Submersible canned motor mixer pump
Abstract
A mixer pump is described used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the mixer pump. 10 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Westinghouse Hanford Co
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 541731
- Patent Number(s):
- 5674057
- Application Number:
- PAN: 8-398,412; TRN: 97:019550
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- DOE Contract Number:
- AC06-87RL10930
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 7 Oct 1997
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 05 NUCLEAR FUELS; PUMPS; MIXERS; HIGH-LEVEL RADIOACTIVE WASTES; PUMPING; MIXING; LIQUID WASTES; SLUDGES; DESIGN; ELECTRIC MOTORS; PULVERIZERS; COMMINUTION
Citation Formats
Guardiani, R F, and Pollick, R D. Submersible canned motor mixer pump. United States: N. p., 1997.
Web.
Guardiani, R F, & Pollick, R D. Submersible canned motor mixer pump. United States.
Guardiani, R F, and Pollick, R D. Tue .
"Submersible canned motor mixer pump". United States.
@article{osti_541731,
title = {Submersible canned motor mixer pump},
author = {Guardiani, R F and Pollick, R D},
abstractNote = {A mixer pump is described used in a waste tank for mobilizing high-level radioactive liquid waste having a column assembly containing power cables, a motor housing with electric motor means which includes a stator can of a stator assembly and a rotor can of a rotor assembly, and an impeller assembly with an impeller connected to a shaft of the rotor assembly. The column assembly locates the motor housing with the electric motor means adjacent to the impeller which creates an hydraulic head, and which forces the liquid waste into the motor housing to cool the electric motor means and to lubricate radial and thrust bearing assemblies. Hard-on-hard bearing surfaces of the bearing assemblies and a ring assembly between the impeller and electric motor means act to grind down large particles in the liquid waste flow. These larger particles are received in slots in the static bearing members of the radial bearing assemblies. Only solid waste particles smaller than the clearances in the system can pass there through, thereby resisting damage to and the interruption of the operation of the mixer pump. 10 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 07 00:00:00 EDT 1997},
month = {Tue Oct 07 00:00:00 EDT 1997}
}