Control method and device for latent heat type air conditioner, and latent heat type air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method of a latent heat type air conditioner. The control method of the latent heat type air conditioner comprises the following steps: obtaining a first current temperature of a condenser surface and a second current temperature of a spraying unit; obtaining a first temperature difference between the first current temperature and the second current temperature; determining a current spraying rate of the spraying unit according to the first temperature difference; and controlling the spraying unit according to the current spraying rate. The control method of the latent heat type air conditioner is favorable for reducing the temperature of the condenser, improving the condensing effect, and further improving the evaporation effect inside an indoor evaporator and the refrigeration efficiency of the air conditioner. The application further discloses a control device of the latent heat type air conditioner and the latent heat type air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smart home, for example to a control method and device of a latent heat type air conditioner and the latent heat type air conditioner. BACKGROUND

[0002] At present, in the case that the indoor temperature is too high, the air conditioner can be used to reduce the indoor temperature to improve the user comfort. In the process of reducing the indoor temperature, if the humidity of the indoor air is large, the energy consumption of the air conditioner will be increased.

[0003] To this end, some prior art optimizes as follows: a plurality of adsorption heat exchangers having a surface provided with an adsorbent are provided, and dehumidification or humidification is performed by alternately performing an adsorption operation in which one of the plurality of adsorption heat exchangers functions as an evaporator of a refrigerant to cause the adsorbent to adsorb moisture in the air, and a regeneration operation in which the other of the plurality of adsorption heat exchangers functions as a condenser of the refrigerant to cause the moisture to be desorbed from the adsorbent. In this way, the indoor latent heat and the indoor sensible heat can be processed at the same time, and the energy efficiency ratio of the air conditioner is improved.

[0004] In the process of implementing the embodiments of the present application, it is found that at least the following problems exist in the related art:

[0005] Compared with the case that the indoor temperature and humidity are low, in the case that the indoor temperature and humidity are too high, in order to reduce the indoor temperature, the air conditioner needs to remove the indoor latent heat and the indoor sensible heat at the same time, so that the air conditioner operates at a high power, which reduces the refrigeration efficiency of the air conditioner. SUMMARY

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, the following summary has been provided. The summary is not an extensive overview of the application. It is not intended to identify key / critical elements of the application or to delineate the scope of the embodiments disclosed, but to present some aspects of the application in a simplified form as a prelude to the more detailed description that is presented later.

[0007] The embodiments of the present application provide a control method and device of a latent heat type air conditioner and the latent heat type air conditioner to solve the technical problem of low energy efficiency ratio in the process of removing the indoor latent heat and the indoor sensible heat at the same time.

[0008] In some embodiments, the latent heat type air conditioner includes a condenser and a spraying unit, the spraying unit is used to spray the surface of the condenser to cool the condenser; the control method of the latent heat type air conditioner includes: obtaining a first current temperature of the surface of the condenser and a second current temperature of the spraying unit; obtaining a first temperature difference between the first current temperature and the second current temperature; determining a current spraying rate of the spraying unit according to the first temperature difference; and controlling the spraying unit according to the current spraying rate.

[0009] Optionally, the latent heat type air conditioner further comprises a compressor, a temperature raising device, and a latent heat treatment device, the temperature raising device is internally provided with a first containing cavity, the first containing cavity is internally provided with a heat exchanger and a first fluid, one end of the heat exchanger is in communication with a gas outlet of the compressor, the other end is in communication with the condenser, the first fluid is used for raising temperature of the latent heat treatment device, so that the latent heat treatment device performs a regeneration process; the current spraying rate of the spraying unit is determined according to the first temperature difference, comprising: obtaining a first spraying rate positively related to the first temperature difference; obtaining a third current temperature of the first fluid; in the case that the third current temperature does not satisfy a high temperature condition, obtaining a second spraying rate negatively related to the third current temperature; determining the current spraying rate according to a rate difference between the first spraying rate and the second spraying rate.

[0010] Optionally, the current spraying rate is determined according to a rate difference between the first spraying rate and the second spraying rate, comprising: determining the rate difference between the first spraying rate and the second spraying rate as the current spraying rate.

[0011] Optionally, the third current temperature does not satisfy a high temperature condition, comprising: the third current temperature is lower than or equal to a first preset temperature.

[0012] Optionally, the latent heat type air conditioner further comprises a temperature lowering device, the temperature lowering device is internally provided with a second containing cavity, the second containing cavity is internally provided with a second fluid, the second fluid is used for lowering temperature of the latent heat treatment device, so that the latent heat treatment device performs a moisture absorption process; the third current temperature does not satisfy a high temperature condition, comprising: a second temperature difference between the third current temperature and a fourth current temperature of the second fluid is less than or equal to a second preset temperature.

[0013] Optionally, the latent heat type air conditioner further comprises a proportional valve, an inlet of the proportional valve is in communication with a gas outlet of the compressor, a first outlet of the proportional valve is in communication with the heat exchanger, a second outlet of the proportional valve is in communication with the condenser; the current spraying rate of the spraying unit is determined according to the first temperature difference, comprising: obtaining a first spraying rate positively related to the first temperature difference; obtaining a first refrigerant flow of the first outlet and a second refrigerant flow of the second outlet; determining a third spraying rate negatively related to the first refrigerant flow and positively related to the second refrigerant flow according to a corresponding relationship between refrigerant flow and spraying rate; determining the current spraying rate of the spraying unit according to a rate sum of the first spraying rate and the third spraying rate.

[0014] Optionally, the obtaining the first temperature difference between the first current temperature and the second current temperature comprises: in a case that the first current temperature is greater than the second current temperature, obtaining the first temperature difference between the first current temperature and the second current temperature.

[0015] In some embodiments, the latent heat type air conditioner comprises a condenser and a spraying unit for spraying the condenser surface to cool the condenser; a control device of the latent heat type air conditioner comprises: a first obtaining module, a second obtaining module, a determining module and a control module; the first obtaining module is configured to obtain a first current temperature of the condenser surface and a second current temperature of the spraying unit; the second obtaining module is configured to obtain a first temperature difference between the first current temperature and the second current temperature; the determining module is configured to determine a current spraying rate of the spraying unit according to the first temperature difference; and the control module is configured to control the spraying unit according to the current spraying rate.

[0016] In some embodiments, a control device of the latent heat type air conditioner comprises a processor and a memory storing program instructions, and the processor is configured to execute the control method of the latent heat type air conditioner provided in the foregoing embodiments when executing the program instructions.

[0017] In some embodiments, the latent heat type air conditioner comprises:

[0018] a condenser;

[0019] a spraying unit for spraying water to the condenser to cool the condenser;

[0020] the control device of the latent heat type air conditioner provided in the foregoing embodiments.

[0021] The control method and device of the latent heat type air conditioner and the latent heat type air conditioner provided in the embodiments of the present application can achieve the following technical effects:

[0022] The higher the first current temperature of the condenser surface is, the greater the first temperature difference is, so that the first temperature difference can reflect the height of the first current temperature of the condenser surface, and then the spraying unit is controlled to spray the condenser surface according to the first temperature difference, so as to cool the condenser surface, which is conducive to reducing the temperature of the condenser, improving the condensation effect, and further improving the evaporation effect inside the indoor evaporator and the refrigeration efficiency of the air conditioner.

[0023] The general description above and the following description below are exemplary and explanatory only and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0024] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting in which like references indicate similar elements, and wherein:

[0025] Figure 1 is a structural schematic diagram of a latent heat type air conditioner provided by an embodiment of the present application;

[0026] Figure 2 is a schematic diagram of a control method of a latent heat type air conditioner provided by an embodiment of the present application;

[0027] Figure 3 is a structural schematic diagram of a latent heat type air conditioner provided by an embodiment of the present application;

[0028] Figure 4 is a schematic diagram of a process for determining a current spraying rate of a spraying unit provided by an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of a control device of a latent heat type air conditioner provided by an embodiment of the present application;

[0030] Figure 6 is a schematic diagram of a control device of a latent heat type air conditioner provided by an embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to enable persons skilled in the art to better understand the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present application. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0032] The terms "first", "second", and the like in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances to implement the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0033] Unless otherwise specified, the term "a plurality of" means two or more.

[0034] In the embodiments of the present application, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means A or B.

[0035] The term "and / or", unless specified otherwise, means that the associated relationship is applicable to at least one of the elements connected by it.

[0036] Figure 1 Figure 1 is a structural schematic diagram of a latent heat type air conditioner provided by an embodiment of the present application.

[0037] The latent heat type air conditioner comprises a compressor 01, an evaporator 03 and a condenser 02. The compressor 01 is connected to the condenser 02, the condenser 02 is connected to the evaporator 03, and the evaporator 03 is connected to the compressor 01. The compressor 01 provides high-temperature and high-pressure gaseous refrigerant to the condenser 02. The gaseous refrigerant is condensed and liquefied in the condenser 02 and releases heat to form liquid refrigerant. The liquid refrigerant flows into the evaporator 03, evaporates and absorbs heat in the evaporator 03, and forms gaseous refrigerant, which is then recovered by the compressor 01.

[0038] In addition, as shown in Figure 1 The latent heat type air conditioner further comprises a spraying unit for spraying the surface of the condenser 02 to cool the condenser 02. The spraying unit can spray water or chilled brine on the surface of the condenser 02 to cool the condenser 02, thereby improving the condensing effect of the condenser 02, and further improving the evaporating effect of the indoor evaporator 03 and the refrigeration efficiency of the latent heat type air conditioner.

[0039] In general, the latent heat type air conditioner provided by the embodiment of the present application further comprises a temperature raising device 06, a temperature lowering device 09 and a latent heat treatment device 16. The temperature raising device 06 can increase the temperature of the latent heat treatment device 16, and the temperature lowering device 09 can decrease the temperature of the latent heat treatment device 16. During the temperature lowering process, the latent heat treatment device 16 is in a moisture absorption process, in which the latent heat treatment device 16 absorbs moisture in the indoor air. During the temperature raising process, the latent heat treatment device 16 is in a regeneration process, in which the latent heat treatment device 16 releases humidity to the outdoor. The latent heat treatment device 16 alternately performs the moisture absorption process and the regeneration process, thereby removing the indoor latent heat.

[0040] For example, the latent heat treatment device 16 comprises a first circulating air path 17, a second circulating air path 18 and a fan 15. The inlet and outlet of the first circulating air path 17 are arranged in the indoor, the inlet and outlet of the second circulating air path 18 are arranged in the outdoor, and the fan 15 provides air power for the first circulating air path 17 and the second circulating air path 18. After the fan 15 is started, air passes through the first circulating air path 17 or the second circulating air path 18.

[0041] In the dehumidification process of the latent heat treatment device 16, the fan 15 is turned on, the first circulating air path 17 is connected, and the second circulating air path 18 is disconnected. Under the action of the fan 15, indoor air passes through the latent heat treatment device 16 and returns to the indoor environment. In the process of air circulation, the latent heat treatment device 16 absorbs moisture in the air, thereby reducing the moisture content in the air. In the dehumidification process of the latent heat treatment device 16, the fan 15 is turned on, the first circulating air path 17 is disconnected, and the second circulating air path 18 is connected. Under the action of the fan 15, outdoor air passes through the latent heat treatment device 16 and returns to the outdoor environment. The moisture in the latent heat treatment device 16 is carried into the outdoor environment by the outdoor air, thereby preparing for the next dehumidification process.

[0042] The latent heat treatment device 16 described above can include zeolite, silica gel, activated carbon, or organic polymer materials with hydrophilic or water-absorbing properties.

[0043] In some application scenarios, the warming device 06 is provided with a first containing cavity 07, and the first containing cavity 07 is provided with a heat exchanger 08 and a first fluid. One end of the heat exchanger 08 is in communication with the gas outlet of the compressor 01, and the other end is in communication with the condenser 02. The first fluid is used to warm the latent heat treatment device 16, so that the latent heat treatment device 16 performs a regeneration process. The first fluid can be water or frozen brine. In the refrigeration process of the latent heat type air conditioner, the high-temperature and high-pressure gaseous refrigerant at the gas outlet of the compressor 01 is input into the heat exchanger 08, so that the temperature of the heat exchanger 08 is increased, and the temperature of the first fluid is increased, so that the first fluid has the ability to increase the temperature of the latent heat treatment device 16.

[0044] In the refrigeration process, the heat generated by the condenser 02 is “waste heat”. In the embodiment of the present application, the heat generated by the condenser 02 is applied to the regeneration process of the latent heat treatment device 16, thereby effectively utilizing the heat generated by the condenser 02 and improving the energy efficiency ratio of the air conditioner.

[0045] In the process of cooling the indoor environment by the air conditioner, the indoor temperature and the set temperature are obtained, and the greater the temperature difference between the indoor temperature and the set temperature, the greater the operating frequency of the compressor 01. In combination with the technical solutions in the embodiments of the present application, the greater the operating frequency of the compressor 01, the higher the pressure of the refrigerant provided by the compressor 01 to the heat exchanger 08, and the higher the temperature of the heat exchanger 08, and the higher the temperature of the first fluid, and the higher the temperature of the first fluid, the faster the temperature rising rate of the latent heat treatment device 16 in the temperature rising process; at the same time, the higher the temperature of the first fluid, the greater the maximum amplitude of the temperature change of the latent heat treatment device 16, and in the temperature lowering process, the temperature difference between the temperature of the latent heat treatment device 16 and the temperature of the temperature lowering device 09 can also be maintained to be large, so as to increase the temperature lowering speed. In this way, the temperature rising rate of the latent heat treatment device 16 and the temperature lowering rate of the latent heat device are increased, and the rate of the latent heat treatment device 16 in treating latent heat is increased, and even if the room with high humidity is cooled, the better latent heat treatment rate can be maintained, and the energy efficiency ratio of the air conditioner is improved.

[0046] Of course, in addition to the above-mentioned way of rising the temperature of the latent heat treatment module, the person skilled in the art also uses the temperature rising technology in the prior art to rise the temperature of the latent heat treatment device 16, for example, the latent heat treatment module can also be heated by using electric heating.

[0047] In some specific applications, a first circulating pipeline 11 is arranged between the temperature rising device 06 and the latent heat treatment device 16, and a first pumping unit 12 is arranged on the first circulating pipeline 11, which provides power for the first fluid to circulate between the temperature rising device 06 and the latent heat treatment device 16, and the first pumping unit 12 can be a water pump.

[0048] The above-mentioned temperature lowering device 09 can be provided with a second containing cavity 10 to store a second fluid, and the second fluid is used to lower the temperature of the latent heat treatment device 16; the second fluid can be water or frozen brine. A second circulating pipeline 13 can be arranged between the temperature lowering device 09 and the latent heat treatment device 16, and a second pumping unit 14 can be arranged on the second circulating pipeline 13, which can provide power for the second fluid to circulate between the temperature rising device 06 and the latent heat treatment device 16; the second pumping unit 14 can be a water pump.

[0049] In some specific applications, the latent heat type air conditioner can also include a third circulating pipeline 04, and a spraying unit can be arranged on the third circulating pipeline 04, and the spraying direction of the spraying unit points to the condenser 02, which is used to spray the second fluid to the surface of the condenser 02; the third circulating pipeline 04 can also include a third pumping unit 05, which communicates with the second containing cavity 10 and the spraying unit respectively, and pumps the second fluid from the second containing cavity 10 to the spraying unit; the third pumping unit 05 can be a water pump.

[0050] In the operation of the latent heat type air conditioner, the heat exchanger 08 arranged between the compressor 01 and the condenser 02 heats the first fluid in the temperature raising device 06, so that the temperature raising device 06 has the function of heating the latent heat treatment device 16. In this case, the temperature of the condenser 02 is lowered, and the second fluid in the second containing cavity 10 is sprayed to the condenser 02 to make the condenser 02 dissipate heat faster. Since the temperature of the condenser 02 is lower, the temperature of the second fluid in the second containing cavity 10 is not too high, so that the lower limit temperature of the latent heat treatment device 16 is not too high, that is, the temperature variation range of the latent heat treatment device 16 is still large, and the temperature raising rate or the temperature lowering rate of the latent heat treatment device 16 is still high, that is, the speed of removing the indoor latent heat of the latent heat treatment device 16 is still fast.

[0051] Alternatively, the temperature lowering device 09 further comprises a third containing cavity (not shown in the figure), and the third containing cavity is provided with a third fluid. The third pump unit 05 is in communication with the third containing cavity and the spraying unit, respectively, and pumps the third fluid from the third containing cavity to the spraying unit. The third fluid can be water or refrigerated brine. Figure 1

[0052] Figure 2 FIG. 1 is a schematic diagram of a control method of a latent heat type air conditioner provided by an embodiment of the present application. The control method of the latent heat type air conditioner can be executed by a controller of the latent heat type air conditioner, or a control panel in communication connection with the air conditioner, or a server in a smart home system. The control method of the latent heat type air conditioner is exemplarily described by being applied to the latent heat type air conditioner shown in FIG. 1. Figure 1

[0053] In combination with FIG. 1, the control method of the latent heat type air conditioner comprises the following steps. Figure 2

[0054] S201, obtaining a first current temperature of a condenser surface and a second current temperature of a spraying unit.

[0055] The second current temperature of the spraying unit refers to the temperature of the fluid sprayed by the spraying unit. In the case that the spraying unit sprays the second fluid, the temperature of the second fluid in the second containing cavity of the temperature lowering device can be obtained by a temperature sensor arranged in the second containing cavity, and the temperature of the second fluid in the second containing cavity is determined as the second current temperature of the spraying unit. In the case that the spraying unit sprays the third fluid, the temperature of the third fluid in the third containing cavity of the temperature lowering device can be obtained by a temperature sensor arranged in the third containing cavity, and the temperature of the third fluid in the third containing cavity is determined as the second current temperature of the spraying unit.

[0056] ​​​S202, obtain a first temperature difference between the first current temperature and the second current temperature.

[0057] The first temperature difference between the first current temperature and the second current temperature can be obtained when the first current temperature is greater than the second current temperature.

[0058] Specifically, the first temperature difference can be determined as the difference between the first current temperature and the second current temperature.

[0059] When the first current temperature is less than or equal to the second current temperature, the subsequent steps can not be performed.

[0060] S203, determine the current spraying rate of the spraying unit according to the first temperature difference.

[0061] Here, the current spraying rate of the spraying unit includes the fluid flow and / or fluid speed of the spraying unit currently spraying.

[0062] The current spraying rate of the spraying unit corresponds to the third pumping rate of the third pumping unit. When the third pumping unit is a water pump, the third pumping rate can be represented by the rotating speed of the water pump.

[0063] In combination with the foregoing embodiments, the latent heat type air conditioner can include a compressor, a temperature raising device, and a latent heat treatment device. The temperature raising device is provided with a first containing cavity. The first containing cavity is provided with a heat exchanger and a first fluid. One end of the heat exchanger is in communication with the gas outlet of the compressor, and the other end is in communication with the condenser. The first fluid is used to raise the temperature of the latent heat treatment device, so that the latent heat treatment device performs a regeneration process.

[0064] On this basis, determining the current spraying rate of the spraying unit according to the first temperature difference can include: obtaining a first spraying rate positively related to the first temperature difference; obtaining a third current temperature of the first fluid; when the third current temperature does not satisfy a high temperature condition, obtaining a second spraying rate negatively related to the third current temperature; and determining the current spraying rate according to the rate difference between the first spraying rate and the second spraying rate.

[0065] The third current temperature of the first fluid does not satisfy the high temperature condition, and the first fluid can continue to be warmed up; the lower the third current temperature, the greater the second spraying rate, and the smaller the rate difference between the first spraying rate and the second spraying rate, so that the current spraying rate is smaller, so that the first current temperature of the surface of the condenser has a warming trend; since the refrigerant sprayed by the compressor first passes through the heat exchanger and then passes through the condenser, the first current temperature of the surface of the condenser is lower than the temperature of the heat exchanger, and the temperature of the heat exchanger does not satisfy the high temperature condition, so the first current temperature of the surface of the condenser will not be too high; in the case that the first current temperature of the surface of the condenser has a warming trend, the temperature of the heat exchanger also has a warming trend, which can be that the third current temperature of the first fluid has a warming trend, which is conducive to maintaining a higher upper limit temperature of the latent heat treatment device, and is conducive to improving the rate of removing indoor latent heat by the latent heat treatment device.

[0066] In addition, in the case that the third pumping unit corresponding to the spraying unit is in communication with the second containing cavity and the spraying unit respectively, the third pumping unit can pump the second fluid in the second containing cavity to the spraying unit, and the spraying unit uses the second fluid to cool the condenser. That is, the second fluid in the second containing cavity of the cooling device can be used to cool the condenser, and can also be used to cool the latent heat treatment device.

[0067] In this case, according to the rate difference between the first spraying rate and the second spraying rate, the current spraying rate is determined, which can reduce the spraying rate of the spraying unit, reduce the amount of second fluid for heat exchange with the condenser, and further reduce the heat absorbed by the second fluid on the surface of the condenser. This is conducive to maintaining a lower temperature of the second fluid in the second containing cavity of the cooling device, and is conducive to making the latent heat treatment device have a lower lower limit temperature, and further making the second fluid and the latent heat treatment device have a larger temperature difference during the process of cooling the latent heat treatment device. It is conducive to quickly cooling the latent heat treatment device and improves the rate of removing indoor latent heat by the latent heat treatment device.

[0068] The third current temperature does not satisfy the high temperature condition, which can include that the third current temperature is lower than or equal to the first preset temperature.

[0069] Or, in the case that the latent heat type air conditioner further comprises a cooling device, a second containing cavity is arranged in the cooling device, and a second fluid is arranged in the second containing cavity, and the second fluid is used to cool the latent heat treatment device, so that the latent heat treatment device performs a moisture absorption process; the third current temperature does not satisfy the high temperature condition, including: a second temperature difference between the third current temperature and a fourth current temperature of the second fluid is less than or equal to a second preset temperature. In this way, the third current temperature of the first fluid has a temperature rising trend, and the fourth current temperature of the second fluid has a temperature falling trend, which is beneficial to maintaining a higher upper limit temperature and a lower lower limit temperature of the latent heat treatment device. During the temperature rising or falling process of the latent heat treatment device, the latent heat treatment device has a higher temperature difference with the first fluid (temperature rising process) or the second fluid (temperature falling process), which is beneficial to improving the rate of removing indoor latent heat of the latent heat treatment device.

[0070] The current spraying rate can be determined according to the rate difference between the first spraying rate and the second spraying rate.

[0071] S204, controlling the spraying unit according to the current spraying rate.

[0072] The current spraying rate can correspond to the third pumping rate of the third pumping unit. After the current spraying rate is determined, the third pumping rate of the third pumping unit corresponding to the current spraying rate can be determined, and the third pumping unit can be controlled according to the third pumping rate, so that the spraying unit can be controlled.

[0073] The higher the first current temperature of the surface of the condenser, the greater the first temperature difference. In this way, the first temperature difference can reflect the height of the first current temperature of the surface of the condenser, and then the spraying unit can be controlled according to the first temperature difference to spray the surface of the condenser, so that the surface of the condenser is cooled, which is beneficial to reducing the temperature of the condenser, improving the condensation effect, and further improving the evaporation effect inside the indoor evaporator and the refrigeration efficiency of the air conditioner.

[0074] Figure 3 is a structural schematic diagram of a latent heat type air conditioner provided by an embodiment of the present application.

[0075] In combination with Figure 3 As shown in the figure, the latent heat type air conditioner further comprises a proportional valve 19. An inlet of the proportional valve 19 is in communication with an air outlet of the compressor 01. A first outlet of the proportional valve 19 is in communication with the heat exchanger 08. A second outlet of the proportional valve 19 is in communication with the condenser 02.

[0076] On the basis of the above structure, the process of determining the current spraying rate of the spraying unit can be as shown in Figure 4

[0077] ​S401, obtain a first spraying rate positively correlated with a first temperature difference.

[0078] S402, obtain a first refrigerant flow of the first outlet and a second refrigerant flow of the second outlet.

[0079] S403, determine a third spraying rate negatively correlated with the first refrigerant flow and positively correlated with the second refrigerant flow according to a corresponding relationship between the refrigerant flow and the spraying rate.

[0080] S404, determine a current spraying rate of the spraying unit according to a rate sum of the first spraying rate and the third spraying rate.

[0081] The greater the third spraying rate, the greater the current spraying rate, and the better the cooling effect of the spraying unit on the condenser; the third spraying rate is negatively correlated with the first refrigerant flow, that is, the less the refrigerant flow flowing to the heat exchanger, the worse the cooling effect of the spraying unit on the condenser, which is conducive to improving or maintaining the temperature of the heat exchanger, and further improving the rate of removing indoor latent heat of the latent heat treatment device; the third spraying rate is positively correlated with the second refrigerant flow, that is, the more the refrigerant flow flowing to the condenser, the better the cooling effect of the spraying unit on the condenser, which is conducive to following the rate of generating heat of the condenser, adaptively adjusting the cooling effect of the spraying unit on the condenser, so that the two reach a balance, which is conducive to maintaining a stable temperature of the heat exchanger, and further making the latent heat type air conditioner have a relatively stable refrigeration efficiency.

[0082] The rate sum of the first spraying rate and the third spraying rate can be determined as the current spraying rate of the spraying unit.

[0083] Figure 5 is a schematic diagram of a control device of a latent heat type air conditioner provided by an embodiment of the present application. The latent heat type air conditioner includes a condenser and a spraying unit, and the spraying unit is used for spraying the surface of the condenser to cool the condenser.

[0084] In combination Figure 5 As shown in the figure, the control device of the latent heat type air conditioner includes a first obtaining module 51, a second obtaining module 52, a determining module 53, and a control module 54. The first obtaining module 51 is configured to obtain a first current temperature of the surface of the condenser and a second current temperature of the spraying unit; the second obtaining module 52 is configured to obtain a first temperature difference between the first current temperature and the second current temperature; the determining module 53 is configured to determine a current spraying rate of the spraying unit according to the first temperature difference; and the control module 54 is configured to control the spraying unit according to the current spraying rate.

[0085] The latent heat type air conditioner can further include a compressor, a temperature raising device, and a latent heat treatment device, the temperature raising device is internally provided with a first accommodating cavity, the first accommodating cavity is internally provided with a heat exchanger and a first fluid, one end of the heat exchanger is in communication with a gas outlet of the compressor, and the other end is in communication with a condenser, the first fluid is used for raising the temperature of the latent heat treatment device, so that the latent heat treatment device performs a regeneration process. On the basis of this structure, the determination module 53 includes a first obtaining unit, a second obtaining unit, a third obtaining unit, and a first determination unit; the first obtaining unit is configured to obtain a first spraying rate positively related to a first temperature difference; the second obtaining unit is configured to obtain a third current temperature of the first fluid; the third obtaining unit is configured to, in a case where the third current temperature does not satisfy a high-temperature condition, obtain a second spraying rate negatively related to the third current temperature; and the first determination unit is configured to determine a current spraying rate according to a rate difference between the first spraying rate and the second spraying rate.

[0086] Optionally, the first determination unit is specifically configured to determine the rate difference between the first spraying rate and the second spraying rate as the current spraying rate.

[0087] Optionally, the third current temperature not satisfying the high-temperature condition includes that the third current temperature is lower than or equal to a first preset temperature.

[0088] The latent heat type air conditioner can further include a temperature lowering device, the temperature lowering device is internally provided with a second accommodating cavity, the second accommodating cavity is internally provided with a second fluid, and the second fluid is used for lowering the temperature of the latent heat treatment device, so that the latent heat treatment device performs a moisture absorption process.

[0089] On the basis of this structure, the third current temperature not satisfying the high-temperature condition can include that a second temperature difference between the third current temperature and a fourth current temperature of the second fluid is less than or equal to a second preset temperature.

