Explosion limit testing device of combustible gas under high-temperature condition

An explosion limit and testing device technology, applied in the direction of material explosiveness, can solve problems such as poor anti-explosion pressure capability and slow heating, and achieve the effect of effective measurement and protection of the testing device

Inactive Publication Date: 2013-02-20
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, most of the existing high-temperature explosion limit instruments use stainless steel test devices, which have the disadvantage of slow heating, and the higher the temperature, the worse the anti-e...

Method used

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  • Explosion limit testing device of combustible gas under high-temperature condition

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Embodiment 1

[0026] The device for testing the explosion limit of combustible gas under high temperature conditions of the present invention includes a temperature data acquisition system 100, a heating temperature control system 200 and a gas distribution intake / extraction purge system 300;

[0027] The temperature data acquisition system 100 is a computer receiving and processing system;

[0028] The gas distribution intake / exhaust purge system 300 includes a gas vent pipe 301 to be tested, an oxygen vent pipe 302, an air vent pipe 303 and a vacuum pump 304 connected in parallel;

[0029] The heating temperature control system 200 includes: a round bottom flask test chamber 201, a heating sleeve 202, a temperature control thermocouple 203 and a heating furnace body 204;

[0030] The round bottom flask test chamber 201 is suspended in the heating furnace 204 through an insulating support device 205, the heating sleeve 202 is set on the outer wall of the round bottom flask test chamber 201...

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Abstract

The invention relates to an explosion limit testing device of combustible gas under a high-temperature condition. The device comprises a temperature data collection system, a heating temperature control system, and a supplied gas feeding/gas pumping and purging system. The supplied gas feeding/gas pumping and purging system comprises the following components connected in parallel: a delivering pipe of gas to be detected, an oxygen delivering pipe, an air delivering pipe, and a vacuum pump. The heating temperature control system comprises a round-bottomed flask testing chamber, a heating jacket, a temperature control thermocouple, and a heating furnace. The round-bottomed flask testing chamber is suspended in the heating furnace through an insulation supporting device. The testing device provided by the invention is a semi-closed testing device. A safety valve is provided above the flask, such that pressure can be released in time after explosion occurs, and the flask is prevented from being damaged by detonation pressure. Therefore, the explosion limit of combustible gas under high-temperature condition can be effectively measured, and temperature can be accurately controlled. An upper temperature limit can reach 800 DEG C. Also, the device is convenient to observe, such that testing accuracy is greatly improved.

Description

technical field [0001] The invention relates to an explosion limit test device, in particular to an explosion limit test device for combustible gas under high temperature conditions. Background technique [0002] Combustible gas and air must be uniformly mixed within a certain concentration range to form a premixed gas, which will explode when it encounters a fire source. This concentration range is called the explosion limit, or the explosion concentration limit. The explosion limit of combustible gas is one of the important indicators for judging and evaluating the fire hazard of combustible gas substances. Explosion limit can be used to assess the explosion hazard of combustible gas, as the basis for grading combustible gas and determining its fire hazard category. The wider the range of explosion limit, the greater the risk of combustible gas explosion. [0003] At present, most of the existing high-temperature explosion limit instruments use stainless steel test device...

Claims

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Application Information

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IPC IPC(8): G01N25/54
Inventor 张铁姜杰
Owner CHINA PETROLEUM & CHEM CORP
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