Refrigeration control method and device, indirect evaporative cooling air conditioner, and storage medium

Abstract

The present invention provides a refrigeration control method and device thereof, an indirect evaporative cooling air conditioner, and a computer-readable storage medium. The refrigeration control method is applied to an indirect evaporative cooling air conditioner, and the indirect evaporative cooling air conditioner is provided with a parameter detection component and an operation component for refrigeration; the refrigeration control method includes: obtaining the air temperature parameter of the current environment through the parameter detection component; obtaining temperature threshold information according to the historical weather data of the area where the indirect evaporative cooling air conditioner is currently located; and controlling the working state of the operation component according to the temperature threshold information and the air temperature parameter. In the embodiment of the present invention, the working state control of the operation component can be realized more accurately and reliably according to the environmental conditions of the current area, so that the refrigeration control effect of the indirect evaporative cooling air conditioner can be improved, thereby meeting the user's use requirements for the indirect evaporative cooling air conditioner under local conditions.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the technical field of air conditioners, and in particular to a refrigeration control method and device thereof, an indirect evaporative cooling air conditioner, and a computer-readable storage medium. Background Art

[0002] At present, in the field of air conditioning, indirect evaporative cooling air conditioners are more energy-efficient than traditional air conditioners, so indirect evaporative cooling air conditioners are gradually favored by users. However, the refrigeration control method of traditional indirect evaporative cooling air conditioners is only set from the perspective of energy saving. In fact, the geographical conditions where the indirect evaporative cooling air conditioners are located will also have a certain impact on refrigeration control. For example, since the traditional control method only considers energy saving but not water saving, it leads to high water consumption. Therefore, for water-scarce areas, indirect evaporative cooling air conditioners often have poor cooling effects due to water restrictions, and thus cannot meet the user's demand for air conditioning under local conditions. Summary of the invention

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The embodiments of the present invention provide a refrigeration control method and device thereof, an indirect evaporative cooling air conditioner, and a computer-readable storage medium, which can meet the user's demand for using the indirect evaporative cooling air conditioner under local conditions.

[0005] In a first aspect, an embodiment of the present invention provides a refrigeration control method, which is applied to an indirect evaporative cooling air conditioner, wherein the indirect evaporative cooling air conditioner is provided with a parameter detection component and an operation component for performing refrigeration;

[0006] The refrigeration control method comprises:

[0007] Acquiring the air temperature parameter of the current environment through the parameter detection component;

[0008] Obtaining temperature threshold information based on historical weather data of the area where the indirect evaporative cooling air conditioner is currently located;

[0009] The working state of the operating component is controlled according to the temperature threshold information and the air temperature parameter.

[0010] In a second aspect, an embodiment of the present invention further provides a refrigeration control device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the refrigeration control method as described above when executing the computer program.

[0011] In a third aspect, an embodiment of the present invention further provides an indirect evaporative cooling air conditioner, comprising the refrigeration control device as described above.

[0012] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the refrigeration control method as described above.

[0013] The embodiment of the present invention includes: a refrigeration control method, which is applied to an indirect evaporative cooling air conditioner, wherein the indirect evaporative cooling air conditioner is provided with a parameter detection component and an operation component for refrigeration; the refrigeration control method includes: obtaining the air temperature parameter of the current environment through the parameter detection component; obtaining temperature threshold information according to the historical weather data of the area where the indirect evaporative cooling air conditioner is currently located; and controlling the working state of the operation component according to the temperature threshold information and the air temperature parameter. In the embodiment of the present invention, the air temperature parameter of the current environment is obtained through the parameter detection component, so that the influence of the air in the current environment on the indirect evaporative cooling air conditioner can be obtained according to the air temperature parameter, and the temperature threshold information is also obtained through the historical weather data of the area where the indirect evaporative cooling air conditioner is currently located, so that the historical refrigeration control of the indirect evaporative cooling air conditioner can be understood based on the temperature threshold information. Therefore, combined with the influence of the air in the current environment on the indirect evaporative cooling air conditioner and the historical refrigeration control of the indirect evaporative cooling air conditioner, the working state control of the operation component can be more accurately and reliably realized according to the environmental conditions of the current area, so that the refrigeration control effect of the indirect evaporative cooling air conditioner can be improved, thereby meeting the user's use requirements for the indirect evaporative cooling air conditioner under local conditions.

[0014] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0016] Figure 1 is a schematic diagram of an indirect evaporative cooling air conditioner provided by one embodiment of the present invention;

[0017] Figure 2 is a flow chart of a refrigeration control method provided by an embodiment of the present invention;

[0018] Figure 3is a flow chart of obtaining temperature threshold information in a refrigeration control method provided by an embodiment of the present invention;

[0019] Figure 4 is a flow chart of controlling the working state of an operating component in a refrigeration control method provided by an embodiment of the present invention;

[0020] Figure 5 is a flow chart of controlling the working state of an operating component in a refrigeration control method provided by another embodiment of the present invention;

[0021] Figure 6 is a flow chart of controlling the working state of an operating component in a refrigeration control method provided by another embodiment of the present invention;

[0022] Figure 7 is a flow chart of controlling the working state of an operating component in a refrigeration control method provided by another embodiment of the present invention;

[0023] Figure 8 It is a schematic diagram of an indirect evaporative cooling air conditioner provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0026] The present invention provides a refrigeration control method and device thereof, an indirect evaporative cooling air conditioner, and a computer-readable storage medium. The air temperature parameters of the current environment are obtained through a parameter detection component, so that the influence of the air in the current environment on the indirect evaporative cooling air conditioner can be obtained according to the air temperature parameters, and temperature threshold information is obtained through historical weather data of the current area where the indirect evaporative cooling air conditioner is located, so that the historical refrigeration control situation of the indirect evaporative cooling air conditioner can be understood based on the temperature threshold information. Therefore, combined with the influence of the air in the current environment on the indirect evaporative cooling air conditioner and the historical refrigeration control situation of the indirect evaporative cooling air conditioner, the working state control of the operating component can be more accurately and reliably realized according to the environmental conditions of the current area, so that the refrigeration control effect of the indirect evaporative cooling air conditioner can be improved, thereby meeting the user's use requirements for the indirect evaporative cooling air conditioner under local conditions.

[0027] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0028] like Figure 1 As shown, Figure 1 Schematic diagram of an indirect evaporative cooling air conditioner 600 provided in accordance with an embodiment of the present invention.

[0029] exist Figure 1 In the example, the indirect evaporative cooling air conditioner 600 is provided with an operating component, and is also provided with a filter 400 and a heat exchange core 500, wherein the operating component may include but is not limited to: a first refrigeration component 100, a humidity adjustment component 200 and a second refrigeration component 300, wherein the first refrigeration component 100 includes an external fan system 110 and an internal fan system 120, and is used to exchange heat between the external fan system 110 and the internal fan system 120 through the heat exchange core 500 to achieve the effect of cooling the indirect evaporative cooling air conditioner 600; the humidity adjustment component 200 is used to humidify the current ambient air, including a spray water pump 210 and a water receiving tray 220; the second refrigeration component 300 is used to perform cooling in a mechanical manner, including a compressor 310, a condenser 330 and an evaporator 320.

[0030] It should be noted that both the “external fan system 110” and the “internal fan system 120” are relative to the indirect evaporative cooling air conditioner 600, i.e., they are respectively arranged outside and inside the indirect evaporative cooling air conditioner 600, and the “current environment” refers to the external environment of the indirect evaporative cooling air conditioner 600. Figure 1 The directions of the arrows in the figure all refer to the direction of “wind”, and the “wind” can come from different sides inside or outside the indirect evaporative cooling air conditioner 600.

[0031] In one embodiment, the first refrigeration component 100 can operate independently by performing heat exchange between the external fan system 110 and the internal fan system 120, that is, the air entering the indirect evaporative cooling air conditioner 600 from the filter 400 can pass through the heat exchange core 500 and realize heat exchange under the action of the external fan system 110 and the internal fan system 120. In this case, it is only necessary to adjust the real-time rotation speed of the external fan system 110 and the internal fan system 120, so that the internal circulating air can be cooled through the heat exchange of the air volume, thereby achieving the cooling effect of the indirect evaporative cooling air conditioner 600, and the corresponding cold air of the air can be provided to places with cold demand such as data rooms.

