DE3772355D1 - ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION. - Google Patents

ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION.

Info

Publication number
DE3772355D1
DE3772355D1 DE8787118903T DE3772355T DE3772355D1 DE 3772355 D1 DE3772355 D1 DE 3772355D1 DE 8787118903 T DE8787118903 T DE 8787118903T DE 3772355 T DE3772355 T DE 3772355T DE 3772355 D1 DE3772355 D1 DE 3772355D1
Authority
DE
Germany
Prior art keywords
pipe
waste gases
atmospheric
gas
waste
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.)
Expired - Fee Related
Application number
DE8787118903T
Other languages
German (de)
Inventor
Walter Dreizler
Ulrich Dreizler
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.)
DREIZLER WALTER 7000 STUTTGART DE
Original Assignee
DREIZLER WALTER 7000 STUTTGART DE
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 DREIZLER WALTER 7000 STUTTGART DE filed Critical DREIZLER WALTER 7000 STUTTGART DE
Priority to DE8787118903T priority Critical patent/DE3772355D1/en
Application granted granted Critical
Publication of DE3772355D1 publication Critical patent/DE3772355D1/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
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/002—Stoves
    • F24C3/004—Stoves of the closed type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/001—Details arrangements for discharging combustion gases
    • F24C15/002—Details arrangements for discharging combustion gases for stoves of the closed type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2202/00—Fluegas recirculation
    • F23C2202/30—Premixing fluegas with combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/03007—Sealed combustion chambers with balanced flue
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2211/00—Flue gas duct systems
    • F23J2211/10—Balanced flues (combining air supply and flue gas exhaust)
    • F23J2211/101—Balanced flues (combining air supply and flue gas exhaust) with coaxial duct arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

Gas heaters with atmospheric burners have the NOx content in their waste gases reduced by recycling a certain percentage of the waste gases into the air intake for the burner. The pipe for the waste gases, which is surrounded by a concentric pipe for the air intake from outside the building, has several reflux holes. The amount of the recycled waste gas is determined by restrictions or butterfly valves in either pipe. The atmospheric gas burner (20) at the bottom of the heater (1) receives the primary air (3) for the injector (4) and mixer tube (5) and the secondary air (7) through a channel (6) from the pipe (11a). A fan (8) with a motor (9) passes the waste gases through the box (19) to the concentric pipe (10a). Some of the waste gas is recycled through the reflux holes (12a). The amount is governed by restrictors (14.1,14.2,15), or a butterfly valve (13).S
DE8787118903T 1986-12-20 1987-12-19 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION. Expired - Fee Related DE3772355D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787118903T DE3772355D1 (en) 1986-12-20 1987-12-19 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863643797 DE3643797A1 (en) 1986-12-20 1986-12-20 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION FOR NO (DOWN ARROW) X (DOWN ARROW) REDUCTION
DE8787118903T DE3772355D1 (en) 1986-12-20 1987-12-19 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION.

Publications (1)

Publication Number Publication Date
DE3772355D1 true DE3772355D1 (en) 1991-09-26

Family

ID=6316800

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19863643797 Withdrawn DE3643797A1 (en) 1986-12-20 1986-12-20 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION FOR NO (DOWN ARROW) X (DOWN ARROW) REDUCTION
DE8787118903T Expired - Fee Related DE3772355D1 (en) 1986-12-20 1987-12-19 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19863643797 Withdrawn DE3643797A1 (en) 1986-12-20 1986-12-20 ATMOSPHERIC GAS HEATER WITH EXTERNAL EXHAUST GAS RECIRCULATION FOR NO (DOWN ARROW) X (DOWN ARROW) REDUCTION

Country Status (3)

Country Link
EP (1) EP0272660B2 (en)
AT (1) ATE66527T1 (en)
DE (2) DE3643797A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1235432B (en) * 1988-11-16 1992-07-10 Sarno Cosimo FOUR-POINT DEAD POINT CRANK
DE19510426A1 (en) * 1995-03-24 1996-09-26 Bosch Gmbh Robert heater
US6095792A (en) * 1998-08-21 2000-08-01 Texaco Inc. Flue gas recirculation system and method
FR2814797B1 (en) * 2000-09-29 2003-10-10 Leblanc Sa E L M IMPROVEMENTS IN OR RELATING TO HEATERS SUCH AS WALL-MOUNTED SUCTION CUPS
DE10333965B3 (en) * 2003-07-25 2005-05-04 Robert Bosch Gmbh Exhaust pipe for heaters
RU2365622C2 (en) 2006-12-22 2009-08-27 Закрытое акционерное общество "Научно-исследовательский институт Аджиномото-Генетика" (ЗАО АГРИ) METHOD OF PURINE NUCLEOZIDES AND NUCLEOTIDES PRODUCTION BY FERMENTATION WITH APPLICATION OF BACTERIA BELONGING TO GENUS Escherichia OR Bacillus
TR201008484A2 (en) 2010-10-15 2012-05-21 Bosch Termotekni̇k Sanayi̇ Ve Ti̇c.A.Ş. A heating device and a method for operating a heating device.
EP3285020B1 (en) * 2016-08-18 2020-07-22 Vaillant GmbH Heating device
CN106225014B (en) * 2016-08-23 2021-07-09 广东工业大学 Round bottom and flat bottom vessel heating device with flue gas circulation
CN110848713A (en) * 2019-11-11 2020-02-28 张家骥 Exhaust gas treatment system
FR3103881B1 (en) * 2019-11-29 2021-12-31 Soc Ind De Chauffage Sic Installation of heating and/or production of domestic hot water with improved maintenance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE37773C (en) * H. HERZFELDER in Brünn, Mähren, Theresien-Glacis 1 Innovation in regenerative gas stoves
US3765823A (en) * 1970-11-05 1973-10-16 Matsushita Electric Ind Co Ltd Forced suction and exhaust type gas burner apparatus
US4345897A (en) * 1980-04-21 1982-08-24 Stanton C Robert Recirculating system for gas-fired furnace

Also Published As

Publication number Publication date
EP0272660B2 (en) 1995-11-22
EP0272660A3 (en) 1989-10-18
EP0272660A2 (en) 1988-06-29
DE3643797A1 (en) 1988-06-23
ATE66527T1 (en) 1991-09-15
EP0272660B1 (en) 1991-08-21

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee