CN104879954B - Heat-exchange system and its heat exchanger - Google Patents
Heat-exchange system and its heat exchanger Download PDFInfo
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- CN104879954B CN104879954B CN201410068228.4A CN201410068228A CN104879954B CN 104879954 B CN104879954 B CN 104879954B CN 201410068228 A CN201410068228 A CN 201410068228A CN 104879954 B CN104879954 B CN 104879954B
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- heat exchanger
- exchanger fin
- layer heat
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- header
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
The present invention provides a kind of heat exchanger, it includes at least two layers of heat exchanger fin, every layer of heat exchanger fin includes lower header, upper header, multiple micro-channel flats of lower header and the fin being set between micro-channel flat in connection, refrigerant inlet pipe is provided in the lower header of first layer heat exchanger fin, the upper header of most last layer heat exchanger fin is provided with refrigerant outlet pipe, interface channel is provided between the upper header of preceding layer heat exchanger fin and the lower header of later layer heat exchanger fin, refrigerant enters later layer heat exchanger fin through the interface channel from preceding layer heat exchanger fin, the refrigerant flows up under in the micro-channel flat of every layer of heat exchanger fin.Heat exchanger of the invention, the refrigerant flow up under in the micro-channel flat of every layer of heat exchanger fin, can be improved the heat exchange property of heat exchanger.
Description
[technical field]
The invention belongs to field of heat exchange, especially with regard to multilayer parallel stream field of heat exchangers.
[background technique]
Heat exchanger needs the field for carrying out heat exchange all and can use, especially exist as a kind of heat exchange device many
In air-conditioning, heat exchanger is an important component of air-conditioning.Wherein because parallel-flow heat exchanger has high cooling efficiency, volume
The features such as small, light-weight, voltage endurance capability is strong, parallel-flow heat exchanger is more and more applied in air-conditioning.
Parallel-flow heat exchanger is mainly made of micro-channel flat, radiating fin and header.At the both ends of micro-channel flat
Equipped with header, for distributing and collecting refrigerant.Between adjacent micro-channel flat be equipped with it is undulatory or have blinds
The radiating fin of window shape, the heat exchange efficiency to enhanced heat exchange device and air side.
For parallel-flow heat exchanger because small in size, same space can be set into multilayer, the parallel-flow heat exchanger of multilayer because
The path flowed through for refrigerant is longer, so heat exchange property is also more preferable.
Referring to FIG. 1, the structural schematic diagram shown in FIG. 1 for existing dual-layer Parallel stream heat exchanger.1 ' is heat exchanger refrigeration
Agent inlet tube, 2 ' are refrigerant outlet pipe, and 3 ', 4 ', 5 ' and 6 ' are header, and 7 ' are fin, and 8 ' are micro-channel flat.Import
1 ' of pipe is located on 3 ' of header, and 2 ' of outlet is located on 6 ' of header.3 ' of header arranged adjacent parallel with 6 ' of header, afflux
4 ' of pipe and 5 ' of header also parallel arranged adjacent, and be equipped with through-hole on the binding face of 5 ' of 4 ' of header and header and make in the two
Chamber connection.8 ' of micro-channel flat is arranged parallel to each other, both ends matched respectively with 3 ' of header and 4 ' of header either with
5 ' of header and 6 ' of header are matched.7 ' of fin is arranged among adjacent 8 ' of micro-channel flat.
Arrow in Fig. 1 indicates flow direction of the refrigerant in heat exchanger.Refrigerant is flowed into from 1 ' of inlet tube first
3 ' of header flows to 4 ' of header by 8 ' of micro-channel flat after distribution, then passes through the through-hole between header 4 ' and 5 '
It enters in 5 ' of header, is then flowed in 6 ' of header through 8 ' of micro-channel flat, finally from 2 ' outflow heat exchanger of outlet.
Existing this Multi-layer exchanging heat device, refrigerant from 4 ' of header enter 5 ' of header after from 5 ' of header flow to
It is flowed from top to bottom when 6 ' of header, because the refrigerant in 5 ' of header is the admixture of gas and liquid, works as refrigeration
When agent flows downward from 5 ' of header, the refrigerant of liquid can be easier to flow downward due to gravity at this time, and gaseous refrigeration
Agent is more likely to move upwards due to lighter in weight, at this time the meeting in 5 ' of header of the refrigerant of liquid and gaseous refrigerant
Blocking is formed, unsmooth flowing influences heat exchange efficiency.In addition, being from upper past when refrigerant flows to 6 ' of header from 5 ' of header
When flowing down, the refrigerant of liquid because gravity effect, may be directly from the pipeline center of the inner cavity of 8 ' of micro-channel flat from upper
End 5 ' of header directly falls to 6 ' of lower end header, and liquid refrigerant is not with 8 ''s of micro-channel flat channel of heat exchanger at this time
Cavity wall contact, and gaseous refrigerant is extruded into and contacts with the internal chamber wall of 8 ' of micro-channel flat, and the microchannel of heat exchanger is flat
Tube passage is contacted with the air of surrounding carries out heat exchange, when liquid refrigerant is not contacted with the cavity wall in micro-channel flat channel and straight
It connecing when falling to lower end header, the heat transfer effect of some liquid refrigerant is had a greatly reduced quality, therefore heat transfer effect is undesirable,
Reduce the heat exchange property of heat exchanger.
Therefore, it is necessary to be improved to existing heat exchanger.
[summary of the invention]
The purpose of the present invention is to provide a kind of better heat exchangers of heat exchange property.
Another object of the present invention is to provide a kind of good heat-exchange systems of heat exchange property.
To achieve the aforementioned purpose, a kind of heat exchanger of the present invention comprising two layers of heat exchanger fin, every layer of heat exchanger fin include lower header
Pipe, upper header, multiple micro-channel flats of lower header and the fin being set between micro-channel flat in connection,
It is provided with refrigerant flow-through opening in the lower header of one layer of heat exchanger fin, the upper header of second layer heat exchanger fin is provided with refrigeration
It is logical to be provided with connection between the upper header of first layer heat exchanger fin and the lower header of second layer heat exchanger fin for agent flow-through opening
Road.
According to one embodiment of present invention, the circulation passage of the interface channel is greater than the circulation of the micro-channel flat
Channel.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, the interface channel
For a connecting tube for being set to every layer of heat exchanger fin one end, the upper header of first layer heat exchanger fin is run through in one end of the connecting tube
End cap be connected to the upper header of first layer heat exchanger fin, the other end of the connecting tube runs through the lower header of second layer heat exchanger fin
The end cap of pipe is connected to the lower header of second layer heat exchanger fin.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, the interface channel
For two connecting tubes for being set to every layer of heat exchanger fin both ends, each connecting tube extends through the upper header of first layer heat exchanger fin
End cap is connected to the upper header of first layer heat exchanger fin, the other end extend through the end cap of the lower header of second layer heat exchanger fin with
The lower header of second layer heat exchanger fin is connected to.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, the interface channel
It is set to the side on first layer heat exchanger fin, wherein the lower header of first layer heat exchanger fin is provided with partition and separates lower header
At first chamber and second chamber, refrigerant inlet pipe is set to first chamber, and first chamber passes through micro-channel flat and upper collection
Flow tube connection, second chamber is connected to the lower header of second layer heat exchanger fin, and the interface channel includes connecting tube and described the
The second chamber of one layer of heat exchanger fin, wherein one end of the connecting tube is connected to the upper header of first layer heat exchanger fin, the other end
It is penetrated through with the second chamber of the lower header of first layer heat exchanger fin.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, the interface channel
It is the two sides for being respectively arranged at first layer heat exchanger fin, there are two partitions by lower header for the lower header setting of first layer heat exchanger fin
Be separated into both ends first chamber and third chamber and centre second chamber, wherein the second chamber by microchannel it is flat
Pipe is connected to upper header, and the first chamber and third chamber at both ends are connected to the lower header of second layer heat exchanger fin, the company
Connect the first chamber and third chamber that road includes two connecting tubes and the first layer heat exchanger fin, one of connecting tube one end
It is connected to the upper header of first layer heat exchanger fin, the first chamber of the other end and first layer heat exchanger fin lower header penetrates through, another
A connecting tube one end is connected to the upper header of first layer heat exchanger fin, the third chamber of the other end and first layer heat exchanger fin lower header
Room perforation.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, the interface channel
It is the side for being set to second layer heat exchanger fin, the upper header of second layer heat exchanger fin is provided with partition for the upper of second layer heat exchanger fin
Header is separated into first chamber and second chamber, and refrigerant outlet pipe is set to the first chamber, the first chamber with
The lower header of second layer heat exchanger fin is connected to by micro-channel flat, the second chamber of the upper header of the second layer heat exchanger fin
It is connected to the upper header of first layer heat exchanger fin, the interface channel includes of header on connecting tube and second layer heat exchanger fin
The second chamber of two chambers, the connecting tube one end and second layer heat exchanger fin penetrates through, the other end and second layer heat exchanger fin
Lower header connection.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, the interface channel
It is the two sides for being set to second layer heat exchanger fin, there are two partitions by second layer heat exchanger fin for the upper header setting of second layer heat exchanger fin
Upper header be separated into the first chamber at both ends and the second chamber of third chamber and centre, refrigerant outlet pipe is set to
The second chamber, the second chamber are connected to the lower header of second layer heat exchanger fin by micro-channel flat, and described second
The first chamber and third chamber of the upper header of layer heat exchanger fin are connected to the upper header of first layer heat exchanger fin, and the connection is logical
Road includes the first chamber and third chamber of header on two connecting tubes and second layer heat exchanger fin, and the one of one of connecting tube
End and the first chamber of second layer heat exchanger fin penetrate through, and the other end is connected to the lower header of second layer heat exchanger fin, another connection
One end of pipe and the third chamber of second layer heat exchanger fin penetrate through, and the other end is connected to the lower header of second layer heat exchanger fin.
According to one embodiment of present invention, the header is lengthwise cylindrical tube closed at both ends, and the connecting tube is
It is set to the centre of first layer heat exchanger fin, the lower header setting of the first layer heat exchanger fin exchanges heat first layer there are two partition
The lower header of piece be separated into both ends first chamber and third chamber and centre second chamber, the first layer exchange heat
Refrigerant inlet pipe is respectively set in the first chamber and third chamber of the lower header of piece, the lower header of first layer heat exchanger fin
First chamber and third chamber are connected to by micro-channel flat with the upper header of first layer heat exchanger fin, the first layer heat exchanger fin
The second chamber of lower header be connected to the lower header of second layer heat exchanger fin, the interface channel include connecting tube with it is described
The second chamber of first layer heat exchanger fin, one end of the connecting tube are connected to the upper header of first layer heat exchanger fin, the other end with
The second chamber of the lower header of the first layer heat exchanger fin penetrates through.
To reach aforementioned another object, a kind of heat-exchange system of the present invention comprising heat exchanger above-mentioned, refrigerant is from institute
The refrigerant flow-through opening for stating the lower header of the first layer heat exchanger fin of heat exchanger flows into the lower header of first layer heat exchanger fin, from
The lower header of the first layer heat exchanger fin of the heat exchanger flows into the upper of the first layer heat exchanger fin by the micro-channel flat
Header flows into the lower header of the second layer heat exchanger fin from the upper header of the first layer heat exchanger fin through the interface channel
Pipe flows into the upper header of the second layer heat exchanger fin from the lower header of the second layer heat exchanger fin through the micro-channel flat
And the refrigerant flow-through opening outflow of the upper header through second layer heat exchanger fin.
Compared with prior art, Multi-layer exchanging heat device of the invention, upper header and the later layer of preceding layer heat exchanger fin are changed
The lower header of backing is connected by connecting tube, and refrigerant is from the upper header of preceding layer heat exchanger fin through the connecting tube from entrance
The lower header of later layer heat exchanger fin, refrigerant flow up under in the micro-channel flat of every layer of heat exchanger fin, such energy
Enough improve the heat exchange property of heat exchanger.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of existing dual-layer Parallel stream heat exchanger.
Fig. 2 is the structural schematic diagram of another angle of existing dual-layer Parallel stream heat exchanger.
Fig. 3 is the structural schematic diagram of the first embodiment of parallel-flow heat exchanger of the invention, wherein first layer heat exchanger fin
Upper header is connected to one end of the lower header of second layer heat exchanger fin by connecting tube.
Fig. 4 is the structural schematic diagram of another angle of parallel-flow heat exchanger shown in Fig. 3.
Fig. 5 is the exploded view of parallel-flow heat exchanger shown in Fig. 4.
Fig. 6 is the structural schematic diagram of the micro-channel flat in embodiment illustrated in fig. 5.
Fig. 7 is the enlarged diagram of micro-channel flat structure shown in fig. 6.
Fig. 8 is the enlarged structure schematic diagram of the fin in embodiment illustrated in fig. 5.
Fig. 9 is the cross-sectional view along the line A-A direction of the header of parallel-flow heat exchanger shown in Fig. 3.
Figure 10 is the structural schematic diagram of the second embodiment of parallel-flow heat exchanger of the invention, wherein first layer heat exchanger fin
Upper header is connected to the both ends of the lower header of second layer heat exchanger fin by two connecting tubes.
Figure 11 is the structural schematic diagram of another angle of parallel-flow heat exchanger shown in Figure 10.
Figure 12 is the cross-sectional view in the line B-B direction of the header of parallel-flow heat exchanger shown in Fig. 10.
Figure 13 is the structural schematic diagram of the 3rd embodiment of parallel-flow heat exchanger of the invention, wherein in first layer heat exchanger fin
Side be arranged interface channel, the interface channel include the partition of the lower header of connecting tube and first layer heat exchanger fin separate with
One chamber of the lower header connection of second layer heat exchanger fin.
Figure 14 is the structural schematic diagram of another angle of heat exchanger shown in Figure 13
Figure 15 is the exploded view of embodiment shown in Figure 13.
Figure 16 and Figure 17 is the structural schematic diagram of the fourth embodiment of parallel-flow heat exchanger of the invention, wherein in first layer
Two interface channels are arranged in the two sides of heat exchanger fin.
Figure 18 and Figure 19 is the structural schematic diagram of the 5th embodiment of parallel-flow heat exchanger of the invention, wherein in the second layer
The side of heat exchanger fin is arranged interface channel, the interface channel include the upper header of connecting tube and second layer heat exchanger fin partition every
A chamber being connected to first layer heat exchanger fin upper header that is opening.
Figure 20 and Figure 21 is the structural schematic diagram of the sixth embodiment of parallel-flow heat exchanger of the invention, wherein in the second layer
Two interface channels are arranged in the two sides of heat exchanger fin.
Figure 22 and Figure 23 is the structural schematic diagram of the 7th embodiment of parallel-flow heat exchanger of the invention, wherein in first layer
The intermediate of heat exchanger fin is arranged interface channel, the interface channel include the lower header of connecting tube and first layer heat exchanger fin partition every
The chamber being connected to the lower header of second layer heat exchanger fin opened.
Figure 24 and Figure 25 is the structural schematic diagram of the 8th embodiment of parallel-flow heat exchanger of the invention, wherein in the second layer
The intermediate of heat exchanger fin is arranged interface channel, the interface channel include the upper header of connecting tube and second layer heat exchanger fin partition every
A chamber being connected to first layer heat exchanger fin upper header that is opening.
[specific embodiment]
Specific embodiments of the present invention are illustrated with reference to the accompanying drawing.
Heat exchanger of the invention is for for refrigerant inflow and outflow, when refrigerant is flowed through from heat exchanger and heat exchanger
The air of surrounding carries out heat exchange.It please refers to shown in Fig. 3, Fig. 4 and Fig. 5, shows the first embodiment of heat exchanger of the invention
Structural schematic diagram.The refrigerant inlet pipe and refrigerant outlet pipe of heat exchanger of the invention are not shown in Fig. 5 wherein.Such as figure
3 to shown in Fig. 5, heat exchanger of the invention in this embodiment include it include refrigerant inlet pipe 1, refrigerant outlet pipe 2 with
And two layers of heat exchanger fin between refrigerant inlet pipe 1 and outlet 2.Wherein first layer heat exchanger fin includes the lower header being parallel to each other
Pipe 3, upper header 4.Second layer heat exchanger fin includes the lower header 5 being parallel to each other, upper header 6, in the upper of every layer of heat exchanger fin
Be provided between header and lower header both ends be inserted into respectively header it is several be parallel to each other it is spaced vertical micro- logical
Road flat tube 7 and the fin 8 between adjacent microchannel flat tube.One end and second of the upper header 4 of first layer heat exchanger fin
One end of the lower header 5 of layer heat exchanger fin is connected to by a connecting tube 9.Wherein formed in the lower header of first layer heat exchanger fin
The opening of the lower header 3 of opening, refrigerant inlet pipe 1 and first layer heat exchanger fin connects and the lower header with first layer heat exchanger fin
Pipe 3 is connected to, and opening, the upper afflux of refrigerant outlet pipe 2 and second layer heat exchanger fin are formed on the upper header of second layer heat exchanger fin
The opening of pipe 6 is connected and is connected to the upper header of second layer heat exchanger fin.In other embodiments, the refrigerant inlet pipe 1
It can also be integrally formed with the lower header 3 of first layer heat exchanger fin and form the communication port flowed into for refrigerant, the refrigerant
Outlet 2 can also be integrally formed with the upper header 6 of second layer heat exchanger fin and form the communication port that flows out for refrigerant.
It please refers to shown in Fig. 5, in the first embodiment of the present invention, the lower header 3 of the first layer heat exchanger fin and
The lower header 5 of two layers of heat exchanger fin is integrally formed.The lower header 3 of the first layer heat exchanger fin includes a hollow lengthwise
The both ends of cylindrical-shaped main body 31, the cylindrical-shaped main body 31 are closed by end cap 32, form the accommodating chamber flowed for refrigerant.It is described
Refrigerant inlet pipe 1 is located at the side of close one end of the lengthwise cylindrical-shaped main body 31.In the upper of lengthwise cylindrical-shaped main body 31
Surface offers several slits 33 through 31 barrel of main body being parallel to each other.It is set in the lower header 3 of first layer heat exchanger fin
It is equipped with a cylinder-shaped distribution pipe 34, the spaced through-hole 341 of certain amount is equipped on the tube wall of distribution pipe 34.The second layer
The lower header 5 of heat exchanger fin includes a hollow lengthwise cylindrical-shaped main body 51, and wherein the both ends of the cylindrical-shaped main body 51 pass through end
Lid 52 is closed.It is offered in the upper surface of the lengthwise cylindrical-shaped main body 51 of the lower header 5 of second layer heat exchanger fin several mutually flat
The capable slit through 51 barrel of main body.A cylinder-shaped distribution pipe 53 is provided in the lower header 5 of second layer heat exchanger fin,
The spaced through-hole 531 of certain amount is equipped on the tube wall of distribution pipe 53.The lower header 3 of first layer heat exchanger fin and second
A barrel is shared between the lower header 5 of layer heat exchanger fin, but is not connected to mutually.
The upper header 4 of the first layer heat exchanger fin is integrally formed with the upper header 6 of second layer heat exchanger fin.It is described
The upper header 4 of first layer heat exchanger fin includes a hollow lengthwise cylindrical-shaped main body 41, wherein the both ends of the cylindrical-shaped main body 41
It is closed by end cap 42, forms the accommodating chamber flowed for refrigerant.It is cylinder-shaped in the lengthwise of the upper header 4 of first layer heat exchanger fin
The lower surface of main body 41 offers several slit (not labeled) through 41 barrel of main body being parallel to each other.The second layer heat exchange
The upper header 6 of piece includes a hollow lengthwise cylindrical-shaped main body 61, and wherein the both ends of the cylindrical-shaped main body 61 pass through end cap 62
Closing forms the accommodating chamber flowed for refrigerant.Under the lengthwise cylindrical-shaped main body 61 of the upper header 6 of second layer heat exchanger fin
Surface offers several slits 63 through 61 barrel of main body being parallel to each other, the upper header 4 of first layer heat exchanger fin and second
The upper header 6 of heat exchanger fin shares a barrel, but is not connected to mutually.In the cylindrical shape of the upper header 6 of second layer heat exchanger fin
The side of close one end of main body 61 is provided with a refrigerant outlet pipe 2.
As shown in FIG. 6 and 7, the micro-channel flat 7 generally lengthwise flattened rectangular cavity body, along its longitudinally shape
At there is several spaced walls 71, which is separated into several parallel microchannels 72 for the flattened rectangular cavity body.
As shown in figure 8, the fin 8 is that strip flake aluminum passes through continuous " several " fonts being repeatedly bent to form.
As shown in Figures 3 to 5, in this embodiment, it is straight tube, the cylinder U-shaped of both ends bending that the connecting tube 9, which is centre,
Bend pipe.
When assembling, the refrigerant inlet pipe 1 is installed on the cylindrical-shaped main body 31 of the lower header 3 of first layer heat exchanger fin
Close to the side of one end.3 barrel of lower header of one end insertion first layer heat exchanger fin of the micro-channel flat 7 of first heat exchanger fin
In slit 33, the slit of 4 barrel of upper header of the other end insertion first layer heat exchanger fin of the micro-channel flat 7 of the first heat exchanger fin
It is interior, then by being welded at the slit of the lower header 3 of first layer heat exchanger fin and 4 barrel of upper header of first layer heat exchanger fin
The lower header 3 of the upper header 4 and first layer heat exchanger fin of micro-channel flat 7 and first layer heat exchanger fin is fixed.The fin 8
It is set between two adjacent micro-channel flats 7, is fixed together by welding with micro-channel flat 7, wherein scheming
In the fins of entire heat exchanger upper and lower ends is only shown, intermediate is not shown.The one of the micro-channel flat 7 of second heat exchanger fin
The slit of 5 barrel of lower header of end insertion second layer heat exchanger fin, the other end are inserted into 6 barrel of upper header of second layer heat exchanger fin
Slit 63 in, then by welding at the slit of afflux barrel wall by the upper collection of micro-channel flat 7 and second layer heat exchanger fin
Flow tube 6 and the lower header of second layer heat exchanger fin 5 are fixed.The fin 8 is set between two adjacent micro-channel flats 7,
It is fixed together by welding with micro-channel flat 7.It will be upper and lower by end plate 10 in the left and right ends of entire heat exchanger
Header is fixedly connected.Wherein micro-channel flat 7 is inserted into certain depth inside each header, the end of micro-channel flat 7 and collection
Flow tube internal chamber wall is separated by a certain distance, so that the microchannel 72 of afflux tube cavity and micro-channel flat 7 is interconnected.The connection
One end of pipe 9 is connected to through the end cap 42 of upper header 4 of first layer heat exchanger fin with the upper header 4 of first layer heat exchanger fin, institute
The other end of connecting tube 9 is stated under the end cap 52 and second layer heat exchanger fin of one end of the lower header 5 of second layer heat exchanger fin
Header 5 is connected to, and the upper header 4 of such first layer heat exchanger fin and the lower header 5 of second layer heat exchanger fin are connected by cylinder-shaped
The interface channel connection that adapter tube 9 is formed.
As shown in figure 9, it shows the lower header 3 of first layer heat exchanger fin and the lower header 5 of second layer heat exchanger fin in Fig. 3
Cross-sectional view along line A-A direction, the refrigerant inlet pipe 1 in the lower header 3 of first layer heat exchanger fin with 34 phase of distribution pipe
Connection.In the lower header 5 of second layer heat exchanger fin, the lower header 5 of second layer heat exchanger fin is run through in one end of the connecting tube 9
End cap 52 be connected with the cylinder-shaped distribution pipe 53.
At work, as shown in the black arrow in Fig. 3 and Fig. 4, refrigerant enters first layer by refrigerant inlet pipe 1
In distribution pipe 34 in the lower header 3 of heat exchanger fin, first layer heat exchanger fin is entered by the through-hole 341 on 34 tube wall of distribution pipe
In the inner cavity of lower header 3, then refrigerant flows upwardly into the upper of first layer heat exchanger fin by the microchannel 72 of micro-channel flat 7
Header 4 flows into the upper collection of first layer heat exchanger fin in refrigerant from the lower header 3 of first layer heat exchanger fin through micro-channel flat 7
When flow tube 4, a part of liquid refrigerant gasification in micro-channel flat 7 becomes gaseous refrigerant, and liquid refrigerant becomes gaseous state
It needs to absorb heat when refrigerant, refrigerant carries out heat exchange by micro-channel flat 7 and surrounding air, draws the heat of surrounding air
Amount.Refrigerant into the gas-liquid mixed of the upper header 4 of first layer heat exchanger fin enters second layer heat exchanger fin by connecting tube 9
In the distribution pipe 53 of lower header 5, through-hole 531 of the refrigerant Jing Guo distribution pipe 53 uniformly flows into the next part of second layer heat exchanger fin
In 5 inner cavity of flow tube.Refrigerant in 5 inner cavity of lower header of second layer heat exchanger fin flows upwardly into second by micro-channel flat 7
The upper header 6 of layer heat exchanger fin flows into the second layer through micro-channel flat 7 from the lower header 5 of second layer heat exchanger fin in refrigerant
When the upper header 6 of heat exchanger fin, a part of liquid refrigerant gasification in micro-channel flat 7 becomes gaseous refrigerant, liquid system
Cryogen becomes to need to absorb heat when gaseous refrigerant, and refrigerant carries out heat exchange by micro-channel flat 7 and surrounding air, draws week
Enclose the heat of air.
In heat exchanger of the invention, the refrigerant passes through connection after the upper header 4 for flowing into first layer heat exchanger fin
Pipe 9 flows into the lower header 5 of second layer heat exchanger fin, and the upper afflux of second layer heat exchanger fin is then flowed upwardly into through micro-channel flat 7
In pipe 6, refrigerant is to flow from bottom to top in the micro-channel flat 7 of two layers of heat exchanger fin, because refrigerant is flat in microchannel
When flowing from bottom to top in pipe, gaseous refrigerant can quickly and evenly be flowed from micro-channel flat lower end because of lighter in weight
To micro-channel flat upper end, and the refrigerant of liquid can first be accumulated in header, then enter back into micro-channel flat channel
In, the cavity wall of micro-channel flat can be squeezed and is more posted by by gaseous refrigerant into the liquid refrigerant in micro-channel flat,
It is more advantageous to and carries out heat exchange with the air outside micro-channel flat, the heat exchange property of heat exchanger can be effectively improved.
The structural schematic diagram that the second embodiment of heat exchanger of the invention is shown shown in Figure 10 and Figure 11 is please referred to,
In the element that is identical with the first embodiment using identical label.The difference of the second embodiment and aforementioned first embodiment exists
In the both ends of the upper header 4 of the first layer heat exchanger fin pass through the lower header of two connecting tubes 9 and second layer heat exchanger fin respectively
The both ends of pipe 5 are connected to.It please refers to shown in Figure 12, the cross-sectional view in the line B-B direction of embodiment illustrated in fig. 10 is shown, in Figure 12
Shown, two connecting tubes 9 extend through under the both ends end cap 52 and second layer heat exchanger fin of the lower header 5 of second layer heat exchanger fin
The cavity of header is connected to, because refrigerant is flowed into from the both ends of the lower header 5 of second layer heat exchanger fin, relative to preceding
The refrigerant of one embodiment is flowed into from one end of the lower header 5 of second layer heat exchanger fin, and the refrigerant of inflow is relatively uniform, so
Distribution pipe 53 in the embodiment not in the lower header 5 of second layer heat exchanger fin in setting previous embodiment.Certainly, at it
Distribution pipe 53 can also be set in his embodiment in the lower header 5 of second layer heat exchanger fin, and two connecting tubes 9 are respectively from two sides
It is connected to distribution pipe 53, refrigerant enters distribution pipe 53 through connecting tube 9 and then flowed by the through-hole 531 on 53 tube wall of distribution pipe
Enter the inner cavity of the lower header 5 of second layer heat exchanger fin.
In the above embodiment, the lower header 5 of the lower header 3 of the first layer heat exchanger fin and second layer heat exchanger fin
Be it is integrally formed, the upper header 4 of the first layer heat exchanger fin and the upper header 6 of second layer heat exchanger fin are to be integrally formed
, in other embodiments, first heat exchanger fin is also possible to be separated from each other respectively molding with the second heat exchanger fin.Aforementioned reality
It applies in example, the connecting tube 9 is from the lower header 5 of the end of the upper header 4 of first layer heat exchanger fin and second layer heat exchanger fin
End connection, in other embodiments, the connecting tube 9 is also possible in addition to from the upper header 4 of first layer heat exchanger fin
Except end is connected to the end of the lower header 5 of second layer heat exchanger fin, the upper afflux from first layer heat exchanger fin can also be set
The connecting tube that the middle part of pipe 4 is connected to the middle part of the lower header 5 of second layer heat exchanger fin, the quantity of connecting tube is more, then freezes
The distribution of lower header 5 of the agent from the upper header 4 of first layer heat exchanger fin to second layer heat exchanger fin is more uniform.And the connection
The shape of pipe is also not limited to cylinder-shaped connecting tube, can also using section be triangle or rectangle or diamond shape etc. other
The connecting tube of shape.The explanation only carried out by taking double-deck heat exchanger as an example in previous embodiment, in other embodiments, the heat exchange
Device can be including three layers of heat exchanger fin or four layers of heat exchanger fin or more layers heat exchanger fin.
It please refers to shown in Figure 13 to Figure 15, shows the structural representation of the 3rd embodiment of parallel-flow heat exchanger of the invention
Figure, wherein element identical with previous embodiment uses identical label.In the 3rd embodiment, in first layer heat exchanger fin
Position in the cavity of lower header 3 close to afflux tube chamber one end is provided with a partition 311 will be under first layer heat exchanger fin
Header 3 is separated into two mutual disconnected first chambers 312 and second chamber 313, and wherein the length of first chamber 312 is than
Two chambers 313 are long.The second chamber upper surface of the lower header 3 of first layer heat exchanger fin is provided with opening 314.First layer heat exchange
The upper header 4 of piece includes lengthwise cavity 41, the both ends of cavity is provided with end cap 42, in the position of close one end of lengthwise cavity
It installs and is equipped with opening 43.Side on first layer heat exchanger fin is provided with a connecting tube 9.The upper end of the connecting tube 9 is inserted into
The cavity of the upper header 4 of the opening 43 and first layer heat exchanger fin of the cavity lower surface of first layer heat exchanger fin is connected to, the connection
The lower header 3 of opening 314 and first layer heat exchanger fin on the lower header cavity of the lower end insertion first layer heat exchanger fin of pipe 9
The lesser second chamber 313 of the length that partition 311 separates is connected to.The second chamber 313 of the lower header 3 of first layer heat exchanger fin with
The chamber of the lower header 5 of second layer heat exchanger fin is connected to by through-hole 35.The lower header of connecting tube 9 and first layer heat exchanger fin in this way
The second chamber 313 of 3 side of pipe collectively constitutes the upper header 4 of connection first layer heat exchanger fin and the lower header of second layer heat exchanger fin
The interface channel of pipe 5.The longer first chamber 312 of the length of the lower header 3 of refrigerant inlet pipe 1 and first layer heat exchanger fin connects
It is logical.When work, refrigerant enters the first chamber 312 of the lower header 3 of first layer heat exchanger fin through inlet tube 1, then refrigerant
Enter the upper header 4 of first layer heat exchanger fin from the bottom up by micro-channel flat 7, the upper header 4 of first layer heat exchanger fin
Refrigerant enters the second chamber 313 of the lower header 3 of first layer heat exchanger fin using connecting tube 9, under first layer heat exchanger fin
In the cavity for the lower header 5 that refrigerant in the second chamber 313 of header 3 enters second layer heat exchanger fin by through-hole 35,
Then the upper afflux of second layer heat exchanger fin is flowed into from the bottom up by micro-channel flat 7 from the lower header 5 of second layer heat exchanger fin
Pipe 6 is flowed out from refrigerant outlet pipe 2.
Because header is cylindrical cavity, to make connecting tube and header convenient welding, the connecting tube 9 is one
The micro-channel flat that section is generally rectangular shaped, but the connecting tube 9 is different from the micro-channel flat 7 for heat dissipation, the connecting tube 9
It is micro- that internal diameter is bigger than the internal diameter of the heat dissipation micro-channel flat 7 of heat exchanger or the circulation passage of the connecting tube 9 radiates than microchannel
The circulation passage of channel flat tube 7 is big, namely refrigerant is flowed in connecting tube than in microchannel heat dissipation microchannel in the present invention
Flowing is fast in flat tube.The connecting tube 9 is also possible to the communicating pipe of round tube or other any sections in other embodiments, corresponding
First layer heat exchanger fin upper header 4 cavity opening 43 and first layer heat exchanger fin lower header 3 second chamber 313
Opening 314 can be the opening of flat mouth or round mouth or other shapes.
Such as aforementioned first embodiment can also be set in the 3rd embodiment in the lower header 3 of first layer heat exchanger fin
Described in distribution pipe 34, distribution pipe 53, following other embodiments also can be set in the lower header 5 of second layer heat exchanger fin
Also distribution pipe can be set, the specific structure about distribution pipe is no longer described in detail.
In the 3rd embodiment, described 9 one end of connecting tube is through the lengthwise table of the upper header 4 of first layer heat exchanger fin
Face, the other end run through in the second chamber 313 of the lower header 3 of first layer heat exchanger fin being divided by partition 311, the second chamber
Room 313 is connected with the lower header 5 of second layer heat exchanger fin.The upper end for being also possible to connecting tube 9 in other embodiments is run through
The lengthwise surface of the upper header 4 of first layer heat exchanger fin, and the lower end of connecting tube 9 and the lower header 3 of first layer heat exchanger fin are
Separately positioned, the lower end of connecting tube 9 is connected using the lower header 5 of the direct and second layer heat exchanger fin in aforementioned first embodiment
The connecting tube of logical integral type.
Please refer to the fourth embodiment that parallel-flow heat exchanger of the invention is shown shown in Figure 16 and Figure 17, identical member
Part uses label identical with previous embodiment.In this embodiment, two close end is leaned in the lower header 3 of first layer heat exchanger fin
311 ' of partition, 315 ' are respectively set in place, and the lower header 3 of first layer heat exchanger fin is separated into three by 311 ' of the partition, 315 '
A mutually disconnected 312 ' of chamber, 313 ', 316 ', wherein 312 ' of first chamber and 316 ' of third chamber of left and right ends are than intermediate
313 ' of second chamber it is short.Refrigerant inlet pipe 1 is set to 313 ' of second chamber among the lower header of first layer heat exchanger fin.
