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Low-temperature gas explosion characteristic test method

A characteristic test and gas explosion technology, which is applied in the field of low temperature gas explosion characteristic test, can solve the problems of lack and inability to realize the research of gas explosion characteristics

Inactive Publication Date: 2016-03-02
CHINA COAL TECH ENG GRP CHONGQING RES INST
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Problems solved by technology

However, there is still a lack of corresponding technical means for the determination of the explosion limit of combustible gases in ultra-low temperature (below 0°C) environments.
At present, although some scientific research institutes in my country have relevant equipment for the research of combustible gas explosion characteristics in high-temperature or high-pressure environments, they cannot realize the research of gas explosion characteristics in low-temperature environments.

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  • Low-temperature gas explosion characteristic test method

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Embodiment Construction

[0023] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.

[0024] A low-temperature gas explosion characteristic test system, including a test tank, a gas distribution system connected to the test tank, a refrigeration system, a measurement system, an ignition system and a monitoring system;

[0025] The test tank is used as a container for the gas explosion characteristic test.

[0026] The test tank includes an outer tank 1, an inner tank 2, a liquid nitrogen interlayer 17 arranged between the inner tank and the outer tank, an ignition port 4, an interlayer pressure port 6, an inner tank exhaust port 7, a burst disc 8, and a flange 9 , interlayer exhaust port 10, interlayer temperature measurement port (11), static pressure p...

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Abstract

The invention provides a low-temperature gas explosion characteristic test method. The method includes the steps that firstly, gas tightness of a test system is checked; secondly, gas distribution and concentration detection are performed; thirdly, ignition energy is sequentially tested from low energy to high energy till gas in a test tank is ignited and exploded. According to the low-temperature gas explosion characteristic test method, mainly the explosion characteristics of combustible gas, the explosion inhibiting performance of filler and explosion venting reliability of a safe device are tested in any low-temperature state, in other words, in the low-temperature state, if a pressure container (such as a rectifying tower) filled with regular filler and rupture disks explodes, whether the regular filler and the rupture disks can effectively inhibit explosion and vent explosion or not is tested, and a rectifying tower body is protected against damage so that casualties can be avoided.

Description

technical field [0001] The invention belongs to the field of safety, and in particular relates to a method for testing the explosion characteristics of low-temperature gas. Background technique [0002] At present, there are no standards at home and abroad on the experimental research on the explosive characteristics of combustible gases in special environments. In my country, there is only the national standard of the People's Republic of China. Method for determination of explosion limit of combustible gas under normal pressure. However, there is still a lack of corresponding technical means for the determination of the explosion limit of combustible gases in ultra-low temperature (below 0°C) environments. At present, although some scientific research institutes in my country have relevant equipment for the study of combustible gas explosion characteristics in high-temperature or high-pressure environments, they cannot realize the research on gas explosion characteristics ...

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Application Information

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IPC IPC(8): G01N33/22
CPCG01N33/227
Inventor 姚成林蔡安宁肖露陈金华甘海龙肖正张斌朱菁王瑜向真才
Owner CHINA COAL TECH ENG GRP CHONGQING RES INST
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