[0032] In one embodiment, when the cooling capacity provided by the first refrigeration component 100 cannot meet the cooling requirements of the indirect evaporative cooling air conditioner 600, the humidity adjustment component 200 can be used to cooperate with the first refrigeration component 100 to provide more cooling capacity. Specifically, a certain output amount of pressurized liquid water is provided by the spray water pump 210, so that water is stored in the water receiving tray 220 and sprayed on the external circulating air of the indirect evaporative cooling air conditioner 600 accordingly, thereby reducing the dry bulb temperature of the outdoor air entering the indirect evaporative cooling air conditioner 600. In this case, the outdoor air and the indoor air are heat exchanged to obtain the required cooling capacity.

[0033] In one embodiment, when the cooling capacity obtained by operating the humidity adjustment component 200 in cooperation with the first refrigeration component 100 still cannot meet the requirements, the second refrigeration component 300 can be further operated on this basis to provide more cooling capacity. Specifically, under the power control of the compressor 310, the external circulating air after spraying corresponding to the external fan system 110 passes through the condenser 330, and the internal circulating air corresponding to the internal fan system 120 passes through the evaporator 320. In this case, the outdoor air at the front end of the air conditioner 600 is heat exchanged with the indoor air based on indirect evaporative cooling, so that the required cooling capacity can be obtained.

[0034] In one embodiment, when the cooling capacity provided by the first refrigeration component 100 cannot meet the cooling requirements of the indirect evaporative cooling air conditioner 600, the second refrigeration component 300 can be used to cooperate with the first refrigeration component 100 to provide more cooling capacity. Under the power control of the compressor 310, the external circulation air corresponding to the external fan system 110 passes through the condenser 330, and the internal circulation air corresponding to the internal fan system 120 passes through the evaporator 320. In this case, the required cooling capacity can be obtained based on the heat exchange between the outdoor air and the indoor air at the front end of the indirect evaporative cooling air conditioner 600.

[0035] In one embodiment, in addition to using a compression refrigeration device composed of a compressor 310, a condenser 330 and an evaporator 320, the second refrigeration component 300 can also be replaced by a chilled water refrigeration device. That is, compared with the aforementioned compression refrigeration device, the compressor 310 and the condenser 330 are cancelled at this time, and the evaporator 320 in the indirect evaporative cooling air conditioner 600 is adjusted to a surface cooler, and an electric flow control valve for cooperating with the surface cooler to achieve adjustment is added, so that the internal circulating air can absorb the cold provided by the surface cooler, thereby reducing its temperature. In this case, based on the heat exchange between the indoor air and the outdoor air at the front end of the indirect evaporative cooling air conditioner 600, the required cooling capacity can be obtained.

[0036] In one embodiment, the indirect evaporative cooling air conditioner 600 is also provided with a parameter detection component, which can be arranged on the external side and the heat exchange inlet side of the indirect evaporative cooling air conditioner 600. The parameter detection component is used to obtain real-time air temperature parameters inside or outside the indirect evaporative cooling air conditioner 600, so as to provide reference data for the working state of the indirect evaporative cooling air conditioner 600. The parameter detection component can be a temperature sensor or humidity sensor of various models, or a temperature and humidity sensor of various models, or a related circuit for detecting temperature and / or humidity, etc. Since the parameter detection part belongs to the commonly used technology in this field, its working principle is not described in detail here to avoid redundancy.

[0037] The indirect evaporative cooling air conditioner 600 and the application scenario described in the embodiment of the present invention are intended to more clearly illustrate the technical solution of the embodiment of the present invention, and do not constitute a limitation on the technical solution provided by the embodiment of the present invention. Those skilled in the art can know that with the evolution of the indirect evaporative cooling air conditioner 600 and the emergence of new application scenarios, the technical solution provided by the embodiment of the present invention is also applicable to similar technical problems.

