METHOD AND FIRE FIGHTING relief of liquefied natural gas or liquefied petroleum gas water-air medium expansion FOAM AND SYSTEM FOR ITS IMPLEMENTATION

摘要

1. A method of arresting and fire extinguishing liquefied natural gas and liquefied petroleum gas, comprising treating the surface of the water-air foam liquefied gas, characterized in that the surface of the liquefied gas treated with the water-air foam of medium expansion foam with a multiplicity of 20 to 70.2. The method of claim. 1, characterized in that the surface of the liquefied gas treated with the combined air-water medium expansion foam synthetic hydrocarbon blowing agent, such as a synthetic hydrocarbon type foaming agent PO 6TST.3. The method of claim. 1, characterized in that the surface of the liquefied gas treated with the water-air medium expansion foam to form on the surface of the liquefied gas foam layer providing lower gas vapor concentration above the surface of the foam layer below the lower concentration limit plameni.4 distribution. The method of claim. 1, characterized in that the surface of the liquefied gas treated with the water-air medium expansion foam with a rate of advance of formation of the foam layer on the surface of the liquefied gas relative to the averaged velocity gas ascending vapor stream into flame pozhara.5. The method of claim. 1, characterized in that the surface of the liquefied gas treated with the water-air foam medium ratio to form on the surface of the liquefied gas composition of successively arranged on the surface of the liquefied porous ice bed gas layer of frozen water-air medium expansion foam and a layer of liquid water-air medium expansion foam. 6. The method of claim. 5, characterized in that the surface of the liquefied gas is treated in