Liquid pyrotechnic fire extinguishing composition producing a large amount of water vapor
First Claim
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1. A fire extinguishing or suppressing apparatus comprising:
- a pressure container defining an enclosed combustion chamber housing a liquid pyrotechnic mixture of hydroxyl ammonium nitrate, an amine nitrate salt and water;
initiation means mounted on said pressure container for initiating reaction of said liquid pyrotechnic mixture to produce reaction products comprising a large proportion of water vapor for extinguishing or suppressing a fire; and
a diffuser housing mounted on a wall of said pressure container, a first portion of said diffuser housing extending internally from said wall into the combustion chamber and a second portion of said diffuser housing extending externally from said wall, said second portion defining at least one exit port for release of reaction products of the liquid pyrotechnic composition, said first portion of the diffuser housing having frangible burst means positioned therein for blocking a flow path from the combustion chamber to the at least one exit port until the frangible burst means is ruptured.
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Abstract
Fire extinguishing or suppression apparatus and method employing a liquid pyrotechnic composition of a ternary mixture of hydroxyl ammonium nitrate, an amine nitrate salt, and water, in a closed combustion chamber of a pressure container. The apparatus is constructed to permit a large volume of water vapor exothermically generated by the reaction of a liquid pyrotechnic composition to be discharged from the combustion chamber and pressure container to an area of a fire.
41 Citations
20 Claims
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1. A fire extinguishing or suppressing apparatus comprising:
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a pressure container defining an enclosed combustion chamber housing a liquid pyrotechnic mixture of hydroxyl ammonium nitrate, an amine nitrate salt and water; initiation means mounted on said pressure container for initiating reaction of said liquid pyrotechnic mixture to produce reaction products comprising a large proportion of water vapor for extinguishing or suppressing a fire; and a diffuser housing mounted on a wall of said pressure container, a first portion of said diffuser housing extending internally from said wall into the combustion chamber and a second portion of said diffuser housing extending externally from said wall, said second portion defining at least one exit port for release of reaction products of the liquid pyrotechnic composition, said first portion of the diffuser housing having frangible burst means positioned therein for blocking a flow path from the combustion chamber to the at least one exit port until the frangible burst means is ruptured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of extinguishing or suppressing a fire comprising:
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reacting in a closed combustion chamber of a pressure container a liquid pyrotechnic mixture of hydroxyl ammonium nitrate, an amine nitrate salt and water to produce reaction products comprising a relatively large proportion of water vapor; and discharging the reaction products from the combustion chamber and pressure container to an area of the fire. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification