Boron particle burning observing device for realizing ignition by utilizing high-pressure xenon lamp
A high-pressure xenon lamp and observation device technology, applied in the direction of material thermal development, can solve the problems of unsatisfactory requirements, large fuel interference, and low ignition temperature of flat flame burners, so as to improve heating rate and energy utilization rate and ensure safety Sexy, responsive effects
Active Publication Date: 2014-06-25
ZHEJIANG UNIV
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Problems solved by technology
The ignition of high-temperature tube furnaces and electric furnaces is not convenient for the observation of combustion phenomena; the ignition temperature of flat-flame burners is low, and the atmosphere interferes greatly with the fuel; laser ignition is difficult to achieve a high-pressure closed environment, which cannot meet the requirements
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[0027] The invention patent is a new boron particle ignition technology. Using a high-power xenon lamp as a light source, the concave mirror reflects and focuses the heat to heat the fuel placed in the high-pressure reaction furnace, and through the quartz glass window on the surface of the furnace body, combined with various instruments to observe, measure and analyze the ignition and combustion process.
[0028] Below in conjunction with accompanying drawing and example the patent of the present invention is further described.
[0029] The observation device is composed of heating system, reaction furnace, cooling system and testing system. Wherein the heating system is composed of a power supply 4 , a xenon lamp 1 , a reflector 2 and a support 6 . After the 220V alternating current is rectified by seven parallel-connected 1KW direct current power supply modules, the xenon lamp 1 is triggered and ignited by the trigger. The xenon lamp 1 has a maximum power of 7KW and a min...
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The invention relates to a burning test device, and aims at providing a boron particle burning observing device for realizing the ignition by utilizing a high-pressure xenon lamp. The device comprises a reaction furnace for burning the boron particles, wherein a support is arranged inside the reaction furnace; and the device also comprises a high-pressure xenon lamp with a spheroidical total reflection lens, wherein a light source is located in one focus point of the spheroidical total reflection lens, and a placing point of a sample is located in the other focus point of the spheroidical total reflection lens; and the reaction furnace is completely closed, a quartz glass window is arranged on a furnace body between the support and the high-pressure xenon lamp, and the furnace body is also provided with the quartz glass window for observation. Due to the adoption of the device, the ignition and the observation of fuel in a high-pressure closed environment can be realized, and the highest ignition temperature far exceeds that by utilizing an electric heating way; the problem for stopping the infrared waveband by utilizing the high-pressure quartz glass is solved, and the heating speed and the energy utilization rate of a sample can be improved; an ignition way is nonrelated to the conductivity of the fuel; an ignition source is isolated from the high-pressure burning environment, so that the safety is guaranteed; and the interference is small, the response is sensitive, and the born particle burning observing device can be used for a substance which is burned instantly.
Description
technical field [0001] The invention relates to a combustion test device, in particular to a device for observing the ignition and combustion of boron particles in a high-pressure environment. Background technique [0002] Because boron has high mass calorific value and volume calorific value, boron-containing fuel-rich propellants have become the preferred fuel for solid rocket ramjet engines. But at the same time, boron has a high melting point and boiling point, which makes it difficult to melt and vaporize. In practical applications, there are problems such as difficulty in ignition, high ignition temperature, and long ignition delay time. Therefore, how to realize the smooth ignition and combustion of boron particles is particularly important. [0003] Existing boron particle ignition methods include high-temperature tubular furnace ignition, electric furnace ignition, flat flame burner ignition and laser ignition, etc., each of which has its own advantages and disadva...
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IPC IPC(8): G01N25/22G01N25/38
Inventor 周俊虎刘建忠汪洋张彦威杨卫娟王智化程军黄镇宇周志军岑可法
Owner ZHEJIANG UNIV