CN102519093A - Pipeline system for single refrigeration air conditioner - Google Patents

Pipeline system for single refrigeration air conditioner Download PDF

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Publication number
CN102519093A
CN102519093A CN2011104516114A CN201110451611A CN102519093A CN 102519093 A CN102519093 A CN 102519093A CN 2011104516114 A CN2011104516114 A CN 2011104516114A CN 201110451611 A CN201110451611 A CN 201110451611A CN 102519093 A CN102519093 A CN 102519093A
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China
Prior art keywords
pipe
pipeline
indoor
stop valve
condenser
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CN2011104516114A
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Chinese (zh)
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CN102519093B (en
Inventor
黄炳华
刘杰
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Aux Air Conditioning Co Ltd
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Ningbo Aux Group Co Ltd
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Priority to CN201110451611.4A priority Critical patent/CN102519093B/en
Publication of CN102519093A publication Critical patent/CN102519093A/en
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Abstract

The invention relates to a pipeline system for a single refrigeration air conditioner. The pipeline system mainly consists of an outdoor unit (3), an indoor unit (9), a lead-out pipe (6) and a backflow pipe (11), wherein the lead-out pipe (6) and the backflow pipe (11) are connected with the indoor unit (3) and the outdoor unit (9), the outdoor unit comprises a compressor (1), a condenser (2), a first stop valve (5) and a second stop valve (12), and the indoor unit comprises an evaporator (8), a flow dividing body (61), a first threaded joint (7) and a second threaded joint (10). A silencer (62) consisting of capillary tubes (63) is also arranged between the flow dividing body and the evaporator of the indoor unit, and the condenser of the outdoor unit is directly connected with the first stop valve. In the pipeline system, the lead-out pipe becomes a high-temperature pipe capable of realizing the heat exchange effect with the outside, the effect similar to the condenser is realized, the condensing pressure of the condenser is reduced, and the energy efficiency ratio of the air conditioner is improved.

Description

The pipe-line system of single refrigeration air-conditioner
Technical field
The present invention relates to a kind of pipe-line system of single refrigeration air-conditioner, the Energy Efficiency Ratio of the optimization and improvement air-conditioning through pipe-line system.
Background technology
As shown in Figure 1, the pipe-line system of existing single refrigeration air-conditioner mainly is made up of off-premises station 3, indoor set 9 and the fairlead that is connected both 6, return duct 11.Off-premises station comprises compressor 1, condenser 2, stop valve 1 and stop valve 2 12, and one 5 of condenser 2 and stop valves are connected with capillary 4.Indoor set comprises evaporimeter 8, divides fluid 61, nipple 1 and nipple 2 10, divides between fluid 61 and evaporimeter 8 directly to be connected.One end of fairlead 6 is connected on the stop valve 1 of off-premises station 3, and the other end is connected on the nipple 1 of indoor set 9.One end of return duct 11 is connected on the nipple 2 10 of indoor set 9, and the other end is connected on the stop valve 2 12 of off-premises station 3.Off-premises station 3, fairlead 6, indoor set 9, return duct 11 form closed circuit pipe-line system.
After single refrigeration air-conditioner started, refrigerant was flowing shown in arrow among Fig. 1 in the pipe-line system.Gas coolant is compressed the steam of machine 1 boil down to HTHP; Steam is transported to the condenser 2 of off-premises station 3, and refrigerant cools off heat release, becomes the high temperature, high pressure liquid refrigerant; Liquid coolant enters into capillary 4, after step-down throttling capillaceous, becomes low-temp low-pressure liquid; Low-temp low-pressure liquid successively through the branch fluid 61 of machine 9 in stop valve 5, the fairlead 6 back inlet chambers, gets into evaporimeter 8 through the distribution pipeline that divides fluid 61 more again.The liquid coolant evaporation becomes low temperature and low pressure steam.Low temperature and low pressure steam comes back to compressor 1 through return duct 11, stop valve 12, continues circulation next time.So reciprocation cycle absorbs great amount of heat in the refrigerant evaporation process, and indoor set is realized refrigerating function.
The raising of Along with people's energy-saving and emission-reduction consciousness, domestic air conditioning has become the first-selected object that cuts down the consumption of energy.And reduce condensing pressure, improve evaporating pressure is the most effectual way that the air-conditioning manufacturing improves air-conditioning Energy Efficiency Ratio, reduction air conditioning energy consumption.
Summary of the invention
The invention reside in the pipe-line system of optimizing single refrigeration air-conditioner, improve the Energy Efficiency Ratio of single refrigeration air-conditioner.
For this reason, the invention provides a kind of pipe-line system of single refrigeration air-conditioner, between the branch fluid of indoor set and evaporimeter, also be provided with the silencing means that capillary is formed, the condenser of off-premises station directly is connected with stop valve one.
In the pipe-line system of existing single refrigeration air-conditioner, fairlead, return duct temperature promptly all are low temperature in 10 deg.c.Throttling capillaceous is a constant-enthalpy process, is the refrigerant that the HTHP refrigerant is become low-temp low-pressure.Therefore capillary is the separation of pressure and temperature in the pipe-line system.The change of capillary position, the separation of pressure and temperature also changes, i.e. and after the capillary reach, high temperature, high pressure spot be and then reach also.Therefore, after the present invention moved on to indoor set with the capillary of off-premises station, the fairlead that connects before the capillary had also become high temperature by former low temperature.
The fairlead of high temperature can with the outside air direct heat transfer, play the effect of similar condenser.Because the length of the fairlead between indoor set and off-premises station is generally about three meters, this will increase the exchange capability of heat of air-conditioning greatly, reduce the condensing pressure of the condenser of off-premises station.Because after capillary position changed, the refrigerating capacity of air-conditioning was constant basically, thereby the refrigeration consumed power can reduce greatly, and promptly the air-conditioning Energy Efficiency Ratio is improved.
In the pipe-line system of the single refrigeration air-conditioner of the present invention,, connectedly fill the also corresponding cancellation of fluorine process duct because off-premises station does not have capillary.Because cancelled the capillary of off-premises station and filled the fluorine process duct, off-premises station manufacturing process reduces, production efficiency is improved.In addition, because the silencing means that capillary is formed is just replaced the former minute distribution pipeline behind the fluid, therefore, the manufacturing process of indoor set and cost do not have to change basically.
In the pipe-line system of the single refrigeration air-conditioner of the present invention,, only can not absorb heat from the external world to extraneous heat release because the temperature of fairlead is higher than environment temperature.Therefore, fairlead need not wrap up heat-barrier material as existing air-conditioning, and the air-conditioning cost is minimized.
In the pipe-line system of the single refrigeration air-conditioner of the present invention, the high pressure refrigerant becomes low pressure behind capillary, and mobile noise also is minimized.Therefore, the present invention changes the effect that capillary behind the position also plays noise reduction, and sound is littler when making the indoor set operation.
In addition, in the pipe-line system of the single refrigeration air-conditioner of the present invention, owing in each branch road behind minute fluid capillary is arranged all, the uniformity of the multichannel throttling before the evaporimeter is better, than being easier to control.
Among the present invention, condenser can be preferably finned heat exchanger, and its heat exchanger tube adopts the inner screw thread copper pipe of Φ 9.52mm specification; Evaporimeter also is a finned heat exchanger, and its heat exchanger tube adopts the inner screw thread copper pipe of Φ 7mm specification.Condenser, evaporimeter adopt the inner screw thread copper pipe of small-bore to replace the copper pipe of big caliber, reaching under the situation of identical performance, can reduce the cost about 20%.In addition, in identical system, adopt tubule footpath copper pipe condenser or evaporimeter to substitute the original condenser or the evaporimeter of caliber greatly, can reduce the charging amount of cold-producing medium.Because compare the condenser or the evaporimeter of original big caliber, the pipe inner volume of tubule footpath copper pipe condenser or evaporimeter is much smaller, and adopts the tubule footpath copper pipe system effectiveness of strengthening internal thread also higher, so can effectively reduce the charging amount of cold-producing medium.Evidence, after the copper pipe system of employing tubule footpath, refrigerant charge obviously reduces, and reduction is up to about 30%, and is useful to environmental protection.
As further optimization of matching, it is the copper pipe of 6mm that the pipeline that the condenser of off-premises station of the present invention and stop valve are, pipeline that the branch fluid of indoor set and nipple are and fairlead all adopt nominal diameter; The stop valve two of off-premises station and the pipeline of compressor chamber, it is the copper pipe of 10mm that pipeline that the evaporimeter of indoor set and nipple are two and return duct all adopt nominal diameter.
Evidence, in the pipe-line system of the single refrigeration air-conditioner of the present invention, the temperature of fairlead is 35 deg.c, and return duct is 15 deg.c, and both differ about 20 degree.As further, in the pipe-line system of single refrigeration air-conditioner, can fairlead and return duct be formed sleeve pipe, make that direct heat exchanges between fairlead and return duct.Because return duct temperature (15 deg.c) is low than environment temperature (30 deg.c), easier and fairlead carries out exchange heat.Fairlead can fully be cooled off, and the condensing pressure of condenser is minimized.Simultaneously, return duct is heated by fairlead, and refrigerant pressure improves in it, and the evaporating pressure of evaporimeter is improved.And reduce condensing pressure, improve evaporating pressure is the most effectual way that improves the air-conditioning Energy Efficiency Ratio.
For making the interior pipe and the outer tube of sleeve pipe carry out heat exchange preferably, refrigerant should have more time and attaching space when in fairlead and return duct, circulating.As a kind of preferred, the actual internal area of refrigerant should be greater than the sleeve pipe two ends in the sleeve pipe.But make for ease and be connected, sleeve pipe also preferably the caliber of fairlead or return duct as inner tube diameter.
As preferably, in the pipe-line system of the single refrigeration air-conditioner of the present invention, the interior pipe of sleeve pipe is that the outer tube of return duct, sleeve pipe is a fairlead.The interior pipe of sleeve pipe, the stop valve two of off-premises station and the pipeline of compressor chamber, the pipeline that the evaporimeter of indoor set and nipple are two, all adopting diameter is the copper pipe of D1; The pipeline that the condenser of off-premises station and stop valve are one, the pipeline that the branch fluid of indoor set and nipple are, all adopting diameter is the copper pipe of D2; The diameter of the outer tube of sleeve pipe is D3.Through evidence, aforementioned D1 is 1.2~1.8 times of D2, and when D3 was 1.3~3 times of D1, the Energy Efficiency Ratio of air-conditioning and shell material cost can be obtained better balance.
As preferably, in the pipe-line system of the single refrigeration air-conditioner of the present invention, the interior pipe of sleeve pipe is that the outer tube of fairlead, sleeve pipe is a return duct.The stop valve two of off-premises station and the pipeline of compressor chamber, the pipeline that the evaporimeter of indoor set and nipple are two, all adopting diameter is the copper pipe of D2; The interior pipe of sleeve pipe, the pipeline that the condenser of off-premises station and stop valve are, the pipeline that the branch fluid of indoor set and nipple are, all adopting diameter is the copper pipe of D1; The diameter of the outer tube of sleeve pipe is D3.Through evidence, aforementioned D1 is 0.5~0.8 times of D2, and when D3 was 2.2~4 times of D1, the Energy Efficiency Ratio of air-conditioning and shell material cost can be obtained better balance.
Description of drawings
Further specify the present invention below in conjunction with the accompanying drawing and the specific embodiment.
Fig. 1 is the pipe-line system of existing single refrigeration air-conditioner;
Fig. 2 is the embodiment of the pipe-line system of single refrigeration air-conditioner of the present invention;
Fig. 3 is another embodiment of the pipe-line system of single refrigeration air-conditioner of the present invention;
Fig. 4 is the cross section structure sketch map of the sleeve pipe among the embodiment of pipe-line system shown in Figure 3.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 2, the pipe-line system of single refrigeration air-conditioner of this embodiment is made up of off-premises station 3, indoor set 9 and the fairlead that is connected both 6, return duct 11.Off-premises station comprises compressor 1, condenser 2, stop valve 1 and stop valve 2 12, and condenser 2 directly is connected with stop valve 1.Indoor set comprises evaporimeter 8, divides fluid 61, nipple 1 and nipple 2 10.Divide fluid 61 and 8 in evaporimeter also to be provided with the silencing means 62 that capillary 63 is formed.In the evaporimeter 8, three are connected in parallel on 82 of silencing means 62 and discharges with heat exchanger tube 81, and promptly the front end of every heat exchanger tube 81 all connects a capillary 63.One end of fairlead 6 is connected on the stop valve 1 of off-premises station 3, and the other end is connected on the nipple 1 of indoor set 9.One end of return duct 11 is connected on the nipple 2 10 of indoor set 9, and the other end is connected on the stop valve 2 12 of off-premises station 3.Off-premises station 3, fairlead 6, indoor set 9, return duct 11 form closed circuit pipe-line system.Among this embodiment, condenser 2 is a finned heat exchanger, and its heat exchanger tube 21 adopts the inner screw thread copper pipe of Φ 9.52mm specification; Evaporimeter 8 is a finned heat exchanger, and its heat exchanger tube 81 adopts the inner screw thread copper pipe of Φ 7mm specification.It is the copper pipe of 6mm that the pipeline that the condenser 2 of off-premises station and stop valve are one 5, pipeline that the branch fluid 61 of indoor set and nipple are one 7 and fairlead 6 all adopt nominal diameter; It is the copper pipe of 10mm that the pipeline that the stop valve 2 12 of off-premises station and compressor are 1, pipeline that the evaporimeter 8 of indoor set and nipple are 2 10 and return duct 11 all adopt nominal diameter.
After single refrigeration air-conditioner started, refrigerant was flowing shown in arrow among Fig. 2 in the pipe-line system.Gas coolant is compressed the steam of machine 1 boil down to HTHP; Steam is transported to the condenser 2 of off-premises station 3; Refrigerant cools off heat release, becomes the high temperature, high pressure liquid refrigerant; Liquid coolant through the branch fluid 61 of machine 9 in stop valve 5, the fairlead 6 back inlet chambers, gets into evaporimeter 8 successively again behind the silencing means 62 that divides fluid 61 and be made up of capillary 63.Through evaporating, becoming low temperature and low pressure steam, advance again through return duct 11, stop valve 12 to come back to compressor 1, continue circulation next time.So reciprocation cycle absorbs great amount of heat in the refrigerant evaporation process, and indoor set is realized refrigerating function.
Therefore, after moving on to the capillary in the former off-premises station on the indoor set, the refrigerant in the fairlead 6 of this embodiment is the high temperature, high pressure liquid of 35 deg.c.The fairlead 6 of high temperature can with extraneous direct heat transfer, play the effect of similar condenser.Because the length of the fairlead 6 between indoor set and off-premises station is generally about three meters, this will increase the exchange capability of heat of air-conditioning greatly, reduce the condensing pressure of the condenser of off-premises station.Because after capillary position changed, the refrigerating capacity of air-conditioning was constant basically, thereby the refrigeration consumed power can reduce greatly, and promptly the air-conditioning Energy Efficiency Ratio is improved.
Among this embodiment, owing to do not have capillary in the off-premises station 3, the connected fluorine process duct (not shown) of filling also can correspondingly be cancelled.Because cancelled the capillary of off-premises station and filled the fluorine process duct, off-premises station manufacturing process reduces, production efficiency is improved.In addition, because the silencing means 62 that capillary 63 is formed is just replaced the former minute distribution pipeline behind the fluid, therefore, the manufacturing process of indoor set and cost do not have to change basically.
Among this embodiment,, be higher than environment temperature, only can not absorb heat from the external world to extraneous heat release because the temperature of fairlead 6 is 35 deg.c.Therefore, fairlead need not wrap up heat-barrier material as existing air-conditioning, and the air-conditioning cost is minimized.
Among this embodiment, the high pressure refrigerant becomes low pressure behind capillary, and mobile noise is minimized.Therefore, the present invention changes the effect that capillary behind the position also plays noise reduction, and sound is littler when making the indoor set operation.
In addition, among this embodiment, owing in each branch road behind minute fluid 61 capillary 63 is arranged all, the uniformity of the multichannel throttling before the evaporimeter is better, than being easier to control.
Like Fig. 3, another embodiment shown in Figure 4, be the further improvement on embodiment illustrated in fig. 2.The pipe-line system of single refrigeration air-conditioner of this embodiment is made up of off-premises station 3, indoor set 9 and the sleeve pipe that is connected both 13.Off-premises station comprises compressor 1, condenser 2, stop valve 1 and stop valve 2 12, and condenser 2 directly is connected with stop valve 1.Indoor set comprises evaporimeter 8, divides fluid 61, nipple 1 and nipple 2 10.Divide fluid 61 and 8 in evaporimeter also to be provided with the silencing means 62 that capillary 63 is formed.In the evaporimeter 8, three are connected in parallel on 82 of silencing means 62 and discharges with heat exchanger tube 81, and promptly the front end of every heat exchanger tube 81 all connects a capillary 63.One end of fairlead 6 is connected on the stop valve 1 of off-premises station 3, and the other end is connected on the nipple 1 of indoor set 9.One end of sleeve pipe 13 is connected on the nipple 1, nipple 2 10 of indoor set 9, and the other end is connected on the stop valve 1, stop valve 2 12 of off-premises station 3.Off-premises station 3, indoor set 9, sleeve pipe 13 form closed circuit pipe-line system.Fairlead in the previous embodiment and return duct form the sleeve pipe 13 among this embodiment, and the interior pipe 131 of sleeve pipe is former return duct, and the outer tube 132 of sleeve pipe is former fairlead.Among this embodiment, condenser 2 is a finned heat exchanger, and its heat exchanger tube 21 adopts the inner screw thread copper pipe of Φ 9.52mm specification; Evaporimeter 8 is a finned heat exchanger, and its heat exchanger tube 81 adopts the inner screw thread copper pipe of Φ 7mm specification.The interior pipe 131 of sleeve pipe, the pipeline that the stop valve 2 12 of off-premises station and compressor are 1, the pipeline that the evaporimeter 8 of indoor set and nipple are 2 61, all adopting diameter D1 is the copper pipe of 10mm.The pipeline that the condenser 2 of off-premises station and stop valve are one 5, the pipeline that the branch fluid 61 of indoor set and nipple are one 7, all adopting diameter D2 is the copper pipe of 6mm.It is the copper pipe of 15mm that the outer tube 132 of sleeve pipe adopts diameter D3.
After single refrigeration air-conditioner started, refrigerant was flowing shown in arrow among Fig. 3, Fig. 4 in the pipe-line system.Gas coolant is compressed the steam of machine 1 boil down to HTHP; Steam is transported to the condenser 2 of off-premises station 3; Refrigerant cools off heat release, becomes the high temperature, high pressure liquid refrigerant; Liquid coolant through the branch fluid 61 of machine 9 in stop valve 5, the sleeve pipe 13 back inlet chambers, gets into evaporimeter 8 successively again behind the silencing means 62 that divides fluid 61 and be made up of capillary 63.Through evaporating, becoming low temperature and low pressure steam, advance again through sleeve pipe 13, stop valve 12 to come back to compressor 1, continue circulation next time.So reciprocation cycle absorbs great amount of heat in the refrigerant evaporation process, and indoor set is realized refrigerating function.
Because the temperature (10 deg.c) of interior pipe is lower, the temperature of outer tube (35 deg.c) is higher, and outer tube is fully cooled off by interior pipe, and the condensing pressure of condenser is minimized.Simultaneously, interior pipe pipe is heated by outer tube, and refrigerant pressure improves in it, and the evaporating pressure of evaporimeter is improved.Because condensing pressure reduces, evaporating pressure improves, the Energy Efficiency Ratio of air-conditioning is improved.
More than be one of embodiment of the present invention,, do not spend performing creative labour, on the basis of the foregoing description, can do multiple variation, can realize the object of the invention equally for those skilled in the art.But this variation obviously should be in the protection domain of claims of the present invention.

Claims (7)

1. the pipe-line system of single refrigeration air-conditioner; Mainly form by off-premises station (3), indoor set (9) and the fairlead that is connected both (6), return duct (11); Off-premises station comprises compressor (1), condenser (2), stop valve one (5) and stop valve two (12); Indoor set comprises evaporimeter (8), divides fluid (61), nipple one (7) and nipple two (10); It is characterized in that: (8) also are provided with the silencing means (62) that capillary (63) is formed between the branch fluid (61) of indoor set and evaporimeter, and the condenser of off-premises station (2) directly is connected with stop valve one (5).
2. the pipe-line system of single refrigeration air-conditioner as claimed in claim 1, it is characterized in that: condenser (2) is a finned heat exchanger, its heat exchanger tube (21) adopts the inner screw thread copper pipe of Φ 9.52mm specification; Evaporimeter (8) is a finned heat exchanger, and its heat exchanger tube (81) adopts the inner screw thread copper pipe of Φ 7mm specification.
3. the pipe-line system of single refrigeration air-conditioner as claimed in claim 2; It is characterized in that: the pipeline between condenser of off-premises station (2) and stop valve one (5); The branch fluid (61) of indoor set and the pipeline between nipple one (7), and fairlead (6) all to adopt nominal diameter be the copper pipe of 6mm; The stop valve two (12) of off-premises station and the pipeline between compressor (1), the pipeline between evaporimeter of indoor set (8) and nipple two (10), and return duct (11) all to adopt nominal diameter be the copper pipe of 10mm.
4. the pipe-line system of single refrigeration air-conditioner as claimed in claim 1 is characterized in that: above-mentioned fairlead (6) and return duct (11) form sleeve pipe (13), and the interior pipe (131) of sleeve pipe is a return duct, and the outer tube of sleeve pipe (132) is a fairlead.
5. the pipe-line system of single refrigeration air-conditioner as claimed in claim 4; It is characterized in that: the interior pipe (131) of sleeve pipe; The stop valve two (12) of off-premises station and the pipeline between compressor (1); Pipeline between evaporimeter of indoor set (8) and nipple two (10), all adopting diameter is the copper pipe of D1; Pipeline between condenser of off-premises station (2) and stop valve one (5), the branch fluid (61) of indoor set and the pipeline between nipple one (7), all adopting diameter is the copper pipe of D2; The diameter of the outer tube of sleeve pipe (132) is D3; Aforementioned D1 is 1.2~1.8 times of D2, and D3 is 1.3~3 times of D1.
6. the pipe-line system of single refrigeration air-conditioner as claimed in claim 1 is characterized in that: above-mentioned fairlead (6) and return duct (11) form sleeve pipe (13), and the interior pipe (131) of sleeve pipe is a fairlead, and the outer tube of sleeve pipe (132) is a return duct.
7. the pipe-line system of single refrigeration air-conditioner as claimed in claim 6; It is characterized in that: the stop valve two (12) of off-premises station and the pipeline between compressor (1); Pipeline between evaporimeter of indoor set (8) and nipple two (10), all adopting diameter is the copper pipe of D2; The interior pipe (131) of sleeve pipe, the pipeline between condenser of off-premises station (2) and stop valve one (5), the branch fluid (61) of indoor set and the pipeline between nipple one (7), all adopting diameter is the copper pipe of D1; The diameter of the outer tube of sleeve pipe (132) is D3; Aforementioned D1 is 0.5~0.8 times of D2, and D3 is 2.2~4 times of D1.
CN201110451611.4A 2011-12-30 2011-12-30 Pipeline system for single refrigeration air conditioner Active CN102519093B (en)

