CN106885395A - A kind of Thermal Performance of Micro Channels device assembly and air-conditioning refrigeration system - Google Patents
A kind of Thermal Performance of Micro Channels device assembly and air-conditioning refrigeration system Download PDFInfo
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- CN106885395A CN106885395A CN201510940279.6A CN201510940279A CN106885395A CN 106885395 A CN106885395 A CN 106885395A CN 201510940279 A CN201510940279 A CN 201510940279A CN 106885395 A CN106885395 A CN 106885395A
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- heat exchanger
- supplementary
- air
- device assembly
- supplementary heat
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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
- F25B39/00—Evaporators; Condensers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of Thermal Performance of Micro Channels device assembly and air-conditioning refrigeration system, the Thermal Performance of Micro Channels device assembly includes microchannel main heat exchanger, also include supplementary heat exchanger, supplementary heat exchanger is set parallel with microchannel main heat exchanger, and supplementary heat exchanger is located at the windward side of microchannel main heat exchanger；Draught area of the draught area of the air channel unit of supplementary heat exchanger more than or equal to the air channel unit that the fin of microchannel main heat exchanger is formed with corresponding heat exchanger tube；So outside air first passes through supplementary heat exchanger heat exchange and then is cooled, greatly reduce with inside air moisture after supplementary heat exchanger heat exchange, it is i.e. relatively dry with the air that microchannel main heat exchanger carries out heat exchange, microchannel main heat exchanger surface frosting velocity is alleviated, the heat exchange efficiency of microchannel main heat exchanger is improved.Also, because the air channel unit of supplementary heat exchanger is than larger, even if supplementary heat exchanger surface forms frost, also it is not easy to block air channel unit, is conducive to passing through for air, it is ensured that system normal table runs.
Description
Technical field
The present invention relates to technical field of heat exchange, more particularly to a kind of Thermal Performance of Micro Channels device assembly and sky
Modulation cooling system.
Background technology
Heat exchanger is a kind of equipment that the partial heat of hot fluid is passed to cold fluid, is also called
Heat exchanger.Heat exchanger is in chemical industry, oil, power, food and other field industrial production
Occupy critical role, it aborning can be as heater, condenser, evaporator etc., should
With widely.
Wherein, micro-channel heat exchanger becomes currently as a kind of new and effective compact heat exchanger
The focus of research, and in air conditioning for automobiles and large commercial central air-conditioning started to be applied.
The primary structure of micro-channel heat exchanger is specific as follows.
Fig. 1 is refer to, Fig. 1 is a kind of structural representation of micro-channel evaporator of prior art.
Micro-channel evaporator mainly includes inlet header 1 ', outlet collection pipe 2 ', flat tube
3 ', fin 4 ', side plate 5 '.Refrigerant inlet 11 ' is provided with inlet header 1 ',
Refrigerant outlet 21 ' is provided with outlet collection pipe 2 '；Flat tube 3 ' is arranged parallel to each other,
Its both ends is engaged with inlet header 1 ' and outlet collection pipe 2 ' respectively；Fin 4 ' sets
Put middle in adjacent flat tube 3 ', air channel is formed between adjacent fins 4 ', recuperated gas flow through
Air channel carries out heat exchange with the agent of the internal refrigeration storage of flat tube 3 ' simultaneously.Side plate 5 ' and outermost layer fin
4 ' are engaged, and protect it from being damaged.
When above-mentioned micro-channel heat exchanger is used as evaporator, environment temperature than it is relatively low when
Wait, because its internal refrigeration storage agent temperature is likely lower than zero degree, the vapor in outside air may be analysed
For micro-channel heat exchanger surface, and then frost is formed, and the frosting velocity is especially fast, causes
Air channel blocks, so that the performance of heat exchanger is greatly reduced.
Although defrosting can recover heat exchanger performance, defrosting frequency is too high, and system can be caused again
Steady decrease, energy consumption increases.Increase fin height and adjacent fins spacing, although also can be one
Determine to alleviate frosting problem in degree, but can so cause heat exchanger performance to decline or exchanger body again
Product increase.
Therefore, the structure of existing micro-channel heat exchanger how is improved, heat exchanger system stabilization is taken into account
Property and heat exchange property, are those skilled in that art's technical problems urgently to be resolved hurrily.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of Thermal Performance of Micro Channels device assembly, including
Microchannel main heat exchanger, with some heat exchanger tubes and is arranged between the adjacent heat exchanger tube
Fin, the fin forms the air channel unit that some air feeds pass through with the heat exchanger tube, also includes
Supplementary heat exchanger, the supplementary heat exchanger has the air channel unit that some air feeds pass through, described auxiliary
Heat exchanger is helped to be set parallel with the microchannel main heat exchanger, and the supplementary heat exchanger is located at institute
State the windward side of microchannel main heat exchanger；The draught area of the air channel unit is more than the air channel
The draught area of unit.
When this paper microchannels main heat exchanger is used as evaporator, because of microchannel main heat exchanger
Windward side is provided with supplementary heat exchanger, such outside air before microchannel main heat exchanger is flowed through,
First pass through supplementary heat exchanger and exchanged heat and then cold with the heat transferring medium inside the heat exchanger
But, in cooling procedure, its interior section vapor will separate out the table to supplementary heat exchanger to air
Inside air moisture greatly reduces behind face, with supplementary heat exchanger heat exchange, i.e., with microchannel main heat exchange
The air that device carries out heat exchange is relatively dry, and microchannel main heat exchange is alleviated to a certain extent
Device surface frosting velocity, improves the heat exchange efficiency of microchannel main heat exchanger.
Also, because the air channel unit of supplementary heat exchanger is than larger, even if supplementary heat exchanger surface shape
Into frost, also it is not easy to block air channel unit, is conducive to passing through for air, it is ensured that
System normal table runs.
Optionally, the supplementary heat exchanger is micro-channel heat exchanger, including with lower component：
Two headers,
Some flat tubes, each flat tube is set in parallel between header described in two；
Fin, is arranged at the outer surface of the adjacent flat tube；
The fin surrounds the air channel of the supplementary heat exchanger with the outer surface of the corresponding flat tube
Unit.
Optionally, the supplementary heat exchanger is included with lower component：
Two headers；
Some heat exchanger tubes, the both ends of each heat exchanger tube are respectively communicated with described two headers；
The air channel unit of the supplementary heat exchanger is formed between the two adjacent heat exchanger tubes.
Optionally, the ventilating surface height of the supplementary heat exchanger, width are all higher than equal to described micro-
The ventilating surface height of passage main heat exchanger, width.
Optionally, the refrigerant flow path string of the microchannel main heat exchanger, the supplementary heat exchanger
Connection.
Optionally, away from the auxiliary heat-exchanging in two headers of the microchannel main heat exchanger
One of device is inlet header.
Optionally, the microchannel main heat exchanger, the supplementary heat exchanger refrigerant flow path simultaneously
Connection.
Optionally, the header inlet position of the supplementary heat exchanger is further provided with flow
Control valve, the refrigerant flow for controlling the inflow supplementary heat exchanger.
Additionally, present invention also offers a kind of air-conditioning refrigeration system, including compressor, condenser,
Throttling arrangement, evaporator, the evaporator are the micro-channel heat exchanger group described in any of the above-described
Part.
Optionally, the refrigerant of the condensator outlet outflow is successively through the throttling arrangement, institute
State supplementary heat exchanger, the microchannel main heat exchanger and flow back to the compressor.
Air-conditioning refrigeration system includes above-mentioned Thermal Performance of Micro Channels device assembly, therefore air-conditioning refrigeration system also has
There is the above-mentioned technique effect of Thermal Performance of Micro Channels device assembly, will not be described here.
Brief description of the drawings
Fig. 1 is a kind of structural representation of micro-channel evaporator of prior art；
Fig. 2 is the structural representation of Thermal Performance of Micro Channels device assembly in a kind of specific embodiment of the invention
Figure；
Fig. 3 is the structural representation of microchannel main heat exchanger of the present invention；
Fig. 4 is enlarged drawing at A in Fig. 3；
Fig. 5 is the structural representation of supplementary heat exchanger of the present invention；
Fig. 6 is the operation principle schematic diagram of air-conditioning refrigeration system in the first embodiment of the invention；
Fig. 7 is the operation principle schematic diagram of air-conditioning refrigeration system in second embodiment of the invention；
Fig. 8 is the operation principle schematic diagram of air-conditioning refrigeration system in the third embodiment of the invention；
Fig. 9 is the operation principle schematic diagram of air-conditioning refrigeration system in the 4th kind of embodiment of the invention.
