Start-up control system and vessel for LMFBR

Patent · Wed Dec 31 23:00:00 EST 1986

OSTI ID:866282

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 comprises 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 4674285
• OSTI ID: 866282
• Country of Publication: United States
• Language: English

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