CN213901318U - Indirect evaporative cooling unit and air conditioning system - Google Patents
Indirect evaporative cooling unit and air conditioning system Download PDFInfo
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- CN213901318U CN213901318U CN202023023416.5U CN202023023416U CN213901318U CN 213901318 U CN213901318 U CN 213901318U CN 202023023416 U CN202023023416 U CN 202023023416U CN 213901318 U CN213901318 U CN 213901318U
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Abstract
The utility model discloses an indirect evaporative cooling unit and air conditioning system relates to air conditioning equipment technical field. The indirect evaporative cooling unit comprises a heat exchange core body, wherein the heat exchange core body comprises a fresh air channel and a return air channel which exchange heat with each other, the fresh air channel is provided with a fresh air inlet arranged at the lower end of the heat exchange core body and an air outlet arranged at the upper end of the heat exchange core body, and the return air channel is provided with a return air inlet and an air supply outlet arranged at the side part of the heat exchange core body; the heat exchange core body is divided into a plurality of sub heat exchange core bodies arranged at intervals from top to bottom, a spraying mechanism is arranged below each sub heat exchange core body, and the spraying mechanism is used for spraying water mist to the sub heat exchange core bodies. When the indirect evaporative cooling unit is used, the whole heat exchange core body can be fully covered by the water mist, the evaporation effect of the water mist can be utilized, the heat exchange capacity of the heat exchange core body can be fully exerted, and therefore the heat exchange efficiency can be effectively improved.
Description
Technical Field
The utility model relates to an air conditioning equipment technical field especially relates to an indirect evaporative cooling unit and air conditioning system.
Background
Cooling methods of air conditioning equipment are classified into direct evaporative cooling and indirect evaporative cooling. The indirect evaporative cooling is to transfer the cold energy of the outdoor fresh air to the indoor return air in a non-direct contact mode, and carry out equal-humidity cooling on the indoor return air.
At present, for an indirect evaporative cooling unit used in an air conditioning system, a spraying mechanism is generally arranged above a heat exchange core body. The spraying mechanism can spray water onto the heat exchange core body, so that the water flows from top to bottom under the action of gravity; meanwhile, outdoor fresh air flows upwards from the lower part of the heat exchange core body and blows water on the surface of the heat exchange core body, so that water evaporation is accelerated, heat exchange is carried out between the outdoor fresh air and indoor return air passing through the heat exchange core body, and the constant-humidity cooling of the indoor return air is realized. However, the contact effect between the spray water and the surface of the heat exchange core body is poor, so that the overall heat exchange efficiency is low when the arrangement is used.
Accordingly, there is a need for an indirect evaporative cooling unit and an air conditioning system to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an indirect evaporative cooling unit and air conditioning system can improve heat exchange efficiency.
To achieve the purpose, the utility model adopts the following technical proposal:
an indirect evaporative cooling unit comprises a heat exchange core body, wherein the heat exchange core body comprises a fresh air channel and a return air channel which exchange heat with each other, the fresh air channel is provided with a fresh air inlet arranged at the lower end of the heat exchange core body and an air outlet arranged at the upper end of the heat exchange core body, and the return air channel is provided with a return air inlet and an air supply outlet arranged at the side part of the heat exchange core body;
the heat exchange core body is divided into a plurality of sub heat exchange core bodies arranged at intervals from top to bottom, a spraying mechanism is arranged below each sub heat exchange core body, and the spraying mechanism is used for spraying water mist to the sub heat exchange core bodies.
Optionally, the spraying directions of the spraying mechanisms are all arranged downwards.
Optionally, the spraying mechanisms each comprise a plurality of nozzles.
Optionally, a plurality of the nozzles are uniformly distributed below the sub heat exchange core body.
Optionally, the number of the sub heat exchange cores and the number of the spraying mechanisms are two, and the two spraying mechanisms and the two sub heat exchange cores are arranged in a one-to-one correspondence manner.
Optionally, the indirect evaporative cooling unit further includes a water pump, an inlet of the water pump is communicated with the water supply mechanism, and an outlet of the water pump is communicated with an inlet of the spraying mechanism.
