JPS6479497A - Method of removing gas from conduit - Google Patents

Method of removing gas from conduit

Info

Publication number
JPS6479497A
JPS6479497A JP23493787A JP23493787A JPS6479497A JP S6479497 A JPS6479497 A JP S6479497A JP 23493787 A JP23493787 A JP 23493787A JP 23493787 A JP23493787 A JP 23493787A JP S6479497 A JPS6479497 A JP S6479497A
Authority
JP
Japan
Prior art keywords
gas
edge
pipe
parachute body
remaining
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
JP23493787A
Other languages
Japanese (ja)
Inventor
Masahiro Hirai
Koji Matsuzaki
Kiyoshi Kanbara
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.)
KANPAI KK
Original Assignee
KANPAI KK
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 KANPAI KK filed Critical KANPAI KK
Priority to JP23493787A priority Critical patent/JPS6479497A/en
Publication of JPS6479497A publication Critical patent/JPS6479497A/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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipeline Systems (AREA)

Abstract

PURPOSE: To efficiently and completely exclude remained gas by moving a parachute body inserted from one edge of a pipe to the other edge in an open condition by a supplying pressure of inactive gas to exclude remaining gas within the pipe to the outside. CONSTITUTION: After exposing both edges of a gas pipe 1, a cap 6 for an entrance inserting a parachute body 15 and a wire 7 is covered at one edge 4, and a cap 19 for an exit is covered at the other edge 5. Then inactive gas 9 is poured into the gas pipe 1. Space behind the parachute body 15 is gradually filled with the poured inactive gas 9 to move the parachute body 15 to the other edge 5. In this case remaining gas 21 remaining within the gas pipe 1 is excluded from an excluding pipe 20 disposed at the other edge 5 to the outside.
JP23493787A 1987-09-21 1987-09-21 Method of removing gas from conduit Pending JPS6479497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23493787A JPS6479497A (en) 1987-09-21 1987-09-21 Method of removing gas from conduit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23493787A JPS6479497A (en) 1987-09-21 1987-09-21 Method of removing gas from conduit

Publications (1)

Publication Number Publication Date
JPS6479497A true JPS6479497A (en) 1989-03-24

Family

ID=16978608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23493787A Pending JPS6479497A (en) 1987-09-21 1987-09-21 Method of removing gas from conduit

Country Status (1)

Country Link
JP (1) JPS6479497A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007024271A (en) * 2005-07-20 2007-02-01 Chugoku Electric Power Co Inc:The Gas displacement method and gas displacement unit in piping
JP2009162269A (en) * 2007-12-28 2009-07-23 Osaka Gas Co Ltd In-pipe gas replacement method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605837A (en) * 1983-06-23 1985-01-12 Tanaka Kikinzoku Kogyo Kk Clad contact
JPS626397U (en) * 1985-06-27 1987-01-14
JPS6224879U (en) * 1985-07-29 1987-02-16

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605837A (en) * 1983-06-23 1985-01-12 Tanaka Kikinzoku Kogyo Kk Clad contact
JPS626397U (en) * 1985-06-27 1987-01-14
JPS6224879U (en) * 1985-07-29 1987-02-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007024271A (en) * 2005-07-20 2007-02-01 Chugoku Electric Power Co Inc:The Gas displacement method and gas displacement unit in piping
JP2009162269A (en) * 2007-12-28 2009-07-23 Osaka Gas Co Ltd In-pipe gas replacement method

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