CN210512020U - Indirect evaporative cooling equipment for preparing dew point temperature cold air and direct-flow and closed air conditioning system - Google Patents
Indirect evaporative cooling equipment for preparing dew point temperature cold air and direct-flow and closed air conditioning system Download PDFInfo
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- CN210512020U CN210512020U CN201921485890.4U CN201921485890U CN210512020U CN 210512020 U CN210512020 U CN 210512020U CN 201921485890 U CN201921485890 U CN 201921485890U CN 210512020 U CN210512020 U CN 210512020U
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Abstract
The utility model particularly relates to an indirect evaporative cooling equipment and straight-flow, closed air conditioning system who prepares dew point temperature cold wind. The indirect evaporative cooling equipment comprises a shell, an indirect evaporative heat exchanger, a surface cooler, a spraying device and a water collecting tank; the shell is provided with a primary side air inlet, a secondary side air inlet, a primary side air outlet and a secondary side air outlet; the indirect evaporation heat exchanger is arranged in the shell and comprises a dry channel and a wet channel which are isolated from each other; the surface cooler is arranged on the inner side of the secondary air inlet; the spraying device is arranged at the inlet of the wet channel of the indirect evaporation heat exchanger; the water collecting tank is arranged at the outlet of the wet channel of the indirect evaporation heat exchanger; the water in the water collecting tank enters the surface cooler, is sprayed out by the spraying device, enters a wet channel of the indirect evaporation heat exchanger, and finally flows back to the water collecting tank. The utility model discloses can prepare the cold wind that approaches outdoor air dew point temperature, reduce the limit of the air-out temperature of conventional indirect evaporative cooling equipment to simple structure, system is efficient.
Description
Technical Field
The utility model relates to a refrigeration and air conditioner field, in particular to prepare indirect evaporative cooling equipment and air conditioning system of dew point temperature cold wind.
Background
The evaporative cooling technology is a technology for preparing cold air or cold water by taking away heat through evaporation of water by utilizing the unsaturation of outdoor air. The evaporative cooling apparatuses are classified into direct evaporative cooling apparatuses and indirect evaporative cooling apparatuses. The direct evaporative cooling equipment directly sends air into the regulated space after the air is subjected to heat insulation and humidification. The indirect evaporative cooling equipment is internally divided into a dry channel and a wet channel, primary air flows through the dry channel and is sent into a regulated space after being subjected to equal-humidity cooling, secondary air flows through the wet channel, water in the wet channel is evaporated to absorb heat, and the secondary air is exhausted after being subjected to heat insulation and humidification.
The theoretical lowest temperature at which cold or cold water can be produced by conventional evaporative cooling equipment is the wet bulb temperature of the outdoor air. In order to fully exert the cooling capacity of outdoor dry air and prepare cold air or cold water with lower temperature, a plurality of novel devices or systems are proposed. ZL 02100431.5 provides a method and its apparatus for indirect evaporative cooling, on the basis of the conventional evaporative cooler, add the air-water counterflow heat exchanger in the air intake, send a part of cooling water in the cooler bottom to users through the water pump, another part is poured into the air-water counterflow heat exchanger of the air intake and sent to the spray thrower in the cooler together with user's backwater to spray. The invention can prepare cold water approaching the dew point temperature of outdoor air for users to use. ZL99259083.3 provides a multi-stage evaporative cooling air conditioner, which is characterized in that a plurality of indirect evaporative coolers are connected in series, one part of cold air produced by the previous stage indirect evaporative cooler enters a dry channel of the next stage indirect evaporative cooler to be processed, the other part of cold air enters a wet channel of the next stage indirect evaporative cooler to be used as a working medium, and the air outlet temperature can approach the dew point temperature of outdoor air through multi-stage processing. ZL 01819555.5 and ZL 201010033817.0 respectively propose a dew point indirect evaporative cooler, on the curb plate of doing wet passageway or dry channel's terminal perforation, the wet passageway is gone into through the aperture to some dry channel's air after the precooling, and the wet bulb temperature of the air after the precooling can reduce, and the temperature of the air current of cooler output can approach the dew point temperature of input air current.
