Cooling apparatus, heat exchange system and data center

Abstract

The disclosure provides a cooling device, a heat exchange system and a data center, and relates to the technical field of heat exchange for data centers. The cooling device comprises a tower body for circulating cooling water used for cooling a heat exchange medium; a water treatment assembly arranged in the tower body, the water treatment assembly comprising an electromagnetic wave excitation device and an electromagnetic wave transceiver, the electromagnetic wave excitation device being used for generating electromagnetic waves, and the electromagnetic wave transceiver being used for transmitting the electromagnetic waves, wherein the transmission path of the electromagnetic waves passes through the cooling water; and a control device configured to control the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to the circulation rate of the cooling water. According to the technology of the disclosure, the water quality treatment effect of the cooling water is improved, the probability of scale formation and corrosion of the cooling device is reduced, the growth of microorganisms is effectively inhibited, and the effect of sterilization and algae killing is achieved; at the same time, the sewage discharge amount is reduced, and the purpose of energy saving and environmental protection is achieved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of data centers, in particular to the technical field of heat exchange for data centers, and more particularly to a cooling device, a heat exchange system and a data center. BACKGROUND

[0002] In the related art, a cooling tower is used to cool an indoor machine room of a data center, and the cooling tower usually uses circulating cooling water to exchange heat with a heat exchange medium. In order to avoid scaling, corrosion and other phenomena of the cooling tower, chemical agents are usually added to the circulating cooling water to improve the water quality of the circulating cooling water, which pollutes the circulating cooling water and causes the wastewater discharge of the cooling tower to be substandard, which is not conducive to energy saving and environmental protection. SUMMARY

[0003] The present disclosure provides a cooling device, a heat exchange system and a data center.

[0004] According to an aspect of the present disclosure, a cooling device is provided, comprising:

[0005] a tower body for circulating cooling water, the cooling water being used to cool a heat exchange medium;

[0006] a water treatment assembly arranged in the tower body, the water treatment assembly comprising an electromagnetic wave excitation device and an electromagnetic wave transceiver device, the electromagnetic wave excitation device being used to generate electromagnetic waves, and the electromagnetic wave transceiver device being used to transmit the electromagnetic waves, wherein a transmission path of the electromagnetic waves passes through the cooling water;

[0007] a control device configured to control a frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to a circulation rate of the cooling water.

[0008] In an embodiment, a water collecting tank is arranged inside the tower body, a spraying device is arranged above the water collecting tank, and a circulating water pump is arranged between the water collecting tank and the spraying device, the circulating water pump being used to pump the cooling water from the water collecting tank to the spraying device.

[0009] The control device is further configured to adjust the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to a flow rate of the circulating water pump.

[0010] In an embodiment, the electromagnetic wave transceiver device comprises a pair of transmitting units and receiving units, the transmitting units receive the electromagnetic waves from the electromagnetic wave excitation device through a signal cable, the transmitting units are used to emit the electromagnetic waves generated by the electromagnetic wave excitation device, and the receiving units are used to receive the electromagnetic waves emitted by the transmitting units.

[0011] The transmitting units are arranged on a bottom wall of the water collecting tank, and the receiving units are arranged on a side wall of the tower body and above a liquid level of the cooling water in the water collecting tank.

[0012] In an embodiment, the water collecting tank is provided with a blowdown electromagnetic valve, which is used to drain the cooling water in the water collecting tank when opened.

[0013] The control device is further configured to control the blowdown electromagnetic valve to open when the electrical conductivity of the cooling water meets a preset value.

[0014] In an embodiment, the electromagnetic wave transceiving device is multiple, and the multiple electromagnetic wave transceiving devices are uniformly arranged in the circumferential direction of the water collecting tank.

[0015] In an embodiment, the cooling device further comprises:

[0016] A heat exchange coil is arranged below the spray assembly, and the heat exchange coil is used for flowing of a heat exchange medium.

[0017] In an embodiment, the cooling device further comprises:

[0018] A water quality detection device is used to detect the water quality of the cooling water and generate a water quality detection result.

[0019] The control device is further configured to adjust the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device according to the water quality detection result.

[0020] In an embodiment, the cooling device further comprises:

[0021] A fan is arranged at the top of the tower body, and the fan is used to form an upward flowing air flow in the tower body.

[0022] The control device is further configured to adjust the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device according to the rotating speed of the fan.

[0023] In an embodiment, the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device ranges from 100 kHz to 10,000 kHz.

[0024] According to another aspect of the present disclosure, a heat exchange system is also provided, which comprises an indoor heat exchange device and a cooling device according to the above-mentioned embodiments of the present disclosure.

[0025] The heat exchange medium circulates between the indoor heat exchange device and the cooling device.

[0026] According to another aspect of the present disclosure, a data center is also provided, which comprises a heat exchange system for the data center according to the above-mentioned embodiments of the present disclosure.

[0027] According to the technology of the present disclosure, the water quality treatment effect on cooling water is improved, the probability of scale and corrosion of the cooling equipment is reduced, the growth of microorganisms is effectively inhibited, and the sterilization and algae killing effects are achieved. Moreover, the pollution to water resources is avoided, the sewage discharge is reduced, and the energy saving and environmental protection purposes are achieved. In addition, the integrated setting of the tower body and the water treatment assembly is realized, which is beneficial to the rapid delivery of products and the subsequent maintenance is relatively convenient.

[0028] It should be understood that the content described in the summary section is not intended to limit the key or important features of the embodiments of the present disclosure, nor to limit the scope of the present disclosure. Other features of the present disclosure will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

[0030] Figure 1 A structural schematic diagram of a cooling equipment according to an embodiment of the present disclosure is shown.

[0031] Explanation of reference signs:

[0032] Cooling equipment 1;

[0033] Tower body 10; water collecting tank 11; spraying device 12; circulating water pump 13; heat exchange coil 14; fan 15; water quality detection device 16; blowdown electromagnetic valve 17;

[0034] Electromagnetic wave excitation device 21; transmitting unit 22; receiving unit 23;

[0035] Control device 30;

[0036] Power distribution device 40. DETAILED DESCRIPTION

[0037] Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, including various details of the embodiments of the present disclosure to assist in the understanding, which should be considered as merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Also, for the sake of clarity and conciseness, the description below omits the description of well-known functions and structures.

[0038] The following description refers to the accompanying drawings, wherein: Figure 1 A cooling equipment 1 according to an embodiment of the present disclosure is described below.

[0039] As Figure 1As shown, the cooling device 1 of the embodiment of the present disclosure comprises a tower body 10, a water treatment assembly, and a control device 30.

[0040] Specifically, the tower body 10 is used for circulating cooling water, and the cooling water is used for cooling a heat exchange medium. The water treatment assembly is arranged in the tower body 10, and the water treatment assembly comprises an electromagnetic wave excitation device 21 and an electromagnetic wave transceiver device (i.e., a transmitting unit 22 and a receiving unit 23 in the figure), the electromagnetic wave excitation device 21 is used for generating electromagnetic waves, and the electromagnetic wave transceiver device is used for transmitting the electromagnetic waves, wherein the transmission path of the electromagnetic waves passes through the cooling water. The control device 30 is configured to control the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device 21 according to the circulation rate of the cooling water.

[0041] The cooling device 1 of the embodiment of the present disclosure can be any form of cooling tower, for example, can be an open cooling tower, a closed cooling tower, a counterflow cooling tower, or a crossflow cooling tower, etc.

[0042] In a specific application scenario, the cooling device 1 can be used in a heat exchange system to cool the heat exchange medium of an indoor heat exchange device of the heat exchange system, and the indoor heat exchange device absorbs heat of a target environment by using the cooled heat exchange medium to achieve the purpose of heat exchange cooling of the target environment.

