CN104214925B - Air conditioning system - Google Patents

Air conditioning system Download PDF

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Publication number
CN104214925B
CN104214925B CN201310208349.XA CN201310208349A CN104214925B CN 104214925 B CN104214925 B CN 104214925B CN 201310208349 A CN201310208349 A CN 201310208349A CN 104214925 B CN104214925 B CN 104214925B
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China
Prior art keywords
pipeline
coolant
air conditioning
compressor
heat exchanger
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CN201310208349.XA
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CN104214925A (en
Inventor
王茹翰
张光鹏
李洪生
薛晓
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.)
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201310208349.XA priority Critical patent/CN104214925B/en
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Abstract

The present invention provides a kind of air conditioning system, including compressor and gas-liquid separator, the closed circuit that this compressor and gas-liquid separator are formed is provided with the first pipeline and the second pipeline, first pipeline flow dividing has the 3rd pipeline and the 3rd pipeline and this first pipeline to conflux handing-over, 3rd pipeline is provided with a discharge degree valve, between the top of this discharge degree valve and the first pipeline flow dividing the 3rd pipeline, is provided with a heat-exchanger rig.By being configured with heat-exchanger rig, the coolant flowing through the 3rd pipeline and the coolant flowing through the second pipeline is made to carry out heat exchange operation, the coolant of the 3rd pipeline is because absorbing the cold of the coolant of the second pipeline, it is become liquid state or liquid from gaseous state, the pressure the most thus making the coolant of the 3rd pipeline reduces, reduced velocity flow to discharge degree valve open time, coolant will not cause this discharge degree valve and produce bigger unlatching noise because of its flow velocity and pressure differential.

