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Phosphoric acid dry powder fire extinguishing agent

A technology of dry powder fire extinguishing agent and phosphoric acid, applied in fire prevention equipment, etc., can solve the problems of low fire extinguishing efficiency of foam fire extinguishing agent and difficulty in extinguishing oily fires, etc., and achieve the effect of large-area fire extinguishing

Inactive Publication Date: 2018-04-13
CHENGDU JUNHE TIANCHENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a phosphoric acid dry powder fire extinguishing agent to solve the problems that the dry powder fire extinguisher in the prior art is not easy to extinguish oily fires and the fire extinguishing efficiency of the foam fire extinguishing agent is relatively low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of phosphoric acid dry powder fire extinguishing agent, by the foaming agent of 5-13 mass parts, the stabilizing agent of 4-9 mass parts, the hydrophobic solid particle of 29-42 mass parts, the mixture that the rest are aqueous solution, described foaming The agent is N,N dinitrosopentamethylenetetramine or azodicarbonamide; the stabilizer is polyaluminum iron silicate, and the hydrophobic solid particles are attapulgite particles, zeolite particles, magnesium hydroxide A mixture of one or more of the particles; the solvent of the aqueous solution is water, and the solute is one or more of ammonium dihydrogen phosphate dry powder, diamine phosphate dry powder, phosphoric acid dry powder, sodium molybdate, sodium silicate, and chromium sulfate mixture of species.

[0019] In the case of any component content ratio in this example, it has been proved by experiments that 2L of the mixed solution is placed in a sealed container, and a pressure of 1.8-2.0 atmospheres ...

Embodiment 2

[0024] A kind of phosphoric acid dry powder fire extinguishing agent, by the foaming agent of 5-13 mass parts, the stabilizing agent of 4-9 mass parts, the hydrophobic solid particle of 29-42 mass parts, the mixture that the rest are aqueous solution, described foaming The agent is N,N dinitrosopentamethylenetetramine or azodicarbonamide; the stabilizer is polyaluminum iron silicate, and the hydrophobic solid particles are attapulgite particles, zeolite particles, and zeolite-like particles A mixture of one or more of them; the solvent of the aqueous solution is water, and the solute is one or more of ammonium dihydrogen phosphate dry powder, diamine phosphate dry powder, phosphoric acid dry powder, sodium molybdate, sodium silicate, and chromium sulfate The mixture, the mass parts of the foaming agent is 7 parts, the mass parts of the stabilizer is 6 parts, the mass parts of the hydrophobic solid particles are 40 parts, and the rest is a mixture of aqueous solution, the solute...

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Abstract

The invention discloses a phosphoric acid dry powder fire extinguishing agent. The phosphoric acid dry powder fire extinguishing agent comprises 5-13 mass parts of foaming agent, 4-9 mass parts of stabilizing agent, 29-42 mass parts of hydrophobic solid particle, and the balance of fixture consisting of water solution; the foaming agent is N, N-dinitroso pentamethylene tetramine or azodicarbonamide; the stabilizing agent is polymerized aluminum iron silicate; the hydrophobic solid particle is one or a mixture of more in attapulgite particle, zeolite particle and similar zeolite particle; solvent of the water solution is water; and solute is one or a mixture of more in ammonium dihydrogen phosphate dry powder, diammonium phosphate dry powder, phosphoric acid dry powder, sodium molybdate, sodium silicate and chromium sulfate. The fire extinguishing agent can be uniformly attached on oil substances; and the foaming agent can quickly perform free combination on non-covered areas to form covering layers, so that oxygen needed by combustion is isolated, physical isolation of combustible matters from the oxygen is formed, and the fire extinguishing effect is achieved.

Description

technical field [0001] The invention relates to the field of fire-fighting materials, in particular to the field of fire extinguishing agents used for fire extinguishing, specifically, a phosphoric acid dry powder fire extinguishing agent. Background technique [0002] A fire extinguisher is a portable fire extinguishing tool. Chemicals are placed in the fire extinguisher to put out the fire. Fire extinguishers are one of the common fire prevention facilities. They are stored in public places or places where fires may occur. Different types of fire extinguishers contain different ingredients and are specially designed for different fire alarms. Care must be taken during use to avoid adverse effects and danger. [0003] The existing fire extinguishing agents mainly include foam and dry powder, both of which have their own advantages and disadvantages. The fire extinguishing agent in the dry powder fire extinguisher is filled with sodium silicate for fire extinguishing and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00A62D1/02
CPCA62D1/0014A62D1/005A62D1/0071
Inventor 李会玲
Owner CHENGDU JUNHE TIANCHENG TECH
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