Experimental facility for testing autoignition temperature of gas in high-pressure oxygen-enriched environment

An experimental device and auto-ignition temperature technology, applied in the investigation stage/state change, etc., can solve the problems of undesigned test device and inability to complete auto-ignition temperature measurement, etc., and achieve the effect of increasing the measurement range, reducing risk, and simple operation

Inactive Publication Date: 2013-02-13
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing experimental device tests the autoignition temperature of combustibles in atmospheric atmosphere at atmospheric pressure. The test objects are solids and liquids, and it is impossible to complete the measurement of autoignition temperature under differ

Method used

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  • Experimental facility for testing autoignition temperature of gas in high-pressure oxygen-enriched environment

Examples

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Example Embodiment

[0025] The test gas of the present invention continuously raises temperature and spontaneously ignites under the airtight condition and preset pressure, and records the temperature change of the whole process through a temperature pressure sensor and a computer.

[0026] The experimental device includes a gas supply part, a temperature control heating part, a reactor part, a safety interlock device and a PC, among which,

[0027] The air supply part includes a steel cylinder filled with air or oxygen-enriched air, a steel cylinder filled with the gas to be measured, a one-way valve and a needle valve. The air or oxygen-enriched air passes through the cylinder and reacts via the one-way valve and the needle valve. The middle and lower part of the cylinder of the reactor part enters the reactor part, and the gas to be tested enters the reactor part from the middle and lower part of the cylinder of the reactor part through the steel cylinder through the one-way valve and the needle val...

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Abstract

The invention relates to an experimental facility for testing the autoignition temperature of a gas under a special dangerous (high-pressure oxygen-enriched) condition. The experiment facility comprises a gas supply part, a temperature-controlled heating part, a reactor part, a safety interlocking device and a PC (Personal Computer), wherein the reactor part comprises a cylinder body and a flange plate which are sealed; and 6 pipelines are distributed on the flange plate and are respectively used for vacuumizing, pressure detection, temperature detection, stirring, electromagnetic valve evacuation and being used as a safety valve. When the temperature raises by more than 20DEG C sharply, the sample burns; and when the safety valve trips out, the gas autoignites or deflagrates. According to the experimental facility, the autoignition temperature data is obtained by adjusting the system pressure and continuous temperature rise under the sealed condition, automatically recording the temperature data and judging whether the autoignition happens, the measuring conditions of the autoignition temperature are broadened; and the experimental facility disclosed by the invention is simpler to operate and realizes computer automation of experimental operation and data recording.

Description

technical field [0001] The invention relates to an experimental device for testing the autoignition temperature of gas in a high-pressure oxygen-enriched environment. Background technique [0002] The autoignition temperature, also known as the ignition temperature, is the lowest temperature at which a substance burns due to an exothermic oxidation reaction that releases heat at a rate higher than the heat dissipation rate under certain conditions without flame or sparks. The autoignition temperature of the gas has a great relationship with the ambient pressure, oxygen content and container size. [0003] Existing experimental devices test the autoignition temperature of combustibles under normal pressure atmospheric atmosphere, the test objects are solid and liquid, and cannot complete the measurement of autoignition temperature under different pressure oxygen-enriched conditions. According to the literature search and market survey, there is no relevant institution in Chi...

Claims

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Application Information

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IPC IPC(8): G01N25/12
Inventor 王振刚孙峰
Owner CHINA PETROLEUM & CHEM CORP
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