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Unattended vacuum stability experiment testing device, system and method

A technology for vacuum stability and experimental testing, applied in the field of thermal performance detection of explosives for weapons, can solve the problems of high safety risk, manpower consumption, low detection efficiency, etc. Effect

Active Publication Date: 2021-08-24
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an unattended vacuum stability test equipment, system and method to solve the problem that the storage life test period of weapon explosives, especially various high-energy insensitive explosives and heat-resistant explosives in the prior art is not only long, but also And the test itself has the risk of explosion or deflagration. Conventional test methods not only have low detection efficiency, high safety risks and consume a lot of manpower.

Method used

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  • Unattended vacuum stability experiment testing device, system and method
  • Unattended vacuum stability experiment testing device, system and method
  • Unattended vacuum stability experiment testing device, system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0049] see figure 1 , the present embodiment provides an unattended vacuum stability test equipment, the test equipment 1 includes: a temperature control box 11, a heating component 12, a thermal insulation cover assembly 13, a gas pressure sensor 14, a test tube sleeve 16, a reaction Test tube 17, temperature sensor 18, housing 110, soaking block 111.

[0050] The casing 110 is installed on the top of the temperature control box 11, and the heating element 12 is arranged inside the casing 110, and the heating element 12 is a resistance wire in this embodiment. The resistance wire is electrically connected with the temperature control box 11, and the temperature control box is used to control the power of the resistance wire. The soaking block 111 provided in the heating component 12 is made of aluminum. At least one accommodating cavity 15 is provided on the soaking block 111 , and in this embodiment, four accommodating cavities 15 are provided on one soaking block 111 , an...

Embodiment 2

[0054] see image 3 , This embodiment provides an unattended vacuum stability test system, the test system includes: a vacuum pump 2, a tester 3, a host computer 4, and at least one test device 1 as described in Embodiment 1.

[0055] In this embodiment, there are five testing devices 1. The vacuum pump 2 is connected to the three-way pipe fitting through a pipeline, and then vacuumizes the sample in the reaction test tube. The pipeline passes through the insulation cover assembly 13 and enters the accommodating cavity 15 Inside.

[0056] The tester 3 communicates with the gas pressure sensor 14 using a 68-pin dedicated cable, and the temperature sensor 18 communicates through a USB signal line. The upper computer 4 and the tester 3 are connected by a communication line. The upper computer 4 is equipped with testing software and a data analysis module. The tester 3 and the upper computer 4 mainly realize the capture and signal transmission of the reaction test tube air pressu...

Embodiment 3

[0061] This embodiment provides an unattended vacuum stability test method, the test method is based on the test system described in Embodiment 2, the test method includes:

[0062] Step 1: Sample preparation: Place the sample in a vacuum oven for continuous vacuum drying to eliminate the influence of moisture and volatile moisture.

[0063] Step 2: Sample weighing: Weigh the sample according to the experiment, if it is a simple sample, then weigh it directly, if it is a mixed sample, you need to mix the two samples according to a certain ratio.

[0064] Step 3: Sample loading: Place the weighed single sample or mixed sample in the reaction test tube, and then put them together in the reaction sleeve of the test equipment, and assemble the heat preservation cover assembly.

[0065] Step 4: Vacuumize: Vacuumize the reaction test tube containing the sample, and use the test software to automatically detect the airtightness of the internal space of the reactor and the vacuum stat...

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Abstract

The invention discloses an unattended vacuum stability experiment testing device, system and method. The testing device comprises a temperature control box, a housing disposed on the temperature control box, a heating part disposed in the housing and a soaking block disposed in the heating part, and at least one accommodation cavity is disposed on the soaking block. A heat preservation cover body assembly covers the top of the accommodation cavity, a temperature sensor, a gas pressure sensor and a test tube sleeve are located in the accommodation cavity, a through hole for containing a reaction test tube is formed in the middle of the test tube sleeve, the gas pressure sensor is connected with the reaction test tube through a three-way pipe fitting, and the other end of the three-way pipe fitting is connected with a negative pressure pipeline. The temperature control box is electrically connected with the heating part. The testing system comprises a vacuum pump, a tester, an upper computer and the testing device. According to the device, a stability experiment becomes simple and convenient, the safety risk is greatly reduced, and human resources are saved.

Description

technical field [0001] The invention relates to the technical field of thermal property detection of weapon explosives, in particular to an unattended vacuum stability test equipment, system and method. Background technique [0002] The stability and compatibility of explosives are directly related to the safety of storage, transportation and use, and the storage conditions will directly affect the stability and compatibility of explosives. The thermal stability and compatibility of explosives have important practical significance for the manufacture, storage and use of explosives, and it is one of the important properties to evaluate whether explosives can be used normally. Whether in military or civilian use, explosives are required to have good thermal stability and low thermal sensitivity. Therefore, it is particularly important to measure and study the dependence of the thermal stability and compatibility performance of explosives, especially weapon explosives, on temp...

Claims

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Application Information

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IPC IPC(8): F42B35/00G01N33/22
CPCF42B35/00G01N33/22
Inventor 杨菊辉陈捷王晓英鲍延年谢德彭强高书军
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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