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EP1493968B1 - Membrane de paroi - Google Patents

Membrane de paroi Download PDF

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Publication number
EP1493968B1
EP1493968B1 EP04076914A EP04076914A EP1493968B1 EP 1493968 B1 EP1493968 B1 EP 1493968B1 EP 04076914 A EP04076914 A EP 04076914A EP 04076914 A EP04076914 A EP 04076914A EP 1493968 B1 EP1493968 B1 EP 1493968B1
Authority
EP
European Patent Office
Prior art keywords
coating
membrane wall
steam pipe
rvs
welding
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.)
Revoked
Application number
EP04076914A
Other languages
German (de)
English (en)
Other versions
EP1493968A2 (fr
EP1493968A3 (fr
Inventor
Huibregt Van Hengel
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.)
VISSER AND SMIT HANAB BV
Original Assignee
VISSER AND SMIT HANAB BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33432539&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1493968(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by VISSER AND SMIT HANAB BV filed Critical VISSER AND SMIT HANAB BV
Publication of EP1493968A2 publication Critical patent/EP1493968A2/fr
Publication of EP1493968A3 publication Critical patent/EP1493968A3/fr
Application granted granted Critical
Publication of EP1493968B1 publication Critical patent/EP1493968B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05001—Preventing corrosion by using special lining materials or other techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M2900/00—Special features of, or arrangements for combustion chambers
    • F23M2900/05004—Special materials for walls or lining

Definitions

  • the coat-welding of the RVS is carried out MIG welding and TIG disposed.
  • helical coat-welding means a.o., a weld bead extending continuous in radial circumferential direction in such a helical manner in axial direction, that succeeding windings of the weld bead mutually contact or (slightly) overlap with the adjacent longitudinal edges, such that a continuous coating of substantially constant thickness is provided.
  • the membrane wall is designed for a waste incinerator.
  • the membrane wall serves as sideway limit of the fire space, wherein a temperature in the range of e.g. 700-800°C can prevail.
  • the membrane wall is cooled by the steam running through the vertical upward extending steam pipes.
  • the membrane wall can however also be provided for other incinerators and possibly be cooled by another fluid flowing through the pipes, e.g. water.
  • the membrane wall can be provided as separator wall or as bulk head (at one or both sides exposed to the fire).
  • the same RVS-composition is used for both the coat-welding and the connection strip, having a high corrosion and abrasive strength in relation with the environment within the incinerator.
  • RVS welding material to weld the connection strip to the steam pipe, preferably with a composition substantially equal to that of the RVS applied in the coat-welded clad layer or the connection strip.
  • the coat-welding of the RVS clad layer and/or the attachment of the connection strip to the steam pipe by welding is preferably carried out in a protective environment, e.g. below a powder cover, to avoid environmental attack of the welding material or surrouding steel. This way of protection is known as such and needs therefor no further elaboration.
  • RVS strip The importance of a completely RVS strip is a.o. that therewith one can avoid that during fixing of the steam pipe to the connection strip by welding the carbon contents within the weld seal becomes too high due to diffusion of carbon from the surrouding steel.
  • RVS types contain Fe, C and alloy components and also Ni and Cr.
  • connection strip has a width of about 30 mm at the most. If the width is too large, the connection strip will overheat and early collapse.
  • connection strip must suffice a predetermined straightness and the surface of the RVS welded onto the steam pipe must suffice a predetermined smoothness and layer thickness.
  • the layer thickness is preferably between 1.8 and 2.5 mm.
  • the drawing shows in fig. 1 a part of a membrane wall 1 in perspective. It is made of mutual parallel extending steam pipes 2 of carbon steel, all around coated by clad-welding of RVS. Slod RVS connection strips 3 are welded to the mutually spaced steam pipers 2.
  • the weld connections are refered 4 (four in steam pipe longitudinal direction extending weld connections for each connecting strip 3 between two steam pipes).
  • Fig. 2 shows a steam pipe 2 in detail, showing the helical extending weld bead 5 of the clad-welded RVS coating.
  • the clad-welded coating provides a continuous smooth layer.
  • the strip 3 is made of a composition according to Inconel 625 or 629 or others from the 600- or 700-series. This is also true for the coating or weld connection.
  • the coating of weld connection or strip contains iron (Fe) less than 10 wt%, preferably less than about 7.5 wt%, more preferably less than about 5.5 wt%, such as less than about 7 wt% or about 5 wt%.
  • the weld rod used for welding contains preferably Fe less than 3 wt%, e.g. less than about 1.5 wt%, such as less than about 1

