US2015210545A1PendingUtilityA1

Ozone generator

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Assignee: NGK INSULATORS LTDPriority: Jan 24, 2014Filed: Jan 20, 2015Published: Jul 30, 2015
Est. expiryJan 24, 2034(~7.5 yrs left)· nominal 20-yr term from priority
Inventors:Yoshimasa KondoShoji YokoiTatsuya TerazawaNaoya Takase
C01B 2201/40C01B 2201/32C01B 2201/62C01B 2201/10C01B 13/11C01B 2201/14C01B 13/115
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Claims

Abstract

An ozone generator includes one or more electrode pairs each containing two electrodes arranged at a distance of a predetermined gap length and a power source for applying an alternating-current voltage between the two electrodes. In the ozone generator, ozone is produced when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes. The ozone generator has a discharge space formed between the two electrodes, and the ozone generator satisfies the condition of 0.5<V/f/L wherein V (m/s) represents a flow velocity of the source gas flowing through the discharge space, f (Hz) represents a frequency of the alternating-current voltage, and L (m) represents a length of the discharge space in the main flow direction of the source gas.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An ozone generator comprising:
 one or more electrode pairs each containing two electrodes arranged at a distance of a predetermined gap length; and   a power source for applying an alternating-current voltage between the two electrodes,   ozone being produced in the ozone generator when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes, wherein   the ozone generator has a discharge space formed between the two electrodes, and   the ozone generator satisfies a condition of
   0.5< V/f/L    
   wherein V (m/s) represents a flow velocity of the source gas flowing through the discharge space, f (Hz) represents a frequency of the alternating-current voltage, and L (m) represents a length of the discharge space in a main flow direction of the source gas.   
     
     
         2 . The ozone generator according to  claim 1 , wherein the ozone generator satisfies a condition of 1<V/f/L. 
     
     
         3 . The ozone generator according to  claim 1 , wherein the ozone generator satisfies a condition of 50>V/f/L. 
     
     
         4 . The ozone generator according to  claim 1 , wherein the ozone generator satisfies a condition of 20>V/f/L. 
     
     
         5 . The ozone generator according to  claim 1 , wherein the gap length is 0.2 mm or more and 0.5 mm or less. 
     
     
         6 . The ozone generator according to  claim 1 , wherein the source gas is an atmospheric air. 
     
     
         7 . The ozone generator according to  claim 1 , wherein each of the two electrodes contains a tubular dielectric body having a hollow portion and a conductive body disposed in the hollow portion. 
     
     
         8 . The ozone generator according to  claim 1 , wherein
 the ozone generator comprises a plurality of the electrode pairs arranged in parallel, in series, or in parallel and series, and   the ozone generator has a gas passage plane having a normal direction parallel to the main flow direction of the source gas, and a non-discharge space formed on the gas passage plane.   
     
     
         9 . The ozone generator according to  claim 1 , wherein a flow rate of the source gas flowing through the discharge space is 380 L/min or less.

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