CN218884159U

CN218884159U - Composite evaporative cooling tower and data center

Info

Publication number: CN218884159U
Application number: CN202222746132.1U
Authority: CN
Inventors: 张炳华; 李明江; 孙晓钢
Original assignee: Hebei Qinhuai Data Co Ltd
Current assignee: Hebei Qinhuai Data Co Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-18
Anticipated expiration: 2032-10-18

Abstract

The invention provides a composite evaporative cooling tower and a data center, and belongs to the technical field of cooling towers. The composite evaporative cooling tower comprises an air inlet grille, a precooling module, a first spraying module, a cooling module, a direct evaporative heat exchanger, a second spraying module, a water collector and an outdoor fan; the precooling module is arranged on the inner side of the air inlet grille; the first spraying module is arranged above the precooling module, and the second spraying module is arranged above the direct evaporation heat exchanger; the cooling module is arranged below the direct evaporation heat exchanger; wherein the cooling module comprises a plurality of cooling sub-modules. By adopting the invention, the energy consumption of the data center can be reduced.

Description

Composite evaporative cooling tower and data center

Technical Field

The invention relates to the technical field of cooling towers, in particular to a composite evaporative cooling tower and a data center.

Background

IT equipment in a data center may dissipate a significant amount of heat when operating. With the development of the scale and the integration of the data center, the heat generated by the IT equipment in the data center during operation is increasing day by day, and if the generated heat is not dissipated in time, the IT equipment in the data center fails due to overhigh temperature, even goes down, and the normal operation of the data center is influenced.

In order to ensure the normal operation of the equipment, an air conditioning system can be set up for the data center to cool down a machine room of the data center. The existing air conditioning system of the data center consumes a large amount of energy, and occupies a large part of the total energy consumption of the data center. For a large data center, the cost is high by adopting the existing air conditioning system, and the refrigeration effect is not ideal.

SUMMERY OF THE UTILITY MODEL

In order to solve part or all of the problems in the prior art, the inventive embodiment of the present invention provides a composite evaporative cooling tower and a data center. The technical scheme is as follows:

in a first aspect, a composite evaporative cooling tower is provided, which comprises an air inlet grille, a precooling module, a spray circulating pump, a first spray module, a cooling module, a direct evaporative heat exchanger, a second spray module, a water collector and an outdoor fan;

the precooling module is arranged on the inner side of the air inlet grille;

the first spraying module is arranged above the precooling module, and the second spraying module is arranged above the direct evaporation heat exchanger;

the cooling module is arranged below the direct evaporation heat exchanger; wherein the cooling module comprises a plurality of cooling sub-modules.

Furthermore, the precooling module comprises a precooling wet film and an indirect evaporative cooler, and the indirect evaporative cooler is arranged on the inner side of the precooling wet film.

Furthermore, the cooling tower further comprises at least one spraying circulating pump, and the first spraying module and the second spraying module are connected with the at least one spraying circulating pump through pipelines.

Furthermore, the first spraying module is connected with the first spraying circulating pump, and the second spraying module is connected with the second spraying circulating pump.

Further, the cooling module comprises a natural cooling sub-module and a mechanical cooling sub-module.

Furthermore, the natural cooling submodule comprises a common evaporative cooling coil and a cooling water circulating water pump which are connected through a pipeline.

Further, the mechanical cooling submodule comprises a fluorine pump evaporative cooling coil, a fluorine pump and a compressor which are connected through a pipeline.

Further, the water collector is arranged above the second spraying module, and the outdoor fan is arranged at the top of the cooling tower.

Further, the cooling tower further comprises a pre-cooling fan, and the pre-cooling fan is arranged above the first spraying module.

In a second aspect, there is provided a data center comprising a composite evaporative cooling tower as described in the first aspect and a server room.

Compare in traditional evaporative cooling system air conditioner, this application utilizes compound evaporative cooling principle, can promote air conditioning system cooling efficiency, and then reduces data center operation energy consumption. Moreover, the cooling of the same data center is achieved by integrating multiple sets of independent cold sources, the cooling effect of the air conditioning system is further improved, and the rapid delivery of the air conditioning system based on the cold supply of the multiple sets of cold sources is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a composite evaporative cooling tower provided in an embodiment of the present application;

fig. 2 is a schematic diagram of an operating principle of a pre-cooling module according to an embodiment of the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Terms such as "upper," "above," "lower," "below," "first end," "second end," "one end," "another end," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Furthermore, the terms "mounted", "disposed", "provided", "connected", "slidably connected", "fixed" and "sleeved" are to be understood in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be internally connected between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The invention provides a composite evaporative cooling tower, which comprises an air inlet grille, a precooling module, a spraying circulating pump, a first spraying module, a cooling module, a direct evaporative heat exchanger, a second spraying module, a water collector and an outdoor fan, wherein the first spraying module is connected with the precooling module; the precooling module is arranged on the inner side of the air inlet grille; the first spraying module is arranged above the precooling module, and the second spraying module is arranged above the direct evaporation heat exchanger; the cooling module is arranged below the direct evaporation heat exchanger.

For convenience of description, the spray module for pre-cooling the pre-cooling module may be referred to as a first spray module, and the spray module for cooling the direct evaporation heat exchanger may be referred to as a second spray module.

In implementation, the first spray module is disposed above the pre-cooling module, and the second spray module is disposed above the direct evaporation heat exchanger. In other words, the first spraying module is far away from the ground compared with the pre-cooling module, so that the first spraying module can spray water to the pre-cooling module through the spray head conveniently; compared with a direct evaporation heat exchanger, the second spraying module is far away from the ground, and the second spraying module sprays water to the direct evaporation heat exchanger through the spray head. The number of the nozzles can be set according to actual needs, and the invention is not limited to this.

The pre-cooling module may be disposed inside the air-inlet grille. In other words, the pre-cooling module is closer to the center of the cooling tower than the air intake grille. In this way, outdoor air may pass through the air intake grille and then enter the pre-cooling module. The air inlet grille can also be called an air inlet window, and can be made of PVC, stainless steel and other materials.

In one embodiment, the pre-cooling module may further comprise a pre-cooling wet film and an indirect evaporative cooler disposed inside the pre-cooling wet film. That is, the indirect evaporative cooler is closer to the center of the cooling tower than inside the pre-cooled wet film.

In one embodiment, the cooling tower can further comprise at least one spray circulating pump, and the first spray module and the second spray module are connected with the spray circulating pump through pipelines.

For example, the first spraying module for precooling the precooling module and the second spraying module for cooling the direct evaporation heat exchanger may share one or a group of spraying circulation pumps, and at this time, the first spraying module, the second spraying module and the shared spraying circulation pump may be communicated through a pipeline and may share a water tray (or called water collection tray).

Of course, the first spray module and the second spray module may also occupy one or a group of spray circulation pumps, respectively. For ease of description, a spray circulation pump exclusive of a first spray module may be referred to as a first spray circulation pump, and a spray circulation pump exclusive of a second spray module may be referred to as a second spray circulation pump. At the moment, the first spraying module is connected with the first spraying circulating pump, and the second spraying module is connected with the second spraying circulating pump. Like this, first spraying module and second spray the module and be equivalent to belonging to two different spraying systems respectively, and these two spraying systems all contain parts such as shower nozzle, pipeline, water pump, water tray.

In one embodiment, the cooling module may include a plurality of cooling submodules. Therefore, multiple sets of cold sources can be provided simultaneously for cooling the data center machine room, and the heat dissipation effect of the air conditioning system on the data center machine room can be improved. Specifically, part or all of the sub-modules can be selectively opened according to actual requirements to supply cold for the data center machine room.

The plurality of cooling sub-modules may specifically include one or more natural cooling sub-modules and/or one or more mechanical cooling sub-modules.

In one embodiment, the free cooling sub-module may include a common evaporative cooling coil and a cooling water circulating pump connected by piping to provide a cooling water heat sink to the data center. The mechanical cooling sub-module may include a fluorine pump evaporative cooling coil, a fluorine pump, and a compressor connected by piping, providing a refrigerant heat sink to the data center.

In one embodiment, the water collector is arranged above the second spraying module, and the outdoor fan is arranged at the top of the cooling tower.

The water collector can be used for collecting liquid water carried in part of evaporated water vapor, and the outdoor fan can be used for guiding air flowing through the cooling module to be discharged into the atmosphere.

In one embodiment, the cooling tower further comprises a pre-cooling fan disposed above the first spray module, the pre-cooling fan operable to direct air flowing through the pre-cooling module to the atmosphere.

In one embodiment, referring to fig. 1, the outdoor air sequentially passes through the air inlet grille, the pre-cooling wet film and the indirect evaporative cooler, after pre-cooling, the cooling module is cooled, then the cooling water on the direct evaporative heat exchanger is cooled, and then the cooling water passes through the water receiver and the outdoor fan and is discharged to the atmosphere. The precooling wet film and the indirect evaporative cooler can cool the outdoor air to reduce the dry bulb temperature to be close to the wet bulb temperature as much as possible, the working principle of the precooling module can be seen in fig. 2, wherein the arrows indicate the flow direction of the outdoor air at the precooling module in the embodiment. The direct evaporative heat exchanger may cool the cooling water to a temperature as close as possible to the wet bulb temperature.

The naturally cooling sub-module shown in fig. 1 is arranged below the mechanically cooling sub-module, in other words, the naturally cooling sub-module is closer to the ground than the mechanically cooling sub-module. Of course, in certain embodiments, the free cooling sub-module may also be disposed above the mechanical cooling sub-module.

In implementation, the common evaporative cooling coil of the natural cooling submodule and the fluorine pump evaporative cooling coil of the mechanical cooling submodule can be cooled under the combined action of the outdoor air cooled by the precooling wet film and the indirect evaporative cooler and the cooling water cooled by the direct evaporative heat exchanger. In this way, the coils of the plurality of cooling sub-modules may be operated at an energy efficient operating temperature.

In the implementation, the indirect evaporative cooling precooling part adopts an indirect evaporative cooling principle to cool, after the precooled outdoor air and the spraying system jointly act, the purpose of cooling the precooled side air can be realized, and then the outdoor air is exhausted to the atmosphere through the guidance of the precooling fan.

Based on the same technical concept, the inventive embodiment of the present invention further provides a data center, which comprises the above-mentioned composite evaporative cooling tower and the server room. The cooling tower is arranged outside the server room and used for cooling the server room.

With the above embodiments, the present application can produce at least the following technical effects:

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A composite evaporative cooling tower is characterized by comprising an air inlet grille, a precooling module, a first spraying module, a cooling module, a direct evaporative heat exchanger, a second spraying module, a water collector and an outdoor fan;

the precooling module is arranged on the inner side of the air inlet grille;

2. The cooling tower of claim 1, wherein the pre-cooling module comprises a pre-chilled wet film and an indirect evaporative cooler disposed inside the pre-chilled wet film.

3. The cooling tower of claim 1, further comprising at least one spray circulation pump, wherein the first spray module, the second spray module and the at least one spray circulation pump are connected by a pipe.

4. The cooling tower of claim 3, wherein the first spray module is coupled to a first spray circulation pump and the second spray module is coupled to a second spray circulation pump.

5. The cooling tower of claim 1, wherein the cooling module comprises a natural cooling submodule and a mechanical cooling submodule.

6. The cooling tower of claim 5, wherein the free cooling sub-module comprises a common evaporative cooling coil and a chilled water circulating pump connected by piping.

7. The cooling tower of claim 5, wherein the mechanical cooling submodule comprises a fluorine pump evaporative cooling coil, a fluorine pump, and a compressor connected by piping.

8. The cooling tower of claim 1, wherein the water collector is disposed above the second spray module and the outdoor fan is disposed at a top of the cooling tower.

9. The cooling tower of claim 1, further comprising a pre-cooling fan disposed above the first spray module.

10. A data center comprising the composite evaporative cooling tower and server room of claims 1-9.