Limited space fire blast simulation and explosion pressure relief and explosion suppression experiment platform and method

Abstract

The invention discloses a limited space fire blast simulation and explosion pressure relief and explosion suppression experiment platform and a method. The platform comprises an experiment cabin, an ignition system, a suppressing system, a gas distribution system, a data acquisition system, a control system, and a computer, the experiment cabin, which is a three-dimensional cabin, is provided with inhibitor nozzles reserved on the top surface and window type explosion vents, a plurality of pressure relief membrane frames with different sizes which are of square boss structures are nested through high-strength bolts to form the window type explosion vent, and in a fire blast experiment, the window type explosion vents are arranged on the sidewalls of the experiment cabin; in a flashover and backdraft experiment, the sidewalls of the experiment cabin are arranged as door type explosion venting panels, and the door width can be adjusted by a high-strength bolt nesting method. The platform and the method can be adopted to carry out fire blast and explosion suppression experiments in the limited space of a building with real dimensions under different concentration distributions, different explosion venting conditions, different ignition positions and different explosion suppression conditions, providing related experimental parameters for the creation of explosion venting parameter prediction model in limited spaces of buildings and the proposal of a highly effectively explosion suppression technique.

Description

Technical field [0001] The invention relates to explosion-proof and fire-proof safety technology, in particular to a confined space explosion simulation, explosion pressure relief, and explosion suppression experiment platform and method. Specifically, a confined space combustible gas explosion, gas phase backfire, solid and liquid flashover simulation, explosion pressure relief, and explosion suppression experimental platform are provided. It is a multi-functional and comprehensive combustion and explosion experiment simulation and suppression Experimental platform device. Background technique [0002] Combustible gas explosion accidents in confined spaces are a common type of disaster accidents in industrial production sites such as petrochemicals and people’s daily lives. The evolution law of combustion and explosion in confined spaces and their explosion-proof and suppression technologies are current fire and explosion prevention and control Research hotspots in the technica...

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Problems solved by technology

At present, researches on the combustion and explosion characteristics of combustible gases in confined spaces, pressure waves, fire development laws, and explosion suppression are mainly concentrated in experimental devices such as pipelines, explosion containers, and roadways, and most of the research objects are single combustion and explosion prevention technologies. However, there is still a lack of comprehensive experimental devices and methods that can simulate internal combustion explosions in confined spaces of real-scale buildings and simulate multiple explosion prevention technologies at the same time

In addition, for the common flashover and backfire accidents in the confined space of buildings, the current research mainly uses small-scale experimental devices, and there is a lack of real-scale flashover and backfire simulation and suppression experimental methods and devices in confined spaces. There is no experimental device and method for comprehensively simulating internal combustion explosion, flashover, backflame, explosion pressure relief, and explosion suppression in a confined space of a building

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