초록 ▼

A chemical fire extinguishing apparatus which includes a chemical storage chamber, chemical discharge conduct connected to the chamber for conveying and distributing the chemical, and a source of relatively high pressure gas connected to the chamber and communicating with the interior thereof to agi

A chemical fire extinguishing apparatus which includes a chemical storage chamber, chemical discharge conduct connected to the chamber for conveying and distributing the chemical, and a source of relatively high pressure gas connected to the chamber and communicating with the interior thereof to agitate and fluidize the extinguishing chemical by impingement of high pressure gas. Upon agitation and fluidization, gas is delivered then to the chamber at a lower pressure to entrain the chemical in a constant, relatively low pressure gas stream flowing from the chamber to the chemical discharge conduit.

대표청구항 ▼

A fire extinguishing apparatus comprising: a pressure vessel containing a solid particulate chemical fire extinguishing agent; an injection pipe projecting through the lower side of the pressure vessel and terminating in the lowermost portion of the solid particulate chemical fire extinguishing agen

A fire extinguishing apparatus comprising: a pressure vessel containing a solid particulate chemical fire extinguishing agent; an injection pipe projecting through the lower side of the pressure vessel and terminating in the lowermost portion of the solid particulate chemical fire extinguishing agent in the pressure vessel; a first source of gas under pressure connected to said injection pipe; means for selectively and automatically regulating the pressure of gas delivered from said first source to said injection pipe; a second source of gas connected to said injection pipe, said second gas source including a supply of gas at a relatively higher pressure than the regulated pressure of gas from said first source; discharge means connected to said pressure vessel for delivering said solid particulate extinguishing agent from said pressure vessel to the situs of a fire; and means automatically responsive to a property of the gas originating at said second source to sequentially communicate with the injection pipe, initially the second source of gas and subsequently the first source of gas, whereby gas flows at such subsequent time, at a constant pressure through said discharge means.