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EP0415038B1 - Paroi formé d'un assemblage de tubes pour une enceinte de réaction à chaud - Google Patents

Paroi formé d'un assemblage de tubes pour une enceinte de réaction à chaud Download PDF

Info

Publication number
EP0415038B1
EP0415038B1 EP90113137A EP90113137A EP0415038B1 EP 0415038 B1 EP0415038 B1 EP 0415038B1 EP 90113137 A EP90113137 A EP 90113137A EP 90113137 A EP90113137 A EP 90113137A EP 0415038 B1 EP0415038 B1 EP 0415038B1
Authority
EP
European Patent Office
Prior art keywords
pipe wall
heat
subjected
pipes
wall according
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.)
Expired - Lifetime
Application number
EP90113137A
Other languages
German (de)
English (en)
Other versions
EP0415038A1 (fr
Inventor
Hans-Christoph Dr. Pohl
Klaus Köhnen
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers 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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of EP0415038A1 publication Critical patent/EP0415038A1/fr
Application granted granted Critical
Publication of EP0415038B1 publication Critical patent/EP0415038B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/10—Cooling; Devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/24—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/141—Anchors therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
    • F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
    • F27D2009/0024—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine with contiguous tubes, which may be separately welded one to the other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0051—Cooling of furnaces comprising use of studs to transfer heat or retain the liner

Definitions

  • the invention relates to a tube wall formed from juxtaposed tubes with a circular tube opening for hot reaction rooms, which is provided on the heat-exposed side with a temperature-resistant ceramic lining carried by metallic holding elements.
  • hot reaction rooms such as combustion rooms or reaction rooms of coal gasifiers
  • the tube walls of the hot reaction space are usually provided with pins which are applied by means of the arc welding process.
  • a maximum pen density of around 3000 pens per m2 can be achieved.
  • Experiences in the pinning of such pipe walls are reported, for example, in the journal “Welding and Cutting", Volume 20 (1968), pages 465-471.
  • a heat exchange plate for shaft furnace walls is known, which is arranged between the refractory furnace lining to be cooled and the furnace lining to be protected.
  • the inside of this plate which is designed as a cast steel construction, is designed as a cavity which is divided into channels by partitions in such a way that a stream of heat transfer fluid can flow vertically through the cavity in sinusoidal motion.
  • This embodiment does not correspond to a tube wall of the type mentioned.
  • the durability of the ceramic lining is of crucial importance for the economy of the hot reaction room and thus the entire system. This in turn essentially depends on the cooling effect exerted on the ceramic lining by the tube wall through which the coolant flows.
  • the invention is therefore based on the object of designing the tube wall for a hot reaction space of the generic type in such a way that more intensive cooling of the ceramic lining and thus a longer durability is achieved than is the case with known tube walls.
  • the invention is based on the knowledge that the heat dissipation, that is to say the cooling effect, the more effective the greater the ratio of the heat-dissipating surface to the heat-absorbing surface.
  • the invention proposes that the heat-applied side of the tube wall has a substantially flat surface.
  • the heat-treated flat side of the pipe wall i.e. the heat-absorbing surface is naturally considerably smaller than the heat-exposed side of known tube walls, in which this surface is formed by the curvatures of the tubes arranged next to one another, circular cross sections.
  • the specific heat dissipation is also more intensive, and the service life of the ceramic lining applied to the tube wall increases.
  • the design of the pipe wall according to the invention can be different. It is thus possible to design the individual tubes of the tube wall that are welded to one another as shaped tubes with a surface that is flat toward the heat-affected side.
  • the individual tubes of the tube wall from normal tubes of circular cross-section, the adjoining surfaces of which are leveled by appropriate processing, the flat, heat-treated side of the tube wall being formed by the existing recesses between the individual tubes filling welding layers.
  • Pins can be welded onto the flat, heat-treated side of the tube wall in a known manner as metallic holding elements for the ceramic lining.
  • ribs can also be provided as holding elements on the flat side. These ribs can also be provided with humps and / or recesses for better adhesion of the ceramic lining. The adhesion is further improved if the ribs on the side facing away from the tube wall are cut open and bent out.
  • the invention also proposes that the fins on the welding side be provided with a welded overlay which has the same material as the pipes of the pipe wall.
  • the invention is illustrated in the drawing, for example. 1 and 2 show two different embodiments of the tube wall according to the invention.
  • Ribs 3 made of humped sheet metal for holding the ceramic lining (not shown) are welded onto this flat, heat-treated side and are also provided with the above-mentioned recesses 4. With 5, the build-up welding, which has also already been mentioned, is indicated.
  • the embodiment of the tube wall according to the invention according to FIG. 2 is composed of normal tubes 6 of circular cross section, the adjoining surfaces 7 of which are leveled by appropriate processing, in particular by milling. This reduces the cross section of the depressions between the tubes, which are filled by welding layers indicated by 8. This also creates a flat, heat-treated surface of the pipe wall.
  • pins 9 which serve to hold the ceramic lining, also not shown here.
  • the ribs 10 in the left part of FIG. 2 again serve the same purpose. These can, as also shown in FIG. 1, be provided with recesses 11. However, as indicated at 12, they can also be cut open and bent out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Claims (8)

  1. Paroi de tubes formée de tubes juxtaposés à passage intérieur circulaire pour des chambres de réaction à chaud, qui est pourvue sur sa face exposée à la chaleur d'un garnissage céramique résistant à la température, maintenu par des éléments d'accrochage métalliques, caractérisée en ce que la face de la paroi de tubes exposée à la chaleur présente une surface essentiellement plane.
  2. Paroi de tubes suivant la revendication 1, caractérisée en ce que les tubes individuels de la paroi de tubes soudés l'un à l'autre sont des tubes profilés (1) avec une surface plane (2) orientée vers la face exposée à la chaleur.
  3. Paroi de tubes suivant la revendication 1, caractérisée en ce que les tubes individuels de la paroi de tubes soudés l'un à l'autre sont formés à partir de tubes normaux (6) à section circulaire, dont les faces (7) en contact l'une avec l'autre sont aplanies par un usinage approprié, la face plane de la paroi de tubes exposée à la chaleur étant formée par des cordons de soudure (8) remplissant les creux existant entre les tubes individuels.
  4. Paroi de tubes suivant l'une des revendications 1 à 3, caractérisée en ce que sur la face plane de la paroi de tubes exposée à la chaleur sont soudés des barreaux (9) constituant les éléments d'accrochage métalliques pour le garnissage céramique.
  5. Paroi de tubes suivant l'une des revendications 1 à 3, caractérisée en ce que sur la face plane de la paroi de tubes exposée à la chaleur sont soudées des nervures (3, 10) constituant les éléments d'accrochage métalliques pour le garnissage céramique.
  6. Paroi de tubes suivant la revendication 5, caractérisée en ce que les nervures (3, 10) sont pourvues de bosses et/ou d'évidements (4, 11).
  7. Paroi de tubes suivant la revendication 5, caractérisée en ce que les nervures (10) sont coupées et courbées sur le côté situé à l'opposé de la paroi de tubes.
  8. Paroi de tubes suivant la revendication 5, caractérisée en ce que les nervures (3, 10) sont pourvues, sur le côté du soudage, d'un rechargement de soudure, qui présente la même matière que les tubes (1, 6) de la paroi de tubes.
EP90113137A 1989-08-28 1990-07-10 Paroi formé d'un assemblage de tubes pour une enceinte de réaction à chaud Expired - Lifetime EP0415038B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928371A DE3928371A1 (de) 1989-08-28 1989-08-28 Rohrwand fuer heissreaktionsraeume
DE3928371 1989-08-28

Publications (2)

Publication Number Publication Date
EP0415038A1 EP0415038A1 (fr) 1991-03-06
EP0415038B1 true EP0415038B1 (fr) 1994-06-22

Family

ID=6388018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113137A Expired - Lifetime EP0415038B1 (fr) 1989-08-28 1990-07-10 Paroi formé d'un assemblage de tubes pour une enceinte de réaction à chaud

Country Status (7)

Country Link
US (1) US5058534A (fr)
EP (1) EP0415038B1 (fr)
DD (1) DD297505A5 (fr)
DE (2) DE3928371A1 (fr)
DK (1) DK0415038T3 (fr)
ES (1) ES2056309T3 (fr)
ZA (1) ZA905421B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238369C2 (de) * 1992-11-13 1996-09-26 Mtu Muenchen Gmbh Bauteil aus einem metallischen Grundsubstrat mit keramischer Beschichtung
AUPM393094A0 (en) * 1994-02-16 1994-03-10 University Of Melbourne, The Internal refractory cooler
DE9415517U1 (de) * 1994-09-24 1994-12-15 Evt Energie- Und Verfahrenstechnik Gmbh, 70329 Stuttgart Rohrwand
SE9504444D0 (sv) * 1995-12-12 1995-12-12 Essge Systemteknik Ab Panel
DE19821587A1 (de) * 1998-05-14 1999-11-18 Krc Umwelttechnik Gmbh Membranwand und Vorrichtung zum Umschließen einer Druckkammer
US6321691B1 (en) * 1999-01-14 2001-11-27 The Babcock & Wilcox Company Oxidation resistant low alloy attachments for boiler components
LU90381B1 (de) * 1999-04-01 2000-10-02 Wurth Paul Sa Gekuehlte Schachtofenwand
US6346807B1 (en) * 1999-10-22 2002-02-12 Bently Nevada Corporation Digital eddy current proximity system: apparatus and method
DE102008047784A1 (de) * 2008-07-02 2010-01-07 Hitachi Power Europe Gmbh Membranwand eines Großdampferzeugers
DE102012013494A1 (de) * 2012-07-09 2014-01-09 Kme Germany Gmbh & Co. Kg Kühlelement für einen Schmelzofen

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732514A (en) * 1926-12-16 1929-10-22 Int Comb Eng Corp Furnace water wall and wall element
US2053127A (en) * 1934-08-30 1936-09-01 Gen Electric Method of manufacturing a heating element
US2179638A (en) * 1935-06-07 1939-11-14 Koppers Co Inc Gas producer
US2239662A (en) * 1935-06-23 1941-04-22 Babcock & Wilcox Co Furnace
GB493444A (en) * 1936-06-04 1938-10-03 Babcock & Wilcox Ltd Improvements in or relating to tubes for heating and circulating water or other fluid
US2236186A (en) * 1937-02-20 1941-03-25 Jr Thomas E Murray Heat exchanger
US2149008A (en) * 1937-09-15 1939-02-28 Comb Eng Co Inc Tube with metallic block and method of attaching latter
US2267027A (en) * 1938-02-08 1941-12-23 Babcock & Wilcox Co Fluid heat exchange apparatus
GB545155A (en) * 1940-04-18 1942-05-13 Babcock & Wilcox Ltd Improvements in or relating to furnace wall tubes
US2391108A (en) * 1941-08-06 1945-12-18 Babcock & Wilcox Co Fluid cooled wall
JPS52137505A (en) * 1976-05-13 1977-11-17 Balcke Duerr Ag Tube wall comprising plurality of tubes extending horizontally or slantly in parallel with each other
DE2659827B1 (de) * 1976-07-16 1978-04-20 Fuchs Gerhard Lichtbogenschmelzofen
FR2371652A2 (fr) * 1976-11-23 1978-06-16 Sofresid Plaque de refroidissement pour parois de fours a cuve, notamment pour hauts-fourneaux
DE2808686C2 (de) * 1978-03-01 1982-03-04 Oschatz Gmbh, 4300 Essen Gasdichte Ofenwand für einen Industrieofen
US4711186A (en) * 1986-12-22 1987-12-08 Exxon Research And Engineering Company Refractory anchor

Also Published As

Publication number Publication date
DK0415038T3 (da) 1994-10-24
EP0415038A1 (fr) 1991-03-06
DD297505A5 (de) 1992-01-09
DE59006198D1 (de) 1994-07-28
ZA905421B (en) 1991-04-24
US5058534A (en) 1991-10-22
DE3928371A1 (de) 1991-03-07
ES2056309T3 (es) 1994-10-01

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