CN211953106U - Cooling system - Google Patents
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- CN211953106U CN211953106U CN202020107946.9U CN202020107946U CN211953106U CN 211953106 U CN211953106 U CN 211953106U CN 202020107946 U CN202020107946 U CN 202020107946U CN 211953106 U CN211953106 U CN 211953106U
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Abstract
The application discloses cooling system for the freezing scheme that the phenomenon of icing can not appear in cold environment can not increase the indoor humidity of data center again and can realize the cooling is provided. The cooling system includes: cooling the closed pipeline: the system is formed by connecting an outdoor cooler, a first circulating water pump and an indoor evaporator end to end through pipelines; circulating the medium: the circulating medium is positioned in the cooling closed pipeline and circulates in the cooling closed pipeline under the action of the first circulating water pump; outdoor cooler fan: used for accelerating the circulation speed of the air around the outdoor cooler; indoor evaporator fan: the indoor evaporator is used for accelerating the circulation speed of air around the indoor evaporator; and, a first evaporative cooling module: the first evaporative cooling module comprises a first spraying device, and the first spraying device does not spray air.
Description
Technical Field
The application relates to the technical field of refrigeration of data centers, in particular to a cooling system.
Background
Most cooling systems for cooling data centers all adopt cooling systems with spraying devices for energy conservation, the spraying devices utilize sprayed water to evaporate and refrigerate so as to take away environmental heat, and then cooling circulating media of the cooling systems, and the cooled circulating media flow into the data centers through pipelines so as to realize the cooling of the data centers. However, the cooling system of the start-up sprinkler has limited utility in low temperature environments, such as lower temperature environments throughout the year, or lower temperature winter environments due to seasonal variations. Because the low temperature environment spray system sprays water that has a low degree of evaporation, the sprayed water can also cause icing and heavy ice can damage the cooling system.
Currently, a special cooling system designed for cooling a data center is lacking in the market for low-temperature environments, such as environments with lower temperature throughout the year or environments with lower temperature in winter due to seasonal changes. If the data center is directly cooled by introducing cold air outside the data center, the data center equipment may be damaged due to the high humidity of the outdoor air, and this method has uncontrollable environment. Therefore, a freezing scheme which can not be frozen in a cold environment, can not increase the indoor humidity of the data center and can realize cooling is urgently needed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a cooling system for the freezing scheme that the phenomenon of icing can not appear in cold environment, can not increase the indoor humidity of data center again and can realize the cooling is provided.
An embodiment of the present application provides a cooling system, including:
cooling the closed pipeline: the system is formed by connecting an outdoor cooler, a first circulating water pump and an indoor evaporator end to end through pipelines;
circulating the medium: the circulating medium is positioned in the cooling closed pipeline, and the circulating medium circulates in the cooling closed pipeline under the action of the first circulating water pump;
outdoor cooler fan: for increasing the speed of air circulation around the outdoor cooler;
indoor evaporator fan: the indoor evaporator is used for accelerating the circulation speed of air around the indoor evaporator; and the number of the first and second groups,
a first evaporative cooling module: the first evaporative cooling module comprises a first spraying device, and the first spraying device does not spray air.
Preferably, the first evaporative cooling module further comprises: the cooling device comprises a cooling shell, a filler, a first water tray, a second circulating water pump and a pipeline;
the filler is arranged in the cooling shell, and the outdoor cooler fan drives air to pass through the filler and then the outdoor cooler when in operation; the first water tray is arranged below the filler and used for collecting cooling water falling when the first spraying device sprays the filler, and the first water tray is connected with a water inlet of the second circulating water pump through a pipeline; the water outlet of the second circulating water pump is connected with the first spraying device through a pipeline; the pipeline of the first evaporative cooling module is filled with cooling water, and the first spraying device is used for spraying the cooling water in the pipeline to the filler.
Preferably, the air inlet of the first evaporative cooling module is further provided with a second evaporative cooling module;
the second evaporative cooling module includes: the evaporative cooling heat exchanger, a second spraying device, a second fan, a third circulating water pump and a second water tray; the evaporative cooling heat exchanger is arranged at an air inlet of the outdoor cooler fan, and the outdoor cooler fan drives air to pass through the dry side of the evaporative cooling heat exchanger and then pass through the filler when running; the air inlet of the second fan is arranged on the wet side of the evaporative cooling heat exchanger; the second spraying device is used for spraying cooling water to the wet side of the evaporative cooling heat exchanger; the second water tray is arranged below the wet side of the evaporative cooling heat exchanger and used for collecting cooling water sprayed on the wet side of the evaporative cooling heat exchanger, and the third circulating water pump is used for driving the cooling water in the second water tray to flow out of the second spraying device.
Preferably, a check valve for allowing the circulating medium to flow from the circulating water pump to the outdoor cooler and preventing the circulating medium flowing from the indoor evaporator to the outdoor cooler from flowing from the outdoor cooler to the indoor evaporator is further included between the circulating water pump and the outdoor cooler.
Preferably, the number of the circulating water pumps is multiple, the multiple circulating water pumps are arranged in parallel, and each circulating water pump arranged in parallel is provided with a one-way valve in series.
Preferably, the parallel circulating water pumps are connected in parallel with the cooling closed pipeline through switching water valves.
Preferably, the method further comprises the following steps: and the supplementary refrigeration module is arranged between the outdoor cooler and the indoor evaporator and is used for supplementary cooling of circulating media from the outdoor cooler to the indoor evaporator.
Preferably, the supplementary cooling module comprises: mechanical refrigeration condenser, mechanical refrigeration condenser fan, mechanical refrigeration compressor, evaporimeter, throttling arrangement, refrigeration pipeline and refrigeration medium, mechanical refrigeration condenser mechanical refrigeration compressor the evaporimeter throttling arrangement passes through refrigeration pipeline end to end connection forms refrigeration closed tube way, the refrigeration medium is in the refrigeration closed tube way, the refrigeration medium is in mechanical refrigeration compressor effect is in refrigeration closed tube way inner loop, mechanical refrigeration condenser fan is used for accelerating circulation of air speed around the mechanical refrigeration condenser.
Preferably, the mechanical refrigeration condenser comprises: air-cooled condensers, water-cooled condensers or evaporative condensing condensers.
Preferably, the evaporator includes: plate evaporators or shell evaporators.
Preferably, a switching water valve is further disposed between the supplementary refrigeration module, the outdoor cooler and the indoor evaporator, and the switching water valve is configured to control the circulating medium to flow from the outdoor cooler into the supplementary refrigeration module or into the indoor evaporator.
Preferably, the switching water valve comprises an electrically operated valve.
According to the technical scheme, the embodiment of the application has the following advantages:
the cooling system of this application includes outdoor cooler, outdoor cooler fan, first circulating water pump, indoor evaporimeter fan, the pipeline, circulating medium and first evaporative cooling module, outdoor cooler, first circulating water pump and indoor evaporimeter pass through pipeline end to end connection and form the cooling closed tube way, circulating medium is located the cooling closed tube way, circulating medium circulates at the closed tube way inner loop under first circulating water pump's effect, outdoor cooler fan is used for accelerating outdoor cooler circulation of air speed around, indoor evaporimeter fan is used for accelerating indoor evaporimeter circulation of air speed around, first evaporative cooling module is used for right carry out the precooling to the air through outdoor cooler under outdoor cooler's the effect of outdoor cooler fan, first evaporative cooling module includes first spray set, this first spray set does not spray. Because the outdoor environment temperature is lower, the circulating medium can be directly cooled under the action of the fan of the outdoor cooler, the cooled circulating medium exchanges heat with the inside of the data center when flowing into the indoor evaporator, so that the temperature of the data center is reduced, the circulating medium with the increased temperature after heat exchange flows to the outdoor cooler under the action of the circulating water pump to be cooled with the external environment, and the circulation is carried out. Because cooling system's of this application spray set does not spray, has avoided appearing causing the phenomenon that water sprays to freeze, the circulating medium of this application is sealed in the closed line, and the circulating medium after the cooling can not increase data center's humidity when cooling for data center.
Drawings
FIG. 1 is a schematic structural diagram of a cooling system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a cooling system according to another embodiment of the present application.
Detailed Description
The embodiment of the application provides a cooling system for providing a freezing scheme that icing phenomenon can not appear in cold environment, indoor humidity of a data center can not be increased, and cooling can be realized.
Referring to fig. 1, an embodiment of the cooling system provided herein is illustrated that the freezing temperature of the circulating medium of the following embodiment is preferably lower than the ambient temperature of the outdoor cooler 110, such as a glycol solution. The embodiment comprises the following steps:
the outdoor cooler 110, the outdoor cooler fan 120, the first water circulating pump 210, the indoor evaporator 310, the indoor evaporator fan 320, the pipeline, the circulating medium and the first evaporative cooling module 130 are connected end to end through the pipeline to form a cooling closed pipeline, the circulating medium is located in the cooling closed pipeline, and the circulating medium circulates in the cooling closed pipeline under the action of the water circulating pump 210.
In this embodiment, the outdoor cooler 110 is installed in an outdoor environment of the data center, the outdoor cooler fan 120 is installed in a manner adapted to the outdoor cooler 110, the cooling system of the embodiment of the present application can be applied to a scene/season in which the outdoor environment temperature is lower than the indoor temperature of the data center, the indoor evaporator 310 is installed in the data center, the indoor evaporator fan 320 is installed in a manner adapted to the indoor evaporator 310, and the circulating water pump 210 can be installed outdoors or indoors of the data center, which is not particularly limited herein.
The outdoor cooler fan 120 is used for increasing the circulation speed of the air around the outdoor cooler, the air generated by the outdoor cooler fan 120 can increase the circulation speed of the air around the outdoor cooler 110, the faster air flow can accelerate the heat removal of the outdoor cooler 110, and further lower the temperature of the circulating medium in the outdoor cooler 110, so that the temperature of the circulating medium flowing to the indoor evaporator 310 under the action of the circulating pump 210 is lower, and the cooling effect in the data center is further enhanced. The cooling system is provided with an indoor evaporator fan 320 for increasing the circulation speed of the air around the indoor evaporator 310, the circulation speed of the air around the indoor evaporator 310 can be increased by the wind generated by the indoor evaporator fan 320, the heat exchange between the indoor environment of the data center and the indoor evaporator 310 can be accelerated by the faster air flow, so that the circulating medium exchanges heat with more indoor air of the data center in the limited pipe stroke and limited stroke time of circulating to the indoor evaporator 310, the heat exchange efficiency of the circulating medium and the indoor air of the data center is further improved, the circulating medium flowing to the outdoor cooler 110 under the action of the circulating pump 210 is subjected to sufficient heat exchange, and the cooling utilization efficiency of the circulating medium in the data center is further improved.
The cooling system of the application comprises an outdoor cooler 110, an outdoor cooler fan 120, a first circulating water pump 210, an indoor evaporator 310, an indoor evaporator fan 320, a pipeline, a circulating medium and a first evaporative cooling module 130, wherein the outdoor cooler 110, the first circulating water pump 210 and the indoor evaporator 310 are connected end to end through the pipeline to form a cooling closed pipeline, the circulating medium is located in the cooling closed pipeline, the circulating medium circulates in the closed pipeline under the action of the first circulating water pump 210, the outdoor cooler fan 120 is used for accelerating the circulation speed of air around the outdoor cooler 110, the indoor evaporator fan 320 is used for accelerating the circulation speed of air around the indoor evaporator 310, the first evaporative cooling module 130 comprises a first spraying device 131, and in the embodiment, the first spraying device 131 does not spray. Since the outdoor environment temperature is low, the circulating medium can be directly cooled under the action of the outdoor cooler fan 120, the cooled circulating medium exchanges heat with the environment in the data center when flowing into the indoor evaporator 310, so as to reduce the temperature of the environment in the data center, and the circulating medium with the increased temperature after heat exchange flows to the outdoor cooler under the action of the circulating water pump 210 to be cooled with the external environment, and the circulation is performed in this way. Because cooling system's of this application spray set does not spray, has avoided appearing causing the phenomenon that water sprays to freeze, the circulating medium of this application is sealed in the closed line, and the circulating medium after the cooling can not increase data center's humidity when cooling for data center.
For ease of understanding, another embodiment of the cooling system provided herein is described below. The following embodiments of the cooling system are suitable for further applications in the transition season or summer, and referring to fig. 2, the cooling system of the following embodiments may include, in addition to having the above-described mechanism:
the first evaporative cooling module 130', includes: cooling shell 132, first spray device 131', filler 133, first water tray 134, second circulating water pump 135, pipeline. The filler 133 is arranged in the cooling shell 132, and when the outdoor cooler fan 120 runs, the air is driven to pass through the filler 133 and then pass through the outdoor cooler 132; the first water tray 134 is arranged below the filler 133 and used for collecting cooling water falling when the first spraying device 131' sprays the filler, and the first water tray 134 is connected with a water inlet of the second circulating water pump 135 through a pipeline; the water outlet of the second circulating water pump 135 is connected with a first spraying device 131' through a pipeline; the first evaporative cooling module 130 'is filled with cooling water in the pipe, and the first spray device 131' is used for spraying the cooling water in the pipe to the filler 133.
Further, the first evaporative cooling module 130' may further include a heat exchanger 136 and a water baffle 137. The packing 133 is disposed in the cooling housing 132, the outdoor cooler fan 120 drives air to pass through the packing 133 and then pass through the outdoor cooler 110, the first spraying device 131 ' is connected to the water outlet on the low-temperature side of the heat exchanger 136 through a pipeline, as shown in fig. 2, the left side of the heat exchanger 136 represents the low-temperature side, the pipeline is filled with cooling water, the first spraying device 131 ' is used for spraying the cooling water in the pipeline to the packing 133, the first water tray 134 is disposed below the packing 133 and connected to the water inlet on the low-temperature side of the heat exchanger 136 through a pipeline, as shown in fig. 2, the right side of the heat exchanger 136 represents the high-temperature side, the second circulating water pump 135 is disposed between the first water tray 134 and the water inlet on the low-temperature side of the heat exchanger 136, the second circulating water pump 135 is used for providing power for spraying the cooling water of the first spraying device 131 ', the liquid inlet on the high-temperature side of the heat, the liquid outlet of the high-temperature side of the heat exchanger 136 is connected with the indoor evaporator through a pipeline.
In operation, the cooling water is used for cooling the circulating medium in the cooling sealing pipeline and then is heated, then flows out of the first spraying device 131' and is sprayed on the filler 133, and after being sprayed on the filler 133, the cooling water has a large contact area with air so as to be convenient for evaporation. When the outdoor cooler fan 120 is operated, the outside air is sucked into the first evaporative cooling module 130', and the temperature of the remaining cooling water that is not evaporated is lowered by using the principle of heat absorption by water evaporation while passing through the packing 133, and the temperature of the sucked outside air is also lowered at the same time. The first water tray 134 disposed under the packing 133 collects the remaining cooling water that is not evaporated and has a reduced temperature, and re-injects the collected cooling water into the heat exchanger 136 by the second circulating water pump 135 through a pipe connected to the first water tray 134, where the cooling water exchanges heat with the circulating medium at the other end in the heat exchanger 136. Meanwhile, when the external air passes through the filler 133, the temperature of the external air is also reduced due to the heat absorption of partial cooling water by evaporation, and the external air passes through the outdoor cooler 110 under the action of the fan 120 of the outdoor cooler, so that the temperature of the circulating medium in the outdoor cooler 110 is reduced, and compared with the case that the outdoor air is directly used for cooling the outdoor cooler 110, the temperature of the external air passing through the first evaporative cooling module is lower, and the cooling effect on the outdoor cooler 110 is better. In other words, in the cooling system provided in the embodiment of the present application, the outdoor cooler may utilize an air cooling source of evaporative cooling to pre-cool the circulating medium flowing into the indoor evaporator, and then the outdoor cooling water cools the circulating medium through the heat exchanger. Therefore, the cooling system provided by the embodiment of the application can fully utilize a natural cold source to pre-cool the circulating medium flowing into the indoor evaporator. The first evaporative cooling module 130 ' further has a water baffle 137 therein, and the water baffle 137 is disposed between the outdoor cooler 110 and the first spraying device 131 ' and is used for blocking water vapor flowing from the first evaporative cooling module 130 through the outdoor cooler 110 under the action of the outdoor cooler fan 120, so as to reduce the cooling water loss of the first evaporative cooling module 130 '.
As a specific improvement to the above, the first evaporative cooling module may adopt a cross-flow structure or a counter-flow structure. When the cross-flow structure is adopted, cooling water sprayed onto the filler 133 drops downward, the air flow sucked into the first evaporative cooling module transversely flows through the filler 133, and the air flow meets the water flow orthogonally. With the counter-flow configuration, the airflow drawn into the first evaporative cooling module passes through the packing 133 from the bottom up. When the cross-flow structure is adopted, the airflow resistance is small, the power consumption of the outdoor cooler fan 120 is small, and the noise is small. When a counter-flow structure is adopted, the evaporation effect on cooling water is better, and more heat is taken away. Two configurations may alternatively be used.
Further, a second evaporative cooling module 140 is further disposed at the air inlet of the first evaporative cooling module 130', and the second evaporative cooling module 140 includes: an evaporative cooling heat exchanger 143, a second spraying device 142, a second fan 141, a third circulating water pump 144 and a second water tray 145; the evaporative cooling heat exchanger 143 is arranged at an air inlet of the outdoor cooler fan 120, and the outdoor cooler fan 120 drives air to pass through the dry side of the evaporative cooling heat exchanger 143 and then pass through the filler 133 during operation; the air inlet of the second fan 141 is arranged at the wet side of the evaporative cooling heat exchanger 143; the second spraying device 142 is used for spraying cooling water to the wet side of the evaporative cooling heat exchanger 143; the second water tray 145 is disposed below the wet side of the evaporative cooling heat exchanger 143 to collect the cooling water sprayed on the wet side of the evaporative cooling heat exchanger 143, and the third circulating water pump 144 is configured to drive the cooling water in the second water tray 145 to flow out of the second spraying device 142.
The second evaporative cooling module is only used for absorbing heat through evaporation of water and precooling air entering the first evaporative cooling module, so that the temperature of the air flowing through the filler 203 and the outdoor evaporative cooler 101 is lower, and the utilization efficiency of a natural cold source is further improved. In addition, the second evaporative cooling module precools the air entering the first evaporative cooling module, so that the temperature of the cooling water in the first evaporative cooling module is lower, and the cooling effect of the cooling water is improved.
The specific working principle of the second evaporative cooling module is that the evaporative cooling heat exchanger 143 is arranged, so that outdoor air firstly passes through the dry side of the evaporative cooling heat exchanger 143, meanwhile, the second spraying device 142 sprays cooling water to the wet side of the evaporative cooling heat exchanger 143, the second fan 142 is used for driving the air to pass through the wet side of the evaporative cooling heat exchanger 143, partial cooling water is evaporated, the temperature of the cooling water in the second evaporative cooling module is reduced, and the humidity and the temperature of the air flow passing through the dry side of the evaporative cooling heat exchanger 143 are kept unchanged and reduced under the condition that the air flow does not contact the cooling water, so that the cooling effect of the first evaporative cooling module and the outdoor cooler 110 is enhanced.
In practical applications, besides the above structure, the method may further include: outdoor temperature sensor, the circulating pump controller, this outdoor temperature sensor settles outdoor with data center, a temperature for detecting outdoor environment, this outdoor temperature sensor links to each other with this circulating pump controller, and in time give circulating pump controller with the outdoor ambient temperature signal transmission that detects, this circulating pump controller storage has predetermined temperature range, circulating pump controller judges whether this outdoor ambient temperature information is within predetermined temperature range, if this outdoor ambient temperature signal falls into circulating pump controller storage and has within predetermined temperature range (or outside), then this circulating pump controller sends the control command who stops (or operate) to the second circulating pump, so that the first spray set of first evaporative cooling module in this application does not spray (or realizes spraying). When the second circulating water pump is started to realize the spraying of the first spraying device of the first evaporative cooling module, the spraying device is generally applicable to the situation that the sprayed cooling water cannot be frozen.
A check valve 220 may be provided between the circulation water pump 210 and the outdoor cooler 110, and the check valve 220 serves to allow the circulation medium to flow from the circulation water pump 210 to the outdoor cooler 110 to prevent the circulation medium flowing from the indoor evaporator 310 to the outdoor cooler 110 from flowing from the outdoor cooler 110 to the indoor evaporator 310. The added one-way conduction function of the one-way valve 220 can prevent the circulating medium with higher temperature flowing out of the indoor evaporator 310 from flowing back to the data center when the circulating water pump 210 stops running, and the reliability of the cooling closed pipeline on the refrigeration in the data center room is improved.
A supplementary cooling module 230 may be further provided in the cooling system, the supplementary cooling module 230 being disposed between the outdoor cooler 110 and the indoor evaporator 310, or the supplementary cooling module 230 being disposed between the heat exchanger 136 and the indoor evaporator 310, for supplementary cooling of the circulating medium entering the indoor evaporator 310. For example, the supplementary cooling module 230 is disposed between the cooling closed pipes through which the circulating medium flows from the outdoor cooler 110 to the indoor evaporator 310, and is designed to further supplement cooling for the circulating medium in the pipes, so as to obtain a circulating medium with a lower temperature, and thus to make the circulating medium entering the indoor space of the data center have a stronger cooling capability, where the supplementary cooling module 230 should have a cooling capability with a lower temperature than the ambient temperature of the outdoor cooler 110, and is preferably a temperature-adjustable supplementary cooling module 230, so as to meet different cooling requirements of the data center. The supplementary refrigeration module that disposes in the cooling system of this application only does partial supplementary cooling for cooling system, need not give each computer lab allotment of data center, reduces the initial investment and the distribution capacity of entire system.
The supplementary cooling module 230 provided in the cooling system specifically includes: the mechanical refrigeration condenser 231, the mechanical refrigeration condenser fan 240, the mechanical refrigeration compressor 232, the evaporator 233, the throttling device 234, the refrigeration pipeline and the refrigeration medium, wherein the mechanical refrigeration condenser 231, the mechanical refrigeration compressor 232, the evaporator 233 and the throttling device 234 are connected end to end through the refrigeration pipeline to form a refrigeration closed pipeline, the refrigeration medium is in the refrigeration closed pipeline, and the refrigeration medium circulates in the refrigeration closed pipeline under the action of the mechanical refrigeration compressor 232. In this embodiment, specifically, the circulating medium to be flowed from the outdoor cooler 110 to the indoor evaporator 310 is introduced into the evaporator 233 of the supplementary cooling module 230, and the circulating medium exchanges heat with the cooling medium with a lower temperature in the evaporator 233 to obtain the circulating medium with a lower temperature. The supplementary cooling module 230 of this step operates such that the cooling medium circulates in the cooling closed circuit under the action of the mechanical cooling compressor 231, and the process of the cooling medium circulating in the cooling closed circuit is as follows: the refrigerant with the temperature increased by the heat exchange between the evaporator 233 and the circulating medium flows to the mechanical refrigeration condenser 231 to be condensed and cooled under the action of the mechanical refrigeration compressor 232, and the refrigerant after being cooled is changed into a low-temperature and low-pressure refrigerant through the throttling device 234, so that the low-temperature and low-pressure refrigerant is more favorable for absorbing the temperature of the circulating medium when flowing through the evaporator 233, and further completes the heat exchange with the circulating medium. It should be noted that the circulating medium in the evaporator 233 is indirectly heat exchanged with the evaporator 233 of the supplementary cooling module 230, the circulating medium is always in the cooling closed pipeline, the cooling medium is also always in the cooling closed pipeline, the circulating medium is not doped into the cooling medium, and the cooling medium is not doped into the circulating medium. More specifically, the pipe of the circulating medium and the refrigeration pipe of the refrigeration medium are in indirect heat exchange in a container with good heat-conducting liquid medium, at this time, the container with good heat-conducting liquid medium can be regarded as an evaporator 233, the heat of the circulating medium is transmitted to the heat-conducting liquid medium of the container through the pipe wall, and is transmitted to the refrigeration pipe wall of the refrigeration medium through the heat-conducting liquid medium, and then is transmitted to the refrigeration medium through the refrigeration pipe wall; the refrigerating process of the circulating medium by the refrigerating medium is opposite to the path of transmitting the heat of the circulating medium to the refrigerating medium, and details are not repeated. Note that, in the present embodiment, the heat conductivity of the pipe for heat exchange in the evaporator 233 is better, and the heat conductivity of the pipe or the refrigerant pipe for outdoor transmission is better. Specifically, the mechanical refrigeration condenser 231 of the present embodiment may be an air-cooled condenser, a water-cooled condenser or an evaporative condensation condenser. Specifically, the evaporator 233 of the present embodiment may be a plate evaporator or a shell-and-tube evaporator.
In the cooling system there is a mechanical refrigeration condenser fan 240 for increasing the speed of air circulation around the mechanical refrigeration condenser 231. The air generated by the mechanical refrigeration condenser fan 240 can accelerate the air circulation speed around the mechanical refrigeration condenser 231, and the faster air flow can accelerate the cooling of the mechanical refrigeration condenser 231 to the refrigeration medium, so that the refrigeration medium can be cooled more quickly, the temperature of the refrigeration medium in the refrigeration pipeline is effectively further reduced, the temperature of the refrigeration medium flowing to the evaporator 233 under the action of the mechanical refrigeration compressor 232 is lower, and the cooling efficiency of the circulation medium is further improved by the refrigeration medium at the lower temperature in the evaporator 233.
A switching water valve 250 is further disposed between the supplementary cooling module 230, the outdoor cooler 110 and the indoor evaporator 310, and the switching water valve 250 is used to control the circulating medium to flow from the outdoor cooler 110 to the supplementary cooling module 230 or to flow to the indoor evaporator 310. The switching water valve 250 added in this embodiment can control whether the circulating medium flows into the supplementary cooling module 230, so as to meet the use scenario that the supplementary cooling module 230 does not need to participate in cooling, and reduce the water pipe stroke of the circulating medium flowing into the supplementary cooling module 230, so as to reduce the energy loss of the circulating medium. If the supplementary refrigeration module 230 is needed to participate in the refrigeration usage scenario, the switching water valve 250 is switched again to allow the circulating medium to flow into the supplementary refrigeration module 230, and the supplementary refrigeration module 230 is started. More specifically, the water valve 250 is switched to be an electric valve, so that automatic control is realized, and the labor cost is reduced; furthermore, the switching signal of the electric valve can be correlated with the starting signal of the supplementary mechanical refrigeration, that is, the signal of the electric valve switching circulating medium accessing the supplementary refrigeration module 230 is correlated with the starting signal of the supplementary mechanical refrigeration, so that the electric valve switching circulating medium accessing the supplementary refrigeration module 230 is realized, that is, the supplementary mechanical refrigeration is started.
In order to further ensure that the cooling closed pipeline of the cooling system can cope with sudden failures of the circulating water pumps 210, two or more circulating water pumps 210 may be arranged in parallel in the cooling closed pipeline, and two or more check valves 220 are arranged in series with each circulating water pump 210, when a plurality of parallel circulating water pumps 210 are arranged, a switching water valve may be further arranged at a branch point of the cooling closed pipeline, so as to control the flow direction of a circulating medium in the cooling closed pipeline, of course, the switching water valve here may also be an electric valve, and a specified cooling closed pipeline switching signal of the electric valve may be associated with a starting signal of the circulating water pump 210 of the specified cooling closed pipeline, so as to realize control of the electric valve to switch the specified cooling closed pipeline and start the circulating water pump of the specified cooling pipeline.
Similarly, there may be more than one outdoor cooler 110 to increase the cooling efficiency of the circulating medium in the cooling closed water pipe; the number of the outdoor cooler fans 120 can be multiple, so that the cooling speed of the outdoor cooler is increased; indoor evaporimeter 310 also can be a plurality of, increases data center cooling rate, and it should be noted that, each module that has the function of this application all can carry out adjustment in quantity according to actual need, and it is no longer repeated here.
The above description of the present application with reference to specific embodiments is not intended to limit the present application to these embodiments. For those skilled in the art to which the present application pertains, several changes and substitutions may be made without departing from the spirit of the present application, and these changes and substitutions should be considered to fall within the scope of the present application.
Claims (10)
1. A cooling system, comprising:
cooling the closed pipeline: the system is formed by connecting an outdoor cooler, a first circulating water pump and an indoor evaporator end to end through pipelines;
circulating the medium: the circulating medium is positioned in the cooling closed pipeline, and the circulating medium circulates in the cooling closed pipeline under the action of the first circulating water pump;
outdoor cooler fan: for increasing the speed of air circulation around the outdoor cooler;
indoor evaporator fan: the indoor evaporator is used for accelerating the circulation speed of air around the indoor evaporator; and the number of the first and second groups,
a first evaporative cooling module: the first evaporative cooling module comprises a first spraying device, and the first spraying device does not spray air.
2. The cooling system of claim 1, wherein the first evaporative cooling module further comprises: the cooling device comprises a cooling shell, a filler, a first water tray, a second circulating water pump and a pipeline;
the filler is arranged in the cooling shell, and the outdoor cooler fan drives air to pass through the filler and then the outdoor cooler when in operation; the first water tray is arranged below the filler and used for collecting cooling water falling when the first spraying device sprays the filler, and the first water tray is connected with a water inlet of the second circulating water pump through a pipeline; the water outlet of the second circulating water pump is connected with the first spraying device through a pipeline; the pipeline of the first evaporative cooling module is filled with cooling water, and the first spraying device is used for spraying the cooling water in the pipeline to the filler.
3. The cooling system of claim 2, wherein the air inlet of the first evaporative cooling module is further provided with a second evaporative cooling module;
the second evaporative cooling module includes: the evaporative cooling heat exchanger, a second spraying device, a second fan, a third circulating water pump and a second water tray; the evaporative cooling heat exchanger is arranged at an air inlet of the outdoor cooler fan, and the outdoor cooler fan drives air to pass through the dry side of the evaporative cooling heat exchanger and then pass through the filler when running; the air inlet of the second fan is arranged on the wet side of the evaporative cooling heat exchanger; the second spraying device is used for spraying cooling water to the wet side of the evaporative cooling heat exchanger; the second water tray is arranged below the wet side of the evaporative cooling heat exchanger and used for collecting cooling water sprayed on the wet side of the evaporative cooling heat exchanger, and the third circulating water pump is used for driving the cooling water in the second water tray to flow out of the second spraying device.
4. The cooling system according to claim 1, further comprising a check valve between the circulation water pump and the outdoor cooler, the check valve being configured to allow the circulation medium to flow from the circulation water pump to the outdoor cooler and to prevent the circulation medium flowing from the indoor evaporator to the outdoor cooler from flowing from the outdoor cooler to the indoor evaporator.
5. The cooling system according to any one of claims 1 to 4, further comprising: and the supplementary refrigeration module is arranged between the outdoor cooler and the indoor evaporator and is used for supplementary cooling of circulating media from the outdoor cooler to the indoor evaporator.
6. The cooling system of claim 5, wherein the supplemental refrigeration module comprises: mechanical refrigeration condenser, mechanical refrigeration condenser fan, mechanical refrigeration compressor, evaporimeter, throttling arrangement, refrigeration pipeline and refrigeration medium, mechanical refrigeration condenser mechanical refrigeration compressor the evaporimeter throttling arrangement passes through refrigeration pipeline end to end connection forms refrigeration closed tube way, the refrigeration medium is in the refrigeration closed tube way, the refrigeration medium is in mechanical refrigeration compressor effect is in refrigeration closed tube way inner loop, mechanical refrigeration condenser fan is used for accelerating circulation of air speed around the mechanical refrigeration condenser.
7. The cooling system of claim 6, wherein the mechanical refrigeration condenser comprises: air-cooled condensers, water-cooled condensers or evaporative condensing condensers.
8. The cooling system of claim 6, wherein the evaporator comprises: plate evaporators or shell evaporators.
9. The cooling system of claim 6, further comprising a switching water valve disposed between the supplementary refrigeration module, the outdoor cooler, and the indoor evaporator, the switching water valve configured to control the circulating medium to flow from the outdoor cooler to the supplementary refrigeration module or to the indoor evaporator.
10. The cooling system of claim 9, wherein the switching water valve comprises an electrically operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020107946.9U CN211953106U (en) | 2020-01-17 | 2020-01-17 | Cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020107946.9U CN211953106U (en) | 2020-01-17 | 2020-01-17 | Cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944739A (en) * | 2021-04-15 | 2021-06-11 | 广东海悟科技有限公司 | Double-circulation refrigeration system using dew point temperature for cooling and control method thereof |
| CN114353218A (en) * | 2021-12-31 | 2022-04-15 | 深圳市英维克科技股份有限公司 | Composite evaporative cooling water chilling unit, control method and device thereof, and storage medium |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944739A (en) * | 2021-04-15 | 2021-06-11 | 广东海悟科技有限公司 | Double-circulation refrigeration system using dew point temperature for cooling and control method thereof |
| CN114353218A (en) * | 2021-12-31 | 2022-04-15 | 深圳市英维克科技股份有限公司 | Composite evaporative cooling water chilling unit, control method and device thereof, and storage medium |
| CN114353218B (en) * | 2021-12-31 | 2024-01-02 | 深圳市英维克科技股份有限公司 | Composite evaporative cooling water chilling unit, control method and device thereof and storage medium |
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