CN213713333U

CN213713333U - Indirect evaporative cooling system

Info

Publication number: CN213713333U
Application number: CN202021995792.8U
Authority: CN
Inventors: 童永煌; 杜成华; 孙益顺
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-07-16
Anticipated expiration: 2030-09-11

Abstract

The application provides an indirect evaporative cooling system, through holding the cooling module of intracavity at the casing including casing and setting, the cooling module includes the mounting bracket, heat exchanger and refrigeration subassembly set up on the mounting bracket, the mounting bracket sets up and holds the intracavity at the casing, just also form the cooling module with parts integration equipment such as heat exchanger and refrigeration subassembly on the mounting bracket, then install the cooling module in the casing through the mounting bracket again, and heat exchanger and refrigeration subassembly, the integrated equipment of parts such as mounting bracket can realize production under the online, and when the field installation, only need with integrated cooling module install in the casing can, great saving the field installation required time, quick installation has been realized, the effectual installation effectiveness that has improved.

Description

Indirect evaporative cooling system

Technical Field

The application relates to the technical field of cooling, in particular to an indirect evaporative cooling system.

Background

With the rapid increase in global demand for computing, data storage, and communications technologies, and the growing demand for data centers in recent years, data centers often include large amounts of computer hardware, maintaining the temperature within the data center at a low temperature helps prevent computer hardware from overheating and failing, may improve the reliability and useful life of the data center, and may reduce downtime for repair or replacement.

At present, the cooling of data center computer lab can adopt indirect evaporative cooling mode to go on, and is specific, and indirect evaporative cooling system is including heat exchanger, condenser, evaporimeter, compressor, forced draught blower and exhaust fan etc. still including the casing, during the installation, at first with the casing setting outside the data center computer lab, then with parts such as heat exchanger, condenser, evaporimeter, compressor, forced draught blower and exhaust fan respectively independent installation in the casing. Indoor return air enters the heat exchanger through the air pipe, outdoor fresh air also enters the heat exchanger, the indoor return air and the outdoor fresh air are subjected to heat exchange in the heat exchanger, the indoor return air can be cooled and cooled again through the evaporator and then sent back to the indoor environment, and the outdoor fresh air can be condensed and discharged through the condenser.

However, in the existing indirect evaporative cooling system, each component is independently arranged, and needs to be respectively installed when being installed on site, so that the installation efficiency is low.

SUMMERY OF THE UTILITY MODEL

The application provides an indirect evaporative cooling system, has solved among the current indirect evaporative cooling system each part relatively independent setting, and the field installation need be installed respectively and lead to the lower problem of installation effectiveness.

An embodiment of the present application provides an indirect evaporative cooling system, includes: the cooling module is arranged in the housing accommodating cavity;

the cooling module comprises a mounting rack, a heat exchanger and a refrigerating assembly, the heat exchanger and the refrigerating assembly are fixedly arranged on the mounting rack, and the mounting rack is fixedly arranged in the accommodating cavity of the shell;

the shell is provided with an indoor air inlet, an indoor air supply outlet, an outdoor air inlet and an outdoor air outlet, the heat exchanger is internally provided with a first air duct and a second air duct which are arranged in a staggered manner, two ends of the first air duct are respectively communicated with the indoor air inlet and the indoor air supply outlet, two ends of the second air duct are respectively communicated with the outdoor air inlet and the outdoor air outlet, indoor return air can enter the first air duct of the heat exchanger through the indoor air inlet, outdoor fresh air can enter the second air duct of the heat exchanger through the outdoor air inlet, after heat exchange is carried out on the indoor return air and the outdoor fresh air in the first air duct and the second air duct which are arranged in a staggered manner, the temperature of the indoor return air can be reduced and can be sent back to the machine room from the indoor air supply outlet, and the outdoor fresh air after heat exchange can be discharged from the outdoor air, the energy consumption required by cooling is reduced. And because heat exchanger and refrigeration subassembly are fixed to be set up on the mounting bracket, the mounting bracket is fixed to be set up in the casing, form the cooling module on assembling the mounting bracket with parts such as heat exchanger and refrigeration subassembly promptly, then install the cooling module in the casing through the mounting bracket again, and heat exchanger and refrigeration subassembly, the integrated equipment of parts such as mounting bracket can realize production under on line, and when the field installation, only need with integrated cooling module install in the casing can, great saving the field installation required time, quick installation has been realized, the effectual installation effectiveness that has improved.

In one possible implementation, the heat exchanger includes first and second opposing sides, a third side connecting the first and second sides, and a fourth side opposing the third side;

the first side face and the third side face are intersected to form a first vertex angle end, the second side face and the fourth side face are intersected to form a second vertex angle end, the second vertex angle end is fixedly connected with the mounting rack, the first vertex angle end is in sliding connection with the top wall of the shell, and the mounting rack is fixedly connected with the bottom wall of the shell. That is, one diagonal surface of the heat exchanger is parallel to the shell, and the other diagonal surface is perpendicular to the shell, so that the first side surface, the second side surface, the third side surface and the fourth side surface are obliquely arranged on the top wall or the bottom wall of the shell, and thus, the space in the horizontal direction of the top wall and the bottom wall of the shell (mounting rack) can be vacated, and other components (such as a refrigeration assembly) can be arranged. In addition, the first side surface, the second side surface, the third side surface and the fourth side surface can also provide a setting space for setting other components, so that the space utilization rate is further improved, and the space occupied by the indirect evaporative cooling system is effectively reduced.

In a possible implementation manner, the refrigeration assembly comprises a compressor, a condenser and an evaporator which are arranged on the mounting frame, the compressor is respectively connected with the condenser and the evaporator, the condenser is located between the heat exchanger and the outdoor air outlet, and the evaporator is located between the heat exchanger and the indoor air supply outlet. The compressor is used for realizing the circulation of refrigerant (such as refrigerant like Freon), and the indoor return air after the heat exchange of the heat exchanger passes through the evaporator and exchanges heat with the refrigerant so as to realize secondary cooling, thereby further reducing the temperature of the indoor return air. And the outdoor fresh air after heat exchange of the heat exchanger is discharged outdoors after passing through the condenser, so that the heat of the condenser can be taken away, and the condenser can be cooled quickly.

In a possible implementation manner, the air inlet of the first air duct is located on the first side surface, the air outlet of the first air duct is located on the second side surface, the air inlet of the second air duct is located on the third side surface, and the air outlet of the second air duct is located on the fourth side surface;

the condenser is located on the fourth side and arranged in parallel with the fourth side, and the evaporator is located on the second side and arranged in parallel with the second side. Therefore, indoor return air coming out of the air outlet of the first air duct can directly enter the evaporator on the second side face to be subjected to heat exchange and cooled again, outdoor exhaust air coming out of the air outlet of the second air duct can directly enter the condenser on the fourth side face to be subjected to heat exchange, and the use of air pipes for communicating the heat exchanger with the condenser and the evaporator is reduced. Meanwhile, the condenser and the evaporator are respectively arranged on the fourth side face and the second side face of the heat exchanger in parallel, so that the distribution rationality of all parts is improved, the space utilization rate is improved, and the occupied space of an indirect evaporative cooling system is reduced.

In a possible implementation manner, the mounting rack includes a support plate, a support beam, and a plurality of support columns, one end of each support column is fixed on the support plate, the other end of each support column is fixed on the heat exchanger, the support columns are connected by the support beam, and the support beam is parallel to the first vertex angle end and the second vertex angle end;

the mounting bracket still includes first support piece and second support piece, first support piece is located in the backup pad, the second support piece sets up on the supporting beam, the condenser with evaporimeter one end is passed through respectively first support piece sets up in the backup pad, the condenser with the other end of evaporimeter is passed through respectively the second support piece sets up in the backup pad.

In a possible implementation manner, a groove matched with the end portions of the evaporator and the condenser is formed in one surface, facing the heat exchanger, of the first support piece, and one ends of the condenser and the evaporator are respectively clamped in the groove; one end of the condenser is fixed by clamping the end parts of the condenser and the evaporator with the groove.

The second support piece includes first spacing portion and the spacing portion of second, first spacing portion one end with the supporting beam connects, the first spacing portion other end with the spacing portion of second connect and form with the condenser with evaporimeter tip complex open slot, the condenser with the other end of evaporimeter is blocked respectively and is established in the open slot. The first limiting part limits the evaporator and the condenser to move towards the direction parallel to the plane direction of the second side surface and the fourth side surface, and the second limiting part plays a role in supporting and limiting the evaporator and the condenser, so that the other ends of the evaporator and the condenser can be arranged on the second side surface and the fourth side surface.

Make the both ends of evaporimeter and condenser respectively through first support piece and the fixed setting of second support piece on the mounting bracket on the second side and the fourth side of heat exchanger, it is concrete, utilize first support piece and second support piece and evaporimeter and condenser tip block's mode to realize fixing, can avoid welding process, and simultaneously, also can reduce the relevance of the setting between condenser and evaporimeter and the heat exchanger, be convenient for realize carrying out solitary maintenance to condenser and evaporimeter, and can not influence the heat exchanger.

In a possible implementation manner, the refrigeration assembly further comprises a spraying assembly, the spraying assembly comprises a sprayer, a conveying pump, a liquid storage tank and a liquid loading disc, the sprayer is connected with the conveying device, and the conveying pump is connected with the liquid storage tank; the spray assembly is used to spray a cooling fluid, such as cooling water, onto the heat exchanger to further reduce the temperature of the indoor return air flowing through the heat exchanger.

The sprayer is arranged on the third side face, the delivery pump, the liquid storage tank and the liquid accumulating disc are arranged on the supporting plate, and the liquid accumulating disc is located below the heat exchanger. Because first apex angle end is connected with the casing roof, makes the spray thrower setting on the third side, can be located higher setting height, multiplicable and indoor return air cooling heat transfer's area and heat transfer time, crisscross between the cooling liquid that the spray thrower sprayed and the indoor return air that gets into from first side simultaneously, help further improving the cooling effect to indoor return air.

In a possible implementation manner, the spraying assembly further comprises a baffle piece, and the baffle piece is arranged around the periphery of the third side face. The baffle piece can play a role in preventing water at the spraying position of the sprayer from sputtering all around, and spraying cooling liquid is prevented from sputtering into the shell.

In a possible implementation manner, the air conditioner further comprises a filter member, wherein the filter member is arranged on the first side surface, and the filter member covers the first air duct air inlet. The filtering piece can purify and filter the indoor return air entering the heat exchanger.

In a possible implementation manner, the top wall of the housing has a mounting seat thereon, the mounting seat has a slide rail thereon, and the first vertex angle end has a sliding member thereon, and the sliding member is slidably disposed in the slide rail. The first apex angle end of heat exchanger sets up in the mount pad of casing roof through the mode that slides and set up promptly, when will cooling the module installation setting in the casing, can push the slide rail through the frock in with first apex angle end, just can set up cooling module in the casing, roof and heat exchanger connected mode need not adopt modes such as screw or welding, have avoided installer's high altitude construction, have improved the security of installation.

In one possible implementation manner, the mounting seat comprises a first mounting part and a second mounting part, and a gap is formed between the first mounting part and the second mounting part to form the sliding rail;

the sliding part comprises a sliding end and a limiting end, one end of the sliding end is connected with the first vertex angle end, the other end of the sliding end is connected with the limiting end, the sliding end can slide in the sliding rail, and the width of the limiting end is larger than that of the sliding rail. When the installation, adopt the frock at first to hoist the cooling module and make spacing end be located the slide rail and keep away from one side of casing diapire, then promote the cooling module, push the slide end in the slide rail, behind the cooling module was decontroled to the frock, because the width of spacing end is big than the slide rail width, spacing end can not deviate from in the slide rail, just also make the cooling module hang and establish on the mount pad to hold the intracavity with the cooling module setting at the casing.

In a possible implementation manner, the housing accommodating cavity further includes a third blocking plate, and the third blocking plate separates the housing accommodating cavity to form a first accommodating cavity and a second accommodating cavity;

the cooling module is arranged in the first accommodating cavity and divides the first accommodating cavity into four closed chambers, namely a first indoor cavity, a first outdoor cavity, a second indoor cavity and a second outdoor cavity; specifically, two diagonal planes of the heat exchanger are used as separating planes, and when the cooling module is arranged in the first accommodating cavity, the first accommodating cavity can be separated into four cavities.

The first side surface is positioned in the first indoor cavity, the indoor air inlet is positioned on the side wall of the first indoor cavity, and the first indoor cavity is respectively communicated with the indoor air inlet and the first air duct air inlet; the second side surface is positioned in the second indoor cavity, the indoor air supply outlet is positioned on the side wall of the second indoor cavity, and the second indoor cavity is respectively communicated with the indoor air supply outlet and the first air duct air outlet;

the third side surface is positioned in the first outdoor cavity, the outdoor air inlet is positioned on the side wall of the first outdoor cavity, and the first outdoor cavity is respectively communicated with the outdoor air inlet and the second air duct air inlet; the fourth side surface is positioned in the second outdoor cavity, and the second outdoor cavity is respectively communicated with the outdoor air outlet and the second air duct air outlet.

The cooling module is arranged in the first accommodating cavity and is separated from the first accommodating cavity to form a first indoor cavity, a first outdoor cavity, four closed cavities of a second indoor cavity and a second outdoor cavity, the first indoor cavity realizes the communication between an indoor air inlet and a first air duct air inlet, the second indoor cavity realizes the communication between an indoor air supply outlet and a first air duct air outlet, the first outdoor cavity realizes the communication between an outdoor air inlet and a second air duct air inlet, the second outdoor cavity realizes the communication between an outdoor air outlet and a second air duct air outlet, an air duct is formed in the shell by utilizing the arrangement mode of the shell and the cooling module, the indoor air inlet can be realized without an air duct, the indoor air supply outlet and the first air duct, the outdoor air inlet and the outdoor air outlet are communicated with the second air duct, and the use of the air duct is reduced.