Optionally, the indirect evaporative cooling unit further includes a water pan, and the water pan is disposed at a lower portion of the lowermost spray mechanism.
Optionally, an evaporator is disposed downstream of the supply port in the flow direction of the air.
Optionally, the indirect evaporative cooling unit further includes a condenser and a compressor, and the condenser, the evaporator and the compressor are sequentially connected in a circulating manner to form a refrigerant circulation loop.
The utility model also provides an air conditioning system, it includes as above indirect evaporative cooling unit.
The utility model has the advantages that:
the utility model provides an indirect evaporative cooling unit and air conditioning system, after outdoor new trend gets into the new trend passageway, the outdoor new trend of accessible blows the water smoke that spraying mechanism jetted from bottom to top and flows, on blowing water smoke to the heat transfer core, carries out damp and hot exchange through water smoke evaporation and the indoor return air through the heat transfer core. Compared with the use of spray water, the water mist is easier to evaporate, so that the heat exchange efficiency can be improved. Meanwhile, the heat exchange core body is divided into a plurality of sub heat exchange core bodies, and the spraying mechanism is arranged below each sub heat exchange core body, so that water mist can cover the whole heat exchange core body more fully, the heat exchange capacity of the heat exchange core body is fully exerted, and the heat exchange efficiency is further improved.
Drawings
Fig. 1 is a schematic view of an overall structure of an indirect evaporative cooling unit provided in an embodiment of the present invention.
In the figure:
1. a heat exchange core body; 11. a fresh air inlet; 12. an air outlet; 13. an air return inlet; 14. an air supply outlet; 15. a sub heat exchange core; 2. a spraying mechanism; 21. a nozzle; 3. a first filter; 4. a second filter; 5. a water pump; 6. a water pan; 7. a condenser; 8. an external circulation fan; 9. an evaporator; 10. an internal circulation fan; 20. a compressor.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
This embodiment provides an indirect evaporative cooling unit, as shown in fig. 1, this indirect evaporative cooling unit includes heat exchange core 1, is equipped with the new trend passageway and the return air passageway of interconversion in heat exchange core 1's inside. The fresh air channel is provided with a fresh air inlet 11 arranged at the lower end of the heat exchange core body 1 and an air outlet 12 arranged at the upper end of the heat exchange core body 1, and the return air channel is provided with a return air inlet 13 and an air supply outlet 14 arranged at the side part of the heat exchange core body 1. It will be understood that the arrows in fig. 1 indicate the direction of flow of the fluid. At the moment, outdoor fresh air can enter the fresh air channel from the fresh air inlet 11 and then is discharged from the air outlet 12 after heat exchange; indoor return air can enter the return air channel through the return air inlet 13 and then is discharged from the air supply outlet 14 after heat exchange.
Further, the heat exchange core body 1 is divided into a plurality of sub heat exchange core bodies 15 arranged at intervals from top to bottom, a spraying mechanism 2 is arranged below each sub heat exchange core body 15, and the spraying mechanism 2 is used for spraying water mist to the sub heat exchange core bodies 15.
Therefore, after outdoor fresh air enters the fresh air channel from the fresh air inlet 11, the outdoor fresh air can blow the water mist sprayed by the spraying mechanism 2 to flow from bottom to top, blow the water mist onto the heat exchange core body 1, and perform damp-heat exchange with indoor return air passing through the heat exchange core body 1 through water mist evaporation. Compared with the use of spray water, the water mist is easier to evaporate, so that the heat exchange efficiency can be improved. Meanwhile, the heat exchange core body 1 is divided into a plurality of sub heat exchange core bodies 15, and the spraying mechanism 2 is arranged below each sub heat exchange core body 15, so that water mist can cover the whole heat exchange core body 1 more fully, the heat exchange capacity of the heat exchange core body 1 is fully exerted, and the heat exchange efficiency is further improved.
