Fire risk and fire fighting of the hottest garage

2022-08-15
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With the development of economic construction and the improvement of people's living standards, road transportation with cars as the main body and people's private cars for transportation due to their rapidly growing market demand and great potential are developing rapidly. Therefore, car parking lots and garages have been formed unconsciously in roadsides, shopping malls, residential quarters, underground garages and other places, Potential fire hazard. According to statistics, in 2004, private cars in Suzhou have exceeded 50% of the vehicles in Suzhou, 10 so wa=0.1g2/hz. Therefore, fire accidents caused by cars have become increasingly prominent. In 2004 alone, there were more than 300 fire accidents in Suzhou, mainly caused by car fuel system and power system failures, and traffic accidents. For our fire department, we should continue to analyze the fire risk of garage from reality, Carry out adaptability training to ensure that once a car fire occurs, it can be quickly put out. Next, I will make an analysis of the fire risk and fire fighting of the garage

I. composition of garage

garage is a place for centralized parking, storage and maintenance of vehicles, which is usually divided into small garage, load garage, bus garage and special garage. Therefore, the garage generally covers a large area, there are many large buildings, vehicles are highly concentrated, combustible materials are gathered, and there are many unsafe factors

II. Characteristics and fire risk of the garage

1. Classification of the garage: the garage is divided into five levels according to the number of vehicles stored. Level 1 is more than 100 vehicles, level 2 is vehicles, level 3 is vehicles, level 4 is vehicles, and level 5 is vehicles

2. Building fire protection requirements for building garages: class I, II and III garages are generally parked in buildings and maintain a certain fire separation distance from other buildings. 4、 Some level 5 garages are attached to other buildings, some are together with others, and some garages are attached to paint, carpentry, fitter workshops and equipment rooms where flammable liquids wash car parts. These places have great potential fire hazards

in recent years, with the large increase of vehicles, the contradiction between parking vehicles in busy areas has become increasingly prominent. Therefore, after 2000, multi-storey garages or elevated garages have been built (elevated garages have been built in Shenzhen in previous years), and the walls and floors of the garage are made of fireproof materials

3. The fire risk of the garage is mainly manifested in the following aspects: first, the new national standard for 9 kinds of food contact materials and products has been officially implemented. The parking space of vehicles is small and the area of vehicles is limited. In case of fire, there is no time to drive and evacuate; Second, the centralized parking of vehicles in the garage will inevitably accumulate a large amount of fuel and flammable vapor, which is easy to cause rapid spread; Third, after the car caught fire, the fire brigade often rushed to the scene, and the vehicle has become beyond recognition; Fourth, because the car itself contains inflammables and combustibles such as gasoline and rubber, after the fire, it will produce a high temperature, which can spread both along the combustible building objects and to the garage. Because the garage space is quite large, the fresh air can flow unimpeded to the fire source, forming air convection, contributing to the development of combustion. After the fire, the steel roof truss of the house roof will deform or collapse after minutes due to the high temperature

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