Title:
浴槽水浄化装置
Document Type and Number:
Japanese Patent JP4092046
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a water cleaning device for bathtub water enabling to perform a thermal sterilization treatment under appropriate temperature control, even when the detection error of water temperature exceeds an allowable value. SOLUTION: At least three water temperature sensors consisting of an inlet side thermistor 76 arranged in the upstream side of the inlet of a filter tank 110, an outlet side thermistor 74 arranged in the downstream side, and beside a comparison thermistor 75, are provided on the device, and a fault determination part 252 at least detects the temperature under coincidence condition (majority) of the water temperature detected by these and detects a fault thermistor by which the error has become large. Also the fault detection part 252 corrects the water temperature detected by the fault thermistor, based on the water temperature detected by other thermistors, and the corrected water temperature is used to control water temperature for the thermal sterilization treatment. Besides, plural kinds of the control procedures of the thermal sterilization treatments based on the inlet side thermistor 76 and on the outlet side thermistor 74, etc., are prepared and in accordance with the fault condition of the thermistor, these control procedures are switched.
Inventors:
Kiyoshi Hanazawa
Hisayasu Watanabe
Shingo Kimura
Hisayasu Watanabe
Shingo Kimura
Application Number:
JP18563399A
Publication Date:
May 28, 2008
Filing Date:
June 30, 1999
Export Citation:
Assignee:
Gaster Inc.
International Classes:
A47K3/00; F24H1/00; C02F1/02
Domestic Patent References:
| JP2254330A | ||||
| JP10075887A | ||||
| JP4175439A | ||||
| JP11083165A | ||||
| JP8327146A |
Attorney, Agent or Firm:
Hiroki Sasai