Refrigerating system and method of data center

Abstract

The invention discloses a refrigerating system and method of a data center. The system comprises heat exchange equipment, a cold channel, a hot channel, an air supply port and an air return port, the cold channel is located in front of a cabinet of the data center, and the hot channel is located behind the cabinet of the data center; the air supply port is connected with the cold channel, and the air return port is connected with the hot channel; the heat exchange equipment is used for obtaining outdoor fresh air of the data center, and carrying out heat exchange treatment on the outdoor fresh air and indoor hot air in the hot channel obtained through the air return opening to obtain refrigeration air and air to be subjected to heat removal; and the heat exchange equipment is also used for conveying the refrigeration air to the cold channel through the air supply outlet and discharging the air to be subjected to heat removal to the outside of the data center. According to the technical scheme, the problem of high energy consumption of a refrigerating system of a data center in the field of oil exploration is solved, the energy consumption of the refrigerating system can be reduced, the carbon emission is reduced, and energy conservation and emission reduction are realized.

Description

Technical Field

[0001] The present invention relates to the field of energy control technology, and in particular to a refrigeration system and method for a data center. Background Art

[0002] Data centers in the field of oil exploration require a large number of computers and servers to process and store massive amounts of geological exploration data. Data centers usually include GPU clusters, CPU clusters, high-performance storage clusters, and IP and IB dual-core networks. Different types of equipment have huge differences in workload and energy consumption. Geological exploration data usually requires complex processing and analysis, which places high demands on computing power and storage capacity, increases energy consumption, and generates a lot of heat, so a cooling system is needed to maintain a suitable operating temperature for the equipment.

[0003] Existing technologies usually use air conditioning systems to dissipate heat from equipment in data centers. While cooling, the air conditioning systems also consume a lot of electricity and release a lot of heat into the environment.

[0004] Due to the characteristics of geological conditions and resource distribution, data centers can be built in sub-plateau areas. The climate characteristics of sub-plateau areas are mainly affected by topography and marine climate, and the temperature is between 0℃ and 25℃ throughout the year. Therefore, the natural environment of sub-plateau areas can be used to build the cooling system of data centers. Summary of the invention

[0005] The present invention provides a refrigeration method, device, equipment and storage medium for a data center to solve the problem of high energy consumption of the refrigeration system of the data center in the field of oil exploration. It can reduce the energy consumption of the refrigeration system while reducing carbon emissions to achieve energy conservation and emission reduction.

[0006] According to one aspect of the present invention, a refrigeration system for a data center is provided, the refrigeration system comprising a heat exchange device, a cold channel, a hot channel, an air supply port and an air return port; the cold channel is located in front of a cabinet of the data center, the hot channel is located behind the cabinet of the data center; the air supply port is connected to the cold channel, and the air return port is connected to the hot channel;

[0007] The heat exchange device is used to obtain outdoor fresh air from the data center, and perform heat exchange processing on the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain cooling air and hot air to be exhausted;

[0008] The heat exchange device is also used to transport the cooling air to the cold channel through the air supply port, and discharge the hot air to be exhausted to the outside of the data center.

[0009] According to another aspect of the present invention, a cooling method for a data center is provided, the method being performed by a cooling system, the cooling system comprising a heat exchange device, a cold channel, a hot channel, an air supply port, and an air return port; the cold channel is located in front of a cabinet of the data center, the hot channel is located behind the cabinet of the data center; the air supply port is connected to the cold channel, and the air return port is connected to the hot channel; the method comprising:

[0010] The outdoor fresh air of the data center is obtained through the heat exchange equipment, and the outdoor fresh air is heat exchanged with the indoor hot air in the hot channel obtained through the return air port to obtain cooling air and hot air to be exhausted;

[0011] The cooling air is delivered to the cold channel through the air supply vents by the heat exchange equipment, and the hot air to be exhausted is discharged to the outside of the data center.

