EP0171504A2 - Wassererhitzer und Verfahren zum Erhitzen von Wasser - Google Patents

Wassererhitzer und Verfahren zum Erhitzen von Wasser Download PDF

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Publication number
EP0171504A2
EP0171504A2 EP85103703A EP85103703A EP0171504A2 EP 0171504 A2 EP0171504 A2 EP 0171504A2 EP 85103703 A EP85103703 A EP 85103703A EP 85103703 A EP85103703 A EP 85103703A EP 0171504 A2 EP0171504 A2 EP 0171504A2
Authority
EP
European Patent Office
Prior art keywords
combustion
water heater
combustion air
space
members
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.)
Ceased
Application number
EP85103703A
Other languages
English (en)
French (fr)
Other versions
EP0171504A3 (de
Inventor
Otto Z. Vago
Ernest Wenczl
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.)
State Industries LLC
Original Assignee
State Industries LLC
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 State Industries LLC filed Critical State Industries LLC
Publication of EP0171504A2 publication Critical patent/EP0171504A2/de
Publication of EP0171504A3 publication Critical patent/EP0171504A3/de
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/04—Balanced-flue arrangements, i.e. devices which combine air inlet to combustion unit with smoke outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • F23J13/025—Linings; Jackets; Casings composed of concentric elements, e.g. double walled
    • 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
    • F24H1/205—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with furnace tubes
    • 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

Definitions

  • This invention relates to water heaters and a method of heating water. More particularly, it related to a gas (or oil) fired water heater wherein the products of combustion flow directly from the heater through an exterior wall to the outside of the space in which the heater is installed and the combustion air flows directly from outside the space in which the water heater is installed through an enclosed passageway to a combustion chamber for the heater.
  • a gas (or oil) fired water heater wherein the products of combustion flow directly from the heater through an exterior wall to the outside of the space in which the heater is installed and the combustion air flows directly from outside the space in which the water heater is installed through an enclosed passageway to a combustion chamber for the heater.
  • the present water heater by utilizing combustion air drawn directly from outside and preheating such combustion air, results in increased efficiency. Also, by directing flow of the combustion air in a 360° fashion around the exterior surface of the inner jacket and the inner surface of the outer jacket, pilot outage due to excessive drafts is substantially reduced. Also, such combustion air space surrounding the tank wall provides additional insulation to the water in the tank to thereby reduce standby heat loss. To applicant's knowledge, the above stated advantages are not found in any prior art water heaters.
  • a water heater including a water tight tank means having a tank wall and top and bottom members welded thereto.
  • a combustion chamber is located beneath the bottom head member and a burner means is mounted in the combustion chamber.
  • a flue tube extends upwardly in the tank means for conducting products of combustion from the combustion chamber to a vent tube.
  • a combustion products vent tube is provided for conducting products of combustion from the flue tube directly to the outside through an exterior wall in the space in which the water heater is installed.
  • a combustion air transmission means is provided for conducting combustion air directly from outside through the exterior wall in the space in which the water heater is installed.
  • Such transmission means includes a first air passage space formed between a first jacket member mounted around and spaced from the tank wall and a second jacket member mounted around and spaced from the first jacket member. The first and second jacket members are concentrically arranged with the space therebetween constituting such first air passage space through which combustion air flows downwardly to the combustion chamber.
  • the water heater of the present invention includes a liquid tight tank 10 comprised of a tank wall 12 and top and bottom head members 14 and 16 welded thereto.
  • the tank 10 further includes a central flue tube 18 welded to bottom head 16 and extending upwardly through an opening 20 in top head 14, to which it is welded.
  • the tank has a skirt member 22 fastened to the bottom of tank wall 12.
  • the skirt has a plurality of openings 24 spaced around the lower periphery thereof, the function of which will be explained in detail hereinafter. Skirt member 22 in effect becomes an extension of tank wall 12.
  • first jacket member 26 Positioned around and spaced from tank wall 12 is a first jacket member 26 having top and bottom members 28 and 30 fastened thereto.
  • First jacket member 26 has a plurality of openings 38 spaced around the lower periphery thereof, the function of which will be explained in detail hereinafter.
  • second jacket member 32 Positioned around and spaced from first jacket member 26 is a second jacket member 32 having top and bottom members 34 and 36 fastened thereto.
  • first jacket member 26 and second jacket member 32 below openings 38 is filled with a suitable insulation material designated by reference numeral 42.
  • the water heater assembly described above is mounted on a base assembly 44, the interior of which is filled with a suitable insulation material designated by the reference numeral 46.
  • a combustion chamber 48 is located beneath bottom head 16 and a gas (or oil) fired burner 50 of a suitable design is mounted in the combustion chamber.
  • the water heater tank 10 is provided with an inlet fitting 52, an outlet fitting 54 and a drain fitting 56.
  • Specially designed circular non-metallic diaphragm members 58, 60 and 62 are mounted around fittings 52, 54 and 56.
  • central flue tube 18 is connected to a vent outlet assembly 64 and jacket top member 34 is connected to a combustion air inlet assembly 66.
  • Diaphragm members 58, 60 and 62 are of identical design, each including a grooved upper flange 68, a conical body portion 70 and a sealing tail portion 72.
  • Tail portion 72 of diaphragm member 62 is sealed against fitting 56 and the flange 68 is seated in an opening 74 in second jacket member 32.
  • Tail portion 72 of diaphragm member 58 is sealed against fitting 52 and the flange 68 is seated in an opening 76 in top member 34.
  • the tail portion 72 of diaphragm member 60 is sealed against fitting 54 and the flange 68 is seated in an opening 78 in top member 34.
  • vent outlet assembly 64 is comprised of a curved tubular section 106 and a straight tubular section 108.
  • the joints between one end of section 106 and tube 18 and the other end of section 106 and section 108 are the same.
  • Each joint is comprised of an outwardly flared end portion 110 on the tube itself and an inwardly flared member 112 fitted in the ends of tubes 106, 108 with a friction fit.
  • a high temperature gasket material 114 is positioned between the flared portions 110 and 112.
  • a vent cap assembly 84 is shown in detail in Fig. 2 and is comprised of a vent exhaust tube 86, a wind deflector 88 fastened over the end of tube 86, and an air intake grill member 90 mounted on the exterior of tube 86. Attached to the end of tube 86 is a separate screen member 116 having perforations 92 therein. The wall 93 of grill member 90 is perforated as indicated by reference numeral 94. Fig. 2 shows only representative portions of perforations 92 and 94.
  • Straight tubular section 108 is provided with a groove 109 in the end thereof in which an o-ring type sealing member 111 is seated.
  • Section 108 is telescopically inserted into vent exhaust tube 86 with o-ring 111 serving to seal the joint between the two sections.
  • Combustion air inlet assembly 66 if comprised of a curved tubular section 118, a first straight tubular section 120 and a second straight tubular section 122.
  • Curved section l18 is connected at one end to top member 34.
  • Section 120 has an inwardly flared end 124 which is frictionally fitted into the end of section :.18.
  • Section 122 is provided with a groove 126 in the end thereof in which sealing compound material 128 is captured.
  • Section 122 extends through opening 80 in wall 82 and is telescopically inserted into section 120 with sealing compound material 128 serving to seal the joint between the two sections.
  • Section 122 is provided with a flange 130 for the purpose of fastening section 122 to the exterior of wall 82 by suitable fasteners (not shown).
  • vent outlet assembly 64 combustion air inlet assembly 66 and vent cap assembly 84
  • the horizontal spacing of the water heater relative to wall 82 can be readily adjusted to a degree by virtue of the telescopic relationship between vent sections 108 and 86 and combustion air sections 120 and 122.
  • the structure described facilitates installation of the water heater.
  • Figs. 5 and 6 show the access door assembly for the water heater.
  • the combustion chamber 48 of the water heater is provided with a removable access door assembly 134 comprised of mating door members 136, 138.
  • a heat shield member 140 fits behind the door members 136, 138 when in assembled position.
  • Door members 136, 138 are provided with outwardly extending flange portions 142, 144.
  • Gasket portions 146, 148 are provided on the inside surface of door members 136, 138 and flange portions 142, 144. Such gasket portions 146, 148 are provided with grooves 150, 152 to allow the door members to fit snugly around gas lines 154, 156. Gas lines 154, 156 are connected to a thermostatic control unit (not shown) of conventional design.
  • Door member 136 is provided with a viewing window 158.
  • Fig. 6 shows the access door assembly 134 in its assembled position.
  • the door members are removably fastened to the jacket 32 by fasteners 160 and the flange portion 142, 144 on the doors are fastened together by fasteners 162.
  • the door assembly when assembled as shown in Fig. 6 will effectively seal the combustion chamber 48 from the space in which the water heater is installed.
  • combustion air from the outside of the building in which the water heater is installed is drawn in through the perforations 94 in grill member 90.
  • Such combustion air flows through the space 98 berween the concentrically arranged vent outlet and combustion air inlet assemblies 64 and 66. From there, the combustion air flows radially across the top of the water heater through the space 100 between jacket top members 28 and 34.
  • Diaphragm members 58 and 60 prevent leakage of air at inlet and outlet fittings 52 and 54.
  • Diaphragm member 62 prevents leakage of air at drain fitting 56.
  • the combustion air flowing into the combustion chamber 48 supports combustion at burner 50.
  • the products of combustion from burner 50 flow upwardly from chamber 48 into flue tube 18.
  • Such products of combustion flow upwardly through flue tube 18, then through vent outlet assembly 64 and then out to atmosphere through perforations 92.
  • the flow of products of combustion as described above is illustrated by the dotted arrows in Fig. 1.
  • the water heater construction and operation as described above provides several advantages.
  • vent outlet assembly 64 The combustion air flowing past the external surface of vent outlet assembly 64 and past the external surface of first jacket member 26 will be preheated, resulting in increased efficiency. Conversely, the products of combustion flowing through vent outlet assembly 64 will be cooled to thereby permit such products of combustion to be vented directly to the outside without the requirement of a conventional chimney.
  • combustion air space 102 surrounding jacket 26 provides additional insulation to the water in tank 10 to thereby reduce standby heat loss.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
  • Air Supply (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP85103703A 1984-08-09 1985-03-27 Wassererhitzer und Verfahren zum Erhitzen von Wasser Ceased EP0171504A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63919584A 1984-08-09 1984-08-09
US639195 1984-08-09

