Research method of ultralow temperature gas explosion experiment under ultralow temperature environment

A technology of gas explosion and experimental research, applied in the direction of material explosiveness, etc., can solve the problems of research, lack, and inability to realize the explosion characteristics of combustible gas.

Active Publication Date: 2012-11-21
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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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 flammable gases in ultra-low temperature (below 0°C) environments
At present, although some scientific research institutes in my country have re...

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  • Research method of ultralow temperature gas explosion experiment under ultralow temperature environment

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Embodiment Construction

[0021] 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.

[0022] figure 1 The schematic flow chart of the test method provided by the embodiment of the present invention is shown in the figure: the present invention provides an experimental research method for the explosion characteristics of combustible gas in an ultra-low temperature environment, which includes the following steps:

[0023] S1: Vacuum the explosive tank;

[0024] S2: Fill the explosive tank with the combustible gas to be tested;

[0025] S3: cooling the explosive tank body;

[0026] S4: Before ignition, measure and record the flammable gas concentration, ambient pressure and ambient temperature values ​​in the tank;

[0027] S5: Ignite the combustible gas...

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Abstract

The invention discloses a research method of an ultralow temperature gas explosion experiment under an ultralow temperature environment. The research method comprises the following steps: firstly, vacuumizing an exploding tank; secondly, charging a combustible gas to be detected into the exploding tank and cooling; and finally, igniting the combustible gas to be detected, and acquiring and storing the explosion characteristic parameter data in the exploding tank. The research method has the following advantages: aiming at the research method of the ultralow temperature gas explosion experiment under the ultralow temperature environment, the problem that an ultralow temperature gas explosion experiment method can be carried out under the ultralow temperature environment is mainly solved; and aiming at detecting explosion limit of the combustible gas under the ultralow temperature environment, detection and experiment research work for the parameters of the combustible gas under the ultralow temperature environment, such as exploding pressure and pressure ascent rate and the like. The research method of the ultralow temperature gas explosion experiment under the ultralow temperature environment mainly aims at detecting the explosion limit of coal bed methane under the ultralow temperature environment by a cryogenic liquefying process and detecting the exploding characteristic parameters of other industrial combustible gases under the ultralow temperature environment.

Description

technical field [0001] The invention relates to the field of industrial safety, in particular to an experimental research method that can be directly used in the determination of characteristic parameters such as the explosion limit of combustible gas under ultra-low temperature environmental conditions in the industrial production process. 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 temperature and pressure conditions. However, there is still a lack of corresponding technical means for the determination of the explosion limit of flammable gases in ultra-low temperature (below 0°C) environments. At present, although some scientific research institutes in my country have ...

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Application Information

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IPC IPC(8): G01N25/54
Inventor 胡千庭司荣军李润之王磊
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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