[0038] It can be understood by those skilled in the art that Figure 1 The indirect evaporative cooling air conditioner 600 shown in the figure does not constitute a limitation on the embodiment of the present invention, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0039] Based on the structure of the above-mentioned indirect evaporative cooling air conditioner 600, various embodiments of the refrigeration control method of the present invention are proposed.

[0040] like Figure 2 As shown, Figure 2 is a flow chart of a refrigeration control method provided by an embodiment of the present invention. The refrigeration control method can be applied to Figure 1 The indirect evaporative cooling air conditioners shown include, but are not limited to:

[0041] Step S100, obtaining the air temperature parameter of the current environment through the parameter detection component;

[0042] Step S200, obtaining temperature threshold information according to historical weather data of the area where the indirect evaporative cooling air conditioner is currently located;

[0043] Step S300: Control the working state of the operating component according to the temperature threshold information and the air temperature parameter.

[0044] In one embodiment, the air temperature parameters of the current environment are obtained through a parameter detection component, so that the influence of the air in the current environment on the indirect evaporative cooling air conditioner can be obtained based on the air temperature parameters, and the temperature threshold information is obtained through the historical weather data of the area where the indirect evaporative cooling air conditioner is currently located, so that the historical refrigeration control of the indirect evaporative cooling air conditioner can be understood based on the temperature threshold information. Therefore, combined with the influence of the air in the current environment on the indirect evaporative cooling air conditioner and the historical refrigeration control of the indirect evaporative cooling air conditioner, the working state control of the operating component can be more accurately and reliably achieved according to the environmental conditions of the current area, thereby improving the refrigeration control effect of the indirect evaporative cooling air conditioner, thereby meeting the user's demand for the use of the indirect evaporative cooling air conditioner under local conditions.

[0045] In one embodiment, the air temperature parameters may include but are not limited to dry-bulb temperature parameters and wet-bulb temperature parameters, wherein the dry-bulb temperature parameters are used to characterize the dry-bulb temperature, which refers to the value read from a dry-bulb thermometer exposed to the air but not directly exposed to the sun, and can be equivalent to the temperature measured by a thermometer in ordinary air, that is, the air temperature mentioned in the weather forecast; different from the dry-bulb temperature, the wet-bulb temperature refers to the current temperature of the environment when the air in the environment reaches a saturated state and the environment reaches thermal equilibrium, that is, the wet-bulb temperature is the lowest temperature that can be reached by the current environment only by evaporating water, which is also called the adiabatic saturation temperature in thermodynamics.

[0046] like Figure 3 As shown, in the case where the temperature threshold information includes the first temperature threshold, step S200 includes but is not limited to:

[0047] Step S210, setting a temperature reference threshold value according to historical weather data of the area where the indirect evaporative cooling air conditioner is currently located;

[0048] Step S220, determining the daily water consumption of the area where the indirect evaporative cooling air conditioner is currently located according to the temperature reference threshold and historical weather data;

[0049] Step S230: When the daily water consumption and the daily water supply threshold of the area where the indirect evaporative cooling air conditioner is currently located meet a first condition, the temperature reference threshold is determined to be a first temperature threshold.

[0050] In one embodiment, a temperature reference threshold is set according to historical weather data of the area where the indirect evaporative cooling air conditioner is currently located, that is, the influence of the temperature parameters of the current area under historical weather conditions on the indirect evaporative cooling air conditioner is determined, and then the daily water consumption of the area where the indirect evaporative cooling air conditioner is currently located can be determined based on the temperature reference threshold and the historical weather data. Since for specific areas, especially water-scarce or water-saving areas (such as northern China, etc.), the daily water supply is limited, that is, there is a daily water supply threshold. Therefore, when the daily water consumption is within the range of the daily water supply threshold, it indicates that the daily water consumption determined based on the temperature reference threshold and the historical weather data is in line with the actual water supply situation in the current area. Therefore, the temperature reference threshold can be determined as the required temperature threshold information, so that when the working state of the operating component is controlled based on the temperature reference threshold and the air temperature parameter, the water supply situation in the current area can be taken into account at the same time. It can be seen that the indirect evaporative cooling air conditioner has a wider applicability, especially can be applied to water-scarce or water-saving areas.

