초록 ▼

A coke drum skirt to minimize the stresses experienced by the coke drum and the supporting structure of the coke drum is described. The skirt includes one circumferential horizontal plate attached to the coke drum, and the circumferential horizontal plate is slidingly sandwiched between a lower supp

A coke drum skirt to minimize the stresses experienced by the coke drum and the supporting structure of the coke drum is described. The skirt includes one circumferential horizontal plate attached to the coke drum, and the circumferential horizontal plate is slidingly sandwiched between a lower supporting plate that supports the weight of the drum through the circumferential horizontal plate and an upper retaining plate that prevents the coke drum from tipping or falling over. The upper retaining plate may be embodied as a series of retaining clips that also keep the coke drum centered and prevent rotation of the coke drum. The upper and lower plates are anchored to a concrete support base. The sliding connection of the plates allows the coke drum to thermally expand and contract while reducing stresses and metal fatigue from the typical fixed securing of the coke drum to the support base.

대표청구항 ▼

What is claimed and desired to be secured by Letters Patent is: 1. A coke drum skirt that provides a secure connection between a coke drum and a support base while simultaneously providing for reduced-stress thermal expansion and contraction of the coke drum comprising:a coke drum;a support structur

What is claimed and desired to be secured by Letters Patent is: 1. A coke drum skirt that provides a secure connection between a coke drum and a support base while simultaneously providing for reduced-stress thermal expansion and contraction of the coke drum comprising:a coke drum;a support structure for the coke drum attached to a support base;a substantially-horizontal center plate with an upper surface and a lower surface, wherein the center plate is attached to the coke drum;a lower plate having a substantially-horizontal upper surface, the lower plate being attached to the support structure; andan upper plate having a substantially-horizontal lower surface, the upper plate being attached to the support structure, wherein the lower surface of the upper plate is separated from the upper surface of the lower plate, wherein the center plate is structured to be located in the space defined between the upper surface of the lower plate and the lower surface of the upper plate so as to slidingly engage the lower plate and upper plate.