CN107965870A - A kind of multi-online air-conditioning system for being capable of effective oil-control - Google Patents

A kind of multi-online air-conditioning system for being capable of effective oil-control Download PDF

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Publication number
CN107965870A
CN107965870A CN201711191870.1A CN201711191870A CN107965870A CN 107965870 A CN107965870 A CN 107965870A CN 201711191870 A CN201711191870 A CN 201711191870A CN 107965870 A CN107965870 A CN 107965870A
Authority
CN
China
Prior art keywords
oil
compressor
way valve
gas
liquid separator
Prior art date
Application number
CN201711191870.1A
Other languages
Chinese (zh)
Inventor
易博
杨亚华
杨兵
Original Assignee
南京天加环境科技有限公司
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 南京天加环境科技有限公司 filed Critical 南京天加环境科技有限公司
Priority to CN201711191870.1A priority Critical patent/CN107965870A/en
Publication of CN107965870A publication Critical patent/CN107965870A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0003Exclusively-fluid systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B13/00Compression machines, plant or systems with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B31/00Compressor arrangements
    • F25B31/002Compressor arrangements lubrication
    • F25B31/004Compressor arrangements lubrication oil recirculating arrangements
    • 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, e.g. for transferring liquid from evaporator to boiler
    • F25B41/06Flow restrictors, e.g. capillary tubes; Disposition thereof
    • F25B41/062Expansion 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, e.g. for transferring liquid from evaporator to boiler
    • F25B41/06Flow restrictors, e.g. capillary tubes; Disposition thereof
    • F25B41/067Flow restrictors, e.g. capillary tubes; Disposition thereof capillary tubes
    • 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
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

The present invention relates to a kind of multi-online air-conditioning system for being capable of effective oil-control, including compressor, the exhaust outlet of the compressor is connected to the first port of four-way valve, the second port connection indoor unit of the four-way valve after oil eliminator;The import of the 3rd port connection gas-liquid separator of the four-way valve;4th port of the four-way valve connects the indoor unit after indoor set heat exchanger and main electronic expansion valve module successively;The outlet of the gas-liquid separator connects the air inlet of the compressor;The bottom of the oil eliminator is connected to the air inlet of the compressor after capillary;The outlet of the gas-liquid separator is also connected by solenoid valve and capillary with the oil discharge outlet of the compression motor spindle.The glossy lubricating oil that the present invention can make to separate in oil eliminator is directly entered compressor, high efficient and reliable, and by the break-make of solenoid valve, it can be achieved that reasonable oil return under compressor difference operating frequency, reduces the energy loss of oil return bypass, improve unit operation Energy Efficiency Ratio.

Description

A kind of multi-online air-conditioning system for being capable of effective oil-control

Technical field

The present invention relates to a kind of air-conditioning system, especially a kind of multi-online air-conditioning system, specifically one kind can have Imitate the multi-online air-conditioning system of oil-control.

Background technology

In multi-online air-conditioning system, compressor, once oil starvation operates, causes whole system can not be just as core component Often operating, thus the control of multi-online air-conditioning system lubricating oil seems extremely important.Due in actual moving process, compressor In lubricating oil can be brought into circulating refrigerant in pipeline, if cannot timely oil return, compressor lubricant oil will be caused insufficient, Overheat of compressor is caused even to burn compressor.In the prior art, mostly it is using oil eliminator to gas-liquid separator air inlet pipe Between set high-low pressure to bypass oil return capillary carry out oil return, still, there are following drawback for it:

1)During the high rotation speed operation of compressor, the oil mass that compressor is taken out of from exhaust side is more, can not be realized in oil eliminator 100% Oil-gas Separation, causes a part of lubricating oil to enter in system pipeline, can not return in time;

2)Oil return line is connected to gas-liquid separator air inlet pipe, causes lubricating oil and gas-liquid separator interior liquid refrigerant to mix After return to compressor, compressor has back liquid risk, causes compressor damage;

3)If gas-liquid separator internal organ block up, oil return hole is blocked, lubricating oil can not effectively return to compressor, cause compressor oil starvation And damage.

The content of the invention

In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of multi-gang air-conditioner system for being capable of effective oil-control System, it is efficiently safe, the reliability of multi-line system can be effectively improved.

The technical scheme is that:

A kind of multi-online air-conditioning system for being capable of effective oil-control, including compressor, the exhaust outlet of the compressor are separated by oil The first port of four-way valve, the second port connection indoor unit of the four-way valve are connected to after device;3rd port of the four-way valve connects Connect the import of gas-liquid separator;4th port of the four-way valve is successively after indoor set heat exchanger and main electronic expansion valve module Connect the indoor unit;The outlet of the gas-liquid separator connects the air inlet of the compressor;The bottom of the oil eliminator The air inlet of the compressor is connected to after capillary;The outlet of the gas-liquid separator also passes through solenoid valve and capillary It is connected with the oil discharge outlet of the compression motor spindle.

Further, bypass valve group is equipped between the import of the first port of the four-way valve and the gas-liquid separator Part.

Beneficial effects of the present invention:

Present invention design is reasonable, compact-sized, and operation is smooth, and the glossy lubricating oil that can make to separate in oil eliminator is directly entered Compressor, high efficient and reliable, and can be by the break-make of solenoid valve, it can be achieved that reasonable oil return under compressor difference operating frequency, subtracts The energy loss of few oil return bypass, improves unit operation Energy Efficiency Ratio.

Brief description of the drawings

Fig. 1 is the structural schematic block diagram of the present invention.

Wherein:1- compressors;2- oil eliminators;3- four-way valves;4- indoor set heat exchangers;The main electronic expansion valve modules of 5-; 6- indoor units;7- bypass valve assemblies;8- gas-liquid separators;9- solenoid valves;10- capillaries;A- exhaust outlets;B- air inlets;C- is arranged Hydraulic fluid port.

Embodiment

The present invention is further illustrated with reference to the accompanying drawings and examples.

As shown in Figure 1.

A kind of multi-online air-conditioning system for being capable of effective oil-control, including compressor 1.The compressor 1 is frequency-changeable compressor, Its exhaust outlet a is connected to the first port of four-way valve 3 after oil eliminator 2.The second port connection indoor unit of the four-way valve 3 6;The import of the 3rd port connection gas-liquid separator 8 of the four-way valve 3;Indoor unit is passed through in 4th port of the four-way valve 3 successively The indoor unit 6 is connected after heat exchanger 4 and main electronic expansion valve module 5;The outlet of the gas-liquid separator 8 connects the compression The air inlet b of machine 1;The bottom of the oil eliminator 2 is connected to the air inlet b of the compressor 1 after capillary 10, can shape Into the first oil-control circuit;The outlet of the gas-liquid separator 8 also passes through solenoid valve 9 and capillary 10 and 1 bottom of compressor Oil discharge outlet c be connected, the second oil-control circuit can be formed.

Bypass valve assembly 7 is equipped between 3 first port of four-way valve and the import of the gas-liquid separator 8.

The present invention the course of work be:

1)When unit normal operation, most of lubricating oil can have circuit to carry out oil return by second, i.e., by compressing motor spindle Oil discharge outlet discharge, flow to compressor inlet by capillary and "on" position solenoid valve, and then return to compressor.It is remaining Fraction lubricating oil carries out oil return after the Oil-gas Separation of oil eliminator, by the first oil-control circuit, i.e. by being separated with oil The capillary that device bottom is connected flows into the inlet end of compressor, and then returns to compressor.Lead in this way, compressor can be greatly reduced The lubricating oil of exhaust pipe discharge is crossed, so as to improve the oil-dividing efficiency of oil eliminator so that lubricating oil effectively returns to compressor;Together When, the lubricating oil of return is to be directly entered compressor, avoids passing through gas-liquid separator and causes liquid refrigerant to enter compressor, real Existing high efficient and reliable oil return;Moreover, by two-way oil return, even if gas-liquid separator is dirty stifled, oil return circulation is nor affected on, makes reliability Greatly improved.

2)When compressor low frequency operates, the oil mass of compressor discharge is few, can close solenoid valve, only by connecting oil separation First oil-control circuit of device carries out oil return, can not only ensure effective oil return, but also reduces energy loss, improves system energy efficiency.

Part that the present invention does not relate to is same as the prior art or can be realized using the prior art.

Claims (2)

1. a kind of multi-online air-conditioning system for being capable of effective oil-control, including compressor, it is characterized in that the exhaust outlet of the compressor The first port of four-way valve, the second port connection indoor unit of the four-way valve are connected to after oil eliminator;The four-way valve 3rd port connects the import of gas-liquid separator;4th port of the four-way valve is swollen by indoor set heat exchanger and main electronics successively The indoor unit is connected after swollen valve module;The outlet of the gas-liquid separator connects the air inlet of the compressor;The oil Bottom from device is connected to the air inlet of the compressor after capillary;The outlet of the gas-liquid separator also passes through electromagnetism Valve and capillary are connected with the oil discharge outlet of the compression motor spindle.
2. the multi-online air-conditioning system according to claim 1 for being capable of effective oil-control, it is characterized in that the of the four-way valve Bypass valve assembly is equipped between the import of Single port and the gas-liquid separator.
CN201711191870.1A 2017-11-24 2017-11-24 A kind of multi-online air-conditioning system for being capable of effective oil-control CN107965870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711191870.1A CN107965870A (en) 2017-11-24 2017-11-24 A kind of multi-online air-conditioning system for being capable of effective oil-control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711191870.1A CN107965870A (en) 2017-11-24 2017-11-24 A kind of multi-online air-conditioning system for being capable of effective oil-control

Publications (1)

Publication Number Publication Date
CN107965870A true CN107965870A (en) 2018-04-27

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Country Status (1)

Country Link
CN (1) CN107965870A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829583A (en) * 2012-09-25 2012-12-19 青岛海尔空调电子有限公司 Pipeline structure for reducing opening noise of pressure unloading valve of air conditioning system
CN103471299A (en) * 2013-08-30 2013-12-25 青岛海信日立空调系统有限公司 Multi-connected air-conditioner oil control system and oil control method
CN104214925A (en) * 2013-05-29 2014-12-17 广东美的暖通设备有限公司 Air conditioning system
EP2960600A1 (en) * 2014-06-02 2015-12-30 Lennox Industries Inc. System for managing lubricant levels in tandem compressor assemblies of an hvac system
CN105650762A (en) * 2016-01-04 2016-06-08 广东美的暖通设备有限公司 Air conditioner system, outdoor unit of air conditioner and method for improving volume efficiency of compressor of air conditioner
CN106801921A (en) * 2017-02-21 2017-06-06 广东美的暖通设备有限公司 Air injection enthalpy-increasing air-conditioning system and its control method
JP2017110820A (en) * 2015-12-14 2017-06-22 パナソニックIpマネジメント株式会社 Air conditioning device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102829583A (en) * 2012-09-25 2012-12-19 青岛海尔空调电子有限公司 Pipeline structure for reducing opening noise of pressure unloading valve of air conditioning system
CN104214925A (en) * 2013-05-29 2014-12-17 广东美的暖通设备有限公司 Air conditioning system
CN103471299A (en) * 2013-08-30 2013-12-25 青岛海信日立空调系统有限公司 Multi-connected air-conditioner oil control system and oil control method
EP2960600A1 (en) * 2014-06-02 2015-12-30 Lennox Industries Inc. System for managing lubricant levels in tandem compressor assemblies of an hvac system
JP2017110820A (en) * 2015-12-14 2017-06-22 パナソニックIpマネジメント株式会社 Air conditioning device
CN105650762A (en) * 2016-01-04 2016-06-08 广东美的暖通设备有限公司 Air conditioner system, outdoor unit of air conditioner and method for improving volume efficiency of compressor of air conditioner
CN106801921A (en) * 2017-02-21 2017-06-06 广东美的暖通设备有限公司 Air injection enthalpy-increasing air-conditioning system and its control method

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Application publication date: 20180427

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