CN106196380A - A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit - Google Patents

A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit Download PDF

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Publication number
CN106196380A
CN106196380A CN201610778714.4A CN201610778714A CN106196380A CN 106196380 A CN106196380 A CN 106196380A CN 201610778714 A CN201610778714 A CN 201610778714A CN 106196380 A CN106196380 A CN 106196380A
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CN
China
Prior art keywords
air
heat exchanger
port
temperature
mixing
Prior art date
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Pending
Application number
CN201610778714.4A
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Chinese (zh)
Inventor
李达
田彦法
张玉明
秦强
白琨
刘玉旺
高飞
常明刚
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Shandong Huake Planning Architectural Design Co Ltd
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Shandong Huake Planning Architectural Design Co Ltd
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Priority to CN201610778714.4A priority Critical patent/CN106196380A/en
Publication of CN106196380A publication Critical patent/CN106196380A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F24F5/0046Air-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 using natural energy, e.g. solar energy, energy from the ground
    • 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
    • F24F12/003Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using a heat pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/007Ventilation with forced flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B13/00Compression machines, plant or systems with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • 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
    • 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

Abstract

A kind of cold-producing medium heat of subcooling of the present invention recycles recuperation of heat air-treatment unit and air-treatment method and the adjustment control method of each parts, including new bellows, air exhaust box and source pump, described new bellows are disposed adjacent with air exhaust box, and described source pump is arranged on inside new bellows and air exhaust box;Compared with prior art: air-treatment unit utilizes cold-producing medium supercool institute thermal discharge under operation condition in summer, makes Cryogenic air be heated to suitable wind pushing temperature;Utilize cold-producing medium supercool institute thermal discharge, the outer Cryogenic air of preheating chamber, it is to avoid return air directly wind new with outdoor mixes generation and condenses water, it is not necessary to the extra heat source needed for electric heater waste high-grade energy and hot water, steam heating is set in the winter time under operating condition;Meanwhile, this unit utilizes source pump to reclaim indoor exhaust wind heat, it is achieved the Summer and winter Effec-tive Function of air-treatment unit.

Description

A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit
Technical field
The present invention relates to HVAC technical field, be specifically related to a kind of cold-producing medium heat of subcooling recycling recuperation of heat air Process unit.
Background technology
Along with the continuous improvement of quality of social life, indoor environment comfort level is required more and more higher by people, and air regulates System processes to meet the demand of people to the temperature of air, humidity etc..For comfort air conditioning system in summer, air-conditioning temperature Degree and indoor temperature difference not preferably greater than 10 DEG C.Primary retirn air formula unit is by air-treatment to dew point temperature, for meeting supply air temperature difference Requirement, Electric heating to be used hot-air again, there is obvious cold-hot counteraction phenomenon.Secondary return air formula unit profit By secondary return air reheating Cryogenic air, but it is complicated to there is operation operational management, and dew point reduces, and unit operation efficiency is relatively low etc. asks Topic.
Running under air-treatment unit operating mode in the winter time, when outside air temperature is relatively low in the winter time, indoor return air is with outdoor Air directly mixes, and mixing air reaches saturation and generation is condensed water;When outdoor air enthalpy is less than certain value, indoor Return air and the mixed air of new wind cannot process ventilation state point, it is therefore desirable to new wind relatively low to outdoor temperature preheats Process.
Summary of the invention
A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit that the present invention provides, utilizes cold-producing medium supercool Heat is to Summer Low Temperature air reheating and outdoor air preheating in winter, and reclaims indoor exhaust wind heat, runs with greater efficiency, real The purpose of existing energy-saving and emission-reduction.
A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit that the present invention provides, including new bellows, row Bellows and source pump, described new bellows are disposed adjacent with air exhaust box, described source pump be arranged on new bellows and Inside air exhaust box;
Described source pump includes compressor, four-way change-over valve, air-to-air energy recovery section heat exchanger, fresh air preheating section heat exchange Device, mixing air processing section heat exchanger, mixing air reheating section heat exchanger, electric expansion valve, wherein, at described mixing air Two ports of reason section heat exchanger the first port, air-to-air energy recovery section heat exchanger the first port and compressor connect described respectively Four ports of four-way change-over valve;Second port of described air-to-air energy recovery section heat exchanger connects the first electronics three-way control valve First port, the second port of the first electronics three-way control valve connects the first port of mixing air reheating section heat exchanger, mixing Air reheating section heat exchanger the second port connects the first port of the first electromagnetic valve, and the second port of the first electromagnetic valve divides two-way, One tunnel connects the 3rd port of the first electronics three-way control valve, and another road connects the first port of electric expansion valve;Electronic expansion Second port of valve divides two-way, and a road connects the first port of the second electromagnetic valve, and another road connects the second electronics three-way control valve The 3rd port;Second port of the second electromagnetic valve connects the second port of fresh air preheating heat exchanger, fresh air preheating heat exchanger First port connects the second port of the second electronics three-way control valve, and the first port of the second electronics three-way control valve connects mixing Second port of air-treatment section heat exchanger.
Described new bellows are disposed with the first new wind entrance, fresh air preheating section heat exchanger at the conveying direction of wind, mix Close air-treatment section heat exchanger, mixing air reheating section heat exchanger, humidifier, pressure fan, arrive air outlet afterwards;Described is new Wind preheating section heat exchanger, the duct wall between mixing air processing section heat exchanger is provided with return air inlet;
Described air exhaust box is disposed with air draft entrance, air-to-air energy recovery section heat exchanger, row in the discharge direction of wind Blower fan, arrives wind exhausting outlet afterwards;Described air draft entrance, the duct wall between air-to-air energy recovery section heat exchanger is provided with Two new wind entrances.
The air-treatment method in summer of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit:
New wind enters fresh air preheating section heat exchanger through the first new wind entrance, and new wind is not made to locate in fresh air preheating section heat exchanger Reason, the indoor return air entered with return air inlet afterwards mixes.Mixing air enters mixing air processing section heat exchanger, and mixing air exists With low-temperature low-pressure refrigerant liquid heat exchange in mixing air processing section heat exchanger, the evaporation of low-temperature low-pressure refrigerant liquid boiling is inhaled Heat, mixing air is processed to dew point temperature, and mixing air temperature, humidity reduce, and enters mixing air reheating section heat exchange afterwards Device, air is further with high-temperature high-pressure refrigerant liquid heat exchange, high-temperature high-pressure refrigerant in mixing air reheating section heat exchanger Cooling down supercool, mixing air temperature is increased to suitable ventilation state point, and last mixing air is exported through air-supply by pressure fan Send into the waste heat in indoor absorption chamber and remaining wet.
Air draft enters air-to-air energy recovery section heat exchanger through air draft entrance, and the relatively low air draft of indoor temperature is in air-to-air energy recovery heat exchange With high-temperature high-pressure refrigerant gas converting heat in device, refrigerant gas is condensed to saturated refrigerant liquid, and air draft is heated up, Air-treatment unit utilizes source pump to reclaim indoor temperature relatively low exhaust airflow cold, improves source pump summer simultaneously Work efficiency;When refrigerant heat exchanger amount deficiency in indoor low temperature air draft with air-to-air energy recovery section heat exchanger, the new wind of scalable draws Enter ratio to meet the heat exchange amount of air-to-air energy recovery section heat exchanger;New wind enters air-treatment unit through the second new wind entrance, with Indoor exhaust wind mixes, and air mass flow in increasing exhaust heat recovering heat exchanger makes air-to-air energy recovery section heat exchanger stable operation.Indoor Air draft or indoor exhaust wind, new wind mixing air are heated up in air-to-air energy recovery section heat exchanger, finally by exhaust blower through row Outdoor environment is sent in wind outlet.
The winter air processing method of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit:
New wind enters the fresh air preheating section heat exchanger of air-treatment unit through the first new wind entrance.Air-treatment unit is in the winter During season operating mode operation, outdoor new air temperature is relatively low, with high-temperature high-pressure refrigerant liquid heat exchange in fresh air preheating section heat exchanger, and system Cryogen liquid cools down supercool further, and air themperature raises, it is to avoid it is solidifying that indoor return air directly mixes generation with the outdoor new wind of low temperature Bear water;Outdoor new wind mixes with the indoor return air entering return air inlet after fresh air preheating section heat exchanger pre-heating temperature elevation, mixing sky Gas enters mixing air processing section heat exchanger;Mixing air in mixing air processing section heat exchanger with high-temperature high-pressure refrigerant gas Body heat exchange, refrigerant gas is condensed to saturated refrigerant liquid, and air is heated up, and enters mixing air hot arc more afterwards Heat exchanger.Air does not deals with in mixing air reheating section heat exchanger, enters heater afterwards humidified, and air is processed to Ventilation state point;Finally, air is sent into indoor by pressure fan through air-supply outlet.
Air draft enters air-to-air energy recovery section heat exchanger through air draft entrance, and the air draft that indoor temperature is higher is changed at air-to-air energy recovery With low-temperature low-pressure refrigerant liquid heat exchange in hot device, boiling refrigerant liquid evaporation endothermic, temperature of outgoing air reduces.Air processing machine Group utilizes source pump to reclaim indoor temperature higher exhaust airflow heat, improves the work efficiency in source pump winter simultaneously. When refrigerant heat exchanger amount deficiency in the higher air draft of indoor temperature with air-to-air energy recovery section heat exchanger, scalable Leads to new breeze ratio Meet the heat exchange amount of air-to-air energy recovery section heat exchanger.New wind enters air-treatment unit through the second new wind entrance, with indoor row Wind mixes, and air mass flow in increasing exhaust heat recovering heat exchanger makes air-to-air energy recovery section heat exchanger stable operation.Indoor exhaust wind or Indoor exhaust wind, new wind mixing air be cooled cooling in air-to-air energy recovery section heat exchanger, finally by exhaust blower through wind exhausting outlet Send into outdoor environment.
Each parts adjustment control method when cold-producing medium heat of subcooling recycles the summer of recuperation of heat air-treatment unit:
Air-treatment unit is when summer condition runs, and the first electromagnetic valve is opened, the first electronics three-way control valve regulate into Entering mixing air reheating section heat exchanger refrigerant flow, the second closed electromagnetic valve, the second electronics three-way control valve is complete by cold-producing medium Radical is led to, and cold-producing medium is without fresh air preheating section heat exchanger, and now, source pump is under cooling condition operation, and air exhaust heat returns Receiving section heat exchanger to use as condenser, mixing air reheating section heat exchanger is crossed cold heat exchanger as cold-producing medium and is used, mixing sky Gas disposal section heat exchanger uses as vaporizer.
Compressor the first port high-temperature high-pressure refrigerant gas enters through the first port and second port of four-way change-over valve First port of air-to-air energy recovery section heat exchanger and indoor low temperature air draft or indoor exhaust wind, outdoor new wind mixing air heat exchange, high Temperature higher pressure refrigerant gas is condensed to high-temperature high-pressure refrigerant liquid.In air-to-air energy recovery section heat exchanger, cold-producing medium is with temperature relatively Low indoor exhaust wind or indoor exhaust wind, outdoor new wind mixing air heat exchange, increase heat transfer temperature difference, enhance air-to-air energy recovery section and change Hot device heat transfer effect, improves the operational efficiency of source pump.High-temperature high-pressure refrigerant liquid is by air-to-air energy recovery section heat exchanger Second port flow out, enter first electronics three-way control valve the first port, part of refrigerant is regulated by the first electronics threeway Second port of valve flows out, and remainder cold-producing medium is flowed out by the 3rd port of the first electronics three-way control valve;At the first electronics The cold-producing medium that second port of three-way control valve flows out enters the first port of mixing air reheating section heat exchanger, High Temperature High Pressure system Cryogen liquid cools down supercool further, releases heat as Cryogenic air reheating thermal source.First electronics three-way control valve is by adjusting Joint enters the refrigerant flow of mixing air reheating section heat exchanger, regulation Cryogenic air and refrigerant heat exchanger amount, makes Cryogenic air It is heated to suitable wind pushing temperature.Supercool rear refrigerant liquid is flowed out by the second port of mixing air reheating section heat exchanger, The cold-producing medium flowed out with the 3rd port of the first electronics three-way control valve mixes, and enters electric expansion valve throttling, High Temperature High Pressure system Cryogen liquid section rheology is low-temperature low-pressure refrigerant liquid.Low-temperature low-pressure refrigerant liquid enters the second electronics three-way control valve 3rd port (the second closed electromagnetic valve), refrigerant liquid is flowed out by the first port of the second electronics three-way control valve afterwards, enters Enter the second port and the mixing air heat exchange of mixing air processing section heat exchanger.Mixing air processing section heat exchanger is by air-treatment To dew point temperature, the evaporation of low-temperature low-pressure refrigerant liquid boiling becomes low-temperature low-pressure refrigerant gas.Low-temperature low-pressure refrigerant gas Body is flowed out by mixing air processing section heat exchanger the first port, returns to compression through the 3rd port of four-way change-over valve and the 4th port Machine the second port, is compressed by the compressor to high temperature higher pressure refrigerant gas, enters next refrigerant cycle.
Each parts adjustment control method when cold-producing medium heat of subcooling recycles the winter of recuperation of heat air-treatment unit:
When air-treatment unit operating mode in the winter time is run, the first closed electromagnetic valve, the first electronics three-way control valve will refrigeration Agent all bypasses, and cold-producing medium is opened without mixing air reheating section heat exchanger, the second electromagnetic valve, the second electronics three-way control valve Regulation enters fresh air preheating section heat exchanger refrigerant flow.When air processing machine unit in winter runs, source pump is in and heats work Running under condition, air-to-air energy recovery section heat exchanger uses as vaporizer, and mixing air processing section heat exchanger uses as condenser, Fresh air preheating section heat exchanger is crossed cold heat exchanger as cold-producing medium and is used.
Compressor the first port high-temperature high-pressure refrigerant gas enters through the first port and the 4th port of four-way change-over valve New wind, indoor return air mixing low temp air heat-exchange after first port of mixing air processing section heat exchanger and outdoor preheating, high temperature Higher pressure refrigerant gas is condensed to saturated refrigerant liquid, and Cryogenic air is heated up.The saturated refrigerant liquid of High Temperature High Pressure Body is flowed out by mixing air processing section heat exchanger the second port, enters the first port of the second electronics three-way control valve, a part Cold-producing medium is flowed out by the second port of the second electronics three-way control valve, and remainder cold-producing medium is by the second electronics three-way control valve 3rd port flows out;The cold-producing medium flowed out at the second port of the second electronics three-way control valve enters fresh air preheating section heat exchanger First port, high-temperature high-pressure refrigerant liquid cools down supercool further, releases heat and preheats thermal source as outdoor Cryogenic air, will Outdoor lower temperature fresh air preheating heats up, it is to avoid indoor return air directly wind new with outdoor mixes generation and condenses water.Second electronics three Logical regulation valve enters the refrigerant flow of fresh air preheating section heat exchanger by regulation, the outer Cryogenic air of conditioning chamber and refrigerant heat exchanger Amount, makes Cryogenic air by refrigerant heat to suitably preheating temperature.Supercool rear refrigerant liquid is by fresh air preheating section heat exchanger Second port flows out, and the cold-producing medium flowed out with the 3rd port of the second electronics three-way control valve mixes, and enters electric expansion valve joint Stream, the refrigerant liquid throttling of High Temperature High Pressure becomes low-temperature low-pressure refrigerant liquid.Low-temperature low-pressure refrigerant liquid enters first 3rd port (the first closed electromagnetic valve) of electronics three-way control valve, refrigerant liquid is by the first electronics three-way control valve afterwards First port flows out, and enters the higher air draft of the second port and the indoor temperature of air-to-air energy recovery section heat exchanger or indoor row Wind, outdoor new wind mixing air heat exchange, the evaporation of low-temperature low-pressure refrigerant liquid boiling becomes low-temperature low-pressure refrigerant gas.Air draft Indoor exhaust wind that in heat-recovery section heat exchanger, cold-producing medium and temperature are higher or indoor exhaust wind, outdoor new wind mixing air heat exchange, increase Big heat transfer temperature difference, enhances air-to-air energy recovery section heat exchanger heat transfer effect, improves the operational efficiency of source pump.Low-temp low-pressure Refrigerant gas is flowed out, through second port and the 3rd of four-way change-over valve by the first port mixing air-to-air energy recovery section heat exchanger Port returns to compressor the second port, is compressed into high-temperature high-pressure refrigerant gas, enters next refrigerant cycle.
A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit, has the advantage that
(1) air-treatment unit utilizes cold-producing medium supercool institute thermal discharge under operation condition in summer, makes Cryogenic air be added Heat is to suitable wind pushing temperature;Cold-producing medium supercool institute thermal discharge is utilized in the winter time under operating condition, the outer Cryogenic air of preheating chamber, keep away Exempt from return air directly wind new with outdoor and mix generation condensation water, it is not necessary to electric heater waste high-grade energy and hot water, steaming are set Extra heat source needed for vapour heating.
(2) under summer condition, cold-producing medium and the relatively low air exhaust heat exchange of indoor temperature in source pump condenser, reclaim indoor row Air-cooled amount, reduces source pump condensing pressure and energy consumption of compressor;Under winter condition, cold-producing medium and room in source pump vaporizer The higher air exhaust heat exchange of interior temperature, reclaims indoor exhaust wind heat, improves source pump evaporating pressure, reduces energy consumption of compressor, improves The work efficiency of unit in summer and winter, it is achieved the Summer and winter Effec-tive Function of air-treatment unit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
In figure: 1, compressor;1a, compressor the first port;1b, compressor the second port;2, four-way change-over valve;2a, four Logical reversal valve the first port;2b, four-way change-over valve the second port;2c, four-way change-over valve the 3rd port;2d, four-way change-over valve Four ports;3, air-to-air energy recovery section heat exchanger;3a, air-to-air energy recovery section heat exchanger the first port;3b, air-to-air energy recovery section heat exchange Device the second port;4, the first electronics three-way control valve;4a, first electronics three-way control valve the first port;4b, the first electronics threeway Regulation valve the second port;4c, the first electronics three-way control valve the 3rd port;5, the first electromagnetic valve;5a, first electromagnetic valve the first end Mouthful;5b, first electromagnetic valve the second port;6, mixing air reheating section heat exchanger;6a, mixing air reheating section heat exchanger the first end Mouthful;6b, mixing air reheating section heat exchanger the second port;7, electric expansion valve;7a, electric expansion valve the first port;7b, electronics Expansion valve the second port;8, the second electronics three-way control valve;8a, second electronics three-way control valve the first port;8b, the second electronics Three-way control valve the second port;8c, the second electronics three-way control valve the 3rd port;9, the second electromagnetic valve;9a, the second electromagnetic valve Single port;9b, second electromagnetic valve the second port;10, fresh air preheating section heat exchanger;10a, fresh air preheating section heat exchanger the first end Mouthful;10b, fresh air preheating section heat exchanger the second port;11, mixing air processing section heat exchanger;11a, mixing air processing section change Hot device the first port;11b, mixing air processing section heat exchanger the second port;12, humidifier;13, pressure fan;14, exhaust blower; 15, the first new wind entrance;16, return air inlet;17, air-supply outlet;18, air draft entrance;19, the second new wind entrance;20, air draft goes out Mouthful;
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit that the present invention provides, including new bellows, row Bellows and source pump, described new bellows are disposed adjacent with air exhaust box, described source pump be arranged on new bellows and Inside air exhaust box;
Described source pump includes compressor 1, four-way change-over valve 2, air-to-air energy recovery section heat exchanger 3, fresh air preheating section Heat exchanger 10, mixing air processing section heat exchanger 11, mixing air reheating section heat exchanger 6, electric expansion valve 7, wherein, described Two ends of mixing air processing section heat exchanger the first port 11a, air-to-air energy recovery section heat exchanger the first port 3a and compressor 1 Mouth connects four ports of four-way change-over valve 2 respectively;Described air-to-air energy recovery section heat exchanger the second port 3b connects the first electronics Three-way control valve the first port 4a, first electronics three-way control valve the second port 4b connect mixing air reheating section heat exchanger first Port 6a, mixing air reheating section heat exchanger the second port 6b connect first electromagnetic valve the first port 5a, the first electromagnetic valve second Port 5b divide two-way, and a road connects the first electronics three-way control valve the 3rd port 4c, and another road connects electric expansion valve the first end Mouth 7a;Electric expansion valve the second port 7b divide two-way, and a road connects second electromagnetic valve the first port 9a, and another road connects the second electricity Sub-three-way control valve the 3rd port 8c;Second electromagnetic valve the second port 9b connects fresh air preheating section heat exchanger the second port 10b, newly Wind preheating heat exchanger the first port 10a connects second electronics three-way control valve the second port 8b, the second electronics three-way control valve Single port 8a connects mixing air processing section heat exchanger the second port 11b.
Described new bellows are disposed with the first new wind entrance 15, fresh air preheating section heat exchanger at the conveying direction of wind 10, mixing air processing section heat exchanger 11, mixing air reheating section heat exchanger 6, humidifier 12, pressure fan 13, arrive afterwards and send Wind outlet 17;Described fresh air preheating section heat exchanger 10, the duct wall between mixing air processing section heat exchanger 11 is provided with Return air inlet 16;
Described air exhaust box is disposed with air draft entrance 18 in the discharge direction of wind, air-to-air energy recovery section heat exchanger 3, Exhaust blower 14, arrives wind exhausting outlet 20 afterwards;Described air draft entrance 18, the duct wall between air-to-air energy recovery section heat exchanger 3 On be provided with the second new wind entrance 19.
The air-treatment method in summer of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit:
New wind enters fresh air preheating section heat exchanger 10 through the first new wind entrance 15, and new wind is in fresh air preheating section heat exchanger 10 Not dealing with, the indoor return air entered with return air inlet 16 afterwards mixes.Mixing air enters mixing air processing section heat exchanger 11, Mixing air in mixing air processing section heat exchanger with low-temperature low-pressure refrigerant liquid heat exchange, low-temperature low-pressure refrigerant liquid boil Rising evaporation endothermic, mixing air is processed to dew point temperature, and mixing air temperature, humidity reduce, and enters mixing air more afterwards Hot arc heat exchanger 6.Air in mixing air reheating section heat exchanger 6 with high-temperature high-pressure refrigerant liquid heat exchange, refrigerant liquid Cooling is supercool further, and mixing air temperature is increased to suitable ventilation state point, and last mixing air is by pressure fan 13 warp Waste heat in the air-supply outlet 17 indoor absorption chambers of feeding and remaining wet.
Air draft enters air-to-air energy recovery section heat exchanger 3 through air draft entrance 18, and the relatively low air draft of indoor temperature is at air-to-air energy recovery Being condensed to saturated refrigerant liquid with high-temperature high-pressure refrigerant gas converting heat, refrigerant gas in section heat exchanger 3, air draft is added Heat heats up.Air-treatment unit utilizes source pump to reclaim indoor temperature relatively low exhaust airflow cold, improves heat pump machine simultaneously Organize the work efficiency in summer;When refrigerant heat exchanger amount deficiency in indoor low temperature air draft with air-to-air energy recovery section heat exchanger 3, adjustable Joint Leads to new breeze ratio meets the heat exchange amount of air-to-air energy recovery section heat exchanger 3;New wind enters air through the second new wind entrance 19 Process unit, mix with indoor exhaust wind, air mass flow in increasing exhaust heat-recovery section heat exchanger 3, make air-to-air energy recovery section heat exchange Device 3 stable operation.Indoor exhaust wind or indoor exhaust wind, new wind mixing air are heated up in air-to-air energy recovery section heat exchanger 3, Finally sent into outdoor environment by exhaust blower 14 through wind exhausting outlet 20.
The winter air processing method of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit:
New wind enters fresh air preheating section heat exchanger 10 through the first new wind entrance 15, and air-treatment unit operating mode in the winter time is run Time, outdoor new air temperature is relatively low, with high-temperature high-pressure refrigerant liquid heat exchange, refrigerant liquid in fresh air preheating section heat exchanger 10 Cooling is supercool further, and air themperature raises, it is to avoid indoor return air directly mixes generation with the outdoor new wind of low temperature and condenses water;Outdoor New wind mixes with the indoor return air entering return air inlet 16 after fresh air preheating section heat exchanger 10 pre-heating temperature elevation, and mixing air enters Mixing air processing section heat exchanger 11;Mixing air in mixing air processing section heat exchanger 11 with high-temperature high-pressure refrigerant gas Heat exchange, refrigerant gas is condensed to saturated refrigerant liquid, and air is heated up, and enters mixing air hot arc more afterwards and changes Hot device 6.Air does not deals with in mixing air reheating section heat exchanger 6, enters heater 12 afterwards humidified, and air is processed To ventilation state point;Finally, air is sent into indoor by pressure fan 13 through air-supply outlet.
Air draft enters air-to-air energy recovery section heat exchanger 3 through air draft entrance 18, and the air draft that indoor temperature is higher is returned at air exhaust heat With low-temperature low-pressure refrigerant liquid heat exchange in receipts heat exchanger 3, boiling refrigerant liquid evaporation endothermic, temperature of outgoing air reduces.Air Processing unit utilizes source pump to reclaim indoor temperature higher exhaust airflow heat, improves the work in source pump winter simultaneously Efficiency;When refrigerant heat exchanger amount deficiency in the higher air draft of indoor temperature with air-to-air energy recovery section heat exchanger 3, the new wind of scalable draws Enter ratio to meet the heat exchange amount of air-to-air energy recovery section heat exchanger 3;New wind enters air-treatment unit through the second new wind entrance 19, Mix with indoor exhaust wind, air mass flow in increasing exhaust heat-recovery section heat exchanger 3, make the stable fortune of air-to-air energy recovery section heat exchanger 3 OK.Indoor exhaust wind or indoor exhaust wind, new wind mixing air be cooled cooling in air-to-air energy recovery section heat exchanger 3, finally by arranging Blower fan 14 sends into outdoor environment through wind exhausting outlet 20.
Each parts adjustment control method when cold-producing medium heat of subcooling recycles the summer of recuperation of heat air-treatment unit:
Air-treatment unit is when summer condition runs, and the first electromagnetic valve 5 is opened, and the first electronics three-way control valve 4 regulates Entering mixing air reheating section heat exchanger 6 refrigerant flow, the second electromagnetic valve 9 cuts out, and the second electronics three-way control valve 8 will refrigeration Agent all bypasses, and cold-producing medium is without fresh air preheating section heat exchanger 10.Now, source pump is under cooling condition operation, row Wind heat exhausting section heat exchanger 3 uses as condenser, and mixing air reheating section heat exchanger 6 crosses cold heat exchanger as cold-producing medium to be made With, mixing air processing section heat exchanger 11 uses as vaporizer.
Compressor the first port 1a high-temperature high-pressure refrigerant gas is through the first port 2a of four-way change-over valve and the second port 2b enters air-to-air energy recovery section heat exchanger the first port 3a and changes with indoor low temperature air draft or indoor exhaust wind, outdoor newly wind mixing air Heat, high-temperature high-pressure refrigerant gas is condensed to high-temperature high-pressure refrigerant liquid.In air-to-air energy recovery section heat exchanger 3 cold-producing medium with Indoor exhaust wind that temperature is relatively low or indoor exhaust wind, outdoor new wind mixing air heat exchange, increase heat transfer temperature difference, enhance air exhaust heat and return Receive section heat exchanger heat transfer effect, improve the operational efficiency of source pump.High-temperature high-pressure refrigerant liquid is by air-to-air energy recovery section Heat exchanger the second port 3b flows out, and enters first electronics three-way control valve the first port 4a, and part of refrigerant is by the first electronics Three-way control valve the second port 4b flows out, and remainder cold-producing medium is flowed out by the 3rd port 4c of the first electronics three-way control valve; The cold-producing medium flowed out at first electronics three-way control valve the second port 4b enters mixing air reheating section heat exchanger the first port 6a, High-temperature high-pressure refrigerant liquid cools down supercool further, releases heat as Cryogenic air reheating thermal source.First electronics threeway is adjusted Joint valve 4 is by the refrigerant flow of regulation entrance mixing air reheating section heat exchanger 6, regulation Cryogenic air and refrigerant heat exchanger Amount, makes Cryogenic air be heated to suitable wind pushing temperature.Supercool rear refrigerant liquid is by mixing air reheating section heat exchanger Two-port netwerk 6b flows out, and the cold-producing medium flowed out with the first electronics three-way control valve the 3rd port 4c mixes, and enters electric expansion valve 7 and saves Stream, high-temperature high-pressure refrigerant liquid section rheology is low-temperature low-pressure refrigerant liquid.Low-temperature low-pressure refrigerant liquid enters the second electricity Sub-three-way control valve the 3rd port 8c (the second closed electromagnetic valve), refrigerant liquid is by the second electronics three-way control valve first afterwards Port 8a flows out, and enters mixing air processing section heat exchanger the second port 11b and mixing air heat exchange.Mixing air processing section changes Air-treatment to dew point temperature, the evaporation of low-temperature low-pressure refrigerant liquid boiling are become low-temperature low-pressure refrigerant gas by hot device 11. Low-temperature low-pressure refrigerant gas is flowed out by mixing air processing section heat exchanger the first port 11a, through four-way change-over valve 2c the 3rd end Mouth and the 4th port 2d return to compressor the second port 1b, are compressed to high-temperature high-pressure refrigerant gas by compressor 1, enter next Individual refrigerant cycle.
Each parts adjustment control method when cold-producing medium heat of subcooling recycles the winter of recuperation of heat air-treatment unit:
When air-treatment unit operating mode in the winter time is run, the first closed electromagnetic valve 5, the first electronics three-way control valve 4 will system Cryogen all bypasses, and cold-producing medium is without mixing air reheating section heat exchanger 6, and the second electromagnetic valve 9 is opened, and the second electronics threeway is adjusted Joint valve 8 regulation enters fresh air preheating section heat exchanger refrigerant flow.When air processing machine unit in winter runs, source pump is in system Running under thermal condition, air-to-air energy recovery section heat exchanger 3 uses as vaporizer, and mixing air processing section heat exchanger 11 is as condensation Device uses, and fresh air preheating section heat exchanger 10 is crossed cold heat exchanger as cold-producing medium and used.
Compressor the first port 1a high-temperature high-pressure refrigerant gas is through the first port 2a of four-way change-over valve and the 4th port After 2d entrance mixing air processing section heat exchanger the first port 11a and outdoor preheating, newly wind, indoor return air mixing low temp air change Heat, high-temperature high-pressure refrigerant gas is condensed to saturated refrigerant liquid, and Cryogenic air is heated up.The saturated system of High Temperature High Pressure Cryogen liquid is flowed out by mixing air processing section heat exchanger the second port 11b, enters second electronics three-way control valve the first port 8a, part of refrigerant is flowed out by second electronics three-way control valve the second port 8b, and remainder cold-producing medium is by the second electronics three Logical regulation valve the 3rd port 8c flows out;The cold-producing medium flowed out at second electronics three-way control valve the second port 8b enters fresh air preheating Section heat exchanger the first port 10a, high-temperature high-pressure refrigerant liquid cools down supercool further, releases heat as outdoor Cryogenic air Preheating thermal source, heats up outdoor lower temperature fresh air preheating, it is to avoid indoor return air directly wind new with outdoor mixes generation and condenses water. Second electronics three-way control valve 8 enters the refrigerant flow of fresh air preheating section heat exchanger 10 by regulation, and the outer low temperature of conditioning chamber is empty Gas and refrigerant heat exchanger amount, make Cryogenic air by refrigerant heat to suitably preheating temperature.Supercool rear refrigerant liquid is by newly Wind preheating section heat exchanger the second port 10b flows out, and the cold-producing medium flowed out with the second electronics three-way control valve the 3rd port 8c mixes, Entering electric expansion valve 7 to throttle, the refrigerant liquid throttling of High Temperature High Pressure becomes low-temperature low-pressure refrigerant liquid.Low-temp low-pressure system Cryogen liquid enters the first electronics three-way control valve the 3rd port 4c (the first closed electromagnetic valve), and refrigerant liquid is by first afterwards Electronics three-way control valve the first port 4a flows out, and enters air-to-air energy recovery section heat exchanger 3b the second port higher with indoor temperature Air draft or indoor exhaust wind, outdoor new wind mixing air heat exchange, the evaporation of low-temperature low-pressure refrigerant liquid boiling becomes low-temp low-pressure Refrigerant gas.Indoor exhaust wind that in air-to-air energy recovery section heat exchanger 3, cold-producing medium and temperature are higher or indoor exhaust wind, outdoor new wind Mixing air heat exchange, increases heat transfer temperature difference, enhances air-to-air energy recovery section heat exchanger heat transfer effect, improve the fortune of source pump Line efficiency.Low-temperature low-pressure refrigerant gas is flowed out by mixing air-to-air energy recovery section heat exchanger the first port 3a, through four-way change-over valve Second port 2b and the 3rd port 2c returns to compressor the second port 1b, is compressed into high-temperature high-pressure refrigerant gas, under entrance One refrigerant cycle.

Claims (5)

1. a cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit, it is characterised in that: include new bellows, air exhaust box And source pump, described new bellows are disposed adjacent with air exhaust box, and described source pump is arranged on new bellows and air draft Inside case;
Described source pump include compressor, four-way change-over valve, air-to-air energy recovery section heat exchanger, fresh air preheating section heat exchanger, Mixing air processing section heat exchanger, mixing air reheating section heat exchanger, electric expansion valve, wherein, described mixing air processes Two ports of section heat exchanger the first port, air-to-air energy recovery section heat exchanger the first port and compressor connect described four respectively Four ports of logical reversal valve;Second port of described air-to-air energy recovery section heat exchanger connects the of the first electronics three-way control valve Single port, the second port of the first electronics three-way control valve connects the first port of mixing air reheating section heat exchanger, mixing sky Gas reheating section heat exchanger the second port connects the first port of the first electromagnetic valve, and the second port of the first electromagnetic valve divides two-way, and one Road connects the 3rd port of the first electronics three-way control valve, and another road connects the first port of electric expansion valve;Electric expansion valve The second port divide two-way, a road connects the first port of the second electromagnetic valve, and another road connects the second electronics three-way control valve 3rd port;Second port of the second electromagnetic valve connects the second port of fresh air preheating heat exchanger, the of fresh air preheating heat exchanger Single port connects the second port of the second electronics three-way control valve, and the first port of the second electronics three-way control valve connects mixing sky Second port of gas disposal section heat exchanger;
Described new bellows are disposed with the first new wind entrance, fresh air preheating section heat exchanger, mixing sky at the conveying direction of wind Gas disposal section heat exchanger, mixing air reheating section heat exchanger, humidifier, pressure fan, arrive air outlet afterwards;Described new wind is pre- Hot arc heat exchanger, the duct wall between mixing air processing section heat exchanger is provided with return air inlet;
Described air exhaust box is disposed with air draft entrance in the discharge direction of wind, air-to-air energy recovery section heat exchanger, exhaust blower, Arrive wind exhausting outlet afterwards;Described air draft entrance, the duct wall between air-to-air energy recovery section heat exchanger is provided with second new Wind entrance.
Cold-producing medium heat of subcooling the most according to claim 1 recycling recuperation of heat air-treatment unit, it is characterised in that:
The air-treatment method in summer of air-treatment unit:
New wind enters fresh air preheating section heat exchanger through the first new wind entrance, and new wind does not deals with in fresh air preheating section heat exchanger, The indoor return air entered with return air inlet afterwards mixes, and mixing air enters mixing air processing section heat exchanger, and mixing air is mixed With low-temperature low-pressure refrigerant liquid heat exchange in conjunction air-treatment section heat exchanger, enter mixing air reheating section heat exchanger afterwards, mixed Close air in mixing air reheating section heat exchanger with high-temperature high-pressure refrigerant liquid heat exchange, last mixing air is by pressure fan The waste heat in indoor absorption chamber and remaining wet is sent into through air-supply outlet;
Air draft enters air-to-air energy recovery section heat exchanger through air draft entrance, and the relatively low air draft of indoor temperature is in air-to-air energy recovery heat exchanger With high-temperature high-pressure refrigerant gas converting heat, it is cold that air-treatment unit utilizes source pump to reclaim the relatively low exhaust airflow of indoor temperature Amount;When refrigerant heat exchanger amount deficiency in indoor low temperature air draft with air-to-air energy recovery section heat exchanger, scalable Leads to new breeze ratio Meet the heat exchange amount of air-to-air energy recovery section heat exchanger;New wind enters air-treatment unit through the second new wind entrance, with indoor row Wind mixes;Indoor exhaust wind or indoor exhaust wind, new wind mixing air are heated up in air-to-air energy recovery section heat exchanger, finally by Exhaust blower sends into outdoor environment through wind exhausting outlet.
Cold-producing medium heat of subcooling the most according to claim 1 recycling recuperation of heat air-treatment unit, it is characterised in that:
The winter air processing method of air-treatment unit:
New wind enters the fresh air preheating section heat exchanger of air-treatment unit through the first new wind entrance, in fresh air preheating section heat exchanger With high-temperature high-pressure refrigerant liquid heat exchange;Outdoor new wind after fresh air preheating section heat exchanger pre-heating temperature elevation with enter return air inlet Indoor return air mixes, and mixing air enters mixing air processing section heat exchanger;Mixing air is at mixing air processing section heat exchanger In with high-temperature high-pressure refrigerant gas converting heat, afterwards enter mixing air reheating section heat exchanger, air is at mixing air hot arc again Heat exchanger does not deals with, enters humidifier afterwards humidified;Finally, air is sent into indoor by pressure fan through air-supply outlet;
Air draft enters air-to-air energy recovery section heat exchanger through air draft entrance, and the higher air draft of indoor temperature is at air-to-air energy recovery heat exchanger In with low-temperature low-pressure refrigerant liquid heat exchange, air-treatment unit utilize source pump reclaim indoor temperature higher exhaust airflow heat Amount;When refrigerant heat exchanger amount deficiency in the higher air draft of indoor temperature with air-to-air energy recovery section heat exchanger, scalable Leads to new breeze Ratio meets the heat exchange amount of air-to-air energy recovery section heat exchanger;New wind enters air-treatment unit through the second new wind entrance, with room Interior air draft mixes;Indoor exhaust wind or indoor exhaust wind, new wind mixing air be cooled cooling in air-to-air energy recovery section heat exchanger, After sent into outdoor environment by exhaust blower through wind exhausting outlet.
4. recycling recuperation of heat air-treatment unit according to the cold-producing medium heat of subcooling described in any one of claim 1 or 2, it is special Levy and be:
The adjustment control method of each parts during summer:
Air-treatment unit is when summer condition runs, and the first electromagnetic valve is opened, and the first electronics three-way control valve regulation enters mixed Closing air reheating section heat exchanger refrigerant flow, the second closed electromagnetic valve, the second electronics three-way control valve is all other by cold-producing medium Logical, cold-producing medium uses as condenser without fresh air preheating section heat exchanger, air-to-air energy recovery section heat exchanger, mixing air reheating Section heat exchanger is crossed cold heat exchanger as cold-producing medium and is used, and mixing air processing section heat exchanger uses as vaporizer;
Compressor the first port high-temperature high-pressure refrigerant gas enters air draft through the first port and second port of four-way change-over valve First port of heat-recovery section heat exchanger and indoor low temperature air draft or indoor exhaust wind, outdoor new wind mixing air heat exchange, high temperature is high Compression refrigerant gas is condensed to high-temperature high-pressure refrigerant liquid, and in air-to-air energy recovery section heat exchanger, cold-producing medium is relatively low with temperature Indoor exhaust wind or indoor exhaust wind, outdoor new wind mixing air heat exchange;High-temperature high-pressure refrigerant liquid is by air-to-air energy recovery section heat exchange Second port of device flows out, and enters first electronics three-way control valve the first port, and part of refrigerant is adjusted by the first electronics threeway Second port of joint valve flows out, and remainder cold-producing medium is flowed out by the 3rd port of the first electronics three-way control valve;At the first electricity The cold-producing medium that second port of sub-three-way control valve flows out enters the first port of mixing air reheating section heat exchanger, High Temperature High Pressure Refrigerant liquid cools down supercool further;First electronics three-way control valve enters mixing air reheating section heat exchanger by regulation Refrigerant flow, regulation Cryogenic air and refrigerant heat exchanger amount, make Cryogenic air be heated to suitable wind pushing temperature;After supercool Refrigerant liquid is flowed out, with the 3rd port of the first electronics three-way control valve by the second port of mixing air reheating section heat exchanger The cold-producing medium mixing flowed out, enters electric expansion valve throttling, and high-temperature high-pressure refrigerant liquid section rheology is low-temperature low-pressure refrigerant Liquid;Low-temperature low-pressure refrigerant liquid enters the 3rd port (the second closed electromagnetic valve) of the second electronics three-way control valve, afterwards Refrigerant liquid is flowed out by the first port of the second electronics three-way control valve, enters the second end of mixing air processing section heat exchanger Mouth and mixing air heat exchange;Mixing air processing section heat exchanger is by air-treatment to dew point temperature, low-temperature low-pressure refrigerant liquid Explosive evaporation becomes low-temperature low-pressure refrigerant gas;Low-temperature low-pressure refrigerant gas is by mixing air processing section heat exchanger the first end Mouthful flow out, return to compressor the second port through the 3rd port and the 4th port of four-way change-over valve, be compressed by the compressor to high temperature Higher pressure refrigerant gas, enters next refrigerant cycle.
5. recycling recuperation of heat air-treatment unit according to the cold-producing medium heat of subcooling described in any one of claim 1 or 3, it is special Levy and be:
Each parts adjustment control method during winter:
When air-treatment unit operating mode in the winter time is run, the first closed electromagnetic valve, the first electronics three-way control valve is complete by cold-producing medium Radical is led to, and cold-producing medium is opened without mixing air reheating section heat exchanger, the second electromagnetic valve, the second electronics three-way control valve regulation Enter fresh air preheating section heat exchanger refrigerant flow;When air processing machine unit in winter runs, source pump is under heating condition Running, air-to-air energy recovery section heat exchanger uses as vaporizer, and mixing air processing section heat exchanger uses as condenser, new wind Preheating section heat exchanger is crossed cold heat exchanger as cold-producing medium and is used;
Compressor the first port high-temperature high-pressure refrigerant gas enters mixing through the first port and the 4th port of four-way change-over valve New wind, indoor return air mixing low temp air heat-exchange after first port of air-treatment section heat exchanger and outdoor preheating, High Temperature High Pressure Refrigerant gas is condensed to saturated refrigerant liquid, and Cryogenic air is heated up;The saturated refrigerant liquid of High Temperature High Pressure by Mixing air processing section heat exchanger the second port flows out, and enters the first port of the second electronics three-way control valve, part refrigeration Agent is flowed out by the second port of the second electronics three-way control valve, and remainder cold-producing medium is by the 3rd of the second electronics three-way control valve the Port flows out;The cold-producing medium flowed out at the second port of the second electronics three-way control valve enters the first of fresh air preheating section heat exchanger Port, high-temperature high-pressure refrigerant liquid cools down supercool further;Second electronics three-way control valve enters fresh air preheating by regulation The refrigerant flow of section heat exchanger, supercool rear refrigerant liquid is flowed out by fresh air preheating section heat exchanger the second port, with the second electricity The cold-producing medium mixing that 3rd port of sub-three-way control valve flows out, enters electric expansion valve throttling, the refrigerant liquid of High Temperature High Pressure Body segment rheology is low-temperature low-pressure refrigerant liquid;Low-temperature low-pressure refrigerant liquid enters the 3rd end of the first electronics three-way control valve Mouth (the first closed electromagnetic valve), refrigerant liquid is flowed out by the first port of the first electronics three-way control valve afterwards, enters air draft Air draft that second port of heat-recovery section heat exchanger is higher with indoor temperature or indoor exhaust wind, outdoor new wind mixing air change Heat, the evaporation of low-temperature low-pressure refrigerant liquid boiling becomes low-temperature low-pressure refrigerant gas;Air-to-air energy recovery section heat exchanger freezes Indoor exhaust wind that agent and temperature are higher or indoor exhaust wind, outdoor new wind mixing air heat exchange;Low-temperature low-pressure refrigerant gas is by mixing The first port closing air-to-air energy recovery section heat exchanger flows out, and returns to compressor through the second port and the 3rd port of four-way change-over valve Second port, is compressed into high-temperature high-pressure refrigerant gas, enters next refrigerant cycle.
CN201610778714.4A 2016-08-31 2016-08-31 A kind of cold-producing medium heat of subcooling recycling recuperation of heat air-treatment unit Pending CN106196380A (en)

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CN106885308A (en) * 2017-03-31 2017-06-23 谭莹 A kind of heat-pump-type heat recovery fresh air purifies dehumidifying integrated machine
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DE102021104762A1 (en) 2020-02-26 2021-08-26 Helmut Klaus Gerhard Schwieterka Decentralized device for air conditioning and ventilation of individual interiors and system for air conditioning of interiors

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