CN204006307U - The air-conditioner with unloading function - Google Patents

The air-conditioner with unloading function Download PDF

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Publication number
CN204006307U
CN204006307U CN201420195110.3U CN201420195110U CN204006307U CN 204006307 U CN204006307 U CN 204006307U CN 201420195110 U CN201420195110 U CN 201420195110U CN 204006307 U CN204006307 U CN 204006307U
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China
Prior art keywords
air
pressure
conditioner
compressor
unloader
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CN201420195110.3U
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Chinese (zh)
Inventor
李伟
朱永祥
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Guangdong Midea Group Wuhu Air Conditioning Equipment Co Ltd
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Guangdong Midea Group Wuhu Air Conditioning Equipment Co Ltd
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Priority to CN201420195110.3U priority Critical patent/CN204006307U/en
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Abstract

The utility model discloses a kind of air-conditioner with unloading function, comprise the major loop being formed by compressor, indoor heat exchanger, outdoor heat exchanger, cross valve and throttling arrangement, also comprise: pressure unloader and off-load throttle part, off-load throttle part one end connects the muffler of compressor, and the other end is connected on the tube connector between described indoor heat exchanger and compressor through pressure unloader.The utility model by arranging pressure unloader and off-load throttle part in air-conditioning system, when air conditioner heat-production moves, when the pressure of the cold-producing medium through tube connector is greater than the operating pressure of pressure unloader, pressure unloader is opened, and part of refrigerant flows to off-load throttle part through excess pressure unloader, then flows into compressor return air pipe, get back to compressor, thereby reduce the system pressure of air-conditioner, guarantee the normal operation of air-conditioner, improved the safety in utilization of air-conditioner.

