EP1103774A1 - Plattenwärmetauscher in einem unter Druck stehendem Gehäuse - Google Patents

Plattenwärmetauscher in einem unter Druck stehendem Gehäuse Download PDF

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Publication number
EP1103774A1
EP1103774A1 EP00403266A EP00403266A EP1103774A1 EP 1103774 A1 EP1103774 A1 EP 1103774A1 EP 00403266 A EP00403266 A EP 00403266A EP 00403266 A EP00403266 A EP 00403266A EP 1103774 A1 EP1103774 A1 EP 1103774A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
pressurization
envelope
exchanger according
thermally insulating
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.)
Withdrawn
Application number
EP00403266A
Other languages
English (en)
French (fr)
Inventor
Francois Fuentes
Marc Wagner
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP1103774A1 publication Critical patent/EP1103774A1/de
Withdrawn legal-status Critical Current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
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0006—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the plate-like or laminated conduits being enclosed within a pressure vessel
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
    • F28D9/0068—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10—Particular pattern of flow of the heat exchange media
    • F28F2250/108—Particular pattern of flow of the heat exchange media with combined cross flow and parallel flow
    • 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

  • the present invention relates to an exchanger thermal plates of the type comprising: a body of generally parallelepipedal exchanger which has a stack of general orientation plates parallels delimiting between them at least two series of passages for fluids, and spacer bars of closure disposed between at least some of the plates; fluid inlet / outlet boxes that communicate with the respective series of passages; supply lines and discharge of fluids which communicate with boxes; and a pressurization envelope surrounding the exchanger body, traversed by said pipes and connected to a pressurization gas supply line.
  • DE-A-2948123 describes a regenerator exchanger with the interior of a pressurization envelope in which the space between the plates and / or between the envelope and a scaffolding is / are filled with linings stabilized by thermally insulating material.
  • the heat exchangers of the aforementioned type are, generally used when at least one of the fluids treated is under pressure. Indeed, because of their geometry, the plate heat exchanger bodies resist poorly pressure, the plates tending to bulge and rupture or to damage the welded connections between the elements of the exchanger body.
  • the pressurization envelope allows to balance the forces exerted by the fluid (s) under pressure.
  • the object of the invention is to make the manufacture of shell and tube heat exchangers pressurization.
  • the invention relates to an exchanger thermal plate of the aforementioned type, characterized in that only one or more thermally insulating material (s) is / are arranged between the exchanger body and the pressurization jacket.
  • the heat exchanger 1 shown in the drawing essentially comprises a plate exchanger body 2, a metallic pressurization jacket 3 and a source external pressurized nitrogen 4.
  • Exchanger 1 is intended to heat to a high temperature T1, for example of the order of 300 to 650 ° C, a first fluid initially at a temperature close to room temperature, for example indirect heat exchange against the current with a second fluid initially in the vicinity of temperature T1.
  • the exchanger body 2 of general shape parallelepiped, has the usual structure of bodies plate heat exchanger used for high temperatures. So it consists of a stack of plates stamped rectangulars with general orientations vertical and parallel, which define two series of alternating passages respectively for the two fluids. Each plate has corrugations 5 and a flat peripheral area. Spacer bars 6, which delimit the passages, are interposed between the zones marginal of successive plates, on all their periphery with the exception of entry / exit windows fluids.
  • the cut is made according to a plan vertical which passes through a fluid passage intended for the first fluid. Bars 6 do not leave free, in such passage, that two superimposed windows, namely a window lower 7 fluid inlet and an upper window 8 outlet of this fluid. Each window 7, 8 extends over the right half width of the exchanger body.
  • Ripple 5 of the same passage consists of a 5A main heat exchange ripple, at vertical generators, extended below and above by two oblique undulations: a lower undulation 5B of distribution over the entire width of the 5A ripple of the fluid from the inlet window 7, and an undulation upper 5C which directs on the exit window 8 the fluid from the 5A ripple.
  • the remaining passages of the exchanger body have a analogous structure, the oblique undulations being relative the second fluid inlet / outlet windows, which extend across the left half width of the body exchanger.
  • Each row of entry / exit windows such as windows 7 or 8 is topped with an input / output box semi-cylindrical 9 to 12 welded to the body 2.
  • an input / output box semi-cylindrical 9 to 12 welded to the body 2.
  • two boxes 9 and 10 are juxtaposed on the underside of this body, and the other two boxes 11 and 12 are juxtaposed on the upper side of the body.
  • Each box 9 to 12 is connected by welding a respective pipe 13 to 16 fluid intake or discharge. These four lines are vertical and have their axes contained in the plane of the drawing.
  • the envelope 3 completely surrounds the body 2, at distance from it. It is essentially made up a ferrule 17 of generally cylindrical shape, axis X-X vertical contained in the drawing plane, supplemented by a two hemispherical bottoms, lower 18 and upper 19.
  • the bottom 18 has two holes 19 crossed with a watertight seal by the lines 13 and 14, respectively. Each of these pipes is fixed by welding in the corresponding hole.
  • the upper bottom 19 has two pipes 20 in protruding upwards, as well as a central orifice 21 provided a plug 22.
  • Each pipe 15, 16 crosses with clearance the associated tubing 20, and a cable gland 23 made of material thermally insulating seal the gap which separates them while allowing a sliding of the pipe in the tubing.
  • a cable gland 23 made of material thermally insulating seal the gap which separates them while allowing a sliding of the pipe in the tubing.
  • the ferrule 17 has an orifice 24 to which is connected a gas nitrogen supply line 25 under pressure.
  • This line 25 starts from the evaporator 4 and comprises, from this, a heating coil 26, a regulator 27 and a stop valve 28.
  • the pressure downstream of the regulator is regulated to a value substantially equal to the highest pressure of the fluids circulating in the exchanger body, or greater than this pressure.
  • the pressurizing gas can be a other non-corrosive gas, including dry air.
  • the exchanger 1 also includes support means of the body 2 in the envelope 3. These means consist by several pairs of angles 29, 30 arranged head to tail.
  • the vertical branch of each angle iron 29 is fixed on a lateral surface of the body 2, in the region lower of it, while that of each angle 30 is fixed to the inner wall of the ferrule 17.
  • the horizontal part of each angle 29 rests on that of the associated angle 30, with the interposition of a plate 31 of thermally insulating material.
  • a material insulator 32 in bulk constituted for example by perlite.
  • the envelope may be fitted with vibrators, or means for placing under temporary vacuum, as known per se.
  • the envelope 3 is effectively thermally insulated from body 2, and it can therefore be produced relatively inexpensively and standardized.
  • perlite does not interfere with the envelope 3 pressurization. In addition, it ensures of itself part of the support and positioning of the body 2 in the envelope 3. The thermal bridges between the body 2 and envelope 3 are completely removed in the hot region of the exchanger body, and are limited to welds on lines 13 and 14, which are located in the region near room temperature.
  • upper bottom 19 may be made at least in part of a material different from that of the shell 17 and of the lower bottom 18, especially a metal alloy having better mechanical resistance at high temperature.
  • the thermal insulation of the envelope 3 can be made by swaddling the body 2 in a insulating material in strip or sheet.
  • the invention also applies to the case of exchangers cryogenic plates, which generally consist of aluminum or aluminum alloy and which are assembled in a single operation by brazing in the oven.

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)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP00403266A 1999-11-24 2000-11-22 Plattenwärmetauscher in einem unter Druck stehendem Gehäuse Withdrawn EP1103774A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9914796A FR2801376B1 (fr) 1999-11-24 1999-11-24 Echangeur thermique a plaques muni d'une enveloppe de pressurisation
FR9914796 1999-11-24

Publications (1)

Publication Number Publication Date
EP1103774A1 true EP1103774A1 (de) 2001-05-30

Family

ID=9552496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00403266A Withdrawn EP1103774A1 (de) 1999-11-24 2000-11-22 Plattenwärmetauscher in einem unter Druck stehendem Gehäuse

Country Status (2)

Country Link
EP (1) EP1103774A1 (de)
FR (1) FR2801376B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501207A1 (de) * 2005-07-28 2006-07-15 Zweimueller Peter Dipl Ing Vorrichtung zur erzeugung von reinem dampf
FR2995672A1 (fr) * 2012-09-19 2014-03-21 Air Liquide Echangeur de chaleur et procede d'installation d'une unite de separation de gaz comprenant de tels echangeurs de chaleur
FR3100609A1 (fr) * 2019-09-09 2021-03-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif, installation et procédé d’échange de chaleur.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948123A1 (de) * 1979-11-29 1981-06-04 Linde Ag, 6200 Wiesbaden Waermetauscher
WO1994021979A1 (fr) * 1993-03-17 1994-09-29 Faudat Concept Dispositif d'echange thermique et procede de refroidissement de l'enceinte d'un tel dispositif
WO1998025091A1 (en) * 1996-12-02 1998-06-11 Cominco Engineering Services Ltd. Pressure reducing heat exchanger and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948123A1 (de) * 1979-11-29 1981-06-04 Linde Ag, 6200 Wiesbaden Waermetauscher
WO1994021979A1 (fr) * 1993-03-17 1994-09-29 Faudat Concept Dispositif d'echange thermique et procede de refroidissement de l'enceinte d'un tel dispositif
WO1998025091A1 (en) * 1996-12-02 1998-06-11 Cominco Engineering Services Ltd. Pressure reducing heat exchanger and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT501207A1 (de) * 2005-07-28 2006-07-15 Zweimueller Peter Dipl Ing Vorrichtung zur erzeugung von reinem dampf
FR2995672A1 (fr) * 2012-09-19 2014-03-21 Air Liquide Echangeur de chaleur et procede d'installation d'une unite de separation de gaz comprenant de tels echangeurs de chaleur
WO2014044943A1 (fr) * 2012-09-19 2014-03-27 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Échangeur de chaleur et procédé d'installation d'une unité de séparation de gaz comprenant de tels échangeurs de chaleur
FR3100609A1 (fr) * 2019-09-09 2021-03-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif, installation et procédé d’échange de chaleur.

Also Published As

Publication number Publication date
FR2801376A1 (fr) 2001-05-25
FR2801376B1 (fr) 2002-02-01

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