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Patent Searching and Data


Title:
DEVICE AND METHOD OF CONTROL OF FUEL SUPPLY
Document Type and Number:
Japanese Patent JP3768335
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To permit the sending out of the correct amount of natural gas with respect to a real natural gas consumption by a method wherein a difference between the flow rate of liquid fuel and the flow rate of gas fuel, consumed in a consuming means, is operated and, thereafter, a second control signal, controlling a flow rate control valve, is produced based on a first control signal and the flow rate of the liquid fuel.
SOLUTION: Upon the operation of a thermal power plant B, natural gas is outputted by evaporating LNG through evaporators 5a-5e. In this case, a pressure signal Y, measured by a pressure gauge 6, is outputted into a fuel supply control device 7. On the other hand, gas flow rate signals Z1-Z5, detected by the gas flow meters G1-G5 of a combined power generating units U1-U5, are outputted into the fuel supply control device 7. Then, a control signal, obtained in the fuel supply control device 7 from a difference signal between the total value of flow rate of natural gas and the total value of flow rate of LNG, measured by respective flow meters 4a-4e, and a control signal from the control signal producing device, is divided equally into five values by a distributor to change the opening degree of respective flow rate control valves 3a-3e whereby the passing flow rates of LNG can be controlled uniformly.


Inventors:
丁野 泰郎
鳥家 親昌
門脇 令幸
林 英樹
石森 敬三
Application Number:
JP17987497A
Publication Date:
April 19, 2006
Filing Date:
July 04, 1997
Export Citation:
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Assignee:
中国電力株式会社
石川島播磨重工業株式会社
International Classes:
F17C13/04; F23N1/00; F17C9/02; G05D7/06; (IPC1-7): F23N1/00; F17C13/04; G05D7/06
Domestic Patent References:
JP231100A
JP574758B2
JP8194502A
Attorney, Agent or Firm:
志賀 正武
渡邊 隆
成瀬 重雄