CN216361425U - Indirect evaporative cooling system - Google Patents
Indirect evaporative cooling system Download PDFInfo
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- CN216361425U CN216361425U CN202120737506.6U CN202120737506U CN216361425U CN 216361425 U CN216361425 U CN 216361425U CN 202120737506 U CN202120737506 U CN 202120737506U CN 216361425 U CN216361425 U CN 216361425U
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Abstract
The application provides an indirect evaporative cooling system for adjust the temperature of indoor return air, indirect evaporative cooling system includes the ventilation body, heat exchanger and first fan, the ventilation body is equipped with the return air inlet, the supply-air outlet, air intake and air outlet, return air inlet and supply-air outlet intercommunication form first passageway, air intake and air outlet intercommunication form the second passageway, the heat exchanger sets up in the ventilation body, first passageway is located to first fan, indoor return air gets into indoorly from the supply-air outlet behind return air inlet, first fan, the heat exchanger in proper order. The application provides an indirect evaporative cooling system, design layout has obtained the optimization, has promoted indirect evaporative cooling system's heat exchange efficiency, and the air current organization reasonable in design is applicable to different application scenarios.
Description
Technical Field
The application relates to the technical field of indirect evaporative cooling systems, in particular to an indirect evaporative cooling system.
Background
Indirect evaporative cooling refers to a process of transferring the cold energy of wet air (secondary air) obtained by direct evaporative cooling to air to be treated (primary air) through a non-direct contact heat exchanger to realize air equal-humidity cooling. The indirect evaporative cooling technology can obtain cold energy from natural environment, and compared with the common conventional mechanical refrigeration, the energy can be saved by 80-90% in a hot dry area, by 20-25% in a hot humid area and by 40% in a medium humidity area, thereby greatly reducing the refrigeration energy consumption of the air conditioner.
With the development of indirect evaporative cooling technology, the application scenes of indirect evaporative cooling air conditioning units are increased, the unreasonable design of airflow organization causes the limitation of the application scenes of indirect evaporative cooling systems, and a great deal of difficulty and inconvenience are brought to the unit installation and use of the indirect evaporative cooling systems.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides an indirect evaporative cooling system to solve the technical problem.
The embodiment of the application realizes the aim through the following technical scheme.
The embodiment of the application provides an indirect evaporative cooling system for adjust the temperature of indoor return air, indirect evaporative cooling system includes the ventilation body, heat exchanger and first fan, the ventilation body is equipped with the return air inlet, the supply-air outlet, air intake and air outlet, return air inlet and supply-air outlet intercommunication form first passageway, air intake and air outlet intercommunication form the second passageway, the heat exchanger sets up in the ventilation body, first passageway is located to first fan, indoor return air gets into indoorly from the supply-air outlet behind return air inlet, first fan, the heat exchanger in proper order.
In one embodiment, the heat exchanger has a first heat exchange surface facing the first channel and a second heat exchange surface facing the second channel, and the air inlet is arranged parallel to the second heat exchange surface.
In one embodiment, the indirect evaporative cooling system further comprises a spray unit disposed between the air inlet and the heat exchanger.
In one embodiment, the indirect evaporative cooling system further includes a circulation water tank, and the circulation water tank is disposed corresponding to the heat exchanger.
In one embodiment, the indirect evaporative cooling system further comprises a circulating water pump, the circulating water pump is connected with the spraying unit through a pipeline, and the circulating water pump is connected with the circulating water tank through a pipeline.
In one embodiment, the indirect evaporative cooling system further comprises a water receiving tray, a water receiving surface of the water receiving tray is used for receiving water dripped from the heat exchanger, and the water receiving surface is arranged obliquely towards the circulating water tank.
In one embodiment, the indirect evaporative cooling system further comprises a filter screen, and the filter screen is arranged between the first fan and the heat exchanger.
In one embodiment, the indirect evaporative cooling system further comprises an evaporator, the evaporator is arranged in the first channel, and the indoor return air sequentially passes through the return air inlet, the first fan, the heat exchanger and the evaporator and then enters the room from the air supply outlet.
