JPS57169069A - Bwr plant - Google Patents

Bwr plant

Info

Publication number
JPS57169069A
JPS57169069A JP56052950A JP5295081A JPS57169069A JP S57169069 A JPS57169069 A JP S57169069A JP 56052950 A JP56052950 A JP 56052950A JP 5295081 A JP5295081 A JP 5295081A JP S57169069 A JPS57169069 A JP S57169069A
Authority
JP
Japan
Prior art keywords
sheath
amt
piping
control rod
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56052950A
Other languages
Japanese (ja)
Inventor
Naoshi Usui
Katsumi Osumi
Michiyoshi Yamamoto
Shinji Mitani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP56052950A priority Critical patent/JPS57169069A/en
Publication of JPS57169069A publication Critical patent/JPS57169069A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To decrease the production amt. of Co-60 from the sheath of a control rod used for a BWR plant considerably and to suppress plant dosage rate considerably by limiting the content of Co in the stainless steel of the said sheath and blade materials.
CONSTITUTION: The cooling water flowed into a boilding water reactor pressure vessel 2 past a water feed piping 1 is heated by a fuel rod 4 in the vessel and forms steam which is fed to a piping 3. From the pipe 1, Co is carried into the vessel 2 although it is of a trace amt. Thic Co sticks on the rod 4 and is activated to Co-60 which again elutes in the reactor water. Co is also directly irradiated from an apparatus 5 in the reactor, for example, a control rod, by which Co-60 is eluted. Such Co-60 sticks on a recirculating piping 6, etc., and is the major cause for the increase in dosage rate. Thereupon, a material of 18.0W 20.0% Cr, 8.0W10.5% Ni, ≤0.1% Co and the balance substantially Fe is used for the sheath and blade of the control rod. Thereby, the production amt. of the Co- 60 is reduced.
COPYRIGHT: (C)1982,JPO&Japio
JP56052950A 1981-04-10 1981-04-10 Bwr plant Pending JPS57169069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56052950A JPS57169069A (en) 1981-04-10 1981-04-10 Bwr plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56052950A JPS57169069A (en) 1981-04-10 1981-04-10 Bwr plant

Publications (1)

Publication Number Publication Date
JPS57169069A true JPS57169069A (en) 1982-10-18

Family

ID=12929153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56052950A Pending JPS57169069A (en) 1981-04-10 1981-04-10 Bwr plant

Country Status (1)

Country Link
JP (1) JPS57169069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213306U (en) * 1985-07-09 1987-01-27

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558404A (en) * 1978-06-30 1980-01-22 Nippon Steel Corp Manufacture of austenitic stainless steel used in atmosphere of high-temperature and high-pressure water
JPS5511102A (en) * 1978-06-30 1980-01-25 Nippon Steel Corp Austenite stainless steel for high temperature and high pressure water environment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558404A (en) * 1978-06-30 1980-01-22 Nippon Steel Corp Manufacture of austenitic stainless steel used in atmosphere of high-temperature and high-pressure water
JPS5511102A (en) * 1978-06-30 1980-01-25 Nippon Steel Corp Austenite stainless steel for high temperature and high pressure water environment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6213306U (en) * 1985-07-09 1987-01-27

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