CN103267339A - Direct-expansion double-effect heat recovery heat pump air-conditioning system and application method thereof - Google Patents
Direct-expansion double-effect heat recovery heat pump air-conditioning system and application method thereof Download PDFInfo
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- CN103267339A CN103267339A CN2013101892389A CN201310189238A CN103267339A CN 103267339 A CN103267339 A CN 103267339A CN 2013101892389 A CN2013101892389 A CN 2013101892389A CN 201310189238 A CN201310189238 A CN 201310189238A CN 103267339 A CN103267339 A CN 103267339A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat 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
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Abstract
The invention discloses a direct-expansion double-effect heat recovery heat pump air-conditioning system and an application method thereof. The direct-expansion double-effect heat recovery heat pump air-conditioning system comprises a heat pump system which comprises a compressor, a four-way valve, a gas-liquid separator, one-way valves, an expansion valve, a reservoir, an indoor side fin heat exchanger and an outdoor side fin heat exchanger. The direct-expansion double-effect heat recovery heat pump air-conditioning system further comprises an air supply system which consists of an air feeder, an air heat exchange core and the indoor side fin heat exchanger and an air-exhaust system which consists of an exhaust fan, the air heat exchange core and the outdoor side fin heat exchanger. During operations of an air conditioning refrigeration (heating) mode, outdoor fresh air and indoor exhaust air are subjected to primary heat exchange inside the air heat exchange core to recycle 65%-70% cold energy (heat energy) of the indoor exhaust air, so that energy saving is achieved and unit performance is improved; the indoor side fin heat exchanger and the outdoor side fin heat exchanger are both arranged inside a machine body and can serve as condensers as well as evaporators, so that the direct-expansion double-effect heat recovery heat pump air-conditioning system is applicable to regions or occasions where cooling towers or air cooling outdoor unit cannot be arranged, and accordingly the applicability is better and the comprehensive energy efficiency ratio is higher.
Description
Technical field
The invention belongs to energy air-conditioning technical field, be specifically related to a kind of indoor exhaust wind of utilizing and be installed in direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system and using method thereof in the 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-conserving air-conditioning system more and more is subject to people's attention.The efficient recuperation of heat that how to realize outdoor new wind and indoor exhaust wind becomes the emphasis that people pay close attention to.
Civilian installations such as the underground civil air defense constructions and installations 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 for use, installing an air-conditioner and make troubles; Also exist resh air requirement, exhaust air rate bigger, if room air is directly discharged not energy-conservation, if the new Air Energy Recovery Device of installation, the problem that initial cost is big, efficient is low, grow return period.In addition, water sources such as the north do not enrich the 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, efficient is low.Exploitation can be reclaimed the indoor exhaust wind energy, and indoor set and off-premises station are installed in same internal body, and the air-conditioning unit that is positioned over indoor use can overcome above-mentioned defective, and can improve off-premises station heat exchange air quality, improve unit performance.
Summary of the invention
In order to overcome the above-mentioned defective that the prior art field exists, the objective of the invention is to, a kind of direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system and using method thereof are provided, and the energy of recyclable indoor exhaust wind uses indoor exhaust wind as off-premises station heat exchange part of air, improve off-premises station heat exchange air quality, improve unit performance, simultaneously, indoor set, off-premises station are installed in integrated casing inside, be placed on indoor, the occasion that is applied to place off-premises station and cooling tower.
Direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system provided by the invention and using method thereof, 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 are formed, 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 that is communicated with heat pump, pressure fan, air heat exchange core body and indoor finned heat exchanger are formed supply air system, exhaust blower, air heat exchange core body and outside finned heat exchanger are formed 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.
Direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system, concrete using method is as follows: the Leng ∕ heating mode change-over switch processed of described direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system is controlled this system and is freezed or heat, when Leng ∕ heating mode change-over switch processed is set at refrigeration or heats mode of operation, compressor is opened, cold-producing medium is discharged by the refrigeration that sets or is heated mode of operation from compressor outlet and circulates in heat pump, meanwhile, exhaust blower and pressure fan are opened, indoor exhaust wind is carried to the air heat exchange core body by exhaust blower, outdoor new wind is also carried to the air heat exchange core body by pressure fan, indoor exhaust wind and outdoor new wind are delivered to the outside finned heat exchanger of heat pump and indoor finned heat exchanger along exhaust system and supply air system respectively and freeze or heat after the air heat exchange core body carries out a heat exchange.
Direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system provided by the invention and using method thereof, 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, suitable area or the occasion that cooling tower, air-cooled off-premises station etc. can not be installed, and applicability is stronger, and comprehensive Energy Efficiency Ratio is higher.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is refrigeration mode structural representation of the present invention;
Fig. 3 is heating mode structural representation of the present invention.
Mark among the figure:
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's air-supply.
The specific embodiment
With reference to the accompanying drawings, in conjunction with two embodiment, direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system provided by the invention and using method thereof are described in detail.
Embodiment one
See figures.1.and.2, the direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system of 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 are formed, be provided with gas-liquid separator 3 between described compressor 1 return-air mouth and the 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 that is composed in series by check valve I 6 and check valve II 7, and the branch road II that is 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 the 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 and check valve IV 9 are in parallel; It also comprises supply air system and the exhaust system that is communicated with heat pump, exhaust blower 12, air heat exchange core body 13 are formed exhaust system with outside finned heat exchanger 5, and pressure fan 14, air heat exchange core body 13 are formed 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 economic benefits and social benefits heat recovery heat pump air conditioner system refrigerating operaton, start compressor 1, exhaust blower 12 and pressure fan 14, after cold-producing medium is discharged from compressor 1, through cross valve 2 inlet chambers outsides finned heat exchanger 5(outside finned heat exchanger 5 this moment as condenser) be condensed into liquid, the refrigeration of flowing through again, heat the inboard finned heat exchanger 4(of exchange pipeline inlet chamber indoor finned heat exchanger 4 this moment as evaporimeter) the evaporation heat absorption, refrigeration, enter gas-liquid separator 3 separation through cross valve 2 after becoming liquid-vapor mixture, enter compressor 1 again.
At this moment, 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's 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 %, after 13 heat exchanges of indoor exhaust wind 15 process air heat exchange core bodys, temperature rises, but also be lower than outdoor temperature through indoor exhaust wind 15 temperature after the heat exchange, with indoor exhaust wind 15 be delivered to outside finned heat exchanger 5 absorb heat again drain into after heating up outdoor.Because also being lower than outdoor air draft 16 temperature through indoor exhaust wind 15 temperature after the heat exchange, so that the condensation temperature of this moment is carried out heat exchange than direct utilization outdoor air is low, the refrigeration system Energy Efficiency Ratio will be higher than direct utilization outdoor air and carry out heat exchange.
Meanwhile, after 13 heat exchanges of outdoor new wind 17 process air heat exchange core bodys, temperature descends, but can not satisfy the room temperature lowering requirement through outdoor new wind 17 temperature after the heat exchange, send into indoor functional areas after outdoor new wind 17 is delivered to indoor finned heat exchanger 4 heat releases coolings, reach the refrigeration purpose.Because of through reclaiming indoor exhaust wind 15(65-70 after the heat exchange) cold of %, outdoor new wind 17 temperature descend, and have reached energy-conservation purpose.
Embodiment two
With reference to Fig. 1 and Fig. 3, the direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system of 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 are formed, be provided with gas-liquid separator 3 between described compressor 1 return-air mouth and the 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 that is composed in series by check valve I 6 and check valve II 7, and the branch road II that is 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 the 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 and check valve IV 9 are in parallel; It also comprises supply air system and the exhaust system that is communicated with heat pump, exhaust blower 12, air heat exchange core body 13 are formed exhaust system with outside finned heat exchanger 5, and pressure fan 14, air heat exchange core body 13 are formed 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 economic benefits and social benefits heat recovery heat pump air conditioner system heating operation, start compressor 1, exhaust blower 12 and pressure fan 14, after cold-producing medium is discharged from compressor 1, through the inboard finned heat exchanger 4(of cross valve 2 inlet chambers indoor finned heat exchanger 4 this moment as condenser) be condensed into liquid after, the refrigeration of flowing through again, heat exchange pipeline inlet chamber outside finned heat exchanger 5(outside finned heat exchanger 5 this moment as evaporimeter) the evaporation heat absorption, enter gas-liquid separator 3 separation by cross valve 2 after becoming gas, enter compressor 1 again.
At this moment, indoor temperature is higher than outdoor temperature far away, indoor exhaust wind 15 is carried to outdoor air draft 16 through exhaust blower 12, outdoor new wind 17 is carried to system's 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 %, after 13 heat exchanges of indoor exhaust wind 15 process air heat exchange core bodys, temperature descends, but also be higher than outdoor temperature through indoor exhaust wind 15 temperature after the heat exchange, indoor exhaust wind 15 be delivered to outside finned heat exchanger 5 drain into after the heat release cooling outdoor again.Because also being higher than outdoor air draft 16 temperature through indoor exhaust wind 15 temperature after the heat exchange, so the evaporating temperature of this moment is carried out the heat exchange height than direct utilization outdoor air, improve evaporating temperature, the heating Energy Efficiency Ratio will be higher than direct utilization outdoor air and carry out heat exchange and be difficult for frosting.
Meanwhile, after 13 heat exchanges of outdoor new wind 17 process air heat exchange core bodys, temperature rises, but can not satisfy the heating of house requirement through outdoor new wind 17 temperature after the heat exchange, outdoor new wind 17 is delivered to sends into indoor functional areas after indoor finned heat exchanger 4 heat absorption heats up, reach and heat purpose.Because of through reclaiming indoor exhaust wind 15(65-70 after the heat exchange) heat of %, outdoor new wind 17 temperature rise, and have reached energy-conservation purpose.
Claims (5)
1. direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner 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 are formed, 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 that is communicated with heat pump, pressure fan, air heat exchange core body and indoor finned heat exchanger are formed supply air system, exhaust blower, air heat exchange core body and outside finned heat exchanger are formed exhaust system.
2. direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner according to claim 1 system, 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 economic benefits and social benefits heat recovery heat pump air conditioner according to claim 1 system, it is characterized in that: described indoor finned heat exchanger and outside finned heat exchanger adopt straight swollen structure coil pipe.
4. direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner according to claim 1 system, 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.
5. the using method of a direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system, it is characterized in that: described concrete grammar is as follows: the Leng ∕ heating mode change-over switch processed of described direct-expansion type economic benefits and social benefits heat recovery heat pump air conditioner system is controlled this system and is freezed or heat, when Leng ∕ heating mode change-over switch processed is set at refrigeration or heats mode of operation, compressor is opened, cold-producing medium is discharged by the refrigeration that sets or is heated mode of operation from compressor outlet and circulates in heat pump, meanwhile, exhaust blower and pressure fan are opened, indoor exhaust wind is carried to the air heat exchange core body by exhaust blower, outdoor new wind is also carried to the air heat exchange core body by pressure fan, indoor exhaust wind and outdoor new wind are delivered to the outside finned heat exchanger of heat pump and indoor finned heat exchanger along exhaust system and supply air system respectively and freeze or heat after the air heat exchange core body carries out a heat exchange.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106605107A (en) * | 2014-09-25 | 2017-04-26 | 松下知识产权经营株式会社 | Heat exchanger ventilator |
| CN107687688A (en) * | 2017-10-11 | 2018-02-13 | 宁波奈兰环境系统有限公司 | Fresh air refrigerating all-in-one |
| CN107702250A (en) * | 2017-10-11 | 2018-02-16 | 宁波奈兰环境系统有限公司 | Fresh air heat pump all-in-one |
| CZ307231B6 (en) * | 2017-02-14 | 2018-04-11 | Petr Morávek | A multi-zone air-conditioning unit |
| CN110726188A (en) * | 2019-10-21 | 2020-01-24 | 珠海格力电器股份有限公司 | Air treatment equipment and control method, device and equipment thereof |
| CN111140976A (en) * | 2020-01-17 | 2020-05-12 | 珠海格力电器股份有限公司 | Fresh air conditioning system and control method thereof |
| CN113847655A (en) * | 2021-09-23 | 2021-12-28 | 珠海格力电器股份有限公司 | Movable fresh air conditioner and control method |
| CN114087813A (en) * | 2021-11-17 | 2022-02-25 | 珠海格力电器股份有限公司 | Winter defrosting device for clean operating room direct expansion unit and control method of winter defrosting device |
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| CN106605107A (en) * | 2014-09-25 | 2017-04-26 | 松下知识产权经营株式会社 | Heat exchanger ventilator |
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| CZ307231B6 (en) * | 2017-02-14 | 2018-04-11 | Petr Morávek | A multi-zone air-conditioning unit |
| CN107687688A (en) * | 2017-10-11 | 2018-02-13 | 宁波奈兰环境系统有限公司 | Fresh air refrigerating all-in-one |
| CN107702250A (en) * | 2017-10-11 | 2018-02-16 | 宁波奈兰环境系统有限公司 | Fresh air heat pump all-in-one |
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| CN111140976A (en) * | 2020-01-17 | 2020-05-12 | 珠海格力电器股份有限公司 | Fresh air conditioning system and control method thereof |
| CN113847655A (en) * | 2021-09-23 | 2021-12-28 | 珠海格力电器股份有限公司 | Movable fresh air conditioner and control method |
| CN113847655B (en) * | 2021-09-23 | 2022-07-15 | 珠海格力电器股份有限公司 | Movable fresh air conditioner and control method |
| CN114087813A (en) * | 2021-11-17 | 2022-02-25 | 珠海格力电器股份有限公司 | Winter defrosting device for clean operating room direct expansion unit and control method of winter defrosting device |
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Application publication date: 20130828 |