CN104344599A - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN104344599A CN104344599A CN201310344521.4A CN201310344521A CN104344599A CN 104344599 A CN104344599 A CN 104344599A CN 201310344521 A CN201310344521 A CN 201310344521A CN 104344599 A CN104344599 A CN 104344599A
- Authority
- CN
- China
- Prior art keywords
- temperature heat
- heat exchanger
- exchanging
- conditioning system
- air
- 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.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 34
- 239000003507 refrigerant Substances 0.000 claims abstract description 41
- 230000008676 import Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 9
- 230000005494 condensation Effects 0.000 description 7
- 238000009833 condensation Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The present invention provides an air conditioning system comprising: the compressor, the medium temperature heat exchanger, the high temperature heat exchanger, the low temperature heat exchanger and the throttling device are communicated to form a refrigerant circulation loop, the medium temperature heat exchanger and the high temperature heat exchanger are connected in parallel, a branch where the medium temperature heat exchanger is located is a first branch, a branch where the high temperature heat exchanger is located is a second branch, and the compressor further comprises a first pressure reduction device which is arranged on the first branch and located between the medium temperature heat exchanger and an exhaust port of the compressor. The pressure reduction device is arranged in front of the medium-temperature heat exchanger of the air conditioning system, so that refrigerants with different pressures are provided for the medium-temperature heat exchanger and the high-temperature heat exchanger, the energy efficiency reduction caused by uneven distribution of the refrigerants is avoided, the system control is optimized, and the energy consumption is saved.
Description
Technical field
The present invention relates to field of Refrigeration and Air-conditioning, particularly relate to a kind of air-conditioning system.
Background technology
Along with the raising of people's living standard, also more and more various to the functional requirement of air-conditioning, current air-conditioning system is providing refrigeration or also can have the function providing hot water while heating.But, in current air-conditioning system, air-conditioning heating and water heating adopt same mode of operation, and in fact high pressure needed for air-conditioning heating, far below the high pressure of water heating, adopts a kind of control mode of mode of operation that a large amount of refrigerant will be caused to enter water heating heat exchanger like this, cause the reduction of air conditioning capacity, for ensureing air conditioning capacity, compressor needs to export more ability, and this just causes complete machine power too high, consumes energy too high.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, provides a kind of air-conditioning system, avoids the efficiency reduction that refrigerant skewness causes, optimizes Systematical control, save energy consumption.
Air-conditioning system disclosed by the invention, comprise: compressor, mid temperature heat exchanger, high-temperature heat-exchanging, cryogenic heat exchanger and throttling arrangement, described compressor, mid temperature heat exchanger, high-temperature heat-exchanging, cryogenic heat exchanger are communicated with formation refrigerant circulation circuit with throttling arrangement, described mid temperature heat exchanger and high-temperature heat-exchanging parallel connection, described mid temperature heat exchanger place branch road is the first branch road, described high-temperature heat-exchanging place branch road is the second branch road, also comprise the first dropping equipment, be arranged on described first branch road, between described mid temperature heat exchanger and exhaust outlet of compressor.
Preferably, also comprise the second dropping equipment, described second dropping equipment is arranged on the second branch road, between high-temperature heat-exchanging and exhaust outlet of compressor.
Preferably, described throttling arrangement is arranged on the main refrigerant loop between described cryogenic heat exchanger and described parallel branch.
Preferably, also flow regulator is provided with between described throttling arrangement and described mid temperature heat exchanger.
Preferably, also flow regulator is provided with between described throttling arrangement and described high-temperature heat-exchanging.
Preferably, described throttling arrangement comprises first throttle device and the second throttling arrangement, and described first throttle device is arranged on described first branch road, between mid temperature heat exchanger and described cryogenic heat exchanger; Described second throttling arrangement is arranged on described second branch road, between described high-temperature heat-exchanging and described cryogenic heat exchanger.
Preferably, flow regulator is provided with between described first throttle device and described mid temperature heat exchanger.
Preferably, flow regulator is provided with between described second throttling arrangement and described high-temperature heat-exchanging.
Preferably, described mid temperature heat exchanger import is provided with the first pressure sensor, and described exhaust outlet of compressor is provided with the second pressure sensor.
Preferably, described high-temperature heat-exchanging import is provided with the 3rd pressure sensor.
Air-conditioning system provided by the invention has following technique effect, by arranging dropping equipment before mid temperature heat exchanger, thus provide the refrigerant of different pressures for mid temperature heat exchanger and high-temperature heat-exchanging, the efficiency avoiding refrigerant skewness to cause reduces, optimize Systematical control, save energy consumption.
Accompanying drawing explanation
Fig. 1 is the system diagram in one of them embodiment of the present invention;
Fig. 2 is the system diagram in another embodiment of the present invention.
Number in the figure: 1 compressor; 21 first dropping equipments; 22 second dropping equipments; 31 mid temperature heat exchangers; 32 high-temperature heat-exchangings; 4 cryogenic heat exchangers; 5 throttling arrangements; 51 first throttle devices; 52 second throttling arrangements; 6 flow regulators; 61 first flow adjusting devices; 62 second quantity regulating devices; 10 first pressure sensors; 11 second pressure sensors; 12 the 3rd pressure sensors.
Detailed description of the invention
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
See the system diagram that Fig. 1, Fig. 1 are in one of them embodiment of the present invention.Air-conditioning system provided by the invention comprises: compressor 1, mid temperature heat exchanger 31, high-temperature heat-exchanging 32, cryogenic heat exchanger 4 and throttling arrangement 5, described compressor 1, mid temperature heat exchanger 31, high-temperature heat-exchanging 32, cryogenic heat exchanger 4 is communicated with formation refrigerant circulation circuit with throttling arrangement 5, wherein said mid temperature heat exchanger 31 and high-temperature heat-exchanging 32 parallel connection, described mid temperature heat exchanger 31 place branch road is the first branch road, described high-temperature heat-exchanging 32 place branch road is the second branch road, also comprise the first dropping equipment 21, be arranged on described first branch road, between described mid temperature heat exchanger 31 and compressor 1 exhaust outlet.
The working cycles flow process of above-mentioned air-conditioning system is: compressor air-discharging enters the first branch road and the second branch road respectively, the HTHP refrigerant entering the first branch road enters mid temperature heat exchanger 31 heat exchange after the first dropping equipment 21 step-down, the HTHP refrigerant entering the second branch road converges to main refrigerant loop with the first branch road refrigerant after high-temperature heat-exchanging 32 internal heat, cryogenic heat exchanger 4 heat absorption evaporation is entered after throttling arrangement 5 throttling, finally enter compressor from compressor air suction mouth, complete a working cycles.
This air-conditioning system is owing to being provided with the first dropping equipment 21 at mid temperature heat exchanger 31 entrance, thus the pressure of the HTHP refrigerant entering mid temperature heat exchanger 31 is regulated, pressure required for mid temperature heat exchanger 31 condensing condition is provided, prevent compressor air-discharging from entering mid temperature heat exchanger 31 in a large number simultaneously and cause high-temperature heat-exchanging 32 energy shortage, the increase of units consumption.
Above-mentioned first dropping equipment 21 can select capillary, also can select manual dropping valve, and HTHP refrigerant is lowered through capillary or step-down downstream pressure.
For reaching better control effects, the first dropping equipment 21 is preferably electric expansion valve.The first pressure sensor 10 is also provided with between described mid temperature heat exchanger 31 entrance and the first dropping equipment 21, first pressure sensor 10 is used for detecting the refrigerant pressure entering mid temperature heat exchanger 31, control the aperture of the first dropping equipment 21 according to the force value recorded, thus regulate the pressure of the refrigerant entered in mid temperature heat exchanger 31.
This air-conditioning system adopts frequency-changeable compressor, can realize the adjustment of the refrigerant pressure entering high-temperature heat-exchanging 32 by regulating the rotating speed of compressor 1.In order to improve the control effects to high-temperature heat-exchanging, the second branch road between high-temperature heat-exchanging 32 and compressor 1 exhaust outlet can arrange the second dropping equipment 22, directly be carried out the adjustment of high-temperature heat-exchanging entrance refrigerant pressure according to running situation by the second dropping equipment.
Further, second dropping equipment 22 is preferably electric expansion valve, compressor 1 exhaust outlet is provided with the second pressure sensor 11, the compressor air-discharging mouth pressure that second pressure sensor 11 detects equals the refrigerant pressure entering high-temperature heat-exchanging 32, and the aperture of force value to the second dropping equipment 22 that this air-conditioning system can detect according to the second pressure sensor 11 regulates.
Further, flow regulator 6 is provided with before throttling arrangement 5 in above-mentioned air-conditioning system, due to different with the refrigerant pressure that high-temperature heat-exchanging 32 flows out from mid temperature heat exchanger 31, so first carry out Flow-rate adjustment through flow regulator 6 before entering throttling arrangement 5, contribute to the stability improving restriction effect and system.Throttling arrangement 5 is preferably electric expansion valve, and flow regulator 6 is preferably electric expansion valve, also can be other common flow control valves such as capillary, hand-operated valve.