Wherein, in Fig. 2 to Fig. 9：
Throttling arrangement 30, condenser 40, compressor 50, four-way reversing valve 60；
Microchannel main heat exchanger 1, header 11, header 12, heat exchanger tube 13, fin 14,
Air channel unit a；
Supplementary heat exchanger 2, the first header 21, the second header 22, flat tube 23, fin
24th, air channel unit b；
Connecting tube 3, flow control valve 4.
Specific embodiment
For the easy frosting technical problem in micro-channel heat exchanger surface present in prior art, this
Text proposes a kind of technical scheme for solving above-mentioned technical problem, is described in detail below.
In order that those skilled in the art more fully understands technical scheme, tie below
The present invention is described in further detail to close the drawings and specific embodiments.
Fig. 2 is refer to, Fig. 2 is Thermal Performance of Micro Channels device assembly in a kind of specific embodiment of the invention
Structural representation.
Herein so that Thermal Performance of Micro Channels device assembly is applied to air-conditioning refrigeration system as an example, skill is introduced
Art scheme and technique effect, certainly, it will be understood by those skilled in the art that presented herein
The application of Thermal Performance of Micro Channels device assembly be not limited to be described herein, can also be applied to other is
In system.
Air-conditioning refrigeration system mainly includes compressor 50, condenser 40, throttling arrangement 30, steaming
The parts such as hair device, according to the difference for realizing function, air-conditioning refrigeration system can be divided into single cooling system
And refrigerating and heating systems, single cooling system is only capable of realizing refrigerating function, as shown in figure 9, Fig. 9 shows
The fundamental diagram of single cooling system is gone out.Refrigerating and heating systems are to be capable of achieving refrigeration, again can be real
Now heat, as Figure 6-Figure 8, Fig. 6-Fig. 8 is the fundamental diagram of refrigerating and heating systems.
From above-mentioned figure as can be seen that refrigerating and heating systems can realize its refrigeration and heat-production functions be due to
Four-way reversing valve 60 is increased in system.
By taking Fig. 6 as an example, when air-conditioning refrigeration system heats work, refrigerant is from compressor 50
Outlet flow out into inside condenser 40, condensed device 40 is exchanged heat with room air,
Room air heat temperature raising, the outlet outflow of refrigerant condenser 40 after heat exchange are filled through throttling
30 inflow Thermal Performance of Micro Channels device assemblies are put, is flowed through empty with the external world in micro-channel heat exchanger component process
Gas heat exchange heats up, and finally flows back to compressor 50 from the outlet of Thermal Performance of Micro Channels device assembly.
Thermal Performance of Micro Channels device assembly herein includes microchannel main heat exchanger 1 and supplementary heat exchanger
2, the structure of microchannel main heat exchanger 1 can describe essentially identical with background technology, please join in the lump
Fig. 3 is examined, microchannel main heat exchanger 1 includes collector 11, collector 12, heat exchanger tube 13, fin
14, fin 14 is arranged between adjacent heat exchange tubes 13, and fin 14 and the shape of heat exchanger tube 13
The air channel unit a passed through into some air feeds.Before supplementary heat exchanger 2 and microchannel main heat exchanger 1
It is parallel afterwards to set, and supplementary heat exchanger 2 is located at the windward side of microchannel main heat exchanger 1, Fig. 2
Middle arrow is air intake direction；Supplementary heat exchanger 2 has the air channel unit b that some air feeds pass through,
And the draught area of the air channel unit b of supplementary heat exchanger 2 is more than the wing of microchannel main heat exchanger 1
The draught area of piece and heat exchanger tube are formed air channel unit a.
It is to be understood that the minimum ventilating duct of air channel unit specifically described herein for heat exchanger,
Minimum ventilating duct is typically surrounded by fin, heat exchanger tube or adjacent heat exchange tubes are surrounded.Heat exchanger tube has
Several air channel units, air carries out heat with the agent of heat exchanger tube internal refrigeration storage simultaneously by air channel unit
Exchange.
When this paper microchannels main heat exchanger 1 is used as evaporator, because of microchannel main heat exchanger
1 windward side is provided with supplementary heat exchanger 2, and such outside air is flowing through microchannel main heat exchanger
Before 1, first pass through supplementary heat exchanger 2 and exchanged heat with the heat transferring medium inside the heat exchanger
And then it is cooled, in cooling procedure, its interior section vapor will be separated out to auxiliary and changed air
The surface of hot device 2, with supplementary heat exchanger 2 exchange heat after inside air moisture greatly reduce, i.e., with
The air that microchannel main heat exchanger 1 carries out heat exchange is relatively dry, alleviates to a certain extent
Microchannel main heat exchanger 1 surface frosting velocity, improves the heat exchange of microchannel main heat exchanger 1
Efficiency.
Also, because supplementary heat exchanger 2 air channel unit b draught area than larger, even if auxiliary
Help the surface of heat exchanger 2 to form frost, be also not easy to block air channel unit b, be conducive to sky
Gas is passed through, it is ensured that system normal table runs.
Specifically, the specific size of the air channel unit of supplementary heat exchanger 2 can be answered according to specific
Depending on environment, as long as system normal table can be maintained to run and suppress micro- logical to a certain extent
The frosting velocity of road main heat exchanger 1.
The form of supplementary heat exchanger 2 can be by diversified forms, and supplementary heat exchanger 2 can be micro- logical
Road heat exchanger, as shown in figures 2 and 5, structure and the microchannel main heat exchanger of supplementary heat exchanger 2
1 composition is substantially similar, and shape can be with identical, it is also possible to different.Supplementary heat exchanger 2 is specific
Including with lower component：Two headers, some flat tubes 23, fins 24；Two header difference
The connected entrance for connecting exterior line is offered, is gone out respectively as refrigerant inlet and refrigerant
Mouthful, two headers can be arranged in parallel up and down, and two headers are respectively defined as into the first collection herein
The header 22 of flow tube 21 and second, some flat tubes 23, each flat tube 23 is set in parallel in the first collection
Between the header 22 of flow tube 21 and second；Fin 24, is arranged at the appearance of adjacent flat tube 23
Face；Fin 24 surrounds the air channel unit of supplementary heat exchanger 2 with the outer surface of corresponding flat tube 23.
Supplementary heat exchanger 2 can also be pipe heat exchanger, specific as follows.
In another specific embodiment, supplementary heat exchanger 2 is included with lower component：Two collection
Flow tube, some heat exchanger tubes；The both ends of each heat exchanger tube are respectively communicated with two headers；It is auxiliary
The air channel unit of heat exchanger 2 is helped to be formed between the two adjacent heat exchanger tubes.In present embodiment
The air channel of supplementary heat exchanger 2 is formed between heat exchanger tube, and than larger, air channel is not easy to block up size
Plug, the stability of a system is higher.
Preferential, the ventilating surface height of the supplementary heat exchanger 2 in the various embodiments described above, width are equal
More than or equal to ventilating surface height, the width of microchannel main heat exchanger 1.That is supplementary heat exchanger 2
Ventilating surface can cover the ventilating surface of microchannel main heat exchanger 1, so with microchannel main heat exchanger
The air of 1 heat exchange is entirely to be exchanged heat dry gas by supplementary heat exchanger 2, makes microchannel master
The frosting of heat exchanger 1 is relatively uniform.
In the various embodiments described above, microchannel main heat exchanger 1, the cold-producing medium stream of supplementary heat exchanger 2
Road can connect, that is to say, that the connected entrance of the header 11 of microchannel main heat exchanger 1 and auxiliary
The connected entrance of the second header 22 of heat exchanger 2 is connected by connecting tube 3, and refrigerant can be according to
It is secondary flow through microchannel main heat exchanger 1, supplementary heat exchanger 2 or flow through successively supplementary heat exchanger 2,
Microchannel main heat exchanger 1.This paper preferred embodiments flow through supplementary heat exchanger 2, micro- successively for refrigerant
Passage main heat exchanger 1.
In order to heighten the heat exchange efficiency of heat exchanger assembly, two affluxs of microchannel main heat exchanger 1
In pipe away from one of supplementary heat exchanger 2 be inlet header, as shown in Fig. 2 header 11
It is inlet header, header 12 is outlet collection pipe, and the flow direction of refrigerant is preferred：Refrigeration
Agent is flowed into by the first header 21 of supplementary heat exchanger 2, by the second header 22 after heat exchange
Outflow, the header 11 of microchannel main heat exchanger 1 is flowed into by connecting tube 3, finally by afflux
Pipe 12 flow to outside condenser.
Certainly, microchannel main heat exchanger 1, both supplementary heat exchangers 2 can also be in parallel, i.e., micro-
The connected entrance of two headers of passage main heat exchanger 1 can respectively pass through pipeline and supplementary heat exchanger
The connected entrance connection of 2 two headers, the refrigerant point two-way of condenser 40 flows separately through micro- leading to
Road main heat exchanger 1, supplementary heat exchanger 2, flow through microchannel main heat exchanger 1, supplementary heat exchanger 2
Converge inflow compressor 50 again afterwards.
When in parallel for microchannel main heat exchanger 1, both supplementary heat exchangers 2, supplementary heat exchanger
2 header inlet position is further provided with flow control valve 4, for controlling to flow into auxiliary
The refrigerant flow of heat exchanger 2.Flow control valve 4 can be electrically-controlled valve, be advantageously implemented and be
The Automated condtrol of system.Also, according to specific environment temperature, control the valve port of flow control valve
Aperture, to maximize optimization system integral working.
Certainly, the refrigerant that the heat transferring medium of supplementary heat exchanger 2 may not be in system is flowed through,
Can be extraneous other low-temperature receivers.
On the basis of above-mentioned Thermal Performance of Micro Channels device assembly, a kind of air conditioner refrigerating is also provided herein
System, air-conditioning refrigeration system includes above-mentioned Thermal Performance of Micro Channels device assembly, therefore air-conditioning refrigeration system
Above-mentioned technique effect with Thermal Performance of Micro Channels device assembly, will not be described here.
The other structures of air-conditioning refrigeration system refer to prior art, will not be described here.
Above to a kind of Thermal Performance of Micro Channels device assembly provided by the present invention and air-conditioning refrigeration system
It is described in detail.Specific case used herein is to principle of the invention and implementation method
Be set forth, the explanation of above example be only intended to help understand the method for the present invention and its
Core concept.It should be pointed out that for those skilled in the art, not taking off
On the premise of the principle of the invention, some improvement and modification can also be carried out to the present invention, these
Improve and modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
1. a kind of Thermal Performance of Micro Channels device assembly, including：
Microchannel main heat exchanger (1), with some heat exchanger tubes (13) and is arranged at adjacent institute
State the fin (14) between heat exchanger tube (13), the fin (14) and the heat exchanger tube (13)
Form air channel unit (a) that some air feeds pass through, it is characterised in that
Also include supplementary heat exchanger (2), the supplementary heat exchanger (2) is logical with some air feeds
Air channel unit (b) crossed, the supplementary heat exchanger (2) and the microchannel main heat exchanger (1)
It is parallel to set, and the supplementary heat exchanger (2) is positioned at the microchannel main heat exchanger (1)
Windward side；The draught area of air channel unit (b) is logical more than air channel unit (a)
Wind area.
2. Thermal Performance of Micro Channels device assembly as claimed in claim 1, it is characterised in that described
Supplementary heat exchanger (2) is micro-channel heat exchanger, including with lower component：
Two headers,
Some flat tubes (23), each flat tube (23) be set in parallel in header described in two it
Between；
Fin (24), is arranged between the adjacent flat tube (23)；
The fin (24) surrounds the auxiliary and changes with the outer surface of the corresponding flat tube (23)
Air channel unit (b) of hot device (2).
3. Thermal Performance of Micro Channels device assembly as claimed in claim 1, it is characterised in that described
Supplementary heat exchanger (2) is including with lower component：
Two headers；
Some heat exchanger tubes, the both ends of each heat exchanger tube are respectively communicated with described two headers；
Air channel unit (b) of the supplementary heat exchanger (2) is formed at the two adjacent heat exchanger tubes
Between.
4. the Thermal Performance of Micro Channels device assembly as described in any one of claims 1 to 3, its feature
It is that the ventilating surface height of the supplementary heat exchanger (2), width are all higher than micro- logical equal to described
The ventilating surface height of road main heat exchanger (1), width.
5. the Thermal Performance of Micro Channels device assembly as described in any one of claims 1 to 3, its feature
It is, the microchannel main heat exchanger (1), the refrigerant flow path of the supplementary heat exchanger (2)
Series connection.
6. Thermal Performance of Micro Channels device assembly as claimed in claim 5, it is characterised in that described
Away from the one of the supplementary heat exchanger (2) in two headers of microchannel main heat exchanger (1)
Person is inlet header.
7. the Thermal Performance of Micro Channels device assembly as described in any one of claims 1 to 3, its feature
It is, the microchannel main heat exchanger (1), the refrigerant flow path of the supplementary heat exchanger (2)
It is in parallel.
8. Thermal Performance of Micro Channels device assembly as claimed in claim 7, it is characterised in that described
The header inlet position of supplementary heat exchanger (2) is further provided with flow control valve (4),
Refrigerant flow for controlling the inflow supplementary heat exchanger (2).
9. air-conditioning refrigeration system, including compressor (50), condenser (40), throttling arrangement,
Evaporator, it is characterised in that the evaporator is micro- described in any one of claim 1 to 8
Channel for heat exchange device assembly.
10. air-conditioning refrigeration system as claimed in claim 9, it is characterised in that the condensation
Device (40) outlet outflow refrigerant successively through the throttling arrangement, the supplementary heat exchanger (2),
The microchannel main heat exchanger (1) flows back to the compressor (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940279.6A CN106885395A (en) | 2015-12-15 | 2015-12-15 | A kind of Thermal Performance of Micro Channels device assembly and air-conditioning refrigeration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940279.6A CN106885395A (en) | 2015-12-15 | 2015-12-15 | A kind of Thermal Performance of Micro Channels device assembly and air-conditioning refrigeration system |
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Family
ID=59174031
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108413801A (en) * | 2018-05-16 | 2018-08-17 | 南昌大学 | A kind of separate type microchannel heat sink |
| CN110579014A (en) * | 2019-09-03 | 2019-12-17 | 青岛海信日立空调系统有限公司 | Heat exchange device and control method and control device thereof |
| CN112204312A (en) * | 2018-06-11 | 2021-01-08 | 三菱电机株式会社 | Outdoor unit of air conditioner and air conditioner |
| CN112902304A (en) * | 2021-01-29 | 2021-06-04 | 艾泰斯热系统研发（上海）有限公司 | Heat exchanger and air conditioning system |
| CN115371463A (en) * | 2022-08-03 | 2022-11-22 | 西安交通大学 | Double-row micro-channel heat exchanger and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108413801A (en) * | 2018-05-16 | 2018-08-17 | 南昌大学 | A kind of separate type microchannel heat sink |
| CN112204312A (en) * | 2018-06-11 | 2021-01-08 | 三菱电机株式会社 | Outdoor unit of air conditioner and air conditioner |
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| CN110579014A (en) * | 2019-09-03 | 2019-12-17 | 青岛海信日立空调系统有限公司 | Heat exchange device and control method and control device thereof |
| CN112902304A (en) * | 2021-01-29 | 2021-06-04 | 艾泰斯热系统研发（上海）有限公司 | Heat exchanger and air conditioning system |
| CN115371463A (en) * | 2022-08-03 | 2022-11-22 | 西安交通大学 | Double-row micro-channel heat exchanger and control method thereof |
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Effective date of registration: 20191028 Address after: 310018 289-1, No.12 Baiyang street, Hangzhou Economic and Technological Development Zone, Zhejiang Province Applicant after: Sanhua Micro Channel Heat Exchanger Inc. Address before: 310018 -3, No. 12, No. 289, Baiyang street, Hangzhou economic and Technological Development Zone, Hangzhou, Zhejiang Applicant before: HANGZHOU SANHUAJIA ELECTROTHERMAL MANAGEMENT SYSTEM CO., LTD. |
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