Axial swirl device for a contact and separation member

An axial swirl device for a contact and separation member for mass-exchange and separation apparatuses comprising:

• a hollow sleeve, one end of said sleeve being closed and disposed on an inlet side of fluid being swirled, the other end of said sleeve being open and disposed opposite to the closed end on an outlet side of fluid being swirled;
• vanes located on the outer surface of said sleeve, extending at an angle with respect to the longitudinal axis thereof in proximity to said open end of said sleeve, a swirl chamber defined by a continuation of the circumscribed outer surface of said vanes;
• a deflector means mounted inside said swirl chamber in coaxial relation to said sleeve at the open end thereof and made in the form of a body of revolution which is a continuation of the outer surface of said sleeve and which is so shaped that a tangent line to a generant of an outer surface of said body of revolution at the point most remote from said vanes is tilted toward the inner wall of the swirl chamber at an angle up to 15.degree. with respect to the longitudinal axis of said sleeve, the vanes having a circumscribed circle and the length of the deflector means being equal to 0.2 to 1.0 times the diameter of the circumscribed circle of the vanes and in which a streamline member is provided at the end of the sleeve in coaxial relation thereto, a through opening being provided in a wall of said streamline member to extend at an acute angle to the sleeve axis, the opening being located in a zone of intersection of the inner surface of the streamline member with the sleeve axis.