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Built-up synergetic class-A/B water extinguishing agent series

A fire extinguishing agent, Class B technology, applied in the field of compound aqueous fire extinguishing agent, can solve the problems of flammability, high price, long fire extinguishing time, etc., and achieve the effects of safe and reliable use, low price and high fire extinguishing efficiency

Inactive Publication Date: 2012-01-18
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The fire extinguishing time is long, and the toxic smoke generated is more, and the non-heated barbecue casualty rate of personnel increases
[0006] 2. After the fire is extinguished, it is easy to re-ignite. The re-burning of combustibles after temporarily extinguishing the open flame will form a secondary fire, which is likely to cause casualties of firefighters at the fire site.
[0007] 3. Most of the antifreeze agents used are flammable organic substances, and during the fire extinguishing process, they are flammable at high temperatures and have fire hazards
[0008] 4. A large amount of fluorine-based surfactants are used, which are expensive and environmentally toxic
[0009] In addition, in order to improve the visual effect of fire extinguishing fluid, most of the existing patents use some non-degradable dyes as colorants, which have low environmental affinity

Method used

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  • Built-up synergetic class-A/B water extinguishing agent series
  • Built-up synergetic class-A/B water extinguishing agent series
  • Built-up synergetic class-A/B water extinguishing agent series

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 Household anti-fire extinguishing agent

[0050] In recent years, the incidence of family fires has shown an obvious upward trend, causing huge loss of life and property. In the family environment of daily life, there are fire sources and flammable materials lurking everywhere; domestic fires, especially cooking oil in the kitchen, have a high combustion temperature, and it is easy to re-ignite after the open fire is extinguished; various electrical equipment may also be caused by power Short circuit, open circuit, excessive contact resistance of contacts, increased load and other reasons cause fire. The types of fires in the family environment are Class A and Class B, and electrical fires may also occur; therefore, the ingredients and ratio of household fire extinguishing agents should be determined to put out both Classes A and B fires; since the main component of the fire extinguishing agent is Water has strong conductivity. When it is used to extinguis...

Embodiment 2

[0054] Embodiment 2 urban building anti-fire extinguishing agent

[0055] In urban areas, the social population is relatively concentrated, and the building density is increasing; the fire resistance level of buildings in old residential areas is generally not high, and a large number of high-rise buildings in new residential areas also cause inconvenient escape; once a fire breaks out in urban areas, it will cause heavy fire casualties very likely. Most of the fires in urban building environments such as office buildings, hotels, and office buildings are Class A fires, and small-scale Class B fires may also occur; therefore, the selection and proportioning of urban building fire extinguishing agents should focus on quickly extinguishing Class A fires. Class B fires, a small amount of functional components for extinguishing Class B fires are added; in order to prevent electric shock accidents, the main power supply must be cut off first, and the safe use distance should be pai...

Embodiment 3

[0058] Embodiment 3 Underground building and vehicle, warship anti-fire extinguishing agent

[0059] Fires in civil air defense underground buildings or ordinary underground buildings, vehicles, ships, etc. can be regarded as fires in confined spaces. In order to prevent casualties, the fire extinguishing agent must be efficient, extinguish the fire in the shortest possible time, and prevent smoldering; In addition, the dilution function of the fire extinguishing agent should release as little gas as possible, such as carbon dioxide, ammonia, nitrogen, etc., to prevent personnel from hypoxia. Therefore, the use of gas-producing components such as carbonates, bicarbonates, ammonium salts, and organic amines should be abandoned in the selection of ingredients for fire extinguishing agents for underground buildings, vehicles, and ships. See Table 6 for the various performances of fire extinguishing agents for underground buildings, vehicles, and ships, and see Table 7 for example...

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PUM

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Abstract

The invention discloses a built-up synergetic class-A / B water extinguishing agent series. Class-A fires caused by solid substances (such as woods, cottons, wools, linens, paper) and products thereof and class-B fires caused by liquid or melted solids such as gasoline, kerosene, diesel oil, crude oil, methanol, ethanol, asphalt, paraffin waxes and the like can be put out rapidly through the functions such as heat absorption and cooling, diluting and smothering, insulating and covering, suppressing and blocking combustion chains, and the like which are synergetically performed by various extinguishing functional components, and a high-temperature-resistant thermal-insulation and fire-retarding covering layer is formed on the surface of an inflammable matter by various after-combustion functional components so as to achieve the effect of after-combustion resistance. Because the class A / B fires relate to multiple occasions of daily life and production activities, the extinguishing agent disclosed by the invention can be used in the fields of home fire prevention and extinguishing, urban architecture fire prevention and extinguishing, oil depot and gasoline station fire prevention and extinguishing, vehicle and ship fire prevention and extinguishing, forest and grassland fire prevention and extinguishing, mine fire prevention and extinguishing, confined spaces (such as civil air-defense architectures) fire prevention and extinguishing.

Description

technical field [0001] The invention relates to a water-based fire extinguishing agent used for fighting Class A and B fires; specifically, it is a compound aqueous fire extinguishing agent formed by adding various functional components into water. Background technique [0002] Fire refers to the disaster caused by burning out of control in time or space. Among various disasters, fire is one of the main disasters that most frequently and commonly threaten public safety and social development. Fire not only destroys material property, causes chaos in social order, pollutes and destroys the ecological environment, but also directly or indirectly endangers lives. Therefore, preventing the occurrence of fire and extinguishing the fire quickly and efficiently after the fire is a very important task in life and production. [0003] The combustion reaction of fire is a flaming combustion reaction, and the process of extinguishing the fire is the process of destroying the formatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/06A62D1/00
Inventor 潘功配陈昕李燕朱顺官
Owner NANJING UNIV OF SCI & TECH
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