摘要 |
<p>A deheader valve is fitted onto an existing or new coke drum by initially positioning the body and valve, and then raising the valve to mate with the flange using a lifting device other than a chain fall. The vertical positioning of the deheader valve is preferably accomplished with a hydraulic or pneumatic piston, winch, scissor jack, ratchet jack, screw jack, and so forth. The distance traveled by the valve using these devices is more than 2 cm, commonly at least 20 cm, and in some installations up to 40 cm or more. In retrofit situations an oil inlet is provided in a side wall of the drum above the bottom drum flange.</p> |
申请人 |
FLUOR TECHNOLOGIES CORPORATION;ODER, JOHN, W.;ANTALFFY, LESLIE, P.;MARTIN, SAMUEL, A.;KIRKPATRICK, KENNETH, D.;KNOWLES, MICHAEL, B.;WEST, GEORGE, T. |
发明人 |
ODER, JOHN, W.;ANTALFFY, LESLIE, P.;MARTIN, SAMUEL, A.;KIRKPATRICK, KENNETH, D.;KNOWLES, MICHAEL, B.;WEST, GEORGE, T. |