Anti-erosion protrusions for wear surfaces in fluid conduits

Details Anti-erosion protrusions for wear surfaces in fluid conduits Anti-erosion protrusions for wear surfaces in fluid conduits

1984-12-14

1986-11-11

Nase, Jeffrey V.

Conveyors: fluid current

Conduit

With wear protection means

138 39, 285179, B65G 5352

Patent

active

046219536

ABSTRACT:
A fluid flow conduit having its interior wear surface containing multiple anti-erosion protrusions for reducing erosion caused by flow of fluids carrying abrasive particles. The anti-erosion protrusions are usually located on radial outer portion of an elbow, and are preferably pyramid-shaped and arranged in a staggered pattern relative to the fluid flow direction, but other similar shapes can be used. The protrusions can be made integral with the conduit interior wall, or attached to the wall by welding individual protrusions, or by welding to the wall curved plates each containing a row of protrusions. Such protrusions reduce erosion in conduits for particulate bearing fluid streams flowing at velocities over about 50 ft/sec, to disrupt the fluid flow pattern, reduce the velocity and change the angle of impingement of abrasive particles, in areas where high wear rates occur and substantially reduce the rate of wear on the conduit surface.

REFERENCES:
patent: 2834059 (1958-05-01), Hoelzel
patent: 3924901 (1975-12-01), Phillips
patent: 4004615 (1977-01-01), Stern et al.

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