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Title:
NOZZLE NECK AND NOZZLE NECK INSTALLING METHOD
Document Type and Number:
Japanese Patent JP2015001264
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a nozzle neck capable of installing shells within a sheath pipe by small force and preventing the shells from being contacted to each other within the sheath pipe and provide a shell installing method.SOLUTION: This invention relates to a nozzle neck 1 in which a plurality of shells 101 moved in a direction of axial line P of a sheath pipe 100 inside the sheath pipe 100 under utilization of buoyancy of water W stored in the sheath pipe 100 and arranged to be spaced apart inside the sheath pipe 100 in a horizontal direction crossing at a right angle with the axial line P are supported from below within the sheath pipe after the water W is discharged out of the sheath pipe 100. There is provided a main body 2 of the nozzle neck that is arranged to cover the inner circumferential surface of the sheath pipe 100 at a part of the circumferential direction of the axial line P below the inside part of the sheath pipe 100, and the main body 2 of the nozzle neck is formed with a motion restricting surface 3 while being contacted with the plurality of shells 101 to restrict motion of the shells 101 in the horizontal direction.

Inventors:
MOGI TAKAYUKI
SETOYAMA KAZUYUKI
Application Number:
JP2013126023A
Publication Date:
January 05, 2015
Filing Date:
June 14, 2013
Export Citation:
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Assignee:
NIPPON STEEL & SUMIKIN PIPELINE & ENGINEERING CO LTD
International Classes:
F16L1/00
Domestic Patent References:
JPH10262311A1998-09-29
JPH0492179A1992-03-25
JPS6483739A1989-03-29
JP2001074167A2001-03-23
JPS5340619U1978-04-08
JPS63280985A1988-11-17
JPH0821568A1996-01-23
Attorney, Agent or Firm:
Masatake Shiga
Norio Takahashi
Sumio Tanai
Yuji Masui