EP0415038A1 - 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

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Publication number
EP0415038A1
EP0415038A1 EP90113137A EP90113137A EP0415038A1 EP 0415038 A1 EP0415038 A1 EP 0415038A1 EP 90113137 A EP90113137 A EP 90113137A EP 90113137 A EP90113137 A EP 90113137A EP 0415038 A1 EP0415038 A1 EP 0415038A1
Authority
EP
European Patent Office
Prior art keywords
pipe wall
heat
tubes
ribs
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.)
Granted
Application number
EP90113137A
Other languages
German (de)
English (en)
Other versions
EP0415038B1 (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 peculiar to 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 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.
  • the shelf life 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.
  • this surface is formed by the curvatures of the tubes arranged next to one another, circular cross sections.
  • the ratio of heat-dissipating to heat-absorbing surface is comparatively large in the pipe wall according to the invention.
  • 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 which are welded to one another as shaped tubes with a surface which is flat towards 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 pipe wall are cut open and bent out.
  • the invention also proposes that the ribs 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. 5 also indicates the build-up welding already mentioned.
  • 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 machining, 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 tube wall.
  • pins 9 are shown, which are used to hold the ceramic lining, also not shown here.
  • the ribs 10 in the left part of FIG. 2 again serve the same purpose. As also shown in FIG. 1, these can 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)
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
DE3928371 1989-08-28
DE3928371A DE3928371A1 (de) 1989-08-28 1989-08-28 Rohrwand fuer heissreaktionsraeume

Publications (2)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698105A1 (fr) * 1992-11-13 1994-05-20 Mtu Muenchen Gmbh Pièce en un substrat de base métallique comportant un revêtement céramique.
WO1997021965A1 (fr) * 1995-12-12 1997-06-19 Essge Systemteknik Ab Revetement de four
LU90381B1 (de) * 1999-04-01 2000-10-02 Wurth Paul Sa Gekuehlte Schachtofenwand

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 & Verfahrenstech Rohrwand
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
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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
FR2418913A1 (fr) * 1978-03-01 1979-09-28 Oschatz Gmbh Paroi etanche aux gaz pour fours industriels
US4711186A (en) * 1986-12-22 1987-12-08 Exxon Research And Engineering Company Refractory anchor

Family Cites Families (9)

* 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
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
US4135575A (en) * 1976-05-13 1979-01-23 Balcke-Durr Aktiengesellschaft Tube wall made of tubes which extend parallel to one another and horizontal to inclined

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
FR2418913A1 (fr) * 1978-03-01 1979-09-28 Oschatz Gmbh Paroi etanche aux gaz pour fours industriels
US4711186A (en) * 1986-12-22 1987-12-08 Exxon Research And Engineering Company Refractory anchor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698105A1 (fr) * 1992-11-13 1994-05-20 Mtu Muenchen Gmbh Pièce en un substrat de base métallique comportant un revêtement céramique.
WO1997021965A1 (fr) * 1995-12-12 1997-06-19 Essge Systemteknik Ab Revetement de four
LU90381B1 (de) * 1999-04-01 2000-10-02 Wurth Paul Sa Gekuehlte Schachtofenwand

Also Published As

Publication number Publication date
US5058534A (en) 1991-10-22
DE59006198D1 (de) 1994-07-28
ZA905421B (en) 1991-04-24
DD297505A5 (de) 1992-01-09
DE3928371A1 (de) 1991-03-07
EP0415038B1 (fr) 1994-06-22
DK0415038T3 (da) 1994-10-24
ES2056309T3 (es) 1994-10-01

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