DE577361C - Pipe for blowing off combustion residues - Google Patents

Pipe for blowing off combustion residues

Info

Publication number
DE577361C
DE577361C DEP62319D DEP0062319D DE577361C DE 577361 C DE577361 C DE 577361C DE P62319 D DEP62319 D DE P62319D DE P0062319 D DEP0062319 D DE P0062319D DE 577361 C DE577361 C DE 577361C
Authority
DE
Germany
Prior art keywords
pipe
blowing
nozzle
combustion residues
bar
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
DEP62319D
Other languages
German (de)
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.)
VITALIS PANTENBURG DIPL ING
Original Assignee
VITALIS PANTENBURG DIPL ING
Publication date
Priority to DEP62319D priority Critical patent/DE577361C/en
Application granted granted Critical
Publication of DE577361C publication Critical patent/DE577361C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supports For Pipes And Cables (AREA)

Description

Rohr zum Abblasen von Verbrennungsrückständen Die der einfachsten Form von Düsenrohren mit eingebohrten Löchern anhaftenden Mängel zu schnellen Verschleißes und ungünstiger Düsenform sind durch die verschiedenartigsten Maßnahmen, z. B. eingesetzte, teilweise auswechselbare Düsen u. dgl., als behoben anzusehen. Solche Ausführungen haben jedoch den Mangel, daß die Festigkeit. durch die Bohrungen unzulässig verringert ist, d. h. sie neigen zur Riß- und Bruchbildung, ausgehend von den Düsenlöchern selbst oder deren Schweißnähten. Außerdem ist es werkstattechnisch schwierig, die Düse genau in die achsenrechte Lage zu bekommen.Pipe for blowing off combustion residues The simplest Form of nozzle pipes with drilled holes adhering defects to rapid wear and unfavorable nozzle shape are by the most diverse measures, such. B. used, partially exchangeable nozzles and the like, to be regarded as fixed. Such designs however, have the defect that strength. impermissibly reduced by the holes is, d. H. they tend to crack and break starting from the nozzle holes themselves or their welds. In addition, it is technically difficult to do the To get the nozzle exactly in the right-axis position.

Ferner werden derartige Rohre im Gebrauch meist an den Düsen sehr früh schadhaft und müssen ersetzt werden, ehe die Lebensdauer des eigentlichen Rohres auch nur annähernd erschöpft ist. Zur Vermeidung dieser Mängel wurden bereits Düsenrohre hergestellt aus einem Schlitzrohr und einem über die ganze Rohrlänge durchlaufenden Balken zur Aufnahme der Düsen. Beide Teile werden beispielsweise durch autogene oder elektrische Schweißung homogen verbunden und erst dann die Düsen in der vorgeschriebenen Weise eingebohrt. Wird nun aber ein solches Düsenrohr starken Temperaturänderungen unterworfen, wie dies insbesondere bei den Düsenrohren der Bußbläser in Dampfkesseln der Fall ist, so' vermag zwar das dünnwandige Schlitzrohr denselben schnell zu folgen, aber nicht der dickwandige Düsenbalken. Hierdurch treten Spannungen auf, welche ein Verziehen des Rohres oder der Düsen -bewirken, die meist über die zulässige Grenze hinausgehen. Erfindungsgemäß werden diese Spannungen von dem kräftigen Düsenbalken aufgenommen, indem dieser in das Rohrmittel gelegt wird. Zu diesem Zwecke sind die Ränder der Rohrwandung an der schlitzförmigen Unterbrechungsstelle nach der Rohrachse zu derart eingebogen, daß die Achsen von Rohr-und Balkenkörper annähernd zusammenfallen.Furthermore, such tubes tend to become very close to the nozzles in use Damaged early and must be replaced before the life of the actual pipe is even remotely exhausted. To avoid these shortcomings, nozzle pipes have already been installed made of a slotted tube and one that runs the entire length of the tube Bar to accommodate the nozzles. Both parts are, for example, by autogenic or electrical welding homogeneously connected and only then the nozzles in the prescribed Way drilled. But if such a nozzle pipe now has strong temperature changes subject, as is the case in particular with the nozzle pipes of the buss blowers in steam boilers is the case, the thin-walled slotted tube is able to follow it quickly, but not the thick-walled nozzle bar. This creates tensions, which warping of the pipe or the nozzles - usually over the permissible Go beyond the limit. According to the invention, these stresses are exerted by the strong nozzle bar recorded by placing it in the pipe means. For this purpose, the Edges of the pipe wall at the slot-shaped interruption point after the pipe axis bent in such a way that the axes of the pipe and beam body coincide approximately.

In der Abbildung, welche ein solches Düsenrohr im Schnitt zeigt, bedeutet a den achteckig geformten Düsenbalken, b das Schlitzrohr, dessen Kanten cl und c2 mit dem Düsenbalken a homogen verbunden sind. Diese Ränder cl und c2 werden vor oder nach der Verbindung mit dem Balken a so nach innen gebogen, daß der Düsenbalken in die Mitte des Rohres zu liegen kommt.In the figure, which shows such a nozzle pipe in section, means a the octagonal shaped nozzle bar, b the slotted tube, its edges cl and c2 are connected homogeneously to the nozzle bar a. These edges cl and c2 are in front or after the connection with the bar a so bent inwards that the nozzle bar comes to rest in the middle of the tube.

Claims (1)

PATENTANSPRUCH: Rohr, insbesondere zum Abblasen von Verbrennungsrückständen, dessen Wandung an einer schlitzförmig in Richtung der Rohrachse verlaufenden Unterbrechungsstelle von einem Durchtrittsöffnungen enthaltenden starkwandigen Balkenkörper abgeschlossen ist, dadurch gekennzeichnet, daß die Ränder der Rohrwandung an der schlitzförmigen Unterbrechungsstelle nach der Rohrachse zu derart eingebogen sind, daß die Achsen von Rohr- und Balkenkörper annähernd zusammenfallen. PATENT CLAIM: Pipe, in particular for blowing off combustion residues, the wall of which is closed off at an interruption point running in the direction of the pipe axis in the form of a slot by a thick-walled beam body containing through openings, characterized in that the edges of the pipe wall at the slot-shaped interruption point are bent in after the pipe axis in such a way that that the axes of the pipe and beam body approximately coincide.
DEP62319D Pipe for blowing off combustion residues Expired DE577361C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP62319D DE577361C (en) Pipe for blowing off combustion residues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP62319D DE577361C (en) Pipe for blowing off combustion residues

Publications (1)

Publication Number Publication Date
DE577361C true DE577361C (en) 1933-05-29

Family

ID=7389922

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP62319D Expired DE577361C (en) Pipe for blowing off combustion residues

Country Status (1)

Country Link
DE (1) DE577361C (en)

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