CA2209369A1 - Heating element for water heaters with scale control - Google Patents

Heating element for water heaters with scale control

Info

Publication number
CA2209369A1
CA2209369A1 CA2209369A CA2209369A CA2209369A1 CA 2209369 A1 CA2209369 A1 CA 2209369A1 CA 2209369 A CA2209369 A CA 2209369A CA 2209369 A CA2209369 A CA 2209369A CA 2209369 A1 CA2209369 A1 CA 2209369A1
Authority
CA
Canada
Prior art keywords
heating element
water heaters
scale control
return bend
flow
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
CA2209369A
Other languages
French (fr)
Other versions
CA2209369C (en
Inventor
Barry N. Jackson
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.)
Water Heater Innovations
Original Assignee
Water Heater Innovations
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 Water Heater Innovations filed Critical Water Heater Innovations
Publication of CA2209369A1 publication Critical patent/CA2209369A1/en
Application granted granted Critical
Publication of CA2209369C publication Critical patent/CA2209369C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • 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
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F24H9/0021—Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid

Abstract

An improvement in electrical elements for a water heater includes a mass attached to the element for reducing the deposition of hard water scale on element surfaces, particularly in the return bend areas. In one embodiment, a flow accelerator tube encloses the element. The flow accelerator tube has an inlet at one end and an outlet at a higher elevation at the opposite end. Water is induced to flow through the tube because of temperature change. In another embodiment, a solid mass with high surface area encloses the return bend areas to increase heat transfer at a lower temperature to reduce scaling and increase element life.
CA002209369A 1996-12-12 1997-07-03 Heating element for water heaters with scale control Expired - Fee Related CA2209369C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/766,426 1996-12-12
US08/766,426 US5878192A (en) 1996-12-12 1996-12-12 Heating element for water heaters with scale control

Publications (2)

Publication Number Publication Date
CA2209369A1 true CA2209369A1 (en) 1998-06-12
CA2209369C CA2209369C (en) 2000-04-18

Family

ID=25076386

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002209369A Expired - Fee Related CA2209369C (en) 1996-12-12 1997-07-03 Heating element for water heaters with scale control

Country Status (4)

Country Link
US (2) US5878192A (en)
JP (1) JP3053171B2 (en)
AU (1) AU737291B2 (en)
CA (1) CA2209369C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8606093B2 (en) 2004-07-05 2013-12-10 Lasag Ag Water heater or steam generator

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205291B1 (en) 1999-08-25 2001-03-20 A. O. Smith Corporation Scale-inhibiting heating element and method of making same
US6621985B1 (en) * 2002-05-07 2003-09-16 Sherwood-Templeton Coal Company, Inc. Electric water heater
JP4555347B2 (en) * 2004-12-20 2010-09-29 アンジェラントーニ インダストリエ エスピーエー Energy-saving environmental test tank and operation method
US7509033B2 (en) * 2006-12-15 2009-03-24 Rheem Manufacturing Company Side port insert design for water heater
IL181500A0 (en) * 2007-02-22 2007-07-04 Belkin Lev Scale inhibiting heating device
CN102235752B (en) * 2010-05-07 2013-08-07 爱烙达股份有限公司 Heating device for water heater
WO2012004763A1 (en) * 2010-07-07 2012-01-12 Jan Petrus Human Heating elements
US8867907B2 (en) * 2012-10-12 2014-10-21 Chevron U.S.A. Inc. Reservoir fluid heating devices and methods of heating
US20150110478A1 (en) * 2013-10-21 2015-04-23 Silvio Cardoso Hot water heater with in-tank heat exchanger tube
US9664411B2 (en) * 2014-08-26 2017-05-30 Haier Us Appliance Solutions, Inc. Water heater appliance with an angled anode
CN104713237B (en) * 2015-03-11 2017-08-11 范宝明 A kind of warm water heater for not producing incrustation scale
US20180066868A1 (en) * 2015-03-23 2018-03-08 Chin-Tien Lin Heating appliance structure
EP3325867B1 (en) 2015-07-22 2021-06-02 National Machine Group Hot water tank
CN105650861B (en) * 2016-03-15 2018-10-26 华能无锡电热器材有限公司 Equal temperature fields electric heating tube
CN105636254B (en) * 2016-03-16 2018-10-26 华能无锡电热器材有限公司 industrial process electric heater
US10429084B2 (en) * 2017-02-21 2019-10-01 A. O. Smith Corporation Heat pump water heater
CN114424001A (en) * 2019-09-27 2022-04-29 A.O.史密斯公司 Tankless water heater with integrated scale control module
US11940146B2 (en) * 2019-10-08 2024-03-26 Mhi Health Devices, Inc. Superheated steam and efficient thermal plasma combined generation for high temperature reactions apparatus and method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1320941A (en) * 1919-11-04 Frederick taylor
US2511902A (en) * 1950-06-20 Aquarium electrical heater
US1643673A (en) * 1926-06-02 1927-09-27 Warren C Merrill Electric-heating element
US1692646A (en) * 1926-12-29 1928-11-20 John Mark Gannon System for heating water
US1886135A (en) * 1930-10-01 1932-11-01 Fort Wayne Engineering And Mfg Water heater
GB415863A (en) * 1933-05-17 1934-09-06 Revo Electric Company Ltd An improved electrical water heating apparatus
US3614386A (en) * 1970-01-09 1971-10-19 Gordon H Hepplewhite Electric water heater
US3597588A (en) * 1970-05-25 1971-08-03 Patterson Kelley Co Building service water heating system
US4007371A (en) * 1973-08-02 1977-02-08 Njos Lester B Electric immersion heater for stock tanks
US4105895A (en) * 1976-02-02 1978-08-08 Electro-Therm, Inc. Electric water heater utilizing a heat pipe
IL61694A (en) * 1980-12-11 1985-02-28 Yitzhak Glazer Method of heating water and a heating unit for tanks utilizing such method
US4514617A (en) * 1983-01-19 1985-04-30 Haim Amit Two-stage electric water heater
US4777347A (en) * 1987-09-02 1988-10-11 Mottershead Bernard J Electric water heating tank with thermosiphonic circulation for improved heat recovery rate
US5293446A (en) * 1991-05-28 1994-03-08 Owens George G Two stage thermostatically controlled electric water heating tank
US5774627A (en) * 1996-01-31 1998-06-30 Water Heater Innovation, Inc. Scale reducing heating element for water heaters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8606093B2 (en) 2004-07-05 2013-12-10 Lasag Ag Water heater or steam generator

Also Published As

Publication number Publication date
AU737291B2 (en) 2001-08-16
AU2839397A (en) 1998-06-18
US5943475A (en) 1999-08-24
US5878192A (en) 1999-03-02
JP3053171B2 (en) 2000-06-19
MX9705793A (en) 1998-08-30
CA2209369C (en) 2000-04-18
JPH10172743A (en) 1998-06-26

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