Importance

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Abstract

The grit removal efficiency of a hydrocyclone desander is greatly improved by providing a curved plate within the separation chamber, positioned along one side of the chamber such that the incoming fluid stream is directed toward the concave surface of the curved plate. The curvature of the plate is a circular arc, preferably about a quarter circle. The trailing edge of the curved plate forms a 90° drop-off in the fluid flow which introduces an eddy region along the trailing edge. This eddy region contains a stagnant pressure zone, allowing particles to more easily drop out of the higher velocity inlet flow profile, further enhancing removal of the sand via the vortex dynamic. The plate can have grooves with a helical pitch inclined toward the accumulation end of the desander which help further channel the fluid flow and increase vortex velocity.

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First Claim