EP0166989B1 - Wärmetauschplatte aus senkrechten Rohren, für Rückgewinnungsdampferzeuger, wie Schwarzlikördampferzeuger oder Stadtmüllverbrennungsofen, und Herstellungsverfahren - Google Patents

Wärmetauschplatte aus senkrechten Rohren, für Rückgewinnungsdampferzeuger, wie Schwarzlikördampferzeuger oder Stadtmüllverbrennungsofen, und Herstellungsverfahren Download PDF

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Publication number
EP0166989B1
EP0166989B1 EP85106871A EP85106871A EP0166989B1 EP 0166989 B1 EP0166989 B1 EP 0166989B1 EP 85106871 A EP85106871 A EP 85106871A EP 85106871 A EP85106871 A EP 85106871A EP 0166989 B1 EP0166989 B1 EP 0166989B1
Authority
EP
European Patent Office
Prior art keywords
tubes
fins
adjacent
portions
elements
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
EP85106871A
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English (en)
French (fr)
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EP0166989A1 (de
Inventor
Jean Fournier
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.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
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 Stein Industrie SA filed Critical Stein Industrie SA
Priority to AT85106871T priority Critical patent/ATE30636T1/de
Publication of EP0166989A1 publication Critical patent/EP0166989A1/de
Application granted granted Critical
Publication of EP0166989B1 publication Critical patent/EP0166989B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/20—Supporting arrangements, e.g. for securing water-tube sets
    • F22B37/202—Suspension and securing arrangements for contact heating surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/22—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies

Definitions

  • the present invention relates to a heat exchange panel with vertical tubes close to each other forming loops between an inlet and an outlet by which they are suspended from a rigid structure, and intended to be in contact by their outer surface with gas loaded with soot, in which the tubes of the central part are joined together by continuous fins. It also extends to methods of manufacturing such a panel.
  • the document FR-A-1 418 565 describes a panel of heat exchange tubes, of small spacing, and which are all joined together by fins.
  • the welds of the fins on the end tubes are also subjected to stresses due to the differences in temperature between tubes and to the weight of the tubes in the central part, leading to risks of cracking and leakage.
  • Document US-A-3 880 123 describes a panel of heat exchange tubes, of small spacing, joined together by short fin elements, with the exception of each of the tubes supported by a nearest collector the middle of the panel and the adjacent unsupported tube. The latter are joined by overlapping and superimposed S-shaped profile elements, the ends of which are welded to the adjacent tubes. Such a panel does not prevent accumulation between the tubes of soot deposits which are difficult to remove.
  • the present invention aims to provide a heat exchange panel with soot-laden gases, which is easy to clean off soot deposits, but is at the same time easy and mechanizable to manufacture and does not exhibit any brittleness of its solders.
  • the heat exchange panel according to the invention is characterized in that all of its tubes are spaced from each other by a pitch of little more than their outside diameter, and in that the extreme tubes connected directly to the structure of suspension are secured to each other and to the nearest adjacent tube by members of low lower than that of the upper loops of the panel, and are joined together and with the adjacent tube below the fastening members by fins.
  • two separate circuits of straight tubes with loop ends are formed separately, they are introduced into one another by assembling the straight sections of the tubes side by side, fins between these straight sections, there are between the end sections suspended from the rigid structure and the adjacent section, a little above the fins, vertical fastening elements, then these elements are welded with the adjacent tubes using '' a welding machine in translation along the tubes.
  • this panel sections of straight tubes are assembled side by side, fins are formed between these sections, there is between the end sections suspended from the rigid structure and the adjacent section, a little above fins, vertical fixing elements, these elements are welded with the adjacent tube sections using a welding machine in translation along these sections, then the connection loops are welded on their ends.
  • Figures 6, 7 and 8 respectively show sections along the axis VI-VI of Figure 1, according to three variants of constitution of the fins.
  • the heat exchange panel consists of two tubes 1, 2 close to each other, and whose convolutions are nested one inside the other.
  • the spacing of these tubes has been exaggerated for clarity. They are suspended by their inlet 1A and outlet 1B ends from fixed structures 3 and 4.
  • their pitch spacing of their axes
  • These tubes form loops 5, 6, 7, 8 at their lower part and loops 9, 10, 11 at their upper part.
  • Tubes 1 and 2 are interconnected over most of their length by a fin 12 .
  • the two end sections and the adjacent section are connected by means of fastening elements 14, 15, welded to the adjacent tubes according to generatrices.
  • fastening elements 14, 15, welded to the adjacent tubes according to generatrices are shown on a larger scale in FIGS. 2 and 3, corresponding to the detail II of FIG. 1.
  • the element 14 connects the end tube sections 21 and 22, and the element 15 the section 22 with the adjacent section 23 of the panel.
  • These panels can be double as shown in Figure 1, but they can be single, triple or quadruple.
  • the connecting fin elements 26, 27 stop a little below the elements 14, 15.
  • the upper zone of the fins has a slot such as 28, ending in a circular hole 29 in order to avoid a crack propagation initiation. In this way, the stresses due to differential expansion are transmitted by the parts 14, 15 and dissipate throughout the panel.
  • FIG. 4 shows a section through a horizontal plane in the upper part of the panel, above the level of the hollow securing elements 14, 15.
  • the sections of tubes 21, 22 and 23 are separated from each other, while the sections 23, 24, 30, and so on, are connected by a fin.
  • Figures 6, 7 and 8 show three variants of the constitution of the junction fin between the sections of tubes. They correspond to a section along the axis VI-VI of FIG. 1.
  • FIG. 6 represents a junction fin formed by vertical plates 34, 35, attached and welded on each side on the tubes 31, 32, 33 along weld lines such as 36, 37.
  • the tubes may already have their loops of end and have been placed one inside the other, or the end loops can be welded to the ends of the tube sections after fitting the fins; in this case the welding machine moves along the axes of the tubes.
  • FIG. 7 represents junction fins 38, 39 formed by depositing molten metal between the adjacent tube sections 31, 32, 33, by a fixed automatic machine in which the tubes pass. The end loops are subsequently welded to the ends of the tube sections.
  • FIG. 8 shows junction fins 40, 41 formed by welding 42, 43 of tubes 31, 32, 33 provided with ribs in a diametrical plane.
  • the welding of the ribs to each other is carried out by a stationary machine.
  • the end loops are welded later.
  • the heat exchange panel according to the invention applies more particularly to heat recovery boilers by incineration of black stationery liquor or household waste, but it is suitable in all cases where an exchange must be carried out of heat between a fluid to be heated or vaporized circulating inside the tubes and gases or vapors laden with solid dust circulating around them.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Paper (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (11)

