EP0237443B1 - Wärmetauscher für Gas-Wassererhitzer - Google Patents

Wärmetauscher für Gas-Wassererhitzer Download PDF

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Publication number
EP0237443B1
EP0237443B1 EP87400569A EP87400569A EP0237443B1 EP 0237443 B1 EP0237443 B1 EP 0237443B1 EP 87400569 A EP87400569 A EP 87400569A EP 87400569 A EP87400569 A EP 87400569A EP 0237443 B1 EP0237443 B1 EP 0237443B1
Authority
EP
European Patent Office
Prior art keywords
heating body
chamber
body according
water
exchanger
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
Application number
EP87400569A
Other languages
English (en)
French (fr)
Other versions
EP0237443A1 (de
Inventor
Claude Malhere
Jean-Michel Porcher
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.)
Chaffoteaux et Maury SAS
Original Assignee
Chaffoteaux et Maury SAS
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 Chaffoteaux et Maury SAS filed Critical Chaffoteaux et Maury SAS
Priority to AT87400569T priority Critical patent/ATE48309T1/de
Publication of EP0237443A1 publication Critical patent/EP0237443A1/de
Application granted granted Critical
Publication of EP0237443B1 publication Critical patent/EP0237443B1/de
Expired legal-status Critical Current

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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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel

Definitions

  • the invention relates to heaters for gas water heaters in the form of a vertical tubular chamber barred at its upper end by a heat exchanger itself comprising a section of piping intended to be traversed by the water to be heated, a portion of the wall of said chamber consisting of a protective sheet coated internally with a body of refractory material.
  • a heating body is known from document DE-A-2 505 765.
  • these heating bodies fall into two categories, namely humid chambers and dry chambers.
  • the humid chambers are constituted by a sheet metal chimney around which is wound a coil intimately attached to it by brazing, said coil being intended to be traversed by the water to be heated before its admission into the exchanger.
  • They consist of a tube of refractory material, such as a silica-alumina mixture, externally lined with a protective metal wall, said tube being capped by the exchanger.
  • This construction easily lends itself to automated manufacture and dismantling of all of the piping intended to be traversed by the water to be heated.
  • the dry chambers described above have the drawback of giving rise to distributions of superheated water during repeated drawing.
  • the refractory body constituting the internal face of the dry chamber is little cooled between successive draws and the amount of heat accumulated in this body during each operation of the device - and even between its successive operations, due to the The permanent lighting of the pilot light is relatively high to the point that this body often remains red.
  • these devices must raise by about 50 ° C the cold water temperature allowed for a prolonged drawing regime and, at the start of each drawing, this temperature rise must not exceed over 20 ° C this speed value.
  • the hot water drawn in regime must be brought to a temperature of about 70 ° C and this temperature must remain below 90 ° C at the start of each draw.
  • the object of the invention is, above all, to remedy these drawbacks by limiting the maximum initial overheating likely to be observed at the start of repeated drawing to 15 ° C.
  • the heating bodies according to the invention also include, like the dry chambers, a portion of wall made of refractory material doubled externally by a simple protective sheet, that is to say devoid of water pipe, and they are essentially characterized in that the front portion of said wall is a thermally conductive metal panel comprising a capacity traversed by water to be heated just upstream of the exchanger and in that this panel is mounted in an easily removable manner on the rest of the wall, in particular by screwing.
  • the invention includes, apart from these main provisions, certain other provisions which are preferably used at the same time and which will be more explicitly discussed below.
  • Figure 1 of this drawing shows in perspective view a water heater heater body established according to the invention.
  • FIG 2 similarly shows the same heater with its exchanger and its disassembled front panel.
  • Chamber 1 is equipped at its base with burner ramps (not shown) supplied with combustible gases and its role is to guide the flames coming from these ramps and the corresponding hot gases towards the exchanger.
  • the exchanger 2 is constituted, in a manner known per se, by a succession of vertical and parallel fins 3 braced by the parallel rectilinear strands 4 1 of a section of piping 4 intended to be traversed by the water to be heated , said strands forming zigzags with semicircular connections 4 2 which connect their ends two by two.
  • the zigzag portion of the section 4 is itself extended outside the exchanger by two elbows 4 3 , 4 4 oriented downwards, elbows one of which is itself extended by a vertical strand 4 5 then the other ends with a threaded end 5 for connection.
  • Room 1 comprises four flat panels, namely a rear panel 6, two side panels 7 and 8 and a front or front panel 9, the front of the room being the area where the user who controls the water heater is located. that the back corresponds to a support wall in the most general case or it is a wall appliance.
  • Each of the three rear 6 and side 7 and 8 panels 6 is constituted, as for the known dry chambers, by a plate 10 of refractory material, in particular of silica-alumina, externally lined with a metal plate 11.
  • the three plates 11 are preferably formed by folding along a U at right angles to the same sheet of galvanized steel.
  • edges of the three metal sections 11 are themselves folded at a right angle so as to form stiffening flaps for the partial trunk thus formed, the horizontal flaps 12 also serving as guide and / or closure flanges while the edges vertical 13, perforated at 14, serve as a support surface.
  • the front panel 9 is, for its part, constituted by a rectangular or square sheet 1 made of a thermally conductive metal such as copper, on the outer face of which is brazed a section of piping 16 also made of a thermally conductive metal such as the copper.
  • This sheet 15 is pierced near its vertical edges by slots 17 and it is attached by screwing to the vertical flaps 13 above using screws 18 cooperating with the holes 14.
  • the pipe section 16 is a zigzag coil having vertical rectilinear strands and terminated upwards by a flared end piece 19 (FIG. 2) placed in a location such that it can be easily connected so watertight with the nozzle 5 above using any suitable fitting 20 that can be easily removed, preferably of a screw-on type (FIG. 1).
  • the assembly of the exchanger 2 and of the sections of piping which exit therefrom constitutes a drawer which can be moved horizontally above the front panel 9 so as to be easily placed in the upper zone of the chamber 1, from the front of the unit, and to be removed from this area forward.
  • this drawer relative to the chamber 1 is advantageously ensured, at the rear, by resting its rear semi-circular strands 4 z on horizontal tabs 21 punctured in the rear sheet metal 11, and at the front by execution of connection 20.
  • the presence of the pipe section 16 just upstream of the exchanger 2 and in the immediate vicinity of the hot walls of the chamber 1 makes it possible to increase the volume of water immobilized in the hot portion of the device between the successive withdrawals. , and therefore increase the heat capacity of this volume of water and reduce momentary overheating.
  • the front panel 9 with water jacket forms between the combustion chamber and the front or front portion of the covering of the appliance a heat shield more efficient than a heat-accumulating refractory wall, which reduces the temperature. of said facade and therefore reduces on the one hand the burning sensations experienced during contact between this facade and the hands or faces of users, and on the other hand the heating of the volume located in front of the device.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Resistance Heating (AREA)
  • Details Of Fluid Heaters (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Claims (8)

1. Heizkörper für eine Gas-Wasserheizung, welcher die Form einer rohrförmigen vertikalen Kammer (1) hat, die an ihrem oberen Ende durch einen Wärmeaustauscher (2) abgeschlossen ist, der seinerseits einen Rohrleitungsschuß (4) aufweist, welcher von dem zu erwärmenden Wasser durchsetzt ist, wobei ein Teil (6, 7, 8) der Wand der Kammer durch ein Schutzblech (11) gebildet ist, das an der Innenseite mit einem Körper (10) aus feuerfestem Material überzogen ist, dadurch gekennzeichnet, daß der Stirnteil (9) der Wand eine Platte aus wärmeleitendem Metall ist, die einen von dem zu erhitzenden Wasser durchsetzten Speicherraum unmittelbar stromaufwärts des Austauschers aufweist, und daß diese Platte leicht lösbar am Rest der Wand befestigt ist, insbesondere durch Verschrauben (bei 18).
2. Heizkörper nach Anspruch 1, dadurch gekennzeichnet, daß der von der Stirnplatte gebildete Speicherraum einen Stutzen (19) aufweist, der vertikal nach oben gerichtet und leicht an einen Stutzen (5) anschließbar ist, der vertikal nach unten gerichtet und an einem Ende des Rohrleitungsschusses (4) des Austauschers (2) vorgesehen ist.
3. Heizkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stirnplatte (9) ein Blech (15) aufweist, an dem ein den Speicherraum bildender Rohrleitungsabschnitt (16) in enger Anlage angelötet ist.
4. Heizkörper nach Anspruch 3, dadurch gekennzeichnet, daß der am Blech (15) angelötete Abschnitt (16) durch eine zickzackförmige Rohrschlange gebildet ist.
5. Heizkörper nach Anspruch 4, dadurch gekennzeichnet, daß die geradlinigen Teile der Zickzacks vertikal orientiert sind.
6. Heizkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stirnplatte aus zwei parallelen Wänden gebildet ist, die geringen gegenseitigen Abstand haben, wobei ihre Ränder abdichtend miteinander verbunden sind, um auf diese Weise den Speicherraum zu bilden.
7. Heizkörper nach Anspruch 6, dadurch gekennzeichnet, daß zumindest eine der beiden Wände hohle Vertiefungen aufweist, deren Böden an die andere Wand angeschweißt sind.
8. Heizkörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Austauscher (2) die Form einer Schublade hat, die oberhalb der Stirnplatte (9) in horizontaler Richtung bewegbar und so ausgebildet ist, daß sie im Inneren des U lösbar untergebracht ist, welches vom Rest (6, 7, 8) der den Heizkörper begrenzenden Wand gebildet ist.
EP87400569A 1986-03-14 1987-03-13 Wärmetauscher für Gas-Wassererhitzer Expired EP0237443B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87400569T ATE48309T1 (de) 1986-03-14 1987-03-13 Waermetauscher fuer gas-wassererhitzer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8603689A FR2595796B1 (fr) 1986-03-14 1986-03-14 Perfectionnements aux corps de chauffe pour chauffe-eau a gaz
FR8603689 1986-03-14

