CN104596153A - Micro-channel heat exchanger - Google Patents
Micro-channel heat exchanger Download PDFInfo
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- CN104596153A CN104596153A CN201310532316.0A CN201310532316A CN104596153A CN 104596153 A CN104596153 A CN 104596153A CN 201310532316 A CN201310532316 A CN 201310532316A CN 104596153 A CN104596153 A CN 104596153A
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- connecting portion
- heat exchanger
- header
- micro
- flat tube
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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 micro-channel heat exchanger comprises collection pipes and a heat exchange area. The heat exchange area comprises flat pipes, and internal space of each collection pipe comprises at least one set of distribution cavities and collection cavities which are arranged in a paired manner. The distribution cavities and the collection cavities are formed in the same side of the heat exchange area and are arranged in a front and back manner in the flowing direction of fluid in the collection pipes; after each flat pipe is bent, the two ends of each flat pipe are communicated with the corresponding distribution cavity and the corresponding collection cavity respectively, wherein the distribution cavity and the collection cavity are arranged in one set in the paired manner; and by the adoption of the structure, the two ends of each flat pipe are connected with the corresponding distribution cavity and the corresponding collection cavity respectively, and the distribution cavity and the collection cavity are formed in the same side of the heat exchanger. One collecting pipe can be removed, and manufacturing cost can be reduced. Redistribution of fluid in a second collection pipe does not need to be considered, and the heat exchanger is simple in structure; and the materials are saved, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of heat exchanger, particularly relate to a kind of micro-channel heat exchanger.
Background technology
In recent years, air conditioner industry fast development, heat exchanger, as one of the chief component of air-conditioning, also needs to carry out improving according to the requirement of aspect, market, optimal design; Micro-channel heat exchanger has the features such as refrigerating efficiency is high, volume is little, lightweight, voltage endurance capability is strong, has larger market in field of air conditioning.
In prior art, micro-channel heat exchanger forms primarily of micro-channel flat, radiating fin and header; Header is generally two, is arranged at the two ends of micro-channel flat, for distributing and collecting cold-producing medium; Undulatory or with shutter shape described radiating fin is arranged between adjacent micro-channel flat, in order to the heat exchange efficiency of enhanced heat exchange device and air side; In order to obtain preferably heat exchange efficiency, being provided with dividing plate in the inside of header, the flowing of micro-channel heat exchanger inner refrigerant can being divided into several flow processs, and according to the flat tube number of each flow process of actual requirement reasonable distribution.
The header of micro-channel heat exchanger is normally made from multiple components, need multi-step process, as punching and welding etc., for micro-channel flat and radiating fin, in manufacture process, the processing cost of header and welding cost all can make the processing cost of heat exchanger increase, and in use header also goes wrong than being easier to simultaneously.
Therefore, be necessary to improve existing technology, to solve above technical problem.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, can heat exchange efficiency be improved, and the micro-channel heat exchanger of manufacturing cost can be reduced.
For achieving the above object, the present invention adopts following technical scheme: a kind of micro-channel heat exchanger, comprise header and heat transfer zone, described heat transfer zone comprises flat tube, described header is provided with the flat pipe hole for installing flat tube two ends, described flat tube is communicated with the inner space of header, the inner space of described header comprises at least one assembly to the distribution cavity arranged and collecting chamber, described distribution cavity and described collecting chamber are positioned at the same side of described heat transfer zone, and described distribution cavity and described collecting chamber are arranged before and after the direction that described header inner fluid flows; Described distribution cavity is used for the fluid in described header to be assigned in some flat tubes corresponding with described distribution cavity, and described collecting chamber enters the fluid of described header from some flat tubes corresponding with described collecting chamber for collecting; One group of distribution cavity that described flat tube makes the two ends of described flat tube arrange with pairing respectively after bending is communicated with collecting chamber.
As a further improvement on the present invention, described distribution cavity and described collecting chamber are in same header, and the inner space of described header is provided with demarcation strip, and the inner space of described header is divided into described distribution cavity and described collecting chamber by described demarcation strip; Or described distribution cavity and described collecting chamber are arranged in two headers, these two headers are arranged before and after the direction that header inner fluid flows.
As a further improvement on the present invention, described flat tube comprises the first connecting portion, the second connecting portion and the 3rd connecting portion, one end of described first connecting portion is communicated with described distribution cavity, one end of described second connecting portion is communicated with described collecting chamber, and the other end of described first connecting portion is connected with described 3rd connecting portion two ends with the other end of described second connecting portion; Described first connecting portion and described second connecting portion of same flat tube are connected in described distribution cavity and described collecting chamber, and are positioned at upstream or the downstream of header inner fluid flow direction.
As a further improvement on the present invention, described flat tube comprises the first connecting portion, the second connecting portion and the 3rd connecting portion, one end of described first connecting portion is communicated with described distribution cavity, one end of described second connecting portion is communicated with described collecting chamber, and the other end of described first connecting portion is connected with described 3rd connecting portion two ends with the other end of described second connecting portion; Described first connecting portion of same flat tube and described second connecting portion are connected to the upstream and downstream of described distribution cavity and described collecting chamber, and the length being connected to the flat tube of distributing pipe upstream is greater than the length of the flat tube being connected to distributing pipe downstream.
As a further improvement on the present invention, adjacent described first connecting portion and described second connecting portion almost parallel, described heat transfer zone also comprises the first fin increasing heat exchange area, between adjacent first connecting portion that described first fin is arranged at adjacent flat tube and/or described second connecting portion.
As a further improvement on the present invention, be arranged in parallel between the 3rd connecting portion of described flat tube, the length from described header the 3rd connecting portion far away is greater than the length from the 3rd connecting portion close to header, and the 3rd connecting portion of described flat tube is fitted.
As a further improvement on the present invention, be arranged in parallel between 3rd connecting portion of described flat tube, length from described header the 3rd connecting portion far away is greater than the length from the 3rd connecting portion close to header, between the 3rd the longest connecting portion and the 3rd connecting portion of vice-minister, be provided with the 4th fin.
As a further improvement on the present invention, described micro-channel heat exchanger is only provided with described header in side.
As a further improvement on the present invention, described micro-channel heat exchanger is multipaths heat exchanger, and described heat transfer zone is more than or equal to two, and described multipaths refers to that the number of times that the fluid in micro-channel heat exchanger flows through described heat transfer zone is more than or equal to twice; Described heat transfer zone is arranged before and after the direction that described header inner fluid flows, wherein match arrange described distribution cavity and described collecting chamber alternately arrange along described header inner fluid flow direction and be located along the same line.
As a further improvement on the present invention, described micro-channel heat exchanger is multipaths heat exchanger, described heat transfer zone is more than or equal to two, described multipaths refers to that the number of times that the fluid in micro-channel heat exchanger flows through described heat transfer zone is more than or equal to twice, and described heat transfer zone overlaps along the flow direction of external fluid.
Compared with prior art, the present invention makes flat tube two ends be connected with the distribution cavity of header and collecting chamber that are arranged at heat exchanger the same side respectively, omit a header and can reduce manufacturing cost, also redistributing of fluid in the second header need not be considered, make heat exchanger structure simple, save material, reduce costs; The heat exchange area of heat exchanger can be made to increase by flat tube of suitably arranging simultaneously, improve the heat exchange efficiency of micro-channel heat exchanger.
Accompanying drawing explanation
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 representation of the flat tube of micro-channel heat exchanger of the present invention;
Fig. 8 is the structural representation of the header of micro-channel heat exchanger of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Present invention is disclosed a kind of micro-channel heat exchanger 100, shown in please refer to the drawing 1 and Fig. 2, in the first detailed description of the invention of the present invention, described micro-channel heat exchanger 100 comprises header 1, some flat tubes 2, is arranged at fin 3 between adjacent flat tube 2, is arranged at the dividing plate 5 in header 1 and enters the influent stream pipe 6 of heat exchanger 100 and the outflow tube 7 for fluid outflow heat exchanger 100 for fluid; Certainly according to the installation needs of heat exchanger 100, influent stream pipe 6 and outflow tube 7 also can be wholely set with header 1.
Header 1 comprises header body; Header body is provided with some flat pipe hole 111(as shown in Figure 8 along header 1 length direction (left and right directions as shown in Figure 1)), the end of flat tube 2 is inserted in header body 11 by described flat pipe hole 111, and flat tube 2 is communicated with the inner space of header 1; Header body 11 is provided with partition board hole 112, to dividing plate 5 spacing for assemble in diaphragm 5.
The inner space of header 1 is divided into distribution cavity 151 and the collecting chamber 152 that pairing is arranged by dividing plate 5, distribution cavity 151 is for being assigned in some flat tubes 2 corresponding with distribution cavity 151 by the fluid in header 1, collecting chamber 152 enters the fluid of header 1 from some flat tubes 2 corresponding with collecting chamber 152 for collecting; Certainly in order to make the flat tube 2 interior fluid well-distributing that flow into along header lengths direction corresponding with distribution cavity 151, can also arrange distribution member in distribution cavity 151, described distribution member can be distribution plate, restricting element etc.; Certain distribution cavity 151 and collecting chamber 152 also can be two independently headers, and two headers arrange along the fore-and-aft direction that header inner fluid flows and also can reach technique effect of the present invention.
Flat tube 2 generally u-shaped (as shown in Figure 7), comprise vertical portion and horizontal part 23, vertical portion comprises the first vertical portion 22, vertical portion 21, second, wherein the first vertical portion 21 and the second vertical portion 22 are along heat exchanger longitudinally (above-below direction as shown in Figure 1) extension, and horizontal part 23 extends along heat exchanger length direction; The first end 211 of the first vertical portion 21 and the second end 221 of the second vertical portion 22 insert flat pipe hole 111, are communicated with the inner space of flat tube 2 and header 1; The other end of the first vertical portion 21 and the other end of the second vertical portion 22 are connected to form First Transition portion 24 and the second transition part 25 respectively with the both ends of horizontal part 23; First Transition portion 24 and the second transition part 25 are circular arc; Wherein the radian of circular arc is relevant with the flowing of the area of dissipation of heat exchanger and flat tube inner fluid, general radian is larger, fluid flowing is more smooth and easy, but fin can be caused not draw close coupling part, heat exchange area reduces, the length of the less fin of radian is larger, and heat exchange area is larger, but fluid can be caused to circulate to have some setbacks; So need actual conditions to carry out determining best radian.In the present embodiment, flat tube 2 forms the first vertical portion 22, vertical portion 21, second, horizontal part 23 and First Transition portion 24 and the second transition part 25 by bending technique; The flat pipe hole corresponding with distribution cavity 151 and collecting chamber 152 is inserted respectively in the first end 211 of same flat tube 2 and second end section 221; Wherein the first vertical portion and the second vertical portion are referred to as vertical portion; First vertical portion 21 is the first connecting portion, and the second vertical portion 22 is the second connecting portion, and horizontal part 23 is the 3rd connecting portion, and described first connecting portion and the second connecting portion are not limited to vertical state, also can with header at an angle.
Adopt said structure, flat tube two ends are connected with the distribution cavity in the header being arranged at heat exchanger the same side and collecting chamber respectively, the header omitting a heat exchanger side can reduce manufacturing cost, also redistributing of fluid in the second header need not be considered, make heat exchanger structure simple, save material, reduce costs; The heat exchange area of heat exchanger can be made to increase by flat tube of suitably arranging simultaneously, improve the heat exchange efficiency of micro-channel heat exchanger.
In the present embodiment, as shown in Figure 8, influent stream mouth 12 and go out the two ends that head piece is arranged at header 1 length direction respectively, particularly, influent stream mouth 12 and go out the both ends of the surface that head piece arranges header lengths 1 direction respectively, header 1 inner fluid can be made to circulate more smooth and easy, the fluid ratio making to be assigned in corresponding flat tube 2 is comparatively even, certainly more evenly can increase distribution member in distribution cavity in order to what make fluid distribute; Certain influent stream mouth 12 and go out head piece and can be arranged at header 1 circumferencial direction, the actual installation position according to heat exchanger is determined; Influent stream mouth 12 is communicated with distribution cavity 151, goes out head piece and is communicated with collecting chamber 152.
Micro-channel heat exchanger 100 in the present embodiment, the vertical portion of adjacent flat tube 2 is arranged in the length direction parallel interval of header 1, is provided with the first fin 31 between adjacent vertical portion, and the horizontal part 23 of flat tube is arranged in the parallel laminating of longitudinal direction.First fin 31 forms heat transfer zone with flat tube 2.Described horizontal part 23 increases to edge length gradually from the center of described heat transfer zone, the outermost of the first vertical portion 21 and the second vertical portion 22 is provided with the second fin 32, have side plate 4 in the arranged outside of the second fin 32, side plate 4, for the protection of the second fin 32, prevents the second fin 32 to be bruised; Side plate 4 is integrated bending member, is enclosed by three bread of heat transfer zone except the side that header is arranged, and whole heat transfer zone is protected in the convenient welding of such structure simultaneously.
The course of work of the micro-channel heat exchanger 100 in the present embodiment mode is: fluid enters into the distribution cavity 151 of header 1 inside through influent stream mouth 12 by influent stream pipe 6, fluid in distribution cavity 151 is assigned to the first vertical portion 21 of the flat tube 2 be communicated with distribution cavity 151, then the horizontal component 23 of flat tube 2 is entered, through the second vertical portion 22 of flat tube 2, cold-producing medium enters the collecting chamber 152 of header 1 inside, and the fluid in collecting chamber 152 enters outflow tube 7 through going out head piece outflow header 1; Wherein fluid enters after flat tube 2 and carries out heat exchange with external fluid, and increases heat exchange area by the fin 3 be connected with flat tube 2, raising heat exchange efficiency.
Second embodiment of the invention, as Figure 3-Figure 4, the micro-channel heat exchanger 100 of present embodiment and the main distinction of the first embodiment are:
Along the length direction of header 1 keeping at a certain distance away and being provided with the 4th fin 34 between the longest horizontal part 231 and vice-minister's horizontal part 232, the parallel laminating in all the other adjacent level portions is arranged; The arranged outside of the longest horizontal part has the 3rd fin 33, the arranged outside of the 3rd fin 33 has side plate 4, and side plate 4 and the 3rd fin 33, by being welded and fixed, add the area of heat exchanger heat transfer zone, the overall dimensions change of heat exchanger is less simultaneously, can improve the heat exchange efficiency of heat exchanger; First fin 31, second fin 32, the 3rd fin 33, the 4th fin 34 are referred to as fin 3.Other features of second embodiment of the invention are identical with the first embodiment or close, do not repeat them here.
In the first embodiment of the present invention and the second embodiment, described micro-channel heat exchanger 100 only has a heat transfer zone.
Third embodiment of the invention, as shown in Figure 5, micro-channel heat exchanger 100 is multipaths heat exchanger, and described heat transfer zone is more than or equal to two; Described multipaths heat exchanger refers to that fluid is more than or equal to twice by the number of times of described heat transfer zone in whole heat transfer process.In present embodiment, micro-channel heat exchanger 100 is two flow heat exchangers, and described heat transfer zone is two and arranges before and after the direction of described header inner fluid flowing.
Micro-channel heat exchanger 100 comprises header 1, flat tube 2, and the two ends of flat tube 2 are all communicated with header 1; First dividing plate 51, second partition 52, the first dividing plate 51 and second partition 52 are arranged along header lengths direction, header 1 are divided into three relatively independent spaces; Flat tube 2 both sides are provided with fin 3, and for the protection of the side plate 4 of outside fin 3.
Compare with the second embodiment, header 1 comprises two partition board holes; First dividing plate 51 and second partition 52 are installed on header 1 by two dividing plate installing holes; The inner space of header 1 is divided into the first space 101, second space 102, the 3rd space 103 by the first dividing plate 51 and second partition 52; First space 101 is communicated with second space 102 by first group of flat tube, and the first space 101 is not communicated with the 3rd space 103; Second space 102 is communicated with the 3rd space 103 by second group of flat tube.
In present embodiment, the course of work of micro-channel heat exchanger is: the first space 101 is communicated with flow-in hole, and the fluid entering into heat exchanger through influent stream mouth is distributed to the first group of flat tube 21 be communicated with the first space 101 by the first space 101; Second space 102 collects the fluid in first group of flat tube 21 being communicated with the first space 101, and fluid is distributed to the second group of flat tube 22 be communicated with second space 102, the fluid in second group of flat tube 22 is collected in 3rd space 103, and the fluid in the 3rd space 103 passes through head piece and leaves heat exchanger; Fluid in heat exchanger carries out heat exchange by comprising flat tube, the heat transfer zone of fin and external fluid.
Micro-channel heat exchanger 100 in present embodiment, flat tube 2 is formed by bending and comprises vertical portion and horizontal part, and the both sides of vertical portion are all provided with fin, and the arranged outside of outermost fin has side plate, which increases heat exchange area, improves heat exchange efficiency; Simultaneously according to the demand of heat exchange and the length of heat exchanger, be also provided with fin between longer horizontal component, improve heat exchange efficiency further; Heat exchanger simultaneously in employing present embodiment, compared with having the heat exchanger of two headers, can reduce the overall dimensions of heat exchanger, can reduce manufacturing cost, save manufactured materials when identical heat exchange efficiency; Micro-channel heat exchanger in certain present embodiment is not limited to two flow processs, can be set to the heat exchanger of other multipaths according to actual needs; The first space 101 in present embodiment is the first distribution cavity, and second space 102 comprises the first collecting chamber and the second distribution cavity, and the 3rd space 103 is the second collecting chamber.
4th embodiment of the present invention, as shown in Figure 6, micro-channel heat exchanger 100 comprises two heat transfer zone, and the direction flowed along external fluid in two heat transfer zone is arranged in parallel, and is double layer heat exchanger; It comprises two First Heat Exchangers be arranged in parallel on the flow direction of external fluid and the second heat exchanger, and the micro-channel heat exchanger in described First Heat Exchanger and described second heat exchanger and the second embodiment is similar.Described micro-channel heat exchanger 100 is also multipaths heat exchanger, and described heat transfer zone is more than or equal to two.Described multipaths heat exchanger refers to that fluid is more than or equal to twice by the number of times of described heat transfer zone in whole heat transfer process.In present embodiment, micro-channel heat exchanger 100 is four flow heat exchangers, and described heat transfer zone is two and flow direction along external fluid overlaps.Described First Heat Exchanger comprises the first header 3, first dividing plate 5, first flat tube (for illustrating in figure), and the first fin; Second heat exchanger comprises the second header 4, second partition 6, the second flat tube 9, and the second fin; Described first flat tube and the second flat tube are referred to as flat tube.
First header 3 and the second header 4 be arranged in parallel in the width direction, and the first header 3 is provided with influent stream mouth 61, second header 4 and is provided with out head piece 71, wherein influent stream mouth 61 and go out head piece 71 and be positioned at header lengths direction and longitudinal homonymy; Wherein go out head piece 71 is arranged at external fluid flow direction upstream relative to influent stream mouth 61.
First dividing plate 5 and second partition 6 are arranged in the middle part of the first header and the second header, first header 3 is inner and the second header 4 inner space is divided into the first distribution cavity 31 and the first collecting chamber 32 respectively, and the second distribution cavity 41 and the second collecting chamber 42; Wherein the first distribution cavity 31 is communicated with influent stream mouth 61, the second collecting chamber 42 with go out head piece 71 and be communicated with, be communicated with by the opening (not shown) be arranged between the first header 3 and the second header 4 between the first collecting chamber 32 and the second distribution cavity 41.
First flat tube is formed U-shaped through bending, the U-shaped two ends of the first flat tube are communicated with the first collecting chamber 32 with the first distribution cavity 31 of the first header 3 inside respectively by the flat pipe hole that the first header 3 is arranged; Second flat tube 9 is formed U-shaped through bending, the U-shaped two ends of the second flat tube 9 are communicated with the second distribution cavity 42 with the second distribution cavity 41 of the second header 4 inside respectively by the flat pipe hole that the second header 4 is arranged.
