US3854528A - Heat-exchanger module - Google Patents

Heat-exchanger module Download PDF

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Publication number
US3854528A
US3854528A US00330114A US33011473A US3854528A US 3854528 A US3854528 A US 3854528A US 00330114 A US00330114 A US 00330114A US 33011473 A US33011473 A US 33011473A US 3854528 A US3854528 A US 3854528A
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US
United States
Prior art keywords
heat
wall
fluid
inner sleeve
outer 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
US00330114A
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English (en)
Inventor
P Pouderoux
G Salon
J Andro
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.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
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Filing date
Publication date
Application filed by Stein Industrie SA filed Critical Stein Industrie SA
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Publication of US3854528A publication Critical patent/US3854528A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/1607—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 arranged in parallel spaced relation with particular pattern of flow of the heat exchange media, e.g. change of flow direction
    • 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
    • F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
    • F22B1/063—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium for metal cooled nuclear reactors
    • 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
    • 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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2270/00—Thermal insulation; Thermal decoupling

Definitions

  • a transverse partition-wall is disposed between the outer shell and the inner sleeve assuming said circulations.
  • Said transverse partition-wall delimits two annular spaces which communicate respectively with external ducts for the admission and discharge of the fluids.
  • the ducts are immediately adjacent to said transverse partition-wall in order to avoid differential expansion under both steady state and transient flow conditions between the outer shell and the tubes of the heat exchanger unit.
  • the invention relates to heat exchanger units comprising a plurality of tubes for the circulation of a first fluid, said tubes being disposed in a bundle between two tube plates within an inner sleeve for the circulation of a second fluid, provision being made at least at one end of the tube bundle for a rectilineal portion followed by elbowed portions which constitute expansion bends for compensating differential expansions.
  • These tubes are subdivided into two sets of equal number and disposed on two square lattices with a uniform pitch on each side of a principal lattice line along which the two lattices are relatively displaced by one-half pitch.
  • the two lattices are placed in interjacent relation at the level ofthe expansion ben ds.
  • the tubes of any given row which is perpendicular to the principal .line retain substantially the same cross-sectional area as in the rectilineal section and extend into the other lattice in such a manner as to form expansion bends in the plane of said row and to pass between the parallel rows of the tubes of the other lattice.
  • the present invention relates to improvements which are distinguished by the fact that the inner sleeve for the circulation of the second fluid delimits with the outer shell of the heat-exchanger unit and a transverse partition-wall two annular spaces consisting of an upper and lower space which communicate respectively with external ducts for the admission and discharge of the second fluid, said ducts being immediately adjacent to said partition-wall in order to admit of minimum differential expansion under both steadystate and transient flow conditions between said outer shell and the tubes of said bundle.
  • the transverse partition-wall comprises a supporting ring fixed on the inner sleeve, two radial fins disposed on each side of the partition-wall within the annular spaces in order to prevent circulation of the second fluid in the vicinity of said partition-wall, with the result that the external ducts for the admission and discharge of the second fluid are insulated hydraulically and thermally both with respect to each other and with respect to said tube bundle.
  • thermal insulation In order to prevent thermal stresses on the outer shell, thermal insulation must be provided between the hot and cold portions of the annular spaces which are adjacent to the external ducts for the admission and discharge of the second fluid.
  • a thermal screen is placed concentrically with and externally of the inner sleeve and extends along the annular spaces over a distance which is limited to a point located beyond the openings for the admission and discharge of the second fluid.
  • the ring for supporting the inner sleeve is fixed on an internal shoulder of the outer shell of the heat-exchanger unit.
  • a plurality of heatexchanger units of the type described can be disposed at several locations in a steam generator circuit in order to carry out heating and vaporization of the water.
  • FIG. 1 is a vertical sectional view of a heat-exchanger unit in accordance with the invention
  • FIG. 2 is a diagrammatic sectional view of the same unit in accordance with FIG. 1;
  • FIG. 3 shows a general layout of heat-exchanger units in accordance with the invention.
  • each unit is essentially constituted by a shell 1 which is usually vertical and by a bundle of straight tubes 2 placed within said shelL'The ends of said tubes are welded respectively to a lower tube plate 4 and an upper tube plate 5 which are both placed within the shell 1 and located respectively at each end of this latter.
