EP1784613B1 - Interventionsverfahren für einen Wärmetauscher - Google Patents

Interventionsverfahren für einen Wärmetauscher Download PDF

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Publication number
EP1784613B1
EP1784613B1 EP05796036A EP05796036A EP1784613B1 EP 1784613 B1 EP1784613 B1 EP 1784613B1 EP 05796036 A EP05796036 A EP 05796036A EP 05796036 A EP05796036 A EP 05796036A EP 1784613 B1 EP1784613 B1 EP 1784613B1
Authority
EP
European Patent Office
Prior art keywords
bundle
envelope
pressure
circuit
intervention
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.)
Not-in-force
Application number
EP05796036A
Other languages
English (en)
French (fr)
Other versions
EP1784613A1 (de
Inventor
Jean-Marie Gueguen
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.)
Spirec Ste
Original Assignee
Spirec Ste
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Filing date
Publication date
Application filed by Spirec Ste filed Critical Spirec Ste
Priority to PL05796036T priority Critical patent/PL1784613T3/pl
Publication of EP1784613A1 publication Critical patent/EP1784613A1/de
Application granted granted Critical
Publication of EP1784613B1 publication Critical patent/EP1784613B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • 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
    • F28D9/04—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 being formed by spirally-wound plates or laminae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G13/00—Appliances or processes not covered by groups F28G1/00 - F28G11/00; Combinations of appliances or processes covered by groups F28G1/00 - F28G11/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts
    • F28F2280/02—Removable elements

Definitions

  • the present invention relates to exchangers and in particular exchangers intended to ensure a heat exchange between two fluids.
  • the heat exchangers using fluids consist of two circuits isolated from each other but which are in the highest possible thermal contact, and which are respectively traversed by the two fluids.
  • brazed plate type exchangers are not removable and therefore their circuits are also difficult to clean.
  • the present invention aims to provide means for a user to perform such cleaning, and this simply and quickly.
  • the heat exchanger comprises two fluid circuits insulated from each other in intimate heat exchange contact, a first fluid circuit, or beam, consisting of a spiral winding of two walls and the second circuit consisting of by an enclosure containing the beam, each circuit having its own fluid inlet and outlet means.
  • the beam is elastically deformable under the effect of an overpressure or a depression.
  • the enclosure will preferably be tubular and, when the internal pressure of the beam is equal to its external pressure, its outer diameter will be slightly less than or equal to the internal diameter of the enclosure. The difference in diameter between the inner face of the enclosure and the outer face of the beam will be less than 6% of the diameter of the latter.
  • the tubular casing may comprise two bottoms, at least one of which may be removable, these bottoms being traversed respectively by the means of entry and exit of the fluids, and means capable of sealing between the bottoms and the input and output means of the beam fluid.
  • These inlet and outlet means may consist respectively of two longitudinal tubes and the means capable of sealing between the tubes and the bottoms may consist of O-rings or a gland.
  • the beam can be made so that it is deformable under the effect of a pressure difference between the beam and the enclosure of an overpressure or a vacuum and give it an external diameter smaller than the internal diameter of the beam. envelope and apply to the beam overpressures and / or periodic depressions to change its outer diameter and break the fragile elements that can adhere to the walls (scale) that are deposited on him.
  • the method may include a preliminary step of disconnecting the beam from its circuit.
  • the intervention operation by subjecting the beam, once it has been extracted from its envelope, and before the intervention, to an overpressure and / or a relative heating with respect to the envelope, which will have the effect of spreading the turns of the winding from each other.
  • a limiter will be placed around the beam whose internal diameter will be equal to the maximum diameter that is wish not to exceed.
  • This limiter may consist of a ring or a sleeve.
  • the beam 3 consists of a spiral winding of two sheet sheets 5 which are spaced from each other and welded to provide a fluid circuit therebetween.
  • the spacing of these two sheets of sheet metal 5 is ensured by a series of "pins" 7 which are created and distributed over the surface of the sheet before folding it. These pins 7, once the winding performed, also ensure a regular and controlled spacing between the turns.
  • the space between the two sheets of folded sheet comprises a supply duct 9 and a discharge duct 11.
  • the envelope 1 consists of a cylindrical tube 13 whose inner diameter corresponds to the outer diameter of the beam 3, so as to receive it.
  • the envelope 1, as represented on the figure 3 has a fluid supply duct 15 and a discharge duct 17.
  • the tube 13 is closed on the one hand by a bottom 19 which is fixed and which is traversed by the exhaust duct 11 of the bundle 3 with interposition of an O-ring seal 23 and on the other hand, at its other end, by a removable base 25 and which, for this purpose, is held by clamping flanges 27 which bear on a flange 29 of the tube 13.
  • An O-ring 31 seals between the cover 25 and the supply duct 9 of the bundle 3.
  • the retraction of the beam 3 will be brought about by connecting one of the inputs 9 or 11 thereof to a vacuum pump, after having closed the other input, in order to create a vacuum part. It will then be possible to dismantle the beam without the risk of scratching the inner face of the casing 1. Once the beam 3 has been dismantled, the vacuum will be eliminated so that it expands and resumes its initial natural diameter, then the procedure will be carried out. (including mechanical cleaning) on it.
  • the intervention can be made easier and more effective if the beam 3 is expanded beyond its nominal diameter by applying this time an overpressure. Care should be taken during this operation not to deform beyond the elastic limit of the material used, so that it can resume its nominal diameter from the end of cleaning and the interruption of the overpressure.
  • FIG. figure 4 In order to limit the deformation to a maximum controlled value of the beam 3, it will be possible, as shown in FIG. figure 4 surround it, before applying the overpressure, a ring or a sleeve 20 whose inner diameter is equal to the maximum possible diameter that can take the beam 3 without undergoing deformation beyond its elastic limit. It is also possible to use rings 20 as shown in FIG. figure 5 .
  • the vacuum pump is disconnected so that the beam resumes its dimensions and nominal form.
  • the beam 3 a diameter smaller than the internal diameter of the casing 1.
  • Such an arrangement is particularly advantageous in that it allows for an automatic or almost automatic elimination of fragile deposits (eg limestones ) that occur on the walls of the beam. It suffices to subject the beam, for example during its operation, to an overpressure (or depression) of the fluid that passes through it to deform and burst the tartar plates that cover it. These operations can even be performed automatically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Power Steering Mechanism (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Gas Separation By Absorption (AREA)
  • Gasification And Melting Of Waste (AREA)

Claims (5)

  1. Interventionsverfahren, wie insbesondere eine Reinigung, für ein Bündel (3) eines Wärmetauschers vom spiralförmigen Typ, der zwei voneinander isolierte Fluidkreisläufe in engem Wärmeaustauschkontakt aufweist, wobei ein erster Fluidkreislauf durch eine spiralförmige Wicklung aus zwei Wänden (5) oder ein Bündel (3) gebildet wird, während der zweite Kreislauf durch einen Rauminhalt gebildet wird, der durch eine das Bündel (3) enthaltende Hülle (1) begrenzt wird, und wobei jeder Kreislauf seine eigenen Fluideintrittseinrichtungen (9, 15) und -austrittseinrichtungen (11, 17) aufweist, dadurch gekennzeichnet, dass es die folgenden Schritte umfasst:
    - das Bündel (3) wird, vor seinem Zurückziehen, einem Unterdruck und/oder einem Abkühlen bezüglich seiner Hülle (1) unterzogen, so dass es veranlasst wird, sich zusammenzuziehen,
    - das Bündel (3) wird wieder einem Umgebungsdruck und/oder einer Umgebungstemperatur ausgesetzt, sobald es wieder in seine Hülle (1) eingesetzt wurde.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass es einen vorbereitenden Schritt aufweist, der darin besteht, das Bündel (3) von seinem Kreislauf zu trennen.
  3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass es einen Zwischenschritt aufweist, der darin besteht, vor dem Schritt einer Intervention für das Bündel (3) das Bündel einem Überdruck und/oder einer Temperaturerhöhung bezüglich der Umgebungstemperatur zu unterziehen, so dass es veranlasst wird, sich aufzuweiten.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass man, vor dem Aufbringen des Überdrucks und/oder der Temperaturerhöhung auf das Bündel (3) um dieses herum eine Vorrichtung (20, 21) zur Begrenzung seines Durchmessers anordnet.
  5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass es darin besteht, das Bündel (3) so auszubilden, dass es unter dem Einfluss einer Druckdifferenz zwischen dem Bündel (3) und der Hülle (1) verformbar ist, und darin, diesem einen Außendurchmesser zu erteilen, der geringer als der Innendurchmesser der Hülle (1) ist, und auf das Bündel (3) periodische Über- und/oder Unterdrücke aufzubringen, um seinen Außendurchmesser zu modifizieren.
EP05796036A 2004-08-09 2005-08-09 Interventionsverfahren für einen Wärmetauscher Not-in-force EP1784613B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05796036T PL1784613T3 (pl) 2004-08-09 2005-08-09 Sposób wykonywania prac interwencyjnych przy wymienniku ciepła

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0408753A FR2874080A1 (fr) 2004-08-09 2004-08-09 Echangeur deformable
PCT/FR2005/002058 WO2006021674A1 (fr) 2004-08-09 2005-08-09 Echangeur deformable

Publications (2)

Publication Number Publication Date
EP1784613A1 EP1784613A1 (de) 2007-05-16
EP1784613B1 true EP1784613B1 (de) 2010-04-14

Family

ID=34949843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05796036A Not-in-force EP1784613B1 (de) 2004-08-09 2005-08-09 Interventionsverfahren für einen Wärmetauscher

Country Status (8)

Country Link
US (1) US20080073064A1 (de)
EP (1) EP1784613B1 (de)
AT (1) ATE464523T1 (de)
DE (1) DE602005020641D1 (de)
ES (1) ES2344357T3 (de)
FR (1) FR2874080A1 (de)
PL (1) PL1784613T3 (de)
WO (1) WO2006021674A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2071264B1 (de) * 2007-12-11 2010-05-26 Alfa Laval Spiral SNC Spiralwärmetauscher
CN105605944B (zh) * 2011-05-20 2018-04-24 Equitec控股公司 用于在热交换流体和易腐产品流体之间进行热交换的方法、可移除热交换盒以及热交换系统
FR2982662B1 (fr) 2011-11-15 2014-01-03 Faurecia Sys Echappement Echangeur en forme de spirale et procede de fabrication d'un tel echangeur
FI20135362A (fi) 2013-04-12 2014-10-13 Vahterus Oy Menetelmä levylämmönsiirtimen puhdistamiseksi ja levylämmönsiirrin
JP7303647B2 (ja) * 2019-03-20 2023-07-05 株式会社Subaru スパイラル式熱交換器
KR20220027562A (ko) * 2020-08-27 2022-03-08 엘지전자 주식회사 열교환기

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823458A (en) * 1968-12-27 1974-07-16 E Jouet Method of manufacturing a spirally wound heat exchanger
FR2096719A2 (en) * 1969-12-22 1972-02-25 Jouet Etienne Heat exchanger - with easily accessible coil and minimal thermal distortion
DE2007386A1 (en) * 1970-02-18 1971-09-02 Union Rheinische Braunkohlen Heat exchanger for strongly corrosive medium
AR220654A1 (es) * 1980-08-29 1980-11-14 Inquimet Sa Ind Com Agraria Intercambiador termico,mejorado,aplicable a la industria alimenticia
DE19810185C1 (de) * 1998-03-10 1999-10-21 Renzmann Und Gruenewald Gmbh Spiralwärmetauscher
FR2811068B1 (fr) * 2000-06-29 2003-04-04 Pierre Cantau Dispositif de refroidissement/chauffage pour produits alimentaires liquides

Also Published As

Publication number Publication date
EP1784613A1 (de) 2007-05-16
DE602005020641D1 (de) 2010-05-27
WO2006021674A1 (fr) 2006-03-02
ES2344357T3 (es) 2010-08-25
PL1784613T3 (pl) 2010-09-30
FR2874080A1 (fr) 2006-02-10
ATE464523T1 (de) 2010-04-15
US20080073064A1 (en) 2008-03-27

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