Fire experiment simulation device in narrow and long limited space

Abstract

The invention relates to a fire experiment simulation device in a narrow and long limited space, and the device comprises a simulation cabin, a first thermocouple unit, a second thermocouple unit, a smoke collecting system and a computer control system, wherein the length-width ratio and the length-weight ratio of the simulation cabin are (10-8):1 respectively, and a fire generation device is arranged at one end part of the bottom surface of the simulation cabin; the first and second thermocouple units are arranged on one side surface of the simulation cabin; the computer control system is used for collecting temperature and smoke gas information in the simulation cabin and performing data analysis; the first thermocouple unit comprises a plurality of thermocouples which are horizontally arranged in the positions close to the top of the cabin along the length direction of the simulation cabin; and the second thermocouple unit comprises a plurality of thermocouples which are gradually arranged from top to bottom along the height direction of the simulation cabin in a loose manner. The invention establishes the fire experiment simulation device for researching the flashover mechanism in the narrow and long limited space for the first time, the device has a complete temperature measuring system and the smoke collecting system, the structure is reasonable in arrangement, and the experimental accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of fire safety experiment equipment, and in particular relates to an experimental simulation device for fire spread and flashover evolution mechanism in a long and narrow space. Background technique [0002] In recent years, with the rapid development of the world economy and the acceleration of urbanization, many countries have taken the development and utilization of underground space as an important measure to solve the crisis of urban land, population and environment, save resources, and take the road of sustainable urbanization. . [0003] However, compared with ground-level buildings, underground space has many potential safety hazards: relatively small space, fewer safety exits for personnel, poor natural ventilation conditions, and difficulty in achieving natural lighting. Therefore, when a disaster occurs inside the underground space, the harm caused will far exceed that of similar disasters on the...

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Problems solved by technology

[0006]However, due to the special structure and function of the underground narrow space, the results of previous theoretical models, experimental data and numerical calculations still cannot be fully explained and analyzed The flashover phenomenon in the fire process, so it is of great significance to carry out the research on the fire development process and flashover evolution mechanism in the narrow and long underground space

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