Wherein, described flow regulator 6 can be arranged on the first leg, and between mid temperature heat exchanger 31 and throttling arrangement 5, refrigerant after condensation, first carries out Flow-rate adjustment through flow regulator 6 and carries out throttling again in mid temperature heat exchanger 31; Described flow regulator 6 also can be arranged on the second branch road, and between high-temperature heat-exchanging 32 and throttling arrangement 5, refrigerant after condensation, first carries out Flow-rate adjustment through flow regulator 6 and carries out throttling again in high-temperature heat-exchanging 32; Described flow regulator 6 also can be arranged on main refrigerant loop, before being positioned at throttling arrangement 5 import, refrigerant first carries out Flow-rate adjustment through flow regulator 6 after condensation in high-temperature heat-exchanging 32 and mid temperature heat exchanger 31, then enters throttling arrangement 5 and carry out throttling.
See the system diagram that Fig. 2, Fig. 2 are in another embodiment of the present invention, in this embodiment, described throttling arrangement is two, and be respectively first throttle device 51 and the second throttling arrangement 52, first throttle device 51 arranges on the first leg; Second throttling arrangement 52 is arranged on described second branch road.Refrigerant in first branch road after condensation, flows into main refrigerant loop in mid temperature heat exchanger 31 after first throttle device 51 throttling, and the refrigerant in the second branch road after condensation, flows into main refrigerant loop in high-temperature heat-exchanging 32 after the second throttling arrangement 52 throttling.Enter cryogenic heat exchanger 4 after refrigerant after two-way reducing pressure by regulating flow converges, in cryogenic heat exchanger 4, get back to compressor after evaporation.By arranging throttling arrangement respectively on two branch roads, carry out reducing pressure by regulating flow respectively to two-way refrigerant, thus improve restriction effect, system is more steady.
Further, described flow regulator is two, first flow adjusting device 61 is provided with on the first leg between first throttle device 51 and mid temperature heat exchanger 31, refrigerant is in mid temperature heat exchanger 31 after condensation, first carry out Flow-rate adjustment through first flow adjusting device 61 and carry out throttling through first throttle device 51 again, thus further increase restriction effect, improve the stability of system.
Further, second branch road is provided with second quantity regulating device 62 between the second throttling arrangement 52 and high-temperature heat-exchanging 32, refrigerant is in high-temperature heat-exchanging 32 after condensation, first carry out Flow-rate adjustment through second quantity regulating device 62 and carry out throttling through the second throttling arrangement 52 again, thus further increase restriction effect, improve the stability of system.
See Fig. 1 and Fig. 2, for further optimization system controls, the import of described high-temperature heat-exchanging 32 is provided with the 3rd pressure sensor 12,3rd pressure sensor 12 detects the refrigerant pressure entering high-temperature heat-exchanging 32, second dropping equipment 22 is electric expansion valve, this air-conditioning system controls the aperture of the second dropping equipment 22 according to the force value recorded, thus regulates the refrigerant pressure entered in high-temperature heat-exchanging 32.
Air-conditioning system provided by the invention has following technique effect, by arranging dropping equipment before mid temperature heat exchanger, thus provide the refrigerant of different pressures for mid temperature heat exchanger and high-temperature heat-exchanging, the efficiency avoiding refrigerant skewness to cause reduces, optimize Systematical control, save energy consumption; Meanwhile, adopt different pressures branch road to carry out the mode of throttling respectively, improve restriction effect, improve the stationarity of system cloud gray model; In addition, by arranging flow regulator before throttling arrangement, optimizing the control of refrigerant further, improve the stationarity of system cloud gray model, improve the reliability of system.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. an air-conditioning system, comprise: compressor, mid temperature heat exchanger, high-temperature heat-exchanging, cryogenic heat exchanger and throttling arrangement, described compressor, mid temperature heat exchanger, high-temperature heat-exchanging, cryogenic heat exchanger are communicated with formation refrigerant circulation circuit with throttling arrangement, described mid temperature heat exchanger and high-temperature heat-exchanging parallel connection, described mid temperature heat exchanger place branch road is the first branch road, described high-temperature heat-exchanging place branch road is the second branch road, it is characterized in that, also comprise the first dropping equipment, be arranged on described first branch road, between described mid temperature heat exchanger and exhaust outlet of compressor.
2. air-conditioning system according to claim 1, is characterized in that, also comprises the second dropping equipment, and described second dropping equipment is arranged on the second branch road, between high-temperature heat-exchanging and exhaust outlet of compressor.
