CN202254208U - Direct expansion air conditioning unit with dew-point indirect evaporative cooling air-side economizer - Google Patents
Direct expansion air conditioning unit with dew-point indirect evaporative cooling air-side economizer Download PDFInfo
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- CN202254208U CN202254208U CN2011202910624U CN201120291062U CN202254208U CN 202254208 U CN202254208 U CN 202254208U CN 2011202910624 U CN2011202910624 U CN 2011202910624U CN 201120291062 U CN201120291062 U CN 201120291062U CN 202254208 U CN202254208 U CN 202254208U
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Abstract
The utility model discloses a direct expansion air conditioning unit with a dew-point indirect evaporative cooling air-side economizer. A primary filter, a dew-point plate-type indirect evaporative cooler, a wet film packing direct evaporative cooler, a direct expansion air cooler and a blower are sequentially arranged in a unit shell according to the fresh air inlet direction. The dew-point plate-type indirect evaporative cooler comprises a precooler and a cooler. The direct expansion air cooler consists of an evaporator, a compressor, a condenser and a throttling valve which are sequentially connected. The condenser is arranged at the upper part of the cooler. According to the air conditioning unit, the dew-point indirect evaporative cooling air-side economizer and the direct expansion air cooler are organically combined, the functions of the dew-point indirect evaporative cooling air-side economizer and the direct expansion air cooler are complemented mutually, the leading function of evaporative cooling is sufficiently achieved, and meanwhile, the mechanical refrigeration is effectively utilized, so that the unit is suitable for places with various climates and has the advantages of compact structure, environmental protection, high efficiency and energy saving.
Description
Technical field
The utility model belongs to air conditioner technical field, be specifically related to a kind of by dew point indirectly, direct three grades of air-conditioning units forming of the wind side economizer that constitutes of evaporative cooling and direct expansion formula aerial cooler.
Background technology
The raising current, that Along with people's requires comfort of air conditioner, energy-saving and emission-reduction become a strategic task of China's economy and social development.Wind side economizer is a kind of when the outdoor air condition satisfies certain standard, utilizes indirectly or direct evaporative cooler carries out the air treatment system of part or all of cooling.Environmental protection, efficient, energy-conservation evaporative cooling can deserve to be called a kind of economizer, are combining mechanical refrigeration just can satisfy the air-conditioning requirement of various climatological regions.Can be effectively the exploitation of the air-conditioning unit of the combined type energy-saving economy that system power consumption and peak times of power consumption require electric energy is realized purifying, can effectively be reduced again cooling, efficient operation the time to air, is pressing for of people.
Summary of the invention
The purpose of the utility model is to provide the direct expansion formula air-conditioning that has dew point indirect evaporative cooling air side economizer unit; With dew point plate type indirectly, the wet film filler directly, direct expansion formula aerial cooler makes up in order; Make evaporative cooling wind side economizer cooperate with the mechanical refrigeration function of direct expansion formula aerial cooler; Improved the efficient of air-conditioning unit, satisfied indoor requirement humiture.
First kind of technical scheme that the utility model adopted is; The direct expansion formula air-conditioning unit that has dew point indirect evaporative cooling air side economizer; On the front and back walls of machine unit shell, be respectively arranged with fresh wind port and air outlet; The direction that in the unit shell, gets into by new wind is disposed with roughing efficiency air filter, dew point plate type indirect evaporation cooler, wet film filler direct evaporative cooler, direct expansion formula aerial cooler and pressure fan; Dew point plate type indirect evaporation cooler comprises forecooler and cooler two parts; Be provided with the secondary wind inlet with the corresponding sidewall in dew point plate type indirect evaporation cooler bottom; The top of dew point plate type indirect evaporation cooler is provided with exhaust blower and exhaust outlet, and direct expansion formula aerial cooler is made up of the evaporimeter that is connected successively, compressor, condenser and choke valve, and condenser is arranged on the top of cooler.
The another kind of technical scheme that the utility model adopted is; The direct expansion formula air-conditioning unit that has dew point indirect evaporative cooling air side economizer; On the front and back walls of machine unit shell, be respectively arranged with fresh wind port and air outlet; The direction that in the unit shell, gets into by new wind is disposed with roughing efficiency air filter, dew point plate type indirect evaporation cooler, direct expansion formula aerial cooler, wet film filler direct evaporative cooler and pressure fan; Dew point plate type indirect evaporation cooler comprises forecooler and cooler two parts; Be provided with the secondary wind inlet with the corresponding sidewall in dew point plate type indirect evaporation cooler bottom; The top of dew point plate type indirect evaporation cooler is provided with exhaust blower and exhaust outlet, and direct expansion formula aerial cooler is made up of the evaporimeter that is connected successively, compressor, condenser and choke valve, and condenser is arranged on the top of cooler.
The characteristics of the utility model also are,
The forecooler of dew point plate type indirect evaporation cooler comprises the cistern a of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top, and cistern a is connected with water-locator through pipeline, water circulating pump a.
The cooler of dew point plate type indirect evaporation cooler comprises the cistern b of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top, and cistern b is connected with water-locator through pipeline, water circulating pump b.
Wet film filler direct evaporative cooler comprises the cistern c of filler, filler bottom, the water-locator on filler top, and cistern c is connected with water-locator through pipeline, water circulating pump c.
Compare with the air-conditioning unit of prior art, the air-conditioning unit of the utility model has following characteristics:
1) the evaporative cooling economizer is combined with mechanical refrigeration, not only embodied transpiration-cooled energy conservation characteristic, can satisfy the refrigeration requirement under the various weather conditions again.
2) the dew point plate type indirect evaporation cooling can realize the big temperature difference, and high-efficiency operation, and compact conformation are saved floor space; The formula of direct expansion simultaneously aerial cooler is installed in the air-conditioning unit, directly cools off air, has significantly reduced the area of refrigerating plant room.
3) effectively utilize the air draft of second section (cooling section) low temperature of dew point plate type indirect evaporation cooler, be used for taking away the heat of condenser in the kind of refrigeration cycle of direct expansion formula aerial cooler, realized the ladder utilization of energy,, cut down the consumption of energy through recuperation of heat.
4) through opening the difference in functionality section of this air-conditioning unit, this unit can be realized different air handling processes, satisfies different indoor requirements.High to temperature requirement, the place low to humidity requirement, can open dew point plate type indirectly+directly the economizer formed of evaporative cooling section realize air-treatment; Humidity is also had the place of requirement, and the dew point plate type that can open the evaporative cooling economizer is section and direct expansion formula air cooling section process chamber outer air indirectly.
5) require all than higher place for humiture; Can not meet the demands if open the two-stage air handling process of air-conditioning unit, can outdoor new wind first pass through successively dew point plate type indirect evaporation cooling section and direct expansion formula aerial cooler two inferior clammy but after again by the direct evaporative cooling of wet film filler.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model direct expansion formula air-conditioning unit;
Fig. 2 is the structural representation of the another kind of embodiment of the utility model air-conditioning unit.
Among the figure, 1. fresh wind port, 2. low efficient filter, 3. dew point plate type indirect evaporation cooler, 4. secondary wind inlet, 5. exhaust blower; 6. exhaust outlet, 7. cistern a, 8. water circulating pump a, 9. cistern b, 10. water circulating pump b; 11. wet film filler direct evaporative cooler, 12. cistern c, 13. water circulating pump c, 14. evaporimeters, 15. compressors; 16. motor, 17. condensers, 18. choke valves, 19. pressure fans, 20. air outlets.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.
The direct expansion formula air-conditioning unit of the utility model; The dew point plate type indirect evaporation cooler that employing combines-wet film filler direct evaporative cooler-three grades of air-conditioning units of direct expansion formula aerial cooler; Wet film formula filler is directly transpiration-cooled can be changed with installation site direct expansion formula aerial cooler; According to demands of different, do not need to open simultaneously, be two kinds of concrete structure scheme implementation examples that provide respectively below.
Organization plan shown in Figure 1 is: fresh wind port 1 and air outlet 20 are set respectively on the front and back walls of machine unit shell; The direction that in machine unit shell, gets into by new wind sets gradually roughing efficiency air filter 2, dew point plate type indirect evaporation cooler 3, wet film filler direct evaporative cooler 11, direct expansion formula aerial cooler and pressure fan 19; Dew point plate type indirect evaporation cooler 3 comprises forecooler (first section) and cooler (second section) two parts; With secondary wind inlet 4 is set on the corresponding sidewall in dew point plate type indirect evaporation cooler 3 bottoms; The top of dew point plate type indirect evaporation cooler 3 is provided with exhaust blower 5 and exhaust outlet 6; Direct expansion formula aerial cooler is made up of the evaporimeter that is connected successively 14, compressor 15, condenser 17 and choke valve 18; Condenser 17 is arranged on the top of cooler, and the flow of refrigerant direction is: evaporimeter 14, compressor 15, condenser 17, choke valve 18 return in the evaporimeter 14 at last.
Organization plan shown in Figure 2 is: direct expansion formula aerial cooler is arranged on wet film filler direct evaporative cooler 11 fronts, and other structure is same as shown in Figure 1.
Wherein the forecooler of dew point plate type indirect evaporation cooler 3 comprises the cistern a7 of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top; Cistern a7 is connected with water-locator through pipeline, water circulating pump a8, and cistern a7, water circulating pump a8, low pressure feed pipe and a water circulation system that the pouring nozzle constitutes are first section precooling zones of dew point plate type indirect evaporation cooling; The cooler of dew point plate type indirect evaporation cooler 3 comprises the cistern b9 of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top; Cistern b9 is connected with water-locator through pipeline, water circulating pump b10, and cistern a9, water circulating pump a10, low pressure feed pipe and a water circulation system that the pouring nozzle constitutes are second section cooling sections of dew point plate type indirect evaporation cooling.
Wet film filler direct evaporative cooler 11 comprises the cistern c12 of filler, filler bottom, the water-locator on filler top, and cistern c12 is connected with water-locator through pipeline, water circulating pump c13.
The three grades of dew point plate type indirect evaporation coolers of Evaporative Cooling Air Conditioning units employing of the utility model and the evaporative cooling wind side economizer of a wet film filler direct evaporative cooler composition and direct expansion formula aerial cooler are formed; Second level direct evaporative cooler is the wet film packing section; Utilize water circulating pump c13 through the low pressure feed pipe filler to be dripped pouring to the water in the cistern c12, and carry out the wet exchange of heat at its surface formation very thin moisture film and air.First order dew point indirect evaporative cooler mainly is to utilize secondary wind to carry out precooling (first section) to outdoor new wind; Be sent to the secondary air channel that a pouring nozzle is sprayed onto plate indirect to the water among the cistern a7 through the low pressure feed pipe; Utilize water and secondary wind to take away the sub-load of outdoor new wind; Again the outdoor air after the precooling is delivered to second section (cooler); Be sent to the secondary air channel that a pouring nozzle is sprayed onto plate indirect to the water among the cistern b9 through the low pressure feed pipe, take away a part of outdoor new wind load again.
Roughing efficiency air filter 2 can purify outdoor new wind, and filler can carry out purifying the second time evaporimeter 14 is played the proofing dust and protecting effect air, improves the caloic exchange efficiency of cold-producing medium and air.
In order to improve the heat exchange efficiency of dew point plate type indirect evaporation cooling, a wind after the secondary wind of second section (cooler) of dew point plate type indirect evaporation cooler adopts first section (forecooler) to handle.Shower water in two subchannels makes wind and one in the water of first section (forecooler) getting into two subchannels take away the heat of new wind in second section (cooler) subchannel, to outdoor new air cooling processing.
The course of work of the utility model air-conditioning unit:
Outdoor new wind gets into through fresh wind port 1; After roughing efficiency air filter 2 filters dust; First section (forecooler) through dew point plate type indirect evaporation cooler; Water drenches the nozzle ejection to the water of water from cistern a7 through the low pressure feed pipe by dripping through water circulating pump a8; Water leans on the gravity effect to the secondary channel surface of dirty wetting plate type heat exchanger and form moisture film, and the air along continuous straight runs that is processed vertically carries out heat exchange to wet cooling processing such as air carry out through a subchannel of plate type heat exchanger with it.The air of precooling gets into second section (cooler); After outdoor new wind after the precooling gets into second section (cooler); A part gets into two subchannels; Water drenches nozzle spraying and secondary passage to the water of water from cistern b9 through the low pressure feed pipe by dripping through water circulating pump b10, and takes away outdoor new wind-heat amount once more.Outdoor new wind is through first order air cooling section---dew point plate type indirect evaporation cooler 3; Then get into second level air cooling section---wet film filler direct evaporative cooler 11; Water is delivered to the moisture film that nozzle drips the pouring filling surface and forms uniformity to the water in the cistern c12 through the low pressure feed pipe through low-pressure pump simultaneously; Realization is carried out constant enthalpy cooling processing procedure to air; And filler can also carry out further purified treatment to outdoor new wind, the evaporimeter 14 of protection direct expansion formula aerial cooler.Outdoor new wind through evaporative cooling wind side economizer gets into third level air conditioner unit again---direct expansion formula aerial cooler; Condenser 17 places air draft place of second section (cooler) of dew point plate type indirect evaporation cooling; Make the temperature reduction that becomes the cold-producing medium of HTHP through compressor 15, become the liquid state of low-temp low-pressure again through choke valve 18, get in the evaporimeter 14; Getting into compressor 15 after having absorbed the heat of outdoor new wind; Circulation successively, outdoor new wind through evaporator 14 after by etc. but clammy, at last pass through air outlets 20 air that is processed sent into the room conditioning district by pressure fan 19.
Claims (8)
1. the direct expansion formula air-conditioning unit that has dew point indirect evaporative cooling air side economizer; It is characterized in that; On the front and back walls of machine unit shell, be respectively arranged with fresh wind port (1) and air outlet (20); The direction that in the unit shell, gets into by new wind is disposed with roughing efficiency air filter (2), dew point plate type indirect evaporation cooler (3), wet film filler direct evaporative cooler (11), direct expansion formula aerial cooler and pressure fan (19); Described dew point plate type indirect evaporation cooler (3) comprises forecooler and cooler two parts; Be provided with secondary wind inlet (4) with the corresponding sidewall in said dew point plate type indirect evaporation cooler (3) bottom; The top of said dew point plate type indirect evaporation cooler (3) is provided with exhaust blower (5) and exhaust outlet (6); Described direct expansion formula aerial cooler is made up of the evaporimeter that is connected successively (14), compressor (15), condenser (17) and choke valve (18), and described condenser (17) is arranged on the top of cooler.
2. according to the described direct expansion formula of claim 1 air-conditioning unit; It is characterized in that; The forecooler of said dew point plate type indirect evaporation cooler (3) comprises the cistern a (7) of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top, and cistern a (7) is connected with water-locator through pipeline, water circulating pump a (8).
3. according to the described direct expansion formula of claim 1 air-conditioning unit; It is characterized in that; The cooler of said dew point plate type indirect evaporation cooler (3) comprises the cistern b (9) of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top, and cistern b (9) is connected with water-locator through pipeline, water circulating pump b (10).
4. according to the described direct expansion formula of claim 1 air-conditioning unit; It is characterized in that; Described wet film filler direct evaporative cooler (11) comprises the cistern c (12) of filler, filler bottom, the water-locator on filler top, and cistern c (12) is connected with water-locator through pipeline, water circulating pump c (13).
5. the direct expansion formula air-conditioning unit that has dew point indirect evaporative cooling air side economizer; It is characterized in that; On the front and back walls of machine unit shell, be respectively arranged with fresh wind port (1) and air outlet (20); The direction that in the unit shell, gets into by new wind is disposed with roughing efficiency air filter (2), dew point plate type indirect evaporation cooler (3), direct expansion formula aerial cooler, wet film filler direct evaporative cooler (11) and pressure fan (19); Described dew point plate type indirect evaporation cooler (3) comprises forecooler and cooler two parts; Be provided with secondary wind inlet (4) with the corresponding sidewall in said dew point plate type indirect evaporation cooler (3) bottom; The top of said dew point plate type indirect evaporation cooler (3) is provided with exhaust blower (5) and exhaust outlet (6); Described direct expansion formula aerial cooler is made up of the evaporimeter that is connected successively (14), compressor (15), condenser (17) and choke valve (18), and described condenser (17) is arranged on the top of cooler.
6. according to the described direct expansion formula of claim 5 air-conditioning unit; It is characterized in that; The forecooler of said dew point plate type indirect evaporation cooler (3) comprises the cistern a (7) of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top, and cistern a (7) is connected with water-locator through pipeline, water circulating pump a (8).
7. according to the described direct expansion formula of claim 5 air-conditioning unit; It is characterized in that; The cooler of said dew point plate type indirect evaporation cooler (3) comprises the cistern b (9) of plate type heat exchanger, plate type heat exchanger bottom, the water-locator on plate type heat exchanger top, and cistern b (9) is connected with water-locator through pipeline, water circulating pump b (10).
8. according to the described direct expansion formula of claim 5 air-conditioning unit; It is characterized in that; Described wet film filler direct evaporative cooler (11) comprises the cistern c (12) of filler, filler bottom, the water-locator on filler top, and cistern c (12) is connected with water-locator through pipeline, water circulating pump c (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202910624U CN202254208U (en) | 2011-08-11 | 2011-08-11 | Direct expansion air conditioning unit with dew-point indirect evaporative cooling air-side economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202910624U CN202254208U (en) | 2011-08-11 | 2011-08-11 | Direct expansion air conditioning unit with dew-point indirect evaporative cooling air-side economizer |
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| CN202254208U true CN202254208U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202910624U Expired - Fee Related CN202254208U (en) | 2011-08-11 | 2011-08-11 | Direct expansion air conditioning unit with dew-point indirect evaporative cooling air-side economizer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953988A (en) * | 2014-04-28 | 2014-07-30 | 西安工程大学 | Air conditioning unit combining forced ventilation, pipe type counter-current dew point indirect evaporative cooling and mechanical refrigeration |
| CN106016483A (en) * | 2016-05-24 | 2016-10-12 | 西安工程大学 | Water-cooling mechanical refrigeration-corrugated plate pipe indirect evaporation cooling compound-type window type air conditioner |
| CN106767051A (en) * | 2017-01-14 | 2017-05-31 | 陈祖卫 | Indirect evaporation heat exchanger and its cooling tower |
| CN107044703A (en) * | 2017-05-25 | 2017-08-15 | 无锡市联众控湿节能设备有限公司 | High efficiency composition evaporates cooling air processor group |
| CN108224626A (en) * | 2017-12-19 | 2018-06-29 | 西安工程大学 | A kind of multi-stage, efficient evaporative cooling air conditioning machine group |
| CN108603674A (en) * | 2015-11-05 | 2018-09-28 | 新科劲力私人有限公司 | Multimember air handling system configuration, control and operation |
-
2011
- 2011-08-11 CN CN2011202910624U patent/CN202254208U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953988A (en) * | 2014-04-28 | 2014-07-30 | 西安工程大学 | Air conditioning unit combining forced ventilation, pipe type counter-current dew point indirect evaporative cooling and mechanical refrigeration |
| CN103953988B (en) * | 2014-04-28 | 2017-01-04 | 西安工程大学 | Press-in tubular type adverse current dew point indirect evaporative cooling is combined air conditioning unit with mechanical refrigeration |
| CN108603674A (en) * | 2015-11-05 | 2018-09-28 | 新科劲力私人有限公司 | Multimember air handling system configuration, control and operation |
| CN108603674B (en) * | 2015-11-05 | 2021-04-27 | 新科劲力私人有限公司 | Multi-component air conditioning system configuration, control and operation |
| CN106016483A (en) * | 2016-05-24 | 2016-10-12 | 西安工程大学 | Water-cooling mechanical refrigeration-corrugated plate pipe indirect evaporation cooling compound-type window type air conditioner |
| CN106767051A (en) * | 2017-01-14 | 2017-05-31 | 陈祖卫 | Indirect evaporation heat exchanger and its cooling tower |
| CN106767051B (en) * | 2017-01-14 | 2022-06-10 | 陈祖卫 | Indirect evaporation heat exchanger and cooling tower thereof |
| CN107044703A (en) * | 2017-05-25 | 2017-08-15 | 无锡市联众控湿节能设备有限公司 | High efficiency composition evaporates cooling air processor group |
| CN108224626A (en) * | 2017-12-19 | 2018-06-29 | 西安工程大学 | A kind of multi-stage, efficient evaporative cooling air conditioning machine group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130811 |