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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- graphite
- flat
- electrode
- radiation source
- dull
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Abstract
The utility model discloses a graphite-flat radiation source, belonging to the thermology metering field. The graphite-flat radiation source comprises a graphite flat, wherein a plate-shaped heating electrode is fixedly arranged in the rear of each of the two ends of the graphite flat, a pressure plate is arranged in the front of each end of the graphite flat, an electrode column is arranged in the lower of each end of the graphite flat, and the pressure plate is positioned over the electrode column. The flat prepared by graphite is used as a heat source, the upper limit of radiation energy generated by the heat source is higher, a radiation surface in a larger radiation area can be provided when a hot fluid sensor is calibrated, stable, uniform and rapid radiation energy output is provided, the pressure plates of the heating electrodes tightly press the heating electrodes, the electrode columns are arranged under the pressure plates, a spring structure is installed between the electrode column and the pressure plate, and thus, stress of the graphite flat in the horizontal direction due to expansion with heat and contraction with cold during heating can be effectively offset.
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)
1. the dull and stereotyped radiation source of a graphite, it is characterized in that: it comprises graphite dull and stereotyped (2), at dull and stereotyped (2) rear, two ends of described graphite, is fixed with respectively heating electrode (9), described heating electrode (9) is tabular; Dull and stereotyped (2) the place ahead, two ends of described graphite is provided with pressing plate (5), and below is provided with electrode column (4), and described pressing plate (5) is positioned at electrode column (4) top.
2. the dull and stereotyped radiation source of a kind of graphite as claimed in claim 1, it is characterized in that: described electrode column (4) is processed with step (8) for upper end, placing graphite flat board (2) on the end face of the top, pressing plate (5) is positioned on the step of electrode column (4).
3. the dull and stereotyped radiation source of a kind of graphite as claimed in claim 1, is characterized in that: between described pressing plate (5) and electrode column (4), be provided with spring (6).
4. the dull and stereotyped radiation source of a kind of graphite as claimed in claim 1, it is characterized in that: described heating electrode (9) is provided with cooling water nozzle (1).
5. the dull and stereotyped radiation source of a kind of graphite as described as claim 1～4 any one, it is characterized in that: also comprise two bases (7), each heating electrode (9) and electrode column (4) all are positioned on a base (7).
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 |
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| 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 | Novel high-speed water-cooling 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |