CN203908113U - Microchannel heat exchanger and heat exchanging device - Google Patents

Microchannel heat exchanger and heat exchanging device Download PDF

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Publication number
CN203908113U
CN203908113U CN201420301607.9U CN201420301607U CN203908113U CN 203908113 U CN203908113 U CN 203908113U CN 201420301607 U CN201420301607 U CN 201420301607U CN 203908113 U CN203908113 U CN 203908113U
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China
Prior art keywords
heat exchanger
flat tube
micro
porous
channel heat
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CN201420301607.9U
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Chinese (zh)
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汪先送
程志明
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Abstract

The utility model discloses a microchannel heat exchanger and a heat exchanging device. The microchannel heat exchanger comprises two collecting pipes and flat pipes arranged between the two collecting pipes. Each flat pipe is provided with a fin. Each collecting pipe is composed of an outer solid pipe wall and an inner multi-hole microchannel structure, and/or each flat pipe is composed of an outer solid pipe wall and an inner multi-hole microchannel structure. According to the microchannel heat exchanger, the evenness of refrigerating fluid distributed to each flat pipe can be improved, the forceful heat exchanging effect of the flat pipes is improved, the heat exchanging efficiency is improved, and in addition, the electrochemistry corrosivity resistance of the heat exchanger can be improved.

Description

Micro-channel heat exchanger and heat transmission equipment
Technical field
The utility model relates to heat transfer technology field, relates in particular to a kind of micro-channel heat exchanger and heat transmission equipment.
Background technology
Micro-channel heat exchanger is a kind of new type high efficient heat exchanger that adopts aluminium flat conduit, aluminium fin to make, there is the advantages such as heat exchange efficiency is high, cost is low, electrochemically resistant corrosive power is strong, be widely used at present air conditioning for automobiles, radiator and water heater industry, on domestic air conditioning, also had preliminary application.
Traditional micro-channel heat exchanger mainly by micro-channel flat, be arranged at fin in micro-channel flat, be positioned over micro-channel flat two ends header, be used for header partition, end cap and the incoming/outgoing assembly of flow seal and form.Heat exchanger completes after assembling, soldering.
At present, the micro-channel flat that micro-channel heat exchanger uses is mainly as shown in Fig. 1 a and Fig. 1 b, this type of micro-channel flat generally adopts the moulding of mould extrusion, microchannel quantity in flat tube can be relatively many, flat tube material adopts 3 higher line aluminium alloys of corrosion resistance, the general employing in flat tube surface sprayed zinc processing, to improve the corrosion resistance of heat exchanger.
As shown in Fig. 2 a and Fig. 2 b, also there is at present a kind of complex wrapping flat tube, the type flat tube adopts aluminium sheet folding forming, aluminium sheet is generally made up of sandwich layer, anticorrosive coat and brazing layer, the type flat tube forming method is divided into two classes on the whole: one is to adopt the direct folding forming of aluminium sheet, and another kind of method is after the flat pipe hole dividing plate folding forming of flat tube inside, to be coated on flat tube outer wall aluminium sheet aftershaping.This type flat tube can do thinlyyer, and simultaneously, because anticorrosive coat material and moulding process have better controllability, complex wrapping flat tube has better corrosion resistance.Although the plastic microchannel of the type flat tube is more in theory, at present due to equipment and mould, the flat tube microchannel quantity of the type is few compared with pushing flat tube.
Micro-channel heat exchanger generally adopts extruding flat tube and band solder fin to carry out soldering, after soldering, on heat exchanger fin, be difficult to avoid solder residue problem, this can cause micro-channel heat exchanger fin surface relatively surface treated copper pipe aluminum fin heat exchanger roughness larger, condensation nuclei is provided while condensing for heat exchanger wall humid air on the one hand, also increased on the other hand the difficulty that condensate water is got rid of, the condensate water that is deposited in heat exchanger surface has formed very large heat transfer resistance, is restricting the performance of heat exchanger heat-transfer performance; In addition, due to micro-channel heat exchanger impeded drainage and surface relatively coarse, membranaceous or pearl water droplet easier forming core on coarse surface of remained on surface, thus accelerate micro-channel heat exchanger frosting.
In addition, the another one key factor that affects micro-channel heat exchanger heat exchange efficiency is micro-channel heat exchanger while using as evaporimeter, and cold-producing medium distributes very inhomogeneous, has " dry blowing " and " overfeeding " phenomenon.Micro-channel heat exchanger generally carries out cold-producing medium distribution by dividing plate and the incoming/outgoing offered on header, but because heat exchange header is vertically to place blank pipe, under Action of Gravity Field, liquid phase refrigerant can be gathered in the flat tube by dividing plate lower end, be difficult to ensure cold-producing medium uniform distribution, thereby can not give full play to the exchange capability of heat of micro-channel heat exchanger.
Utility model content
Main purpose of the present utility model be to provide a kind of simple in structure, distribution of refrigerant evenly, micro-channel heat exchanger and the heat transmission equipment of good effect of heat exchange.
In order to achieve the above object, the utility model proposes a kind of micro-channel heat exchanger, comprise two headers and be arranged on the flat tube between described two headers, described flat tube is provided with fin, and described header is made up of outer solid tube wall and inner porous MCA; And/or described flat tube is made up of outer solid tube wall and inner porous MCA.
Preferably, porosity and the pore size of the inner porous MCA of described header are uniformly distributed along header length and circumferencial direction; Or the porosity of the inner porous MCA of described header and pore size are along header length and circumferencial direction non-uniform Distribution.
Preferably, the outer solid tube wall of described header and inner porous MCA split arrange or are one-body molded.
Preferably, porosity and the pore size of the inner porous MCA of described flat tube are uniformly distributed along flat tube length and width; Or the porosity of the inner porous MCA of described flat tube and pore size are along flat tube length and width non-uniform Distribution.
Preferably, when the porosity of the inner porous MCA of described flat tube and pore size non-uniform Distribution and micro-channel heat exchanger are during as evaporimeter, porosity and the pore size of the inner porous MCA of described flat tube are ascending along flow of refrigerant direction; Micro-channel heat exchanger is contrary during as condenser.
Preferably, the outer solid tube wall of described flat tube and inner porous MCA split arrange or are one-body molded.
Preferably, the outer solid tube wall of described flat tube and the welding of inner porous MCA or roll-forming.
Preferably, the inside porous MCA of described flat tube adopts ordered porous material to make; Or the inside porous MCA of described flat tube adopts unordered porous material to make.
Preferably, the outer solid tube wall of described flat tube comprises from the inside to the outside: sandwich layer, sacrificed anticathode protective layer and solder layer; Described solder layer and the welding of described fin.
The utility model also proposes a kind of heat transmission equipment, comprises micro-channel heat exchanger as above.
A kind of micro-channel heat exchanger and the heat transmission equipment that the utility model proposes, on the one hand, in header in heat exchanger, be provided with porous microchannel, cold-producing medium flow direction in microchannel has randomness, can alleviate the gas-liquid separation phenomenon that Action of Gravity Field causes, improve cold-producing medium and be assigned to the uniformity in every flat tube, improve heat exchange efficiency; On the other hand, be provided with the more tiny porous microchannel of porous material composition in flat tube, can improve the internal surface area of flat tube, change gas-liquid two-phase in microchannel and flow and phase-change heat transfer rule, play enhanced heat exchange effect, heat exchanger heat exchange efficiency is higher; In addition, during as evaporimeter, along flow of refrigerant direction, porosity of porous material and the pore size of flat tube increase gradually, liquid refrigerant is in the time that through flat tube, evaporation is transformed into gaseous refrigerant gradually, specific volume and flow velocity increase, and resistance increases, and now flat tube porous microchannel volume increases, can reduce flow velocity, thereby reduce flow resistance, reduce throttle effect, improve system heat exchange efficiency; And during as condenser, cold-producing medium gradually becomes liquid by gaseous state, volume reduces, and porosity and pore size from large to small, can well be controlled cold-producing medium flow velocity and flow resistance, strengthens heat exchange efficiency.Further, due to flat tube band solder, after soldering, heat exchanger fin surface is more smooth compared with the fin surface of fin band solder, be conducive to arrange condensed water, smooth surface compared with the heterogeneous forming core point of rough surface still less, can suppress the frosting of heat exchanger low temperature simultaneously, promotes heat exchanger low-temperature heat exchange performance; Further, can accurately control because the solid tube wall material of flat tube has sacrificed anticathode alloy material composition and material thickness, can promote the electrochemical corrosion resistant of heat exchanger.
Brief description of the drawings
Fig. 1 a is the perspective view of existing extruding micro-channel flat;
Fig. 1 b is the schematic cross-section of existing extruding micro-channel flat;
Fig. 2 a is the perspective view of existing complex wrapping flat tube;
Fig. 2 b is the schematic cross-section of existing complex wrapping flat tube;
Fig. 3 is the front view of the utility model micro-channel heat exchanger embodiment;
Fig. 4 is the perspective view of the utility model micro-channel heat exchanger embodiment;
Fig. 5 is the front view of header in the utility model micro-channel heat exchanger the first embodiment;
Fig. 6 is the schematic cross-section of header in the utility model micro-channel heat exchanger the first embodiment;
Fig. 7 is the perspective view of flat tube in the utility model micro-channel heat exchanger the first embodiment;
Fig. 8 is the schematic cross-section of flat tube in the utility model micro-channel heat exchanger the first embodiment;
Fig. 9 be flat tube in the utility model micro-channel heat exchanger the first embodiment porous nickel distribute Fig. 8 shown in A-A direction partial sectional view;
Figure 10 is the A-A direction partial sectional view shown in the Fig. 8 of the hole uneven distribution of flat tube in the utility model micro-channel heat exchanger the first embodiment;
Figure 11 is the local amplification view of the outer solid tube wall of flat tube in the utility model micro-channel heat exchanger the first embodiment;
Figure 12 is the porous nickel distribution schematic diagram of flat tube in the utility model micro-channel heat exchanger the second embodiment;
Figure 13 is the hole uneven distribution schematic diagram of flat tube in the utility model micro-channel heat exchanger the second embodiment.
Figure 14 is the front view of header in the utility model micro-channel heat exchanger the 3rd embodiment;
Figure 15 is the schematic cross-section of header in the utility model micro-channel heat exchanger the 3rd embodiment;
In order to make the technical solution of the utility model clearer, clear, be described in further detail below in conjunction with accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Fig. 3-Fig. 8, the utility model the first embodiment proposes a kind of micro-channel heat exchanger, comprise and lay respectively at two headers (the first header 2 and the second header 8) at heat exchanger two ends and be arranged on the flat tube 11 between described two headers, described flat tube 11 is provided with fin 3, header is provided with pipe joint chair 4, end cap 1, diversion three-way valve 7, on pipe joint chair 4, connect incoming/outgoing 5, in header, be provided with the partition 6 for flow seal.Heat exchanger completes after assembling, soldering.
In the present embodiment, the porous microchannel header 18 that header is made up of outer solid tube wall 19 and inner porous MCA 20, as shown in Figures 5 and 6, owing to being provided with porous material microchannel in the header in the present embodiment micro-channel heat exchanger, cold-producing medium is assigned to each flat tube 11 through porous material in header, and porous material is a kind of material that is made up of network structure mutual perforation or blind bore hole, cold-producing medium flow direction in microchannel has randomness, can alleviate the gas-liquid separation phenomenon that Action of Gravity Field causes, thereby improve cold-producing medium and be assigned to the uniformity in every flat tube 11, improve the heat exchange efficiency of heat exchanger.
Porosity and the pore size of the inner porous MCA 20 of described header are adjustable, such as, porosity and pore size are uniformly distributed along header length and circumferencial direction, certainly, in other embodiments, the porosity of the inner porous MCA 20 of header and pore size are along header length and circumferencial direction non-uniform Distribution according to certain rules.
In the present embodiment, the outer solid tube wall 19 of header and inner porous MCA 20 can split settings, also can be one-body molded.Specifically can adopt following two kinds of methods to make header:
The first scheme is that header outer solid tube wall 19 materials separate with inner porous material, has assembly relation, in the time making, the header of forming, according to shunting partition position, is progressively put into zones of different by porous material.
First scheme is that header outer solid tube wall 19 materials and inner porous material are one-body molded, and then processes the position, hole on header.
In the present embodiment, described flat tube 11 is made up of outer solid tube wall 12 and inner porous MCA 13, as shown in Figures 7 and 8.
Cold-producing medium is in the interior circulation of the hole through porous material of flat tube 11, because the hole of porous material is under normal circumstances comparatively tiny, can increase the interior contact area of cold-producing medium and flat tube 11, in microchannel, gas-liquid two-phase is mobile simultaneously will be different from conventional large-size with phase-change heat transfer rule, microchannel is less, this dimensional effect is more obvious, thereby makes augmentation of heat transfer effect more obvious.
Wherein, porosity and the pore size of the inner porous MCA 13 of described flat tube 11 can be uniformly distributed along flat tube 11 length and width, as shown in Figure 9; In addition, the porosity of the inner porous MCA 13 of described flat tube 11 and pore size are along flat tube 11 length and width non-uniform Distribution according to certain rules.
Particularly, in the present embodiment, as the porosity of flat tube inside porous MCA 13 and the situation of pore size non-uniform Distribution, when described micro-channel heat exchanger is during as evaporimeter, porosity and the pore size of the inner porous MCA 13 of described flat tube 11 are ascending along flow of refrigerant direction (as shown by the arrows in Figure 10), when described micro-channel heat exchanger is during as condenser, porosity and the pore size of the inner porous MCA 13 of described flat tube 11 are descending along flow of refrigerant direction.
Adopt the inner porous MCA 13 of flat tube 11 of said structure feature, to consider: during as evaporimeter, along flow of refrigerant direction (as shown by the arrows in Figure 10), flat tube 11 porosity of porous material and pore size increase, liquid refrigerant is evaporating and is being transformed into gradually gaseous refrigerant through flat tube 11, specific volume and flow velocity increase, resistance increases, now flat tube 11 porous internal channel volumes increase, can reduce flow velocity, thereby reduce flow resistance, reduce throttle effect, improve system heat exchange efficiency; And during as condenser, cold-producing medium gradually becomes liquid by gaseous state, volume reduces, and porosity and pore size from large to small, can well be controlled cold-producing medium flow velocity and flow resistance, strengthens heat exchange efficiency.
In the present embodiment, the outer solid tube wall 12 of flat tube 11 and inner porous MCA 13 can split settings, also can be one-body molded.
Specifically can adopt following two kinds of methods to make flat tube 11:
The first scheme is the solid tube wall material that the porous material of flat tube 11 inside is wrapped in to flat tube 11 outsides, then adopts ratio-frequency welded tube or roll-forming.
First scheme is the method that porous material is adopted in certain mould to ratio-frequency welding, makes porous material top layer melt and form the pipe wall material of certain thickness and shape under mould action.
As a kind of embodiment, outer solid tube wall 12 structures of the flat tube 11 of the present embodiment as shown in figure 11.
The outer solid tube wall 12 of described flat tube 11 comprises from the inside to the outside: sandwich layer 14, sacrificed anticathode protective layer 15 and solder layer 16; wherein: internal layer sandwich layer 14 materials are made up of 3 higher line aluminium alloys of corrosion resistance; the serve as reasons sacrificial anode material on core material that is coated on of a position relatively low aluminium alloy composition of middle level sacrificed anticathode protective layer 15; outer solder layer 16 is for being the solder that is coated on intermediate layer of alloy composition by Al-Si, and trilaminate material thickness proportion is adjustable.
Described solder layer 16 welds with the fin 3 on flat tube 11, and because flat tube 11 has been with solder, the fin 3 being arranged on flat tube 11 is not with solder.
Because flat tube 11 is with solder, after soldering heat exchanger fin 3 surfaces compared with fin 3 fin 3 surfaces with solder more smooth, be conducive to arrange condensed water, simultaneously smooth surface compared with the heterogeneous forming core point of rough surface still less, can suppress the frosting of heat exchanger low temperature, promote heat exchanger low-temperature heat exchange performance.
In addition, can accurately control because the solid tube wall material of flat tube 11 has sacrificed anticathode alloy material composition and material thickness, can promote the electrochemical corrosion resistant of heat exchanger.
Also it should be noted that, in the present embodiment, the inside porous MCA 12 of flat tube 11 adopts unordered porous material to make.Certainly, the inside porous MCA 12 of described flat tube 11 can also adopt ordered porous material to make, and as shown in FIG. 12 and 13, Figure 12 is the porous nickel distribution schematic diagram of flat tube 11 in the utility model micro-channel heat exchanger the second embodiment; Figure 13 is the hole uneven distribution schematic diagram of flat tube 11 in the utility model micro-channel heat exchanger the second embodiment.
Compared to existing technology, above-described embodiment micro-channel heat exchanger tool has the following advantages:
First, in header in heat exchanger, be provided with porous material microchannel, cold-producing medium flow direction in microchannel has randomness, make refrigerant mixed and flow more even, can alleviate the gas-liquid separation phenomenon that Action of Gravity Field causes, improve cold-producing medium and be assigned to the uniformity in every flat tube 11, improve heat exchange efficiency.
The second, in flat tube 11, be provided with the more tiny microchannel that porous material forms, can improve the internal surface area of flat tube 11, change gas-liquid two-phase in microchannel and flow and phase-change heat transfer rule, play enhanced heat exchange effect, heat exchanger heat exchange efficiency is higher; Heating state, micro-channel heat exchanger is as evaporimeter, increase along flow of refrigerant direction flat tube 11 porosity of porous material and pore size, liquid refrigerant is evaporating and is being transformed into gradually gaseous refrigerant through flat tube 11, and specific volume and flow velocity increase, resistance increases, now porous flat pipe 11 internal channel volumes increase, and can reduce flow velocity, thereby reduce flow resistance, reduce throttle effect, improve system heat exchange efficiency; When refrigerating state, micro-channel heat exchanger is as condenser, and cold-producing medium gradually becomes liquid by gaseous state, volume reduces, now the porosity of the inner porous of flat tube 11 microchannel and pore size from large to small, can well be controlled cold-producing medium flow velocity and flow resistance, strengthen heat exchange efficiency.
The 3rd, because flat tube 11 is with solder, after soldering heat exchanger fin 3 surfaces compared with fin 3 fin 3 surfaces with solder more smooth, be conducive to arrange condensed water, smooth surface compared with the heterogeneous forming core point of rough surface still less, can suppress the frosting of heat exchanger low temperature simultaneously, promotes heat exchanger low-temperature heat exchange performance.Finally, can accurately control because the solid tube wall material of flat tube 11 has sacrificed anticathode alloy material composition and material thickness, can promote the electrochemical corrosion resistant of heat exchanger.
As shown in Figure 14 and Figure 15, the utility model the 3rd embodiment proposes a kind of micro-channel heat exchanger, be with the difference of above-mentioned the first embodiment, in the present embodiment, two headers of micro-channel heat exchanger are common header 17, and header inside do not have porous MCA, other are identical with the first embodiment.
Certainly, the utility model, for various combination mode, can also be listed various embodiments, does not enumerate one by one here.
In addition, the utility model also proposes a kind of heat transmission equipment, this heat transmission equipment can be the equipment that air-conditioner, radiator or water heater etc. need to use heat exchanger, this heat transmission equipment can adopt the micro-channel heat exchanger described in above-described embodiment, its design feature and general principle please refer to above-described embodiment, do not repeat them here.
The utility model embodiment micro-channel heat exchanger and heat transmission equipment, on the one hand, in header in heat exchanger, be provided with porous microchannel, cold-producing medium flow direction in microchannel has randomness, can alleviate the gas-liquid separation phenomenon that Action of Gravity Field causes, improve cold-producing medium and be assigned to the uniformity in every flat tube 11, improve heat exchange efficiency; On the other hand, be provided with the more tiny porous microchannel of porous material composition in flat tube 11, can improve the internal surface area of flat tube 11, change gas-liquid two-phase in microchannel and flow and phase-change heat transfer rule, play enhanced heat exchange effect, heat exchanger heat exchange efficiency is higher; In addition, during as evaporimeter, along flow of refrigerant direction, porosity of porous material and the pore size of flat tube 11 increase gradually, liquid refrigerant is evaporating while being transformed into gaseous refrigerant gradually through flat tube 11, specific volume and flow velocity increase, and resistance increases, and now flat tube 11 porous microchannel volumes increase, can reduce flow velocity, thereby reduce flow resistance, reduce throttle effect, improve system heat exchange efficiency; And during as condenser, cold-producing medium gradually becomes liquid by gaseous state, volume reduces, and porosity and pore size from large to small, can well be controlled cold-producing medium flow velocity and flow resistance, strengthens heat exchange efficiency.Further, because flat tube 11 is with solder, after soldering heat exchanger fin 3 surfaces compared with fin 3 fin 3 surfaces with solder more smooth, be conducive to arrange condensed water, smooth surface compared with the heterogeneous forming core point of rough surface still less simultaneously, can suppress the frosting of heat exchanger low temperature, promote heat exchanger low-temperature heat exchange performance; Further, can accurately control because the solid tube wall material of flat tube 11 has sacrificed anticathode alloy material composition and material thickness, can promote the electrochemical corrosion resistant of heat exchanger.
Above are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or flow process conversion that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims (10)

1. a micro-channel heat exchanger, comprises two headers and is arranged on the flat tube between described two headers, described flat tube is provided with fin, it is characterized in that, described header is made up of outer solid tube wall and inner porous MCA; And/or described flat tube is made up of outer solid tube wall and inner porous MCA.
2. micro-channel heat exchanger according to claim 1, is characterized in that, porosity and the pore size of the inner porous MCA of described header are uniformly distributed along header length and circumferencial direction; Or the porosity of the inner porous MCA of described header and pore size are along header length and circumferencial direction non-uniform Distribution.
3. micro-channel heat exchanger according to claim 1, is characterized in that, the outer solid tube wall of described header and inner porous MCA split arrange or be one-body molded.
4. according to the micro-channel heat exchanger described in any one in claim 1-3, it is characterized in that, porosity and the pore size of the inner porous MCA of described flat tube are uniformly distributed along flat tube length and width; Or the porosity of the inner porous MCA of described flat tube and pore size are along flat tube length and width non-uniform Distribution.
5. micro-channel heat exchanger according to claim 4, it is characterized in that, when the porosity of the inner porous MCA of described flat tube and pore size non-uniform Distribution and micro-channel heat exchanger are during as evaporimeter, porosity and the pore size of the inner porous MCA of described flat tube are ascending along flow of refrigerant direction; Micro-channel heat exchanger is contrary during as condenser.
6. micro-channel heat exchanger according to claim 4, is characterized in that, the outer solid tube wall of described flat tube and inner porous MCA split arrange or be one-body molded.
7. micro-channel heat exchanger according to claim 6, is characterized in that, the outer solid tube wall of described flat tube and the welding of inner porous MCA or roll-forming.
8. micro-channel heat exchanger according to claim 4, is characterized in that, the inside porous MCA of described flat tube adopts ordered porous material to make; Or the inside porous MCA of described flat tube adopts unordered porous material to make.
9. micro-channel heat exchanger according to claim 4, is characterized in that, the outer solid tube wall of described flat tube comprises from the inside to the outside: sandwich layer, sacrificed anticathode protective layer and solder layer; Described solder layer and the welding of described fin.
10. a heat transmission equipment, is characterized in that, comprises the micro-channel heat exchanger described in any one in claim 1-9.
CN201420301607.9U 2014-06-06 2014-06-06 Microchannel heat exchanger and heat exchanging device Active CN203908113U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006578A (en) * 2014-06-06 2014-08-27 广东美的制冷设备有限公司 Microchannel heat exchanger and heat exchange device
CN105605945A (en) * 2015-12-30 2016-05-25 赵炜 Heat exchanger with triangular through holes different in bottom side lengths
CN105627789A (en) * 2015-12-30 2016-06-01 赵炜 Heat exchanger with variable numbers of communicating holes
CN105928389A (en) * 2016-06-16 2016-09-07 宁波长发电器科技有限公司 Aluminum finned type heat exchanger
CN110168294A (en) * 2017-07-05 2019-08-23 日立江森自控空调有限公司 The outdoor heat exchanger of air conditioner and the air conditioner for having the outdoor heat exchanger

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104006578A (en) * 2014-06-06 2014-08-27 广东美的制冷设备有限公司 Microchannel heat exchanger and heat exchange device
CN105605945A (en) * 2015-12-30 2016-05-25 赵炜 Heat exchanger with triangular through holes different in bottom side lengths
CN105627789A (en) * 2015-12-30 2016-06-01 赵炜 Heat exchanger with variable numbers of communicating holes
CN105605945B (en) * 2015-12-30 2017-07-28 于仁麟 A kind of different triangle through hole heat exchanger of base length
CN105928389A (en) * 2016-06-16 2016-09-07 宁波长发电器科技有限公司 Aluminum finned type heat exchanger
CN110168294A (en) * 2017-07-05 2019-08-23 日立江森自控空调有限公司 The outdoor heat exchanger of air conditioner and the air conditioner for having the outdoor heat exchanger

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