EP0086162B1 - Echangeur thermique à faisceau tubulaire métallique pour hautes températures - Google Patents

Echangeur thermique à faisceau tubulaire métallique pour hautes températures Download PDF

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Publication number
EP0086162B1
EP0086162B1 EP19830400271 EP83400271A EP0086162B1 EP 0086162 B1 EP0086162 B1 EP 0086162B1 EP 19830400271 EP19830400271 EP 19830400271 EP 83400271 A EP83400271 A EP 83400271A EP 0086162 B1 EP0086162 B1 EP 0086162B1
Authority
EP
European Patent Office
Prior art keywords
gas
enclosure
pipes
exchanger
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
EP19830400271
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0086162A1 (fr
Inventor
Paul Landet
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.)
Creusot Loire SA
Original Assignee
Creusot Loire SA
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 Creusot Loire SA filed Critical Creusot Loire SA
Publication of EP0086162A1 publication Critical patent/EP0086162A1/fr
Application granted granted Critical
Publication of EP0086162B1 publication Critical patent/EP0086162B1/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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide 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
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
    • F28D7/0091—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium the supplementary medium flowing in series through the units
    • 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
    • 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

Definitions

  • the present invention relates to a heat exchanger comprising an enclosure provided with an inlet and an outlet for a gas and in which are housed metal tubes which channel hot gas and the ends of which terminate in tubular plates which close said enclosure where internal partitions are housed which force the gas to flow alternately at the center and at the periphery of the enclosure.
  • Patent FR-A-2 183 613 discloses an exchanger of the above type. This exchanger has only one inlet and one outlet for fluid located respectively near the tube plates, the fluid flowing in one direction, from the inlet to the outlet.
  • the object of the present invention is to provide a gas-gas heat exchanger in which the circulation of the gas to be heated is such that there is a cooling of the tubular plates and a symmetrical evolution of the temperatures from the tubular plates towards the central outlet. gas to be heated as well as a uniform circumferential distribution of temperatures in any plane perpendicular to the axis of the exchanger. This results in the implementation of thin tubular plates, limited thermal stresses and the use of steels with little or no refractory.
  • This exchanger is provided with several outlets making it possible to take the gas heated at different temperatures.
  • the exchanger is characterized by the fact that it includes a set of inlet pipes situated near each tube plate and a set of outlet pipes located between said sets of inlet pipes so that there are two streams of fluid flowing in opposite directions.
  • the exchanger has intermediate outlets making it possible to draw gas between the inlet pipes and the outlet pipes.
  • each tubular plate is joined to the rest of the enclosure by a bellows expansion compensator.
  • At least one partition is held a deflector having a shape of revolution and which deflects the gas to be heated.
  • the exchanger according to the invention is in particular intended for the recovery at high temperature of the heat of the combustion fumes of ovens and of gasifiers to allow the heating of combustion or drying air.
  • the single figure is a longitudinal section of the exchanger according to the invention.
  • the exchanger according to the invention comprises a plurality of metal tubes 1 which extend parallel to the longitudinal axis 11 of the exchanger.
  • the ends of these tubes end on tubular plates 21 and 22 to which they are welded.
  • Sleeves are mounted at the ends of the tubes to protect the welds.
  • the tubular plates 21 and 22 form part of a closed enclosure 2 in which is housed the bundle of tubes 1.
  • a current of hot gas or hot smoke is brought by a conduit 31 to the entrances of the tubes flush with the upstream tubular plate 21.
  • the outlets of the tubes flush with the downstream tubular plate 22 open into a conduit 32 which channels the gas at the outlet of the exchanger to evacuate it.
  • the enclosure is composed of ferrules 25, 26, 27 welded together so as to form a conduit or a chamber closed at its ends by the tubular plates 21 and 22.
  • Each tubular plate 21 or 22 is joined to the ferrule 25 or 26 of the enclosure by means of a bellows expansion compensator 23 or 24.
  • the enclosure 2 comprises, near the upstream tubular plate 21, a first set of inlet pipes 41 which are mounted laterally and open inside by inlet ports 411. It also comprises near the downstream tubular plate 22, a second set of inlet pipes 42 which are mounted laterally and which open inside by inlet openings 421. These inlet pipes 41 and 42 serve to introduce a second stream of gas into the enclosure. intended to be heated by convection. Between the sets of inlet pipes, in the middle part, the enclosure comprises a set of outlet pipes 43 which are mounted laterally and open out through orifices 431. Between each set of inlet pipes 41 or 42 and the set of outlet pipes 43, the enclosure comprises a set of intermediate pipes 44 and 45 which are mounted laterally and which open inside through orifices 441 and 451. These intermediate pipes allow the heated gas to be taken at intermediate temperatures.
  • each set has three tubes arranged at 120 ° from one another.
  • Partitions 51 and 52 are mounted inside the enclosure, perpendicular to the tubes which pass through them.
  • Each partition marked 51 provides a central opening and has the shape of a flat ring crossed by a part of the bundle tubes.
  • Each partition marked 52 provides an annular opening with the enclosure for the passage of gas.
  • the partitions 51 and 52 are arranged alternately so as to form baffles for the flow of gas which passes alternately through the central openings of the partitions 51 and through the peripheral annular openings formed by the partitions 52.
  • Each extreme partition 51 with central opening line is located closer to the nearest tube plate 21 than the inlet pipes 31.
  • This partition is secured to a deflector 53 which is fixed to the enclosure 2 beyond the inlet pipes 41.
  • This deflector forms an annular space into which open the orifices 411. This space is open towards the tube plate 21 so as to divert the gas flow towards the space between the partition 51 and said tube plate.
  • One of the partitions 52 providing an annular opening for the gas is joined to a flange 54 of flared shape, in the direction of flow of the gas, and which is fixed inside the enclosure.
  • This collar forms an annular chamber into which the lateral orifices 441 of the intermediate tubes 44 open.
  • This collar is provided with lateral orifices 541 which allow the passage of gas towards the outlet tubes 43.
  • partitions are integral with ferrules of revolution such as the deflectors 53 or 54, these ferrules, welded to the enclosure, allowing the expansions.
  • Other partitions are held by fasteners allowing radial expansions.
  • the tubes pass with clearance in the partitions 51 and 52.
  • the tube bundle is not supported by the tubular plates but it is supported by the partitions 51 and 52 which are vertical.
  • the conduits 31 and 32 are insulated by a layer of insulation.
  • the exchanger is also insulated by an insulating layer 4 enveloping it externally.
  • the enclosure 2 can be protected internally, in its middle part, by an insulating sleeve of metallic or refractory insulation 5 fixed on the internal wall.
  • the high temperature gas which arrives on the upstream tube plate 21 enters the tubes 1 where it circulates in the direction of the arrows. It leaves the tubes 1 to be evacuated through the conduit 32.
  • the relatively cold gas that one seeks to heat is brought into the enclosure by the inlet pipes 41 and 42. It circulates around the tubes 1 in two opposite streams (shown by the arrows). Each current flows in a zigzag, from the tubular plate towards the middle of the exchanger, passing alternately through the central openings formed in the partitions 51 and through the peripheral openings formed by the partitions 52. After reheating in contact with the tubes 1, the hot gas is evacuated through the outlet pipes 43. In the process, gas at intermediate temperature is taken off through the intermediate pipes 44 and 45.
  • the two tubular plates 21 and 22 are, on the inside, in contact with the cold gas and the expansions are effected symmetrically from the median plane passing through the axes of the outlet pipes.

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)
EP19830400271 1982-02-08 1983-02-08 Echangeur thermique à faisceau tubulaire métallique pour hautes températures Expired EP0086162B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8201959A FR2521275A1 (fr) 1982-02-08 1982-02-08 Echangeur thermique a faisceau tubulaire metallique pour hautes temperatures
FR8201959 1982-02-08

Publications (2)

Publication Number Publication Date
EP0086162A1 EP0086162A1 (fr) 1983-08-17
EP0086162B1 true EP0086162B1 (fr) 1985-08-28

Family

ID=9270746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830400271 Expired EP0086162B1 (fr) 1982-02-08 1983-02-08 Echangeur thermique à faisceau tubulaire métallique pour hautes températures

Country Status (3)

Country Link
EP (1) EP0086162B1 (enrdf_load_stackoverflow)
DE (1) DE3360632D1 (enrdf_load_stackoverflow)
FR (1) FR2521275A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643303A1 (de) * 1986-12-18 1988-06-30 Uhde Gmbh Vorrichtung zum waermetausch, insbesondere zwischen synthesegas- und kesselspeisewasser

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585949B1 (en) 1996-04-03 2003-07-01 Cabot Corporation Heat exchanger
US6024960A (en) * 1998-04-17 2000-02-15 Otto Torbjorn Hansen And Marianne Hansen Rose-hip formulations as anti-inflammatory natural medicine for alleviating/reducing symptoms associated with inflammation and arthritis
DE10328163A1 (de) * 2003-06-24 2005-01-13 Daimlerchrysler Ag Wärmetauscher mit einem Gehäuse
IT202300010491A1 (it) * 2023-05-24 2024-11-24 Milano Politecnico Apparecchiatura a fascio tubiero e mantello a doppia zona, relativo impianto contenente detta apparecchiatura e processo per produrre un prodotto chimico in detto impianto
CN116772616A (zh) * 2023-05-31 2023-09-19 常熟风范电力设备股份有限公司 一种余热吸收结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301142C (enrdf_load_stackoverflow) *
DE845052C (de) * 1942-03-27 1952-07-28 Basf Ag Waermeaustauscher
AT278877B (de) * 1966-06-27 1970-02-10 Waagner Biro Ag Rohrbündelwärmeaustauscher
FR1585849A (enrdf_load_stackoverflow) * 1968-10-21 1970-01-30
FR2183613A1 (en) * 1972-05-12 1973-12-21 Trepaud Pierre Tubes for heat exchanger - limited to cross flow region of shell given additional support by false baffles
NL7502562A (nl) * 1975-03-04 1976-09-07 Breda Backer Rueb Maschf Warmtewisselaar voor gasvormige media, in het bijzonder aggresieve gassen.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643303A1 (de) * 1986-12-18 1988-06-30 Uhde Gmbh Vorrichtung zum waermetausch, insbesondere zwischen synthesegas- und kesselspeisewasser

Also Published As

Publication number Publication date
DE3360632D1 (en) 1985-10-03
FR2521275A1 (fr) 1983-08-12
EP0086162A1 (fr) 1983-08-17
FR2521275B1 (enrdf_load_stackoverflow) 1984-06-01

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