1. Wärmetauschertafel mit nahe beieinanderliegenden senkrechten Rohren (1, 2), die an ihrem unteren und an ihrem oberen Teil zwischen einem Eingang (1A) und einem Ausgang (1 B), durch die sie an einer starren Struktur (3, 4) aufgehängt sind, Bögen (5 bis 8 und 9 bis 11) bilden, und die über ihre äußere Oberfläche mit rußbefrachteten Gasen in Kontakt stehen sollen, wobei die Rohre des zentralen Bereichs untereinander durch durchgehende Rippen (25) verbunden sind, dadurch gekennzeichnet, daß alle Rohre einen Achsabstand zueinander aufweisen, der etwas größer ist als ihr äußerer Durchmesser, und daß die äußersten Rohre, die direkt mit der Hängestruktur verbunden sind, untereinander und an dem nächstliegenden Rohr durch Organe (14, 15) geringer Höhe befestigt sind, die auf beiden Seiten auf die benachbarten Rohre (21, 22, 23) in einer Höhe unterhalb der oberen Bögen der Tafel aufgeschweißt und untereinander und mit dem benachbarten Rohr unterhalb der Befestigungsorgane durch Rippen (26) verbunden sind.
2. Tafel nach Anspruch 1, dadurch gekennzeichnet, daß die durchgehenden Rippen (34, 35, Fig. 6) angesetzte senkrechte Elemente sind, die auf beiden Seiten auf die benachbarten Rohre aufgeschweißt sind.
3. Tafel nach Anspruch 1, dadurch gekennzeichnet, daß die durchgehenden Rippen (38, 39, Fig. 7) senkrechte Elemente sind, die durch direkte Metallfusion zwischen zwei benachbarten Rohren angebracht werden.
4. Tafel nach Anspruch 1, dadurch gekennzeichnet, daß die durchgehenden Rippen aus der Schweißverbindungen von Leisten (40, 41 Fig. 8) gegenüber den benachbarten Rohren bestehen.
5. Tafel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Abschnitt der Rippen zwischen den äußersten Rohren und dem nächstliegenden Rohr in dem den Befestigungsorganen nächstliegenden Bereich geschlitzt ist (28, Fig. 2).
6. Tafel nach Anspruch 5, dadurch gekennzeichnet, daß der Boden der Schlitze in diesem Bereich von einem kreisförmigen Loch (29) gebildet wird, dessen Durchmesser größer ist als die Breite des entsprechenden Schlitzes.
7. Verfahren zur Herstellung einer Wärmetauschertafel nach Anspruch 1, dadurch gekennzeichnet, daß man getrennt zwei oder mehrere gerade Rohrkreise mit bogenförmigem Ende bildet, daß man sie ineinander einführt, indem man die geraden Rohrabschnitte nebeneinander anordnet, daß man zwischen die an der starren Struktur aufgehängten äußersten Abschnitte und den benachbarten Abschnitt etwas oberhalb der Rippen senkrechte Befestigungselemente anbringt, und dann diese Elemente mit den benachbarten Rohren mithilfe einer Schweißmaschine in Verschiebung entlang der Rohre verschweißt.
8. Verfahren zur Herstellung einer Wärmetauschertafel nach Anspruch 1, dadurch gekennzeichnet, daß man man gerade Rohrabschnitte nebeneinander anordnet, zwischen diesen Abschnitten Rippen bildet, zwischen den an der starren Struktur aufgehängten äußersten Abschnitten und dem benachbarten Abschnitt senkrechte Befestigungselemente anbringt, diese Elemente mit den benachbarten Rohren mithilfe einer Schweidmaschine in Verschiebung entlang dieser Abschnitte verschweißt, dann auf ihre Enden Anschlußbögen schweißt.
9. Verfahren nach den Ansprüchen 7 oder 8, dadurch gekennzeichnet, daß man die Rippen formt, indem man zwischen den geraden Rohren senkrechte Elemente anordnet, dann diese Elemente auf beiden Seiten auf die benachbarten Rohre aufschweißt.
10. Verfahren nach den Ansprüchen 7 oder 8, dadurch gekennzeichnet, daß man die Rippen dadurch formt daß man sie durch direkte Metallfusion zwischen den Rohren aufbringt.
11. Verfahren nach den Ansprüchen 7 oder 8, dadurch gekennzeichnet, daß man nebeneinander gerade Rohrabschnitte anordnet, die in einer Umfangsebene mit Leisten versehen sind, und diese Leisten miteinander verschweißt.
EP85106871A 1984-06-05 1985-06-04 Wärmetauschplatte aus senkrechten Rohren, für Rückgewinnungsdampferzeuger, wie Schwarzlikördampferzeuger oder Stadtmüllverbrennungsofen, und Herstellungsverfahren Expired EP0166989B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106871T ATE30636T1 (de) 1984-06-05 1985-06-04 Waermetauschplatte aus senkrechten rohren, fuer rueckgewinnungsdampferzeuger, wie schwarzlikoerdampferzeuger oder stadtmuellverbrennungsofen, und herstellungsverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8408787 1984-06-05
FR8408787A FR2565338B1 (fr) 1984-06-05 1984-06-05 Panneau d'echange de chaleur a tubes verticaux, pour chaudieres de recuperation telles que chaudieres a liqueur noire, ou sur fours d'incineration d'ordures menageres, et procedes pour sa fabrication

Publications (2)

Publication Number Publication Date
EP0166989A1 EP0166989A1 (de) 1986-01-08
EP0166989B1 true EP0166989B1 (de) 1987-11-04

Family

ID=9304716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106871A Expired EP0166989B1 (de) 1984-06-05 1985-06-04 Wärmetauschplatte aus senkrechten Rohren, für Rückgewinnungsdampferzeuger, wie Schwarzlikördampferzeuger oder Stadtmüllverbrennungsofen, und Herstellungsverfahren

Country Status (9)

Country Link
US (1) US4638857A (de)
EP (1) EP0166989B1 (de)
JP (1) JPH0617722B2 (de)
KR (1) KR940001783B1 (de)
AT (1) ATE30636T1 (de)
DE (1) DE3560925D1 (de)
FR (1) FR2565338B1 (de)
IN (1) IN162680B (de)
ZA (1) ZA854222B (de)

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DE3935871A1 (de) * 1989-10-27 1991-05-02 Gutehoffnungshuette Man Zwaengungsfreie aufhaengung von waermetauscherbuendeln mit hoher temperaturbeaufschlagung
DE4118065C2 (de) * 1991-06-01 1994-09-01 Krupp Widia Gmbh Vieleckiger oder runder Schneideinsatz
JP2008116150A (ja) * 2006-11-06 2008-05-22 Dai Ichi High Frequency Co Ltd ボイラ水壁用パネル
JP5622557B2 (ja) * 2010-12-17 2014-11-12 三菱重工業株式会社 ボイラ側壁の製造方法及びボイラ側壁用フィン
CN104204664B (zh) * 2012-01-17 2016-12-14 通用电器技术有限公司 用于连接单程水平蒸发器的区段的方法及设备
MX348680B (es) 2012-01-17 2017-06-23 General Electric Technology Gmbh Sistema de arranque para un evaporador horizontal directo.
US9777963B2 (en) * 2014-06-30 2017-10-03 General Electric Company Method and system for radial tubular heat exchangers
US10006369B2 (en) 2014-06-30 2018-06-26 General Electric Company Method and system for radial tubular duct heat exchangers
US9835380B2 (en) 2015-03-13 2017-12-05 General Electric Company Tube in cross-flow conduit heat exchanger
US10378835B2 (en) 2016-03-25 2019-08-13 Unison Industries, Llc Heat exchanger with non-orthogonal perforations

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Also Published As

Publication number Publication date
US4638857A (en) 1987-01-27
ATE30636T1 (de) 1987-11-15
JPH0617722B2 (ja) 1994-03-09
KR860000530A (ko) 1986-01-29
JPS613902A (ja) 1986-01-09
DE3560925D1 (en) 1987-12-10
FR2565338A1 (fr) 1985-12-06
ZA854222B (en) 1986-01-29
KR940001783B1 (ko) 1994-03-05
IN162680B (de) 1988-06-25
FR2565338B1 (fr) 1988-10-07
EP0166989A1 (de) 1986-01-08

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