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Title: Nuclear reactor insulation and preheat system

Abstract

An insulation and preheat system for preselected components of a fluid cooled nuclear reactor. A gas tight barrier or compartment of thermal insulation surrounds the selected components and includes devices to heat the internal atmosphere of the compartment. An external surface of the compartment or enclosure is cooled, such as by a circulating fluid. The heating devices provide for preheating of the components, as well as maintenance of a temperature sufficient to ensure that the reactor coolant fluid will not solidify during shutdown. The external cooling limits the heat transferred to other plant structures, such as supporting concrete and steel. The barrier is spaced far enough from the surrounded components so as to allow access for remote or manual inspection, maintenance, and repair.

Inventors:
 [1]
  1. Latrobe, PA
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
OSTI Identifier:
863200
Patent Number(s):
4118278
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
E(45-1)-2171
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nuclear; reactor; insulation; preheat; preselected; components; fluid; cooled; gas; tight; barrier; compartment; thermal; surrounds; selected; devices; heat; internal; atmosphere; external; surface; enclosure; circulating; heating; provide; preheating; maintenance; temperature; sufficient; ensure; coolant; solidify; shutdown; cooling; limits; transferred; plant; structures; supporting; concrete; steel; spaced; surrounded; allow; access; remote; manual; inspection; repair; circulating fluid; heating device; external surface; thermal insulation; reactor coolant; nuclear reactor; heat transfer; temperature sufficient; cooled nuclear; coolant fluid; allow access; selected components; gas tight; fluid cooled; selected component; tight barrier; /376/976/

Citation Formats

Wampole, Nevin C. Nuclear reactor insulation and preheat system. United States: N. p., 1978. Web.
Wampole, Nevin C. Nuclear reactor insulation and preheat system. United States.
Wampole, Nevin C. Sun . "Nuclear reactor insulation and preheat system". United States. https://www.osti.gov/servlets/purl/863200.
@article{osti_863200,
title = {Nuclear reactor insulation and preheat system},
author = {Wampole, Nevin C},
abstractNote = {An insulation and preheat system for preselected components of a fluid cooled nuclear reactor. A gas tight barrier or compartment of thermal insulation surrounds the selected components and includes devices to heat the internal atmosphere of the compartment. An external surface of the compartment or enclosure is cooled, such as by a circulating fluid. The heating devices provide for preheating of the components, as well as maintenance of a temperature sufficient to ensure that the reactor coolant fluid will not solidify during shutdown. The external cooling limits the heat transferred to other plant structures, such as supporting concrete and steel. The barrier is spaced far enough from the surrounded components so as to allow access for remote or manual inspection, maintenance, and repair.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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