CN105003986A - Solar energy and desiccant wheel combined type indirect evaporative cooling heat recovery fresh air processor - Google Patents

Solar energy and desiccant wheel combined type indirect evaporative cooling heat recovery fresh air processor Download PDF

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Publication number
CN105003986A
CN105003986A CN201510469092.2A CN201510469092A CN105003986A CN 105003986 A CN105003986 A CN 105003986A CN 201510469092 A CN201510469092 A CN 201510469092A CN 105003986 A CN105003986 A CN 105003986A
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air
water
heat
desiccant wheel
solar energy
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CN201510469092.2A
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CN105003986B (en
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吕智
丁力行
丁迩
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GUANGDONG HEAD-POWER AIR-CONDITIONING Co.,Ltd.
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吕智
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/001Compression cycle type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56Heat recovery units

Abstract

The invention discloses a solar energy and desiccant wheel combined type indirect evaporative cooling heat recovery fresh air processor, and belongs to the technical field of air conditioning equipment and energy saving. The processor unit is composed of a solar heat collection and exchange system, a desiccant wheel, an indirect evaporative condenser, a surface heat exchanger, an exhaust fan and a fresh air machine. The characteristic that the sunshine duration is long in South China is utilized, solar energy is used for providing regenerative heat for the desiccant wheel, and meanwhile heat of indoor exhaust air is recycled. After the processor is combined with an indirect evaporative cooling technology, fresh air is cooled and dehumidified, and no extra cold source needs to be provided, so that fresh air processing energy consumption is reduced, and indoor air quality is improved. The solar energy and desiccant wheel combined type indirect evaporative cooling heat recovery fresh air processor is simple and reasonable in structure and stable to operate. The application limitations of the evaporative cooling technology in South China are avoided, and the defects in the prior art are overcome.

Description

Solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor
Technical field
The invention belongs to air-conditioning equipment and field of energy-saving technology, relate to a kind of vaporation-type heat recovery fresh air air-conditioning, particularly a kind of solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor.
Background technology
Evaporation cooling technique, as the efficient cooling technology of one, is utilize the highest mode of dry air potential energy utilization rate at present, and it utilizes dry air to be in undersaturated condition externally do work and freeze.Evaporation cooling technique is gone ahead of the rest in NORTHWEST CHINA portion, has carried out application to a certain degree.Be high-temperature high humidity climate in south China most area summer being main, be do not possess evaporation cooling technique application conditions outwardly, but south China Area during Summer is sufficient for sunshine.China's air conditioning in residential buildings system mostly adopts new return air mixed mode, owing to there being certain proportion resh air requirement, the harmful substance of indoor being diluted simultaneously and discharges outdoor, contributes to improving indoor air quality.But new wind makes Fresh air handing energy consumption greatly increase, and air draft wastes a large amount of cold.The cold how utilizing southern area climatic characteristic and air draft to waste in a large number proposes new problem for we carry out power-saving technology application.
This solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, utilize the cold of southern area sufficient climatic characteristic at sunshine in summer and recovery air draft waste just, by solid dehumidifying and indirect evaporative cooling technology, cool-down dehumidification process is carried out to new wind.Desiccant wheel is the wheel surface being attached to aglite making with the hygroscopic material such as silica gel, molecular sieve, constant enthalpy dehumidifying is carried out to hot and humid new wind, the runner having adsorbed new wind large quantity of moisture is irreversible loss, must regenerate, at this time we utilize the heat of solar absorption to regenerate desiccant wheel; Indirect evaporating-cooling mainly make use of indoor low temperature low humidity air draft (i.e. auxiliary air, its dry-bulb temperature 27 DEG C, wet-bulb temperature 19.5 DEG C) directly to contact with water and carry out evaporative cooling and absorb the new wind (primary air after runner process, do not contact with water) heat, the wet cooling such as to carry out, due to the wet-bulb temperature 19.5 DEG C that evaporating temperature is indoor low temperature low humidity air draft (auxiliary air), this just makes leaving air temp be tending towards wet-bulb temperature 19.5 DEG C, and this is just than any one plate fin type heat exchanger efficiency height 35-45%; This solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, make use of inexhaustible solar energy for desiccant wheel provides reactivation heat, reclaim the energy of indoor exhaust wind simultaneously, cool-down dehumidification process is carried out to new wind and without the need to providing other low-temperature receiver, reduce Fresh air handing energy consumption, improve indoor air quality; Because equipment only has Fan and pump to consume energy, Energy Efficiency Ratio improves greatly, and low taste thermal source is utilized, and contributes to environmental situation that is energy-conservation and that improve because coal-fired, fuel oil cause.
Summary of the invention
The object of the invention aim to provide a kind of simple and reasonable, operate steadily, solar energy that energy consumption is low and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, overcome the limitation that evaporation cooling technique is applied in South China, and improve weak point of the prior art.
The solar energy designed by this object and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, become with Fresh air handling units by solar energy heating heat-exchange system, desiccant wheel, surface-type heat exchanger, indirect evaporation type condenser, exhaust blower; In figure, solid line represents new wind, and dotted line represents air draft.
Described solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, it is characterized in that described solar thermal collector one end delivery port is connected by water pipe with hot water heat exchanger one end water inlet, water pipe there is a heat-exchanger pump, solar thermal collector other end water inlet is connected by water pipe with hot water heat exchanger other end delivery port, water pipe there is a dynamoelectric water valve a, between them, form a hot water circulation loop.
Described solar thermal collector is open without sunshade place in outdoor, is beneficial to absorb photovoltaic heat; After hot water heat exchanger is in unit upper strata air draft entrance air draft air-valve.
Described solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, be divided into upper and lower two passages, top is air exhaust passage, and entrance has air draft air-valve; Bottom is new wind passage, and entrance has new wind air-valve.
Described desiccant wheel is divided into dehumidifying part and regenerating section, and dehumidifying part is after the new wind air-valve of unit bottom new wind feeder connection, and regenerating section is after the air exhaust passage hot water heat exchanger of unit top.
Described indirect evaporation type condenser to be in the new wind passage of unit lower floor after desiccant wheel dehumidification portion is divided.
Described indirect evaporation type condenser has two gas channels, from bottom to top be secondary air channel, horizontal gas flow is First air passage; First air is the new wind after by desiccant wheel dehumidifying part, and Secondary Air is another burst of indoor exhaust wind; First air does not directly contact with shower water, and Secondary Air and shower water directly contact and carry out caloic and exchange and absorb First air heat.
Described indirect evaporation heat-exchanging component is from top to bottom Secondary Air air draft air-valve respectively, water fender, water-distributing device, and plate type indirect evaporation heat exchanger (but be not limited to board-like, also comprise bundled tube, heat pipe-type etc.); Also have header tank below indirect evaporation heat-exchanging component, header tank is connected with water-distributing device by water pipe, and water pipe has water circulating pump; Also have Secondary Air (indoor exhaust wind) air intake passage between indirect evaporation heat-exchanging component and header tank, Secondary Air air intake entrance is positioned at the indirect evaporative condenser left and right sides of unit lower floor new wind passage simultaneously.
Described indirect evaporation type condenser Secondary Air and shower water sequentially pass through water fender and Secondary Air air draft air-valve after directly contacting and carrying out caloic exchange again, with unit upper strata after the air draft of desiccant wheel regenerating section mixes by outside exhaust blower discharge chamber; Exhaust blower is positioned at unit wind exhausting outlet place.
Described surface-type heat exchanger is between indirect evaporation type condenser and new blower fan; New blower fan is positioned at new wind exit.
The pipe inlet of described surface-type heat exchanger is threeway, and dynamoelectric water valve c of leading up to is connected to central air-conditioning freezing water feed pipe, and another road is connected to the heat-exchanger pump outlet of solar energy heating heat-exchange system; The pipe outlet of surface-type heat exchanger is also threeway, and dynamoelectric water valve d of leading up to is connected to central air-conditioning freezing water return pipe, and dynamoelectric water valve b of separately leading up to is connected between solar energy heating heat-exchange system dynamoelectric water valve a and solar heat-collection plate water inlet.
The new wind in hot and humid outdoor is through desiccant wheel, and rotary wheel dehumidifying part carries out constant enthalpy dehumidifying to new wind, and the runner having adsorbed new wind large quantity of moisture is irreversible loss, must regenerate; Simultaneously, outdoor solar heat-collection plate absorbs a large amount of photovoltaic heat, by heat-exchanger pump, hot water is constantly flowed to hot water heat exchanger, hot water temperature can reach 60-80o, the air draft of part indoor low temperature low humidity becomes the regeneration air of high temperature low humidity after hot water heat exchanger heating, regenerates the runner adsorbing new wind large quantity of moisture; New wind after rotary wheel dehumidifying is not directly contacted with recirculated water by indirect evaporation type condenser horizontal channel as First air; Simultaneously, the air draft of another part indoor low temperature low humidity enters indirect evaporation type condenser as Secondary Air from unit both sides air draft entrance, directly contact with recirculated water and carry out caloic exchange, after absorbing First air heat, with runner is regenerated after hot and humid air draft mix after by outside exhaust blower discharge chamber; First air to after the wet coolings such as it carries out, then by surface-type heat exchanger, is sent into indoor by indirect evaporation type condenser by new blower fan; The effect of surface-type heat exchanger does not have sunlight and humiture carries out wetting except temperature drop to new wind higher than passing into chilled water when setting value in summer, and unit normally runs and need not pass into chilled water at ordinary times; Surface-type heat exchanger passed into solar heat-collection plate and absorbed the hot water of solar energy heating and carry out hyperthermic treatment to new wind winter.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention operation principle schematic diagram.
Fig. 2 is another embodiment of the present invention operation principle schematic diagram.
In figure, 1 is solar thermal collector, and 2 is hot water heat exchanger, and 3 is heat-exchanger pump, 4 is desiccant wheel, and 5 is exhaust valve, and 6 is new air-valve, and 7 is water circulating pump, 8 is Secondary Air air draft air-valve, and 9 is water fender, and 10 is exhaust blower, and 11 is new blower fan, 12 is surface-type heat exchanger, and 13 is plate type indirect evaporation heat exchanger, and 14 is water-distributing device, 15 is header tank, and 16 is Secondary Air air intake entrance, and 17 is dynamoelectric water valve a, 18 is dynamoelectric water valve b, and 19 is dynamoelectric water valve c, and 20 is dynamoelectric water valve d.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1, this solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, be made up of solar energy heating heat-exchange system, desiccant wheel 4, surface-type heat exchanger 12, indirect evaporation type condenser, exhaust blower 10 and new blower fan 11; In figure, solid line represents new general mood stream, and dotted line represents air draft air-flow.
Solar energy heating heat-exchange system comprises solar thermal collector 1, hot water heat exchanger 2, heat-exchanger pump 3; Solar thermal collector 1 one end delivery port is connected by water pipe with hot water heat exchanger 2 one end water inlet, water pipe there is a heat-exchanger pump 3, solar thermal collector 1 other end water inlet is connected by water pipe with hot water heat exchanger 2 other end delivery port, and they form a hot water circulation loop; Solar thermal collector 1 is open without sunshade place in outdoor, is beneficial to absorb solar energy; After hot water heat exchanger 2 is in unit air draft entrance exhaust valve 5, exhaust valve 5 can regulate manually or automatically to air draft air quantity.
