CN210294124U - Electric heating device for thermal protection performance tester - Google Patents
Electric heating device for thermal protection performance tester Download PDFInfo
- Publication number
- CN210294124U CN210294124U CN201920919878.3U CN201920919878U CN210294124U CN 210294124 U CN210294124 U CN 210294124U CN 201920919878 U CN201920919878 U CN 201920919878U CN 210294124 U CN210294124 U CN 210294124U
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- protection performance
- performance tester
- thermal protection
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Abstract
The utility model discloses an electric heater unit for thermal protection performance tester mainly relates to thermal protection performance tester technical improvement field. Including the sphere shell, the sphere intracavity of sphere shell is equipped with multilayer annular electrothermal tube, the sphere shell passes through the hack lever and sets up the inner chamber at the hot plate, the inner chamber top of hot plate is equipped with the protection casing. The height of the circle center of the spherical surface of the spherical shell is higher than the height of the plane where the sample rack plate is located. Each annular electric heating tube is independently controlled by a separate circuit switch. The peripheral annular array of hot plate sets up a plurality of fireheads, the firehead crosses fiery through-hole direction towards the sample on the sample frame plate. The heat insulation protection plate is arranged between the sample frame plate and the protection cover. The beneficial effects of the utility model reside in that: the distance between the heat insulation protection plate and the protection cover plate can be controlled to control the effective heated heat source area of the heat insulation protection plate, and therefore the heat protection performance test of the heat source with the same area can be carried out according to the size and the area of the sample.
Description
Technical Field
The utility model relates to a thermal protection performance tester technical improvement field specifically is electric heat device for thermal protection performance tester.
Background
The thermal protection performance tester on the market is the technology with application number 201610072328.3. Through the research of purchasing a prototype, the electric heating pipe on the heating plate in the technology is in a long tubular shape and is flatly paved in the inner cavity of the heating plate, and the test of the thermal protection performance of a heat source with equal area can not be carried out according to the size and the area of a sample, because the effective heated heat source area of the thermal insulation protection plate can not be controlled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hot protective properties for tester electric heater unit, it can provide the distance between control thermal-insulated guard plate and the protection casing cover plate and control the thermal source area that the thermal-insulated guard plate is effectively heated, and then guarantees to carry out the thermal protective properties test of area heat source such as according to size, the area of sample.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
the electrothermal device for the thermal protection performance tester comprises a spherical shell, wherein a plurality of layers of annular electrothermal tubes are arranged in a spherical cavity of the spherical shell, the spherical shell is arranged in an inner cavity of a heating plate through a rack rod, and a protective cover is arranged at the top of the inner cavity of the heating plate.
The height of the circle center of the spherical surface of the spherical shell is higher than the height of the plane where the sample rack plate is located.
Each annular electric heating tube is independently controlled by a separate circuit switch.
The peripheral annular array of hot plate sets up a plurality of fireheads, the firehead crosses fiery through-hole direction towards the sample on the sample frame plate.
The height-adjustable heat insulation protection plate is arranged between the sample rack plate and the protection cover.
Contrast prior art, the beneficial effects of the utility model reside in that:
the multilayer annular electric heating tube of the device is arranged on the inner shell surface of the spherical shell. After the multi-layer annular electric heating tube is electrified, most of heat radiation of the multi-layer annular electric heating tube is concentrated to the sphere center of the spherical shell for diffusion and collection, the spherical shell is similar to a concave mirror, and light radiation emitted by the mirror surface of the concave mirror can be emitted along the radius direction of the spherical surface, namely the sphere center of the spherical shell is diffused and collected. Therefore, the distance between the heat insulation protection plate and the protection cover plate can be controlled to control the effective heated heat source area of the heat insulation protection plate, the area of the effective heated heat source area is smaller when the heat insulation protection plate is closer to the sphere center, and the heat protection performance test of the heat source with the same area can be carried out according to the size and the area of the sample.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the heating plate of the present invention arranged behind the inner cavity of the heating plate.
Figure 3 is a using state diagram of the heat insulation protective plate when the heat insulation protective plate is close to the protective cover.
Figure 4 is a using state diagram of the protective cover when the protective cover is far away from the middle heat insulation protective plate.
Fig. 5 is a technical schematic diagram of the utility model patent application No. 201610072328.3.
Reference numerals shown in the drawings:
1. a spherical shell; 2. an annular electric heating tube; 3. a frame bar; 4. heating plates; 5. a protective cover; 6. a fire head; 7. a heat insulation protection plate; 8. a sample holder plate.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
Electric heat device for thermal protection performance tester, major structure include spherical shell 1, spherical shell 1's sphere intracavity is equipped with multilayer annular electrothermal tube 2, spherical shell 1 sets up the inner chamber at hot plate 4 through hack lever 3, the inner chamber top of hot plate 4 is equipped with protection casing 5. As shown in the attached figure 3 or figure 4 of the specification, the spherical center O point of the spherical surface on which the spherical shell 1 is arranged is higher than the plane height on which the sample rack plate 8 is arranged. Each annular electrothermal tube 2 is independently controlled by a separate circuit switch. The peripheral annular array of hot plate 4 sets up a plurality of fireheads 6, fireheads 6 pass the fire through-hole direction towards the sample on the sample frame plate 8. The heat insulation protection plate 7 is arranged between the sample rack plate 8 and the protective cover 5 in a height-adjustable manner.
Principle explanation:
the detailed explanation is made by combining the drawings of the specification with fig. 3 and 4, and the distance (a1) between the heat protection plate 7 and the shield plate 5 in fig. 3 of the specification is smaller than the distance (a2) between the heat protection plate 7 and the shield plate 5 in fig. 4 of the specification.
The improved multilayer annular electrothermal tube 2 is arranged on the inner shell surface of the spherical shell 1. After the multi-layer annular electric heating tube 2 is electrified, most of heat radiation is concentrated to the point O of the sphere center of the spherical shell 1 for diffusion and collection, the design principle of the spherical shell 1 is similar to that of a concave mirror, and the light radiation emitted by the mirror surface of the concave mirror is emitted along the radius direction of the sphere, namely the sphere center of the spherical shell 1 is diffused and collected. Therefore, the distance between the heat insulation protection plate 7 and the shield plate of the protective cover 5 can be controlled to control the effective heating source area of the heat insulation protection plate 7, the area of the effective heating source area closer to the sphere center is smaller, and the heat protection performance test of the heat source with the same area can be carried out according to the size and the area of a sample. That is, since a1 is smaller than a2, the effective heated heat source area S1 is larger than the effective heated heat source area S2 in the drawings of fig. 3 and 4.
The technology is advanced improvement of the product in the prior art, has good market value, and the company hopes that the examiner can search and approve as soon as possible to promote and sell the product as soon as possible.
Claims (5)
1. Thermal protection performance tester, its characterized in that: including sphere shell (1), the sphere intracavity of sphere shell (1) is equipped with multilayer annular electrothermal tube (2), sphere shell (1) sets up the inner chamber at hot plate (4) through hack lever (3), the inner chamber top of hot plate (4) is equipped with protection casing (5).
2. The thermal protection performance tester of claim 1, wherein: the circle center height of the spherical surface where the spherical shell (1) is located is higher than the plane height where the sample rack plate (8) is located.
3. The thermal protection performance tester of claim 1, wherein: each annular electric heating tube (2) is independently controlled by a separate circuit switch.
4. The thermal protection performance tester of claim 1, wherein: the peripheral annular array of hot plate (4) sets up a plurality of fires (6), fire through-hole direction is crossed to the sample on fire (6) towards sample frame plate (8).
5. The thermal protection performance tester of claim 2, wherein: the heat insulation protection plate (7) is arranged between the sample rack plate (8) and the protection cover (5) in a height-adjustable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920919878.3U CN210294124U (en) | 2019-06-18 | 2019-06-18 | Electric heating device for thermal protection performance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920919878.3U CN210294124U (en) | 2019-06-18 | 2019-06-18 | Electric heating device for thermal protection performance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210294124U true CN210294124U (en) | 2020-04-10 |
Family
ID=70097368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920919878.3U Expired - Fee Related CN210294124U (en) | 2019-06-18 | 2019-06-18 | Electric heating device for thermal protection performance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210294124U (en) |
-
2019
- 2019-06-18 CN CN201920919878.3U patent/CN210294124U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 Termination date: 20210618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |