Gunpowder ignition temperature measuring device

Abstract

The invention discloses a gunpowder ignition temperature measuring device. The device comprises a burner, an automatic temperature control heating device, a temperature measuring unit, a pressure measuring unit, a stirring device and a computer, wherein the burner consists of a burner body and a burner top cover; the burner body or the burner top cover is provided with a pressure measuring hole and the pressure measuring unit is inserted into the inside of the burner body through the pressure measuring hole; a heating medium is arranged in the automatic temperature control heating device; theburner body is immersed into the heating medium; the temperature of the heating medium is controlled by the automatic temperature control heating device; the temperature measuring unit is inserted into the heating medium in a heating bath to measure the temperature; a pressure intensity signal measured by the pressure measuring unit and a temperature signal tested by the temperature measuring unit are transmitted to the computer; and the stirring device is inserted into the heating medium. The device can safely and correctly measure a propellant ignition temperature and has a simple structure, stable and reliable performance and wide application prospect in practical application.

Description

technical field [0001] The invention relates to a temperature measuring device, which is mainly used for measuring the ignition temperature of propellants, explosives, explosives and related products. Background technique [0002] The "heating rate method such as ignition point" used in the prior art is a method for measuring the stability of gunpowder, explosives, pyrotechnic agents, nitrocellulose and their products. The explosion temperature measuring device used in this method is mainly composed of the following parts: Heating bath 1, test tube 2, rubber stopper 3, auxiliary thermometer 4, main thermometer 5, heater 6, heating medium 7, electromagnetic stirrer 8 and heater 9. When using the above device for experiments, crush the sample to a specified size, weigh a quantitative sample (0.1g to 0.3g according to the nature of the sample) and place it in a special test tube (heat-resistant hard glass test tube), and cover it with a rubber stopper. On the test tube mouth; ...

AI Technical Summary

Problems solved by technology

[0003] However, there are still some problems in the existing technology: heat-resistant hard glass test tubes are used in the experiment. Since the samples are all explosives, the test tubes are sometimes exploded.

In the prior art, the ignition criterion is the deflagration of the sample, and this criterion needs to be obtained by the tester through observation, and then read the temperature indicated by the thermometer. As a result, the emergence time of the criterion is not clear enough, and it is easy to introduce subjective error

The temperature of the ignition point is generally above 200°C, and the operator is in close contact with a temperature source above 200°C, which is unsafe and not conducive to the health of the operator.

With the popularization and application of computer acquisition and storage, the existing technology mainly relies on manual records. Once there is doubt about the experimental results, there is no way to verify them.

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