| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of feeding combustion gas with an odorant and combustion gas without an odorant to consumers at the same time by using a pipeline. Ž<P>SOLUTION: There is provided a method of feeding the combustion gas with the odorant to a common gas burning device installed by a consumer, and the combustion gas without the odorant to a fuel cell facility installed by a consumer by using the pipeline. The pipeline is equipped with double piping 8 composed of outer side piping 8a and inner side piping 8b inserted into the outer side piping 8a. In the double piping 8, city gas being the combustion gas with the odorant is sent to a space part 8c formed by the outer side piping 8a and the inner side piping 8b, and gaseous hydrogen being the combustion gas without the odorant is sent through the inner side piping 8. A feed pressure P1 of the combustion gas without the odorant sent through the inner side piping 8b is provided higher than a feed pressure P2 of the combustion gas with the odorant sent through the space part 8c. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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