Roots fan in the process of purchasing the first need to understand its type, so that you can choose a more suitable for their own Roots fan, about the type of Roots fan I take you to understand.
1, Roots fan in accordance with the different ways of working can be roughly divided into single-stage and double-stage points, in which there is only a compression stage of the blower, we call single-stage fan, and two single-stage fan in series, two consecutive compression of the gas fan we call double-stage fan.
2, according to the number of impeller head: two-leaf Roots fan and three-leaf Roots fan;
3, according to the use of points: kiln fan, gasification fan, aeration fan, etc.;
4, according to the type of medium: air fan, gas fan, hydrogen fan, sulfur dioxide fan, etc.;
5、According to the transmission mode: direct link fan and band link fan, etc.; according to the cooling mode: air cooler, water cooler and counter-current cooling fan, etc.;
6, according to the structure type: vertical fan, horizontal fan, vertical axis fan, dense group fan;
7, according to the seal type: labyrinth seal, ring seal, packing seal and mechanical seal and other types of fan.