What is the hydraulic load factor for a fluid made up of oils and water being stirred by a three-blade propeller with the blade fully submerged under the mixer? Can you also help with the diameter of the shaft? Details are: power equals 2.2 kw; length of shaft equals 2.228s; speed equals 460 rpm; and impeller diameter is 390 mm.
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Re: Hydraulic load factor for water, oil mix
22 February 2007 at 1:29pmThe following estimates should answer the questions:
Lateral hydraulic load: 59 N
Shaft bending load: 132 N m
Torsional load: 46 N mShaft diameter estimate: 31 mm
Shaft natural frequency: between 100 and 200 rpm
If used with a variable speed drive, do not allow the mixer to operate near the natural frequency.
These estimates are based on the limited information supplied in the question and should be reviewed by an engineer when more complete detailed information about the mixer is available.
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