EP0205973B1 - Flow-guiding internal provisions for cold gases in high-temperature reactors - Google Patents

Flow-guiding internal provisions for cold gases in high-temperature reactors Download PDF

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Publication number
EP0205973B1
EP0205973B1 EP86107264A EP86107264A EP0205973B1 EP 0205973 B1 EP0205973 B1 EP 0205973B1 EP 86107264 A EP86107264 A EP 86107264A EP 86107264 A EP86107264 A EP 86107264A EP 0205973 B1 EP0205973 B1 EP 0205973B1
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EP
European Patent Office
Prior art keywords
steam generator
hot gas
gas
wall
riser tube
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
EP86107264A
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German (de)
French (fr)
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EP0205973A3 (en
EP0205973A2 (en
Inventor
Gerd Dipl.-Ing. Pollak
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
L&C Steinmueller 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.)
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Publication date
Application filed by L&C Steinmueller GmbH filed Critical L&C Steinmueller GmbH
Publication of EP0205973A2 publication Critical patent/EP0205973A2/en
Publication of EP0205973A3 publication Critical patent/EP0205973A3/en
Application granted granted Critical
Publication of EP0205973B1 publication Critical patent/EP0205973B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • F22B1/1838—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 the hot gas being under a high pressure, e.g. in chemical installations
    • 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
    • F22B1/1823—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 for gas-cooled nuclear reactors

Definitions

  • the invention relates to a gas flow control in a steam generator for a high-temperature reactor, in which hot gas can be supplied to the interior of a standing steam generator jacket enclosing at least one steam generator heating surface via a hot gas deflection device, and in which cold gas at the other end from the steam generator jacket into an annular channel between the steam generator jacket and a surrounding one Pressure vessel jacket is deflected, and the cold gas can be introduced from the ring channel into a discharge pipe and from there can be fed to a circulation blower arranged in the same pressure container, the discharge pipe being arranged coaxially with a part of the hot gas deflection device running along the pressure container axis.
  • Such a gas flow guidance in a steam generator for a high-temperature reactor is known from FR-A-22 87 669.
  • the hot gas deflection is assigned to the lower end of the steam generator jacket and the cold gas is introduced from the ring channel into a discharge pipe designed as a downpipe.
  • the steam generator heating surface consists of a multiplicity of bulkhead heating surfaces, the connections to the main part heating surfaces being led through the cylindrical part of the steam generator jacket and the pressure vessel jacket.
  • a heat exchanger in which hot gas heated in a reactor enters a jacket surrounding heating surfaces from below and exits from the latter at the upper end.
  • an outer annular flow space in which the fluid to be heated rises, and an internal riser pipe, which also serves as a support tube for the heating surfaces, are connected in terms of flow by means of individual tubes, the individual tubes or channels at the lower end of the Riser are summarized.
  • the riser pipe and the individual pipes mentioned form a flow space which is sealed against the flow of heated liquid which emerges from the heating surface and is discharged downwards.
  • the riser pipe is preferably arranged centrally or not centrally to the longitudinal axis of the deflection device for the purpose of adjusting the hot gas supply to the steam generator heating surfaces.
  • the riser pipe can be installed together with the deflection device or separately.
  • the riser pipe can be assembled and disassembled together with the deflection device or separately.
  • connection point at the penetration of the riser pipe to the deflection device is designed for a common or separate assembly as a fixed or detachable connection.
  • the cold gas flowing upward from the annular space to the steam generator jacket 8 and pressure vessel jacket 7 is fed to the riser pipe 2 via a plurality of cold gas channels 1 penetrating the compensation tube bundles 4, from where it flows to the circulating fan 5.
  • the riser pipe 2 is detachably connected via the flange connection 6 to a pipe section 1 a which is firmly connected to the cold gas channels 1.
  • the riser pipe 2 is arranged in the deflection device 3 centrally to the longitudinal axis of the deflection device 3. However, a non-centric arrangement is also conceivable in order to set the exposure to the steam generator heating surfaces 10.
  • the connection point 9 on the penetration of the riser pipe 2 to the deflection device 3 is designed to be fixed or detachable.
  • the free end of the riser pipe 2 extends into a widened intake port 11 in such a way that part of the gas can flow directly from the pressure side of the blower 5 back to the suction side.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (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)

Description

Die Erfindung betrifft eine Gasströmungsführung bei einem Dampferzeuger für einen Hochtemperaturreaktor, bei der dem Inneren eines mindestens eine Dampferzeugerheizfläche umschliessenden stehenden Dampferzeugermantels über eine Heissgasumlenkeinrichtung Heissgas zuführbar ist, und bei der an dem anderen Ende aus dem Dampferzeugermantel Kaltgas in einen Ringkanal zwischen Dampferzeugermantel und einem diesen umgebenden Druckbehältermantel umgelenkt wird, und das Kaltgas aus dem Ringkanal in ein Ableitrohr einführbar und von dort einem in demselben Druckbehälter angeordneten Umwälzgebläse zuführbar ist, wobei das Ableitrohr koaxial zu einem längs der Druckbehälterachse verlaufenden Teil der Heissgasumlenkeinrichtung angeordnet ist.The invention relates to a gas flow control in a steam generator for a high-temperature reactor, in which hot gas can be supplied to the interior of a standing steam generator jacket enclosing at least one steam generator heating surface via a hot gas deflection device, and in which cold gas at the other end from the steam generator jacket into an annular channel between the steam generator jacket and a surrounding one Pressure vessel jacket is deflected, and the cold gas can be introduced from the ring channel into a discharge pipe and from there can be fed to a circulation blower arranged in the same pressure container, the discharge pipe being arranged coaxially with a part of the hot gas deflection device running along the pressure container axis.

Eine solche Gasströmungsführung bei einem Dampferzeuger für einen Hochtemperaturreaktor ist aus der FR-A-22 87 669 bekannt. Dabei ist die Heissgasumlenkung dem unteren Ende des Dampferzeugermantels zugeordnet und das Kaltgas wird aus dem Ringkanal in ein als Fallrohr ausgebildetes Ableitrohr eingeführt. Die Dampferzeugerheizfläche besteht aus einer Vielzahl von Schottenheizflächen, wobei die Anschlüsse zu den Hauptteilheizflächen durch den zylindrischen Teil des Dampferzeugermantels und des Druckbehältermantels hindurchgeführt sind.Such a gas flow guidance in a steam generator for a high-temperature reactor is known from FR-A-22 87 669. The hot gas deflection is assigned to the lower end of the steam generator jacket and the cold gas is introduced from the ring channel into a discharge pipe designed as a downpipe. The steam generator heating surface consists of a multiplicity of bulkhead heating surfaces, the connections to the main part heating surfaces being led through the cylindrical part of the steam generator jacket and the pressure vessel jacket.

Weiterhin ist aus der FR-A-23 51 373 ein Wärmetauscher bekannt, bei dem in einem Reaktor erwärmtes Heissgas von unten in einen Heizflächen umgebenden Mantel eintritt und aus diesem am oberen Ende austritt. Zur Beaufschlagung der Heizflächen mit zu erwärmender Flüssigkeit werden ein äusserer ringförmiger Strömungsraum, in dem das zu erwärmende Fluid aufsteigt, und ein zugleich als Tragrohr für die Heizflächen dienendes, innen liegendes Steigrohr mittels Einzelrohren strömungsmässig verbunden, wobei die Einzelrohre bzw. Kanäle am unteren Ende des Steigrohres zusammengefasst sind. Dabei bilden das Steigrohr und die erwähnten Einzelrohre einen Strömungsraum, der gegenüber der aus der Heizfläche austretenden und nach unten abgeführten Strömung von erwärmter Flüssigkeit abgedichtet ist.Furthermore, from FR-A-23 51 373 a heat exchanger is known in which hot gas heated in a reactor enters a jacket surrounding heating surfaces from below and exits from the latter at the upper end. To act upon the heating surfaces with liquid to be heated, an outer annular flow space, in which the fluid to be heated rises, and an internal riser pipe, which also serves as a support tube for the heating surfaces, are connected in terms of flow by means of individual tubes, the individual tubes or channels at the lower end of the Riser are summarized. The riser pipe and the individual pipes mentioned form a flow space which is sealed against the flow of heated liquid which emerges from the heating surface and is discharged downwards.

Es ist die Aufgabe der vorliegenden Erfindung, ausgehend von der FR-A-22 87 669, eine Gasführung der im Oberbegriff des Anspruches 1 genannten Art anzugeben, bei der die Einführbarkeit des Kaltgases aus dem Ringkanal in das Ableitrohr und die Zufuhr des abgeleiteten Gases zum Umwälzgebläse so gestaltet sind, dass eine gute Zugänglichkeit zu den die Strömungspfade verbindenden Verbindungselementen und ein einfaches Einhängen der für die Dampferzeugung erforderlichen Bauelemente in den Druckbehälter gewährleistet sind.It is the object of the present invention, starting from FR-A-22 87 669, to specify a gas duct of the type mentioned in the preamble of claim 1, in which the cold gas can be introduced from the annular channel into the discharge pipe and the supply of the derived gas to Circulation blowers are designed in such a way that good accessibility to the connecting elements connecting the flow paths and simple hooking of the components required for steam generation into the pressure vessel are ensured.

Diese Aufgabe wird dadurch gelöst,

  • - dass die Heissgasumlenkeinrichtung mit dem oberen Ende des Dampferzeugermantels verbunden ist,
  • - dass das Kaltgas am oberen Ende des Ringraumes durch mehrere das obere Ende des Dampferzeugermantels durchsetzende Einzelkanäle in das als Steigrohr wirkende Ableitrohr einströmt, wobei das obere Ende des Dampferzeugermantels gleichzeitig von Kompensationsrohrbündeln durchsetzt ist, und
  • - dass das Steigrohr in dem längs zur Behälterachse verlaufenden Teil der Heissgasumlenkeinrichtung derart angeordnet ist, dass es die innere Begrenzung eines Ringkanales bildet, durch den das Heissgas in das Innere des Dampferzeugermantels eintritt, wobei das Streigrohr mit den Einzelkanälen gegenüber der Heissgasströmung einen abgedichteten Strömungsraum bildet, und das Kaltgas zu dem oberhalb des Dampferzeugermantels in dem Druckbehälter angeordneten Umwälzgebläse führt.
This task is solved by
  • that the hot gas deflection device is connected to the upper end of the steam generator jacket,
  • - That the cold gas at the upper end of the annular space flows through a plurality of individual channels passing through the upper end of the steam generator casing into the discharge pipe acting as a riser pipe, the upper end of the steam generator casing being simultaneously penetrated by compensation pipe bundles, and
  • - That the riser pipe is arranged in the part of the hot gas deflecting device running longitudinally to the container axis in such a way that it forms the inner boundary of an annular channel through which the hot gas enters the interior of the steam generator jacket, the riser pipe with the individual channels forming a sealed flow space with respect to the hot gas flow , and the cold gas leads to the circulation fan arranged above the steam generator jacket in the pressure vessel.

Durch die Anordnung der Heissgaszufuhr und der Kaltgasabfuhr am oberen Ende des Dampferzeugermantels, sowie die Anordnung der Kompensationsrohrbündel in diesem unteren Ende und durch die Ausbildung des Ableitrohres als Steigrohr und das Versetzen des Steigrohres in das Innere der Heissgasumlenkeinrichtung, das sich parallel zur Behälterachse erstreckt, können die im Druckbehälter angeordneten und für die Dampferzeugung erforderlichen Bauelemente als Baugruppe in den Druckbehälter eingehängt und aus diesem entnommen werden.Due to the arrangement of the hot gas supply and the cold gas discharge at the upper end of the steam generator jacket, as well as the arrangement of the compensation tube bundles in this lower end and the design of the discharge pipe as a riser pipe and the displacement of the riser pipe into the interior of the hot gas deflection device, which extends parallel to the container axis the components arranged in the pressure vessel and required for steam generation are suspended as an assembly in the pressure vessel and removed therefrom.

Vorzugsweise ist das Steigrohr zentrisch oder auch nicht zentrisch zur Längsachse der Umlenkeinrichtung zwecks Einstellung der Heissgasbeaufschlagung der Dampferzeugerheizflächen angeordnet.The riser pipe is preferably arranged centrally or not centrally to the longitudinal axis of the deflection device for the purpose of adjusting the hot gas supply to the steam generator heating surfaces.

Weiterhin kann durch den Einbau einer Flanschverbindung das Steigrohr zusammen mit der Umlenkeinrichtung oder getrennt montiert werden.Furthermore, by installing a flange connection, the riser pipe can be installed together with the deflection device or separately.

Auch ist es zweckmässig, dass durch Einbau einer Flanschverbindung zwischen den Kaltgaskanälen und dem Steigrohr das Steigrohr zusammen mit der Umlenkeinrichtung oder getrennt montiert und demontiert werden kann.It is also expedient that by installing a flange connection between the cold gas channels and the riser pipe, the riser pipe can be assembled and disassembled together with the deflection device or separately.

Die Verbindungsstelle an der Durchdringung des Steigrohres zur Umlenkeinrichtung ist für eine gemeinsame bzw. getrennte Montage als feste oder lösbare Verbindung gestaltet.The connection point at the penetration of the riser pipe to the deflection device is designed for a common or separate assembly as a fixed or detachable connection.

Eine Ausführungsform der Einbauten ist in der Zeichnung dargestellt.An embodiment of the internals is shown in the drawing.

Das vom Ringraum zum Dampferzeugermantel 8 und Druckbehältermantel 7 aufwärts strömende Kaltgas wird über mehrere, die Kompensationsrohrbündel 4 durchdringende Kaltgaskanäle 1 dem Steigrohr 2 zugeführt, von wo es dem Umwälzgebläse 5 zuströmt. Das Steigrohr 2 ist über die Flanschverbindung 6 lösbar mit einem mit den Kaltgaskanälen 1 fest verbundenen Rohrabschnitt 1 a verbunden. Das Steigrohr 2 ist in der Umlenkeinrichtung 3 zentrisch zur Längsachse der Umlenkeinrichtung 3 angeordnet. Es ist aber auch eine nichtzentrische Anordnung denkbar, um die Beaufschlagung der Dampferzeugerheizflächen 10 einzustellen. Die Verbindungsstelle 9 an der Durchdringung des Steigrohres 2 zur Umlenkeinrichtung 3 ist fest oder lösbar gestaltet.The cold gas flowing upward from the annular space to the steam generator jacket 8 and pressure vessel jacket 7 is fed to the riser pipe 2 via a plurality of cold gas channels 1 penetrating the compensation tube bundles 4, from where it flows to the circulating fan 5. The riser pipe 2 is detachably connected via the flange connection 6 to a pipe section 1 a which is firmly connected to the cold gas channels 1. The riser pipe 2 is arranged in the deflection device 3 centrally to the longitudinal axis of the deflection device 3. However, a non-centric arrangement is also conceivable in order to set the exposure to the steam generator heating surfaces 10. The connection point 9 on the penetration of the riser pipe 2 to the deflection device 3 is designed to be fixed or detachable.

Das freie Ende des Steigrohres 2 erstreckt sich in einen aufgeweiteten Ansaugstutzen 11 so hinein, dass ein Teil des Gases von der Druckseite des Gebläses 5 direkt wieder zur Saugseite strömen kann.The free end of the riser pipe 2 extends into a widened intake port 11 in such a way that part of the gas can flow directly from the pressure side of the blower 5 back to the suction side.

Die gezeigte Gestaltung der Strömungsverbindung von Steigrohr und Umwälzgebläse wird bevorzugt.The shown design of the flow connection of the riser pipe and circulation fan is preferred.

Claims (5)

1. Gas flow guiding means in case of a steam generator of a high-temperature reactor, with which to the interior of an upright steam generator wall (8) surrounding at least one steam generator heating surface (10) hot gas is suppliable via a hot gas deflection mechanism (3) and with which at the other end from the steam generator wall (8) cold gas is deflected into an annular channel between the steam generator wall (8) and a pressure tank wall (7) surrounding the steam generator wall (8), and the cold-gas is conveyed from the annular channel into an off-take tube and is conveyable from there to a circulation blower fan 15) arranged in the same pressure tank, said off-take tube being arranged coaxially with respect to a portion of the hot gas deflection means extending along the axis of the pressure tank, characterized in that the hot gas deflection mechanism (3) is connected with the upper end of the steam generator wall (8), that the cold gas flows at the upper end of the annular channel through a plurality of individual channels (1) passing through the upper end of the steam generator wall (8), into the off-take tube (2) acting as a riser tube, the upper end of the steam generator being likewise intersected by compensating tube bundles, and in that the riser tube (2) is arranged in the portion of the hot gas deflection mechanism (3) extending along the tank axis in such a manner that it forms the inner limit of an annular channel, via which the hot gas enters into the interior of the steam generator wall (8), said riser tube (2) forming together with the individual channels (1) a sealed flow space with respect to the hot gas flow and guides the cold gas to the circulation blower fan (5) arranged within the pressure tank (7) above the steam generator wall (8).
2. Gas flow guiding means according to claim 1, characterized in that the riser tube (2) is arranged centrically or also non-centrically with respect to the longitudinal axis of the hot gas deflection mechanism (3) for adjusting the admission of hot gas to the steam generator heating surface (10).
3. Gas flow guiding means according to claim 1, characterized in that by provision of flange connection (6) between the individual channels (1) on one hand and the riser tube (2) on the other hand the riser tube (2) can be mounted or demounted together with the hot gas deflection mechanism (3) or separately therefrom.
4. Gas flow guiding mechanism according to any one of the claims 1 to 3, characterized in that for a common or separate mounting the joint (9) at the crossing of the riser tube (2) to the deflection mechanism (3) is designed for a common or separate mounting.
EP86107264A 1985-05-28 1986-05-28 Flow-guiding internal provisions for cold gases in high-temperature reactors Expired EP0205973B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3519038A DE3519038C1 (en) 1985-05-28 1985-05-28 Cold gas flow control for a steam generator for a high temperature reactor
DE3519038 1985-05-28

Publications (3)

Publication Number Publication Date
EP0205973A2 EP0205973A2 (en) 1986-12-30
EP0205973A3 EP0205973A3 (en) 1987-03-04
EP0205973B1 true EP0205973B1 (en) 1989-02-08

Family

ID=6271775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107264A Expired EP0205973B1 (en) 1985-05-28 1986-05-28 Flow-guiding internal provisions for cold gases in high-temperature reactors

Country Status (3)

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US (1) US4694893A (en)
EP (1) EP0205973B1 (en)
DE (1) DE3519038C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3529634A1 (en) * 1985-08-19 1987-02-26 Steinmueller Gmbh L & C HEAT EXCHANGER FOR THE HEAT EXCHANGE BETWEEN A HOT GAS AND A FLUID AGENT IN PIPE BUNNING HEATING AREAS, ESPECIALLY STEAM GENERATOR FOR GAS-COOLED HIGH TEMPERATURE REACTORS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1642996B1 (en) * 1967-03-02 1971-05-13 Deggendorfer Werft Eisenbau Reaction apparatus with annular contact tube bundle and heat exchanger
DE2328556A1 (en) * 1973-06-05 1975-01-02 Kraftwerk Union Ag HEAT EXCHANGER ARRANGEMENT FOR A CLOSED GAS CIRCUIT E.g. OF A THERMAL POWER PLANT
DE2448466A1 (en) * 1974-10-11 1976-04-22 Otto & Co Gmbh Dr C BOILER WITH WALL MADE OF WELDABLE MATERIAL
DE2557085A1 (en) * 1975-12-18 1977-07-07 Otto & Co Gmbh Dr C DEVICE FOR REGULATING THE WALL TEMPERATURE OF A PRESSURE BOILER
CH607852A5 (en) * 1976-05-11 1978-11-30 Sulzer Ag Heat transfer element for gas cooled high temperature reactors
DE3030697A1 (en) * 1980-08-14 1982-03-18 Hochtemperatur-Reaktorbau GmbH, 5000 Köln GAS-COOLED CORE REACTOR

Also Published As

Publication number Publication date
EP0205973A3 (en) 1987-03-04
EP0205973A2 (en) 1986-12-30
DE3519038C1 (en) 1987-01-15
US4694893A (en) 1987-09-22

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