EP0913651A1 - Wärmetauscherelement mit hohem Wirkungsgrad für einen Heizkörper in einem Gliederheizkessel - Google Patents

Wärmetauscherelement mit hohem Wirkungsgrad für einen Heizkörper in einem Gliederheizkessel Download PDF

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Publication number
EP0913651A1
EP0913651A1 EP98440235A EP98440235A EP0913651A1 EP 0913651 A1 EP0913651 A1 EP 0913651A1 EP 98440235 A EP98440235 A EP 98440235A EP 98440235 A EP98440235 A EP 98440235A EP 0913651 A1 EP0913651 A1 EP 0913651A1
Authority
EP
European Patent Office
Prior art keywords
deflector
wall
exchanger element
baffle
element according
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
EP98440235A
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English (en)
French (fr)
Other versions
EP0913651B1 (de
Inventor
Michel Fuhlhaber
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.)
De Dietrich Thermique SAS
Original Assignee
De Dietrich Thermique 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 De Dietrich Thermique SAS filed Critical De Dietrich Thermique SAS
Publication of EP0913651A1 publication Critical patent/EP0913651A1/de
Application granted granted Critical
Publication of EP0913651B1 publication Critical patent/EP0913651B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • 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

Definitions

  • Underfloor heating and certain elements water circulation heaters for rooms and premises allow to use water for heating so-called low temperature lying in the range 20 ° C-35 ° C.
  • the ideal in terms of yield is to directly use the water coming out of the boiler brought to these temperatures considered low in the field of heating.
  • Boilers serving water at such low temperature condense in the downstream part of the path combustion gases causing the disadvantages that we know: corrosion by acid condensates causing deterioration of the exchanger elements, difficulties in collecting and disposing of condensates.
  • the structures overlap each other to achieve a suitable deceleration of gases and fumes from burning that get rid of their calories as they progress along the elements exchangers.
  • exchanger elements are produced usually foundry cast iron causing the making fairly complex foundry molds with use of sand cores for the formation of hollow body.
  • the object of the invention is to remedy these disadvantages by making an element by foundry heat exchanger with baffle at low risk of manufacturing and free of sand residue after its evacuation phase, exchanger element which presents plus a high heat exchange efficiency.
  • the new core of sand ensures low-risk industrial manufacturing fault (s) resulting from deterioration or rupture of the sand core.
  • the invention relates to a high efficiency exchanger element for boiler sectionable with an internal structure of baffle bounded by two transverse structures each consisting of an oblique transverse plane and an inclined deflector distant from each other to form a deflector means and a secondary baffle.
  • the invention allows after molding to completely evacuate through the orifices existing nucleus residues lodged in re-entrant angles at the ends of the deflectors near the element body exchanger.
  • the yield is further increased general of the exchanger element by lengthening the path of water inside the room and removing the sleeping areas at the baffle walls.
  • the exchanger element according to the invention is intended for sectional boilers in particular condensing type. However, any application to another type of boiler not under any effort additional inventive comes under the present invention.
  • the exchanger element is in the form of a hollow body 1 of general shape approximately rectangular with two lateral faces exchange 2 and 3 provided with pins such as 4 in shape prismatic with rounded 5 end and cross section diamond 6.
  • pins constitute protruding points of each exchange side face 2 and 3 arranged in successive transverse rows such as 7 as represented. These rows are offset from those on the exchange side face opposite the adjacent exchanger element and protrude sufficiently of the junction plane between two exchanger elements neighbors 8 and 9 (figure 8) to nest in the free spaces between pimples such as 10 and constitute a flat volume 11 for the passage of combustion gases occupied mainly by spikes. Free spaces 10 form as many passages 12 in chicane for the slowing the evacuation of combustion gases.
  • pins 4 There are a majority of pins 4 of identical shape and size, a top line 13 smaller spikes and two columns end 14 and 15 formed by specific pins 16 of general shape in rectangular section arranged in alternating succession with symmetrical presentation.
  • junction 17 and 18 The area of pins on each exchange face 2 and 3 is delimited laterally by two edges of junction 17 and 18 projecting including the edges define the junction plane and serve as support for homologous songs from the neighboring exchanger element with interposition of a gasket 19 during assembly-juxtaposition of the heating body (figure 8).
  • the flat passage volume 11 formed by the junction of two neighboring exchanger elements 8 and 9 serves as a downdraft chimney for combustion gases.
  • the opposite side face is of conformation identical as shown in Figures 7 and 8.
  • the exchanger element includes a chamber interior 20 representing a flat interior volume crossed by the heat transfer fluid between an orifice lower inlet 21 and an upper outlet port 22.
  • the body of the exchanger element has a upper end 23 shaped as a recess 24.
  • This cavity 24 occupying practically the entire width of the exchanger element between an extension of the side wall and the top port block of outlet 22 is intended, with the exchanger elements neighbors 8, 9 and others forming the heating body of the boiler, to constitute a closed hearth at its upper end by the gas burner (not represented).
  • the body of the exchanger element is open to its lower end at the side faces exchange 2,3 and put in communication with a condensate collection receptacle (not shown).
  • This arrangement is typical of a boiler gas condensing. It conveniently avoids dripping condensate on the burner.
  • the interior volume of room 20 has a chicane structure materialized by two large walls slightly oblique one lower 25 and the other upper 26 not joining the wall of the adjacent lateral edge of junction 17 and 18 respectively of the element body exchanger.
  • the proximal end of each large wall 25 or 26 is offset from the adjacent wall of the inner chamber 20 of a constituent interval a restricted passage 27 and 28 respectively.
  • the large lower oblique walls 25 and upper 26 are slightly inclined rising in the direction of movement of the heat transfer fluid so to favor the passage of the fluid as for a divergent opening (figure 2). This is the case of the large lower wall 25 which delimits a compartment diverge from the lower inlet of the fluid, but also of the large upper wall 26 which does not cut the current, but forces it to a path elongated meander 29.
  • the great interest of the invention lies in being able to manufacture the exchanger element by a foundry technique with a core of sand mechanically strong ensuring repetitive quality in industrial manufacturing while improving advantages of the baffle structure interior.
  • the nucleus is produced in the form of a compact block 34 without large transverse notch (s).
  • edges protruding cross sections such as 43 and 44 along joining edges. These transverse edges at number of at least two on each side edge of junction share length in intervals approximately the same length. They aim to play the role of a picot in order to occupy the space between two pins of an end column.
  • the enamel layer provides protection against corrosion and smoothness on surfaces system improving the passage of combustion gases and avoiding the majority of incrustations and deposits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP98440235A 1997-10-31 1998-10-23 Wärmetauscherelement mit hohem Wirkungsgrad für einen Heizkörper in einem Gliederheizkessel Expired - Lifetime EP0913651B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9713881A FR2770625B1 (fr) 1997-10-31 1997-10-31 Element echangeur de chaleur a haut rendement destine a constituer le corps de chauffe d'une chaudiere sectionnable
FR9713881 1997-10-31

Publications (2)

Publication Number Publication Date
EP0913651A1 true EP0913651A1 (de) 1999-05-06
EP0913651B1 EP0913651B1 (de) 2001-09-12

Family

ID=9513040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98440235A Expired - Lifetime EP0913651B1 (de) 1997-10-31 1998-10-23 Wärmetauscherelement mit hohem Wirkungsgrad für einen Heizkörper in einem Gliederheizkessel

Country Status (4)

Country Link
EP (1) EP0913651B1 (de)
AT (1) ATE205589T1 (de)
DE (1) DE69801631T2 (de)
FR (1) FR2770625B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2791128A1 (fr) * 1999-03-19 2000-09-22 Dietrich Thermique Element echangeur de chaleur a picots pour chaudiere sectionnnable
US6968892B1 (en) 1998-06-12 2005-11-29 Chart Heat Exchangers Limited Heat exchanger
CN104165460A (zh) * 2013-05-19 2014-11-26 天津山姆燃气设备有限公司 一种分流补水锅片

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3425301A1 (de) * 2017-07-07 2019-01-09 Bekaert Combustion Technology B.V. Wärmetauscherelement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622266A1 (de) * 1985-07-30 1987-02-12 Vaillant Joh Gmbh & Co Verfahren zur herstellung eines waermetauschers aus aluminium und anwendung des waermetauschers als gusskesselglied
DE3724940A1 (de) * 1986-07-31 1988-02-04 Vaillant Joh Gmbh & Co Kesselglied
DE4142839A1 (de) * 1991-01-02 1992-07-09 Vaillant Joh Gmbh & Co Atmosphaerischer gliederkessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622266A1 (de) * 1985-07-30 1987-02-12 Vaillant Joh Gmbh & Co Verfahren zur herstellung eines waermetauschers aus aluminium und anwendung des waermetauschers als gusskesselglied
DE3724940A1 (de) * 1986-07-31 1988-02-04 Vaillant Joh Gmbh & Co Kesselglied
DE4142839A1 (de) * 1991-01-02 1992-07-09 Vaillant Joh Gmbh & Co Atmosphaerischer gliederkessel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6968892B1 (en) 1998-06-12 2005-11-29 Chart Heat Exchangers Limited Heat exchanger
FR2791128A1 (fr) * 1999-03-19 2000-09-22 Dietrich Thermique Element echangeur de chaleur a picots pour chaudiere sectionnnable
CN104165460A (zh) * 2013-05-19 2014-11-26 天津山姆燃气设备有限公司 一种分流补水锅片

Also Published As

Publication number Publication date
EP0913651B1 (de) 2001-09-12
FR2770625A1 (fr) 1999-05-07
DE69801631T2 (de) 2002-06-27
DE69801631D1 (de) 2001-10-18
FR2770625B1 (fr) 1999-12-17
ATE205589T1 (de) 2001-09-15

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