EP0166133B1 - Paroi intérieure d'un foyer de chaudière - Google Patents

Paroi intérieure d'un foyer de chaudière Download PDF

Info

Publication number
EP0166133B1
EP0166133B1 EP85105633A EP85105633A EP0166133B1 EP 0166133 B1 EP0166133 B1 EP 0166133B1 EP 85105633 A EP85105633 A EP 85105633A EP 85105633 A EP85105633 A EP 85105633A EP 0166133 B1 EP0166133 B1 EP 0166133B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
air
nozzles
section
combustion chamber
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
Application number
EP85105633A
Other languages
German (de)
English (en)
Other versions
EP0166133A1 (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
Original Assignee
Individual
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 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

Links

Images

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 boiler furnace interior wall with plates, in which stepped side surfaces are designed as guide surfaces for blowing out with compressed air and are provided for forming air nozzles between two adjacent plates.
  • 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-slit-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, which results in a variation in the quantity of cooling air as a function of the temperature. This is undesirable because it can have dangerous consequences from overheating.
  • the present invention has set itself the goal of creating a plate which temperature-invariably doses the minimum volume of air required for cooling the plates and for the combustion process, also metered in direction, to the combustion chamber Was able.
  • Such a boiler furnace interior wall according to the invention is characterized in that the air nozzles are slit-shaped and kinked and that the nozzles have two opposing nozzle surfaces which are at least approximately parallel to one another and to the main plate surfaces and which define the narrowest nozzle cross section in every operating state that this nozzle cross section remains at least approximately temperature invariant.
  • FIG. 1 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 shown in FIG -Iron 5 with cross struts 6.
  • These U-bars 5 are in the masonry 7 embedded. You define air channels 9.
  • 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 into 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 shown 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 first runs horizontally, then vertically, in order then to pass into the oblique nozzle mouth 34 via a kink 33. Due to the fact that the slot width of the nozzle inlet 32 remains constant regardless of the temperature of the plates 10, 11, 28 and 40 and that the cross section of this nozzle inlet 32, regardless of the operating temperature, is at most as large as the cross section of the nozzle mouth 34, forms this nozzle with respect to Flow cross-section an invariant.
  • 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 variant of the temperature in terms of its narrowest cross section, so that in this regard too here the air volume flowing through remains constant.
  • nozzles By providing round grooves 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 an air curtain (inclined nozzles 26) in front of the front panels, while it penetrates more strongly 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 plates, sloping plates 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 available in the size, and partly under the combustion grate into the combustion chamber, this air being used as a downwind (primary air) can.
  • 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.
  • a hot, oxygen-rich edge zone is formed, which forms a good heat transfer for the steam boiler and avoids corrosion.
  • 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 in particular for burning garbage, coal and wood are provided, 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)

Claims (6)

1. Paroi intérieure (2) d'un foyer de chaudière, munie de plaques (10, 11 ; 28, 40) sur lesquelles des surfaces latérales (22, 29, 36) échelonnées sont réalisées sous forme de surfaces directrices pour l'insufflation d'air comprimé et sont conçues pour former des buses d'air (26, 42) entre deux plaques voisines (11, 10; 40, 28) caractérisée en ce que les buses d'air (26, 42) sont en forme de fentes et sont coudées (22, 29), et en ce que les buses présentent au moins deux surfaces de buses (22) qui sont en vis-à-vis et, au moins approximativement, parallèles entre elles et par rapport aux faces principales des plaques (12, 28), et qui déterminent pour chaque état de fonctionnement la section de buse la plus étroite, de telle manière que cette section de buse reste constante, au moins approximativement, indépendamment de la température.
2. Paroi intérieure selon la revendication 1, caractérisée en ce que les extrémités (37) des plaques sont, dans la zone de chevauchement, pourvues d'évidements pour l'aménagement d'un arrêt de buse (figure 5).
3. Paroi intérieure selon la revendication 1 ou 2, caractérisée en ce que deux des surfaces latérales (36) d'une plaque se dressent verticalement, au moins approximativement sur la partie de surface de plaque (12) voisine tournée vers l'intérieur (1) de la chaudière et une face latérale au moins (29) est fortement inclinée par rapport à cette partie de surface (12) dans la zone de l'arête de sortie d'air (34).
4. Paroi intérieure selon l'une des revendications 1 à 3, caractérisée en ce que la section de buse a une forme en
Figure imgb0001
ou en
Figure imgb0002
, la plus petite section étant éloignée de l'embouchure de la buse (34, 43) (Fig. 1, 4).
5. Paroi intérieure selon l'une des revendications 1 à 4, caractérisée en ce que les buses (26), dont la direction d'insufflation est de préférence inclinée d'environ 45° par rapport aux plaques verticales (28, 40), sont disposées horizontalement.
6. Paroi intérieure selon l'une des revendications 1 à 5, caractérisée en ce que la chambre (9) située en amont de l'entrée (32) de la buse est constituée sous forme de chambre de pression, afin de garantir une admission d'air régulière dans les buses d'air (26, 42).
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
CH2455/84 1984-05-18
CH245584 1984-05-18

Publications (2)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699406A2 (de) * 2008-08-26 2010-02-26 Mokesys Ag Hinterlüftete feuerfeste Wand, insbesondere für einen Verbrennungsofen.
DE102014009047A1 (de) * 2014-06-24 2015-12-24 Norbert Langen Seitenwandkülung für Verbrennungs - und Feuerungsanlagen
CH710597A1 (de) * 2015-01-07 2016-07-15 Mokesys Ag Feuerfeste Wand, insbesondere für einen Verbrennungsofen.
CH710683B1 (de) * 2015-01-30 2021-01-29 Mokesys Ag Vorrichtung zur Einspeisung von Luft in den Feuerraum eines Verbrennungsofens.

Family Cites Families (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
DE2652507C2 (de) * 1976-11-18 1978-05-24 L. & C. Steinmueller Gmbh, 5270 Gummersbach Gekühlter Plattenbehang für Flossen- und Feuerraumwände
CH639471A5 (en) * 1979-06-14 1983-11-15 Bertrams Ag Method and device for incinerating pasty, liquid or gaseous industrial waste
DE3131310A1 (de) * 1981-08-07 1983-02-24 Deutsche Babcock Bau GmbH, 4200 Oberhausen Feuerungsraum fuer eine verbrennungsanlage
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 (2)

* 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
WO2011036631A2 (fr) 2009-09-28 2011-03-31 Th. Buschhoff Gmbh & Co. Véhicule pour la préparation mobile de fourrage mêlé

Also Published As

Publication number Publication date
DE3569816D1 (en) 1989-06-01
ATE42631T1 (de) 1989-05-15
EP0166133A1 (fr) 1986-01-02

Similar Documents

Publication Publication Date Title
DE69723039T2 (de) Verfahren zur Verbesserung des thermisches Profil einer Glasschmelzofen und Glasschmelzofen benützt dafür
DE102008035394B3 (de) Schwadenapparat, insbesondere für Stikkenofen
DE3107270C2 (fr)
EP0166133B1 (fr) Paroi intérieure d'un foyer de chaudière
DE1483089B1 (de) Von oben beschickter Schachtofen zum Brennen von waermeempfindlichem Material,insbesondere Kalk,mit einer Vorwaermzone,einer Brennzone und einer Kuehlzone
WO2006008169A1 (fr) Ensemble de buses de bruleur a echangeurs de chaleur integres
DE2650998A1 (de) Verfahren und vorrichtung zum erhitzen eines werkstueckes
EP1321711A1 (fr) Barreau refroidi à air pour grille à gradins
CH636942A5 (de) Wirbelschichtfeuerung mit einem ebenen rost.
DE959212C (de) Aus luftgekuehlten Hohlroststaeben bestehender Rost
DE1803985A1 (de) Waermegenerator,insbesondere Winderhitzer fuer Hochoefen
EP2522636B1 (fr) Chambre de régénérateur pour une installation de vitrification
EP0391146B1 (fr) Installation de combustion pour brûler un matériau de combustion, en particulier des ordures
DE4223799C2 (de) Gasheizgerät
CH662405A5 (de) Wirbelbettfeuerung.
DE3813441A1 (de) Roststabelement fuer eine schubrostfeuerung zur muellverbrennung
DE1157133B (de) Verfahren zum Brennen und Kuehlen von koernigem Gut, z.B. von Kalkstein im Schachtofen, und Ofen zur Ausuebung des Verfahrens
EP0031571B1 (fr) Chaudière de chauffage
DE1796304C3 (fr)
EP0107244A1 (fr) Four chauffé au moyen d'un régénérateur
DE3931301A1 (de) Tunnelofen
DE19543743A1 (de) Verfahren und Vorrichtung zur Steuerung von Menge und Vorwärmung der Verbrennungsluft an seitenbeheizten Regenerativwannen
DE926874C (de) Schmelzkammerfeuerung mit unterteilter Kammer
DE1191199B (de) Oberflaechenbeheizter Verzinkungsofen mit keramischer Wanne und einem ueber dieser luftdicht angeordneten, als Feuerungsraum ausgebildeten Deckel
DE1258009B (de) Krematoriums-Ofen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19860624

17Q First examination report despatched

Effective date: 19870128

ITF It: translation for a ep patent filed

Owner name: STUDIO INGG. FISCHETTI & WEBER

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 42631

Country of ref document: AT

Date of ref document: 19890515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3569816

Country of ref document: DE

Date of ref document: 19890601

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85105633.3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19960417

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19960429

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19960510

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19960529

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19960531

Year of fee payment: 12

Ref country code: NL

Payment date: 19960531

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970508

Ref country code: AT

Effective date: 19970508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19970509

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19970531

BERE Be: lapsed

Owner name: KOCH THEODOR

Effective date: 19970531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19971201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19970508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980130

EUG Se: european patent has lapsed

Ref document number: 85105633.3

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19971201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010516

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010727

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021203

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL