Screen basket vortex breaker for vessel

摘要

A vortex breaker fits over an outlet of a vessel. The breaker has a basket disposed on a base with an opening communicating with the vessel's outlet. The basket has a cylindrical sidewall screen with profiled wires arranged around bars that extend from the base. The basket also has a top screen attached to the sidewall screen. The top screen has wires arranged across a plurality of bars. Fluid flow passing through the screens is directed by the profiled wires and the bars. Below the top screen, a baffle plate diverts the fluid flow passing through the top screen to the periphery of the top plate. Inside the basket, a flow modifier has a vanes attached to the base and disposed radially around the base's opening. At least some of the vanes have cross-tees extending from the vane's sides to break the radially directed flow inside the basket.

主权项

1. A vortex prevention apparatus, comprising:
a screen basket disposing in a vessel for enclosing an outlet of the vessel, wherein the screen basket comprises:
a base having an opening communicating with the outlet;a sidewall screen having a plurality of first wires arranged around a plurality of first bars extending from the base, wherein each of the first wires comprises a profiled wire having a wider side exposed outside the basket and having a narrower side welded to the first bars; anda top screen positioned on the sidewall screen and having a plurality of second wires arranged across a plurality of second bars; and a flow modifier disposed within the basket adjacent the outlet, the flow modifier at least including a plurality of vanes disposed radially around the outlet, at least some of the vanes having cross-tees extending from sides of the vanes, wherein the flow modifier defines a space between each cross-tee and each adjacent vane, such that the cross tees are not directly connected, wherein at least one of the vanes does not have a cross-tee.