Protection And Safety Knowledge And Skills Of Thermal Insulation Protective Clothing

The thermal protective clothing can be divided into the following types according to the different temperature.

Fire safety clothing >1000 C

High temperature protective clothing <200 C

Fire insulation clothing >800 C

Industrial insulation clothing <800 C

Firemen's fire fighting clothing at <200 C

Misunderstandings in selection of thermal protective clothing

The fabric safety of industrial thermal insulation clothing is usually lower than that of thermal insulation clothing.

The composite aluminum foil on glass fiber is easy to fall off and heat radiation after use.

Low (>70%) and fire insulation clothing substrates usually use aramid high temperature resistant materials. The surface aluminum foil is sprayed onto the substrate at high speed, the surface is smooth, not easy to fall off, the thermal radiation reflection efficiency is high (>90%), and the mirror of the windows is different.

The thermal radiation reflectance is >95%, and the industrial thermal insulation clothing is usually made of chrome coated glass mirror or polyester pparent mirror, which can not reflect the heat radiation more than 500 degrees, and is easy to burn into eyes and face.

B) use thermal insulation clothing as a fire protection garment.

The pattern of the thermal insulation clothing can be the same as that of the fire protection clothing, but the thermal insulation clothing can not touch the flame and can not enter the fire scene operation.

Otherwise, it will cause clothing damage.

C) confusion between thermal insulation clothing and fire protection chemical clothing.

The thermal insulation clothing is not suitable for firemen to wear when working with radioactive substances, biological substances and dangerous chemicals during fire fighting and rescue.

The function of thermal insulation clothing is to insulate heat.

The radiation heat of over 70% of the fire source is reflected off, the remaining heat is blocked outside the insulation layer, and the temperature rise in the clothing is not more than 25 degrees.

D) confuse high temperature protective clothing and thermal insulation clothing.

The difference between thermal insulation clothing and high temperature protective clothing is mainly the difference between ambient temperature and fire source.

The heat radiation effect of the high-temperature protective clothing is poor, and the thermal insulation clothing can generally reflect 70% of the thermal radiation.

The high temperature protective clothing is mainly used in the environment where the ambient temperature is less than 300 degrees.

Thermal insulation clothing is mainly used for ambient temperature greater than 300 degrees, or there are occasions where metal melts are spattered.

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The outer material of fireproof chemical protective clothing is aluminum foil, the inner layer is chemical and flame retardant material, which has certain reflectivity to radiant heat, but it can not be used as thermal insulation clothing.

In high calorie environment, its chemical defense ability will be greatly degraded.

Fire prevention and chemical protective clothing is mainly directed against chemical disasters, which can not be isolated from the heat sources of fire, but only protect against flash heat.

It is mainly used for hazardous environment of flammable chemicals.