Device for rapid assessment of cook-off response degree of solid propellant

A solid propellant and high-level technology, which is applied in the direction of chemical analysis by means of combustion, can solve the problems of high cost, complicated tooling, and large amount of charge, and achieve the effect of low cost, large amount of charge, and simple installation

Inactive Publication Date: 2019-04-19
HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, such as large powder charge, complicated tooling, high cost, and qualitative judgment errors, ...

Method used

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  • Device for rapid assessment of cook-off response degree of solid propellant
  • Device for rapid assessment of cook-off response degree of solid propellant
  • Device for rapid assessment of cook-off response degree of solid propellant

Examples

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Embodiment 1

[0019] see figure 1 , a device for quickly evaluating the cook-off response of solid propellants, comprising a fixed frame 1, an explosion chamber 2 is provided at the bottom of the fixed frame, and a sample groove 21 is provided in the middle of the explosion chamber, and the sample groove The mouth is sealed by the top column 3, the top column is provided with a pressure sensor 4, the pressure sensor is connected to the signal conditioner 5, the signal conditioner is connected to the data collector 6, and the outside of the explosion chamber is wrapped and heated Cover 7, the heating jacket is connected with temperature program controller 8.

[0020] In this embodiment, the explosion chamber 2 consists of 45 # Machined from steel, the top column 3 is made of 45 # Steel is machined.

[0021] In this embodiment, a temperature sensor is provided between the explosion chamber and the heating jacket, and the temperature sensor is connected to the temperature program controller...

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Abstract

The invention relates to a device for rapid assessment of a cook-off response degree of a solid propellant. The device comprises a fixing frame, the bottom of the fixing frame is provided with an explosion chamber, the middle of the explosion chamber is provided with a sample cell, an opening of the sample cell is sealed by a top column, and a pressure sensor is arranged on the top column and connected with a signal conditioner in connection with a data collector. The explosion chamber is externally wrapped by a heating sleeve which is connected with a temperature programming controller. The cook-off response degree can be quickly and quantitatively assessed under a condition of low sample consumption, and the device is simple in structure, low in cost and convenient and simple in operation.

Description

technical field [0001] The invention relates to the technical field of applying a thermal method to test energetic materials, in particular to a device for rapidly evaluating the cook-off response degree of a solid propellant. Background technique [0002] The solid propellant may burn, explode or even detonate in the cook-off process, causing huge economic losses and personal casualties. The response degree of the solid propellant during the cook-off process is one of the important indicators for evaluating its safety performance. The solid propellant cook-off response degree refers to the size of the destructive effect of the solid propellant response at a certain heating rate, which characterizes the sensitivity of the solid propellant to thermal stimulation. [0003] At present, standard specimens are mostly used to test the degree of cook-off response of solid propellants in China. However, because the charge is too small and the heat accumulation in the propellant is w...

Claims

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Application Information

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IPC IPC(8): G01N31/12
CPCG01N31/12
Inventor 胡大双赵孝彬李军肖旭张杰凡
Owner HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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