Vacuum thermal insulation heating apparatus
A heating device and vacuum insulation technology, applied in lighting and heating equipment, bell-type furnaces, furnaces, etc., can solve problems such as rising and difficult temperature of heat conductors
Active Publication Date: 2009-05-27
HISENSE HOME APPLIANCES GRP CO LTD +1
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Problems solved by technology
[0003] Due to the need to achieve a high temperature of 600~800°C on a narrow sample holder, it is difficult to achieve under normal conditions, because air convection has a great influence on the heat conductor under high temperature conditions, making it difficult for the temperature of the heat conductor to rise to 600 High temperature of ~800℃
Experiments have proved that: under atmospheric conditions, heating the sample on the sample rack is limited by the power of the heating block. When it is heated to about 300°C, the temperature can no longer continue to rise
Method used
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[0023] The vacuum adiabatic heating device of the present invention will be further described below in conjunction with the drawings and specific embodiments.
[0024] as attached figure 1 As shown, the vacuum insulation heating device utilizes vacuum insulation technology, that is, a vacuum-tight space is formed in the outer cover of the device (including the upper cover body 8, the base 1 and the lower cover body 2), and the interface 16 ( figure 2 Shown) is connected with mechanical vacuum pump 17, it is vacuumized, can reach 10 in the vacuum airtight space -4 The vacuum degree around Pa minimizes the air convection loss. In order to facilitate the replacement of samples on the sample rack 9, the outer cover system is designed as an upper cover body 8 and a lower cover body 2 of stainless steel structure that can be assembled and disassembled, and a metal seal is adopted, that is, a copper metal sealing ring 6 is designed in the middle; 1 is provided with a stainless ste...
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The invention discloses a vacuum insulation heating device for providing local high-temperature environment 600 to 800 DEG C when high-energy particles bombard target (sample). The device comprises an upper cover, a lower cover and a vacuum closed space formed in a base, wherein the vacuum closed space is provided with a heating block connected with a power supply, a heat conducting bar is arranged on the heating block and connected with a sample rack for placing the sample. In the process of transferring heat from a heat source to an objective area, convection heat transfer losses and radiation heat transfer losses can be generated greatly if contacting with the air. The device is designed by utilizing vacuum insulation technology which can effectively reduce convection heat transfer losses.
Description
technical field [0001] The invention relates to a heating device for raising the temperature of a sample to 600-800 DEG C, which is suitable for occasions where high-energy particles are used to bombard a shooting range (sample) in physics research to produce a certain effect. Background technique [0002] In the research of microphysics such as quantum physics, a special environment is often required to make the particles emitted by the particle emission instrument hit the sample, and the high temperature vacuum environment is one of them. By searching the prior art, it is found that there is no technical introduction about the heating device specially used in the high-temperature environment required by the high-energy particle bombardment range (sample). [0003] Due to the need to achieve a high temperature of 600~800°C on a narrow sample holder, it is difficult to achieve under normal conditions, because air convection has a great influence on the heat conductor under h...
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IPC IPC(8): G01N1/44F27B11/00
Inventor 申晓亮张罡杨晓丽张双平曾耀坚
Owner HISENSE HOME APPLIANCES GRP CO LTD