US20080073064A1 - Deformable Exchanger - Google Patents

Deformable Exchanger Download PDF

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Publication number
US20080073064A1
US20080073064A1 US11/659,615 US65961505A US2008073064A1 US 20080073064 A1 US20080073064 A1 US 20080073064A1 US 65961505 A US65961505 A US 65961505A US 2008073064 A1 US2008073064 A1 US 2008073064A1
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US
United States
Prior art keywords
bundle
casing
diameter
pressure
circuit
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.)
Abandoned
Application number
US11/659,615
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English (en)
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
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 SPIREC Ste filed Critical SPIREC Ste
Assigned to SOCIETE SPIREC reassignment SOCIETE SPIREC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GUEGUEN, JEAN-MARIE
Publication of US20080073064A1 publication Critical patent/US20080073064A1/en
Abandoned 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
    • 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 notably to exchangers for providing heat exchange between two fluids.
  • heat exchangers applying fluids consist of two mutually isolated circuits but which are in thermal contact as close as possible, and through which travel both fluids respectively.
  • Exchangers of the so-called plate and gasket type formed from more metal sheets may be disassembled plate by plate, so that it is thereby possible to access their circuits, even if this is a long operation to implement.
  • these exchangers because of their actual design, are therefore costly to utilize.
  • the object of the present invention is to propose means with which a user may carry out such cleaning and this in a simple and fast way.
  • the object of the invention is a heat exchanger comprising two mutually isolated fluid circuits in intimate thermal exchange contact, a first fluid circuit or bundle, being formed by a helical winding of two walls and the second circuit being formed by an chamber containing the bundle, each circuit including its own fluid input and output means, characterized in that the bundle is elastically deformable under the effect of excess pressure or low pressure.
  • the chamber will preferentially be of a tubular shape and, when the internal pressure of the bundle will be equal to its external pressure, its outer diameter will be slightly less than or equal to the inner diameter of the chamber.
  • the diameter difference between the inner face of the chamber and the outer face of the bundle will be less than 6% of the diameter of the latter.
  • the tubular casing may include two bottoms, at least one of which may be removable, these bottoms being respectively crossed by the fluid input and output means, and means capable of providing the seal between the bottoms and the fluid input and output means of the bundle.
  • These input and output means may respectively consist of two longitudinal tubes and the means capable of providing the seal between the tubes and the bottoms may consist of O-ring gaskets or a stuffing box.
  • the object of the present invention is also a method for intervening, such as for example for cleaning, on a bundle of a helical type exchanger including two mutually isolated fluid circuits in intimate thermal exchange contact, a first fluid circuit, or bundle, being formed by a helical winding of two walls, or bundle, and the second circuit being formed by a space delimited by a casing containing the bundle, each circuit including its own fluid input or output means, characterized in that it includes the steps of:
  • the bundle may be made so that it is deformable under the effect of a pressure difference between the bundle and the chamber, of excess pressure or low pressure and it may be provided with an outer diameter less than the inner diameter of the casing, and periodical excess pressures and/or low pressures may be applied to the bundle in order to change its outer diameter and break the brittle components which may have adhered to the walls (scale) which are deposited on it.
  • the method may include a preliminary step consisting of disconnecting the bundle from its circuit.
  • a limiter In order to avoid submitting the bundle to too strong pressure with the consequences of deforming the metal forming the winding beyond its elastic limit, a limiter, the diameter of which will be equal to the maximum diameter which should not be exceeded as desired, will be positioned around the bundle.
  • This limiter may consist of a ring or sheath.
  • FIG. 1 is a schematic cross-sectional view of an exchanger according to the invention.
  • FIG. 2 is a perspective view of a bundle forming the exchanger illustrated in FIG. 1 .
  • FIG. 3 is a perspective view of the casing containing the bundle illustrated in FIG. 2 .
  • FIGS. 4 and 5 are perspective views of a bundle of an exchanger according to the invention, respectively fitted with a sleeve and rings for limiting its outer diameter.
  • FIGS. 1-3 An exchanger according to the invention which essentially consists of a casing 1 which is intended to receive a bundle 3 , is illustrated in FIGS. 1-3 .
  • the bundle 3 consists of a helical winding of two metal sheets 5 which are spaced apart from each other and welded so as to provide between them a fluid circuit. Spacing out these two metal sheets 5 is provided by a series of “pins” 7 which are generated and distributed over the surface of the metal sheets before folding the latter. These pins 7 , once the winding has been carried out, also provide regular and controlled spacing between the turns.
  • the space between both folded metal sheets includes a supply conduit 9 and a discharge conduit 11 .
  • the casing 1 consists of a cylindrical tube 13 , the inner diameter of which corresponds to the outer diameter of the bundle 3 , so as to be able to receive the latter.
  • the casing 1 as illustrated in FIG. 3 , has a fluid supply conduit 15 and a discharge conduit 17 .
  • the tube 13 is closed by a bottom 19 which is fixed and which is crossed by the discharge conduit 11 of the bundle 3 with interposition of a O-ring seal gasket 23 on the one hand and at its other end, by a removable bottom 25 , and which for this purpose is maintained by clamping brackets 27 which bear upon a flange 29 of the tube 13 , on the other hand.
  • An O-ring gasket 31 provides the seal between the lid 25 and the supply conduit 9 of the bundle 3 .
  • the bundle 3 is caused to be deformable at its diameter under the effect of a stress.
  • the thickness and the nature of the steel used will be varied.
  • retraction of the bundle 3 will be caused by connecting one of the inlets 9 or 11 to the latter, to a vacuum pump, after having blocked the other inlet, in order to create partial vacuum.
  • the bundle may then be disassembled without any risk of scratching the inner face of the casing 1 .
  • the vacuum will be suppressed so that it will expand and resume its initial natural diameter, and then one will proceed with the intervention (notably with mechanical cleaning) on the latter.
  • the intervention may be made easier and more efficient if the bundle 3 is expanded beyond its rated diameter, by this time applying excess pressure to it. During this operation care will be taken in order not to deform it beyond the elastic limit of the material used, so that it may resume its rated diameter as soon cleaning and interruption of the excess pressure has been completed.
  • the latter may be surrounded, as illustrated in FIG. 4 , before applying the excess pressure, by a ring or a sleeve, the inner diameter of which is equal to the maximum possible diameter which the bundle 3 may assume without undergoing any deformation beyond its elastic limit. It is also possible to resort to rings 20 , as illustrated in FIG. 5 .
  • a strongly cooled liquid notably close to or even less than 0° C. may be caused to flow in the bundle, so as to cause it to contract, and at the same time the casing may be submitted to a higher temperature than room temperature so as to cause it to expand.
  • the bundle 3 For certain applications, it is possible to provide the bundle 3 with a diameter less than the inner diameter of the casing 1 .
  • Such an arrangement is particularly interesting in that it provides automatic or quasi-automatic removal of brittle (limestone for example) deposits which occur on the walls of the bundle. Indeed, it is sufficient to submit the bundle, for example during its operation, to an excess pressure (or a low pressure) of the fluid which flows through it in order to deform and cause the bursting of the scale platelets which cover it. These operations may 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)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Power Steering Mechanism (AREA)
  • Gas Separation By Absorption (AREA)
  • Gasification And Melting Of Waste (AREA)
US11/659,615 2004-08-09 2005-08-09 Deformable Exchanger Abandoned US20080073064A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0408753 2004-08-09
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 (1)

Publication Number Publication Date
US20080073064A1 true US20080073064A1 (en) 2008-03-27

Family

ID=34949843

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/659,615 Abandoned US20080073064A1 (en) 2004-08-09 2005-08-09 Deformable Exchanger

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)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103765154A (zh) * 2011-05-20 2014-04-30 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
WO2014167183A1 (en) 2013-04-12 2014-10-16 Vahterus Oy Method for cleaning plate heat exchanger and plate heat exchanger
US9250022B2 (en) 2007-12-11 2016-02-02 Alfa Laval Corporate Ab Spiral heat exchanger
US20220065544A1 (en) * 2020-08-27 2022-03-03 Lg Electronics Inc. Heat exchanger
US11287190B2 (en) * 2019-03-20 2022-03-29 Subaru Corporation Spiral heat exchanger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2982662B1 (fr) 2011-11-15 2014-01-03 Faurecia Sys Echappement Echangeur en forme de spirale et procede de fabrication d'un tel echangeur

Citations (2)

* 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
US4402361A (en) * 1980-08-29 1983-09-06 Inquimet Sociedad Anonima Industrial Comercial Y Agraria Heat exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Patent Citations (2)

* 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
US4402361A (en) * 1980-08-29 1983-09-06 Inquimet Sociedad Anonima Industrial Comercial Y Agraria Heat exchanger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9250022B2 (en) 2007-12-11 2016-02-02 Alfa Laval Corporate Ab Spiral heat exchanger
CN103765154A (zh) * 2011-05-20 2014-04-30 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
CN105605944A (zh) * 2011-05-20 2016-05-25 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
US10045657B2 (en) 2011-05-20 2018-08-14 Equitec Holding B.V. Replaceable heat exchange cartridge employed in a heat exchange system for temperature control of a perishable fluid
WO2014167183A1 (en) 2013-04-12 2014-10-16 Vahterus Oy Method for cleaning plate heat exchanger and plate heat exchanger
US10197346B2 (en) 2013-04-12 2019-02-05 Vahterus Oy Method for cleaning plate heat exchanger and plate heat exchanger
US11287190B2 (en) * 2019-03-20 2022-03-29 Subaru Corporation Spiral heat exchanger
US20220065544A1 (en) * 2020-08-27 2022-03-03 Lg Electronics Inc. Heat exchanger

Also Published As

Publication number Publication date
ATE464523T1 (de) 2010-04-15
EP1784613A1 (de) 2007-05-16
PL1784613T3 (pl) 2010-09-30
FR2874080A1 (fr) 2006-02-10
DE602005020641D1 (de) 2010-05-27
WO2006021674A1 (fr) 2006-03-02
ES2344357T3 (es) 2010-08-25
EP1784613B1 (de) 2010-04-14

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Date Code Title Description
AS Assignment

Owner name: SOCIETE SPIREC, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GUEGUEN, JEAN-MARIE;REEL/FRAME:019914/0543

Effective date: 20070928

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION