Title:
COVERING MATERIAL
Document Type and Number:
Japanese Patent JP2016180419
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method which detects leakage of a fluid and specifies a leaked position when an embedded tube embedded in the ground deteriorates and the fluid passing through the embedded tube leaks.SOLUTION: A covering material covers an embedded tube 1, which is embedded in the ground and allows a fluid to flow therein, in an air-tight manner to prevent corrosion. The covering material includes: a coating part 2 which coats an outer periphery of the embedded tube 1 in the air-tight manner; and a bag part 3 enclosing a detection gas 31. The bag part 3 is provided so as to be compressed by a pressure from a space 5, which is formed between an outer peripheral surface of the embedded tube 1 and the coating part 2, and has a discharge part 4 which discharges the detection gas 31 in the bag part 3 to an exterior part when a pressure in the bag part 3 becomes a predetermined pressure or higher.SELECTED DRAWING: Figure 1
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Inventors:
NAGAI TOMOYUKI
Application Number:
JP2015059577A
Publication Date:
October 13, 2016
Filing Date:
March 23, 2015
Export Citation:
Assignee:
OSAKA GAS CO LTD
International Classes:
F16L58/10; F17D5/02
Attorney, Agent or Firm:
Patent business corporation r&c
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