DE4344409A1 - Heat exchanger tubular element with throttle disc - Google Patents

Heat exchanger tubular element with throttle disc

Info

Publication number
DE4344409A1
DE4344409A1 DE19934344409 DE4344409A DE4344409A1 DE 4344409 A1 DE4344409 A1 DE 4344409A1 DE 19934344409 DE19934344409 DE 19934344409 DE 4344409 A DE4344409 A DE 4344409A DE 4344409 A1 DE4344409 A1 DE 4344409A1
Authority
DE
Germany
Prior art keywords
tube
flag
relief
water side
tubes
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
DE19934344409
Other languages
German (de)
Other versions
DE4344409C2 (en
Inventor
Manfred Virkus
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.)
Erk Eckrohrkessel GmbH
Original Assignee
Erk Eckrohrkessel 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
Application filed by Erk Eckrohrkessel GmbH filed Critical Erk Eckrohrkessel GmbH
Priority to DE19934344409 priority Critical patent/DE4344409C2/en
Publication of DE4344409A1 publication Critical patent/DE4344409A1/en
Application granted granted Critical
Publication of DE4344409C2 publication Critical patent/DE4344409C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
    • F22B21/30—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent in U-loop form
    • F22B21/32—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent in U-loop form disposed horizontally in abutting connection with upright headers or rising water mains
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

In a steam or hot water generator coolant streams are parallel U- or W-shaped tubes, forming a finned heating face. On the water side they are coupled to a fin holding tube. To relieve the outlet cross-section of the fin holding tube, the water side of the latter is coupled to a header via a relief tube. In the fin holding tube, directly above the relief tube coupling point, is fitted a throttle disc for dividing the mass stream from the fin tubes.

Description

Die Erfindung betrifft einen Dampferzeuger oder Heißwasserer­ zeuger mit einer Berührungsheizfläche nach dem Oberbegriff des Anspruches 1.The invention relates to a steam generator or hot water with a touch heating surface according to the preamble of Claim 1.

Dampf- und Heißwasserkessel haben Strahlungs- und Berührungs­ heizflächen. Für die Ausbildung der Berührungsheizflächen gibt es mehrere Möglichkeiten. Eine dieser Möglichkeiten ist die Fah­ nenheizfläche. Diese ist aus der DBP 111 98 73 bekannt und hat sich hundertfach bewährt.Steam and hot water boilers have radiation and contact heating surfaces. For the formation of the touch heating surfaces there there are several options. One of these options is the Fah internal heating surface. This is known from DBP 111 98 73 and has proven itself hundreds of times.

Eine wesentliche Voraussetzung für das Funktionieren dieser Fah­ nenheizfläche ist, daß der Ableitungsquerschnitt des Fahnenhal­ terohres, welches gleichzeitig Seitenwandrohr ist, groß genug ist, um das erzeugte Dampf-Wasser-Gemisch abzuführen. Bei grö­ ßer werdenden Kesseln reicht dieser Ableitungsquerschnitt nicht mehr aus; es wurden sogenannte separate Rücklaufrohre vorgese­ hen, wie sie aus der DBP 1501678 bekannt sind. Diese Rücklauf­ rohre haben jedoch den Nachteil, daß sie, da sie über die ge­ samte Länge des Fahnenhalterohres/Seitenwandrohres von der An­ schlußstelle am Fahnenrohr nach unten in die Nähe eines Vertei­ lerrohres geführt werden müssen, einige Schwierigkeiten bei der Absteifung dieser langen Seitenwandrohre durch Horizontalbandan­ gen bereiten.An essential prerequisite for the functioning of this vehicle nenheizfläche is that the lead cross section of the Fahnenhal terohres, which is also sidewall tube, large enough is to discharge the generated steam-water mixture. With large This drain cross-section is not sufficient for boilers that are getting bigger more out; So-called separate return pipes were provided hen as they are known from DBP 1501678. This rewind However, pipes have the disadvantage that, since they have the ge entire length of the flag holder tube / side wall tube from the An closing point on the flagpole down near a distribution lerrohres, some difficulties with the Bracing of these long side wall tubes by horizontal band prepare.

Um diese Schwierigkeiten zu vermeiden, hat man versucht, diese nach unten geführten separaten Rücklaufrohre durch separate Ent­ lastungsrohre zu ersetzen. Diese separaten Entlastungsrohre sollten, ebenfalls wie die separaten Rücklaufrohre, an der dem Rauchgasstrom abgekehrten Seite des Fahnenhalterohres angebracht und mit dem oberen Sammlerrohr verbunden werden. Durch dieses Entlastungsrohr sollte der Ableitungsquerschnitt des Fahnenhalte­ rohres, um den Strömungsquerschnitt des Entlastungsrohres vergrö­ ßert werden.In order to avoid these difficulties, one has tried to overcome them separate return pipes led downwards by separate ent to replace load tubes. These separate relief pipes should, like the separate return pipes, on the Flue gas flow facing away from the flag holder tube and be connected to the upper header pipe. Because of this Relief tube should be the lead cross section of the flag holder tube to enlarge the flow cross-section of the relief tube be eats.

Der gewünschte Erfolg trat nicht ein. Strömungsmodellversuche zeigten, daß das Entlastungsrohr nicht durchflossen wurde. Es stellte sich vielmehr ein geringerer Massenfluß in den Fah­ nenrohren ein, der nur so groß war, daß er durch das Fahnenhalterohr in einen Hauptsammler abgeführt werden konnte.The desired success did not materialize. Flow model experiments showed that the relief tube was not flowed through. It rather there was a lower mass flow in the vehicle a pipe that was only so big that it Flag holder tube could be discharged into a main collector.

Aufgabe der Erfindung ist es, dieses Entlastungsrohr in der Weise wirksam werden zu lassen, daß es den Abströmungsquer­ schnitt des Fahnenhalterohres vergrößert. Diese Aufgabe wird ge­ mäß der Erfindung durch das kennzeichnende Merkmal des Anspru­ ches 1 gelöst.The object of the invention is this relief tube in the Way to take effect that it is the outflow cross Cut of the flag holder tube enlarged. This task is ge according to the invention by the characterizing feature of claim ches 1 solved.

Der mit der Erfindung erzielte Vorteil besteht darin, daß bei thermisch stark belasteten Fahnenheizflächen, durch deren Rohre ein hoher Massenfluß zu Kühlung des Rohrmaterials erforderlich ist, dieser Massenfluß u. a. dadurch ermöglicht wird, daß der Strömungswiderstand des Ableitungsquerschnittes des Fahnenhalte­ rohres durch die Aufteilung des Massenflusses auf das Fahnen­ halterohr und ein Entlastungsrohr vermindert wird. Die Zuordnung des abzuleitenden Massenstroms in dieses Entlastungsrohr erfolgt über eine zusätzliche Drosselscheibe im Fahnenhalterohr. The advantage achieved by the invention is that at thermally heavily loaded flag heating surfaces through their pipes a high mass flow is required to cool the pipe material is this mass flow u. a. is made possible in that the Flow resistance of the lead cross-section of the flag holder tube by dividing the mass flow on the flags Holding tube and a relief tube is reduced. The assignment of the mass flow to be discharged into this relief pipe via an additional throttle disc in the flag holder tube.  

Die Anordnung dieser Drosselscheibe im Fahnenhalterohr im Ver­ hältnis zu den Anschlüssen der Fahnenrohre an das Fahnehalterohr erfolgt aufgrund einer Berechnung der Strömungswiderstände.The arrangement of this throttle disc in the flag holder tube in Ver Relationship to the connections of the flagpoles to the flag holder tube is based on a calculation of the flow resistances.

Die Ausführung der Erfindung ist in der Fig. 1 gezeigt. An das Fahnenhalterohr 1 ist in bekannter Weise die Fahnenheizfläche 2 wasserseitig angeschlossen. Dieses Fahnenhalterohr 1 ist mit ei­ nem Sammelrohr 3 wasserseitig verbunden. Zur wasserumlaufseiti­ gen Entlastung des Strömungsquerschnittes des Fahnenhalterohres 1 an der Stelle 4 - Verbindung mit dem Sammelrohr 3 - ist an ei­ ner, rechnerisch zu ermittelnden, Stelle an der unbeheizten Seite des Fahnenhalterohres 1 ein Entlastungsrohr 5 zum Sammel­ rohr 3 angebracht. Dieses Entlastungsrohr 5 stellt eine wasser­ seitige Verbindung zwischen dem Fahnenhalterohr 1 und dem Sam­ melrohr 3 her. Um den Massenfluß durch dieses Entlastungsrohr 5 zu gewährleisten, ist im Fahnenhalterohr 1 direkt über dem An­ schluß des Entlastungsrohres 5 am Fahnenhalterohr 1 eine Dros­ selscheibe 6 angebracht.The embodiment of the invention is shown in FIG. 1. To the flag holding tube 1, the Fahnenheizfläche 2 is connected on the water side in a known manner. This flag holder tube 1 is connected to a collecting tube 3 on the water side. To wasserumlaufseiti gen release the flow cross section of the flag holding tube 1 at the position 4 - connection to the manifold 3 - point is to ei ner, calculated to be determined, on the unheated side of the flags holding tube 1, a relief tube 5 pipe for collecting 3 attached. This relief tube 5 creates a water-side connection between the flag holder tube 1 and the Sam melrohr 3 . In order to ensure the mass flow through this discharge pipe 5, is in the flag holding tube 1 directly over the circuit to the discharge pipe 5 at the lugs holding tube 1 is a Dros selscheibe 6 attached.

Claims (1)

Mehrere, im Kühlmittelstrom eines Dampf- oder Heißwassererzeu­ gers parallel geschaltete U-förmig oder W-förmig gebogene Rohre sind in bekannter Weise zu einer Fahnenheizfläche ausgebildet und mit einem Fahnenhalterohr wasserseitig verbunden. Zur Entla­ stung des Ableitungsquerschnittes des Fahnenhalterohres ist das Fahnenhalterohr wasserseitig über ein Entlastungsrohr mit einem Sammler verbunden. Die Erfindung ist dadurch gekennzeichnet, daß im Fahnenhalterohr, unmittelbar über der Anschlußstelle des Ent­ lastungsrohres, eine Drosselscheibe zur Teilung des Massenstro­ mes, der aus den Fahnenrohren kommt, angebracht ist.Several, in the coolant stream of a steam or hot water generator connected in parallel U-shaped or W-shaped tubes are formed in a known manner to a flag heating surface and connected to a flag-holding tube on the water side. To relieve the discharge cross-section of the flag holder tube, the flag holder tube is connected on the water side to a collector via a relief tube. The invention is characterized in that in the flag holder tube, directly above the junction of the Ent relief tube, a throttle plate for dividing the Massenstro mes, which comes from the flag tubes, is attached.
DE19934344409 1993-12-24 1993-12-24 Steam or hot water generators with flag heating surfaces arranged in the flue gas stream Expired - Fee Related DE4344409C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934344409 DE4344409C2 (en) 1993-12-24 1993-12-24 Steam or hot water generators with flag heating surfaces arranged in the flue gas stream

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934344409 DE4344409C2 (en) 1993-12-24 1993-12-24 Steam or hot water generators with flag heating surfaces arranged in the flue gas stream

Publications (2)

Publication Number Publication Date
DE4344409A1 true DE4344409A1 (en) 1995-06-29
DE4344409C2 DE4344409C2 (en) 2002-10-31

Family

ID=6506164

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934344409 Expired - Fee Related DE4344409C2 (en) 1993-12-24 1993-12-24 Steam or hot water generators with flag heating surfaces arranged in the flue gas stream

Country Status (1)

Country Link
DE (1) DE4344409C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222974A1 (en) * 2002-05-23 2003-12-11 Enginon Ag Heat exchanger used as a steam superheating unit in a steam engine comprises fluid flow channels forming groups of looped/curved bands having bends with an axis of curvature running perpendicular to a hot gas stream
DE102010038978B4 (en) * 2009-11-06 2017-02-09 Mitsubishi Hitachi Power Systems Europe Gmbh deHeizflächenanordnung a steam generator or a heat exchanger and a such a Heizflächenanordnung comprehensive and / or heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222974A1 (en) * 2002-05-23 2003-12-11 Enginon Ag Heat exchanger used as a steam superheating unit in a steam engine comprises fluid flow channels forming groups of looped/curved bands having bends with an axis of curvature running perpendicular to a hot gas stream
DE10222974B4 (en) * 2002-05-23 2004-07-08 Enginion Ag Heat exchanger
DE102010038978B4 (en) * 2009-11-06 2017-02-09 Mitsubishi Hitachi Power Systems Europe Gmbh deHeizflächenanordnung a steam generator or a heat exchanger and a such a Heizflächenanordnung comprehensive and / or heat exchanger
DE102010038978B8 (en) * 2009-11-06 2017-05-04 Mitsubishi Hitachi Power Systems Europe Gmbh Heizflächenanordnung a steam generator or a heat exchanger and such a Heizflächenanordnung comprehensive and / or heat exchanger
DE102010038978C5 (en) * 2009-11-06 2020-04-09 Mitsubishi Hitachi Power Systems Europe Gmbh Heating surface arrangement of a steam generator or a heat exchanger and a steam generator and / or heat exchanger comprising such a heating surface arrangement

Also Published As

Publication number Publication date
DE4344409C2 (en) 2002-10-31

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee