Leakage detection tube of underground gas pipe

摘要

(57) [summary] [purpose] the gas leakage point from the gas transport pipe that is buried in the ground I identify accurately and quickly. [Configuration] During the 2 soil is buried gas transportation pipe 3. Gas leak is likely to occur from the joint 4 of the gas transport pipe 3. Dissipating tube 5 is embedded so as to extend upward from the joint 4. Sand is housed in dissipating tube 5, gas is easily passes through the grain pipe sand. Most of the gas generated from this for joint 4 is released to the surface as the surface of the earth leakage gas 8 through the dissipation pipe 5. By a gas detector 9 from the surface, it is possible to easily detect the gas leakage.