Characteristic and Fire Experiment of Gasoline Spraying in Gas Station

To ensure the safety of autonomous refueling mode is the premise of promoting the construction of self-service gas stations. As an inflammable and explosive hazardous chemical, it is necessary to study the hazards of gasoline in the operation of gas stations. This paper provide a experimental of ground leak, gas diffusion and gasoline-pool-fire burning. The experimental results showed: Heavy gas effect is obvious in the process of volatile diffusion of gasoline. After the spraying amount of 0.5L gasoline was released to the ground, the concentration did not reach the lower explosive limit at the height of 3cm from the surface near the oil surface. while at the spraying amount of 1L and 2L gasoline, the concentration was at the lower explosive limit at the measuring point 3cm from the surface for a long time. In particular, when the spraying amount was 2L, the height measuring point 20cm above the oil surface also briefly reached the lower explosive limit. At the same time, the parameters such as flame height, duration, temperature and radiation intensity of gasoline with different oil quantities were measured. It was found that in the absence of combustibles nearby, there is a risk of fire caused by adjacent non-contact combustibles.