CN106705494A - Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing - Google Patents

Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing Download PDF

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Publication number
CN106705494A
CN106705494A CN201710135139.0A CN201710135139A CN106705494A CN 106705494 A CN106705494 A CN 106705494A CN 201710135139 A CN201710135139 A CN 201710135139A CN 106705494 A CN106705494 A CN 106705494A
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CN
China
Prior art keywords
heat exchanger
side heat
air
gas
air side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710135139.0A
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Chinese (zh)
Inventor
蔡浩标
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Mega Power New Energy Co Ltd
Original Assignee
Guangdong Mega Power New Energy Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Mega Power New Energy Co Ltd filed Critical Guangdong Mega Power New Energy Co Ltd
Priority to CN201710135139.0A priority Critical patent/CN106705494A/en
Publication of CN106705494A publication Critical patent/CN106705494A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • 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
    • F24F13/22Means for preventing condensation or evacuating condensate
    • 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
    • F25B40/00Subcoolers, desuperheaters or superheaters
    • F25B40/02Subcoolers
    • 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
    • F25B41/26Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
    • 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
    • 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
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F2013/221Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
    • 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
    • F25B2313/00Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13Economisers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention discloses an air source heat pump energy conservation system with a function of preventing an air side heat exchanger from freezing, belongs to the technical field of low-temperature heat pump air conditioners, and aims at providing a low-temperature heat pump air conditioner heat exchange system which is reasonable and reliable in design and capable of effectively solving the problem that expansion ice appears in a water collection plate. The energy conservation system specifically comprises a compressor, a four-way valve, a water side heat exchanger, a gas-liquid separator and the air side heat exchanger, and further comprises a supercooling pipe and an economizer. An exhaust port, a gas suction opening and a middle gas supplementation opening of the compressor are connected with the four-way valve, an outlet of the gas-liquid separator and the economizer correspondingly. The other three pipe openings of the four-way valve are connected with a gas inlet of the water side heat exchanger, an inlet of the gas-liquid separator and the air side heat exchanger correspondingly. The whole supercooling pipe is closely installed at the bottom end of the water collection plate. The effect of preventing the water collection plate from freezing is better, generation of frost at the bottom of a fin type heat exchanger is effectively restrained, meanwhile, the supercooling degree of a heat pump system is increased, the heat exchange efficiency is improved, and therefore great economic benefits can be generated.

Description

It is a kind of with the air source heat pumps energy-saving system for preventing air side heat exchanger icing function
Technical field
Present invention relates particularly to a kind of with the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, belong to Low-temperature heat pump air conditioner technical field.
Background technology
At present, the drip tray of existing low-temperature heat pump air conditioner heat-exchange system, typically all without icing protection, is do not have It is provided for preventing its drip tray inner icing or effectively slows down the anti-frozen structure of its icing rate, can so causes water receiving There is swollen ice phenomenon in disk inside, wherein, particularly under some severe rugged environments, for example relatively low north of temperature, existing low temperature During heat pump air conditioner heat-exchange system heating operation, can normally be used because the icing of its drip tray has a strong impact on it.Therefore, now along with How continuing to develop for social science and technology, improve to existing low-temperature heat pump air conditioner heat-exchange system, makes it have certain Anti- swollen ice function, as researcher's urgent problem.
In the prior art, mostly using being improved in drip tray one end, to reach the purpose for preventing freezing, such as middle promulgated by the State Council A kind of bright patent, CN204718076, air conditioning evaporator water-containing plate structure of air switch, by drip tray improvement in itself, is realized anti- The purpose for only freezing, but the anti-freeze effect of this structure is limited, and finned heat exchanger bottom frost can not be suppressed Produce.
The content of the invention
It is therefore an object of the present invention to provide a kind of reliability reasonable in design, can effectively solve drip tray inside and swollen ice occur Low-temperature heat pump air conditioner heat-exchange system.
To achieve the above object, energy conserving system of the present invention specifically includes compressor, four-way valve, water-side heat, gas-liquid point From device, air side heat exchanger, the air source heat pumps energy-saving system also include supercooling tube, economizer, the exhaust outlet of the compressor, One mouth of pipe of air entry and intermediate fill gas mouth a mouth of pipe, gas-liquid separator outlet and economizer respectively with four-way valve connects Connect;The other three mouth of pipe of the four-way valve connects with water-side heat air inlet, gas-liquid separator import, air side heat exchanger respectively Connect, the water-side heat outlet is connected with supercooling tube import, refrigeration branch outlet, defrosting branch way outlet respectively, the economy The device the other three mouth of pipe is connected with supercooling tube outlet, the import of heat pump branch road, tonifying Qi branch way outlet respectively, and the air side heat exchanger is another One end is connected with heat pump branch way outlet, refrigeration branch entrance respectively, and supercooling tube is integrally adjacent to installed in the bottom of drip tray.
Further, the air source heat pumps energy-saving system also includes the fan installed in air side heat exchanger side.
Further, the heat pump branch road includes the second check valve, the first filter, second throttling device.
Further, the tonifying Qi branch road includes the first check valve, the first magnetic valve, first throttle device.
Further, the refrigeration branch includes the second filter, the 3rd check valve, the 3rd throttling arrangement.
Further, the defrosting branch road includes the second magnetic valve, the 4th throttling arrangement.
The beneficial effects of the present invention are:It is of the invention with the air source heat pump section for preventing air side heat exchanger icing function Energy system, by the improvement for designing, with good icing protection, this prevents the effect of drip tray icing compared to existing technology More preferably, another aspect of the present invention also effectively suppresses the generation of finned heat exchanger bottom frost to fruit, while increased heat pump Degree of supercooling, improve heat exchange efficiency so as to produce huge economic benefit.
Brief description of the drawings
Fig. 1 is a kind of entirety with the air source heat pumps energy-saving system for preventing air side heat exchanger icing function of the invention Structural representation;
Fig. 2 is a kind of outside signal with the air source heat pumps energy-saving system for preventing air side heat exchanger icing function of the invention Figure.
Specific embodiment
Specific embodiment of the invention is illustrated below in conjunction with the accompanying drawings:
As shown in figure 1, the low-temperature heat pump air conditioner heat-exchange system described in the present embodiment, it includes compressor 1, four-way valve 2, water side Heat exchanger 3, gas-liquid separator 4, air side heat exchanger 5, supercooling tube 6, economizer 7, the first filter 8, the first check valve 9, first Magnetic valve 10, first throttle device 11, the second check valve 12, second throttling device 13, the second filter 14, the 3rd check valve 15th, the 3rd throttling arrangement 16, the second magnetic valve 17, the 4th throttling arrangement 18, fan 19.Wherein, compressor 1 described in the present embodiment Exhaust outlet, air entry and intermediate fill gas mouth is exported with four-way valve 2, gas-liquid separator 4 respectively and economizer 7 is connected;Described four The other three mouth of pipe of port valve 2 is connected with the air inlet of water-side heat 3, the import of gas-liquid separator 4, air side heat exchanger 5 respectively, institute State water-side heat 3 export exported with the import of supercooling tube 6, refrigeration branch 22 respectively, the branch road 23 that defrosts outlet be connected, the economy The other three mouth of pipe of device 7 is exported with supercooling tube 6 respectively, the import of heat pump branch road 21, tonifying Qi branch road 20 outlet be connected, the wind side is changed The other end of hot device 5 is exported with heat pump branch road 21 respectively, the entrance of refrigeration branch 22 is connected.Overall being adjacent to completely of supercooling tube 6 is arranged on The bottom of drip tray 101.Above-mentioned heat pump branch road 21 includes the second check valve 12, the first filter 8, second throttling device 13;Mend Gas branch road 20 includes the first check valve 9, the first magnetic valve 10, first throttle device 11;Refrigeration branch 22 includes the second filter 14th, the 3rd check valve 15, the 3rd throttling arrangement 16;Defrosting branch road 23 includes the second magnetic valve 17, the 4th throttling arrangement 18.
Fig. 2 is the outside schematic diagram of air source heat pumps energy-saving system, and the work of above-mentioned low-temperature heat pump air conditioner heat-exchange system is former Manage and be:During cooling operation, as shown in the dotted arrow in Fig. 1, by the compression of compressor 1, the gaseous refrigerant of low-temp low-pressure Gaseous refrigerant as HTHP, from after the discharge of the discharge duct of compressor 1, air side heat exchanger 5 is entered by four-way valve 2; Fan 19 is operated, and heat is taken away so that refrigerant is condensed, and becomes liquid refrigerant.By the condensed high pressure of condenser Liquid refrigerant, by volumetric expansion after refrigeration branch 22, state change becomes low temperature, the liquid refrigerant of low pressure and portion Divide gaseous refrigerant.The gas liquid mixture of refrigerant flows into water-side heat 3 through pipeline, and refrigerant expands steaming in heat exchanger Hair, absorbs the heat in water, and gaseous state, refrigerating medium are become after evaporation endothermic(Water)Warm step-down, water pump is constantly operated, and cold is continuous Pump is distributed to end-equipment, then by cold.Finally, by the gaseous refrigerant of expansion evaporation by four-way valve 2 and gas-liquid Compressor, then second compression are entered by aspirating air pipe after separator 4, constantly circulation.During heating operation, the solid line arrow in such as Fig. 1 Shown in head, by the compression of compressor 1, the gaseous refrigerant of low-temp low-pressure turns into the gaseous refrigerant of HTHP, compressed After machine discharge, water-side heat 3 is entered by four-way valve 2.Client is brought by the heat of refrigerant using water, while refrigerant quilt It is condensed into the liquid of high pressure.By the condensed high pressure liquid refrigerant of condenser, into supercooling tube 6, by economizer 7, mend Gas branch road 20, heat pump branch road 21, the refrigerant volume expansion of liquid, state change become the liquid refrigerant of low temperature, low pressure With part gaseous refrigerant.The heat of absorption air is evaporated in air side heat exchanger 5 after piping, becomes gaseous refrigerant. Finally, gaseous refrigerant is by aspirating air pipe after four-way valve 2 and gas-liquid separator 4 by entering compressor, then second compression, constantly Circulation.During defrosting operating, as shown in the dotted arrow in Fig. 1, by the compression of compressor 1, the gaseous refrigerant of low-temp low-pressure Gaseous refrigerant as HTHP, from after the discharge of the discharge duct of compressor 1, air side heat exchanger 5 is entered by four-way valve 2; Fan 19 is inoperative, and at this moment high temperature and high pressure electrical gaseous refrigerant is defrosted by finned heat exchanger 5, becomes liquid refrigeration Agent.By the condensed high pressure liquid refrigerant of condenser, by volumetric expansion after the branch road 23 that defrosts, state change becomes Low temperature, the liquid refrigerant of low pressure and part gaseous refrigerant.The gas liquid mixture of refrigerant flows into water-side heat through pipeline 3, refrigerant expands evaporation in heat exchanger, absorbs the heat in water, and gaseous state, refrigerating medium are become after evaporation endothermic(Water)Temperature becomes Low, water pump is constantly operated, and the continuous pump of cold is distributed to end-equipment, then by cold.Finally, by the gas of expansion evaporation State refrigerant is constantly circulated by entering compressor, then second compression by aspirating air pipe after four-way valve 2 and gas-liquid separator 4.
After using above scheme, compared to existing technology, on the one hand the present invention solves water receiving by setting up supercooling tube 6 The ice formation issues of disk 101, on the other hand also effectively suppress the generation of finned heat exchanger bottom frost, while increased heat pump Degree of supercooling, improve heat exchange efficiency so as to produce huge economic benefit, be suitable for popularization and application.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications Should be regarded as protection scope of the present invention.

