CN203336708U - Direct-expansion type double-effect heat recovery heat pump air-conditioner system - Google Patents

Direct-expansion type double-effect heat recovery heat pump air-conditioner system Download PDF

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Publication number
CN203336708U
CN203336708U CN2013202784688U CN201320278468U CN203336708U CN 203336708 U CN203336708 U CN 203336708U CN 2013202784688 U CN2013202784688 U CN 2013202784688U CN 201320278468 U CN201320278468 U CN 201320278468U CN 203336708 U CN203336708 U CN 203336708U
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China
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air
heat exchanger
heat
indoor
direct
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CN2013202784688U
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于磊
李盛明
于涛
于冰
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QINGDAO HONGYU ENVIRONMETNAL PROTECTION AIR CONDITIONING EQUIPMENT CO Ltd
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QINGDAO HONGYU ENVIRONMETNAL PROTECTION AIR CONDITIONING EQUIPMENT CO Ltd
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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
    • 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]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Abstract

The utility model discloses a direct-expansion type double-effect heat recovery heat pump air-conditioner system which comprises a heat pump system composed of a compressor, a four-way valve, an air-liquid separator, a one-way valve, an expansion valve, a liquid storage device, an inside room fin type heat exchanger and an outside room fin type heat exchanger. The direct-expansion type double-effect heat recovery heat pump air-conditioner system further comprises an air supply system and an air exhaust system, wherein the air supply system is composed of an air supply machine, an air heat exchange core and the inside room fin type heat exchanger, and the air exhaust system is composed of an air exhaust machine, the air heat exchange core and the outside room fin type heat exchanger. The primary heat exchange is carried out on outdoor fresh air and indoor exhausted air inside the air heat exchange core when an air-conditioner operates in the refrigeration(heating) mode, 65%-70% of the cold energy (the heat) of the indoor exhausted air is recovered, the energy-saving aim is achieved, and the unit performance is improved. The inside room fin type heat exchanger and the outside room fin type heat exchanger are both installed inside a machine body, therefore, the air-conditioner system can serve as a condenser or an evaporator, is suitable for the regions and sites where a cooling tower, an air cooling outside machine and the like cannot be installed, and is high in applicability and higher in integrated energy efficiency ratio.

Description

Direct-expansion type double effect heat reclamation heat pump air-conditioning system
Technical field
The utility model belongs to energy air-conditioning technical field, is specifically related to a kind of indoor exhaust wind of utilizing and is arranged on the direct-expansion type double effect heat reclamation heat pump air-conditioning system in integrated casing by air heat exchange and outdoor heat exchanger, indoor set, off-premises station.
Background technology
In view of the urgency of current China building energy conservation, the Novel energy-saving air-conditioning system more and more is subject to people's attention.High Efficiency Thermal how to realize outdoor new wind and indoor exhaust wind is recycled into the emphasis of paying close attention to into people.
The civilian installations such as the underground civil defense engineering in city, market place builet below the ground exist because of above ground portion can not place cooling tower, air-cooled off-premises station etc., gives the problem of selecting, installing an air-conditioner and make troubles; Also exist resh air requirement, exhaust air rate larger, if room air is directly discharged not energy-conservation, the problem that if new Air Energy Recovery Device is installed, initial cost is large, efficiency is low, return period is long.In addition, the water sources such as the north do not enrich area and do not allow to arrange Water cooled air conditioners (cooling tower), and the easy frosting of outdoor unit during the air-cooled air conditioner winter operation, efficiency is low.Exploitation can be reclaimed the indoor exhaust wind energy, and indoor set and off-premises station are arranged on to same internal body, and the air-conditioning unit that is positioned over indoor use can overcome above-mentioned defect, and can improve off-premises station heat exchange air quality, improve unit performance.
Summary of the invention
The above-mentioned defect existed in order to overcome the prior art field, the purpose of this utility model is, provide a kind of direct-expansion type double effect heat reclamation heat pump air-conditioning system, the energy of recyclable indoor exhaust wind, the part by indoor exhaust wind as off-premises station heat exchange air, improve off-premises station heat exchange air quality, improve unit performance, simultaneously, indoor set, off-premises station are arranged on integrated casing inside, be placed on indoor, the occasion that is applied to place off-premises station and cooling tower.
The direct-expansion type double effect heat reclamation heat pump air-conditioning system that the utility model provides, comprise compressor, cross valve, gas-liquid separator, check valve, expansion valve, reservoir, the heat pump that indoor finned heat exchanger and outside finned heat exchanger form, compressor, cross valve, gas-liquid separator, check valve, expansion valve, reservoir, the indoor finned heat exchanger is connected by refrigerant line with the outside finned heat exchanger, it also comprises supply air system and the exhaust system be communicated with heat pump, pressure fan, air heat exchange core body and indoor finned heat exchanger form supply air system, exhaust blower, air heat exchange core body and outside finned heat exchanger form exhaust system, described exhaust blower and pressure fan are to take out flow fan, or centrifugal blower or other air conveyance devices, described indoor finned heat exchanger and outside finned heat exchanger adopt straight swollen structure coil pipe, described indoor finned heat exchanger is one or one group of heat exchanger, and described outside finned heat exchanger is one or one group of heat exchanger.
The direct-expansion type double effect heat reclamation heat pump air-conditioning system that the utility model provides, its beneficial effect is, when air conditioner refrigerating (heating) mode operation, outdoor new wind and indoor exhaust wind are carried out a heat exchange in air heat exchange core body inside, reclaim the cold (heat) of indoor exhaust wind 65%-70%, reach energy-conservation purpose, improve unit performance; Indoor finned heat exchanger and outside finned heat exchanger are installed in internal body, not only can be used as condenser but also can be used as evaporimeter, are applicable to area or occasion that cooling tower, air-cooled off-premises station etc. can not be installed, and applicability is stronger, and comprehensive energy efficiency is than higher.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model refrigeration mode structural representation;
Fig. 3 is the utility model heating mode structural representation.
In figure, mark:
1. compressor; 2. cross valve; 3. gas-liquid separator; 4. indoor finned heat exchanger; 5. outside finned heat exchanger; 6. check valve I; 7. check valve II; 8. check valve III; 9. check valve IV; 10. reservoir; 11. expansion valve; 12. exhaust blower; 13. air heat exchange core body; 14. pressure fan; 15. indoor exhaust wind; 16. outdoor air draft; 17. outdoor new wind; 18. system air-supply.
The specific embodiment
With reference to the accompanying drawings, in conjunction with two embodiment, the direct-expansion type double effect heat reclamation heat pump air-conditioning system that the utility model is provided is described in detail.
Embodiment mono-
See figures.1.and.2, the direct-expansion type double effect heat reclamation heat pump air-conditioning system of the present embodiment, comprise compressor 1, cross valve 2, gas-liquid separator 3, indoor finned heat exchanger 4, outside finned heat exchanger 5, check valve I-IV 6-9, the heat pump that reservoir 10 and expansion valve 11 form, be provided with gas-liquid separator 3 between described compressor 1 gas returning port and cross valve 2, described indoor finned heat exchanger 4 and outside finned heat exchanger 5 are communicated with compressor 1 gas outlet by cross valve 2 respectively, 5 of indoor finned heat exchanger 4 and outside finned heat exchangers pass through refrigeration, heating the exchange pipeline connects, described refrigeration, heat the exchange pipeline and comprise the branch road I be composed in series by check valve I 6 and check valve II 7, and the branch road II be composed in series by check valve III 8 and check valve IV 9, described branch road I is in parallel with the branch road II, described refrigeration, heat the exchange pipeline also comprise be serially connected between branch road I and branch road II check valve I 6 is in parallel with check valve III 8, reservoir 10 and expansion valve 11 that check valve II 7 is in parallel with check valve IV 9, it also comprises supply air system and the exhaust system be communicated with heat pump, exhaust blower 12, air heat exchange core body 13 form exhaust system with outside finned heat exchanger 5, and pressure fan 14, air heat exchange core body 13 form supply air system with indoor finned heat exchanger 4, described exhaust blower 12 and pressure fan 14 are to take out flow fan, or centrifugal blower or other air conveyance devices, described indoor finned heat exchanger 4 and outside finned heat exchanger 5 adopt straight swollen structure coil pipe, described indoor finned heat exchanger 4 is one or one group of heat exchanger, and described outside finned heat exchanger 5 is one or one group of heat exchanger.
See figures.1.and.2, Fig. 1 direction of arrow is wind direction, Fig. 2 direction of arrow is refrigerant flow direction, when direct-expansion type double effect heat reclamation heat pump air-conditioning system refrigerating operaton, start compressor 1, exhaust blower 12 and pressure fan 14, cold-producing medium is from compressor 1 is discharged, through cross valve 2 enter outside finned heat exchanger 5(now outside finned heat exchanger 5 as condenser) be condensed into liquid, the refrigeration of flowing through again, heat the exchange pipeline enter indoor finned heat exchanger 4(now indoor finned heat exchanger 4 as evaporimeter) evaporation endothermic, refrigeration, enter gas-liquid separator 3 separation through cross valve 2 after becoming liquid-vapor mixture, enter again compressor 1.
Now, indoor temperature is well below outdoor temperature, indoor exhaust wind 15 is carried to outdoor air draft 16 through exhaust blower 12, outdoor new wind 17 is carried to system air-supply 18 through pressure fan 14, through air heat exchange core body 13, indoor exhaust wind 15 is carried out a heat exchange with outdoor new wind 17, recovery indoor exhaust wind 15(65-70) cold of %, indoor exhaust wind 15 is after 13 heat exchanges of air heat exchange core body, temperature rises, but indoor exhaust wind 15 temperature are also lower than outdoor temperature after a heat exchange, by indoor exhaust wind 15 be delivered to outside finned heat exchanger 5 again absorb heat after heating up drain into outdoor.Because of indoor exhaust wind 15 temperature after a heat exchange, also lower than outdoor air draft 16 temperature, so that condensation temperature is now carried out heat exchange than direct utilization outdoor air is low, the refrigeration system Energy Efficiency Ratio will be higher than directly using outdoor air carry out heat exchange.
Meanwhile, outdoor new wind 17 is after 13 heat exchanges of air heat exchange core body, temperature descends, but outdoor new wind 17 temperature can not meet the room temperature lowering requirement after a heat exchange, send into indoor functional areas after outdoor new wind 17 is delivered to the 4 heat release coolings of indoor finned heat exchanger, reach the refrigeration purpose.Because reclaim indoor exhaust wind 15(65-70 after a heat exchange) cold of %, outdoor new wind 17 temperature descend, and have reached energy-conservation purpose.
Embodiment bis-
With reference to Fig. 1 and Fig. 3, the direct-expansion type double effect heat reclamation heat pump air-conditioning system of the present embodiment, comprise compressor 1, cross valve 2, gas-liquid separator 3, indoor finned heat exchanger 4, outside finned heat exchanger 5, check valve I-IV 6-9, the heat pump that reservoir 10 and expansion valve 11 form, be provided with gas-liquid separator 3 between described compressor 1 gas returning port and cross valve 2, described indoor finned heat exchanger 4 and outside finned heat exchanger 5 are communicated with compressor 1 gas outlet by cross valve 2 respectively, 5 of indoor finned heat exchanger 4 and outside finned heat exchangers pass through refrigeration, heating the exchange pipeline connects, described refrigeration, heat the exchange pipeline and comprise the branch road I be composed in series by check valve I 6 and check valve II 7, and the branch road II be composed in series by check valve III 8 and check valve IV 9, described branch road I is in parallel with the branch road II, described refrigeration, heat the exchange pipeline also comprise be serially connected between branch road I and branch road II check valve I 6 is in parallel with check valve III 8, reservoir 10 and expansion valve 11 that check valve II 7 is in parallel with check valve IV 9, it also comprises supply air system and the exhaust system be communicated with heat pump, exhaust blower 12, air heat exchange core body 13 form exhaust system with outside finned heat exchanger 5, and pressure fan 14, air heat exchange core body 13 form supply air system with indoor finned heat exchanger 4, described exhaust blower 12 and pressure fan 14 are to take out flow fan, or centrifugal blower or other air conveyance devices, described indoor finned heat exchanger 4 and outside finned heat exchanger 5 adopt straight swollen structure coil pipe, described indoor finned heat exchanger 4 is one or one group of heat exchanger, and described outside finned heat exchanger 5 is one or one group of heat exchanger.
With reference to Fig. 1 and Fig. 3, Fig. 1 direction of arrow is wind direction, Fig. 2 direction of arrow is refrigerant flow direction, when direct-expansion type double effect heat reclamation heat pump air-conditioning system heating operation, start compressor 1, exhaust blower 12 and pressure fan 14, cold-producing medium is from compressor 1 is discharged, through cross valve 2 enter indoor finned heat exchanger 4(now indoor finned heat exchanger 4 as condenser) be condensed into liquid after, the refrigeration of flowing through again, heat the exchange pipeline enter outside finned heat exchanger 5(now outside finned heat exchanger 5 as evaporimeter) evaporation endothermic, enter gas-liquid separator 3 separation by cross valve 2 after becoming gas, enter again compressor 1.
Now, indoor temperature is far away higher than outdoor temperature, indoor exhaust wind 15 is carried to outdoor air draft 16 through exhaust blower 12, outdoor new wind 17 is carried to system air-supply 18 through pressure fan 14, through air heat exchange core body 13, indoor exhaust wind 15 is carried out a heat exchange with outdoor new wind 17, recovery indoor exhaust wind 15(65-70) heat of %, indoor exhaust wind 15 is after 13 heat exchanges of air heat exchange core body, temperature descends, but indoor exhaust wind 15 temperature are also higher than outdoor temperature after a heat exchange, indoor exhaust wind 15 is delivered to outside finned heat exchanger 5 to be drained into after heat release cooling outdoor again.Because of indoor exhaust wind 15 temperature after a heat exchange also higher than outdoor air draft 16 temperature, so it is high that evaporating temperature is now carried out heat exchange than direct utilization outdoor air, improve evaporating temperature, the heating Energy Efficiency Ratio will be higher than directly using outdoor air carry out heat exchange and be difficult for frosting.
Meanwhile, outdoor new wind 17 is after 13 heat exchanges of air heat exchange core body, temperature rises, but outdoor new wind 17 temperature can not meet the heating of house requirement after a heat exchange, outdoor new wind 17 is delivered to after finned heat exchanger 4 heat absorptions in indoor heat up and sends into indoor functional areas, reach and heat purpose.Because reclaim indoor exhaust wind 15(65-70 after a heat exchange) heat of %, outdoor new wind 17 temperature rise, and have reached energy-conservation purpose.