Desiccant wheel 4 is divided into dehumidifying part and regenerating section, and dehumidifying part is new wind passage in unit bottom, and regenerating section is at unit top air exhaust passage; The regenerating section of desiccant wheel 4 is after unit top air exhaust passage hot water heat exchanger 2, and dehumidifying part is after the new air-valve 6 of unit bottom new wind feeder connection, and new air-valve 6 can regulate manually or automatically to new wind air quantity.
Indirect evaporation type condenser to be in the new wind passage of unit lower floor after desiccant wheel 4.
Indirect evaporation type condenser has two gas channels, from bottom to top be secondary air channel, horizontal gas flow is First air passage; First air is the new wind after by desiccant wheel 4 dehumidifying part, and Secondary Air is another burst of indoor exhaust wind; First air does not directly contact with shower water, and Secondary Air and shower water directly contact and carry out caloic and exchange and absorb First air heat.
Indirect evaporation type condenser comprises indirect evaporation heat-exchanging component, header tank 15, water circulating pump 7.
Indirect evaporation heat-exchanging component is from top to bottom Secondary Air air draft air-valve 8 respectively, water fender 9, water-distributing device 14, plate type indirect evaporation heat exchanger 13(but be not limited to board-like, also comprises bundled tube, heat pipe-type etc.).
Also have header tank 15 below indirect evaporation heat-exchanging component, header tank 15 is connected with water-distributing device 14 by water pipe, water pipe has water circulating pump 7.
See Fig. 2, also have Secondary Air (indoor exhaust wind) air intake passage between indirect evaporation heat-exchanging component and header tank 15, Secondary Air air intake entrance 16 is positioned at the bottom, the left and right sides of the corresponding indirect evaporation type condenser locations of unit lower floor.
Secondary Air air draft and shower water sequentially pass through water fender 9 and Secondary Air air draft air-valve 8 again after directly contacting and carrying out caloic exchange, with unit upper strata after the hot and humid air draft of desiccant wheel regenerating section mixes by outside exhaust blower 10 discharge chamber, Secondary Air air draft air-valve 8 can regulate manually or automatically to Secondary Air air draft air quantity; Exhaust blower 10 is positioned at unit wind exhausting outlet place.
Surface-type heat exchanger 12 is between indirect evaporation type condenser and new blower fan 11, and new blower fan 11 is positioned at new wind exit.
The pipe inlet of surface-type heat exchanger 12 is threeway, and dynamoelectric water valve c19 of leading up to is connected to central air-conditioning freezing water feed pipe, and the heat-exchanger pump 3 that another road is connected to solar energy heating heat-exchange system exports; The pipe outlet of surface-type heat exchanger 12 is also threeway, and dynamoelectric water valve d20 of leading up to is connected to central air-conditioning freezing water return pipe, and dynamoelectric water valve b18 of separately leading up to is connected between solar energy heating heat-exchange system dynamoelectric water valve a17 and solar heat-collection plate water inlet.
Below the present invention be described in detail, the above, be only one of the present invention preferred embodiment, when not limiting the scope of the present invention, namely allly does impartial change according to the application's scope and modify, all must belong within covering scope of the present invention.
Its course of work is as follows:
As described in Figure 1, summer, outdoor new wind to enter after the new wind passage of unit first through the dehumidifying part of desiccant wheel 4, carries out constant enthalpy dehumidifying, adsorbed the runner slow circumvolve of new wind large quantity of moisture to unit upper strata air exhaust passage to new wind; Simultaneously, solar heat-collection plate 1 absorbs solar heat, by heat-exchanger pump 3, hot water is constantly flowed to hot water heat exchanger 2, at this moment dynamoelectric water valve 18, dynamoelectric water valve 19, dynamoelectric water valve 20 are closed, dynamoelectric water valve 17 leads to, hot water temperature can reach 60-80o, the air draft of part indoor low temperature low humidity becomes the air of high temperature low humidity after hot water heat exchanger heating, regenerates the runner adsorbing new wind large quantity of moisture; New wind after rotary wheel dehumidifying is not directly contacted with recirculated water by indirect evaporation type condenser as First air; Simultaneously, the air draft of another part indoor low temperature low humidity enters indirect evaporation type condenser as Secondary Air from other two air draft entrances 16, directly contact with recirculated water and carry out caloic exchange, after absorbing First air heat, sequentially pass through water fender 9 and Secondary Air air draft air-valve 8, with runner is regenerated after hot and humid air draft mix after by outside exhaust blower discharge chamber; First air to after the wet coolings such as it carries out, then by surface-type heat exchanger 12, sends into indoor by new blower fan 11 by indirect evaporation type condenser; The effect of surface-type heat exchanger 12 passes into chilled water to carry out reducing temperature and humidity when summer does not have sunlight to new wind, and at this moment dynamoelectric water valve a17, dynamoelectric water valve b18 close, and dynamoelectric water valve c19, dynamoelectric water valve d20 are logical; Passing into solar heat-collection plate 1 heat hot water winter carries hot water to carry out hyperthermic treatment to new wind by heat-exchanger pump 3, and at this moment dynamoelectric water valve a17, dynamoelectric water valve c19, dynamoelectric water valve d20 close, and dynamoelectric water valve b18 leads to.

Claims (9)

1. solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, is made up of solar energy heating heat-exchange system, desiccant wheel 4, surface-type heat exchanger 12, indirect evaporation type condenser, exhaust blower 10 and new blower fan 11; Solar energy heating heat-exchange system comprises solar thermal collector 1, hot water heat exchanger 2, heat-exchanger pump 3; Desiccant wheel 4 is divided into dehumidifying part and regenerating section; Indirect evaporation type condenser comprises indirect evaporation heat-exchanging component, header tank 15, water circulating pump 7; Surface-type heat exchanger 12 is between indirect evaporation type condenser and new blower fan 11.
2. according to claim 1solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, is characterized in that described solar thermal collector 1 one end delivery port is connected by water pipe with hot water heat exchanger 2 one end water inlet, water pipe have a heat-exchanger pump 3; Solar thermal collector 1 other end water inlet is connected by water pipe with hot water heat exchanger 2 one end delivery port, water pipe has a dynamoelectric water valve a17, and they form a hot water circulation loop; Solar thermal collector 1 is open in outdoor absorbs photovoltaic heat without sunshade place; After hot water heat exchanger 2 is in unit air draft entrance air-valve 5, air-valve 5 can regulate manually or automatically to air draft air quantity.
3. according to claim 1solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, after it is characterized in that the regenerating section of described desiccant wheel 4 is in unit top air exhaust passage hot water heat exchanger 2, after dehumidification portion is divided and is in unit bottom new wind feeder connection air-valve 6, air-valve 6 can regulate manually or automatically to new wind air quantity.
4. according to claim 1solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, it is characterized in that described indirect evaporation heat-exchanging component is from top to bottom Secondary Air air draft air-valve 8 respectively, water fender 9, water-distributing device 14, plate type indirect evaporation heat exchanger 13(but be not limited to board-like, also comprise bundled tube, heat pipe-type etc.); Also have header tank 15 below indirect evaporation heat-exchanging component, header tank 15 is connected with water-distributing device 14 by water pipe, water pipe has water circulating pump 7.
5. according to claim 1solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, is characterized in that described indirect evaporation type condenser to be in the new wind passage of unit lower floor after desiccant wheel dehumidification portion is divided.
6. according to claim 5solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, it is characterized in that described indirect evaporation type condenser has two gas channels, from bottom to top be Secondary Air (another burst of indoor exhaust wind) passage, horizontal gas flow is First air (new wind) passage; First air does not directly contact with shower water, and Secondary Air and shower water directly contact and carry out caloic exchange.
7. according to claim 5solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, it is characterized in that described indirect evaporation type condenser Secondary Air air intake entrance 16 is positioned at the left and right sides of unit lower floor new wind passage indirect evaporation type condenser locations, Secondary Air and shower water sequentially pass through water fender 9 and air draft air-valve 8 after directly contacting and carrying out caloic exchange again, with unit upper strata after the air draft of desiccant wheel regenerating section mixes by outside exhaust blower 10 discharge chamber, air-valve 8 can regulate manually or automatically to Secondary Air air draft air quantity; Exhaust blower 10 is positioned at unit wind exhausting outlet place.
8. according to claim 1solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, is characterized in that described surface-type heat exchanger 12 is between indirect evaporation type condenser and new blower fan 11; New blower fan 11 is positioned at new wind exit.
9. according to claim 8solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor, it is characterized in that the pipe inlet of described surface-type heat exchanger 12 is threeway, dynamoelectric water valve c19 of leading up to is connected to central air-conditioning freezing water feed pipe, and the heat-exchanger pump 3 that another road is connected to solar energy heating heat-exchange system exports; The pipe outlet of surface-type heat exchanger 12 is also threeway, and dynamoelectric water valve d20 of leading up to is connected to central air-conditioning freezing water return pipe, and dynamoelectric water valve b18 of separately leading up to is connected between solar energy heating heat-exchange system dynamoelectric water valve a17 and solar heat-collection plate water inlet.
CN201510469092.2A 2015-08-04 2015-08-04 Solar energy and desiccant wheel combined type indirect evaporating-cooling heat recovery fresh air processor Active CN105003986B (en)

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CN203753149U (en) * 2014-04-01 2014-08-06 西安工程大学 Indirect evaporative cooling and refrigerant direct expansion type ventilating and air conditioning system for metro
CN203907824U (en) * 2014-06-27 2014-10-29 西安工程大学 Air-conditioning unit combining solar energy, rotary dehumidification and evaporative cooling
CN205014522U (en) * 2015-08-04 2016-02-03 吕智 Solar energy and indirect evaporation cooling heat recovery fresh air processing machine of dehumidification runner combined type

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