OZONIZER, WATER PURIFIER AND METHOD OF CLEANING AN OZONIZER

摘要

An ozonizer and water purifier equipped with the ozonizer comprising an ozonizing discharge element; an electric circuit for applying a voltage to the ozonizing discharge element so as to produce an ozone-generating discharge; a housing having an opening formed therein for receiving the ozonizing discharge element; a cover which seals the ozonizing discharge element in the housing; and means for turning off the voltage applied to the ozonizing discharge element when the cover is removed. In another embodiment, at least a part of the cover or housing is transparent so as to enable detection of the discharge state of the ozonizing discharge element. Also disclosed is an ozonizer and a water purifier comprising the ozonizer which includes a discharge element for generating ozone by discharge, wherein ammonium nitrate and otter substances adhere to the discharge element upon discharge; and a heat generating element for heating the discharge element to a predetermined temperature which induces scattering of at least ammonium nitrate molecules among those substances adhering to the discharge element. Also disclosed is a method of cleaning an ozonizer having a discharge element for generating ozone by discharge wherein ammonium nitrate and other substances adhere to the discharge element upon discharge, whichcomprises heating the discharge element to a predetermined temperature so as to evaporate at least ammonium nitrate among those substances adhering to the discharge element.