In one embodiment, the evaporative cooling system further comprises a compressor and a condenser, the compressor, the condenser and the evaporator being disposed at the same level.
In one embodiment, the outdoor fresh air is used for exchanging heat with indoor return air, the fan unit comprises a second fan, and the outdoor fresh air is discharged outdoors from the air outlet after sequentially passing through the air inlet, the heat exchanger and the second fan.
The indirect evaporative cooling system provided by the embodiment of the application has the advantages that the design layout is optimized, the heat exchange efficiency of the indirect evaporative cooling system is improved, the air flow organization design is reasonable, and the indirect evaporative cooling system is suitable for different application scenes.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an indirect evaporative cooling system provided in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of an indirect evaporative cooling system according to another embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, an indirect evaporative cooling system 100 is provided in an embodiment of the present application, and is used for adjusting the temperature of indoor return air, and the indirect evaporative cooling system 100 can utilize outdoor fresh air with a low outdoor temperature to take away the heat of the indoor return air through a heat exchanger 120, so as to achieve an effect of cooling the indoor return air, and obtain cold from the external environment. The indirect evaporative cooling system 100 provided by the embodiment of the application has three cooling modes, and different cooling modes can be selected under different use conditions to achieve the best cooling effect, and meanwhile, the energy consumption can be reduced.
The indirect evaporative cooling system 100 includes a draft tube body 110, a heat exchanger 120, and a first fan 130, with the heat exchanger 120 and the first fan 130 both being disposed on the draft tube body 110. The ventilation pipe body 110 is provided with an air return opening 1110, an air supply opening 1111, an air inlet 1112 and an air outlet 1113, the air return opening 1110 is convenient for the ventilation pipe body 110 to receive indoor return air, the air inlet 1112 is convenient for the ventilation pipe body 110 to receive outdoor fresh air, the indoor return air and the outdoor fresh air exchange heat through the heat exchanger 120, the indoor return air after temperature reduction enters the room from the air supply opening 1111, and the outdoor fresh air after temperature increase is discharged out of the room from the air outlet 1113.
In an embodiment, according to a specific use scenario of the indirect evaporative cooling system 100, the ventilation tube 110 may include a return air tube 1115, the return air hole 1110 is disposed in the return air tube 1115, indoor return air enters the ventilation tube 110 through the return air hole 1110, and the return air tube 1115 may flexibly select the return air hole 1110 to face different directions according to a relative position of a wall surface and the indirect evaporative cooling system 100, so that the position of the ventilation tube 110 may not need to be adjusted, and installation of the indirect evaporative cooling system 100 is facilitated.
In one embodiment, referring to fig. 2, the air return opening 1110 may also be directly connected to the indoor space without providing the air return pipe 1115, so that the height of the indirect evaporative cooling system 100 may be reduced, the transportation and handling performance of the indirect evaporative cooling system 100 may be improved, the construction cost may be optimized, and the indirect evaporative cooling system 100 without the design of the air return pipe 1115 may be suitable for application scenarios with large cooling capacity.
The return air inlet 1110 and the supply air outlet 1111 are communicated to form a first channel 200, and the first channel 200 is used for conveying indoor return air to the room after being cooled by the heat exchanger 120. The air inlet 1112 and the air outlet 1113 are communicated to form a second channel 300. The second channel 300 is used for conveying outdoor fresh air into the ventilation pipe body 110, and outputting the outdoor fresh air back to the outside after heat exchange is carried out by the heat exchanger 120.
In an embodiment, the opening directions of the air inlet 1112 and the air outlet 1113 are different, and since the outdoor fresh air exhausted from the air outlet 1113 is subjected to heat exchange with the indoor return air, the temperature is increased, so that the outdoor fresh air exhausted from the air outlet 1113 is not easily mixed into the air inlet 1112, and the heat exchange efficiency of the indirect evaporative cooling system 100 is improved. Such an arrangement allows the indirect evaporative cooling system 100 to be used in both single-level and multi-level library applications. When the air outlet 1113 is applied to a single-layer warehouse, the air outlet 1113 can be directly communicated with the atmosphere, and outdoor fresh air subjected to heat exchange can be directly discharged into the atmosphere. When the air conditioner is applied to a multilayer warehouse, an outdoor exhaust pipe needs to be connected externally, and outdoor fresh air which is exhausted from the air outlet 1113 and subjected to heat exchange is exhausted upwards to the atmosphere through the air pipe. The design of the air inlet 1112 and the air outlet 1113 with different directions optimizes the design layout of the indirect evaporative cooling system 100, so that the indirect evaporative cooling system 100 can be applied to various application scenarios.
The first fan 130 is arranged in the first channel 200, and the first fan 130 conveys the indoor return air into the first channel 200, so that the indoor return air sequentially passes through the return air inlet 1110, the first fan 130 and the heat exchanger 120 and then enters the room from the air supply outlet 1111. The first fan 130 may select fans with different powers according to actual application scenarios, so as to achieve cooling effects with different space requirements. The heat that first fan 130 distributed out at the operation in-process has improved the temperature of the indoor return air through first fan 130 before carrying out the heat exchange for the difference in temperature grow of indoor return air and outdoor new trend helps promoting heat exchanger 120's heat exchange efficiency, promotes the refrigerating capacity of the indoor return air of outdoor new trend cooling in adopting first cooling mode to make. In one embodiment, the outdoor fresh air is used for heat exchange with the indoor return air, the indirect evaporative cooling system 100 includes a second fan 230, in one embodiment, the second fan 230 may be located between the heat exchanger 120 and the air outlet 1113, and the outdoor fresh air is exhausted to the outdoor from the air outlet 1113 after passing through the air inlet 1112, the heat exchanger 120, and the second fan 230 in sequence.
In the first cooling mode, the indoor return air can be cooled only by the heat exchanger 120. The heat exchanger 120 is disposed in the ventilation pipe body 110, and the heat exchanger 120 may be a plate heat exchanger, which is a high-efficiency heat exchanger formed by stacking a series of metal sheets having a certain corrugated shape. Thin rectangular channels are formed between the various plates through which heat is exchanged. The plate heat exchanger has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area and the like. The heat exchanger 120 is installed in a rhombus form, so that the air flow organization is optimized, and the power consumption of the indirect evaporative cooling system 100 is reduced.
In one embodiment, the heat exchanger 120 has a first heat exchange surface 121 and a second heat exchange surface 122, the first heat exchange surface 121 faces the first channel 200, the first fan 130 is disposed corresponding to the first heat exchange surface 121, and the second heat exchange surface 122 faces the second channel 300. Indoor return air in the first channel 200 and outdoor new air in the second channel 300 are subjected to heat exchange through the heat exchanger 120, and the heat of the indoor return air is efficiently taken away by the high heat exchange efficiency of the plate heat exchanger 120, so that the temperature of the indoor return air is reduced. The air inlet 1112 is arranged parallel to the second heat exchange surface 122, and such arrangement can increase the windward area, so that after outdoor fresh air enters the second channel 300 from the air inlet 1112, the windward area of the second heat exchange surface 122 is larger, the heat exchange efficiency is higher, and the power consumption of the indirect evaporative cooling system 100 is reduced.
In one embodiment, the indirect evaporative cooling system 100 further includes a filter screen 140, and the filter screen 140 is disposed between the first fan 130 and the heat exchanger 120, for example, the filter screen 140 is disposed between the first fan 130 and the first heat exchange surface 121. The filter screen 140 can filter the indoor return air, filter out the larger impurity of granule and dust particle etc. and make indoor return air cleaner before carrying out the heat transfer, promote heat exchange efficiency, also can promote indoor return air quality simultaneously.
In one embodiment, the indirect evaporative cooling system 100 further includes a spraying unit 150, and in the second cooling mode, the outdoor fresh air can be cooled by the spraying unit 150 when the temperature of the outdoor fresh air is not low enough to ensure the cooling effect of the indoor return air. The spray unit 150 is disposed between the intake 1112 and the heat exchanger 120. The spraying unit 150 and the heat exchanger 120 are correspondingly arranged, in one embodiment, the spraying unit 150 may be arranged above the heat exchanger 120, and the spraying unit 150 may cool the fresh outdoor air in the second channel 300 within a spraying range. The spray unit 150 can spray water drops with small particle size, the spray unit 150 can take away heat of fresh air outside the chamber in the second channel 300 through water evaporation to cool the fresh air outside the chamber, the temperature of the fresh air outside the chamber is obviously lower than that of the return air inside the chamber, heat conduction between the fresh air outside the chamber and the return air inside the chamber is more efficient, the heat exchange efficiency of the indirect evaporative cooling system 100 is improved, the return air inside the chamber is effectively cooled, and meanwhile, the energy consumption of the indirect evaporative cooling system 100 can be saved.
In one embodiment, the indirect evaporative cooling system 100 further includes a circulation water tank 160, and the circulation water tank 160 is disposed corresponding to the heat exchanger 120, and in one embodiment, the circulation water tank 160 may be disposed at the bottom of the indirect evaporative cooling system 100, so as to save space of the indirect evaporative cooling system 100 and make the layout of the indirect evaporative cooling system 100 more reasonable. The spray water enters the circulating water tank 160 after passing through the heat exchanger 120, and the water floating risk is avoided.
In one embodiment, the indirect evaporative cooling system 100 further includes a water circulation pump 170, the water circulation pump 170 is disposed in cooperation with the water circulation tank 160, the water circulation pump 170 is connected to the spray unit 150 through a pipe, and the water circulation pump 170 is connected to the water circulation tank 160 through a pipe. The circulation water pump 170 serves to deliver water in the circulation water tank 160 to the shower unit 150.
In one embodiment, the indirect evaporative cooling system 100 further includes a water receiving tray 180, a water receiving surface 185 of the water receiving tray 180 is used for receiving the dripping water of the heat exchanger 120, the water receiving tray 180 is disposed corresponding to the heat exchanger 120, and the water receiving surface 185 is disposed to be inclined toward the circulation tank 160. The arrangement enables water sprayed by the spraying unit 150 to be dripped to the water receiving tray 180 through the heat exchanger 120 after outdoor fresh air in the second channel 300 is cooled through the heat exchanger 120, and then flows back to the circulating water tank 160 through the water receiving surface 185, and the water dripped by the heat exchanger 120 is recovered to the room temperature in the process. Meanwhile, the structural design of the indirect evaporative cooling system 100 is more compact, and the internal space of the indirect evaporative cooling system 100 is utilized to the maximum extent.
In one embodiment, the indirect evaporative cooling system 100 further includes an evaporator 192, the evaporator 192 is disposed in the first channel 200, and the indoor return air enters the room from the air supply port 1111 after passing through the return air port 1110, the first fan 130, the heat exchanger 120 and the evaporator 192 in sequence, thereby contributing to further reducing the temperature of the indoor return air.
In one embodiment, the indirect evaporative cooling system 100 further includes a compressor 190 and a condenser 191, and the compressor 190, the condenser 191 and the evaporator 192 are disposed at the same level. The compressor 190, the condenser 191 and the evaporator 192 constitute a refrigeration unit, and when the spraying unit 150 cannot cool outdoor fresh air so as to further indirectly cool indoor return air, the spraying unit 150 and the refrigeration unit can be used together, namely, a third cooling mode is adopted to cool the indoor return air.
On the basis of turning on the spraying unit 150, the compressor 190 can be turned on, the high-pressure high-temperature gaseous refrigerant is converted into a high-pressure normal-temperature liquid refrigerant after heat exchange by the condenser 191, then the high-pressure normal-temperature liquid refrigerant enters the evaporator 192 after throttling of the low-pressure low-temperature liquid, and the low-pressure low-temperature gaseous refrigerant after evaporation returns to the compressor 190 again to form a refrigeration cycle. The liquid refrigerant in the evaporator 192 evaporates and secondarily cools the indoor return air cooled by the heat exchanger 120, and the secondarily cooled indoor return air is sent into the room through the air supply outlet 1111.
The application provides an indirect evaporative cooling system 100, a temperature for adjusting indoor return air, indirect evaporative cooling 100 system includes the ventilation body 110, heat exchanger 120 and first fan 130, the ventilation body 110 is equipped with return air inlet 1110, supply-air outlet 1111, air intake 1112 and air outlet 1113, return air inlet 1110 and supply-air outlet 1111 intercommunication form first passageway 200, air intake 1112 and air outlet 1113 intercommunication form second passageway 300, heat exchanger 120 sets up in the ventilation body 110, first passageway 200 is located to first fan 130, indoor return air is in proper order through return air inlet 1110, first fan 130, get into indoorly from supply-air outlet 1111 behind the heat exchanger 120. The application provides an indirect evaporative cooling system 100, the design layout has obtained the optimization, has promoted indirect evaporative cooling system's heat exchange efficiency, and the air current organization reasonable in design is applicable to different application scenarios.
Furthermore, the terms "first," "second," and the like are used merely for distinguishing between descriptions and not intended to imply or imply a particular structure. The description of the terms "some embodiments," "other embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this application can be combined and combined by those skilled in the art without contradiction.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. An indirect evaporative cooling system for conditioning the temperature of return air in a room, the indirect evaporative cooling system comprising:
the ventilation pipe body is provided with an air return inlet, an air supply outlet, an air inlet and an air outlet, the air return inlet is communicated with the air supply outlet to form a first channel, and the air inlet is communicated with the air outlet to form a second channel;
the heat exchanger is arranged in the ventilation pipe body; and
the first fan is arranged in the first channel, and the indoor return air sequentially passes through the return air inlet, the first fan and the heat exchanger and then enters the room from the air supply outlet.
2. The indirect evaporative cooling system of claim 1, wherein the heat exchanger has a first heat exchange surface and a second heat exchange surface, the first heat exchange surface facing the first pass, the second heat exchange surface facing the second pass, the air inlet being disposed parallel to the second heat exchange surface.
3. The indirect evaporative cooling system of claim 1, further comprising a spray unit disposed between the air intake and the heat exchanger.
4. The indirect evaporative cooling system of claim 3, further comprising a circulating water tank disposed in correspondence with the heat exchanger.
5. The indirect evaporative cooling system of claim 4, further comprising a circulating water pump, wherein the circulating water pump is connected with the spray unit through a pipeline, and the circulating water pump is connected with the circulating water tank through a pipeline.
6. The indirect evaporative cooling system of claim 4, further comprising a water pan having a water receiving surface for receiving dripping water from the heat exchanger, the water receiving surface being inclined toward the circulation tank.
7. The indirect evaporative cooling system of claim 1, further comprising a filter screen disposed between the first fan and the heat exchanger.
8. The indirect evaporative cooling system of claim 1, further comprising an evaporator disposed in the first channel, wherein the indoor return air sequentially passes through the return air inlet, the first fan, the heat exchanger, and the evaporator and then enters the room from the supply air outlet.
9. The indirect evaporative cooling system of claim 8, further comprising a compressor and a condenser, the compressor, the condenser and the evaporator being disposed at the same level.
10. The indirect evaporative cooling system of claim 1, wherein outdoor fresh air is used for heat exchange with the indoor return air, the fan unit comprises a second fan, and the outdoor fresh air is exhausted from the air outlet to the outside after passing through the air inlet, the heat exchanger and the second fan in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120737506.6U CN216361425U (en) | 2021-04-12 | 2021-04-12 | Indirect evaporative cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120737506.6U CN216361425U (en) | 2021-04-12 | 2021-04-12 | Indirect evaporative cooling system |
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| Publication Number | Publication Date |
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| CN216361425U true CN216361425U (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120737506.6U Active CN216361425U (en) | 2021-04-12 | 2021-04-12 | Indirect evaporative cooling system |
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| CN (1) | CN216361425U (en) |
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2021
- 2021-04-12 CN CN202120737506.6U patent/CN216361425U/en active Active
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