EP0172363B1 - Appareil échangeur de chaleur, en particulier pour refroidir les gaz d'un réacteur à haute température - Google Patents

Appareil échangeur de chaleur, en particulier pour refroidir les gaz d'un réacteur à haute température Download PDF

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Publication number
EP0172363B1
EP0172363B1 EP85107951A EP85107951A EP0172363B1 EP 0172363 B1 EP0172363 B1 EP 0172363B1 EP 85107951 A EP85107951 A EP 85107951A EP 85107951 A EP85107951 A EP 85107951A EP 0172363 B1 EP0172363 B1 EP 0172363B1
Authority
EP
European Patent Office
Prior art keywords
support plates
heat exchanger
tube
pressure vessel
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.)
Expired
Application number
EP85107951A
Other languages
German (de)
English (en)
Other versions
EP0172363A3 (en
EP0172363A2 (fr
Inventor
Hans Fricker
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.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Priority to AT85107951T priority Critical patent/ATE40744T1/de
Publication of EP0172363A2 publication Critical patent/EP0172363A2/fr
Publication of EP0172363A3 publication Critical patent/EP0172363A3/de
Application granted granted Critical
Publication of EP0172363B1 publication Critical patent/EP0172363B1/fr
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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • 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
    • F22B37/205—Supporting and spacing arrangements for tubes of a tube bundle
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0054—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for nuclear applications
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/051—Heat exchange having expansion and contraction relieving or absorbing means
    • Y10S165/052—Heat exchange having expansion and contraction relieving or absorbing means for cylindrical heat exchanger
    • Y10S165/063—Cylindrical heat exchanger fixed to fixed end supports
    • Y10S165/065—Bent cylindrical heat exchanger

Definitions

  • the invention relates to a heat exchanger with the features of the preamble of claim 1.
  • a heat exchanger of this type is known from DE-C-3037386.
  • this heat exchanger which is used to cool very high temperature gas, e.g. B. 800 ° C
  • a tube is provided in the center of the vertical tube bundle, at the lower end of which the outlet ends of the tubes of the tube bundle are connected.
  • This central tube thus serves to remove the secondary coolant after it has flowed through the tubes of the bundle and has absorbed heat from the hot gas.
  • each group of support plates is fastened to the central tube via relatively thin-walled sleeves such that the lower sleeve end is welded to the central tube and the upper sleeve end is welded to the upper region of the support plate edge parallel to the central tube.
  • the support system is designed to be elastic in the radial direction.
  • the support plates of an upper group can be supported on the aligned support plates of the group below, in order to largely keep the torques acting on the support plates away from the sleeves.
  • the central tube is connected to a tube plate, to which the inlet ends of the tubes are connected and which rests with its outer edge on a shoulder of the pressure vessel.
  • the heat exchanger which has proven itself in operation, it is disadvantageous that it is necessary to fasten the support plates of the central tube.
  • the heat exchanger is mainly suitable for tube bundles whose axial extent is only so great that the thermal expansion in the axial direction is not of major importance.
  • the invention has for its object to improve a heat exchanger of the type mentioned in such a way that a central tube for fastening the support plates can be dispensed with and the support system is suitable for holding tube bundles of very great axial length.
  • the expansion zone according to the invention can also deal with the thermal expansion problems of tube bundles with a very large axial extent.
  • the heat exchanger has a cylindrical pressure vessel 102, which is closed off by a lower, arched bottom 100. Near the lower end of the pressure vessel 102 there is a gas inlet connection 103 which is connected to a line (not shown) which supplies hot helium gas to the vessel from a high-temperature reactor. At its upper end, the container 102 has a downwardly curved lid 104 with a central gas outlet opening 14. The lid 104 is supported on a peripheral, inwardly projecting edge 15 of the pressure vessel 102 and is fastened to this by means of screws, not shown.
  • a tube bundle 105 which consists of water or steam-carrying tubes 106, is accommodated in the pressure vessel 102. The tubes are coiled along helical lines for most of their length and form several coaxial tube cylinders, which are also coaxial with the container 102.
  • the pressure vessel 102 has a water inlet connection 109 which penetrates its wall laterally, which widens within the pressure vessel and ends in a vertical tube plate 19 having horizontal bores.
  • a steam outlet connection 110 is provided between the lower end of the tube bundle 105 and the base 100, which ends in a vertical tube plate 11 having horizontal bores.
  • a cylindrical jacket 114 which is also coaxial with the tank and surrounds the tube bundle 105 and is attached to an inner, horizontal flange 12 of the pressure vessel 102 arranged below the water inlet port 109 and extends downward to a height between the gas inlet port 103 and the steam outlet port 110 .
  • a cylindrical displacement body 112 which is closed at the upper end, is arranged in the center of the tube bundle 105 and is fastened to the upper end of the casing 114 by means of a four-armed cross 13 and extends downward to a height somewhat above the gas inlet connection piece 103 .
  • a vertically downward and radially extending support plate 113 is attached to each arm of the cross 13, these four support plates 113 together forming a first group of two groups of a support system for the pipes 106.
  • the lower edge of the support plates 113 runs obliquely downwards from the inside to the outside, so that there is a greater length of the support plates on the outside than on the inside.
  • a further displacement body 112 ′ extends in the center thereof, which is closed at its lower end and whose upper end is offset in diameter and projects into the lower end of the displacement body 112, so that the two ends can slide into one another .
  • support plates 113 ' are attached to the displacement body 112', each of which is aligned with one of the support plates 113 of the first group.
  • the four support plates 113 ' together form the second group of the support system.
  • the upper edge of the support plates 113 'of the second group runs horizontally.
  • the tubes 106 are connected to the tube plate 19 of the water inlet connector 109 and are initially distributed evenly around the displacement body 112 in an upper deflection zone 116. They then form the tube bundle 105 as helically wound tubes up to the lower end of the further displacement body 112 '. The tubes 106 then pass through a lower deflection zone 118 and end at the tube plate 11 of the steam outlet connection 110.
  • the shape of the tubes in the deflection zone 118 means that the hottest zone of the heat exchanger, the pipe sections in this zone can deform well under the influence of thermal expansion. In their helical course, the tubes 106 extend through holes in the support plates 113 and 113 ', as a result of which they are guided and held securely.
  • an expansion zone 120 is provided which is free of support plates and through which the windings of the tubes 106 are like coil springs and with essentially the same pitch as their course through the Extend support plates unsupported.
  • the tubes located near the displacement bodies 112 and 112 ' have a greater axial length within the expansion zone 120 than the tubes lying outside, so that the expansion behavior between the inner tubes with a small winding radius is better matched and the outer tubes with a larger winding radius is reached.
  • the support plates 113 'of the second group are articulated at their lower edge by means of a tab 130 on the bottom 100 of the pressure vessel, so that the four tabs 130 together carry the second support plate group.
  • the support plates 113 ' have no connection to the casing 114, so that the second group can expand independently of the casing 114 in the axial direction.
  • hot helium with a temperature of approx. 700 ° C. and a pressure of approximately 65 bar flows into the pressure vessel 102 through the gas inlet connection 103 and is distributed in the annular space between the pressure vessel wall and the jacket 114.
  • the hot gas also flows into the lower deflection zone 118 below the jacket 14 and then flows through the space between the jacket 114 and the displacers 112 and 112 ', wherein it is cooled on the tubes 106. It still escapes a pressure of approximately 65 bar, but has a temperature of only 280 ° C., through the central opening 14 to a blower (not shown).
  • the helium gas is cooled by heat transfer to water, which flows into the pipes 106 via the water inlet connection 109 at a temperature of approximately 200 ° C.
  • the water evaporates in the helically wound pipe sections and leaves the heat exchanger at about 530 ° C. and 185 bar via the steam outlet connection 110, from where the steam is used for the purpose of power generation and / or heating.
  • the steam outlet connection 110 is arranged in the hottest area of the heat exchanger, the shape of the pipes 106 in the lower deflection zone 118 is relatively simple, the pipes only having to compensate for slight radial expansion.
  • the design of the pipes 106 in the upper deflection zone 116 is even simpler.
  • the two support plate groups and / or the two displacement bodies 112 and 112 ' can be rigidly connected to one another to protect the pipes 106 and also to simplify the work, for. B. by means of tie rods.
  • the heat exchanger can also be arranged with a horizontal axis or in any inclination.
  • the stretch zone 120 can be in a higher range.
  • the inlet and / or outlet ports for the cooling medium and the medium to be cooled can be arranged differently than shown.
  • the edges of the support plates 113 and 113 'bordering on the expansion zone can, depending on the desired expansion properties of the helically wound tubes in the expansion zone, have a different profile than the drawing shown.
  • the jacket 114 may be omitted or e.g. B. be designed as a tube wall.
  • the pressure vessel can be insulated on the inside or outside or on both sides, at least in the hot area.
  • At least one axial guide slot can be provided in the jacket 114 in the region of each support plate 113, into which a slide shoe attached to the associated support plate is guided, the length of which in the axial direction is less than the axial length of the slot, according to patent CH-PS 613274.
  • the number of support plates can also be greater than four, and the number in one group can differ from that in the other groups.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Claims (4)

1. Echangeur de chaleur, destiné notamment au refroidissement de gaz provenant d'un réacteur à haute température, comportant un faisceau (105), disposé dans un réservoir sous pression (102), de tubes (106) enroulés en spirale dans des surfaces cylinriques coaxiales, lesquels sont maintenus dans un système de support qui est constitué de deux groupes de plaques de support (113, 113'), disposés axialement l'un derrière l'autre, dont chaque groupe comporte au moins trois plaques de support réparties sur le pourtour du faisceau de tubes et reliées entre elles, à travers lesquelles s'étendent les spires des tubes, et qui prend appui dans le réservoir sous pression, caractérisé en ce qu'il est prévu entre les deux groupes du système de support, une zone de dilatation (120) ne comportant pas de plaques de support, et en ce que l'appui de chacun des deux groupes se trouve à leurs extrémités éloignées l'une de l'autre.
2. Echangeur de chaleur selon la revendication 1, comportant un corps de déplacement tubulaire, disposé au centre du faisceau de tubes, caractérisé en ce que le corps de déplacement est subdivisé en deux sections (112, 112') télescopiques guidées l'une dans l'autre, dans le domaine de la zone de dilatation, et en ce que les plaques de support de l'un des deux groupes sont fixées sur la section voisine.
3. Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que l'extension axiale de la zone de dilatation - vue en direction radiale - diminue de l'intérieur vers l'extérieur.
4. Echangeur de chaleur selon l'une des revendications 1 à 3, caractérisé en ce qu'il est prévu pour le fluide secondaire traversant les tubes du faisceau de tubes, dans la zone des deux extrémités du faisceau de tubes, respectivement une tubulure d'entrée (109) et une tubulure de sortie (110) qui traversent latéralement la paroi du réservoir sous pression.
EP85107951A 1984-08-21 1985-06-27 Appareil échangeur de chaleur, en particulier pour refroidir les gaz d'un réacteur à haute température Expired EP0172363B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107951T ATE40744T1 (de) 1984-08-21 1985-06-27 Waermeuebertrager, insbesondere zum kuehlen von gas aus einem hochtemperaturreaktor.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3999/84 1984-08-21
CH3999/84A CH665019A5 (de) 1984-08-21 1984-08-21 Waermeuebertrager, insbesondere zum kuehlen von gas aus einem hochtemperaturreaktor.

Publications (3)

Publication Number Publication Date
EP0172363A2 EP0172363A2 (fr) 1986-02-26
EP0172363A3 EP0172363A3 (en) 1986-12-30
EP0172363B1 true EP0172363B1 (fr) 1989-02-08

Family

ID=4267923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107951A Expired EP0172363B1 (fr) 1984-08-21 1985-06-27 Appareil échangeur de chaleur, en particulier pour refroidir les gaz d'un réacteur à haute température

Country Status (6)

Country Link
US (1) US4687052A (fr)
EP (1) EP0172363B1 (fr)
JP (1) JPS6162787A (fr)
AT (1) ATE40744T1 (fr)
CH (1) CH665019A5 (fr)
DE (1) DE3436549C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067330A (en) * 1990-02-09 1991-11-26 Columbia Gas System Service Corporation Heat transfer apparatus for heat pumps
DE4136003A1 (de) * 1991-10-31 1993-05-06 Siemens Ag, 8000 Muenchen, De Waermetauscher, insbesondere zur rekuperativen vorwaermung der luft fuer verbrennungskraftmaschinen
NL1008124C2 (nl) * 1998-01-26 1999-07-27 Lentjes Standard Fasel Bv Inrichting en werkwijze voor het koelen van gas.
DE10303341A1 (de) * 2003-01-29 2004-08-26 Alstom Technology Ltd Luftkühler für Kraftwerksanlagen sowie Anwendung eines solchen Luftkühlers
EP3128278B1 (fr) * 2015-08-06 2018-06-20 Linde Aktiengesellschaft Amenee et extraction d'ecoulements tubulaires par temperature intermediaire pour des echangeurs de chaleur a bobines
US11841194B2 (en) * 2018-07-04 2023-12-12 Linde Gmbh Directed decoupling between bundle and core tube in wound heat exchangers
EP3633298A1 (fr) * 2018-10-04 2020-04-08 Linde Aktiengesellschaft Fluide caloporteur enroulé et procédé d'échange de chaleur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL113071C (fr) * 1961-06-12
CH613274A5 (fr) * 1976-11-17 1979-09-14 Sulzer Ag
US4284134A (en) * 1978-09-05 1981-08-18 General Atomic Company Helically coiled tube heat exchanger
CH646245A5 (de) * 1980-09-17 1984-11-15 Sulzer Ag Waermeuebertrager mit rohrwendeln und mindestens einer gruppe von stuetzplatten fuer die rohrwendeln.
JPS5984080A (ja) * 1982-11-05 1984-05-15 Ishikawajima Harima Heavy Ind Co Ltd ヘリカルコイル形熱交換器

Also Published As

Publication number Publication date
CH665019A5 (de) 1988-04-15
EP0172363A3 (en) 1986-12-30
US4687052A (en) 1987-08-18
EP0172363A2 (fr) 1986-02-26
DE3436549C1 (de) 1985-08-29
JPS6162787A (ja) 1986-03-31
ATE40744T1 (de) 1989-02-15

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