Start-up control system and vessel for LMFBR

Patent · Thu Jan 01 00:00:00 EST 1987

OSTI ID:866209

Durrant, Oliver W ^[1]; Kakarala, Chandrasekhara R ^[2]; Mandel, Sheldon W ^[3]

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1. Akron, OH
2. Clinton, OH
3. Galesburg, IL

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.

• Research Organization: BABCOCK & WILCOX CO
• DOE Contract Number: AC02-77ET37209
• Assignee: Babcock & Wilcox Company (New Orleans, LA)
• Patent Number(s): US 4656335
• OSTI ID: 866209
• Country of Publication: United States
• Language: English

Related Subjects

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/