[0043] It can be understood that the cooling tower uses cooling water as a circulating coolant, and at the same time absorbs heat from a system through a heat exchange medium, then absorbs the heat of the heat exchange medium by the cooling water, and discharges the heat to the atmosphere to reduce the temperature of the heat exchange medium. Specifically, the cooling water and the air flow contact after the cooling water and the air flow contact to produce steam through heat exchange, and the steam volatilization takes away heat to achieve the principles of evaporation heat dissipation, convection heat transfer, and radiation heat transfer, thereby reducing the temperature of the heat exchange medium.

[0044] More specifically, for the open cooling tower, the cooling water is sprayed onto the cooling filler in the form of spray, and the heat exchange purpose is achieved through the contact between the misty cooling water and the air. In addition, the air flow circulation in the tower can be driven by the fan 15 to take out the hot air flow after heat exchange with the cooling water, thereby achieving the cooling purpose.

[0045] For the closed cooling tower, dry (low enthalpy) air can be pumped into the tower body 10 by the fan 15, and high-temperature water molecules with high saturated vapor pressure flow to the air flow with low pressure. The wet and hot (high enthalpy) cooling water is sprayed into the inside of the tower body 10 from the water spraying system. When the cooling water and the air contact, on the one hand, the heat is transferred directly between the cooling water and the air, and on the other hand, due to the pressure difference between the water vapor surface and the air, the evaporation phenomenon occurs under the action of the pressure, and the heat in the water is taken away, that is, the heat is transferred by evaporation, thereby achieving the cooling purpose.

[0046] In the embodiments of the present disclosure, the cooling water can be circulated in the tower body 10 in various ways, for example, by means of the circulating water pump 13. The cooling of the cooling water to the heat exchange medium can be achieved by the heat exchange medium being cooled by the cooling water contacting the cooling filler, or by the cooling water being evaporated by contacting the air, and the heat in the heat exchange medium being carried away by the water vapor, so as to achieve the purpose of cooling the heat exchange medium. The embodiments of the present disclosure do not make specific limitations on this.

[0047] The electromagnetic wave excitation device 21 generates electromagnetic waves of a certain frequency when energized. The frequency range of the electromagnetic waves can be set according to actual conditions. Preferably, the electromagnetic waves can be low-frequency electromagnetic waves, for example, alternating electromagnetic waves of 100 kHz to 10,000 kHz.

[0048] The electromagnetic waves generated by the electromagnetic wave excitation device 21 are transmitted to the electromagnetic wave transceiver device through the signal cable. The electromagnetic wave transceiver device includes a pair of transmission units 22 and receiving units 23. The transmission units 22 are used to send the received electromagnetic waves, and the receiving units 23 are used to receive the electromagnetic waves emitted by the transmission units 22. The transmission units 22 and the receiving units 23 are oppositely arranged inside the tower body 10 to form an electromagnetic field in the corresponding area inside the tower body 10.

[0049] The transmission path of the electromagnetic waves between the receiving units 23 and the transmission units 22 passes through the cooling water. It can be understood that at least part of the electromagnetic field between the receiving units 23 and the transmission units 22 acts on the cooling water. The embodiments of the present disclosure do not make specific limitations on the setting position of the electromagnetic wave transceiver device on the tower body 10, as long as the transmission path of the electromagnetic waves passes through the circulation path of the cooling water. For example, the electromagnetic wave transceiver device can be arranged at the bottom of the tower body 10, so that the transmission path of the electromagnetic waves passes through the cooling water collected in the water collecting tank 11 at the bottom of the tower body 10. For another example, the electromagnetic wave transceiver device can be arranged above the water collecting tank 11, so that the transmission path of the electromagnetic waves passes through the cooling water spraying area above the water collecting tank 11.

[0050] It can be understood that, since the transmission path of the electromagnetic waves passes through the cooling water, the electromagnetic waves form an ionic current in the cooling water and conduct in the water during the transmission process. Thus, the vibration energy and the rotational energy of the outer electrons of the water molecules of the cooling water are increased, thereby enhancing the energy of the water molecules and not producing radiation, improving the activation energy of the cooling water, and achieving the purpose of controlling the water quality.