Description

Air conditioning system
Technical field
The present invention relates to field of air conditioning, particularly relate to a kind of air conditioning system.
Background technology
Air conditioning system typically has discharge degree valve at present, and air-conditioning is filled by the control of system starting or run when Put unlatching, in order to regulate the pressure limit of internal system, prevent hypertonia or too low.But, it is configured with lid discharge degree valve Air conditioning system, when design pressure feather valve, it is only for meet the needs of system and arrange, do not account for this valve and exist Due to differential pressure action during unlatching, in addition, gas is flow at high speed in pipeline, thus produces bigger noise, makes to user undoubtedly Sense of discomfort and interference are become.
To this end, some research staff are by the improvement to pipeline structure, to reducing the discharge degree valve of air conditioning system Open noise.But, these pipeline structures it is difficult to ensure that gaseous coolant can pass completely through this some sub-pipes, so, its Dividing potential drop DeGrain, it is difficult to ensure that it reduces the effect of noise decibel.It addition, arrange multiple sub-pipes, air-conditioning system can be taken The inner space of system, is unfavorable for the design of the internal structure of air conditioning system.
Therefore, it is necessary to provide a kind of technological means to solve drawbacks described above.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, it is provided that a kind of air conditioning system, with solve prior art it Reduce unlatching noise result difference and the problem of overall structure unreasonable allocation of discharge degree valve.
The present invention is achieved in that a kind of air conditioning system, is that closed circuit is connected including compressor and with this compressor Gas-liquid separator, after the closed circuit that this compressor and gas-liquid separator are formed is provided with in order to by this compressor compresses Coolant flows in the first pipeline of this gas-liquid separator and in order to the coolant after this gas-liquid separator separates is flow back into this compression Second pipeline of machine, described first pipeline flow dividing has the 3rd pipeline and the 3rd pipeline and this first pipeline to conflux handing-over, 3rd pipeline is provided with a discharge degree valve, in the beginning of this discharge degree valve with the 3rd pipeline described in described first pipeline flow dividing One it is provided with in order to the coolant flowing through described 3rd pipeline is carried out changing of heat exchange with the coolant flowing through described second pipeline between end Thermal.
Specifically, described heat-exchanger rig includes being located on described 3rd pipeline and with the 3rd pipeline in connecting setting Heat exchanger tube, described heat exchanger tube is contacted with described second pipeline;
Further, described heat exchanger tube has the tortuous portion of one and described second pipeline contact;
Preferably, described tortuous portion is helical form, and it is wound on described second pipeline.
Specifically, the pipeline of the outdoor heat exchanger that the coolant at described compressor flows to described air conditioning system is provided with an oil Separator, and this oil eliminator is that closed circuit is connected with described compressor.
Further, described oil eliminator is located at the coolant of described compressor and is flowed on the pipeline of described heat-exchanger rig.
Specifically, described air conditioning system also includes a cross valve, four interfaces of described cross valve be connected respectively in The compressor of described air conditioning system, gas-liquid separator, outdoor heat exchanger and indoor heat exchanger.
Further, the pipeline that described outdoor heat exchanger is connected with described indoor heat exchanger is provided with throttling arrangement.
Further, described throttling arrangement is electric expansion valve or capillary tube.
Specifically, the pipeline that described outdoor heat exchanger is connected with described indoor heat exchanger is provided with the first stop valve, The pipeline that described indoor heat exchanger is connected with described compressor is provided with the second stop valve.
The technique effect of the present invention is: by being configured with heat-exchanger rig, makes the coolant flowing through the 3rd pipeline and flows through The coolant of two pipelines carries out heat exchange operation, and the coolant of the 3rd pipeline is because absorbing the cold of the coolant of the second pipeline, and it is by gaseous state Become liquid state or liquid, the most thus make the pressure of the coolant of the 3rd pipeline reduce, reduced velocity flow, to discharge degree When valve is opened, coolant will not cause this discharge degree valve and produce bigger unlatching noise because of its flow velocity and pressure differential.And this changes The installation of thermal, will not impact the layout of the internal structure of air conditioning system.Simultaneously as the coolant of the second pipeline leads to Crossing after the coolant of heat-exchanger rig and the 3rd pipeline carries out heat exchange, it can be become gaseous state or liquid state from liquid, can reduce it right The liquid hammer effect that compressor causes, thus strengthen the reliability of compressor operating.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air conditioning system of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and It is not used in the restriction present invention.
Referring to shown in Fig. 1, air conditioning system 100 includes the gas that compressor 10 is connected in closed circuit with this compressor 10 Liquid/gas separator 20, outdoor heat exchanger 80 and indoor heat exchanger (not shown), this gas-liquid separator 20 is mainly used in air-conditioning Coolant gas-liquid separation after system 100 work, and isolated liquid refrigerants is directly back to compressor 10, in case circulation makes With;The closed circuit that this compressor 10 and gas-liquid separator 20 are formed is provided with in order to the coolant after being compressed by this compressor 10 Flow in the first pipeline 31 of this gas-liquid separator 20 and flow back into this pressure in order to the coolant after being separated by this gas-liquid separator 20 Second pipeline 32 of contracting machine 10, the first pipeline 31 shunting has the 3rd pipeline 33 and the 3rd pipeline 33 to converge with this first pipeline 31 Stream handing-over, wherein, the 3rd pipeline 33 and the first pipeline 31 join top 34 and end 35, top 34 close to compressor 10, And end 35 is close to gas-liquid separator 20, further, the 3rd pipeline 33 is provided with a discharge degree valve 40, in this pressure Power feather valve 40 and the first pipeline 31 shunt and are provided with one in order to flowing through the 3rd pipeline 33 between the top 34 of the 3rd pipeline 33 Coolant carries out the heat-exchanger rig 50 of heat exchange with the coolant flowing through the second pipeline 32.By being configured with heat-exchanger rig 50, make to flow through The coolant of the 3rd pipeline 33 and the coolant flowing through the second pipeline 32 carry out heat exchange operation, and the coolant of the 3rd pipeline 33 is because absorbing The cold of the coolant of two pipelines 32, it is become liquid state or liquid from gaseous state, the most thus makes the pressure of the coolant of the 3rd pipeline 33 Power reduce, reduced velocity flow to discharge degree valve 40 open time, coolant will not cause this pressure because of its flow velocity and pressure differential Feather valve 40 produces bigger unlatching noise.And the installation of this heat-exchanger rig 50, will not be to the internal structure of air conditioning system 100 Layout impact.Simultaneously as the coolant of the second pipeline 32 is carried out by the coolant of heat-exchanger rig 50 with the 3rd pipeline 33 After heat exchange, it can be become gaseous state or liquid state from liquid, can reduce its liquid hammer effect causing compressor 10, thus strengthen Compressor 10 reliability of operation.
