CN201028720Y - Two-stage water evaporating and refrigerating air-conditioning unit - Google Patents
Two-stage water evaporating and refrigerating air-conditioning unit Download PDFInfo
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- CN201028720Y CN201028720Y CNU2007201041589U CN200720104158U CN201028720Y CN 201028720 Y CN201028720 Y CN 201028720Y CN U2007201041589 U CNU2007201041589 U CN U2007201041589U CN 200720104158 U CN200720104158 U CN 200720104158U CN 201028720 Y CN201028720 Y CN 201028720Y
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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
The utility model relates to a two-stage water evaporating and cooling indoor air conditioner, belonging to the technical field of air conditioner and mainly including a blower, an evaporating filter layer(4) and a water tank(5) arranged at the bottom of the air conditioner. The utility model is characterized in that: a heat exchanger(1) is arranged above the water tank(5). A first blower(2) and a second blower(3) which are parallel to each other are arranged above the heat exchanger(1). The air lets of the two blowers are respectively connected with two air outlets of the heat exchanger(1); an air duct which has the evaporating filter layer(4) is arranged above the two blowers. The inlet of the air duct is communicated with the outlet of the first blower(2) and the outlet of the air duct is communicated with the outlet(10) for the first wind. The utility model overcomes the disadvantage that the independently used direct evaporating and cooling indoor air conditioner conveys the wind with the temperature no lower than the temperature of the wet ball outdoors and with large relative dampness. The utility model can flexibly select the start of the indirect section or the direct section, according to the actual needs.
Description
Technical field:
Belong to air-conditioning technical field, be applied to closed, open type and semi-open-type environment.Can be applied to public and industrial buildings such as civil buildings and some spinneries such as hotel, office building, food and drink, amusement, gymnasium, cinema.
Background technology:
The common feature of current China room air conditioner is to consume the ozone material as cold-producing medium with freon etc., consumes work done during compression.This causes the destruction to atmospheric environment undoubtedly, and a large amount of wastes of the energy.In this case, as cold-producing medium, the transpiration-cooled room air conditioner that has saved compressor consumption has obtained attention with water.Occurred a spot of this product on the market, but all be in direct transpiration-cooled mode, it is indirect type evaporative cooling that a small part is also arranged.
Direct-type Evaporative Cooling Air Conditioning device can be handled outdoor air near wet-bulb temperature, but simultaneously, the water capacity in the wind pushing air will obviously increase, and relative humidity can reach about 90%.Utilize direct Evaporative Cooling Air Conditioning device to handle air, the temperature of gained air is limited by outdoor air wet-bulb temperature, can not be lower than this temperature value (is outdoor air wet-bulb temperature value, this is the bottleneck problem of direct Evaporative Cooling Air Conditioning device), so direct-type Evaporative Cooling Air Conditioning device can only be used in dry hot area mostly.And the indirect evaporation cooling is air (being called auxiliary air) or the water that utilizes after direct evaporative cooling, by other one air (being called primary air) of heat exchanger cooling.The primary air temperature can descend, yet because it does not contact with water, its water capacity is constant, influences its cooling-down effect.
Direct-type Evaporative Cooling Air Conditioning device is by a typhoon machine, and the spray air channel of evaporation filter course is housed, and water tank and water pump are formed.The evaporative cooling process is incessantly the water in the water tank to be extracted out with water pump, and sprays equably on the evaporation filter course by nozzle, when outdoor air passes through the evaporation filter course, carries out heat exchange with water, is lowered the temperature, filters the back and sent into indoor by blower fan.Indirect type evaporative cooling increases a heat exchanger on the transpiration-cooled basis of direct-type, utilize the empty G﹠W of the lower temperature of direct evaporative cooling acquisition, as the refrigerant of contactless heat exchange, the air in will inlet chamber is cooled by heat exchange.
The utility model content:
The purpose of this utility model provides a kind of twin-stage water Evaporative Cooling Air Conditioning device that the cooling of direct evaporative cooling and indirect evaporation is combined.The evaporative cooling of twin-stage water is that the indirect type air-supply is fed in the direct-type devaporizer once more, makes the wet-bulb temperature of wind pushing air temperature near the indirect type outlet air through direct evaporative cooler, reduces once more on the basis of indirect evaporation cooling.This has just solved the restriction of direct evaporative cooler humidity, and has strengthened its cooling-down effect.Replace existing freon refrigeration device with the twin-stage water evaporation cooling apparatus, the former has the refrigerating efficiency height, and is economical, pollution-free and can improve advantages such as air quality, has application value.
The utility model provides a kind of double-level water evaporation cooled house air conditioner machine, comprise: blower fan, evaporation filter course 4, be positioned at the water tank 5 of air-conditioner bottom, it is characterized in that, it above water tank 5 heat exchanger 1, two primary air fans placed side by side 2 and overfire air fan 3 are positioned at heat exchanger 1 top, and two typhoon machine air inlets link to each other with two air outlets of heat exchanger 1 respectively, it above the two typhoon machines air channel that evaporation filter course 4 is housed, the air channel inlet communicates with the outlet of primary air fan 2, and ducting outlet communicates with a wind outlet 10 of top, air channel.
Heat exchange takes place with the secondary wind of handling through evaporative cooling (being indoor return air) in a wind (being outdoor new wind) in heat exchanger 1.A wind enters primary air fan 2 then, by evaporation filter course 4, is exported in the inlet chamber by a wind at last, and secondary wind then is discharged to outdoor by overfire air fan.
Heat exchanger in the utility model adopts plate type heat exchanger, the heat transfer efficiency height is arranged (because the medium that flows in the plate groups is than low reynolds number Re the time, just can form turbulent flow, and the difficult dirt that generates on the smooth plate, than traditional high 2-4 of shell-and-tube heat exchange efficiency doubly), advantages such as compact conformation, little, energy-conservation, the economy of taking up room, convenient disassembly, and satisfy the requirement of contactless heat exchange in the utility model, so select plate type heat exchanger here for use.
Twin-stage water evaporative cooling cabinet air conditioner and the superiority of using the room air conditioner of direct or indirect type separately:
1. outdoor air can be handled it below wet-bulb temperature, can obtain bigger supply air temperature difference, improve the refrigerating capacity of transpiration-cooled room air conditioner.Having solved the evaporative cooling room air conditioner largely is subjected to outdoor air relative humidity to influence big problem.It is 36 ℃ for example at outdoor air dry-bulb temperature, when wet-bulb temperature is 21.3 ℃, experiment records and adopts twin-stage water Evaporative Cooling Air Conditioning device air outlet air dry-bulb temperature is 18.5 ℃, wet-bulb temperature is 18 ℃, and adopt when direct, the air outlet temperature can not be lower than 21.3 ℃ (they being outdoor air wet-bulb temperature value).
2. use twin-stage water evaporative cooling air-supply, can also select to open section or directly section indirectly flexibly according to actual needs.The below that is positioned at the air inlet of primary air fan 2 is provided with Temperature Humidity Sensor 8, link to each other with indirect section magnetic valve 17, a direct section magnetic valve 18 respectively, according to the value of defining of the humiture of actual set, realize indirect section nozzle 8 and the directly switch control of section nozzle 9 by magnetic valve.Not very high for example in outside air temperature, and when not needing humidification, only need to open the indirect evaporation cooling section and just can satisfy new wind requirement fully, set so when temperature and be lower than 30 ℃, relative humidity is higher than at 70% o'clock only opens indirect section nozzle 8 and realizes the indirect evaporations cooling.
Description of drawings
Fig. 1 the utility model double-level water evaporation cooled house air conditioner machine removes the front view that covers
Among the figure: 1. heat exchanger, 2. primary air fan, 3. overfire air fan, 4. evaporation filter course, 5. water tank, 6. indirect section nozzle, 7. direct section nozzle, 8. Temperature Humidity Sensor, 9. a wind inlet, 10. a wind outlet, 11. secondary wind inlet, the outlet of 12. secondary wind, 13. water pumps, 14, water fender.
Fig. 2 the utility model double-level water evaporation cooled house air conditioner machine removes the right view that covers
Among the figure: 2. primary air fan, 5. water tank, 6. indirect section nozzle, 7. direct section nozzle, 8 Temperature Humidity Sensors, a 10. wind outlet, 11. secondary wind inlet, 13. water pumps, 15. feed pipes, 16. return pipes, 17, section magnetic valve indirectly, 18, direct section magnetic valve.
The specific embodiment:
The operation of twin-stage water evaporative cooling cabinet air conditioner mainly comprises three circulations, i.e. secondary wind (indoor return air) circulation, and a wind (outdoor new wind) circulation and the cold circulation of anhydrating by finishing this three circulations, reach the effect that air-conditioner finally cools.
Secondary wind (being indoor return air), under the effect of overfire air fan 3, secondary wind inlet 11 by air-conditioner enters air-conditioner, when indirect section magnetic valve 17 opened, cooling water in the water tank 5 can pass through feed pipe 15 under the effect of water circulating pump 13, down the wind sprayed equably on the fin of heat exchanger 1 by indirect section nozzle 6 incessantly.At this moment a part of cooling water can evaporate and take away a part of sensible heat of indoor return air, has also taken away a part of heat of heat exchanger fin simultaneously.And a wind (being outdoor new wind) directly enters plate type heat exchanger 1 by a wind inlet 9 under the effect of primary air fan 2, carry out heat exchange with the secondary wind that is evaporated cooling, finally be cooled and enter primary air fan 2, secondary wind is then delivered to secondary wind outlet 12 through water fender 7 backs by overfire air fan 3 and finally is discharged to outdoor.At this moment, when direct section magnetic valve opened, incessantly the cooling water in the water tank 5 is extracted out through water circulating pump 13, and by feed pipe 15, spray equably on evaporation filter course 4 by direct section nozzle 7 at last, a wind that has been pulled away a part of heat blows out from the air port of primary air fan 2, enter evaporation filter course 6, fully carry out exchange heat with water, lowered the temperature again, send into indoor through a wind outlet 10 behind the humidification simultaneously.
In direct evaporative cooling process, the unevaporated cooling water in spray back can got back to earlier in the water pond of indirect evaporation cooling segment by return pipe 16 under the gravity effect.In the indirect evaporation cooling procedure, nearer apart from water tank 5 because of it, unevaporated cooling water in spray back and the backwater from direct evaporative cooling process enter return pipe 15 together directly to get back to water tank 5 recycling under the effect of gravity.
Form in the utility model Figure of description is cabinet type, but the form of twin-stage water Evaporative Cooling Air Conditioning device is not limited to cabinet type, also can be designed to ceiling mounting type as required, principle and critical piece are with cabinet type identical, but because there are different requirements in the installation room different with type of attachment of twin-stage water evaporative cooling ceiling-mounted air conditioner, those skilled in the art need not creative work can flexible, belongs to the utility model scope, no longer describes in detail here.
Claims (2)
1. double-level water evaporation cooled house air conditioner machine, comprise blower fan, evaporation filter course (4), be positioned at the water tank (5) of air-conditioner bottom, it is characterized in that, in water tank (5) top is a heat exchanger (1), two primary air fans placed side by side (2) and overfire air fan (3) are positioned at heat exchanger (1) top, and two typhoon machine air inlets link to each other with two air outlets of heat exchanger (1) respectively, it above the two typhoon machines air channel that evaporation filter course (4) is housed, the air channel inlet communicates with the outlet of primary air fan (2), and ducting outlet communicates with a wind outlet (10) of top, air channel.
2. double-level water evaporation cooled house air conditioner machine according to claim 1 is characterized in that, heat exchanger (1) adopts plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201041589U CN201028720Y (en) | 2007-04-06 | 2007-04-06 | Two-stage water evaporating and refrigerating air-conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201041589U CN201028720Y (en) | 2007-04-06 | 2007-04-06 | Two-stage water evaporating and refrigerating air-conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028720Y true CN201028720Y (en) | 2008-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201041589U Expired - Lifetime CN201028720Y (en) | 2007-04-06 | 2007-04-06 | Two-stage water evaporating and refrigerating air-conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028720Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453915C (en) * | 2007-04-06 | 2009-01-21 | 北京工业大学 | Double-level water evaporation cooled house air conditioner machine |
-
2007
- 2007-04-06 CN CNU2007201041589U patent/CN201028720Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453915C (en) * | 2007-04-06 | 2009-01-21 | 北京工业大学 | Double-level water evaporation cooled house air conditioner machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |