Application of Fluoroprotein Foam Fire Extinguishing Agent in Oil Mist

Fluoroprotein foam fire extinguishing agent is a multi-purpose foam fire extinguishing agent, suitable for low expansion foam system equipment. It can produce foam under the action of external mechanical force, and form a layer of polymer film at the interface between fuel and foam, which can effectively protect the foam from the damage of polar liquid. With the dual role of film and foam, isolating the air can quickly extinguish the fire. It has good fire extinguishing performance, no odor, no pollution and no corrosion during storage and use. It can be used to extinguish petroleum fires and flammable polar solvent fires, such as alcohol, ether, ester, ketone and aldehyde. It is widely used in large petrochemical enterprises, chemical fiber plants, oil depots, solvent plants, breweries, chemical product warehouses, ships, airports, oil production platforms, storage and transportation terminals, etc.

In oil tank fire fighting, in addition to the use of fire fighting facilities fixed on the oil tank, operating foam guns, monitors, hook pipes and other fire fighting technical equipment is the main aspect of the entire combat operation. The technology of using fluoroprotein foam fire extinguishing agent to spray the oil surface mainly includes two aspects: one is to ensure the quality of foam formation, that is, water and foam liquid are mixed well, and the foam ratio is high. Specifically, the foam ratio of the foam is not less than that of the mixed liquid. 6 times; the second is to ensure the efficiency of foam coverage, that is, to spray all foam on the oil surface as much as possible without causing artificial mechanical damage and waste to the foam. In ensuring the quality of foam formation, the following links are mainly involved:

1. The adjustment of various pointers and valves should be consistent. When using foam guns, monitors and hook pipes to spray foam, the pointer position on the foam mixer should be consistent with the type of foam gun, monitor and hook pipe used. For example, when using a 25L foam tube gun, the pointer position on the foam mixer should be adjusted to 25(PH4); if using 50L, the pointer position should also be adjusted to 50(PH8), and so on. Do not mistakenly assume that the pointer on the foam mixer is adjusted to a multiple of foam. When the bubble does not form well, the pointer will be adjusted randomly and the result will be worse. The valve at the pump outlet and the closing and opening valves on the foam gun should be fully open. In addition, care should be taken to open the top cover of the foam tank to allow air to enter, so as to avoid the formation of a vacuum in the foam tank and the inability to transport the foam liquid.

2. Ensure the working pressure of various hook pipes to fully mix the mixed liquid and air. The air mechanical foam used by the fire brigade is mainly made by fully mixing the mixed liquid and air under the action of the machine. In order for the mixed liquid to be fully mixed with air, it must have sufficient mechanical effect, and the various hook pipes must have sufficient inlet working pressure. The working pressure of the pump should be adjusted according to the requirements of the inlet working pressure of various foam guns, cannons and hook pipes, so that the mixed liquid and air are fully mixed.