CN108548437A - Based on bionical fishbone type small staggeredly alveolar heat exchanger core body and heat exchanger - Google Patents
Based on bionical fishbone type small staggeredly alveolar heat exchanger core body and heat exchanger Download PDFInfo
- Publication number
- CN108548437A CN108548437A CN201810590275.3A CN201810590275A CN108548437A CN 108548437 A CN108548437 A CN 108548437A CN 201810590275 A CN201810590275 A CN 201810590275A CN 108548437 A CN108548437 A CN 108548437A
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- CN
- China
- Prior art keywords
- heat exchanger
- rib
- fishbone type
- bionical
- alveolar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012530 fluid Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000011664 nicotinic acid Substances 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Abstract
The invention discloses a kind of based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, including shell, core is divided into two layers by inside by heat exchanger plates, two layers of fishbone type combinations of ribs is provided in every layer of cavity, the herringbone rib that each layer of fishbone type combinations of ribs is mutually parallel by several columns forms, each row herringbone rib is made of the short rib arranged in splayed several, same row it is several all identical to short rib shape shape, angle, spacing；Two layers of herringbone rib does not contact；Two layers of herringbone rib is separately fixed on the inner wall of media flow cavity.Bionical element is fused in the design of heat exchanger by the present invention, designs small staggeredly alveolar heat exchanger, which improves the performance of heat exchanger in terms of heat transfer coefficient, heat transfer area two, and light structure is easy, suitable for aerospace heat exchanger.
Description
Technical field
The invention belongs to technical field of heat exchange equipment, and in particular to a kind of to be changed based on the small staggeredly alveolar of bionical fishbone type
Hot device core and heat exchanger.
Background technology
The application of heat exchanger in the industry is extremely wide, to realize that the fields such as power, chemical industry, ship, refrigeration and machinery are set
Standby low energy consumption and Effec-tive Function be unable to do without the design of advanced heat exchanger.For promoted heat exchanger exchange capability of heat, generally have with
Lower three kinds of means：Heat transfer temperature difference is improved, increases heat transfer area, increase convection transfer rate.In heat exchanger without phase-change, improve
Heat transfer temperature difference usually for example enables cold fluid and hot fluid adverse current realize by reasonable Arrangement runner, and increasing heat exchange area means that increase is changed
Hot device total volume reduces channel cross-section to arrange more multiple flow passages, and increasing convection transfer rate can be realized by flow-disturbing.From
From the point of view of current design of heat exchanger, most widely used is shell-and-tube heat exchanger and plate heat exchanger.Wherein shell-and-tube heat exchanger
As shown in Figure 1, its due to volume is larger, heat exchange efficiency is relatively low and be dfficult to apply to need lightweight, small size heat exchanger field
It closes.The typical fin configuration of plate-fin heat exchanger is as shown in Fig. 2, the flowing in wherein traditional straight channel plate-fin heat exchanger lacks
Weary enough disturbances, the design of the channels such as corrugated fin generate more whirlpool and dead zone so that flowing again, lead to the shape resistance of flowing
Power increases and consumes more pump works.
In aerospace heat exchanger, the reliability for ensureing heat exchanger is also needed to while pursuing heat exchange efficiency, that is, is safeguarded
It is convenient, reliable for operation.When the fluid flowed in heat exchanger has corrosivity or precipitation, clast, it is necessary to assure heat exchanger is not easy
It blocks, therefore the channel of heat exchanger cannot be too small.
For current most heat exchangers in order to improve heat transfer effect, some design volumes are excessive to cause operating weight excessive, has
It is designed to that bionic microchannel but thinking are confined to tree-shaped bifurcated, does not adapt to aerospace field, electronic chip neck at this stage
High efficient heat exchanging demand in the high-end devices such as domain.The exchange capability of heat of traditional shell-and-tube heat exchanger is insufficient for current again simultaneously
Heat exchange demand.Good reliability is also needed in the heat exchanger of high-end field application more at present, reduces heat exchanger channel merely
Therefore approach to increase heat exchange area-volume ratio receives obstruction, i.e., cannot be changed by reducing channel size merely to realize
Heat is strengthened.
Invention content
The object of the present invention is to provide a kind of based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, passes through reference
Organism alveolar staggeredly, chamber spacer structure promote heat exchanger performance, while heat exchanger core body volume can be reduced, solved existing
There is the problem of heat exchanger core body high heat-exchanging performance and micro-volume are difficult to take into account.
It is a further object of the present invention to provide the heat exchangers with above-mentioned heat exchanger core body.
The technical solution adopted in the present invention is, based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, the core
Body includes shell, and core is divided into two layers by inside by heat exchanger plates, two layers of fishbone type combinations of ribs is provided in every layer of cavity, often
The herringbone rib that one layer of fishbone type combinations of ribs is mutually parallel by several columns forms, and each row herringbone rib is by several to being in
Splayed arrangement short rib composition, same row it is several all identical to short rib shape shape, angle, spacing；Two layers of herringbone rib is not
Contact；Two layers of herringbone rib is separately fixed on the inner wall of media flow cavity.
The features of the present invention also characterized in that：
Further, the distance between each pair of described short rib is 0.1-2 times of short rib length.
Further, the direction of fishbone type rib described in each column is flowed to medium into certain alternate angle.
Further, the height of every layer of fishbone type combinations of ribs is the 1/2 of media flow cavity.
Further, two layers of fishbone type combinations of ribs has interval in height, is divided into high 0.1-1 times of rib.
Further, it is flowed to along medium in every layer of media flow cavity or flows to angled direction also with medium
It is provided with one or more baffles.
The present invention also provides a kind of heat exchangers, have any of the above-described based on the small staggeredly alveolar heat exchange of bionical fishbone type
Device core.
The setting of fishbone type structure to form tiny flow cavity much staggeredly in media flow cavity, i.e., bionical
Staggeredly alveolar.It when fluid flows in the flow cavity, flows, can be repeatedly blended between two rows of runners around fishbone type structure
And it generates conducive to the disturbance to exchange heat；, the gap between upper layer and lower layer fishbone structure can make flowing become increasingly complex, be conducive to
The generation of whirlpool, while fluid is turned back, overturn by wall surface blocking in boundary so that it generates whirlpool, Secondary Flow and whereby
The enhanced heat exchange in runner below.Fishbone type structure itself can not only greatly enhance the blending degree of fluid, increase heat exchange
Coefficient, and the secondary surface energy that rib is formed increases heat exchange area.The structure can be from the increase coefficient of heat transfer, increase heat exchange area two
Aspect promotes the performance of heat exchanger.
The invention has the advantages that bionical element is fused in the design of heat exchanger by the present invention, small friendship is designed
Wrong alveolar heat exchanger, the structure improve the performance of heat exchanger in terms of heat transfer coefficient, heat transfer area two,
Unit area heat exchange power reach traditional pipe type heat exchanger, 7 times or more of shell-and-tube heat exchanger, and reach and surpass
General stacked, plate heat exchanger performance is crossed, close to micro-channel heat exchanger performance.Simultaneously because its inner passage does not reach
The size range of microchannel, fishbone type structure setting but also in flowing Secondary Flow and various disturbances it is more, thus can be very big
Degree avoids the problem that blocking.Since its unit volume heat transfer effect is stronger, smaller volume can be used to realize identical heat exchange
Demand, to realize the purpose for reducing heat exchanger volume.Simultaneously because the reduction of its volume, internal cavities are also compared with traditional heat exchangers
It reduces very much, therefore working medium required under identical heat exchange demand can also reduce, that is, its operating weight can lower 1/2 or so.
Description of the drawings
Fig. 1 is traditional shell-and-tube heat exchanger structural schematic diagram；
Fig. 2 is the typical fin structure schematic diagram of traditional plate-fin heat exchanger；
Fig. 3 is the structural schematic diagram of the small staggeredly alveolar heat exchanger core body of fishbone type of the present invention；
Fig. 4 a-4c are the structural schematic diagrams of fishbone type rib of the present invention；
Fig. 5 is the sectional drawing schematic diagram of two layers of fishbone type rib；
Fig. 6 is that present media flows to schematic diagram；
Fig. 7 is partition board schematic diagram of the present invention.
In figure, 1. shells, 2. heat exchanger plates, 3. straight line ribs, 4. baffles.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to
These embodiments.
The present invention is based on the structures of the small staggeredly alveolar heat exchanger core body of bionical fishbone type as shown in figure 3, the core packet
Including shell 1, core is divided into two layers by inside by heat exchanger plates 2, respectively as the media flow cavity of cold and hot medium fluid flowing,
Heat exchange is carried out by heat exchanger plates 2.Two layers of fishbone type combinations of ribs, each layer of fishbone type combinations of ribs are provided in every layer of cavity
The herringbone rib being mutually parallel by several columns forms, and each row herringbone rib is by several short ribs 3 to being arranged in splayed
Composition, same row it is several all identical to short rib shape shape, angle, spacing, that is, form fishbone type.Two layers of herringbone rib does not connect
It touches.Two layers of herringbone rib is separately fixed on the inner wall of media flow cavity.
Wherein one layer of fishbone type combinations of ribs as shown in Figure 4 a, each row herringbone rib is all at eight word arrangement, such as
Fig. 4 b are another layer of fishbone type combinations of ribs, and each row herringbone rib is all at positive eight word arrangement.The mutually interspersed group of two layers of rib
It is combined, upper layer rib and lower layer's rib are parallel to each other, but are not in contact with a little, such as Fig. 4 c.The distance between each pair of short rib is excellent
Select short rib length 0.1-2 times.
The height of every layer of fishbone type combinations of ribs can be the 1/2 of media flow cavity, that is, two layers of fishbone type combinations of ribs
It is not spaced in height.Two layers of fishbone type combinations of ribs can also have certain intervals in height, as shown in figure 5, interval
It is preferred that taking high 0.1-1 times of rib.
The direction of each row herringbone rib can be flowed to medium it is parallel, can also with medium flow at certain alternate angle
(namely with heat exchanger core body sidewall at certain alternate angle).
The section of fishbone type rib includes but are not limited to parallelogram, rectangle, triangle, trimming ellipse in Fig. 6
The shapes such as shape, cross, L-shaped, hexagon, i.e. the rib section made of polygon, camber line and combinations thereof all can be regarded as staggeredly alveolar
The rib section form of structure.
Such as Fig. 7, in order to further increase heat exchange property, every layer of media flow cavity is interior along medium flow direction or and medium
It flows to angled direction and is additionally provided with baffle 4, linear type rib row is divided into several groups by the baffle, and baffle is deposited
Number of turns of the medium in staggeredly rib core is being increased, flow path is changed, is enhancing exchange capability of heat.Baffle can be set as n
(n >=1), to which basin is divided into 1/ (n+1).How much depending on media flow cavity shape and size, in general n is specially
N=2,3,4 or so can reduce flow resistance, and can increase flow disturbance, enhancing heat exchange；The cavity that fluid is formed from combinations of ribs
It when flowing through, is blocked, and then turns back by baffle, to reinforce exchanging heat.It can be with 10mm~200mm depending on heat exchanger volume when baffle plate setting
For interval, the closeer fluid of baffle turn back it is more frequent, exchange heat stronger while pressure drop it is higher.Shape overall dimensions, the partition board of heat exchanger
Depending on form and thickness, inlet and outlet form, rib cross section parameter heat exchange power optionally and volume requirement, parameter is more and becomes
Change is comparatively arbitrary, is not given here fixed value.
By taking a kind of small staggeredly alveolar heat exchanger core body of fishbone type of the present invention as an example, heat exchange property calculating is carried out.
It is 2 to take the fishbone type combinations of ribs number of plies, without interval, the high 1mm of the single rib of fluid channel, short rib spacing between two layers
2mm, single short rib length are 10mm, and no baffle, the angle for per a pair being in splay short rib is 60 °, and short rib section takes rectangle,
Rib top and rib bottom width 0.8mm, i.e. rib area of section 0.8mm2。
The heat exchanger of the embodiment is calculated, when cold fluid and hot fluid mean logarithmic temperature difference is 35 DEG C or so, hot-fluid is close
Degree is about 8.8W/cm2, unit area heat exchange power reach traditional pipe type heat exchanger, 7 times or more of shell-and-tube heat exchanger, and
General stacked, plate heat exchanger performance is reached and exceeded, close to micro-channel heat exchanger performance.Simultaneously because its inner passage
Do not reach the size range of microchannel, fishbone type structure setting but also flowing in Secondary Flow and it is various disturbance it is more, thus
It can largely avoid the problem that blocking.Since its unit volume heat transfer effect is stronger, smaller volume can be used to realize phase
Same heat exchange demand, to realize the purpose for reducing heat exchanger volume.Simultaneously because the reduction of its volume, internal cavities also relatively pass
Heat exchanger of uniting reduces very much, therefore working medium required under identical heat exchange demand can also reduce, that is, its operating weight can lower 1/2
Left and right.
Meanwhile from the point of view of the numerous range of geometrical variations and geometrical variations that staggeredly alveolar may have of heat exchanger, this
Invention provides a large amount of Bionic Design form and thinking, can further open up Bionic Design answering in real exchanger
With.
Claims (7)
1. based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, which is characterized in that the core includes shell, and inside is logical
It crosses heat exchanger plates to be divided into core two layers, two layers of fishbone type combinations of ribs, each layer of fishbone type rib groups is provided in every layer of cavity
It closes the herringbone rib being mutually parallel by several columns to form, each row herringbone rib is by several short ribs to arranging in splayed
Composition, same row it is several all identical to short rib shape shape, angle, spacing；Two layers of herringbone rib does not contact；Two layers of herringbone rib
Item is separately fixed on the inner wall of media flow cavity.
2. according to claim 1 based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, which is characterized in that every
To 0.1-2 times that the distance between described short rib is short rib length.
3. according to claim 1 based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, which is characterized in that every
The direction and medium for arranging the fishbone type rib are flowed into certain alternate angle.
4. according to claim 1 based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, which is characterized in that institute
The height for stating every layer of fishbone type combinations of ribs is the 1/2 of media flow cavity.
5. according to claim 1 based on the small staggeredly alveolar heat exchanger core body of bionical fishbone type, which is characterized in that institute
State two layers of fishbone type combinations of ribs has interval in height, is divided into high 0.1-1 times of rib.
6. it is according to any one of claims 1-5 based on bionical fishbone type it is small staggeredly alveolar heat exchanger core body,
It is characterized in that, flows to along medium in every layer of media flow cavity or flow to angled direction with medium and be additionally provided with one
A or multiple baffles.
7. a kind of heat exchanger, have as described in any one of claim 1-6 based on the small alveolar that interlocks of bionical fishbone type
Heat exchanger core body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590275.3A CN108548437B (en) | 2018-06-08 | 2018-06-08 | Bionic-based fishbone-type micro-staggered alveolar heat exchanger core and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590275.3A CN108548437B (en) | 2018-06-08 | 2018-06-08 | Bionic-based fishbone-type micro-staggered alveolar heat exchanger core and heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108548437A true CN108548437A (en) | 2018-09-18 |
| CN108548437B CN108548437B (en) | 2023-11-03 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810590275.3A Active CN108548437B (en) | 2018-06-08 | 2018-06-08 | Bionic-based fishbone-type micro-staggered alveolar heat exchanger core and heat exchanger |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611243A (en) * | 2020-12-23 | 2021-04-06 | 长春工程学院 | Novel strengthen air heat transfer phase transition heat accumulation device |
| CN115111955A (en) * | 2022-06-17 | 2022-09-27 | 浙江大学 | Gill bionic plate-type micro-reactor heat exchange surface structure |
| CN115111955B (en) * | 2022-06-17 | 2024-04-26 | 浙江大学 | Heat exchange surface structure of fish gill bionic plate-type microreactor |
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| CN107482275A (en) * | 2016-06-08 | 2017-12-15 | 罗伯特·博世有限公司 | The register and battery module of battery module |
| CN209131441U (en) * | 2018-06-08 | 2019-07-19 | 陕西益信伟创智能科技有限公司 | It is a kind of based on bionical fishbone type it is small staggeredly alveolar heat exchanger core body and heat exchanger |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2547374A1 (en) * | 1974-10-28 | 1976-04-29 | Vmw Ranshofen Berndorf Ag | Multi chamber central heating radiator - has flow and return headers with inter connected ribbed section (NL030576) |
| US4696342A (en) * | 1985-06-28 | 1987-09-29 | Nippondenso Co., Ltd. | Plate-type heat exchanger |
| JP2001041678A (en) * | 1999-01-28 | 2001-02-16 | Denso Corp | Heat exchanger |
| JP2007212120A (en) * | 2006-01-13 | 2007-08-23 | T Rad Co Ltd | Inner fin, and heat sink provided with the inner fin |
| JP2008185307A (en) * | 2007-01-31 | 2008-08-14 | Calsonic Kansei Corp | Fin for heat exchanger |
| CN202547468U (en) * | 2012-01-16 | 2012-11-21 | 秦皇岛莱特流体设备制造有限公司 | Turbulent flow type heat exchange plate bundle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611243A (en) * | 2020-12-23 | 2021-04-06 | 长春工程学院 | Novel strengthen air heat transfer phase transition heat accumulation device |
| CN115111955A (en) * | 2022-06-17 | 2022-09-27 | 浙江大学 | Gill bionic plate-type micro-reactor heat exchange surface structure |
| CN115111955B (en) * | 2022-06-17 | 2024-04-26 | 浙江大学 | Heat exchange surface structure of fish gill bionic plate-type microreactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108548437B (en) | 2023-11-03 |
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