KR20060007351A - Clean- extinguishing agent by using phosphate compound - Google Patents

Abstract

The present invention can replace the halon extinguishing agent with excellent digestive performance and harmless to the human body.

It is a clean fire extinguishing agent that is easy to handle as a liquid at room temperature.

The components of the fire extinguishing agent are liquids at room temperature in the HFCF-based compounds, and GWP and ODP

Low levels of 2,2-dichloro1,1,1-trifluoroethane, dichlorofluoroethane,

dichloropentafluoropropane and phosphorus flame retardant and isopropenyl-1

It contains -methylcyclohexene as a component.

2,2-dichloro1,1,1-trifluoroethane, dichlorofluoroethane, dichloropentafluoropropane, phosphorus flame retardant, isopropenyl-1-methylcyclohexene

Description

Clean extinguishing agent using phosphorus compound {CLEAN- EXTINGUISHING AGENT BY USING PHOSPHATE COMPOUND}

   Large buildings and industrial facilities are on the rise due to population growth and industrial development.

   As a result, disasters caused by fires are increasing.

   Several types of fire extinguishing agents used for extinguishing during such disasters have also been developed.

   Although commercially available, extinguishing performance, handling convenience, environmental pollution due to ozone layer destruction,

   Considering the secondary damage caused by digestion, there is no perfect extinguishing agent.

   It is true.

   The types and advantages and disadvantages of extinguishing agents on the market so far are as follows.

   First of all, the foaming agent is suitable for cooling and fire class A B C, and the possibility of re-ignition is low.

   Electrically conductive and low permeability, especially in chemical foam

   Difficult to use by freezing. Mechanical foam extinguishing agents and mixing equipment

   Therefore, there is a problem in using it widely.

   powder extinguishing agent is excellent in rapid fire extinguishing and excellent extinguishing ability.

   Permeability is poor and there is a possibility of re-ignition, especially secondary digestion after digestion

   Difficulty in securing visibility

   Carbon Dioxide Extinguishing Agent has no toxic product in permeability and non-conductive digestion

   However, it is inefficient for digestion and ineffective for class A digestion.

   It is low, long spinning is difficult, and there is a possibility of secondary damage by low temperature.

   The halon extinguishing agent that overcomes these shortcomings has excellent extinguishing performance and has a secondary effect even after spinning.

   Almost no salt, but halon acts as a destructive factor in the ozone layer

   In accordance with the Protocol, its use has been gradually restricted and production will be completely discontinued.

   Therefore, the currently developed fire extinguishing agent is a halon excellent in such a digestive performance

   Replaceable, low Global Warming Index (GWP) and Ozone Depletion Index (ODP)

   The focus is on clean extinguishing agents that do not have secondary damage after digestion.

   Currently, the main extinguishing agent replacing halon is HCFC extinguishing agent such as FM-200.

   It can be an alternative.

   These HCFC-based fire extinguishing agents replaced hydrogen in place of CFC-based Br.

   Through the role of a subcatalyst that blocks combustion reactions or suppresses the chain reactions of combustion

   Hazardous substances such as hydrogen chloride, fluoride and chlorine gas when burned by extinguishing ash.

   There is a disadvantage that the gas is discharged and the extinguishing performance is lowered.

   In addition, gaseous extinguishing agents that replace halons, such as conventional HCFC compounds,

  Using oxygen and nitrogen or sulfur ether ((JP2001-95945, JP2003-750), tertiary

   Extinguishing agents modified with amine (JP2000-70400) and sulfide (JP2003-750) compounds

   Although it has been reported, it is due to the difficulty in securing cost and raw material as well as extinguishing performance.

   There are a lot of problems with dissolving.

  The present invention is low in ODP and GWP, no secondary pollution after digestion and economical HCFC

  2,2-dichloro- which is easy to handle because it exists in liquid state at room temperature.

   1,1,1-trifluoroethane (ODP = 0.02, GWP = 93,120, BP = 27 degrees), dichlorofluoro-

   ethane (ODP = 0.11, GWP = 630,700, BP = 32 degrees), dichloropentafluoropropane

   Use a fluorochlorocarbon such as (ODP = 0.025, GWP = -180, BP = 54 degrees).

   These substances have poor digestive performance when used alone, and hydrogen chloride oil during digestion.

   Sea gas is emitted.

   The present inventors have tried to eliminate these disadvantages in the above fluorochlorocarbon compound.

   Phosphorus-based flame retardants and isopropenyl-1-methylcyclohexene are added to

   It has a synergistic effect on digestion and improves digestion performance.

   The phosphorus-based flame retardant mentioned in the present invention is not particularly limited.

   For example, non-halogen phosphate esters include trimethyl phospate. triethylphosphate,

   triphenylphosphate, tricresylphosphate, cresyldiphenylphosphate,

   2-ethylhexyldiphenylphosphate, tributhylphosphate, trixylenephosphate,

   various aromatic condensation with tri2-ethylhexylphosphate, tributhoxyethylphosphate

  Ester compounds can be used, and as halogen phosphate ester

  tris (chloroethyl) phophate, tris (chloropropyl) phophate, tris (dichloropropyl)

  It contains phophate and various halogen condensed phosphate ester phosphorus flame retardants.

   These phosphorus flame retardants are not compatible with the above fluorochlorocarbon compounds.

   Extinguishing capacity decreases when used over 20%, and cleans when used a lot due to high BP

   Its role as a fire extinguishing agent is less than 10% is preferable.

   Extinguishing agent of the present invention exists in the liquid state at room temperature, so the existing gas-based

  It is easier to handle than the topic and can be easily made without any special device.

   It has a long radiation distance and does not need to control the fire closely.

  The constituent of the present invention is 2,2-dichloro1,1,1 which is a liquid at room temperature in HCFC chemicals.

  more than 80% -trifluoroethane, dichlorofluoro-ethane, dichloropentafluoropropane

  And less than 20% of various phosphorus flame retardants and less than 5% of isopropenyl-1-methylcyclohexene

  It is made up of ingredients.

 Example

   Put 7 ml of methanol ethyl acetate toluene water solution in a 50 mm diameter 20 mm container

  After igniting the fire, use the following extinguishing agent to spray extinguishing fluid.

  Sprayed until fire goes out.

  It was carried out three times in this manner and averaged.

   1) 2,2-dichloro1,1,1-trifluoroethane 93% +

     TMP 5% + isopropenyl-1-methylcyclohexene 2%

   2) 2,2-dichloro1,1,1-trifluoroethane 95% +

      TMP 3% + isopropenyl-1-methylcyclohexene 2%

   3) 2,2-dichloro1,1,1-trifluoroethane 90% +

     TMP 5% + isopropenyl-1-methylcyclohexene 5%

   4) 2,2-dichloro1,1,1-trifluoroethane 75% + dichloropentafluoropropane

     10% + dichlorofluoroethane 10% +

     TMP 3% + isopropenyl-1-methylcyclohexene 2%

  5) 2,2-dichloro1,1,1-trifluoroethane 55% + dichloropentafluoropropane

     20% + dichlorofluoroethane 20% +

     TMP 3% + isopropenyl-1-methylcyclohexene 2%

 Comparative example

    In the same manner as in the above embodiment, the following drugs were each administered three times.

   1) 2,2-dichloro1,1,1-trifluoroethane 100%

   2) 2,2-dichloro1,1,1-trifluoroethane 95% +

      isopropenyl-1-methylcyclohexene 5%

   3) dichlorofluoroethane 95% +

       isopropenyl-1-methylcyclohexene 5%

   4) dichloropentafluoropropane 100% +

      isopropenyl-1-methylcyclohexene 5%

Exam number Example Comparative example One 2 3 4 5 One 2 3 4 Spray amount (ml) 11.2 9.8 14.7 18.6 21.2 14.3 15.8 20.7 16.9

  * Amount of spray is average of 3 times injected until drug is digested

   -Better performance than existing HCFC fire extinguishing agents.

    Liquid at room temperature for easy handling.

   Longer radiation than conventional halon and HCFC extinguishing agents

    There is no need for safety.

Claims (1)

     a) more than 80% by weight of 2,2-dichloro1,1,1-trifluoro alone or in combination            such as ethane, dichlorofluoroethane, dichloropentafluoropropane            fluorochlorocarbon compound and         b) isopropenyl-1-methylcyclohexene 5% or less         c) Clean extinguishers containing up to 20% of phosphorus flame retardants;