, explosion proof is electric the overall design train of thought of the product

1, summarize

Ⅱ kind blame mine uses explosion proof electric equipment 90% it is to be used at the industry such as oil, marine oil, petro-chemical, chemical industry and pharmacy (abbreviation petrifaction industry) , what the place of dangerous chemical work in these industries exists is combustible explode easily gas / steam sort is various, production, store, carry etc link tooling is complex and changeful, sort of source of release is various, explosive risk element is analysed hard decide. So, the type selecting of electric to explosion proof equipment, installation and use safeguard with explosion proof than mine electric equipment wants many complex.

Choose explosion proof electric equipment: The dangerous area that should satisfy man-trap to differentiate will choose type of corresponding electric explosion proof; 2 what should exist possibly according to dangerous environment is combustible explode easily gas / the sort of dust will choose explosion proof the level of electric equipment and temperature group are fastened; 3 it is to consider the impact of other ambient conditions to explosion proof function (for example: Chemistry is corroded, saline mist, high temperature is high rainwater of wet, sand and dust, or oscillatory influence) ; 4 it is to make sure installation uses maintenance characteristic; 5 it is to choose appliance to have explosion proof certificate of approval and state the product of corresponding attestation.

2, explosion proof is electric the environmental requirement of equipment application

A, have combustible explode easily gas / the environment of explosive danger sex of steam / work place.

The environment of B, explosive danger sex that has flammability dust / work place.

C, combustible explode easily gas / the environment that steam and flammability dust exist at the same time / work place, carry with its in workshop of finished product of solid state chemical industry, pack, say to weigh and in unit of besmear Fu technology, this kind of place is relatively common. As the development of modern project, this kind of circumstance will gain ground more, so, explosion proof of this kind of place is electric of equipment choose what had caused design branch and petrifaction company more and more to take seriously.

Caustic medium and other and special condition exist at the same time again below 3 kinds of afore-mentioned D, circumstances (high temperature is rainwater of tall wet, low temperature, arenaceous dirt, oscillatory) the environment of the influence / work place.

3, explosion proof the type selecting of electric equipment

According to the discretion of explosive risk level, gas / steam man-trap differentiates for: 0 areas, 1 area and 2 areas, their differentiate to basically depend on source of release (explosive risk source) release rate, of course, the metropolis such as the natural ingredient with the ability of the building construction in the place, ventilated establishment and located place differentiates to its influential, affect even very big.
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