A boron particle laser ignition combustion experimental device and experimental method

An experimental device, laser ignition technology, applied in measuring devices, chemical analysis by combustion, material analysis by optical means, etc., can solve problems such as large particle size, inability to accurately measure ignition delay period, weak flame brightness, etc., to achieve The effect of simple structure and fast and convenient experimental method
CN110333317BActive Publication Date: 2022-03-25NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHWESTERN POLYTECHNICAL UNIV
Publication Date
2022-03-25

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Abstract

The invention discloses a boron particle laser ignition combustion experimental device and an experimental method, and relates to the technical field of solid motor experiments. Place the experimental device and high-speed camera in the calibration position. The experimental device uses the electromagnet of the automatic drug delivery mechanism to cooperate with the drug-containing funnel. The boron particles in the drug-containing funnel are controlled by the external voltage signal to be in a discrete state and fall evenly according to the predetermined time. The boron particles in the electromagnet contraction of the drug feeding mechanism fall from the funnel and Through the laser beam, the boron particles can be ignited under the condition that the boron particles are fully in contact with the atmosphere during the movement, and the high-speed camera is turned on to start collecting images, so as to ensure the synchronization of the boron particle laser ignition and the high-speed camera image acquisition process. The structure of the experimental device is simple and reliable, and the experimental method is fast and convenient. It can realize the laser ignition and combustion of boron particles in the state of sufficient contact with the atmosphere during motion, as well as the collection and recording of image information during the entire experimental process.
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Description

technical field

[0001] The invention relates to the technical field of solid rocket motor experiments, in particular to a boron particle laser ignition combustion experiment device and an experiment method. Background technique

[0002] At present, the ignition methods used to study the ignition and combustion performance of boron particles mainly include shock tube ignition, flat flame burner ignition, Bunsen furnace ignition, laser generator ignition, etc. Among them, laser ignition has high ignition temperature and fast heating rate. , good stability, strong anti-interference ability, and high safety are widely used. However, the boron ignition combustion experimental device using the laser ignition method generally adopts the method of statically stacking boron particles and then igniting. This ignition method will lead to The problem of uneven contact between boron particles and the surrounding atmosphere and the stacking of multiple particles.

[0003] Invention paten...

Claims

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