摘要 |
PURPOSE:To measure a flow rate accurately by holding the internal pressure of a tank higher than the pressure of a saturated liquid flowing into the tank by charging noncondensible gas, except the vapor of the liquid, into the tank. CONSTITUTION:The internal pressure of a tank 1 is held equal to the pressure of a saturated liquid in a flow passage 2 which has an opening in the tank 1 by charging noncondensible gap into the tank. The liquid flows out by water head pressure without being flushed to stay in the tank in a saturated state, thereby measuring the flow rate of the liquid accurately. |