Coke drum bottom de-heading system
US6660131B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Mar 17, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K3/205
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention features a coke drum de-heading system that provides unique advantages over prior art de-heading systems, namely the de-heading of a coke drum without having to physically remove the head units. This is essentially accomplished using a specially designed dual seated, linear motion goggle blind gate valve, or de-header valve, that is removably coupled to and seals against the flanged portion of a coke drum much the same way a conventional head unit would be attached. The de-header valve is equipped with, among other things, a sliding blind that is contained and capable of moving within an upper and a lower seat, wherein one of such seats is a floating dynamic, live loaded seat that is capable of automatic adjustment through one or more loading zones so as to seal the blind between the upper and lower seats. The movement of the sliding blind serves to open and close the de-header valve, wherein in a closed position, the de-header valve is prepared to receive the resid byproduct feed from the refinery process used to manufacture coke. Once the drum is full, the de-header valve may be actuated (opened), wherein the coke that has accumulated on the blind is sheared…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.