Cloud detonation capability measuring method

Abstract

The invention discloses a cloud detonation capability measuring method, which mainly utilizes a test system consisting of a visual cloud detonation tube, a pressure sensor, a temperature sensor, a pressure signal conditioner, a temperature signal conditioner, a data collector, a high-frequency signal line and the like to measure shock wave pressure and explosion temperature during cloud detonation, and a high-speed photographic instrument can be used for carrying out whole-process observation on the cloud detonation process, so that characterization and evaluation of the cloud detonation performance are realized. The cloud detonation capability measuring method provided by the invention is suitable for multiphase cloud detonation capability measurement, technical support can be provided for multiphase fuel cloud detonation performance evaluation, and the test system has the characteristics of visualization, flexible and convenient operation, low economic cost and the like.

Description

technical field [0001] The application belongs to the technical field of cloud and fog detonation performance testing, and relates to a method for measuring cloud and fog detonation performance, which can be used for gas-liquid phase cloud and fog detonation process observation and parameter measurement. Background technique [0002] Fuel-air explosive (FAE), as a new explosive energy source, has attracted widespread attention and development from all over the world because of its large damage area and high damage efficiency. Fuel air explosive is a heterogeneous explosive mixture composed of volatile liquid hydrocarbons or solid powdery combustibles as fuel and oxygen in the air as oxidant. When it is used, it is under the action of a fuze and a center throwing charge explosion. The fuel is thrown into the surrounding air, and the fuel spreads rapidly and mixes with the air to form an explosive cloud, and then the cloud is detonated by the secondary fuze to realize the deto...

AI Technical Summary

Problems solved by technology

The cloud detonation tube test has the characteristics of many parameter measurements, low test cost, reusable equipment, and the ability to conduct tests in the laboratory. However, in order to meet certain detonation pressure requirements, the detonation tube body is mostly designed with steel pipe processing. Sometimes a plexiglass window is also designed on the detonation tube body, but in order to ensure the compressive strength of the cloud detonation tube, the area of ​​the plexiglass window is very small, which can only be used for cloud particle size measurement or explosion temperature measurement, and cannot be used for cloud and fog Image observation of detonation transfer process

The actual charge throwing static explosion test is generally carried out in an open explosion test field, and high-speed photography can be used for shooting and observation of the whole process of fuel throwing, cloud and fog diffusion, cloud and fog detonation, etc., but the economic cost of the test is high, the test workload is large, and the efficiency is low. Low

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