EP2589913A2 - Support pour un faisceau de tubes et échangeur de chaleur doté d'un tel support - Google Patents

Support pour un faisceau de tubes et échangeur de chaleur doté d'un tel support Download PDF

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Publication number
EP2589913A2
EP2589913A2 EP12183050.9A EP12183050A EP2589913A2 EP 2589913 A2 EP2589913 A2 EP 2589913A2 EP 12183050 A EP12183050 A EP 12183050A EP 2589913 A2 EP2589913 A2 EP 2589913A2
Authority
EP
European Patent Office
Prior art keywords
tubes
heat exchanger
support
tube bundle
perforations
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.)
Withdrawn
Application number
EP12183050.9A
Other languages
German (de)
English (en)
Other versions
EP2589913A3 (fr
Inventor
Rainer Numrich
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.)
Wilhelm Deller & Co KG GmbH
Original Assignee
Wilhelm Deller & 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
Application filed by Wilhelm Deller & Co KG GmbH filed Critical Wilhelm Deller & Co KG GmbH
Publication of EP2589913A2 publication Critical patent/EP2589913A2/fr
Publication of EP2589913A3 publication Critical patent/EP2589913A3/fr
Withdrawn legal-status Critical Current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
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/06—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend

Definitions

  • the invention relates to a support for a bundle of tubes of a heat exchanger between fluids, from a plate with holes for the tubes and a heat exchanger provided therewith.
  • Shell-and-tube heat exchangers are used in many areas of industrial processes and power plants for heat transfer between fluids flowing in the tubes and in the housing.
  • the heat transfer between gases and liquids can be done in any combination.
  • the tubes In such a tube bundle heat exchanger, the tubes must be stably held at a defined pitch (pitch) in a closed housing. This distance is determined by the diameter of the tubes and the clearance between the tubes. The smaller the area of this free space is held, the higher the speed increase of the flowing fluid.
  • Perforated baffles are often used, through the holes of which the tubes are inserted and whose distance is optimized for the efficiency of heat transfer. Since the perforated plates act as bulkheads for the flow in the housing, they are often arranged offset only as half sheets in the housing. Such is in the European patent specification EP 1 709 382 B1 describes a support for a tube bundle, which is inserted several times offset in the housing. This results in a combination of longitudinal and transverse flows of the fluid for the flow in the housing, which can lead to vibrations of the tubes.
  • a set of crossed comb-like struts is used in the housing, which hold the tubes with the openings between the intersections of the struts.
  • the distance between the tubes is determined by the thickness of the struts. If a greater distance is to be achieved, thicker struts must be used. Also, the production of the comb-like struts and their exact welding consuming.
  • the support for a bundle of tubes is optimized for heat transfer between fluids. It consists of a plate with perforations for the tubes, wherein between the perforations further openings are incorporated in the support, which connect the perforations together as an opening. These openings allow a largely defined flow along the tubes.
  • the fluids may be any gases or liquids, one flowing in the tubes and another flowing around the tubes in the housing.
  • the flow directions are preferably oppositely directed to achieve optimum heat transfer according to the countercurrent principle.
  • the support is advantageously made of a metal sheet with a thickness between 1 mm and 20 mm. This results in the required stability.
  • the openings can be made very simple when punched with circular punches. It can remain between the openings only a minimal web, which is required depending on the thickness of the metal sheet. The width of the remaining web determines the minimum distance of the tubes in one direction. In the other direction, the tubes can be close together. Depending on the application of the heat exchanger, the distances between the holes are optimized.
  • the perforations are formed according to the profile of the pipes to be supported. It can be kept smooth, twisted or profiled tubes.
  • the supports for holding the tube bundles are inserted in a closed housing of the tube bundle heat exchanger. This requires at least two supports located near the ends of the housing. The stability of the tube bundle is further improved if two supports are used in parallel with spacers at each end.
  • the arrangement of the tubes can be designed differently. Duct bundles can be used. But there are also U-tube bundles used, which are installed in disposable or reusable design in the housing.
  • Fig. 1 is a schematic representation of the Rohrbündel Anlagenübertragers shown.
  • the first fluid passes through the inlet 4 in the housing 1 and flows around the tubes 3.
  • About the outlet 5 leaves the first fluid again the housing.
  • the second fluid passes through the inlet 6 into the tubes 3 and flows through them in the opposite direction to the first fluid.
  • Via the outlet 7, the second fluid leaves the tube bundle heat exchanger.
  • the heat transfer takes place in countercurrent process.
  • the supports 4 give the tube bundle a firm grip and allow a defined flow of the first fluid along the tubes 3.
  • Fig. 2 shows a U-tube bundle heat exchanger, in which all inlets and outlets are arranged on the side of the tube plate 15.
  • the partition 9 separates the housing into two chambers.
  • the tubes 3 are held in this example by each double supports 4, which are connected by spacers 8. Again, the first fluid passes through the inlet 4 in the housing 1 and flows around the tubes 3. About the outlet 5 of the lower chamber, the first fluid leaves the housing again. 1
  • the second fluid passes through the inlet 6 into the tubes 3 and flows through them in the opposite direction to the first fluid. Via the outlet 7, the second fluid leaves the tube bundle heat exchanger. The heat transfer takes place here in countercurrent process.
  • a support 4 is shown in plan view.
  • the outer shape corresponds to the inner cross section of the housing and is circular here.
  • perforations 10 are introduced, which hold the tubes 3.
  • the tubes 3 are schematically indicated approximately for a quarter of the area.
  • the perforations 10 are connected to each other via the punches 11 in such a way that a large opening 12 results, but the tubes 3 are held securely.
  • the punched-out 11 are also shown here as circular, but could be about rectangular.
  • the perforations are distributed so that the desired arrangement of the tubes results with their distances between them. If two supports 4 are to be arranged parallel to each other, they are connected with spacers. This can be done via the screws 13.

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)
EP12183050.9A 2011-11-02 2012-09-05 Support pour un faisceau de tubes et échangeur de chaleur doté d'un tel support Withdrawn EP2589913A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110054984 DE102011054984A1 (de) 2011-11-02 2011-11-02 Stütze für ein Rohrbündel und damit versehener Wärmeübertrager

Publications (2)

Publication Number Publication Date
EP2589913A2 true EP2589913A2 (fr) 2013-05-08
EP2589913A3 EP2589913A3 (fr) 2014-07-23

Family

ID=46799134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12183050.9A Withdrawn EP2589913A3 (fr) 2011-11-02 2012-09-05 Support pour un faisceau de tubes et échangeur de chaleur doté d'un tel support

Country Status (2)

Country Link
EP (1) EP2589913A3 (fr)
DE (1) DE102011054984A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016103226A1 (de) * 2016-02-24 2017-08-24 Airbus Ds Gmbh Rohrbündel, Rohrbündelwärmetauscher und Verfahren zu deren Herstellung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1709382B1 (fr) 2003-12-22 2009-04-15 Shell Internationale Researchmaatschappij B.V. Support destine a un faisceau de tubes
EP1624272B1 (fr) 2004-06-18 2011-08-03 ExxonMobil Research and Engineering Company Support de tube

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547217A1 (de) * 1975-10-22 1977-05-05 Daimler Benz Ag Rohrbuendel-waermetauscher fuer gase
JPS6239188U (fr) * 1985-08-28 1987-03-09
JP2005036739A (ja) * 2003-07-16 2005-02-10 Hino Motors Ltd Ｅｇｒクーラ
US7740057B2 (en) * 2007-02-09 2010-06-22 Xi'an Jiaotong University Single shell-pass or multiple shell-pass shell-and-tube heat exchanger with helical baffles
US20100116478A1 (en) * 2008-11-12 2010-05-13 Exxonmobil Research And Engineering Company Displaceable baffle for a heat exchanger and method for reducing vibration for the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1709382B1 (fr) 2003-12-22 2009-04-15 Shell Internationale Researchmaatschappij B.V. Support destine a un faisceau de tubes
EP1624272B1 (fr) 2004-06-18 2011-08-03 ExxonMobil Research and Engineering Company Support de tube

Also Published As

Publication number Publication date
EP2589913A3 (fr) 2014-07-23
DE102011054984A1 (de) 2013-05-02

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