[0051] In one embodiment, the current area where the indirect evaporative cooling air conditioner is currently located can be limited to any range. For example, the current area can be limited to a town, county or city, etc., or it can be certain specific areas in the town, county or city as mentioned above, which is not limited in the present embodiment; in addition, historical weather data may include but is not limited to: historical daily water consumption thresholds, historical wind volume values, historical air enthalpy values, historical air dry-bulb temperature values, historical air wet-bulb temperature values ​​or historical humidity values, etc., and may also include historical weather conditions related to the current area, etc., which is not limited in the present embodiment.

[0052] In one embodiment, the first condition is used to limit the daily water consumption to be less than or equal to the daily water supply threshold of the current area. The specific form may be a difference form or other forms similar to the difference form, such as a variance form, a mean form, etc. Taking the difference form as an example, the first condition is limited to the difference between the daily water consumption and the daily water supply threshold being zero or negative, that is, when the daily water consumption and the daily water supply threshold meet the difference condition, the temperature reference threshold can be determined to be the first temperature threshold. Similarly, the variance form, the mean form, etc. can also be similarly limited, which will not be elaborated here.

[0053] In one embodiment, the daily water consumption of the indirect evaporative cooling air conditioner in the current region is determined by a first formula according to the temperature reference threshold and historical weather data. Specifically, the first formula is:

[0054]

[0055] Among them, Q w.d is the daily water consumption, Q a.o h is the air volume value of the indirect evaporative cooling air conditioner in the current area at time i; i is the air enthalpy value of the indirect evaporative cooling air conditioner in the current area at time i; t id is the air dry bulb temperature of the indirect evaporative cooling air conditioner at the current location at time i; t iw is the wet-bulb temperature of the air in the area where the indirect evaporative cooling air conditioner is currently located at time i; n is the number of moments in which the dry-bulb temperature of the air in the area where the indirect evaporative cooling air conditioner is currently located is greater than the temperature reference threshold in consecutive time periods during the historical statistical period, and the historical statistical period is determined based on historical weather data.

[0056] In one embodiment, all parameters corresponding to the above-mentioned moment i can be obtained from historical weather data. Therefore, when calculating the daily water consumption, it is only necessary to determine n. Since the weather data in different regions are different, the historical statistical period can be selected according to the historical weather data. For example, within the time corresponding to the historical weather data (for example, historical weather data of the past ten years is found), the historical statistical period can be selected as one or several years, or any quarter of a year, or any month in a quarter, etc. Similarly, the continuous time period can also be selected according to the actual situation, such as taking a day (i.e. 24 hours) as a continuous time period for statistics, or taking part of the hours in a day (such as 6 hours) as a continuous time period for statistics, etc.

[0057] In one embodiment, when the daily water consumption and the daily water supply threshold of the area where the indirect evaporative cooling air conditioner is currently located do not meet the first condition, the temperature reference threshold can be adjusted according to the historical weather data, and the daily water consumption value can be calculated again based on the adjusted temperature reference threshold and the historical weather data, and the calculated daily water consumption and the daily water supply threshold are compared to see whether they meet the first condition, and so on, the temperature reference threshold can be continuously adjusted until the daily water consumption and the daily water supply threshold calculated based on the temperature reference threshold meet the first condition, then the adjusted temperature reference threshold can be determined to be the first temperature reference threshold. Temperature threshold, for example, the first temperature threshold can be adjusted according to different historical statistical periods (such as one year, one season or one month) to achieve accurate control of water supply by year, season or month, and reduce the differential loss of water resources caused by differences in meteorological parameters in different years, seasons or months. Assuming that the maximum daily water consumption of the indirect evaporative cooling air conditioner in July is 500kg, but in fact the maximum daily water consumption in October may be only 300kg, the temperature reference threshold can be adjusted in real time according to different months, so as to avoid supplying 500kg of water in October, so as to avoid unnecessary water supply burden.

[0058] It should be noted that the above first formula is only an example for calculating daily water consumption, and is not limited to calculating daily water consumption only by this formula. In fact, weather data in different regions are generally different. Therefore, corresponding formulas can be summarized or designed based on specific historical weather data to calculate daily water consumption. This is not limited in the present embodiment.