  • Said tube plates are disposed in parallel on the circuit of a first heat-transfer fluid consisting in this instance of water in the form of either liquid or vapor.
  • the second fluid consists of liquid sodium and circulates in contact with said tubes within the sleeve 12.
  • openings 15 for the admission of sodium at the upper end of the sleeve and openings 15a for the discharge of sodium at the lower end whilst the water flows within the tubes 2 in the upward direction from an inlet nozzle 8 to an outlet nozzle 9.
  • the annular chamber which is formed between the outer shell 1 and the inner sleeve 12 is separated by a partition-wall 20 in order to form an inlet space 21 and an outlet space 22 which may both be annular.
  • the shell 1 is provided with sodium inlet and outlet nozzles 6 and 7 which open respectively into the spaces 21 and 22.
  • a thermal screen is provided over part of the length of the spaces 21 and 22. In the example of construction shown in FIG.
  • said screen can be essentially composed of a jacket 23, the top end of which is welded to the sleeve 12 and the bottom end of which is free so as to permit of expansion, radial fins 24 which are fixed on the jacket 23, radial fins 25 which are fixed on the outer shell 1 and in which the stationary sodium is entrapped.
  • the jacket 23 can contain either stationarysodium or any other material which forms a thermal screen.
  • the partition-wall 20 also serves to transmit the weight of the sleeve .12 and is composed of a ring 26, said ring being fixed on the jacket 23 and intended to rest on an annular flange 27 which is provided on the shell 1.
  • the presence of the annular chamber between the inner sleeve 12 and the shell 1 is turned to useful account for the assembly operations.
  • the tube bundle which has been completely joined to the tube plates can be introduced into the outer shell together with the inner sleeve (the portion which is remote from the expansion bends being introduced at the top end).
  • each tube of the bundle forms an expansion bend 18 in the vicinity of one end of the unit, expecially at the topportion as shown in FIG. 1.
  • the sleeve 12 which is provided around the tube bundle stops short of said expansion bends.
  • the expansion bends can occupy the entire available space within the chamber 11 which is provided for this purpose while at the same time enhancing the sodium flow at a distance from said expansion bends which are thus located in a calm zone and can be filled with neutral gas if necessary.
  • the expansion bends can be arranged in a central bundle and .two outer bundles which make it possible to cancel the overall stress on the upper tube plate 5.
  • the heat-exchanger unit which is illustrated in FIGS. 1 and 2 is a separate assembly which is intended to be connected in series with other units in order to form a complete heat-exchanger (FIG. 3), for example a steam generator consisting of a heater-evaporator unit 29 and a superheater unit 30 in a liquid-metal flow circuit.
  • the broken lines indicate the layout of the connecting piping in a conventional heat exchanger and the full lines indicate the layout which is made possible by the invention.
  • the hot sodium comes from a heat exchanger 31 which is usually placed in a lower position than the heat exchanger and returns to a pump 32 after cooling, said pump being usually placed at the same level as the top of the heat exchanger.
  • the reduction in length of piping is clearly demonstrated in this figure.
  • the heat exchanger is in fact the steam generator of a nuclear power station in which a breeder reactor is cooled by liquid sodium or another liquid alkali metal. During operation of the heat exchanger, heat is transferred from the hot sodium which is cooled to the water which vaporizes.
  • Said steam generator (shown in FIG. 3) is made up of one or a number of units in accordance with the invention, these units being disposed in parallel at different points of its circuit in order to ensure heating and vaporization of the water, superheating and in some cases resuperheating (not shown in the drawings).
  • a heat-exchanger unit comprising a tube bundle, an inner sleeve surrounding said bundle, openings located at the ends of the inner sleeve for admission and discharge of a first fluid into and from said bundle, an outer shell for the heat-exchanger unit spaced from said inner sleeve, a jacket on said inner sleeve extending downwardly between said sleeve and said outer shell a transverse partition-wall between said jacket and said shell, two annular spaces consisting of an upper and lower space between said wall and said jacket and said shell, external ducts opening into said spaces for the admission and discharge of a second fluid, and said ducts opening immediately adjacent to said partition-wall whereby minimum differential ex pansion under both steady-state and transient flow conditions occurs between said outer shell and the tubes of said bundle.
  • said transverse partition-wall including a supporting ring fixed on said jacket, two sets of radial fins disposed on each side of said partition-wall within said annular spaces preventing circulation of the second fluid in the vicinity of said partition-wall, whereby said external ducts for the admission and discharge of the second fluid are insulated hydraulically and thermally both with respect to each other and with respect to said tube bundle.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
US00330114A 1972-02-11 1973-02-06 Heat-exchanger module Expired - Lifetime US3854528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7204689A FR2171869B2 (es) 1972-02-11 1972-02-11

Publications (1)

Publication Number Publication Date
US3854528A true US3854528A (en) 1974-12-17

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ID=9093385

Family Applications (1)

Application Number Title Priority Date Filing Date
US00330114A Expired - Lifetime US3854528A (en) 1972-02-11 1973-02-06 Heat-exchanger module

Country Status (11)

Country Link
US (1) US3854528A (es)
JP (2) JPS4889443A (es)
BE (1) BE795092A (es)
CA (1) CA982548A (es)
CH (1) CH563004A5 (es)
ES (1) ES219931Y (es)
FR (1) FR2171869B2 (es)
GB (1) GB1419685A (es)
IT (1) IT1048297B (es)
LU (1) LU66995A1 (es)
NL (1) NL172787C (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374609A1 (fr) * 1976-12-16 1978-07-13 Westinghouse Electric Corp Echangeur de chaleur a systeme de refroidissement auxiliaire
US4147208A (en) * 1975-10-06 1979-04-03 Sulzer Brothers Limited Heat exchanger
FR2426230A1 (fr) * 1978-05-16 1979-12-14 Belleli Ind Mecc Echangeur de chaleur a contre-courant a deux plaques tubulaires fixes
US4192374A (en) * 1977-02-04 1980-03-11 United Kingdom Atomic Energy Authority Heat exchangers
US4249484A (en) * 1978-01-18 1981-02-10 Commissariat A L'energie Atomique Steam generator with an integrated reheater fed with a liquid metal
US4318441A (en) * 1978-05-19 1982-03-09 Belleli Industrie Meccaniche S.P.A. Counterflow heat exchanger
DE3229294A1 (de) * 1981-08-17 1983-02-24 Westinghouse Electric Corp., 15222 Pittsburgh, Pa. Rohrbuendel-waermetauscher
EP0743499A3 (en) * 1995-05-19 1997-11-26 Huntsman Specialty Chemicals Corporation Shrouded heat exchanger
EP1877716A1 (en) * 2005-04-15 2008-01-16 HAWRANEK, Jerzy Axial heat exchanger
US20080219086A1 (en) * 2007-03-09 2008-09-11 Peter Mathys Apparatus for the heat-exchanging and mixing treatment of fluid media
DE102008053054B4 (de) * 2007-10-26 2016-03-03 Mann + Hummel Gmbh Ölfiltermodul

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497937B1 (fr) * 1981-01-13 1986-03-07 Stein Industrie Dispositif d'echange de chaleur a faisceau de tubes avec lyres de dilatation soustraites aux vibrations
FR2568363B1 (fr) * 1984-07-26 1986-12-26 Novatome Echangeur de chaleur de secours pour le refroidissement du fluide primaire d'un reacteur nucleaire et procede de montage de cet echangeur de chaleur
JPS6275303U (es) * 1985-10-28 1987-05-14

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1790151A (en) * 1928-02-29 1931-01-27 Struthers Wells Company Heat exchanger
US2855449A (en) * 1954-03-12 1958-10-07 Phillips Petroleum Co Method of and apparatus for the acid-catalyzed alkylation of hydrocarbons
US3732922A (en) * 1970-03-06 1973-05-15 Stein Industrie Heat-exchanger module

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1790151A (en) * 1928-02-29 1931-01-27 Struthers Wells Company Heat exchanger
US2855449A (en) * 1954-03-12 1958-10-07 Phillips Petroleum Co Method of and apparatus for the acid-catalyzed alkylation of hydrocarbons
US3732922A (en) * 1970-03-06 1973-05-15 Stein Industrie Heat-exchanger module

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147208A (en) * 1975-10-06 1979-04-03 Sulzer Brothers Limited Heat exchanger
US4235284A (en) * 1976-12-16 1980-11-25 The United States Of America As Represented By The United States Department Of Energy Heat exchanger with auxiliary cooling system
FR2374609A1 (fr) * 1976-12-16 1978-07-13 Westinghouse Electric Corp Echangeur de chaleur a systeme de refroidissement auxiliaire
US4192374A (en) * 1977-02-04 1980-03-11 United Kingdom Atomic Energy Authority Heat exchangers
US4249484A (en) * 1978-01-18 1981-02-10 Commissariat A L'energie Atomique Steam generator with an integrated reheater fed with a liquid metal
US4343351A (en) * 1978-05-16 1982-08-10 Riccardo Belleli Counterflow heat exchanger
FR2426230A1 (fr) * 1978-05-16 1979-12-14 Belleli Ind Mecc Echangeur de chaleur a contre-courant a deux plaques tubulaires fixes
US4318441A (en) * 1978-05-19 1982-03-09 Belleli Industrie Meccaniche S.P.A. Counterflow heat exchanger
DE3229294A1 (de) * 1981-08-17 1983-02-24 Westinghouse Electric Corp., 15222 Pittsburgh, Pa. Rohrbuendel-waermetauscher
EP0743499A3 (en) * 1995-05-19 1997-11-26 Huntsman Specialty Chemicals Corporation Shrouded heat exchanger
EP1877716A1 (en) * 2005-04-15 2008-01-16 HAWRANEK, Jerzy Axial heat exchanger
EP1877716A4 (en) * 2005-04-15 2013-04-10 Rehact Ab AXIAL THERMAL EXCHANGER
US20080219086A1 (en) * 2007-03-09 2008-09-11 Peter Mathys Apparatus for the heat-exchanging and mixing treatment of fluid media
US8794820B2 (en) * 2007-03-09 2014-08-05 Sulzer Chemtech Ag Apparatus for the heat-exchanging and mixing treatment of fluid media
DE102008053054B4 (de) * 2007-10-26 2016-03-03 Mann + Hummel Gmbh Ölfiltermodul

Also Published As

Publication number Publication date
NL172787C (nl) 1983-10-17
GB1419685A (es) 1975-12-31
FR2171869A2 (es) 1973-09-28
NL172787B (nl) 1983-05-16
JPS4889443A (es) 1973-11-22
IT1048297B (it) 1980-11-20
CH563004A5 (es) 1975-06-13
NL7301835A (es) 1973-08-14
CA982548A (en) 1976-01-27
BE795092A (fr) 1973-05-29
LU66995A1 (es) 1973-04-19
ES219931Y (es) 1977-02-16
JPS5752798A (en) 1982-03-29
FR2171869B2 (es) 1976-07-23
JPS5823559B2 (ja) 1983-05-16
ES219931U (es) 1976-09-16

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