The propane storage tank is equipped with a spray cooling fire-fighting device, which is composed of pipelines, nozzles and water supply risers. It is installed on the tank roof, tank wall, stairs, safety passages and important process instruments and equipment, and the system installation complies with relevant domestic regulations.

　　The fire-fighting sprinkler pipeline of the storage tank is made of 20# seamless double-sided galvanized steel pipe, and the device adopts the overall anti-corrosion method. The device is prefabricated and welded and then integrally pickled and hot-dip galvanized inside and outside.

　　The arrangement of the nozzles is arranged so that the fan-shaped water curtain sprayed by it has a certain intersection on the tank wall to prevent blind spots;

　　There is a pressure reducing facility at the main entrance of the sprinkler device to control the inlet pressure. The outlet pressure and outflow coefficient of the sprinkler and the piping conditions meet the requirement that the actual spray volume after installation cannot exceed 5% of the calculated water volume; the spray intensity is as per The top of the tank is not less than 4L/min.㎡, and the wall of the tank is not less than 2.5L/min.㎡.