BR9801868A - Device to prevent incomplete combustion in a gas water heater. - Google Patents

Device to prevent incomplete combustion in a gas water heater.

Info

Publication number
BR9801868A
BR9801868A BR9801868-0A BR9801868A BR9801868A BR 9801868 A BR9801868 A BR 9801868A BR 9801868 A BR9801868 A BR 9801868A BR 9801868 A BR9801868 A BR 9801868A
Authority
BR
Brazil
Prior art keywords
flame
water heater
burner
gas water
heat exchanger
Prior art date
Application number
BR9801868-0A
Other languages
Portuguese (pt)
Inventor
Hideo Inagaki
Tomohito Kusui
Original Assignee
Paloma Ind Limited
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 Paloma Ind Limited filed Critical Paloma Ind Limited
Publication of BR9801868A publication Critical patent/BR9801868A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)

Abstract

<B>"DISPOSITIVO PARA IMPEDIR A COMBUSTãO INCOMPLETA EM UM AQUECEDOR DE áGUA A GáS"<D>. A presente invenção trata de um dispositivo para impedir a combustão incompleta em um aquecedor de água a gás, quando o trocador de calor é obstruído. Um controlador de queimador (30), aplica uma voltagem a uma haste de chama (38), que é posicionada na chama produzida por um orifício de chama de um queimador (20). O controlador de queimador (30) fecha uma válvula solenóide de gás (26), destinada ao suprimento de gás combustível ao queimador, se a chama presente detectada na haste de chama estiver com um valor inicial predeterminado ou abaixo desse valor. Um tubo de refluxo (13) é fornecido sobre uma saia interna (10). O tubo de refluxo (13) apresenta uma abertura conectada na sua extremidade superior a uma câmara de combustão, abaixo de um trocador de calor (12), tendo também na sua parte inferior um tubo de retorno (13b), que apresenta uma abertura oposta ao orifício de chama (22a), acima da haste de chama. Se o trocador de calor estiver obstruído, a descarga de combustão, na parte superior da câmara de combustão, é retornada ao orifício de chama para provocar uma elevação na chama. A ponta da haste de chama é dobrada de volta horizontalmente, para aumentar a sua área de contato com a chama, enquanto a metade do orifício de chama, oposto ao tubo de retorno, é fechada.<B> "DEVICE TO PREVENT INCOMPLETE COMBUSTION IN A GAS WATER HEATER" <D>. The present invention deals with a device to prevent incomplete combustion in a gas water heater, when the heat exchanger is obstructed. A burner controller (30) applies a voltage to a flame rod (38), which is positioned in the flame produced by a burner flame hole (20). The burner controller (30) closes a gas solenoid valve (26), intended for supplying combustible gas to the burner, if the present flame detected in the flame rod has a predetermined initial value or below it. A reflux tube (13) is provided over an inner skirt (10). The reflux tube (13) has an opening connected at its upper end to a combustion chamber, below a heat exchanger (12), also having a return tube (13b) at its bottom, which has an opposite opening to the flame hole (22a), above the flame rod. If the heat exchanger is blocked, the combustion discharge at the top of the combustion chamber is returned to the flame orifice to cause an increase in the flame. The tip of the flame rod is folded back horizontally to increase its area of contact with the flame, while half of the flame orifice, opposite the return tube, is closed.

BR9801868-0A 1997-04-02 1998-03-20 Device to prevent incomplete combustion in a gas water heater. BR9801868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9084206A JPH10281460A (en) 1997-04-02 1997-04-02 Incomplete-combustion preventing apparatus for gas water heater

Publications (1)

Publication Number Publication Date
BR9801868A true BR9801868A (en) 1999-10-05

Family

ID=13824020

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9801868-0A BR9801868A (en) 1997-04-02 1998-03-20 Device to prevent incomplete combustion in a gas water heater.

Country Status (7)

Country Link
JP (1) JPH10281460A (en)
KR (1) KR100522378B1 (en)
CN (1) CN1117244C (en)
AR (1) AR008731A1 (en)
BR (1) BR9801868A (en)
HK (1) HK1016250A1 (en)
TW (1) TW406173B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI650519B (en) * 2018-03-07 2019-02-11 台灣櫻花股份有限公司 Flame current detecting and analyzing method of hot-water heater, and hot-water heater having the same
CN108361961B (en) * 2018-04-11 2020-09-15 广东万家乐燃气具有限公司 Gas water heater and hot water system
CN108662791B (en) * 2018-05-14 2023-12-26 芜湖美的厨卫电器制造有限公司 water heater

Also Published As

Publication number Publication date
JPH10281460A (en) 1998-10-23
HK1016250A1 (en) 1999-10-29
AR008731A1 (en) 2000-02-09
CN1195093A (en) 1998-10-07
KR100522378B1 (en) 2005-12-05
TW406173B (en) 2000-09-21
CN1117244C (en) 2003-08-06
KR19980080971A (en) 1998-11-25

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Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted
B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2259 DE 22/04/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 13A, 14A, 15A, 16A, 17A, 18A, 19A E 20A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.