Claims (6)

1. a kind of with the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, including compressor, four-way valve, water Side heat exchanger, gas-liquid separator, air side heat exchanger, it is characterised in that the air source heat pumps energy-saving system also include supercooling tube, Economizer, the exhaust outlet of the compressor, air entry and intermediate fill gas mouth respectively with the mouth of pipe, a gas-liquid separator of four-way valve One mouth of pipe of outlet and economizer is connected;The other three mouth of pipe of the four-way valve respectively with water-side heat air inlet, gas Liquid/gas separator import, air side heat exchanger connection, water-side heat outlet respectively with supercooling tube import, refrigeration branch outlet, Defrosting branch way outlet connection, the economizer the other three mouth of pipe respectively with supercooling tube outlet, the import of heat pump branch road, tonifying Qi branch road Outlet connection, the air side heat exchanger other end is connected with heat pump branch way outlet, refrigeration branch entrance respectively, and supercooling tube is integrally pasted The tight bottom installed in drip tray.
2. it is as claimed in claim 1 that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, its feature It is that the air source heat pumps energy-saving system also includes the fan installed in air side heat exchanger side.
3. it is as claimed in claim 1 that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, its feature It is that the heat pump branch road includes the second check valve, the first filter, second throttling device.
4. it is as claimed in claim 1 that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, its feature It is that the tonifying Qi branch road includes the first check valve, the first magnetic valve, first throttle device.
5. it is as claimed in claim 1 that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, its feature It is that the refrigeration branch includes the second filter, the 3rd check valve, the 3rd throttling arrangement.
6. it is as claimed in claim 1 that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function, its feature It is that the defrosting branch road includes the second magnetic valve, the 4th throttling arrangement.
CN201710135139.0A 2017-03-08 2017-03-08 Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing Pending CN106705494A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108224841A (en) * 2018-02-10 2018-06-29 湖南埃瓦新能源科技有限公司 A kind of heat pump system with drip tray ice-melt pipeline
CN108444138A (en) * 2018-04-17 2018-08-24 山东美琳达再生能源开发有限公司 A kind of Two-stage Compression low-temperature air source heat pump unit and method with refrigerating function
CN108954980A (en) * 2018-06-21 2018-12-07 深圳市派沃新能源科技股份有限公司 A kind of finned evaporator, heat pump system and control method
CN112629084A (en) * 2020-12-22 2021-04-09 广东美格动力新能源有限公司 Defrosting operation determination method and defrosting system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101033870A (en) * 2006-03-10 2007-09-12 叶可 Standard air-conditioning
CN102721240A (en) * 2012-06-13 2012-10-10 广东澳信热泵空调有限公司 Low-temperature heat pump air conditioner heat exchanging system with anti-icing function
CN202521848U (en) * 2011-07-28 2012-11-07 广东芬尼克兹节能设备有限公司 Air source heat pump water heater with supercooling copper pipe
CN202547191U (en) * 2012-04-27 2012-11-21 田仕银 Low-temperature and high-efficiency air source heat pump water heater
CN202675719U (en) * 2012-06-07 2013-01-16 四川同达博尔置业有限公司 Air-cooled heat pump air conditioner
CN203837328U (en) * 2014-03-06 2014-09-17 广东欧科空调制冷有限公司 Air-cooled heat pump unit
CN206626854U (en) * 2017-03-08 2017-11-10 广东美格动力新能源有限公司 It is a kind of that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101033870A (en) * 2006-03-10 2007-09-12 叶可 Standard air-conditioning
CN202521848U (en) * 2011-07-28 2012-11-07 广东芬尼克兹节能设备有限公司 Air source heat pump water heater with supercooling copper pipe
CN202547191U (en) * 2012-04-27 2012-11-21 田仕银 Low-temperature and high-efficiency air source heat pump water heater
CN202675719U (en) * 2012-06-07 2013-01-16 四川同达博尔置业有限公司 Air-cooled heat pump air conditioner
CN102721240A (en) * 2012-06-13 2012-10-10 广东澳信热泵空调有限公司 Low-temperature heat pump air conditioner heat exchanging system with anti-icing function
CN203837328U (en) * 2014-03-06 2014-09-17 广东欧科空调制冷有限公司 Air-cooled heat pump unit
CN206626854U (en) * 2017-03-08 2017-11-10 广东美格动力新能源有限公司 It is a kind of that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108224841A (en) * 2018-02-10 2018-06-29 湖南埃瓦新能源科技有限公司 A kind of heat pump system with drip tray ice-melt pipeline
CN108444138A (en) * 2018-04-17 2018-08-24 山东美琳达再生能源开发有限公司 A kind of Two-stage Compression low-temperature air source heat pump unit and method with refrigerating function
CN108954980A (en) * 2018-06-21 2018-12-07 深圳市派沃新能源科技股份有限公司 A kind of finned evaporator, heat pump system and control method
CN112629084A (en) * 2020-12-22 2021-04-09 广东美格动力新能源有限公司 Defrosting operation determination method and defrosting system

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Application publication date: 20170524