JPS6456190A - Instrument for measuring chlorine demand - Google Patents

Instrument for measuring chlorine demand

Info

Publication number
JPS6456190A
JPS6456190A JP21217487A JP21217487A JPS6456190A JP S6456190 A JPS6456190 A JP S6456190A JP 21217487 A JP21217487 A JP 21217487A JP 21217487 A JP21217487 A JP 21217487A JP S6456190 A JPS6456190 A JP S6456190A
Authority
JP
Japan
Prior art keywords
solenoid valve
chlorine
open
free chlorine
meter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP21217487A
Other languages
Japanese (ja)
Other versions
JPH0230755B2 (en
Inventor
Masaru Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Prefecture
Original Assignee
Osaka Prefecture
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osaka Prefecture filed Critical Osaka Prefecture
Priority to JP21217487A priority Critical patent/JPH0230755B2/en
Publication of JPS6456190A publication Critical patent/JPS6456190A/en
Publication of JPH0230755B2 publication Critical patent/JPH0230755B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

PURPOSE:To execute feed forward control of the chlorine dosage of a cleaning treatment by controlling the rate of supplying chemical solns. in such a manner that the concn. of the residual chlorine in a liquid after mixing is maintained in the range of the upper and lower limit values of the concn. of the residual chlorine set in a residual chlorine meter in accordance with said values. CONSTITUTION:The volume of the chemical solns. from for example, measuring tanks 3, 5 is assumed to be 5ppm in terms of the concn. of the free chlorine in the raw water and the volume from measuring tanks 4, 6 to be 10ppm and the upper limit value set in the residual chlorine meter 16 is assumed to be 7ppm and the lower limit value to be 1ppm. 5ppm Free chlorine is supplied to a mixing tank 13 and is consumed by reaction with the components in the raw water when only the solenoid valve S1 is open. The residual chlorine meter 16 measures the free chlorine in the liquid discharged from the mixing tank 13 and the solenoid valve S1 is held open when the free chlorine is between 1-7ppm. A control device 17 emits the command to close the solenoid valve S1 and to open a solenoid valve S2 when the value indicated on the meter 16 falls to <=1ppm. 10ppm Free chlorine is then supplied from the measuring tank 4 to the mixing tank 13. The control device 17 emits the command to close the solenoid valve S2 and to open the solenoid valve S1 to restore 5ppm supply rate when the indicated value exceeds 7ppm. The command to open the solenoid valves S1, S2 is emitted and the free chlorine is supplied at 15ppm in total when the indicated value exceeds 1ppm.
JP21217487A 1987-08-25 1987-08-25 ENSOYOKYURYOSOKUTEISOCHI Expired - Lifetime JPH0230755B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21217487A JPH0230755B2 (en) 1987-08-25 1987-08-25 ENSOYOKYURYOSOKUTEISOCHI

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21217487A JPH0230755B2 (en) 1987-08-25 1987-08-25 ENSOYOKYURYOSOKUTEISOCHI

Publications (2)

Publication Number Publication Date
JPS6456190A true JPS6456190A (en) 1989-03-03
JPH0230755B2 JPH0230755B2 (en) 1990-07-09

Family

ID=16618131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21217487A Expired - Lifetime JPH0230755B2 (en) 1987-08-25 1987-08-25 ENSOYOKYURYOSOKUTEISOCHI

Country Status (1)

Country Link
JP (1) JPH0230755B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094576A (en) * 2008-10-14 2010-04-30 Omega:Kk Method for purifying wastewater
WO2012117712A1 (en) * 2011-02-28 2012-09-07 日本曹達株式会社 Water treatment device and water treatment method
JP2014030780A (en) * 2012-08-01 2014-02-20 Miura Co Ltd Water treatment system
JP2015039653A (en) * 2013-08-20 2015-03-02 三浦工業株式会社 Water treatment system
JP2022015662A (en) * 2020-07-09 2022-01-21 ゼネラルヒートポンプ工業株式会社 Heat pump system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11610467B2 (en) 2020-10-08 2023-03-21 Ecolab Usa Inc. System and technique for detecting cleaning chemical usage to control cleaning efficacy

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094576A (en) * 2008-10-14 2010-04-30 Omega:Kk Method for purifying wastewater
WO2012117712A1 (en) * 2011-02-28 2012-09-07 日本曹達株式会社 Water treatment device and water treatment method
JPWO2012117712A1 (en) * 2011-02-28 2014-07-07 日本曹達株式会社 Water treatment apparatus and water treatment method
JP2014030780A (en) * 2012-08-01 2014-02-20 Miura Co Ltd Water treatment system
JP2015039653A (en) * 2013-08-20 2015-03-02 三浦工業株式会社 Water treatment system
JP2022015662A (en) * 2020-07-09 2022-01-21 ゼネラルヒートポンプ工業株式会社 Heat pump system

Also Published As

Publication number Publication date
JPH0230755B2 (en) 1990-07-09

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