In this embodiment, the injection direction of spraying mechanism 2 all sets up down to make the water smoke that spraying mechanism 2 sprays can form against the current with outdoor new trend, further enlarge the coverage area of water smoke, promote the heat transfer effect.
Next, the specific structure of each part in the indirect evaporative cooling unit will be described.
In the indirect evaporative cooling unit, a first filter 3 is arranged at the upstream of a fresh air inlet 11 and used for filtering outdoor fresh air entering the heat exchange core body 1. A second filter 4 is provided upstream of the return air inlet 13 for filtering the indoor return air entering the heat exchange core 1. Since the structures of the first filter 3 and the second filter 4 are both prior art, they will not be described in detail herein.
Optionally, regarding the specific structure of the heat exchange core 1, the heat exchange core 1 includes a plurality of heat exchange tubes horizontally arranged, a fresh air channel is formed outside the heat exchange tubes, and an air return channel is formed inside the heat exchange tubes. At this time, the water mist can be sprayed and covered on the outer surface of the heat exchange pipe by the spraying mechanism 2 to exchange heat. From top to bottom, the plurality of heat exchange tubes are divided into a plurality of groups of heat exchange tubes arranged at intervals, so that a plurality of sub heat exchange core bodies 15 can be formed in one-to-one correspondence.
Of course, in other embodiments, other forms of heat exchanging core 1 may be used, and the present embodiment is not limited thereto.
In this embodiment, the two sub heat exchange core bodies 15 and the two spraying mechanisms 2 are both provided, and the two spraying mechanisms 2 and the two sub heat exchange core bodies 15 are provided in a one-to-one correspondence manner, so that a two-stage spraying structure is formed. Therefore, the integral structure is simpler on the basis of meeting higher heat exchange efficiency, and the cost is reduced. More specifically, as can be seen from fig. 1, one of the spraying mechanisms 2 is disposed between the two sub heat exchange cores 15, and the other spraying mechanism 2 is disposed at the fresh air inlet 11.
Optionally, the spraying mechanisms 2 each comprise a plurality of nozzles 21 to facilitate rapid spraying of the water mist. In this embodiment, for each spraying mechanism 2, the plurality of nozzles 21 are uniformly distributed below the heat exchange core sub-body 15 opposite to the spraying mechanism 2, so that the water mist is more uniformly covered on the heat exchange core body 1.
In addition, it can be understood that under the condition that the surface distance of the heat exchange core body is the same as that of the heat exchange core body 1, when the spraying mechanism 2 is adopted to spray water mist, the spraying radius of the spraying mechanism is obviously larger than the spraying radius when the spraying mechanism is used, the coverage range is wider, the using number of the nozzles 21 can be reduced, and the material cost is reduced.
Optionally, the indirect evaporative cooling unit further comprises a water pump 5. Wherein, the import and the water supply mechanism (not shown in the figure) intercommunication of water pump 5, the export of water pump 5 and the import intercommunication of spraying mechanism 2 to accessible water pump 5 supplies water for spraying mechanism 2, convenient to use.
Optionally, the indirect evaporative cooling unit further comprises a water pan 6, and the water pan 6 is arranged at the lower part of the lowermost spraying mechanism 2, so that water can be contained and dripped through the water pan 6, and cleanness of the site is guaranteed.
In this embodiment, a component for cooling is further provided in the indirect evaporative cooling unit. Specifically, as shown in fig. 1, an evaporator 9 is provided downstream of the air blowing port 14 in the flow direction of the air. After the air discharged from the air supply opening 14 flows through the evaporator 9, the air can be further cooled by the evaporator 9 to meet the refrigeration requirement. Further, an internal circulation fan 10 is disposed downstream of the evaporator 9, and the obtained cold air can be sent into the room by the internal circulation fan 10 for use by the user.
Further, the indirect evaporative cooling unit further comprises a condenser 7 and a compressor 20, wherein the condenser 7, the evaporator 9 and the compressor 20 are sequentially connected in a circulating mode to form a refrigerant circulating loop. At this time, the refrigerant in the evaporator 9 can be sent to the condenser 7 through the compressor 20, the refrigerant is cooled by the fresh outdoor air entering the condenser 7, the cooled refrigerant is sent out by the condenser 7, and the refrigerant is sent to the evaporator 9 after throttling, so that the refrigeration cycle is completed.
In this embodiment, an external circulation fan 8 is further disposed downstream of the condenser 7 in the air flowing direction, and the hot air generated in the refrigeration process can be rapidly discharged to the outside of the room through the external circulation fan 8. Since the structures of the condenser 7, the evaporator 9, the compressor 20, the outer circulation fan 8 and the inner circulation fan 9 are all the prior art, the detailed description thereof is omitted.
The embodiment also provides an air conditioning system which comprises the indirect evaporative cooling unit.
In summary, the embodiment provides an indirect evaporative cooling unit and an air conditioning system, by dividing the heat exchange core 1 into a plurality of sub heat exchange cores 15 and spraying water mist to each sub heat exchange core 15, the water mist can fully cover the whole heat exchange core 1, not only can the evaporation effect of the water mist be utilized, but also the heat exchange capacity of the heat exchange core 1 can be fully exerted, and the heat exchange efficiency is effectively improved.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. An indirect evaporative cooling unit is characterized by comprising a heat exchange core body (1), wherein the heat exchange core body (1) comprises a fresh air channel and a return air channel which exchange heat with each other, the fresh air channel is provided with a fresh air inlet (11) arranged at the lower end of the heat exchange core body (1) and an air outlet (12) arranged at the upper end of the heat exchange core body (1), and the return air channel is provided with a return air inlet (13) and an air supply outlet (14) arranged at the side part of the heat exchange core body (1);
the heat exchange core body (1) is divided into a plurality of sub heat exchange core bodies (15) arranged at intervals from top to bottom, a spraying mechanism (2) is arranged below each sub heat exchange core body (15), and the spraying mechanism (2) is used for spraying water mist to the sub heat exchange core bodies (15).
2. The indirect evaporative cooling unit of claim 1, wherein the spraying direction of the spraying mechanisms (2) is downward.
3. The indirect evaporative cooling unit of claim 1, wherein the spray mechanisms (2) each comprise a plurality of nozzles (21).
4. The indirect evaporative cooling unit of claim 3, wherein a plurality of the nozzles (21) are evenly distributed below the sub heat exchange cores (15).
5. The indirect evaporative cooling unit of claim 1, wherein the sub heat exchange cores (15) and the spraying mechanisms (2) are provided in two, and the two spraying mechanisms (2) and the two sub heat exchange cores (15) are provided in one-to-one correspondence.
6. The indirect evaporative cooling unit of claim 1, further comprising a water pump (5), wherein an inlet of the water pump (5) is in communication with a water supply mechanism, and an outlet of the water pump (5) is in communication with an inlet of the spraying mechanism (2).
7. The indirect evaporative cooling unit of claim 1, further comprising a water pan (6), the water pan (6) being disposed below the lowermost spray mechanism (2).
8. The indirect evaporative cooling unit of any of claims 1-7, wherein an evaporator (9) is provided downstream of the supply air outlet (14) in the direction of flow of the air.
9. The indirect evaporative cooling unit of claim 8, further comprising a condenser (7) and a compressor (20), wherein the condenser (7), the evaporator (9) and the compressor (20) are sequentially connected in a circulating manner to form a refrigerant circulation loop.
10. An air conditioning system comprising an indirect evaporative cooling unit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023023416.5U CN213901318U (en) | 2020-12-14 | 2020-12-14 | Indirect evaporative cooling unit and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023023416.5U CN213901318U (en) | 2020-12-14 | 2020-12-14 | Indirect evaporative cooling unit and air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213901318U true CN213901318U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023023416.5U Active CN213901318U (en) | 2020-12-14 | 2020-12-14 | Indirect evaporative cooling unit and air conditioning system |
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| Country | Link |
|---|---|
| CN (1) | CN213901318U (en) |
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2020
- 2020-12-14 CN CN202023023416.5U patent/CN213901318U/en active Active
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