CN203413780U - Heat recovery air conditioning unit for use in cold areas - Google Patents

Heat recovery air conditioning unit for use in cold areas Download PDF

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Publication number
CN203413780U
CN203413780U CN201320306103.1U CN201320306103U CN203413780U CN 203413780 U CN203413780 U CN 203413780U CN 201320306103 U CN201320306103 U CN 201320306103U CN 203413780 U CN203413780 U CN 203413780U
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CN
China
Prior art keywords
air
valve
heat recovery
heat
outlet
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Expired - Fee Related
Application number
CN201320306103.1U
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Chinese (zh)
Inventor
徐亮
杨长武
刘长江
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WUHAN GAOLING ENVIRONMENT SCIENCE & TECHNOLOGY Co Ltd
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WUHAN GAOLING ENVIRONMENT SCIENCE & TECHNOLOGY Co Ltd
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Priority to CN201320306103.1U priority Critical patent/CN203413780U/en
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Publication of CN203413780U publication Critical patent/CN203413780U/en
Anticipated expiration legal-status Critical
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    • 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
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Central Air Conditioning (AREA)

Abstract

The utility model relates to a heat recovery air conditioning unit for use in cold areas. The heat recovery air conditioning unit comprises a fresh air valve, a heat recovery device, a surface cooling heater, a humidifier and a blower which are connected in sequence, wherein the blower is used for blowing air into an air conditioning environment; the air outlet of the air conditioning environment is connected with the inlet of an exhaust fan; the outlet of the exhaust fan is connected with the heat energy recovery inlet of the heat recovery device; heat energy recovered by the heat recovery device is exhausted through an exhaust valve; a water-proof mixed segment is formed between the fresh air valve and the heat recovery device; the air outlet of the air conditioning environment is connected with the inlet of an air return machine; the outlet of the air return machine is connected with the inlet of the water-proof mixed segment; an air return valve is arranged between the air return machine and the water-proof mixed segment. The heat recovery air conditioning unit has the beneficial effects that exhausted residual heat can be recovered fully during running of the heat recovery air conditioning unit in cold areas, so that the system running efficiency is increased, and the system energy consumption is lowered.

Description

A kind of cold district recovery type heat air-conditioning unit
Technical field
The utility model relates to air-conditioning technique field, particularly relates to a kind of cold district recovery type heat air-conditioning unit.
Background technology
Along with the power-saving technology development of filed of air conditioning, in ventilation and air conditioning, use heat recovery technology significantly to reduce the energy consumption of air handling system.
The city extreme minimum temperature in the whole nation approximately 35% is lower than-20 ℃, and approximately 25% the outdoor calculating dry-bulb temperature of city winter air-conditioning is lower than-15 ℃.These regional air conditioning areas and inner air and outer air enthalpy difference are very large, and air-conditioning system adopts heat recovery technology can greatly improve running efficiency of system, reduces system energy consumption.
But it is larger that the application of heat recovery technology is subject to environmental limit, especially at cold district, during use in winter heat regenerator, can cause heat regenerator frosting or freeze, system cannot normally be moved.
Existing air handling system or the apparatus of air conditioning all adopt fresh air preheating system to carry out preheating to the new wind of low temperature, to prevent the freeze injury of equipment frosting or heat exchanger.Such system does not make full use of indoor-outdoor air enthalpy difference and carries out waste heat recovery, has consumed a large amount of energy for fresh air preheating.
For some special application scenarios, heat production as a large amount of in mine, hydrometallurgy, Treatment of Metal Surface etc. and produce wet occasion, use in winter ventilates to eliminate waste heat and remainingly must heat new wind when wet, to prevent producing a large amount of condensate water or local freeze injury in air conditioner surroundings, new wind heating energy consumption is now also very huge.
Utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of cold district recovery type heat air-conditioning unit, and it can fully reclaim the waste heat of discharge when cold district moves, and improves running efficiency of system, reduces system energy consumption.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of cold district recovery type heat air-conditioning unit, comprise the new air-valve connecting successively, heat regenerator, show cold heater, humidifier, pressure fan, pressure fan is blown to air conditioner surroundings, the air outlet of air conditioner surroundings is connected with exhaust blower entrance, the outlet of exhaust blower is connected with heat regenerator energy recovery entrance, heat regenerator is discharged by exhaust valve after reclaiming heat energy, between new air-valve and thermal energy recoverer, be provided with waterproof mixing section, the air outlet of air conditioner surroundings is connected with the entrance of return fan, the outlet of return fan is connected with the entrance of waterproof mixing section, between return fan and waterproof mixing section, be provided with air returning valve.
Press such scheme, described exhaust valve, air returning valve and or new air-valve be proportion expression air-valve.
Press such scheme, described proportion expression air-valve is automatically controlled proportion expression air-valve.
The beneficial effects of the utility model are:
Because the hot blast that air conditioner surroundings is discharged is drained into waterproof mixing section by return fan, thereby new wind is heated, avoided the frosting on equipment of the new wind of low temperature, even icing, also avoid new wind to enter heat regenerator and produced water or ice before, thus damage equipment, simultaneously, because hot blast mixes with new wind, promoted the temperature of new wind, reduced the energy consumption of showing cold heater.The utility model has solved in cold district winter ventilation and air-conditioning process pointedly, for the energy consumption rising problem that too low new wind heating causes to temperature.Effectively reduce above-mentioned operating mode heating ventilation and air-conditioning operation energy consumption.Especially reduced and had the ventilation of a large amount of waste heats and remaining wet situation energy consumption.By to measurement and calculating new, return air state, automatically regulate new return air ratio, make mixed wind all the time in suitable state point, to greatest extent the heat of backheat air draft.Unit can high efficient and reliable be moved under various ambient conditions.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
New air-valve 1, air returning valve 3 are connected with the entrance of waterproof mixing section 2 respectively, the outlet of waterproof mixing section 2 is air-air type heat regenerator with heat regenerator 4(the present embodiment heat regenerator) bringing-up section (S section) entrance be connected, the bringing-up section outlet of heat regenerator 4 is connected with the entrance of the cold heater 5 of table, the outlet of showing cold heater 5 is connected with humidifier 6 entrances, the outlet of humidifier 6 is connected with the entrance of pressure fan 8, and the outlet of pressure fan 8 is connected with the air outlet of air conditioner surroundings 9; The return air inlet of air conditioner surroundings 9 is connected with return fan 7 entrances, and the outlet of return fan 7 is connected with air returning valve 3; The exhaust outlet of air conditioner surroundings 9 is connected with the entrance of exhaust blower 10, and the outlet of exhaust blower 10 enters (E section) mouthful and is connected with the heat-recovery section of heat regenerator, and the wind exhausting outlet of heat regenerator is connected with the outlet of exhaust valve 11.
Exhaust valve 11, air returning valve 3, new air-valve 1 are automatically controlled proportion expression air-valve, according to maintaining Air Quality in Air Conditioning Environment, regulate new air-valve 1, the aperture of exhaust valve 11 and new air-valve 1 is basically identical, to guarantee air balance, the aperture of air returning valve 3 has two decisive factors: 1, according to new wind state point, return air state point, mixed state point and new wind Wind Coverage Calculation, draw return air amount; 2, according to resh air requirement with maintain the wet air circulation calculating that requires of air conditioner surroundings heat and calculate; Get person larger in the two.Mixed state point is determined will guarantee unit mixing section frost-free or icing, also will guarantee to reclaim to greatest extent the heat of air draft.Because the temperature of admixture point, lower than the dew-point temperature of return air, can produce in a large number condensate water, therefore mixing section need to be made waterproof form in mixed process.Mixed air, by heat regenerator 4 and air exhaust heat exchange, is realized the function of recuperation of heat.Air after recuperation of heat has pressure fan 8 to send into air conditioner surroundings by follow-up hot wet process.
For the occasion that has a large amount of waste heats, can close in the winter time the cold heater 5 of table, by this unit, can effectively eliminate waste heat, and prevent the dewfall phenomenon that ventilation process produces.
For there being a large amount of remaining wet occasions, can close humidifier 6, by this unit, effectively eliminate remaining wet.
Disclosed is above only the specific embodiment of this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, is not departing under the prerequisite of the utility model principle, and the distortion of making should be considered as belonging to the utility model protection domain.

Claims (3)

1. a cold district recovery type heat air-conditioning unit, comprise the new air-valve connecting successively, heat regenerator, show cold heater, humidifier, pressure fan, pressure fan is blown to air conditioner surroundings, the air outlet of air conditioner surroundings is connected with exhaust blower entrance, it is characterized in that: the outlet of exhaust blower is connected with heat regenerator energy recovery entrance, heat regenerator is discharged by exhaust valve after reclaiming heat energy, between new air-valve and thermal energy recoverer, be provided with waterproof mixing section, the air outlet of air conditioner surroundings is connected with the entrance of return fan, the outlet of return fan is connected with the entrance of waterproof mixing section, between return fan and waterproof mixing section, be provided with air returning valve.
2. cold district recovery type heat air-conditioning unit according to claim 1, is characterized in that: described exhaust valve, air returning valve and or new air-valve be proportion expression air-valve.
3. cold district recovery type heat air-conditioning unit according to claim 2, is characterized in that: described exhaust valve, air returning valve and or new air-valve be proportion expression air-valve.
CN201320306103.1U 2013-05-30 2013-05-30 Heat recovery air conditioning unit for use in cold areas Expired - Fee Related CN203413780U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320306103.1U CN203413780U (en) 2013-05-30 2013-05-30 Heat recovery air conditioning unit for use in cold areas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320306103.1U CN203413780U (en) 2013-05-30 2013-05-30 Heat recovery air conditioning unit for use in cold areas

Publications (1)

Publication Number Publication Date
CN203413780U true CN203413780U (en) 2014-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320306103.1U Expired - Fee Related CN203413780U (en) 2013-05-30 2013-05-30 Heat recovery air conditioning unit for use in cold areas

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CN (1) CN203413780U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214914A (en) * 2013-05-30 2014-12-17 武汉高菱环境科技有限公司 Heat recovery type air conditioning unit in cold region
WO2017193578A1 (en) * 2016-05-12 2017-11-16 上海交通大学 Temperature and humidity weak-relevance control unit type air conditioning system and use method
CN108613337A (en) * 2016-12-09 2018-10-02 陈琛 A kind of fresh air temperature-controlling system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104214914A (en) * 2013-05-30 2014-12-17 武汉高菱环境科技有限公司 Heat recovery type air conditioning unit in cold region
WO2017193578A1 (en) * 2016-05-12 2017-11-16 上海交通大学 Temperature and humidity weak-relevance control unit type air conditioning system and use method
CN108613337A (en) * 2016-12-09 2018-10-02 陈琛 A kind of fresh air temperature-controlling system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140129

Termination date: 20160530