JPS54123720A - Construction of nozzle section - Google Patents

Construction of nozzle section

Info

Publication number
JPS54123720A
JPS54123720A JP2992878A JP2992878A JPS54123720A JP S54123720 A JPS54123720 A JP S54123720A JP 2992878 A JP2992878 A JP 2992878A JP 2992878 A JP2992878 A JP 2992878A JP S54123720 A JPS54123720 A JP S54123720A
Authority
JP
Japan
Prior art keywords
nozzle
cooling water
thermal sleeve
bayonet
spiral member
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
JP2992878A
Other languages
Japanese (ja)
Inventor
Hideyo Saito
Yukio Nakagawa
Michie Kuroba
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 JP2992878A priority Critical patent/JPS54123720A/en
Publication of JPS54123720A publication Critical patent/JPS54123720A/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)

Abstract

PURPOSE: To maintain the uniform distribution of temperature on the inner surface of nozzle to prevent the corner and inner surface of nozzle from thermal fatigue cracking by providing simply a spiral member between the outer surface of easily interchangeable, bayonet type thermal sleeve and the inner surface of nozzle.
CONSTITUTION: A spiral expansion member 9 is provided between the inner surface of nozzle 2 and the outer surface of bayonet type thermal sleeve 32. Cooling water 5 which is flowed into a bayonet portion of the thermal sleeve 32 enlarged by the contraction due to the injection of the cooling water 5 is guided by the spiral member 9, heated sequentially and sent into a container 1. At that time, even if a small amount of cooling water(leakage water) is flowed from the bayonet portion, the section of fluid in the spiral member 9 is relatively small so that the flow speed becomes higher and a layer of cooling water formed on the outer surface of the thermal sleeve 32 is involed in the whole flow to provide the uniform distribution of temperature on the inner surface of nozzle 4 and prevent that portion from thermal fatigue cracking.
COPYRIGHT: (C)1979,JPO&Japio
JP2992878A 1978-03-17 1978-03-17 Construction of nozzle section Pending JPS54123720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2992878A JPS54123720A (en) 1978-03-17 1978-03-17 Construction of nozzle section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2992878A JPS54123720A (en) 1978-03-17 1978-03-17 Construction of nozzle section

Publications (1)

Publication Number Publication Date
JPS54123720A true JPS54123720A (en) 1979-09-26

Family

ID=12289644

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2992878A Pending JPS54123720A (en) 1978-03-17 1978-03-17 Construction of nozzle section

Country Status (1)

Country Link
JP (1) JPS54123720A (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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