The KLS Operates Over a Large Range of Operating Variables

The KLS is able to operate over a large range of operating variables

Turndown is not an issue for the Mueller KLS Helical Coil Separator. The patented helical coil geometry generates a high g swirl that works to remove contaminates from the gas stream. For contaminates to remain in the gas stream, the buoyancy and drag forces must overcome the inertial force created by the high g swirling action. Through CFD analysis, Mueller has found that even at minimum gas mass flows (1.5 lb/min) the helical coil produces nearly 200 g’s.

The high g centrifugal force acting on the contaminate particles is greater than the combined buoyancy and drag forces even at low gas flows. In addition to generating a high g swirl, the KLS geometry forces the gas to turn inward toward the center axis as it exits the gas channel outlet.

The transition from the outlet of the helical gas channels to the inlet of the clean gas outlet tube does two things: it makes following the gas path difficult because the gas is moving inward while the high g swirl is forcing the contaminate outward, and the radius of the swirling flow decreases due to the clean gas outlet tube geometry causing the inertial forces to increase. Combined, these attributes allow the KLS to operate across a wide range of operating variables without affecting the separation performance.




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