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Gas and dust explosion characteristic testing device

A characteristic testing and gas technology, applied in measuring devices, fuel testing, instruments, etc., can solve the problems of not being suitable for field tests, unable to monitor temperature changes, not installing temperature sensors, etc., achieving good portability, easy maintenance, and portability. Effect

Inactive Publication Date: 2019-04-02
SHANGHAI RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) There must be an ignition source of sufficient energy
(5) The dust cloud should be in a limited space
On the one hand, the above-mentioned device is not equipped with a temperature sensor, so it cannot monitor the temperature change in the process of gas (or steam) or dust explosion in real time
On the other hand, since the explosive tank needs to be evacuated before the test, a vacuum pump is required for operation, so it is not suitable for field tests

Method used

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  • Gas and dust explosion characteristic testing device
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A gas (or vapor) or dust explosion characteristic test device is adopted, the structure of which is as follows: figure 1 As shown, the test device includes an explosion cavity 9, which is a closed space formed by a top cover 7, a cavity shell 10 and a moving piston 4, and the explosion cavity 9 is supported by a support 8, so The above-mentioned top cover 7 is equipped with a temperature sensor 5 and a pressure sensor 6, the support 3 and the spring-type push-pull rod 13 are connected under the described moving piston 4, and the moving piston 4 promoted by the spring-type push-pull rod 13 moves in the explosion chamber 9 , the moving range is controlled by the upper limiter 11 and the lower limiter 12, and the moving piston 4 is also provided with an electric ignition device 2 and a solenoid valve sampling system 1.

[0028] When performing a gas (or vapor) or dust test, adjust the spring push-pull rod 13, move the piston 4 to the corresponding position, form a negative...

Embodiment 2

[0031] A gas (or vapor) or dust explosion characteristic testing device is adopted, the structure of which is as follows: figure 2 As shown, the structure is the same as that of Embodiment 1, the difference is that figure 2The device shown in is the structure diagram of the device before the explosion reaction occurs. When the explosion occurs, the gas in the reaction chamber expands and the pressure rises to form figure 1 situation. The pressure state in the reaction chamber can be obtained intuitively by observing the position of the moving piston.

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Abstract

The invention relates to a gas and dust explosion characteristic testing device. The gas comprises a combustible gas and a vapor. The testing device comprises an explosion chamber (9); the explosion chamber (9) is a closed space formed by a top cover (7), a chamber shell (10) and a moving piston (4); the explosion chamber (9) is supported by a support base (8); a temperature sensor (5) and a pressure sensor (6) are mounted on the top cover (7); a bracket (3) and a spring-type push-pull rod (13) are connected below the moving piston (4); the moving range is controlled by an upper limiter (11) and a lower limiter (12); the moving piston (4) is further provided with an electric ignition device (2) and a solenoid valve injection system (1). Compared with the prior art, the gas and dust explosion characteristic testing device has the advantages of safety and reliability, variable equipment combination and easy disassembly, and the effects of observation of gas (or vapor) and dust combustionand the explosive performance thereof.

Description

technical field [0001] The invention relates to a combustion and explosive simulation demonstration device, in particular to a device for testing the combustion and explosion characteristics of gas (or steam) and dust by using an electric push-pull rod to control the pressure in a reaction chamber. Background technique [0002] Combustible gas (or steam) and dust explosions are important forms of industrial explosion disasters. In real life, in many cases, combustible gas (or steam), dust and air mix and reach a certain concentration. If there is a fire source at this time, it can cause an explosion disaster. There are many common flammable gas (or steam) and dust explosion disasters, such as rupture of gas pipelines; leakage of liquefied natural gas; gas and coal powder explosions; dust explosions of agricultural products such as grain and feed; metal explosions in metallurgical systems, etc. Human research on gas explosions began after the explosion of a gas pipeline in E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/22G09B23/24
CPCG01N33/227G09B23/24
Inventor 秦文静范宾刘嘉伟张小沁蔡晨仁陈倩曾国良周健肖秋平
Owner SHANGHAI RES INST OF CHEM IND
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