JPS6430678A - Method for lining inner wall surface of pipe and injector for lining material - Google Patents

Method for lining inner wall surface of pipe and injector for lining material

Info

Publication number
JPS6430678A
JPS6430678A JP18798287A JP18798287A JPS6430678A JP S6430678 A JPS6430678 A JP S6430678A JP 18798287 A JP18798287 A JP 18798287A JP 18798287 A JP18798287 A JP 18798287A JP S6430678 A JPS6430678 A JP S6430678A
Authority
JP
Japan
Prior art keywords
pipe
lining
axial velocity
gas current
lining material
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
JP18798287A
Other languages
Japanese (ja)
Inventor
Sadahiro Ogawa
Kiyonori Niino
Mareo Shinjo
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.)
Nippon Light Metal Co Ltd
Original Assignee
Nippon Light Metal Co 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 Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Priority to JP18798287A priority Critical patent/JPS6430678A/en
Publication of JPS6430678A publication Critical patent/JPS6430678A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings

Abstract

PURPOSE:To drastically decrease the pressure drop of a fluid and to easily form a uniform and thick lining film by passing a gas current through the inside of a gradually contracted pipe to form a spiral flow consisting essentially of a free vortex in the title gas current-type lining method. CONSTITUTION:When a compressed gas is passed from the expanded part of the gradually contracted pipe 3 to the contracted part, a velocity vector in the radial direction is imparted to the fluid in the gradually contracted pipe 3, and the spiral flows consisting essentially of a free vortex is discharged from the opening at the tip. When the flow S is supplied into a pipe 1 to be treated as the lining material carrying gas current, a cone-shaped distribution of the axial velocity in the radial direction of the pipeline is obtained, and the axial velocity in the vicinity of the pipe wall is made remarkably lower than the axial velocity at the center part. As a result, the particles of the lining material in the carrying gas current are allowed to relatively easily collide with the wall surface and deposited, hence a uniform and thick film is formed, and the pressure drop is reduced because the axial velocity in the vicinity of the pipe wall is low.
JP18798287A 1987-07-28 1987-07-28 Method for lining inner wall surface of pipe and injector for lining material Pending JPS6430678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18798287A JPS6430678A (en) 1987-07-28 1987-07-28 Method for lining inner wall surface of pipe and injector for lining material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18798287A JPS6430678A (en) 1987-07-28 1987-07-28 Method for lining inner wall surface of pipe and injector for lining material

Publications (1)

Publication Number Publication Date
JPS6430678A true JPS6430678A (en) 1989-02-01

Family

ID=16215545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18798287A Pending JPS6430678A (en) 1987-07-28 1987-07-28 Method for lining inner wall surface of pipe and injector for lining material

Country Status (1)

Country Link
JP (1) JPS6430678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011121001A (en) * 2009-12-10 2011-06-23 Izumi Technos Kk Method for coating internal surface of existing piping and coating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011121001A (en) * 2009-12-10 2011-06-23 Izumi Technos Kk Method for coating internal surface of existing piping and coating apparatus

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