CN206177081U - Coiled pipe microchannel heat exchanger - Google Patents
Coiled pipe microchannel heat exchanger Download PDFInfo
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- CN206177081U CN206177081U CN201621165841.9U CN201621165841U CN206177081U CN 206177081 U CN206177081 U CN 206177081U CN 201621165841 U CN201621165841 U CN 201621165841U CN 206177081 U CN206177081 U CN 206177081U
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Abstract
The utility model discloses a coiled pipe microchannel heat exchanger, include: two pressure manifolds and a plurality of flat pipe. Every pressure manifold all includes the body and establishes the end cover at the body both ends respectively, is equipped with a plurality of openings on the body, and the long limit of every opening is directly perpendicular with the axial direction of corresponding pressure manifold. A plurality of flat tub of parallel connection are between two pressure manifolds, and every flat pipe wriggles and extends. According to the utility model discloses a coiled pipe microchannel heat exchanger to same imported pressure manifold and export pressure manifold are shareed to the multithread way that allies oneself with, can subtract short single individual refrigerant flow path's length, in order to reach the purpose that reduces heat exchanger refrigerant side flow resistance and pressure drop. The refrigerating system who uses this heat exchanger is when compressor power is specified, because the refrigerant side pressure drop reduces, the multiplicable refrigerant and the difference in temperature that the air inclined improve heat exchange efficiency. In addition, still can enlarge coiled pipe microchannel heat exchanger's application scenario.
Description
Technical field
This utility model is related to technical field of heat exchange, in particular it relates to a kind of coil micro-channel heat exchanger.
Background technology
In recent decades, air conditioner industry fast development, and heat exchanger is used as one of the key component of air-conditioning, it is also desirable to
Optimization design is improved according to the requirement in terms of market.Micro-channel heat exchanger have high cooling efficiency, small volume, it is lightweight,
The features such as voltage endurance capability is strong, can very well meet the requirement in market.
Micro-channel heat exchanger is mainly made up of micro-channel flat, radiating fin and header.At the two ends of micro-channel flat
Header is provided with, for distributing and collecting cold-producing medium.Corrugated is provided between adjacent micro-channel flat or with shutter
The radiating fin of shape, to enhanced heat exchange device and the heat exchange efficiency of air side.
Coil micro-channel heat exchanger is that on the basis of common micro-channel heat exchanger, what is developed a kind of new changes
Hot device.The single flat tube of microchannel coil heat exchanger is longer, and the flow process of cold-producing medium is larger, therefore coil heat exchanger is often made
Cryogen side pressure drop is excessive.When the compressor horsepower of refrigeration system is specified, refrigerant side pressure drops cross conference affects the refrigeration of heat exchanger
Agent condensation temperature or evaporating temperature, cold-producing medium reduces notable with the temperature difference of air side, and heat exchange efficiency is reduced, and heat exchange amount is unsatisfactory for will
Ask, be limited microchannel coil heat exchanger application scenario.
Utility model content
This utility model is intended at least to solve to a certain extent one of technical problem in correlation technique.For this purpose, this reality
With a kind of coil micro-channel heat exchanger for shortening refrigerant flow circuit, reducing refrigerant side pressure drops of new proposition.
According to a kind of coil micro-channel heat exchanger of the present utility model, including：Two headers, each described header
Include body and be respectively provided at the end cap at the body two ends, the body is provided with multiple openings, each described circulation
The long side in hole is directly vertical with the axial direction of the corresponding header；Multiple flat tubes, the plurality of flat tube is connected in institute in parallel
State between two headers, each described flat tube wriggles and extends, the two ends of each flat tube respectively with described two headers
On the opening be connected correspondingly.
It is in parallel by the flat tube for arranging many parallel connections according to the coil micro-channel heat exchanger of this utility model embodiment
Many streams share same inlet header and outlet collection pipe, the length of single refrigerant flow path can be shortened, to reduce
The resistance of heat exchanger refrigerant effluent and the purpose of pressure drop.Using the refrigeration system of the heat exchanger when compressor horsepower is specified, due to
Refrigerant side pressure drops reduce, and can increase the temperature difference of cold-producing medium and air side, improve heat exchange efficiency.In addition, can also expand coil
The application scenario of micro-channel heat exchanger.
In certain embodiments, on each described header the axis of the plurality of opening in the corresponding header
Cross section upslide shade overlap.
In certain embodiments, when the axis of the plurality of opening is on the cross section of the corresponding header
When angle between projection is 0 degree, the plurality of flat tube is extended in the same direction, and the axis of the plurality of flat tube is generally aligned in the same plane
On.
In other specific embodiments, when on each described header, at least axis of two openings
When the angle on the cross section of the corresponding header between projection is 180 degree, corresponding described two flat tubes are oppositely extending,
And the axis of corresponding described two flat tubes is in the same plane.
In further embodiments, the plurality of opening staggers in the circumferential setting on each described header.
In certain embodiments, the axis of each flat tube forms an axial plane, per two neighboring institute
The angle between the axial plane of flat tube is stated more than 0 degree and less than or equal to 180 degree.
In certain embodiments, it is provided with fin between the flat tube.
In certain embodiments, when the axis of the plurality of opening is on the cross section of the corresponding header
When angle between projection is 0 degree, the axis distance between centers of tracks of the every two neighboring opening on the header is equal to, one
The height sum of the thickness of the flat tube and the fin.
In other specific embodiments, when the plurality of opening staggers in the circumferential setting on each described header
When, the axis distance between centers of tracks of the every two neighboring opening on the header is more than the thickness of a flat tube.
In certain embodiments, described two headers are coaxial and be spaced apart and arrange, described two affluxs on axial direction
Hollow area is limited between pipe, the part bending segment of described two flat tubes is located in the hollow area.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or by it is of the present utility model practice recognize.
Description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from the description with reference to accompanying drawings below to embodiment
Become obvious and easy to understand, wherein：
Fig. 1 is the structural representation of the coil micro-channel heat exchanger according to this utility model embodiment one；
Fig. 2 is the exploded view according to header in this utility model one embodiment；
Fig. 3 is the exploded view according to header in this utility model another embodiment；
Fig. 4 is the structural representation of the coil micro-channel heat exchanger according to this utility model embodiment two；
Fig. 5 is the axonometric chart of Fig. 4 middle tube bodies；
Fig. 6 is the front view of Fig. 4 bodys；
Fig. 7 is the structural representation of the coil micro-channel heat exchanger according to this utility model embodiment three；
Fig. 8 is the axonometric chart of Fig. 7 middle tube bodies.
Reference：
Coil micro-channel heat exchanger 100,
Header 1, body 101, import and export 1011, inlet/outlet pipe 1012, end cap 102, inlet header 11, outlet collection pipe
12nd, opening 13, hollow area 17,
Flat tube 2, straight length 21, bending segment 23,
Fin 3, adapter 4.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element is represented to same or similar label eventually or the element with same or like function.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining this utility model embodiment, and it is not intended that to this reality
With the restriction of new embodiment.
The coil micro-channel heat exchanger 100 according to this utility model embodiment is described below with reference to Fig. 1-Fig. 8.
According to the coil micro-channel heat exchanger 100 of this utility model embodiment, as shown in figure 1, including：Two headers
1 and multiple flat tubes 2.Each header 1 includes body 101 and is respectively provided at the end cap 102 at the two ends of body 101, on body 101
Multiple openings 13 are provided with, the long side of each opening 13 is perpendicular with the axial direction of corresponding header 1.Multiple flat tubes 2
Be connected in parallel between two headers 1, each flat tube 2 wriggles and extends, the two ends of each flat tube 2 respectively with two headers 1
On opening 13 be connected correspondingly.
Specifically, as shown in figure 1, two headers 1 are respectively inlet header 11 and outlet collection pipe 12, each afflux
Adapter 4 is connected with pipe 1, multiple flat tubes in parallel 2 are connected between inlet header 11 and outlet collection pipe 12.Between flat tube 2
Matched fin 3 can be arranged.Cold-producing medium Jing inlet headers 11 flow into multiple flat tubes 2, and cold-producing medium flows in multiple flat tubes 2
With outside air heat exchange during dynamic, then flow out flat tube 2 and flow out in outlet collection pipe 12.
