High-speed sampling method and device for test fire smoke particle

A high-speed sampling, smoke particle technology, applied in sampling devices and other directions, can solve the problems of verification difficulties, data are not comparable, no operating procedures, etc., to achieve full flexibility, good overall performance, and promote the effect of homogeneity

Inactive Publication Date: 2008-06-11
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

The above-mentioned main collection methods do not have a unified operating procedure,...

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  • High-speed sampling method and device for test fire smoke particle

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Embodiment Construction

[0024] A high-speed sampling technology and device for experimental fire smoke particles, mainly composed of three parts: a combustion device, a combustion stabilization device, and a combustion product collection device. The combustion device has an opening in the center of the combustion table, and there are The lifting combustion platform 3 is installed on the lifting support 7, the lifting combustion platform 3 has a gas interface 8, the gas interface 8 is connected to the gas supply pipeline 9, and the gas supply pipeline 9 is connected to the gas bottle 12 through the regulating valve 11 Unicom, the regulating valve 11 controls the flow rate to adjust the size of the flame. The gas port 8 of the combustion platform 3 is connected with a nozzle or a plug. The area outside the gas port 8 is the electric heating plate area. 5 is connected to the heating controller 6; another liquid combustion vessel 10 is placed on the combustion platform 3; the combustion stabilization devi...

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Abstract

The invention discloses a testing fire and smoke grain high-speed sampling method and device, which is provided with a fuel gas interface on a drop burning platform connected with the fuel gas supplying pipeline. The fuel gas interface on the burning platform can be connected with nozzles of different models and an electricity heating zone is arranged at the surrounding zone around the fuel gas interface; or a liquid burning instrument is arranged on the burning platform, which achieves liquid burning fire of different scale through changing the side of a liquid burning container to conduct the corresponding burning study; at the surrounding zone of the heating zone, a ring-shaped filtering net is arranged to realize the stable controlling to burning; at one side of the heating zone or flame zone, a collecting piece is extended into the flame zone, and the collecting piece extends into the heating zone or the different heights or zones above the flame zone. By recording the position parameter of the collecting piece, the invention is beneficial for conducting regulated and repeatable burning experiment study.

Description

technical field [0001] The invention belongs to the field of fire experiment research, in particular to a high-speed sampling technology and device for experimental fire smoke particles. Background technique [0002] The study of fire product smoke particles is of great significance for in-depth understanding of the properties of combustion materials, and more importantly, it has certain guiding significance for the research of fire detection technology. However, how to obtain the smoke particles of fire combustion materials during the combustion process There has been no suitable device for generating particles. In order to obtain the specimens needed for research, different researchers adopt different methods, including manual collection—directly sending the collection sheet into the environment under test to collect relevant specimens; using collection pipes to collect samples—most large analytical instruments can Use this method. The above-mentioned main collection met...

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Application Information

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IPC IPC(8): G01N1/22
Inventor 张永明王进军方俊许彬马绥华祝玉泉蔡霆力
Owner UNIV OF SCI & TECH OF CHINA
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