Title:
OZONE GENERATOR, NUTRIENT LIQUID CULTIVATION DEVICE USING THE SAME, AND CONTROL METHOD FOR OZONE CONCENTRATION
Document Type and Number:
Japanese Patent JP2018027868
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an ozone measurement method measuring an ozone concentration to a practical allowable tolerance without using an expensive ozone concentration meter, an inexpensive ozone generator with simple structure utilizing the above measurement method, and to provide a nutrient liquid cultivation device using the ozone generator.SOLUTION: There is provided an ozone generator 1 supplying a raw material gas from a raw material gas source to a discharge type ozonizer to generate ozone. In the generator, a flow-regulating valve 7 is provided between the raw material gas source 3 and the ozonizer 2, and a pressure-regulating valve 9 is provided at a secondary side of the valve 7. The ozone generator measures the concentration of ozone generated by the ozonizer 2 on the basis of the raw material gas flow rate regulated by the valve 7 and the ozonizer inner pressure regulated by the valve 9, and controls the concentration of ozone generated by the ozonizer 2 by controlling the opening degrees of the valve 7 and/or the valve 9 so that the measured ozone concentration becomes a prescribed one.SELECTED DRAWING: Figure 1
Inventors:
YADA KATSUHISA
Application Number:
JP2016160600A
Publication Date:
February 22, 2018
Filing Date:
August 18, 2016
Export Citation:
Assignee:
TOYO VALVE CO LTD
International Classes:
C01B13/11; A01G31/00; C01B13/10
Domestic Patent References:
| JP2014122157A | 2014-07-03 | |||
| JP2014058424A | 2014-04-03 | |||
| JP2000135278A | 2000-05-16 | |||
| JPH0873203A | 1996-03-19 | |||
| JPH0919695A | 1997-01-21 |
Attorney, Agent or Firm:
Tetsuo Kobayashi
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