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Flammable liquid planar free-flowing combustion simulation experimental device and method

A technology for simulating experimental devices and liquids, which is applied in the direction of chemical analysis by means of combustion, which can solve the problems of restricted and lacking flow directions, and achieve the effects of convenient use, simple operation, and high experimental efficiency

Active Publication Date: 2019-05-31
应急管理部天津消防研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing related experimental devices are mostly used to study the combustion characteristics of a single flow direction. The type of flow surface is fixed and the flow direction is restricted. There is still a lack of comprehensive experimental devices and methods that can simulate the state of free flow and consider the type of flow surface at the same time.

Method used

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  • Flammable liquid planar free-flowing combustion simulation experimental device and method
  • Flammable liquid planar free-flowing combustion simulation experimental device and method
  • Flammable liquid planar free-flowing combustion simulation experimental device and method

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings and the flowing combustion embodiment aimed at n-heptane.

[0012] like Figure 1 ~ Figure 4 As shown, the small-scale simulation experiment device that can realize the two-dimensional free flowing combustion of flammable liquid in the plane includes the oil supply system 1, the flow system 2, the overflow system 3, and the test system 4.

[0013] The oil supply system includes an oil drum support 101, an oil drum 102, a hose fixing clip 103, a silicone hose 104, and a peristaltic pump 105. The cylindrical oil drum 102 without a cover is placed on the oil drum bracket 101, and the side of the oil drum 102 is welded A ring is used as the hose fixing clip 103. One end of the silicone hose 104 passes through the fixing clip 103 and is placed in the oil drum, and the other end passes through the pump head of the peristaltic pump 105 and is connected to the pagoda joint 201 of...

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Abstract

The invention relates to a flammable liquid planar free-flowing combustion simulation experimental device and method. The device comprises an oil supply system, a rogue system, an overflow system anda test system. The flammable liquid is pre-placed in an oil drum, and is flown into a flow surface tray through a peristaltic pump, a silicone hose and a steel pipe buffer tub for ignition and burning, a thermocouple tree of the test system, a camera, a bonded thermocouple, a radiant heat flow meter and an infrared thermal imager are employed to perform experiment data and image collection, and are connected with a multi-channel data collection instrument for remote data transmission, real-time display and control so as to achieve measurement of parameters such as flow burning areas, temperatures, heat radiation and the flame heights, and through change of the leakage parameters, material cushion and flow surface angles, the flammable liquid planar free-flowing combustion simulation experimental device and method are high in experiment efficiency, safe and controllable, simple to operate, convenient to use and accurate in measurement, and can develop planar free-flowing combustion state research of different substances, different flow surface types and different flow angles.

Description

technical field [0001] The invention relates to a flowing combustion, in particular to a simulating experimental device and an experimental method for combustible liquid plane free flowing combustion. Background technique [0002] Flammable liquid flowing fire is a common disaster accident type in petrochemical and other industrial production, transportation and storage places. The law of combustion evolution of flammable liquid flow and the prediction, prevention and control of accident consequences are the current research hotspots in the field of fire and explosion prevention and control. At present, the experimental researches on liquid flowing fire accidents mainly focus on the steady-state combustion of the liquid pool formed after the liquid leakage fully expands, and there are few researches on the unsteady process of flowing fire under the continuous leakage state. Existing related experimental devices are mostly used to study the combustion characteristics of a si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/12
Inventor 李晶晶刘晅亚纪超王鹏飞朱红亚许晓元李紫婷陈晔于年灏
Owner 应急管理部天津消防研究所
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