Being the chemicals injection control unit of the chemicals injection control unit of the tube network and tube network which outputs the chemicals injection rate to chemicals

摘要

PROBLEM TO BE SOLVED: To compute an optimal chemical injection quantity for a plurality of chemical injectors by leveling water quality in a water distributing pipe net.;SOLUTION: This chemical injection control device 20 is composed of a pipe net data input means 30, a pipe net database 35, a water quality computing means 40, a water quality target value input means 51, a chemical injector operation state input means 52, a leveling index computing means 70 and an optimal chemical injection quantity computing means 75. The leveling index computing means 70 arithmetically operates a leveling index of the water quality from water quality data of a plurality of points arithmetically operated by the water quality computing means 40. The optimal chemical injection quantity computing means 75 sets a chemical injection quantity of most leveling the leveling index arithmetically operated by the leveling index computing means 70 for satisfying a water quality target value inputted by the water quality target value input means 51, that is, the chemical injection quantity of the plurality of chemical injectors 6 operating at present when viewed from an operation state of the chemical injectors 6 inputted by the chemical injector operation state input means 52, as the optimal chemical injection quantity.;COPYRIGHT: (C)2007,JPO&INPIT