In a possible implementation, the cooling module further includes a first barrier plate and a second barrier plate, the heat exchanger further includes a fifth side connecting the first side, the second side, the third side, and the fourth side, and a sixth side opposite to the fifth side, the first side intersects the fourth side to form a third vertex end, the second side intersects the third side to form a fourth vertex end, and the fifth side and the sixth side abut against the inner sidewall of the first receiving cavity;

the first blocking plate is connected with the third vertex angle end, the first blocking plate is abutted to the side wall of the first accommodating cavity, the second blocking plate is connected with the fourth vertex angle end, the second blocking plate is abutted to the side wall of the first accommodating cavity, and the heat exchanger, the first blocking plate and the second blocking plate separate the first accommodating cavity into four closed chambers.

and a third supporting piece and a fourth supporting piece are arranged at two ends of the supporting beam, and the first blocking plate and the second blocking plate are arranged in the first accommodating cavity through the third supporting piece and the fourth supporting piece. The first barrier plate and the second barrier plate are fixed through the third supporting piece and the fourth supporting piece on the mounting frame, and installation is facilitated.

In a possible implementation mode, the air conditioner further comprises an air exhaust fan and an air supply fan which are arranged in the first accommodating cavity, wherein the air exhaust fan is located in the second outdoor cavity, the air exhaust fan is respectively communicated with the second outdoor cavity and the outdoor air outlet, outdoor fresh air after heat exchange enters the second outdoor cavity and is exhausted outdoors from the outdoor air outlet under the action of the air exhaust fan.

The air supply fan is located the second indoor intracavity, just the air supply fan respectively with the second indoor intracavity with indoor supply-air outlet intercommunication, the indoor return air after the heat transfer cooling gets into the second indoor intracavity to in sending back the computer lab from indoor supply-air outlet through the effect of air supply fan.

In a possible implementation manner, the air exhaust system further comprises an electric control module, the electric control module is arranged in the second accommodating cavity, the second accommodating cavity is communicated with the air exhaust fan, and the outdoor air outlet is located on the side wall of the second accommodating cavity and is communicated with the second accommodating cavity. The outdoor fresh air after heat exchange enters the second outdoor cavity, is discharged into the second accommodating cavity under the action of the exhaust fan and is then discharged from the outdoor exhaust outlet. The second holds the chamber and can regard as the space that holds electronic control module on the one hand, and on the other hand, the second holds the setting in chamber and also can be convenient for overhaul the fan of airing exhaust.

In one possible implementation manner, the housing comprises a housing body and a first side plate and a second side plate which are detachably arranged on the housing body;

the first side plate and the second side plate are arranged oppositely, the shell body, the first side plate and the second side plate jointly enclose the shell accommodating cavity, and an access hole is formed in the first side plate or the second side plate. Because first curb plate and second curb plate can dismantle the setting with the casing, can realize two sets of indirect evaporative cooling system's mirror image setting, shared space when can the easy access help reducing multiunit indirect evaporative cooling system setting simultaneously.

Drawings

FIG. 1 is a schematic disassembled structure view of an indirect evaporative cooling system provided in an embodiment of the present application;

FIG. 2 is a schematic diagram illustrating an internal structure of an indirect evaporative cooling system according to an embodiment of the present disclosure;

FIG. 3 is a schematic air flow diagram of an indirect evaporative cooling system according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of an air flow direction of another evaporative cooling system provided in accordance with an embodiment of the present application;

fig. 5 is a schematic structural diagram of a cooling module according to an embodiment of the present application;

fig. 6 is a schematic side view of a cooling module according to an embodiment of the present disclosure;

FIG. 7 is a partial enlarged view of portion A of FIG. 6;

FIG. 8 is a partial enlarged view of portion B of FIG. 6;

FIG. 9 is an enlarged view of a portion of a cooling module and a housing of an indirect evaporative cooling system according to an exemplary embodiment of the present disclosure;

fig. 10 is a partial enlarged view of portion C of fig. 9;

fig. 11 is a schematic structural diagram of a first vertex angle end of a heat exchanger according to an embodiment of the present application.

Description of reference numerals:

100-an indirect evaporative cooling system; 10-a housing; 101-a housing receiving cavity; 102-a first receiving cavity; 102 a-a first indoor chamber, 102 b-a first outdoor chamber; 102 c-a second chamber inner chamber; 102 d-a second outdoor chamber; 103-a second containing cavity; 10 a-a top wall; 10 b-a bottom wall; 10 c-a first side wall; 10 d-a second side wall; 11-a housing body; 12-a first side panel; 13-a second side panel; 131-a maintenance port; 14-indoor air inlet; 15-indoor air supply outlet; 16-outdoor air inlet; 17-outdoor air outlet; 18-a mounting seat; 181-a slide rail; 182-a first mounting portion; 183-second mounting portion; 184-sealing cotton; 19-a third barrier panel;

20-a cooling module; 21-a mounting frame; 211-a support plate; 212-a support beam; 213-support column; 214-a first support; 215-a second support; 2151-a first stopper; 2152-a second stopper; 216-a third support; 217-a fourth support; 22-a heat exchanger; 220-a first side; 221-a second side; 222-a third side; 223-a fourth side; 224-fifth side; 225-first vertex end; 2251-a slider; 2251 a-sliding end; 2251 b-a limiting end; 226-a second vertex end; 227-a third vertex end; 228-a fourth vertex end; 23-a refrigeration component; 231-a compressor; 232-a condenser; 233-an evaporator; 234-a sprayer; 235-a delivery pump; 236-a liquid storage tank; 237-hydrops pan; 28-a barrier member; 24-a filter element; 25-a first barrier plate; 26-a second barrier panel;

30-an exhaust fan; 40-an air supply fan; 50-an electronic control module;

200-machine room; 300-air duct.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

In order to prevent hardware devices from overheating and causing failure, the temperature in the data center is maintained at a low temperature, so as to ensure the reliability and the service life of the data center. Traditional data center computer lab's cooling generally adopts air conditioner refrigerating system, also utilizes the refrigerant promptly, when becoming liquid by the gaseous state like freon, releases a large amount of heats, when becoming gaseous state by the liquid state, absorbs a large amount of heats, and the low pressure steam of refrigerant is inhaled by the compressor and is compressed and arrange to the condenser behind the high pressure steam, and the continuous circulation of indoor air flows, reaches the purpose that reduces the temperature. However, the air conditioner consumes more electric energy, the energy consumption of the air conditioner accounts for more than 35% of the total energy consumption of the data center, the electric energy consumption is serious, a great deal of resource waste is caused, and the use cost of the data center is greatly increased.

At present, in the prior art, refrigeration of a data center is realized by using an indirect evaporative cooling mode, wherein the indirect evaporative cooling refers to a process of transferring cold energy of wet air (secondary air) obtained by direct evaporative cooling to air to be processed (primary air) through a non-direct contact type heat exchanger to realize air equal-humidity cooling. The indirect evaporative cooling technology can obtain cold energy from natural environment, thereby greatly reducing the energy consumption required by refrigeration. The indirect evaporative cooling system generally comprises a heat exchanger, wherein indoor air and outdoor air are in cross circulation in the heat exchanger so as to realize heat exchange, and the indirect evaporative cooling system also comprises a cold supplement system so as to further cool the indoor air when the temperature difference between the outdoor air and the indoor air is lower, wherein the cold supplement system comprises a condenser, an evaporator, a compressor and the like. After the components are prepared on line, when the components are installed on site, the shell needs to be arranged outside a data center machine room, and then the components such as the heat exchanger, the condenser, the evaporator, the compressor and the like are independently installed in the shell. Indoor return air enters the heat exchanger through the air pipe, outdoor fresh air also enters the heat exchanger, the indoor return air and the outdoor fresh air are subjected to heat exchange in the heat exchanger, the indoor return air can be cooled and cooled again through the evaporator and then sent back to the indoor environment, and the outdoor fresh air can be condensed and discharged through the condenser.

