CN104896793A - Air conditioning hot water heater system - Google Patents

Air conditioning hot water heater system Download PDF

Info

Publication number
CN104896793A
CN104896793A CN201410081685.7A CN201410081685A CN104896793A CN 104896793 A CN104896793 A CN 104896793A CN 201410081685 A CN201410081685 A CN 201410081685A CN 104896793 A CN104896793 A CN 104896793A
Authority
CN
China
Prior art keywords
pipeline
compressor
air
loop
water heater
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
CN201410081685.7A
Other languages
Chinese (zh)
Inventor
武连发
任小辉
余凯
熊建国
罗亚军
周冰
李立民
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201410081685.7A priority Critical patent/CN104896793A/en
Publication of CN104896793A publication Critical patent/CN104896793A/en
Pending legal-status Critical Current

Links

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
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • 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
    • 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
    • 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
    • F25B41/34Expansion valves with the valve member being actuated by electric means, e.g. by piezo-electric actuators
    • 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
    • F25B2400/19Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
    • 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
    • F25B2500/00Problems to be solved
    • F25B2500/09Improving heat transfers
    • 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]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides an air conditioning hot water heater system, which comprises a compressor, a water heating apparatus and/or an indoor unit, a supercooler, an outdoor heat exchanger, a second pipeline, a supercooling loop and an enthalpy spraying loop, wherein the water heating apparatus and the indoor unit are respectively connected with the compressor; a first end of a first pipeline passing the supercooler is connected with a second end of the water heating apparatus and/or the indoor unit; a first end of the outdoor heat exchanger is connected with a second end of the first pipeline; the second end of the outdoor heat exchanger is connected with the compressor; the second pipeline passes the supercooler; a first end of the second pipeline is connected with the second end of the first pipeline; the supercooling loop is used for connecting a second end of the second pipeline with an air suction opening of the compressor; the enthalpy spraying loop is used for connecting the second end of the second pipeline with a coolant enthalpy spraying opening of the compressor; the enthalpy spraying loop is provided with enthalpy spraying solenoid valves and enthalpy spraying capillary tubes; and the supercooling loop is provided with a supercooling solenoid valve. According to the difference of unit operation modes, the enthalpy spraying loop or the supercooling loop is selected to be started by the hot water heater system; the system operation is optimized; the mass flow rate is increased; the heat capacity is improved; and the heating capacity is improved.

