CN209344066U - Bionical point of shape plate heat exchanger - Google Patents
Bionical point of shape plate heat exchanger Download PDFInfo
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- CN209344066U CN209344066U CN201920269739.0U CN201920269739U CN209344066U CN 209344066 U CN209344066 U CN 209344066U CN 201920269739 U CN201920269739 U CN 201920269739U CN 209344066 U CN209344066 U CN 209344066U
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Abstract
The utility model relates to a kind of bionical point of shape plate heat exchangers of the utility model, a point shape unit channel is offered on substrate, circumferentially array is uniformly distributed about the center of substrate for several points of shape unit channels, the outlet end of several points of shape unit channels is connected to liquid collecting annular groove, fluid enters after point shape unit channel from fluid inlet enters liquid collecting annular groove finally from fluid outlet outflow, several points of shape unit channels cover entire substrate, fluid can be flowed to all directions in heat exchanger, the heat in heat exchanger is taken away while flowing, to realize the uniform heat exchange in heat exchanger, avoid localized hyperthermia, extend the service life of electronic chip；Using acute angle as bifurcation angle in dividing shape unit channel, the flow resistance that fluid encounters when by acute angle turning is smaller, reduces flow resistance of the fluid in channel；And bifurcated pipeline covers entire substrate, more bifurcated pipeline improves the heat exchange efficiency of the utility model heat exchanger.
Description
Technical field
The present invention relates to technical field of heat exchange equipment, more particularly, to a kind of bionical point of shape plate heat exchanger.
Background technique
In electronic radiation field, heat exchanger is the capital equipment that radiating and cooling is carried out to electronic chip.With chip system
The promotion of journey technique, chip integration is higher and higher, specific volume power is increasing, and chip cooling demand also increases.
Since the interior design of chip is accurate, any hot-spot Qu Douhui substantially reduces the chip service life, this does not require nothing more than heat exchanger
There is very strong exchange capability of heat under same pressure drop, while heat exchanger being required to radiate as far as possible uniformly.
The mentality of designing of point needle recuperator be major diameter channel is divided into certain Branch Angle at each level it is multiple
The secondary channel of minor diameter.Since the coefficient of heat transfer in laminar flow in channel is inversely proportional to caliber, so that smaller diameter passage
The coefficient of heat transfer is greater than major diameter channel, so that it is higher to divide needle recuperator to have under conditions of same heat exchange area and heat transfer temperature difference
Heat exchange amount.
Existing point of needle recuperator is that a kind of right angle divides needle recuperator, 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) what is proposed divides needle recuperator (see shown in attached drawing 1), and every grade of channel is one-to-two form, secondary channel and higher level channel in straight
It is angular.Since refrigerant fluid is by that can encounter biggish flow resistance, existing point of needle recuperator when right-angled bend
The pressure drop of interior fluid is larger.
One kind is diamond shape heat exchanger, and primary and secondary channel has symmetrical structure, and main channel is returned to after being divided into multistage subchannel
Main channel.Such as the heat exchanger (see attached drawing 2) that a kind of bionical point of needle recuperator (application number: 201711046682.X) of patent proposes,
Main channel is continuously divided into two-stage subchannel, is then connected again with two-stage subchannel, returns to main channel, forms symmetrical structure.It causes
Main channel is excessive, and heat transfer effect is bad.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome the problems, such as that existing point of needle recuperator heat transfer effect is bad,
A kind of bionical point of shape plate heat exchanger is provided.
The technical solution adopted by the present invention to solve the technical problems is: a kind of bionical point of shape plate heat exchanger, including base
Plate and upper cover plate, the upper cover plate lid are located on substrate, and are cooperated with base plate seals, and the center position of the upper cover plate opens up
There is fluid inlet, a point shape unit channel is offered on the substrate, dividing the quantitative range of shape unit channel is 3-20 item, Ruo Gansuo
Stating point shape unit channel, circumferentially array is uniformly distributed about the center of substrate, and the input end of several point shape unit channels mutually interconnects
It is logical, and be connected to fluid inlet, liquid collecting annular groove is offered on the substrate, it is logical that the liquid collecting annular groove surrounds several points of shape units
Road, it is several it is described divide the outlet end of shape unit channel to be connected to liquid collecting annular groove, fluid outlet is offered on the substrate, it is described
Fluid outlet is connected to liquid collecting annular groove.
Bionical point of shape plate heat exchanger of the invention, offers a point shape unit channel on substrate, and several points of shape units are logical
About the center of substrate, circumferentially array is uniformly distributed in road, several points of shape unit channel radial arrangements on substrate, several point shapes
The outlet end of unit channel is connected to liquid collecting annular groove, and fluid enters from fluid inlet and enters liquid collecting ring after point shape unit channel
Slot is finally flowed out from fluid outlet, and several points of shape unit channels cover entire substrate, and fluid can be to all directions in heat exchanger
Flowing, the heat that flowing while is taken away in heat exchanger avoid localized hyperthermia to realize the uniform heat exchange in heat exchanger, prolong
The service life of electronic chip is grown.
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, described point of shape unit channel includes bye-pass, several grades of bye-passes along fluid inlet to collection pendular ring
Slot is sequentially communicated, the deep equality of several grades of bye-passes, and width is gradually reduced along fluid inlet to liquid collecting annular groove, adjacent two-stage branch
Bifurcated pipeline is offered at connection node between pipeline, two bifurcated pipelines are symmetrically set about the central axis of bye-pass
It sets, the angle between the bifurcated pipeline and the central axis of the lesser bye-pass of width is acute angle, the bifurcated pipeline and collection
The connection of pendular ring slot, the stream encountered when by acute angle turning using acute angle as bifurcation angle, fluid in dividing shape unit channel
Dynamic resistance is smaller, reduces flow resistance of the fluid in channel；And bifurcated pipeline covers entire substrate, more bifurcated pipeline
Improve the heat exchange efficiency of present invention heat exchanger.
Specifically, the bye-pass includes zero level bye-pass, level-one bye-pass and second level bye-pass, zero level bye-pass, one
Grade bye-pass and second level bye-pass are sequentially communicated along fluid inlet to liquid collecting annular groove, and zero level bye-pass is connected to fluid inlet, and two
Grade bye-pass is connected to liquid collecting annular groove, and the width of zero level bye-pass is D0, length L0, and the width of level-one bye-pass is D1, length
Degree is L1, D1=D0 β, L1=L0 γ, and the width of second level bye-pass is D2, length L2, D2=D1 β, L2=L1 γ, and β is point
Shape width ratio, when fluid is laminar flow: β=0.19, when fluid is turbulent flow: β=0.28, γ are fractal length ratio, 1≤γ≤
1.2；The length and width size of bye-passes at different levels meets fractal principle, according to Murray principle:Wherein N
=3, i are branch series, when channel fluid is laminar flow, Δ=3；When channel fluid is laminar flow, Δ=7/3, therefore, when
When fluid is laminar flow: β=0.19, when fluid is turbulent flow: β=0.28.
Further, primary furcation pipeline is offered at the connection node between zero level bye-pass and level-one bye-pass, two
A primary furcation pipeline is symmetrical arranged about the central axis of level-one bye-pass, each primary furcation pipeline and level-one branch pipe
Angle between the central axis on road is acute angle, and two primary furcation pipelines are connected to liquid collecting annular groove；Level-one branch pipe
Second level bifurcated pipeline is offered at connection node between road and second level bye-pass, two second level bifurcated pipelines are about second level
The central axis of bye-pass is symmetrical arranged, and the angle between each second level bifurcated pipeline and the central axis of second level bye-pass is
Acute angle, two second level bifurcated pipelines are connected to liquid collecting annular groove.
Specifically, the substrate is identical with the shapes and sizes of upper cover plate, the substrate is 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: bionical point of shape plate heat exchanger of the invention, offers a point shape unit on substrate
Channel, circumferentially array is uniformly distributed about the center of substrate for several points of shape unit channels, and several points of shape unit channels are put on substrate
Shape arrangement is penetrated, the outlet end of several points of shape unit channels is connected to liquid collecting annular groove, and fluid enters from fluid inlet through a point shape
Enter liquid collecting annular groove after unit channel finally to flow out from fluid outlet, several points of shape unit channels 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；Using acute angle as angle of forking in dividing shape unit channel
Degree, the flow resistance that fluid encounters when by acute angle turning is smaller, reduces flow resistance of the fluid in channel；And bifurcated
Pipeline covers entire substrate, and more bifurcated pipeline improves the heat exchange efficiency of present invention heat exchanger.
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 embodiment of the present invention 1；
Fig. 5 is the top view of substrate in the embodiment of the present invention 1；
Fig. 6 is the two-dimensional representation of point shape unit channel in 1 substrate of the embodiment of the present invention；
Fig. 7 is the top view of substrate in the embodiment of the present invention 2.
In figure: 1. substrates, 1-1. divide shape unit channel, 1-1-1. zero level bye-pass, 1-1-2. level-one bye-pass, 1-1-3.
Second level bye-pass, 1-1-4. primary furcation pipeline, 1-1-5. second level bifurcated pipeline, 1-2. liquid collecting annular groove, 1-3. fluid outlet, 2.
Upper cover plate, 2-1. fluid inlet, the width of D0. zero level bye-pass, the length of L0. zero level bye-pass, D1. level-one bye-pass
Width, the length of L1. level-one bye-pass, the width of D2. second level bye-pass, the length of L2. second level bye-pass.
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.
Embodiment 1:
A kind of bionical point of shape plate heat exchanger as shown in Figure 3, it is described including substrate 1 and upper cover plate 2 as shown in Figure 4
The material of substrate 1 is metal material, and the substrate 1 is identical with the shapes and sizes of upper cover plate 2, and the substrate 1 is circle,
The lid of upper cover plate 2 is set on substrate 1, and is sealed cooperation, the center of the upper cover plate 2 by welding with substrate 1
Place offers fluid inlet 2-1, uses laser ablation to offer a point shape unit channel 1-1 on the substrate 1, divides shape described in 6
Circumferentially array is uniformly distributed about the center of substrate 1 by unit channel 1-1, as shown in figure 5, dividing shape unit channel 1-1's described in 6
Input end is interconnected, and is connected to fluid inlet 2-1, and liquid collecting annular groove 1-2, liquid collecting annular groove 1- are offered on the substrate 1
2 be circular ring shape, and the liquid collecting annular groove 1-2 surrounds 6 points of shape unit channel 1-1, and the outlet of shape unit channel 1-1 is divided described in 6
End is connected to liquid collecting annular groove 1-2, and fluid outlet 1-3, the fluid outlet 1-3 and liquid collecting annular groove are offered on the substrate 1
1-2 connection.
Described point of shape unit channel 1-1 includes bye-pass, 3 grades of bye-passes along fluid inlet 2-1 to liquid collecting annular groove 1-2 according to
Secondary connection, the deep equality of 3 grades of bye-passes, width are gradually reduced along fluid inlet 2-1 to liquid collecting annular groove 1-2, adjacent two-stage branch
Bifurcated pipeline is offered at connection node between pipeline, the bye-pass includes zero level bye-pass 1-1-1, level-one bye-pass 1-
1-2 and second level bye-pass 1-1-3, zero level bye-pass 1-1-1, level-one bye-pass 1-1-2 and second level bye-pass 1-1-3 enter along fluid
Mouthful 2-1 is sequentially communicated to liquid collecting annular groove 1-2, and zero level bye-pass 1-1-1 is connected to fluid inlet 2-1, second level bye-pass 1-1-3 and
Liquid collecting annular groove 1-2 connection, the width of zero level bye-pass 1-1-1 is D0, length L0, the width of level-one bye-pass 1-1-2 be D1,
As shown in fig. 6, length is L1, D1=D0 β, L1=L0 γ, the width of second level bye-pass 1-1-3 is D2, length L2, D2=D1
β, L2=L1 γ, β are to divide shape width ratio, when fluid is laminar flow: β=0.19, when fluid is turbulent flow: β=0.28, γ are point
Shape length ratio, γ=1.1；The length and width size of bye-passes at different levels meets fractal principle, according to Murray principle:Wherein N=3, i are branch series, when channel fluid is laminar flow, Δ=3；When channel fluid is laminar flow, Δ
=7/3, therefore, when fluid is laminar flow: β=0.19, when fluid is turbulent flow: β=0.28.