However, in the above indirect evaporative cooling technology, the heat exchanger, the condenser, the evaporator, the compressor, and other components need to be installed separately during field installation, which results in low installation efficiency, and the installation utilization rate of the distributed space of each component is low, which results in large space occupied by the indirect evaporative cooling system. In addition, the management welding among the condenser, the evaporator and the compressor is performed on site, and problems such as component unavailability, welding connection error and abnormal use may occur, which further prolongs the installation time and reduces the installation efficiency.

Based on the technical problem, the embodiment of the present application provides an indirect evaporative cooling system, which may be applied to cooling a data center room, or may also be applied to cooling in a work production site (such as a laboratory including a large-scale detection device, etc.) that needs to maintain a low temperature for a long time. This indirect evaporative cooling system is through the fixed setting of heat exchanger and refrigeration subassembly becoming the cooling module on the mounting bracket, and make the fixed setting of mounting bracket hold the intracavity at the casing, just namely form the cooling module with parts integration equipment such as heat exchanger and refrigeration subassembly on the mounting bracket, then install the cooling module in the casing through the mounting bracket, and heat exchanger and refrigeration subassembly, the integrated equipment of parts such as mounting bracket can realize production under the line, and when the field installation, only need with integrated cooling module install in the casing can, great saving the field installation required time, quick installation has been realized, the effectual installation effectiveness that has improved.

The indirect evaporative cooling system is used for cooling a data center room, and the following description will be given in detail by way of example.

Referring to fig. 1, an indirect evaporative cooling system 100 provided by the embodiment of the present application includes a housing 10 and a cooling module 20, where the housing 10 has a housing accommodating cavity 101 therein, and the cooling module 20 is disposed in the housing accommodating cavity 101.

Referring to fig. 2, the cooling module 20 includes a mounting frame 21, a heat exchanger 22 and a cooling module 23, the heat exchanger 22 provides a place for heat exchange between outdoor air and indoor air, specifically, the housing 10 has an indoor air inlet 14, an indoor air supply outlet 15, an outdoor air inlet 16 and an outdoor air outlet 17, the heat exchanger 22 may have a first air duct (not shown) and a second air duct arranged in a staggered manner, one end of the first air duct is communicated with the indoor air inlet 14, the other end of the first air duct is communicated with the indoor air supply outlet 15, one end of the second air duct is communicated with the outdoor air inlet 16, and the other end of the second air duct is communicated with the outdoor air outlet 17.

Referring to fig. 3 and 4, indoor return air in the data center machine room 200 can enter the first air duct of the heat exchanger 22 through the indoor air inlet 14, outdoor fresh air can enter the second air duct of the heat exchanger 22 through the outdoor air inlet 16, after heat exchange is performed on the indoor return air and the outdoor fresh air in the first air duct and the second air duct which are arranged in a staggered mode, the temperature of the indoor return air can be reduced and the indoor return air can be sent back to the machine room 200 from the indoor air supply outlet 15, and the outdoor fresh air after heat exchange can be discharged from the outdoor air outlet 17, so that cooling of the data center machine room 200 is realized by using the cold energy of the outdoor fresh air, and energy consumption.

The cooling module 23 may cool the indoor return air after exchanging heat with the outdoor fresh air in the heat exchanger 22 again, so as to further reduce the temperature of the indoor return air. The refrigeration assembly 23 may be a refrigeration system composed of an evaporator, a condenser and a compressor, or may also be a refrigerant spraying system, or the refrigeration assembly 23 may also be a combination of the two, or the refrigeration assembly 23 may also be composed of other refrigeration system components.

As shown in fig. 2, the heat exchanger 22 and the refrigeration assembly 23 are fixedly arranged on the mounting frame 21, the mounting frame 21 is fixedly arranged in the casing 10, that is, the heat exchanger 22, the refrigeration assembly 23 and other components are integrally assembled on the mounting frame 21 to form the cooling module 20, then the cooling module 20 is installed in the casing 10 through the mounting frame 21, the heat exchanger 22, the refrigeration assembly 23, the mounting frame 21 and other components are integrally assembled on line to realize production, and during field installation, only the cooling module 20 integrated into a whole is required to be installed in the casing 10, the time required by field installation is greatly saved, rapid installation is realized, and the installation efficiency is effectively improved.

Specifically, as shown in fig. 5, in the embodiment of the present application, the heat exchanger 22 includes a first side 220 and a second side 221 opposite to each other, a third side 222 connecting the first side 220 and the second side 221, a fourth side 223 opposite to the third side 222, a fifth side 224 connecting the first side 220, the second side 221, the third side 222, and the fourth side 223, and a sixth side (not shown in the figure) opposite to the fifth side 224, and the heat exchanger 22 may have a hexagonal-like shape.

Wherein the first side 220 and the third side 222 intersect to form a first vertex end 225, the second side 221 and the fourth side 223 intersect to form a second vertex end 226, the first side 220 and the fourth side 223 intersect to form a third vertex end 227, the second side 221 and the third side 222 intersect to form a fourth vertex end 228, as shown in fig. 2, the second vertex end 226 is fixedly connected to the mounting bracket 21, the first vertex end 225 is slidably connected to the top wall 10a of the casing 10, and the mounting bracket 21 is fixedly connected to the bottom wall 10b of the casing 10, i.e. one diagonal surface of the heat exchanger 22 is parallel to the bottom wall (horizontal direction) of the casing 10, and the other diagonal surface is perpendicular to the bottom wall of the casing 10, so that the first side 220, the second side 221, the third side 222 and the fourth side 223 are obliquely arranged to the top wall 10a or the bottom wall 10b of the casing 10, so as to empty the space between the top wall 10a of the casing 10 and the bottom wall 10b of the casing 10 (mounting bracket 21) in the horizontal direction, can be used to provide other components (e.g., the refrigeration assembly 23) and can provide improved space utilization compared to prior art arrangements in which the first side 220 and the second side 221 of the heat exchanger 22 are disposed in parallel on the top wall 10a and the bottom wall 10b, respectively, of the heat exchanger 22. In addition, the first side 220, the second side 221, the third side 222, and the fourth side 223 may also provide a space for disposing other components, so as to further improve the space utilization rate and effectively reduce the space occupied by the indirect evaporative cooling system 100.

The second vertex angle end 226 and the mounting frame 21 may be fixed by a screw connection, a welding connection or other connection means, and the connection between the mounting frame 21 and the bottom wall 10b may be a screw connection, so that the welding during field installation can be reduced, and the field installation efficiency can be improved.

