Microbial foam extinguishing agent

A foam fire extinguishing agent and microorganism technology, applied in fire protection equipment and other directions, can solve problems such as environmental pollution, and achieve the effects of strong resistance, long storage time and good environmental friendliness

Inactive Publication Date: 2015-02-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is the problem of environme

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The surfactant is a compound of sodium lauryl sulfate and potassium perfluorobutane sulfonate, the cosolvent is diethylene glycol butyl ether, the chemical fertilizer contains 0.06% nitrogen, 0.08% phosphorus, 0.06% potassium, preservative For 1,2-benzisothiazolin-3-one in dipropylene glycol solution.

[0025] Under normal temperature and pressure, add 540Kg surfactant, 600Kg co-solvent, 15Kg xanthan gum, 7.5Kg chemical fertilizer, 15kg preservative, 3Kg Bacillus subtilis to the 3000L reactor, the total number of colonies is 1×10 8 cfu / ml, add water to 3000L, stir continuously to make it evenly mixed, and then adjust the pH to 7 with hydrochloric acid to obtain a microbial foam fire extinguishing agent product.

[0026] In the fire scene of organic flammable liquids such as oil and benzene, the foam extinguishing agent is mixed with water at a ratio of 1:30 through a foam generator and used directly to extinguish the fire. Some microorganisms may be lost during the fire...

Embodiment 2

[0028] According to the conditions described in Example 1, the surfactant is cetyl sodium sulfate and N-ethyl-N-polyoxyethylene (9) ether-perfluorooctane sulfonamide complex, and the cosolvent is triethyl Diol butyl ether, the chemical fertilizer contains 0.08% nitrogen, 0.01% phosphorus, and 0.08% potassium, and the preservative is a dipropylene glycol aqueous solution of 1,2-benzisothiazolin-3-one. At normal temperature and pressure, add 540Kg surfactant, 450Kg co-solvent, 90Kg sodium alginate, 4Kg chemical fertilizer, 12kg preservative, 0.8Kg Bacillus mycoides to the 3000L reactor, the total number of colonies is about 2×10 7 cfu / ml, add water to 3000L, stir continuously to make it evenly mixed, and then adjust the pH to 7 with hydrochloric acid to obtain a microbial foam fire extinguishing agent product.

[0029] In the fire scene of organic flammable liquids such as oil and benzene, the foam fire extinguishing agent is mixed with water at a ratio of 1:100 through a foam g...

Embodiment 3

[0031] According to the conditions described in Example 1, the surfactant is a compound of sodium lauryl sulfate and tetraethyl perfluorooctyl ammonium sulfonate, the cosolvent is triethylene glycol butyl ether, and the preservative is 1,2 - Benzisothiazolin-3-one in dipropylene glycol in water. Under normal temperature and pressure, add 540Kg surfactant, 600Kg co-solvent, 150Kg gum arabic, 7.5Kg styrene acrylic acid copolymer, 12kg preservative, 3Kg chemical fertilizer, 1Kg Bacillus macerans in 3000L reactor, the total number of colonies is 3×10 7 cfu / ml, add water to 3000L, stir continuously to make it evenly mixed, and then adjust the pH to 9 with sodium hydroxide or hydrochloric acid to obtain a microbial foam fire extinguishing agent product.

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PUM

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Abstract

The invention relates to a microbial foam extinguishing agent and mainly aims to solve the problem of environmental pollution existing in the prior art. The microbial foam extinguishing agent disclosed by the invention comprises microbes, a surfactant, a cosolvent and an additive, wherein the microbes are bacillus strains separated from soil; the bacillus is at least one of bacillus subtilis, bacillus macerans, bacillus alcalophilus, bacillus polymyxa, bacillus licheniformis, bacillus mycoides, bacillus natto and bacillus amyloliquefaciens; the surfactant is a compound of a hydrocarbon surfactant and a fluorocarbon surfactant and contains at least one fluorocarbon surfactant; the cosolvent is diethylene glycol momobutyl ether or triethylene glycol momobutyl ether; and the additive contains a stabilizing agent, a thickening agent, an anti-corrosive agent and inorganic nutritional substances. The technical scheme of the microbial foam extinguishing agent preferably solves the problems and the microbial foam extinguishing agent can be applied to fire protection and fire extinguishment.

Description

technical field [0001] The invention relates to a microbial foam fire extinguishing agent. Background technique [0002] The foam fire extinguishing agent mainly extinguishes the fire through the cooling effect of water and the suffocation effect of foam isolation air. The fire extinguishing agent has simple equipment, low cost and high fire extinguishing efficiency, and has been widely used in fire fighting of oil and other combustible liquids. But there are also some problems in the use of foam fire extinguishing agent. For example, in 2005, when Jilin Petrochemical’s bisbenzene plant exploded, 28 tons of foam fire extinguishing agents were not disposed of effectively, and the firefighting sewage mixed with aniline was directly discharged into the Songhua River, causing serious pollution to the waters of the Songhua River. In addition, leakage fire accidents occurred in refining and chemical equipment, oil tank trucks, and long-distance pipelines. After the fire was exti...

Claims

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Application Information

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IPC IPC(8): A62D1/02
CPCA62D1/0085
Inventor 付靖春于风清沈郁
Owner CHINA PETROLEUM & CHEM CORP
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