EP1923652A2 - Support de tube doté d'un dispositif de nettoyage intégré - Google Patents

Support de tube doté d'un dispositif de nettoyage intégré Download PDF

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Publication number
EP1923652A2
EP1923652A2 EP07021545A EP07021545A EP1923652A2 EP 1923652 A2 EP1923652 A2 EP 1923652A2 EP 07021545 A EP07021545 A EP 07021545A EP 07021545 A EP07021545 A EP 07021545A EP 1923652 A2 EP1923652 A2 EP 1923652A2
Authority
EP
European Patent Office
Prior art keywords
tubes
heat exchanger
elements
support
cleaning device
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
EP07021545A
Other languages
German (de)
English (en)
Other versions
EP1923652A3 (fr
EP1923652B1 (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 pipe support with integrated cleaning device for a bundle heat exchanger with a plurality of parallel tubes or tubes 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 intercooler described in DE-GM 66 06 681 for diesel engines in which the finned tubes or finned tubes are acted upon by these permanently installed spray arms with 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 DE 195 15 291 C2 represents the closest prior art.
  • the device described herein for the purification of heat exchangers consists of a device for spraying the tube outer surfaces with a pressurized standing 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 pipe support with integrated cleaning device, which is used variably.
  • the invention is based on the idea to design a pipe support with integrated cleaning device for 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, openings are provided which are in the flow direction with the inner cavity and serve for dispensing 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 can be in the Distributor elements, support elements or both may be provided.
  • 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 passages of the heat exchanger bundle 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 in close proximity to each other in a bundle heat exchanger to be used 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 manifolds 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 the best possible way, allow stabilization of the pipes or hoses.
  • 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 on the heat exchanger tube a liquid film forms with a cleansing effect.
  • 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 may be provided with openings and thus act on a pipe or hose via the support elements with cleaning medium.
  • Such openings on the support elements may 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.
  • 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 flows around on the outside of the pipe in the cross flow of a in Fig. 4 with "raw gas” designated to be cooled or heated gas stream.
  • spacer elements 14 and support elements 16 are used in conventional heat exchangers, which, in the case of the spacer elements, a Avoid swinging and concerns of the tubes to each other or, in the case of supporting elements 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 section of a pipe support according to the invention with integrated cleaning device for such a bundle heat exchanger shown in Fig. 1 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 enable the rotation shown later with reference to FIG. 2, but at the same time also to permit a contact with the tubes 12 on both sides of the tube lane as shown in FIG.
  • other cross-sectional shapes are also 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 designated 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 view shown in Fig. 1 is preferably a view from below, ie the outlet openings 24 are arranged downward and thus allow the generation of a cleaning film, which on the entire, the distributor element 22 facing the peripheral region of Tube can flow down along.
  • each with two outlet openings 24 which are associated with a single tube 12 in addition to the geometry shown in Fig. 1, each with two outlet openings 24 which are associated with a single tube 12, of course, other deviating geometries are possible, which are particularly adapted 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 tubes arranged next to one another 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 rotational movement shown later with reference to FIG. 2 is possible before the removal of the distributor elements 22.
  • Fig. 1 and the intermediate space 28 between two groups of spaced-apart tubes 12 is shown in each case.
  • a plurality of support elements 26 ' may be provided, which have only a small extent 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 drawing of FIG. 1, ie in the longitudinal direction of the tubes must be less than the width of the pipe alley, which corresponds to the outer diameter of the distributor element 22 in the embodiment of FIG.
  • a plurality of 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 distribution 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 has a possibly above the described pipe support arranged cleaning device is abandoned.
  • 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.
  • FIG. 2 The operating position of the distributor element 22b with the support elements 26b attached thereto is shown in FIG. 2 by solid lines. This corresponds to the position shown in FIG. 1, in which the individual support elements 26b are arranged between adjacent tubes and fix them relative to one another. With broken lines, the position 26'b is shown in Fig. 2, in which the distributor element 22b has been rotated by 90 ° about its longitudinal axis, so that the support element 26b disposed diametrically thereon are moved into the pipe path and in the 26'b shown Position can be removed by a longitudinal movement of the distributor element 22b together with this from the tube bundle heat exchanger.
  • Fig. 2 the extension of the support elements 26b is shown again in the longitudinal direction of the tubes 12, which must be less than the inside diameter of the pipe, so that after the rotation of the distributor element they can be removed from the tube bundle heat exchanger.
  • FIG. 3 shows, in an extension of FIG. 1, that distributor elements 22 can be arranged in each tube lane of the tube bundle heat exchanger, so that each individual tube 12 is exactly fixed in position.
  • the broken line on the distributor element 22b and the associated support element 26b make it clear that this can be arranged at a different height from the adjacent distributor elements 22a and 22d as shown in FIG.
  • the individual tubes are fixed on two sides by adjacent distributor elements, whereas movement perpendicular thereto and perpendicular to the longitudinal direction of the tubes is precluded by the supporting elements 26 of both one adjacent distributor element and the other adjacent distributor element , Furthermore, from Fig.
  • each distributor element can be removed and exchanged separately from the heat exchanger, but can also be readjusted in relation to its height.
  • the advantage of the present invention is to design a pipe support with integrated cleaning device so that it is easily interchangeable, so that a tube bundle heat exchanger with pipe supports according to the invention designed quickly and variably to the particular application or, if necessary, can be replaced.

Landscapes

  • 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)
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 true EP1923652A2 (fr) 2008-05-21
EP1923652A3 EP1923652A3 (fr) 2012-05-30
EP1923652B1 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003717A3 (fr) * 2009-07-06 2011-07-07 Babcock Borsig Service Gmbh Registre tubulaire pour l'échange de chaleur indirect
CN111912253A (zh) * 2020-06-08 2020-11-10 浙江石油化工有限公司 一种管程可在线清洗的多股流缠绕管换热器
CN114152114A (zh) * 2022-02-10 2022-03-08 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 (7)

* 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
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
DE19515291A1 (de) * 1995-04-26 1996-10-31 Gea Luftkuehler Happel Gmbh Vorrichtung zur Reinigung von Wärmeaustauschern
EP1508764A2 (fr) * 2003-08-22 2005-02-23 Martin Dr.-Ing. Möritz Dispositif et procédé de nettoyage d'échangeurs de chaleur à ailettes pour installations de traitement d'air

Patent Citations (7)

* 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
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
DE19515291A1 (de) * 1995-04-26 1996-10-31 Gea Luftkuehler Happel Gmbh Vorrichtung zur Reinigung von Wärmeaustauschern
EP1508764A2 (fr) * 2003-08-22 2005-02-23 Martin Dr.-Ing. Möritz Dispositif et procédé de nettoyage d'échangeurs de chaleur à ailettes pour installations de traitement d'air

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003717A3 (fr) * 2009-07-06 2011-07-07 Babcock Borsig Service Gmbh Registre tubulaire pour l'échange de chaleur indirect
US10048012B2 (en) 2009-07-06 2018-08-14 Babcock Borsig Service Gmbh Tube register for indirect heat exchange
CN111912253A (zh) * 2020-06-08 2020-11-10 浙江石油化工有限公司 一种管程可在线清洗的多股流缠绕管换热器
CN114152114A (zh) * 2022-02-10 2022-03-08 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

Also Published As

Publication number Publication date
EP1923652A3 (fr) 2012-05-30
DE102006053812B4 (de) 2008-08-14
EP1923652B1 (fr) 2016-02-24
DE102006053812A1 (de) 2008-05-21
PL1923652T3 (pl) 2016-09-30

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