In the embodiment of the present application, as shown in fig. 5, the refrigerating module 23 may include a compressor 231, a condenser 232 and an evaporator 233 which are disposed on the mounting frame 21, the compressor 231 is connected to the condenser 232 and the evaporator 233, respectively, and as shown in fig. 4, the condenser 232 is located between the heat exchanger 22 and the outdoor air outlet 17, and the evaporator 233 is located between the heat exchanger 22 and the indoor air outlet 15. The compressor 231 is used for realizing the circulation of a refrigerant (such as a refrigerant like freon), and the indoor return air after heat exchange by the heat exchanger 22 passes through the evaporator 233 and exchanges heat with the refrigerant to realize secondary cooling, so that the temperature of the indoor return air is further reduced, and the cooling of the data center machine room 200 is realized. The outdoor fresh air after heat exchange by the heat exchanger 22 is discharged to the outside after passing through the condenser 232, so that the heat of the condenser 232 can be taken away, and the condenser 232 can be cooled quickly.

The operations such as welding, leak detection and pressure maintaining of the connecting pipelines among the compressor 231, the condenser 232 and the evaporator 233 can be completed in the process of integrally assembling the cooling module 20, so that the field installation efficiency is further improved, and meanwhile, if the problem that parts cannot be used, or the pipeline welding is wrong, or other problems that the parts cannot be used are caused, the parts can be replaced on line in time, so that the phenomenon that the installation time is prolonged due to the problem in field installation is avoided.

Specifically, the air inlet of the first air duct may be located on the first side 220, the air outlet of the first air duct may be located on the second side 221, the air inlet of the second air duct may be located on the third side 222, the air outlet of the second air duct may be located on the fourth side 223, the first side 220 is opposite to the second side 221, the third side 222 is opposite to the fourth side 223, and the first side 220 is intersected with the third side 222, so that the first air duct and the second air duct are arranged in a crossed manner.

Referring to fig. 5, the condenser 232 is located on the fourth side 223 and is parallel to the fourth side 223, and the evaporator 233 is located on the second side 221 and is parallel to the second side 221, as shown in fig. 4, the indoor return air coming out of the air outlet of the first air duct can directly enter the evaporator 233 on the second side 221 for heat exchange and cooling again, and the outdoor exhaust air coming out of the air outlet of the second air duct can directly enter the condenser 232 on the fourth side 223 for heat exchange, so that the use of air ducts for communicating the heat exchanger 22 with the condenser 232 and the evaporator 233 is reduced. Meanwhile, the condenser 232 and the evaporator 233 are respectively arranged on the fourth side 223 and the second side 221 of the heat exchanger 22 in parallel, so that the distribution rationality of the components is improved, the space utilization rate is improved, and the occupied space of the indirect evaporative cooling system 100 is reduced.

Specifically, referring to fig. 6 and 7, the mounting frame 21 includes a supporting plate 211, a supporting beam 212, and a plurality of supporting columns 213, one end of each supporting column 213 is fixed to the supporting plate 211, the other end of each supporting column 213 is fixed to the heat exchanger 22, the supporting columns 213 are connected by the supporting beam 212, and the supporting beam 212 is parallel to the first vertex angle end 225 and the second vertex angle end 226.

The mounting bracket 21 further includes a first support member 214 and a second support member 215, as shown in fig. 7, the second support member 215 is disposed on the support cross member 212, as shown in fig. 8, the first support member 214 is disposed on the support plate 211, one ends of the condenser 232 and the evaporator 233 are respectively disposed on the support plate 211 through the first support member 214, and the other ends of the condenser 232 and the evaporator 233 are respectively disposed on the support plate 211 through the second support member 215.

Wherein, the first supporting member 214 is provided with a groove on one side facing the heat exchanger 22, the groove being matched with the end portions of the evaporator 233 and the condenser 232, and one ends of the condenser 232 and the evaporator 233 are respectively clamped in the groove, so that one end of the condenser 232 is fixed by the clamping of the end portions of one ends of the condenser 232 and the evaporator 233 and the groove. The condenser 232 and the evaporator 233 may be in a hexagonal shape, and in order to ensure that the condenser 232 and the evaporator 233 are respectively disposed on the fourth side 223 and the second side 221 in parallel, that is, the condenser 232 and the evaporator 233 are disposed obliquely, the groove may be a V-shaped groove.

Referring to fig. 7, the second supporting member 215 includes a first stopper 2151 and a second stopper 2152, one end of the first stopper 2151 is connected to the supporting beam 212, the other end of the first stopper 2151 is connected to the second stopper 2152 to form an open slot matching with the ends of the condenser 232 and the evaporator 233, the other ends of the condenser 232 and the evaporator 233 are respectively engaged with the open slot, so that the first stopper 2151 restricts the movement of the evaporator 233 and the condenser 232 in a direction parallel to the plane of the second side 221 and the fourth side 223, and the second stopper 2152 supports and stops the evaporator 233 and the condenser 232, so that the other ends of the evaporator 233 and the condenser 232 can be disposed on the second side 221 and the fourth side 223.

Both ends of the evaporator 233 and the condenser 232 are respectively and fixedly arranged on the second side surface 221 and the fourth side surface 223 of the heat exchanger 22 through the first supporting member 214 and the second supporting member 215 on the mounting frame 21, specifically, the first supporting member 214 and the second supporting member 215 are fixedly clamped with the end portions of the evaporator 233 and the condenser 232, so that a welding process can be avoided, meanwhile, the relevance of arrangement between the condenser 232 and the heat exchanger 22 and the arrangement between the evaporator 233 and the heat exchanger 22 can be reduced, and the condenser 232 and the evaporator 233 can be maintained independently without affecting the heat exchanger 22.

In the embodiment of the present application, referring to fig. 5, the cooling assembly 23 may further include a spray assembly for spraying a cooling liquid such as cooling water to the heat exchanger 22 to further reduce the temperature of the indoor return air flowing through the heat exchanger 22. The spray assembly comprises a sprayer 234, a delivery pump 235, a liquid storage tank 236 and a liquid loading disc 237, wherein the sprayer 234 is connected with the delivery pump 235, the delivery pump 235 is connected with the liquid storage tank 236, and the delivery pump 235 delivers cooling liquid in the liquid storage tank 236 to the sprayer 234 so as to spray the heat exchanger 22.

Wherein, the sprayer 234 is arranged on the third side 222, as shown in fig. 2, the first vertex angle end 225 is connected with the top wall 10a of the casing 10, the sprayer 234 is arranged on the third side 222, and can be located at a higher setting height, so that the area and the heat exchange time of cooling and heat exchange with indoor return air can be increased, and meanwhile, the cooling liquid sprayed by the sprayer 234 is staggered with the indoor return air entering from the first side 220, thereby being beneficial to further improving the cooling effect of the indoor return air. Transfer pump 235, liquid reserve tank 236 and hydrops disc 237 are disposed on support plate 211, and hydrops disc 237 is located below heat exchanger 22, and hydrops disc 237 is used for collecting the cooling liquid that flows down from heat exchanger 22. The hydrops disc 237 may be disposed at one side of the liquid storage tank 236, for example, the position of the liquid storage tank 236 may correspond to the first support 214, such that the first support 214 may be disposed on the liquid storage tank 236, and the position of the hydrops disc 237 may correspond to the second support 215, such that the second support 215 may be disposed on the hydrops disc 237.

Referring to fig. 5, the spray assembly may further include a baffle 28, the baffle 28 is disposed around the periphery of the third side 222, and the baffle 28 may prevent water sprayed by the sprayer 234 from splashing around, so as to prevent sprayed cooling liquid from splashing into the housing 10.

When the outdoor environment temperature is low (such as in winter), the refrigerating assembly 23 can be closed, and only the heat exchanger 22 is used for heat exchange between the indoor return air and the outdoor fresh air, so that the indoor return air is cooled. When outdoor ambient temperature is higher (such as transition seasons as spring and autumn), only use heat exchanger 22 to carry out the heat transfer and can't satisfy the cooling demand, can open the spray assembly among the refrigeration subassembly 23, utilize spray assembly and heat exchanger 22 to realize the cooling to indoor return air jointly. When the outdoor environment temperature is very high (such as summer), the spraying assembly, the compressor 231, the condenser 232 and the evaporator 233 refrigeration system in the refrigeration assembly 23 can be started at the same time, and the heat exchanger 22 and the refrigeration assembly 23 are used for cooling the indoor return air together, so that the energy conservation and emission reduction can be realized while the cooling effect is ensured.

Referring to fig. 5, the indirect evaporative cooling system 100 may further include a filter 24, the filter 24 being disposed on the first side 220, and the filter 24 covering the first duct inlet, the filter 24 being configured to purify and filter the return air from the room entering the heat exchanger 22.

In the embodiment of the present application, as shown in fig. 9, an installation seat 18 is provided on a top wall 10a of a housing 10, a slide rail 181 is provided on the installation seat 18, a sliding part 2251 is provided on a first vertex angle end 225, the sliding part 2251 is slidably disposed in the slide rail 181, that is, the first vertex angle end 225 of the heat exchanger 22 is disposed in the installation seat 18 on the top wall 10a of the housing 10 in a sliding manner, so that when the cooling module 20 is installed in the housing 10, the first vertex angle end 225 can be pushed into the slide rail 181 by a tool, the cooling module 20 can be disposed in the housing 10, and the top wall 10a and the heat exchanger 22 are connected in a manner without using screws or welding, which avoids high-altitude operation of an installer and improves installation safety.

Specifically, referring to fig. 10, the mounting seat 18 includes a first mounting portion 182 and a second mounting portion 183, and the first mounting portion 182 and the second mounting portion 183 have a gap therebetween to form a slide rail 181. Referring to fig. 11, the sliding member 2251 includes a sliding end 2251a and a limiting end 2251b, the sliding end 2251a is connected to the first vertex end 225 at one end, the sliding end 2251a is connected to the limiting end 2251b at the other end, the sliding end 2251a is slidable in the sliding track 181, and the width of the limiting end 2251b is larger than the width of the sliding track 181.

The width of the sliding rail 181 is the distance between the first mounting part 182 and the second mounting part 183, the width of the stopper 2251b is the length of the stopper 2251b in the width direction of the sliding rail 181, and the sliding end 2251a is connected to the stopper 2251 b. Specifically, the cross section of the sliding member 2251 may be T-shaped as shown in fig. 11, when installing, the cooling module 20 is first lifted by using the tool and the limiting end 2251b is located on the side of the sliding rail 181 away from the bottom wall 10b of the housing, and then the cooling module 20 is pushed to push the sliding end 2251a into the sliding rail 181, and after the tool releases the cooling module 20, since the width of the limiting end 2251b is larger than that of the sliding rail 181, the limiting end 2251b cannot be pulled out from the sliding rail 181, so that the cooling module 20 is hung on the mounting seat 18, and the cooling module 20 is disposed in the housing accommodating cavity 101.

In the embodiment of the present application, referring to fig. 2, the housing 10 may include a first side wall 10c and a second side wall 10d connected to the top wall 10a and the bottom wall 10b, the indirect evaporative cooling system 100 further includes a third blocking plate 19, the third blocking plate 19 is located in the housing accommodating chamber 101, the third blocking plate 19 partitions the housing accommodating chamber 101 to form a first accommodating chamber 102 and a second accommodating chamber 103, and a third partition may be parallel to the first side wall 10c and the second side wall 10d to divide the housing accommodating chamber 101 into two chambers.

The cooling module 20 is disposed in the first accommodating chamber 102, and the cooling module 20 partitions the first accommodating chamber 102 into four closed chambers, namely a first inner chamber 102a, a first outer chamber 102b, a second inner chamber 102c and a second outer chamber 102 d. Specifically, as shown in fig. 2 and 3, when the cooling module 20 is disposed in the first accommodation chamber 102 with two diagonal surfaces of the heat exchanger 22 as partition planes, the first accommodation chamber 102 can be partitioned into four chambers.

The first side 220 is located in the first indoor cavity 102a, the indoor air inlet 14 is located on a side wall of the first indoor cavity 102a, and specifically, may be located on the top wall 10a of the housing 10, as shown in fig. 4, the first indoor cavity 102a is respectively communicated with the indoor air inlet 14 and the first air duct air inlet, the indoor air inlet 14 may be communicated with the data center machine room 200 through the air duct 300, and the indoor return air may pass through the air duct 300, the indoor air inlet 14, the first indoor cavity 102a and enter the first air duct.

The second side surface 221 is located in the second indoor cavity 102c, the indoor air supply outlet 15 is located on a side wall of the second indoor cavity 102c, specifically, the second indoor cavity 102c may be located on the first side wall 10c, the second indoor cavity 102c is respectively communicated with the indoor air supply outlet 15 and the first air duct air outlet, the indoor air supply outlet 15 may be communicated with the data center machine room 200 through the air duct 300, and indoor return air after heat exchange with outdoor fresh air in the heat exchanger 22 may be sent into the machine room 200 after passing through the first air duct air outlet, the second indoor cavity 102c and the air duct 300, so as to cool the machine room 200.

The third side 222 is located in the first outdoor cavity 102b, the outdoor air inlet 16 is located on a side wall of the first outdoor cavity 102b, specifically, the third side may be located on the first side wall 10c and above the indoor air supply outlet 15, the first outdoor cavity 102b is respectively communicated with the outdoor air inlet 16 and the second air duct air inlet, and the outdoor fresh air may pass through the outdoor air inlet 16, the first outdoor cavity 102b and enter the second air duct.

The fourth side 223 is located in the second outdoor cavity 102d, the second outdoor cavity 102d is respectively communicated with the outdoor air outlet 17 and the second air duct air outlet, and the outdoor fresh air after heat exchange can be discharged outdoors after passing through the second air duct air outlet and the second outdoor cavity 102 d.

To sum up, the cooling module 20 is disposed in the first accommodating cavity 102 and divides the first accommodating cavity into four closed cavities, namely a first indoor cavity 102a, a first outdoor cavity 102b, a second indoor cavity 102c and a second outdoor cavity 102d, the first indoor cavity 102a realizes the communication between the indoor air inlet 14 and the first air duct air inlet, the second indoor cavity 102c realizes the communication between the indoor air supply outlet 15 and the first air duct air outlet, the first outdoor cavity 102b realizes the communication between the outdoor air inlet 16 and the second air duct air inlet, the second outdoor cavity 102d realizes the communication between the outdoor air outlet 17 and the second air duct air outlet, an air duct is formed in the housing 10 by using the arrangement of the housing 10 and the cooling module 20, and the indoor air inlet 14, the indoor air supply outlet 15 and the first air duct can be realized without using an air duct, and the outdoor air inlet 16, the outdoor air outlet 17 and the second air channel are communicated, so that the use of air pipes is reduced.

Referring to fig. 2 and 3, the cooling module 20 further comprises a first barrier plate 25 and a second barrier plate 26, the first barrier plate 25 is connected with the third vertex end 227, and the fifth side 224 and the sixth side of the heat exchanger 22 abut on the inner side wall of the first receiving cavity 102. The first blocking plate 25 is connected to the third vertex angle end 227, the first blocking plate 25 abuts against the sidewall of the first accommodating cavity 102, the second blocking plate 26 is connected to the fourth vertex angle end 228, the second blocking plate 26 abuts against the sidewall of the first accommodating cavity 102, and the cooling module 20, the first blocking plate 25 and the second blocking plate 26 divide the first accommodating cavity 102 into four closed chambers.

Specifically, when the cooling module 20 is disposed in the first accommodating cavity 102, since the first vertex end 225 of the heat exchanger 22 is connected to the top wall 10a of the housing 10, the second vertex end 226 is connected to the support plate 211, the support plate 211 is fixed to the bottom wall 10b of the housing 10, and the fifth side 224 and the sixth side are respectively abutted against the inner side wall of the first accommodating cavity 102, so that the heat exchanger 22 divides the first accommodating cavity 102 into two chambers, namely, a left chamber and a right chamber. The first blocking plate 25 is connected to the third vertex end 227, the first blocking plate 25 abuts against the sidewall of the first accommodating cavity 102, and the left chamber can be separated into an upper chamber and a lower chamber by the first blocking plate 25. Accordingly, the right chamber may be divided into an upper chamber and a lower chamber by the second barrier plate 26, so that the first receiving chamber 102 is divided into four closed chambers by the heat exchanger 22, the first barrier plate 25 and the second barrier plate 26.

In order to ensure the tightness of the first accommodating cavity 102, the second accommodating cavity 103, the third accommodating cavity and the fourth accommodating cavity, sealing cotton may be filled between the interfaces where the cooling module 20 contacts the wall of the housing 10, that is, the cooling module 20 may be wrapped after the cooling module 20 is formed by integrated assembly.

In addition, as shown in fig. 11, a sealing cotton 184 may be disposed on one end of the first mounting portion 182 and the second mounting portion 183 away from the bottom wall 10b of the housing 10, after the cooling module 20 is lifted by the tool and pushed into the housing 10, the tool releases the cooling module 20, the cooling module 20 is hung on the mounting seat 18, and the sealing cotton 184 is compressed due to the cooling module 20 itself, so that the joint has a good sealing effect.

The fixing of the first blocking plate 25 and the second blocking plate 26 may be achieved by the mounting frame 21, and specifically, as shown in fig. 5 and 6, a third support 216 and a fourth support 217 may be provided on both ends of the supporting beam 212, the first blocking plate 25 may be provided in the first receiving cavity 102 by the third support 216 and the fourth support 217 on the supporting beam 212 near the third vertex end 227, and the second blocking plate 26 may be provided in the first receiving cavity 102 by the third support 216 and the fourth support 217 on the supporting beam 212 near the fourth vertex end 228.

Referring to fig. 2 and 3, in the embodiment of the present application, the indirect evaporative cooling system 100 further includes an exhaust fan 30 and an air supply fan 40 disposed in the first accommodating chamber 102, specifically, the exhaust fan 30 is disposed in the second outdoor chamber 102d, and the exhaust fan 30 is respectively communicated with the second outdoor chamber 102d and the outdoor air outlet 17, and the outdoor fresh air after heat exchange enters the second outdoor chamber 102d and is exhausted to the outside from the outdoor air outlet 17 through the effect of the exhaust fan.

The air supply fan 40 is located in the second indoor cavity 102c, the air supply fan 40 is communicated with the second indoor cavity 102c and the indoor air supply outlet 15 respectively, indoor return air after heat exchange and cooling enters the second indoor cavity 102c, and the return air is sent back to the machine room 200 from the indoor air supply outlet 15 under the action of the air supply fan 40.

Referring to fig. 2, the indirect evaporative cooling system 100 further includes an electronic control module 50, and the electronic control module 50 may be connected to the compressor 231, the condenser 232, the evaporator 233, the exhaust fan 30, the supply fan 40, and the like to control the respective components. Wherein the electronic control module 50 can be disposed in the second receiving chamber 103.

The outdoor air outlet 17 may be located on a side wall of the second accommodating chamber 103 and communicated with the second accommodating chamber 103, the second accommodating chamber 103 may be communicated with the air exhaust fan 30, and the outdoor fresh air after heat exchange enters the second outdoor chamber 102d and is exhausted into the second accommodating chamber 103 by the action of the air exhaust fan and then is exhausted from the outdoor air outlet 17. The second accommodating cavity 103 can be used as a space for accommodating the electronic control module 50, and the second accommodating cavity 103 can also be used for facilitating the maintenance of the exhaust fan 30.

Referring to fig. 1, in the embodiment of the present application, the housing 10 includes a housing body 11 and a first side plate 12 and a second side plate 13 detachably disposed on the housing body 11, specifically, as shown in fig. 2, the housing body 11 may be composed of a top wall 10a, a bottom wall 10b, a first side wall 10c, and a second side wall 10d of the housing 10, the first side plate 12 and the second side plate 13 are disposed opposite to each other, are respectively located at two sides of the housing body 11, and are connected to the top wall 10a, the bottom wall 10b, the first side wall 10c, and the second side wall 10d, and the housing body 11, the first side plate 12, and the second side plate 13 together enclose a housing accommodating cavity 101.

An access hole 131 is formed in the first side plate 12 or the second side plate 13 for performing maintenance and repair on the indirect evaporative cooling system 100. The side wall provided with the access hole 131 of the existing cooling system is formed with the shell 10 in a welding mode and the like, and when two groups of cooling systems are arranged in parallel (the side wall provided with the access hole 131 is arranged in a proximity mode), a certain arrangement distance is needed between the two groups of cooling systems for leaking the access hole 131.

In the embodiment of the present application, since the first side plate 12 and the second side plate 13 are detachably disposed on the housing 10, the mirror image arrangement of the two sets of indirect evaporative cooling systems 100 can be realized, which is convenient for maintenance and helps to reduce the occupied space when the multiple sets of indirect evaporative cooling systems 100 are disposed. Specifically, taking fig. 1 as an example that the first side plate 12 and the second side plate 13 are respectively located at the left and right sides of the casing body 11, the first side plate 12 may be detachably disposed at the left side of the casing body 11, or may be detachably disposed at the right side of the casing 10, the second side plate 13 may also be detachably disposed at the right side of the casing body 11, or may be at the left side, when there are two sets of indirect evaporative cooling systems 100 arranged side by side, and the first side plate 12 has the access opening 131, the first side plate 12 of one indirect evaporative cooling system 100 may be disposed at the left side of the casing body 11 (the side far away from the other indirect evaporative cooling system 100), and the first side plate 12 of the other indirect evaporative cooling system 100 may be disposed at the right side of the casing body 11, that is, the two sets of indirect evaporative cooling systems 100 are mirror-symmetric, so that the two sets of indirect, and a space is not required to be reserved, and the occupied space is reduced.

The first side plate 12 or the second side plate 13 opposite to the first indoor cavity 102a, the second indoor cavity 102c, the first outdoor cavity 102b, the second outdoor cavity 102d, and the second accommodating cavity 103 may be provided with an access hole 131 for accessing components in each cavity. If the access hole is arranged at the position opposite to the first indoor cavity 102a on the first side plate 12 or the second side plate 13, the access hole can be arranged at the position opposite to the second indoor cavity 102c, the evaporator 233 and the air supply fan 40 can be accessed and replaced, the access hole is arranged at the position opposite to the first indoor cavity 102b, the spray assembly can be accessed and replaced, the access hole is arranged at the position opposite to the second indoor cavity 102d, the condenser 232 and the compressor 231 can be accessed and replaced, the access hole is arranged at the position opposite to the third accommodating cavity, and the electronic control module 50 can be accessed and replaced.

Wherein, for guaranteeing the leakproofness in the casing holds chamber 101, can make access hole 131 be inclosed access door, in a possible implementation, with the access hole 131 that first outdoor chamber 102b position corresponds, can be open-ended access window, like this access hole 131 can also be used to enter outdoor new trend, can increase outdoor air intake 16's area, the flow of increase outdoor new trend helps improving the cooling effect.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An indirect evaporative cooling system, comprising: the cooling module is arranged in the housing accommodating cavity;

the casing is provided with an indoor air inlet, an indoor air supply outlet, an outdoor air inlet and an outdoor air outlet, a first air channel and a second air channel which are arranged in a staggered mode are arranged in the heat exchanger, two ends of the first air channel are respectively communicated with the indoor air inlet and the indoor air supply outlet, and two ends of the second air channel are respectively communicated with the outdoor air inlet and the outdoor air outlet.

2. The indirect evaporative cooling system of claim 1, wherein the heat exchanger includes first and second opposing sides, a third side connecting the first and second sides, and a fourth side opposing the third side;

the first side face and the third side face are intersected to form a first vertex angle end, the second side face and the fourth side face are intersected to form a second vertex angle end, the second vertex angle end is fixedly connected with the mounting rack, the first vertex angle end is in sliding connection with the top wall of the shell, and the mounting rack is fixedly connected with the bottom wall of the shell.

3. The indirect evaporative cooling system of claim 2, wherein the refrigeration assembly comprises a compressor, a condenser and an evaporator disposed on the mounting frame, the compressor is connected to the condenser and the evaporator, the condenser is located between the heat exchanger and the outdoor air outlet, and the evaporator is located between the heat exchanger and the indoor air outlet.

4. The indirect evaporative cooling system of claim 3, wherein the inlet of the first air duct is located on the first side, the outlet of the first air duct is located on the second side, the inlet of the second air duct is located on the third side, and the outlet of the second air duct is located on the fourth side;

the condenser is located on the fourth side and arranged in parallel with the fourth side, and the evaporator is located on the second side and arranged in parallel with the second side.

5. The indirect evaporative cooling system of claim 4, wherein the mounting bracket comprises a support plate, a support beam and a plurality of support columns, wherein one end of each support column is fixed to the support plate, the other end of each support column is fixed to the heat exchanger, the support columns are connected by the support beam, and the support beam is parallel to the first vertex angle end and the second vertex angle end;

6. The indirect evaporative cooling system of claim 5, wherein a surface of the first support member facing the heat exchanger is provided with a groove which is matched with the end portions of the evaporator and the condenser, and one ends of the condenser and the evaporator are respectively clamped in the groove;

the second support piece includes first spacing portion and the spacing portion of second, first spacing portion one end with the supporting beam connects, the first spacing portion other end with the spacing portion of second connect and form with the condenser with evaporimeter tip complex open slot, the condenser with the other end of evaporimeter is blocked respectively and is established in the open slot.

7. The indirect evaporative cooling system of claim 5, wherein the refrigeration assembly further comprises a spray assembly comprising a sprayer, a transfer pump, a reservoir and a liquid accumulation tray, the sprayer being connected to the transfer, the transfer pump being connected to the reservoir;

the sprayer is arranged on the third side face, the delivery pump, the liquid storage tank and the liquid accumulating disc are arranged on the supporting plate, and the liquid accumulating disc is located below the heat exchanger.

8. The indirect evaporative cooling system of claim 7, wherein the spray assembly further comprises a baffle member that is enclosed on an outer periphery of the third side.

9. The indirect evaporative cooling system of claim 8, further comprising a filter disposed on the first side, the filter covering the first air duct inlet.

10. The indirect evaporative cooling system of any of claims 2-9, wherein the housing has a mounting block on the top wall, the mounting block having a slide track thereon, the first top corner having a slide member thereon, the slide member being slidably disposed within the slide track.

11. The indirect evaporative cooling system of claim 10, wherein the mounting block comprises a first mounting portion and a second mounting portion with a gap therebetween to form the sliding track;

the sliding part comprises a sliding end and a limiting end, one end of the sliding end is connected with the first vertex angle end, the other end of the sliding end is connected with the limiting end, the sliding end can slide in the sliding rail, and the width of the limiting end is larger than that of the sliding rail.

12. The indirect evaporative cooling system of any of claims 2-9, further comprising a third baffle plate within the housing receiving cavity, wherein the third baffle plate separates the housing receiving cavity to form a first receiving cavity and a second receiving cavity;

the cooling module is arranged in the first accommodating cavity and divides the first accommodating cavity into four closed chambers, namely a first indoor cavity, a first outdoor cavity, a second indoor cavity and a second outdoor cavity;

13. The indirect evaporative cooling system of claim 12, wherein the cooling module further comprises a first baffle plate and a second baffle plate, the heat exchanger further comprises a fifth side connecting the first side, the second side, the third side, and the fourth side, and a sixth side opposite the fifth side, the first side intersecting the fourth side to form a third vertex end, the second side intersecting the third side to form a fourth vertex end, the fifth side and the sixth side abutting against the inside wall of the first receiving chamber;

14. The indirect evaporative cooling system of claim 13, wherein the mounting bracket comprises a support plate, a support beam, and a plurality of support columns, one end of each support column being fixed to the support plate, the other end of each support column being fixed to the heat exchanger, the support columns being connected by the support beam, the support beam being parallel to the first and second vertex ends;

and a third supporting piece and a fourth supporting piece are arranged at two ends of the supporting beam, and the first blocking plate and the second blocking plate are arranged in the first accommodating cavity through the third supporting piece and the fourth supporting piece.

15. The indirect evaporative cooling system of claim 12, further comprising an exhaust fan and an air supply fan disposed within the first containment chamber, the exhaust fan being located within the second outdoor chamber and the exhaust fan being in communication with the second outdoor chamber and the outdoor air outlet, respectively;

the air supply fan is located in the second indoor cavity, and the air supply fan is communicated with the second indoor cavity and the indoor air supply outlet respectively.

16. The indirect evaporative cooling system of claim 14, further comprising an electronic control module disposed within the second receiving chamber, the second receiving chamber being in communication with the exhaust fan, the outdoor air outlet being located on a side wall of the second receiving chamber and being in communication with the second receiving chamber.

17. The indirect evaporative cooling system of any of claims 2-9, wherein the housing comprises a housing body and first and second side plates removably disposed on the housing body;

the first side plate and the second side plate are arranged oppositely, the shell body, the first side plate and the second side plate jointly enclose the shell accommodating cavity, and an access hole is formed in the first side plate or the second side plate.