CN204535515U - A kind of fin-type heat exchange unit and the heat exchanger containing this unit - Google Patents
A kind of fin-type heat exchange unit and the heat exchanger containing this unit Download PDFInfo
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- CN204535515U CN204535515U CN201520049780.9U CN201520049780U CN204535515U CN 204535515 U CN204535515 U CN 204535515U CN 201520049780 U CN201520049780 U CN 201520049780U CN 204535515 U CN204535515 U CN 204535515U
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Abstract
The utility model discloses a kind of fin-type heat exchange unit, comprise at least one deck interlayer board, be stackedly arranged on the upper surface of described interlayer board and/or the fin layer of lower surface, fin layer comprises two end plates, and be in the fin bar of the alternate setting some in a row between two end plates, between adjacent two fin bars, and form first medium circulation passage between the end plate that described in initial and end two, fin bar is corresponding with it, also disclose the micro-channel heat exchanger comprising fin-type heat exchange unit and fluid type heat exchange unit.Fin-type heat exchange unit gas flow is all smooth, small and the controllable precise of spacing of fin, heat exchange efficiency is high, and the heat exchange unit of varying number and fin-type heat exchange unit can be adopted according to the actual requirements to make the heat exchanger becoming various heat exchange amount, flexible operation is easy, is suitable for making miniature heat-exchanger rig.
Description
Technical field
The utility model belongs to heat exchanger technology field, relates in particular to a kind of fin-type heat exchange unit and the micro-channel heat exchanger containing this heat exchange unit.
Background technology
Along with the development of micromachine electronic system and very small chemical mechanical system, it is small and exquisite portable that traditional heat exchangers can not meet micromachine needs, can the requirement of movement flexibly, heat exchanger be miniaturizated to inexorable trend; Microchannel heat exchanger is due to lightweight, and floor space is little, obtains great concern in recent years, and is used widely in electronic heating element, small size gas turbine, air conditioning for automobiles and domestic air conditioning industry gradually.
Micro-channel heat exchanger refers to the heat exchanger of the equivalent diameter of flow channel within the scope of 0.1-1mm, because channel dimension is small, area-volume ratio is larger, surface action is stronger, thus the heat and mass efficiency of fluid is significantly improved, efficiency height 2-3 order of magnitude of comparable traditional heat exchangers, and there is the features such as compact conformation, quality be little, safe and reliable to operation, effectively can reduce the volume and weight of the plant equipment such as air-conditioning, and reduce the loading of cold-producing medium.
In prior art, copper pipe aluminum fin heat exchanger is a kind of traditional micro-channel heat exchanger, it is made up of header, copper pipe and blind shaped fin, by the medium in pipe with carry out heat exchange by the air of fin, but this heat exchanger has that heat exchange property is poor, weight is comparatively large and the shortcoming that cost of manufacture is higher; For solving the problems of the technologies described above, researcher develops a kind of full aluminium micro-channel parallel flow heat exchanger, full aluminium micro-channel parallel flow heat exchanger is formed by fixedly connecting by aluminium flat tube and the aluminum fin-stock with certain profile, a kind of micro channel heat exchanger disclosed in Chinese patent literature CN103148718A, comprise header, some flat tubes be fixedly connected with header and through surface treatment and the fin fixing with flat tube, this micro channel heat exchanger heat exchange property is better, and cost is lower and quality is light.
But fin is arranged in the gap of flat tube in the micro-channel heat exchanger in above-mentioned patent document, flat tube has certain obstruction to the air entering heat exchanger, affects heat exchange efficiency; Simultaneously because aluminium intensity is little, quality is softer, be easily out of shape, the fluid in flat tube under high pressure easily leaks, and therefore cannot be used for high-pressure refrigeration system.
In addition, no matter be copper pipe aluminum fin heat exchanger or full aluminium micro-channel parallel flow heat exchanger, heat exchange volume is all huger, due to the restriction of existing manufacturing process, the flat compact type heat exchanger that the area that takes up space is less cannot be made, thus cause the heat-exchange system floor spaces such as air cooling air conditioner excessive, be difficult to meet the demand of mechanical engineering field to microminiaturized heat transmission equipment.
Utility model content
For this reason, first technical problem to be solved in the utility model is that in prior art, micro-channel heat exchanger fin is arranged in the gap of flat tube, and heat exchange efficiency is affected;
Another technical problem to be solved in the utility model is, in prior art, the micro-channel heat exchanger area that takes up space is larger, full aluminium material intensity is little, quality is softer, easy distortion, high pressure heat exchange system cannot be used for, thus propose a kind of heat exchange efficiency is high, spacing of fin can accurately control fin-type heat exchange unit and make the method for this fin-type heat exchange unit, also proposed the flat compact-type micro-channel heat exchanger that a kind of area occupied is less, quality is firm.
For solving the problems of the technologies described above, the technical solution of the utility model is:
The utility model provides a kind of fin-type heat exchange unit, comprise at least one deck interlayer board and be stackedly arranged on the upper surface of described interlayer board and/or the fin layer of lower surface, described fin layer comprises two end plates, and be in the fin bar of the alternate setting some in a row described in two between end plate, described in adjacent two between fin bar, and form first medium circulation passage between the end plate that described in initial and end two, fin bar is corresponding with it.
In fin-type heat exchange unit of the present utility model, described interlayer board two ends form the first through hole respectively, end plate described in two form the second through hole communicated with described first through hole.
In fin-type heat exchange unit of the present utility model, described fin layer is formed by atoms permeating welding by double-layer separate fin layer or two-layer above point fin.
In fin-type heat exchange unit of the present utility model, described fin layer is welded by atoms permeating with between described interlayer board.
In fin-type heat exchange unit of the present utility model, described fin bar is shaped to rectangular strip, and end, the two ends chamfering of described fin bar is arranged.
In fin-type heat exchange unit of the present utility model, described chamfering is set to 30 °-60 °.
The utility model additionally provides a kind of micro-channel heat exchanger, comprise some fluid heat transfer unit, described fluid heat transfer unit forms the second medium circulation passage for second medium circulation, also comprise described fin-type heat exchange unit, described fluid heat transfer unit and described fin-type heat exchange unit intersecting are arranged.
In micro-channel heat exchanger of the present utility model, the two ends of described fluid heat transfer unit form the third through-hole communicated that to align with described first through hole of homonymy on described fin-type heat exchange unit or described second through hole, and wherein described first through hole of one end, described second through hole, described third through-hole form feed pathway, described first through hole of the other end, described second through hole, described third through-hole form liquid outlet channel, and described feed pathway, described liquid outlet channel respectively with import, the outlet of described second medium circulation passage.
In micro-channel heat exchanger of the present utility model, described fluid heat transfer unit is docked by two boards body and forms, the interface of described plate body forms respectively some half grooves, described second medium fluid passage is be arranged in described half groove with the runner that the cross section of linear array formal distribution is formed for the gap between pillar a kind of in circle, rhombus, camber or rectangle.
In micro-channel heat exchanger of the present utility model, described half groove is formed on described plate body by etching, and is docked by atoms permeating weldering between plate body described in two.
In micro-channel heat exchanger of the present utility model, the position near described third through-hole between plate body described in two is provided with the shape of cross section of circumference array formal distribution as support column a kind of in circle, rhombus or camber.
In micro-channel heat exchanger of the present utility model, the hydraulic diameter of described second medium fluid passage is d, and 0 < d < 0.6mm.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) fin-type heat exchange unit described in the utility model, fin layer is arranged at upper surface and/or the lower surface of carrier ring, wherein, fin layer comprises the fin bar of the alternate setting some in a row be between two end plates, described in adjacent two between fin bar, and forms first medium circulation passage between the end plate that described in initial and end two, fin bar is corresponding with it, in described first medium circulation passage, air circulation is unobstructed, and the amount of turnover air is comparatively large, improves heat exchange efficiency.
(2) fin-type heat exchange unit described in the utility model, fin layer welds welding by double-layer separate fin layer or two-layer above point fin layer by atoms permeating and is formed, for the hydraulic diameter making wind wing passage reach required, and fin layer thickness larger time, be difficult to be directly formed to fin bar, exceeded the restriction of raw material processing, the mode therefore adopting two-layer or two-layer above point fin layer to be welded by atoms permeating is made; Further, fin layer is formed with also being welded by atoms permeating between carrier ring; This kind of method open, eliminates the heat exchange property that thermal contact resistance affects described fin layer, and dividing fin layer junction quality good and being out of shape little of welding, can not affect the air circulation between first medium circulation passage.
(3) fin-type heat exchange unit described in the utility model, fin bar is shaped to rectangular strip, and end, the two ends chamfering of described fin bar is arranged, and arranging of chamfering can reduce the flow resistance of fin bar to air, increase the circulation of air, thus improve heat exchange efficiency further.
(4) method of the described fin-type heat exchange unit of making described in the utility model, by the fin bar chain that fin plate is formed two end plates by etching or punching press and is in described in two between end plate, then respectively end plate and fin bar chain are connected on interlayer board, finally the dowel overall wire at fin bar chain two ends is excised, expose the end, two ends of first medium circulation passage; This method can straight forming full wafer fin bar chain, and manufacture craft is simple, and the spacing between the fin bar size obtained and fin bar all can ensure very little, and can accurately control, and is very suitable for making miniature heat-exchanger rig.
(5) micro-channel heat exchanger described in the utility model, arranged by fluid heat transfer unit and fin-type heat exchange unit intersecting and form, fluid in moving air in fin-type heat exchange unit and fluid heat transfer unit can abundant heat-shift, heat exchange efficiency is high, and the heat exchange unit of varying number and fin-type heat exchange unit can be adopted according to the actual requirements to make the heat exchanger becoming various heat exchange amount, and flexible operation is easy.
(6) micro-channel heat exchanger described in the utility model, fluid heat transfer unit is docked by two boards body and forms, the interface of described plate body forms respectively some half grooves, second medium fluid passage is be arranged in described half groove with the runner that the gap between the pillar of linear array formal distribution is formed, this fluid passage form can extend the time that fluid flows wherein, strengthens heat transfer effect; Described second medium fluid channel dimensions is small, and hydraulic diameter can be less than 0.6mm, and the microchannel area-volume ratio that this size is less is larger, and surface action is stronger, and fluid heat transferring efficiency wherein is significantly improved.
(7) micro-channel heat exchanger described in the utility model, in fluid heat transfer unit, position near third through-hole between two plate bodys is provided with the support column of circumference array formal distribution, described support column can play the effect of flow-disturbing on the one hand when fluid enters second medium fluid passage, the exchange capability of heat of enhance fluid heat exchange unit, can play on the other hand and support pressure-bearing effect in two plate body welding processes.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of fin-type heat exchange unit described in the utility model;
Fig. 2 is the shaping cutting schematic diagram of fin-type heat exchange unit described in the utility model;
Fig. 3 is the structural representation of micro-channel heat exchanger described in the utility model;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the structural representation of fluid heat transfer unit described in the utility model;
Fig. 6 is the partial enlarged drawing of fluid heat transfer unit described in the utility model.
In figure, Reference numeral is expressed as: 1-fin-type heat exchange unit; 2-fluid heat transfer unit; 3-inlet header; 4-outlet collection pipe; 5-side plate; 6-line of cut; 11-interlayer board; 12-end plate; 13-fin bar; 14-second through hole; 21-third through-hole; 22-plate body; 23-half groove; 24-support column.
Detailed description of the invention
Below with reference to accompanying drawing, following embodiment is used to be further elaborated the utility model.
The present embodiment provides a kind of fin-type heat exchange unit 1, as shown in Figure 1, it comprise three layers of interlayer board 11 and four layers intert between three layers of interlayer board 11, the fin layer that be connected stacked with interlayer board.Certainly in other embodiments, interlayer board 11 can be arranged as required with the number of plies of fin layer.Described fin layer comprises two end plates 12, and be in the fin bar 13 of the alternate setting some in a row described in two between end plate 12, described in adjacent two between fin bar 13, and it is first, first medium circulation passage is formed between the end plate 12 that described in tail two, fin bar 13 is corresponding with it, welded by atoms permeating between described fin layer with described interlayer board 11, the setting of interlayer board 11 can increasing heat radiation area, the wing strip constructions of strip is simple, more easily manufacture relative to the wavy fin of point of the prior art, in the present embodiment, the setting of described first medium circulation passage, make by air circulation wherein unobstructed, the amount of turnover air is larger, heat exchange efficiency is high.
Further, described interlayer board 11 two ends form the first through hole respectively, end plate 12 described in two forming the second through hole 14 communicated with described first through hole, passing through for making liquid fluid.
Due to the fin bar on fin layer, size is very little, normally pass through etch-forming, and etching has strict demand to the thickness of fin plate, usual maximum gauge is no more than 0.5 millimeter, in order to ensure that the first medium circulation passage formed has enough height to carry out sufficient heat exchange, in the present embodiment, described fin layer is formed by atoms permeating welding by double-layer separate fin layer, certainly in other embodiments, two-layer above point fin layer can be had as required to be formed by atoms permeating welding, this kind of welding method open, eliminate the heat exchange property that thermal contact resistance affects described fin layer, and, that welds divides fin layer junction quality good and is out of shape little, the air circulation between first medium circulation passage can not be affected.
In the present embodiment, described fin bar 13 is shaped to rectangular strip, and the end, two ends of described fin bar 13 is that the chamfering of 45 ° is arranged, chamfering the flow resistance that can reduce fin bar 13 pairs of air is set, increase the circulation of air, thus improve heat exchange efficiency further.
When the size design of fin layer, the size of the height H 5 of every layer of described fin layer is typically designed to 0 < H5≤2mm, in the present embodiment, be preferably 1mm, with in the described fin layer of layer, the distance H6 between the described fin bar 13 of adjacent two row is designed and sized to 1≤H6≤3mm, in the present embodiment, be preferably 1 millimeter, the width H7 of single described fin bar 13 is designed and sized to 0 < H7≤0.5mm, is 0.3mm in the present embodiment.Certainly, above-mentioned size can be chosen according to actual needs.
Because the size of fin bar is very little, be directly easily out of shape during welding, and in order to ensure heat transfer effect, often require that the spacing that fin bar is welded on interlayer board need be consistent, in order to ensure Forming Quality and the heat transfer effect of fin layer.
The present embodiment additionally provides a kind of method making described fin-type heat exchange unit 1:
A, the fin bar chain that fin plate is formed two end plates 12 by etching and is in described in two between end plate 12, described end plate 12 forms the second through hole 14, described fin bar chain comprises the fin bar 13 of some alternate settings in a row, and branch office is in the two ends of described fin bar 13, and by two dowels of the end of described fin bar 13 homonymy connection;
As the disposable embodiment of one, the method for punching press can be adopted to form described end plate 12 and be in the fin bar chain described in two between end plate 12
B, respectively by described end plate, and described fin bar chain is welded on described interlayer board 11 by atoms permeating, described second through hole 14 on described end plate 12 is alignd with the first through hole on described interlayer board 11 communicate, described in adjacent two between fin bar 13, and form first medium circulation passage between the end plate that described in initial and end two, fin bar is corresponding with it;
C, as shown in Figure 2, along the described dowel excision of line of cut 6 by described fin bar chain two ends, makes the end, two ends of described first medium circulation passage expose.
The method of the making fin-type heat exchange unit described in the present embodiment, can by etching or punching press straight forming full wafer fin bar chain, because the gap between the fin bar on fin bar chain is uniform, therefore, when fin bar chain whole piece is welded on interlayer board, can ensure that the spacing between fin bar is even, after welding, two dowels of fin bar chain are excised, spacing thus between the fin bar size that obtains of method and fin bar all can ensure evenly, and can accurately control, manufacture craft is simple, is very suitable for making miniature heat-exchanger rig.
As shown in Figure 3-4, a kind of micro-channel heat exchanger with above-mentioned fin-type heat exchange unit of the present embodiment, also comprise some fluid heat transfer unit 2, described fluid heat transfer unit 2 forms the second medium circulation passage for second medium circulation, described fluid heat transfer unit 2 is arranged with described fin-type heat exchange unit 1 intersecting, fluid in moving air in fin-type heat exchange unit 1 and fluid heat transfer unit 2 can abundant heat-shift, heat exchange efficiency is high, and the fluid heat transfer unit 2 of varying number can be adopted according to the actual requirements to make with fin-type heat exchange unit 1 heat exchanger becoming various heat exchange amount, flexible operation is easy.Described second medium circulation passage passes through for cooling medium.When arranging, preferred described first medium circulation passage is arranged with second medium circulation passage is mutually vertical, can realize the forced convertion of air in above-mentioned two medium circulation passages and cooling medium.
As shown in Fig. 5-Fig. 6, the two ends of described fluid heat transfer unit 2 form the third through-hole 21 communicated that to align with described first through hole of homonymy on described fin-type heat exchange unit or described second through hole, and wherein described first through hole of one end, described second through hole 14, described third through-hole 21 form feed pathway, described first through hole of the other end, described second through hole 14, described third through-hole 21 form liquid outlet channel, and described feed pathway, described liquid outlet channel respectively with import, the outlet of described second medium circulation passage.
Further, also comprise and be arranged at bottom described micro-channel heat exchanger, the inlet header 3 communicated with feed pathway and be arranged at described micro-channel heat exchanger top, the outlet collection pipe communicated with liquid outlet channel and for by described fin-type heat exchange unit 1 and the fixing side plate 5 encapsulated of fluid heat transfer unit 2.
In the present embodiment, described fluid heat transfer unit 2 is docked by two boards body 22 and forms, the interface of described plate body 22 forms respectively some half grooves 23, described second medium fluid passage is be arranged in described half groove 23 with the runner that the gap between the pillar of linear array formal distribution is formed, described half groove 23 is formed on described plate body 22 by etching, and is docked by atoms permeating weldering between plate body 22 described in two; In the present embodiment, the hydraulic diameter of described second medium fluid passage is d, and 0=0.5mm; The thickness of described fluid heat transfer unit 2 is H1, and H1=0.8mm; Described second medium fluid channel dimensions is small, and hydraulic diameter can be less than 0.6mm, and the microchannel area-volume ratio that this size is less is larger, and surface action is stronger, and fluid heat transferring efficiency wherein is significantly improved.
In the present embodiment, the shape of cross section of described half groove B-C post is circular; As disposable embodiment, it can also be rhombus, camber or rectangle.
Further, the position near described third through-hole 21 between plate body 22 described in two is provided with the support column 24 with circumference array formal distribution, and in the present embodiment, the shape of cross section of described support column 24 is circular; As disposable embodiment, the shape of cross section of described support column 24 also can be rhombus or camber.Described support column 24 1 aspect can play the effect of flow-disturbing when fluid enters second medium fluid passage, the exchange capability of heat of enhance fluid heat exchange unit, can play supporting pressure-bearing effect on the other hand in two plate body 22 welding processes.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (12)
1. a fin-type heat exchange unit (1), it is characterized in that: comprise at least one deck interlayer board (11) and be stackedly arranged on the upper surface of described interlayer board and/or the fin layer of lower surface, described fin layer comprises two end plates (12), and be in the fin bar (13) of the alternate setting some in a row described in two between end plate, described in adjacent two between fin bar, and form first medium circulation passage between the end plate that described in initial and end two, fin bar is corresponding with it (12).
2. fin-type heat exchange unit according to claim 1, it is characterized in that: described interlayer board (11) two ends form the first through hole respectively, end plate described in two (12) forms the second through hole (14) communicated with described first through hole.
3. fin-type heat exchange unit according to claim 2, is characterized in that: described fin layer is formed by atoms permeating welding by double-layer separate fin layer or two-layer above point fin layer.
4. fin-type heat exchange unit according to claim 2, is characterized in that: described fin layer is welded by atoms permeating with between described interlayer board.
5. fin-type heat exchange unit according to claim 2, is characterized in that: described fin bar (13) is shaped to rectangular strip, and end, the two ends chamfering of described fin bar (13) is arranged.
6. fin-type heat exchange unit according to claim 5, is characterized in that: described chamfering is set to 30 °-60 °.
7. a micro-channel heat exchanger, comprise some fluid heat transfer unit (2), described fluid heat transfer unit (2) forms the second medium circulation passage for second medium circulation, it is characterized in that: also comprise some fin-type heat exchange units according to any one of claim 2-5, described fluid heat transfer unit (2) and described fin-type heat exchange unit (1) intersecting are arranged.
8. micro-channel heat exchanger according to claim 7, it is characterized in that, the two ends of described fluid heat transfer unit (2) form the third through-hole (21) communicated that to align with described first through hole of homonymy on described fin-type heat exchange unit or described second through hole, and described first through hole of wherein one end, described second through hole (14), described third through-hole (21) forms feed pathway, described first through hole of the other end, described second through hole (14), described third through-hole (21) forms liquid outlet channel, and described feed pathway, described liquid outlet channel respectively with the import of described second medium circulation passage, outlet.
9. micro-channel heat exchanger according to claim 8, it is characterized in that, described fluid heat transfer unit (2) is docked by two boards body (22) and is formed, the interface of described plate body (22) forms respectively some half grooves (23), described second medium fluid passage is for being arranged in described half groove (23) with the runner that the cross section of linear array formal distribution is formed for the gap between pillar a kind of in circle, rhombus or rectangle.
10. micro-channel heat exchanger according to claim 9, is characterized in that, described half groove (23) is formed on described plate body (22) by etching, and by atoms permeating weldering docking between plate body described in two (22).
11. micro-channel heat exchangers according to claim 10, it is characterized in that, be provided with near the position of described third through-hole (21) between plate body described in two (22) with the shape of cross section of circumference array formal distribution as support column (24) that is circular or rhombus.
12. micro-channel heat exchangers according to claim 11, is characterized in that, the hydraulic diameter of described second medium fluid passage is d, and 0 < d < 0.6mm.
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| CN201520049780.9U CN204535515U (en) | 2015-01-23 | 2015-01-23 | A kind of fin-type heat exchange unit and the heat exchanger containing this unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567509A (en) * | 2015-01-23 | 2015-04-29 | 杭州沈氏节能科技股份有限公司 | Fin type heat exchange unit, fin type heat exchange unit manufacturing method and heat exchanger with fin type heat exchange unit |
| CN108587874A (en) * | 2018-07-10 | 2018-09-28 | 湖北景源生物科技股份有限公司 | A kind of broad passage plate mash heat exchanger for cassava production alcohol |
| WO2021169532A1 (en) * | 2020-02-27 | 2021-09-02 | 浙江盾安人工环境股份有限公司 | Heat exchanger |
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2015
- 2015-01-23 CN CN201520049780.9U patent/CN204535515U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567509A (en) * | 2015-01-23 | 2015-04-29 | 杭州沈氏节能科技股份有限公司 | Fin type heat exchange unit, fin type heat exchange unit manufacturing method and heat exchanger with fin type heat exchange unit |
| CN104567509B (en) * | 2015-01-23 | 2016-06-22 | 杭州沈氏节能科技股份有限公司 | A kind of fin-type heat exchange unit and manufacture method and the heat exchanger containing this unit |
| CN108587874A (en) * | 2018-07-10 | 2018-09-28 | 湖北景源生物科技股份有限公司 | A kind of broad passage plate mash heat exchanger for cassava production alcohol |
| WO2021169532A1 (en) * | 2020-02-27 | 2021-09-02 | 浙江盾安人工环境股份有限公司 | Heat exchanger |
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