Claims (4)

1. a direct-expansion type double effect heat reclamation heat pump air-conditioning system, comprise compressor, cross valve, gas-liquid separator, check valve, expansion valve, reservoir, the heat pump that indoor finned heat exchanger and outside finned heat exchanger form, compressor, cross valve, gas-liquid separator, check valve, expansion valve, reservoir, the indoor finned heat exchanger is connected by refrigerant line with the outside finned heat exchanger, it is characterized in that: it also comprises supply air system and the exhaust system be communicated with heat pump, pressure fan, air heat exchange core body and indoor finned heat exchanger form supply air system, exhaust blower, air heat exchange core body and outside finned heat exchanger form exhaust system.
2. direct-expansion type double effect heat reclamation heat pump air-conditioning system according to claim 1, it is characterized in that: described exhaust blower and pressure fan are to take out flow fan, or centrifugal blower or other air conveyance devices.
3. direct-expansion type double effect heat reclamation heat pump air-conditioning system according to claim 1, is characterized in that: described indoor finned heat exchanger and the straight swollen structure coil pipe of outside finned heat exchanger employing.
4. direct-expansion type double effect heat reclamation heat pump air-conditioning system according to claim 1, it is characterized in that: described indoor finned heat exchanger is one or one group of heat exchanger, described outside finned heat exchanger is one or one group of heat exchanger.
CN2013202784688U 2013-05-21 2013-05-21 Direct-expansion type double-effect heat recovery heat pump air-conditioner system Active CN203336708U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267339A (en) * 2013-05-21 2013-08-28 青岛宏宇环保空调设备有限公司 Direct-expansion double-effect heat recovery heat pump air-conditioning system and application method thereof
CN105716177A (en) * 2016-03-02 2016-06-29 广州市兆晶电子科技有限公司 Fresh air heat pump and operation control method thereof
CN108758902A (en) * 2018-04-02 2018-11-06 南京天加环境科技有限公司 A kind of straight swollen air conditioner box system using digital variable volume heat recovery technology

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267339A (en) * 2013-05-21 2013-08-28 青岛宏宇环保空调设备有限公司 Direct-expansion double-effect heat recovery heat pump air-conditioning system and application method thereof
CN105716177A (en) * 2016-03-02 2016-06-29 广州市兆晶电子科技有限公司 Fresh air heat pump and operation control method thereof
CN105716177B (en) * 2016-03-02 2018-11-27 广州市兆晶电子科技有限公司 Fresh air heat pump and its progress control method
CN108758902A (en) * 2018-04-02 2018-11-06 南京天加环境科技有限公司 A kind of straight swollen air conditioner box system using digital variable volume heat recovery technology

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