EP0979381A2 - Dispositif destine au support de tubes s'etendant sensiblement horizontalement - Google Patents

Dispositif destine au support de tubes s'etendant sensiblement horizontalement

Info

Publication number
EP0979381A2
EP0979381A2 EP98905137A EP98905137A EP0979381A2 EP 0979381 A2 EP0979381 A2 EP 0979381A2 EP 98905137 A EP98905137 A EP 98905137A EP 98905137 A EP98905137 A EP 98905137A EP 0979381 A2 EP0979381 A2 EP 0979381A2
Authority
EP
European Patent Office
Prior art keywords
pipes
sleeves
cooled
hanging elements
support
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
EP98905137A
Other languages
German (de)
English (en)
Other versions
EP0979381B1 (fr
Inventor
Norbert-Jochen Binder
Konstantin Grivas
Dietmar Rath
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.)
AE ENERGIETECHNIK GmbH
Original Assignee
AE Energietechnik 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 AE Energietechnik GmbH filed Critical AE Energietechnik GmbH
Publication of EP0979381A2 publication Critical patent/EP0979381A2/fr
Application granted granted Critical
Publication of EP0979381B1 publication Critical patent/EP0979381B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • F28F9/0138—Auxiliary supports for elements for tubes or tube-assemblies formed by sleeves for finned tubes

Definitions

  • the invention relates to a device for supporting essentially horizontally extending pipes, in particular finned pipes that run parallel to one another, such as pipes of a waste heat boiler, the stacked pipes having cylindrical sleeves pushed over at certain intervals and the pipes being attached to the corresponding sleeves Support the sleeves of the pipes underneath, the sleeves of the lowest row of pipes rest on supporting devices that are connected to a housing by hang elements, and the cylindrical sleeves have a circular cross-section.
  • AT 395 754 B discloses a perforated plate for the vertical support of horizontal tubes, preferably finned tubes, on a housing, in particular for waste heat boilers or condensers, in which the holes for the tubes are arranged according to a division scheme and have a slightly larger cross section than the outside diameter of the tube , known.
  • the invention has the disadvantage that the production of the perforated plates by chip removal is complex, the manufacturing tolerances are often so large that the remaining web between the holes is narrow and the necessary strength of the perforated plate at high temperatures, such as those prevailing in a waste heat boiler , is not given and there is a risk of deformation of the perforated plates. Furthermore, the minimum spacing of the holes is specified in terms of strength, so that a greater pipe density cannot be achieved.
  • the object of the present invention is now to develop a support for the pipes, which has the necessary strength at higher temperatures and whose manufacture is possible in comparison with AT 395 754 B with little effort.
  • the invention is characterized in that at least one carrying device and the associated hanging elements are at least partially cooled and the carrying device is designed as a flow-through collector and the hanging elements as supply and discharge pipes of this collector.
  • One embodiment of the invention is that cooled support devices or cooled suspension elements are combined with uncooled carriers or uncooled suspension elements.
  • the centers of the sleeves of a row of tubes can each be offset to the extent of a sleeve radius relative to the row of tubes below, which ensures a particularly dense arrangement of the tubes.
  • the centers of the sleeves of a row of tubes can also be arranged vertically above the sleeves of the row of tubes below. This aligned arrangement of the pipes results in a less tight packing of the pipes and thus a little more space for the exhaust gas flowing between the pipes.
  • the sleeves are welded together in the area of mutual contact lines. As a result, the mutual position of the sleeves is permanently determined.
  • the tubes are designed as finned tubes, at least two fins rest on a sleeve, so that the tube is stably supported.
  • Fig. 1 shows a section through the longitudinal axes of the sleeves of two adjacent tubes along the section line A-A in Fig. 2nd
  • Fig. 2 shows a section of a tube bundle in section normal to the longitudinal axis of the
  • Sleeves or pipes. 3 shows two tube bundles in section normal to the longitudinal axis of the sleeves or tubes in the area of a combined suspension device.
  • FIG. 4 shows two tube bundles in the area of an uncooled suspension device in section normal to the longitudinal axis of the sleeves or tubes and in a side view.
  • Fig. 1 two superimposed finned tubes 1, 1 ' are shown, which by fins
  • the inner diameter of the sleeves 3, 3 'of the ribs 2, 2 is compared to the outer diameter' is so selected that the finned tubes 1, 'slightly in sleeves 3, 3' pushed 1 and the finned tubes 1, 1 'in the longitudinal direction in the sleeves 3 , 3 ' can be tilted.
  • the longitudinal axis 4, 4 'of the finned tube 1, 1 ' lies below the longitudinal axis 5, 5 'of the sleeve 3, 3'.
  • the length of the sleeves 3, 3 ' is selected such that at least two ribs 2, 70 are supported on the sleeve 3, 3 ' .
  • Fig. 2 shows a section of a tube bundle in cross section in the area of the sleeves 3, 3 ' .
  • the tubes 1, 1 ' are arranged in horizontal rows, the center points of the sleeves 3, 3 ' of a row of tubes being offset in each case by the extent of a sleeve radius with respect to the row of tubes below.
  • each sleeve 3 with the exception of the sleeves located at the edge of the tube bundle, rests on two sleeves 3 'of the lower row of tubes and therefore each has a line of contact with a total of six other sleeves 3, 3 ' .
  • the position of these lines of contact is indicated by dashed lines in a sleeve 3 located in the middle of the tube bundle.
  • the sleeves are along these lines of contact
  • Fig. 3 shows two superimposed tube bundles, which are represented by the sleeves 3.
  • the lower tube bundle rests on a support device, which is designed as a collector 6, through which medium flows in the direction indicated by the arrow.
  • the collector 6 is fastened to at least two hanging elements 7, 8, one hanging element being designed as a feed pipe 7 and the other hanging element being designed as a discharge pipe 8.
  • the arrows indicate the direction of flow of the medium passed through.
  • the upper tube bundle is supported on a support device designed as an uncooled support 6 ' , the support 6 ' being supported by the hanging elements 7, 8.
  • the exhaust gas to be cooled flows from below through the tube bundle, the exhaust gas temperature temperature decreases due to the cooling through the pipes.
  • the support device of the overhead tube bundle can thus be designed as an uncooled support 6 ' .
  • Fig. 4 shows in the right part of two superimposed tube bundle, which are represented by the sleeves 3, wherein the supporting devices 6 'and the hanging members 7', 7 "un- cooled are formed.
  • the as profile beam 6 'formed carrier devices are connected to side members 7' attached, which are connected to the profile carrier 6 'of the tube bundle above or to the supporting grating 10 by means of tabs 7 " .
  • a profile carrier 6 ' , two side elements 7 ' and an element 9 form a support frame which holds the tube bundle or the sleeves 3. 3 ' together.
  • the side view of the tube bundle is shown in the area of the support devices or hanging elements.
  • the horizontal lines in the side elements 7 ' show the position of the center points of the individual rows of sleeves 3.
  • FIGS. 3 and 4 In the case of a waste heat boiler, several of the tube bundles shown in FIGS. 3 and 4 are arranged side by side and one above the other. The adjacent tube bundles are separated from one another by vertically arranged hanging elements 7, 7 ' , 7 " , 8. The hanging elements 7, 8 are fastened in a housing, for example by means of a supporting grate 10.

