Coke drum bottom de-heading system

摘要

The present invention features a coke drum de-heading system that includes a de-header valve. The de-header valve includes: (1) a main body; (2) a live loaded seat assembly coupled to the main body and comprising a dynamic, live loaded seat, a live seat adjustment mechanism coupled to the main body and designed to control and adjust the force and resulting seat load of the dynamic, live loaded seat, and a force transfer module in juxtaposition to the dynamic, live loaded seat for transferring the force from the live loaded seat adjustment mechanism to the dynamic, live loaded seat; (3) a static seat positioned opposite from and counteracting or counterbalancing the dynamic, live loaded seat; and (4) a blind or sliding blind capable moving in a linear, bi-directional manner within the de-header valve and between the dynamic, live loaded seat and the static seat.

主权项

1. A coke drum de-heading system comprising:
a coke drum having a flanged orifice; a de-header valve removably coupled to said flanged orifice of said coke drum and comprising: a body a first seat attached to the body; a second seat aligned in opposition to the first seat attached to the body; and a blind actuated by an actuator, said blind capable of moving in a bi-directional manner within said de-header valve between an exterior surface of the first and the second seat to control the opening and closing of said de-header valve and to shear said coke from said blind when said blind is caked with coke; wherein the exterior surface of the second seat includes a groove into which grease containing solid lubricants is flowed to provide lubrication between the exterior surface of the second seat and the blind while the blind is moved in the bi-directional manner, the groove including one or more channels through which the grease is injected into the groove; and wherein the body contains one or more channels which connect to the one or more channels in the groove through which the grease is flowed from an exterior of the body into the one or more channels in the groove.