CN209434175U - Fractal micro-channel heat exchanger - Google Patents
Fractal micro-channel heat exchanger Download PDFInfo
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- CN209434175U CN209434175U CN201920344132.4U CN201920344132U CN209434175U CN 209434175 U CN209434175 U CN 209434175U CN 201920344132 U CN201920344132 U CN 201920344132U CN 209434175 U CN209434175 U CN 209434175U
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Abstract
The utility model relates to a kind of fractal micro-channel heat exchangers, and N is offered on substrate0Group sector divides shape unit channel, N0Group sector divide shape unit channel about the center of substrate circumferentially array is uniformly distributed, N0Group sector divides shape unit channel radial arrangement on substrate, N0Group sector divides the outlet end of shape unit channel to be connected to liquid collecting annular groove, and fluid enters after point shape unit channel from fluid inlet enters liquid collecting annular groove finally from fluid outlet outflow, N0Group sector divides shape unit channel to cover entire substrate, and fluid can be flowed to all directions in heat exchanger, and the heat that flowing while is taken away in heat exchanger avoids localized hyperthermia to realize the uniform heat exchange in heat exchanger, extends the service life of electronic chip；More bifurcated pipeline improves the heat exchange efficiency of the utility model heat exchanger；Bypass passage in heat-sink unit can any solid matter, heat exchange efficiency is substantially improved.
Description
Technical field
The present invention relates to technical field of heat exchange equipment, more particularly, to a kind of fractal micro-channel heat exchanger.
Background technique
In recent years, with the continuous development of super large-scale integration, chip specific volume power is increasing, chip
Radiating requirements increase；Since the interior design of chip is accurate, any hot-spot Qu Douhui substantially reduces the chip service life,
Heat exchanger heat dissipation uniformity coefficient requires also to increase accordingly.
The most common heat dissipation equipment in chip cooling field first is that using liquid cool down micro-channel heat exchanger.Microchannel is changed
Hot device is made of a large amount of straight microchannels, and the width of microchannel changes in tens to thousands of microns.It increases in narrow channel
Add the contact area of fluid and heat exchanger；Simultaneously but also the increased friction of fluid and wall surface, the pressure drop of heat exchanger also increase therewith
Greatly.So raising heat exchanging efficiency is one of the design direction of heat exchanger in the case where guaranteeing that pressure drop will not greatly improve.
Fractal structure is a kind of design effectively that exchange capability of heat is promoted when guaranteeing pressure drop steady growth.Divide shape micro- logical
The mentality of designing of road heat exchanger is that major diameter channel is divided into time of multiple minor diameters with certain Branch Angle at each level
Grade channel.Since the coefficient of heat transfer in laminar flow in channel is inversely proportional to caliber, so that the coefficient of heat transfer of smaller diameter passage is big
In major diameter channel, so that fractal micro-channel heat exchanger has higher change under conditions of same heat exchange area and heat transfer temperature difference
Heat.Existing fractal micro-channel heat exchanger mainly includes two classes: right angle heat exchanger and diamond shape heat exchanger.
The first kind is right angle fractal micro-channel heat exchanger, and secondary channel is rectangular in shape with higher level channel；Such as Zheng Ping
(Y.Chen,P.Cheng,An experimental investigation on the thermal efficiency of
fractal tree-like microchannel nets,Int.J.Heat Mass Transfer 32(2005)931–938)
The fractal micro-channel heat exchanger (see shown in attached drawing 1) of proposition, every grade of channel is one-to-two form, and secondary channel is in higher level channel
Square.Since refrigerant fluid is by that can encounter biggish flow resistance when right-angled bend, right angle divides shape micro- logical
The pressure drop of fluid is larger in road heat exchanger, and heat exchange efficiency decreases.
Another kind of is diamond shape fractal micro-channel heat exchanger, and primary and secondary channel has symmetrical structure, and main channel is divided into multilevel
Main channel is returned to behind channel.As what a kind of fractal micro-channel heat exchanger of patent (application number: 201711046682.X) proposed changes
Hot device (see attached drawing 2), main channel are continuously divided into two-stage subchannel, are then connected again with two-stage subchannel, return to main channel, are formed
Symmetrical structure.Cause main channel excessive, heat transfer effect is uneven.
Both the above heat exchanger cannot make microchannel solid matter in entire substrate because of specific fractal structure.This also illustrates
There are also certain rooms for promotion for the heat exchange efficiency of point needle recuperator, so for right angle pressure drop in existing fractal micro-channel heat exchanger
Greatly, exchange heat non-uniform problem, needs to invent new fractal micro-channel heat exchanger, while so that it is guaranteed that heat exchange is uniform, to the greatest extent may be used
Exchange capability of heat can be improved.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome in existing fractal micro-channel heat exchanger right angle pressure drop it is big,
Exchange heat non-uniform problem, provides a kind of fractal micro-channel heat exchanger.
The technical solution adopted by the present invention to solve the technical problems is: a kind of fractal micro-channel heat exchanger, including substrate
And upper cover plate, the upper cover plate lid are located on substrate, and are cooperated with base plate seals, the center position of the upper cover plate offers
Fluid inlet offers N on the substrate0Group sector divides shape unit channel, N0Group sector divides shape unit channel about in substrate
Circumferentially array is uniformly distributed for the heart, N0Group sector divides the input end of shape unit channel to be interconnected, and is connected to fluid inlet, described
Liquid collecting annular groove is offered on substrate, the liquid collecting annular groove surrounds N0Group sector divides shape unit channel, N0Group sector divides shape unit channel
Outlet end be connected to liquid collecting annular groove, fluid outlet is offered on the substrate, the fluid outlet is connected to liquid collecting annular groove.
Fractal micro-channel heat exchanger of the invention, offers N on substrate0Group sector divides shape unit channel, N0Fan-shaped point of group
Circumferentially array is uniformly distributed about the center of substrate for shape unit channel, N0Group sector divides shape unit channel radial cloth on substrate
It sets, N0Group sector divides the outlet end of shape unit channel to be connected to liquid collecting annular groove, and fluid enters from fluid inlet through a point shape unit
Enter liquid collecting annular groove behind channel finally to flow out from fluid outlet, N0Group sector divides shape unit channel to cover entire substrate, and fluid can
All directions flowing into heat exchanger, flowing while, takes away the heat in heat exchanger, to realize uniform in heat exchanger
Heat exchange, avoids localized hyperthermia, extends the service life of electronic chip.
Right angle divides needle recuperator, and secondary channel is rectangular in shape with higher level channel, since refrigerant fluid is by right angle
Biggish flow resistance can be encountered when turning, thus in existing point of needle recuperator fluid pressure drop it is larger, in order to reduce a point shape
The pressure drop of fluid in heat exchanger, every group of sector point shape unit channel include a total bypass duct, total bypass duct connection stream
Body entrance sum aggregate pendular ring slot, the side of total bypass duct offers N1Bifurcated pipeline, N1Bifurcated pipeline from fluid inlet to
Liquid collecting annular groove is arranged successively, N1Bifurcated pipeline is parallel and is arranged at equal intervals, the bypass passage in heat-sink unit can any solid matter,
Heat exchange efficiency, N is substantially improved1One end of bifurcated pipeline is connected to total bypass duct, and the other end is connected to liquid collecting annular groove, point
Angle of the breeches pipe road between the side and total bypass duct of liquid collecting annular groove is acute angle theta, is used in sector point shape unit channel
For acute angle as bifurcation angle, the flow resistance that fluid encounters when by acute angle turning is smaller, reduces fluid in channel
Flow resistance；And bifurcated pipeline covers entire substrate, more bifurcated pipeline improves the heat exchange efficiency of present invention heat exchanger.
Specifically, the depth of total bypass duct and the depth of several bifurcated pipelines are equal, several bifurcated pipelines
Width it is equal, the width of total bypass duct is D0, the width of bifurcated pipeline is D1, D1=D0β, β expression divide shape width ratio,
When fluid is laminar flow: β=N1 -3/2, when fluid is turbulent flow: β=N1 -7/6.According to Murray principle:Its
Middle N1 is branch sum, and i is branch series；When channel fluid is laminar flow, Δ=3, β=N1 -Δ/2, Δ=3 are substituted into β=N1 -Δ/2Obtain β=N1 -3/2；When channel fluid is turbulent flow, Δ=7/3, β=N1 -Δ/2, Δ=7/3 is substituted into β=N1 -Δ/2Obtain β
=N1 -7/6。
Every group of sector divides the total length of total bypass duct and several bifurcated pipelines in shape unit channel to be Ltot, total bypass duct
Length is R, and the distance between adjacent two bifurcated pipelines are J, from i-th bifurcated pipeline of fluid inlet number and first bifurcated pipe
The distance between road is Ji, in which:
Angle of the bifurcated pipeline between the side and total bypass duct of liquid collecting annular groove is acute angle theta, adjacent two bifurcated pipes
The distance between road is J, is J from the distance between i-th bifurcated pipeline of fluid inlet number and first bifurcated pipelinei, N0It is fan
Shape divides the group number of shape unit channel, all has a total bypass duct in every group of sector point shape unit channel, in a word the number of road pipe
For N0, N1It is the quantity of bifurcated pipeline, the quantity of bifurcated pipeline cannot obtain following mathematical relationship according to geometrical relationship less than 1
Formula:
N1=Rsin θ/J. (1-2)
N0=360/ θ (1-3)
(1-1) formula, (1-3) formula are substituted into (1-4) formula, following relational expression is obtained after arrangement:
Specifically, due to a fan-shaped point shape unit channel be it is fan-shaped, several sectors constitute circle, which divides shape list
First channel is higher using the coverage rate on circular substrate, and the substrate is identical with the shapes and sizes of upper cover plate, described
Substrate and upper cover plate are circle.
Specifically, in order to accelerate the heat exchange efficiency of heat exchanger, the material of the substrate is metal material, the heat of metal material
Transmission efficiency is higher.
The beneficial effects of the present invention are: fractal micro-channel heat exchanger of the invention, offers N on substrate0Fan-shaped point of group
Shape unit channel, N0Group sector divide shape unit channel about the center of substrate circumferentially array is uniformly distributed, N0Group sector divides shape unit logical
Road radial arrangement on substrate, N0Group sector divides the outlet end of shape unit channel to be connected to liquid collecting annular groove, and fluid is from fluid
Entrance, which enters after point shape unit channel, enters liquid collecting annular groove finally from fluid outlet outflow, N0Group sector point shape unit channel covers
Entire substrate is covered, fluid can be flowed to all directions in heat exchanger, and flowing while takes away the heat in heat exchanger, thus real
Uniform heat exchange in existing heat exchanger, avoids localized hyperthermia, extends the service life of electronic chip；Divide shape unit channel in sector
Middle to use acute angle as bifurcation angle, the flow resistance that fluid encounters when by acute angle turning is smaller, reduces fluid logical
Flow resistance in road；And bifurcated pipeline covers entire substrate, more bifurcated pipeline improves the heat exchange of present invention heat exchanger
Efficiency；Bypass passage in heat-sink unit can any solid matter, heat exchange efficiency is substantially improved.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the top view that right angle divides needle recuperator substrate；
Fig. 2 is the top view of diamond shape heat exchanger substrate；
Fig. 3 is schematic three dimensional views of the invention；
Fig. 4 is the schematic three dimensional views of substrate in the present invention；
Fig. 5 is the top view of substrate in the present invention；
Fig. 6 is the two-dimensional representation of fan-shaped point shape unit channel in the present invention；
Fig. 7 is angle theta of the bifurcated pipeline between the side and total bypass duct of liquid collecting annular groove in the embodiment of the present invention 1
Divide the relational graph in shape unit channel between total bypass duct and the total length L tot of several bifurcated pipelines with every group of sector；
Fig. 8 is angle theta of the bifurcated pipeline between the side and total bypass duct of liquid collecting annular groove in the embodiment of the present invention 2
Divide the relational graph in shape unit channel between total bypass duct and the total length L tot of several bifurcated pipelines with every group of sector；
Fig. 9 is angle theta of the bifurcated pipeline between the side and total bypass duct of liquid collecting annular groove in the embodiment of the present invention 3
Divide the relational graph in shape unit channel between total bypass duct and the total length L tot of several bifurcated pipelines with every group of sector.
In figure: 1. substrates, 1-1. sector divide shape unit channel, the total bypass duct of 1-1-1., 1-1-2. bifurcated pipeline, 1-2. collection
Pendular ring slot, 1-3. fluid outlet, 2. upper cover plates, 2-1. fluid inlet.
