Solids Control Equipments Manufacturer

Home > Service > Distribution regularities of hydrocyclone inner flow field

Distribution regularities of hydrocyclone inner flow field

2012-11-16

According experimental observation and checking, the flow field of hydrocyclone is symmetric distribution.

 

Any point speed in flow field all can be resolved into tangential, radial and axial velocity. At the same time, there are two kinds of liquid in flow field. One is the outward flow which is spiral flowing along the cone, the other is the introverted flow which is spiral flowing along the cone.

 

When outflow close to the desilting month it is divided into two parts. One part is changing flow direction to up and change into introverted flow, the other part flow direction is not changed, carrying big quality sand through desilting month to discharge. In the lower of overflow, because of the direction of introverted and out flow is adverse to form closed loop eddy. The eddy along hydrocyclone axis rotation, eddy inside roll-over from up to down.

 

Separation effect of hydrocyclone is bad, the main reason of separation efficiency is low is the inlet pipe pressure of hydrocyclone is exceed the prescribed scope; the viscosity of overflow is high; the spherical solid phase particles is less; bottom flow solid phase is decrease; bottom month is small and because inlet month drilling fluid solid phase content is too high led to hydrocyclone overload.