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防爆軸流式通風(fēng)機(jī)是我國(guó)八十年代在BT30-11的基礎(chǔ)上改進(jìn)設(shè)計(jì)的新型風(fēng)機(jī)，它與BT30-11風(fēng)機(jī)相比具有明顯優(yōu)點(diǎn)： ① 結(jié)構(gòu)更合理； ② 性能有較大提高，全壓效力為89.5%; 

The explosion-proof axial flow fan is a new type of fan designed on the basis of bt30-11 in 1980's in China. Compared with bt30-11 fan, it has obvious advantages: 1) the structure is more reasonable; 2) the performance is greatly improved; the total pressure efficiency is 89.5%;