CN104596153B - Micro-channel heat exchanger - Google Patents
Micro-channel heat exchanger Download PDFInfo
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- CN104596153B CN104596153B CN201310532316.0A CN201310532316A CN104596153B CN 104596153 B CN104596153 B CN 104596153B CN 201310532316 A CN201310532316 A CN 201310532316A CN 104596153 B CN104596153 B CN 104596153B
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- header
- heat exchanger
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- flat tube
- distribution cavity
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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
- F25B39/00—Evaporators; Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05308—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
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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
A kind of micro-channel heat exchanger, including header and heat transfer zone, the heat transfer zone includes flat tube, the inner space of the header includes the distribution cavity and collecting chamber of at least one set of pairing setting, the distribution cavity and the collecting chamber are located at described heat transfer zone the same side, are arranged before and after the distribution cavity and the collecting chamber direction that fluid flows along the header；The flat tube makes the both ends of the flat tube be connected to respectively with one group of distribution cavity of pairing setting and collecting chamber after bending；Flat tube both ends are made to be connect respectively with the distribution cavity of the header that is set to heat exchanger the same side and collecting chamber using the above structure, manufacturing cost can be reduced by omitting header, without considering that fluid is redistributed in the second header, keeps heat exchanger structure simple, material is saved, cost is reduced.
Description
Technical field
The present invention relates to a kind of heat exchanger more particularly to a kind of micro-channel heat exchangers.
Background technology
In recent years, air conditioner industry is grown rapidly, chief component one of of the heat exchanger as air-conditioning, it is also desirable to according to city
Aspect requirement be improved, optimization design；Micro-channel heat exchanger has high cooling efficiency, small, light-weight, resistance to pressure energy
The features such as power is strong has larger market in field of air conditioning.
In the prior art, micro-channel heat exchanger is mainly made of micro-channel flat, radiating fin and header；Header is logical
Often it is two, the both ends of micro-channel flat is set to, for distributing and collecting refrigerant；It is undulatory or with shutter shape
The radiating fin is set between adjacent micro-channel flat, to the heat exchange efficiency of enhanced heat exchange device and air side；In order to
Preferable heat exchange efficiency is obtained, partition board is internally provided in header, it can be by the flowing of micro-channel heat exchanger inner refrigerant point
At several flows, and according to the flat tube number of each flow of actual requirement reasonable distribution.
The header of micro-channel heat exchanger is typically to be made from multiple components, and needs multi-step process, such as punching and weldering
It connects, for micro-channel flat and radiating fin, in manufacturing process, the processing cost of header and is welded into
This can all be such that the processing cost of heat exchanger increases, while header is also easier to go wrong in use.
Therefore, it is necessary to be improved to existing technology, to solve the above technical problem.
Invention content
The purpose of the present invention is to provide it is a kind of it is simple in structure, heat exchange efficiency can be improved, and manufacturing cost can be reduced
Micro-channel heat exchanger.
To achieve the above object, the present invention adopts the following technical scheme that：A kind of micro-channel heat exchanger, including header and change
Hot-zone, the heat transfer zone include flat tube, and the header is provided with the flat pipe hole for installing flat tube both ends, the flat tube and collection
The inner space of flow tube is connected to, and the inner space of the header includes at least one set of distribution cavity and collecting chamber for matching setting,
The distribution cavity and the collecting chamber are located at the same side of the heat transfer zone, and the distribution cavity and the collecting chamber are along the afflux
The front and back arrangement in direction of tube fluid flowing；The distribution cavity is for the fluid in the header to be assigned to and the distribution
In the corresponding several flat tubes of chamber, the collecting chamber is used to enter the afflux collected from several flat tubes corresponding with the collecting chamber
The fluid of pipe；The flat tube makes the one group of distribution cavity and collecting chamber of the both ends of the flat tube respectively with pairing setting after bending
Connection.
As a further improvement on the present invention, the distribution cavity and the collecting chamber are in same header, the afflux
The inner space of pipe is provided with demarcation strip, and the inner space of the header is divided into the distribution cavity and described by the demarcation strip
Collecting chamber；Or the distribution cavity and the collecting chamber are set in two headers, which flows along header
The front and back arrangement in direction of body flowing.
As a further improvement on the present invention, the flat tube includes first connecting portion, second connecting portion and third interconnecting piece,
One end of the first connecting portion is connected to the distribution cavity, and one end of the second connecting portion is connected to the collecting chamber, institute
The other end of the other end and the second connecting portion of stating first connecting portion is connect with third interconnecting piece both ends；Same flat tube
The first connecting portion and the second connecting portion be connected in the distribution cavity and the collecting chamber, and be located at afflux
The upstream or downstream of tube fluid flow direction.
As a further improvement on the present invention, the flat tube includes first connecting portion, second connecting portion and third interconnecting piece,
One end of the first connecting portion is connected to the distribution cavity, and one end of the second connecting portion is connected to the collecting chamber, institute
The other end of the other end and the second connecting portion of stating first connecting portion is connect with third interconnecting piece both ends；Same flat tube
The first connecting portion and the second connecting portion be connected to the upstream and downstream of the distribution cavity and the collecting chamber,
The length for being connected to the flat tube of distribution pipe upstream is more than the length for the flat tube for being connected to distribution pipe downstream.
As a further improvement on the present invention, the adjacent first connecting portion and the second connecting portion are substantially parallel,
The heat transfer zone further includes the first fin for increasing heat exchange area, and first fin is set to adjacent the of adjacent flat tube
Between one interconnecting piece and/or the second connecting portion.
As a further improvement on the present invention, it is arranged in parallel between the third interconnecting piece of the flat tube, from the header
The length of third interconnecting piece farther out is more than the length of the third interconnecting piece closer from header, the third interconnecting piece of the flat tube
It is fitted.
As a further improvement on the present invention, it is arranged in parallel between the third interconnecting piece of the flat tube, from the header
The length of third interconnecting piece farther out is more than the length of the third interconnecting piece closer from header, in longest third interconnecting piece and
It is provided with the 4th fin between the third interconnecting piece of vice-minister.
As a further improvement on the present invention, the micro-channel heat exchanger is only equipped with the header in side.
As a further improvement on the present invention, the micro-channel heat exchanger is multithread pass heat exchanger, and the heat transfer zone is more than
Equal to two, the multipaths refers to that the fluid in micro-channel heat exchanger flows through the number of the heat transfer zone more than or equal to twice；
The heat transfer zone arranges before and after the direction that fluid flows along the header, wherein matching the distribution cavity of setting and described
Collecting chamber fluid flow direction along the header is arranged alternately and is located along the same line.
As a further improvement on the present invention, the micro-channel heat exchanger is multithread pass heat exchanger, and the heat transfer zone is more than
Equal to two, the multipaths refer to the fluid in micro-channel heat exchanger flow through the heat transfer zone number be more than or equal to twice,
The heat transfer zone is overlapped along the flow direction of external fluid.
Compared with prior art, the present invention makes distribution of the flat tube both ends respectively with the header for being set to heat exchanger the same side
Chamber is connected with collecting chamber, and manufacturing cost can be reduced by omitting a header, without the weight for considering fluid in the second header
New distribution, keeps heat exchanger structure simple, saves material, reduces cost；Heat exchanger can be made by flat tube of suitably arranging simultaneously
Heat exchange area increases, and improves the heat exchange efficiency of micro-channel heat exchanger.
Description of the drawings
Fig. 1 is the schematic diagram of micro-channel heat exchanger in first embodiment of the invention；
Fig. 2 is the median plane sectional view of Fig. 1；
Fig. 3 is the schematic diagram of micro-channel heat exchanger in second embodiment of the invention；
Fig. 4 is the median plane sectional view of Fig. 3；
Fig. 5 is the schematic diagram of micro-channel heat exchanger in third embodiment of the invention；
Fig. 6 is the schematic diagram of micro-channel heat exchanger in four embodiment of the invention；
Fig. 7 is the structural schematic diagram of the flat tube of micro-channel heat exchanger of the present invention；
Fig. 8 is the structural schematic diagram of the header of micro-channel heat exchanger of the present invention.
Specific implementation mode
The invention will be further described in the following with reference to the drawings and specific embodiments：
Present invention is disclosed a kind of micro-channel heat exchanger 100, it please join shown in Fig. 1 and Fig. 2, the first in the present invention is specific
In embodiment, the micro-channel heat exchanger 100 includes header 1, several flat tubes 2, the fin being set between adjacent flat tube 2
3, the partition board 5 that is set in header 1 and for fluid enter heat exchanger 100 into flow tube 6 and for fluid outflow heat exchanger
100 outflow tube 7；It certainly, can also be with 1 one of header into flow tube 6 and outflow tube 7 according to the installation needs of heat exchanger 100
Setting.
Header 1 includes header tube body；Header tube body is along 1 length direction of header（Right and left as shown in Figure 1
To）It is provided with several flat pipe holes 111（As shown in Figure 8）, header tube body is inserted into the end of flat tube 2 by the flat pipe hole 111
In 11, flat tube 2 and the inner space of header 1 is made to be connected to；Header tube body 11 is provided with partition board hole 112, is used for assemble in diaphragm 5
And partition board 5 is limited.
The inner space of header 1 is divided into the distribution cavity 151 and a collecting chamber 152 of pairing setting, distribution by partition board 5
Chamber 151 is for being assigned to the fluid in header 1 in several flat tubes corresponding with distribution cavity 151 2, and collecting chamber 152 is for receiving
Collection enters the fluid of header 1 from several flat tubes 2 corresponding with collecting chamber 152；Of course for making edge corresponding with distribution cavity 151
The fluid flowed into the flat tube 2 in header lengths direction is uniform, can also be arranged distribution member in distribution cavity 151, described point
Can be distribution plate, restricting element etc. with element；Certain distribution cavity 151 and collecting chamber 152 can also be two independent affluxs
Pipe, the front-rear direction that fluid flows along the header setting of two headers can also reach the technique effect of the present invention.
Flat tube 2 is generally U-shaped（As shown in Figure 7）, including vertical part and the horizontal part 23, vertical portion include the first vertical portion
21, the second vertical portion 22, wherein the first vertical portion 21 and the second vertical portion 22 are along heat exchanger longitudinal direction（Upper and lower as shown in Figure 1
To）Extend, horizontal part 23 extends along heat exchanger length direction；The first end 211 of first vertical portion 21 and the second vertical portion
22 the second end 221 is inserted into flat pipe hole 111, is connected to the inner space of flat tube 2 and header 1；First vertical portion 21 it is another
The other end of end and the second vertical portion 22 connect to form First Transition portion 24 and the second mistake with the both ends of horizontal part 23 respectively
Cross portion 25；First Transition portion 24 and the second transition part 25 are circular arc；Wherein the radian of circular arc and the heat dissipation area of heat exchanger and
The flowing of flat tube fluid is related, and general radian is bigger, and fluid flowing is more smooth, but can cause fin that cannot draw close interconnecting piece
Point, heat exchange area reduces, and the length of the smaller fin of radian is bigger, and heat exchange area is bigger, but fluid circulation can be caused to have some setbacks；Institute
To need actual conditions to be determined best radian.In the present embodiment, flat tube 2 forms the first vertical portion by bending technique
21, the second vertical portion 22, horizontal part 23 and First Transition portion 24 and the second transition part 25；211 He of first end of same flat tube 2
Flat pipe hole corresponding with distribution cavity 151 and collecting chamber 152 is inserted into second end section 221 respectively；Wherein the first vertical portion and second
Vertical portion is referred to as vertical portion；First vertical portion 21 is first connecting portion, and the second vertical portion 22 is second connecting portion, horizontal part 23
For third interconnecting piece, the first connecting portion and second connecting portion are not limited to vertical state, can also be in certain angle with header
Degree.
Using the above structure, make flat tube both ends respectively with the distribution cavity and receipts that are set in the header of heat exchanger the same side
Collect chamber connection, manufacturing cost can be reduced by omitting the header of a heat exchanger side, without fluid in the second header of consideration
Redistribute, keep heat exchanger structure simple, save material, reduce cost；Heat exchange can be made by flat tube of suitably arranging simultaneously
The heat exchange area of device increases, and improves the heat exchange efficiency of micro-channel heat exchanger.
In the present embodiment, as shown in figure 8, flow inlet 12 and outflow port are respectively arranged at the both ends of 1 length direction of header,
Specifically, the both ends of the surface in 1 direction of header lengths are respectively set in flow inlet 12 and outflow port, can make fluid stream in header 1
It is logical more smooth, keep the fluid being assigned in corresponding flat tube 2 relatively uniform, it more uniformly can be with of course for make that fluid distributes
Increase distribution member in distribution cavity；Certain flow inlet 12 and outflow port can be set to 1 circumferencial direction of header, according to heat exchange
The actual installation location determination of device；Flow inlet 12 is connected to distribution cavity 151, and outflow port is connected to collecting chamber 152.
The vertical portion of micro-channel heat exchanger 100 in the present embodiment, adjacent flat tube 2 is parallel in the length direction of header 1
Interval setting, is provided with the first fin 31, the horizontal part 23 of flat tube is in the parallel fitting of longitudinal direction between adjacent vertical portion
Setting.First fin 31 forms heat transfer zone with flat tube 2.The center of the horizontal part 23 from the heat transfer zone is gradual to edge length
Increase, the outermost in the first vertical portion 21 and the second vertical portion 22 is provided with the second fin 32, in the outside of the second fin 32
It is provided with side plate 4, side plate 4 prevents the second fin 32 to be bruised for protecting the second fin 32；Side plate 4 is integrated bending member, removes
The side of header setting is outer to enclose three bread of heat transfer zone, and such structure, which facilitates, welds while protecting entire heat transfer zone.
The course of work of micro-channel heat exchanger 100 in the present embodiment mode is：Fluid into flow tube 6 by passing through flow inlet
12 enter the distribution cavity 151 inside header 1, and the fluid in distribution cavity 151 is assigned to the flat tube 2 being connected to distribution cavity 151
The first vertical portion 21, subsequently into the horizontal component 23 of flat tube 2, by the second vertical portion 22 of flat tube 2, refrigerant enters collection
Collecting chamber 152 inside flow tube 1, the fluid in collecting chamber 152 enter outflow tube 7 by outflow port outflow header 1；Wherein flow
Body enters after flat tube 2 carries out heat exchange with external fluid, and the fin 3 by being connect with flat tube 2 increases heat exchange area, and raising is changed
The thermal efficiency.
Second embodiment of the invention, as Figure 3-Figure 4, the micro-channel heat exchanger 100 of present embodiment and first is in fact
The main distinction for applying mode is：
Between longest horizontal part 231 and vice-minister's horizontal part 232 along the length direction of header 1 it is spaced apart simultaneously
It is provided with the 4th fin 34 therebetween, the parallel fitting setting in remaining adjacent level portion；It is provided on the outside of longest horizontal part
The outside of third fin 33, third fin 33 is provided with side plate 4, and side plate 4, by being welded and fixed, is increased and changed with third fin 33
The area of hot device heat transfer zone, while the overall dimensions variation of heat exchanging device is smaller, can improve the heat exchange efficiency of heat exchanger；First
Fin 31, the second fin 32, third fin 33, the 4th fin 34 are referred to as fin 3.Other of second embodiment of the invention are special
Levy identical with first embodiment or close, details are not described herein.
In the first embodiment and second embodiment of the present invention, the micro-channel heat exchanger 100 only has one
A heat transfer zone.
Third embodiment of the invention, as shown in figure 5, micro-channel heat exchanger 100 is multithread pass heat exchanger, the heat transfer zone
More than or equal to two；The multithread pass heat exchanger refers to that fluid is more than in entire heat transfer process by the number of the heat transfer zone
Equal to twice.In present embodiment, micro-channel heat exchanger 100 is two flow heat exchangers, and the heat transfer zone is two and along described
The front and back arrangement in direction that fluid flows in header.
Micro-channel heat exchanger 100 includes header 1, and the both ends of flat tube 2, flat tube 2 are connected to header 1；First partition
51, second partition 52, first partition 51 and second partition 52 are arranged along header lengths direction, and header 1 is divided into three
Relatively independent space；2 both sides of flat tube are provided with fin 3, and the side plate 4 for protecting outside fin 3.
It is compared with second embodiment, header 1 includes two partition board holes;First partition 51 and second partition 52 pass through two
A partition board mounting hole is installed on header 1；The inner space of header 1 is divided by first partition 51 and second partition 52
First space 101, second space 102, third space 103；First space 101 is connected by first group of flat tube and second space 102
Logical, the first space 101 is not connected to third space 103；Second space 102 is connected to by second group of flat tube with third space 103.
The course of work of micro-channel heat exchanger is in present embodiment：First space 101 is connected to flow-in hole, the first space
The fluid that heat exchanger is entered by flow inlet is distributed to first group of flat tube 21 being connected to the first space 101 by 101；Second is empty
Between 102 collect fluid in first group of flat tube 21 being connected to the first space 101, and fluid is distributed to and second space 102
The fluid in second group of flat tube 22 is collected in second group of flat tube 22 of connection, third space 103, and the fluid in third space 103 is logical
It crosses outflow port and leaves heat exchanger；Fluid in heat exchanger carries out hot friendship by heat transfer zone including flat tube, fin and external fluid
It changes.
Micro-channel heat exchanger 100 in present embodiment, flat tube 2 include vertical part and the horizontal part by bending formation, are erected
The both sides in straight portion are both provided with fin, and side plate is provided on the outside of outermost fin, increases heat exchange area in this way, improves and changes
The thermal efficiency；Simultaneously according to the demand of heat exchange and the length of heat exchanger, it is also provided with fin between longer horizontal component, into one
Step improves heat exchange efficiency；It is identical to change simultaneously using the heat exchanger in present embodiment compared with the heat exchanger there are two header
The overall dimensions that heat exchanger can be reduced in the case of the thermal efficiency can reduce manufacturing cost, save manufacture material；This certain reality
It applies the micro-channel heat exchanger in mode and is not limited to two flows, the heat exchange of other multipaths can be set to according to actual needs
Device；The first space 101 in present embodiment is the first distribution cavity, and second space 102 includes the first collecting chamber and the second distribution
Chamber, third space 103 are the second collecting chamber.
The 4th embodiment of the present invention, as shown in fig. 6, micro-channel heat exchanger 100 includes two heat transfer zones, two heat exchange
Area is arranged in parallel along the direction that external fluid flows, and is double layer heat exchanger；It includes two on the flow direction of external fluid
The First Heat Exchanger of parallel arrangement and the second heat exchanger, the First Heat Exchanger and second heat exchanger and second embodiment
In micro-channel heat exchanger it is similar.The micro-channel heat exchanger 100 is also multithread pass heat exchanger, and the heat transfer zone is more than or equal to two
It is a.The multithread pass heat exchanger refers to that fluid is more than or equal to twice in entire heat transfer process by the number of the heat transfer zone.
In present embodiment, micro-channel heat exchanger 100 is four flow heat exchangers, and the heat transfer zone is two and along the flowing of external fluid
Direction overlaps.The First Heat Exchanger includes the first header 3, first partition 5, the first flat tube（It is to show in figure）, with
And first fin；Second heat exchanger includes the second header 4, second partition 6, the second flat tube 9 and the second fin；Described
One flat tube and the second flat tube are referred to as flat tube.
First header 3 and the second header 4 are arranged in parallel in the width direction, and the first header 3 is provided with flow inlet 61,
Second header 4 is provided with outflow port 71, and wherein flow inlet 61 and outflow port 71 are located at header lengths direction and longitudinal same
Side；Wherein outflow port 71 is set to the upstream of external fluid flow direction relative to flow inlet 61.
First partition 5 and second partition 6 are set in the middle part of the first header and the second header, respectively by the first header
3 inside and 4 inner space of the second header are divided into 41 He of the first distribution cavity 31 and the first collecting chamber 32 and the second distribution cavity
Second collecting chamber 42；Wherein the first distribution cavity 31 is connected to flow inlet 61, and the second collecting chamber 42 is connected to outflow port 71, and first receives
Recirculation hole between collection chamber 32 and the second distribution cavity 41 by being set between the first header 3 and the second header 4（In figure not
It shows）Connection.
First flat tube forms U-shaped by bending, and the U-shaped both ends of the first flat tube pass through the flat tube that is arranged on the first header 3
Hole respectively with inside the first header 3 the first distribution cavity 31 and the first collecting chamber 32 be connected to；Second flat tube 9 is formed by bending
It is U-shaped, the U-shaped both ends of the second flat tube 9 by the flat pipe hole that is arranged on the second header 4 respectively with inside the second header 4
Two distribution cavities 41 are connected to the second distribution cavity 42.
In present embodiment, the first header 3 and the second header 4 also respectively including two partition boards for being sealed
Head piece and flow inlet are disposed therein on two partition boards；It can certainly be set to by end cap seal, outflow port and flow-in hole
On end cap.
In present embodiment, the course of work of micro-channel heat exchanger 100 is：Fluid enters the first afflux by flow inlet 61
The first distribution cavity 31 inside pipe 3, the first distribution cavity 31 distribute a fluid in the first flat tube being connected to the first distribution cavity 31,
First flat tube of the fluid by bending enters the first collecting chamber 32, and the first collecting chamber 32 and the second distribution cavity 41 pass through intercommunicating pore
Connection, fluid enter the second distribution cavity 41 by the first collecting chamber 32 and intercommunicating pore, and the first distribution cavity 41 distributes a fluid to
In the second flat tube 9 being connected to the second distribution cavity, second flat tube 9 of the fluid by bending enters the second collecting chamber 42, and second
Collecting chamber 42 is connected to outflow port 71, and fluid leaves heat exchanger by outflow port；Fluid wherein inside heat exchanger is flowed with extraneous
Body completes heat exchange in flat tube region.
It is provided with side plate 10 on the outside of two heat transfer zones of heat exchanger, fin is provided between side plate 10 and outside flat tube,
Increase heat exchange area, improves heat exchange efficiency, the side plate 10 being wholely set is convenient for welding.
Length direction described in present embodiment is left and right directions shown in fig. 6, and the longitudinal direction is upper and lower directions, institute
It is front-rear direction to state width direction.
It should be noted that：Above example is merely to illustrate the present invention and not limits technical side described in the invention
Case, although this specification with reference to the above embodiments to present invention has been detailed description, the common skill of this field
Art personnel should be appreciated that person of ordinary skill in the field still can modify or equivalently replace the present invention, and
All do not depart from the technical solution of the spirit and scope of the present invention and its improvement, should all cover in scope of the presently claimed invention
It is interior.
Claims (10)
1. a kind of micro-channel heat exchanger, including header and heat transfer zone, the heat transfer zone include flat tube, the header is provided with
Flat pipe hole for installing flat tube both ends, the flat tube are connected to the inner space of header, it is characterised in that：The header
Inner space include at least one set of pairing setting distribution cavity and collecting chamber, the distribution cavity and the collecting chamber are located at described
The same side of heat transfer zone, the distribution cavity and the collecting chamber are arranged before and after the direction that fluid flows along the header；Institute
It states distribution cavity to be used to the fluid in the header being assigned in several flat tubes corresponding with the distribution cavity, the collecting chamber
Fluid for entering the header collected from several flat tubes corresponding with the collecting chamber；The flat tube makes after bending
The both ends of the flat tube are connected to one group of distribution cavity of pairing setting and collecting chamber respectively,
The flat tube includes first connecting portion, second connecting portion and third interconnecting piece, one end of the first connecting portion with it is described
Distribution cavity is connected to, and one end of the second connecting portion is connected to the collecting chamber, the other end of the first connecting portion and described
The other end of second connecting portion is connect with third interconnecting piece both ends,
Be arranged in parallel between the third interconnecting piece of the flat tube, the length from the third interconnecting piece of the header farther out be more than from
The length of the closer third interconnecting piece of header.
2. micro-channel heat exchanger according to claim 1, it is characterised in that：The distribution cavity and the collecting chamber are same
In header, the inner space of the header is provided with demarcation strip, and the demarcation strip divides the inner space of the header
For the distribution cavity and the collecting chamber；Or the distribution cavity and the collecting chamber are set in two headers, this two
Header is arranged before and after the direction that fluid flows along header.
3. micro-channel heat exchanger according to claim 1 or 2, it is characterised in that：The first connecting portion of same flat tube
It is connected in the distribution cavity and the collecting chamber with the second connecting portion, and positioned at fluid flow direction in header
Upstream or downstream.
4. micro-channel heat exchanger according to claim 1 or 2, it is characterised in that：The first connecting portion of same flat tube
It is connected to the upstream and downstream of the distribution cavity and the collecting chamber with the second connecting portion, is connected to distribution cavity upstream
Flat tube length be more than be connected to distribution cavity downstream flat tube length.
5. micro-channel heat exchanger according to claim 4, it is characterised in that：The adjacent first connecting portion and described
Two interconnecting pieces are substantially parallel, and the heat transfer zone further includes the first fin for increasing heat exchange area, the first fin setting
Between the adjacent first connecting portion and/or the second connecting portion of adjacent flat tube.
6. micro-channel heat exchanger according to claim 5, it is characterised in that：The third interconnecting piece of the flat tube, which fits, to be set
It sets.
7. micro-channel heat exchanger according to claim 5, it is characterised in that：The of longest third interconnecting piece and vice-minister
The 4th fin is provided between three interconnecting pieces.
8. micro-channel heat exchanger according to claim 1, it is characterised in that：The micro-channel heat exchanger is only equipped in side
The header.
9. micro-channel heat exchanger according to claim 1 or 2, it is characterised in that：The micro-channel heat exchanger is multipaths
Heat exchanger, the heat transfer zone are more than or equal to two, and the multipaths refers to that the fluid in micro-channel heat exchanger flows through the heat exchange
The number in area is more than or equal to twice；The heat transfer zone is arranged before and after the direction that fluid flows along the header, wherein matching
The distribution cavity being arranged and the collecting chamber fluid flow direction along the header are arranged alternately and are located at same straight line
On.
10. micro-channel heat exchanger according to claim 1 or 2, it is characterised in that：The micro-channel heat exchanger is multipaths
Heat exchanger, the heat transfer zone are more than or equal to two, and the multipaths refers to that the fluid in micro-channel heat exchanger flows through the heat exchange
The number in area is more than or equal to twice, and the heat transfer zone is overlapped along the flow direction of external fluid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310532316.0A CN104596153B (en) | 2013-10-31 | 2013-10-31 | Micro-channel heat exchanger |
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|---|---|---|---|
| CN201310532316.0A CN104596153B (en) | 2013-10-31 | 2013-10-31 | Micro-channel heat exchanger |
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| CN104596153B true CN104596153B (en) | 2018-09-28 |
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104913548B (en) * | 2015-06-26 | 2017-05-24 | 上海交通大学 | Parallel flow heat exchanger of single header pipe |
| CN106352605A (en) * | 2015-06-30 | 2017-01-25 | 杭州三花家电热管理系统有限公司 | Micro-channel heat exchanger and application thereof in system |
| CN106322842A (en) * | 2015-06-30 | 2017-01-11 | 杭州三花家电热管理系统有限公司 | Micro-channel heat exchanger and application thereof to system |
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