[0051] More specifically, for the crystal structure of calcium carbonate in the cooling water, aragonite crystal structure (i.e. soft scale) can be preferentially generated, so as to facilitate the calcium carbonate in the form of aragonite crystal structure to be washed away by the water flow, achieve the purpose of easy cleaning, and avoid fouling in the tower body 10. Secondly, by applying a magnetic field to the cooling water, the chemical reaction process in the cooling water can be changed, and a dense passivation layer can be formed on the surface of the metal tower body 10, avoiding direct contact between the cooling water and the metal tower body 10, thereby reducing the probability of corrosion of the metal tower body 10. In addition, the electromagnetic field can inhibit the growth of microorganisms in the cooling water, thereby achieving the effect of sterilization and algae killing, and further improving the water quality of the cooling water.

[0052] The control device 30 can control the output frequency of the electromagnetic wave excitation device 21 by adjusting the output voltage or output current of the power module of the electromagnetic wave excitation device 21, so as to control the electromagnetic wave excitation device 21 to output electromagnetic waves of a preset frequency.

[0053] More specifically, for different circulation rate ranges of the cooling water, the output frequency of the electromagnetic wave excitation device 21 can be set accordingly. The control device 30 controls the output frequency of the electromagnetic wave excitation device 21 according to the circulation rate range in which the circulation rate of the cooling water is located, so as to output electromagnetic waves of a corresponding preset frequency.

[0054] The frequency of the electromagnetic waves generated by the electromagnetic wave excitation device 21 can increase with the increase of the circulation rate of the cooling water, so as to increase the magnetic field strength formed in the transmission process of the electromagnetic waves when the circulation rate of the cooling water is large, thereby improving the water quality treatment effect on the cooling water.

[0055] The cooling equipment 1 according to the embodiments of the present disclosure can utilize the electromagnetic waves to treat the cooling water by setting the water treatment assembly including the electromagnetic wave excitation device 21 and the electromagnetic wave transceiver device, and the transmission path of the electromagnetic waves passes through the cooling water, thereby achieving the effect of improving the water quality of the cooling water, reducing the probability of fouling and corrosion of the cooling equipment 1, effectively inhibiting the growth of microorganisms, and achieving the effect of sterilization and algae killing. By treating the cooling water by using electromagnetic waves, compared with the treatment method of adding chemical agents to the cooling water in the related art, pollution of water resources can be avoided, and the amount of wastewater discharge is reduced, thereby achieving the purpose of energy saving and environmental protection.

[0056] Furthermore, the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device 21 can be controlled according to the circulation rate of the cooling water, so as to match the magnetic field strength formed in the transmission process of the electromagnetic waves with the circulation rate of the cooling water, thereby ensuring the stability of the water treatment.

[0057] In addition, the cooling device 1 of the embodiment of the present disclosure can realize integrated arrangement of the tower body 10 and the water treatment assembly, realize rapid assembly, save the installation and debugging process of the chemical water treatment system in the related art, realize rapid delivery of the product, and is convenient to maintain.

[0058] In an embodiment, the tower body 10 is internally provided with a water collecting tank 11, a spraying device 12 is arranged above the water collecting tank 11, cooling water circulates between the water collecting tank 11 and the spraying device 12, a circulating water pump 13 is arranged between the water collecting tank 11 and the spraying device 12, and the circulating water pump 13 is used to pump the cooling water from the water collecting tank 11 to the spraying device 12. The control device 30 is further configured to adjust the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device 21 according to the flow of the circulating water pump 13.

[0059] For example, the water collecting tank 11 can be arranged at the bottom of the tower body 10, and the spraying device 12 can be arranged at the top of the tower body 10. The water collecting tank 11 and the spraying device 12 are provided with a cooling water circulation pipe, and the circulating water pump 13 is arranged in the cooling water circulation pipe. Under the action of the circulating water pump 13, the cooling water circulates from the water collecting tank 11 to the spraying device 12 through the cooling water circulation pipe, and then falls into the water collecting tank 11 below the spraying device 12 through the spraying of the spraying device 12. In this way, the circulation of the cooling water in the tower body 10 is realized.

