| 摘要 |
PURPOSE:To perform stable operation so as to rapidly correspond to the change in load, by mounting a control meter for controlling the outlet temp. of a brine heater and a recirculation flow amount and a temp. detector for detecting the temp. of brine in each flash chamber. CONSTITUTION:When a plant is stably operated under 60% load, there is no change in differential pressure between a first flash chamber and a second flash chamber 2 and the output of a differential operator 38 is zero. When the load setting of a water making amount setting device 36 is brought to 80% from this state, the set value of a temp. controller 21 is increased by a control meter 37 and the outlet temp. of a brine heater 3 rises and load comes to a rising tendency. The output of the differential operator 38 also gradually increases and exceeds the set value of a setting device 39 at the certain point of time. At this time, the output of an operator 40 is turned OFF and the temp. rising signal from a water making amount control meter 37 is interrupted. |