313 ' of second chamber of the lower header 3 of first layer heat exchanger fin passes through the upper header 4 of micro-channel flat 7 and first layer heat exchanger fin
Connection.312 ' of first chamber and 316 ' of third chamber and the second layer of 3 left and right ends of lower header of first layer heat exchanger fin exchange heat
The lower header 5 of piece passes through through-hole connection (not shown).Two connecting tubes 9 are respectively set in the two sides of first layer heat exchanger fin.Two
One end of a connecting tube 9 connects through the cavity of the upper header 4 of first layer heat exchanger fin and the upper header 4 of first layer heat exchanger fin
It is logical, the first chamber at the both ends that 311 ' of partition, 315 ' that the other end extends through the lower header 3 into first layer heat exchanger fin are divided into
312 ' of first chamber of 3 two sides of lower header of 316 ' of 312 ' and third chamber, two such connecting tube 9 and first layer heat exchanger fin
The lower header 5 of the upper header 4 and second layer heat exchanger fin that are connected to first layer heat exchanger fin is collectively constituted with 316 ' of third chamber
Interface channel.Work schedule cryogen enters the second chamber among the lower header 3 of first layer heat exchanger fin by refrigerant inlet pipe 1
313 ' of room, then refrigerant by micro-channel flat 7 from 313 ' of second chamber among the lower header 3 of first layer heat exchanger fin by
Under move upwards upper header 4 into first layer heat exchanger fin, refrigerant passes through two in the upper header 4 of first layer heat exchanger fin
The connecting tube 9 at end flows downwardly into 316 ' of 312 ' of first chamber and third chamber at 3 both ends of lower header of first layer heat exchanger fin, system
Cryogen is entered the lower header 5 of second layer heat exchanger fin using through-hole by 312 ' of first chamber and 316 ' of third chamber, is then made
Cryogen is flowed into the upper afflux of second layer heat exchanger fin by micro-channel flat 7 by the lower header 5 of second layer heat exchanger fin from the bottom up
Then pipe 6 is flowed out through refrigerant outlet pipe 2.
It please refers to shown in Figure 18 and Figure 19, the structural schematic diagram of the fifth embodiment of the present invention is shown, wherein identical
Element and aforementioned other embodiments use identical label.In this embodiment, the side of the upper header 6 of second layer heat exchanger fin
One partition 611 is set, the upper header 6 of second layer heat exchanger fin is divided into mutual disconnected first chamber 612 and second chamber
613, the length of first chamber 612 is longer than the length of second chamber 613.The first chamber of the upper header of second layer heat exchanger fin
612 are connected to the lower header 5 of second layer heat exchanger fin by micro-channel flat 7, and refrigerant outlet pipe 2 is set to second layer heat exchange
In the first chamber 612 of the upper header 6 of piece, the upper header 4 of second chamber 613 and first layer heat exchanger fin passes through through-hole (not
Diagram) connection.The side of second layer heat exchanger fin is provided with a connecting tube 9, one end of the connecting tube 9 is run through into the second layer
In the second chamber 613 of the upper header 6 of heat exchanger fin, the other end of connecting tube 9 runs through the lower header 5 into second layer heat exchanger fin
Interior, such connecting tube 9 is collectively constituted with the second chamber 613 of 6 side of upper header of second layer heat exchanger fin to be connect first layer and changes
The interface channel of header 4 and second layer heat exchanger fin lower header 5 on backing.Refrigerant is from refrigerant inlet pipe 1 at work
Into the lower header 3 of first layer heat exchanger fin, the upper of first layer heat exchanger fin is then moved to from bottom to top by micro-channel flat 7
Header 4, refrigerant enter the upper header 6 of second layer heat exchanger fin from the upper header 4 of first layer heat exchanger fin by through-hole again
Second chamber 613 in, then refrigerant by connecting tube 9 from the second chamber 613 of the upper header 6 of second layer heat exchanger fin into
Enter the lower header 5 of second layer heat exchanger fin, refrigerant again from the lower header 5 of second layer heat exchanger fin by micro-channel flat 7 from
Under be up moved into second layer heat exchanger fin upper header 6 first chamber 612 in, finally through refrigerant outlet pipe 2 flow out.
It please refers to shown in Figure 20 and Figure 21, the structural schematic diagram of the sixth embodiment of the present invention is shown, wherein identical
Element uses label identical with aforementioned other embodiments.In this embodiment, the two sides of the upper header 6 of second layer heat exchanger fin
Be respectively set 611 ' of partition, 614 ' by the upper header 6 of second layer heat exchanger fin be divided into mutual disconnected 612 ' of first chamber,
615 ' of 613 ' of second chamber and third chamber, wherein 612 ' of first chamber and 615 ' of third chamber of two layers of heat exchanger fin two sides and
The upper header 4 of one layer of heat exchanger fin is set to by through-hole connection (not shown), refrigerant outlet pipe 2, second layer heat exchanger fin
613 ' of second chamber among upper header 6.613 ' of second chamber of the upper header 6 of second layer heat exchanger fin is flat by microchannel
Pipe 7 is connected to the lower header 5 of second layer heat exchanger fin.In the two sides of second layer heat exchanger fin, there are two connecting tube 9, two companies for setting
One end of adapter tube 9 extends through in 615 ' of 612 ' of first chamber and third chamber of the upper header 6 of second layer heat exchanger fin, and two
The other end of a connecting tube 9 runs through in the lower header 5 of second layer heat exchanger fin, two such connecting tube 9 and second layer heat exchange
612 ' of first chamber at 6 both ends of upper header of piece collectively constitutes the upper afflux for being connected to first layer heat exchanger fin with 615 ' of third chamber
The interface channel of the lower header 5 of pipe 4 and second layer heat exchanger fin.Refrigerant enters first from refrigerant inlet pipe 1 at work
The lower header 3 of layer heat exchanger fin, then moves to the upper header 4 of first layer heat exchanger fin from bottom to top by micro-channel flat 7,
Refrigerant respectively enters the of the upper header 6 of second layer heat exchanger fin from the upper header 4 of first layer heat exchanger fin by through-hole again
In 615 ' of one chamber, 612 ' and third chamber, then refrigerant enters the lower header of second layer heat exchanger fin by two connecting tubes 9
Pipe 5, refrigerant are moved into the second layer by micro-channel flat 7 from the lower header 5 of second layer heat exchanger fin again from the bottom up and change
613 ' of second chamber of the upper header 6 of backing is flowed out through refrigerant outlet pipe 2.
It please refers to shown in Figure 22 and Figure 23, the structural schematic diagram of the seventh embodiment of the present invention is shown, wherein identical
Element uses label identical with aforementioned other embodiments.In this embodiment, the centre of the lower header 3 of first layer heat exchanger fin
Two 311 ' ' of partition, 312 ' ' are set, the lower header 3 of first layer heat exchanger fin is separated into mutual disconnected first chamber
313 ' ', 314 ' ' of second chamber and 315 ' ' of third chamber, two refrigerant inlet pipes 1 are respectively arranged at first layer heat exchanger fin
The 315 ' ' of 313 ' ' of first chamber and third chamber at 3 both ends of lower header, the first chamber of the lower header 3 of first layer heat exchanger fin
313 ' ' and 315 ' ' of third chamber are connected to by micro-channel flat 7 with the upper header 4 of first layer heat exchanger fin.First layer heat exchanger fin
Lower header among 314 ' ' of second chamber be connected to the lower header 5 of second layer heat exchanger fin by through-hole.It is changed in first layer
The centre of backing is provided with a connecting tube 9, and the upper header 4 into first layer heat exchanger fin is run through in one end of the connecting tube 9
Cavity, the other end run through the 314 ' ' of second chamber among the lower header 3 into first layer heat exchanger fin, under first layer heat exchanger fin
The 314 ' ' of second chamber of header 3 is connected to the lower header 5 of second layer heat exchanger fin, such connecting tube 9 and first layer heat exchanger fin
Lower header 3 among 314 ' ' of second chamber collectively constitute upper header 4 and the second layer heat exchange of connection first layer heat exchanger fin
The interface channel of the lower header 5 of piece.When work, refrigerant respectively enters first layer heat exchange by two refrigerant inlet pipes 1
The 315 ' ' of 313 ' ' of first chamber and third chamber of the lower header 3 of piece, then refrigerant passes through micro-channel flat 7 from first layer
The 313 ' ' of first chamber and 315 ' ' of third chamber of the lower header 3 of heat exchanger fin are moved from bottom to top under first layer heat exchanger fin
Header 3 enters the upper header 4 of first layer heat exchanger fin, and then refrigerant passes through the upper header run through into first layer heat exchanger fin
4 connecting tube 9 flows into the 314 ' ' of second chamber among the lower header of first layer heat exchanger fin, through 314 ' ' of second chamber by logical
Hole enters the lower header 5 of second layer heat exchanger fin, and then refrigerant is again from the lower header 5 of second layer heat exchanger fin by microchannel
Flat tube moves upwards the upper header 6 into second layer heat exchanger fin, finally flows out through refrigerant outlet pipe 2.
It please refers to shown in Figure 24 and Figure 25, the structural schematic diagram of the eighth embodiment of the present invention is shown, wherein identical
Element uses label identical with aforementioned other embodiments.In this embodiment, it is set among the upper header 6 of second layer heat exchanger fin
Set two 611 ' ' of partition, 612 ' ' by the upper header 6 of second layer heat exchanger fin be separated into mutual disconnected 613 ' ' of first chamber,
615 ' ' of 614 ' ' of second chamber and third chamber, two refrigerant outlet pipes 2 are respectively arranged at the upper afflux of second layer heat exchanger fin
The 615 ' ' of 613 ' ' of first chamber and third chamber at 6 both ends of pipe, the 613 ' ' of first chamber of the upper header of second layer heat exchanger fin and
615 ' ' of third chamber is connected to by micro-channel flat 7 with the lower header 5 of second layer heat exchanger fin, the upper collection of second layer heat exchanger fin
614 ' ' of second chamber among flow tube 6 is connected to the upper header 4 of first layer heat exchanger fin by through-hole (not shown).Second
A connecting tube 9 is arranged in the intermediate of layer heat exchanger fin, and one end of the connecting tube is run through in the upper header 6 of second layer heat exchanger fin
Between 614 ' ' of second chamber, the other end runs through the lower header 5 into second layer heat exchanger fin, such connecting tube 9 and second layer heat exchange
614 ' ' of second chamber among the upper header of piece collectively forms the upper header 4 of connection first layer heat exchanger fin and the second layer changes
The interface channel of the lower header 5 of backing.When work, refrigerant enters under first layer heat exchanger fin by refrigerant inlet pipe 1
Header 3, then refrigerant, which is moved from bottom to top by micro-channel flat 7 from the lower header 3 of first layer heat exchanger fin, enters the
The upper header 4 of one layer of heat exchanger fin, refrigerant enters the second layer heat exchange being connected to the upper header 4 of first layer heat exchanger fin later
614 ' ' of second chamber among the upper header 6 of piece, refrigerant is using connecting tube 9 from the upper header 6 of second layer heat exchanger fin
Intermediate 614 ' ' of second chamber enters the lower header 5 of second layer heat exchanger fin, then refrigerant using micro-channel flat 7 from
Under move upwards 615 ' ' of 613 ' ' of first chamber and third chamber into 6 both ends of upper header of second layer heat exchanger fin, finally
It is flowed out from refrigerant outlet pipe 2.
Heat exchanger of the invention, because refrigerant is to flow from bottom to top in the micro-channel flat of each layer heat exchanger fin
, because of gaseous refrigerant lighter in weight, micro-channel flat upper end quickly and evenly can be flowed to from micro-channel flat lower end,
And the refrigerant of liquid can first be accumulated in header, then enter back into micro-channel flat channel, into micro-channel flat
In liquid refrigerant can be squeezed by gaseous refrigerant and more be posted by the cavity wall of micro-channel flat, be more advantageous to flat with microchannel
Air outside pipe carries out heat exchange, can effectively improve the heat exchange property of heat exchanger.
It should be understood that above embodiments are merely to illustrate the present invention and not limit technical side described in the invention
Case, although this specification is referring to the above embodiments, the present invention has been described in detail, the common skill of this field
Art personnel should be appreciated that person of ordinary skill in the field still can modify or equivalently replace the present invention, and
All do not depart from the technical solution and its improvement of the spirit and scope of the present invention, should all cover in scope of the presently claimed invention
It is interior.
Claims (11)
1. a kind of heat exchanger comprising two layers of heat exchanger fin, every layer of heat exchanger fin include lower header, upper header, next part in connection
Multiple micro-channel flats of flow tube and the fin being set between micro-channel flat, in the lower header of first layer heat exchanger fin
It is provided with refrigerant communication port, the upper header of second layer heat exchanger fin is provided with refrigerant communication port, in first layer heat exchanger fin
Upper header and second layer heat exchanger fin lower header between be provided with interface channel.
2. heat exchanger as described in claim 1, it is characterised in that: the circulation passage of the interface channel is greater than the microchannel
The circulation passage of flat tube.
3. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel is a connecting tube for being set to every layer of heat exchanger fin one end, and one end of the connecting tube exchanges heat through first layer
The end cap of the upper header of piece is connected to the upper header of first layer heat exchanger fin, and the other end of the connecting tube is changed through the second layer
The end cap of the lower header of backing is connected to the lower header of second layer heat exchanger fin.
4. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel is two connecting tubes for being set to every layer of heat exchanger fin both ends, and each connecting tube extends through first layer heat exchanger fin
The end cap of upper header be connected to the upper header of first layer heat exchanger fin, the other end extends through the next part of second layer heat exchanger fin
The end cap of flow tube is connected to the lower header of second layer heat exchanger fin.
5. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel is set to the side on first layer heat exchanger fin, and wherein the lower header of first layer heat exchanger fin is provided with partition and incites somebody to action
Lower header is separated into first chamber and second chamber, and refrigerant inlet pipe is set to first chamber, and first chamber passes through micro- logical
Road flat tube is connected to upper header, and second chamber is connected to the lower header of second layer heat exchanger fin, and the interface channel includes connecting
The second chamber of adapter tube and the first layer heat exchanger fin, wherein the upper header of one end of the connecting tube and first layer heat exchanger fin
The second chamber of the lower header of connection, the other end and first layer heat exchanger fin penetrates through.
6. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel is the two sides for being respectively arranged at first layer heat exchanger fin, the lower header setting of first layer heat exchanger fin there are two every
Plate by lower header be separated into both ends first chamber and third chamber and centre second chamber, wherein the second chamber
It is connected to by micro-channel flat with upper header, the first chamber at both ends and the lower header of third chamber and second layer heat exchanger fin
Connection, the interface channel includes the first chamber and third chamber of two connecting tubes and the first layer heat exchanger fin, wherein one
A connecting tube one end is connected to the upper header of first layer heat exchanger fin, the first chamber of the other end and first layer heat exchanger fin lower header
Room perforation, another connecting tube one end are connected to the upper header of first layer heat exchanger fin, the other end and first layer heat exchanger fin next part
The third chamber of flow tube penetrates through.
7. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel is the side for being set to second layer heat exchanger fin, and the upper header of second layer heat exchanger fin is provided with partition for second
The upper header of layer heat exchanger fin is separated into first chamber and second chamber, and refrigerant outlet pipe is set to the first chamber, institute
It states first chamber to be connected to the lower header of second layer heat exchanger fin by micro-channel flat, the upper afflux of the second layer heat exchanger fin
The second chamber of pipe is connected to the upper header of first layer heat exchanger fin, and the interface channel includes connecting tube and second layer heat exchanger fin
The second chamber of the second chamber of upper header, the connecting tube one end and second layer heat exchanger fin penetrates through, the other end with
The lower header of second layer heat exchanger fin is connected to.
8. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel is the two sides for being set to second layer heat exchanger fin, and there are two the upper header settings of second layer heat exchanger fin, and partition will
The upper header of second layer heat exchanger fin be separated into both ends first chamber and third chamber and centre second chamber, refrigerant
Outlet is set to the second chamber, and the lower header of the second chamber and second layer heat exchanger fin passes through micro-channel flat company
Logical, the first chamber and third chamber of the upper header of the second layer heat exchanger fin and the upper header of first layer heat exchanger fin connect
Logical, the interface channel includes the first chamber and third chamber of header on two connecting tubes and second layer heat exchanger fin, wherein
One end of one connecting tube and the first chamber of second layer heat exchanger fin penetrate through, and the lower header of the other end and second layer heat exchanger fin connects
Logical, one end of another connecting tube and the third chamber of second layer heat exchanger fin penetrate through, the next part of the other end and second layer heat exchanger fin
Flow tube connection.
9. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise cylindrical tube closed at both ends,
The interface channel includes connecting tube, and the connecting tube is to be set to the centre of first layer heat exchanger fin, the first layer heat exchanger fin
Lower header setting there are two partitions, and the lower header of first layer heat exchanger fin is separated into the first chamber and third chamber at both ends
The second chamber of room and centre, is respectively set in the first chamber and third chamber of the lower header of the first layer heat exchanger fin
Refrigerant inlet pipe, the first chamber and third chamber of the lower header of first layer heat exchanger fin pass through micro-channel flat and first layer
The upper header of heat exchanger fin is connected to, the second chamber of the lower header of the first layer heat exchanger fin and the next part of second layer heat exchanger fin
Flow tube connection, the interface channel includes the second chamber of the connecting tube Yu the first layer heat exchanger fin, the connecting tube
One end is connected to the upper header of first layer heat exchanger fin, the second chamber of the lower header of the other end and the first layer heat exchanger fin
Perforation.
10. heat exchanger as claimed in claim 1 or 2, it is characterised in that: the header is lengthwise tubular closed at both ends
Pipe, the interface channel is the centre for being set to second layer heat exchanger fin, and the upper header of the second layer heat exchanger fin is provided with two
A partition by the upper header of second layer heat exchanger fin be separated into both ends first chamber and third chamber and centre the second chamber
Refrigerant outlet pipe is respectively set in the first chamber and third chamber of the upper header of the second layer heat exchanger fin in room, described
The first chamber and third chamber of the upper header of second layer heat exchanger fin pass through micro-channel flat and the second layer heat exchanger fin
Lower header connection, the second chamber of the upper header of the second layer heat exchanger fin and the upper header of first layer heat exchanger fin connect
Logical, the interface channel includes the second chamber of the upper header of connecting tube and second layer heat exchanger fin, one end of the connecting tube
It is penetrated through with the second chamber of the upper header of the second layer heat exchanger fin, the lower header of the other end and the second layer heat exchanger fin
Perforation.
11. a kind of heat-exchange system comprising such as heat exchanger of any of claims 1-10, refrigerant is changed from described
The refrigerant communication port of the lower header of the first layer heat exchanger fin of hot device flows into the lower header of first layer heat exchanger fin, changes from described
The lower header of the first layer heat exchanger fin of hot device flows into the upper header of the first layer heat exchanger fin by the micro-channel flat,
The lower header for flowing into the second layer heat exchanger fin through the interface channel from the upper header of the first layer heat exchanger fin, from institute
It states the lower header of second layer heat exchanger fin and through the micro-channel flat flows into the upper header of the second layer heat exchanger fin and through
The refrigerant communication port of the upper header of two layers of heat exchanger fin flows out.
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| CN201410068228.4A CN104879954B (en) | 2014-02-27 | 2014-02-27 | Heat-exchange system and its heat exchanger |
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| CN106839526B (en) * | 2017-01-23 | 2020-02-21 | 郑州科林车用空调有限公司 | Double-piece integrated parallel flow heat exchanger for bus air conditioner |
| CN108072286A (en) * | 2017-12-06 | 2018-05-25 | 广东美的制冷设备有限公司 | Radiation recuperator and air-conditioning system |
| CN109764697A (en) * | 2019-01-22 | 2019-05-17 | 北京建筑大学 | Micro-channel heat exchanger |
| CN110567312A (en) * | 2019-09-10 | 2019-12-13 | 江苏科菱库精工科技有限公司 | Dual-system micro-channel collecting pipe and using method thereof |
| CN114636261A (en) * | 2020-12-16 | 2022-06-17 | 浙江盾安人工环境股份有限公司 | Liquid separation device and heat exchanger with same |
| CN113188273A (en) * | 2021-05-24 | 2021-07-30 | 浙江酷灵信息技术有限公司 | Evaporator with a heat exchanger |
| CN113790476A (en) * | 2021-09-01 | 2021-12-14 | 中山富雪泰制冷设备有限公司 | Efficient energy-saving emission-reducing condensing unit and air conditioner |
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| CN1704699A (en) * | 2004-06-02 | 2005-12-07 | 陈苏红 | Automobile air-conditioner multilayer parallel cascade type evaporator |
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