Specific embodiment
Presently in connection with attached drawing, the present invention will be further described in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of fractal micro-channel heat exchanger as shown in Figure 3 and Figure 4, including substrate 1 and upper cover plate 2, the lid of upper cover plate 2 are located at
It on substrate 1, and seals and cooperates with substrate 1, substrate 1 is identical with the shapes and sizes of upper cover plate 2, and substrate 1 and upper cover plate 2 are equal
For circle, the material of substrate 1 is metal material.The center position of upper cover plate 2 offers fluid inlet 2-1, opens on substrate 1
Equipped with N0Group sector divides shape unit channel 1-1, N0Group sector divides center circumferentially array of the shape unit channel 1-1 about substrate 1
It is uniformly distributed, N0Group sector divides the input end of shape unit channel 1-1 to be interconnected, and is connected to fluid inlet 2-1, opens on substrate 1
N is surrounded equipped with liquid collecting annular groove 1-2, liquid collecting annular groove 1-20Group sector divides shape unit channel 1-1, N0Group sector divides shape unit channel 1-1
Outlet end be connected to liquid collecting annular groove 1-2, fluid outlet 1-3, fluid outlet 1-3 and liquid collecting annular groove 1-2 are offered on substrate 1
Connection.
Fractal micro-channel heat exchanger of the invention, offers N on substrate 10Group sector divides shape unit channel 1-1, N0Group
Sector divide shape unit channel 1-1 about the center of substrate 1 circumferentially array is uniformly distributed, N0Group sector divides shape unit channel 1-1 in base
Radial arrangement on plate 1, N0Group sector divides the outlet end of shape unit channel 1-1 to be connected to liquid collecting annular groove 1-2, and fluid is from fluid
Entrance 2-1, which enters after point shape unit channel, enters liquid collecting annular groove 1-2 finally from fluid outlet 1-3 outflow, N0Group sector divides shape
Unit channel 1-1 covers entire substrate 1, and fluid can be flowed to all directions in heat exchanger, and flowing while takes away heat exchanger
Interior heat avoids localized hyperthermia to realize the uniform heat exchange in heat exchanger, extends the service life of electronic chip.
Right angle divides needle recuperator, and secondary channel is rectangular in shape with higher level channel, since refrigerant fluid is by right angle
Biggish flow resistance can be encountered when turning, thus in existing point of needle recuperator fluid pressure drop it is larger, in order to reduce a point shape
The pressure drop of fluid in heat exchanger, every group of sector point shape unit channel 1-1 include total a bypass duct 1-1-1, total bypass duct 1-
1-1 is connected to fluid inlet 2-1 sum aggregate pendular ring slot 1-2, and the side of total bypass duct 1-1-1 offers N1Bifurcated pipeline 1-1-2, N1
Bifurcated pipeline 1-1-2 is arranged successively from fluid inlet 2-1 to liquid collecting annular groove 1-2, as shown in Figure 5 and Figure 6, N1Bifurcated pipeline
1-1-2 is parallel and is arranged at equal intervals, the bypass passage in heat-sink unit can any solid matter, heat exchange efficiency, N is substantially improved1Item point
One end of breeches pipe road 1-1-2 is connected to total bypass duct 1-1-1, and the other end is connected to liquid collecting annular groove 1-2, bifurcated pipeline 1-1-
2 angle between the side and total bypass duct 1-1-1 of liquid collecting annular groove 1-2 is acute angle theta, divides shape unit channel 1-1 in sector
Middle to use acute angle as bifurcation angle, the flow resistance that fluid encounters when by acute angle turning is smaller, reduces fluid logical
Flow resistance in road；And bifurcated pipeline 1-1-2 covers entire substrate 1, more bifurcated pipeline 1-1-2 improves the present invention and changes
The heat exchange efficiency of hot device.
The depth of total bypass duct 1-1-1 and the depth of several bifurcated pipeline 1-1-2 are equal, several bifurcated pipeline 1-1-2
Width it is equal, the width of total bypass duct is D0, the width of bifurcated pipeline 1-1-2 is D1, D1=D0β, β expression divide shape width ratio,
When fluid is laminar flow: β=N1 -3/2, when fluid is turbulent flow: β=N1 -7/6.According to Murray principle:Its
Middle N1 is branch sum, and i is branch series；When channel fluid is laminar flow, Δ=3, β=N1 -Δ/2, Δ=3 are substituted into β=N1 -Δ/2Obtain β=N1 -3/2；When channel fluid is turbulent flow, Δ=7/3, β=N1 -Δ/2, Δ=7/3 is substituted into β=N1 -Δ/2Obtain β
=N1 -7/6。
The total length of total bypass duct 1-1-1 and several bifurcated pipeline 1-1-2 is in every group of sector point shape unit channel 1-1
The length of Ltot, total bypass duct 1-1-1 are R, and the distance between adjacent two bifurcated pipelines 1-1-2 is J, from fluid inlet 2-1
The distance between number i-th bifurcated pipeline 1-1-2 and first bifurcated pipeline 1-1-2 are Ji, in which:
Angle of the bifurcated pipeline 1-1-2 between the side and total bypass duct 1-1-1 of liquid collecting annular groove 1-2 is acute angle theta, phase
The distance between two bifurcated pipeline 1-1-2 of neighbour are J, from i-th bifurcated pipeline 1-1-2 of fluid inlet 2-1 number and the first point
The distance between breeches pipe road 1-1-2 is Ji, N0It is the group number of sector point shape unit channel 1-1, every group of sector divides shape unit channel
A total bypass duct 1-1-1 is all had in 1-1, the number of road pipe is N in a word0, N1It is the quantity of bifurcated pipeline 1-1-2, bifurcated pipe
The quantity of road 1-1-2 cannot obtain following relationship according to geometrical relationship less than 1:
N1=Rsin θ/J. (1-2)
N0=360/ θ (1-3)
(1-1) formula, (1-3) formula are substituted into (1-4) formula, following relational expression is obtained after arrangement:
Embodiment 1:
For the angular range of acute angle theta between (0,90), round heat exchanger substrate 1 has specification, and R is set as
10mm, J are set as 0.5mm, calculate θ between 0 ° to 90 ° after any value by above-mentioned formula, every group of sector divides shape unit
The total length change curve of total bypass duct 1-1-1 and several bifurcated pipeline 1-1-2 in the 1-1 of channel；As seen from Figure 7, θ exists
When between 60 ° to 90 °, every group of sector divides that total bypass duct 1-1-1's and several bifurcated pipeline 1-1-2 in shape unit channel 1-1 is total
Length is longer, and the heat exchange efficiency of heat exchanger is preferable, and when sector divides shape unit channel 1-1 to have 5 groups, every group of sector divides shape unit logical
Angle of the bifurcated pipeline 1-1-2 between the side and total bypass duct 1-1-1 of liquid collecting annular groove 1-2 is 75 °, every group in road 1-1
Sector divides 1-1-2 number of bifurcated pipeline in shape unit channel 1-1 when being 19, and every group of sector is divided in shape unit channel 1-1 total
The total length longest of bypass duct 1-1-1 and several bifurcated pipeline 1-1-2, the heat exchange efficiency highest of heat exchanger.
Embodiment 2:
R is set as 15mm, J is set as 0.5mm, calculates θ any value between 0 ° to 90 ° by above-mentioned formula
Afterwards, every group of sector divides the total length change curve of total bypass duct 1-1-1 and several bifurcated pipeline 1-1-2 in shape unit channel 1-1
Figure；As seen from Figure 8, when θ is between 60 ° to 90 °, if every group of sector divide in shape unit channel 1-1 total bypass duct 1-1-1 and
The total length of dry bifurcated pipeline 1-1-2 is longer, and the heat exchange efficiency of heat exchanger is preferable, when sector divides shape unit channel 1-1 to have 5
Group, every group of sector divide side and total bypass duct 1-1-1 of the bifurcated pipeline 1-1-2 close to liquid collecting annular groove 1-2 in shape unit channel 1-1
Between angle be 75 °, every group of sector divides 1-1-2 number of bifurcated pipeline in shape unit channel 1-1 when being 19, and every group is fan-shaped
Divide the total length longest of total bypass duct 1-1-1 and several bifurcated pipeline 1-1-2 in shape unit channel 1-1, the heat exchange effect of heat exchanger
Rate highest.
Embodiment 3:
R is set as 10mm, J is set as 0.4mm, calculates θ any value between 0 ° to 90 ° by above-mentioned formula
Afterwards, every group of sector divides the total length change curve of total bypass duct 1-1-1 and several bifurcated pipeline 1-1-2 in shape unit channel 1-1
Figure；As seen from Figure 9, when θ is between 60 ° to 90 °, if every group of sector divide in shape unit channel 1-1 total bypass duct 1-1-1 and
The total length of dry bifurcated pipeline 1-1-2 is longer, and the heat exchange efficiency of heat exchanger is preferable, when sector divides shape unit channel 1-1 to have 5
Group, every group of sector divide side and total bypass duct 1-1-1 of the bifurcated pipeline 1-1-2 close to liquid collecting annular groove 1-2 in shape unit channel 1-1
Between angle be 75 °, every group of sector divides 1-1-2 number of bifurcated pipeline in shape unit channel 1-1 when being 19, and every group is fan-shaped
Divide the total length longest of total bypass duct 1-1-1 and several bifurcated pipeline 1-1-2 in shape unit channel 1-1, the heat exchange effect of heat exchanger
Rate highest.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (6)
1. a kind of fractal micro-channel heat exchanger, including substrate (1) and upper cover plate (2), upper cover plate (2) lid is located at substrate (1)
On, and seal and cooperate with substrate (1), the center position of the upper cover plate (2) offers fluid inlet (2-1), and feature exists
In: N is offered on the substrate (1)0Group sector divides shape unit channel (1-1), N0Group sector divide shape unit channel (1-1) about
Circumferentially array is uniformly distributed at the center of substrate (1), N0Group sector divide shape unit channel (1-1) input end be interconnected, and with
Fluid inlet (2-1) is connected to, and is offered liquid collecting annular groove (1-2) on the substrate (1), and the liquid collecting annular groove (1-2) surrounds N0Group
Sector divides shape unit channel (1-1), N0Group sector divides the outlet end of shape unit channel (1-1) to be connected to liquid collecting annular groove (1-2),
It is offered fluid outlet (1-3) on the substrate (1), the fluid outlet (1-3) is connected to liquid collecting annular groove (1-2).
2. fractal micro-channel heat exchanger as described in claim 1, it is characterised in that: every group of sector divides shape unit channel (1-1)
It include a total bypass duct (1-1-1), total bypass duct (1-1-1) is connected to fluid inlet (2-1) sum aggregate pendular ring slot (1-
2), the side of total bypass duct (1-1-1) offers N1Bifurcated pipeline (1-1-2), N1Bifurcated pipeline (1-1-2) is from stream
Body entrance (2-1) is arranged successively to liquid collecting annular groove (1-2), N1Bifurcated pipeline (1-1-2) is parallel and is arranged at equal intervals, N1Item point
The one end on breeches pipe road (1-1-2) is connected to total bypass duct (1-1-1), and the other end is connected to liquid collecting annular groove (1-2), bifurcated pipe
Angle of the road (1-1-2) between the side and total bypass duct (1-1-1) of liquid collecting annular groove (1-2) is acute angle theta.
3. fractal micro-channel heat exchanger as claimed in claim 2, it is characterised in that: the depth of total bypass duct (1-1-1)
It is equal with the depth of several bifurcated pipelines (1-1-2), the width of several bifurcated pipelines (1-1-2) is equal, the general branch
The width that (1-1-1) is managed on road is D0, the width of bifurcated pipeline (1-1-2) is D1, D1=D0β, β expression divide shape width ratio, work as fluid
When for laminar flow: β=N1 -3/2, when fluid is turbulent flow: β=N1 -7/6。
4. fractal micro-channel heat exchanger as claimed in claim 3, it is characterised in that: every group of sector divides shape unit channel (1-1)
In the total length of total bypass duct (1-1-1) and several bifurcated pipelines (1-1-2) be Ltot, the length of total bypass duct (1-1-1) is
R, the distance between adjacent two bifurcated pipelines (1-1-2) are J, from i-th bifurcated pipeline (1-1-2) of fluid inlet (2-1) number
The distance between first bifurcated pipeline (1-1-2) is Ji, in which:
5. fractal micro-channel heat exchanger as described in claim 1, it is characterised in that: the shape of the substrate (1) and upper cover plate (2)
Shape is identical with size, and the substrate (1) and upper cover plate (2) are circle.
6. fractal micro-channel heat exchanger as described in claim 1, it is characterised in that: the material of the substrate (1) is metal material
Material.
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| CN109801887A (en) * | 2019-03-19 | 2019-05-24 | 江苏唯益换热器有限公司 | Fractal micro-channel heat exchanger |
| CN109801887B (en) * | 2019-03-19 | 2023-10-31 | 江苏唯益换热器有限公司 | Fractal micro-channel heat exchanger |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |