JPS5561951A - Nozzle structure - Google Patents

Nozzle structure

Info

Publication number
JPS5561951A
JPS5561951A JP13578678A JP13578678A JPS5561951A JP S5561951 A JPS5561951 A JP S5561951A JP 13578678 A JP13578678 A JP 13578678A JP 13578678 A JP13578678 A JP 13578678A JP S5561951 A JPS5561951 A JP S5561951A
Authority
JP
Japan
Prior art keywords
piston ring
groove
thermal sleeve
nozzle
pin
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
JP13578678A
Other languages
Japanese (ja)
Inventor
Hiroaki Kawashima
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 Ltd
Original Assignee
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 Ltd filed Critical Hitachi Ltd
Priority to JP13578678A priority Critical patent/JPS5561951A/en
Publication of JPS5561951A publication Critical patent/JPS5561951A/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

  • Nozzles (AREA)
  • Joints With Sleeves (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE: To provide a water feed nozzle for nuclear pressure container capable of preventing water leak at mounted face, by a mechanism wherein an elastic seal member is used at the periphery of the mounted face of a thermal sleeve which is mounted to the nozzle by cold fitting.
CONSTITUTION: Keeping thermal sleeve 3 and sparger 4 to be located outside nozzle 1, piston ring 6 is set to the piston ring groove 11 of the thermal sleeve 3 to permit the coupling protrusion 9 and coupling groove of both ends to be engaged. Pin is inserted into the hold hole 10 to restrain the assembly. To have the thermal sleeve undergo cold-fitting, it is put in liquid nitrogen to cool together with the piston ring 6, and afterward the pin is removed from the hole 10. The piston ring's 6 coupling protrusion may possibly removed from the groove, but the groove of carbon steel contracts more than does the protrusion 9 of inconell alloy, allowing the piston ring 6 to be remained in the restrained condition.
COPYRIGHT: (C)1980,JPO&Japio
JP13578678A 1978-11-06 1978-11-06 Nozzle structure Pending JPS5561951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13578678A JPS5561951A (en) 1978-11-06 1978-11-06 Nozzle structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13578678A JPS5561951A (en) 1978-11-06 1978-11-06 Nozzle structure

Publications (1)

Publication Number Publication Date
JPS5561951A true JPS5561951A (en) 1980-05-10

Family

ID=15159802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13578678A Pending JPS5561951A (en) 1978-11-06 1978-11-06 Nozzle structure

Country Status (1)

Country Link
JP (1) JPS5561951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268560A (en) * 1985-09-20 1987-03-28 Babcock Hitachi Kk Oval orifice type nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268560A (en) * 1985-09-20 1987-03-28 Babcock Hitachi Kk Oval orifice type nozzle

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