However, although the indirect evaporative cooling device proposed in ZL 02100431.5 can produce cold water approaching the dew point temperature of the outdoor space for users, most users need to provide another set of heat exchange equipment to produce cold air from the cold water. The multistage evaporation refrigeration air conditioner proposed by ZL99259083.3 has large volume, large number of fans and correspondingly high manufacturing cost and energy consumption. The dew point indirect evaporative coolers proposed by ZL 01819555.5 and ZL 201010033817.0 are complex in structure and poor in controllability and adjustability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an indirect evaporative cooling equipment and air conditioning system who prepares dew point temperature cold wind can prepare the cold wind that approaches outdoor air dew point temperature, has reduced the limit of conventional indirect evaporative cooling equipment's air-out temperature to simple structure, system efficiency is high.
The utility model discloses indirect evaporative cooling equipment for preparing dew point temperature cold air, which comprises a shell, an indirect evaporative heat exchanger, a surface air cooler, a spraying device and a water collecting tank;
the shell is provided with a primary side air inlet, a secondary side air inlet, a primary side air outlet and a secondary side air outlet; the indirect evaporation heat exchanger is arranged in the shell and comprises a dry channel and a wet channel which are isolated from each other; primary side air enters from a primary side air inlet, passes through a dry channel of the indirect evaporation heat exchanger and is discharged from a primary side air outlet; secondary side air enters from a secondary side air inlet, passes through a wet channel of the indirect evaporation heat exchanger and is discharged from a secondary side air outlet;
the surface cooler is arranged on the inner side of the secondary side air inlet and used for cooling secondary side inlet air;
the spraying device is arranged at the inlet of the wet channel of the indirect evaporation heat exchanger and is used for spraying water to be mixed with the cooled secondary side inlet air;
the water collecting tank is arranged at the outlet of the wet channel of the indirect evaporation heat exchanger and is used for collecting water discharged from the wet channel of the indirect evaporation heat exchanger;
the surface cooler is respectively connected with the spraying device and the water collecting tank, water in the water collecting tank enters the surface cooler, then is sprayed out through the spraying device, enters a wet channel of the indirect evaporation heat exchanger, and finally flows back to the water collecting tank.
Optionally, the device further comprises a partition plate, wherein the partition plate is arranged in the shell; the shell, the partition plate, the primary side air inlet, the dry channel of the indirect evaporation heat exchanger and the primary side air outlet form a primary side air channel; the shell, the partition plate, the secondary side air inlet, the wet channel of the indirect evaporation heat exchanger and the secondary side air outlet form a secondary side air channel; the primary side air duct and the secondary side air duct are isolated from each other.
Optionally, the air conditioner further comprises a primary side fan and a secondary side fan, wherein the primary side fan is arranged in the primary side air duct, and the secondary side fan is arranged in the secondary side air duct.
Optionally, the water collecting device further comprises a water pump, and the water pump is arranged in the water collecting tank.
Optionally, the indirect evaporative heat exchanger is a tubular wind-wind heat exchanger or a plate wind-wind heat exchanger.
Optionally, the surface cooler adopts a tube-fin air-water heat exchanger.
The utility model discloses a straight-flow air conditioning system, which comprises an indoor air inlet, an indoor air outlet and indirect evaporative cooling equipment for preparing dew point temperature cold air; the indoor air inlet is connected with a primary side air outlet of the indirect evaporative cooling equipment, and the indoor air outlet and the primary side air inlet, the secondary side air inlet and the secondary side air outlet of the indirect evaporative cooling equipment are connected with the outdoor air.
The utility model discloses a closed air conditioning system, which comprises an indoor air inlet, an indoor air outlet and indirect evaporative cooling equipment for preparing dew point temperature cold air; the indoor air inlet is connected with a primary side air outlet of the indirect evaporative cooling equipment, the indoor air outlet is connected with a primary side air inlet of the indirect evaporative cooling equipment, and a secondary side air inlet and a secondary side air outlet of the indirect evaporative cooling equipment are connected with the outdoor air.
Compared with the prior art, the utility model, main difference and effect lie in:
the indirect evaporative cooling equipment is provided with the surface cooler, the spraying device and the water collecting tank which are connected with each other, and the temperature of secondary side air is continuously reduced through circulating water, so that the temperature of primary side air is continuously reduced, cold air approaching the dew point temperature of outdoor air can be prepared, the limit of the air outlet temperature of the conventional indirect evaporative cooling equipment is reduced, the structure is simple, and the system efficiency is high.
Drawings
Fig. 1 is a schematic view of an indirect evaporative cooling apparatus for producing dew point temperature cold wind according to a first embodiment of the present invention;
fig. 2 is a schematic view of a dc air conditioning system according to a second embodiment of the present invention;
fig. 3 is a schematic view of a closed air conditioning system according to a third embodiment of the present invention.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
The utility model discloses a first embodiment relates to an indirect evaporative cooling equipment of system dew point temperature cold wind. Fig. 1 is a schematic view of an indirect evaporative cooling apparatus for producing dew point temperature cool air according to a first embodiment of the present invention.
Specifically, as shown in fig. 1, the indirect evaporative cooling apparatus 100 for producing dew point temperature cool air includes a casing 101, an indirect evaporative heat exchanger 102, a surface air cooler 103, a shower device 104, and a header tank 105.
The housing 101 is provided with a primary side air inlet 1011, a secondary side air inlet 1012, a primary side air outlet 1013, and a secondary side air outlet 1014. As shown in fig. 1, the primary air inlet 1011 is disposed at a lower right corner of the housing 101, the secondary air inlet 1012 is disposed at an upper right corner of the housing 101, the primary air outlet 1013 is disposed at an upper left corner of the housing 101, and the secondary air outlet 1014 is disposed at a lower left corner of the housing 101. It can be understood that the positions of the primary side air inlet 1011, the secondary side air inlet 1012, the primary side air outlet 1013, and the secondary side air outlet 1014 can be adjusted according to actual needs, as long as heat exchange between the primary side air and the secondary side air can be achieved, and the invention is not limited thereto.
The indirect evaporative heat exchanger 102 is disposed within the housing 101 and includes a dry channel 1021 and a wet channel 1022 that are isolated from each other. As shown in fig. 1, the dry channel 1021 flows from the lower right corner of the indirect evaporative cooling device 100 to the upper left corner of the indirect evaporative cooling device 100, and the wet channel 1022 flows from the upper right corner of the indirect evaporative cooling device 100 to the lower left corner of the indirect evaporative cooling device 100. It can be understood that the flow directions of the dry channel 1021 and the wet channel 1022 may be adjusted according to the positions of the primary side air inlet 1011, the secondary side air inlet 1012, the primary side air outlet 1013, and the secondary side air outlet 1014, as long as heat exchange between the primary side air and the secondary side air can be achieved, and the invention is not limited thereto.
The primary side air inlet enters from the primary side air inlet 1011, passes through the dry channel 1021 of the indirect evaporation heat exchanger 102, and is discharged from the primary side air outlet 1013, that is, the primary side air outlet. Secondary side inlet air enters from the secondary side air inlet 1012, passes through the wet channel 1022 of the indirect evaporation heat exchanger 102, and is discharged from the secondary side air outlet 1014, namely secondary side outlet air. The primary side air inlet can be outdoor fresh air or outdoor return air, the secondary side air inlet can be outdoor fresh air, the primary side air inlet and the secondary side air inlet exchange heat respectively in a dry channel 1021 and a wet channel 1022 of the indirect evaporative heat exchanger 102, and the primary side air outlet after heat exchange is cold air prepared by the indirect evaporative cooling equipment 100.
The surface cooler 103 is disposed inside the secondary air inlet 1012 and is used for cooling the secondary intake air.
The spraying device 104 is disposed at an inlet of the wet channel 1022 of the indirect evaporative heat exchanger 102, and is used for spraying the spraying water to be mixed with the cooled secondary side inlet air.
A water collection tank 105 is provided at an outlet of the wet passage 1022 of the indirect evaporative heat exchanger 102 for collecting water discharged from the wet passage 1022 of the indirect evaporative heat exchanger 102.
The surface air cooler 103 is respectively connected with the spraying device 104 and the water collecting tank 105 through the water pipe 106, water in the water collecting tank 105 enters the surface air cooler 103 through the water pipe 106, then is sprayed out through the spraying device 104, enters the wet channel 1022 of the indirect evaporation heat exchanger 102, and finally flows back to the water collecting tank 105 for realizing water circulation.
The heat exchange process in the indirect evaporative cooling apparatus 100 is as follows: the primary side intake air enters from the primary side air inlet 1011 and then enters the dry channel 1021 of the indirect evaporative heat exchanger 102. The secondary side inlet air enters from the secondary side air inlet 1012, passes through the surface air cooler 103, is subjected to equal-humidity temperature reduction, and the temperature of the secondary side inlet air is reduced to the temperature of circulating water in the surface air cooler 103 and then enters a wet channel 1022 of the indirect evaporation heat exchanger 102.
When the secondary side inlet air enters the wet channel 1022 of the indirect evaporation heat exchanger 102, the cooled secondary side inlet air is mixed with the spray water sprayed by the spray device 104, a part of the spray water is evaporated to absorb heat, the secondary side inlet air is humidified in an insulated manner, and the temperature of the secondary side inlet air and the temperature of the residual spray water are continuously reduced to the wet bulb temperature of the secondary side inlet air passing through the surface air cooler 103.
The secondary side air inlet in the wet channel 1022 of the indirect evaporation heat exchanger 102 exchanges heat with the primary side air inlet in the dry channel 1021 of the indirect evaporation heat exchanger 102, and the heat of the primary side air inlet is taken away, so that the primary side air inlet is subjected to equal-humidity cooling.
The water collecting tank 105 collects the water discharged from the wet passage 1022 of the indirect evaporation heat exchanger 102, and the water in the water collecting tank 105 enters the surface air cooler 103, is then sprayed out through the spraying device 104, enters the wet passage 1022 of the indirect evaporation heat exchanger 102, and finally flows back to the water collecting tank 105. In the circulation process, the temperature of the circulating water is continuously reduced and finally stabilized to the dew point temperature of the secondary side inlet air outside the secondary side air inlet 1012, so that the temperature of the primary side outlet air is also reduced to the dew point temperature of the secondary side inlet air outside the secondary side air inlet 1012.
The indirect evaporative cooling equipment 100 is provided with the surface cooler 103, the spraying device 104 and the water collecting tank 105 which are connected with each other, the temperature of secondary side air is continuously reduced through circulating water, so that the temperature of primary side air is continuously reduced, cold air approaching the dew point temperature of outdoor air can be prepared, the limit of the air outlet temperature of the conventional indirect evaporative cooling equipment is reduced, the structure is simple, and the system efficiency is high.
Wherein the indirect evaporative cooling apparatus 100 further comprises a partition 107, the partition 107 being disposed within the housing 101. The housing 101, the partition 107, the primary side air inlet 1011, the dry channel 1021 of the indirect evaporative heat exchanger 102, and the primary side air outlet 1013 form a primary side air duct. The housing 101, the partition 107, the secondary air inlet 1012, the wet channel 1022 of the indirect evaporative heat exchanger 102, and the secondary air outlet 1014 form a secondary air path. The primary side air duct and the secondary side air duct are isolated from each other. As shown in fig. 1, the primary air duct flows from the lower right corner of the indirect evaporative cooling apparatus 100 to the upper left corner of the indirect evaporative cooling apparatus 100, and the secondary air duct flows from the upper right corner of the indirect evaporative cooling apparatus 100 to the lower left corner of the indirect evaporative cooling apparatus 100. It can be understood that the flow directions of the primary air duct and the secondary air duct may be adjusted according to the positions of the primary air inlet 1011, the secondary air inlet 1012, the primary air outlet 1013, the secondary air outlet 1014, the dry channel 1021, and the wet channel 1022, as long as the heat exchange between the primary air and the secondary air can be realized, and the present invention is not limited thereto.
The indirect evaporative cooling device 100 further includes a primary side fan 108 and a secondary side fan 109, wherein the primary side fan 108 is disposed in the primary side air duct, and the secondary side fan 109 is disposed in the secondary side air duct. The primary side fan 108 is configured to guide primary side intake air to enter from the primary side air inlet 1011, and exhaust the primary side intake air from the primary side air outlet 1013 after passing through the dry channel 1021 of the indirect evaporation heat exchanger 102. The secondary side fan 109 is used for guiding secondary side inlet air to enter from the secondary side air inlet 1012, and after passing through the wet channel 1022 of the indirect evaporation heat exchanger 102, the secondary side inlet air is discharged from the secondary side air outlet 1014. As shown in fig. 1, the primary side fan 108 is disposed at the outlet of the dry channel 1021 of the indirect evaporative heat exchanger 102 and close to the primary side air outlet 1013, and the secondary side fan 109 is disposed at the outlet of the wet channel 1022 of the indirect evaporative heat exchanger 102 and close to the secondary side air outlet 1014. It is understood that the primary side fan 108 may be disposed at the inlet of the dry channel 1021 of the indirect evaporative heat exchanger 102 and close to the primary side air inlet 1011, and the secondary side fan 109 may be disposed at the inlet of the wet channel 1022 of the indirect evaporative heat exchanger 102 and close to the secondary side air inlet 1012, as long as the primary side air and the secondary side air can be guided to flow through the primary side air duct and the secondary side air respectively, which is not limited herein.
Wherein, the indirect evaporative cooling device 100 further comprises a water pump 110, and the water pump 110 is disposed in the water collection tank 105. As shown in fig. 1, the water pump 110 pumps the water in the water collection tank 105 to the surface cooler 103 from the bottom up via the water pipe 106. It is understood that the pumping direction of the water pump 110 can be adjusted according to the positions of the surface air cooler 103 and the water collecting tank 105, as long as the circulation of water among the surface air cooler 103, the spray device 104, the wet channel 1022 of the indirect evaporation heat exchanger 102 and the water collecting tank 105 can be realized, and the present invention is not limited thereto.
The indirect evaporation heat exchanger 102 is a tubular wind-wind heat exchanger or a plate wind-wind heat exchanger, and is made of metal or high polymer material with high heat transfer coefficient.
The surface air cooler 103 is a tube-fin air-water heat exchanger made of metal or high polymer material with high heat transfer coefficient, and the water flows through the tube and the air flows out of the tube, and the main flow direction of the water and the main flow direction of the wind are opposite.
A second embodiment of the present invention relates to a direct current type air conditioning system. Fig. 2 is a schematic view of a dc air conditioning system according to a second embodiment of the present invention.
Specifically, as shown in fig. 2, the direct-flow type air conditioning system 200 includes one or more indirect evaporative cooling apparatuses 100 that produce dew-point-temperature cool air, and a plurality of indirect evaporative cooling apparatuses 100 may be provided in parallel. The once-through air conditioning system 200 may be used, for example, in an air-conditioned room 201, and an indoor air inlet 2011 and an indoor air outlet 2012 are provided on the air-conditioned room 201.
An indoor air inlet 2011 of the air-conditioned room 201 is connected with the primary side air outlet 1013 of the indirect evaporative cooling device 100 through the air supply pipe 202, and primary side outlet air produced by the indirect evaporative cooling device 100 enters the indoor air inlet 2011 of the air-conditioned room 201 to supply air to the air-conditioned room 201 indoors.
The indoor outlet 2012 of the air-conditioned room 201 is connected to the outside for exhausting air indoors to the air-conditioned room 201.
The primary side air inlet 1011 and the secondary side air inlet 1012 of the indirect evaporative cooling equipment 100 are respectively connected with the outdoor, and are used for taking outdoor fresh air as primary side inlet air and secondary side inlet air to enter the indirect evaporative cooling equipment 100.
The secondary side air outlet 1014 of the indirect evaporative cooling apparatus 100 is connected to the outdoor, and the secondary side intake air is discharged from the secondary side air outlet 1014, that is, the secondary side outlet air.
The direct-flow type air conditioning system 200 can adjust the temperature of the air-conditioned room 201 or the like using the cold air that is made by the indirect evaporative cooling device 100 and approaches the dew point temperature of the outdoor air.
The first embodiment corresponds to the present embodiment, and the present embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
A third embodiment of the present invention relates to a closed air conditioning system. Fig. 3 is a schematic view of a closed air conditioning system according to a third embodiment of the present invention.
Specifically, as shown in fig. 3, the closed air conditioning system 300 includes one or more indirect evaporative cooling apparatuses 100 for producing cold air at a dew point temperature, and a plurality of indirect evaporative cooling apparatuses 100 may be provided in parallel. The closed air conditioning system 300 may be used, for example, in an air conditioning room 201, and an indoor air inlet 2011 and an indoor air outlet 2012 are provided on the air conditioning room 201.
An indoor air inlet 2011 of the air-conditioned room 201 is connected with the primary side air outlet 1013 of the indirect evaporative cooling device 100 through the air supply pipe 202, and primary side outlet air produced by the indirect evaporative cooling device 100 enters the indoor air inlet 2011 of the air-conditioned room 201 to supply air to the air-conditioned room 201 indoors.
The indoor air outlet 2012 of the air-conditioned room 201 is connected to the primary air inlet 1011 of the indirect evaporative cooling apparatus 100 via the air return pipe 203, and is configured to take the indoor return air discharged from the indoor air outlet 2012 of the air-conditioned room 201 as the primary air inlet into the indirect evaporative cooling apparatus 100.
The secondary side air inlet 1012 of the indirect evaporative cooling equipment 100 is connected with the outdoor and used for taking outdoor fresh air as secondary side inlet air to enter the indirect evaporative cooling equipment 100.
The secondary side air outlet 1014 of the indirect evaporative cooling apparatus 100 is connected to the outdoor, and the secondary side intake air is discharged from the secondary side air outlet 1014, that is, the secondary side outlet air.
The closed air-conditioning system 300 can use the cool air made by the indirect evaporative cooling apparatus 100 that approaches the dew point temperature of the outdoor air, and can use the indoor return air discharged from the air-conditioned room 201 as the primary side intake air of the indirect evaporative cooling apparatus 100 to adjust the temperature of the air-conditioned room 201 and the like.
The first embodiment corresponds to the present embodiment, and the present embodiment can be implemented in cooperation with the first embodiment. The related technical details mentioned in the first embodiment are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the first embodiment.
The method embodiments of the present invention can be implemented in software, hardware, firmware, and the like. Whether implemented in software, hardware, or firmware, the instruction code may be stored in any type of computer-accessible memory (e.g., permanent or modifiable, volatile or non-volatile, solid or non-solid, fixed or removable media, etc.). Also, the Memory may be, for example, Programmable Array Logic (PAL), Random Access Memory (RAM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), a magnetic disk, an optical disk, a Digital Versatile Disk (DVD), or the like.
It should be noted that, each unit/module mentioned in each device implementation of the present invention is a logic unit/module, and physically, a logic unit may be a physical unit, or may be a part of a physical unit, and may also be implemented by a combination of a plurality of physical units, and the physical implementation manner of these logic units itself is not the most important, and the combination of the functions implemented by these logic units is the key to solve the technical problem provided by the present invention. Furthermore, in order to highlight the innovative part of the present invention, the above-mentioned embodiments of the device of the present invention do not introduce the elements that are not closely related to the solution of the technical problem proposed by the present invention, which does not indicate that the above-mentioned embodiments of the device do not have other elements.
It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. An indirect evaporative cooling device for preparing dew point temperature cold air is characterized by comprising a shell, an indirect evaporative heat exchanger, a surface air cooler, a spraying device and a water collecting tank;
the shell is provided with a primary side air inlet, a secondary side air inlet, a primary side air outlet and a secondary side air outlet; the indirect evaporative heat exchanger is arranged in the shell and comprises a dry channel and a wet channel which are isolated from each other; primary side air enters from the primary side air inlet, passes through the dry channel of the indirect evaporation heat exchanger and is discharged from the primary side air outlet; secondary side air enters from the secondary side air inlet, passes through the wet channel of the indirect evaporation heat exchanger and is discharged from the secondary side air outlet;
the surface cooler is arranged on the inner side of the secondary side air inlet and is used for cooling the secondary side inlet air;
the spraying device is arranged at the inlet of the wet channel of the indirect evaporation heat exchanger and is used for spraying water to be mixed with the cooled secondary side inlet air;
the water collection tank is arranged at an outlet of the wet channel of the indirect evaporation heat exchanger and is used for collecting water discharged from the wet channel of the indirect evaporation heat exchanger;
the surface cooler is respectively connected with the spraying device and the water collecting tank, and water in the water collecting tank enters the surface cooler, is sprayed out by the spraying device, enters the wet channel of the indirect evaporation heat exchanger and finally flows back to the water collecting tank.
2. The apparatus of claim 1, further comprising a baffle disposed within the housing; the shell, the partition plate, the primary side air inlet, the dry channel of the indirect evaporation heat exchanger and the primary side air outlet form a primary side air channel; the shell, the partition plate, the secondary side air inlet, the wet channel of the indirect evaporation heat exchanger and the secondary side air outlet form a secondary side air channel; the primary side air duct and the secondary side air duct are isolated from each other.
3. The apparatus of claim 2 further comprising a primary side fan and a secondary side fan, the primary side fan being disposed within the primary side air duct and the secondary side fan being disposed within the secondary side air duct.
4. The apparatus of claim 1, further comprising a water pump disposed within the water collection tank.
5. The apparatus of claim 1, wherein the indirect evaporative heat exchanger is a tubular wind-wind heat exchanger or a plate wind-wind heat exchanger.
6. The apparatus of claim 1, wherein the surface air cooler employs a tube-fin wind-water heat exchanger.
7. A straight-flow air conditioning system comprising an indoor air inlet, an indoor air outlet and the indirect evaporative cooling apparatus for producing dew point temperature cold air according to any one of claims 1 to 6; the indoor air inlet is connected with a primary side air outlet of the indirect evaporative cooling equipment, and the indoor air outlet is connected with a primary side air inlet, a secondary side air inlet and a secondary side air outlet of the indirect evaporative cooling equipment outdoors.
8. A closed air conditioning system, characterized by comprising an indoor air inlet, an indoor air outlet and the indirect evaporative cooling equipment for preparing dew point temperature cold air according to any one of claims 1 to 6; the indoor air inlet is connected with a primary side air outlet of the indirect evaporative cooling equipment, the indoor air outlet is connected with a primary side air inlet of the indirect evaporative cooling equipment, and a secondary side air inlet and a secondary side air outlet of the indirect evaporative cooling equipment are connected with the outside.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921485890.4U CN210512020U (en) | 2019-09-05 | 2019-09-05 | Indirect evaporative cooling equipment for preparing dew point temperature cold air and direct-flow and closed air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921485890.4U CN210512020U (en) | 2019-09-05 | 2019-09-05 | Indirect evaporative cooling equipment for preparing dew point temperature cold air and direct-flow and closed air conditioning system |
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| CN210512020U true CN210512020U (en) | 2020-05-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469929A (en) * | 2019-09-05 | 2019-11-19 | 优刻得科技股份有限公司 | Produce the indirect evaporating-cooling equipment and air-conditioning system of dew-point temperature cold wind |
| CN112268326A (en) * | 2020-11-12 | 2021-01-26 | 依米康智能工程有限公司 | Indirect evaporative cooler and control method |
-
2019
- 2019-09-05 CN CN201921485890.4U patent/CN210512020U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469929A (en) * | 2019-09-05 | 2019-11-19 | 优刻得科技股份有限公司 | Produce the indirect evaporating-cooling equipment and air-conditioning system of dew-point temperature cold wind |
| CN112268326A (en) * | 2020-11-12 | 2021-01-26 | 依米康智能工程有限公司 | Indirect evaporative cooler and control method |
| CN112268326B (en) * | 2020-11-12 | 2024-05-14 | 依米康智能工程有限公司 | Indirect evaporative cooler and control method |
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