CN104266674B - Lens type simulation device of high heating flux heating surface - Google Patents
Lens type simulation device of high heating flux heating surface Download PDFInfo
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- CN104266674B CN104266674B CN201410554443.5A CN201410554443A CN104266674B CN 104266674 B CN104266674 B CN 104266674B CN 201410554443 A CN201410554443 A CN 201410554443A CN 104266674 B CN104266674 B CN 104266674B
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- heating
- heat flux
- high heat
- heats
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Abstract
The invention discloses a lens type simulation device of a high heating flux heating surface. The lens type simulation device structurally comprises a fixing component, a parallel light generator, a convex lens, a cooler and a visor, wherein the parallel light generator is installed on the fixing component and used for emitting parallel light which has low energy flux density; the convex lens and the cooler are sequentially arranged in the emitting direction of the parallel light, and the convex lens enables the parallel light with low energy flux density to form the high heating flux heating surface on the surface of the cooler. The high heating flux heating surface obtained by the simulation device has the advantages of being uniform in distribution, high in heating flux, free of thermal contact resistance, high in heating efficiency and rapid in temperature rise, the heating flux and the radius of a heating area are adjustable, heating boundary areas with different shapes and areas can be obtained by changing the shape and size of light-permissible holes of the visor, and the various requirements for high heating flux heating in the field of thermal testing and physical experiments can be met.
Description
Technical field
The present invention relates to a kind of analogue means on heating surface, more particularly, to a kind of lens on high heat flux heating surface
Formula analogue means, belongs to thermal measurement technical field.
Background technology
The surface of laboratory simulation high heat flux heating at present mostly uses film heating, Resistant heating and adds
The mode of hot block heating.During using film heating, under high temperature, film is different from heat sink material attribute can lead to huge heat to be answered
The generation of power, it is uneven to produce heat flux distribution during Resistant heating, and heat block heating surface and heat sink surface have very big
Thermal contact resistance, therefore high heat flux heats surface and cannot reach the requirement of simulation.
At present already present high heat flux heat surface analogy method have that heat flow density is relatively low, heat block and heat exchange
The shortcomings of surface resistance of heat transfer is larger, heat current densimeter is not calculated accurately really or heating response is too slow.
Content of the invention
In view of the drawbacks described above of prior art, the technical problem to be solved is to provide one kind can simulate height
Heat flow density heating surface, structure are simple, flexible operation, effective analogue means and method, so that the high heat flux of acquisition is added
Hot surface has that heat flow density is big, heating efficiency is high, heat up rapid feature.
For achieving the above object, the invention provides a kind of high heat flux heats the lens type analogue means on surface, its
Structure includes fixed component, parallel light generator, convex lens, cooler and shadow shield；Described parallel light generator is arranged on institute
State in fixed component, be used for sending directional light, described directional light has low energy current density；Along the described directional light direction of the launch successively
It is provided with described convex lens and described cooler, described convex lens can make the described directional light with described low energy current density exist
Described cooler surface forms high heat flux heating surface.
Further, described fixed component is also equipped with roll adjustment part, described roll adjustment part is used for adjusting described parallel
Position in described fixed component for the optical generator.
Further, the lens type analogue means on described high heat flux heating surface also includes fan, and described fan sets
Put the side in described convex lens, for cooling down to described convex lens.
Further, the distance between described convex lens and described parallel light generator are the first distance, described first away from
From having adjustability, can change, by adjusting described first distance, the radius that described high heat flux heats surface.
Further, the distance between described convex lens and described cooler are second distance, and described second distance has
Adjustability, can change, by adjusting described second distance, the radius that described high heat flux heats surface.
Further, described parallel light generator is parallel light source, by changing intensity and the dot matrix number of described light source
The heat flow density that described high heat flux heats surface can be adjusted.
Further, described parallel light generator is made up of the array of source being parallel to each other.
Further, described high heat flux heating surface is that described directional light passes through described convex lens in described cooler
The hot spot that surface is formed, the heat flow density of described hot spot is 102-108W/m2.
Further, described shadow shield has loophole, the generally circular in shape or polygon of described loophole.
Present invention also offers a kind of filled using the lens type simulation heating surface as any one high heat flux above-mentioned
Put the method carrying out that high heat flux heats surface simulation.
The lens type analogue means that the high heat flux of the present invention heats surface utilizes convex lens that the focusing of directional light is made
With, the directional light light beam with low energy current density that parallel light generator is produced converges to a less region, thus
Heat surface to high heat flux, described high heat flux heating surface have be evenly distributed, heat flow density is big, contactless heat
Resistance, heating efficiency is high, heat up rapid advantage, and heat flow density and heating region radius have adjustability, can lead to simultaneously
Cross the shape of high heat flux regions and the face to adjust optically focused surface for the shadow shield that switching has the loophole of different shape and size
Long-pending, thus obtaining the heating region of different shape and area, it is fully able to meet all kinds of of thermal testing and Physical Experiment field
The requirement of high heat flux heating.The present invention is also cooled down to convex lens using fan, effectively prevent convex lens in optically focused
During the damage that causes is raised due to temperature.
Technique effect below with reference to design, concrete structure and generation to the present invention for the accompanying drawing is described further, with
It is fully understood from the purpose of the present invention, feature and effect.
Brief description
Fig. 1 is the signal of the lens type analogue means on high heat flux heating surface of a preferred embodiment of the present invention
Figure；
Fig. 2 is the shadow shield schematic diagram with circular loophole of presently preferred embodiments of the present invention；
Fig. 3 is the shadow shield schematic diagram with triangle loophole of presently preferred embodiments of the present invention；
Fig. 4 is the shadow shield schematic diagram with square loophole of presently preferred embodiments of the present invention；
Fig. 5 is the shadow shield schematic diagram with rectangle loophole of presently preferred embodiments of the present invention.
Specific embodiment
As shown in Fig. 1～Fig. 5, a preferred embodiment of the present invention provides a kind of high heat flux and heats the saturating of surface
Mirror analogue means, its structure includes fixed component 1, parallel light generator 3, convex lens 5 and cooler 7.Wherein, directional light is sent out
Raw device 3 is arranged in fixed component 1, and parallel generator 3 is made up of one group of array of source being parallel to each other, and is used for sending directional light
4, directional light 4 has low energy current density；It is disposed with convex lens 5, shadow shield 6 and cooler 7 along directional light 4 direction of the launch,
Shadow shield 6 be provided centrally with loophole 10.Convex lens 5 can make the directional light 4 with described low energy current density pass through shading
Loophole 10 on plate 6, forms high heat flux heating surface on cooler 7 surface, and shadow shield 6 has regulation converging beam
Shape is to change the effect of heating region shape.
Roll adjustment part 2 is provided with fixed component 1, roll adjustment part 2 is used for adjusting parallel light generator 3 in fixed component 1
On position.
In the present embodiment, the distance between convex lens 5 and parallel light generator 3 are the first distance, convex lens 5 and cooler
The distance between 7 is second distance, and the first distance and second distance are respectively provided with adjustability, by adjust the first distance and second away from
Heat the radius on surface from the high heat flux that can change the formation of cooler 7 surface.
In the present embodiment, parallel light generator 3 can send the directional light 4 of varying strength and dot matrix number, flat by changing
The intensity of the light source of row optical generator 3 and dot matrix number can adjust the heat flow density that high heat flux heats surface.
High heat flux in the present embodiment heats what surface was formed on cooler 7 surface by convex lens 5 for directional light 4
Hot spot, the heat flow density of this hot spot is 102-108W/m2.
In the present embodiment, the shape and size of the loophole 10 on shadow shield 6 are programmable, can be circular (referring to
Fig. 2) or polygon, such as triangle (referring to Fig. 3), square (referring to Fig. 4), rectangle (referring to Fig. 5), five sides
Shape etc. or other arbitrary shape, its size range is arbitrary.
The lens type analogue means that the high heat flux of the present embodiment heats surface also includes fan 9, because convex lens 5 are right
Directional light 4 has absorption characteristic, thus the temperature of itself can be made to raise, and therefore in the present embodiment, fan 9 is arranged on convex lens
Convex lens 5 are cooled down by the side of mirror 5, and the heat that will accumulate in convex lens 5 is dispersed in the way of forced convertion, it is to avoid
The damage that causes because temperature is too high.Arrow 8 in Fig. 1 represents the blowing direction of fan 9.
The present embodiment additionally provides a kind of lens type analogue means using above-mentioned high heat flux heating surface and carries out height
The method that heat flow density heats surface simulation：Using convex lens 5, the directional light that parallel light generator 3 sends is converged, after convergence
Forming hot spot on cooler 7 surface is high heat flux heating surface.By adjust parallel light generator 3 and convex lens 5 and
Convex lens 5 and the size of the distance between cooler 7 determination heating region radius, pass through to change parallel light generator 3 simultaneously
The intensity of light source is adjusting the size of heat flow density, thus the high heat flux heating surface required for obtaining.
High heat flux that the present embodiment obtains heating surface have be evenly distributed, heat flow density is big, contactless thermal resistance, send out
The thermal efficiency is high, heat up rapid, heating region shape and the adjustable advantage of area, and the high heat flux of this enforcement heats the saturating of surface
It is cold that mirror analogue means can be used for aerospace flight vehicle thermal protection, electric device cooling, big temperature difference heat energy utilization, nuclear reactor
The field such as but.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art is no
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
It is available that personnel pass through logical analysis, reasoning, or a limited experiment under this invention's idea on the basis of existing technology
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a kind of high heat flux heats the lens type analogue means on surface it is characterised in that including fixed component, directional light is sent out
Raw device, convex lens, cooler and shadow shield；Described parallel light generator is arranged in described fixed component, is used for sending parallel
Light, described directional light has low energy current density；It is disposed with described convex lens and described cold along the described directional light direction of the launch
But device, described convex lens can make the described directional light with described low energy current density form high hot-fluid in described cooler surface
Density heats surface；The lens type analogue means that described high heat flux heats surface also includes fan, and described fan is arranged on
The side of described convex lens, for cooling down to described convex lens；Between described convex lens and described parallel light generator
Distance is the first distance, and described first distance has adjustability, can change described high hot-fluid by adjusting described first distance
Density heats the radius on surface；The distance between described convex lens and described cooler are second distance, described second distance tool
There is adjustability, can change, by adjusting described second distance, the radius that described high heat flux heats surface.
2. high heat flux as claimed in claim 1 heats the lens type analogue means on surface it is characterised in that described fixation
Roll adjustment part is also equipped with part, described roll adjustment part is used for adjusting described parallel light generator in described fixed component
Position.
3. high heat flux as claimed in claim 1 heats the lens type analogue means on surface it is characterised in that described parallel
Optical generator is made up of one group of array of source being parallel to each other.
4. high heat flux as claimed in claim 1 heats the lens type analogue means on surface it is characterised in that described parallel
Optical generator is parallel light source, can adjust described high heat flux heating by the intensity and dot matrix number changing described light source
The heat flow density on surface.
5. high heat flux as claimed in claim 1 heats the lens type analogue means on surface it is characterised in that described hyperpyrexia
Current density heating surface is the hot spot that described directional light is formed in described cooler surface by described convex lens, described hot spot
Heat flow density is 102-108W/m2.
6. high heat flux as claimed in claim 1 heats the lens type analogue means on surface it is characterised in that described shading
Plate has loophole, the generally circular in shape or polygon of described loophole.
7. a kind of lens type simulation dress heating surface using the high heat flux as described in any one in claim 1～6
Put the method carrying out that high heat flux heats surface simulation.
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| CN201410554443.5A CN104266674B (en) | 2014-10-17 | 2014-10-17 | Lens type simulation device of high heating flux heating surface |
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| CN201410554443.5A CN104266674B (en) | 2014-10-17 | 2014-10-17 | Lens type simulation device of high heating flux heating surface |
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| CN104266674B true CN104266674B (en) | 2017-02-15 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103459083A (en) * | 2011-04-08 | 2013-12-18 | 三菱电机株式会社 | Laser machining device |
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| KR100990028B1 (en) * | 2005-10-18 | 2010-10-26 | 지에스아이 그룹 코포레이션 | Methods and apparatus for utilizing an optical reference |
| CN101590570A (en) * | 2008-05-26 | 2009-12-02 | 上海市激光技术研究所 | A kind of method of welding tube type heat exchanger by using laser scanning and device |
| EP2451630B1 (en) * | 2009-07-06 | 2016-03-30 | 3D Systems, Inc. | Imaging system |
| CN103234998B (en) * | 2013-04-25 | 2014-06-18 | 哈尔滨工业大学 | High heating flux solar full-spectrum radiation heating device |
| CN103878704B (en) * | 2013-11-21 | 2016-03-23 | 湖南大学 | A kind of equipment utilizing optical-fiber laser dressing compact-type binding agent ultra hard emery wheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103459083A (en) * | 2011-04-08 | 2013-12-18 | 三菱电机株式会社 | Laser machining device |
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