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EP0219605B2 - Tube bundle exchanger - Google Patents
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EP0219605B2 - Tube bundle exchanger - Google Patents

Tube bundle exchanger

Info

Publication number
EP0219605B2
EP0219605B2 EP86107768A EP86107768A EP0219605B2 EP 0219605 B2 EP0219605 B2 EP 0219605B2 EP 86107768 A EP86107768 A EP 86107768A EP 86107768 A EP86107768 A EP 86107768A EP 0219605 B2 EP0219605 B2 EP 0219605B2
Authority
EP
European Patent Office
Prior art keywords
plate
carrier
tube
annular chamber
shell
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 - Lifetime
Application number
EP86107768A
Other languages
German (de)
French (fr)
Other versions
EP0219605A1 (en
EP0219605B1 (en
Inventor
Wolfgang Kehrer
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.)
Borsig GmbH
Original Assignee
Borsig GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6281244&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0219605(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Borsig GmbH filed Critical Borsig GmbH
Publication of EP0219605A1 publication Critical patent/EP0219605A1/en
Application granted granted Critical
Publication of EP0219605B1 publication Critical patent/EP0219605B1/en
Publication of EP0219605B2 publication Critical patent/EP0219605B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F28F9/02—Header boxes; End plates
    • F28F9/0229—Double end plates; Single end plates with hollow spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1884—Hot gas heating tube boilers with one or more heating tubes
    • 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
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits

Definitions

  • the invention relates to a Shell and tube heat exchangers with the features of the preamble of claim 1.
  • Water is used as the cooling medium between the heat exchanger and one Evaporation drum circulates and at the same time evaporates.
  • the invention is based, which Support the thin tube plate so too shape that settling in the water contained particles on the thin tube plate is prevented.
  • the support plate of the invention Heat exchanger fulfills a double function, by both supporting the thin Pipe plate as well as guiding the water serves.
  • The are on the fingers of forces coming as the thin tube plate Tensile forces directed into the jacket. Since the Bulk of the water through the Passage opening into the heat exchanger, becomes a water channel across the entire Tube plate reached at high speed, causing particles to settle on the Pipe plate is prevented.
  • the heat exchanger shown is from standing construction and serves in particular for Cooling fission gases with the help of evaporating water. It consists of one Pipe bundle made up of individual pipes 1, which by the flows through to be cooled gas and by one Coat 2 are surrounded. The tubes 1 are in two Pipe plates 3, 4 held to which one Connect gas inlet 5 and a gas outlet 6.
  • the tube plate 3 on the gas inlet side is in the Comparison to the tube plate 4 on the Gas outlet side is thin.
  • the thin one Pipe plate 3 is on the gas inlet opposite side by a support plate 7 supported, forming a Interspace 8 at a distance from the thin Pipe plate 3 is arranged.
  • Support fingers 9 distributed over the cross section provided that integrally formed on the support plate 7 are.
  • the tubes 1 penetrate under each Formation of an annular gap 10 loose the support plate 7th
  • the thin tube plate 3 is with an outer Support jacket 12 and the support plate 7 is with a inner support jacket 11 connected.
  • the Support shells 11, 12 are Y-shaped Ring 13 connected to each other, which in turn is welded to the jacket 2.
  • the about the Y-shaped ring 13 connected together Support jacket 11, 12 delimit an annular chamber 14, which serves to supply water.
  • the outer support jacket 12 is with a Supply pipe 15 provided for the water.
  • a Supply pipe 15 provided for the water.
  • the inner support jacket 11 On the feed pipe 15 opposite side of the annular chamber 14 the inner support jacket 11 with a Passage opening 16 provided. Between the Feed pipe 15 and the passage opening 16 is the annular chamber 14 by two radial Partitions 17, the entire cross section fill the annular chamber 14 in two Sub-chambers divided.
  • baffles 18 provided the support plate 7 on part of its circumference enclose.
  • the baffles 18 are on the thin tube plate 3 and cover one Part of the inlet cross section of the Gap 8 between the support plate 7 and the thin tube plate 3.
  • the water passes through the feed pipe 15 in the annular chamber 14 and flows with the space 8 at high speed between the thin tube plate 3 and the Support plate 7. This occurs a small amount of Water through the annular gaps 10 in the Interior of the heat exchanger.
  • the Most of the water flows through the Passage opening 16 into the heat exchanger and cools the in with partial evaporation gas flowing into the pipes 1.
  • the evaporating Water is through an outlet 19 in Sheath 2 removed and does not flow over one riser shown in an evaporation drum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Die Erfindung betrifft einen Rohrbündelwärmetauscher mit den Merkmalen des Oberbegriffes des Patentanspruches 1. The invention relates to a Shell and tube heat exchangers with the features of the preamble of claim 1.

Bei einem bekannten Wärmetauscher (DE-A-19 53 628) stützt sich die dünne Rohrplatte über die Enden der Bündelrohre auf der Tragplatte ab, was eine Unsicherheit der Konstruktion zur Folge hat. Die Rohrenden sind unter Bildung eines Ringspaltes von Mantelrohren umgeben, die bis in die Nähe der dünnen Rohrplatte reichen. Das in die Eintrittskammer zwischen der dünnen Rohrplatte und der Tragplatte eingespeiste Kühlwasser strömt zunächst an der dünnen Rohrplatte entlang und tritt dann durch die Ringspalten in den Innenraum des Wärmetauschers ein. In a known heat exchanger (DE-A-19 53 628) the thin tube plate is supported over the Ends of the bundle tubes on the support plate, which results in uncertainty in the design Has. The pipe ends are forming one Annular gap surrounded by jacket tubes that up reach near the thin tube plate. The into the entry chamber between the thin Pipe plate and the support plate fed Cooling water first flows on the thin one Along the tube plate and then passes through the Annular gaps in the interior of the Heat exchanger.

Bei einem anderen bekannten Wärmetauscher (DE-C-12 94 981) ist die dünne Rohrplatte durch Tragbleche versteift. Diese Tragbleche liegen mit Abstand von der Rohrplatte und sind durch Anker mit der Rohrplatte fest verbunden Dabei sind Maßnahmen vorgesehen, durch die das Kühlmedium an die dünne Rohrplatte herangeführt wird. In another known heat exchanger (DE-C-12 94 981) is the thin tube plate through Support plates stiffened. These support plates are included Distance from the tube plate and are through anchors are firmly connected to the tube plate Measures provided by which the Coolant to the thin tube plate is introduced.

Als Kühlmedium wird Wasser verwendet, das zwischen dem Wärmetauscher und einer Ausdampftrommel zirkuliert und dabei verdampft. Dieses Wasser, das stets Magnetit in feiner Form enthält sowie andere feste Verunreinigungen enthalten kann, wird bei den beiden Wärmetauschern von einem Außenbereich zur Mitte geführt. Da das Wasser frühzeitig im Außenbereich aufwärts abströmt, nimmt die Strömungsgeschwindigkeit des Wassers zur Mitte hin ab. Hierdurch können sich zur Mitte des Wärmetauschers niedrigere Wassergeschwindigkeiten ergeben, die ein Absetzen der mitgeführten Partikel auf der dünnen Rohrplatte an der Gaseintrittsseite begünstigen. Im Fall größerer Ablagerungen entstehen Schäden an der Rohrplatte durch Überhitzung. Water is used as the cooling medium between the heat exchanger and one Evaporation drum circulates and at the same time evaporates. This water that is always magnetite in contains fine form as well as other solid May contain impurities two heat exchangers from one Outside led to the middle. Because the water flows upwards early in the outdoor area, takes the flow velocity of the Water towards the middle. This can lower towards the center of the heat exchanger Water velocities result that a The entrained particles are deposited on the thin tube plate on the gas inlet side favor. In the case of larger deposits damage to the pipe plate Overheating.

Der Erfindung liegt die Aufgabe zugrunde, die Abstützung der dünnen Rohrplatte so zu gestalten, daß ein Absetzen von im Wasser enthaltenen Partikeln auf der dünnen Rohrplatte verhindert wird. The invention is based, which Support the thin tube plate so too shape that settling in the water contained particles on the thin tube plate is prevented.

Diese Aufgabe wird bei einem gattungsgemäßen Wärmetauscher durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Eine vorteilhatte Ausgestaltung der Erfindung ist in dem Unteranspruch angegeben. This task is done with a Generic heat exchanger through the characteristic features of the Claim 1 solved. Had an advantage Embodiment of the invention is in the Subclaim specified.

Die Tragplatte des erfindungsgemäßen Wärmetauschers erfüllt eine Doppelfunktion, indem sie sowohl der Abstützung der dünnen Rohrplatte als auch der Führung des Wassers dient. Dabei werden die über die Tragfinger von der dünnen Rohrplatte kommenden Kräfte als Zugkräfte in den Mantel geleitet. Da die Hauptmenge des Wassers durch die Durchtrittsöffnung in den Wärmetauscher eintritt, wird eine Wasserführung quer über die gesamte Rohrplatte mit hoher Geschwindigkeit erreicht, wodurch ein Absetzen von Partikeln auf der Rohrplatte verhindert wird. The support plate of the invention Heat exchanger fulfills a double function, by both supporting the thin Pipe plate as well as guiding the water serves. The are on the fingers of forces coming as the thin tube plate Tensile forces directed into the jacket. Since the Bulk of the water through the Passage opening into the heat exchanger, becomes a water channel across the entire Tube plate reached at high speed, causing particles to settle on the Pipe plate is prevented.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:

  • Fig. 1 den Längsschnitt durch einen Wärmetauscher gemäß der Erfindung und
  • Fig. 2 den Schnitt 11-11 nach Fig. 1.
    • An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it:
  • Fig. 1 shows the longitudinal section through a heat exchanger according to the invention and
  • 2 shows the section 11-11 of FIG. 1st

    • Der dargestellte Wärmetauscher ist von stehender Bauart und dient insbesondere zum Kühlen von Spaltgasen mit Hilfe von verdampfendem Wasser. Er besteht aus einem Rohrbündel aus einzelnen Rohren 1, die von dem zu kühlenden Gas durchströmt und von einem Mantel 2 umgeben sind. Die Rohre 1 sind in zwei Rohrplatten 3, 4 gehalten, an die sich ein Gaseintritt 5 und ein Gasaustritt 6 anschließen. The heat exchanger shown is from standing construction and serves in particular for Cooling fission gases with the help of evaporating water. It consists of one Pipe bundle made up of individual pipes 1, which by the flows through to be cooled gas and by one Coat 2 are surrounded. The tubes 1 are in two Pipe plates 3, 4 held to which one Connect gas inlet 5 and a gas outlet 6.

    Die Rohrplatte 3 auf der Gaseintrittsseite ist im Vergleich zu der Rohrplatte 4 auf der Gasaustrittsseite dünn ausgebildet. Die dünne Rohrplatte 3 ist auf der dem Gaseintritt abgewandten Seite durch eine Tragplatte 7 abgestützt, die unter Bildung eines Zwischenraumes 8 mit Abstand von der dünnen Rohrplatte 3 angeordnet ist. Zwischen der dünnen Rohrplatte 3 und der Tragplatte 7 sind über den Querschnitt verteilt Tragfinger 9 vorgesehen, die an die Tragplatte 7 angeformt sind. Die Rohre 1 durchdringen jeweils unter Bildung einer Ringspalte 10 lose die Tragplatte 7. The tube plate 3 on the gas inlet side is in the Comparison to the tube plate 4 on the Gas outlet side is thin. The thin one Pipe plate 3 is on the gas inlet opposite side by a support plate 7 supported, forming a Interspace 8 at a distance from the thin Pipe plate 3 is arranged. Between the thin tube plate 3 and the support plate 7 are Support fingers 9 distributed over the cross section provided that integrally formed on the support plate 7 are. The tubes 1 penetrate under each Formation of an annular gap 10 loose the support plate 7th

    Die dünne Rohrplatte 3 ist mit einem äußeren Tragmantel 12 und die Tragplatte 7 ist mit einem inneren Tragmantel 11 verbunden. Die Tragmäntel 11, 12 sind über einen Y-förmigen Ring 13 miteinander verbunden, der seinerseits an den Mantel 2 angeschweißt ist. Die über den Y-förmigen Ring 13 miteinander verbundenen Tragmantel 11, 12 umgrenzen eine Ringkammer 14, die der Zuführung von Wasser dient. The thin tube plate 3 is with an outer Support jacket 12 and the support plate 7 is with a inner support jacket 11 connected. The Support shells 11, 12 are Y-shaped Ring 13 connected to each other, which in turn is welded to the jacket 2. The about the Y-shaped ring 13 connected together Support jacket 11, 12 delimit an annular chamber 14, which serves to supply water.

    Der äußere Tragmantel 12 ist mit einem Zuführungsstutzen 15 für das Wasser versehen. Auf der dem Zuführungsstutzen 15 gegenüberliegenden Seite der Ringkammer 14 ist der innere Tragmantel 11 mit einer Durchtrittsöffnung 16 versehen. Zwischen dem Zuführungsstutzen 15 und der Durchtrittsöffnung 16 ist die Ringkammer 14 durch zwei radiale Trennbleche 17, die den gesamten Querschnitt der Ringkammer 14 ausfüllen, in zwei Teilkammern aufgeteilt. The outer support jacket 12 is with a Supply pipe 15 provided for the water. On the feed pipe 15 opposite side of the annular chamber 14 the inner support jacket 11 with a Passage opening 16 provided. Between the Feed pipe 15 and the passage opening 16 is the annular chamber 14 by two radial Partitions 17, the entire cross section fill the annular chamber 14 in two Sub-chambers divided.

    In der Ringkammer 14 sind zu beiden Seiten der Trennbleche 17 Leitbleche 18 vorgesehen, die die Tragplatte 7 auf einem Teil ihres Umfanges umschließen. Die Leitbleche 18 stehen auf der dünnen Rohrplatte 3 auf und überdecken einen Teil des Eintrittsquerschnittes des Zwischenraumes 8 zwischen der Tragplatte 7 und der dünnen Rohrplatte 3. In the annular chamber 14 are on both sides of the dividers 17 baffles 18 provided the support plate 7 on part of its circumference enclose. The baffles 18 are on the thin tube plate 3 and cover one Part of the inlet cross section of the Gap 8 between the support plate 7 and the thin tube plate 3.

    Wie in der Zeichnung durch Pfeile angedeutet, tritt das Wasser durch den Zuführungsstutzen 15 in die Ringkammer 14 ein und durchströmt mit hoher Geschwindigkeit den Zwischenraum 8 zwischen der dünnen Rohrplatte 3 und der Tragplatte 7. Dabei tritt eine geringe Menge des Wassers durch die Ringspalten 10 in den Innenraum des Wärmetauschers ein. Die Hauptmenge des Wassers strömt durch die Durchtriffsöffnung 16 in den Wärmetauscher ein und kühlt unter teilweiser Verdampfung das in den Rohren 1 strömende Gas. Das verdampfende Wasser wird durch einen Austrittsstutzen 19 im Mantel 2 abgeführt und strömt über eine nicht gezeigte Steigleitung in eine Ausdampftrommel. As indicated by arrows in the drawing, the water passes through the feed pipe 15 in the annular chamber 14 and flows with the space 8 at high speed between the thin tube plate 3 and the Support plate 7. This occurs a small amount of   Water through the annular gaps 10 in the Interior of the heat exchanger. The Most of the water flows through the Passage opening 16 into the heat exchanger and cools the in with partial evaporation gas flowing into the pipes 1. The evaporating Water is through an outlet 19 in Sheath 2 removed and does not flow over one riser shown in an evaporation drum.

    Claims (2)

    1. Tube nest heat exchanger with tubes (1), which are held at both ends in tube plates (3, 4), for the heat exchange between substances of great pressure difference, of which the gas flowing through the tubes (1) displays a high entry temperature, wherein the one tube plate (3) is constructed to be relatively thin in relation to the other tube plate (4) and is supported on a carrier plate (7), which subject to formation of an intermediate space (8) is arranged at a spacing from the thin tube plate (3) and connected with a shell (2) surrounding the tube nest, wherein the tubes (1) on passage through the carrier plate (7) are surrounded by an annular gap (10), and with a feed nipple (15) for the cooling water and an exit nipple (19) for the evaporated water, characterised thereby, that carrier fingers (9) are provided between the thin tube plate (3) and the carrier plate (7), that the carrier plate (7) is connected with an inner carrier shell (11) and the thin tube plate (3) is connected with an outer carrier shell (12), which shells are connected with the shell (2) surrounding the tube nest and bound an annular chamber (14), that the outer carrier shell (12) is connected with the feed nipple (15) for the cooling water and the inner carrier shell (11) is provided on that side of the annular chamber (14), which is remote from the feed nipple (15), with a passage opening (16) as connection to the intermediate space (8) and that the annular chamber (14) is crossed between the feed nipple (15) and the passage opening (16) by two metal separating plates (17) covering the cross-section of the annular chamber (14).
    2. Tube nest heat exchanger according to claim 1, characterised thereby, that metal guide plates (18), which enclose the carrier plate (7) and cover a part of the entry cross-section of the intermediate space (8) between the carrier plate (7) and the thin tube plate (3), are arranged in the annular chamber (14) at both sides of the metal separating plates (17).
    EP86107768A 1985-09-18 1986-06-06 Tube bundle exchanger Expired - Lifetime EP0219605B2 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE3533219 1985-09-18
    DE3533219A DE3533219C1 (en) 1985-09-18 1985-09-18 Tube bundle heat exchanger

    Publications (3)

    Publication Number Publication Date
    EP0219605A1 EP0219605A1 (en) 1987-04-29
    EP0219605B1 EP0219605B1 (en) 1988-06-08
    EP0219605B2 true EP0219605B2 (en) 1991-05-02

    Family

    ID=6281244

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP86107768A Expired - Lifetime EP0219605B2 (en) 1985-09-18 1986-06-06 Tube bundle exchanger

    Country Status (5)

    Country Link
    US (1) US4700773A (en)
    EP (1) EP0219605B2 (en)
    JP (1) JPH0781793B2 (en)
    DE (2) DE3533219C1 (en)
    SU (1) SU1443814A3 (en)

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    US11260953B2 (en) 2019-11-15 2022-03-01 General Electric Company System and method for cooling a leading edge of a high speed vehicle
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    US11745847B2 (en) 2020-12-08 2023-09-05 General Electric Company System and method for cooling a leading edge of a high speed vehicle
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    Also Published As

    Publication number Publication date
    EP0219605A1 (en) 1987-04-29
    SU1443814A3 (en) 1988-12-07
    DE3660297D1 (en) 1988-07-14
    US4700773A (en) 1987-10-20
    JPH0781793B2 (en) 1995-09-06
    EP0219605B1 (en) 1988-06-08
    JPS6269091A (en) 1987-03-30
    DE3533219C1 (en) 1986-11-13

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