CN203378081U - Graphite-flat radiation source - Google Patents
Graphite-flat radiation source Download PDFInfo
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- CN203378081U CN203378081U CN201320452784.2U CN201320452784U CN203378081U CN 203378081 U CN203378081 U CN 203378081U CN 201320452784 U CN201320452784 U CN 201320452784U CN 203378081 U CN203378081 U CN 203378081U
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- plate
- graphite
- electrode
- radiation source
- electrode column
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- 230000005855 radiation Effects 0.000 title claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 35
- 239000010439 graphite Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005457 Black-body radiation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
本实用新型属于热学计量领域，具体公开了一种石墨平板辐射源，它包括石墨平板，石墨平板两端后方分别固定设有加热电极，加热电极为板状；所述的石墨平板两端前方设有压板，下方设有电极柱，所述的压板位于电极柱上方。采用石墨加工成平板作为热源，产生辐射能量的上限较高，在校准热流传感器时能够提供辐射面积较大的辐射面，提供稳定、均匀、快速的辐射能量输出，加热电极压板结构将加热电极压紧，压紧板下方设计的电极柱结构，在电极柱和压板之间安装弹簧结构，有效抵消了在加热时石墨平板在水平方向上的热胀冷缩形成的应力。
The utility model belongs to the field of thermal measurement, and specifically discloses a graphite plate radiation source, which comprises a graphite plate, heating electrodes are respectively fixed behind two ends of the graphite plate, and the heating electrodes are plate-shaped; There is a pressing plate, and an electrode column is arranged below, and the pressing plate is located above the electrode column. Graphite is processed into a flat plate as the heat source, and the upper limit of radiant energy is relatively high. When calibrating the heat flow sensor, it can provide a radiant surface with a large radiation area, and provide stable, uniform, and fast radiant energy output. The heating electrode pressure plate structure will heat the electrode pressure. Tight, the electrode column structure is designed under the compression plate, and the spring structure is installed between the electrode column and the pressure plate, which effectively offsets the stress caused by the thermal expansion and contraction of the graphite plate in the horizontal direction during heating.
Description
Technical field
The utility model belongs to the heat measurement field, is specifically related to a kind of dull and stereotyped radiation source.
Background technology
In the development of the heat protection design of manned spaceship and retrievable satellite etc., test and in-flight, and the industry such as fire-fighting of civil area, the energy, building energy conservation, a large amount of radiant heat flux transducers all can be used.Accurate in order to ensure these radiant heat flux sensor measurement values, must set up corresponding hot-fluid standard and standard set-up, wherein topmost device is for providing the radiation source of stable, uniform thermal radiation energy.
Usually, the calibration radiation heat flow transducer adopts the calibrated radiation source method, is exactly to using black matrix as the radiant heat flux standard, and its principle is according to blackbody radiation law, by theory, calculates the radiant heat flow valuve is traced to the source to the temperature value of radiation source.But, for measuring range higher than 150W/cm
2the radiant heat flux transducer of large hot-fluid, be subject to the restriction (3500K left and right) of the blackbody temperature upper limit, the standard emittance that black matrix can provide at present can't meet the demands, simultaneously, heat flow transducer is positioned in black matrix, calibration result is placed the degree of depth, angular coefficient etc. to be affected greatlyr, is unfavorable for the calibration of heat flow transducer.
Summary of the invention
The purpose of this utility model is to provide a kind of graphite dull and stereotyped radiation source, and it can provide calibration use the thermal radiation energy for the standard heat flow transducer with by the school heat flow transducer, provides stable, evenly, emittance is exported fast.
The technical solution of the utility model is as follows:
The dull and stereotyped radiation source of a kind of graphite, it comprises the graphite flat board, at rear, the dull and stereotyped two ends of described graphite, is fixed with respectively heating electrode, described heating electrode is tabular; The place ahead, the dull and stereotyped two ends of described graphite is provided with pressing plate 5, and below is provided with electrode column, and described pressing plate is positioned at the electrode column top.
In the dull and stereotyped radiation source of above-mentioned a kind of graphite: described electrode column is that upper end is processed with step, placing graphite flat board on the end face of the top, and pressing plate is positioned on the step of electrode column.
In the dull and stereotyped radiation source of above-mentioned a kind of graphite: between described pressing plate and electrode column, be provided with spring.
In the dull and stereotyped radiation source of above-mentioned a kind of graphite: described heating electrode is provided with cooling water nozzle.
In the dull and stereotyped radiation source of above-mentioned a kind of graphite: also comprise two bases, each heating electrode and electrode column all are positioned on a base.
The beneficial effects of the utility model are: adopt machining graphite to become dull and stereotyped as thermal source, the upper limit that produces emittance is higher, when the calibration heat flow transducer, can provide the radiating surface that swept area is larger, provide stable, evenly, emittance output fast.
The heating electrode pressure plate structure compresses heating electrode, the electrode column structure of pressure strip below design, and mounting spring structure between electrode column and pressing plate, effectively offset the graphite flat board stress that expands with heat and contract with cold and form in the horizontal direction when heating.
Design cooling water nozzle on heating electrode, form water cooled electrode, effectively protected electrode, prevent that electrode temperature is too high damaged.
The accompanying drawing explanation
Fig. 1 is the dull and stereotyped radiation source schematic diagram of graphite of the present utility model;
Fig. 2 is Fig. 1 end view;
In figure: 1. cooling water nozzle; 2. graphite flat board; 3. bolt; 4. electrode column; 5. pressing plate; 6 springs; 7 bases; 8. step; 9. heating electrode.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, base 7 is two, difference installing electrodes post 4 on each base 7, described each electrode column 4 upper end are processed with step 8, placing graphite flat board 2 on the end face of the top, pressing plate 5 is installed respectively at the two ends of this graphite flat board 2, each pressing plate 5 is positioned on the step of electrode column 4, for compressing graphite flat board 2, owing between above-mentioned pressing plate 5 and electrode column 4, spring 6 being installed, because spring 6 is flexible, therefore compensated graphite flat board 2 stress that expands with heat and contract with cold and form in the horizontal direction.
Be bolted heating electrode 9 is installed at the rear, two ends of graphite flat board 2, each heating electrode 9 is fixed on base 7, and is processed with cooling water nozzle 1 on heating electrode 9, on heating electrode 9, forming water cooling, the temperature of electrode 9 while effectively reducing heating, prevent that high temperature from damaging.
The graphite panel size 650mm * 150mm used in the present embodiment, surface uniform, densification.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320452784.2U CN203378081U (en) | 2013-07-26 | 2013-07-26 | Graphite-flat radiation source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320452784.2U CN203378081U (en) | 2013-07-26 | 2013-07-26 | Graphite-flat radiation source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203378081U true CN203378081U (en) | 2014-01-01 |
Family
ID=49840581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320452784.2U Expired - Lifetime CN203378081U (en) | 2013-07-26 | 2013-07-26 | Graphite-flat radiation source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203378081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111269A (en) * | 2014-06-24 | 2014-10-22 | 中国电子科技集团公司第四十八研究所 | Thermal sensor calibration apparatus used under high temperature large thermal environment |
| CN104155005A (en) * | 2014-08-21 | 2014-11-19 | 中国航空工业集团公司北京长城计量测试技术研究所 | Comparison method radiant heat-flow meter calibration apparatus |
| CN108121128A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of novel high speed water-cooling shutter |
-
2013
- 2013-07-26 CN CN201320452784.2U patent/CN203378081U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111269A (en) * | 2014-06-24 | 2014-10-22 | 中国电子科技集团公司第四十八研究所 | Thermal sensor calibration apparatus used under high temperature large thermal environment |
| CN104155005A (en) * | 2014-08-21 | 2014-11-19 | 中国航空工业集团公司北京长城计量测试技术研究所 | Comparison method radiant heat-flow meter calibration apparatus |
| CN104155005B (en) * | 2014-08-21 | 2017-02-15 | 中国航空工业集团公司北京长城计量测试技术研究所 | Comparison method radiant heat-flow meter calibration apparatus |
| CN108121128A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of novel high speed water-cooling shutter |
| CN108121128B (en) * | 2016-11-30 | 2023-07-11 | 北京航天计量测试技术研究所 | A new high-speed water-cooled shutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
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| CX01 | Expiry of patent term |