balance between energy consumption and refrigeration effect, and improves refrigeration effect and energy efficiency.

[0095] In this embodiment, the chilled water valve control temperature is determined based on an air supply volume threshold, an opening threshold, a preset first temperature threshold, and a preset second temperature threshold, including: determining the initial control temperature of the chilled water valve based on the preset first temperature threshold and the preset second temperature threshold; determining the current energy consumption of the air conditioner based on the initial control temperature of the chilled water valve; wherein the current energy consumption of the air conditioner includes the current energy consumption of the fan and the current energy consumption of the refrigeration pump; determining the chilled water valve control temperature based on the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the air supply volume threshold, the opening threshold, and the current energy consumption.

[0096] Specifically, the initial control temperature of the chilled water valve is determined according to the preset first temperature threshold and the preset second temperature threshold. For example, the initial control temperature of the chilled water valve can be determined according to the first temperature threshold and the second temperature threshold based on a preset temperature optimization formula.

[0097] The preset temperature optimization formula may be, for example;

[0098] T 1,i =T0+a i (T2-T0)

[0099] Among them, T 1,i represents the chilled water valve control temperature obtained by the i-th optimization. When this temperature is the initial control temperature of the chilled water valve, i is 0, T0 is the preset first temperature threshold, T2 is the preset second temperature threshold, and a i is the control coefficient obtained by the i-th optimization, which can be any value between 0.5 and 0.8. This formula represents the initial control temperature T of the chilled water valve. 1,0 The first temperature threshold is added with the product of the control coefficient and the difference between the second temperature threshold and the first temperature threshold.

[0100] According to the initial control temperature of the chilled water valve, the air volume of the air conditioner fan and the water valve opening of the heat exchanger are controlled to obtain the current energy consumption of the air conditioner, which includes the current energy consumption of the fan and the current energy consumption of the refrigeration pump. According to the first temperature threshold of the device, the initial control temperature, the air volume threshold, the opening threshold, and the current energy consumption, the chilled water valve control temperature is determined. For example, the coefficient optimization direction, the coefficient optimization step length, and the coefficient optimization times can be preset. The preset optimization direction is used to determine the addition and subtraction of the control coefficient, the coefficient optimization step length is used to determine the optimization size of the control coefficient each time, and the coefficient optimization times are used to determine the number of times the coefficient is optimized. According to the preset coefficient optimization direction, the preset coefficient optimization step size, the coefficient optimization times, and the control coefficient, based on the preset coefficient optimization formula, the control coefficient is optimized and the size of the control coefficient is updated. According to the updated control coefficient, based on the preset temperature optimization formula, the chilled water valve control temperature is updated, and according to the updated control temperature, the fan and water valve of the air conditioner are controlled, and the updated energy consumption information of the air conditioner is obtained. If the energy consumption information is less than the current energy consumption of the air conditioner, the temperature is determined as the chilled water valve control temperature; if the energy consumption information is greater than the current energy consumption of the air conditioner, the coefficient optimization direction is adjusted and the control coefficient is re-determined.

[0101] If the coefficient optimization direction is positive, the preset coefficient optimization formula can be, for example:

[0102]

[0103] Among them, a i+1 Characterizes the control coefficient after the i+1th optimization, a i Characterizes the control coefficient after the i-th optimization, z is the step length control amount, and characterizes the coefficient optimization step length. The larger z is, the smaller the optimization step length is each time, and the more accurate the optimization of the coefficient is. This formula characterizes that the control coefficient of the i+1th optimization is the control coefficient of the i-th optimization plus 1 minus the ratio of the control coefficient of the i-th optimization to the step length control amount.

[0104] If the coefficient optimization direction is negative, the preset coefficient optimization formula can be, for example:

[0105]

[0106] Among them, this formula represents that the control coefficient of the i+1th optimization is the control coefficient of the i-th optimization minus 1 minus the ratio of the control coefficient of the i-th optimization to the step control amount.

[0107] The beneficial effect of such a setting is that the chilled water valve control temperature of the air conditioner is accurately and detailedly optimized, and the air conditioner energy consumption before and after the optimization is determined, so that the optimization direction of the chilled water valve control temperature of the air conditioner is more accurate, and the chilled water valve control temperature can better control the energy consumption information of the air conditioner fan and the refrigeration pump, effectively reducing the energy consumption of the air conditioner and improving the cooling effect of the air conditioner.

[0108] In this embodiment, the chilled water valve control temperature is determined according to a preset first temperature threshold, a preset second temperature threshold, an initial control temperature, an air supply volume threshold, an opening threshold, and current energy consumption, including: adjusting the initial control temperature to obtain an adjusted control temperature; determining a correlation between the air supply volume and the temperature as a first relationship, and determining a correlation between the opening of the water valve and the temperature as a second relationship, according to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply volume threshold, and the opening threshold; obtaining the current temperature, and adjusting the air supply volume and / or the opening of the water valve of the air conditioner according to the current temperature, the first relationship, and the second relationship. degree; obtaining the energy consumption of the air conditioner after adjustment, if the current energy consumption is greater than the energy consumption of the air conditioner after adjustment, adjusting the adjusted control temperature of the refrigeration pump to obtain a new control temperature; determining a new first relationship and a new second relationship according to a preset first temperature threshold, a preset second temperature threshold, a new control temperature, an air supply volume threshold, and an opening threshold; obtaining the current temperature again, and adjusting the air supply volume and / or the opening of the water valve of the air conditioner according to the current temperature obtained again, the new first relationship, and the new second relationship; obtaining the energy consumption of the air conditioner after adjustment again, until the energy consumption obtained again is greater than the energy consumption obtained last time, and then determining the new control temperature as the control temperature of the chilled water valve.

[0109] Specifically, the initial control temperature is adjusted to obtain the adjusted control temperature. For example, the control coefficient may be adjusted based on a preset coefficient optimization direction, a preset coefficient optimization step, and a control coefficient, based on a preset coefficient optimization formula, to obtain the adjustment coefficient. For example, if the control coefficient a0 is 0.5, the preset step control amount z is 10, and the coefficient optimization direction is positive, based on the preset coefficient optimization formula, a1=a0+(1-a0) / z=0.55, the adjustment coefficient a1 is 0.55. The adjusted control temperature is obtained based on the adjustment coefficient, the first temperature threshold, the second temperature threshold, and the preset temperature optimization formula.

[0110] According to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply volume threshold, and the opening threshold, the correlation relationship between the air supply volume and the temperature is determined as the first relationship. For example, the preset first temperature threshold and the air supply volume threshold may be associated, that is, when the return air temperature of the air conditioner is less than or equal to the first temperature threshold, the air supply volume of the air conditioner fan is the air supply volume threshold; the adjusted control temperature and the rated maximum air supply volume of the fan are associated, that is, when the return air temperature of the air conditioner is greater than or equal to the adjusted control temperature, the air supply volume of the air conditioner fan is the rated maximum air supply volume; and the change of the air supply volume of the air conditioner fan from the air supply volume threshold to the rated maximum air supply volume is determined, and the correlation relationship within the first temperature threshold and the adjusted control temperature interval is determined.

[0111] Determine the correlation between the opening of the water valve and the temperature as the second relationship. For example, the preset first temperature threshold value may be associated with the opening threshold value, and the adjusted control temperature may be associated with the opening threshold value, that is, when the return air temperature of the air conditioner is less than or equal to the adjusted control temperature, the opening of the water valve of the air conditioner is the opening threshold value; associate the preset second temperature threshold value with the maximum opening of the heat exchanger water valve, that is, when the return air temperature of the air conditioner is greater than or equal to the second temperature threshold value, the water valve opening is the maximum opening; and determine the change of the opening of the water valve from the opening threshold value to the maximum opening, and the correlation relationship within the interval between the adjusted control temperature and the second temperature threshold value.

[0112] The current temperature is obtained, and according to the current temperature, based on the first relationship and the second relationship, the air supply volume and / or the opening of the water valve of the air conditioner are adjusted to obtain the energy consumption of the adjusted air conditioner. If the current energy consumption is greater than the energy consumption of the adjusted air conditioner, that is, the energy consumption of the air conditioner is reduced after the adjustment, then the coefficient optimization direction is correct. According to the coefficient optimization direction, the coefficient optimization step, and the adjustment coefficient, the adjustment coefficient is adjusted to obtain a new coefficient. And according to the new coefficient, the first temperature threshold, and the second temperature threshold, based on the preset temperature optimization formula, the new control temperature is determined. For example, if the adjustment coefficient a1 is 0.55, the preset step control amount z is 10, and the coefficient optimization direction is positive, based on the preset coefficient optimization formula, a2=a1+(1-a1) / z=0.55+(1-0.55) / 10=0.595, the new coefficient a2 is 0.595.

[0113] According to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the air supply volume threshold, and the opening threshold, a new first relationship and a new second relationship are determined, and the current temperature is obtained again. According to the current temperature obtained again, the new first relationship and the new second relationship, the air supply volume and / or the opening of the water valve of the air conditioner are adjusted; the energy consumption of the adjusted air conditioner is obtained again, until the energy consumption obtained again is greater than the energy consumption obtained last time, and the new control temperature is determined as the chilled water valve control temperature.

[0114] If the current energy consumption is less than the energy consumption of the air conditioner after adjustment, that is, the energy consumption of the air conditioner is increased after adjustment, then the coefficient optimization direction is wrong, and the coefficient optimization direction is adjusted to readjust the control coefficient of the air conditioner.

[0115] In one example, the correlation between the air supply volume and the temperature can also be determined as a third relationship based on the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply volume threshold, and the opening threshold. For example, the preset first temperature threshold can be associated with the opening threshold, that is, when the return air temperature of the air conditioner is less than or equal to the first temperature threshold, the water valve opening of the air conditioner is the opening threshold; the adjusted control temperature can be associated with the maximum opening of the water valve, that is, when the return air temperature of the air conditioner is greater than or equal to the adjusted control temperature, the water valve opening of the air conditioner is the maximum water valve opening; and the change of the air conditioner water valve opening from the opening threshold to the maximum opening is determined, and the correlation relationship between the first temperature threshold and the adjusted control temperature range is determined.

[0116] Determining the correlation between the air supply volume and temperature of the fan is the fourth relationship. For example, the preset first temperature threshold value may be associated with the air supply volume threshold value, and the adjusted control temperature may be associated with the air supply volume threshold value, that is, when the return air temperature of the air conditioner is less than or equal to the adjusted control temperature, the air supply volume of the fan of the air conditioner is the air supply volume threshold value; the preset second temperature threshold value may be associated with the rated maximum air supply volume of the fan, that is, when the return air temperature of the air conditioner is greater than or equal to the second temperature threshold value, the air supply volume of the fan is the rated maximum air supply volume; and determining the change of the air supply volume of the fan from the air supply volume threshold value to the rated maximum air supply volume, and the correlation relationship within the interval between the adjusted control temperature and the second temperature threshold value.

[0117] The current temperature is obtained, and according to the current temperature, based on the third relationship and the fourth relationship, the air supply volume of the air conditioner and / or the opening of the water valve are adjusted, the energy consumption of the adjusted air conditioner is obtained, and the control temperature of the chilled water valve is determined.

[0118] In an example, a preset big model can also be used to determine the control temperature of the chilled water valve. The preset big model is used to dynamically determine the control temperature of the chilled water valve. The preset big model can be a big model using Markov decision making. The usage of the big model can be to obtain the control information of the air conditioner in real time and adjust the control temperature of the chilled water valve. When the energy consumption of the air conditioner fan and the refrigeration pump decreases, the model is rewarded and the control temperature of the chilled water valve is continuously adjusted.

[0119] Figure 3 An exemplary air conditioning control diagram of the initial control temperature provided by the embodiment of the present disclosure. Figure 3As shown, the horizontal axis in the figure represents temperature, with the right direction being positive; the left vertical axis represents the water valve opening, with the upward direction being positive; the right vertical axis represents the air volume, with the upward direction being positive. T0 represents the first temperature threshold; T2 in the figure represents the second temperature threshold; and T1 in the figure represents the initial control temperature. The line labeled 1 in the figure represents the correlation between the fan air volume and temperature determined based on the initial control temperature T1, that is, when line 1 is between the first temperature threshold T0 and the initial control temperature T1, it is maintained at the air volume threshold V min0 , between the initial control temperature T1 and the second temperature threshold T2, the air supply volume is from the air supply volume threshold V min0 Gradually increase to the rated maximum air supply volume V max The line marked with 2 in the figure represents the correlation between the water valve opening and temperature determined based on the initial control temperature T1, that is, when line 2 is between the first temperature threshold T0 and the initial control temperature T1, the water valve opening changes from the opening threshold β min0 Gradually increase to the maximum opening of the water valve β max , keep the water valve opening at the maximum opening β between the initial control temperature T1 and the second temperature threshold T2 max constant.

[0120] Figure 4 An exemplary air conditioning control diagram of the adjusted controlled temperature provided in the embodiment of the present disclosure. Figure 4 As shown, the horizontal axis in the figure represents the temperature, and the right direction is positive; the left vertical axis represents the water valve opening, and the upward direction is positive; the right vertical axis represents the air supply volume, and the upward direction is positive. T0 represents the first temperature threshold; T2 in the figure represents the second temperature threshold; T1″ in the figure represents the adjusted control temperature, that is, the optimization direction of the control temperature is negative. The line marked 3 in the figure represents the correlation between the fan air supply volume and temperature determined based on the adjusted control temperature T1, that is, when line 3 is between the first temperature threshold T0 and the adjusted control temperature T1″, it is maintained at the air supply volume threshold V min0 , between the adjusted control temperature T1″ and the second temperature threshold T2, the air supply volume is from the air supply volume threshold V min0 Gradually increase to the rated maximum air supply volume V max The line marked with number 4 in the figure represents the correlation between the water valve opening and temperature determined based on the initial control temperature T1, that is, when line 4 is between the first temperature threshold T0 and the initial control temperature T1″, the water valve opening changes from the opening threshold β min0 Gradually increase to the maximum opening of the water valve β max , keep the water valve opening at the maximum opening β between the adjusted control temperature T1″ and the second temperature threshold T2 max constant.

[0121] The beneficial effect of such a setting is that the chilled water valve control temperature can be adjusted dynamically. The determined chilled water valve control temperature not only ensures the refrigeration effect, but also reduces the energy consumption level of the air conditioner. It can dynamically find the minimum value of the sum of the energy consumption of the refrigeration pump and the air conditioner fan energy consumption, thereby reducing the energy consumption of the air conditioner. It can make real-time adjustments based on environmental changes, making the control of the air conditioner more scientific and effective.

[0122] S205. According to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold, the fan and the refrigeration pump of the air conditioner are controlled based on the real-time current temperature; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0123] Exemplarily, this step may refer to the above-mentioned step S103 and will not be described in detail.

[0124] In this embodiment, it also includes: determining the cooling capacity of the air conditioner according to the return air temperature information and the supply air temperature information of the air conditioner; determining the cooling demand of the cabinet according to the energy consumption information of the cabinet; if the cooling capacity is less than the cooling demand, determining the target opening of the water valve according to the cooling capacity, the cooling demand, the opening threshold, and the preset rated opening value; and adjusting the water valve of the air conditioner according to the target opening.

[0125] Specifically, during the operation of the air conditioner, the cooling capacity Q of the air conditioner is determined based on the return air temperature information and the supply air temperature information of the air conditioner and the preset cooling capacity determination formula. sup .

[0126] The preset cooling capacity determination formula may be, for example:

[0127] Q sup =f(n)·ρ a ·C a (T ret -T sup )

[0128] Among them, Q sup represents the cooling capacity, n represents the current fan speed, f(x) represents the air volume speed function, f(n) represents the fan air volume when the speed is n, ρ a is the air density, C a is the specific heat capacity of air, T ret is the return air temperature, T sup The formula indicates that the cooling capacity is the product of the air supply volume of the fan and the air density, air specific heat capacity, and the difference between the return air temperature and the supply air temperature.

[0129] According to the energy consumption information of the cabinet, based on the preset cabinet cooling demand determination formula, the cabinet cooling demand Q is determined req .

[0130] The cooling demand of the cabinet can be determined by, for example:

[0131] Q req =η·P IT,row

[0132] Among them, Q req represents the cooling demand, η is the preset safety factor, P IT,row is the energy consumption information of the cabinet. This formula indicates that the cooling demand is the product of the safety factor and the energy consumption information.

[0133] If the cooling capacity is less than the cooling demand, the opening coefficient of the water valve is determined according to the cooling capacity, the cooling demand and a preset integral calculation formula. The opening coefficient of the water valve represents the balance between the cooling capacity provided by the opening of the water valve and the cooling demand.

[0134] The integral calculation formula can be, for example:

[0135] K′ v =PI(Q sup ,Q req )

[0136] Among them, K′ v Represents the opening coefficient of the water valve, PI (x, y) represents the preset proportional integral calculator, PI (Q sup ,Q req ) represents that the cooling capacity and cooling demand are input into a preset proportional integral calculator, and the value obtained is the opening coefficient of the water valve.

[0137] According to the opening coefficient, the opening threshold, and the preset rated opening value, based on a preset target opening determination formula, the target opening of the water valve is determined.

[0138] The preset target opening determination formula may be, for example:

[0139] β v =K′ v ·(β max -β min )+β min

[0140] Among them, β v Characterizes the target opening of the water valve, β max Characterizes the rated maximum opening of the water valve, β min Characterizes the opening threshold of the water valve. This formula indicates that the target opening is equal to the opening threshold plus the product of the opening coefficient and the rated opening and the opening threshold.

[0141] According to the target opening of the water valve, the water valve of the air conditioner is adjusted, and the new cooling demand and cooling capacity are obtained. If the cooling capacity is still less than the cooling demand after adjusting the water valve, the target speed is determined based on the preset speed determination formula according to the cooling demand, air density, air specific heat capacity, supply air temperature, return air temperature, and the inverse function of the air volume and speed function, and the fan speed of the air conditioner is adjusted according to the target speed.

[0142] The preset speed determination formula may be, for example:

[0143]

[0144] Among them, n v is the target speed, and F[x] is the inverse function of the preset air volume speed function. This formula indicates that the target speed is the value obtained by inputting the ratio of the cooling demand to the product of the air density, the air specific heat capacity, and the difference between the return air temperature and the supply air temperature into the inverse function of the air volume speed function.

[0145] The beneficial effect of this setting is that the opening and speed of the air conditioner can be controlled in real time according to the cooling capacity and cooling demand, so that the air conditioner can dynamically and stably provide cooling for the equipment, ensure the normal operation of the cabinet, and match the water valve opening and fan air supply with the current cooling demand.

[0146] The temperature control method, device and electronic device based on air conditioner provided by the present application obtain the energy consumption information of the cabinet and the control information of the air conditioner, and pre-set the first temperature threshold and the second temperature threshold, determine the control temperature of the chilled water valve according to the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold, and control the fan and the refrigeration pump of the air conditioner based on the real-time current temperature according to the control temperature of the chilled water valve, the energy consumption information, the control information, the preset first temperature threshold and the preset second temperature threshold. The effect of scientifically and dynamically controlling the fan and the refrigeration pump of the air conditioner is achieved, the energy consumption efficiency of the air conditioner refrigeration process is improved, the energy saving effect and the adjustment performance of the air conditioner are improved, and the temperature control is more accurate.

[0147] Figure 5 This is a structural block diagram of an air-conditioning-based temperature control device provided in an embodiment of the present disclosure.

[0148] For the sake of convenience, only the parts related to the embodiments of the present disclosure are shown. Figure 5 The air-conditioning-based temperature control device 500 includes: an acquisition unit 501 , a determination unit 502 and a control unit 503 .

[0149] The acquisition unit 501 acquires the energy consumption information of the cabinet and the control information of the air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, and the air conditioner is equipped with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working condition of the fan, the working condition of the refrigeration pump and the working condition of the heat exchanger;

[0150] The determination unit 502 determines the chilled water valve control temperature according to the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold; wherein the chilled water valve control temperature is used to control the degree of opening and closing of the water valve in the heat exchanger;

[0151] The control unit 503 controls the fan and refrigeration pump of the air conditioner based on the real-time current temperature according to the chilled water valve control temperature, energy consumption information, control information, a preset first temperature threshold, and a preset second temperature threshold; wherein the preset first temperature threshold is less than the preset second temperature threshold.

[0152] Figure 6 This is a structural block diagram of an air-conditioning-based temperature control device provided in an embodiment of the present disclosure.

[0153] exist Figure 5 Based on the embodiment shown, Figure 6 As shown, the determination unit 502 includes an air volume module 5021 , an opening module 5022 and a temperature module 5023 .

[0154] The air volume module 5021 is used to determine the air volume threshold according to the energy consumption information and the fan information; wherein the air volume threshold represents the minimum value of the air volume of the air conditioner fan;

[0155] The opening module 5022 is used to determine the opening threshold of the water valve according to the energy consumption information, the heat exchanger information, and the air supply volume threshold; wherein the opening threshold represents the minimum opening degree of the water valve;

[0156] The temperature module 5023 is used to determine the chilled water valve control temperature according to the air supply volume threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold.

[0157] In one example, the air volume module 5021 includes:

[0158] An air submodule, used to obtain the air density and air specific heat capacity of the environment where the air conditioner is located;

[0159] The wind quantum module is used to determine the supply air volume threshold according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the air specific heat capacity.

[0160] In one example, the opening module 5022 includes:

[0161] A comparison submodule is used to obtain a preset rated air supply volume of the fan and a current air supply volume of the fan, and determine a ratio between the preset rated air supply volume and the current air supply volume of the fan, which is an air supply ratio;

[0162] The opening submodule is used to determine the opening threshold of the water valve according to the energy consumption information and the heat exchanger information if the air supply ratio is less than a preset air supply ratio threshold.

[0163] In one example, the opening submodule is specifically used for:

[0164] Get the liquid density information in the heat exchanger and the current opening of the water valve;

[0165] According to a preset correlation relationship, the liquid flow rate corresponding to the current opening is determined; wherein the preset correlation relationship represents the correlation relationship between the opening of the water valve and the liquid flow rate;

[0166] The opening threshold of the water valve is determined based on the liquid density information, the liquid flow corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information.

[0167] In one example, the temperature module 5023 includes:

[0168] An initial temperature submodule, used to determine an initial control temperature of a chilled water valve according to a preset first temperature threshold and a preset second temperature threshold;

[0169] The energy consumption monitoring submodule is used to determine the current energy consumption of the air conditioner according to the initial control temperature of the chilled water valve; wherein the current energy consumption of the air conditioner includes the current energy consumption of the fan and the current energy consumption of the chilled water pump;

[0170] The temperature determination submodule is used to determine the chilled water valve control temperature according to a preset first temperature threshold, a preset second temperature threshold, an initial control temperature, an air supply volume threshold, an opening threshold, and current energy consumption.

[0171] In one example, the temperature determination submodule is specifically used to:

[0172] Adjusting the initial control temperature to obtain an adjusted control temperature;

[0173] According to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply volume threshold, and the opening threshold, determining a correlation relationship between the air supply volume and the temperature as a first relationship, and determining a correlation relationship between the opening of the water valve and the temperature as a second relationship;

[0174] Acquire a current temperature, and adjust an air supply volume and / or an opening of a water valve of the air conditioner according to the current temperature, the first relationship, and the second relationship;

[0175] Acquire the energy consumption of the air conditioner after adjustment, and if the current energy consumption is greater than the energy consumption of the air conditioner after adjustment, adjust the adjusted control temperature of the refrigeration pump to obtain a new control temperature;

[0176] Determining a new first relationship and a new second relationship according to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the air supply volume threshold, and the opening threshold;

[0177] Obtaining the current temperature again, and adjusting the air supply volume and / or the opening of the water valve of the air conditioner according to the current temperature obtained again, the new first relationship, and the new second relationship;

[0178] The energy consumption of the adjusted air conditioner is obtained again until the energy consumption obtained again is greater than the energy consumption obtained last time, and then the new control temperature is determined as the chilled water valve control temperature.

[0179] In one example, it also includes:

[0180] A cooling quantum module, used to determine the cooling capacity of the air conditioner according to the return air temperature information and the supply air temperature information of the air conditioner;

[0181] A cooling demand submodule, used to determine the cooling demand of the cabinet according to the energy consumption information of the cabinet;

[0182] a target opening submodule, for determining a target opening of the water valve according to the cooling capacity, the cooling demand, the opening threshold, and a preset rated opening value if the cooling capacity is less than the cooling demand;

[0183] The adjustment submodule is used to adjust the water valve of the air conditioner according to the target opening.

[0184] Figure 7 This is a schematic diagram of the structure of the temperature control electronic device based on air conditioning provided in this application. Figure 5 As shown, the electronic device 70 provided in this embodiment includes: at least one processor 701 and a memory 702. Optionally, the device 70 further includes a communication component 703. The processor 701, the memory 702 and the communication component 703 are connected via a bus 704.

[0185] In a specific implementation process, at least one processor 701 executes the computer-executable instructions stored in the memory 702, so that at least one processor 701 executes the above method.

[0186] The specific implementation process of the processor 701 can be found in the above method embodiment, and its implementation principle and technical effect are similar, so this embodiment will not be repeated here.

[0187] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0188] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (Non-volatile Memory, NVM), such as at least one disk memory.

[0189] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0190] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0191] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0192] The above-mentioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0193] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0194] The division of units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0195] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0196] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0197] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0198] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0199] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art not disclosed by the present invention, are not limited to the precise structure described above and shown in the drawings, and may be modified and changed in various ways without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A temperature control method based on air conditioning, characterized in that: include: Acquire energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, the air conditioner is equipped with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working condition of the fan, the working condition of the refrigeration pump and the working condition of the heat exchanger; Determine the chilled water valve control temperature according to the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold; wherein the chilled water valve control temperature is used to control the degree of opening and closing of the water valve in the heat exchanger; According to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold, the fan and the refrigeration pump of the air conditioner are controlled based on the real-time current temperature; wherein the preset first temperature threshold is less than the preset second temperature threshold.

2. The method according to claim 1, characterized in that The control information includes fan information and heat exchanger information; determining the chilled water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold, and a preset second temperature threshold, including: Determine an air supply volume threshold value according to the energy consumption information and the fan information; wherein the air supply volume threshold value represents the minimum value of the air supply volume of the air conditioner fan; Determine the opening threshold of the water valve according to the energy consumption information, the heat exchanger information, and the air supply volume threshold; wherein the opening threshold represents the minimum opening degree of the water valve; The chilled water valve control temperature is determined according to the air supply volume threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold.

3. The method according to claim 2, characterized in that The fan information includes return air temperature information and supply air temperature information, wherein the return air temperature information represents the temperature of the air in the monitored environment, and the supply air temperature information represents the temperature of the air currently emitted by the air conditioner; Determining an air supply volume threshold according to the energy consumption information and the fan information includes: Obtaining the air density and air specific heat capacity of the environment where the air conditioner is located; The air supply volume threshold is determined according to the energy consumption information, the return air temperature information, the supply air temperature information, the air density, and the air specific heat capacity.

4. The method according to claim 2, characterized in that: Determining the opening threshold of the water valve according to the energy consumption information, the heat exchanger information, and the air supply volume threshold includes: Obtaining a preset rated air supply volume of the fan and a current air supply volume of the fan, and determining a ratio between the preset rated air supply volume and the current air supply volume of the fan as an air supply ratio; If the air supply ratio is less than a preset air supply ratio threshold, the opening threshold of the water valve is determined according to the energy consumption information and the heat exchanger information.

5. The method according to claim 4, characterized in that The heat exchanger information includes return water temperature information and supply water temperature information, wherein the return water temperature information represents the temperature of the liquid recovered during the operation of the air conditioner, and the supply water temperature information represents the temperature of the liquid sent by the refrigeration pump to the heat exchanger; Determining the opening threshold of the water valve according to the energy consumption information and the heat exchanger information includes: Acquiring density information of the liquid in the heat exchanger and the current opening of the water valve; According to a preset correlation relationship, determine the liquid flow corresponding to the current opening; wherein the preset correlation relationship represents the correlation relationship between the opening of the water valve and the liquid flow; The opening threshold of the water valve is determined according to the liquid density information, the liquid flow corresponding to the current opening, the energy consumption information, the return water temperature information, and the supply water temperature information.

6. The method according to claim 2, characterized in that Determining the chilled water valve control temperature according to the air supply volume threshold, the opening threshold, the preset first temperature threshold, and the preset second temperature threshold includes: Determining the initial control temperature of the chilled water valve according to the preset first temperature threshold and the preset second temperature threshold; Determine the current energy consumption of the air conditioner according to the initial control temperature of the chilled water valve; wherein the current energy consumption of the air conditioner includes the current energy consumption of the fan and the current energy consumption of the chilled water pump; The chilled water valve control temperature is determined according to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the air supply volume threshold, the opening threshold, and the current energy consumption.

7. The method according to claim 6, characterized in that Determining the chilled water valve control temperature according to the preset first temperature threshold, the preset second temperature threshold, the initial control temperature, the air supply volume threshold, the opening threshold, and the current energy consumption includes: Adjusting the initial control temperature to obtain an adjusted control temperature; According to the preset first temperature threshold, the preset second temperature threshold, the adjusted control temperature, the air supply volume threshold, and the opening threshold, determining a correlation relationship between the air supply volume and the temperature as a first relationship, and determining a correlation relationship between the opening of the water valve and the temperature as a second relationship; Acquire a current temperature, and adjust an air supply volume and / or an opening of a water valve of the air conditioner according to the current temperature, the first relationship, and the second relationship; Acquire the energy consumption of the air conditioner after adjustment, and if the current energy consumption is greater than the energy consumption of the air conditioner after adjustment, adjust the adjusted control temperature of the refrigeration pump to obtain a new control temperature; Determining a new first relationship and a new second relationship according to the preset first temperature threshold, the preset second temperature threshold, the new control temperature, the air supply volume threshold, and the opening threshold; Obtaining the current temperature again, and adjusting the air supply volume and / or the opening of the water valve of the air conditioner according to the current temperature obtained again, the new first relationship, and the new second relationship; The energy consumption of the adjusted air conditioner is obtained again until the energy consumption obtained again is greater than the energy consumption obtained last time, and then the new control temperature is determined as the chilled water valve control temperature.

8. The method according to any one of claims 3 to 7, characterized in that: Also includes: Determining the cooling capacity of the air conditioner according to the return air temperature information and the supply air temperature information of the air conditioner; Determining the cooling demand of the cabinet according to the energy consumption information of the cabinet; If the cooling capacity is less than the cooling demand, determining a target opening of the water valve according to the cooling capacity, the cooling demand, the opening threshold, and a preset rated opening value; The water valve of the air conditioner is adjusted according to the target opening.

9. A temperature control device based on air conditioning, characterized in that: include: an acquisition unit, used to acquire energy consumption information of the cabinet and control information of the air conditioner; wherein the air conditioner is used to control the temperature of the cabinet, the air conditioner is equipped with a fan, a refrigeration pump and a heat exchanger, and the control information represents the working condition of the fan, the working condition of the refrigeration pump and the working condition of the heat exchanger; A determination unit, configured to determine a chilled water valve control temperature according to the energy consumption information, the control information, a preset first temperature threshold, and a preset second temperature threshold; wherein the chilled water valve control temperature is used to control the degree of switching of the chilled water valve in the heat exchanger; A control unit, used to control the fan and refrigeration pump of the air conditioner based on the real-time current temperature according to the chilled water valve control temperature, the energy consumption information, the control information, the preset first temperature threshold, and the preset second temperature threshold; wherein the preset first temperature threshold is less than the preset second temperature threshold.

10. An electronic device based on temperature control of air conditioner, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 8.

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