CN212657823U - An evaporative cooling two-stage pre-chilled air-conditioning unit - Google Patents
An evaporative cooling two-stage pre-chilled air-conditioning unit Download PDFInfo
- Publication number
- CN212657823U CN212657823U CN202021840236.3U CN202021840236U CN212657823U CN 212657823 U CN212657823 U CN 212657823U CN 202021840236 U CN202021840236 U CN 202021840236U CN 212657823 U CN212657823 U CN 212657823U
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- Prior art keywords
- air
- water
- dew point
- heat pipe
- conditioning unit
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- 238000001816 cooling Methods 0.000 title claims abstract description 46
- 238000004378 air conditioning Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 238000001704 evaporation Methods 0.000 claims abstract description 22
- 230000008020 evaporation Effects 0.000 claims abstract description 22
- 238000009833 condensation Methods 0.000 claims abstract description 12
- 230000005494 condensation Effects 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract 10
- 239000000945 filler Substances 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
本实用新型公开了一种蒸发冷却的两级预冷水冷空调机组，包括壳体相对两侧壁上分别设置的进风口和送风口，两风口依次设置有分离式热管换热器、波纹流道叉流式露点间接蒸发冷却器和直接蒸发冷却器，分离式热管换热器由分离式热管蒸发端和分离式热管冷凝端组成，直接蒸发冷却器分为下部填料段和上部填料段，进风口、分离式热管蒸发端、波纹流道叉流式露点间接蒸发冷却器、直接蒸发冷却器下部填料段和送风口位于同一水平通道内。本实用新型的空调机组，利用蒸发冷却技术实现两级预冷，大幅度降低进风的湿球温度，经两级预冷后再在直接蒸发冷却填料器中等焓降温，通过挡板的切换，实现冷风或冷水的供给。
The utility model discloses an evaporative cooling two-stage pre-cooling cooling air-conditioning unit, which comprises an air inlet and an air supply outlet respectively arranged on two opposite side walls of a casing, and the two air outlets are sequentially provided with a separate heat pipe heat exchanger and a corrugated flow channel. Cross-flow dew point indirect evaporative cooler and direct evaporative cooler, separate heat pipe heat exchanger consists of separate heat pipe evaporation end and separate heat pipe condensation end, direct evaporative cooler is divided into lower packing section and upper packing section, air inlet , The evaporation end of the separate heat pipe, the corrugated channel cross-flow dew point indirect evaporative cooler, the lower packing section of the direct evaporative cooler and the air supply port are located in the same horizontal channel. The air-conditioning unit of the utility model realizes two-stage pre-cooling by using the evaporative cooling technology, which greatly reduces the wet bulb temperature of the intake air. Realize the supply of cold air or cold water.
Description
Technical Field
The utility model belongs to the technical field of air conditioning equipment, a evaporative cooling's two-stage precooling water-cooling air conditioning unit is related to.
Background
The evaporative cooling technology is widely applied due to the advantages of energy conservation, low carbon, economy and health, and can prepare cold air and cold water by relying on the principle that water is vaporized and absorbs heat under the driving of partial pressure difference of water vapor and simultaneously the temperature of the water and the air is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an evaporation cooling's two-stage precooling water-cooled air conditioning unit utilizes heat pipe heat transfer technique and the indirect evaporative cooling technique of dew point to realize the two-stage precooling, reduces the wet bulb temperature of air inlet by a wide margin, and the air inlet is cooled down in direct evaporative cooling filler section isenthalpic behind the two-stage precooling again, through the switching that can open and close the baffle, realizes the supply of cold wind or cold water according to user's demand.
The utility model provides a technical scheme be, an evaporation cooling's two-stage precooling water-cooling air conditioning unit, including air intake and the supply-air outlet that sets up respectively on the relative both sides wall of casing, in the casing, from the air intake to the supply-air outlet set gradually disconnect-type heat pipe exchanger, ripple runner fork flow formula dew point indirect evaporative cooler and direct evaporative cooler. The separated heat pipe heat exchanger consists of a separated heat pipe evaporation end and a separated heat pipe condensation end, the direct evaporation cooler is divided into a lower filling section and an upper filling section, the air inlet, the separated heat pipe evaporation end, the corrugated runner cross-flow type dew point indirect evaporation cooler, the lower filling section of the direct evaporation cooler and the air supply outlet are positioned in the same horizontal channel, and the separated heat pipe condensation end is arranged on the upper part of the corrugated runner cross-flow type dew point indirect evaporation cooler.
The utility model is also characterized in that,
in the horizontal channel, the inner side of the air inlet is provided with a filter, and the inner side of the air supply outlet is provided with an air feeder.
The structure of disconnect-type heat pipe condensation end includes heat pipe, breakwater a and the exhaust fan a that sets gradually from down up, and it has air exit a to open on the casing that exhaust fan a corresponds.
The upper filling section of the direct evaporative cooler is sequentially provided with a filler a, a water distributor b, a water baffle b and an exhaust fan b from bottom to top, and an exhaust outlet b is formed in the position, corresponding to the shell, of the exhaust fan b; the lower filling section of the direct evaporative cooler is sequentially provided with a water tank a, a filler b, a water distributor c and an openable baffle a from bottom to top, and one side of the filler b close to the air supply outlet is provided with an openable baffle b and a water baffle c.
The water distributor b is connected to unit return water.
The water distributor c is connected with the circulating water pump a and the water purifier a in sequence through a pipeline, and the water distributor c is connected with the water tank a.
The water tank a is connected with a water supply pump through a pipeline.
The corrugated runner cross-flow dew point indirect evaporative cooler is sequentially provided with a water tank b, a dew point indirect evaporative cooling core and a water distributor a from bottom to top; the flow channel of the dew point indirect evaporative cooling core is a corrugated flow channel and consists of two parts, wherein one part of the flow channel structure of the dew point indirect evaporative cooling core is horizontally arranged to form a dry channel of the dew point indirect evaporative cooling core, and the other part of the flow channel structure of the dew point indirect evaporative cooling core is vertically arranged to form a wet channel of the dew point indirect evaporative cooling core.
The water distributor a is connected with a circulating water pump b and a water purifier b in sequence through pipelines, and the water distributor a is connected with a water tank b.
The utility model discloses air conditioning unit's beneficial effect is:
(1) the utility model discloses air conditioning unit adopts disconnect-type heat pipe exchanger, the indirect evaporative cooler of dew point to carry out the two-stage precooling to the air inlet, reduces unit air-out and leaving water temperature.
(2) The utility model discloses the runner of air conditioning unit dew point indirect evaporative cooling core adopts the ripple runner, and the heat transfer is reinforceed to disturbance when increasing heat and mass exchange between the medium, and has increased the heat transfer time, makes the heat transfer more abundant.
(3) The utility model discloses air conditioning unit adopts the indirect evaporative cooler exhaust secondary air of dew point to cool down to disconnect-type heat pipe exchanger condensation end, retrieves cold volume of airing exhaust, and increases the heat transfer difference in temperature in hot junction, strengthens heat pipe exchanger's precooling effect.
(4) The utility model discloses the baffle that air conditioning unit adopted and to open and close realizes the switching of preparation cold wind and cold water, makes the unit both can be used for preparing cold wind, can prepare cold water again, satisfies user's multiple demand.
Drawings
Fig. 1 is a schematic structural diagram of the air conditioning unit of the present invention;
FIG. 2 is a schematic structural diagram of a corrugated flow passage cross-flow dew point indirect evaporative cooler core in the air conditioning unit of the present invention;
in the figure, 1, a filter, 2, a separated heat pipe evaporation end, 3, a water baffle a, 4, an exhaust outlet a, 5, an exhaust fan a, 6, a separated heat pipe condensation end, 7, a water distributor a, 8, a corrugated flow channel cross flow type dew point indirect evaporative cooler, 9, an exhaust outlet b, 10, an exhaust fan b.11, a water baffle b, 12, a water distributor b, 13, a filler a, 14, an opening and closing baffle a, 15, a water distributor c, 16, an opening and closing baffle b, 17, a water baffle c, 18, a blower, 19, an air supply outlet, 20, a filler b, 21, a unit shell, 22, a circulating water pump a, 23, a water purifier a, 24, a water tank a, 25, a water supply pump, 26, a water tank b, 27, a water purifier b, 28, a circulating water pump b, 29, an air inlet, 30, a dew point indirect evaporative cooling core dry channel, 31 and a dew point indirect evaporative cooling core wet channel.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model discloses an evaporative cooling's two-stage precooling water-cooled air conditioning unit, including air intake 29 and supply-air outlet 19 that set up respectively on the relative both sides wall of casing, in the casing, from air intake 29 to supply-air outlet 19 set gradually disconnect-type heat pipe exchanger, ripple runner fork stream formula dew point indirect evaporative cooler 8 and direct evaporative cooler.
The separated heat pipe heat exchanger consists of a separated heat pipe evaporation end 2 and a separated heat pipe condensation end 6, the direct evaporative cooler is divided into a lower filling section and an upper filling section, the air inlet 29, the separated heat pipe evaporation end 2, the corrugated runner cross-flow type dew point indirect evaporative cooler 8, the lower filling section of the direct evaporative cooler and the air supply outlet 19 are positioned in the same horizontal channel, and the separated heat pipe condensation end 6 is arranged on the upper part of the corrugated runner cross-flow type dew point indirect evaporative cooler 8.
In the horizontal passage, a filter 1 is arranged inside the air inlet 29, and a blower 18 is arranged inside the air supply outlet 19.
The structure of the separated heat pipe condensation end 6 comprises a heat pipe, a water baffle a3 and an exhaust fan a5 which are sequentially arranged from bottom to top, and an exhaust outlet a4 is formed in a shell corresponding to the exhaust fan a 5.
The upper filling section of the direct evaporative cooler is sequentially provided with a filler a13, a water distributor b12, a water baffle b11 and an exhaust fan b10 from bottom to top, and an exhaust outlet b9 is formed in the position, corresponding to the shell, of the exhaust fan b 10; the lower filling section of the direct evaporative cooler is sequentially provided with a water tank a24, a filling b20, a water distributor c15 and an openable baffle a14 from bottom to top, and one side of the filling b20, which is close to the air supply outlet 19, is provided with an openable baffle b16 and a water baffle c 17.
The water distributor b12 is connected to the unit backwater; the water distributor c15 is connected with a circulating water pump a22 and a water purifier a23 in turn through a pipeline, and the water distributor c15 is connected with a water tank a 24; the water tank a24 is connected to the water supply pump 25 through a pipe.
The corrugated runner cross-flow dew point indirect evaporative cooler 8 is sequentially provided with a water tank b26, a dew point indirect evaporative cooling core and a water distributor a7 from bottom to top; the flow channel of the dew point indirect evaporative cooling core is a corrugated flow channel, and the flow channel is composed of two parts, wherein one part of the flow channel structure of the dew point indirect evaporative cooling core is horizontally arranged to form a dry channel 30 of the dew point indirect evaporative cooling core, and the other part of the flow channel structure of the dew point indirect evaporative cooling core is vertically arranged to form a wet channel 31 of the dew point indirect evaporative cooling core, as shown in fig. 2.
The water distributor a7 is connected with a circulating water pump b28 and a water purifier b27 in turn through a pipeline, and the water distributor a7 is connected with a water tank b 26.
The utility model discloses air conditioning unit's theory of operation:
preparing a cold air system:
an openable baffle a14 is closed, an openable baffle b16 is opened, an exhaust fan b10 does not work, outdoor air enters the unit from an air inlet 29 under the action of an air blower 18, is filtered by a filter 1 and is pre-cooled at a separating heat pipe evaporation end 2 for the first stage, then enters a corrugated runner cross-flow type dew point indirect evaporation cooler 8, at the moment, the pre-cooled air is divided into two strands, one strand of air flows through a dew point indirect evaporation cooling core body dry channel 30 as primary air and is subjected to equal humidity cooling, the other strand of air flows through a secondary air dew point indirect evaporation cooling core body wet channel 31 as a secondary air dew point indirect evaporation cooling core body wet channel 31, enters the wet channel side from a small hole arranged in the channel and performs heat and mass exchange with spray water, the heat of the primary air in the dry channel is taken away through the heat transfer of a pipe wall, the secondary air after taking away the heat is taken away from a separating, the secondary air is sent out from an air outlet a4 through an opening and closing baffle a14 and an exhaust fan a 5; and the primary air after secondary precooling by the corrugated runner cross-flow dew point indirect evaporative cooler 8 is sent to the direct evaporative cooler, and is subjected to heat and mass exchange with circulating water sprayed by the water distributor c15 at the filler a13, and is cooled by approximately equal enthalpy, and then is sent to a user from the air supply outlet 19 under the action of the air feeder 18 through the opened and closed baffle b16 and the water baffle c 17.
The working process of the water system is as follows:
circulating water in a water tank b26 of the corrugated flow passage cross-flow dew point indirect evaporative cooler 8 is uniformly sprayed on a core body of the dew point indirect evaporative cooler by a water distributor a7 through a water purifier b27 under the action of a circulating water pump b28, flows through a wet passage 31 of the dew point indirect evaporative cooling core body, performs heat and mass exchange with secondary air, and then falls back to the water tank b26 to complete circulation.
The water in the water tank a24 of the direct evaporative cooler is uniformly sprayed on the filler a13 by the water distributor c15 under the action of the circulating water pump a22 through the water purifier a23, and after heat and mass exchange with primary air, the water falls back to the water tank a24, so that circulation is completed, and the water supply pump 25 does not work.
The working process of the cold water air preparation system is as follows:
the openable baffle b16 is closed, the openable baffle a14 is opened, the blower 18 does not work, primary air is pre-cooled in two stages by the evaporation end 2 of the separated heat pipe and the corrugated runner cross-flow dew point indirect evaporative cooler 8 and then is sent to the direct evaporative cooler, heat and mass exchange is carried out between the filler a13 and the filler b20 and unit return water sprayed by the water distributor b12, heat of spray water is taken away, and the heat is discharged from the air outlet b9 under the action of the exhaust fan b10 through the water baffle b 11; the working process of the secondary air of the corrugated runner cross-flow dew point indirect evaporative cooler 8 is the same as the cold air preparation process.
The working process of the water system is as follows:
the backwater of the unit is uniformly sprayed on the filler a13 and the filler b20 through the water distributor b12, the backwater and primary air after two-stage precooling are subjected to heat-mass exchange, the temperature is reduced and the backwater falls into the water tank a24, at the moment, the circulating water pump a22 does not work, the water supply pump 25 works, and the prepared cold water is sent to the tail end of a user under the action of the water supply pump 25; the working process of the water system of the corrugated runner cross-flow dew point indirect evaporative cooler is the same as the cold air preparation process.
The operation mode is as follows:
when cold air is produced, whether the circulating water pump a22 and the circulating water pump b28 are started or not can be selected according to the requirements of a user on temperature and humidity, and the circulating water pump a22 is closed, so that the inlet air is only subjected to two-stage equal-humidity cooling; when the circulating water pump b28 is turned off, the inlet air is only cooled approximately in an equal enthalpy mode, the circulating water pump b28 is turned off, the air temperature passing through the evaporation end 2 of the separate heat pipe and the condensation end 6 of the separate heat pipe is the same, and the separate heat pipe does not work.
When cold water is prepared, the circulating water pump b28 is started to reduce the temperature of the wet bulb of the inlet air as much as possible, and cold water with lower temperature is prepared, so that the water quantity can be reduced to the greatest extent under the same requirement of cold supply.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840236.3U CN212657823U (en) | 2020-08-28 | 2020-08-28 | An evaporative cooling two-stage pre-chilled air-conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021840236.3U CN212657823U (en) | 2020-08-28 | 2020-08-28 | An evaporative cooling two-stage pre-chilled air-conditioning unit |
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| Publication Number | Publication Date |
|---|---|
| CN212657823U true CN212657823U (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021840236.3U Expired - Fee Related CN212657823U (en) | 2020-08-28 | 2020-08-28 | An evaporative cooling two-stage pre-chilled air-conditioning unit |
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| Country | Link |
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| CN (1) | CN212657823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050326A (en) * | 2020-08-28 | 2020-12-08 | 西安工程大学 | Air conditioning unit for preparing cold air and cold water based on heat pipe-dew point two-stage precooling |
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2020
- 2020-08-28 CN CN202021840236.3U patent/CN212657823U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050326A (en) * | 2020-08-28 | 2020-12-08 | 西安工程大学 | Air conditioning unit for preparing cold air and cold water based on heat pipe-dew point two-stage precooling |
| CN112050326B (en) * | 2020-08-28 | 2024-06-11 | 西安工程大学 | Air conditioning unit for preparing cold air and cold water based on heat pipe-dew point two-stage precooling |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210305 Termination date: 20210828 |