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Cited By (1)

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CN103032945A (en) * 2012-08-22 2013-04-10 深圳麦克维尔空调有限公司 Air conditioner gas bypass noise reduction method and structure

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CN102003850A (en) * 2010-12-10 2011-04-06 赵军 Energy efficiency improvement device for air conditioner
CN202024544U (en) * 2011-02-28 2011-11-02 赵军 Air conditioner multipoint gasification energy efficiency improving device
US20110289959A1 (en) * 2010-05-27 2011-12-01 Delphi Technologies, Inc. Air conditioning system having an improved internal heat exchanger
CN102478329A (en) * 2010-11-25 2012-05-30 乐金电子(天津)电器有限公司 Copper tube structure of subcooler for air conditioner outdoor unit

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CN101769660A (en) * 2010-01-11 2010-07-07 苏州恒兆空调节能科技有限公司 Throttling silencing device and throttling silencing air conditioner
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CN201731603U (en) * 2010-07-13 2011-02-02 海信(山东)空调有限公司 Air conditioner applying small silencer
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CN103032945A (en) * 2012-08-22 2013-04-10 深圳麦克维尔空调有限公司 Air conditioner gas bypass noise reduction method and structure
CN103032945B (en) * 2012-08-22 2016-08-24 深圳麦克维尔空调有限公司 Air-conditioning gas bypass noise-reduction method and structure

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Effective date of registration: 20170504

Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho

Patentee after: AUX air conditioning Limited by Share Ltd

Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166

Patentee before: Ningbo AUX Group.