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)
  • Supports For Pipes And Cables (AREA)

Abstract

L'invention concerne un dispositif destiné au support de tubes s'étendant sensiblement horizontalement et parallèlement les uns aux autres, en particulier de tubes à ailettes, tels que les tubes d'une chaudière de récupération. Les tubes empilés les uns sur les autres présentent des manchons (3) glissés par dessus à des intervalles définis et ils reposent, par l'intermédiaire des manchons (3), sur les manchons correspondant à des tubes situés en-dessous. Les manchons de la rangée de tubes la plus basse reposent sur des dispositifs porteurs (6, 6') qui sont reliés à une enveloppe par l'intermédiaire d'éléments de suspension (7, 8). Le dispositif porteur (6, 6') et les éléments de suspension (7, 8) sont conçus de façon à être au moins partiellement refroidis et les manchons (3, 3') sont de section circulaire. Ce dispositif présente, étant donné qu'il est refroidi, la résistance nécessaire aux températures élevées et il peut être produit avec peu de travail.
EP98905137A 1997-03-07 1998-03-06 Echangeur de chaleur avec des tubes s'etendant sensiblement horizontalement Expired - Lifetime EP0979381B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT39097 1997-03-07
AT39097 1997-03-07
PCT/AT1998/000055 WO1998040685A2 (fr) 1997-03-07 1998-03-06 Dispositif destine au support de tubes s'etendant sensiblement horizontalement

Publications (2)

Publication Number Publication Date
EP0979381A2 true EP0979381A2 (fr) 2000-02-16
EP0979381B1 EP0979381B1 (fr) 2001-08-01

Family

ID=3489336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98905137A Expired - Lifetime EP0979381B1 (fr) 1997-03-07 1998-03-06 Echangeur de chaleur avec des tubes s'etendant sensiblement horizontalement

Country Status (10)

Country Link
EP (1) EP0979381B1 (fr)
AR (1) AR010901A1 (fr)
AT (1) ATE203815T1 (fr)
DE (1) DE59801128D1 (fr)
GR (1) GR3037027T3 (fr)
HR (1) HRP980121B1 (fr)
HU (1) HUP0000814A3 (fr)
ID (1) ID22739A (fr)
SI (1) SI20035A (fr)
WO (1) WO1998040685A2 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2268730A (en) * 1939-10-26 1942-01-06 La Mont Corp Cooled tube support
US4245694A (en) 1979-01-29 1981-01-20 Exxon Research & Engineering Co. Supports for closely spaced tubes
DE3029744A1 (de) * 1980-08-06 1982-03-11 Basf Ag, 6700 Ludwigshafen Desublimator fuer die gewinnung von sublimationsprodukten aus reaktionsgasen
US4368695A (en) * 1981-05-28 1983-01-18 Exxon Research And Engineering Co. Supporting the weight of a structure in a hot environment
AT395754B (de) 1991-09-27 1993-03-25 Waagner Biro Ag Auflagerung der rohre wie z.b. rippenrohre

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9840685A2 *

Also Published As

Publication number Publication date
DE59801128D1 (de) 2001-09-06
HUP0000814A2 (hu) 2000-08-28
WO1998040685A3 (fr) 1999-12-09
ATE203815T1 (de) 2001-08-15
WO1998040685A2 (fr) 1998-09-17
GR3037027T3 (en) 2002-01-31
AR010901A1 (es) 2000-07-12
SI20035A (sl) 2000-02-29
HUP0000814A3 (en) 2001-05-28
ID22739A (id) 1999-12-09
HRP980121B1 (en) 2001-12-31
HRP980121A2 (en) 1999-02-28
EP0979381B1 (fr) 2001-08-01

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