DE1803984C

DE1803984C - Ceramic combustion device for tower-like wind heaters

Info

Publication number: DE1803984C
Authority: DE
Inventors: Jacobus van Santpoort; Ouwerkerk Johannes Hendrik Willen] Ijmuiden; Laar (Niederlande). F23j 3-00
Original assignee: Didier Werke AG
Current assignee: Didier Werke AG
Publication date: 1972-09-21

Description

Außeidem können sich die Zuführungen für Brenngas ynd Verbrennungsluft nahe dem Bodenteil verengen. Dies bewirkt eine gleichmäßige Verteilung der zufließenden Brennmittel auf den zentralen Austrittskanal und die weiteren Austrittskanäle.In addition, the feeders for Narrow combustion gas and combustion air near the bottom part. This causes an even distribution the inflowing fuel to the central outlet channel and the other outlet channels.

Die Zeichnung stellt ein Ausführungsbeispiel des Erfindungsgegenstandes dar, und zwar zeigtThe drawing represents an embodiment of the subject matter of the invention, namely shows

Fig. 1 einen Winderhitzer mit in den Brennschacht eingebauter Verbrennungseinrichtung im Längsschnitt,Fig. 1 shows a boiler with in the combustion shaft built-in incinerator in longitudinal section,

Fig.2 die Verbrennungseinrichtung aus Fig. I in vergrößertem Maßstab,2 shows the combustion device from FIG enlarged scale,

Fig. 3 einen Schnitt nach der Linie ΙΠ-ΙΠ in Fig. 2.Fig. 3 is a section along the line ΙΠ-ΙΠ in Fig. 2.

Der Winderhitzer nach Fig. 1 weist eine Umfangswand 1 sowie einen Boden 2 auf, die eine gemauerte Einheit bilden. Die Umfangswand 1 ht von einem Stahlmantel umgeben (nicht gezeigt). Eine Anzahl aus dem Boden 2 ragender Pfeilei 3 stützt einen Rost 4, auf dem die im Gitterwerksschacht 5 untergebrachten, mit Durchgängen versehenen Gitterwerkssteine gestapelt sind (nicht gezeigt), durch weiche abwechselnd heißes Gas von oben nach unten und zu erhitzende Luft von unten nach oben geführt werden. Der Gitterwerksschacht 5 ist durch eine Wand 6 vom Brennschacht 7 getrennt, der nach außen durch einen Abschnitt der Umfangswand 1 begrenzt wird. Oben ist der Winderhitzer durch eine gemauerte Kuppel 8 und durch eine Stahlkuppel 9 abgeschlossen.The heater according to Fig. 1 has a peripheral wall 1 and a floor 2, which is a brick Form unity. The peripheral wall 1 ht is surrounded by a steel jacket (not shown). A number Arrow 3 protruding from the bottom 2 supports a grate 4 on which the truss shaft 5 housed, latticework stones provided with passageways are stacked (not shown), by means of which alternately hot gas from top to bottom and air to be heated from bottom to top. The latticework shaft 5 is separated by a wall 6 from the combustion shaft 7, which is connected to the outside by a Section of the peripheral wall 1 is limited. Above is the wind heater through a brick dome 8 and closed by a steel dome 9.

Im Boden des Brennschachtes ist eine Verbiennungseinrichtung 10 angeordnet, die eine zentrale Zuführung 11 für Brenngas und eine weitere Zuführung 12 für Verbrennungsluft aufweist. Oberhalb der Verbrennungsein^ichtung 10 werden Brennstoff und Luft innig gemischt und im Brennschacht 7 verbrannt. Die heißen Verbrennungsgase ziehen über die Trennwand 6 in das Gitterwerk und geben Wärme an die im Gitterwerksschacht 5 gestapelten Sterne ab, um dann den Winderhitzer zu verlassen. Nach Aufheizung der Gitterwerksteine werden die Zufuhröffnungen 13 und 14 der Zuführungen 11 und 12 für Brenngas und Verbrennungsluft geschlossen; durch eine öffnung 15 wird Kaltwind eingeführt, der ίο die Gitterwerkssteine in umgekehrter Richtung durchströmt und den Winderhitzer als Heißwind durch die Öffnung 16 veriäßt.There is a connecting device in the bottom of the furnace 10 arranged, the one central feed 11 for fuel gas and another feed 12 for combustion air. Above the combustion device 10 are fuel and Air mixed intimately and burned in the combustion shaft 7. The hot combustion gases pull over the partition 6 into the latticework and give heat to the stars stacked in the latticework shaft 5 and then exit the heater. After the latticework stones have been heated, the feed openings 13 and 14 of the feeders 11 and 12 closed for fuel gas and combustion air; Cold wind is introduced through an opening 15, the ίο the latticework stones in the opposite direction flows through and leaves the heater as a hot wind through the opening 16.

Das Bodenteil 17 ist aus keramischem Material hergestellt, ebenso wie die Wände der Zuführungen Il und 12 und die Wände 1 und 6 des Brennschachtes?. Der zentrale Austrittskaral i£ des Bodenteils 17 hat rechteckige Form mit einem Verhältnis von Länge zu Breite von etwa 5:1. Ferner ist der zentrale Austrittskanal 18 an den Längsseiten von Wanao düngen 19 eingesäumt, in denen in gleicher Höhe gegeneinander versetzt mit der Zuführung 12 in Verbindung stehende Austrittskanäle 2t in jeweils einer Reihe münden. Die Austrittskanäle 20 haben rechteckige Form, und die aus ihnen auftretenden Veras brennungsluftstrahlen blasen abwechselnd aneinander vorbei. Die Wandungen 19 des Bodenteiles 17 schließen im wesentlichen einen Winkel von 90° ein, der aber ]s nach Länge und Durchmesser des Brennschachtes? zwischen 40 bis 120° liegen kann. Die Mittelachsen der AustritCskaräle 2· bilden mit der Achse des zentralen Austrittsk *nals 18 einen Winkel von etwa 20°.The bottom part 17 is made of ceramic material, as are the walls of the inlets II and 12 and the walls 1 and 6 of the firing shaft ?. The central exit caral i £ of the bottom part 17 has a rectangular shape with a length to width ratio of about 5: 1. Furthermore, the central outlet channel 18 is lined on the longitudinal sides of Wanao fertilizer 19, in which outlet channels 2t connected to the feed 12 and connected to the feed 12 open in a row at the same height. The outlet channels 20 have a rectangular shape, and the Veras combustion air jets emerging from them blow alternately past one another. The walls 19 of the bottom part 17 essentially enclose an angle of 90 °, which, however, depends on the length and diameter of the firing shaft? can be between 40 to 120 °. The central axes of the outlet channels 2 form an angle of approximately 20 ° with the axis of the central outlet channel 18.

Die Zuführungen 11 und 12 sind mit Verengungen 21 und 22 versehen.The inlets 11 and 12 are provided with constrictions 21 and 22.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

where the flame hits the wall of the Drennschacht Patent claims: is overheated locally, which can lead to early damage to the masonry.

1. Ceramic incinerator for From U.S. Patent 2,175,611 is also tower-like heater with combustion shaft, the 5 a combustion device for a tower-like parallel, vertical feeds rectangular blast furnace known with the combustion shaft, in which the Cross section for fuel gas and combustion feed for fuel gas a central outlet channel

. has air, which is assigned to the circular cross-section in the bottom of the combustion shaft arranged outlet channels rectangular wall at the mouth into a conical after End cross-section, of which the wall, inclined on the outside, passes over, in the same Niüg for the outlet channels assigned to a fuel level evenly distributed rectangular tread channels formed horizontally in a row and open towards cross-section for combustion air. at in the direction of flow to the longitudinal center plane of this combustion device is because of the com-feeds are inclined, that a d u r c h g e k e η η - pacts central focal medium jet a focal point that the feed for the other 15 does not guarantee telexchanging in a narrow space. A central vertical outlet duct is also known to have a parallel flow burner

nal (18) is assigned, whose longitudinal walls, ner with one in the direction of flow to the burner mitan the mouth in an outwardly inclined plane, inclined plane, exit slot for combustion walls (19) pass over, in which in the same air as well as arranged parallel to it, also to the The outlet channels are offset in height from one another in the middle plane inclined outlet bores for combustion (20) to be provided for the first-mentioned fuel in each case in gas and in a base part of the burner Row. Shaft of a tower-like heater outlet

2. Combustion device according to claim 1, channels for fuel gas and combustion air vorzusedäge characterized in that the ratio of hen.

Length to width of the outlet channel (18) in the 35 The object of the invention is to provide a rich between 4: 1 and 6: I cherish. Combustion device of the initially specified

3. Combustion device according to claim 1, to create a way that, with intimate fuel, reduces characterized in that in each wall a schung the combustion shaft wall by local

(19) at least four outlet ducts (20) bundled flames that do not endanger overheating. 30 me guaranteed.

4. Combustion device according to one of the claims. According to the invention, this object is thereby achieved 1 to 3, characterized in that solves that the feed for the other fuel the outlet channel (18) and the outlet channels are assigned a central vertical outlet pipe,

(20) are arranged in a bottom part (17) and its longitudinal walls at the mouth in nath that the walls (19) pass an angle of 40 ° 35 outwardly inclined flat walls, in debis Include 120 °. offset against each other by the same amount

5. Combustion device according to claim 4, passage channels for the first-mentioned fuel in each thereby characterized in that the feed because one row open.

gen (11, 12) for fuel gas and combustion air The achievable by such a design

narrow near the bottom part (17). 40 technical progress consists in the fact that as a result

the arrangement of the outlet channels for the one fuel parallel to the long sides of the central one

Outlet channel for the other fuel in the case of intensive mixing of the fuel in a narrow space 45 regardless of any fluctuations in the exit velocity of the two fuel flows

The invention relates to a ceramic flame that extends symmetrically to the longitudinal axis of the combustion incinerator for tower-like Winderhit- installation, wnzer with a combustion shaft, the parallel, vertical supply with a complete burnout of the Brennmittelgemeungen rectangular cross-section for fuel gas and 50 sches within the Combustion shaft below avoids combustion air, which end in the bottom of the manure of destructive afterburning in the combustion shaft arranged outlet channels right of the heater dome and in the latticework shaft tckal cross-section, from which the inlet is reached. The combustion device can also be designed horizontally in a row and used in 35 sections as a guide for the outlet assigned to a combustion means.
Direction of flow to the longitudinal median plane of the supply The ratio of length to width of the central

are inclined. The outlet channel can range between 4: 1 and

Such a combustion device is from the 6: 1 ratio.

German Auslegeschrift O 2415 VI / 18 a known. Furthermore, in each of the

The well-known combustion device has par- 60 fertilize the central outlet duct adjoining, allelic, vertical fuel supply lines have narrow, outwardly inclined walls at least four rectangular cross-section, each opening into herringbone outlet channels.

direction inclined to its longitudinal center plane.

canals. Similar formation of the building of the central combustion device Outlet channels for gas and air have the effect that at Sj the outlet channel and the other outlet channels in unequal exit velocities of the two be arranged a bottom part and the inclined Fuel flows einder a deflection of the flame from walls at an angle of 40 ° to 120 ° The axis of the firing shaft takes place, which leads to the opening.