EP1923652B1 - Échangeur de chaleur à faisceau de tubes avec un support de tube doté d'un dispositif de nettoyage intégré - Google Patents

Échangeur de chaleur à faisceau de tubes avec un support de tube doté d'un dispositif de nettoyage intégré Download PDF

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Publication number
EP1923652B1
EP1923652B1 EP07021545.4A EP07021545A EP1923652B1 EP 1923652 B1 EP1923652 B1 EP 1923652B1 EP 07021545 A EP07021545 A EP 07021545A EP 1923652 B1 EP1923652 B1 EP 1923652B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
bundle heat
tubes
tube
tube bundle
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
EP07021545.4A
Other languages
German (de)
English (en)
Other versions
EP1923652A2 (fr
EP1923652A3 (fr
Inventor
Ulrich Dr. Willibald
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.)
Flucorrex AG
Original Assignee
Flucorrex AG
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 Flucorrex AG filed Critical Flucorrex AG
Publication of EP1923652A2 publication Critical patent/EP1923652A2/fr
Publication of EP1923652A3 publication Critical patent/EP1923652A3/fr
Application granted granted Critical
Publication of EP1923652B1 publication Critical patent/EP1923652B1/fr
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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0132—Auxiliary supports for elements for tubes or tube-assemblies formed by slats, tie-rods, articulated or expandable rods
    • 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
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents

Definitions

  • the invention relates to a tube bundle heat exchanger with a pipe support with integrated cleaning device according to the preamble of claim 1.
  • Tube bundle heat exchangers with integrated cleaning devices are known in the art.
  • the cleaning device serves to prevent fouling of the heat exchanger, triggered by a deposition of entrained in the gas flow dirt particles and / or from the gas stream condensing deposits.
  • the cleaning of a shell and tube heat exchanger is particularly important in terms of the efficiency of the heat exchanger, as deposited on the pipes dirt acts as an insulator layer and hinders the heat transfer. Since such heat exchangers are often used in the area for cooling flue gases, the cleaning of the outer surfaces of the replacement tubes at regular intervals to carry out, since the hot flue gases often still contain a high amount of dirt and dust and / or have a high pollution potential in condensation of flue gas ingredients.
  • a tube bundle heat exchanger with integrated cleaning device is in the US 5,186,240 described.
  • the horizontal tubes are acted upon by rotatably arranged spray arms with spray nozzles with a suitable cleaning liquid.
  • the German utility model 1 948 739 proposes a different solution.
  • slidable lances are provided for ejecting cleaning liquid in the longitudinal direction, which can be inserted in pipe passages between the tubes of a bundle heat exchanger and moved in the longitudinal direction.
  • the lances are rotated about their longitudinal axis in order to be able to use simpler nozzle heads for the same cleaning effect.
  • the in the DE 195 15 291 C2 described device for the purification of heat exchangers consists of a device for spraying the tube outer surfaces with a pressurized cleaning liquid, wherein between the Exchanger tubes fixedly arranged cleaning lines are provided which have upwardly directed outlet openings.
  • the cleaning lines form part of spacer elements between the exchanger tubes.
  • the invention has for its object to provide a tube bundle heat exchanger with a pipe support with integrated cleaning device that can be used variably.
  • the invention is based on the idea to design a pipe support with integrated cleaning device of a bundle heat exchanger with a plurality of parallel tubes or hoses so that insertable distributor elements are provided in pipe passages of the heat exchanger, which can be flowed through by an internal cavity with cleaning medium. Furthermore, there are openings provided, which are in the flow direction with the inner cavity and serve the output of cleaning medium.
  • the pipe support with integrated cleaning device is characterized in that each extending from a distributor element supporting elements which are dimensioned so as to extend into the space between two arranged along the distributor element, adjacent tubes or hoses of the bundle heat exchanger.
  • these support elements have an extension in the longitudinal direction of the tubes or tubes, which is smaller than the inside diameter of the associated pipe alley into which the distributor element is inserted.
  • the openings may be provided in the manifold elements, support members or both.
  • the distributor elements can be designed with associated support elements so that they are each rotatable by a rotation about the longitudinal axis of the distributor elements into a position in which they can be removed from the bundle heat exchanger.
  • the distributor elements with associated supporting elements can be rotated together about the longitudinal axis of the distributor element in such a way that the structural unit consisting of distributor element and associated supporting elements can be removed from the bundle heat exchanger in the longitudinal direction of the distributor elements.
  • a simple design element fulfills various functions simultaneously.
  • the pipe support consisting of distributor element and supporting element stabilizes the tubes or hoses of the bundle heat exchanger and simultaneously acts on these with cleaning medium.
  • this unit can be brought about a simple rotation, preferably by 90 °, about the longitudinal axis of the distributor elements in a position in which they can be removed from the bundle heat exchanger. As a result, this unit can be removed from the fully assembled heat exchanger and replaced if necessary.
  • tube bundle heat exchangers can be manufactured as a modular system of variable use, whereby a greater or lesser number of pipe supports are introduced into the pipe paths of the heat exchanger bundle as required and, depending on the cleaning requirements, a suitable amount of cleaning medium can be dispensed at a suitable position.
  • the support elements are arranged only on one longitudinal side of a distributor element.
  • the resulting comb-like geometry may be suitable when distribution elements are to be used in close proximity to each other in a bundle heat exchanger and therefore the removal of individual distribution elements should be subjected to smaller spatial restrictions.
  • the arrangement of the support elements on two opposite longitudinal sides of a distributor element still has the advantage that the distributor elements can be brought with associated support elements in each case by a rotation about the longitudinal axis of the distributor element in the removal position.
  • the support elements have an extension in the cross-sectional plane of the tubes or tubes, which corresponds at least to the radius of the tubes or hoses of the bundle heat exchanger. If the manifold elements are dimensioned to fill the entire pipe lane in the cross-sectional plane of the pipes or hoses, this means that the support elements are tangent to the outer circumference of the pipes or hoses and therefore in best possible way to stabilize the pipes or hoses allow.
  • the distributor elements are preferably arranged in each parallel tube lane of the bundle heat exchanger.
  • the openings in the distributor elements are arranged so that in each case a tube or hose is acted upon by cleaning liquid from at least one opening of a distributor element. It is desirable that the cleaning medium forms a liquid film with a cleaning effect on the heat exchanger tube.
  • the openings are arranged according to a preferred embodiment so that a distributor element acts on two rows of pipes or hoses on both sides of the pipe alley with cleaning medium.
  • the support elements In order to improve the cleaning effect of the liquid film, it may be advantageous to provide the support elements with openings and thus act on a pipe or hose via the support elements with cleaning medium.
  • Such openings on the support elements can also be arranged in addition to the openings on the distributor elements:
  • a tube bundle heat exchanger with a pipe support further comprises additional cleaning nozzles on the upstream side of the tube bundle heat exchanger.
  • additional cleaning nozzles on the upstream side of the tube bundle heat exchanger.
  • a conventional tube bundle heat exchanger 10 which consists of a plurality of mutually perpendicular tubes or tubes 12.
  • the tubes 12 are arranged in a plurality of side by side and one behind the other like a bundle and extend vertically. They are flowed through on the inside of the tube by a cooling or heating medium and on the outside of the tube in the cross flow of a in Fig. 4 with "raw gas” designated to flow around or to be heated gas flow around.
  • the crossflow exposes the tubes to a flow pressure that can cause compressive forces and flow-induced vibrations. Therefore, in conventional heat exchangers spacer elements 14 and support members 16 are used, which, in the case of spacer elements, avoid swinging and concerns of the tubes to each other or, in the case of support members 16, cause an accurate fixation of the individual tubes.
  • a cleaning medium manifold extending in the longitudinal direction of the tubes 12 and having exit nozzles 20 for directing the cleaning medium to the most heavily contaminated upstream side of the adjacent tubes is sprayed on.
  • the in Fig. 1 illustrated section of a tube bundle heat exchanger according to the invention with a pipe support with integrated cleaning device consists of a distributor element 22, which, as shown, extends into a pipe passage of the tube bundle heat exchanger.
  • the distributor element 22 is arranged substantially perpendicular to the longitudinal axis of the tubes 12.
  • the distributor element 22 preferably has a circular cross-section in order to be described later with reference to FIGS Fig. 2 illustrated rotation, but at the same time a as in Fig. 1 represented concerns to allow the pipes 12 on both sides of the pipe alley.
  • Other cross-sectional shapes are However, conceivable as long as only the rotation of the distributor elements is possible, so that they can be removed.
  • the distributor element 22 is provided with a plurality of outlet openings 24, of which only a few in Fig. 1 are denoted by reference numeral.
  • two outlet openings are each associated with a tube 12 so that the tube can be acted upon with cleaning medium, preferably a cleaning liquid, preferably on the entire circumferential area facing the distributor element 22.
  • the outlet openings 24 may be configured as nozzles, from which the cleaning medium transported in the inner cavity 30 of the distributor element 22 exits under increased pressure. In the same way, it is also possible to let the cleaning medium without appreciable pressure and without the provision of a nozzle-like constriction gush out, so that the cleaning medium flows as a film along the tubes 12 along.
  • the outlet openings 24 are arranged downwards and thus allow the generation of a cleaning film which can flow down the entire, the distributor element 22 facing the peripheral region of the tube along.
  • each with two outlet openings 24, which are assigned to a single tube 12 are of course others, hereof deviating geometries possible, which are particularly tailored to the cleaning medium used and the nature and extent of the dirt to be removed.
  • Such openings on the support elements may also be arranged in addition to the openings on the distributor elements.
  • Support elements 26a, 26b extend from the distributor element 22 on both sides of the distributor element into the intermediate space between two juxtaposed tubes along one side of the distributor element 22.
  • the support elements 26 are arranged diametrically opposite one another on both sides of the distributor element 22, so that the later will be described with reference to FIGS Fig. 2 shown rotational movement before removal of the distributor elements 22 is possible.
  • Fig. 1 Also, the gap 28 between two groups of each spaced apart at a greater distance tubes 12 is shown. In the area of such a gap, as in Fig. 1 is shown, a plurality of support elements 26 'may be provided, which have only a small extension in the longitudinal direction of the distributor element 22.
  • the remaining support elements 26a and 26b are preferably dimensioned so that their extension in the longitudinal direction of the distributor element 22 corresponds to the smallest distance between two adjacent tubes 12. Furthermore, the support elements 26 are dimensioned in a direction perpendicular to the longitudinal extent of the distributor elements 22 and perpendicular to the longitudinal direction of the tubes 12 so that they extend at least to the smallest distance between two adjacent tubes 12. By this measure it is ensured that the support elements 26 abut tangentially on the outer circumference of the adjacent tubes 12 and thus fix the tubes to each other.
  • the extension of the support elements 26 perpendicular to the plane of the Fig. 1 . ie in the longitudinal direction of the tubes must be less than the width of the pipe alley, according to the embodiment Fig. 1 the outer diameter of the distributor element 22 corresponds.
  • Fig. 2 Several juxtaposed tubes 12 are shown in the longitudinal direction. Between each two adjacent tubes in each case a distributor element is shown, wherein arranged in adjacent pipe routes distributor elements can be arranged with respect to their height in one or more planes.
  • An advantageous embodiment results in staggered arrangement, since so the drainage of the cleaning medium is improved, which is placed over a possibly arranged above the described pipe support cleaning device.
  • the reference to the height is made on condition that it is a heat exchanger with vertically arranged tubes 12.
  • the distribution elements 22a and 22c are at the same height, while the distribution element 22b is offset sufficiently far in relation to the height that it can be rotated about its longitudinal axis. This is illustrated by the distribution device 22b with the support elements 26b. With solid lines is in Fig.
  • FIG. 2 show the operating position of the distributor element 22b with the support elements 26b attached thereto. This corresponds to the in Fig. 1 shown position in which the individual support members 26b are disposed between adjacent tubes and fix them relative to each other. With broken lines is in Fig. 2 position 26'b, in which the distributor element 22b has been rotated by 90 ° about its longitudinal axis, so that the support elements 26b arranged diametrically thereon are moved into the pipe path and in the position shown by 26'b by a longitudinal movement of the distributor element 22b can be removed with this from the tube bundle heat exchanger.
  • Fig. 2 is again the extension of the support members 26b shown in the longitudinal direction of the tubes 12, the lower must be as the clear width of the pipe line, so that after the rotation of the distributor element, these can be removed from the tube bundle heat exchanger.
  • FIG. 3 Finally, in extension of Fig. 1 illustrated that distributor elements 22 can be arranged in each pipe passage of the tube bundle heat exchanger, so that each individual tube 12 is exactly fixed in position. By the broken line on the distributor element 22b and the associated support element 26b it is clear that this at a different height to the adjacent distributor elements 22a and 22d as shown in FIG Fig. 2 can be arranged. As with the example of any tube 12 in Fig. 3 is clear, the individual tubes are fixed on two sides by adjacent distributor elements, whereas a movement perpendicular thereto and perpendicular to the longitudinal direction of the tubes is excluded by the support members 26 of both an adjacent distributor element as well as the other adjacent distributor element. Furthermore are out Fig.
  • each distribution element separately removed from the heat exchanger and replaced, but also be easily adjusted in terms of its height.
  • the advantage of the present invention is, a pipe support with integrated cleaning device in such a way that it is easily interchangeable, so that a tube bundle heat exchanger with pipe supports according to the invention quickly and variably to the respective Application designed or, if necessary, can be replaced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cleaning In General (AREA)

Claims (10)

  1. Echangeur de chaleur à faisceau de tubes comprenant une pluralité de tubes (12) ou de tuyaux flexibles disposés de manière parallèle et un support de tube pourvu d'un dispositif de nettoyage intégré,
    le support de tube comprenant :
    - des éléments de distribution (22 ; 22a, 22b, 22c) pouvant être introduits dans des voies tubulaires de l'échangeur de chaleur (10), lesquelles peuvent être parcourus, à travers un espace creux intérieur (30) par un agent de nettoyage ;
    - des ouvertures (24), qui se trouvent en communication fluidique avec l'espace intérieur creux (30),
    caractérisé en ce que :
    - des éléments de support (26 ; 26a, 26b, 26c, 26') s'étendent respectivement de l'élément de distribution (22 ; 22a, 22b, 22c) et sont dimensionnés afin de s'étendre dans l'espace libre entre deux tubes (12) ou tuyaux flexibles adjacents disposés le long de l'élément de distribution (22 ; 22a, 22b, 22c),
    - les éléments de support (26 ; 26a, 26b, 26c, 26') possèdent une extension dans la direction longitudinale des tubes (12) ou des tuyaux flexibles, qui est inférieure au diamètre inférieur de la voie tubulaire associée ; et
    - les éléments de distribution (22 ; 22a, 22b, 22c) peuvent tourner, avec leurs éléments de support (26 ; 26a, 26b, 26c, 26') associés, respectivement par une rotation commune autour de l'axe longitudinal de l'élément de distribution dans une position, dans laquelle ils peuvent être retirés de l'échangeur de chaleur à faisceau (10).
  2. Echangeur de chaleur à faisceaux de tubes selon la revendication 1,
    caractérisé en ce que :
    les éléments de support (26 ; 26a, 26b, 26c, 26') sont disposés uniquement sur un côté longitudinal d'un élément de distribution (22 ; 22a, 22b, 22c).
  3. Echangeur de chaleur à faisceau de tubes selon la revendication 1,
    caractérisé en ce que :
    les éléments de support (26 ; 26a, 26b, 26c, 26') sont disposés sur deux côtés longitudinaux opposés d'un élément de distribution (22 ; 22a, 22b, 22c).
  4. Echangeur de chaleur à faisceau de tubes selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    les éléments de distribution (22 ; 22a, 22b, 22c) sont disposés dans chaque voie tubulaire parallèle de l'échangeur de chaleur à faisceau de tubes (10).
  5. Echangeur de chaleur à faisceau de tubes selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    les ouvertures (24) sont ménagées de telle sorte que respectivement un tube (12) et au moins une ouverture (24) d'un élément de distribution (22 ; 22a, 22b, 22c) puissent être soumis à l'action d'un agent de nettoyage.
  6. Echangeur de chaleur à faisceau de tubes selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    les ouvertures (24) sont ménagées de telle sorte qu'un élément de distribution (22 ; 22a, 22b, 22c) soumette à l'action d'un agent de nettoyage deux rangées de tubes (12) ou de tuyaux flexibles de part et d'autre de la voie tubulaire.
  7. Echangeur de chaleur à faisceau de tubes selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    les éléments de support (26 ; 26a, 26b, 26c, 26') possèdent une extension perpendiculairement à la direction longitudinale des tubes (12) ou des tuyaux flexibles, laquelle correspond au moins au rayon des tubes (12) ou des tuyaux flexibles.
  8. Echangeur de chaleur à faisceau de tubes selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    éléments de support (26 ; 26a, 26b, 26c, 26') possèdent des ouvertures (24).
  9. Echangeur de chaleur à faisceau de tubes selon l'une quelconque des revendications précédentes,
    caractérisé en ce que :
    les éléments de distribution (22 ; 22a, 22b, 22c) et les éléments de support (26 ; 26a, 26b, 26c, 26') possèdent des ouvertures (24).
  10. Echangeur de chaleur à faisceau de tubes selon la revendication 1, comprenant en outre des buses de nettoyage supplémentaires (20) du côté situé en amont de l'échangeur de chaleur à faisceau de tubes (10).
EP07021545.4A 2006-11-15 2007-11-06 Échangeur de chaleur à faisceau de tubes avec un support de tube doté d'un dispositif de nettoyage intégré Not-in-force EP1923652B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610053812 DE102006053812B4 (de) 2006-11-15 2006-11-15 Rohrabstützung mit integrierter Reinigungseinrichtung

Publications (3)

Publication Number Publication Date
EP1923652A2 EP1923652A2 (fr) 2008-05-21
EP1923652A3 EP1923652A3 (fr) 2012-05-30
EP1923652B1 true EP1923652B1 (fr) 2016-02-24

Family

ID=39123124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07021545.4A Not-in-force EP1923652B1 (fr) 2006-11-15 2007-11-06 Échangeur de chaleur à faisceau de tubes avec un support de tube doté d'un dispositif de nettoyage intégré

Country Status (3)

Country Link
EP (1) EP1923652B1 (fr)
DE (1) DE102006053812B4 (fr)
PL (1) PL1923652T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031969A1 (de) 2009-07-06 2011-01-13 Babcock Borsig Service Gmbh Rohrregister für den indirekten Wärmeaustausch
CN114152114B (zh) * 2022-02-10 2022-06-10 潍坊金健钛设备有限公司 一种列管式换热器
CN117804253A (zh) * 2024-02-29 2024-04-02 陕西中博工业制冷设备有限公司 一种水热交换设备

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1119437A (fr) * 1954-05-13 1956-06-20 Green & Son Ltd Dispositif de protection contre la corrosion dans les récupérateurs de chaleur

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1027701B (de) * 1956-08-24 1958-04-10 Licentia Gmbh Roehrenwaermetauscher, insbesondere fuer Gasturbinen
DE1948739U (de) * 1964-11-12 1966-11-03 Hoechst Ag Rohrbuendelwaermeuebertrager mit reinigungseinrichtung.
DE6606681U (de) * 1968-03-05 1970-11-19 Heinrich Habermann Fa Ladeluftkuehler fuer dieselmotoren
US5186240A (en) * 1991-08-02 1993-02-16 King Company Coil cleansing assembly
DE19515291C2 (de) * 1995-04-26 1998-08-13 Gea Luftkuehler Happel Gmbh Vorrichtung zur Reinigung von Wärmeaustauschern
ES2310269T3 (es) * 2003-08-22 2009-01-01 Martin Dr.-Ing. Moritz Procedimiento para la limpieza de intercambiadores de calor que presentan aletas en equipos de tratamiento de aire.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1119437A (fr) * 1954-05-13 1956-06-20 Green & Son Ltd Dispositif de protection contre la corrosion dans les récupérateurs de chaleur

Also Published As

Publication number Publication date
EP1923652A2 (fr) 2008-05-21
PL1923652T3 (pl) 2016-09-30
DE102006053812B4 (de) 2008-08-14
EP1923652A3 (fr) 2012-05-30
DE102006053812A1 (de) 2008-05-21

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