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Explosive heat determination method and explosive heat determination device

A measurement method and explosion heat technology, which can be used in the direction of material explosion and can solve problems such as errors

Inactive Publication Date: 2017-12-01
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The sample charge of this method is very small, and it is mainly suitable for determining the detonation heat of simple explosives. There will be large errors for mixed explosives with uneven density and mixing degree.

Method used

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  • Explosive heat determination method and explosive heat determination device
  • Explosive heat determination method and explosive heat determination device
  • Explosive heat determination method and explosive heat determination device

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Experimental program
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Embodiment Construction

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0019] Open the improved calorimeter bomb, weigh a certain amount of explosives, connect it with the detonator and put it into the bomb body to hang in the air. The lead wire of the detonator is drawn out from the sealing hole in the center of the cover. Put on the cover and tighten the screws, connect the valve to the vacuum pump and then evacuate. When the pressure gauge shows about 667Pa and remains unchanged, it can be considered that the projectile has been evacuated.

[0020] Put the vacuum body on the bracket in the insulation barrel, lead the wires leading out from both ends of the brass strip from the sealing hole on the lid of the insulation barrel, and connect them to the two terminals of the signal input device, turn on the stabi...

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PUM

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Abstract

The invention discloses an explosive heat determination method and an explosive heat determination device which is simple in operation and capable of reading explosive heat data directly. The explosive heat determination device is composed of warming equipment, an improved calorimetric bomb and signal input and output units; the warming equipment is formed by an inner barrel and an outer barrel which are in a vacuum state therebetween, internal heat is lost due to exposure to the outside world can be avoided, and interference to tests by external temperature can be avoided; the main innovation of the improved calorimetric bomb lies in that a thermistor made of brass is embedded in a bomb body forming a circuit loop with the signal input unit, and numerical value of inner-wall temperature of the bomb body is calculated into blasting numerical value through an electronic component which is displayed through the signal output unit.

Description

technical field [0001] The invention relates to the field of performance and explosion effect testing of blasting equipment, in particular to a method and device for measuring the detonation heat of explosives. Background technique [0002] The definition of detonation heat of explosives: the heat released when a certain amount of explosives explode under certain conditions is called detonation heat, and the unit is kJ mol -1 or kJ kg -1 . The heat of detonation is an important parameter to characterize the performance of explosives. Obtaining the real heat of detonation of explosives is very important for improving the performance of explosives and evaluating the quality of explosives. There are constant temperature method and adiabatic method for the experimental determination of detonation heat. The constant temperature method requires extremely high test conditions. During the test, the change of the ambient temperature must not exceed 1°C, and its popularization and a...

Claims

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Application Information

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IPC IPC(8): G01N25/54
CPCG01N25/54
Inventor 朱可可吴红波刘鑫夏曼曼朱帅张洪常仕民
Owner ANHUI UNIV OF SCI & TECH