LINKED COKE DRUM SUPPORT

• US 20090236212A1
• Filed: 03/20/2009
• Published: 09/24/2009
• Est. Priority Date: 01/23/2008
• Status: Active Grant

• Current Assignee: DeltaValve, LLC (Circor International Incorporated)
• Original Assignee: Curtiss-Wright Flow Control Corporation (Curtiss-Wright Corporation)
• Inventors: Lah, Ruben F.
• Granted Patent: US 8,440,057 B2
• Time in Patent Office: Days
• US Class Current: 202/266
• CPC Class Codes: C10B 1/04 Vertical retorts
• CPC Class Codes: C10B 55/00 Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material cracking oils C10G

Abstract

A linked coke drum connection to minimize the stresses experienced by the joint between the coke drum and the supporting structure of the coke drum is described. The connection may be attached to a circumferential connection plate attached to the coke drum or directly to the drum. Some embodiments connect to a segmented circumferential connection plate. The connection includes a coke drum link, a connecting link, and a ground link. The links are pivotally connected with connecting pins. As the coke drum is heated and expands, the connecting link pivots outwardly about a point centered in the connecting pin in the ground link.

Claims

1. A linked coke drum support providing a secure yet reduced stress connection between a coke drum and a fixed support structure, the linked support comprising:

a circumferential connection plate welded about the circumference of a coke drum;

a fixed support structure capable of supporting the weight of the coke drum during operation of the drum; and

a pivoting linkage assembly comprising;

a coke drum link attached to said circumferential connection plate;

a ground link attached to said support structure; and

a connecting link pivotally attached at one end to said coke drum link and attached at the other end to said ground link.

2. A linked coke drum support as recited in claim 1, wherein the circumferential connection plate is segmented.

3. A linked coke drum support as recited in claim 1, wherein the coke drum link, the connecting link and the ground link are pivotally connected by connecting pins.

4. A linked coke drum support as recited in claim 3, wherein the connecting pins are coated to reduce friction.

5. A linked coke drum support as recited in claim 2, wherein each coke drum link is attached to a separate segment of the segmented circumferential connecting plate.

6. A linked coke drum support providing a secure yet reduced stress connection between a coke drum and a fixed support structure, the linked support comprising:

a coke drum link attached directly to a coke drum;

a ground link attached to a fixed support structure; and

a connecting link pivotally attached to said coke drum link and said ground link.

7. A linked coke drum support as recited in claim 6, wherein the pivotal attachment between the coke drum link, connecting link and ground link is accomplished with connecting pins.

8. A linked coke drum support as recited in claim 6, wherein the ground link is affixed to the fixed support structure.