[0060] The circulation rate of the cooling water can be determined by detecting the flow of the cooling water in the cooling water circulation pipe, or by detecting the flow of the cooling water discharged from the water collecting tank 11.

[0061] Preferably, the circulating water pump 13 can be a water pump with adjustable flow, and the circulation rate of the cooling water can be determined by detecting the flow of the circulating water pump 13. More specifically, the flow of the circulating water pump 13 can be determined according to the rotating speed of the impeller of the circulating water pump 13, and then the circulation rate of the cooling water can be determined.

[0062] Through the above embodiment, the circulation rate of the cooling water can be determined conveniently and quickly, and the determined circulation rate is relatively accurate, so that the frequency of the electromagnetic waves can be more accurately and efficiently regulated and controlled.

[0063] In an embodiment, the electromagnetic wave transceiver device includes a pair of transmitting unit 22 and receiving unit 23, the transmitting unit 22 receives electromagnetic waves from the electromagnetic wave excitation device 21 through a signal cable, the transmitting unit 22 is used to emit electromagnetic waves generated by the electromagnetic wave excitation device 21, and the receiving unit 23 is used to receive electromagnetic waves emitted by the transmitting unit 22. The transmitting unit 22 is arranged on the bottom wall of the water collecting tank 11, the receiving unit 23 is arranged on the side wall of the tower body 10 and is located above the liquid level of the cooling water in the water collecting tank 11.

[0064] Exemplarily, the bottom of the tower body 10 is provided with a mounting cavity below the water collecting tank 11, which is used for mounting the power distribution device 40, the control device 30 and the electromagnetic wave excitation device 21. The electromagnetic wave excitation device 21 communicates with the receiving unit 23 through a signal cable. The transmitting unit 22 can be arranged at the bottom of the water collecting tank 11 and below the liquid level of the cooling water in the water collecting tank 11. The receiving unit 23 is arranged on the inner or outer side wall of the water collecting tank 11 and above the liquid level of the cooling water in the water collecting tank 11.

[0065] Preferably, the tower body 10 is made of metal, and the receiving unit 23 is arranged on the outer side wall of the tower body 10. In this way, the tower body 10 made of metal does not interfere with the transmission of electromagnetic waves, so as to ensure that the receiving unit 23 can successfully receive the electromagnetic waves transmitted by the transmitting unit 22, and the receiving unit 23 is also more convenient to install on the outer side wall of the tower body 10.

[0066] According to the above embodiment, by arranging the transmitting unit 22 and the receiving unit 23 below and above the liquid level of the cooling water in the water collecting tank 11 respectively, it can be ensured that the cooling water through which the electromagnetic waves transmitted between the transmitting unit 22 and the receiving unit 23 pass has a larger range, so as to increase the range of the effect of the electromagnetic waves on the cooling water, and further improve the water quality treatment effect on the cooling water.

[0067] In an embodiment, the water collecting tank 11 is provided with a blowdown electromagnetic valve 17, which is used for discharging the cooling water in the water collecting tank 11 when opened. The control device 30 is further configured to control the blowdown electromagnetic valve 17 to open when the electrical conductivity of the cooling water meets the preset value.

[0068] The electrical conductivity of the cooling water can be measured by any method, which is not limited in the embodiments of the present disclosure. For example, the electrical conductivity of the cooling water can be measured by an electrical conductivity measuring instrument arranged in the water collecting tank 11.

[0069] It can be understood that the electrical conductivity of the cooling water reflects the amount of salt contained in the cooling water, which is an important indicator of the purity of the cooling water. The higher the purity of the cooling water, the lower the salt content, the smaller the electrical conductivity and the greater the resistivity of the cooling water; the lower the purity of the cooling water, the higher the salt content, the greater the electrical conductivity and the smaller the resistivity of the cooling water. By measuring the electrical conductivity of the cooling water, the water quality of the cooling water can be reflected, and the higher the electrical conductivity, the worse the water quality of the cooling water.

[0070] When the electrical conductivity of the cooling water is greater than or equal to the preset value, the control device 30 controls the blowdown electromagnetic valve 17 to open, so as to discharge the cooling water in the water collecting tank 11 and add cooling water with high purity into the tower body 10, so as to replace the cooling water in the tower body 10. The preset value can be set according to actual conditions, which is not limited in the embodiments of the present disclosure.

[0071] Through the above embodiment, the water quality of the cooling water can be automatically monitored, and the discharge of the cooling water can be automatically controlled when the water quality of the cooling water meets the preset condition, thereby avoiding the situation that the cooling effect is reduced due to the deterioration of the water quality after multiple cycles, and reducing the manual maintenance cost of the cooling equipment 1.

[0072] In an embodiment, the electromagnetic wave transceiving devices are multiple, and the multiple electromagnetic wave transceiving devices are uniformly arranged in the circumferential direction of the water collecting tank 11.

[0073] Exemplarily, the multiple electromagnetic wave transceiving devices can be arranged in the central region of the bottom wall of the water collecting tank 11, and the emission directions of the multiple electromagnetic wave transceiving devices can be arranged in a divergent manner.

[0074] Through the above embodiment, the transmission area of the electromagnetic wave can be increased, thereby increasing the range of the cooling water, and further improving the water quality treatment effect of the cooling water.

[0075] In an embodiment, the cooling equipment 1 further comprises a heat exchange coil 14. The heat exchange coil 14 is arranged below the spraying assembly, and the heat exchange coil 14 is used for flowing of a heat exchange medium.

[0076] Exemplarily, the heat exchange coil 14 can be configured as a repeatedly bent structure, one end of the heat exchange coil 14 forms an input end, and the other end forms an output end. The input end is used to be connected with the heat exchange medium output end of the indoor heat exchange equipment of the heat exchange system, and is used for flowing of the heat exchange medium after absorbing heat into the heat exchange coil 14; the output end is used to be connected with the heat exchange medium input end of the indoor heat exchange equipment of the heat exchange system, and is used for outputting the cooled heat exchange medium from the heat exchange coil 14 to the heat exchange medium input end of the indoor heat exchange equipment.

[0077] The cooling water sprayed by the spraying device 12 directly contacts the outer pipe arms of the heat exchange coil 14, and then the cooling water absorbs the heat of the heat exchange medium in the heat exchange coil 14, thereby realizing cooling of the heat exchange medium.

[0078] According to the above embodiment, the heat exchange medium is directly sprayed with cooling water by the spraying device 12, thereby realizing water cooling of the heat exchange medium.

[0079] In an embodiment, the tower body 10 further comprises cooling fillers, and the cooling fillers are arranged between the heat exchange coil 14 and the water collecting tank 11, and are used for cooling of the cooling water.

[0080] Exemplarily, the material of the cooling tower fillers can include at least one of cork, asbestos cement, cement grid, plastic, glass steel and ceramic.

[0081] It can be understood that the cooling water is increased in temperature after being sprayed to the heat exchange coil 14 and exchanged with the heat exchange medium in the heat exchange coil 14. The increased-temperature cooling water drops to the filler and is exchanged with the filler to achieve the purpose of cooling the cooling water.

[0082] In an embodiment, the cooling device 1 further comprises a water quality detection device 16 configured to detect the water quality of the cooling water and generate a water quality detection result. The control device 30 is further configured to adjust the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 according to the water quality detection result.

[0083] For example, the water quality detection device 16 can be configured to detect at least one of the PH value, oxygen content, temperature, chloride ion content, oxidation-reduction potential, ammonia nitrogen content, fluoride concentration, phosphorus content, and sulfide content of the cooling water. More specifically, the water quality detection device 16 can comprise multiple measuring instruments for detecting different indicators.

[0084] According to the water quality detection result generated by the water quality detection device 16, a corresponding preset value range can be preset for different indicators, and different preset value ranges are preset with corresponding preset frequencies. According to the preset value range in which the detection value of each indicator corresponds, the electromagnetic wave excitation device 21 generates electromagnetic waves of the corresponding preset frequency, so as to realize the control of the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 according to the water quality detection result.

[0085] Through the above embodiment, the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 can be controlled to match the water quality according to the water quality of the cooling water, so as to automatically increase the frequency of the electromagnetic wave in the case that the water quality of the cooling water is poor, and improve the treatment effect on the cooling water.

[0086] In an embodiment, the cooling device 1 further comprises a fan 15. The fan 15 is arranged at the top of the tower body 10, and the fan 15 is configured to form an upward airflow in the tower body 10. The control device 30 is further configured to adjust the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 according to the rotating speed of the fan 15.

[0087] For example, the bottom and top of the tower body 10 are respectively provided with an air inlet and an air outlet, and the fan 15 is arranged at the air outlet. In the case that the fan 15 is working, an airflow is formed in the tower body 10 from bottom to top. Since there is a pressure difference between the water vapor surface and the air, the evaporation phenomenon is generated under the action of the pressure of the airflow, so as to take away the heat in the cooling water, i.e., evaporative heat transfer, to achieve the purpose of cooling the cooling water.

[0088] More specifically, the frequency of the electromagnetic wave generated by the excitation device is proportional to the rotational speed of the fan 15. That is, in the case where the rotational speed of the fan 15 is increased, the control device 30 controls the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 to be increased; in the case where the rotational speed of the fan 15 is decreased, the control device 30 controls the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 to be decreased.

[0089] It can be understood that, in the case where the rotational speed of the fan 15 is relatively large, the air flow rate flowing through the inside of the tower body 10 is increased, which leads to an increase in the contact amount between the cooling water and the air on the one hand and an increase in the degree of temperature change of the cooling water on the other hand, and thus the water quality change rate of the cooling water is increased. Therefore, in the case where the rotational speed of the fan 15 is increased, it is necessary to control the frequency of the electromagnetic wave to be increased so as to improve the effect on the cooling water.

[0090] Through the above embodiment, the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 is matched with the rotational speed of the fan 15, so that, in the case where the rotational speed of the fan 15 is increased, the electromagnetic wave excitation device 21 is controlled to increase the frequency of the electromagnetic wave, and thus the processing effect on the cooling water is improved.

[0091] In an embodiment, the frequency of the electromagnetic wave generated by the electromagnetic wave excitation device 21 ranges from 100 kHz to 10,000 kHz.

[0092] By controlling the frequency range of the electromagnetic wave to be in the low frequency range of 100 kHz to 10,000 kHz, on the one hand, the vibration energy and the rotation energy of the outer electrons of the water molecules are increased, and the activation energy of the cooling water is enhanced; on the other hand, the cooling water can be in the category of non-ionizing radiation, so that the radiation effect on the cooling water is not generated.

[0093] According to another aspect of the present disclosure, a heat exchange system for a data center is also provided, which comprises an indoor heat exchange device and the cooling device 1 according to the above embodiments of the present disclosure. The heat exchange medium circulates between the indoor heat exchange device and the cooling device 1.

[0094] The indoor heat exchange device has a heat exchange medium input end and a heat exchange medium output end. The heat exchange medium input end of the indoor heat exchange device is connected to the heat exchange medium output end of the cooling device 1, for receiving the heat exchange medium cooled by the cooling device 1, and then cooling the computer room of the data center by using the cooled heat exchange medium. The heat exchange medium is transported to the heat exchange medium input end of the cooling device 1 through the heat exchange medium output end of the indoor heat exchange device after being heated.

[0095] The indoor heat exchange device can adopt any form of heat exchange device, for example, various types of evaporators such as a circulating evaporator, a single-pass evaporator or a direct contact heat transfer type evaporator.

[0096] According to another aspect of the present disclosure, a data center is also provided, comprising the heat exchange system for data center according to the above-mentioned embodiments of the present disclosure.