Publications (2)

Publication Number Publication Date
EP0237443A1 EP0237443A1 (de) 1987-09-16
EP0237443B1 true EP0237443B1 (de) 1989-11-29

Family

ID=9333144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400569A Expired EP0237443B1 (de) 1986-03-14 1987-03-13 Wärmetauscher für Gas-Wassererhitzer

Country Status (9)

Country Link
US (1) US4751897A (de)
EP (1) EP0237443B1 (de)
JP (1) JPS62272062A (de)
AT (1) ATE48309T1 (de)
AU (1) AU599360B2 (de)
CA (1) CA1283008C (de)
DE (1) DE3761060D1 (de)
DK (1) DK164243C (de)
FR (1) FR2595796B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158069A (en) * 1991-12-16 1992-10-27 Teledyne Industries, Inc. Wind-resistant heating appliance
US5201807A (en) * 1992-02-26 1993-04-13 Gas Research Institute Gas-fired water heater
US5937768A (en) * 1996-01-04 1999-08-17 Atwood; Alvin Dale Portable multi-purpose outdoor fire container and hot water storage system
EP0816776B1 (de) * 1996-07-01 2002-10-09 Robert Bosch Gmbh Gasbeheizter Wassererhitzer und wassergekühlte Brennkammer
DE19626321A1 (de) * 1996-07-01 1998-01-08 Bosch Gmbh Robert Gasbeheizter Umlauf-Wasserheizer
AT404755B (de) * 1997-03-17 1999-02-25 Vaillant Gmbh Wärmetauscher
AT406085B (de) * 1998-04-06 2000-02-25 Vaillant Gmbh Heizschacht
US6951191B1 (en) * 2004-01-09 2005-10-04 Guan-Chou Lin Water heater provided with compact design and hot water temperature for human body
ITCZ20060019A1 (it) * 2006-07-17 2008-01-19 Francesco Tallarico Stufa a doppio combustibile
CN107504687B (zh) * 2017-06-14 2020-12-22 汤海明 一种多路并联扰流管式换热装置
CN107461931B (zh) * 2017-06-14 2021-02-05 汤海明 一种用于家用燃气热水器的换热装置
JP7035477B2 (ja) * 2017-11-21 2022-03-15 株式会社ノーリツ 熱交換器および温水装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE882296C (de) * 1943-08-05 1953-07-06 Vaillant Joh Kg Heizkoerper fuer gasbeheizte Durchlauferhitzer und Verfahren zu seiner Herstellung
DE2210575B2 (de) * 1972-03-04 1976-01-02 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zum Überziehen eines aus Kupfer bestehenden Wärmeübertragers für einen gasbeheizten Wassererhitzer mit einer Aluminium enthaltenden korrosionsfesten Schicht
DE2505765A1 (de) * 1975-02-12 1976-08-19 Bosch Gmbh Robert Wassererhitzer mit einem gas- oder oelbrenner
FR2499223B1 (fr) * 1979-11-23 1985-06-28 Landreau Andre Chaudiere, notamment pour installation de chauffage
US4361276A (en) * 1981-05-14 1982-11-30 Edward Paige Heating system having supplemental coil arrangement
US4421060A (en) * 1981-09-23 1983-12-20 Chore-Time Equipment, Inc. Nipple waterer
US4421066A (en) * 1982-02-16 1983-12-20 Teledyne Industries, Inc. High efficiency boiler
US4403573A (en) * 1982-03-29 1983-09-13 Cauchy Charles J Water heating apparatus for solid fuel firebox

Also Published As

Publication number Publication date
AU6998687A (en) 1987-09-17
ATE48309T1 (de) 1989-12-15
DK164243C (da) 1992-11-02
FR2595796A1 (fr) 1987-09-18
DE3761060D1 (de) 1990-01-04
AU599360B2 (en) 1990-07-19
FR2595796B1 (fr) 1988-06-17
JPS62272062A (ja) 1987-11-26
DK126087A (da) 1987-09-15
EP0237443A1 (de) 1987-09-16
US4751897A (en) 1988-06-21
CA1283008C (en) 1991-04-16
DK126087D0 (da) 1987-03-11
DK164243B (da) 1992-05-25

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