[0012] The technical solution of the embodiment of the present invention obtains outdoor fresh air from the data center through a heat exchange device, and performs heat exchange processing between the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain refrigerated air and hot air to be exhausted; the refrigerated air is transported to the cold channel through the air supply port through the heat exchange device, and the hot air to be exhausted is discharged to the outside of the data center. This technical solution solves the problem of high energy consumption of the refrigeration system of the data center in the field of oil exploration, and can reduce carbon emissions while reducing the energy consumption of the refrigeration system, thereby achieving energy conservation and emission reduction.

[0013] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the structure of a cooling system for a data center provided according to Embodiment 1 of the present invention;

[0016] Figure 2A is a schematic diagram of the structure of a refrigeration system for a data center provided according to Embodiment 2 of the present invention;

[0017] Figure 2B is a working schematic diagram of a refrigeration system provided according to Embodiment 2 of the present invention;

[0018] Figure 3This is a flow chart of a cooling method for a data center provided according to Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. The acquisition, storage, use, processing, etc. of data in the technical solution of this application comply with the relevant provisions of national laws and regulations.

[0021] Embodiment 1

[0022] Figure 1 The present invention provides a schematic diagram of a cooling system for a data center in a first embodiment. This embodiment is applicable to natural air cooling scenarios in data centers in sub-alpine areas. Figure 1 As shown, the refrigeration system includes a heat exchange device 110, an air supply port 120, a cold channel 130, a hot channel 140 and a return air port 150; the cold channel 130 is located in front of the cabinet of the data center, and the hot channel 140 is located behind the cabinet of the data center; the air supply port 120 is connected to the cold channel 130, and the return air port 150 is connected to the hot channel 140;

[0023] The heat exchange device 110 is used to obtain outdoor fresh air from the data center, and perform heat exchange processing on the outdoor fresh air and the indoor hot air in the hot channel 140 obtained through the return air port 150 to obtain cooling air and hot air to be exhausted;

[0024] The heat exchange device 110 is also used to transport the cooling air to the cold channel 130 through the air supply port 120, and discharge the hot air to be exhausted to the outside of the data center.

[0025] Understandably, the climate characteristics of the sub-plateau region are mainly affected by the topography and marine climate, showing a variety of climate types. The climate of the sub-plateau region can generally be divided into tropical monsoon climate, temperate monsoon climate and plateau climate. Due to the high terrain of the sub-plateau region, the summer temperature is relatively low, usually around 20 degrees Celsius. The winter temperature is very low, often between minus 10 and minus 20 degrees Celsius. Due to the small impact of the ocean, the daily temperature difference is relatively large, with higher temperatures during the day and lower temperatures at night. Especially in the sub-plateau region at an altitude of about 1,500 meters, there is no high temperature or high humidity all year round, the annual average temperature is moderate, and the climate conditions (temperature 0℃-25℃, humidity 20%-50%) are suitable for natural air cooling in data centers for two-thirds of the year.

[0026] In this solution, the heat exchange device 110 can be a full heat exchange fresh air device (Energy Recovery Ventilation, ERV). The heat exchange device 110 can obtain outdoor fresh air from the data center, and perform heat exchange processing on the outdoor fresh air and the indoor hot air in the hot channel 140 obtained through the return air port 150 to obtain refrigerated air and hot air to be exhausted. The heat exchange device 110 can transport the refrigerated air to the cold channel 130 through the air supply port 120. The refrigerated air can circulate through the cold channel 130 to cool the cabinet from front to back, forming indoor hot air behind the cabinet. The indoor hot air can circulate to the return air port 150 through the hot channel 140 and be collected by the heat exchange device 110. At the same time, the heat exchange device 110 can discharge the hot air to be exhausted to the outside of the data center to achieve heat exchange.

[0027] In this solution, optionally, the heat exchange is a total heat exchange, and the total heat exchange includes sensible heat exchange and latent heat exchange, and the sensible heat exchange and the latent heat exchange are performed simultaneously.

[0028] It is easy to understand that the heat exchange can be a total heat exchange, including sensible heat exchange, that is, the exchange of air temperature, and latent heat exchange, that is, the exchange of air humidity. Sensible heat exchange and latent heat exchange can be carried out simultaneously to effectively reduce energy consumption.

[0029] The technical solution of the embodiment of the present invention obtains outdoor fresh air from the data center through a heat exchange device, and performs heat exchange processing between the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain refrigerated air and hot air to be exhausted; the refrigerated air is transported to the cold channel through the air supply port through the heat exchange device, and the hot air to be exhausted is discharged to the outside of the data center. This technical solution solves the problem of high energy consumption of the refrigeration system of the data center in the field of oil exploration, and can reduce carbon emissions while reducing the energy consumption of the refrigeration system, thereby achieving energy conservation and emission reduction.

[0030] Embodiment 2

[0031] Figure 2A This is a schematic diagram of a cooling system for a data center provided in Embodiment 2 of the present invention. This embodiment is based on the above embodiment and is refined. Figure 2A As shown, in Figure 1 On the basis of the refrigeration system shown, the refrigeration system further includes an air conditioning device 260, and the air conditioning device 260 is connected to the heat exchange device 210;

[0032] The heat exchange device 210 is also used to deliver the refrigerated air to the air conditioning device 260;

[0033] The air conditioning device 260 is used to deliver the cooling air to the cold channel 230 through the air supply port 220 if the cooling air meets the preset cooling conditions;

[0034] The air conditioning device 260 is also used for processing the refrigerated air at least once according to the comparison result between the refrigerated air and the refrigeration condition if the refrigerated air does not meet the preset refrigeration condition, until the refrigerated air meets the preset refrigeration condition.

[0035] It should be noted that the outdoor environment of the data center is a natural environment and cannot always meet the cooling conditions for electronic equipment in the data center, such as excessive humidity in the outdoor air after rain. In order to always meet the cooling needs of the data center, the refrigeration system can add air conditioning equipment 260 to accurately control the cooling air to avoid adverse effects of the cooling air in the process of heat dissipation for the electronic equipment in the cabinet, such as excessive humidity in the cooling air causing short circuit of the electronic equipment.

[0036] After obtaining the refrigerated air, the heat exchange device 210 may not directly deliver the refrigerated air to the cold channel to transfer heat energy to the cabinet, but deliver it to the air conditioning device 260. The air conditioning device 260 can determine whether the refrigerated air meets the refrigeration conditions through sensors such as thermometers and humidity. Among them, the refrigeration conditions may include temperature conditions, humidity conditions, and gas composition conditions. Specifically, the temperature condition can be used to evaluate whether the refrigerated air temperature is within a preset temperature range, the humidity condition can be used to evaluate whether the refrigerated air humidity is within a preset humidity range, and the gas composition condition can be used to evaluate whether the refrigerated air contains harmful gases that affect the operation of electronic equipment. Refrigerated air that meets the refrigeration conditions can effectively dissipate heat from electronic equipment while ensuring the normal operation of electronic equipment.

[0037] If the cooling air meets the preset cooling condition, the air conditioning device 260 can deliver the cooling air to the cold channel 230 through the air outlet 220, so that the cooling air circulates in the cold channel and takes away the heat generated by the electronic equipment in the cabinet. If the cooling air does not meet the preset cooling condition, the air conditioning device 260 can process the cooling air at least once according to the comparison result between the cooling air and the cooling condition until the cooling air meets the preset cooling condition. The processing of the cooling air can include heating, humidification, drying, and absorbing harmful gases.

[0038] Based on the above solution, optionally, the refrigeration condition includes a temperature condition, and the temperature condition includes that the refrigeration air temperature is not lower than a preset temperature threshold;

[0039] The air conditioning device 260 is also used to heat the cooling air at least once according to the comparison result between the cooling air temperature and the temperature threshold if the cooling air does not meet the temperature condition, until the cooling air meets the temperature condition.

[0040] For example, the temperature threshold may be 8° C. When the temperature of the cooling air is lower than 8° C., the air conditioning device 260 may gradually increase the temperature of the cooling air until the temperature of the cooling air is no lower than 8° C.

[0041] In a feasible solution, the refrigeration condition also includes a humidity condition; the humidity condition includes that the humidity of the refrigerated air is not higher than a preset first humidity threshold;

[0042] The air conditioning device 260 is further configured to dehumidify the refrigerated air at least once according to a comparison result between the humidity of the refrigerated air and a first humidity threshold value if the refrigerated air does not meet the humidity condition, until the refrigerated air meets the humidity condition.

[0043] In another feasible solution, the humidity condition further includes that the humidity of the refrigerated air is not lower than a preset second humidity threshold;

[0044] The air conditioning device 260 is further configured to humidify the refrigerated air at least once according to a comparison result between the humidity of the refrigerated air and a second humidity threshold value if the refrigerated air does not meet the humidity condition, until the refrigerated air meets the humidity condition.

[0045] In a preferred embodiment, the refrigeration condition also includes a gas composition condition, and the gas composition condition includes that the content of a preset gas type is lower than a preset content threshold; for example, the preset gas type may include acidic gases such as sulfur dioxide and hydrogen sulfide.

[0046] The air conditioning device 260 is also used to absorb the target gas on the refrigerant gas according to the comparison result of the content of the target gas type in the refrigerant air and the preset content threshold value if the refrigerant air does not meet the gas composition condition, until the refrigerant air meets the gas composition condition.

[0047] The above scheme can process the cooling air that does not meet the cooling conditions, ensure the normal operation of the electronic equipment in the data center, and is conducive to extending the service life of the electronic equipment, reducing cooling costs, and improving energy efficiency.

[0048] Figure 2B FIG. 1 is a schematic diagram of the operation of the refrigeration system provided in Embodiment 2 of the present invention. In a specific example, the operation principle of the refrigeration system of the data center A in the sub-plateau region is as follows: Figure 2B As shown, it has the following advantages:

[0049] (1) Natural air cooling technology uses fresh air units with heat exchange for air supply and exhaust: Using fresh air units with heat exchange in conjunction with precision air conditioning units can optimize airflow organization, making the organization of hot and cold air in the data center more efficient.

[0050] (2) The layout of air supply and exhaust vents is reasonable and efficient: the air supply vent is arranged at the return air vent of the precision air-conditioning unit, and the natural wind after heat exchange directly enters the precision air-conditioning unit, so that the precision air-conditioning unit operates at low load or zero load; the exhaust vent is arranged above the heat channel of the cabinet to promptly take away the heat energy generated by the computer equipment and reduce the heat load of the precision air-conditioning unit.

[0051] (3) Reasonable use of heat exchange of fresh air units: Data centers have strict requirements on air outlet temperature. When the air outlet temperature is lower than 8°C, the water vapor in the air condenses into water droplets, which can easily cause microcircuit short circuits in electronic equipment close to the air outlet. The use of heat exchange of fresh air units can effectively avoid the condition where the air outlet temperature of precision air conditioning units is too low when using natural air cooling technology.

[0052] (4) The ERV fresh air unit processes heat exchange as full heat exchange: in winter, heat exchange will cause the outdoor natural wind to heat up and increase humidity, while in summer, it is just the opposite. The fresh air unit processes heat exchange as full heat exchange, that is, sensible heat (temperature) and latent heat (humidity) are converted at the same time, which can effectively reduce energy consumption.

[0053] (5) Reasonable control of heat exchange according to outdoor climate conditions: In the sub-plateau region, natural wind can be directly used for cooling the data center during most of the year. Its temperature and humidity are sufficient for the precision air-conditioning unit to operate at zero load. Under this condition, heat exchange can be prevented by controlling the exhaust port, and outdoor natural wind can be used directly.

[0054] (6) Heat energy reuse: The large amount of heat energy emitted by the data center through the refrigeration system can be effectively utilized, such as winter heating and hot water production, which can effectively reduce the overall energy consumption of the data center.

[0055] The technical solution of the embodiment of the present invention obtains outdoor fresh air from the data center through a heat exchange device, and performs heat exchange processing between the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain refrigerated air and hot air to be exhausted; the refrigerated air is transported to the cold channel through the air supply port through the heat exchange device, and the hot air to be exhausted is discharged to the outside of the data center. This technical solution solves the problem of high energy consumption of the refrigeration system of the data center in the field of oil exploration, and can reduce carbon emissions while reducing the energy consumption of the refrigeration system, thereby achieving energy conservation and emission reduction.

[0056] Embodiment 3

[0057] Figure 3 A flowchart of a cooling method for a data center is provided for the third embodiment of the present invention. This embodiment is applicable to natural air cooling scenarios of data centers in sub-plateau areas. Figure 3 As shown, the method is performed by a refrigeration system, the refrigeration system includes a heat exchange device, a cold channel, a hot channel, an air supply port and a return air port; the cold channel is located in front of a cabinet in a data center, and the hot channel is located behind a cabinet in the data center; the air supply port is connected to the cold channel, and the return air port is connected to the hot channel; the method includes:

[0058] S310, obtaining outdoor fresh air of the data center through a heat exchange device, and performing heat exchange processing on the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain cooling air and hot air to be exhausted.

[0059] S320. The cooling air is delivered to the cold channel through the air supply port by the heat exchange device, and the hot air to be exhausted is discharged to the outside of the data center.

[0060] In this solution, the heat exchange device can be a full heat exchange fresh air device. The heat exchange device can obtain outdoor fresh air from the data center, and perform heat exchange processing on the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain refrigerated air and hot air to be exhausted. The heat exchange device can transport the refrigerated air to the cold channel through the air supply port. The refrigerated air can circulate through the cold channel to cool the cabinet from front to back, forming indoor hot air behind the cabinet. The indoor hot air can circulate through the hot channel to the return air port and be collected by the heat exchange device. At the same time, the heat exchange device can discharge the hot air to be exhausted to the outside of the data center to achieve heat exchange.

[0061] In this solution, optionally, the heat exchange is a total heat exchange, and the total heat exchange includes sensible heat exchange and latent heat exchange, and the sensible heat exchange and the latent heat exchange are performed simultaneously.

[0062] It is easy to understand that the heat exchange can be a total heat exchange, including sensible heat exchange, that is, the exchange of air temperature, and latent heat exchange, that is, the exchange of air humidity. Sensible heat exchange and latent heat exchange can be carried out simultaneously to effectively reduce energy consumption.

[0063] On the basis of the above solution, the refrigeration system further includes an air conditioning device, and the air conditioning device is connected to the heat exchange device; the method further includes:

[0064] The refrigerated air is delivered to the air conditioning equipment through the heat exchange equipment;

[0065] If the cooling air meets the preset cooling conditions, the cooling air is delivered to the cold aisle through the air supply port by the air conditioning equipment;

[0066] If the refrigerated air does not meet the preset refrigeration condition, the refrigerated air is processed at least once by the air conditioning device according to the comparison result between the refrigerated air and the refrigeration condition until the refrigerated air meets the preset refrigeration condition.

[0067] It should be noted that the outdoor environment of the data center is a natural environment and cannot always meet the cooling conditions for electronic equipment in the data center, such as excessive humidity in the outdoor air after rain. In order to always meet the cooling needs of the data center, air conditioning equipment can be added to the refrigeration system to accurately control the cooling air to avoid adverse effects of cooling air in the process of dissipating heat for electronic equipment in the cabinet, such as excessive humidity in the cooling air causing short circuits in electronic equipment.

