EP0166133A1 - Paroi intérieure d'un foyer de chaudière - Google Patents

Paroi intérieure d'un foyer de chaudière Download PDF

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Publication number
EP0166133A1
EP0166133A1 EP85105633A EP85105633A EP0166133A1 EP 0166133 A1 EP0166133 A1 EP 0166133A1 EP 85105633 A EP85105633 A EP 85105633A EP 85105633 A EP85105633 A EP 85105633A EP 0166133 A1 EP0166133 A1 EP 0166133A1
Authority
EP
European Patent Office
Prior art keywords
air
plate
nozzle
boiler
wall
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
EP85105633A
Other languages
German (de)
English (en)
Other versions
EP0166133B1 (fr
Inventor
Theodor Koch
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.)
Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to AT85105633T priority Critical patent/ATE42631T1/de
Publication of EP0166133A1 publication Critical patent/EP0166133A1/fr
Application granted granted Critical
Publication of EP0166133B1 publication Critical patent/EP0166133B1/fr
Expired 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
    • 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
    • F23M5/085—Cooling thereof; Tube walls using air or other gas as the cooling medium

Definitions

  • the present invention relates to a plate for arranging on the inside of the boiler furnace, in which plate at least three side surfaces are designed as guide surfaces for blowing out with compressed air and are provided to form an air nozzle with the adjacent plate, as well as a boiler furnace interior wall equipped with this plate and a Method of operating a boiler.
  • combustion chamber walls are conventionally formed from ceramic mass or refractory stones. Due to the possible local overheating, the fly ash melts and slag deposits form with the known negative consequences.
  • a more recent construction (DE-A-2 317 064) discloses a metallic plate wall as a lining of the inner walls of the combustion chamber, in particular in incinerators for burning garbage, which plates have rectangular or square shapes and are provided with special edge cams in order to separate between two successive plates to define in each case rectangular-slot-shaped nozzles, the outflow direction of which is perpendicular to the plate surface facing the combustion chamber, the relevant nozzle cross section being temperature-dependent in accordance with the respective plate dimensions.
  • the present invention has set itself the goal of creating a plate, which temperature-invariably doses the minimum amount of air required for cooling the plates and for the combustion process, also metered in direction, to the combustion chamber Was able.
  • Such a plate according to the invention is characterized in that two of the side surfaces are at least approximately perpendicular to the adjacent plate surface part to be turned towards the interior of the boiler and at least one side surface in the area of the air outlet edge is substantially inclined to this surface part.
  • a boiler furnace interior wall equipped with plates of this type is characterized according to the invention in that, in the case of rectangular or square plates, one or more slit-shaped nozzles are formed between two plates arranged next to or below one another, the cross-section of which is angled or curved, the smallest cross-section during operation in remains essentially constant in terms of temperature.
  • a part of a combustion chamber of a waste incineration plant is shown, with a section from a side wall 2.
  • the combustion chamber side wall 2 is provided against the combustion chamber 1 with a steel frame 4, which, as Fig. 3 shows, arranged at a corresponding distance from each other -Iron 5 with cross struts 6.
  • This U-iron 5 are embedded in the masonry 7.
  • curved lower side wall panels 10 and 11 are provided for lining, with a combustion chamber wall 12 facing the combustion chamber 1 and a rear wall 13 which is equipped with two hooks 14 and a number of cooling pins 15.
  • the pins 15 are arranged in rows offset from one another in order to obtain optimal heat transfer numbers with regard to the air which is passed through.
  • the lower end of the curved side wall panels 10 and 11 forms a flat horizontal lower side end wall 17, while a horizontal upper end wall 20 is provided at the top.
  • This wall 20 runs in a strip-shaped part 21 with a parallel Front wall 22 and rear wall 23, which walls 22 and 23 merge into the slope of the combustion chamber wall 24.
