CN212227305U

CN212227305U - Indirect evaporative cooling unit and data center machine room

Info

Publication number: CN212227305U
Application number: CN202022246749.8U
Authority: CN
Inventors: 陈云伟; 吴刚; 王前方; 陶锴; 王铁旺
Original assignee: Shenzhen Envicool Technology Co Ltd
Current assignee: Shenzhen Envicool Technology Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2020-12-25
Anticipated expiration: 2030-10-10

Abstract

The utility model provides an indirect evaporative cooling unit and data center computer lab relates to the refrigeration technology field. The data center machine room comprises an indirect evaporative cooling unit, the indirect evaporative cooling unit comprises a shell, an evaporator, a heat exchange core, a first fan, a condenser and a second fan, the shell is provided with a first air duct and a second air duct, the first air duct is linear and is crossed with the second air duct, the evaporator and the heat exchange core are installed in the first air duct, the heat exchange core is located at the intersection of the first air duct and the second air duct, and the first fan is arranged on the first air duct and used for driving air to flow into the first air duct and sequentially flow through the heat exchange core and the evaporator; the second fan is arranged on the second air channel and used for driving air to flow into the second air channel and flow through the heat exchange core and the condenser in sequence. The indirect evaporative cooling unit can reduce the inflection point of the air duct, and has the advantages of good refrigeration effect and low refrigeration energy consumption.

Description

Indirect evaporative cooling unit and data center machine room

Technical Field

The utility model relates to a refrigeration technology field particularly, relates to an indirect evaporative cooling unit and data center computer lab.

Background

With the advent of the data age, the computer room has become an important component in national economic development, and is an important support for promoting the informatization and digitization of the scientific and technological industry. With the development of data center scale and integration, the power density of IT equipment in the server is increasing day by day, and the heat density is increasing dramatically, which brings about two problems: on one hand, the electric quantity consumed in the machine room is greatly increased; on the other hand, the problem of server heat dissipation becomes more and more serious, and even possibly at the cost of consuming a large amount of energy and operating cost, equipment is shut down due to heat generation of the equipment.

Traditional computer lab adopts mechanical refrigeration, and the electric energy of refrigeration consumption accounts for more than 35% of the computer lab energy consumption, and the refrigeration effect still remains to improve moreover, and the main reason lies in among the current refrigeration mode, and the wind channel flex point of ventilation is too much, and the resistance of air in the wind channel is too big, and flow efficiency is lower, not only does not reach the refrigeration effect of ideal, has still improved the energy consumption. Therefore, the indirect evaporative cooling unit and the data center machine room are designed, so that the inflection point of the air duct can be reduced, the refrigeration effect is good, the refrigeration energy consumption is low, and the technical problem which needs to be solved at present is solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an indirect evaporative cooling unit and data center computer lab can reduce the flex point in wind channel, and not only the refrigeration effect is better, and cryogenic energy consumption is lower moreover.

The embodiment of the utility model is realized like this:

in a first aspect, an embodiment of the present invention provides an indirect evaporative cooling unit, including a casing, an evaporator, a heat exchange core, a first fan, a condenser, and a second fan; the shell is provided with a first air duct and a second air duct, and the first air duct is linear and is crossed with the second air duct; the evaporator and the heat exchange core are arranged in the first air duct, wherein the heat exchange core is positioned at the intersection of the first air duct and the second air duct; the first fan is arranged on the first air channel and used for driving air to flow into the first air channel and sequentially flow through the heat exchange core and the evaporator; the second fan is arranged on the second air channel and used for driving air to flow into the second air channel and flow through the heat exchange core and the condenser in sequence.

In an optional embodiment, the first air duct includes an air inlet side and an air outlet side, and the first fan is disposed on the air inlet side or the air outlet side of the first air duct.

In an alternative embodiment, the first fan and the second fan are both mounted on the housing.

In an optional embodiment, the indirect evaporative cooling unit further includes a filter assembly, the filter assembly is disposed in the first air duct, and the filter assembly and the evaporator are respectively located on two opposite sides of the heat exchange core.

In an optional embodiment, the first fan is movably disposed on the housing, the first fan can extend out of the housing or retract into the housing, when the set is in the first state, the first fan is located outside the housing, and when the set is in the second state, the first fan is located inside the housing.

In an optional embodiment, the indirect evaporative cooling unit further includes a spray assembly, and the spray assembly is disposed in the second air duct and is used for spraying water to the heat exchange core.

In an optional embodiment, the spray assembly includes a sprayer, a water pan and a circulating water pump, the sprayer is disposed on one side close to the inlet of the second air duct or on one side close to the outlet of the second air duct, the water pan is used for receiving water sprayed out from the sprayer, and the circulating water pump is communicated with the water pan and the sprayer.

In an optional embodiment, the spray assembly further comprises a water collector, and the spray assembly is arranged on one side of the evaporator close to the heat exchange core.

The second aspect, the embodiment of the utility model provides a data center computer lab, including the indirect evaporative cooling unit that the first aspect provided, treat cooling space, air supply tuber pipe and return air tuber pipe, wherein: one end of the air supply air pipe is communicated with an outlet of the first air channel, the other end of the air supply air pipe is communicated with the space to be cooled, one end of the air return air pipe is communicated with an inlet of the first air channel, and the other end of the air return air pipe is communicated with the space to be cooled.

In optional embodiment, the data center computer lab still includes first switching tuber pipe, air supply tuber pipe and return air tuber pipe all are the straight line form, indirect evaporative cooling unit installs in the lateral surface of waiting to cool off the space, the space setting is waited to cool off to the export orientation in first wind channel, the entry in first wind channel deviates from and waits to cool off the space setting, the export intercommunication in first switching tuber pipe and first wind channel is passed through to the one end of air supply tuber pipe, the other end intercommunication of air supply tuber pipe is to the bottom of waiting to cool off the space, the return air tuber pipe communicates to the top of waiting to cool off the space.

In an optional implementation mode, the first transfer air pipe is L-shaped, the first transfer air pipe comprises a first vertical portion and a first horizontal portion which are communicated with each other, an inlet is formed in the side face of the first vertical portion and is communicated with an outlet of the first air duct, and the first horizontal portion is located below the first vertical portion and is communicated with the air supply air pipe.

In optional embodiment, the indirect evaporative cooling unit is installed at the top of the space to be cooled, the air supply air pipe and the air return air pipe are both L-shaped, the air supply air pipe comprises a second vertical part and a second horizontal part which are communicated with each other, the air return air pipe comprises a third vertical part and a third horizontal part which are communicated with each other, the second horizontal part, the first air channel and the third horizontal part are sequentially communicated and are positioned on the same straight line, and the second vertical part and the third vertical part are used for being connected at two sides of the top of the space to be cooled.

In optional embodiment, the data center computer lab still includes the second switching tuber pipe, and indirect evaporative cooling unit installs in the inside of waiting to cool off the space, and air supply tuber pipe and return air tuber pipe all are the straight line shape, and the one end of return air tuber pipe is passed through the entry intercommunication in second switching tuber pipe and first wind channel, and the other end of return air tuber pipe is used for communicateing the top of waiting to cool off the space, and air supply tuber pipe one end communicates with the export in first wind channel, and the air supply tuber pipe other end communicates the bottom of waiting to cool off the space.

In an optional implementation mode, the second air transferring pipe is L-shaped, the second air transferring pipe comprises a fourth vertical part and a fourth horizontal part which are communicated with each other, an inlet is formed in the side surface of the fourth vertical part and is communicated with the inlet of the first air duct, and the fourth horizontal part is located above the fourth vertical part and is communicated with the return air pipe.

The embodiment of the utility model provides an indirect evaporative cooling unit and data center computer lab, its technical scheme who adopts and the beneficial effect who brings include at least:

1. the first air duct in the shell is linear and is arranged in a crossed manner with the second air duct, the first fan is arranged on the shell and used for driving air to flow into the first air duct and flow through the heat exchange core and the evaporator in sequence, the air is directly fed into and discharged from the first air duct, no inflection point exists in the circulation process, resistance is reduced, and the air circulation efficiency is improved;

2. the second fan is arranged on the shell and used for driving air to flow into the second air channel and flow through the heat exchange core body and the condenser in sequence, so that the heat exchange efficiency of the heat exchange core body is improved, efficient heat exchange is carried out on the air flowing through the channel, the refrigeration efficiency is improved, and the required energy consumption is less.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a first view angle of a first indirect evaporative cooling unit according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second view angle of the first indirect evaporative cooling unit according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a second indirect evaporative cooling unit according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a third indirect evaporative cooling unit provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fourth indirect evaporative cooling unit provided in the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a fifth indirect evaporative cooling unit provided in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a sixth indirect evaporative cooling unit provided in the embodiment of the present invention;

fig. 8 and 9 are schematic assembly views of the indirect evaporative cooling unit according to the embodiment of the present invention installed on the top of the space to be cooled;

fig. 10 is another assembly view of the indirect evaporative cooling unit according to the embodiment of the present invention installed on the top of the space to be cooled;

fig. 11 and 12 are schematic assembly views of the indirect evaporative cooling unit according to the embodiment of the present invention installed on the outer side of the space to be cooled;

fig. 13 is another assembly view of the indirect evaporative cooling unit according to the embodiment of the present invention, installed on the outer side of the space to be cooled;

fig. 14 and 15 are schematic assembly views of the indirect evaporative cooling unit according to the embodiment of the present invention installed inside a space to be cooled;

fig. 16 is another assembly view of the indirect evaporative cooling unit according to the embodiment of the present invention installed inside the space to be cooled.

The icon is 100-indirect evaporative cooling unit; 110-a housing; 111-a first air duct; 112-a second air duct; 120-a first fan; 130-an evaporator; 140-a heat exchange core; 150-a filter assembly; 161-water collector; 162-a sprayer; 170-a condenser; 180-a second fan; 190-a compressor; 200-a water pan; 210-a circulating water pump; 220-a first transfer air duct; 221-a first vertical portion; 222-a first horizontal portion; 230-air supply duct; 231-a second vertical portion; 232-a second horizontal portion; 240-return air pipe; 241-a third upright portion; 242-a third level section; 250-a second transfer air pipe; 251-a fourth vertical portion; 252-a fourth level section; 300-space to be cooled; 310-suspended ceiling hot aisle; 320-server.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and fig. 2, in the first indirect evaporative cooling unit 100 provided in this embodiment, the indirect evaporative cooling unit 100 includes a casing 110, an evaporator 130, a heat exchange core 140, a filter assembly 150, a first fan 120, a spray assembly, a condenser 170, a second fan 180, and a compressor 190.

The housing 110 is provided with a first air duct 111 and a second air duct 112, the first air duct 111 is linear and is arranged to intersect with the second air duct 112, as shown in fig. 1, the first fan 120 is disposed on the first air duct 111, the first air duct 111 includes an air inlet side and an air outlet side, the first fan 120 is disposed on the air outlet side of the first air duct 111, in other embodiments, the first fan 120 may also be disposed on the air inlet side of the first air duct 111, in short, the first fan 120 is configured to drive air to flow into the first air duct 111 and sequentially flow through the filter assembly 150, the heat exchange core 140 and the evaporator 130, and the flow direction of the air in the first air duct 111 is from right to left in fig. 1, that is, the air sequentially flows through the filter assembly 150, the heat exchange core 140, the evaporator 130 and the first fan 120; the flow direction in the second air duct 112 is from bottom to top as shown in fig. 1, i.e., flows through the heat exchange core 140, the condenser 170, and the second fan 180 in this order. Generally, indoor air passes through the first air duct 111, outdoor air passes through the second air duct 112, and the indoor air and the outdoor air are heat-exchanged at the heat exchange core 140. Thus, there is no inflection point in the air circulation process, so that the resistance is reduced, the operation efficiency of the first fan 120 is high, and the air circulation efficiency is improved.

In fig. 1, the evaporator 130, the heat exchanging core 140 and the filter assembly 150 are sequentially installed in the first air duct 111 from left to right, that is, the evaporator 130, the heat exchanging core 140 and the filter assembly 150 are sequentially installed in the direction from the outlet to the inlet of the first air duct 111, where the heat exchanging core 140 is located at the intersection of the first air duct 111 and the second air duct 112, and the evaporator 130 and the heat exchanging core 140 lower the temperature of the indoor air in the process of passing through the first air duct 111 and blow the indoor air into the space 300 to be cooled for storing heat generating equipment such as the server 320, so that the refrigeration effect in the space 300 to be cooled is significant, and compared with mechanical refrigeration, the energy consumption is greatly reduced. In addition, since air generally contains dust and affects the servers 320 in the space 300 to be cooled, the filter unit 150 is installed at the inlet of the first air duct 111 to effectively filter the dust and other substances in the air.

The second fan 180 is disposed on the second air duct 112, and is configured to drive air to flow into the second air duct 112 and sequentially flow through the heat exchanging core 140 and the condenser 170, so as to improve heat exchanging efficiency of the heat exchanging core 140, thereby improving efficient heat exchanging for air flowing through the channel, improving refrigeration efficiency, and requiring less energy consumption.

The spraying assembly is disposed in the second air duct 112 and is used for spraying water to the heat exchange core 140. Specifically, the spray assembly includes a sprayer 162, a water pan 200, a water circulating pump 210 and a water collector 161, the sprayer is disposed on one side close to the inlet of the second air duct 112 or on one side close to the outlet of the second air duct 112, the water pan 200 is used for receiving water sprayed from the sprayer 162, and the water circulating pump 210 is communicated with the water pan 200 and the sprayer 162. The water collector 161 can be used to prevent water from contacting the condenser 170, and thus, the water collector can retain water. In this way, the circulating water pump 210, the sprayer 162 and the water receiving tray 200 form a circulating water path, the sprayer 162 is used for spraying water to the heat exchange core 140, and the water finally flows into the water receiving tray 200 below under the action of gravity. Like this, the surface that sprayer 162 can make heat exchange core 140 fully contacts with water, improves heat exchange core 140's heat exchange efficiency, makes the unit utilize outdoor cold air and the latent heat of latent heat to treat the room air in the cooling space 300 and refrigerate simultaneously, has improved refrigeration efficiency, reduces the energy consumption. In other embodiments, the shower 162 may be disposed below the heat exchange core 140 as long as the sprayed water can be sufficiently contacted with the heat exchange core 140.

The compressor 190 can be installed at the bottom of the housing 110 and located at one side of the water pan 200, so that the occupied space can be reduced, and the volume of the unit is small. Of course, in other embodiments, the compressor 190 can also be installed in the middle, upper, and so on of the housing 110, and the specific installation position can be set according to actual needs.

In fig. 1, a condenser 170 and a second fan 180 are sequentially disposed above the water collector 161, so that the second fan 180 can discharge hot air around the condenser 170 out of the housing 110, and the second fan 180 is located at the top of the housing 110, and the hot air discharged by the second fan 180 has a relatively low density with respect to the cool air, and the hot air automatically flows upwards.

It is noted that the filter assembly 150 may include one or more of a primary filter screen, a high efficiency filter screen, and activated carbon.

Referring to fig. 2, the number of the first fans 120 and the second fans 180 is multiple, and the first fans 120 or the second fans 180 in each row or each column are arranged in a matrix form, and the first fans 120 or the second fans 180 in each row or each column are uniformly arranged along a straight line at intervals, and in other embodiments, the first fans 120 or the second fans 180 may be arranged in a staggered manner, or even in a random manner. In practice, the size of the unit may be designed according to the required cooling capacity, so as to determine the number and arrangement form of the first fan 120 and the second fan 180.

Referring to fig. 3, in the second indirect evaporative cooling unit 100 provided in this embodiment, the first fan 120 is movably mounted on the casing 110, so that the first fan 120 can extend out of the casing 110 and retract into the casing 110. When the unit is in the first state, that is, when the indirect evaporative cooling unit 100 is in operation, the first fan 120 extends out of the casing 110 to drive air to flow in the first air duct 111, and when the unit is in the second state, that is, when the indirect evaporative cooling unit 100 is in the process of transportation or storage, the first fan 120 is retracted into the casing 110, which not only can reduce the volume of the unit and facilitate transportation or storage, but also can avoid collision and damage of the first fan 120, and moreover, the first fan 120 can still normally work when retracted into the casing 110, and plays a role in driving air to flow in the first air duct 111, so that the first fan 120 is always located inside the casing 110, thereby playing a good protection role.

Specifically, the first fan 120 may be moved by providing a slide rail (not shown), the first fan 120 is mounted on the housing 110 by the slide rail, the slide rail extends inward from the outside of the housing 110, and the first fan 120 may be fixed at any position on the slide rail by a fastening bolt, so that the first fan 120 may extend out of the housing 110 and retract into the housing 110.

In other embodiments, mounting locations for mounting the first fan 120 may be provided on both the inside and the outside of the housing 110, so that the first fan 120 may be mounted outside the housing 110 or inside the housing 110.

Referring to fig. 4, in the third indirect evaporative cooling unit 100 provided in this embodiment, the first fan 120 is installed at the air inlet side of the first air duct 111, the filter assembly 150, the heat exchange core 140 and the evaporator 130 are sequentially installed in the first air duct 111 from left to right, that is, the filter assembly 150, the heat exchange core 140 and the evaporator 130 are sequentially installed in the first air duct 111 from the inlet to the outlet, and indoor air enters the first fan 120 and is blown into the first air duct 111. In this way, the cooling effect in the space 300 to be cooled can be significant as well, and the energy consumption is greatly reduced compared with mechanical cooling. In addition, the filter assembly 150 can effectively filter dust and the like in the air.

Referring to fig. 5, in an application scenario where a space is small, for example, in a place where a cooling capacity demand is small, the fourth indirect evaporative cooling unit 100 provided in this embodiment may be applied, the overall size of the casing 110 is small, and the first fan 120 and the second fan 180 are respectively arranged in a row, so as to reduce the volume of the unit and ensure a cooling effect.

Referring to fig. 6, in the fifth indirect evaporative cooling unit 100 provided in this embodiment, the first fan 120 is installed at the inlet of the first air duct 111 and located inside the casing 110, and the filter assembly 150, the heat exchange core 140 and the evaporator 130 are sequentially installed in the first air duct 111 from left to right, that is, the filter assembly 150, the heat exchange core 140 and the evaporator 130 are sequentially installed in the first air duct 111 from the inlet to the outlet.

Referring to fig. 7, in the sixth indirect evaporative cooling unit 100 provided in this embodiment, the first fan 120 is installed at the outlet of the first air duct 111 and located inside the casing 110, so that the first fan 120 can maintain the inside of the casing 110 in a positive pressure state during the operation process. Evaporator 130, heat exchange core 140 and filter assembly 150 are installed in first air duct 111 from right to left, that is, filter assembly 150, heat exchange core 140 and evaporator 130 are installed in first air duct 111 from inlet to outlet.

It will be readily understood that six configurations of the indirect evaporative cooling unit 100 are described with reference to fig. 1 to 7, and that these units can be adapted to different specific application scenarios due to different designs of the structural arrangements. It can be understood that, based on the indirect evaporative cooling unit 100 provided in the present embodiment, a person skilled in the art can also make corresponding designs for the unit according to practical application scenarios under the inventive general inventive concept, for example, change the number of the first fan 120 and the second fan 180, the arrangement order of the components in the first air duct 111, and the positions of other components in the housing 110. All without departing from the design concept of the indirect evaporative cooling unit 100 provided in the present embodiment, and all such concepts should fall within the scope of the present application.

Referring to fig. 8 to 16, the present embodiment further provides a data center machine room, where the data center machine room may include one of the above indirect evaporative cooling units 100, an air supply duct 230 and a return air duct 240, one end of the air supply duct 230 is communicated with an outlet of the first air duct 111, the other end of the air supply duct 230 is used for being communicated with the space 300 to be cooled, one end of the return air duct 240 is communicated with an inlet of the first air duct 111, and the other end of the return air duct 240 is used for being communicated with the space 300 to be cooled, so as to implement cooling inside the space 300 to be cooled by the unit.

In the data center room provided in this embodiment, the assembly form of the indirect evaporative cooling unit 100 in the space 300 to be cooled may include three types: the unit is mounted on the top of the space 300 to be cooled, the unit is mounted on the outer side of the space 300 to be cooled, and the unit is mounted inside the space 300 to be cooled.

The above-described various indirect evaporative cooling units 100 are applicable to the above-described three assembly forms, and the various assembly forms are described below.

(1) The units being mounted on top of the space 300 to be cooled

Referring to fig. 8 and 9, arrows indicate the flow direction of air, and the indirect evaporative cooling unit 100 is installed at the top of the space 300 to be cooled, and the number of units is plural. The air supply duct 230 and the air return duct 240 are both L-shaped, the air supply duct 230 includes a second vertical portion 231 and a second horizontal portion 232 which are communicated with each other, the air return duct 240 includes a third vertical portion 241 and a third horizontal portion 242 which are communicated with each other, the second horizontal portion 232, the first air duct 111 and the third horizontal portion 242 are sequentially communicated with each other, and the axes are in a straight line, the second vertical portion 231 and the third vertical portion 241 are respectively connected to two sides of the top of the space 300 to be cooled, wherein the top of the space 300 to be cooled is provided with the ceiling hot channel 310, the server 320 is arranged inside the space 300 to be cooled, the second vertical portion 231 penetrates through the ceiling hot channel 310, the second vertical portion 231 enables cold air to be directly conveyed to the space where the server 320 is located, the third vertical portion 241 is communicated with the ceiling hot channel 310, and the third vertical portion 241 enables hot air in the ceiling hot channel 310 to enter a unit.

It can be seen that, in the process of air flowing in the data center machine room, the air can flow linearly in the second horizontal portion 232, the first air duct 111 and the third horizontal portion 242, and can also flow straight in and out in the first air duct 111 of the housing 110, only two inflection points need to be reserved in the air supply duct 230 and the air return duct 240, so that the air flow resistance is small, the flow rate is high, the electric energy required for driving the air to flow is less, and the refrigeration efficiency of the interior of the space 300 to be cooled is higher. In addition, the ceiling hot channel 310 of the space 300 to be cooled is used for conveying air, so that the length of an air pipe of the unit can be reduced, the space required by the unit can be reduced, the use efficiency of the space 300 to be cooled is improved, and the resistance of the air is further reduced.

In fig. 8, the first fan 120 is installed at the outlet of the first air duct 111 and located outside the housing 110, and correspondingly, other types of units may be adopted, for example, in fig. 10, the first fan 120 may be installed at the inlet of the first air duct 111 and located inside the housing 110. Similarly, other units may be mounted on the top of the space 300 to be cooled. Furthermore, since the unit is installed outside the space 300 to be cooled, the inlet of the first air duct 111 may also be open, that is, the inlet of the first air duct 111 may communicate with all directions of the housing 110, so as to suck air from all directions, reduce the return air resistance, and improve the overall energy efficiency.

(2) The units being mounted on the outside of the space 300 to be cooled

Referring to fig. 11 and 12, the indirect evaporative cooling unit 100 is installed on the outer side of the space 300 to be cooled, and the number of the unit may be multiple. The outlet of the first air duct 111 is far away from the space 300 to be cooled relative to the inlet of the first air duct 111, the data center machine room comprises a first transfer air duct 220, the air supply duct 230 and the return air duct 240 are both linear, one end of the air supply duct 230 is communicated with the outlet of the first air duct 111 through the first transfer air duct 220, the other end of the air supply duct 230 is used for being communicated with the bottom of the space 300 to be cooled, and the return air duct 240 is used for being communicated with the ceiling hot channel 310 at the top of the space 300 to be cooled. In this way, the units input cold air from the bottom of the space to be cooled 300 and suck hot air from the top of the space to be cooled 300, so that the cold air flows from bottom to top inside the space to be cooled 300, and the servers 320 in the space to be cooled 300 are sufficiently cooled.

Specifically, the first transfer air duct 220 is L-shaped, the first transfer air duct 220 includes a first vertical portion 221 and a first horizontal portion 222 that are communicated with each other, an inlet is opened on a side surface of the first vertical portion 221 and is communicated with an outlet of the first air duct 111, and the first horizontal portion 222 is located below the first vertical portion 221 and is communicated with the air supply duct 230. Thus, the hot air enters the return air duct 240 and blows out from the supply air duct 230, the air only passes through two inflection points, the air flow resistance is relatively small, the flow rate is high, the electric energy required by the driving air flow is less, and the refrigeration efficiency of the interior of the space to be cooled 300 is high. In addition, the ceiling hot channel 310 of the space 300 to be cooled is used for conveying air, so that the length of an air pipe of the unit can be reduced, the space required by the unit can be reduced, the use efficiency of the space 300 to be cooled is improved, and the resistance of the air is further reduced.

In fig. 11, the first fan 120 is installed at the outlet of the first air duct 111 and located outside the housing 110, and correspondingly, other types of units may be adopted, for example, in fig. 13, the first fan 120 may be installed at the inlet of the first air duct 111 and located inside the housing 110. Similarly, other types of units may be mounted on the outside of the space 300 to be cooled. Furthermore, since the unit is installed outside the space 300 to be cooled, the inlet of the first air duct 111 may also be open, that is, the inlet of the first air duct 111 may communicate with all directions of the housing 110, so as to suck air from all directions, reduce the return air resistance, and improve the overall energy efficiency.

(3) The units being mounted inside the space 300 to be cooled

Referring to fig. 14 and 15, the indirect evaporative cooling unit 100 is installed inside a space 300 to be cooled, and the number of the unit is plural. The outlet of the first air duct 111 is close to the center of the space 300 to be cooled relative to the inlet of the first air duct 111, the indirect evaporative cooling unit 100 comprises a second through-connection air duct 250, the air supply air duct 230 and the air return air duct 240 are both linear, one end of the air return air duct 240 is communicated with the inlet of the first air duct 111 through the second through-connection air duct 250, the other end of the air return air duct 240 is used for being communicated to a ceiling hot channel 310 at the top of the space 300 to be cooled, and the air supply air duct 230 is used for being communicated to the bottom of the space 300 to. In this way, the units input cold air from the bottom of the space to be cooled 300 and suck hot air from the top of the space to be cooled 300, so that the cold air flows from bottom to top inside the space to be cooled 300, and the servers 320 in the space to be cooled 300 are sufficiently cooled.

Specifically, the second air transferring pipe 250 is L-shaped, the second air transferring pipe 250 includes a fourth vertical portion 251 and a fourth horizontal portion 252, which are communicated with each other, an inlet is opened on a side surface of the fourth vertical portion 251 and is communicated with an inlet of the first air duct 111, and the fourth horizontal portion 252 is located above the fourth vertical portion 251 and is communicated with the return air pipe 240. Thus, the hot air enters the return air duct 240 and blows out from the supply air duct 230, and the air passes through only two inflection points, so that the air flow resistance is small, the flow rate is high, the electric energy required by the driving air flow is less, and the refrigeration efficiency of the interior of the space 300 to be cooled is higher.

In fig. 14, the first fan 120 is installed at the outlet of the first air duct 111 and located outside the housing 110, and correspondingly, other types of units may be adopted, for example, in fig. 16, the first fan 120 may be installed at the inlet of the first air duct 111 and located inside the housing 110. Similarly, other types of units may be mounted on the outside of the space 300 to be cooled.

It can be seen that the three units provided in this embodiment are assembled in the space 300 to be cooled, so that the air experiences two inflection points at most in the units, most of the flowing processes of the air are all straight lines, and the process of flowing through the first air duct 111 of the housing 110 is straight in and straight out, so that the air flowing resistance is small, the flowing speed is high, and not only is less electric energy required for driving the air to flow, but also the refrigeration efficiency inside the space 300 to be cooled is high.

It will be appreciated that the first transfer duct 220, the supply duct 230, the return duct 240, and the second transfer duct 250 may take other forms, such as a certain arc in the length direction, an arc tube, etc.

The embodiment further provides a data center machine room, which includes the space 300 to be cooled and any one of the above indirect evaporative cooling units 100, and the assembly form of the indirect evaporative cooling unit 100 in the space 300 to be cooled can adopt any one of the above, so that the electric energy consumed by refrigeration in the data center machine room is less, the heat dissipation performance in the space 300 to be cooled is better, and the data center machine room plays a good role in normal operation of internal equipment.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An indirect evaporative cooling unit is characterized by comprising a shell (110), an evaporator (130), a heat exchange core body (140), a first fan (120), a condenser (170) and a second fan (180); the shell (110) is provided with a first air duct (111) and a second air duct (112), and the first air duct (111) is linear and is crossed with the second air duct (112); the evaporator (130) and the heat exchange core (140) are installed in the first air duct (111), wherein the heat exchange core (140) is located at the intersection of the first air duct (111) and the second air duct (112); the first fan (120) is arranged on the first air duct (111) and used for driving air to flow into the first air duct (111) and sequentially pass through the heat exchange core (140) and the evaporator (130); the second fan (180) is arranged on the second air duct (112) and used for driving air to flow into the second air duct (112) and flow through the heat exchange core (140) and the condenser (170) in sequence.

2. The indirect evaporative cooling unit of claim 1, wherein the first air duct (111) comprises an air inlet side and an air outlet side, and the first fan (120) is disposed on the air inlet side or the air outlet side of the first air duct (111).

3. The indirect evaporative cooling unit of claim 1, wherein the first fan (120) and the second fan (180) are both mounted on the housing (110).

4. The indirect evaporative cooling unit of claim 1, further comprising a filter assembly (150), wherein the filter assembly (150) is disposed in the first air duct (111), and the filter assembly (150) and the evaporator (130) are respectively located on opposite sides of the heat exchange core (140).

5. The indirect evaporative cooling unit of claim 1, wherein the first fan (120) is movably disposed on the housing (110), the first fan (120) being disposed outside the housing (110) when the unit is in the first state, and the first fan (120) being disposed inside the housing (110) when the unit is in the second state.

6. The indirect evaporative cooling unit of any of claims 1 to 5, further comprising a spray assembly disposed within the second air duct (112) for spraying water onto the heat exchange core (140).

7. The indirect evaporative cooling unit of claim 6, wherein the spray assembly comprises a sprayer (162) disposed near the inlet side of the second air duct (112) or near the outlet side of the second air duct (112), a water pan (200) for receiving water sprayed from the sprayer (162), and a circulating water pump (210) communicating the water pan (200) with the sprayer (162).

8. The indirect evaporative cooling unit of claim 7, wherein the spray assembly further comprises a water collector (161), and the spray assembly is disposed on a side of the evaporator (130) adjacent to the heat exchange core (140).

9. A data center room, comprising:

the indirect evaporative cooling unit of any of claims 1-8;

a space (300) to be cooled;

an air supply duct (230); and

a return air duct (240);

wherein: one end of the air supply pipe (230) is communicated with an outlet of the first air duct (111), the other end of the air supply pipe (230) is communicated with the space (300) to be cooled, one end of the air return pipe (240) is communicated with an inlet of the first air duct (111), and the other end of the air return pipe (240) is communicated with the space (300) to be cooled.

10. The data center machine room of claim 9, further comprising a first transfer air duct (220), wherein the supply air duct (230) and the return air duct (240) are both linear, the indirect evaporative cooling unit is mounted on an outer side surface of the space to be cooled (300), an outlet of the first air duct (111) is disposed toward the space to be cooled (300), an inlet of the first air duct (111) is disposed away from the space to be cooled (300), one end of the supply air duct (230) is communicated with the outlet of the first air duct (111) through the first transfer air duct (220), the other end of the supply air duct (230) is communicated to the bottom of the space to be cooled (300), and the return air duct (240) is communicated to the top of the space to be cooled (300).

11. The data center room of claim 10, wherein the first transfer air duct (220) is L-shaped, the first transfer air duct (220) comprises a first vertical portion (221) and a first horizontal portion (222) which are communicated with each other, the side surface of the first vertical portion (221) is provided with an inlet and is communicated with the outlet of the first air duct (111), and the first horizontal portion (222) is located below the first vertical portion (221) and is communicated with the supply air duct (230).

12. The data center room of claim 9, wherein the indirect evaporative cooling unit is installed at the top of the space to be cooled (300), the supply air duct (230) and the return air duct (240) are both L-shaped, the supply air duct (230) includes a second vertical portion (231) and a second horizontal portion (232) that are communicated with each other, the return air duct (240) includes a third vertical portion (241) and a third horizontal portion (242) that are communicated with each other, the second horizontal portion (232), the first air duct (111), and the third horizontal portion (242) are sequentially communicated and located on the same straight line, and the second vertical portion (231) and the third vertical portion (241) are used for being connected to both sides of the top of the space to be cooled (300).

13. The data center machine room of claim 9, further comprising a second switching air duct (250), wherein the indirect evaporative cooling unit is installed inside the space to be cooled (300), the air supply duct (230) and the air return duct (240) are both linear, one end of the air return duct (240) is communicated with an inlet of the first air duct (111) through the second switching air duct (250), the other end of the air return duct (240) is used for being communicated with the top of the space to be cooled (300), one end of the air supply duct (230) is communicated with an outlet of the first air duct (111), and the other end of the air supply duct (230) is communicated with the bottom of the space to be cooled (300).

14. The data center room of claim 13, wherein the second transfer air duct (250) is L-shaped, the second transfer air duct (250) comprises a fourth vertical portion (251) and a fourth horizontal portion (252) which are communicated with each other, a side surface of the fourth vertical portion (251) is provided with an inlet and is communicated with an inlet of the first air duct (111), and the fourth horizontal portion (252) is located above the fourth vertical portion (251) and is communicated with the return air duct (240).