Ozone generation system and method for operating ozone generation system

摘要

An ozone generation system comprises an electricity charge unit price storing part which stores an electricity charge unit and a gas charge unit price storing part which stores a gas charge unit price, based on the electricity charge unit price, the gas charge unit price and necessary generation amount of ozone which is required for an ozonized gas, regarding an ozone concentration and a gas flow rate which are ozone generation amount basic parameters, values at which a running cost is a minimum are determined, a gas flow rate controller is controlled so as for a gas flow rate to be the determined gas flow rate and power of a power supply for an ozone generator is controlled so as for an ozone concentration to be the determined ozone concentration.

主权项

1. An ozone generation system comprising:
an ozone generator having discharge tubes, a raw material gas supply device which supplies raw material gas containing oxygen, a power supply for an ozone generator which applies a high-frequency high voltage to the discharge tubes, a cooling device which flows cooling water to the periphery of the discharge tubes, a gas flow rate controller which controls the flow rate of an ozonized gas which is outputted from the ozone generator, an ozone concentration measuring device which measures an ozone concentration of the ozonized gas, a cooling water thermometer which measures a temperature of the cooling water and a controller which controls power of the power supply for an ozone generator and the gas flow rate controller, wherein the controller comprises an electricity charge unit price storing part which stores an electricity charge unit price, a gas charge unit price storing part which stores a gas charge unit price and an ozone generation amount basic parameter optimum value storing part which stores optimum values of one of ozone generation amount basic parameters, which are the ozone concentration and the gas flow rate,
wherein an optimum value is a determined value at which a running cost is a minimum value, using cooling water temperature and necessary ozone generation amount as input parameters,and wherein running cost is determined on the basis of an electricity charge calculated by the electricity charge unit price stored in the electricity charge unit price storing part and a gas charge calculated by the gas charge unit price stored in the gas charge unit price storing part; and wherein the controller is configured to: read, from the ozone generation amount basic parameter optimum value storing part, an ozone generation amount basic parameter optimum value which corresponds to a cooling water thermometer measured value of the cooling water and a necessary ozone generation amount, determine an ozone concentration and a gas flow rate at which the ozone generator is operated based on the ozone generation amount basic parameter optimum value which is read and the necessary ozone generation amount, and control the gas flow rate controller so as for a gas flow rate to be the determined value and the power of the power supply for an ozone generator so as for the ozone concentration measured value of the ozone concentration measuring device to be the determined value.