EP1139056B1 - Dispositif pour l'entrée de gaz chauds dans les tubes d'une surface chauffante, soudés à la plaque tubulaire d'une chaudière de récupération - Google Patents

Dispositif pour l'entrée de gaz chauds dans les tubes d'une surface chauffante, soudés à la plaque tubulaire d'une chaudière de récupération Download PDF

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Publication number
EP1139056B1
EP1139056B1 EP01107319A EP01107319A EP1139056B1 EP 1139056 B1 EP1139056 B1 EP 1139056B1 EP 01107319 A EP01107319 A EP 01107319A EP 01107319 A EP01107319 A EP 01107319A EP 1139056 B1 EP1139056 B1 EP 1139056B1
Authority
EP
European Patent Office
Prior art keywords
inlet
inlet pipe
tube plate
pipe
welded
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
EP01107319A
Other languages
German (de)
English (en)
Other versions
EP1139056A3 (fr
EP1139056A2 (fr
Inventor
R.-U. Dr. Hatermann
Günther Beckesch
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.)
Borsig GmbH
Original Assignee
Borsig 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 Borsig GmbH filed Critical Borsig GmbH
Publication of EP1139056A2 publication Critical patent/EP1139056A2/fr
Publication of EP1139056A3 publication Critical patent/EP1139056A3/fr
Application granted granted Critical
Publication of EP1139056B1 publication Critical patent/EP1139056B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems

Definitions

  • the invention relates to a device for the entry of hot gas in a Pipe plate of a waste heat boiler welded heating surface pipes, in which each heating surface tube is an inlet tube that has a conically narrowing and has inlet located at a distance from the tube plate, engages and at the insulation between the inlet pipes on the outside of the tube plate is provided.
  • a device is shown in Fig. 2, detail A of the article "Reduction in consumption for large-scale NH 3 systems by heat recovery in the waste heat system", DE-Z. Chem-Ing.-Techn. 56, (1984), No. 5, pp. 356-360.
  • the conically narrowing inlet of the inlet pipe is arranged at a predetermined distance from the pipe plate, so that the zone of high heat flow density lies at a safe distance from the pipe plate. Between the sections of the inlet pipes projecting beyond the outside of the tube plate, a ramming compound is introduced as insulation.
  • EP 0 567 674 A1 describes a heat exchanger for cooling in one Coal gasification plant known synthesis gas, in which the gas inlet-side tube plate on its outside from a layer individual, arranged side by side, on the outer edges abutting cuboid spouts is covered.
  • the ceramic material manufactured grommets each have a conical inlet opening, which is in narrowed a pipe section that protrudes into a heating surface pipe. Farther is the free space between the underside of the grommets and the outside of the Pipe plate filled with ceramic mats. Again, when replacing individual grommets ceramic mats are removed in an undefined manner.
  • 1-3 are in a curved area 1a a tube plate 1 stepped bores 2 formed.
  • Heating surface tubes 3 introduced, by means of welds 4 to an assembly Tube plate heating surface tube are welded.
  • Inlet pipes 5 are suspended in the heating surface tubes 3.
  • the inlet pipes 5 have a conically narrowing inlet 5a. In given Distance from the inlet opening are in even circumferential distribution outside beads 5b provided. When hanging the inlet pipe these beads 5b are supported on the weld 4, so that the Inlet opening at a predetermined distance from the outside of the perforated plate 1 is held.
  • the axial length in corresponds approximately to the distance between the beads 5b at the inlet opening.
  • the Inner diameter is adapted to the diameter of the inlet pipe and the The outside diameter is selected such that the insulating rings 6 in accordance with FIG touch hexagonal arrangement. It has been found that such Arrangement u. U. is sufficient for adequate protection of the insulating plate 1, even if there are no gussets 7 in the hexagonal arrangement Insulation material.
  • the ring Due to the elastic deformability of the wire mesh, the ring can over the conical narrowing or pushed over the beads and itself at the same time to the sweat 4 and to the outer surface of the Deform the inlet pipe.
  • the Inlet section 5a a straight cylindrical section.
  • a slotted support ring 8 is pushed onto the inlet pipe 5, the at the required distance from the inlet opening 5a with the Inlet pipe 5 is welded 8a. When the inlet pipe is attached, this is located Support ring 8 on the weld 4.
  • the ring-like insulating piece 9 made of ceramic material is in the Embodiment according to FIGS. 4-6 from an external Hexagonal section 9a and one engaging in the stepped bore 2 Cylinder section 9b.
  • the hexagonal section 9a preferably has an inner opening, which initially has a conical extension 9c.
  • section 9a allows an arrangement can be achieved, which according to FIG. 6 has no gusset, but the entire Protects the outside of the tube sheet 2.
  • the axial lengths of the rings 6 and 6 respectively Hexagonal sections 9a selected so that even with the step arrangement 1 or 4, the contact of the cylinder surfaces or the 4 or 6 is reached.
  • the positive support via beads can also be used of ceramic insulating pieces. It would then have to be on the Inner surface of the insulating pieces 9 formed only corresponding axial grooves his. The ceramic piece could then be rotated relatively after being pushed over, so that the beads are no longer under the grooves.
  • the Support ring according to the embodiments of FIGS. 4-6 also when in use of an insulating piece made of wire mesh. Rings out Wire mesh are z. B. from Max Rhodius GmbH & Co.,hotburger Metallstrickerei KG manufactured.
  • the inside of the tube sheet 1 is still one buffle plate 10 arranged at a distance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heat Treatment Of Articles (AREA)
  • Exhaust Gas After Treatment (AREA)

Claims (8)

  1. Dispositif pour l'admission de gaz chauds dans des tubes de corps de chauffe (3) soudés avec une plaque tubulaire (1) d'une chaudière de récupération, dans lequel un tube d'admission (5), qui présente une entrée rétrécie en cône et située à distance de la plaque tubulaire (1), s'engage dans chaque corps de chauffe (3), dans lequel une isolation est placée entre les tubes d'admission (5) sur le côté extérieur de la plaque tubulaire (1), les tubes d'admission (5) sont accrochés dans la plaque tubulaire (1) et s'appuient par coopération de forme (5b, 8) sur le sous-groupe plaque tubulaire/tube de corps de chauffe (1, 3), caractérisé en ce qu'une pièce d'isolation annulaire (6, 9) est prévue sur chaque tube d'admission (5) et que la pièce d'isolation annulaire (6, 9) est emmanchée sur le tube d'admission (5) avant l'accrochage.
  2. Dispositif suivant la revendication 1, caractérisé en ce que le tube d'admission (5) est muni de moulures (5a) dirigées vers l'extérieur pour son appui par coopération de forme.
  3. Dispositif suivant la revendication 1, caractérisé en ce qu'une bague d'appui (8) est soudée sur le tube d'admission (5) pour l'appui par coopération de forme de ce dernier.
  4. Dispositif suivant l'une au moins des revendications 1 à 3, caractérisé en ce qu'une bague cylindrique (6) en un matériau fibreux métallique ou céramique d'une résistance thermique élevée, est emmanchée sur le tube d'admission (5).
  5. Dispositif suivant la revendication 4, caractérisé en ce que la bague d'isolation cylindrique (6) se compose de mailles métalliques.
  6. Dispositif suivant l'une des revendications 1 à 3, caractérisé en ce qu'une pièce d'isolation annulaire (9) en matériau tout céramique est emmanchée sur le tube d'admission.
  7. Dispositif suivant la revendication 6, caractérisé en ce que la pièce d'isolation annulaire(9) se compose d'une section hexagonale extérieure (9a) et d'une section rectiligne cylindrique (9b) s'y raccordant, vu dans la direction d'écoulement des gaz chauds.
  8. Dispositif suivant l'une des revendications 1 à 7, caractérisé en ce que la plaque tubulaire (1) présente une zone cintrée (1a) contre la direction d'afflux des gaz chauds.
EP01107319A 2000-03-28 2001-03-23 Dispositif pour l'entrée de gaz chauds dans les tubes d'une surface chauffante, soudés à la plaque tubulaire d'une chaudière de récupération Expired - Lifetime EP1139056B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10015343 2000-03-28
DE10015343A DE10015343C2 (de) 2000-03-28 2000-03-28 Abhitzkessel mit in einer Rohrplatte verschweißten Heizflächenrohren

Publications (3)

Publication Number Publication Date
EP1139056A2 EP1139056A2 (fr) 2001-10-04
EP1139056A3 EP1139056A3 (fr) 2003-08-27
EP1139056B1 true EP1139056B1 (fr) 2004-07-07

Family

ID=7636670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107319A Expired - Lifetime EP1139056B1 (fr) 2000-03-28 2001-03-23 Dispositif pour l'entrée de gaz chauds dans les tubes d'une surface chauffante, soudés à la plaque tubulaire d'une chaudière de récupération

Country Status (6)

Country Link
EP (1) EP1139056B1 (fr)
AT (1) ATE270768T1 (fr)
DE (2) DE10015343C2 (fr)
DK (1) DK1139056T3 (fr)
ES (1) ES2223670T3 (fr)
PT (1) PT1139056E (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8291968B2 (en) 2005-08-09 2012-10-23 Eestech, Inc. Distributor for a flowable medium
AU2006279260B2 (en) * 2005-08-09 2010-06-17 Eestech, Inc. A distributor for a flowable medium
FI123881B (fi) * 2009-06-04 2013-11-29 Metso Power Oy Voimalaitoksen kattilan palamisilman savukaasu-ilmaesilämmityslaitteisto ja sen ilmanohjainholkki

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184568B (de) * 1962-02-17 1964-12-31 Maschf Augsburg Nuernberg Ag Schweissverbindung fuer in eine Wand, z. B. in einen Kessel- oder Rohrboden, eingesteckte Rohre
US3707186A (en) * 1971-01-18 1972-12-26 Foster Wheeler Corp Cooling tube ferrule
DE3519547C1 (en) * 1985-05-29 1987-01-02 Mannesmann Ag Protective sleeve for heat exchange tubes
DE59200074D1 (de) * 1992-04-29 1994-03-31 Borsig Babcock Ag Wärmetauscher zum Kühlen von in einer Kohlevergasungsanlage erzeugtem Synthesegas.
US5647432A (en) * 1996-04-10 1997-07-15 Blasch Precision Ceramics, Inc. Ceramic ferrule and ceramic ferrule refractory wall for shielding tube sheet/boiler tube assembly of heat exchanger

Also Published As

Publication number Publication date
DE10015343A1 (de) 2001-10-11
ATE270768T1 (de) 2004-07-15
DK1139056T3 (da) 2004-10-25
EP1139056A3 (fr) 2003-08-27
EP1139056A2 (fr) 2001-10-04
ES2223670T3 (es) 2005-03-01
DE50102777D1 (de) 2004-08-12
DE10015343C2 (de) 2002-05-23
PT1139056E (pt) 2004-11-30

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