Title:
METHOD FOR RECLAMATION AND REPAIRING OF EXISTING DUCT LINE AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP3681233
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for reclamation and repairing of an existing pipe by which resin-lining ranging over whole length of the pipe and extending to an aiming position can be certainly executed.
SOLUTION: As a preparatory process of a first process (a resin transportation process), a resin transportation pig 5, a liquid absorbent 6 and a liquid insulating pig 7 are introduced in a pipe from an opening 31 of a supplying pipe and then required amount of a liquid stream is poured in the pipe to transport the resin transportation pig 5, the liquid absorbent 6 and the liquid insulating pig 7 to a prescribed position in the pipe under pressure. Thereafter, an acoustic wave is emitted from the opening 31 of the supplying pipe to the liquid stream in the pipe and the distance from the opening 31 of the supplying pipe to the liquid insulating pig 7 is measured by receiving a reflected wave from the liquid insulating pig 7. Measured result is compared with an arrival destined distance of the liquid insulating pig 7 in the pipe. When an actual position of the liquid insulating pig 7 is judged to be not reached to the destined position, the amount of the liquid is adjusted so that the liquid insulating pig 7 can reach to the arrival destined position, then the liquid V remaining in the pipe is discharged to the outside of the pipe, total amount of a resin plug and the liquid stream is made to be equal to amount of the liquid V and the process is executed at the first processing time.
Inventors:
Kenji Suyama
Kobayashi Kenchi
Kobayashi Kenchi
Application Number:
JP27933396A
Publication Date:
August 10, 2005
Filing Date:
October 22, 1996
Export Citation:
Assignee:
Tokyo Gas Co., Ltd.
International Classes:
F16L1/00; B05C7/06; B05C7/08; B05D7/22; (IPC1-7): B05D7/22; B05C7/08
Domestic Patent References:
| JP6126233A | ||||
| JP8141469A | ||||
| JP7055450A | ||||
| JP7155685A | ||||
| JP5285452A | ||||
| JP5228436A | ||||
| JP5228435A | ||||
| JP10024266A | ||||
| JP6126247A | ||||
| JP8141474A |
Attorney, Agent or Firm:
Nobujun Kobashi
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