3. air-conditioning system according to claim 1 and 2, is characterized in that, described throttling arrangement is arranged on the main refrigerant loop between described cryogenic heat exchanger and described parallel branch.
4. air-conditioning system according to claim 3, is characterized in that, is also provided with flow regulator between described throttling arrangement and described mid temperature heat exchanger.
5. air-conditioning system according to claim 3, is characterized in that, is also provided with flow regulator between described throttling arrangement and described high-temperature heat-exchanging.
6. air-conditioning system according to claim 1 and 2, it is characterized in that, described throttling arrangement comprises first throttle device and the second throttling arrangement, and described first throttle device is arranged on described first branch road, between described mid temperature heat exchanger and described cryogenic heat exchanger; Described second throttling arrangement is arranged on described second branch road, between described high-temperature heat-exchanging and described cryogenic heat exchanger.
7. air-conditioning system according to claim 6, is characterized in that, is provided with flow regulator between described first throttle device and described mid temperature heat exchanger.
8. air-conditioning system according to claim 7, is characterized in that, is provided with flow regulator between described second throttling arrangement and described high-temperature heat-exchanging.
9. the air-conditioning system according to claim 1,2 or 8, is characterized in that, described mid temperature heat exchanger import is provided with the first pressure sensor, and described exhaust outlet of compressor is provided with the second pressure sensor.
10. air-conditioning system according to claim 9, is characterized in that, described high-temperature heat-exchanging import is provided with the 3rd pressure sensor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344521.4A CN104344599B (en) | 2013-08-08 | 2013-08-08 | Air conditioning system |
| PCT/CN2014/076880 WO2015018214A1 (en) | 2013-08-08 | 2014-05-06 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310344521.4A CN104344599B (en) | 2013-08-08 | 2013-08-08 | Air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104344599A true CN104344599A (en) | 2015-02-11 |
| CN104344599B CN104344599B (en) | 2018-10-26 |
Family
ID=52460612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310344521.4A Active CN104344599B (en) | 2013-08-08 | 2013-08-08 | Air conditioning system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104344599B (en) |
| WO (1) | WO2015018214A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992812A (en) * | 2022-06-17 | 2022-09-02 | 珠海格力电器股份有限公司 | Air conditioning system and control method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917067B (en) * | 2018-09-17 | 2023-07-18 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioning system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526280A (en) * | 2009-04-20 | 2009-09-09 | 广东志高空调有限公司 | Hot water air-conditioner |
| CN102829571A (en) * | 2011-06-15 | 2012-12-19 | 李思模 | Air conditioner with double condensers |
| CN102844630A (en) * | 2010-04-05 | 2012-12-26 | 三菱电机株式会社 | Air conditioning and hot-water supply composite system |
| CN103026150A (en) * | 2010-07-29 | 2013-04-03 | 株式会社日立制作所 | Air conditioning and hot-water supply system |
| CN203464540U (en) * | 2013-08-08 | 2014-03-05 | 珠海格力电器股份有限公司 | Air conditioning system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2139021A1 (en) * | 1994-12-23 | 1996-06-24 | Reinhold Kittler | Transferring heat from two different heat exchangers connected in series without the use of control valves |
| CN200958879Y (en) * | 2006-08-03 | 2007-10-10 | 邱致琏 | Frozen air-conditioner set improvement of economical frequency-variable hot pump |
| CN1936459A (en) * | 2006-10-14 | 2007-03-28 | 蔡志鸿 | Double electronic expansion-valve air-conditioning water-heating dual-purpose machine group |
-
2013
- 2013-08-08 CN CN201310344521.4A patent/CN104344599B/en active Active
-
2014
- 2014-05-06 WO PCT/CN2014/076880 patent/WO2015018214A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526280A (en) * | 2009-04-20 | 2009-09-09 | 广东志高空调有限公司 | Hot water air-conditioner |
| CN102844630A (en) * | 2010-04-05 | 2012-12-26 | 三菱电机株式会社 | Air conditioning and hot-water supply composite system |
| CN103026150A (en) * | 2010-07-29 | 2013-04-03 | 株式会社日立制作所 | Air conditioning and hot-water supply system |
| CN102829571A (en) * | 2011-06-15 | 2012-12-19 | 李思模 | Air conditioner with double condensers |
| CN203464540U (en) * | 2013-08-08 | 2014-03-05 | 珠海格力电器股份有限公司 | Air conditioning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114992812A (en) * | 2022-06-17 | 2022-09-02 | 珠海格力电器股份有限公司 | Air conditioning system and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015018214A1 (en) | 2015-02-12 |
| CN104344599B (en) | 2018-10-26 |
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