| 摘要 |
PROBLEM TO BE SOLVED: To accurately adjust the component ratio of feedstock gases supplied to a production tank to a desired value. SOLUTION: In the apparatus for manufacturing a gas hydrate having a production tank 1 in which a methane gas 3 and an ethane gas 4 are supplied and allowed to react with water 8 to form a gas hydrate, detectors 34 and 35 for detecting each gas flow rate, and controllers 37 and 38 for controlling these detected flow rates qa and qb to set flow rates qa* and qb*, this apparatus has a mixing ratio controller 40 for integrating the detected flow rates qa and qb for a correction period T to find a deviationΔQb from a desired ratio of integrated values Qa and Qb and correcting the set flow rate qb* of the controller 38 so as to reduce this deviationΔQb, and by this controller, the component ratio of the methane gas 3 and the ethane gas 4 supplied to the production tank 1 can be accurately adjusted to a desired value even when the flow rates of the methane gas 3 and the ethane gas 4 are varied for some cause. COPYRIGHT: (C)2005,JPO&NCIPI |