[0097] The data center according to the embodiments of the present disclosure is beneficial to energy saving and emission reduction of the data center by using the heat exchange system according to the above-mentioned embodiments of the present disclosure, and has great environmental protection significance.

[0098] It should be noted that other configurations of the data center according to the embodiments of the present disclosure can use various technical solutions known and to be known by those skilled in the art, which are not described in detail here.

[0099] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present disclosure.

[0100] In addition, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of “plurality” is two or more, unless otherwise specifically limited.

[0101] In the present disclosure, unless otherwise specifically defined and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0102] In the present disclosure, unless specifically stated and limited otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of a first feature to a second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Under", "below" and "underneath" of a first feature to a second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0103] The above disclosure provides many different embodiments or examples for implementing different structures of the present disclosure. For simplicity of the present disclosure, the components and settings of certain examples are described so as to enable those skilled in the art to realize the present disclosure. Of course, they are only examples and are not intended to limit the present disclosure. In addition, the present disclosure can repeatedly refer to reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0104] The above detailed description does not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. Cooling apparatus, characterized in that The application relates to a cooling device for a cooling tower, comprising: a tower body for circulating cooling water used for cooling a heat exchange medium; a water treatment assembly arranged in the tower body, the water treatment assembly comprising an electromagnetic wave excitation device for generating electromagnetic waves and an electromagnetic wave transceiver device for transmitting the electromagnetic waves, wherein the transmission path of the electromagnetic waves passes through the cooling water; a control device configured to control the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to the circulation rate of the cooling water; an inner part of the tower body is provided with a water collecting tank, a spraying device is arranged above the water collecting tank, a circulating water pump is arranged between the water collecting tank and the spraying device, the circulating water pump is a water pump with adjustable flow, the circulation rate of the cooling water is determined by detecting the flow of the circulating water pump, and the circulating water pump is used for pumping the cooling water from the water collecting tank to the spraying device; the control device is further configured to adjust the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to the flow of the circulating water pump; the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device ranges from 100 kHz to 10,000 kHz.

2. Cooling device according to claim 1, characterized in that the electromagnetic wave transceiver device comprises a pair of transmitting units and receiving units, the transmitting units receive electromagnetic waves from the electromagnetic wave excitation device through signal cables, the transmitting units are used for emitting the electromagnetic waves generated by the electromagnetic wave excitation device, and the receiving units are used for receiving the electromagnetic waves emitted by the transmitting units; wherein the transmitting units are arranged on the bottom wall of the water collecting tank, and the receiving units are arranged on the side wall of the tower body and located above the liquid level of the cooling water in the water collecting tank.

3. Cooling device according to claim 1, characterized in that the water collecting tank is provided with a blowdown electromagnetic valve used for discharging the cooling water in the water collecting tank when the blowdown electromagnetic valve is opened; the control device is further configured to control the blowdown electromagnetic valve to be opened when the conductivity of the cooling water meets a preset value.

4. The cooling device of claim 1, wherein a plurality of electromagnetic wave transceiver devices are uniformly arranged in the circumferential direction of the water collecting tank.

5. The cooling device of claim 1, wherein Further comprising: a heat exchange coil arranged below the spraying device, the heat exchange coil being used for flowing the heat exchange medium.

6. The cooling device of claim 1, wherein Further comprising: a water quality detection device used for detecting the water quality of the cooling water and generating a water quality detection result; the control device is further configured to adjust the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to the water quality detection result.

7. The cooling device of claim 1, wherein Further comprising: a fan arranged at the top of the tower body, the fan being used for forming an upward airflow in the tower body; the control device is further configured to adjust the frequency of the electromagnetic waves generated by the electromagnetic wave excitation device according to the rotating speed of the fan.

8. A heat exchange system for a data center, comprising: The application further relates to an indoor heat exchange device and the cooling device according to any one of claims 1 to 7; wherein the heat exchange medium circulates between the indoor heat exchange device and the cooling device.

9. A data center, characterized by, The application further relates to a heat exchange system for a data center according to claim 8.

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