[0090] The latent heat type air conditioner can further include a proportional valve, an inlet of the proportional valve is in communication with the gas outlet of the compressor, a first outlet of the proportional valve is in communication with the heat exchanger, and a second outlet of the proportional valve is in communication with the condenser.

[0091] On the basis of this structure, the determination module 53 includes a fourth obtaining unit, a fifth obtaining unit, a second determination unit, and a third determination unit; the fourth obtaining unit is configured to obtain a first spraying rate positively related to a first temperature difference; the fifth obtaining unit is configured to obtain a first refrigerant flow of the first outlet and a second refrigerant flow of the second outlet; the second determination unit is configured to determine, according to a corresponding relationship between the refrigerant flow and the spraying rate, a third spraying rate negatively related to the first refrigerant flow and positively related to the second refrigerant flow; and the third determination unit is configured to determine a current spraying rate of the spraying unit according to a rate sum of the first spraying rate and the third spraying rate.

[0092] Optionally, the second obtaining module 52 is specifically configured to obtain a first temperature difference between the first current temperature and the second current temperature in a case where the first current temperature is greater than the second current temperature.

[0093] In some embodiments, the control device of the latent heat type air conditioner comprises a processor and a memory storing program instructions, and the processor is configured to execute the control method of the latent heat type air conditioner provided in the foregoing embodiments when executing the program instructions.

[0094] In some embodiments, the control device of the latent heat type air conditioner comprises a processor and a memory storing program instructions, and the processor is configured to execute the control method of the latent heat type air conditioner provided in the foregoing embodiments when executing the program instructions.

[0095] Figure 6 is a schematic diagram of a control device of a latent heat type air conditioner provided in an embodiment of the present application. As shown in Figure 6 The control device of the latent heat type air conditioner comprises:

[0096] The processor 61 and the memory 62 can also include a communication interface 63 and a bus 64. The processor 61, the communication interface 63, and the memory 62 can communicate with each other through the bus 64. The communication interface 63 can be used for information transmission. The processor 61 can call the logical instructions in the memory 62 to execute the control method of the latent heat type air conditioner provided in the foregoing embodiments.

[0097] In addition, the logical instructions in the memory 62 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0098] The memory 62 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present application. The processor 61 executes the functions and data processing by running the software programs, instructions, and modules stored in the memory 62, that is, implements the methods in the method embodiments described above.

[0099] The memory 62 can include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 62 can include a high-speed random access memory, and can also include a non-volatile memory.

[0100] The present application provides a latent heat type air conditioner, which comprises:

[0101] A condenser;

[0102] A spraying unit is used to spray water to the condenser to cool the condenser.

[0103] The foregoing embodiment provides a control device of the latent heat type air conditioner.

[0104] The embodiment of the present application provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the control method of the latent heat type air conditioner provided by the foregoing embodiment.

[0105] The embodiment of the present application provides a computer program product, which comprises a computer program stored on a computer readable storage medium, and the computer program comprises program instructions, and when the program instructions are executed by a computer, the computer executes the control method of the latent heat type air conditioner provided by the foregoing embodiment.

[0106] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0107] The technical solution of the embodiment of the present application can be embodied in the form of a software product, the computer software product is stored in a storage medium, and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method in the embodiment of the present application. The foregoing storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, and can also be a transitory storage medium.

[0108] The above description and drawings are illustrative of embodiments of the application and are not to be construed as limiting the application. Other embodiments can include structural, logical, electrical, process, and other changes. The embodiments are merely examples of the many possible embodiments of the application. Unless explicitly stated otherwise, individual components and functions are optional and the order of operations can vary. Parts and features of some embodiments can be included or replaced with parts and features of other embodiments. Also, the word "comprising" and variations thereof, as used in the claims, mean "including but not limited to" and are not intended to exclude other moieties, constituents, steps, or elements. The term "consisting of" is intended to mean "including and limited to" such that the scope of embodiments only encompasses the elements recited. The term "consisting essentially of" is intended to mean "including at least the recited elements, and any additional elements that do not materially change the basic and novel characteristics of the claimed application." Other embodiments can be understood and effected by those skilled in the art in practicing the claims.

[0109] Those skilled in the art can understand that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of the present application. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, devices and units can refer to the corresponding processes in the foregoing method embodiments, which will not be described here.

[0110] The disclosed method, product (including but not limited to device, equipment, etc.) in the embodiments disclosed in the present document can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units can be merely a logical function division. In actual implementation, another division manner can be used. For example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the embodiments. In addition, the functional units in the embodiments of the present application can be integrated in one processing unit, or each unit can be a physical unit, or two or more units can be integrated in one unit.

[0111] The flowcharts and block diagrams in the drawings show the possible implementation architecture, function and operation of the system, method and computer program product according to the embodiments of the present application. In this regard, each block in the flowchart or block diagram can represent a module, program segment or part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in different orders than those noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes in reverse order, depending on the functions involved. Each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

Claims

1. A control method for a latent heat type air conditioner, characterized in that, A latent heat type air conditioner includes a condenser and a spray unit. The spray unit sprays water onto the surface of the condenser to cool it down. It also includes a compressor, a heating device, a cooling device, and a latent heat treatment device. The heating device has a first receiving cavity containing a heat exchanger and a first fluid. One end of the heat exchanger is connected to the outlet of the compressor, and the other end is connected to the condenser. The first fluid is used to heat the latent heat treatment device, enabling it to perform a regeneration process. The cooling device has a second receiving cavity containing a second fluid, which cools the latent heat treatment device, enabling it to perform a moisture absorption process. The control method includes: Obtain a first current temperature of the condenser surface and a second current temperature of the spray unit; Obtain the first temperature difference between the first current temperature and the second current temperature; The current spray rate of the spray unit is determined based on the first temperature difference; The spray unit is controlled according to the current spray rate; Determining the current spray rate of the spray unit based on the first temperature difference includes: Obtain a first spray rate that is positively correlated with the first temperature difference; Obtain the third current temperature of the first fluid; If the third current temperature does not meet the high temperature condition, a second spray rate that is negatively correlated with the third current temperature is obtained. The current spray rate is determined based on the rate difference between the first spray rate and the second spray rate; Wherein, the third current temperature does not meet the high temperature condition, including: the second temperature difference between the third current temperature and the fourth current temperature of the second fluid is less than or equal to the second preset temperature.

2. The control method according to claim 1, characterized in that, Determining the current spray rate based on the rate difference between the first spray rate and the second spray rate includes: The rate difference between the first spray rate and the second spray rate is determined as the current spray rate.

3. The control method according to claim 1, characterized in that, The latent heat type air conditioner further includes a proportional valve, the inlet of which is connected to the outlet of the compressor, the first outlet of which is connected to the heat exchanger, and the second outlet of which is connected to the condenser; determining the current spray rate of the spray unit based on the first temperature difference includes: Obtain a first spray rate that is positively correlated with the first temperature difference; Obtain the first refrigerant flow rate at the first outlet and the second refrigerant flow rate at the second outlet; Based on the relationship between refrigerant flow rate and spray rate, a third spray rate is determined that is negatively correlated with the first refrigerant flow rate and positively correlated with the second refrigerant flow rate. The current spray rate of the spray unit is determined based on the sum of the first spray rate and the third spray rate.

4. The method according to any one of claims 1 to 3, characterized in that, The step of obtaining the first temperature difference between the first current temperature and the second current temperature includes: If the first current temperature is greater than the second current temperature, a first temperature difference between the first current temperature and the second current temperature is obtained.

5. A control device for a latent heat type air conditioner, characterized in that, A latent heat type air conditioner includes a condenser and a spray unit. The spray unit sprays water onto the surface of the condenser to cool it down. It also includes a compressor, a heating device, a cooling device, and a latent heat treatment device. The heating device has a first receiving cavity containing a heat exchanger and a first fluid. One end of the heat exchanger is connected to the outlet of the compressor, and the other end is connected to the condenser. The first fluid is used to heat the latent heat treatment device, enabling it to perform a regeneration process. The cooling device has a second receiving cavity containing a second fluid, which cools the latent heat treatment device, enabling it to perform a moisture absorption process. The control device includes: The first obtaining module is configured to obtain a first current temperature of the condenser surface and a second current temperature of the spray unit; The second obtaining module is configured to obtain a first temperature difference between the first current temperature and the second current temperature; The determining module is configured to determine the current spray rate of the spray unit based on the first temperature difference; The control module is configured to control the spray unit according to the current spray rate; Determining the current spray rate of the spray unit based on the first temperature difference includes: Obtain a first spray rate that is positively correlated with the first temperature difference; obtain a third current temperature of the first fluid; if the third current temperature does not meet the high temperature condition, obtain a second spray rate that is negatively correlated with the third current temperature; determine the current spray rate based on the rate difference between the first spray rate and the second spray rate; Wherein, the third current temperature does not meet the high temperature condition, including: the second temperature difference between the third current temperature and the fourth current temperature of the second fluid is less than or equal to the second preset temperature.

6. A control device for a latent heat type air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the control method for a latent heat type air conditioner as described in any one of claims 1 to 4 when executing the program instructions.

7. A latent heat type air conditioner, characterized in that, include: Condenser; A spray unit is used to spray water onto the condenser to cool it down. The control device for a latent heat type air conditioner as described in claim 5 or 6.

Images