Cyclone separator

Details Cyclone separator Cyclone separator

1987-02-27

1988-12-27

Sever, Frank

Liquid purification or separation

Tangential flow or centrifugal fluid action

209144, 209211, B01D 2900, B01D 3700

Patent

active

047939249

DESCRIPTION:

BRIEF SUMMARY
According to the present invention there is provided a cyclone separator comprising at least a primary portion having generally the form of a volume of revolution and having a first end and a second end, the diameter at said second end being less than at said first end, a plurality of n inlets, where n>1, each said inlet having at least a tangential component at or adjacent said first end for introducing feed to be separated into the cyclone separator and the separator further including at least two outlets, in which cyclone separator the following relationship applies:
where d.sub.1 is the diameter of the said primary portion where flow enters (but neglecting any feed channel d.sub.ix is twice the radius at which flow enters the cyclone through the x.sup.th inlet (i.e. twice the minimum distance of the tangential component of the inlet centre line from the axes) and ##EQU1##
where A.sub.ix is the total cross sectional area of the x.sup.th inlet at entry to the cyclone separator in a plane parallel to the axis of the cyclone separator and perpendicular to the component of the inlet centre line not parallel to the cyclone axis, and where ##EQU2## and where d.sub.2 is the diameter of the primary portion at said second end and is measured at a point z.sub.2 where the condition first applies that ##EQU3## for all z>z.sub.2 where z is the distance along the cyclnne separator axis downstream of the plane containing the inlet and d is the diameter of the cyclone at z, and further z=0 being the axial position of the weighted areas of the inlets' such that the injection of angular momentum into the cyclone separator is equally distributed axially about said axial position where z=0 and being defined by ##EQU4##
where z.sub.x is the axial position of the x.sup.th inlet, and further ##EQU5## is from 3 to 12
In one form the separator may be characterized in that where the plurality of inlets are not axially staggrred and/or do not include feed channels which are inwardly spiralling at least part of the generator of the primary portion is curved.
In one form the cyclone separator may have an inlet portion having generally the form of a volume of revolution with n inlets where n>1 (each inlet preferably tangential, and preferably with an inwards spiralling feed channel such as an involute entry) for introducing feed to be separated into the cyclone separator and, adjacent to the inlet portion and substantially coaxial therewith, a generally axially symmetrical separation portion converging (preferably uninterruptedly) into a downstream portion. Where the feed channels do not spiral inwards, or where they are not axially staggered, at least part of the generator of the inlet portion and/or of the separation portion is curved. The inlet portion may have an axial overflow outlet opposite the separation portion (i.e. in its end surface). In the cyclone separator, the following relationships (i)-(v) may apply: where d.sub.1 is the diameter of the cyclone in the inlet portion where flow enters (but neglecting any feed channel), d.sub.i is twice the radius at which flow enters the cyclone through the x.sup.th inlet (i.e. twice the minimum distance of the tangential component of inlet centreline from the axis, and ##EQU6## A.sub.ix is the total cross-sectional area of the x.sup.th inlet measured at entry to the cyclone in a plane parallel to the axis of the cyclone and perpendicular to the component of the inlet centreline not parallel to the cyclone axis, ##EQU7## d.sub.2 is the diameter of the cyclone where the inlet portion joins the separation portion the point of junction being defined as being at the axial position z.sub.2 (measured away from the inlet plane where z=0) where the condition first applies that: ##EQU8## where d is the cyclone diameter at z, z=0 being the axial position of the weighted areas of the inlets such that the injection of angular momentum into the cyclone is equally distributed axially about it and being defined by ##EQU9## where Z.sub.x is the axial position of the x.sup.th inlet, d.sub.3

REFERENCES:
patent: 4576724 (1986-03-01), Colman et al.

Affiliated with

Also associated with

Rating

Cyclone separator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cyclone separator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cyclone separator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-866858