EP0224668A1 - Grille d'entretoisement pour tubes, par exemple de générateurs de vapeur - Google Patents

Grille d'entretoisement pour tubes, par exemple de générateurs de vapeur Download PDF

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Publication number
EP0224668A1
EP0224668A1 EP86112774A EP86112774A EP0224668A1 EP 0224668 A1 EP0224668 A1 EP 0224668A1 EP 86112774 A EP86112774 A EP 86112774A EP 86112774 A EP86112774 A EP 86112774A EP 0224668 A1 EP0224668 A1 EP 0224668A1
Authority
EP
European Patent Office
Prior art keywords
frame
bars
pipe spacing
grid according
spacing grid
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Withdrawn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
EP86112774A
Other languages
German (de)
English (en)
Inventor
Reinhold Becker
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.)
MAN Gutehoffnungshutte GmbH
Original Assignee
MAN Gutehoffnungshutte 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 MAN Gutehoffnungshutte GmbH filed Critical MAN Gutehoffnungshutte GmbH
Publication of EP0224668A1 publication Critical patent/EP0224668A1/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Withdrawn legal-status Critical Current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
    • F28F9/0136—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening formed by intersecting strips

Definitions

  • the invention relates to a pipe spacing grid for guiding pipes, for example in steam generators, the grid being formed from intersecting grid bars arranged in more than one plane and surrounded by a frame.
  • So-called spacers for the tubes of a tube bundle having a tube apparatus, in particular steam generator, are known (DE-PS 22 62 62l), in which the bars of the lattice are attached to an annular frame in such a way that the frame bores on the front and on the Has ring grooves on the inside and round bars or sleeves with lateral slots are inserted into the bores to form holders for the lattice bars, the lattice bars engaging in the slots.
  • the grille, frame and steam generator wall are rigidly interconnected.
  • the strips of the lattice have grooves on the outer edge zone of each grating, in which axially directed projections of the frame engage with radial play.
  • Grid and frame are made of different materials.
  • this grid-shaped spacer is complicated and costly.
  • the formation of the spacer forces the grille to be pre-assembled without the frame the turning can be done for final assembly.
  • the design of the spacer permits thermal compensation of the connection points of the spacer.
  • the object of the invention is to improve the known lattice-shaped spacers in such a way that a simple construction which is inexpensive due to the use of many identical parts can be offered, and in particular the assembly can be carried out easily. Nevertheless, the spacer should be able to move radially and axially under thermal expansion during operation without being forced on the guided pipes or the grid.
  • Each individual lattice bar and thus the entire lattice can move radially and axially in the groove of the lattice frame under thermal load.
  • the spiral grooves in the flat surfaces of the frame grooves serve to facilitate the flushing out of deposits and thus support the free thermal expansion of the bars.
  • the pipe spacer grid according to the invention is suitable for heat exchangers of any kind.
  • the frame is circular, rectangular or square.
  • An exemplary embodiment of the invention is explained in more detail below on the basis of the patent figures.
  • pipe spacing grids are shown in different geometric shapes.
  • a grid according to FIG. 1 with a circular grid frame (2) is explained in detail with reference to the other figures.
  • This type of pipe spacing grid is e.g. used for fixing and guiding straight or U-shaped pipes in steam generators.
  • the pipe spacer grid with a rectangular shape is suitable e.g. for tube apparatuses for cooling.
  • the crossing bars are labeled (l2) and the frame surrounding the screen is labeled (2).
  • the frame surrounding the screen is labeled (2).
  • contact angles (14) which serve to align and radially fix the spacing of the pipe spacing grille with respect to the (not shown) jacket of the steam generator.
  • Fig. 3 shows the radial section of the separation points (l) of the frame (2) in two half rings.
  • the two mutually parallel surfaces of the parting line are provided with a toothing (3), which has the task of optimally clamping the half rings into a full frame (2) with strain relief of the connecting screws (4) or the weld (indicated by the symbol) to guarantee.
  • Fig. 4 shows an alternative to the separation and connection of the half rings acc. Fig. 3.
  • the section runs axially here.
  • FIG. 5 The section in FIG. 5 along the line (5) of FIG. 1 shows the structural design of the lattice bars (l2) lying in two planes, encompassed by the frame (2) which is in one piece in the axial direction.
  • Circumferential grooves (l7) are made in the frame (2), into which the bars (l2) protrude.
  • Spiral grooves (6) can be seen in the flat surfaces of the grooves (l7), which serve to flush out the sediment.
  • the course of these grooves (6) can be seen in FIG. 6. Deposits in the pipe spacing grid can arise during the operation of the steam generator and these are then automatically rinsed out.
  • FIG. 8 and 9 show the axially aligned and radial fixing of the pipe spacing grid relative to the jacket of the steam generator with the aid of straight stops (l3) welded to the outer periphery of the frame (2) according to FIG. 8 and angular stops (l4) according to. Fig. 9.
  • Fig. 7 shows different versions of spacers between the individual bars (l2), which are attached in the region of the circumferential grooves (l7) of the frame (2) and ensure the exact distance dimension for the pipes of the steam generator to be guided.
  • the spacer (7) has a pin with which the spacer is inserted into the lattice bar (l2).
  • the spacer (8) is welded at right angles to the lattice bar (l2).
  • the spacer (9) has a peg-like approach with which it is inserted into the lattice rod (l2) and welded or riveted to it.
  • the lattice rod (l0) is bent at a right angle at the end by the length of the distance and thus forms the spacer.
  • the further alternative (II) consists of a lattice bar (l2) to which a spacer with a lattice bar attachment is welded in the longitudinal direction.

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)
EP86112774A 1985-11-13 1986-09-16 Grille d'entretoisement pour tubes, par exemple de générateurs de vapeur Withdrawn EP0224668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540229 DE3540229A1 (de) 1985-11-13 1985-11-13 Rohrabstandsgitter zum fuehren der rohre von beispielsweise dampferzeugern
DE3540229 1985-11-13

Publications (1)

Publication Number Publication Date
EP0224668A1 true EP0224668A1 (fr) 1987-06-10

Family

ID=6285865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112774A Withdrawn EP0224668A1 (fr) 1985-11-13 1986-09-16 Grille d'entretoisement pour tubes, par exemple de générateurs de vapeur

Country Status (3)

Country Link
EP (1) EP0224668A1 (fr)
BR (1) BR8605584A (fr)
DE (1) DE3540229A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103217051A (zh) * 2012-01-24 2013-07-24 阿尔斯通技术有限公司 用于管式交换器的交换管支承件和固定组件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262621A1 (de) * 1972-12-21 1974-07-11 Gutehoffnungshuette Sterkrade Roehrenapparat, insbesondere dampferzeuger
FR2223650A1 (fr) * 1973-03-30 1974-10-25 Siemens Ag
FR2340523A1 (fr) * 1976-02-04 1977-09-02 Commissariat Energie Atomique Echangeur de chaleur pour production de vapeur
EP0005681A1 (fr) * 1978-05-17 1979-11-28 Vincenzo Soligno Grille de support pour tubes et procédé de construction
DE2840146A1 (de) * 1978-09-15 1980-03-27 Balcke Duerr Ag Vorrichtung zur halterung eines rohrbuendels

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2337791C2 (de) * 1973-07-25 1978-07-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Dampferzeuger
IT1038778B (it) * 1975-06-09 1979-11-30 Breda Termomeccanica Spa Methodo per fabricare una griglia costituita da due materiali diversie capace di essere inizialmente rigida mentre dopo la messa in eser cizio permette dilatazioni termiche differenziali
DE2541399C2 (de) * 1975-09-17 1982-08-19 Hoechst Ag, 6000 Frankfurt Rohrbündel-Wärmeaustauscher
US4136736A (en) * 1976-04-29 1979-01-30 Phillips Petroleum Company Baffle
US4127165A (en) * 1976-07-06 1978-11-28 Phillips Petroleum Company Angular rod baffle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262621A1 (de) * 1972-12-21 1974-07-11 Gutehoffnungshuette Sterkrade Roehrenapparat, insbesondere dampferzeuger
FR2223650A1 (fr) * 1973-03-30 1974-10-25 Siemens Ag
FR2340523A1 (fr) * 1976-02-04 1977-09-02 Commissariat Energie Atomique Echangeur de chaleur pour production de vapeur
EP0005681A1 (fr) * 1978-05-17 1979-11-28 Vincenzo Soligno Grille de support pour tubes et procédé de construction
DE2840146A1 (de) * 1978-09-15 1980-03-27 Balcke Duerr Ag Vorrichtung zur halterung eines rohrbuendels

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103217051A (zh) * 2012-01-24 2013-07-24 阿尔斯通技术有限公司 用于管式交换器的交换管支承件和固定组件
FR2986062A1 (fr) * 2012-01-24 2013-07-26 Alstom Technology Ltd Support de tubes d'echanges et ensemble de maintien pour echangeur a tubes.
EP2620735A1 (fr) * 2012-01-24 2013-07-31 Alstom Technology Ltd Support de tube d'échange et ensemble de fixation pour échangeur de tube
CN103217051B (zh) * 2012-01-24 2015-05-20 阿尔斯通技术有限公司 用于管式交换器的交换管支承件和固定组件

Also Published As

Publication number Publication date
DE3540229A1 (de) 1987-05-14
BR8605584A (pt) 1987-08-18

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Inventor name: BECKER, REINHOLD