Mitsubishi Denki Kabushiki Kaisha

Toshiba Mitsubishi-electric Industrial Systems Corporation

Yuji Ganryu

Masaki Kuzumoto

Shigenori Yagi

Koji Ohta

Yujiro Okihara

Youichiro Tabata

Noboru Wada

Akaru Usui

Hirozoh Kanegae

Hiromichi Komiya

An ozonizer has a flat plate-shaped low voltage electrodea flat plate-shaped high voltage electrodefacing a main surface of the low voltage electrodeThe ozonizer also has a flat plate-shaped dielectricand a spacer for forming a discharge gapof a thin thickness in a laminating direction provided between the low voltage electrodeand the electrodean electrode cooling sheetprovided facing a main surface of the electrodeat a side opposite the discharge gapfor cooling the electrodeThe ozonizer also has a thermal conducting/electric insulating sheetsandwiched between the electrodeand the electrode cooling sheetAn alternating voltage is applied between the low voltage electrodeand the electrodeand a discharge is produced in the discharge gapinjected with oxygen gas to produce ozone gas.

Ozonizer

An ozonizer has a flat plate-shaped low voltage electrode, flat plate-shaped first and second high voltage electrodes facing the low voltage electrode, a first dielectric, and a first spacer, located between the low voltage electrode and the first high voltage electrode, a second dielectric, and a second spacer between the electrode and the second high voltage electrode. The ozonizer also has a first electrode cooling sheet facing the first high voltage electrode at a side opposite a first discharge gap, a second electrode cooling sheet facing the second high voltage electrode, a first thermally conducting and electrically insulating sheet sandwiched between the first high voltage electrode and the first electrode cooling sheet, and a second thermally conducting and electrically insulating sheet sandwiched between the second high voltage electrode and the second electrode cooling sheet.

An ozonizer has a flat plate-shaped low voltage electrode and a flat plate-shaped high voltage electrode facing a main surface of the low voltage electrode. The ozomzer also has a flat plate-shaped dielectric and a spacer forming a discharge gap in a laminating direction, located between the low voltage electrode and the high voltage electrode, a high voltage electrode cooling unit forming a cooling water passage insulated from the high voltage electrode inside the high voltage electrode. An alternating voltage is applied between the low voltage electrode and the high voltage electrode and a discharge is produced in the discharge gap, into which oxygen is injected, to produce ozone gas.

The ozonizer of this present invention is small in size, and capable of generating highly concentrated ozone with a high (generating) efficiency. A low voltage electrode includes a disc-shaped low voltage electrode main body facing a high voltage electrode and an extension at one side of the low voltage electrode main body, and the extensions are laminated in layers on a base via blocks, and a coolant inlet portion for supplying coolant to a coolant passage, a coolant outlet portion for exhausting coolant from the coolant passage, and an ozone gas outlet portion for exhausting ozone gas from the ozone gas passage pass through the extensions and the blocks, respectively, in a laminating direction of the discharge cells.

An ozonizer has a flat plate-shaped low voltage electrode, a flat plate-shaped high voltage electrodefacing a main surface of the low voltage electrode. The ozonizer also has a flat plate-shaped dielectricand a spacer for forming a discharge gapof a thin thickness in a laminating direction provided between the low voltage electrodeand the electrode, an electrode cooling sheetprovided facing a main surface of the electrodeat a side opposite the discharge gapfor cooling the electrode. The ozonizer also has a thermal conducting/electric insulating sheetsandwiched between the electrodeand the electrode cooling sheet. An alternating voltage is applied between the low voltage electrodeand the electrodeand a discharge is produced in the discharge gapinjected with oxygen gas to produce ozone gas.

Growing community of inventors

Tokyo, Japan

Yuji Ganryu