EP0105938A1 - Support de tubes d'un faisceau de tubes à l'intérieur d'une enveloppe - Google Patents

Support de tubes d'un faisceau de tubes à l'intérieur d'une enveloppe Download PDF

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Publication number
EP0105938A1
EP0105938A1 EP82109265A EP82109265A EP0105938A1 EP 0105938 A1 EP0105938 A1 EP 0105938A1 EP 82109265 A EP82109265 A EP 82109265A EP 82109265 A EP82109265 A EP 82109265A EP 0105938 A1 EP0105938 A1 EP 0105938A1
Authority
EP
European Patent Office
Prior art keywords
tubes
support rods
tube bundle
support
cross
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Withdrawn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
EP82109265A
Other languages
German (de)
English (en)
Inventor
Hans Georg Dipl.-Ing. Leffer
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.)
STAHL- und APPARATEBAU HANS LEFFER GmbH
Original Assignee
STAHL- und APPARATEBAU HANS LEFFER 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 STAHL- und APPARATEBAU HANS LEFFER GmbH filed Critical STAHL- und APPARATEBAU HANS LEFFER GmbH
Priority to EP82109265A priority Critical patent/EP0105938A1/fr
Publication of EP0105938A1 publication Critical patent/EP0105938A1/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Withdrawn legal-status Critical Current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
    • F28F9/0135—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening

Definitions

  • the invention relates to a holder for the tubes of a tube bundle within a container, in particular for a heat exchanger consisting of jacket and tube bundle or a reactor vessel, with support rods arranged in tiers, which extend through the spaces between parallel rows of tubes and the tubes on their outer circumference radially supportive touch.
  • the support rods of each tier are usually attached to a ring that surrounds the tube bundle and is attached to the inner wall of the container.
  • the support rods are arranged in the interior of the container through which a medium flows, the support rods represent a flow resistance which causes a pressure drop.
  • the levels of straight support bars, which cross each other in stages, have therefore been arranged at greater distances from one another (US Pat. No. 4,127,165).
  • DE-OS 27 06 049 US 4 127 165
  • each level of straight support rods consists of a plurality of intersecting support rods in closely spaced planes.
  • the purpose of supporting tubes of a tube bundle in container construction along their length is to protect the tubes through which a second medium flows against cracking and breakage.
  • the vibration problem is in the foreground, because the degree of non-uniformity of feed pumps and the level disturbance of the longitudinal flow due to the support rods can cause harmful resonance vibrations in the pipes.
  • the tubes are additionally subjected to buckling, since the medium flowing through the tubes is under high pressure, which oppositely loads the plates delimiting the interior of the container, in which the ends of the tubes are fastened.
  • the object of the invention is to provide a holder for the tubes of a tube bundle in container construction, in which the tubes have as few degrees of freedom as possible in the radial direction within one level of support rods.
  • the support rods of each floor are designed in such a way that they touch the tubes over a centering angle.
  • This line contact on a wrap angle more or less significantly reduces the possible degrees of freedom of the pipe compared to the previous mounting of the pipes with straight support rods.
  • the radial support of the tubes can be optimized according to the invention in that the support rods have a cross section with parallel side surfaces, which then form a flat radial support of the tubes on the centering angle dependent on the waveform of the support rods.
  • the waveform of support rods of round or angular cross-section in accordance with the invention is used in conjunction with the known feature of two groups of support rods which cross each other and are arranged in closely adjacent planes, an almost all-round support is obtained on a short length of the tubes Pipes over four circumferentially distributed centering angles, ie the pipes are firmly clamped within each holder in the sense of the statistics, whereby the calculation of the pipes on kink changes fundamentally, with the result that the thickness of the pipe wall can be reduced by reducing the outer diameter, which in turn offers the possibility of more pipes within one To provide tube bundle.
  • the firm clamping of the tubes within a holder with intersecting groups of corrugated support rods is of course more effective when using upright laid flat rods with flat support via the centering angle than when using round rods.
  • a most effective fixed clamping of pipes via wave-shaped support rods with a rectangular cross-section is obtained in that the support rods according to the further invention are laid in a common plane in the form of a wave iron grating, in that the rods penetrate in halves on both sides at the intersection points.
  • wave iron grille is derived from the well-known doormats from intersecting corrugated flat bars, such as those used in front of building exterior doors.
  • the corrugated support rods 2, 3, 4 and 5 have a radius of curvature on the shafts which corresponds to the radius R of the outer circumference of the tubes 1. In the case of the thickness of the support rods provided in FIG.
  • FIG. 1 initially stands for support rods 2 to 5 with the usual circular cross-section (FIG. 2a), which in the sense of inventing to improve the radial support of the tubes 1 between the support rods and the tubes has a curved, linear contact is present, namely when the support rods intersect in two closely spaced planes and support rods in all spaces between parallel rows of tubes at four circumferentially distributed centering angles ⁇ per tube.
  • a firm clamping of the tubes is obtained if the support rods 2 'to 5' have a cross section with parallel side surfaces, for example are flat rods. Then a flat support takes place in each plane of the support rods on the centering angles ⁇ (FIG. 2b).
  • the pipes 1 laid according to a square pattern according to FIG. 1 entail that relatively large free flow cross-sections 7 and gusset-shaped flow cross-sections 8 are formed for each holder, which also include increasing thickness of the support rods and smaller pipe distances. These relationships make it possible to optimize the radial support of the pipes at the expense of the flow cross-sections or vice versa.
  • FIG. 3 shows a so-called wave iron grille, in which the support rods 10, 11 with support rods 12, 13 have a rectangular cross section, that is to say flat rods, and can therefore be arranged in a common plane because they are halved on both sides at the intersection points 14 Penetrate slots 15, 16.
  • Fig. 4 shows the wave iron grid according to Fig. 3 with inserted tubes 1 of a tube bundle, which are laid in an equilateral triangle pattern. With this arrangement of tubes, a maximum number of tubes can be accommodated within a tube bundle, which is why this triangular pattern is preferred for reactor vessels.
  • the support rods 10 and 11 wrap around each tube at two diametrical centering angles ⁇ 1 , which are supplemented by centering angles ⁇ 2 , which are assigned to the support rods 12 and 13.
  • This optimal fixed clamping results from the fact that the thickness of the support rods is approximately equal to the clear distance between adjacent tubes.
  • the flow cross-sections within each mounting plane are reduced to the gusset-shaped free spaces 18, which would be sufficient for capacitors, for example.
  • Fig. 4 also shows the attachment of the support rods to a ring 17, which in turn is attached to the inner wall of the container shell, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supports For Pipes And Cables (AREA)
EP82109265A 1982-10-07 1982-10-07 Support de tubes d'un faisceau de tubes à l'intérieur d'une enveloppe Withdrawn EP0105938A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP82109265A EP0105938A1 (fr) 1982-10-07 1982-10-07 Support de tubes d'un faisceau de tubes à l'intérieur d'une enveloppe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82109265A EP0105938A1 (fr) 1982-10-07 1982-10-07 Support de tubes d'un faisceau de tubes à l'intérieur d'une enveloppe

Publications (1)

Publication Number Publication Date
EP0105938A1 true EP0105938A1 (fr) 1984-04-25

Family

ID=8189261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109265A Withdrawn EP0105938A1 (fr) 1982-10-07 1982-10-07 Support de tubes d'un faisceau de tubes à l'intérieur d'une enveloppe

Country Status (1)

Country Link
EP (1) EP0105938A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033542A (en) * 1989-02-28 1991-07-23 Mtu Motoren-Und Turbinen-Union Spacer supports for tubes of a matrix of a heat exchanger
US5449037A (en) * 1993-12-08 1995-09-12 Brown Fintube Corporation Heat exchanger tube spacer, separator, and support
US20170321971A1 (en) * 2014-12-30 2017-11-09 Joint Stock Company "Akme-Engineering" Heat Exchanger Tube Spacing Device (Varinats)
WO2022147070A1 (fr) * 2020-12-30 2022-07-07 Scientific Design Company, Inc. Support de grille ondulée pour réacteur à point d'ébullition vertical
CN115752068A (zh) * 2022-09-28 2023-03-07 福建立信换热设备制造股份公司 一种热交换器绕片管的支撑组件及采用该支撑组件的热交换器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101953A (en) * 1964-10-20 1968-02-07 Babcock & Wilcox Co Improvements in or relating to rod, pin and tube assemblies
GB1223045A (en) * 1967-07-31 1971-02-17 Alcatel S A Soc Suppression of vibrations in tubes
DE2045353A1 (de) * 1969-09-26 1971-04-15 Waagner Biro AG, Wien Rohrbündel Wärmetauscher
DE2052837A1 (en) * 1970-10-21 1972-04-27 Frank W Heat exchanger tube fixing - comprises flexible tubes transversely between rows of exchanger tubes
FR2130384A1 (fr) * 1971-03-19 1972-11-03 Ca Atomic Energy Ltd

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1101953A (en) * 1964-10-20 1968-02-07 Babcock & Wilcox Co Improvements in or relating to rod, pin and tube assemblies
GB1223045A (en) * 1967-07-31 1971-02-17 Alcatel S A Soc Suppression of vibrations in tubes
DE2045353A1 (de) * 1969-09-26 1971-04-15 Waagner Biro AG, Wien Rohrbündel Wärmetauscher
DE2052837A1 (en) * 1970-10-21 1972-04-27 Frank W Heat exchanger tube fixing - comprises flexible tubes transversely between rows of exchanger tubes
FR2130384A1 (fr) * 1971-03-19 1972-11-03 Ca Atomic Energy Ltd

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033542A (en) * 1989-02-28 1991-07-23 Mtu Motoren-Und Turbinen-Union Spacer supports for tubes of a matrix of a heat exchanger
US5449037A (en) * 1993-12-08 1995-09-12 Brown Fintube Corporation Heat exchanger tube spacer, separator, and support
US20170321971A1 (en) * 2014-12-30 2017-11-09 Joint Stock Company "Akme-Engineering" Heat Exchanger Tube Spacing Device (Varinats)
US10563929B2 (en) * 2014-12-30 2020-02-18 Joint Stock Company “Akme-Engineering” Heat exchanger tube spacing device (varinats)
WO2022147070A1 (fr) * 2020-12-30 2022-07-07 Scientific Design Company, Inc. Support de grille ondulée pour réacteur à point d'ébullition vertical
CN116802454A (zh) * 2020-12-30 2023-09-22 科学设计有限公司 用于立式沸腾反应器的波纹状格栅支架
JP2024502014A (ja) * 2020-12-30 2024-01-17 サイエンティフィック・デザイン・カンパニー・インコーポレーテッド 垂直沸騰反応器用の波形の格子状支持体
US12030028B2 (en) 2020-12-30 2024-07-09 Scientific Design Company, Inc. Corrugated grid support for vertical boiling reactor
EP4271957A4 (fr) * 2020-12-30 2024-09-04 Scientific Design LLC Support de grille ondulée pour réacteur à point d'ébullition vertical
CN115752068A (zh) * 2022-09-28 2023-03-07 福建立信换热设备制造股份公司 一种热交换器绕片管的支撑组件及采用该支撑组件的热交换器

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE DE FR GB IT NL SE

STAA Information on the status of an ep patent application or granted ep patent

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Effective date: 19850325

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Inventor name: LEFFER, HANS GEORG, DIPL.-ING.