Split driveshaft pump for hazardous fluids
Abstract
A pump having a split driveshaft for use in pumping hazardous fluids wherein only one driveshaft becomes contaminated by the fluid while the second remains isolated from the fluid. The pump has a first portion and a second portion. The first portion contains a pump motor, the first driveshaft, a support pedestal, and vapor barriers and seals. The second portion contains a second, self-lubricating driveshaft and an impeller. The first and second driveshafts are connected together by a releasable coupling. A shield and a slinger deployed below the coupling prevent fluid from the second portion from reaching the first portion. In operation, only the second assembly comes into contact with the fluid being pumped, so the risk of contamination of the first portion by the hazardous fluid is reduced. The first assembly can be removed for repairs or routine maintenance by decoupling the first and second driveshafts and disconnecting the motor from the casing.
- Inventors:
-
- (Aiken, SC)
- Evans, GA
- Orchard Park, NY
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 869696
- Patent Number(s):
- 5380162
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04D - NON-POSITIVE-DISPLACEMENT PUMPS
F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05B - INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- split; driveshaft; pump; hazardous; fluids; pumping; contaminated; fluid; remains; isolated; portion; contains; motor; support; pedestal; vapor; barriers; seals; self-lubricating; impeller; driveshafts; connected; releasable; coupling; shield; slinger; deployed; below; prevent; reaching; operation; assembly; contact; pumped; risk; contamination; reduced; removed; repairs; routine; maintenance; decoupling; disconnecting; casing; pump motor; prevent fluid; hazardous fluid; split driveshaft; hazardous fluids; /417/
Citation Formats
Evans, II, Thomas P., Purohit, Jwalit J, and Fazio, John M. Split driveshaft pump for hazardous fluids. United States: N. p., 1995.
Web.
Evans, II, Thomas P., Purohit, Jwalit J, & Fazio, John M. Split driveshaft pump for hazardous fluids. United States.
Evans, II, Thomas P., Purohit, Jwalit J, and Fazio, John M. Sun .
"Split driveshaft pump for hazardous fluids". United States. https://www.osti.gov/servlets/purl/869696.
@article{osti_869696,
title = {Split driveshaft pump for hazardous fluids},
author = {Evans, II, Thomas P. and Purohit, Jwalit J and Fazio, John M},
abstractNote = {A pump having a split driveshaft for use in pumping hazardous fluids wherein only one driveshaft becomes contaminated by the fluid while the second remains isolated from the fluid. The pump has a first portion and a second portion. The first portion contains a pump motor, the first driveshaft, a support pedestal, and vapor barriers and seals. The second portion contains a second, self-lubricating driveshaft and an impeller. The first and second driveshafts are connected together by a releasable coupling. A shield and a slinger deployed below the coupling prevent fluid from the second portion from reaching the first portion. In operation, only the second assembly comes into contact with the fluid being pumped, so the risk of contamination of the first portion by the hazardous fluid is reduced. The first assembly can be removed for repairs or routine maintenance by decoupling the first and second driveshafts and disconnecting the motor from the casing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}