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)
  • Laminated Bodies (AREA)

Claims (9)

  1. Tuyau de vapeur d'acier du carbone pour une membrane de paroi d'une incinération, qui est équipée d'un revêtement d'acier inoxydable, par exemple Inconel 625, caractérise en ce que le revêtement sur le tuyau de vapeur est une chenille de la soudure qui s'étendant qu'une hélice.
  2. Tuyau de vapeur comme revendication 1, en ce que pendant la souder à recouvrir l'acier inoxydable est MIG soudé et TIG évacué.
  3. Tuyau de vapeur comme revendication 1 ou 2, en ce que le fil de soudure exploité contient moins de 3 poids % Fe.
  4. Tuyau de vapeur comme une de revendications 1-3, en ce que la soudure à recouvrir faite une couche continu lisse.
  5. Membrane de paroi d'une incinération, avec tuyaux de vapeur comme revendications 1-4.
  6. Membrane de paroi comme revendication 5, en ce que les tuyaux de vapeur côte à côte sont soudé l'une à l'autre avec une bande d'union de 100% acier inoxydable, de préférence maximal 30 mm large.
  7. Membrane de paroi comme revendication 5 ou 6, en ce que pour le revêtement et la bande d'union le même composition d'acier inoxydable est exploité, de préférence haute inoxydable et inusable en rapport de la milieu règne dans la incinération.
  8. Membrane de paroi comme une de revendications 5-7, en ce que pour souder la bande d'union à le tuyau de vapeur, matériau de soudé d'acier inoxydable est exploité, de préférence d'une composition principalement égal à la matériau d'acier inoxydable exploité pour souder à recouvrir la couche de couverture ou bande d'union.
  9. Membrane de paroi comme une de revendications 1-8, en ce que le revêtement ou bande ou union de soudure a moins de 10 poids % Fe (fer).
EP04076914A 2003-07-04 2004-07-04 Membrane de paroi Revoked EP1493968B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1023823 2003-07-04
NL1023823 2003-07-04

Publications (3)

Publication Number Publication Date
EP1493968A2 EP1493968A2 (fr) 2005-01-05
EP1493968A3 EP1493968A3 (fr) 2005-06-08
EP1493968B1 true EP1493968B1 (fr) 2008-03-12

Family

ID=33432539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04076914A Revoked EP1493968B1 (fr) 2003-07-04 2004-07-04 Membrane de paroi

Country Status (3)

Country Link
EP (1) EP1493968B1 (fr)
AT (1) ATE389150T1 (fr)
DE (1) DE602004012349T2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1785668A1 (fr) 2005-08-23 2007-05-16 VISSER & SMIT HANAB B.V. Châssis de soudage pour une paroi de membrane
DE102008047784A1 (de) 2008-07-02 2010-01-07 Hitachi Power Europe Gmbh Membranwand eines Großdampferzeugers
CN101913060A (zh) * 2010-08-04 2010-12-15 江苏申港锅炉有限公司 锅炉中膜式水冷壁的加工方法
NL2021445B1 (en) 2018-08-09 2020-02-20 Awect Bv High pressure heating installation comprising an advanced panel design and cladding thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB557853A (en) * 1941-08-06 1943-12-08 Babcock & Wilcox Ltd Improvements in or relating to furnace wall tubes
US2588421A (en) * 1947-12-19 1952-03-11 Metallizing Engineering Co Inc Application of sprayed metal coatings to solid objects
US3139866A (en) * 1958-05-03 1964-07-07 Babcock & Wilcox Ltd Studded tube construction with studs of alcr
US3304920A (en) * 1965-12-29 1967-02-21 Combustion Eng Chemical recovery unit
US3404663A (en) * 1965-12-29 1968-10-08 Combustion Eng Prevention of furnace corrosion
US4793269A (en) * 1988-02-29 1988-12-27 Westinghouse Electric Corp. Kiln for waste disposal
FI89519C (fi) * 1992-02-19 1997-08-19 Ahlstrom Machinery Oy Foerfarande och anordning foer oekande av saekerheten i en aotervinningspanna foer avlut
FI102396B1 (fi) * 1995-03-22 1998-11-30 Tampella Power Oy Menetelmä ja järjestely soodakattilan jäähdytysväliainekierrossa

Also Published As

Publication number Publication date
DE602004012349T2 (de) 2009-05-14
EP1493968A2 (fr) 2005-01-05
DE602004012349D1 (de) 2008-04-24
ATE389150T1 (de) 2008-03-15
EP1493968A3 (fr) 2005-06-08

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