Specifically, single flat tube 2 is longer in coil micro-channel heat exchanger 100, therefore, every flat tube 2 be required to through
Repeatedly bending.In coil micro-channel heat exchanger disclosed in prior art, a flat tube is only set in usual heat exchanger, cause refrigeration
Agent path is long.
According to the coil micro-channel heat exchanger 100 of this utility model embodiment, by the flat tube 2 for arranging many parallel connections,
Many streams in parallel share same inlet header 11 and outlet collection pipe 12, can shorten the length of single refrigerant flow path, with
Reduce the purpose of the resistance of heat exchanger refrigerant effluent and pressure drop.Refrigeration system using the heat exchanger is specified in compressor horsepower
When, because refrigerant side pressure drops reduce, the temperature difference of cold-producing medium and air side can be increased, improve heat exchange efficiency.In addition, can also expand
The application scenario of coil micro-channel heat exchanger 100.
Specifically, the body 101 of each header 1 is formed as the pipe of both ends open, and body 101 is with diameter greater than circulation
The long edge lengths in hole 13, two end caps 102 are covered respectively at the two ends of body 101.
In some instances, as shown in Fig. 2 each end cap 102 can be formed towards the unlimited tubular in the direction of body 101,
The external diameter of end cap 102 is enclosed within body 101 more than the external diameter of body 101 outside the outer peripheral edge of end cap 102.
In other examples, as shown in figure 3, each end cap 103 can be got lodged in the mouth of pipe of body 101, each end cap 102
May be formed at away from the unlimited tubular in the side of body 101, the external diameter of end cap 102 is equal to the internal diameter of body 101, outside end cap 102
Periphery is fitted on the internal perisporium of body 101.
The import and export 1011 of header 1 are located on body 101, and importing and exporting 1011 is used to flow into or out header 1.Separately
Outward, as shown in Fig. 3 and Fig. 1, the inlet/outlet pipe 1012 that correspondence imports and exports 1011 can be formed on the periphery wall of body 101, cold-producing medium leads to
Cross inlet/outlet pipe 1012 and flow into or out header 1, adapter 4 is attached on inlet/outlet pipe 1012.
More specifically, due in coil micro-channel heat exchanger 100 single flat tube 2 it is longer, therefore, every flat tube 2 is both needed to
Will be through repeatedly bending.The sinuous extension that flat tube 2 can be as shown in Figure 1 is often gone up, every flat tube 2 can repeatedly be bent into multiple straight tubes
Section 21 and the bending segment 23 being connected between straight length 21, multiple straight lengths 21 can form at least one tube layer, in each tube layer
Multiple straight lengths 21 are parallel to each other.
In this utility model embodiment, on header 1 during the arrangement change in location of opening 13, multiple flat tubes 2 can
It is arranged into multiple structural forms.Can be provided between flat tube 2 under fin 3, therefore different structure form, be affected by the setting of fin 3
Spacing on header 1 between adjacent opening 13 also can be varied from.
In certain embodiments, when the axis of multiple openings 13 projects on the cross section of corresponding header 1
Between angle when being 0 degree, the axis distance between centers of tracks of the every two neighboring opening 13 on header 1 is equal to, the thickness of flat tube
The height sum of degree and fin.That is, the gap between two neighboring flat tube 2 can arrange fin 3 just.
In other specific embodiments, when on each header 1 multiple openings 13 stagger in the circumferential setting when, collection
Thickness of the axis distance between centers of tracks of the every two neighboring opening 13 in flow tube 1 more than a flat tube 2.That is, working as header 1
When upper multiple openings 13 stagger in the circumferential, fin 3 is no longer set between different flat tubes 2 at neighbouring header 1, now header
It is spaced apart between 1 two neighboring opening 13.
Alternatively, reinforcement (not shown) can be connected between at least two openings 13 on each header 1, be strengthened
The setting of muscle can strengthen bearing capacity.
Below with reference to the accompanying drawings describe coil microchannel in the multiple specific embodiments according to this utility model embodiment to change
The structure of hot device 100.
Embodiment one
Fig. 1 illustrates the structure of coil micro-channel heat exchanger 100 in embodiment one.
In embodiment one, coil micro-channel heat exchanger 100 includes the inlet header 11 being parallel to each other and outlet collection
Flow tube 12, two headers 1 are respectively formed as pipe, and each header 1 is provided with two openings 13, two openings 13
Axis overlaps in the cross section upslide shade of corresponding header 1, specifically, two openings 13 on each header 1
When angle of the axis between projection on the cross section of header 1 is 0 degree, it may also be said to, two circulations on each header 1
The axially spaced setting in hole 13.
Specifically, two flat tubes 2 are extended in the same direction, and the axis of two flat tubes 2 is in the same plane, two flat tubes 2
A tube layer is formed, fin 3, the gap between two neighboring straight length 21 are provided between the adjacent straight length 21 of two flat tubes 2
Equal to the height of a fin 3, the gap between corresponding two bending segments 23 is also equal to the height of a fin 3.
As shown in figure 1, two flat tubes 2 are respectively formed multiple straight lengths 21 and multiple bending segments 23, two flat tubes 2 it is multiple straight
Pipeline section 21 be arranged in parallel correspondingly, and multiple bending segments 23 of two flat tubes 2 are also corresponded.
In this embodiment, bend around the long side of flat tube cross section in bending with flat tube in tube layer 2, so same tube layer
The axis of multiple straight lengths 21 of interior flat tube 2 is respectively positioned in same plane.
Specifically, the bending segment 23 of each flat tube 2 is all formed as circular arc of the central angle equal to 180 degree, two phases of flat tube 2
Corresponding two bending segments 23 are coaxially disposed.
In FIG, two flat tubes 2 are arranged in a row, two streams arranged side by side are formed, with the single flat tube for waiting front face area
Heat exchanger is compared, and the length of single flat tube 2 about reduces half in the embodiment, so as to the single flow path length of heat exchanger refrigerant
Reduce half.
Embodiment two
Fig. 4-Fig. 6 illustrates the structure of coil micro-channel heat exchanger 100 in embodiment two.
In embodiment two, coil micro-channel heat exchanger 100 includes the inlet header 11 being parallel to each other and outlet collection
Flow tube 12, two headers 1 are respectively formed as pipe, and each header 1 is provided with two openings 13, on each header 1
Two openings 13 stagger in the circumferential setting.
In embodiment two, the axis of two openings 13 overlaps in the cross section upslide shade of corresponding header 1, tool
For body, as shown in Figure 5 and Figure 6, cross section upslide of the axis of two openings 13 in header 1 on each header 1
When angle between shadow is 180 degree, it may also be said to, cross section upslide of two openings 13 in header 1 on each header 1
Shadow centrosymmetry.
Specifically, two flat tubes 2 are oppositely extending, and the axis of two flat tubes 2 is in the same plane, two flat tubes 2
A tube layer is formed, fin 3 is not set between two flat tubes 2, between the adjacent straight length 21 of same flat tube 2 fin 3 is provided with.It is same
Gap between the two neighboring straight length 21 of flat tube 2 is equal to the height of a fin 3.
As shown in figure 4, two flat tubes 2 are respectively formed multiple straight lengths 21 and multiple bending segments 23, two flat tubes 2 it is multiple straight
Pipeline section 21 is arranged in parallel, and multiple bending segments 23 of two flat tubes 2 are also corresponded.
In this embodiment, bend around the long side of flat tube cross section in bending with flat tube in tube layer 2, so same tube layer
The axis of multiple straight lengths 21 of interior flat tube 2 is respectively positioned in same plane.
Specifically, the bending segment 23 of each flat tube 2 is all formed as circular arc of the central angle equal to 180 degree, two phases of flat tube 2
It is in opposite direction that corresponding two bending segments 23 bend.
In embodiment two, two headers 1 are coaxial and are spaced apart setting, axially limit between upper two headers 1
Hollow area 17, the part bending segment 23 of two flat tubes 2 is located in hollow area 17.Heat exchanger so on the one hand can be made full use of empty
Between, closely arrangement is on the other hand formed between two flat tubes 2, be conducive to improving overall construction intensity.
In the diagram, two flat tubes 2 are arranged in a row, two streams arranged side by side are formed, with the single flat tube for waiting front face area
Heat exchanger is compared, and the length of single flat tube 2 about reduces half in the embodiment, so as to the single flow path length of heat exchanger refrigerant
Reduce half.
Embodiment three
Fig. 7 and Fig. 8 illustrate the structure of coil micro-channel heat exchanger 100 in embodiment three, the heat exchanger of embodiment three
Structure is substantially the same with the structure of heat exchanger in embodiment two, and same section is repeated no more.Except that, in embodiment three
In, the angle between the axis of two openings 13 projects on the cross section of header 1 on each header 1 is acute angle,
It may also be said that two openings 13 are handed in the cross section upslide shade of header 1 on each header 1.
The axis of each flat tube 2 forms an axial plane, and the angle between the axial plane of two flat tubes 2 is more than 0
Spend and less than or equal to 180 degree.The heat exchanger for so being formed is generally V-shaped, is suitable for the installing space of V-arrangement.
Certainly, in this utility model embodiment, can be different according to environmental conditions such as installing space sizes, heat exchanger it is flat
The angle of pipe 2 can be adjusted suitably.
In addition, in this utility model embodiment, shown concrete structure is not limited to three kinds of structures shown in figure, for example,
Opening 13 is divided into two groups on each header 1, with the axially spaced setting of multiple openings in group 13, difference group opening
13 are staggered in the circumferential setting, extend in the same direction with the corresponding flat tube 2 of group opening 13.
In this utility model embodiment, using many flat tubes 2 are arranged in a row, form multiple streams arranged side by side, with etc. meet
The single flat pipe heat exchanger of wind area is compared, and the length of single flat tube 2 is greatly decreased in the embodiment, so as to heat exchanger refrigerant
Single flow path length is also accordingly reduced.
In description of the present utility model, it is to be understood that term " " center ", " length ", " thickness ", " top ", " bottom ",
The orientation or position relationship of the instruction such as " interior ", " outward ", " axial direction ", " radial direction ", " circumference " is based on orientation shown in the drawings or position
Relation is put, description this utility model is for only for ease of and is simplified description, rather than indicate or imply the device or element of indication
Must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
In description of the present utility model, unless otherwise stated, " multiple " are meant that two or more.
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " company
Connect ", " fixation " should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can be concrete
Situation understands concrete meaning of the above-mentioned term in this utility model.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean to combine the embodiment or
Specific features, structure, material or the feature that example is described is contained at least one embodiment of the present utility model or example.
In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, description
Specific features, structure, material or feature can in an appropriate manner be tied in any one or more embodiments or example
Close.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
In the case of without departing from principle of the present utility model and objective various changes, modification, replacement can be carried out to these embodiments
And modification, scope of the present utility model limits by claim and its equivalent.
Claims (10)
1. a kind of coil micro-channel heat exchanger, it is characterised in that include：
Two headers, each described header includes body and is respectively provided at the end cap at the body two ends, the body
Multiple openings are provided with, the long side of each opening is directly vertical with the axial direction of the corresponding header；
Multiple flat tubes, the plurality of flat tube is connected in parallel between described two headers, and each described flat tube wriggles and extends, often
The two ends of the individual flat tube are connected correspondingly respectively with the opening on described two headers.
2. coil micro-channel heat exchanger according to claim 1, it is characterised in that described many on each described header
The axis of individual opening overlaps in the cross section upslide shade of the corresponding header.
3. coil micro-channel heat exchanger according to claim 2, it is characterised in that when the axis of the plurality of opening
Line is when the angle on the cross section of the corresponding header between projection is 0 degree, and the plurality of flat tube is extended in the same direction, and described
The axis of multiple flat tubes is in the same plane.
4. coil micro-channel heat exchanger according to claim 2, it is characterised in that when on each described header, extremely
When angle of the axis of rare two openings between projection on the accordingly cross section of the header is 180 degree,
Corresponding described two flat tubes are oppositely extending, and the axis of corresponding described two flat tubes is in the same plane.
5. coil micro-channel heat exchanger according to claim 1, it is characterised in that described many on each described header
Individual opening staggers in the circumferential setting.
6. coil micro-channel heat exchanger according to claim 5, it is characterised in that the axis of each flat tube is linear
Into an axial plane, the angle between the axial plane per the two neighboring flat tube is more than 0 degree and less than or equal to 180
Degree.
7. coil micro-channel heat exchanger according to claim 1, it is characterised in that be provided with fin between the flat tube.
8. coil micro-channel heat exchanger according to claim 7, it is characterised in that when the axis of the plurality of opening
When angle of the line between projection on the accordingly cross section of the header is 0 degree, the every two neighboring institute on the header
The axis distance between centers of tracks for stating opening is equal to, the height sum of the thickness of flat tube and the fin.
9. coil micro-channel heat exchanger according to claim 7, it is characterised in that when described on each described header
Multiple openings stagger in the circumferential setting when, the axis distance between centers of tracks of the every two neighboring opening on the header is big
In the thickness of a flat tube.
10. the coil micro-channel heat exchanger according to claim 4 or 6, it is characterised in that described two headers are same
Axle and setting spaced apart, limit hollow area, the part bending segment of described two flat tubes between described two headers on axial direction
In the hollow area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165841.9U CN206177081U (en) | 2016-10-25 | 2016-10-25 | Coiled pipe microchannel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621165841.9U CN206177081U (en) | 2016-10-25 | 2016-10-25 | Coiled pipe microchannel heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177081U true CN206177081U (en) | 2017-05-17 |
Family
ID=58680779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621165841.9U Active CN206177081U (en) | 2016-10-25 | 2016-10-25 | Coiled pipe microchannel heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917236A (en) * | 2018-07-30 | 2018-11-30 | 常州市常蒸热交换器科技有限公司 | Water dispenser condenser |
| CN109269341A (en) * | 2017-07-17 | 2019-01-25 | 浙江盾安热工科技有限公司 | Heat exchanger |
| WO2019184279A1 (en) * | 2018-03-30 | 2019-10-03 | 杭州三花微通道换热器有限公司 | Collecting pipe assembly for heat exchanger and heat exchanger |
-
2016
- 2016-10-25 CN CN201621165841.9U patent/CN206177081U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269341A (en) * | 2017-07-17 | 2019-01-25 | 浙江盾安热工科技有限公司 | Heat exchanger |
| CN109269341B (en) * | 2017-07-17 | 2021-09-28 | 浙江盾安热工科技有限公司 | Heat exchanger |
| WO2019184279A1 (en) * | 2018-03-30 | 2019-10-03 | 杭州三花微通道换热器有限公司 | Collecting pipe assembly for heat exchanger and heat exchanger |
| US11466939B2 (en) | 2018-03-30 | 2022-10-11 | Sanhua (Hangzhou) Micro Channel Heat Exchange Co., Ltd. | Header assembly for heat exchanger and heat exchanger |
| CN108917236A (en) * | 2018-07-30 | 2018-11-30 | 常州市常蒸热交换器科技有限公司 | Water dispenser condenser |
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Effective date of registration: 20191028 Address after: 310018, No. 289-1, No. 12, Poplar Street, Hangzhou economic and Technological Development Zone, Zhejiang Patentee after: Sanhua Micro Channel Heat Exchanger Inc. Address before: 310018 289-3, Hangzhou economic and Technological Development Zone, Zhejiang, No. 12, No. Patentee before: HANGZHOU SANHUAJIA ELECTROTHERMAL MANAGEMENT SYSTEM CO., LTD. |