Experimental device and experimental method for measuring combustion characteristics of cable in oxygen-rich environment

A technology of combustion characteristics and experimental devices, applied in the direction of chemical analysis using combustion, can solve problems such as lack of experimental devices, and achieve the effects of strong operability, simple device and convenient operation

Pending Publication Date: 2018-10-12
HEFEI UNIV OF TECH +1
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  • Claims
  • Application Information

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Problems solved by technology

However, for the research on the combustion characteristics of cable fires in an oxygen-enriched environment,...

Method used

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  • Experimental device and experimental method for measuring combustion characteristics of cable in oxygen-rich environment
  • Experimental device and experimental method for measuring combustion characteristics of cable in oxygen-rich environment

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing:

[0033] Such as figure 1 As shown, the experimental device for measuring the combustion characteristics of cables in an oxygen-enriched environment described in this embodiment includes a housing 1 on which an air intake system, an exhaust system, a cable support system, an ignition system, and combustion parameters are arranged. Test system, oxygen monitoring system and data acquisition system.

[0034] The housing 1 is made of stainless steel with a diameter of 50 cm, a wall thickness of 2 mm, and a height of 120 cm. The bottom of the housing 1 is sealed, and the top has a mouth with a diameter of 100 mm;

[0035] The air intake system includes an oxygen intake system and a nitrogen intake system. Each system is composed of a gas cylinder 2, an air intake pipe 3, and a flow controller 4. Two 10mm thick air intake pipes 3 are threaded on a stainless steel on shell 1;

[...

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Abstract

The invention relates to an experimental device and an experimental method for measuring the combustion characteristics of a cable in an oxygen-rich environment. The device includes a shell, an air intake system, an exhaust system, a cable supporting system, an ignition system, a combustion parameter test system, an oxygen monitoring system and a data acquisition system. The air intake system is mounted at the bottom of the shell, the exhaust system is mounted at the top of the shell, the cable supporting system is fixed on the shell, a crucible is used for containing an experimental material,the ignition system heats the material by a heating wire arranged on the inner wall of the crucible, the combustion parameter test system includes a radiation heat flow meter, a thermocouple and a smoke component sensor, the oxygen monitoring system controls an oxygen sensor by a servo, and monitors the oxygen concentration near the crucible, and the data acquisition system comprises a computer,a multifunctional data acquisition card and an analog-to-digital conversion module, and is used for collecting data of all sensors and sending out a control instruction. The device has a simple structure and a strong operability, and is a simple and easily-operated experimental device for studying the combustion characteristics of the cable in the oxygen-rich environment, and a test result obtained by the method and the device is accurate and has a good repeatability.

Description

technical field [0001] The invention relates to the field of fire combustion research, in particular to an experimental device and an experimental method for measuring the combustion characteristics of cables in an oxygen-enriched environment. Background technique [0002] With the development of the economy and the improvement of living standards, the level of electrification in production and life has increased, and electrical fire accidents have also increased. According to the "China Fire Statistical Yearbook", in the past ten years, electrical fires have ranked first among all fire causes, and electrical fires caused by wires and cables account for more than 50% of the annual electrical fires, ranking first among all types of fires, causing casualties and Property damage was also the most serious. [0003] According to Xu Xiaonan et al.'s "Wire and Cable Fire and Flame Retardant Treatment", the insulation and sheath materials of most wires and cables are composed of va...

Claims

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Application Information

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IPC IPC(8): G01N31/12
CPCG01N31/12
Inventor 杨慎林高彩彬张佳庆程泽扬罗其颖何祺东刘爱玲王昌建
Owner HEFEI UNIV OF TECH
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