Specifically, heat-exchanger rig 50 includes being located on the 3rd pipeline 33 and with the 3rd pipeline 33 in connecting changing of setting Heat pipe 51, heat exchanger tube 51 is contacted with the second pipeline 32;By heat exchanger tube 51 being contacted with the second pipeline 32, as long as ordering about the 3rd pipe The coolant on road 33 flows into heat exchanger tube 51, and so, the coolant of the 3rd pipeline 33 and the coolant of the second pipeline 32 just can carry out heat exchange Operation, makes the pressure of the coolant of the 3rd pipeline 33 reduce, reduced velocity flow simply and effectively.Further, heat exchanger tube 51 Having a tortuous portion 52 contacted with the second pipeline 32, wherein, this tortuous portion 52 is helical form, and it is wound in the second pipeline On 32, by its helical structure, except the resistance that coolant flows in heat exchanger tube 51 can be increased, reduce coolant stream with this The effect of speed, it is also possible to by increasing the contact length of its and the second pipeline 32, relative to its cold with the second pipeline 32 of increase The heat-exchange time of matchmaker so that it is can fully heat exchange, so as to improving the degree of supercooling of coolant of the 3rd pipeline 33, thus preferably reduce The unlatching noise of discharge degree valve 40.Selectively, tortuous portion 52 is back-shaped shape, and it is surrounded on the second pipeline 32, and Use back-shaped shape, be also comparable to increase heat exchanger tube 51 so that it is internal coolant can fill with the coolant on the second pipeline 32 Tap is touched, it is ensured that heat transfer effect.The tortuous portion of the present invention 52 preferably employs helical form, the most also using this structure as stating.
It is preferred that be provided with an oil on the pipeline of the outdoor heat exchanger 80 flowing to air conditioning system 100 at the coolant of compressor 10 Separator 60, and this oil eliminator 60 is connected in closed circuit with compressor 10.Oil eliminator 60 is mainly for separating of by pressing The incidental oils and fats of coolant of contracting machine 10 preparation, to avoid affecting the heat-transfer effect of coolant.It addition, the work of this oil eliminator 60 Principle is: compressor 10 coolant (containing lubricating oil) out, after entering oil eliminator, enters back into the guiding of oil eliminator 60 Leaf, then flows in the shape of a spiral along directing vane, by centrifugal force and gravity, is separated by lubricating oil from Working medium gas, edge The inwall cylinder flows down.Oil eliminator 60 drawn by the Working medium gas pipe through many neutrals Ban You center.Isolated lubricating oil, Concentrate on the bottom of oil eliminator, can periodically discharge, or utilize ball-cock assembly, make lubricating oil automatically return to the bent axle of compressor 10 In case.Further, oil eliminator 60 is located at the coolant of compressor 10 and is flowed on the pipeline of heat-exchanger rig 50, specifically, and should Oil eliminator 60 shunts between the top 34 of the 3rd pipeline 33 at the first pipeline 31 and this first pipeline 31, to flowing into The coolant of heat-exchanger rig 50 isolates oils and fats, it is ensured that the degree of supercooling of coolant.
Air conditioning system 100 also includes cross valve 70, and four interfaces of cross valve 70 are connected respectively in air conditioning system 100 Compressor 10, gas-liquid separator 20, outdoor heat exchanger 80 and indoor heat exchanger, wherein, utilize cross valve 70, can be preferably Control the commutation of coolant.Further, the pipeline that outdoor heat exchanger 80 is connected with indoor heat exchanger is provided with throttling arrangement 90. Further, throttling arrangement 91 is electric expansion valve or capillary tube.
Wherein, electric expansion valve can be exported control signal by electronic controller, by electricity according to the signal such as temperature, happy power Flowing mode is automatically adjusted throttling flow velocity.
The setting of capillary tube can make air conditioning system 100 when refrigeration, by capillary tube by from outdoor heat exchanger 80 out High-pressure liquid coolant, is become the liquid refrigerants of low pressure, enters back into indoor heat exchanger by throttling expansion.
Specifically, the pipeline that outdoor heat exchanger 80 is connected with indoor heat exchanger is provided with the first stop valve 11, in indoor The pipeline that heat exchanger is connected with compressor 10 is provided with the second stop valve 12.Wherein, the first stop valve 11 is high-pressure stop valve, and Second stop valve 12 is low-pressure shutoff valve, specifically, when throttling the coolant passed through through the first stop valve 11 from throttling arrangement 91 Time, if the hypertonia of this coolant, the first stop valve 11 can block the path flowing to indoor heat exchanger;In like manner, when from indoor The coolant that heat exchanger flows out is when through the second stop valve 12, if the hypotony of this coolant, the second stop valve 12 can block stream Path to cross valve 70.
Below in conjunction with diagram, the present invention is reduced the structure opening noise of the discharge degree valve 40 of air conditioning system 100 Operation principle be further described:
In FIG, from the gaseous coolant of compressor 10 preparation, first pass through oil eliminator 60 and isolate oils and fats, then, gaseous state Coolant enters the 3rd pipeline 33, and carries out heat exchange by the heat exchanger tube 51 of heat-exchanger rig 50 with the coolant flowing through the second pipeline 32, Coolant on the 3rd pipeline 33 is become liquid state or liquid from gaseous state after heat exchange, and at the coolant of the second pipeline 32 by liquid Become liquid state or gaseous state;Afterwards, the coolant after heat exchange can flow to discharge degree valve 40, then, when in air conditioning system 100 Portion's pressure opens discharge degree valve 40 time excessive, because the coolant on the 3rd pipeline 33 improves certain degree of supercooling after heat exchange, and And its flow velocity is buffered, so, after opening discharge degree valve 40, coolant will not be because its flow velocity and pressure differential be at discharge degree valve The opening part of 40 produces noise, then reduces the purpose opening noise of the discharge degree valve 40 of air conditioning system 100.
The foregoing is only preferred embodiment of the present invention, its structure is not limited to the above-mentioned shape enumerated, all Any amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in the protection of the present invention Within the scope of.

Claims (10)

1. an air conditioning system, is the gas-liquid separator that closed circuit is connected including compressor and with this compressor, in this compression The closed circuit that machine is formed with gas-liquid separator is provided with in order to flow to the coolant after this compressor compresses in this gas-liquid separation First pipeline of device and in order to the coolant after this gas-liquid separator separates to be flow back into the second pipeline of this compressor, described first Pipeline flow dividing has the 3rd pipeline and the 3rd pipeline and this first pipeline to conflux handing-over, is provided with a pressure on the 3rd pipeline Feather valve, it is characterised in that be provided with between the top of the 3rd pipeline described in this discharge degree valve and described first pipeline flow dividing One in order to the heat-exchanger rig flowing through the coolant of described 3rd pipeline and the coolant flowing through described second pipeline and carrying out heat exchange.
2. air conditioning system as claimed in claim 1, it is characterised in that: described heat-exchanger rig includes being located at described 3rd pipeline Above and with the 3rd pipeline in connecting the heat exchanger tube arranged, described heat exchanger tube is contacted with described second pipeline.
3. air conditioning system as claimed in claim 2, it is characterised in that: described heat exchanger tube have one with described second pipeline contact Tortuous portion.
4. air conditioning system as claimed in claim 3, it is characterised in that: described tortuous portion is helical form, and it is wound in institute State on the second pipeline.
5. air conditioning system as claimed in claim 1, it is characterised in that: the coolant at described compressor flows to described air conditioning system The pipeline of outdoor heat exchanger be provided with an oil eliminator, and this oil eliminator is that closed circuit is connected with described compressor.
6. air conditioning system as claimed in claim 5, it is characterised in that: the coolant stream of described compressor is located at by described oil eliminator On the pipeline in described heat-exchanger rig.
7. the air conditioning system as described in any one of claim 1-6, it is characterised in that: described air conditioning system also includes a four-way Valve, four interfaces of described cross valve are connected respectively the compressor in described air conditioning system, gas-liquid separator, outdoor heat exchange Device and indoor heat exchanger.
8. air conditioning system as claimed in claim 7, it is characterised in that: at described outdoor heat exchanger with described indoor heat exchanger even The pipeline connect is provided with throttling arrangement.
9. air conditioning system as claimed in claim 8, it is characterised in that: described throttling arrangement is electric expansion valve or capillary tube.
10. air conditioning system as claimed in claim 7, it is characterised in that: at described outdoor heat exchanger and described indoor heat exchanger The pipeline connected is provided with the first stop valve, is provided with second section on the pipeline that described indoor heat exchanger is connected with described compressor Only valve.
CN201310208349.XA 2013-05-29 2013-05-29 Air conditioning system Active CN104214925B (en)

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Application Number Priority Date Filing Date Title
CN201310208349.XA CN104214925B (en) 2013-05-29 2013-05-29 Air conditioning system

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Application Number Priority Date Filing Date Title
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CN104214925B true CN104214925B (en) 2016-12-28

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107965870A (en) * 2017-11-24 2018-04-27 南京天加环境科技有限公司 A kind of multi-online air-conditioning system for being capable of effective oil-control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08166183A (en) * 1994-12-13 1996-06-25 Mitsubishi Electric Corp Air-conditioning equipment
CN1888734A (en) * 2005-06-30 2007-01-03 乐金电子(天津)电器有限公司 Air conditioner compressor/condenser assembly
CN201273742Y (en) * 2008-09-04 2009-07-15 广东美的电器股份有限公司 Capability unloading apparatus for multi-connection type air-conditioner
CN102798251A (en) * 2012-07-31 2012-11-28 广东美的暖通设备有限公司 Oil balancing device and multi-split air conditioning system
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
CN203375659U (en) * 2013-05-29 2014-01-01 广东美的暖通设备有限公司 Air conditioning system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002195677A (en) * 2000-10-20 2002-07-10 Denso Corp Heat pump cycle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08166183A (en) * 1994-12-13 1996-06-25 Mitsubishi Electric Corp Air-conditioning equipment
CN1888734A (en) * 2005-06-30 2007-01-03 乐金电子(天津)电器有限公司 Air conditioner compressor/condenser assembly
CN201273742Y (en) * 2008-09-04 2009-07-15 广东美的电器股份有限公司 Capability unloading apparatus for multi-connection type air-conditioner
CN102798251A (en) * 2012-07-31 2012-11-28 广东美的暖通设备有限公司 Oil balancing device and multi-split air conditioning system
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
CN203375659U (en) * 2013-05-29 2014-01-01 广东美的暖通设备有限公司 Air conditioning system

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