EP0171558B1 - Appareil échangeur de chaleur - Google Patents

Appareil échangeur de chaleur Download PDF

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Publication number
EP0171558B1
EP0171558B1 EP85107952A EP85107952A EP0171558B1 EP 0171558 B1 EP0171558 B1 EP 0171558B1 EP 85107952 A EP85107952 A EP 85107952A EP 85107952 A EP85107952 A EP 85107952A EP 0171558 B1 EP0171558 B1 EP 0171558B1
Authority
EP
European Patent Office
Prior art keywords
gas
tubes
bank
cooling tubes
gas flue
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
EP85107952A
Other languages
German (de)
English (en)
Other versions
EP0171558A3 (en
EP0171558A2 (fr
Inventor
Georg Hirschle
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 AT85107952T priority Critical patent/ATE46031T1/de
Publication of EP0171558A2 publication Critical patent/EP0171558A2/fr
Publication of EP0171558A3 publication Critical patent/EP0171558A3/de
Application granted granted Critical
Publication of EP0171558B1 publication Critical patent/EP0171558B1/fr
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
    • F22B1/1823—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
    • 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
    • F22B1/1869—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • 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
    • 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
    • Y10S165/355—Heat exchange having separate flow passage for two distinct fluids
    • Y10S165/40—Shell enclosed conduit assembly
    • Y10S165/401—Shell enclosed conduit assembly including tube support or shell-side flow director
    • Y10S165/405—Extending in a longitudinal direction
    • Y10S165/414—Extending in a longitudinal direction for supporting coil tubes

Definitions

  • Such a heat exchanger is known from CH-PS 613 274, in which a hot gas - for. B. Helium - is cooled by water circulating in the cooling tubes, which evaporates.
  • this heat exchanger has no particular problems.
  • z. B. more than 3.5 m as z. B. occur in heat exchangers for cooling helium from a high-temperature reactor, considerable, so-called gap losses occur when flowing through the gap channel.
  • the known heat exchanger according to Fig. 1 has a cylindrical pressure vessel 2, which is closed by a lower, outwardly curved bottom.
  • a gas inlet connection 3 is provided near the lower end of the pressure vessel 2, via which hot helium gas is supplied from a high-temperature reactor (not shown).
  • the container 2 In its upper region, the container 2 is provided with a gas outlet cover 4 which is curved downwards and has a central opening. which is supported on an edge 15 projecting into the interior of the pressure vessel 2 and is fastened to it by means of screws, not shown.
  • a tube bundle 5 is arranged, which consists of approximately 500 water or steam-carrying cooling tubes. The cooling tubes are bent over most of their length along helical lines, the tubes of the outermost tube cylinder of the tube bundle 5 being denoted by "7" and the remaining tubes of the tube bundle being denoted by 6.
  • the pressure vessel 2 has a steam outlet connector 10 and below this a water inlet connector 9. Both nozzles expand inside the pressure vessel 2 and each end in a vertical tube plate 10 'or 9' with horizontal bores.
  • an essentially C-shaped tube box 11 is attached to the steam outlet nozzle 10, to which a central tube 12 connects coaxially to the pressure vessel 2, which extends to below the gas inlet nozzle 3.
  • a cylindrical jacket 14 which is coaxial with the tank 2 and surrounds the tube bundle 5 and rests on an inner, horizontal flange 2 'of the pressure vessel 2 arranged below the water inlet connector 9, which forms the accelerator cable and extends to below the cooling tubes 6, 7.
  • a venezflansc h 14 'near the lower end of the jacket 14 performs the cooling pipes 6, 7 in their course between the support plates 13 and the end plate 12'.
  • a plurality of perforated plates, not shown, are arranged within the central tube 12 and the tube box 11 and serve to support the cooling tubes laterally.
  • the heat exchanger according to FIG. 1 functions as follows: Hot helium flows at approximately 700 ° C. and a pressure of approximately 65 bar into the pressure vessel 2 through the gas inlet nozzle 3, where it is distributed in the annular space between the pressure vessel and the jacket 14. It flows downwards in the intermediate space and then flows upwards within the jacket 14 through the tube bundle 5 and leaves the heat exchanger - still at a pressure of approx. 65 bar, but at a temperature of only 280 ° C - via the central opening of the Gas outlet cover 4.
  • the water used to cool the helium gas enters the cooling pipes 6, 7 via the water inlet connection 9 at approximately 200 ° C., flows through the helically wound sections thereof, evaporating and leaving as steam at approximately 530 ° C. and 185 bar the steam outlet connection 10.
  • the surfaces of the cranks 24 'which slide on the sheet metal strips 20 are coated with a material which has good sliding properties, and the pins 21 are connected to the sheet metal strips 20 by welding vertical length of the slots uniformly distributed tensioning cables 25, which are supported on the jacket 14 by cubes 27 and whose ends are connected to one another by means of tensioning sleeves 26.
  • the tensioning cables 25 consist of a material which has a smaller thermal expansion in the circumferential direction of the jacket than that of the jacket 14; they thus cause increasing temperature of the helium gas, the crankings 24 'between the sheet metal strips 20 slide tangentially against one another in pairs, the diameter of the jacket 14 remaining essentially the same and the gap width d decreasing as a result of the radial thermal expansion of the cooling tube bundle 5.
  • the support plates 13 have a smaller radial dimension than in FIG. 1, so that they only hold the cooling tubes 6 of the tube bundle 5.
  • the outer cooling tubes 7 of the tube bundle 5 are in Eight radial webs 140, each aligned with a support plate 13, which are made in one piece with the jacket 14 or are welded to the jacket in the form of strips.
  • the outer cooling tubes 7 are carried along by the jacket 14 when the diameter is increased, so that the gap width d - apart from a small radial thermal expansion of the cooling tubes 7 themselves and the linear thermal expansion of the webs 140 - remains practically constant at all temperatures.
  • the outer cooling tubes 7 can be provided with a larger slope than the other cooling tubes 6, so that cooler cooling water is available in the area of the gap channel 8 for each height level than in the other areas of the tube bundle 5.

Claims (5)

1. Echangeur thermique comportant un réservoir à pression, dans lequel se trouvent un faisceau de tubes de refroidissement constitué de tubes recourbés en hélice et une enveloppe cylindrique entourant le faisceau de tubes de refroidissement, qui fait passer un gaz à refroidir d'une zone d'entrée à une zone de sortie et qui ménage entre elle et les tubes extérieurs voisins du faisceau de tubes de refroidissement un canal d'interstice de forme annulaire traversé par le gaz à refroidir, pendant que le gaz se trouve dans l'espace annulaire entre le réservoir à pression et l'enveloppe, caractérisé en ce que l'enveloppe présente au moins dans la zone du côté de l'entrée de gaz du faisceau de tubes de refroidissement au moins une échancrure qui s'étend sur une génératrice et empêche un accroissement de la largeur du canal d'interstice lors d'une élévation de la température du gaz.
2. Echangeur thermique selon la revendication 1, caractérisé en ce que des éléments de serrage placés autour de l'enveloppe agissent dans le sens d'une réduction du diamètre de l'enveloppe lors d'une élévation de température du gaz.
3. Echangeur thermique selon la revendication 1 ou 2, caractérisé en ce que le matériau constituant l'enveloppe a un coefficient de dilatation thermique plus petit que celui du matériau constituant le faisceau de tubes de refroidissement.
4. Echangeur thermique comportant un réservoir à pression, dans lequel se trouve un faisceau de tubes de refroidissement constitué de tubes recourbés en hélice et une enveloppe cylindrique qui entoure le faisceau de tubes de refroidissement et conduit un gaz à refroidir d'une zone d'entrée à une zone de sortie et qui détermine entre elle et les tubes extérieurs voisins du faisceau de tubes de refroidissement un canal d'interstice de forme annulaire par lequel passe le gaz à refroidir, tandis que du gaz stagnant se trouve dans l'espace circulaire entre le réservoir à pression et l'enveloppe, caractérisé en ce que les tubes extérieurs du faisceau de tubes de refroidissement sont fixés sur la face interne de l'enveloppe, ce qui empêche un accroissement de la largeur du canal d'interstice lorsque la température du gaz s'élève.
5. Echangeur thermique selon la revendication 4, comportant des plaques de support des tubes réparties à la périphérie du faisceau de tubes de refroidissement, caractérisé en ce que l'enveloppe présente sur sa face interne des entretoises alignées avec les plaques de support, dans lesquelles les tubes extérieurs du faisceau de tubes de refroidissement sont vissés.
EP85107952A 1984-08-15 1985-06-27 Appareil échangeur de chaleur Expired EP0171558B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107952T ATE46031T1 (de) 1984-08-15 1985-06-27 Waermeuebertrager.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3912/84A CH665020A5 (de) 1984-08-15 1984-08-15 Waermeuebertrager.
CH3912/84 1984-08-15

Publications (3)

Publication Number Publication Date
EP0171558A2 EP0171558A2 (fr) 1986-02-19
EP0171558A3 EP0171558A3 (en) 1987-01-07
EP0171558B1 true EP0171558B1 (fr) 1989-08-30