Publications (2)

Publication Number Publication Date
EP0171504A2 true EP0171504A2 (de) 1986-02-19
EP0171504A3 EP0171504A3 (de) 1987-07-22

Family

ID=24563113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103703A Ceased EP0171504A3 (de) 1984-08-09 1985-03-27 Wassererhitzer und Verfahren zum Erhitzen von Wasser

Country Status (4)

Country Link
EP (1) EP0171504A3 (de)
JP (1) JPH07104045B2 (de)
AU (1) AU576827B2 (de)
CA (1) CA1264622A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602578A1 (fr) * 1986-08-06 1988-02-12 Nuovo Pignone Spa Systeme d'accumulation d'eau chaude a chauffage au gaz pour la production d'eau chaude a usage domestique
EP0278270A3 (de) * 1987-02-11 1988-11-09 Robert Bosch Gmbh Gasbeheizter Wassererhitzer mit einer geschlossenen Verbrennungskammer
GB2220477A (en) * 1988-05-24 1990-01-10 Stelrad Group Ltd Boilers
GB2238378A (en) * 1989-10-20 1991-05-29 Vaillant Joh Gmbh & Co Fresh air supply and exhaust gas discharge arrangement for a fuel-fired heat source
AT406416B (de) * 1996-07-26 2000-05-25 Vaillant Gmbh Gasbeheizter wasserheizer
EP1094274A1 (de) * 1999-10-22 2001-04-25 Robert Bosch Gmbh Abgasabführung für Verbrennungsanlagen, insbesondere Abgas-Rohrleitungssysteme mit Innen- und Abgasrohr aus Aluminiumlegierung für eine Dachdurchführung
GB2359352A (en) * 2000-02-21 2001-08-22 Docherty Ltd H A balanced flue terminal
EP1134496A1 (de) * 2000-03-15 2001-09-19 Thermic Investments S.A. Mit flüssigem Brennstoff betriebenes gasdichtes Heizgerät
NL1020564C2 (nl) * 2002-05-08 2003-11-11 Interactive Bouwprodukten B V Nokpan met ge´ntegreerde rookgasafvoer en verbrandingsluchttoevoer.
GB2402464A (en) * 2003-06-04 2004-12-08 Alley Enterprises Ltd A boiler flue

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11732925B2 (en) * 2020-12-17 2023-08-22 Rheem Manufacturing Company Screen cover for attaching to open end of conduits
JP7627598B2 (ja) * 2021-04-05 2025-02-06 リンナイ株式会社 複合燃焼装置及び接続アダプタ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091223A (en) * 1961-02-27 1963-05-28 Bastian Morley Co Inc Sealed vent water heater
JPS4719843U (de) * 1971-01-26 1972-11-06
IT1083353B (it) * 1976-08-03 1985-05-21 Leblanc Sa E L M Perfezionamenti ai sistemi di scarico a ventosa dei gas di combustione di apparecchi a gas a tenuta
AU522722B2 (en) * 1978-09-14 1982-06-24 Rhys Edgar Edwards Hot water unit of the storage type
AU7205881A (en) * 1980-06-27 1982-05-06 Vulcan Australia Ltd. Gas water heater

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602578A1 (fr) * 1986-08-06 1988-02-12 Nuovo Pignone Spa Systeme d'accumulation d'eau chaude a chauffage au gaz pour la production d'eau chaude a usage domestique
BE1001161A3 (fr) * 1986-08-06 1989-08-01 Nuovo Pignone Spa Systeme d'accumulation d'eau chaude a chauffage au gaz pour la production d'eau chaude a usage domestique.
EP0278270A3 (de) * 1987-02-11 1988-11-09 Robert Bosch Gmbh Gasbeheizter Wassererhitzer mit einer geschlossenen Verbrennungskammer
GB2220477A (en) * 1988-05-24 1990-01-10 Stelrad Group Ltd Boilers
GB2238378A (en) * 1989-10-20 1991-05-29 Vaillant Joh Gmbh & Co Fresh air supply and exhaust gas discharge arrangement for a fuel-fired heat source
GB2238378B (en) * 1989-10-20 1993-09-01 Vaillant Joh Gmbh & Co Fresh air supply and exhaust gas discharge arrangement for a fuel-fired,fan-assisted heat source
AT406416B (de) * 1996-07-26 2000-05-25 Vaillant Gmbh Gasbeheizter wasserheizer
EP1094274A1 (de) * 1999-10-22 2001-04-25 Robert Bosch Gmbh Abgasabführung für Verbrennungsanlagen, insbesondere Abgas-Rohrleitungssysteme mit Innen- und Abgasrohr aus Aluminiumlegierung für eine Dachdurchführung
GB2359352A (en) * 2000-02-21 2001-08-22 Docherty Ltd H A balanced flue terminal
EP1134496A1 (de) * 2000-03-15 2001-09-19 Thermic Investments S.A. Mit flüssigem Brennstoff betriebenes gasdichtes Heizgerät
NL1020564C2 (nl) * 2002-05-08 2003-11-11 Interactive Bouwprodukten B V Nokpan met ge´ntegreerde rookgasafvoer en verbrandingsluchttoevoer.
GB2402464A (en) * 2003-06-04 2004-12-08 Alley Enterprises Ltd A boiler flue
GB2402464B (en) * 2003-06-04 2007-05-09 Alley Enterprises Ltd A boiler flue

Also Published As

Publication number Publication date
JPS6146843A (ja) 1986-03-07
JPH07104045B2 (ja) 1995-11-13
AU3958885A (en) 1986-02-13
EP0171504A3 (de) 1987-07-22
AU576827B2 (en) 1988-09-08
CA1264622A (en) 1990-01-23

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Inventor name: WENCZL, ERNEST