CN218096356U - Indirect evaporative cooling system, air conditioning unit, water chilling unit and data center - Google Patents

Abstract

The cooling system comprises a heat exchange module and a humidification module, wherein the heat exchange module comprises a first core body, a first channel for circulating gas to be cooled is arranged in the first core body, and a second channel for allowing air to flow through and exchange heat with the gas to be cooled is arranged outside the first core body; the humidifying module is arranged outside the heat exchange module and located at the upstream of the second inlet of the second channel so as to humidify and cool the air flowing to the second channel. Through the technical scheme, the indirect evaporative cooling system can reduce the scaling on the surface of the heat exchange core body, thereby reducing the maintenance cost of the unit and prolonging the service life of the unit.

Description

Indirect evaporative cooling system, air conditioning unit, water chilling unit and data center

Technical Field

The disclosure relates to the field of data center refrigeration, in particular to an indirect evaporative cooling system, an air conditioning unit, a water chilling unit and a data center.

Background

The indirect evaporative cooling air conditioning unit is increasingly used by a data center due to energy conservation, and mainly utilizes the process that outside air can indirectly cool down hot air generated by long-time work of the data center in the data center, in the practical application process, the outside air can rise along with the rise of outdoor temperature, therefore, in order to ensure better cooling performance of the unit, in the related technology, a water spraying evaporative cooling mode is generally adopted, namely, cooling water is directly sprayed on the surface of a heat exchange core body of the unit for cooling down, however, the cooling water can generate scale and adhere to the surface of the heat exchange core body in the process of evaporating the surface of the heat exchange core body, so that the operation and maintenance workload is larger, and if the maintenance operations such as scale removal and cleaning are not in place, the heat exchange efficiency of the heat exchange core body of the unit can be seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide an indirect evaporative cooling system, an air conditioning unit, a water chilling unit, and a data center, which can alleviate the generation of scale on the surface of a heat exchange core to partially solve the above-mentioned problems in the related art.

To achieve the above object, a first aspect of the present disclosure provides an indirect evaporative cooling system, the cooling system including: the heat exchange module comprises a first core, wherein a first channel for circulating gas to be cooled is arranged in the first core, and a second channel for allowing air to flow through to exchange heat with the gas to be cooled is arranged outside the first core; and the humidifying module is arranged outside the heat exchange module and positioned at the upstream of the second inlet of the second channel so as to humidify and cool the air flowing to the second channel.

Optionally, the humidifying module comprises a wet film and a first spraying assembly, the wet film is shielded at the upstream of the second inlet of the second channel, and the first spraying assembly is positioned above the wet film to spray the wet film with cooling water.

Optionally, the indirect evaporative cooling system further comprises a water collection tank located below the wet film, the water collection tank having a water collection port located at the top, a first water supply port communicated with the water inlet of the first spray assembly through a first water supply pipeline, a water replenishment port, and a water discharge port.

Optionally, the first spraying assembly includes a first water distributor, the first water distributor has a first main pipe for communicating with the first water supply pipeline and a plurality of first branch pipes communicating with the first main pipe, and a first spray head is disposed at a water outlet of each of the plurality of first branch pipes.

Optionally, a first driving pump and a first control valve are further disposed on the first water supply pipeline.

Optionally, the heat exchanger further comprises a second spraying assembly located above the heat exchange module, a water inlet of the second spraying assembly is communicated with a second water supply port of the water collecting tank through a second water supply pipeline, a second driving pump and a second control valve are arranged on the second water supply pipeline, and the water collecting port of the water collecting tank is provided with an extension portion extending to the lower portion of the heat exchange module.

Optionally, the second spraying assembly comprises a second water distributor, the second water distributor is provided with a second main pipe communicated with the second water supply pipeline and a plurality of second branch pipes communicated with the second main pipe, and second nozzles are arranged at water outlets of the plurality of second branch pipes.

Optionally, heat exchange module includes the casing, the interval is provided with a plurality ofly in the casing first core, and is adjacent clearance department between the first core is provided with the second core, the outer wall of second core respectively with adjacent two the outer wall laminating of first core, and inside has seted up the second passageway, the first passageway with the direction mutually perpendicular of second passageway sets up, and the first passageway has and is used for supplying treat the first import that cooling gas got into and supply the first export of the gaseous outflow after the heat transfer, the second passageway has and is used for supplying the second import that the air after the humidification cooling got into and the second export that supplies the air after the heat transfer to discharge.

The second aspect of the present disclosure further provides an air conditioning unit, including a first blower having a first air inlet and a first air outlet, and further including the indirect evaporative cooling system as described above, wherein the first channel is communicated between the first air inlet and the first air outlet.

The third aspect of the present disclosure further provides a water chilling unit, including a second blower having a second air inlet and a second air outlet, and a cooling tower communicating with a second air outlet of the second blower, and further including the indirect evaporative cooling system as described above, wherein the first channel is communicated between the second air inlet and the second air outlet.

The fourth aspect of the present disclosure further provides a data center, which includes a data machine room, and further includes the air conditioning unit as described above, a first blower of the air conditioning unit is located in the data machine room, and/or further includes the water chilling unit as described above, a second blower and the cooling water tower are arranged in the data machine room.

Through the technical scheme, promptly this disclosure provides indirect evaporative cooling system, this cooling system sets up the humidification module through the outside at heat exchange module and the upper reaches department that is located the second import of heat exchange module's second passageway, thereby can carry out the humidification cooling to the air that flows to this second passageway through this humidification module, further air after the humidification cooling is sent into in the second passageway and carries out the heat exchange with the gas of treating cooling in the first core, and then realize treating the cooling of cooling gas in the heat exchange module, energy-conservation nature is higher. In addition, compare in the correlation technique and carry out cooling through the mode of directly spraying cooling water to heat exchange module's core surface, it is obvious this disclosure through set up the humidification module in heat exchange module's outside, and carry out the humidification cooling back through this humidification module and wait that the gas carries out the heat exchange with the inside of heat exchange module's first core in continuation and treat the cooling gas and carry out cooling's mode indirectly, can be better avoid cooling water and the high temperature surface large tracts of land contact of heat exchange module's core, in order to do benefit to the production that reduces core surface scale deposit, guarantee the higher heat exchange efficiency of heat exchange module, the cooling effect is good, and still reduce the operation frequency of demolising the scale removal operation of the core of heat exchange module and maintaining through chemical cleaning, avoid causing deformation and the performance decline of core, in order to improve the life of core, reduce maintainer's maintenance work degree of difficulty, simultaneously can also reduce the corruption of cooling water to metal core surface for example.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic block diagram of an indirect evaporative cooling system provided in an exemplary embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a heat exchange module of an indirect evaporative cooling system provided in an exemplary embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a data center provided in an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a heat exchange module; 110-a first core; 111-a first channel; 112-a first inlet; 113-a first outlet; 120-a second core; 121-a second channel; 122-a second inlet; 123-a second outlet; 124-a separator; 125-fins; 126-a seal; 130-a housing; 2-a humidifying module; 210-a wet film; 220-a first spray assembly; 221-a first water distributor; 22110-first main tube; 22120-first manifold; 22130-first showerhead; 230-a water collecting tank; 231-a water collecting port; 232-first water supply port; 233-water supplement port; 234-a water outlet; 235-a second water supply port; 236-an extension; 3-a first water supply pipeline; 310-a first drive pump; 320-a first control valve; 4-a second spray assembly; 410-a second water distributor; 411 — a second main tube; 412-a second leg; 413-a second spray head; 5-a second water supply pipeline; 510-a second drive pump; 520-a second control valve; 6-a first blower; 610-a first air inlet; 620-a first outlet; 7-a second blower; 710-a second air intake; 720-a second air outlet; 8-a cooling water tower; 9-data computer room.

Detailed Description

The following detailed description of the embodiments of the disclosure refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the use of the directional terms such as "up and down" generally refers to the up and down in the space of the heat exchange module and the humidification module when they are in use, and also refers to the up and down in the direction of the drawing in fig. 1; "inner and outer" refer to the inner and outer contours of a component or structure itself. In addition, it should be noted that terms such as "first", "second", and the like are used for distinguishing one element from another, and have no order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

The inventor researches and discovers that in the related art, when the outside air is raised along with the outdoor temperature, in order to ensure the better cooling performance of the unit, a water spraying evaporation cooling mode is generally adopted, namely, cooling is carried out by directly spraying cooling water on the surface of the heat exchange core body, but as calcium, magnesium and other ions in the cooling water are hydrolyzed in the evaporation process to form CaCO3, mgCO3 and other scales and are attached to the surface of the core body, the operation and maintenance workload is larger, and if the maintenance operations such as scale removal and cleaning are not in place, the heat exchange efficiency of the heat exchange core body of the unit is influenced, and the energy consumption is increased. In addition, because the heat exchange core material that uses at present mainly is metal material and polymer material (plastics), maintenance operations such as heat exchange core scale removal and washing can lead to heat exchange core deformation and performance to descend, and long-term spray cooling water still can cause the corruption to the metal heat exchange core simultaneously, seriously reduces heat exchange core's overall life-span.

Based on this, according to a first aspect of the present disclosure, there is provided an indirect evaporative cooling system, as shown in fig. 1 and fig. 2, the cooling system includes a heat exchange module 1 and a humidification module 2, the heat exchange module 1 includes a first core 110, a first channel 111 for circulating a gas to be cooled is provided in the first core 110, a second channel 121 for circulating air to exchange heat with the gas to be cooled is provided outside the first core 110; the humidifying module 2 is disposed outside the heat exchange module 1 and upstream of the second inlet 122 of the second channel 121, so as to humidify and cool the air flowing to the second channel 121.

Through the technical scheme, this indirect evaporative cooling system that this disclosure provided promptly, this cooling system sets up humidification module 2 through the outside at heat exchange module 1 and the upstream department that is located the second import 122 of the second passageway 121 of heat exchange module 1, thereby can carry out the humidification cooling to the air of this second passageway 121 through this humidification module 2, further air after the humidification cooling is sent into in the second passageway 121 and is carried out the heat exchange with the gas of treating cooling in the first core 110, and then realize treating the cooling of the gas of treating in heat exchange module 1, energy-conservation nature is higher.

In addition, compare in the correlation technique through the mode of directly spraying the cooling water to heat exchange module 1's core surface and cool down, obviously this disclosure through set up humidification module 2 in heat exchange module 1's outside, and carry out the humidification cooling back through this humidification module 2 and carry out the heat exchange with the inside gas to be cooled of heat exchange module 1's first core 110 continuously and thereby treat the cooling gas indirectly and carry out the cooling mode, can be better avoid the cooling water to contact with the high temperature surface large tracts of land of heat exchange module 1's core, in order to do benefit to and reduce the production of core surface scale deposit, guarantee the higher heat exchange efficiency of heat exchange module 1, the cooling effect is good, and still reduce the operation frequency of dismantling the scale removal operation of the core of heat exchange module 1 and maintaining through chemical cleaning for example, avoid causing deformation and the performance decline of core, in order to do benefit to improve the life of core, reduce maintainer's maintenance work degree of difficulty, simultaneously can also reduce the corrosion of cooling water to metal core surface for example.

The indirect evaporative cooling is to indirectly exchange heat between air and cooling water through, for example, a heat exchanger and gas to be cooled in the heat exchanger after the air and the cooling water are directly contacted, humidified and cooled, so as to take away heat in the gas to be cooled, thereby achieving the purpose of cooling, wherein the air may be, for example, outdoor fresh air, and the gas to be cooled may be, for example, hot air generated by heat-generating equipment in a machine room during operation or working gas stored in a gas storage tank.

In addition, the flow directions of the air and the gas to be cooled are exemplarily shown in each of fig. 1 to 3, and the non-bold arrows indicate the flow direction of the air, and the bold arrows indicate the flow direction of the gas to be cooled.

The humidifying module 2 may be configured in any suitable manner according to the actual application requirements, for example, in some embodiments, as shown with reference to fig. 1 and 2, the humidifying module 2 may include a wet film 210 and a first spraying assembly 220, the wet film 210 being shielded upstream of the second inlet 122 of the second passage 121, the first spraying assembly 220 being located above the wet film 210 to spray the wet film 210 with cooling water. The wet film 210 is a component commonly used in the humidification field, and is made of a polymer water absorption material such as fiber, for example, and can form a water film attached to the wet film after water absorption, and the contact area between the wet film and air is increased by arranging the wet film in a folded structure, so that the air flowing through can be effectively humidified and cooled.

Because the wet film 210 has better water absorption, the air can be better humidified and cooled, and the wet film 210 can also filter the air, so that the generation of scale on the surface of the first core 110 can be further reduced. In addition, in some embodiments, not shown in the drawings, the humidification module 2 may also be configured to include a water curtain and a third spraying assembly located above the water curtain, or a water mist formed by an atomization generator, etc., which may all be capable of humidifying and cooling air. Wherein, the cooling water can be for example the lower municipal water of temperature or running water, also can be other coolant liquid that can reach the humidification cooling through the mode of heat exchange to guarantee humidification cooling effect. The present disclosure is not specifically limited herein.

In addition, the first spraying assembly 220 may be fixedly connected above the wet film 210 by, for example, a first mounting bracket (not shown), so as to stably arrange the first spraying assembly 220 above the wet film 210 and further spray cooling water on the wet film 210, and the disclosure is not limited in particular.

In some embodiments, referring to fig. 1 and 2, the indirect evaporative cooling system may further include a water collection tank 230 located below the wet film 210, the water collection tank 230 having a water collection port 231 located at the top so that the cooling water missed by the wet film 210 can be collected and recycled. In addition, the first water supply port 232 of the water collection sump 230 communicates with the water inlet port of the first spray assembly 220 through the first water supply pipe 3, so that the cooling water can be sprayed to the wet film 210. In addition, the water collecting tank 230 is further provided with a water replenishing port 233 and a water discharging port 234, the water replenishing port 233 can be further communicated with an external water source (not shown in the drawings), and the water discharging port 234 is communicated with a water discharging ditch (not shown in the drawings), so that when the temperature of cooling water in the water collecting tank 230 is high, the cooling water can be discharged outside through the water discharging port 234, and new cooling water is replenished through the water replenishing port 233, thereby ensuring a good cooling effect.

Wherein the water collection tank 230 may be configured in any suitable manner, such as a water collection tray or a water tank, for example, and the disclosure is not limited thereto. In addition, a liquid level sensor (not shown) and a temperature sensor (not shown) may be further disposed on the water collection tank 230, so as to monitor the liquid level and temperature of the cooling water in the water collection tank 230, so as to timely supplement or discharge the cooling water in the water collection tank 230 according to actual needs. In addition, the wet film 210 may be detachably connected to the water collecting tank 230 through, for example, a second mounting bracket (not shown), so as to facilitate periodic detachment and cleaning of the wet film 210 at a later stage, and ensure a high cooling effect of the cooling system.

In some embodiments, referring to fig. 1, the first spraying assembly 220 may include a first water distributor 221, and the first water distributor 221 has a first main pipe 22110 for communicating with the first water supply pipeline 3 and a plurality of first branch pipes 22120 communicating with the first main pipe 22110, and the water outlets of the plurality of first branch pipes 22120 are respectively provided with a first spray head 22130, so as to achieve rapid and comprehensive spraying and humidifying of the wet film 210, thereby ensuring that air flowing through the wet film 210 can be effectively humidified and cooled, and ensuring a higher cooling effect of the cooling system.

In some embodiments, as shown in fig. 1, a first driving pump 310 and a first control valve 320 may be further disposed on the first water supply pipeline 3, so that the first spraying assembly 220 can be controlled to spray water by operatively opening or closing the first control valve 320, the controllability is good, and the cooling water can be more rapidly supplied to the first spraying assembly 220 by the first driving pump 310.

In addition, when the air humidified and cooled by the humidification module 2 does not reach the required wet bulb temperature, that is, the air temperature in the humidification environment is relatively high, and the temperature of the gas to be cooled cannot be reduced to a set value after the air is subjected to heat exchange with the gas to be cooled, in order to ensure normal operation of the unit, in some embodiments, as shown in fig. 1, the cooling system may further include a second spray assembly 4 located above the heat exchange module 1, a water inlet of the second spray assembly 4 is communicated with the second water supply port 235 of the water collection tank 230 through a second water supply pipe 5, and the second water supply pipe 5 is provided with a second driving pump 510 and a second control valve 520, so that the second driving pump 510 and the second control valve 520 may be opened operationally, so that the first core 110 of the heat exchange module 1 may be directly subjected to transient water spraying, cooling of the first core 110 by the cooling water may be realized, so that the temperature of the gas to be cooled inside the first core 110 may be reduced, so that when the air humidified and cooled by the humidification module 2 does not reach the required wet bulb temperature, or the first spray assembly 220 may malfunction, and so that the unit may be used as an emergency spray assembly, and so that the unit can be used as an emergency spray unit.

Among them, fig. 1 exemplarily shows that the water collecting port 231 of the water collecting tank 230 has the extending portion 236 extended to the lower side of the heat exchanging module 1, thereby enabling to collect the cooling water missing from the heat exchanging module 1 and to realize the cooling water collection by sharing one water collecting tank 230 with the wet film 210, higher applicability and lower manufacturing cost. In addition, the second spraying component 4 may be fixedly connected above the first core 110 of the heat exchange module 1 by, for example, a third mounting bracket (not shown in the figure), so as to stably arrange the second spraying component 4 above the first core 110 of the heat exchange module 1 and further spray cooling water on the surface of the first core 110, which is not specifically limited in this disclosure.

In some embodiments, which are not shown in the drawings, the cooling system may further include a controller, which may be in signal connection with the first driving pump 310, the first control valve 320, the second driving pump 510, and the second control valve 520, respectively, for good operability and efficiency. Specifically, the controller controls the first driving pump 310 and the first control valve 320 to open, so that the wet film 210 can be sprayed and humidified through the first nozzle 22130, the air flowing through the wet film 210 can be humidified and cooled, and the gas to be cooled inside the first core 110 can be cooled through the humidified and cooled air; when for example the air that carries out the humidification cooling through humidification module 2 does not reach required wet bulb temperature, just can open through controller control second driving pump 510 and second control valve 520, thereby can realize directly carrying out transient water spray to heat exchange module 1's first core 110 through second shower nozzle 413, and then reduce the inside gaseous temperature of treating the cooling of first core 110, when treating the air temperature in the humidification environment and reducing to required temperature, just close through controller control second driving pump 510 and second control valve 520, only treat the air after the humidification cooling and cool down indirectly and treat the cooling gas and cool down, so as to do benefit to the production that reduces core surface scale deposit, guarantee the higher heat exchange efficiency of heat exchange module 1. The controller can be configured as a PLC controller, for example, and can be in signal connection with the respective element to be controlled in a wired or wireless manner. The control valve may be an electric valve or an electromagnetic valve, which is in signal connection with the controller, or may be a manual valve, which is manually controlled, and the disclosure is not limited thereto.

In some embodiments, referring to fig. 1, the second spraying assembly 4 may include a second water distributor 410, and the second water distributor 410 has a second main pipe 411 for communicating with the second water supply pipeline 5 and a plurality of second branch pipes 412 communicating with the second main pipe 411, and the water outlets of the plurality of second branch pipes 412 are respectively provided with a second spraying nozzle 413, so as to realize rapid and comprehensive spraying of cooling water on the surface of the first core 110 of the heat exchange module 1, and further realize cooling and temperature reduction on the surface of the first core 110.

For example, in some embodiments, referring to fig. 1 and fig. 2, the heat exchange module 1 may include a housing 130, a plurality of first cores 110 are arranged in the housing 130 at intervals, a second core 120 is arranged at a gap between adjacent first cores 110, outer wall surfaces of the second cores 120 are respectively attached to outer wall surfaces of two adjacent first cores 110, and a second channel 121 is opened inside the second core, the first channel 111 has a first inlet 112 for air to be cooled to enter and a first outlet 113 for air after heat exchange to flow out, the second channel 121 has a second inlet 122 for air after humidification and temperature reduction to enter and a second outlet 123 for air after heat exchange to flow out, so that the air after humidification and temperature reduction flows through the second core 120 and further exchanges heat with the air to be cooled in the first core 110 attached to the outer wall surface of the second core 120, and cooling of the air to be cooled can be achieved. As shown in fig. 2, optionally, the first channel 111 and the second channel 121 are perpendicular to each other, so that an external pipeline is convenient to arrange, a pipeline system butted with the first channel 111 does not affect the arrangement of the humidification modules 2 on the second channel 121, the space utilization rate is high, and the heat exchange efficiency is high.

Here, fig. 2 exemplarily shows that each of the first core 110 and the second core 120 is configured to include two separators 124, a fin 125 disposed between the two separators 124, and a seal 126, and the fin 125 is formed as the above-described first channel 111 and the second channel 121. In addition, the cross-sectional shape of the fins 125 may be configured in any suitable shape, such as a zigzag, corrugated, or louvered shape. In addition, the housing 130 may be fixedly attached to the water collection tank 230 by, for example, a fourth mounting bracket (not shown), or may be integrated with the water collection tank 230, which is not particularly limited in this disclosure.

In other embodiments, which are not shown in the drawings, the second channel may be a channel that directly allows the humidified and cooled air to flow through the outer surface of the first core without separately providing the second core. At this time, the gaps between the plurality of first cores are formed as the second channels, so that the air after being humidified and cooled can also exchange heat with the gas to be cooled in the first channels by flowing through the gaps between the plurality of first cores, and this disclosure does not limit this kind of modification.

According to a second aspect of the present disclosure, there is also provided an air conditioning unit, as shown in fig. 2 and 3, including the first blower 6 having the first air inlet 610 and the first air outlet 620, and the above-mentioned indirect evaporative cooling system, wherein the first passage 111 is communicated between the first air inlet 610 and the first air outlet 620. The air conditioning unit can reduce the generation of scale on the surface of the heat exchange core body by arranging the indirect evaporative cooling system, thereby reducing the maintenance cost of the air conditioning unit and prolonging the service life of the air conditioning unit. In addition, the air conditioning unit has all the advantages of the indirect evaporative cooling system, and the details of the disclosure are not repeated.

According to a third aspect of the present disclosure, there is also provided a water chiller, as shown in fig. 2 and fig. 3, including a second blower 7 having a second air inlet 710 and a second air outlet 720, and a cooling water tower 8 communicating with the second air outlet 720 of the second blower 7, and further including the above-mentioned indirect evaporative cooling system, wherein the first passage 111 communicates between the second air inlet 710 and the second air outlet 720. This cooling water set is through being provided with indirect evaporative cooling system, not only can realize further cooling to the cooling gas of treating that sends into in cooling tower 8, so that will further carry to cooling tower 8 in through cooling gas of cooling, and carry out abundant heat and moisture exchange with the water film on the filler surface in the cooling tower 8, thereby can prepare the lower cooling liquid of temperature, this cooling liquid can be for example the cooling water, simultaneously can also alleviate the production of heat transfer core body surface scale deposit, therefore can reduce cooling water set's maintenance cost, and can improve cooling water set's life. In addition, the water chilling unit has all the advantages of the indirect evaporative cooling system, and the details of the disclosure are not repeated herein.

According to a fourth aspect of the present disclosure, a data center is further provided, which is shown in fig. 2 and fig. 3, and includes the data machine room 9 and the air conditioning unit described above, where the first air blower 6 of the air conditioning unit is located in the data machine room 9, so as to cool the air in the machine room. In addition, the water chilling unit can be further included, the second air blower 7 and the cooling water tower 8 are arranged in the data machine room 9, for example, cooling water prepared by the cooling water tower 8 can be contacted with high-temperature return water of the machine room through a coil form, so that heat in the high-temperature return water of the machine room can be directly taken away. The data center that this disclosure provided can use foretell air conditioning unit and cooling water set simultaneously, also can only use one of them, and the homoenergetic alleviates the production of the heat transfer core body surface scale deposit among the indirect evaporative cooling system, therefore can reduce data center's maintenance cost to and can improve data center's life, and have above-mentioned air conditioning unit and cooling water set's all beneficial effects, this disclosure is no longer repeated here.

The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.

Claims (11)

1. An indirect evaporative cooling system, the cooling system comprising:

the heat exchange module comprises a first core, wherein a first channel for circulating gas to be cooled is arranged in the first core, and a second channel for allowing air to flow through to exchange heat with the gas to be cooled is arranged outside the first core; and

and the humidifying module is arranged outside the heat exchange module and positioned at the upstream of the second inlet of the second channel so as to humidify and cool the air flowing to the second channel.

2. The indirect evaporative cooling system of claim 1, wherein the humidification module comprises a wet film shielded upstream of the second inlet of the second channel and a first spray assembly positioned above the wet film to spray the wet film with cooling water.

3. The indirect evaporative cooling system of claim 2, further comprising a water collection sump located below the wet film, the water collection sump having a water collection port located at the top, a first water supply port in communication with the water inlet of the first spray assembly through a first water supply conduit, a water replenishment port, and a water discharge port.

4. The indirect evaporative cooling system of claim 3, wherein the first spray assembly comprises a first water distributor having a first main pipe for communicating with the first water supply pipeline and a plurality of first branch pipes communicating with the first main pipe, and a first spray nozzle is disposed at a water outlet of each of the plurality of first branch pipes.

5. The indirect evaporative cooling system of claim 3, wherein the first water supply conduit is further provided with a first drive pump and a first control valve.

6. The indirect evaporative cooling system of claim 3, further comprising a second spray assembly positioned above the heat exchange module, the water inlet of the second spray assembly being in communication with a second water supply inlet of the water collection sump via a second water supply conduit, and the second water supply conduit having a second drive pump and a second control valve disposed thereon, the water collection inlet of the water collection sump having an extension extending below the heat exchange module.

7. The indirect evaporative cooling system of claim 6, wherein the second spray assembly comprises a second water distributor having a second main pipe for communicating with the second water supply pipeline and a plurality of second branch pipes communicating with the second main pipe, and wherein a second spray nozzle is disposed at a water outlet of each of the plurality of second branch pipes.

8. The indirect evaporative cooling system of claim 1, wherein the heat exchange module comprises a casing, a plurality of first cores are arranged in the casing at intervals, a second core is arranged at a gap between two adjacent first cores, the outer wall of each second core is respectively attached to the outer wall of two adjacent first cores, the second channel is arranged inside the casing, the first channel and the second channel are arranged in a direction perpendicular to each other, the first channel is provided with a first inlet for the air to be cooled to enter and a first outlet for the air after heat exchange to flow out, and the second channel is provided with a second inlet for the air after humidification and temperature reduction to enter and a second outlet for the air after heat exchange to flow out.

9. An air conditioning assembly comprising a first blower having a first air inlet and a first air outlet, and further comprising the indirect evaporative cooling system of any of claims 1-8, wherein the first passage communicates between the first air inlet and the first air outlet.

10. A water chiller including a second blower having a second air inlet and a second air outlet, and a cooling tower in communication with the second air outlet of the second blower, further comprising the indirect evaporative cooling system of any of claims 1-8, the first passage being in communication between the second air inlet and the second air outlet.

11. A data centre comprising a data room, characterized in that it further comprises an air conditioning unit according to claim 9, the first blower of which is located in the data room, and/or it further comprises a water chilling unit according to claim 10, the second blower and the cooling water tower being arranged in the data room.

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