skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: CONVECTION REACTOR

Abstract

An homogeneous nuclear power reactor utilizing convection circulation of the liquid fuel is proposed. The reactor has an internal heat exchanger looated in the same pressure vessel as the critical assembly, thereby eliminating necessity for handling the hot liquid fuel outside the reactor pressure vessel during normal operation. The liquid fuel used in this reactor eliminates the necessity for extensive radiolytic gas rocombination apparatus, and the reactor is resiliently pressurized and, without any movable mechanical apparatus, automatically regulates itself to the condition of criticality during moderate variations in temperature snd pressure and shuts itself down as the pressure exceeds a predetermined safe operating value.

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4182041
Patent Number(s):
US 2929767
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-14-016482
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-60
Country of Publication:
United States
Language:
English
Subject:
REACTOR TECHNOLOGY; CONFINEMENT; CONTROL; CONVECTION; DECOMPOSITION; FUELS; HEAT EXCHANGERS; HOMOGENEOUS REACTORS; ION RECOMBINATION; LIQUID FLOW; LIQUIDS; OPERATION; PATENT; PRESSURE; PRESSURE VESSELS; REACTOR SAFETY; REACTORS; SHUTDOWN; TEMPERATURE

Citation Formats

Hammond, R.P., and King, L.D.P. CONVECTION REACTOR. United States: N. p., 1960. Web.
Hammond, R.P., & King, L.D.P. CONVECTION REACTOR. United States.
Hammond, R.P., and King, L.D.P. 1960. "CONVECTION REACTOR". United States. doi:.
@article{osti_4182041,
title = {CONVECTION REACTOR},
author = {Hammond, R.P. and King, L.D.P.},
abstractNote = {An homogeneous nuclear power reactor utilizing convection circulation of the liquid fuel is proposed. The reactor has an internal heat exchanger looated in the same pressure vessel as the critical assembly, thereby eliminating necessity for handling the hot liquid fuel outside the reactor pressure vessel during normal operation. The liquid fuel used in this reactor eliminates the necessity for extensive radiolytic gas rocombination apparatus, and the reactor is resiliently pressurized and, without any movable mechanical apparatus, automatically regulates itself to the condition of criticality during moderate variations in temperature snd pressure and shuts itself down as the pressure exceeds a predetermined safe operating value.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1960,
month = 3
}
  • ABS>A rotating cover is described for a nuclear reactor cooled by a liquid metal, such as liquid sodium, which serves as a convection barrier to prevent the penetration of sodium vapors into the interior of the reactor. This cover is characterized by the fact that it is supported in such a fashion that it can be raised or lowered on a collar that is located in the interior of the reactor. (TSS)
  • A liquid metal-cooled nuclear reactor has a reactor vessel with a cover at the top thereof and is partly filled with liquid metal up to a given surface level, the liquid metal surface and the reactor-vessel cover defining therebetween a gas-filled space, at least one quasi-tight convection barrier being disposed in the space and subdividing it in elevation.
  • The apparatus comprises an annular cup solid with the component and surrounding its outer wall, a frusto-conical support surface having as axis the vertical axis of the component fixed at the perimeter of its large base to the passage into which the component passes and a closure element with rotational symmetry. The closure element has an upper part which rests on the support surface so as to totally close the annular space at the top and a part directed downwards constituted by a sleeve whose lower part goes into the cup. The cup fills up with liquid metal which condensesmore » when the reactor is operating, which ensures sealing between the sleeve and the cup. The invention is particularly applicable to fast neutron nuclear reactors cooled by liquid sodium.« less
  • A hollow metallic ring structure is secured to the periphery of the diagrid support and located within an internal annular space formed between the lateral neutron shield of the reactor core and an inner tank placed within a primary vessel. The ring structure is smaller in width than the annular space, has a maximum height equal to that of the reactor core, and is provided with partition-walls and holes for producing pressure drops and reducing convection currents.
  • A nuclear reactor is described comprising: a closed vessel containing a pool of secondary coolant; a reactor core located within the pool; an inlet conduit system for directing primary coolant to the lower end of the core; pumping means for effecting flow of the primary coolant into the inlet conduit system; an outlet conduit system located above the core for receiving coolant from the upper end of the core and carrying it to an exterior outlet pipe; and pressure reduction means for reducing fluid pressure in the inlet conduit system adjacent all of the one or more opening therein bymore » locally increasing fluid velocity adjacent all of the one or more openings.« less