In present embodiment, the first header 3 and the second header 4 also respectively comprise two dividing plates, for sealing, go out on head piece and influent stream mouth two dividing plates disposed therein; Can certainly end cap seal be passed through, go out head piece and flow-in hole is arranged on end cap.
In present embodiment, the course of work of micro-channel heat exchanger 100 is: fluid enters the first distribution cavity 31 of the first header 3 inside by influent stream mouth 61, first distribution cavity 31 distributes a fluid in the first flat tube be communicated with the first distribution cavity 31, fluid enters into the first collecting chamber 32 through the first flat tube of bending, first collecting chamber 32 is communicated with by intercommunicating pore with the second distribution cavity 41, fluid enters the second distribution cavity 41 through the first collecting chamber 32 and intercommunicating pore, first distribution cavity 41 distributes a fluid in the second flat tube 9 be communicated with the second distribution cavity, fluid enters into the second collecting chamber 42 through the second flat tube 9 of bending, second collecting chamber 42 with go out head piece 71 and be communicated with, fluid leaves heat exchanger through going out head piece, wherein the fluid of heat exchanger inside and external fluid complete heat exchange in flat tube region.
The arranged outside of two heat transfer zone of heat exchanger has side plate 10, is provided with fin between side plate 10 and outside flat tube, increases heat exchange area, improves heat exchange efficiency, and the side plate 10 be wholely set is convenient to welding.
Length direction described in present embodiment is the left and right directions shown in Fig. 6, and described longitudinal direction is above-below direction, and described width is fore-and-aft direction.
It should be noted that: above embodiment is only for illustration of the present invention and unrestricted technical scheme described in the invention, although this description reference the above embodiments are to present invention has been detailed description, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify to the present invention or equivalent replacement, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, all should be encompassed in right of the present invention.
Claims (10)
1. a micro-channel heat exchanger, comprise header and heat transfer zone, described heat transfer zone comprises flat tube, described header is provided with the flat pipe hole for installing flat tube two ends, described flat tube is communicated with the inner space of header, it is characterized in that: the inner space of described header comprises at least one assembly to the distribution cavity arranged and collecting chamber, described distribution cavity and described collecting chamber are positioned at the same side of described heat transfer zone, and described distribution cavity and described collecting chamber are arranged before and after the direction that described header inner fluid flows; Described distribution cavity is used for the fluid in described header to be assigned in some flat tubes corresponding with described distribution cavity, and described collecting chamber enters the fluid of described header from some flat tubes corresponding with described collecting chamber for collecting; One group of distribution cavity that described flat tube makes the two ends of described flat tube arrange with pairing respectively after bending is communicated with collecting chamber.
2. micro-channel heat exchanger according to claim 1, it is characterized in that: described distribution cavity and described collecting chamber are in same header, the inner space of described header is provided with demarcation strip, and the inner space of described header is divided into described distribution cavity and described collecting chamber by described demarcation strip; Or described distribution cavity and described collecting chamber are arranged in two headers, these two headers are arranged before and after the direction that header inner fluid flows.
3. require the micro-channel heat exchanger described in 1 or 2 according to power, it is characterized in that: described flat tube comprises the first connecting portion, the second connecting portion and the 3rd connecting portion, one end of described first connecting portion is communicated with described distribution cavity, one end of described second connecting portion is communicated with described collecting chamber, and the other end of described first connecting portion is connected with described 3rd connecting portion two ends with the other end of described second connecting portion; Described first connecting portion and described second connecting portion of same flat tube are connected in described distribution cavity and described collecting chamber, and are positioned at upstream or the downstream of header inner fluid flow direction.
4. micro-channel heat exchanger according to claim 1 and 2, it is characterized in that: described flat tube comprises the first connecting portion, the second connecting portion and the 3rd connecting portion, one end of described first connecting portion is communicated with described distribution cavity, one end of described second connecting portion is communicated with described collecting chamber, and the other end of described first connecting portion is connected with described 3rd connecting portion two ends with the other end of described second connecting portion; Described first connecting portion of same flat tube and described second connecting portion are connected to the upstream and downstream of described distribution cavity and described collecting chamber, and the length being connected to the flat tube of distributing pipe upstream is greater than the length of the flat tube being connected to distributing pipe downstream.
5. micro-channel heat exchanger according to claim 4, it is characterized in that: adjacent described first connecting portion and described second connecting portion almost parallel, described heat transfer zone also comprises the first fin increasing heat exchange area, between adjacent first connecting portion that described first fin is arranged at adjacent flat tube and/or described second connecting portion.
6. micro-channel heat exchanger according to claim 5, it is characterized in that: be arranged in parallel between the 3rd connecting portion of described flat tube, length from described header the 3rd connecting portion far away is greater than the length from the 3rd connecting portion close to header, and the 3rd connecting portion of described flat tube is fitted.
7. micro-channel heat exchanger according to claim 5, it is characterized in that: be arranged in parallel between the 3rd connecting portion of described flat tube, length from described header the 3rd connecting portion far away is greater than the length from the 3rd connecting portion close to header, between the 3rd the longest connecting portion and the 3rd connecting portion of vice-minister, be provided with the 4th fin.
8. micro-channel heat exchanger according to claim 1, is characterized in that: described micro-channel heat exchanger is only provided with described header in side.
9. require the micro-channel heat exchanger described in 1 or 2 according to power, it is characterized in that: described micro-channel heat exchanger is multipaths heat exchanger, described heat transfer zone is more than or equal to two, and described multipaths refers to that the number of times that the fluid in micro-channel heat exchanger flows through described heat transfer zone is more than or equal to twice; Described heat transfer zone is arranged before and after the direction that described header inner fluid flows, wherein match arrange described distribution cavity and described collecting chamber alternately arrange along described header inner fluid flow direction and be located along the same line.
10. micro-channel heat exchanger according to claim 1 and 2, it is characterized in that: described micro-channel heat exchanger is multipaths heat exchanger, described heat transfer zone is more than or equal to two, described multipaths refers to that the number of times that the fluid in micro-channel heat exchanger flows through described heat transfer zone is more than or equal to twice, and described heat transfer zone overlaps along the flow direction of external fluid.
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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 CN104596153B (en) | 2018-09-28 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104913548A (en) * | 2015-06-26 | 2015-09-16 | 上海交通大学 | Parallel flow heat exchanger of single header pipe |
| CN106322844A (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 |
| CN106322845A (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 |
| CN106322841A (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 |
| CN106322840A (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 |
| CN106322838A (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 |
| 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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| 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 |
| CN106322840A (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 |
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| 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 |
| CN106322846A (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 |
| CN106322839A (en) * | 2015-06-30 | 2017-01-11 | 杭州三花家电热管理系统有限公司 | Microchannel heat exchanger |
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| CN106322844A (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 |
| CN106568238A (en) * | 2015-10-10 | 2017-04-19 | 杭州三花家电热管理系统有限公司 | Microchannel heat exchanger |
| WO2017071355A1 (en) * | 2015-10-28 | 2017-05-04 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN107690204A (en) * | 2016-08-03 | 2018-02-13 | 芜湖艾尔达科技有限责任公司 | A kind of heating component |
| CN112524986A (en) * | 2019-09-17 | 2021-03-19 | 比亚迪股份有限公司 | Heat exchanger, heat exchanger module and vehicle |
| CN112524986B (en) * | 2019-09-17 | 2022-03-18 | 比亚迪股份有限公司 | Heat exchanger, heat exchanger module and vehicle |
| CN112427563A (en) * | 2020-06-22 | 2021-03-02 | 三花控股集团有限公司 | Heat exchanger and method for manufacturing the same |
| US20240102748A1 (en) * | 2022-09-23 | 2024-03-28 | Trane Air Conditioning Systems (China) Co., Ltd. | Multi-coil microchannel heat exchangers and air conditioning units |
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