Title:
SYSTEM FOR ENHANCED RECOVERY OF TANGENTIAL ENERGY FROM AN AXIAL PUMP IN A LOOP REACTOR
Document Type and Number:
WIPO Patent Application WO/2013/013125
Kind Code:
A3
Abstract:
An axial pump system cooperative with an elbow or other pipe section improves conversion of tangential to axial flow of a slurry flowing through a loop reactor by including both primary and secondary outlet guide vanes in the pipe section. The secondary guide vanes have "see through" access from the outlet end of the pipe section, while the primary guide vanes have "see through" access from the inlet side of the pipe section. Pump energy efficiency is improved, and friction of polymer particles on the reactor loop and pump sidewalls is reduced, thereby reducing the amount of polymer decay and increasing the percentage of useable and saleable product obtained from the reactor. Guide vanes can be straight or curved. Curved guide vanes can have inlet angles approximating the absolute flow angle of the fluid, and/or outlet angles approximating 0 degrees relative to the meridianal axis of the pipe section.
Inventors:
LEBOEUF RONALD SYLVIO (US)
RUSSELL DONALD PAUL (US)
RUSSELL DONALD PAUL (US)
Application Number:
PCT/US2012/047544
Publication Date:
March 21, 2013
Filing Date:
July 20, 2012
Export Citation:
Assignee:
FLOWSERVE MAN CO (US)
LEBOEUF RONALD SYLVIO (US)
RUSSELL DONALD PAUL (US)
LEBOEUF RONALD SYLVIO (US)
RUSSELL DONALD PAUL (US)
International Classes:
F04D29/44; C08F2/01; F04D13/08; F04D29/24
Foreign References:
| US20110046322A1 | 2011-02-24 | |||
| US4665572A | 1987-05-19 | |||
| US5496450A | 1996-03-05 | |||
| US20040132928A1 | 2004-07-08 |
Attorney, Agent or Firm:
BURUM, Douglas P et al. (547 Amherst St. 3rd Floo, Nashua New Hampshire, US)
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