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IN2014DE00710A - - Google Patents

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Publication number
IN2014DE00710A
IN2014DE00710A IN710DE2014A IN2014DE00710A IN 2014DE00710 A IN2014DE00710 A IN 2014DE00710A IN 710DE2014 A IN710DE2014 A IN 710DE2014A IN 2014DE00710 A IN2014DE00710 A IN 2014DE00710A
Authority
IN
India
Prior art keywords
current
sacrificial anode
water
conductivity state
measured
Prior art date
Application number
Inventor
Ray Oliver Knoeppel
Yao Zhen Hu
Russell Banks
Brian T Branecky
Original Assignee
Smith Corp A O
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 Smith Corp A O filed Critical Smith Corp A O
Publication of IN2014DE00710A publication Critical patent/IN2014DE00710A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/04—Controlling or regulating desired parameters
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/22—Monitoring arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/40—Arrangements for preventing corrosion
    • F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
    • F24H9/455—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Fuel Cell (AREA)
  • Resistance Heating (AREA)

Abstract

Systems and methods are described for controlling the current of a sacrificial anode based on the conductivity state of the water. An unregulated current of the sacrificial anode relative to the water tank is measured and a conductivity state of the water is identified based on the measured unregulated current. A maximum current limit for the sacrificial anode is determined based on the conductivity state of the water and the current of the sacrificial anode is limited such that the current does not exceed the determined maximum current limit.
IN710DE2014 2013-03-15 2014-03-12 IN2014DE00710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/838,954 US9267209B2 (en) 2013-03-15 2013-03-15 Sacrificial anode control

Publications (1)

Publication Number Publication Date
IN2014DE00710A true IN2014DE00710A (en) 2015-06-19

Family

ID=51500384

Family Applications (1)

Application Number Title Priority Date Filing Date
IN710DE2014 IN2014DE00710A (en) 2013-03-15 2014-03-12

Country Status (4)

Country Link
US (1) US9267209B2 (en)
CN (1) CN104046999B (en)
CA (1) CA2844199C (en)
IN (1) IN2014DE00710A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9612037B2 (en) * 2014-10-01 2017-04-04 Haier Us Appliance Solutions, Inc. Gas water heater control alternate power source
CN105910275B (en) * 2016-04-12 2019-11-15 芜湖美的厨卫电器制造有限公司 water heater
US10612817B2 (en) 2016-11-08 2020-04-07 A. O. Smith Corporation System and method of controlling a water heater having a powered anode
EP3662095A1 (en) * 2017-08-04 2020-06-10 Ørsted Wind Power A/S Cathodic protection for offshore wind turbine steel support structures
US10571153B2 (en) 2017-12-21 2020-02-25 Rheem Manufacturing Company Water heater operation monitoring and notification
WO2021087089A1 (en) * 2019-10-29 2021-05-06 Radtech, Llc Sacrificial anode and method for determining anode health for water heater early warning system
US11788771B2 (en) * 2021-05-19 2023-10-17 A. O. Smith Corporation Sacrifical anode control for a water heater

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037920A (en) 1958-05-26 1962-06-05 Patrol Valve Co Indicator system for sacrificial anodes
US3657084A (en) 1963-02-04 1972-04-18 Ernst Beer Method of mounting electrode
US3715566A (en) * 1972-01-24 1973-02-06 Smith Corp A Corrosion guard system for electric water heater
US3860787A (en) 1973-11-05 1975-01-14 Rheem International Immersion type heating element with a plastic head for a storage water heater tank
CA1035723A (en) * 1974-04-30 1978-08-01 Sian W. Khoo Sacrificial anode
US4306189A (en) * 1979-08-27 1981-12-15 Rheem Manufacturing Company Anode depletion detector
US4407711A (en) 1979-11-02 1983-10-04 Texas Instruments Incorporated Corrosion protection system for hot water tanks
JPS62290889A (en) 1986-06-10 1987-12-17 Sekisui Chem Co Ltd Control device for liquid heater
US5256267A (en) * 1993-01-14 1993-10-26 Rheem Manufacturing Company Resistored sacrificial anode assembly for metal tank
US6183625B1 (en) 1999-11-08 2001-02-06 Brunswick Corporation Marine galvanic protection monitor
US7372005B2 (en) * 2004-09-27 2008-05-13 Aos Holding Company Water storage device having a powered anode

Also Published As

Publication number Publication date
US20140262822A1 (en) 2014-09-18
CA2844199C (en) 2021-11-23
CN104046999A (en) 2014-09-17
CA2844199A1 (en) 2014-09-15
US9267209B2 (en) 2016-02-23
CN104046999B (en) 2017-11-28

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