Common operating conditions of propeller stirrer: n=100~500rpm, V=3~15m/s, common medium viscosity range: <2000 (centipoise). With a baffle or a draft tube, the axial circulation is stronger.
The paddle agitator is divided into two types: straight leaf and folded leaf. Common conditions are: n=1～100rpm, v=1.0～5.0m/s. Common medium viscosity range: <2000 (centipoise). Flow state: straight leaf: horizontal loop flow is mainly at low speed; runoff type when speed is high, and up and down circulation flow when there is baffle. Folding leaves: axial splitting, radial splitting and circumferential splitting. More in laminar flow, excessive flow state operation.
Open the turbine agitator commonly used operating conditions: n = 1 ~ 100rpm, v = 1 ~ 5m / s. Common medium viscosity range: <105 (centipoise) flow state: horizontal circumferential flow at different heights. For example, a leaf or angle steel blade can increase the worm gear near the blade. Laminar flow state operation.
Disc turbine agitator, divided into three types: straight leaf, folded leaf and back curved leaf. Common operating conditions: n=10～300rpm v=4～10m/s. Folding type V=2~6m/s. Common medium viscosity range: <5×104 (centipoise). Folded leaves, back curved leaves <104 (centipoise). Flow state: The straight leaves and the back curved leaves are radial flows.
When there is a baffle, it can be bounded by the blade, forming two upper and lower circulating streams. There is also an axial split in the hinges, and the liquid mixing above and below the disc is not as good as turning on the turbine.