[0059] like Figure 4 As shown, in the case where the temperature threshold information includes a first temperature threshold and a second temperature threshold, step S300 includes but is not limited to:

[0060] Step S310: When the dry-bulb temperature parameter is greater than the first temperature threshold and the wet-bulb temperature parameter is greater than the second temperature threshold, the first refrigeration component, the humidity adjustment component and the second refrigeration component are controlled to operate.

[0061] In one embodiment, after the first temperature threshold and the second temperature threshold are determined, if the range of several wet-bulb temperature parameters is within a range greater than the first temperature threshold, it means that the current ambient temperature is high, and the cooling capacity that can be obtained only by heat exchange is difficult to meet the requirements. In addition, if the wet-bulb temperature parameter is greater than the second temperature threshold at this time, it means that the humidity in the air is relatively large, which will also have a certain impact on the humidification of the humidity adjustment component. Therefore, in this case, the refrigeration environment is relatively harsh, so not only a humidity adjustment component is required, but also a second refrigeration component is required for auxiliary refrigeration, so as to meet the refrigeration capacity requirements.

[0062] like Figure 5 As shown, in the case where the temperature threshold information includes a first temperature threshold and a second temperature threshold, step S300 includes but is not limited to:

[0063] Step S320, when the dry-bulb temperature parameter is greater than the first temperature threshold and the wet-bulb temperature parameter is less than or equal to the second temperature threshold, the first refrigeration component and the humidity adjustment component are controlled to operate, and the second refrigeration component is controlled not to operate.

[0064] In one embodiment, after the first temperature threshold and the second temperature threshold are determined, if the range of several wet-bulb temperature parameters is within a range greater than the first temperature threshold, it means that the current ambient temperature is high, and the cooling capacity obtained only by heat exchange is difficult to meet the requirements. Moreover, if the wet-bulb temperature parameter is less than or equal to the second temperature threshold at this time, it means that the humidity in the air is relatively small, which is convenient for the humidity adjustment component to humidify the current environment. Therefore, in this case, only the humidity adjustment component is needed to provide the corresponding cooling capacity, so there is no need to use the second refrigeration component for auxiliary refrigeration, which has an energy-saving effect while ensuring the normal operation of the indirect evaporative cooling air conditioner.

[0065] like Figure 6As shown, in the case where the temperature threshold information includes the second temperature threshold, step S300 includes but is not limited to:

[0066] Step S330: When the dry-bulb temperature parameter is less than or equal to the second temperature threshold, the first refrigeration component is controlled to operate, and the humidity adjustment component and the second refrigeration component are controlled not to operate.

[0067] In one embodiment, after the second temperature threshold is determined, if the range of several bulb temperature parameters is within a range less than or equal to the second temperature threshold, it means that the current ambient temperature is low, which is convenient for internal and external heat exchange, that is, the required cooling capacity can be obtained through heat exchange. Therefore, in this case, only the first refrigeration component is needed to provide the corresponding cooling capacity, so there is no need to use a humidity adjustment component for humidification or a second refrigeration component for auxiliary cooling, which has energy-saving and water-saving effects while ensuring the normal operation of the indirect evaporative cooling air conditioner.

[0068] like Figure 7 As shown, in the case where the temperature threshold information includes a first temperature threshold and a second temperature threshold, step S300 includes but is not limited to:

[0069] Step S340: When the dry-bulb temperature parameter is greater than the second temperature threshold and less than or equal to the first temperature threshold, the first refrigeration component and the second refrigeration component are controlled to operate, and the humidity adjustment component is controlled not to operate.

[0070] In one embodiment, after the first temperature threshold and the second temperature threshold are determined, if the range of the plurality of bulb temperature parameters is greater than the second temperature threshold and less than or equal to the first temperature threshold, it means that the current ambient temperature is at a medium level, and the cooling capacity obtained only by heat exchange is difficult to meet the requirements, and the second refrigeration component needs to be used for auxiliary cooling. In this case, since the ambient temperature is moderate, it is not necessary to spray the current ambient air, and a water-saving effect is achieved while ensuring the normal operation of the indirect evaporative cooling air conditioner.

[0071] It is worth noting that, through the above embodiments, it can be seen that, as long as the dry-bulb temperature parameters and the wet-bulb temperature parameters are obtained within any range, the operating components can be adapted and controlled accordingly, so that the operating components can maintain a good working condition at any time, and energy and water saving can be achieved accordingly. Especially for energy-deficient areas, water-scarce or water-scarce areas, this control method has immeasurable advantages.

[0072] In one embodiment, the above-mentioned second temperature threshold can be set according to actual conditions, and is not limited in the present embodiment. For example, it can be selected as 16°C to 22°C according to normal temperature, or it can be set to the maximum dry-bulb temperature in the outdoor environment that meets the cooling capacity requirements. Alternatively, for a heat exchange core of a selected structure and size, when the temperature and humidity requirements of the return air on the inside of the indirect evaporative cooling air conditioner are obtained, it can be obtained by the air volume difference between the external fan system and the internal fan system, etc., which will not be elaborated here.

[0073] In one embodiment, when the second temperature threshold satisfies the condition of being less than or equal to the first temperature threshold, and at the same time, the first temperature threshold satisfies the condition of being less than or equal to the annual maximum dry-bulb temperature of the region, in one case, when the first temperature threshold is equal to the annual maximum dry-bulb temperature, the water consumption of the indirect evaporative cooling air conditioner is zero. At this time, the humidity adjustment component does not need to be configured, and only the first refrigeration component and the second refrigeration component need to be controlled to execute, which can save configuration costs and have a water-saving effect.

[0074] In one embodiment, when the first temperature threshold is greater than or equal to the second temperature threshold and less than the local annual maximum wet-bulb temperature, the indirect evaporative cooling air conditioner does not need to rely on the mechanical refrigeration assistance of the second refrigeration component, and can avoid adding related configurations of the second refrigeration component, which can save configuration costs and have a power-saving effect.

[0075] In addition, an embodiment of the present invention provides a refrigeration control device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor.

[0076] It should be noted that the refrigeration control device in this embodiment can be applied to Figure 1 In the indirect evaporative cooling air conditioner of the embodiment shown, the refrigeration control device in this embodiment can be configured Figure 1 A portion of the indirect evaporative cooling air conditioner in the illustrated embodiments all belong to the same inventive concept, and therefore these embodiments have the same implementation principles and technical effects, which will not be described in detail herein.

[0077] The non-transient software program and instructions required to implement the refrigeration control method of the above embodiment are stored in the memory. When executed by the processor, the refrigeration control method of the above embodiment is executed, for example, the above described Figure 2 The method steps S100 to S300, Figure 3 Steps S210 to S230 of the method, Figure 4 Step S310 of the method, Figure 5 In the method step S320, Figure 6 Method step S330 or Figure 7 Method step S340 in .

[0078] In addition, if Figure 8 As shown, Figure 8 2 is a schematic diagram of an indirect evaporative cooling air conditioner 600 provided in accordance with another embodiment of the present invention. The indirect evaporative cooling air conditioner 600 includes a refrigeration control device 610 as described in the above embodiment.

[0079] It should be noted that since the indirect evaporative cooling air conditioner 600 in this embodiment and the refrigeration control device 610 in the above embodiment belong to the same inventive concept, the specific implementation of the indirect evaporative cooling air conditioner 600 in this embodiment can refer to the specific implementation of the refrigeration control device 610 in the above embodiment. To avoid redundancy, the specific implementation of the indirect evaporative cooling air conditioner 600 in this embodiment will not be repeated here.

[0080] The device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, that is, they may be located in one place, or may be distributed on multiple other components, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0081] In addition, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions. The computer-executable instructions are executed by a processor or a computer, for example, by a processor in the above node embodiment, so that the above processor can execute the refrigeration control method in the above embodiment, for example, execute the above described Figure 2 The method steps S100 to S300, Figure 3 Steps S210 to S230 of the method, Figure 4 Step S310 of the method, Figure 5 In the method step S320, Figure 6 Method step S330 or Figure 7 Method step S340 in .

[0082] It will be appreciated by those skilled in the art that all or some of the steps and systems in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory, or other memory technologies, or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer, and computer storage media also include, but are not limited to, storage media accessible by a single-chip microcomputer, a PLC, or other controllers. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0083] The above is a specific description of the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. A refrigeration control method, applied to an indirect evaporative cooling air conditioner, wherein the indirect evaporative cooling air conditioner is provided with a parameter detection component and an operation component for performing refrigeration; The refrigeration control method comprises: Acquiring the air temperature parameter of the current environment through the parameter detection component; Obtaining temperature threshold information based on historical weather data of the area where the indirect evaporative cooling air conditioner is currently located; Controlling the working state of the operating component according to the temperature threshold information and the air temperature parameter; Wherein, the temperature threshold information includes a first temperature threshold; The step of obtaining temperature threshold information according to historical weather data of the area where the indirect evaporative cooling air conditioner is currently located includes: Determining the daily water consumption of the area where the indirect evaporative cooling air conditioner is currently located by a first formula according to a preset temperature reference threshold and the historical weather data, wherein the temperature reference threshold is set according to the historical weather data; When the daily water consumption and the daily water supply threshold of the area where the indirect evaporative cooling air conditioner is currently located meet a first condition, determining the temperature reference threshold to be a first temperature threshold, wherein the first condition is used to limit the daily water consumption to be less than or equal to the daily water supply threshold of the area where the indirect evaporative cooling air conditioner is currently located; The first formula is: ; in, is the daily water consumption, The indirect evaporative cooling air conditioner is currently located in The wind volume value at the moment; The indirect evaporative cooling air conditioner is currently located in The air enthalpy at the time; The indirect evaporative cooling air conditioner is currently located in The air dry-bulb temperature at the time; The indirect evaporative cooling air conditioner is currently located in The air wet bulb temperature value at the moment; It is the number of moments in which the air dry-bulb temperature in the area where the indirect evaporative cooling air conditioner is currently located is greater than the temperature reference threshold in continuous time periods during a historical statistical period, and the historical statistical period is determined based on the historical weather data.

2. The method according to claim 1, characterized in that The air temperature parameter includes a dry-bulb temperature parameter and a wet-bulb temperature parameter, the temperature threshold information also includes a second temperature threshold, and the operating component includes a first refrigeration component for refrigerating in a heat exchange manner, a humidity adjustment component for humidifying the current ambient air, and a second refrigeration component for refrigerating in a mechanical manner; The controlling the working state of the operating component according to the temperature threshold information and the air temperature parameter includes: When the dry-bulb temperature parameter is greater than the first temperature threshold and the wet-bulb temperature parameter is greater than the second temperature threshold, the first refrigeration component, the humidity adjustment component and the second refrigeration component are controlled to operate.

3. The method according to claim 2, characterized in that The controlling the working state of the operating component according to the temperature threshold information and the air temperature parameter also includes: When the dry-bulb temperature parameter is greater than the first temperature threshold and the wet-bulb temperature parameter is less than or equal to the second temperature threshold, the first refrigeration component and the humidity adjustment component are controlled to operate, and the second refrigeration component is controlled not to operate.

4. The method according to claim 2, characterized in that: The controlling the working state of the operating component according to the temperature threshold information and the air temperature parameter also includes: When the dry-bulb temperature parameter is less than or equal to the second temperature threshold, the first refrigeration component is controlled to operate, and the humidity adjustment component and the second refrigeration component are controlled not to operate.

5. The method according to claim 2, characterized in that: The controlling the working state of the operating component according to the temperature threshold information and the air temperature parameter also includes: When the dry-bulb temperature parameter is greater than the second temperature threshold and less than or equal to the first temperature threshold, the first refrigeration component and the second refrigeration component are controlled to operate, and the humidity adjustment component is controlled not to operate.

6. A refrigeration control device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the refrigeration control method according to any one of claims 1 to 5 when executing the computer program.

7. An indirect evaporative cooling air conditioner, characterized in that: The refrigeration control device comprises the refrigeration control device as claimed in claim 6.

8. A computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are used to execute the refrigeration control method according to any one of claims 1 to 5.

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