EP0809081B1 - Echangeur de chaleur hybride à plaques - Google Patents

Echangeur de chaleur hybride à plaques Download PDF

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Publication number
EP0809081B1
EP0809081B1 EP97250157A EP97250157A EP0809081B1 EP 0809081 B1 EP0809081 B1 EP 0809081B1 EP 97250157 A EP97250157 A EP 97250157A EP 97250157 A EP97250157 A EP 97250157A EP 0809081 B1 EP0809081 B1 EP 0809081B1
Authority
EP
European Patent Office
Prior art keywords
plates
plate
exchanger according
plate heat
comb
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
EP97250157A
Other languages
German (de)
English (en)
Other versions
EP0809081A3 (fr
EP0809081A2 (fr
Inventor
Osama Dipl.-Ing. Nasser
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.)
APV Thermotech GmbH
Original Assignee
APV Thermotech GmbH
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
Priority claimed from DE19620543A external-priority patent/DE19620543C2/de
Application filed by APV Thermotech GmbH filed Critical APV Thermotech GmbH
Publication of EP0809081A2 publication Critical patent/EP0809081A2/fr
Publication of EP0809081A3 publication Critical patent/EP0809081A3/fr
Application granted granted Critical
Publication of EP0809081B1 publication Critical patent/EP0809081B1/fr
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
    • 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
    • F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
    • 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
    • F28D9/0031—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 paired plates touching each other
    • F28D9/0037—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 paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • 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
    • F28F9/0075—Supports for plates or plate assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements
    • F28F2275/205—Fastening; Joining with threaded elements with of tie-rods

Definitions

  • the invention relates to a plate heat exchanger from plate packs with a variety from under Formation of wavy channels and tubular channels embossed and / or corrugated stainless steel plates in which countercurrent heat transfer, flowing Media can be moved past each other, and the plate packs through pressure plates and between them transverse tie rod screws guided in screw sleeves are held together.
  • Such plate heat exchangers serve two separate media with different temperatures to lead past each other.
  • the media for example a hot gas and a colder coolant, are in the so-called cross countercurrent passed each other. Between the corrugated sheets and heat transfer takes place in the hollow walls instead of. Since streaming media can be quite aggressive and corrosion of the plate packs are they are made of stainless steel.
  • the object of the present invention is the stainless steel content in the case of a plate heat exchanger described type to reduce the processing facilitate and ensure functional safety.
  • the task is solved in that the wavy Channels on both sides through a hood and an end plate are covered, the corrugated channels belonging to each other Channels and the tubular channels in the area of the hood closed at the end by stainless steel comb plates are, the comb plates with comb bindings the face plates are welded, the plate packs on both sides with relatively thin stainless steel Side plates are sealed and the side plates held by pressure holding plates made of structural steel and are supported.
  • the stainless steel parts serve only the actual corrosion protection, while the strength and stability tasks through so-called black material, that means structural steel like ST37, ST52, etc. are manufactured.
  • the thin-walled Stainless steel plates with a wall thickness of approx. 0.8 mm existing plate packs are also thin-walled Stainless steel side plates welded into one unit. Because the pressure holding plates with this unit they are not welded but screwed together expand freely when exposed to heat. This allows very high temperature differences between both between the two media as well as between the medium and the environment.
  • Such a plate heat exchanger can thereby be the same Functional reliability and corrosion resistance also for media with very high. Temperatures and temperature differences be used.
  • the plate heat exchanger 10 shown in FIG. 1 consists of a variety of plate packs 11, such as they are indicated in FIG. 3.
  • the plate packs 11 are held together by pressure holding plates 20, as shown in the lower parts of Figures 1 and 3 are.
  • the plate packs 11 consist of embossed and / or corrugated plates, the wavy channels 31 and form tubular channels 32, as shown in FIG Are shown in detail.
  • the wavy channels 31 are through a hood 14 and an end plate 15 covered.
  • the end plate 15 is held in rectangular flanges 13, which in turn with a Rectangular lid 12 are connected.
  • the rectangular lid 12 is provided with a pipe-side connection 35.
  • the rectangular lid 12 consists of normal Mild steel and is thin on the inside Cover lining 16 made of stainless steel.
  • the hood 14 is provided with a connecting flange 19 on the shaft side.
  • the shaft side is in the area the hood 14 through a comb plate 17 from the tube side separated.
  • the comb plates 17 are welded 18 in the area of a comb 33 with the welded free end of the end plate 15.
  • the hood 14 is also welded to the end plate 15.
  • the Comb plate 17 is made of stainless steel and is relatively thin executed against the face plate 15. It just points about 1/4 the thickness of the end plate 15.
  • a vacuum can occur in the hoods 14; she are therefore, as shown in Figure 3, with inside Support tubes 38 reinforced.
  • the support tubes 38 are in welds 39 connected with support tube reinforcement plates 37.
  • the Support tube reinforcement plates 37 are the support tubes 38 held on the relatively thin side plates 22.
  • the Side plates 22 are made of stainless steel and are, like the figure 3 shows in its lower part of the massive Pressure holding plates 20 held from a normal Structural steel exist.
  • FIG. 5 further shows, are in front of the plate packs 11 extending screw sleeves 21 through the side plates 22 out.
  • the screw sleeves 21 are at the ends with weld seams 26 with the relatively thin side plates 22 welded.
  • the side plates 22 consist of Stainless steel and are practically just a cladding for the stronger pressure holding plates arranged behind 20, made of normal structural steel, so-called black material, are made.
  • Tension bolts 23 are through the screw sleeves 21 led the opposing pressure plates 20 via nuts 24 against the side plates 22 or hold the plate packs 11. Support the nuts 24 itself over lugs 25 in the holes 36 of the pressure holding plates 20.
  • the holes 36 have a larger diameter than the outside diameter the screw sleeves 21 corresponds to the pressure holding plates 20 of the welds 26 of the stainless steel side plates 22 to be kept free.
  • FIGS. 6 and 7 show, are between the plate packs 11 and the rectangular flanges 13 lateral Deflection plates 27 and 29 are provided.
  • the other free ends are in the area of the rectangular flange 13 freely in V-shaped deflection profiles 28 held.
  • the baffles 27 are thereby with one end freely movable and can compress.
  • the second, somewhat smaller baffles 29 are on held at one end by the comb-shaped plate packs 11. On the other hand, it is with a weld 30 connected with the same screw sleeves 21 the larger baffles 27.

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  • 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)

Claims (12)

  1. Echangeur de chaleur à plaques composé de paquets de plaques (11) avec une pluralité de plaques en acier spécial (34) estampées et/ou ondulées en formant des canaux ondulés (31) et des canaux en forme de tubes (32), dans lesquelles des milieux en circulation, devant transmettre la chaleur peuvent passer l'un à côté de l'autre à contre-courant de manière croisée, et les paquets de plaques (11) sont maintenus ensemble par des plaques de maintien de pression (20) et entre ceux-ci par des vis de tige d'ancrage (23) transversales introduites dans des douilles filetées (21), caractérisé en ce que les canaux ondulés (31) sont chacun recouverts des deux côtés par un capot (14) et une tôle frontale (15), les canaux faisant chaque fois partie des canaux ondulés (31) et des canaux en forme de tube (32) étant fermés aux extrémités au niveau du capot (14) par des tôles d'étanchéité (17) composées d'acier spécial, les tôles d'étanchéité (17) étant soudées avec les tôles frontales (15) par des encastrements en forme de peigne (33), les paquets de plaques (II) étant étanchéifiés des deux côtés avec des tôles latérales (22) relativement minces, composées d'acier spécial et les tôles latérales (22) étant maintenues et supportées par des plaques de maintien de pression (20) composées d'acier de construction.
  2. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que les plaques de maintien de pression (20) sont maintenues contre les tôles latérales (22) par des vis de tige d'ancrage (23) guidées dans les douilles filetées (21).
  3. Echangeur de chaleur à plaques selon les revendications 1 et 2, caractérisé en ce que les douilles filetées (21) sont soudées avec les tôles latérales (22).
  4. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que les tôles frontales (15) recouvrant les canaux ondulés (31) sont maintenues dans des brides rectangulaires (13), qui sont à leur tour reliées avec un couvercle rectangulaire (12).
  5. Echangeur de chaleur à plaques selon la revendication 4, caractérisé en ce que des déflecteurs (27, 29) sont prévus entre les paquets de plaques (11) et les brides rectangulaires (13) opposées.
  6. Echangeur de chaleur à plaques selon la revendication 5, caractérisé en ce que les déflecteurs (29) sont en forme de peigne et soudés chaque fois avec une douille filetée (21).
  7. Echangeur de chaleur à plaques selon les revendications 5 et 6, caractérisé en ce que un premier déflecteur (27) est soudé à une extrémité libre avec une douille filetée (21) et est maintenu non relié à son autre extrémité libre dans un profilé de déviation (28) en forme de V.
  8. Echangeur de chaleur à plaques selon les revendications 5 et 6, caractérisé en ce qu'un second déflecteur (29) est soudé à une extrémité libre avec une douille filetée (21) et est maintenu à son autre extrémité libre par un paquet de plaques (11) en forme de peigne.
  9. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que les tôles d'étanchéité (17) sont découpées selon un procédé de soudage à l'arc au plasma
  10. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que les plaques de maintien de pression (20) et les tôles latérales (22) ne sont pas reliées les unes avec les autres.
  11. Echangeur de chaleur à plaques selon la revendication 1, caractérisé en ce que des tubes formant support (38) sont prévus dans les capots (14).
  12. Echangeur de chaleur à plaques selon la revendication 11, caractérisé en ce que les tubes formant support (38) prévus dans les capots (14) sont maintenus sur les tôles latérales (22) à parois relativement minces avec des tôles de renforcement des tubes formant support (37).
EP97250157A 1996-05-22 1997-05-16 Echangeur de chaleur hybride à plaques Expired - Lifetime EP0809081B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19620543 1996-05-22
DE19620543A DE19620543C2 (de) 1996-04-19 1996-05-22 Hybrid-Plattenwärmetauscher

Publications (3)

Publication Number Publication Date
EP0809081A2 EP0809081A2 (fr) 1997-11-26
EP0809081A3 EP0809081A3 (fr) 1999-03-10
EP0809081B1 true EP0809081B1 (fr) 2004-01-28

Family

ID=7794973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97250157A Expired - Lifetime EP0809081B1 (fr) 1996-05-22 1997-05-16 Echangeur de chaleur hybride à plaques

Country Status (2)

Country Link
EP (1) EP0809081B1 (fr)
AT (1) ATE258673T1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9080815B2 (en) 2008-06-18 2015-07-14 Gesmex Gmbh Conversion set for a tube bundle heat exchanger

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1751976A1 (de) * 1968-08-27 1971-09-16 Linde Ag Plattenwaermeaustauscher
DE4031436A1 (de) * 1990-10-04 1992-04-09 Bavaria Anlagenbau Gmbh Plattenwaermetauscher-modul
GB9104156D0 (en) * 1991-02-27 1991-04-17 Rolls Royce & Ass Heat exchanger
FR2702978B1 (fr) * 1993-03-26 1995-07-13 Barriquand Echangeurs Procédé d'assemblage de brides ou analogues de raccordement sur un faisceau d'échangeur et échangeur en faisant application.
DE4422283C1 (de) * 1994-06-25 1995-09-28 Balcke Duerr Ag Verfahren zum Verschweißen von kammartigen Abdichtleisten an Plattenwärmetauschern

Also Published As

Publication number Publication date
ATE258673T1 (de) 2004-02-15
EP0809081A3 (fr) 1999-03-10
EP0809081A2 (fr) 1997-11-26

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