CN108548435A - Based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body and heat exchanger - Google Patents
Based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body and heat exchanger Download PDFInfo
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- CN108548435A CN108548435A CN201810589822.6A CN201810589822A CN108548435A CN 108548435 A CN108548435 A CN 108548435A CN 201810589822 A CN201810589822 A CN 201810589822A CN 108548435 A CN108548435 A CN 108548435A
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- heat exchanger
- row
- bionical
- rib
- linear
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of based on the small staggeredly alveolar heat exchanger core body of bionical linear ribs row's type, it include at least two layer medium flow cavity separated by heat exchanger plates, at least two layers of linear type rib row is provided in every layer of media flow cavity, the linear type rib row is made of several straight line ribs being mutually parallel, and linear type rib row described in adjacent two layers is arranged in a crossed manner.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 based on the small staggeredly lung of bionical linear ribs row's type
Steep heat exchanger core body 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 linear ribs row's type, passes through
Use for reference organism alveolar staggeredly, chamber spacer structure promote heat exchanger performance, while heat exchanger core body volume can be reduced, solved
The problem of existing 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 linear ribs row's type,
Include at least two layer medium flow cavity separated by heat exchanger plates, at least two layers of straight line is provided in every layer of media flow cavity
Type rib is arranged, and the linear type rib row is made of several straight line ribs being mutually parallel, and linear type rib row described in adjacent two layers is intersected
Setting.
The features of the present invention also characterized in that：
Further, every layer of linear type rib row flows to medium into certain alternate angle.
Further, the alternate angle between every layer of linear type rib row and fluid flow direction is between 20~160 °.
Further, the section of the straight line rib is any regular or irregular envelope that straight line and/or camber line form
Close figure.
Further, 2~4 layers of linear type rib of setting are arranged in every layer of media flow cavity.
Further, the distance between adjacent described straight line rib of each layer is equal with straight line rib heights.
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 baffle, linear type rib row is divided into several groups by the baffle.
The present invention also provides a kind of heat exchangers, have above-mentioned based on the small staggeredly alveolar heat exchange of bionical linear ribs row's type
Device core.
The present invention, which is arranged, to form tiny flow cavity much staggeredly in media flow cavity, i.e., bionical staggeredly lung
Steep rib structure (similarly hereinafter).It, can be between two rows of runners repeatedly between running in the guide rib staggeredly when fluid flows in the flow cavity
Blend and generate the disturbance conducive to heat exchange, while fluid is turned back, overturn by wall surface blocking in boundary, make its generate be vortexed,
Secondary Flow, and the enhanced heat exchange in runner below whereby.Staggeredly alveolar itself can not only greatly enhance the blending journey of fluid
Degree increases the coefficient of heat transfer, and the secondary surface that staggeredly rib is formed plays and increases heat-transfer surface similar to radiator heat-conducting fins
Long-pending effect.The structure can promote the performance of heat exchanger in terms of increasing the coefficient of heat transfer, increasing heat exchange area two.
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, unit area heat exchange work(in terms of heat transfer coefficient, heat transfer area two
Rate reach traditional pipe type heat exchanger, 8 times or more of shell-and-tube heat exchanger, and reach and exceed general stacked, plate-type heat-exchange
The performance of device, close to micro-channel heat exchanger performance.Simultaneously because its inner passage does not reach the size of microchannel, and in flowing
Secondary Flow and various disturbances are more, thus can largely avoid the problem that blocking.Simultaneously because its unit volume heat exchange effect
Fruit is strong, it is possible to identical heat exchange demand is realized with smaller volume, to realize the purpose for reducing heat exchanger volume.Simultaneously
Due to the reduction of its volume, internal cavities also reduce much compared with traditional heat exchangers, therefore required working medium can be greatly reduced when operation,
That is, its operating weight can also be greatly reduced.
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 linear ribs row type of the present invention；
Fig. 4 is rib sectional drawing schematic diagram of the present invention；
Fig. 5 is that present media flows to schematic diagram；
Fig. 6 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 linear ribs row's type as shown in figure 3, the core
Body includes shell 1, and core is divided into two layers by inside by heat exchanger plates 2, respectively as the media flow of cold and hot medium fluid flowing
Cavity carries out heat exchange by heat exchanger plates 2.Be provided at least two layers linear type rib row in every layer of cavity, linear type rib row by
Several straight line ribs 3 composition being mutually parallel, the direction of straight line rib and medium flow at certain alternate angle α (namely with heat exchange
Device core side wall is at certain alternate angle α, such as Fig. 5).Linear type rib row described in adjacent two layers is staggered, i.e. the rib of adjacent two layers
There is certain angle β between item.
Every layer of linear type rib row of the present invention can be the single layer linear type rib plate-laying with frame, and multiple rib plate-layings are handed over
Mistake overlapping is fixed together, and is installed in media flow cavity, you can shape linear type rib arranges structure.It can also will be adjacent
Two layers of straight line rib welds together, and forms fixed reticular structure.Interlocking between the direction of straight line rib and medium flow direction
Angle α is preferably between 20~160 °, and alternate angle α is too small can be so that heat exchange area increase be limited, and too conference makes flow area become
It obtains very small.
The section of straight line rib include but are not limited to parallelogram in Fig. 4, rectangle, triangle, trimming ellipse,
The shapes such as cross, L-shaped, hexagon, i.e., any regular being made of straight line and/or camber line or irregular closed figure.
In order to optimize the structure of heat exchanger core body, it is preferably provided with 2~4 layers of linear type rib row in every layer of cavity, is more than 4 layers
When, heat exchange efficiency promotion is limited, but the volume and weight of heat exchanger core body steeply rises；No longer it is just then bionical less than 2 layers
Staggeredly alveolar rib structure.
Height and spacing of straight line rib 3 etc. are designed according to the shape of media flow cavity.Preferably, every layer of linear type rib
The height of row accounts for the 1/4~1/2 of corresponding media flow cavity height, such as a height of 0.2mm~40mm of media flow cavity layer,
Corresponding single layer linear type rib row height can be 0.1mm~20mm.Different, every layer of linear type rib depending on rib section and form
The spacing of adjacent straight line rib is 0.2mm~30mm in row.Rib section form is various, but single trapezoid cross section product is in 0.01mm2
~300mm2Between when, heat transfer effect is preferable.
Such as Fig. 6, 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 linear ribs row type of the present invention as an example, heat exchange property calculating is carried out.It takes
It is 2 layers that linear type rib, which arranges the number of plies, and staggeredly rib number of rows is 2, the high 1mm of the single rib of fluid channel, rib spacing 2mm, no baffle, alternate angle
60 °, rib section take it is trapezoidal, rib top width a be 0.6mm, rib bottom width 1mm, i.e. rib area of section 0.8mm2, rib straight line arrangement.
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 9W/cm2, unit area heat exchange power reach traditional pipe type heat exchanger, 8 times or more of shell-and-tube heat exchanger, and reach
It arrives and more than general stacked, plate heat exchanger performance, close to micro-channel heat exchanger performance.Simultaneously because its inner passage does not have
There is the size for reaching microchannel, and Secondary Flow and various disturbances are more in flowing, thus can largely avoid what is blocked from asking
Topic.Simultaneously because its unit volume heat transfer effect is strong, it is possible to identical heat exchange demand is realized with smaller volume, to real
Now reduce the purpose of heat exchanger volume.Simultaneously because the reduction of its volume, internal cavities are also many compared with traditional heat exchangers diminution, because
Required working medium can be greatly reduced when this operation, that is, its operating weight can also be greatly reduced.
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 (8)
- Include at least two layers separated by heat exchanger plates 1. based on the small staggeredly alveolar heat exchanger core body of bionical linear ribs row's type Media flow cavity, which is characterized in that at least two layers of linear type rib row, the linear type are provided in every layer of media flow cavity Rib row is made of several straight line ribs being mutually parallel, and linear type rib row described in adjacent two layers is arranged in a crossed manner.
- 2. according to claim 1 existed based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body, feature In every layer of linear type rib row is with medium flow direction at certain alternate angle.
- 3. according to claim 2 existed based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body, feature In the alternate angle between every layer of linear type rib row and fluid flow direction is between 20~160 °.
- 4. according to claim 1 existed based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body, feature In the section of the straight line rib is any regular or irregular closed figure that straight line and/or camber line form.
- 5. according to claim 1 existed based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body, feature In 2~4 layers of linear type rib of setting are arranged in every layer of media flow cavity.
- 6. according to claim 1 based on the small staggeredly alveolar heat exchanger core body of bionical dot matrix, which is characterized in that every The distance between one layer of adjacent straight line rib is equal with straight line rib heights.
- 7. according to any one of claim 1-6 based on bionical linear ribs row's type it is small staggeredly alveolar heat exchanger core Body, which is characterized in that flow to along medium in every layer of media flow cavity or flow to angled direction with medium and also set It is equipped with baffle, linear type rib row is divided into several groups by the baffle.
- 8. a kind of heat exchanger has small staggeredly based on bionical linear ribs row's type as described in any one of claim 1-7 Alveolar heat exchanger core body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810589822.6A CN108548435A (en) | 2018-06-08 | 2018-06-08 | Based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810589822.6A CN108548435A (en) | 2018-06-08 | 2018-06-08 | Based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body and heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN108548435A true CN108548435A (en) | 2018-09-18 |
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ID=63493578
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810589822.6A Pending CN108548435A (en) | 2018-06-08 | 2018-06-08 | Based on bionical linear ribs row's type small staggeredly alveolar heat exchanger core body and heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022664A (en) * | 2019-04-04 | 2019-07-16 | 上海理工大学 | A kind of device carrying out electronic element radiating using bionical alveolar heat exchanger |
| CN113543600A (en) * | 2021-07-21 | 2021-10-22 | 中国石油大学(华东) | Incomplete filling staggered micro-channel heat exchanger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073104U (en) * | 1990-06-07 | 1991-03-13 | 宜兴市钮家耐火电瓷厂 | Heat exchanger |
| CN101100951A (en) * | 2007-07-13 | 2008-01-09 | 北京航空航天大学 | Gradually widened slot staggered rib passage suitable for internal cooling member as turbine blade |
| CN104296566A (en) * | 2013-07-16 | 2015-01-21 | 无锡协丰节能技术有限公司 | Plate-fin heat exchanger |
| CN104534904A (en) * | 2014-11-13 | 2015-04-22 | 中国船舶重工集团公司第七�三研究所 | Sawtooth-shaped louver fin type plate fin heat exchanger |
-
2018
- 2018-06-08 CN CN201810589822.6A patent/CN108548435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073104U (en) * | 1990-06-07 | 1991-03-13 | 宜兴市钮家耐火电瓷厂 | Heat exchanger |
| CN101100951A (en) * | 2007-07-13 | 2008-01-09 | 北京航空航天大学 | Gradually widened slot staggered rib passage suitable for internal cooling member as turbine blade |
| CN104296566A (en) * | 2013-07-16 | 2015-01-21 | 无锡协丰节能技术有限公司 | Plate-fin heat exchanger |
| CN104534904A (en) * | 2014-11-13 | 2015-04-22 | 中国船舶重工集团公司第七�三研究所 | Sawtooth-shaped louver fin type plate fin heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022664A (en) * | 2019-04-04 | 2019-07-16 | 上海理工大学 | A kind of device carrying out electronic element radiating using bionical alveolar heat exchanger |
| CN110022664B (en) * | 2019-04-04 | 2020-12-01 | 上海理工大学 | Device for radiating electronic element by utilizing bionic alveolar heat exchanger |
| CN113543600A (en) * | 2021-07-21 | 2021-10-22 | 中国石油大学(华东) | Incomplete filling staggered micro-channel heat exchanger |
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Application publication date: 20180918 |