Family

ID=4266173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107952A Expired EP0171558B1 (fr) 1984-08-15 1985-06-27 Appareil échangeur de chaleur

Country Status (6)

Country Link
US (1) US4784219A (fr)
EP (1) EP0171558B1 (fr)
JP (1) JPS6159189A (fr)
AT (1) ATE46031T1 (fr)
CH (1) CH665020A5 (fr)
DE (1) DE3572722D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5890380A (en) * 1997-07-18 1999-04-06 Beech Island Knitting Company, Inc. Elastic knitted band having stretch woven band feel and appearance and method of making same
GB201401092D0 (en) * 2014-01-23 2014-03-12 Rolls Royce Plc Heat exchanger support
WO2017178120A1 (fr) * 2016-04-14 2017-10-19 Linde Aktiengesellschaft Échangeur de chaleur enroulé
WO2020007502A1 (fr) * 2018-07-04 2020-01-09 Linde Aktiengesellschaft Découplage dirigé entre un faisceau de tubes et un tube central dans des échangeurs de chaleur enroulés
CN110779374B (zh) * 2019-11-18 2020-11-24 兰州理工大学 一种换热管道分流装置
US11561049B2 (en) * 2020-05-05 2023-01-24 Air Products And Chemicals, Inc. Coil wound heat exchanger
CN113280651B (zh) * 2021-07-22 2021-09-17 四川空分设备(集团)有限责任公司 绕管式换热器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613274A5 (fr) * 1976-11-17 1979-09-14 Sulzer Ag

Family Cites Families (19)

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Publication number Priority date Publication date Assignee Title
US2469487A (en) * 1942-08-25 1949-05-10 Limahamilton Corp Tube securing means for locomotive and other boilers
US2508247A (en) * 1945-09-25 1950-05-16 Research Corp Heat interchanger
FR1093878A (fr) * 1954-02-25 1955-05-10 Olier Sa Ets A Perfectionnements aux réchauffeurs de fluides
US2833526A (en) * 1955-06-22 1958-05-06 Griscom Russell Co Steam generator head construction
GB810900A (en) * 1956-03-22 1959-03-25 Vorkauf Heinrich Improvements in steam generators with pressure-resistant, cylindrical casings
GB810349A (en) * 1956-09-17 1959-03-11 Brown Fintube Co Improvements in and relating to heat exchangers
FR1267133A (fr) * 1958-06-09 1961-07-21 Procédé d'aménagement d'éléments échangeurs de température à plusieurs étages et éléments échangeurs ainsi obtenus
US3163153A (en) * 1962-03-30 1964-12-29 Foster Wheeler Corp Waste heat recovery apparatus with integral fired heater
AT251013B (de) * 1964-05-20 1966-12-12 Waagner Biro Ag Wärmetauscher
US3286767A (en) * 1964-10-01 1966-11-22 Babcock & Wilcox Co Tube support arrangement
US3871444A (en) * 1971-08-02 1975-03-18 Beckman Instruments Inc Water quality analysis system with multicircuit single shell heat exchanger
CH607852A5 (en) * 1976-05-11 1978-11-30 Sulzer Ag Heat transfer element for gas cooled high temperature reactors
FR2404187A1 (fr) * 1977-09-23 1979-04-20 Quiri & Cie Usines Echangeur de chaleur a faisceau spirale et son procede de fabrication
US4267020A (en) * 1978-08-14 1981-05-12 Westinghouse Electric Corp. Nuclear steam generator wrapper and shell assembly and method for assembling
US4588024A (en) * 1982-03-09 1986-05-13 Phillips Petroleum Company Indirect heat exchanger with baffles
CH645713A5 (de) * 1982-04-22 1984-10-15 Sulzer Ag Waermeuebertrager.
JPS59501273A (ja) * 1982-07-16 1984-07-19 ザ　バブコツク　アンド　ウイルコツクス　カンパニ− 熱交換器およびその製造方法
CH662638A5 (de) * 1982-11-24 1987-10-15 Sulzer Ag Waermeuebertragersystem, vorzugsweise fuer ein prozessgas.
US4427058A (en) * 1982-12-13 1984-01-24 General Electric Company HRSG Sidewall baffle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613274A5 (fr) * 1976-11-17 1979-09-14 Sulzer Ag

Also Published As

Publication number Publication date
EP0171558A3 (en) 1987-01-07
DE3572722D1 (en) 1989-10-05
EP0171558A2 (fr) 1986-02-19
CH665020A5 (de) 1988-04-15
ATE46031T1 (de) 1989-09-15
JPS6159189A (ja) 1986-03-26
US4784219A (en) 1988-11-15

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