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Feedwater processing method in a boiling water reactor

Patent:

Abstract

The purpose of the invention is to decrease a quantity of corrosion products moving from the feedwater system to the core. Water formed into vapor after heated in a reactor is fed to the turbine through a main steam line to drive a generator to return it to liquid-state water in a condenser. The water is then again cycled into the reactor via the condensate pump, desalting unit, low pressure feedwater heater, medium pressure feedwater heater, and high pressure feedwater heater. The reactor water is recycled by a recycling pump. At this time, the reactor water recycled by the recycling pump is partially poured into a middle point between the desalting unit and the low pressure feedwater heater through a reducing valve or the like. With the structure described above, the quantity of the corrosion products from the feedwater system may be decreased by the function of a large quantity of active oxygen contained in the reactor water.
Publication Date:
Sep 06, 1976
Product Type:
Patent
Report Number:
JP 1978-32295; A
Reference Number:
AIX-10-427021; EDB-79-093344
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; FEEDWATER; WATER CHEMISTRY; BYPASSES; CORROSION PRODUCTS; CORROSION PROTECTION; HYDROGEN PEROXIDE; OXYGEN; PIPELINES; REACTOR CORES; REACTOR SAFETY; VAPOR CONDENSERS; CONDENSERS; CRYOGENIC FLUIDS; ELEMENTS; FLUIDS; HYDROGEN COMPOUNDS; NONMETALS; OXYGEN COMPOUNDS; PEROXIDES; REACTOR COMPONENTS; REACTORS; SAFETY; WATER; WATER COOLED REACTORS; WATER MODERATED REACTORS; 210100* - Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled
OSTI ID:
6019299
Country of Origin:
Japan
Language:
Japanese
Submitting Site:
INIS
Size:
Pages: 5
Announcement Date:

Patent:

Citation Formats

Izumitani, M, and Tanno, K. Feedwater processing method in a boiling water reactor. Japan: N. p., 1976. Web.
Izumitani, M, & Tanno, K. Feedwater processing method in a boiling water reactor. Japan.
Izumitani, M, and Tanno, K. 1976. "Feedwater processing method in a boiling water reactor." Japan.
@misc{etde_6019299,
title = {Feedwater processing method in a boiling water reactor}
author = {Izumitani, M, and Tanno, K}
abstractNote = {The purpose of the invention is to decrease a quantity of corrosion products moving from the feedwater system to the core. Water formed into vapor after heated in a reactor is fed to the turbine through a main steam line to drive a generator to return it to liquid-state water in a condenser. The water is then again cycled into the reactor via the condensate pump, desalting unit, low pressure feedwater heater, medium pressure feedwater heater, and high pressure feedwater heater. The reactor water is recycled by a recycling pump. At this time, the reactor water recycled by the recycling pump is partially poured into a middle point between the desalting unit and the low pressure feedwater heater through a reducing valve or the like. With the structure described above, the quantity of the corrosion products from the feedwater system may be decreased by the function of a large quantity of active oxygen contained in the reactor water.}
place = {Japan}
year = {1976}
month = {Sep}
}