Primary furcation pipeline 1- is offered at connection node between zero level bye-pass 1-1-1 and level-one bye-pass 1-1-2
1-4, two primary furcation pipeline 1-1-4 are symmetrical arranged about the central axis of level-one bye-pass 1-1-2, each fraction
Angle between breeches pipe road 1-1-4 and the central axis of level-one bye-pass 1-1-2 is acute angle, and the angle that the present embodiment provides is
43.3 °, two primary furcation pipeline 1-1-4 are connected to liquid collecting annular groove 1-2；Level-one bye-pass 1-1-2 and second level branch pipe
Offer second level bifurcated pipeline 1-1-5 at connection node between the 1-1-3 of road, two second level bifurcated pipeline 1-1-5 about
The central axis of second level bye-pass 1-1-3 is symmetrical arranged, in each second level bifurcated pipeline 1-1-5 and second level bye-pass 1-1-3
Angle between mandrel line is acute angle, and the angle that the present embodiment provides is that the 43.3 ° two second level bifurcated pipeline 1-1-5 are equal
It is connected to liquid collecting annular groove 1-2.
Bionical point of shape plate heat exchanger of the invention offers a point shape unit channel 1-1, several points of shape lists on substrate 1
Circumferentially array is uniformly distributed about the center of substrate 1 by first channel 1-1, several points of shape unit channel 1-1 radial cloth on substrate 1
It sets, the outlet end of several points of shape unit channel 1-1 is connected to liquid collecting annular groove 1-2, and fluid enters from fluid inlet 2-1 through dividing
Enter liquid collecting annular groove 1-2 after shape unit channel 1-1 finally to flow out from fluid outlet 1-3, several points of shape unit channel 1-1 coverings are whole
A substrate 1, fluid can be flowed to all directions in heat exchanger, and flowing while takes away the heat in heat exchanger, to realize
Uniform heat exchange in heat exchanger, avoids localized hyperthermia, extends the service life of electronic chip, in dividing shape unit channel 1-1
Using acute angle as bifurcation angle, the flow resistance that fluid encounters when by acute angle turning is smaller, reduces fluid in channel
Interior flow resistance；And bifurcated pipeline covers entire substrate 1, more bifurcated pipeline improves the heat exchange effect of present invention heat exchanger
Rate.
Embodiment 2:
Compared with Example 1, difference is only that embodiment 2 as shown in Figure 7: point shape unit channel 1- in the present embodiment
1 has 10, and the angle between each primary furcation pipeline 1-1-4 and the central axis of level-one bye-pass 1-1-2 is acute angle,
The angle that the present embodiment provides is 30 °, between each second level bifurcated pipeline 1-1-5 and the central axis of second level bye-pass 1-1-3
Angle be acute angle, the angle that the present embodiment provides is 30 °, and the present embodiment compared with Example 1, divides shape unit channel 1-1
Quantity increase, the angle of acute angle reduces, and the area of fluid channel covering on substrate 1 increases, and improves present invention heat exchanger
Heat exchange efficiency；In the present embodiment, adjacent two are divided to two primary furcation pipeline 1-1-4 adjacent in shape unit channel 1-1
It can intersect, the intersection of adjacent two primary furcation pipelines 1-1-4 has no effect on the flowing of fluid.
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 bionical point of shape plate heat exchanger, including substrate (1) and upper cover plate (2), upper cover plate (2) lid is located at substrate
(1) it on, and seals and cooperates with substrate (1), the center position of the upper cover plate (2) offers fluid inlet (2-1), feature
It is: offers a point shape unit channel (1-1) on the substrate (1), it is several described to divide shape unit channel (1-1) about substrate
(1) circumferentially array is uniformly distributed at center, and several input ends for dividing shape unit channel (1-1) are interconnected, and and fluid
Entrance (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 several points of shapes
Unit channel (1-1), it is several it is described divide the outlet end of shape unit channel (1-1) to be connected to liquid collecting annular groove (1-2), the substrate
(1) it is offered on fluid outlet (1-3), the fluid outlet (1-3) is connected to liquid collecting annular groove (1-2).
2. bionical point of shape plate heat exchanger as described in claim 1, it is characterised in that: described that shape unit channel (1-1) is divided to wrap
Bye-pass is included, several grades of bye-passes are sequentially communicated along fluid inlet (2-1) to liquid collecting annular groove (1-2), the depth of several grades of bye-passes
Spend equal, width is gradually reduced along fluid inlet (2-1) to liquid collecting annular groove (1-2), the connection section between adjacent two-stage bye-pass
Bifurcated pipeline is offered at point, two bifurcated pipelines are symmetrical arranged about the central axis of bye-pass, the bifurcated pipeline
Angle between the central axis of the lesser bye-pass of width is acute angle, and the bifurcated pipeline is connected to liquid collecting annular groove (1-2).
3. bionical point of shape plate heat exchanger as claimed in claim 2, it is characterised in that: the bye-pass includes zero level bye-pass
(1-1-1), level-one bye-pass (1-1-2) and second level bye-pass (1-1-3), zero level bye-pass (1-1-1), level-one bye-pass (1-
It 1-2) is sequentially communicated along fluid inlet (2-1) to liquid collecting annular groove (1-2) with second level bye-pass (1-1-3), zero level bye-pass (1-1-
1) it is connected to fluid inlet (2-1), second level bye-pass (1-1-3) is connected to liquid collecting annular groove (1-2), zero level bye-pass (1-1-1)
Width be D0, length L0, the width of level-one bye-pass (1-1-2) is D1, length L1, D1=D0 β, L1=L0 γ, two
The width of grade bye-pass (1-1-3) is D2, length L2, D2=D1 β, L2=L1 γ, and β is to divide shape width ratio, when fluid is layer
When stream: β=0.19, when fluid is turbulent flow: β=0.28, γ are fractal length ratio, 1≤γ≤1.2.
4. bionical point of shape plate heat exchanger as claimed in claim 3, it is characterised in that: zero level bye-pass (1-1-1) and level-one
It is offered at connection node between bye-pass (1-1-2) primary furcation pipeline (1-1-4), two primary furcation pipelines
(1-1-4) is symmetrical arranged about the central axis of level-one bye-pass (1-1-2), each primary furcation pipeline (1-1-4) and level-one
Angle between the central axis of bye-pass (1-1-2) is acute angle, and two primary furcation pipelines (1-1-4) are and liquid collecting
Annular groove (1-2) connection；Second level is offered at connection node between level-one bye-pass (1-1-2) and second level bye-pass (1-1-3)
Bifurcated pipeline (1-1-5), central axis pair of two second level bifurcated pipelines (1-1-5) about second level bye-pass (1-1-3)
Claim setting, the angle between each second level bifurcated pipeline (1-1-5) and the central axis of second level bye-pass (1-1-3) is sharp
Angle, two second level bifurcated pipelines (1-1-5) are connected to liquid collecting annular groove (1-2).
5. bionical point of shape plate heat exchanger as described in claim 1, it is characterised in that: the substrate (1) and upper cover plate (2)
Shapes and sizes are identical, and the substrate (1) is circle.
6. bionical point of shape plate heat exchanger as described in claim 1, it is characterised in that: the material of the substrate (1) is metal
Material.
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| CN201920269739.0U CN209344066U (en) | 2019-03-04 | 2019-03-04 | Bionical point of shape plate heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742062A (en) * | 2019-03-04 | 2019-05-10 | 江苏唯益换热器有限公司 | Bionical point of shape plate heat exchanger |
| CN113251845A (en) * | 2021-05-28 | 2021-08-13 | 西安电子科技大学 | Snowflake-like topological microchannel heat exchanger and heat exchange performance detection device thereof |
-
2019
- 2019-03-04 CN CN201920269739.0U patent/CN209344066U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742062A (en) * | 2019-03-04 | 2019-05-10 | 江苏唯益换热器有限公司 | Bionical point of shape plate heat exchanger |
| CN113251845A (en) * | 2021-05-28 | 2021-08-13 | 西安电子科技大学 | Snowflake-like topological microchannel heat exchanger and heat exchange performance detection device thereof |
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