EP0809081A2 - Echangeur de chaleur hybride à plaques - Google Patents

Echangeur de chaleur hybride à plaques Download PDF

Info

Publication number
EP0809081A2
EP0809081A2 EP97250157A EP97250157A EP0809081A2 EP 0809081 A2 EP0809081 A2 EP 0809081A2 EP 97250157 A EP97250157 A EP 97250157A EP 97250157 A EP97250157 A EP 97250157A EP 0809081 A2 EP0809081 A2 EP 0809081A2
Authority
EP
European Patent Office
Prior art keywords
plates
plate
heat exchanger
comb
exchanger according
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.)
Granted
Application number
EP97250157A
Other languages
German (de)
English (en)
Other versions
EP0809081A3 (fr
EP0809081B1 (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
Otto Heat Heizungs- Energie- und Anlagentechnik & Co KG GmbH
OTTO HEAT HEIZUNGS
Otto Heat Heizungs- Energie- und Anlagentechnik & Co KG 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 Otto Heat Heizungs- Energie- und Anlagentechnik & Co KG GmbH, OTTO HEAT HEIZUNGS, Otto Heat Heizungs- Energie- und Anlagentechnik & Co KG GmbH filed Critical Otto Heat Heizungs- Energie- und Anlagentechnik & Co KG 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, consisting of a plate pack with a plurality of embossed and / or corrugated plates with the formation of undulating and tubular channels, in which heat-transferring, flowing media can be passed past one another in cross-countercurrent, and the plate packs through pressure-holding plates and between them, in screw sleeves guided tie bolts are held together.
  • Such plate heat exchangers are generally known and are used to pass two separate media with different temperatures past one another.
  • the media for example a hot gas and a colder cooling liquid, are guided past one another in the so-called cross-counterflow.
  • a heat transfer takes place between the corrugated sheets and the hollow walls. Since the flowing media are usually quite aggressive and corrosion of the plate packs they are made of stainless steel - but stainless steel is relatively expensive and extremely difficult to machine and process.
  • the object of the present invention is to reduce the proportion of stainless steel in a plate heat exchanger of the type described at the outset, to facilitate processing and to ensure functional reliability.
  • the object is achieved in that the corrugated channels and the tubular channels are separated from one another by comb plates, the comb plates are welded to the end plates via comb bindings, the plate packs are sealed on both sides with side plates, the side plates are held and supported by pressure-maintaining plates and the screw sleeves with the side plates are welded.
  • the stainless steel parts serve only the actual corrosion protection, while the strength and stability tasks can be made by so-called black material, i.e. structural steel such as ST37, ST52 etc.
  • the plate package consisting of thin-walled plates with a wall thickness of approx. 0.8 mm is welded to a unit with thin-walled side plates.
  • the plate heat exchanger 10 shown in FIG. 1 consists of a plurality of plate packs 11, as indicated in FIG. 3.
  • the plate packs 11 are held together by pressure holding plates 20, as shown in the lower parts of FIGS. 1 and 3.
  • the plate packs 11 consist of embossed and / or corrugated plates which form corrugated channels 31 and tubular channels 32, as shown in detail in FIG. 5.
  • the so-called shaft side which consists of corrugated and welded plates 34, extends transversely to the so-called pipe side, which consists of tubular plates 34.
  • the wavy channels 31 are covered by a hood 14 and an end plate 15.
  • 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 cover 12 consists of normal structural steel and is provided on the inside with a thin cover lining 16 made of stainless steel.
  • the hood 14 is provided with a connecting flange 19 on the shaft side.
  • the shaft side in the area of the hood 14 is separated from the pipe side by a comb plate 17.
  • the comb plate 17 is welded to the free end of the end plate 15 via a weld seam 18 in the region of a comb connection 33.
  • the hood 14 is also welded to the face plate 15.
  • the comb plate 17 is made of stainless steel and is made relatively thin compared to the end plate 15. It has only about a quarter of the thickness of the end plate 15.
  • a negative pressure can occur in the hoods 14; therefore, as shown in FIG. 3, they are reinforced with inner support tubes 38.
  • the support tubes 38 are connected in welds 39 to support tube reinforcement plates 37. With the support tube reinforcement plates 37, the support tubes 38 are held on the relatively thin side plates 22.
  • the side plates 22 are made of stainless steel and, as FIG. 3 shows in their lower part, are held by the more solid pressure-holding plates 20, which consist of a normal structural steel.
  • FIG. 5 further shows, screw sleeves 21 extending in front of the plate packs 11 are guided through the side plates 22.
  • the screw sleeves 21 are welded at the ends with welds 26 to the relatively thin side plates 22.
  • the side plates 22 are made of stainless steel and are practically only a cladding for the stronger pressure holding plates 20 arranged behind them, which are made of normal structural steel, so-called black material.
  • Tension bolts 23 are guided through the screw sleeves 21 and hold the pressure holding plates 20 lying opposite one another via nuts 24 against the side plates 22 or the plate packs 11.
  • the nuts 24 are supported via washers 25 in the bores 36 of the pressure holding plates 20.
  • the bores 36 have a larger diameter than corresponds to the outer diameters of the screw sleeves 21 in order to keep the pressure holding plates 20 free of the weld seams 26 of the stainless steel side plates 22.
  • lateral deflection plates 27 and 29 are provided between the plate packs 11 and the rectangular flanges 13.
  • the first, somewhat larger baffle plates 27, as shown in FIG. 7, are connected at one end to the screw sleeves 21 via weld seams 30a.
  • the other free ends are held freely in the area of the rectangular flange 13 in V-shaped deflection profiles 28.
  • the deflection plates 27 are thus freely movable at one end and can deflect.
  • baffle plates 29 are held at one end by the comb-shaped plate packs 11.
  • the baffle plates 29 are connected to a weld 30 with the same screw sleeves 21 as the larger baffle plates 27 are connected.

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)
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
DE19620543A DE19620543C2 (de) 1996-04-19 1996-05-22 Hybrid-Plattenwärmetauscher
DE19620543 1996-05-22

Publications (3)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009152830A1 (fr) * 2008-06-18 2009-12-23 Gesmex Gmbh Jeu d’adaptation pour un échangeur de chaleur à faisceau tubulaire

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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009152830A1 (fr) * 2008-06-18 2009-12-23 Gesmex Gmbh Jeu d’adaptation pour un échangeur de chaleur à faisceau tubulaire
US9080815B2 (en) 2008-06-18 2015-07-14 Gesmex Gmbh Conversion set for a tube bundle heat exchanger

Also Published As

Publication number Publication date
EP0809081A3 (fr) 1999-03-10
ATE258673T1 (de) 2004-02-15
EP0809081B1 (fr) 2004-01-28

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