JPS641999A - Draining apparatus of water of atomic reactor - Google Patents

Draining apparatus of water of atomic reactor

Info

Publication number
JPS641999A
JPS641999A JP62156620A JP15662087A JPS641999A JP S641999 A JPS641999 A JP S641999A JP 62156620 A JP62156620 A JP 62156620A JP 15662087 A JP15662087 A JP 15662087A JP S641999 A JPS641999 A JP S641999A
Authority
JP
Japan
Prior art keywords
ball valve
tube
valve unit
water
instrumentation tube
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
JP62156620A
Other languages
Japanese (ja)
Other versions
JPH011999A (en
Inventor
Kazuo Sakamaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62156620A priority Critical patent/JPS641999A/en
Publication of JPH011999A publication Critical patent/JPH011999A/en
Publication of JPS641999A publication Critical patent/JPS641999A/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

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE: To make an operation efficient and to protect an operator from radiation exposure, by providing a first ball valve being connected to a straight tube and operable manually and a second ball valve being connected to the first ball valve by means of a one-touch joint and operable remotely.
CONSTITUTION: A first ball valve unit A is screwed to each incore flange 9 in which a neutron instrumentation tube 6 to be replaced is fitted. A second ball valve unit B is connected to the valve unit A by means of a one-touch joint 27. When the instrumentation tube 6 is pulled out, the core water which is sealed water-tightly theretofore by a seat element 37 located between the sealing surface of the instrumentation tube 6 and the seat member of the flange 9, flows into a straight tube 25 and reaches a second ball valve 28. When the valve 28 is operated to open by operating an operating device 36, the core water is discharged to a rad pit through a transparent tube 30. After a first ball valve 26 is operated to close, a new neutron instrumentation tube 6 is hung down from above a reactor and fitted therein. The valve unit B is removed from the valve unit A by means of the joint 27. By this constitution, the operation is made efficient and an operator is protected from radiation exposure.
COPYRIGHT: (C)1989,JPO&Japio
JP62156620A 1987-06-25 1987-06-25 Draining apparatus of water of atomic reactor Pending JPS641999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62156620A JPS641999A (en) 1987-06-25 1987-06-25 Draining apparatus of water of atomic reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62156620A JPS641999A (en) 1987-06-25 1987-06-25 Draining apparatus of water of atomic reactor

Publications (2)

Publication Number Publication Date
JPH011999A JPH011999A (en) 1989-01-06
JPS641999A true JPS641999A (en) 1989-01-06

Family

ID=15631696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62156620A Pending JPS641999A (en) 1987-06-25 1987-06-25 Draining apparatus of water of atomic reactor

Country Status (1)

Country Link
JP (1) JPS641999A (en)

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