Description

Air-conditioning water heater system
Technical field
The present invention relates to heating-cooling equipment field, in particular to a kind of air-conditioning water heater system.
Background technology
Existing combined air conditioners hot water machine generally adopts common frequency-changeable compressor.At low ambient temperatures, the decay of compressor heating capacity is larger for this system schema.At low ambient temperatures, if when user takes " standard-sized sheet heats+water heating " pattern, the decay of heating capacity is comparatively large, and water heating speed is comparatively slow, and user's result of use is not good enough for existing scheme (adopting common frequency-changeable compressor).If now open electrical heating auxiliary heating water, power consumption can be caused again to increase.
Summary of the invention
The present invention aims to provide a kind of air-conditioning water heater system, comparatively large with the decay solving prior art hollow modulation hot water facility heating capacity at low ambient temperatures, the slow problem of water heating.
To achieve these goals, the invention provides a kind of air-conditioning water heater system, comprising: one or more compressor; Water heating equipment and/or indoor set, the first end of water heating equipment is connected with compressor respectively with the first end of indoor set; Subcooler, flows through the first end of the first pipeline of cooler and is connected with the second end of the second end of water heating equipment and/or indoor set; Outdoor heat exchanger, first end connects the second end of the first pipeline, and the second end connects compressor; Flow through the second pipeline of cooler, first end connects the second end flowing through the first pipeline of cooler; Cross cold loop, connect the second end of the second pipeline and the air entry of compressor; Spray enthalpy loop, the refrigerant of the second end and compressor that connect the second pipeline sprays enthalpy mouth; Wherein, there is in spray enthalpy loop spray enthalpy magnetic valve and spray enthalpy capillary, cross in cold loop and there is cold magnetic valve.
Further, subcooler electric expansion valve is provided with in the second pipeline.
Further, also comprise, the first cross valve be connected with compressor and the second cross valve; Wherein, the first end of indoor set connects the first cross valve, and the second end of outdoor heat exchanger connects the second cross valve.
Further, also comprise, gs-oil separator, be arranged in the pipeline between the first end of compressor and water heating equipment and the first end of indoor set.
Further, also comprise, oil balancer, be arranged in the pipeline between the first end of gs-oil separator and water heating equipment and the first end of indoor set.
Further, also comprise, vapour liquid separator, be arranged in the pipeline between the subcooler of cold loop and compressor air suction mouth.
Further, also comprise, the first electric expansion valve, be arranged in the pipeline between subcooler and outdoor heat exchanger.
Further, compressor is frequency conversion air injection enthalpy-increasing compressor.
Further, water-heating machine system comprises the frequency conversion air injection enthalpy-increasing compressor of multiple stage parallel connection, and in spray enthalpy loop, corresponding every compressor arranges the shunt that comprises spray enthalpy magnetic valve and spray enthalpy capillary.
Apply technical scheme of the present invention, air-conditioning water heater system, according to the difference of unit operation pattern, can be selected to open " spray enthalpy loop " or " crossing cold loop ", optimize system cloud gray model, add mass flow, improve heating capacity, improve heating capacity.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the system diagram of water-heating machine system of the present invention; And
Fig. 2 shows the service chart of heating of water-heating machine system of the present invention or " heating+water heating " pattern; And
Fig. 3 shows the refrigeration of water-heating machine system of the present invention or the service chart of " refrigeration+water heating " pattern.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The invention provides a kind of ultralow temperature combined air conditioners water-heating machine system adopting frequency conversion to spray enthalpy technology, the multi-joint water-heating machine system used under mainly devising a brand-new applicable ultra-low temperature surroundings.System of the present invention have employed frequency conversion spray enthalpy compressor, and devises the multi-joint hot-water heating system comprising " ultralow temperature spray enthalpy loop " and " crossing cold loop ".Well solve heating capacity when user at low temperatures opens " heating+water heating " pattern to decay excessive problem, ensure that user also can have good result of use at low temperatures, and reduce power consumption." cross cold loop " simultaneously and can ensure that again user is when " refrigeration " or " refrigeration+water heating " pattern of unlatching, machine refrigerant out has enough degree of supercoolings outdoor.
One embodiment of the present of invention are as follows:
Shown in Figure 1, combined air conditioners water-heating machine system comprises two frequency conversion air injection enthalpy-increasing compressors.The exhaust outlet of two compressors connects the first oil content 22 and the second oil content 23 respectively, the outlet of two gs-oil separators connects oil balancer 24, the outlet of oil balancer 24 connects and is divided into two-way, and a road connects chilled water heat-exchange apparatus, and another road connects the first cross valve 25 and the second cross valve 26.The another port of the first cross valve 25 connects indoor set.The pipeline returned from chilled water heat-exchange apparatus and indoor set is connected subcooler 29, this pipeline is the first pipeline through subcooler 29, first pipeline is divided into two-way through after subcooler 29, one road flows through connection first electric expansion valve 28 and enters outdoor heat exchanger 27, the other end of outdoor heat exchanger 27 connects the second cross valve 26, first cross valve 25 is connected vapour with a port of the second cross valve 26 and divides 30(vapour liquid separator), vapour divides the other end of 30 to lead to compressor air suction mouth, simultaneously, another road through subcooler 29 is the second pipeline, second pipeline is by passing subcooler 29 after subcooler electric expansion valve 50, again be divided into two-way afterwards, one tunnel flows through cold magnetic valve 55 and divides 30 towards vapour, another road leads to the first spray enthalpy magnetic valve 51 and the second spray enthalpy magnetic valve 52 in parallel, first spray enthalpy capillary 53 and the second spray enthalpy capillary 54 spray enthalpy magnetic valve 51 and second respectively and spray enthalpy magnetic valve 52 and connect with first, the pipeline flowing through spray enthalpy magnetic valve and spray enthalpy capillary leads to the refrigerant spray enthalpy mouth of compressor.
First Implementation Modes: open " heating+water heating " or " heating " pattern.
Under this pattern, one or more frequency conversion spray enthalpy compressor (frequency conversion air injection enthalpy-increasing compressor) start runs, first compressor 20, the high-temperature high-pressure refrigerant gas (Fig. 2 state point 3) that second compressor 21 is discharged is through the first oil content 22(gs-oil separator), after second oil content 23 carries out first order Oil-gas Separation, second level Oil-gas Separation is performed again through oil balancer 24, enter chilled water heat-exchange apparatus (feedwater heating) afterwards or enter indoor set (air heat to indoor) through the first cross valve 25, cold-producing medium becomes the liquid (Fig. 2 state point 4 ') of medium temperature and medium pressure after going out indoor set.Cold-producing medium is after machine flows back to off-premises station indoor, first through subcooler 29 excessively cold (Fig. 2 state point 5), divide two-way afterwards, the first via is changed to liquid-vapor mixture (Fig. 2 state point 5 ' of low-temp low-pressure after the first electric expansion valve 28 throttling, quality m2), enter outdoor heat exchanger 27 afterwards and carry out evaporation endothermic, after divide 30 to be reduced to the gas (Fig. 2 state point 2) of middle super pressure-high temperature to compressor air suction mouth (Fig. 2 state point 1) pressure of inspiration(Pi) through the second cross valve 26, vapour.Other second road cold-producing medium after subcooler 29 is excessively cold, after subcooler electric expansion valve 50 and subcooler 29, again through the first spray enthalpy magnetic valve 51 and the first spray enthalpy capillary 53, or second sprays enthalpy magnetic valve 52 and the second spray enthalpy capillary 54, become gas (Fig. 2 state point 6 of pressing in high temperature, quality m1), enter the refrigerant spray enthalpy mouth of compressor afterwards.Now, cross cold magnetic valve 55 to close.In compressor compresses chamber, the refrigerant gas (Fig. 2 state point 2, state point 6) of pressing in two-way high temperature, is mixed into the gas (Fig. 2 state point 2 ') of pressing in high temperature, is then gas (Fig. 2 state point 3 of HTHP by compressor compresses, quality is m), completes a circulation.From the refrigerant quality m=m1+m2 that compressor is discharged, the many m1 entered from refrigerant spray enthalpy mouth of the quality m2 sucked than compressor air entry, namely add mass flow, so improve heating capacity.In addition, if do not spray enthalpy, the delivery temperature of compressor is state point 3 ' in Fig. 2, and after having spray enthalpy, compressor exhaust temperature is reduced to state point 3 in Fig. 2, which thereby enhances the reliability of compressor.
Second Implementation Modes: open " refrigeration " or " refrigeration+water heating " pattern.
Under this pattern, the start of one or more frequency conversion spray enthalpy compressor runs, the high-temperature high-pressure refrigerant gas (Fig. 3 state point 3) that first compressor 20, second compressor 21 is discharged is after oil content (first oil content 22 or the second oil content 23) carries out first order Oil-gas Separation, second level Oil-gas Separation is performed again through oil balancer 24, enter chilled water heat-exchange apparatus (feedwater heating) afterwards and enter outdoor heat exchanger 27 through the second cross valve 26 and carry out condensation heat radiation, become the liquid (Fig. 3 state point 4) of middle temperature high pressure after going out outdoor heat exchanger 27, divide two-way afterwards.The first via (Fig. 3 state point 5) after subcooler 29 is excessively cold enters indoor set again, (Fig. 3 state point 5 ') evaporation endothermic again after electronic expansion valve of indoor unit throttling, get back to off-premises station afterwards, after the first cross valve 25 (Fig. 3 state point 6, quality m2), with the second tunnel (from subcooler electric expansion valve 50 and subcooler 29 and cross that cold magnetic valve 55 comes) refrigerant mixed.Above-mentioned second road cold-producing medium is through subcooler electric expansion valve 50 throttling (Fig. 3 state point 4 '), after subcooler 29 evaporation endothermic, (Fig. 3 state point 6 ' after crossing cold magnetic valve 55 again, quality m1), with the first via (machine and cross valve 25 are come indoor) refrigerant mixed.Now, the first spray enthalpy magnetic valve 51 and the second spray enthalpy magnetic valve 52 are closed.The mixed cold-producing medium of two-way enters vapour and divides 30(vapour liquid separator) to compressor air suction mouth (Fig. 3 state point 1).Then through compressor compression, become the gas (Fig. 3 state point 3, quality is m=m1+m2) of HTHP, complete a circulation." cross cold loop " through subcooler electric expansion valve 50 and through subcooler 29 and this road crossing cold magnetic valve 55, ensure that user is when " refrigeration " or " refrigeration+water heating " pattern of unlatching, machine refrigerant out has enough degree of supercoolings outdoor.
System of the present invention, according to the difference of unit operation pattern, can be selected to open " ultralow temperature spray enthalpy loop " or " crossing cold loop ".Heat or open under " heating+water heating " pattern in " ultralow temperature spray enthalpy loop ", open " crossing cold loop " under refrigeration or " refrigeration+water heating " pattern, optimize system cloud gray model.The combination design of spray enthalpy magnetic valve and spray enthalpy capillary, ensure that the cold-producing medium entering compressor refrigerant spray enthalpy mouth is all pure gas, prevents compressor hydraulic compression.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (9)

1. air-conditioning water heater system, comprising:
One or more compressor;
Water heating equipment and/or indoor set, the first end of described water heating equipment is connected with described compressor respectively with the first end of described indoor set;
It is characterized in that, also comprise,
Subcooler (29), the first end flowing through the first pipeline of described subcooler (29) is connected with the second end of described water heating equipment and/or the second end of described indoor set;
Outdoor heat exchanger (27), first end connects the second end of described first pipeline, and the second end connects described compressor;
Flow through the second pipeline of described subcooler (29), first end connects the second end flowing through the first pipeline of described subcooler (29);
Cross cold loop, connect the second end of described second pipeline and the air entry of compressor;
Spray enthalpy loop, the refrigerant of the second end and described compressor that connect described second pipeline sprays enthalpy mouth;
Wherein, have spray enthalpy magnetic valve (51,52) and spray enthalpy capillary (53,54) in described spray enthalpy loop, described mistake in cold loop had cold magnetic valve (55).
2. air-conditioning water heater system according to claim 1, is characterized in that, is provided with subcooler electric expansion valve (50) in described second pipeline.
3. air-conditioning water heater system according to claim 1, is characterized in that, also comprises, the first cross valve (25) be connected with described compressor and the second cross valve (26); Wherein, the first end of described indoor set connects described first cross valve (25), and the second end of described outdoor heat exchanger (27) connects described second cross valve (26).
4. air-conditioning water heater system according to claim 3, is characterized in that, also comprises, gs-oil separator (22,23), is arranged in the pipeline between the first end of described compressor and described water heating equipment and the first end of described indoor set.
5. air-conditioning water heater system according to claim 4, is characterized in that, also comprises, oil balancer (24), is arranged in the pipeline between the first end of described gs-oil separator (22,23) and described water heating equipment and the first end of described indoor set.
6. air-conditioning water heater system according to claim 1, is characterized in that, also comprises, vapour liquid separator (30), is arranged in the described pipeline crossed between the subcooler (29) of cold loop and described compressor air suction mouth.
7. air-conditioning water heater system according to claim 1, is characterized in that, also comprises, the first electric expansion valve (28), is arranged in the pipeline between described subcooler (29) and described outdoor heat exchanger (27).
8. air-conditioning water heater system according to claim 1, is characterized in that, described compressor is frequency conversion air injection enthalpy-increasing compressor.
9. air-conditioning water heater system according to claim 1, it is characterized in that, described water-heating machine system comprises the frequency conversion air injection enthalpy-increasing compressor of multiple stage parallel connection, and in described spray enthalpy loop, corresponding every compressor arranges the shunt that comprises spray enthalpy magnetic valve (51,52) and spray enthalpy capillary (53,54).
CN201410081685.7A 2014-03-06 2014-03-06 Air conditioning hot water heater system Pending CN104896793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410081685.7A CN104896793A (en) 2014-03-06 2014-03-06 Air conditioning hot water heater system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410081685.7A CN104896793A (en) 2014-03-06 2014-03-06 Air conditioning hot water heater system

Publications (1)

Publication Number Publication Date
CN104896793A true CN104896793A (en) 2015-09-09

Family

ID=54029614

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410081685.7A Pending CN104896793A (en) 2014-03-06 2014-03-06 Air conditioning hot water heater system

Country Status (1)

Country Link
CN (1) CN104896793A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091377A (en) * 2016-06-17 2016-11-09 广东美的暖通设备有限公司 Air conditioning hot unit
CN111895675A (en) * 2020-07-24 2020-11-06 苏州浪潮智能科技有限公司 Air conditioning system of heat recovery data center
CN112297769A (en) * 2020-11-05 2021-02-02 华南理工大学 All-weather electric automobile heat pump air-conditioning system
CN112648773A (en) * 2020-12-31 2021-04-13 中国联合工程有限公司 Parallel unit for direct expansion liquid supply refrigeration system of refrigeration house and working method thereof
CN112833481A (en) * 2019-11-22 2021-05-25 青岛海尔空调电子有限公司 Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system
CN113531867A (en) * 2021-08-11 2021-10-22 美的集团武汉暖通设备有限公司 Air conditioner, air conditioner control method and device, air conditioner and readable storage medium

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001241780A (en) * 2000-03-01 2001-09-07 Mitsubishi Electric Corp Refrigerating air conditioner
CN201547994U (en) * 2009-11-12 2010-08-11 广东美的电器股份有限公司 Air conditioner
EP2224187A2 (en) * 2004-10-18 2010-09-01 Mitsubishi Denki Kabushiki Kaisha Refrigeration/air conditioning equipment
CN201983528U (en) * 2011-01-07 2011-09-21 珠海格力电器股份有限公司 Multi-connected air conditioner outdoor unit with oil balancing function and air conditioning system
CN102734969A (en) * 2011-04-07 2012-10-17 松下电器产业株式会社 Refrigeration cycle apparatus and hydronic heater including the refrigeration cycle apparatus
CN202902494U (en) * 2012-11-07 2013-04-24 珠海格力电器股份有限公司 Outdoor unit and air conditioner comprising same
CN103180676A (en) * 2010-10-29 2013-06-26 三菱电机株式会社 Refrigeration cycle device and refrigeration cycle control method
CN203731741U (en) * 2014-03-06 2014-07-23 珠海格力电器股份有限公司 Air conditioning water heater system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001241780A (en) * 2000-03-01 2001-09-07 Mitsubishi Electric Corp Refrigerating air conditioner
EP2224187A2 (en) * 2004-10-18 2010-09-01 Mitsubishi Denki Kabushiki Kaisha Refrigeration/air conditioning equipment
CN201547994U (en) * 2009-11-12 2010-08-11 广东美的电器股份有限公司 Air conditioner
CN103180676A (en) * 2010-10-29 2013-06-26 三菱电机株式会社 Refrigeration cycle device and refrigeration cycle control method
CN201983528U (en) * 2011-01-07 2011-09-21 珠海格力电器股份有限公司 Multi-connected air conditioner outdoor unit with oil balancing function and air conditioning system
CN102734969A (en) * 2011-04-07 2012-10-17 松下电器产业株式会社 Refrigeration cycle apparatus and hydronic heater including the refrigeration cycle apparatus
CN202902494U (en) * 2012-11-07 2013-04-24 珠海格力电器股份有限公司 Outdoor unit and air conditioner comprising same
CN203731741U (en) * 2014-03-06 2014-07-23 珠海格力电器股份有限公司 Air conditioning water heater system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091377A (en) * 2016-06-17 2016-11-09 广东美的暖通设备有限公司 Air conditioning hot unit
CN106091377B (en) * 2016-06-17 2019-04-30 广东美的暖通设备有限公司 Air conditioning hot unit
CN112833481A (en) * 2019-11-22 2021-05-25 青岛海尔空调电子有限公司 Air supplementing and enthalpy increasing device for air conditioning system and air conditioning system
CN111895675A (en) * 2020-07-24 2020-11-06 苏州浪潮智能科技有限公司 Air conditioning system of heat recovery data center
CN112297769A (en) * 2020-11-05 2021-02-02 华南理工大学 All-weather electric automobile heat pump air-conditioning system
CN112648773A (en) * 2020-12-31 2021-04-13 中国联合工程有限公司 Parallel unit for direct expansion liquid supply refrigeration system of refrigeration house and working method thereof
CN113531867A (en) * 2021-08-11 2021-10-22 美的集团武汉暖通设备有限公司 Air conditioner, air conditioner control method and device, air conditioner and readable storage medium

Similar Documents

Publication Publication Date Title
CN104896793A (en) Air conditioning hot water heater system
CN106338112B (en) A kind of air-conditioning heat recovery system
CN102645060B (en) Multi-split air conditioning system
CN107860151A (en) Heat pump and there is its air conditioner
CN105091395A (en) Cooling and heating type air-conditioner system and single-cooling type air-conditioner system
CN202813592U (en) Air-conditioning device
CN103954067A (en) Refrigerating device
CN201066217Y (en) Novel heat pump system with bidirectional liquid storage tank
CN207936537U (en) A kind of air-conditioning
CN203731741U (en) Air conditioning water heater system
CN102252412A (en) Freon-free frequency-conversion air conditioner system
CN103900281B (en) One can realize hydronic carbon dioxide heat pump device and using method
CN104879950A (en) Air conditioner all-in-one machine system and control method thereof
CN105115089B (en) Air-conditioning system
CN101625176B (en) Quasi-tertiary compressed air source hot pump system
CN105333641B (en) Air-source air conditioning and water heating system
CN106369884A (en) Evaporator, air cooler, and refrigeration or heat pump device and system
CN203908089U (en) Refrigeration device
CN109386985A (en) Two pipes system air injection enthalpy-increasing outdoor unit and multi-line system
CN104019573B (en) Air-conditioner
CN205783983U (en) The heat high efficiente callback device of air source handpiece Water Chilling Units
CN106871474A (en) Air-cooled water-cooled combined air-conditioning system
CN105674614A (en) Air-cooled heat pump unit
CN103968455B (en) Air conditioner
CN105180527A (en) Air-conditioning and water-heating system and control method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150909