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Title: Start-up control system and vessel for LMFBR

Abstract

A reflux condensing start-up system includes a steam generator, a start-up vessel connected parallel to the steam generator, a main steam line connecting steam outlets of the steam generator and start-up vessel to a steam turbine, a condenser connected to an outlet of the turbine and a feedwater return line connected between the condenser and inlets of the steam generator and start-up vessel. The start-up vessel has one or more heaters at the bottom thereof for heating feedwater which is supplied over a start-up line to the start-up vessel. Steam is thus generated to pressurize the steam generator before the steam generator is supplied with a heat transfer medium, for example liquid sodium, in the case of a liquid metal fast breeder reactor. The start-up vessel includes upper and lower bulbs with a smaller diameter mid-section to act as water and steam reservoirs. The start-up vessel can thus be used not only in a start-up operation but as a mixing tank, a water storage tank and a level control at low loads for controlling feedwater flow.

Inventors:
 [1];  [2];  [3]
  1. Akron, OH
  2. Clinton, OH
  3. Galesburg, IL
Issue Date:
Research Org.:
BABCOCK & WILCOX CO
OSTI Identifier:
866209
Patent Number(s):
4656335
Assignee:
Babcock & Wilcox Company (New Orleans, LA)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
F - MECHANICAL ENGINEERING F22 - STEAM GENERATION F22B - METHODS OF STEAM GENERATION
DOE Contract Number:  
AC02-77ET37209
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
start-up; control; vessel; lmfbr; reflux; condensing; steam; generator; connected; parallel; main; line; connecting; outlets; turbine; condenser; outlet; feedwater; return; inlets; heaters; bottom; heating; supplied; generated; pressurize; heat; transfer; medium; example; liquid; sodium; metal; fast; breeder; reactor; upper; bulbs; diameter; mid-section; water; reservoirs; operation; mixing; tank; storage; level; loads; controlling; flow; return line; steam turbine; level control; line connected; water flow; start-up vessel; water storage; storage tank; breeder reactor; fast breeder; steam generator; liquid metal; heat transfer; liquid sodium; metal fast; transfer medium; steam line; steam outlet; condenser connected; reflux condensing; steam outlets; feedwater flow; start-up control; vessel connected; connected parallel; connecting steam; main steam; line connecting; condensing start-up; /392/376/976/

Citation Formats

Durrant, Oliver W, Kakarala, Chandrasekhara R, and Mandel, Sheldon W. Start-up control system and vessel for LMFBR. United States: N. p., 1987. Web.
Durrant, Oliver W, Kakarala, Chandrasekhara R, & Mandel, Sheldon W. Start-up control system and vessel for LMFBR. United States.
Durrant, Oliver W, Kakarala, Chandrasekhara R, and Mandel, Sheldon W. Thu . "Start-up control system and vessel for LMFBR". United States. https://www.osti.gov/servlets/purl/866209.
@article{osti_866209,
title = {Start-up control system and vessel for LMFBR},
author = {Durrant, Oliver W and Kakarala, Chandrasekhara R and Mandel, Sheldon W},
abstractNote = {A reflux condensing start-up system includes a steam generator, a start-up vessel connected parallel to the steam generator, a main steam line connecting steam outlets of the steam generator and start-up vessel to a steam turbine, a condenser connected to an outlet of the turbine and a feedwater return line connected between the condenser and inlets of the steam generator and start-up vessel. The start-up vessel has one or more heaters at the bottom thereof for heating feedwater which is supplied over a start-up line to the start-up vessel. Steam is thus generated to pressurize the steam generator before the steam generator is supplied with a heat transfer medium, for example liquid sodium, in the case of a liquid metal fast breeder reactor. The start-up vessel includes upper and lower bulbs with a smaller diameter mid-section to act as water and steam reservoirs. The start-up vessel can thus be used not only in a start-up operation but as a mixing tank, a water storage tank and a level control at low loads for controlling feedwater flow.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

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