Equipment used for measuring high-pressure burning characteristic parameters of solid propellant and with observation window

Abstract

The invention discloses equipment used for measuring high-pressure burning characteristic parameters of solid propellant and with an observation window. The equipment comprises a high-pressure air bottle group, a pressure reducing valve, an electronic flowmeter, an igniter, a high-pressure burning chamber with the observation window, a buffer tank, a back pressure valve, a high-speed camera, an optical filter, a digital display panel, a data collection module and a computer. The high-pressure burning chamber with the observation window further comprises a shell, the observation window, a temperature sensor and a pressure sensor. Compared with the prior art, the equipment has the advantages that change of parameters such as burning speed, burning temperature and highest burning temperatureof the solid propellant under the constant pressure can be measured synchronously, the morphological characteristics of burning flame are acquired in real time, the influence of pressure on the burning process is confirmed, and the experimental support is provided for research of a high-pressure burning mechanism of the solid propellant.

Description

technical field [0001] The invention relates to the field of measurement of combustion characteristic parameters of solid propellants, in particular to a measurement device for high-pressure combustion characteristic parameters of solid propellants with an observation window. Background technique [0002] The currently commonly used solid propellant velocity measurement methods mainly include the closed blaster test method and the target line test method, and the specific steps are described in "GJB / J 3345-1998 Test System Verification Regulations for Propellant Sealed Bursts" and "GJB 770A-97- 706 Burning Rate Target Line Method". The former process the measured pressure-time data to calculate the burning rate of the agent under different pressures. However, due to the influence of the calculation method and high-temperature and high-pressure gas, the calculation results often need to be corrected, which increases the difficulty of the measurement process. , reducing data ...

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Problems solved by technology

[0005] The present invention aims at the problems of unintuitive, low precision and low reliability of the burning rate measurement results in the solid propellant combustion process

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