ROTARY SWIRLER Russian patent published in 2012 - IPC B01D45/16 

FIELD: process engineering.

SUBSTANCE: invention relates to gas or fluid swirlers incorporated with cyclone fluid drop separators to be used in chemical, oil-and-gas industries, etc. Proposed swirler is made up of tape bent along straight lines and arranged at an angle to tale lengthwise edges. Said tape is bent to make hollow case. Case represents a torus part with wavy multistart screw birecurvate surface provided with screw grooves inside and outside said case arranged at angle to its axis in the form of curved pockets with centers of curvature located outside and inside case cross-section. Case is made up of sections, each being made up of annular sector made from strip coiled to make different-size quadrangles with two parallel sides. Strip is coiled into ring with multifaceted surface. Said sections are interconnected by free sides of said quadrangles in the form of hollow case to make multistart screw triangular surfaces and multistart screw lines with pitch varying along case diameter.

EFFECT: variable direction of fluid or gas flows, expanded performances.

8 dwg