| 摘要 |
PROBLEM TO BE SOLVED: To prevent a collection pipe from being in a liquid-sealed state in an LP gas supply system. SOLUTION: When pressure on the collection pipe 11 side exceeds a first set value, a check valve 17 operates to prevent reverse flow to the side of LP gas containers 3, 5, 7, 9. When the pressure on the collection pipe 11 side exceeds a second set value larger than the first set value, a relief valve 19 operates to allow a predetermined amount of the reverse flow. COPYRIGHT: (C)2011,JPO&INPIT |
