Top-opened experiment simulating device for fire within limited space

Abstract

The invention discloses a top opened simulating device for fire within a limited space. An arranging chamber is of a detachable structure supported by a chamber supporting frame and is divided into alower-layer chamber and an upper-layer chamber; the lower-layer chamber is of a closed cavity; the upper-layer chamber is of a top opened cavity; the upper-layer chamber is arranged into a transparentglass side wall; one side of the chamber is arranged into an openable chamber door; a fuel disk is arranged at the bottom center of the upper-layer chamber; a smoke exhausting system is arranged above the chamber; a camera is arranged outside the chamber for recording the flowing process of flue gas. According to the top opened experiment simulating device disclosed by the invention, pool fire isdirectly adopted as a fire source, and the pressure generated by gas at the top opening in a real fire environment can be simulated; by means of a flue gas flow field display unit, the flowing stateand the flowing form of the flue gas at the top opening can be completely simulated, and the whole experiment process and the phenomenon can be clearly monitored through the glass side wall; the fueldisk and a balance are respectively arranged in the upper-layer chamber and the lower-layer chamber of the experiment device, and measurement data are accurate and reliable.

Description

technical field [0001] The invention relates to the technical field of fire safety, and more specifically relates to a confined space fire experiment simulation device with an opening at the top, which is used for the research on the flow of smoke in the confined space with the opening at the top. Background technique [0002] In recent years, with the rapid development of economic globalization, low-cost maritime trade has been outstanding, which directly promotes the development of the shipping industry. As the power source for the operation of the ship, the engine room has a high fire risk because it is located in a concentrated place of mechanical equipment, has many combustibles, a large fuel reserve, and strong heat transfer. [0003] Generally, fires can be divided into open space fires and confined space fires according to different places where fires occur. As a typical confined space, a cabin with a horizontal opening at the top is often used to simulate a ship en...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the experimental cabin structure design and camera conditions, it is impossible to observe the smoke flow process and flow form at the opening of the cabin.

Li Changhai of the University of Science and Technology of China built an experimental cabin of 1m×1m×0.75m to study the influence of the top corner opening on the combustion of the pool fire. During the experiment, the balance measurement system was directly placed in the cabin, and the cabin during the combustion process was not considered. The impact of pressure changes on the balance measurement, and this cabin is only equipped with observation windows on one side, the difference caused by the viewing angle will lead to dead angles in the observation of the combustion process in the experiment, and the entire combustion process cannot be recorded truly and objectively

[0005] So far, there is no experimental device for comprehensive research on the flue gas flow process in a confined space with an open top

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