パイロット弁付きガス整圧器の特性

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書誌事項

タイトル別名
  • Characteristics of Pilot Operated Gas Pressure Regulator
公開日
1997
DOI
  • 10.9746/sicetr1965.33.195
公開者
公益社団法人 計測自動制御学会

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説明

This paper describes modeling and characteristic analysis of a pilot operated gas pressure regulator which is generally applied in high pressure main pipelines of a city gas distribution system. The gas regulator is designed to be a perfectly non-bleed and self driven device which uses the upper stream gas pressure as the driving power source and is composed of a primary pressure regulator, a pilot valve and a main valve. A mathematical model of the gas pressure regulator is presented in the paper. Linearizing characteristics of the pilot valve using the input-output gain and output flow rate gain, a block diagram of a gas regulator is presented in the paper for analyzing system behavior. Effects of the supply pressure regulator which drives the pilot valve in the pressure of the secondary pressure plus a fixed bias pressure are analyzed. It is made clear that with the supply pressure regulator, characteristic variation to operating condition of the gas pressure regulator is sharply restrained. Relations among system characteristics, regulator element parameters and the operating condition are analyzed in the paper. The model is verified by experiments. Simulation results based on the mathematical model show good agreement with experimental results.

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