Method for extinguishing fire

• US 9,675,825 B2
• Filed: 09/07/2011
• Issued: 06/13/2017
• Est. Priority Date: 09/16/2010
• Status: Active Grant

• Current Assignee: Nano Fire LLC
• Original Assignee: XI'AN Westpeace Fire Technology CO.,LTD
• Inventors: Guo, Hongbao, Zhang, Weipeng
• Primary Examiner(s): Hall, Arthur O
• Assistant Examiner(s): PHAM, TUONGMINH NGUYEN
• Application Number:
  US13/824,282
• Publication Number:
  US 20130175060A1
• Time in Patent Office: 2,106 Days
• Field of Search: 169 9, 169 11- 12, 169 26- 28, 169 43- 44, 169 84- 85
• CPC Class Codes: A62C 5/006 Extinguishants produced by combustion
• CPC Class Codes: A62D 1/06 containing gas-producing, chemically-reactive components

Abstract

A new method for extinguishing fire is provided, characterized in that a pyrotechnic agent is used as a heat source (energy) and a power source (driving gas); during use, the pyrotechnic agent is ignited, and the high temperature generated by the combustion of the pyrotechnic agent is utilized to make a fire extinguishing composition produce a large amount of fire extinguishing substance, which is sprayed out together with the pyrotechnic agent, so as to achieve the purpose of extinguishing a fire. As compared with conventional aerosol fire extinguishing systems, gas fire extinguishing systems and water-based fire extinguishing systems, the fire extinguishing method of the present invention is more efficient and safer.

Claims

1. A method for extinguishing fire, the method comprising:

providing a fire extinguisher having a nozzle for spraying out a fire extinguishing substance, a pyrotechnic agent and a fire extinguishing composition contained in the fire extinguisher, the fire extinguishing composition being disposed between the nozzle and the pyrotechnic agent within the fire extinguisher;

using the pyrotechnic agent as a heat source and a power source;

igniting, during use, the pyrotechnic agent to generate a high temperature gas; and

allowing the high temperature gas generated by combustion of the pyrotechnic agent to flow through the fire extinguishing composition to cause the fire extinguishing composition to generate a large amount of the fire extinguishing substance, which is sprayed out together with the pyrotechnic agent through the nozzle, so as to achieve a purpose of extinguishing a fire,

wherein the fire extinguishing composition includes 40 mass % of zinc carbonate, 50 mass % of potassium carbonate, and 10 mass % of microcrystalline paraffin wax.

2. A method for extinguishing fire, the method comprising:

providing a fire extinguisher having a nozzle for spraying out a fire extinguishing substance, a pyrotechnic agent and a fire extinguishing composition contained in the fire extinguisher, the fire extinguishing composition being disposed between the nozzle and the pyrotechnic agent within the fire extinguisher;

using the pyrotechnic agent as a heat source and a power source;

igniting, during use, the pyrotechnic agent to generate a high temperature gas; and

allowing the high temperature gas generated by combustion of the pyrotechnic agent to flow through the fire extinguishing composition to cause the fire extinguishing composition to generate a large amount of the fire extinguishing substance, which is sprayed out together with the pyrotechnic agent through the nozzle, so as to achieve a purpose of extinguishing a fire,

wherein the fire extinguishing composition includes 10 mass % of potassium nitrate, 15 mass % of phenolic resin, 55 mass % of sodium chloride, 15 mass % of hydroxyl-terminated polybutadiene, and 5 mass % of toluene diisocyanate.