Hybrid cooling system and cooling method

Abstract

The application provides a hybrid cooling system and a cooling method, which comprise a refrigerant circulation system and an air cooling circulation system; the refrigerant circulation system comprises a condenser, a compressor, an evaporator and an expansion valve, the condenser, the expansion valve, the evaporator and the compressor are sequentially connected in a closed loop through pipelines, the condenser is provided with a condensing fan, and the evaporator is provided with a cooling fan; the air cooling circulation system comprises an air exchange window and the evaporator and the cooling fan, and the cooling fan is used for air exchange in cooperation with the air exchange window. The application sets the air cooling circulation system, which utilizes the temperature difference between the outside and the equipment to be cooled to perform heat exchange under the action of the air cooling system; meanwhile, the refrigerant circulation system is set, the compressor is used to work to dissipate heat of the equipment to be cooled, and the two systems can independently operate and jointly operate; in addition, according to the real-time detected temperature, the cooperation mode of the two systems is accurately controlled, so that the energy consumption and the noise are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigeration technology, in particular to a hybrid cooling system and a cooling method. BACKGROUND

[0002] With the popularization and application of new energy such as solar energy and wind energy, energy storage technology has also developed, and among them, lithium batteries gradually become the mainstream product of energy storage because of their high energy, long service life, high rated voltage, high power bearing capacity, low self-discharge rate, light weight, green environmental protection, and basically no water consumption in production.

[0003] At present, the application of lithium battery technology in commercial and industrial energy storage systems and light storage charging and detection systems is more common, but since the application scenarios are mostly in urban areas or industrial areas, the noise of the system during operation needs to be controlled, and the energy consumption is also reduced. In addition, in the commercial and industrial energy storage systems and light storage charging and detection systems, there are also electrical equipment such as PCS, DCDC, and photovoltaic controllers used with lithium batteries, and the overall heat dissipation is large.

[0004] In the prior art, the lithium battery container system uses an ordinary air conditioning system for cooling, but the power consumption is large during operation, and the noise is difficult to control, and the system operation cost is high, while the general air cooling technology has small noise and low energy consumption, but it is difficult to achieve effective cooling effect. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a hybrid cooling system and a cooling method, which formulates a corresponding cooperation strategy according to the real-time detected environmental temperature and equipment temperature by the cooperation of the refrigerant circulation system and the air cooling circulation system, reduces the energy consumption and reduces the noise.

[0006] In order to solve the above technical problems, the technical scheme adopted by the present application is:

[0007] A hybrid cooling system, comprising a refrigerant circulation system and an air cooling circulation system;

[0008] The refrigerant circulation system comprises a condenser, a compressor, an evaporator and an expansion valve, the condenser, the expansion valve, the evaporator and the compressor are sequentially connected in a closed loop through pipelines, the condenser is provided with a condensing fan, and the evaporator is provided with a cooling fan.

[0009] The air cooling circulation system comprises an air exchange window, the evaporator and the cooling fan, and the cooling fan cooperates with the air exchange window to exchange air.

[0010] In order to solve the above technical problems, another technical scheme provided by the present application is:

[0011] A cooling method applied to the hybrid cooling system, comprising the steps of:

[0012] S1, acquiring an ambient temperature of an external environment and a device temperature of a device to be cooled;

[0013] S2, calculating a cooling rate according to the real-time acquired device temperature;

[0014] S3, when detecting that the cooling rate is less than a preset cooling rate, increasing the operating power of the compressor.

[0015] The present application has the beneficial effects that the present application provides a hybrid cooling system and a cooling method, a wind cooling circulation system is arranged, which utilizes the temperature difference between the external environment and the device to be cooled to perform heat exchange under the action of the wind cooling system; at the same time, a refrigerant circulation system is arranged, which utilizes the work of the compressor to dissipate heat for the device to be cooled, and the two systems can independently operate and jointly operate; in addition, according to the real-time detected temperature, the cooperation mode of the two systems is accurately controlled, which can reduce energy consumption and achieve the effect of reducing noise. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a hybrid cooling system principle diagram of the embodiment of the present application;

[0017] Figure 2 is a flow chart of the cooling method of the embodiment of the present application;

[0018] Figure 3 is a specific flow chart of the cooling method provided in the fifth embodiment of the present application;

[0019] REFERENCE NUMERALS:

[0020] 1, compressor; 2, condenser; 3, condensing fan; 4, expansion valve;

[0021] 5, air exchange window; 6, dustproof device; 7, cooling fan; 8, evaporator;

[0022] 9, device to be cooled; 10, ambient temperature sensor; 11, device temperature sensor. DETAILED DESCRIPTION

[0023] To explain the technical content, the achieved purposes and effects of the present application in detail, the following will be explained in combination with the embodiments and the accompanying drawings.

[0024] Please refer to Figure 1 A hybrid cooling system, characterized in that it comprises a refrigerant circulation system and a wind cooling circulation system;

[0025] The refrigerant circulation system comprises a compressor 1, a condenser 2, an evaporator 8 and an expansion valve 4, the condenser 2, the expansion valve 4, the evaporator 8 and the compressor 1 are sequentially connected in a closed loop through pipes, the condenser 2 is provided with a condensing fan 3, and the evaporator 8 is provided with a cooling fan 7;

[0026] The air-cooled circulation system comprises the air exchange window 5, the evaporator 8 and the cooling fan 7, and the cooling fan 7 cooperates with the air exchange window 5 to perform air exchange.

[0027] The working principle of the application is that: firstly, the condenser 2, the compressor 1, the evaporator 8 and the expansion valve 4 are sequentially connected in a closed loop to form a refrigerant circulation, that is, a general refrigeration cycle, and in the working process, the condenser 2 cools the refrigerant through the condensing fan 3, and the evaporator 8 realizes air cooling of the cooling equipment 9 through the cooling fan 7; secondly, the air exchange window 5, the evaporator 8 and the cooling fan 7 form an air-cooled circulation system, and in the working process, when the cooling system detects that the temperature difference between the equipment temperature and the external temperature is higher than the preset value, the air exchange window 5 is opened, and under the action of the cooling fan 7, the external air and the internal hot air are used for heat exchange; finally, according to the system control, the two systems can run in parallel or can run alone to cool the cooling equipment 9.

[0028] Further, the air-cooled circulation system further comprises a dustproof device 6 arranged on the inner side of the air exchange window 5.

[0029] Further, the dustproof device 6 is a filter cotton dust screen.

[0030] As known from the above description, in order to prevent the external air from bringing in dust or small particles and damaging the related facilities of the cooling system, the dustproof device 6 is arranged on the inner side of the air exchange window 5, and specifically, the dustproof device 6 can be a filter cotton dust screen.

[0031] Further, the air exchange window 5 is an electric louver door.

[0032] As known from the above description, in order to enhance the control performance of the air exchange window 5, the electric louver window is specially selected to cooperate with the air-cooled system for heat exchange.

[0033] Further, in order to facilitate the system to monitor the external environment temperature and the temperature of the cooling equipment in real time, the system further comprises an environment temperature sensor 10 and an equipment temperature sensor 11, the environment temperature sensor 10 is used for detecting the environment temperature of the external environment, and the equipment temperature sensor 11 is used for detecting the equipment temperature of the cooling equipment 9.

[0034] In order to solve the above technical problems, another technical scheme provided by the application is:

[0035] In combination with Figures 2-3The application discloses a cooling method applied to the mixed cooling system.

[0036] S1, acquiring an environment temperature of an external environment and a device temperature of a device to be cooled;

[0037] S2, calculating a cooling rate according to the real-time acquired device temperature;

[0038] S3, when detecting that the cooling rate is less than a preset cooling rate, improving the operation power of the compressor.

[0039] According to the above description, the application has the beneficial effects that based on the same technical concept, the mixed cooling system is used to provide the cooling method, in order to save electric energy and reduce the noise generated by the operation of the compressor, the compressor in the refrigerant circulation system is controlled to operate according to a certain power, and the cooling work is simultaneously performed with the air cooling circulation system, but in order to prevent the phenomenon that the device is overheated and the cooling is not timely, the cooling rate of the device to be cooled is monitored in real time, if the cooling rate is less than the preset cooling rate, the rotating speed of the compressor is controlled to be improved, so as to enhance the cooling effect of the refrigerant circulation system.

[0040] Further, the S3 is specifically as follows:

[0041] S31, when detecting that the difference between the device temperature and the environment temperature is lower than a first preset temperature, the compressor is adjusted to operate according to a first preset power;

[0042] S32, when detecting that the difference between the device temperature and the environment temperature is lower than an n-th preset temperature, the compressor is adjusted to operate according to an n-th preset power; an (n-1)-th preset temperature is greater than the n-th preset temperature, an (n-1)-th preset power is less than the n-th preset power, the n-th preset power is the maximum output power of the compressor, and the n is a positive integer greater than or equal to 2;

[0043] S33, in any step of S31-S32, if the cooling rate of the device temperature is detected to be less than a preset cooling rate, the current m-th preset power of the compressor is improved to an m+1-th preset power, and the m is a positive integer greater than or equal to 1 and less than n.

[0044] From the above description, in steps S31 and S32, the system pre-sets the first pre-set temperature, the second pre-set temperature, the (n-1)th pre-set temperature, and the nth pre-set temperature, and the first pre-set power, the second pre-set power, the (n-1)th pre-set power, and the nth pre-set power, wherein the nth pre-set power is the maximum output power of the compressor, i.e., when the compressor reaches the nth pre-set power, the refrigerant circulation system is running at full power; and the pre-sets satisfy: the (n-1)th pre-set temperature is greater than the nth pre-set temperature, the (n-1)th pre-set power is less than the nth pre-set power, and n is a positive integer greater than or equal to 2.

[0045] After the pre-sets are completed in the system, when the difference between the sensed equipment temperature and the ambient temperature is lower than the first pre-set temperature, the system adjusts the compressor to run at the first pre-set power; when the difference between the sensed equipment temperature and the ambient temperature is lower than the second pre-set temperature, the system adjusts the compressor to run at the second pre-set power; and when the difference between the sensed equipment temperature and the ambient temperature is lower than the nth pre-set temperature, the system adjusts the compressor to run at the nth pre-set power, i.e., each pre-set temperature has a corresponding pre-set power, and when the temperature is lower than the pre-set temperature, the compressor runs at the pre-set power corresponding to the lower pre-set temperature.

[0046] For example, the first pre-set temperature ranges from 14 to 16℃, the second pre-set temperature ranges from 9 to 12℃, the (n-1)th pre-set temperature ranges from 5 to 8℃, the nth pre-set temperature ranges from 1 to 4℃, the first pre-set power ranges from 30% to 50% of the maximum running power, the second pre-set power ranges from 50% to 70% of the maximum running power, the (n-1)th pre-set power ranges from 70% to 90% of the maximum running power, and the nth pre-set power is the maximum running power of the compressor.

[0047] Preferably, n is 4, the first pre-set temperature ranges from 14 to 16℃, the second pre-set temperature ranges from 9 to 12℃, the third pre-set temperature ranges from 5 to 8℃, the fourth pre-set temperature ranges from 1 to 4℃, the first pre-set power ranges from 30% to 50% of the maximum running power of the compressor, the second pre-set power ranges from 50% to 70% of the maximum running power of the compressor, the third pre-set power ranges from 70% to 90% of the maximum running power of the compressor, and the fourth pre-set power is the maximum running power of the compressor.

[0048] More preferably, n is 4, the first pre-set temperature is 15℃, the second pre-set temperature is 10℃, the third pre-set temperature is 6℃, the fourth pre-set temperature is 3℃, the first pre-set power is 40% of the maximum running power of the compressor, the second pre-set power is 60% of the maximum running power of the compressor, the third pre-set power is 80% of the maximum running power of the compressor, and the fourth pre-set power is the maximum running power of the compressor.

[0049] Meanwhile, if it is detected that the temperature decreasing rate of the device is less than the preset temperature decreasing rate in any one of steps S31-S32, the current mth preset power of the compressor is increased to the (m+1)th preset power, where m is a positive integer greater than or equal to 1 and less than n. That is, there is a preset temperature decreasing rate in the system. When it is detected that the temperature decreasing rate of the device is less than the preset temperature decreasing rate, it indicates that the current cooling effect is insufficient. To prevent the device from overheating, the output power of the compressor is increased to the preset power of the next gear. For example, when the environment of the system is 10℃ lower than the second preset temperature in the above example, the operating power of the compressor is the second preset power, i.e., 60% of the maximum operating power. When it is detected that the temperature decreasing rate is less than the preset temperature decreasing rate, the operating power of the compressor is controlled to the third preset power, i.e., 80% of the maximum operating power. If the temperature decreasing effect is still not satisfied within a specified time, the operating power of the compressor is continuously increased until the compressor outputs the maximum power. Preferably, the preset temperature decreasing rate ranges from 0.2 to 0.5℃ / min. More preferably, the preset temperature decreasing rate is 0.3℃ / min.

[0050] Further, S33 specifically includes:

[0051] S331, if it is detected that the temperature decreasing rate of the device is less than the preset temperature decreasing rate within the first preset time, the current mth preset power is increased to the (m+1)th preset power, where m is a positive integer greater than or equal to 1 and less than n.

[0052] S332, if it is detected that the temperature decreasing rate of the device is less than the preset temperature decreasing rate within the first preset time and the operating power of the compressor is the nth preset power, the alarm is controlled to issue an alarm.

[0053] As described above, to prevent the system power from being adjusted too frequently and damaging the device, the first preset time is added to the system. When the actual temperature decreasing rate is continuously less than the preset temperature decreasing rate within the first preset time, the operating power of the compressor is increased. Meanwhile, the early warning system is added to the system, which is mainly used to prevent the device from overheating and the cooling system from failing to decrease the temperature. Specifically, when the actual temperature decreasing rate is continuously less than the preset temperature decreasing rate within the first preset time and the operating power of the compressor has reached the nth preset power, i.e., the maximum output power, it indicates that the entire cooling system has failed to cool the device. The alarm issues a warning to remind the relevant staff to handle it. Preferably, the first preset time ranges from 2 to 4min. More preferably, the first preset time is 3min.

[0054] Further, the method further comprises a step S4, which is subsequent to the step S3, and specifically comprises:

[0055] S4, when detecting that the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, controlling the air exchange window to be closed and controlling the compressor to operate at the nth preset power.

[0056] Further, the method further comprises a step S0, which is prior to the step S1, and specifically comprises:

[0057] S0, when detecting that the difference between the equipment temperature and the ambient temperature is greater than or equal to the first preset temperature, controlling the compressor to be closed and controlling the air exchange window to be opened.

[0058] As can be seen from the above description, according to the step S4, when detecting that the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, the air exchange window is closed and the compressor operates at the maximum output power, at this time, the air cooling circulation system is closed and the refrigerant circulation system operates alone, and the purpose is that when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, at this time, the ambient temperature is close to the equipment temperature, and the cooling effect obtained from the external environment is limited, and even cannot play a cooling effect, so the air exchange window is closed and the refrigerant circulation system operates alone.

[0059] At the same time, according to the step S0, when detecting that the difference between the equipment temperature and the ambient temperature is greater than or equal to the first preset temperature, the compressor is controlled to be closed and the air exchange window is controlled to be opened. At this time, the refrigerant circulation system is closed and the air cooling circulation system operates alone, and the purpose is that when the difference between the equipment temperature and the ambient temperature is greater than or equal to the first preset temperature, at this time, the difference between the equipment temperature and the ambient temperature is large, that is, the temperature difference is large, and the cooling effect required can be achieved only by heat exchange from the external environment, so the compressor is closed and the air cooling circulation system operates alone.

[0060] Embodiment one of the present application is:

[0061] Please refer to Figure 1The utility model relates to a kind of hybrid cooling system, it is characterized by including refrigerant circulation system and air cooling circulation system;Refrigerant circulation includes condenser, compressor, evaporator and expansion valve, condenser, expansion valve, evaporator and the compressor are sequentially closed loop connected by pipeline, the condenser is equipped with condensing fan, and the evaporator is equipped with cooling fan;Air cooling circulation system includes electric louver and evaporator and cooling fan, cooling fan and electric louver cooperate to ventilate;Air cooling circulation system further includes dustproof device, and the dustproof device is located in the inside of the ventilation window, specifically, dustproof device selects filter cotton dust screen.Cooling system further includes ambient temperature sensor and equipment cabin temperature sensor, ambient temperature sensor is used to detect the ambient temperature of external environment, and equipment cabin temperature sensor is used to detect the equipment temperature of the equipment to be cooled, and the equipment to be cooled is electric equipment.

[0062] The working principle of the embodiment is that: first, condenser, compressor, evaporator and expansion valve are sequentially closed loop connected to form refrigerant circulation, i.e., general refrigeration cycle, and in the working process, the condenser is cooled by the condensing fan, and the evaporator is air-cooled to the equipment to be cooled by the cooling fan;Second, electric louver, evaporator and cooling fan form air cooling circulation, and in the working process, when the cooling system detects that the difference between the equipment temperature and the external temperature is higher than the preset value, the electric louver is opened, and under the action of the cooling fan, the external air and the internal hot air are used for heat exchange;Finally, according to system control, the two systems can run in parallel or run alone to cool the equipment to be cooled.

[0063] Embodiment two of the utility model is:

[0064] Please refer to Figure 2 A cooling method applied to the hybrid cooling system of the above embodiment one, characterized in that, comprising steps of:

[0065] S1, obtaining the ambient temperature of external environment and the equipment temperature of the equipment to be cooled;

[0066] S2, calculating the cooling rate according to the real-time obtained equipment temperature;

[0067] S3, when detecting that the cooling rate is less than the preset cooling rate, the rotating speed of the compressor is improved.

[0068] That is, in the embodiment, based on the same technical concept, a cooling method is provided by using the hybrid cooling system, aiming at saving electric energy and reducing noise generated by the compressor operation, the main concept of which is that the compressor in the refrigerant circulation system is controlled to operate at a certain power, and performs cooling work at the same time with the air cooling circulation system, but in order to prevent the equipment from overheating and the phenomenon of insufficient cooling, the cooling rate of the equipment to be cooled is monitored in real time, if the cooling rate is less than the preset cooling rate, the compressor is controlled to increase the rotating speed, so as to enhance the cooling effect of the refrigerant circulation system.

[0069] Embodiment three of the present application is:

[0070] Please refer to Figure 3 On the basis of embodiment two, S3 is specifically:

[0071] S31, when the difference between the equipment temperature and the environment temperature is lower than the first preset temperature, the compressor is adjusted to operate at the first preset power;

[0072] S32, when the difference between the equipment temperature and the environment temperature is lower than the nth preset temperature, the compressor is adjusted to operate at the nth preset power; the (n-1)th preset temperature is greater than the nth preset temperature, the (n-1)th preset power is less than the nth preset power, the nth preset power is the maximum output power of the compressor, and n is a positive integer greater than or equal to 2;

[0073] S33, in any step of S31-S32, if the cooling rate of the equipment temperature is less than the preset cooling rate, the current mth preset power of the compressor is increased to the (m+1)th preset power, and m is a positive integer greater than or equal to 1 and less than n.

[0074] In the embodiment, preset first preset temperature, second preset temperature, …, n-1 preset temperature and n preset temperature and first preset power, second preset power, …, n-1 preset power and n preset power are preset in the system, wherein the n preset power is the maximum output power of the compressor, that is, when the compressor reaches the n preset power, the refrigerant circulation system is full-power running; meanwhile, the following conditions are met: the n-1 preset temperature is greater than the n preset temperature, the n-1 preset power is less than the n preset power, and n is a positive integer greater than or equal to 2. After the preset is completed in the system, when the difference between the sensed equipment temperature and the ambient temperature is lower than the first preset temperature, the system adjusts the compressor to run according to the first preset power; when the sensed difference between the equipment temperature and the ambient temperature is lower than the second preset temperature, the system adjusts the compressor to run according to the second preset power; when the sensed difference between the equipment temperature and the ambient temperature is lower than the n preset temperature, the system adjusts the compressor to run according to the n preset power, that is, each preset temperature has a corresponding preset power, and when the preset temperature is lower than the preset temperature, the compressor runs according to the preset power corresponding to the lower preset temperature.

[0075] Preferably, n is 4, the first preset temperature is 15℃, the second preset temperature ranges from 10℃, the third preset temperature ranges from 6℃, the fourth preset temperature ranges from 3℃, the corresponding first preset power is 40% of the maximum running power of the compressor, the second preset power is 60% of the maximum running power of the compressor, the third preset power is 80% of the maximum running power of the compressor, and the fourth preset power is the maximum running power of the compressor.

[0076] Meanwhile, in any one of steps S31-S32, if the detected cooling rate of the equipment is lower than the preset cooling rate, the current m preset power of the compressor is increased to the m+1 preset power, wherein m is a positive integer greater than or equal to 1 and less than n. That is, the preset cooling rate is preset in the system, and when the detected cooling rate of the equipment is lower than the preset cooling rate, it indicates that the current cooling effect is insufficient, so as to prevent the equipment from overheating, the output power of the compressor is controlled to increase to the preset power of the next gear, for example, when the system is in an environment lower than the second preset temperature in the above example by 10℃, the running power of the compressor is the second preset power, that is, 60% of the maximum running power, and when the detected cooling rate is lower than the preset cooling rate, the running power of the compressor is controlled to the third preset power, that is, 80% of the maximum running power, and if the cooling effect still does not meet the requirement within a specified time, the running power of the compressor is continuously increased until the compressor is full-power output. Preferably, the preset cooling rate is 0.3℃ / min.

[0077] Embodiment four of the application is:

[0078] Please refer toFigure 3 On the basis of embodiment three, S33 is specifically:

[0079] S331, in any one of steps S31-S32, if it is detected that the cooling rate of the equipment temperature is less than the preset cooling rate for the first preset time, the current m preset power is increased to the m+1 preset power, m is a positive integer greater than or equal to 1 and less than 4;

[0080] S332, if it is detected that the cooling rate of the equipment temperature is less than the preset cooling rate for the first preset time and the compressor operating power is the fourth preset power, the alarm is controlled to issue an alarm.

[0081] That is, in the present embodiment, in order to prevent the system power from being adjusted too frequently and damaging the equipment, a first preset time is added to the system, and the first preset time is taken as 3 min. When the actual cooling rate is continuously lower than the preset cooling rate within 3 min, the operating power of the compressor is increased. At the same time, a warning system is added to the system, mainly to prevent the situation that the cooling system cannot cool down when the equipment is overheated, and specifically, when the actual cooling rate is continuously lower than the preset cooling rate within 3 min and the compressor has reached the fourth preset power, i.e. the maximum output power, it indicates that the cooling of the equipment cannot be completed by the entire cooling system at this time, and the alarm issues a warning to remind the relevant staff to handle it.

[0082] Embodiment five of the present application is:

[0083] Please refer to Figure 3 On the basis of embodiment four, steps S0 and S4 are further included, step S0 is located before step S1, and step S4 is located after step S3.

[0084] Step S0 is specifically: when it is detected that the difference between the equipment temperature and the environment temperature is greater than or equal to the first preset temperature, the compressor is controlled to be closed and the ventilation window is controlled to be opened.

[0085] Step S4 is specifically: when it is detected that the difference between the equipment temperature and the environment temperature is less than or equal to the fourth preset temperature, the ventilation window is controlled to be closed and the compressor is controlled to operate according to the fourth preset power.

[0086] That is, in the present embodiment, according to step S0, when it is detected that the difference between the equipment temperature and the environment temperature is greater than or equal to the first preset temperature, the compressor is controlled to be closed and the ventilation window is controlled to be opened. At this time, the refrigerant circulation system is closed and the air cooling circulation system operates alone, and the purpose is that when the difference between the equipment temperature and the environment temperature is greater than or equal to the first preset temperature, the difference between the equipment temperature and the environment temperature is large, i.e. the temperature difference is large, and only heat exchange from the external environment can achieve the required cooling effect, so the compressor is closed and the air cooling circulation system operates alone.

[0087] At the same time, according to the description in step S4, when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, the air exchange window is closed and the compressor operates at the maximum output power, at this time, the air cooling circulation system is closed and the refrigerant circulation system operates alone, and the purpose is that when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, at this time, the ambient temperature and the equipment temperature are relatively close, the cooling effect obtained from the external environment is limited, and even cannot play a cooling effect, so the air exchange window is closed and the refrigerant circulation system operates alone.

[0088] In summary, the application provides a hybrid cooling system and a cooling method, an air cooling circulation system is arranged, which utilizes the temperature difference between the external environment and the equipment to be cooled to perform heat exchange under the action of the air cooling system; at the same time, a refrigerant circulation system is arranged, which utilizes the work of the compressor to dissipate heat to the equipment to be cooled, and the two systems can operate independently and jointly; in addition, according to the real-time detected temperature, the cooperation mode of the two systems is accurately controlled, which can reduce energy consumption and noise.

[0089] The above is only an embodiment of the application, and does not limit the patent range of the application, and any equivalent transformation or direct or indirect application in the related technical field by using the content of the specification and drawings of the application is also included in the patent protection range of the application.

Claims

1. A cooling method applied to a hybrid cooling system, characterized in that, The hybrid cooling system includes a refrigerant circulation system and an air-cooled circulation system. The refrigerant circulation system includes a condenser, a compressor, an evaporator, and an expansion valve. The condenser, expansion valve, evaporator, and compressor are sequentially connected in a closed loop via pipelines. A condensing fan is installed on the condenser, and a cooling fan is installed on the evaporator. The condenser cools the refrigerant using the condensing fan, and the evaporator achieves air cooling of the equipment to be cooled using the cooling fan. The air-cooled circulation system includes a ventilation window, the evaporator, and the cooling fan. The cooling fan works in conjunction with the ventilation window for ventilation. The system also includes an ambient temperature sensor and an equipment temperature sensor. The ambient temperature sensor detects the ambient temperature, and the equipment temperature sensor detects the temperature of the equipment to be cooled. The cooling method includes the following steps: S1. Obtain the ambient temperature of the external environment and the equipment temperature of the equipment to be cooled; S2. Calculate the cooling rate based on the real-time acquired device temperature; S3. When the cooling rate is detected to be less than the preset cooling rate, increase the operating power of the compressor; Specifically, S3 is: S31. When the difference between the temperature of the device and the ambient temperature is detected to be lower than the first preset temperature, the compressor is adjusted to operate at the first preset power. S32. When the difference between the temperature of the device and the ambient temperature is detected to be lower than the nth preset temperature, the compressor is adjusted to operate at the nth preset power; the (n-1)th preset temperature is greater than the nth preset temperature, the (n-1)th preset power is less than the nth preset power, the nth preset power is the maximum output power of the compressor, and n is a positive integer greater than or equal to 2; S33. In any step of S31-S32, if the temperature drop rate of the device is detected to be less than the preset temperature drop rate, the current preset power of the compressor is increased to the (m+1)th preset power, where m is a positive integer greater than or equal to 1 and less than n.

2. The cooling method according to claim 1, characterized in that: The air-cooled circulation system also includes a dustproof device, which is located inside the ventilation window.

3. The cooling method according to claim 2, characterized in that: The dustproof device is a filter cotton dustproof net.

4. The cooling method according to claim 1, characterized in that: The ventilation window is an electric louvered door.

5. A cooling method according to claim 1, characterized in that, Specifically, S33 is: S331. In any step of S31-S32, if it is detected that the cooling rate of the device temperature is continuously less than the preset cooling rate within a first preset time period, the current m-th preset power is increased to the (m+1)-th preset power, where m is a positive integer greater than or equal to 1 and less than n. S332. If it is detected that the cooling rate of the equipment temperature is continuously less than the preset cooling rate within a first preset time period and the operating power of the compressor is the nth preset power, then control the alarm to issue an alarm.

6. A cooling method according to claim 5, characterized in that, It also includes step S4, which follows step S3, and step S4 specifically involves: S4. When the difference between the device temperature and the ambient temperature is less than or equal to the nth preset temperature, control the ventilation window to close and control the compressor to operate at the nth preset power.

7. A cooling method according to claim 1, characterized in that, It also includes step S0, which precedes step S1, and step S0 specifically includes: S0. When the difference between the temperature of the device and the ambient temperature is detected to be greater than or equal to a first preset temperature, the compressor is controlled to shut down and the ventilation window is controlled to open.

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