CN202403358U - Indirect-direct evaporative cooling air conditioning unit - Google Patents

Indirect-direct evaporative cooling air conditioning unit Download PDF

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Publication number
CN202403358U
CN202403358U CN2012200008033U CN201220000803U CN202403358U CN 202403358 U CN202403358 U CN 202403358U CN 2012200008033 U CN2012200008033 U CN 2012200008033U CN 201220000803 U CN201220000803 U CN 201220000803U CN 202403358 U CN202403358 U CN 202403358U
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CN
China
Prior art keywords
water
air
evaporative cooling
direct evaporative
indirect
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Expired - Fee Related
Application number
CN2012200008033U
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Chinese (zh)
Inventor
黄翔
夏青
殷清海
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Xian Polytechnic University
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Xian Polytechnic University
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Priority to CN2012200008033U priority Critical patent/CN202403358U/en
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Publication of CN202403358U publication Critical patent/CN202403358U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses an indirect-direct evaporative cooling air conditioning unit, which is composed of an indirect evaporative cooling coil precooling segment, a direct evaporative cooling segment and a fan segment and comprises a filter, an indirect evaporative cooling coil, a direct evaporative cooler and a water baffle plate, wherein the filter, the indirect evaporative cooling coil, the direct evaporative cooler and the water baffle plate are sequentially arranged in a unit shell body according to an air inlet direction. A secondary air exhaust fan and a primary air exhaust fan are respectively arranged on and under the rear of the water baffle plate, and a water tank is arranged under the filter, the indirect evaporative cooling coil, the direct evaporative cooler and the water baffle plate. A water circulating pump a, a water circulating pump b and a water filter are arranged in the water tank. According to the air conditioning unit, the indirect evaporative cooling segment and the direct evaporative cooling segment are organically combined, so that the structure is simple and compact, the occupied space of the unit is less, and the air conditioning unit is suitable for residential buildings and a few commercial buildings. Moreover, the indirect evaporative cooling segment greatly realizes cold energy recovery, so that the efficiency of the evaporative cooling air conditioning unit is greatly increased.

Description

A kind of Evaporative Cooling Air Conditioning unit indirectly-directly
Technical field
The utility model belongs to the operation of air conditioning systems technical field, relates to a kind of devaporizer of idle call, is specifically related to a kind of Evaporative Cooling Air Conditioning unit indirectly-directly.
Background technology
Because energy shortage and air-conditioning consumes energy increase more so, add that environmental pollution is serious day by day in recent years, people are to the raising of comfortable life property requirement or the like various aspects, press for all that exploitation is energy-conservation, healthy, environmental protection, Eco-power heating air conditioning equipment.
Its limiting temperature of tradition indirect evaporation cooler is the wet-bulb temperature of auxiliary air; At present in practical engineering application; The efficient of indirect evaporation cooler generally has only about 70%; This makes that wind pushing temperature is too high when using indirect evaporation cooler separately, is difficult to satisfy the air conditioning of the requirement realization interior architecture of ventilation state point.
The purpose of the bigger temperature drop of air be should realize, energy-conservation, healthy, environmental protection requirement satisfied simultaneously, and simple in structure, compact, and economic and reliable is the Refrigeration Technique that presses for exploitation at present.
Summary of the invention
The purpose of the utility model provides a kind of Evaporative Cooling Air Conditioning unit indirectly-directly; Apparatus for cooling by indirect evaporation is organically combined with direct evaporation-cooled device; One covering device is had wind pushing temperature is reduced to the function that is lower than outdoor air wet-bulb temperature, compact conformation, connection and reasonable arrangement and heat exchange efficiency are high.
The technical scheme that the utility model adopted is; A kind of Evaporative Cooling Air Conditioning unit indirectly-directly; Form by indirect evaporation cooling coil precooling zone, direct evaporative cooling section and fan section; The filter, indirect evaporation cooling coil, direct evaporative cooler and the water fender that comprise in the machine unit shell, set gradually by the air intake direction; Upper and lower auxiliary air exhaust blower and the primary air pressure fan of being respectively arranged with in water fender rear; The below of filter, indirect evaporation cooling coil, direct evaporative cooler and water fender is provided with water tank, is provided with water circulating pump a, water circulating pump b and water filter in the water tank, and indirect evaporation cooling coil, water circulating pump a, water filter, water tank are formed indirect evaporation cooling coil precooling zone; Described direct evaporative cooler, water circulating pump b, water tank, water fender are formed direct evaporative cooling section, and auxiliary air exhaust blower and primary air pressure fan are formed fan section.
The characteristics of the utility model also are,
Water filter wherein is arranged on the exit of indirect evaporation cooling coil.
Direct evaporative cooler wherein is made up of the water-locator of filler and filler top.
It is cold-producing medium that the utility model air-conditioning unit adopts with water, in a covering device, can realize the air that provides dry-bulb temperature lower than outdoor wet-bulb temperature.This air-conditioning unit promote biglyyer energy-conservation and the energy effectively, comprehensive utilization, its wet bulb efficient can reach more than 100%, and compact conformation, connection and reasonable arrangement.
The utility model air-conditioning unit has following characteristics,
(1) be provided with indirect evaporation cooling coil precooling zone and direct evaporative cooling section, compact conformation, rationally distributed.Outdoor air (auxiliary air) at first carries out precooling to recirculated water in the indirect evaporation cooling coil; Recirculated water cools off another strand outdoor air (intermediate air) simultaneously; And this burst intermediate air is carried out the wet exchange of heat through direct evaporative cooling Duan Shiyu water; Reduced the temperature of recirculated water; Last outdoor air (primary air) is at first cooled off by the part that temperature is minimum in the indirect evaporation cooling coil indirectly, and then further cools off through direct evaporative cooling section, realizes that wind pushing temperature is lower than outdoor air wet-bulb temperature.
(2) the indirect evaporation cooling coil precooling zone in this indirect-direct Evaporative Cooling Air Conditioning unit has been realized the cold recovery of recirculated water, has improved heat exchange efficiency.
(3) adopt the indirect evaporation cooling coil; Outdoor air carries out heat exchange through the interior water of tube wall and pipe; Belong to closed Water System, overcome the Northwest's dust storm, characteristics that dust is big, recirculated water is pollution not; And at indirect evaporation cooling coil water inlet water filter is set, has reduced cold water that direct evaporative cooling section offers adverse effect coil pipe.
(4) air themperature seen off of primary air blower fan (breeze fan) is low, and therefore required air output is little, and the efficiency of having saved blower fan has also been saved unit simultaneously and taken up room.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model air-conditioning unit;
Fig. 2 is the utility model air-conditioning unit course of work sketch map.
Among the figure, 1. filter, 2. indirect evaporation cooling coil, 3. filler, 4. water fender, 5. water circulating pump a, 6. water circulating pump b, 7. water-locator, 8. primary air pressure fan, 9. auxiliary air exhaust blower, 10. water tank, 11. water filters, 12. direct evaporative coolers.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.
Shown in Figure 1 is a kind of embodiment of Evaporative Cooling Air Conditioning unit indirectly-directly that the utility model provides.Comprise indirect evaporation cooling coil precooling zone, the direct evaporative cooling section of the material filling type that drips and fan section; The indirect evaporation cooling coil has constituted indirect section of the first order; The direct evaporative cooling section of the material filling type that drips has constituted direct section of the second level, is a double flash evaporation cooling air-conditioning unit.
Structure comprises in the machine unit shell, set gradually by the air intake direction filter 1, indirect evaporation cooling coil 2, direct evaporative cooler 12 and water fender 4; Upper and lower auxiliary air exhaust blower 9 and the primary air pressure fan 8 of being provided with respectively in water fender 4 rears, direct evaporative cooler 12 is made up of the water-locator 7 of filler 3 and filler 3 tops.The below of filter 1, indirect evaporation cooling coil 2, direct evaporative cooler 12 and water fender 4 is provided with water tank 10; Water circulating pump a5, water circulating pump b6 and water filter 11 are set in the water tank 10, and water filter 11 is arranged on the exit of indirect evaporation cooling coil 2.Indirect evaporation cooling coil 2, water circulating pump a5, water filter 11, water tank 10 are formed indirect evaporation cooling coil precooling zone; Direct evaporative cooler 12, water circulating pump b6, water tank 10, water fender 4 are formed direct evaporative cooling section, and auxiliary air exhaust blower 9 is formed fan section with primary air pressure fan 8.
Through the spray recirculated water of water-locator 7 ejection and outdoor air (primary air) carry out heat wet exchange after; Form the spray recirculated water of water temperature convergence outdoor air (primary air) wet-bulb temperature; Feed in the indirect evaporation cooling coil 2 through water circulating pump a5 and through water filter 11; The minimum part of temperature of lower is at first carried out precooling to outdoor air (primary air) in the indirect evaporation cooling coil 2 then; Further cool off through the minimum bottom of the direct evaporative cooling section of material filling type temperature of dripping then, temperature is lower than outdoor air (primary air) wet-bulb temperature, sends into air-conditioned room by primary air pressure fan 8.
The temperature of indirect evaporation cooling coil 2 internal upper part water is higher than outdoor air (auxiliary air) wet-bulb temperature; But be lower than its dry-bulb temperature, therefore can reclaim, come fore-cooling room's outer air (auxiliary air) this part cold; The direct evaporative cooling section of outdoor air (auxiliary air) entering is carried out damp and hot exchange then; Circulating water temperature reduces, and outdoor air (auxiliary air) temperature raises, and discharges from auxiliary air exhaust blower 9 at last.
The outdoor air (intermediate air) that mid portions pass through in the indirect evaporation cooling coil 2 and temperature are higher than in the indirect evaporation cooling coil 2 bottoms and are lower than the recirculated water that passes through in indirect evaporation cooling coil 2 tops and carry out heat exchange; This moment, indirect evaporation cooling coil 2 interior mid portion circulating water temperatures were lower than the dry-bulb temperature of outdoor air (mid portion) all the time; Can carry out precooling to outdoor air (intermediate air); This part air (intermediate air) carries out the wet exchange of heat through the direct evaporative cooling Duan Houyu spray of the material filling type that drips recirculated water then; Circulating water temperature is further lowered the temperature; Outdoor air (mid portion) temperature raises, and discharges from auxiliary air exhaust blower 9.
As shown in Figure 2; The operation principle of the utility model air-conditioning unit is; Auxiliary air exhaust blower 9 suction chamber outer air (auxiliary air) are carried out precooling to recirculated water in the indirect evaporation cooling coil; Simultaneously another strand outdoor air (intermediate air) is cooled off, and this burst intermediate air is carried out the wet exchange of heat through direct evaporative cooling Duan Shiyu water, reduced the temperature of recirculated water; Outdoor air (auxiliary air) and outdoor air (intermediate air) temperature raise, and discharge from auxiliary air exhaust blower 9.At last; Outdoor air (primary air) is at first cooled off by the part that temperature is minimum in the indirect evaporation cooling coil 2 indirectly; And then further cool off at the minimum position of the direct evaporative cooling section temperature of process; Realize that wind pushing temperature is lower than outdoor air wet-bulb temperature, send into air-conditioned room by primary air pressure fan 8 through water fender 4 backs.In this process; When direct evaporative cooling section spray recirculated water and outdoor air (primary air) carry out heat wet exchange after; The spray circulating water temperature approaches outdoor air wet-bulb temperature; Send in the indirect evaporation cooling coil 2 through water circulating pump 5a; Fore-cooling room's outer air (primary air), outdoor air (intermediate air) and outdoor air (auxiliary air) get into water-locator 7 as the direct spray recirculated waters of evaporative cooling section through water circulating pump 6b at last, and the outdoor air that temperature is lower (auxiliary air) and outdoor air (intermediate air) carry out heat at direct evaporative cooling section top with spray recirculated water and wet and exchange; Spray recirculated water water temperature reduces, so constantly circulation.

Claims (3)

1. Evaporative Cooling Air Conditioning unit indirectly-directly; Form by indirect evaporation cooling coil precooling zone, direct evaporative cooling section and fan section; It is characterized in that; The filter (1), indirect evaporation cooling coil (2), direct evaporative cooler (12) and the water fender (4) that comprise in the machine unit shell, set gradually by the air intake direction; Upper and lower auxiliary air exhaust blower (9) and the primary air pressure fan (8) of being respectively arranged with in water fender (4) rear; The below of said filter (1), indirect evaporation cooling coil (2), direct evaporative cooler (12) and water fender (4) is provided with water tank (10); Be provided with water circulating pump a (5), water circulating pump b (6) and water filter (11) in the water tank (10), described indirect evaporation cooling coil (2), water circulating pump a (5), water filter (11), water tank (10) are formed indirect evaporation cooling coil precooling zone; Described direct evaporative cooler (12), water circulating pump b (6), water tank (10), water fender (4) are formed direct evaporative cooling section, and auxiliary air exhaust blower (9) and primary air pressure fan (8) are formed fan section.
2. according to the described air-conditioning unit of claim 1, it is characterized in that described water filter (11) is arranged on the exit of indirect evaporation cooling coil (2).
3. according to the described air-conditioning unit of claim 1, it is characterized in that described direct evaporative cooler (12) is made up of the water-locator (7) of filler (3) and filler (3) top.
CN2012200008033U 2012-01-04 2012-01-04 Indirect-direct evaporative cooling air conditioning unit Expired - Fee Related CN202403358U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200008033U CN202403358U (en) 2012-01-04 2012-01-04 Indirect-direct evaporative cooling air conditioning unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200008033U CN202403358U (en) 2012-01-04 2012-01-04 Indirect-direct evaporative cooling air conditioning unit

Publications (1)

Publication Number Publication Date
CN202403358U true CN202403358U (en) 2012-08-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307675A (en) * 2013-05-30 2013-09-18 西安工程大学 Press-in energy-saving closed evaporative cooling chiller
CN105042737A (en) * 2015-06-25 2015-11-11 东华大学 Air conditioner device adopting combination of finned tubes and direct evaporation technology
CN110398047A (en) * 2019-07-11 2019-11-01 依米康科技集团股份有限公司 A kind of evaporative cooling system and control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307675A (en) * 2013-05-30 2013-09-18 西安工程大学 Press-in energy-saving closed evaporative cooling chiller
CN103307675B (en) * 2013-05-30 2016-05-25 西安工程大学 Forced energy-conservation enclosed evaporative cooling handpiece Water Chilling Units
CN105042737A (en) * 2015-06-25 2015-11-11 东华大学 Air conditioner device adopting combination of finned tubes and direct evaporation technology
CN105042737B (en) * 2015-06-25 2018-08-03 东华大学 A kind of air conditioner combined with direct evaporation technique using finned tube
CN110398047A (en) * 2019-07-11 2019-11-01 依米康科技集团股份有限公司 A kind of evaporative cooling system and control method

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20120829

Termination date: 20130104