Pump for molten metal or other fluid
Abstract
A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump combines elements of a bubble pump with a trap which isolates the vacuum or low pressure region from the gas used to create the bubbles. When used in a vacuum the trap prevents the pumping gas from escaping into the isolated region and thereby reducing the quality of the vacuum. The pump includes a channel in which a pumping gas is forced under pressure into a cavity where bubbles are formed. The cavity is in contact with a reservoir which contains the molten metal or other fluid which is to be pumped. The bubbles rise up into a column (or pump tube) carrying the fluid with them. At the top of the column is located a deflector which causes the bubbles to burst and the drops of pumped fluid to fall into a trap. The fluid accumulates in the trap, eventually forcing its way to an outlet. A roughing pump can be used to withdraw the pumping gas from the top of the column andmore »
- Inventors:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 869299
- Patent Number(s):
- 5312232
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F04 - POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS F04F - PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED {
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- pump; molten; metal; fluid; moving; temperature; fluids; vacuum; pressure; environment; method; pumping; combines; elements; bubble; trap; isolates; region; gas; create; bubbles; prevents; escaping; isolated; reducing; quality; channel; forced; cavity; formed; contact; reservoir; contains; pumped; rise; column; tube; carrying; top; located; deflector; causes; burst; drops; fall; accumulates; eventually; forcing; outlet; roughing; withdraw; assist; maintaining; pumping gas; pressure environment; pressure region; molten metal; temperature molten; /417/
Citation Formats
Horton, James A, and Brown, Donald L. Pump for molten metal or other fluid. United States: N. p., 1994.
Web.
Horton, James A, & Brown, Donald L. Pump for molten metal or other fluid. United States.
Horton, James A, and Brown, Donald L. Sat .
"Pump for molten metal or other fluid". United States. https://www.osti.gov/servlets/purl/869299.
@article{osti_869299,
title = {Pump for molten metal or other fluid},
author = {Horton, James A and Brown, Donald L},
abstractNote = {A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump combines elements of a bubble pump with a trap which isolates the vacuum or low pressure region from the gas used to create the bubbles. When used in a vacuum the trap prevents the pumping gas from escaping into the isolated region and thereby reducing the quality of the vacuum. The pump includes a channel in which a pumping gas is forced under pressure into a cavity where bubbles are formed. The cavity is in contact with a reservoir which contains the molten metal or other fluid which is to be pumped. The bubbles rise up into a column (or pump tube) carrying the fluid with them. At the top of the column is located a deflector which causes the bubbles to burst and the drops of pumped fluid to fall into a trap. The fluid accumulates in the trap, eventually forcing its way to an outlet. A roughing pump can be used to withdraw the pumping gas from the top of the column and assist with maintaining the vacuum or low pressure environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}
Works referenced in this record:
An Analytical and Experimental Study of Air-Lift Pump Performance
journal, April 1968
- Stenning, A. H.; Martin, C. B.
- Journal of Engineering for Power, Vol. 90, Issue 2