| 摘要 |
PURPOSE:To eliminate variation in the calorific value of LPG air, by providing a relay valve in a main regulator control tube through which a mixer control and a main regulator communicate with each other. CONSTITUTION:Air for instrumentation is introduced as a supply pressure to a mixer control valve 8, and its output pressure is applied to an actuator for a relay valve 10. Further, air for instrumentation is made to branch off and led through a valve 10 to an actuator for an electromagnetic valve 7 and a main regulator 2. When the pressure of a surge tank 4 is low and output is increased, the input pressure against the valve 8 is low and output pressure is increased to a given pressure or above, the valve 10 is opened and air pressure for instrumentation is applied to the actuator for the regulator 2 to open the regulator 2. |
