JPS6479497A - Method of removing gas from conduit - Google Patents
Method of removing gas from conduitInfo
- 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
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.
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)
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 replacing method |
Citations (3)
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 |
-
1987
- 1987-09-21 JP JP23493787A patent/JPS6479497A/en active Pending
Patent Citations (3)
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)
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 replacing method |
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