| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for an end pressure in water distribution, capable of quantitatively compute a target discharge pressure from the deviation of end pressures at two or more points at the least from the target value of each end pressure and a degree of importance, capable of computing the target discharge pressure by a simple function of four rules of arithmetic, and capable of easily setting a control target for controlling the end pressure and the degree of importance. SOLUTION: This control equipment for an end pressure in water distribution is structured by providing a discharge pressure adjuster 6 to compute a target discharge pressure 15 by which an end pressure difference becomes minimum, from an end pressure at each of plural measurement points (a)-(d), a target end pressure PSVa-d, a degree of importance Ka-d and the discharge pressure 14 of a water distribution pump, by four rules of arithmetic and by using a discharge pressure set value computer 8, and to compute the number of revolutions of a distribution pump from the deviation of the discharge pressure 14 from the target discharge pressure 15, and revolution speed adjusters 10a, 10b to control the revolution speed of the pump so as to make it equal to the computed revolution speed.
|
