EP0152063A1 - Mit einer Schutzschicht gegen Erosion/Korrosion versehene Stahlplatte für Wasserdampf - Google Patents

Mit einer Schutzschicht gegen Erosion/Korrosion versehene Stahlplatte für Wasserdampf Download PDF

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Publication number
EP0152063A1
EP0152063A1 EP85101276A EP85101276A EP0152063A1 EP 0152063 A1 EP0152063 A1 EP 0152063A1 EP 85101276 A EP85101276 A EP 85101276A EP 85101276 A EP85101276 A EP 85101276A EP 0152063 A1 EP0152063 A1 EP 0152063A1
Authority
EP
European Patent Office
Prior art keywords
tiles
steel sheets
edges
tile
screwing
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
EP85101276A
Other languages
English (en)
French (fr)
Other versions
EP0152063B1 (de
Inventor
Jean-Jacques Marsault
Jacques Marjollet
François Carpentier
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.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
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 Stein Industrie SA filed Critical Stein Industrie SA
Publication of EP0152063A1 publication Critical patent/EP0152063A1/de
Application granted granted Critical
Publication of EP0152063B1 publication Critical patent/EP0152063B1/de
Expired 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
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal

Definitions

  • the present invention relates to a device for protecting steel sheets against erosion-corrosion in contact with water vapor, comprising rectangular elements of stainless metal with folded longitudinal edges, called “tiles”, mounted overlapping on the sheets steel, with possibilities of sliding relative thereto, fixed by screwing on studs welded to the inner wall of the steel sheets.
  • Patent FR-B -2345531 of the Applicant relates to a device for protecting steel sheets of this kind, constituting in particular an envelope containing heat exchangers, in which stainless elements called “tiles” are mounted overlapping on the steel sheets, having elasticity with respect thereto.
  • the tiles are preferably fixed by screwing on steel studs, welded to the internal wall, at regular intervals and parallel to the axis of the device formed by the steel sheets.
  • This device is of a relatively difficult assembly, the screw connections having to be carried out parallel to the wall.
  • the object of the present invention is to provide a device for fixing an easy assembly, and preferably ensuring better covering of the tiles at their ends and facilitating the differential expansion of the tiles with respect to the sheets to be protected.
  • the protection device according to the invention is characterized in that the screwing of the tiles is carried out perpendicular to the steel sheets.
  • the circular sheet 1 is protected by four rectangular tiles 2, 3, 4, 5 made of stainless steel. We can see the raised edges 6 and 7 of the tiles 2 and 3 along their long sides, the ends of these edges being cut.
  • the rim 7 is superimposed on the rim 6, except in the strip in which these tiles are covered by the adjacent tiles, as will be indicated below, where these edges are cut.
  • a longitudinal jumper 8 protects the connection of the two tiles.
  • the length of a tile can be for example 2 meters.
  • the fixing of the two tiles to each other and of the jumper to these is ensured by screwing screws in tapping of studs such as 9 welded on the sheet to be protected.
  • the edges of the tiles 6, 7 and the jumper 8 are provided at the location of these studs with fixing holes 11, 12, 13, 27, 28, 29 (see FIG. 2).
  • the central hole 11 is circular, the holes 12 and 13 near the ends of the tiles are oblong for allow longitudinal expansion.
  • the tiles In the middle of the opposite rim 6A, the tiles have a notch 27 of width substantially equal to the diameter of the unthreaded part 20 of the screw 18; the notches 28 and 29 near the ends allow the transverse dilations.
  • edges 14 and 15 of the tiles 2 and 3 include a recess of a height equal to the thickness of the tiles, overlapping on the edges facing the tiles 4 and 5, except in the junction area of the four tiles, where their edges are cut below the junction jumpers.
  • screws such as 18 (shown before screwing in a stud of the sheet), comprising a thread 19, a non-threaded part of larger diameter 20 and a hexagonal head 21.
  • FIG. 3 The fixing of the edges of the tiles and of the jumper superimposed on the base sheet is shown in FIG. 3, the screw being shown screwed into the corresponding stud.
  • the stud 9 is welded to the sheet to be protected by a weld bead 23.
  • the head 21 of the screw 18 is welded by a weld point 25 to the plate 24, which immobilizes the screw against unscrewing.
  • the edge of the tile 7 is pierced with holes such as 26, distributed along its length, ensuring communication between the volume included under the edges of the tiles and the internal volume of the container formed by the sheet 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Finishing Walls (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
EP85101276A 1984-02-10 1985-02-07 Mit einer Schutzschicht gegen Erosion/Korrosion versehene Stahlplatte für Wasserdampf Expired EP0152063B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402100A FR2559576A1 (fr) 1984-02-10 1984-02-10 Dispositif de protection de toles d'acier contre l'erosion-corrosion au contact de vapeur d'eau
FR8402100 1984-02-10

Publications (2)

Publication Number Publication Date
EP0152063A1 true EP0152063A1 (de) 1985-08-21
EP0152063B1 EP0152063B1 (de) 1987-11-11

Family

ID=9300954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101276A Expired EP0152063B1 (de) 1984-02-10 1985-02-07 Mit einer Schutzschicht gegen Erosion/Korrosion versehene Stahlplatte für Wasserdampf

Country Status (6)

Country Link
EP (1) EP0152063B1 (de)
DE (1) DE3560966D1 (de)
ES (1) ES295711Y (de)
FR (1) FR2559576A1 (de)
IN (1) IN162624B (de)
ZA (1) ZA85977B (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR745834A (fr) * 1931-12-09 1933-05-17 Brown Dispositif pour protéger contre la corrosion les plaques tubulaires en fer des échangeurs de chaleur
FR2345531A1 (fr) * 1976-03-24 1977-10-21 Stein Industrie Dispositif de protection de toles d'acier contre l'erosion-corrosion au contact de vapeur d'eau

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR745834A (fr) * 1931-12-09 1933-05-17 Brown Dispositif pour protéger contre la corrosion les plaques tubulaires en fer des échangeurs de chaleur
FR2345531A1 (fr) * 1976-03-24 1977-10-21 Stein Industrie Dispositif de protection de toles d'acier contre l'erosion-corrosion au contact de vapeur d'eau

Also Published As

Publication number Publication date
FR2559576A1 (fr) 1985-08-16
ES295711U (es) 1987-03-16
DE3560966D1 (en) 1987-12-17
IN162624B (de) 1988-06-18
EP0152063B1 (de) 1987-11-11
ES295711Y (es) 1987-11-01
ZA85977B (en) 1985-10-30

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