Specific measures of emporium fire loss prevention ability improvement

Abstract

The present loss prevention of the majority emporium focus on the economic loss prevention, neglects of the fire and other disasters losses, and lacks of effective measures of fire loss prevention and other disasters. The early emporium fire detection and alarm measures based on Lambert-Beer Law was analyzed and discussed, and the transmittance curve and three-dimensional camber of an ellipsoid fire fume were researched, during the time from fume occurring to expanding, the transmittance of fume ellipsoid increases in nonlinear as the ellipsoid volume increasing, the distribution of transmittance contour accords with exponent curve. The transmittance approximates 0 in the fire fume occurred instant, and increases and approximates to 1 with the fume volume increasing. The specific safety management measures of emporium fire loss prevention included the fire control safety education, fire service installations routine check and maintenance and management of fire hazards; the corresponding fire emergency measures included the fire plan development, evacuation and sending fire message in time were advanced. In very early fire, the period of enough CO, CO2 produced is much early than smoke and flame. The early emporium fire detection and alarm measures based on Lambert-Beer Law used the relationship between the transmittance T of absorbed monochromatic light and the concentration C or the thickness F of the substance, detecting the levels of CO, CO2 in the emporium air, can detect and alarm in the fire early smouldering or brewing process. Such detection and alarm measures can provide more time to the fire control works, and minimize the fire losses. The specific safety management measures of emporium fire loss prevention and the corresponding fire emergency measures discussed can also effectively improve the emporium loss prevention capabilities on the various fire stages.