Description

The air-conditioner with unloading function
Technical field
The utility model relates to air-conditioning technical field, relates in particular to a kind of air-conditioner with unloading function.
Background technology
The refrigerating capacity that existing air-conditioner is specified and heating capacity, be generally all to design by certain environment temperature and certain air-out volume, and now the system pressure of air-conditioner meets the requirement of compressor working pressure.
But, when environment temperature changes or when user has changed air-out volume, the system pressure in air-conditioner will change.As shown in Figure 1, existing air-conditioner comprises compressor 1, indoor heat exchanger 5, outdoor heat exchanger 3, cross valve 2 and throttling arrangement 4.Heat pump air conditioner is when design heating capacity; environment temperature adopts indoor temperature 20 degree conventionally; outside temperature 7 degree; the air-out volume of indoor is generally by maximum air-out volume design; when the temperature of indoor and outside raises or when indoor air-out volume diminishes, the system pressure of air-conditioner will raise, and even can surpass the scope of application of compressor; thereby cause compressor protection to be shut down, even cause compressor damage.
Utility model content
Main purpose of the present utility model is to provide a kind of air-conditioner with unloading function, when air-conditioning heating moves, guarantees that air-conditioning system pressure balance normally moves.
In order to achieve the above object, the utility model proposes a kind of air-conditioner with unloading function, comprise the major loop being formed by compressor, indoor heat exchanger, outdoor heat exchanger, cross valve and throttling arrangement, also comprise: pressure unloader and off-load throttle part, described off-load throttle part one end connects the muffler of compressor, and the other end is connected on the tube connector between described indoor heat exchanger and compressor through described pressure unloader.
Preferably, described off-load throttle part is off-load capillary or choke valve.
Preferably, described pressure unloader has entrance and exit, and the entrance of described pressure unloader is connected on the tube connector between indoor heat exchanger and compressor; The outlet of described pressure unloader connects described off-load throttle part.
Preferably, this air-conditioner also comprises entrance tube connector and outlet connecting pipe; The entrance of described pressure unloader is connected on the tube connector between indoor heat exchanger and compressor through entrance tube connector; The outlet of described pressure unloader connects described off-load throttle part through outlet connecting pipe; When air conditioner heat-production moves, when the pressure of the cold-producing medium through described tube connector is greater than the operating pressure of pressure unloader, pressure unloader is opened, part of refrigerant is normal circulation in major loop, part of refrigerant is through the entrance tube connector feed pressure unloader of excess pressure unloader, then flows into off-load throttle part by the outlet connecting pipe of pressure unloader, and cold-producing medium is after the throttling of off-load throttle part, flow into compressor return air pipe, get back to compressor.
A kind of air-conditioner with unloading function the utility model proposes, by pressure unloader and off-load throttle part are set in air-conditioning system, off-load throttle part one end connects the muffler of compressor, the other end is connected on the tube connector between indoor heat exchanger and compressor through pressure unloader, when air conditioner heat-production moves, when the pressure of the cold-producing medium through tube connector is greater than the operating pressure of pressure unloader, pressure unloader is opened, part of refrigerant is normal circulation in major loop, part of refrigerant flows to off-load throttle part through excess pressure unloader, flow into again compressor return air pipe, get back to compressor, thereby reduce the system pressure of air-conditioner, guarantee the normal operation of air-conditioner, improved the safety in utilization of air-conditioner.
Accompanying drawing explanation
Fig. 1 is existing air conditioner structure schematic diagram;
Fig. 2 is the structural representation that the utlity model has the air-conditioner preferred embodiment of unloading function;
Fig. 3 is the structural representation that the utlity model has pressure unloader in the air-conditioner embodiment of unloading function;
Fig. 4 the utlity model has pressure unloader and off-load throttle part pipeline connection diagram in the air-conditioner embodiment of unloading function;
Fig. 5 be the utlity model has unloading function air-conditioner under refrigeration mode cold-producing medium flow to schematic diagram;
Fig. 6 be the utlity model has unloading function air-conditioner under heating mode cold-producing medium flow to schematic diagram;
Fig. 7 be the utlity model has unloading function air-conditioner when heating mode downforce unloader moves cold-producing medium flow to schematic diagram.
In order to make the technical solution of the utility model clearer, clear, below in conjunction with accompanying drawing, be described in further detail.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, the utility model preferred embodiment proposes a kind of air-conditioner with unloading function, comprise compressor 1, indoor heat exchanger 5, outdoor heat exchanger 3, cross valve 2, throttling arrangement 4, pressure unloader 7 and off-load throttle part 8, wherein, by compressor 1, indoor heat exchanger 5, outdoor heat exchanger 3, cross valve 2 and throttling arrangement 4, form major loop.
Compressor 1 has gas returning port and exhaust outlet, and cross valve 2 has inlet end, exhaust end, condensation end and evaporation ends; The inlet end of cross valve 2 connects the exhaust outlet of compressor 1, and the exhaust end cooled via return air pipe 9 of cross valve 2 connects the gas returning port of compressor 1.
Indoor heat exchanger 5 is connected with compressor 1 (during air conditioner heat-production pattern through the corresponding port of cross valve 2 respectively with outdoor heat exchanger 3, the outlet of indoor heat exchanger 5 is connected with the condensation end of cross valve 2 through tube connector 6, and the evaporation ends of cross valve 2 is connected with the entrance of outdoor heat exchanger 3; Otherwise during air-conditioner refrigeration mode, the entrance of indoor heat exchanger 5 is connected with the evaporation ends of cross valve 2, the condensation end of cross valve 2 is connected with the outlet of outdoor heat exchanger 3), throttling arrangement 4 is connected between indoor heat exchanger 5 and outdoor heat exchanger 3.
In the present embodiment, described off-load throttle part 8 one end connect the muffler 9 of compressor 1, and the other end is connected on the tube connector 6 between described indoor heat exchanger 5 and compressor 1 through described pressure unloader 7.
As a kind of embodiment, described off-load throttle part 8 can be off-load capillary or choke valve, or other have the parts of throttling function.The present embodiment illustrates with off-load capillary.
Shown in Fig. 3 and Fig. 4, described pressure unloader 7 has entrance and exit, and the entrance of pressure unloader 7 is connected on the tube connector 6 between indoor heat exchanger 5 and compressor 1 through entrance tube connector 12; The outlet of described pressure unloader 7 connects off-load one end capillaceous through outlet connecting pipe 10, and the off-load other end capillaceous is communicated with compressor 1 muffler 9.
Fig. 5 and Fig. 6 are the refrigerant flow direction schematic diagrames while not having cold-producing medium to flow through pressure unloader 7 and off-load capillary.Fig. 5 be the utlity model has unloading function air-conditioner under refrigeration mode cold-producing medium flow to schematic diagram; Fig. 6 be the utlity model has unloading function air-conditioner under heating mode cold-producing medium flow to schematic diagram.
As shown in Figures 5 and 6, refrigerant flow direction as shown by arrows in FIG..Under air-conditioner refrigeration mode and heating mode two states, the pressure of the cold-producing medium of flow through tube connector 6 and compressor 1 muffler 9 is all less than the operating pressure of pressure unloader 7, so there is no cold-producing medium flow through pressure unloader 7 and off-load capillary.
As shown in Figure 7, Fig. 7 be the utlity model has unloading function air-conditioner when 7 action of heating mode downforce unloader cold-producing medium flow to schematic diagram, refrigerant flow direction is as shown by arrows in FIG..
When air conditioner heat-production moves, because environment temperature raises or other reason, cause the pressure of the refrigeration system of air-conditioner to raise, when the pressure of the cold-producing medium through described tube connector 6 is greater than the operating pressure of pressure unloader 7, pressure unloader 7 is opened, part of refrigerant is normal circulation in major loop, part of refrigerant is through the entrance tube connector 12 feed pressure unloaders 7 of excess pressure unloader 7, outlet connecting pipe 10 by pressure unloader 7 flows into off-load throttle part 8 again, cold-producing medium is after 8 throttlings of off-load throttle part, flow into compressor 1 muffler 9, get back to compressor 1, reduce the system pressure of air-conditioner, thereby guarantee the normal operation of air-conditioner, avoid compressor 1 to damage.
Above are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or flow process conversion that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims (4)

1. an air-conditioner with unloading function, comprise the major loop being formed by compressor, indoor heat exchanger, outdoor heat exchanger, cross valve and throttling arrangement, it is characterized in that, also comprise: pressure unloader and off-load throttle part, described off-load throttle part one end connects the muffler of compressor, and the other end is connected on the tube connector between described indoor heat exchanger and compressor through described pressure unloader.
2. the air-conditioner with unloading function according to claim 1, is characterized in that, described off-load throttle part is off-load capillary or choke valve.
3. the air-conditioner with unloading function according to claim 1, is characterized in that, described pressure unloader has entrance and exit, and the entrance of described pressure unloader is connected on the tube connector between indoor heat exchanger and compressor; The outlet of described pressure unloader connects described off-load throttle part.
4. the air-conditioner with unloading function according to claim 3, is characterized in that, also comprises entrance tube connector and outlet connecting pipe; The entrance of described pressure unloader is connected on the tube connector between indoor heat exchanger and compressor through entrance tube connector; The outlet of described pressure unloader connects described off-load throttle part through outlet connecting pipe; When air conditioner heat-production moves, when the pressure of the cold-producing medium through described tube connector is greater than the operating pressure of pressure unloader, pressure unloader is opened, part of refrigerant is normal circulation in major loop, part of refrigerant is through the entrance tube connector feed pressure unloader of excess pressure unloader, then flows into off-load throttle part by the outlet connecting pipe of pressure unloader, and cold-producing medium is after the throttling of off-load throttle part, flow into compressor return air pipe, get back to compressor.
CN201420195110.3U 2014-04-21 2014-04-21 The air-conditioner with unloading function Active CN204006307U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420195110.3U CN204006307U (en) 2014-04-21 2014-04-21 The air-conditioner with unloading function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420195110.3U CN204006307U (en) 2014-04-21 2014-04-21 The air-conditioner with unloading function

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106802036A (en) * 2017-01-09 2017-06-06 美的集团股份有限公司 The cooling cycle system and method and high-temperature air conditioner of a kind of high-temperature air conditioner
CN109812930A (en) * 2018-12-27 2019-05-28 珠海格力电器股份有限公司 A kind of two-port valve control assembly, air conditioner and unloading control method
CN110730893A (en) * 2017-08-03 2020-01-24 大金工业株式会社 Refrigerating device
CN110762756A (en) * 2019-11-01 2020-02-07 宁波奥克斯电气股份有限公司 Air conditioning system and air conditioning frosting control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106802036A (en) * 2017-01-09 2017-06-06 美的集团股份有限公司 The cooling cycle system and method and high-temperature air conditioner of a kind of high-temperature air conditioner
CN106802036B (en) * 2017-01-09 2019-12-27 美的集团股份有限公司 Refrigeration cycle system and method of high-temperature air conditioner and high-temperature air conditioner
CN110730893A (en) * 2017-08-03 2020-01-24 大金工业株式会社 Refrigerating device
CN109812930A (en) * 2018-12-27 2019-05-28 珠海格力电器股份有限公司 A kind of two-port valve control assembly, air conditioner and unloading control method
CN110762756A (en) * 2019-11-01 2020-02-07 宁波奥克斯电气股份有限公司 Air conditioning system and air conditioning frosting control method

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