Fire extinguishing efficiency detection method and system for pneumatic field fire extinguishing equipment

Abstract

The invention discloses a fire extinguishing efficiency detection method for pneumatic field fire extinguishing equipment. The method comprises the following steps: planting herbal plants with stableand uniform physicochemical properties on a rectangular fuel bed according to a set water content, a set distribution density and a set height; igniting one end of the fuel bed from the roots of the herbal plants through a linear ignitor, so that a field surface local fire scene situation, in which fire spreads to the other end, is created; when burning flames are sufficiently developed and startto stably spread to a test section, starting the fire extinguishing equipment, so that intensity changes of radiant heat flows received by a set observation point from action of the fire extinguishingequipment to an end stage of fire spreading on the fuel bed can be metered through heat flow meter groups; and measuring and determining the fire extinguishing efficiency of the fire extinguishing equipment in a specific working status according to the changes, and calculation parameters and algorithms that are derived. The method disclosed by the invention has the advantages that the herbal plants, of which the distribution is consistent with the distribution of surface fuels, are arranged on the standard fuel bed, and an inclination angle adjustment mechanism, lateral heat insulation, natural entrainment prevention baffles and a simulated field fire natural convection mechanism are additionally adopted, so that a typical dynamic local surface fire spreading scene is created.

Description

technical field [0001] The invention relates to the quantitative evaluation technology of the fire extinguishing efficiency of field fire fighting equipment, especially for the quantitative calibration of portable wind fire fighting equipment and fire fighting equipment efficiency dominated by wind and superimposed with auxiliary fire extinguishing functions, and provides a wind-led wild fire fighting Method and system for detecting fire extinguishing effectiveness of machinery and equipment. Background technique [0002] Field fire-fighting equipment dominated by wind power is widely used in my country's forest fire prevention industry. Such devices are highly portable and can be used in remote areas with inaccessible transportation. Especially for areas far away from water sources, they have become crucial operating tools for front-line rescue teams. Long-term practice has shown that a wind-powered fire extinguisher is equivalent to the effect of 20-30 firefighters using...

AI Technical Summary

Problems solved by technology

However, wood stack fires are mostly used for fire simulation tests inside buildings, which are not typical for fire scenes that spread dynamically in the wild.

More importantly, due to the lack of reliable detection parameter extraction and analysis and corresponding quantitative evaluation indicators, the relevant tests are of demonstration nature

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