[0068] After obtaining the refrigerated air, the heat exchange device may not directly deliver the refrigerated air to the cold channel to transfer heat energy to the cabinet, but to the air conditioning equipment. The air conditioning equipment can determine whether the refrigerated air meets the refrigeration conditions through sensors such as thermometers and humidity. Among them, the refrigeration conditions may include temperature conditions, humidity conditions, and gas composition conditions. Specifically, the temperature condition can be used to evaluate whether the refrigerated air temperature is within a preset temperature range, the humidity condition can be used to evaluate whether the refrigerated air humidity is within a preset humidity range, and the gas composition condition can be used to evaluate whether the refrigerated air contains harmful gases that affect the operation of electronic equipment. Refrigerated air that meets the refrigeration conditions can effectively dissipate heat from electronic equipment while ensuring the normal operation of electronic equipment.

[0069] If the cooling air meets the preset cooling conditions, the air conditioning equipment can deliver the cooling air to the cold channel through the air outlet, so that the cooling air circulates in the cold channel and takes away the heat generated by the electronic equipment in the cabinet. If the cooling air does not meet the preset cooling conditions, the air conditioning equipment can process the cooling air at least once according to the comparison result between the cooling air and the cooling conditions until the cooling air meets the preset cooling conditions. The processing of the cooling air can include heating, humidification, drying, and absorbing harmful gases.

[0070] In a feasible solution, the refrigeration condition includes a temperature condition, and the temperature condition includes that the refrigeration air temperature is not lower than a preset temperature threshold; the method further includes:

[0071] If the cooling air does not meet the temperature condition, the cooling air is heated at least once by the air conditioning device according to the comparison result between the cooling air temperature and the temperature threshold value until the cooling air meets the temperature condition.

[0072] For example, the temperature threshold may be 8° C. When the temperature of the cooling air is lower than 8° C., the air conditioning device 260 may gradually increase the temperature of the cooling air until the temperature of the cooling air is no lower than 8° C.

[0073] In a feasible solution, the refrigeration condition also includes a humidity condition; the humidity condition includes that the humidity of the refrigerated air is not higher than a preset first humidity threshold;

[0074] The air conditioning device is also used for dehumidifying the refrigerated air at least once according to the comparison result of the refrigerated air humidity and the first humidity threshold value if the refrigerated air does not meet the humidity condition, until the refrigerated air meets the humidity condition.

[0075] In another feasible solution, the humidity condition further includes that the humidity of the refrigerated air is not lower than a preset second humidity threshold;

[0076] The air conditioning device is also used for humidifying the refrigerated air at least once according to the comparison result of the refrigerated air humidity and the second humidity threshold value if the refrigerated air does not meet the humidity condition, until the refrigerated air meets the humidity condition.

[0077] In a preferred embodiment, the refrigeration condition also includes a gas composition condition, and the gas composition condition includes that the content of a preset gas type is lower than a preset content threshold; for example, the preset gas type may include acidic gases such as sulfur dioxide and hydrogen sulfide.

[0078] The air conditioning equipment is also used to absorb the target gas on the refrigerant gas according to the comparison result of the content of the target gas type in the refrigerant air and the preset content threshold value if the refrigerant air does not meet the gas composition condition, until the refrigerant air meets the gas composition condition.

[0079] The technical solution of the embodiment of the present invention obtains outdoor fresh air from the data center through a heat exchange device, and performs heat exchange processing between the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain refrigerated air and hot air to be exhausted; the refrigerated air is transported to the cold channel through the air supply port through the heat exchange device, and the hot air to be exhausted is discharged to the outside of the data center. This technical solution solves the problem of high energy consumption of the refrigeration system of the data center in the field of oil exploration, and can reduce carbon emissions while reducing the energy consumption of the refrigeration system, thereby achieving energy conservation and emission reduction.

Claims

1. A cooling system for a data center, characterized in that: The refrigeration system includes a heat exchange device, a cold channel, a hot channel, an air supply port and an air return port; the cold channel is located in front of the cabinet of the data center, and the hot channel is located behind the cabinet of the data center; the air supply port is connected to the cold channel, and the air return port is connected to the hot channel; The heat exchange device is used to obtain outdoor fresh air from the data center, and perform heat exchange processing on the outdoor fresh air and the indoor hot air in the hot channel obtained through the return air port to obtain cooling air and hot air to be exhausted; The heat exchange device is also used to transport the cooling air to the cold channel through the air supply port, and discharge the hot air to be exhausted to the outside of the data center.

2. The system according to claim 1, characterized in that The heat exchange is total heat exchange, which includes sensible heat exchange and latent heat exchange, and the sensible heat exchange and the latent heat exchange are performed simultaneously.

3. The system according to claim 2, characterized in that The refrigeration system further comprises an air conditioning device, and the air conditioning device is connected to the heat exchange device; The heat exchange device is also used to deliver refrigerated air to the air conditioning device; The air conditioning device is used to deliver the refrigerated air to the cold channel through the air supply port if the refrigerated air meets the preset refrigeration conditions; The air conditioning device is also used for processing the refrigerated air at least once according to the comparison result between the refrigerated air and the refrigeration condition if the refrigerated air does not meet the preset refrigeration condition, until the refrigerated air meets the preset refrigeration condition.

4. The system according to claim 3, characterized in that The refrigeration condition includes a temperature condition, and the temperature condition includes that the refrigeration air temperature is not lower than a preset temperature threshold; The air conditioning device is also used to increase the temperature of the refrigerated air at least once according to the comparison result between the refrigerated air temperature and the temperature threshold value if the refrigerated air does not meet the temperature condition, until the refrigerated air meets the temperature condition.

5. The system according to claim 4, characterized in that The refrigeration condition also includes a humidity condition; the humidity condition includes that the refrigeration air humidity is not higher than a preset humidity threshold; The air conditioning device is also used for dehumidifying the refrigerated air at least once according to the comparison result between the humidity of the refrigerated air and the humidity threshold value if the refrigerated air does not meet the humidity condition, until the refrigerated air meets the humidity condition.

6. A cooling method for a data center, characterized in that: The method is performed by a refrigeration system, the refrigeration system comprising a heat exchange device, a cold channel, a hot channel, an air supply port and an air return port; the cold channel is located in front of a cabinet in a data center, the hot channel is located behind a cabinet in the data center; the air supply port is connected to the cold channel, and the air return port is connected to the hot channel; the method comprises: The outdoor fresh air of the data center is obtained through the heat exchange equipment, and the outdoor fresh air is heat exchanged with the indoor hot air in the hot channel obtained through the return air port to obtain cooling air and hot air to be exhausted; The cooling air is delivered to the cold channel through the air supply vents by the heat exchange equipment, and the hot air to be exhausted is discharged to the outside of the data center.

7. The method according to claim 6, characterized in that The heat exchange is total heat exchange, which includes sensible heat exchange and latent heat exchange, and the sensible heat exchange and the latent heat exchange are performed simultaneously.

8. The method according to claim 7, characterized in that The refrigeration system further includes an air conditioning device, and the air conditioning device is connected to the heat exchange device; the method further includes: The refrigerated air is delivered to the air conditioning equipment through the heat exchange equipment; If the cooling air meets the preset cooling conditions, the cooling air is delivered to the cold aisle through the air supply port by the air conditioning equipment; If the refrigerated air does not meet the preset refrigeration condition, the refrigerated air is processed at least once by the air conditioning device according to the comparison result between the refrigerated air and the refrigeration condition until the refrigerated air meets the preset refrigeration condition.

9. The method according to claim 8, characterized in that The refrigeration condition includes a temperature condition, and the temperature condition includes that the refrigeration air temperature is not lower than a preset temperature threshold; the method further includes: If the cooling air does not meet the temperature condition, the cooling air is heated at least once by the air conditioning device according to the comparison result between the cooling air temperature and the temperature threshold value until the cooling air meets the temperature condition.

10. The method according to claim 9, characterized in that The refrigeration condition also includes a humidity condition; the humidity condition includes that the humidity of the refrigeration air is not higher than a preset humidity threshold; the method also includes: If the refrigerated air does not meet the humidity condition, the refrigerated air is dehumidified at least once by the air conditioning device according to the comparison result of the refrigerated air humidity and the humidity threshold value until the refrigerated air meets the humidity condition.

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