  • a first vertically hanging, flat side wall plate 40 or 28 is arranged, with a flat inclined lower side end wall 29, which is connected to the upper oblique edge part of the underlying plate 10 or 11 or the plate 40 or 28, as can be seen in FIG. 1, each defines a horizontal louvre nozzle 26.
  • the corresponding arrows show the direction of the air flowing out.
  • the nozzle inlet 32 of this louvre nozzle 26 runs vertically in order to then pass into the oblique nozzle mouth 34 via a kink 33.
  • the side wall panels 28 are provided with vertical side surfaces 36, which are terminated on both sides with a covering strip 37. With this strip 37, they cover a corresponding edge part of second rectangular, vertical side wall panels 40 and form with their side surfaces a slot nozzle 42 with a nozzle mouth 43 and a corresponding kink 44.
  • the nozzle is a temperature invariant with regard to its narrowest cross section, so that in this regard too here the amount of air flowing through remains constant.
  • nozzles By fitting round hats 35 in the end regions of the nozzle-forming surfaces, nozzles can be closed by means of appropriate cords 46, as shown in FIG. 5.
  • the front panels 10, 11, 28 and 40 have overlaps. This prevents foreign bodies from entering the slot nozzles 26 and 42, respectively.
  • the air vents enter the combustion chamber in two directions through the louvers formed by the overlap.
  • the overlap enables thermal expansion without changing the air gap cross-section. Due to the small air slots with spacers 50, a high pressure build-up behind the front panels is possible, with the resultant uniform air distribution.
  • Air is led into the slot nozzle through the outer insulation wall.
  • the air absorbs the radiant heat emitted by the ceramic wall 7 in this case.
  • the warmed air is redirected and sweeps past the inside of the sloping plate and the inside of the front plate, is further heated by the heat given off by the plates and the cooling cams or pins, and flows through the air slots in two directions into the combustion chamber.
  • This air forms one in front of the front panels Air curtains (inclined nozzles 26) as they penetrate more deeply into the combustion chamber through the vertical nozzles 42.
  • This air takes part in the combustion as secondary air.
  • the air is blown back from the firebox walls by the air blown in two directions.
  • the radiant heat of the combustion chamber 1 is partially suppressed by the air curtain placed in front of the front panels.
  • the heat of the front panels, sloping panels and the ceramic wall, which is still absorbed by radiation, is reflected in the combustion chamber.
  • the air can be supplied from below.
  • the air absorbs the radiant heat from the ceramic wall, is passed through it, cools the front panels, partly passes through the air slots, which are optionally formed in size, and partly under the combustion grate into the combustion chamber, which air can be used as a downwind (primary air) .
  • combustion air can be preheated cost-effectively. Secondary air is supplied to the combustion at the hottest points in the combustion chamber and slag caking is avoided.
  • These panels can be used for side walls, lintels, secondary air beams, front and rear walls, deflections, etc.
  • the air supply can be from above, below, or from the side or combined.
  • Such incinerators which are intended in particular for burning waste, coal and wood, can be operated with a small amount of air as cooling, which is made possible by the special cooling effect of the cooling plates. As a result, the temperature of these panels on the combustion chamber side will not fall below 800 ° C during operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Supply (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
EP85105633A 1984-05-18 1985-05-08 Paroi intérieure d'un foyer de chaudière Expired EP0166133B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105633T ATE42631T1 (de) 1984-05-18 1985-05-08 Kesselfeuerraum-innenwand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH245584 1984-05-18
CH2455/84 1984-05-18

Publications (2)

Publication Number Publication Date
EP0166133A1 true EP0166133A1 (fr) 1986-01-02
EP0166133B1 EP0166133B1 (fr) 1989-04-26

Family

ID=4234216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105633A Expired EP0166133B1 (fr) 1984-05-18 1985-05-08 Paroi intérieure d'un foyer de chaudière

Country Status (3)

Country Link
EP (1) EP0166133B1 (fr)
AT (1) ATE42631T1 (fr)
DE (1) DE3569816D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010022523A2 (fr) * 2008-08-26 2010-03-04 Mokesys Ag Paroi réfractaire ventilée par l'arrière, en particulier pour un four à combustion
EP2960579A1 (fr) * 2014-06-24 2015-12-30 Norbert Langen Refroidissement de paroi latérale dans des foyers pour éviter des colmatages de scories dans la zone périphérique et dans la zone de la chaudière
WO2016109904A1 (fr) * 2015-01-07 2016-07-14 Mokesys Ag Paroi réfractaire, en particulier pour four de combustion
WO2016119069A1 (fr) * 2015-01-30 2016-08-04 Mokesys Ag Dispositif d'amenée d'air pour un incinérateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009011076U1 (de) 2009-09-28 2011-02-17 Th. Buschhoff Gmbh & Co. Fahrzeug für die mobile Mischfutteraufbereitung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1297003A (fr) * 1961-08-07 1962-06-22 élément de construction, son procédé de montage et installations obtenues
DE2652507B1 (de) * 1976-11-18 1977-09-22 Steinmueller Gmbh L & C Gekuehlter plattenbehang fuer flossen- und feuerraumwaende
DE3022126A1 (de) * 1979-06-14 1981-01-08 Bertrams Ag Anlage zum verbrennen von pumpfaehigen industrieabfaellen
EP0071742A2 (fr) * 1981-08-07 1983-02-16 Deutsche Babcock-Bau GmbH Chambre de combustion pour un appareil à combustion
DE3230379A1 (de) * 1982-05-10 1983-11-10 Widmer & Ernst AG, 5430 Wettingen Verfahren und vorrichtung zum verbrennen von materialien in einer brennkammer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1297003A (fr) * 1961-08-07 1962-06-22 élément de construction, son procédé de montage et installations obtenues
DE2652507B1 (de) * 1976-11-18 1977-09-22 Steinmueller Gmbh L & C Gekuehlter plattenbehang fuer flossen- und feuerraumwaende
DE3022126A1 (de) * 1979-06-14 1981-01-08 Bertrams Ag Anlage zum verbrennen von pumpfaehigen industrieabfaellen
EP0071742A2 (fr) * 1981-08-07 1983-02-16 Deutsche Babcock-Bau GmbH Chambre de combustion pour un appareil à combustion
DE3230379A1 (de) * 1982-05-10 1983-11-10 Widmer & Ernst AG, 5430 Wettingen Verfahren und vorrichtung zum verbrennen von materialien in einer brennkammer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010022523A2 (fr) * 2008-08-26 2010-03-04 Mokesys Ag Paroi réfractaire ventilée par l'arrière, en particulier pour un four à combustion
WO2010022523A3 (fr) * 2008-08-26 2010-04-22 Mokesys Ag Paroi réfractaire ventilée par l'arrière, en particulier pour un four à combustion
US20110146596A1 (en) * 2008-08-26 2011-06-23 Mokesys Ag Back-ventilated refractory wall for an incinerator
JP2012500957A (ja) * 2008-08-26 2012-01-12 モケジュス・アクチェンゲゼルシャフト 特に焼却炉用の裏換気型耐火壁
EP2960579A1 (fr) * 2014-06-24 2015-12-30 Norbert Langen Refroidissement de paroi latérale dans des foyers pour éviter des colmatages de scories dans la zone périphérique et dans la zone de la chaudière
WO2016109904A1 (fr) * 2015-01-07 2016-07-14 Mokesys Ag Paroi réfractaire, en particulier pour four de combustion
CH710597A1 (de) * 2015-01-07 2016-07-15 Mokesys Ag Feuerfeste Wand, insbesondere für einen Verbrennungsofen.
WO2016119069A1 (fr) * 2015-01-30 2016-08-04 Mokesys Ag Dispositif d'amenée d'air pour un incinérateur
CH710683A1 (de) * 2015-01-30 2016-08-15 Mokesys Ag Vorrichtung zur Einspeisung von Luft in den Feuerraum eines Verbrennungsofens.

Also Published As

Publication number Publication date
EP0166133B1 (fr) 1989-04-26
DE3569816D1 (en) 1989-06-01
ATE42631T1 (de) 1989-05-15

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