DE479297C - Firebox wall with lining of the inner wall surface with pipes provided with longitudinal ribs - Google Patents

Firebox wall with lining of the inner wall surface with pipes provided with longitudinal ribs

Info

Publication number
DE479297C
DE479297C DEK100036D DEK0100036D DE479297C DE 479297 C DE479297 C DE 479297C DE K100036 D DEK100036 D DE K100036D DE K0100036 D DEK0100036 D DE K0100036D DE 479297 C DE479297 C DE 479297C
Authority
DE
Germany
Prior art keywords
wall
lining
longitudinal ribs
wall surface
firebox
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
DEK100036D
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.)
Kohlenscheidungs GmbH
Original Assignee
Kohlenscheidungs GmbH
Publication date
Priority to DEK100036D priority Critical patent/DE479297C/en
Application granted granted Critical
Publication of DE479297C publication Critical patent/DE479297C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10Water tubes; Accessories therefor
    • F22B37/101Tubes having fins or ribs
    • F22B37/102Walls built-up from finned tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Description

Feuerraumwand mit Auskleidung der inneren Wandfläche durch mit Längsrippen versehene Rohre Beim Betrieb von Kohlenstaubfeuerungen wie überhaupt von Feuerungen mit hohen Temperaturen hat es sich als zweckmäßig herausgestellt, die Feuerraumwände mit wasserdurchflossenen Rohren auszukleiden, um einerseits das Mauerwerk der Feuerkammer vor dem Einfluß der hohen Temperatur der Flamme zu schützen und die gemauerte Wand aus billigem, weniger hochwertigem Baustoff herstellen zu können, anderseits um die Strahlwärme der Flamme für die Dampferzeugung nutzbar zu machen.Firebox wall with lining of the inner wall surface with longitudinal ribs equipped pipes When operating pulverized coal furnaces as well as furnaces in general With high temperatures it has been found to be useful, the combustion chamber walls Line with pipes through which water flows around the brickwork of the fire chamber on the one hand and protect the brick wall from the influence of the high temperature of the flame to be able to produce from cheap, less high-quality building material, on the other hand to to make the radiant heat of the flame usable for steam generation.

Es wurde zu diesem Zweck in der verschiedensten Weise vorgeschlagen, längs den besonders gefährdeten und gegebenenfalls längs sämtlicher Feuerraumwände Rohre anzuordnen, welche die Feuerraumwand mehr oder weniger abdecken. Es wurde im besonderen vorgeschlagen, zu diesem Zweck mit seitlichen Flügeln versehene Rohre zu verwenden, wobei die Flügel benachbarter Rohre stumpf aneinanderstoßen oder sich überdecken, um auf diese Weise eine vollständig geschlossene Metallwand zu schaffen.For this purpose it has been proposed in the most varied of ways, along the particularly endangered and possibly along all combustion chamber walls Arrange pipes that more or less cover the furnace wall. It was in particular, it has been proposed to use side-winged tubes for this purpose to use, with the wings of adjacent tubes butt against each other or each other cover to create a completely enclosed metal wall.

Im Betrieb hat sich nun gezeigt, daß die an den Rohren befestigten Flügel, die durch das durch - die Rohre geleitete Wasser weniger stark gekühlt werden als die Rohre selbst, stärkeren Wärmedehnungen unterworfen sind als die Rohre, so daß Verwerfungen der Flügel und mehr oder weniger starke Ausbeulungen der gesamten Feuerraumwand auftreten, wodurch die Einheitlichkeit der Wand gestört wird.In operation it has now been shown that the fastened to the pipes Wings that are less cooled by the water conducted through the pipes than the tubes themselves, are subject to greater thermal expansion than the tubes, so that distortions of the wings and more or less pronounced bulges throughout Combustion chamber wall occur, whereby the uniformity of the wall is disturbed.

Um dies zu verhindern, wurde bereits vorgeschlagen, entweder die Rohre an besonderen, in dem Mauerwerk der Feuerkammer liegenden Trägern zu befestigen oder die benachbarten Flügel mit Metallappen zu versehen, welche die Flügel wechselweise übergreifen und dadurch in ihrer Lage festhalten sollen.To prevent this from happening, it has already been proposed to either use the pipes to be attached to special girders lying in the masonry of the fire chamber or to provide the neighboring wings with metal tabs, which the wings alternately should overlap and thereby hold on to their position.

Die Erfindung benutzt demgegenüber den bei Wärmeaustauschern bekannten Gedanken, die weniger gut gekühlten Rippen mit Einschnitten zu versehen. Nach der Erfindung sind diese Einschnitte an den Längsrippen der Auskleiderohre schiefwinklig zur Ebene der Rippen angeordnet, so daß Verwerfungen der Wand mit Sicherheit vermieden werden und sich in den Spalten zwischen den durch die Einschnitte gebildeten Flügelstücken keine Schlacke ablagern und festsetzen kann.In contrast, the invention uses those known in heat exchangers Thoughts of making incisions in the less well cooled ribs. After Invention, these incisions on the longitudinal ribs of the lining pipes are at an oblique angle arranged to the level of the ribs, so that warping of the wall is avoided with certainty and are located in the gaps between the wing pieces formed by the incisions no slag can deposit and settle.

Die Erfindung ist in beispielsweiser Ausführung in der beiliegenden Zeichnung dargestellt. Es zeigt Abb. z eine Ansicht eines Flügelrohres, Abb. 2 einen Schnitt nach Linie 2-2 der Abb. x. = bezeichnet das eigentliche Rohr, welches mit einander gegenüber angeordneten Längsrippen 2 versehen ist. Durch die Einschnitte sind die Flügel in mehrere senkrechte Flügelstücke 3 unterteilt.The invention is exemplified in the enclosed Drawing shown. It shows Fig. Z a view of a wing tube, Fig. 2 a Section along line 2-2 of Fig. X. = denotes the actual pipe, which is marked with longitudinal ribs 2 arranged opposite one another are provided. Through the incisions the wings are divided into several vertical wing pieces 3.

Claims (1)

PATENTANSPRUCH: Feuerraumwand mit Auskleidung der inneren Wandfläche durch mit seitlichen Längsrippen versehene Rohre, insbesondere für Kohlenstaubfeuerungen, dadurch gekennzeichnet, daß die Längsrippen der Auskleiderohre schiefwinklig zur Ebene der Rippen eingeschnitten sind. Claim: furnace wall with lining of the inner wall surface by tubes provided with lateral longitudinal ribs, in particular for pulverized coal firing, characterized in that the longitudinal ribs of the lining tubes are incised at an oblique angle to the plane of the ribs.
DEK100036D Firebox wall with lining of the inner wall surface with pipes provided with longitudinal ribs Expired DE479297C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK100036D DE479297C (en) Firebox wall with lining of the inner wall surface with pipes provided with longitudinal ribs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK100036D DE479297C (en) Firebox wall with lining of the inner wall surface with pipes provided with longitudinal ribs

Publications (1)

Publication Number Publication Date
DE479297C true DE479297C (en) 1929-07-11

Family

ID=7239315

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK100036D Expired DE479297C (en) Firebox wall with lining of the inner wall surface with pipes provided with longitudinal ribs

Country Status (1)

Country Link
DE (1) DE479297C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122971B (en) * 1956-05-21 1962-02-01 Bundy Tubing Co Heat exchange tube made of a tubular metal strip and a metal rib inserted into the longitudinal seam
DE1199071B (en) * 1962-12-17 1965-08-19 Goerlitzer Maschb Veb Welded pipe branch, especially for gas turbine systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122971B (en) * 1956-05-21 1962-02-01 Bundy Tubing Co Heat exchange tube made of a tubular metal strip and a metal rib inserted into the longitudinal seam
DE1199071B (en) * 1962-12-17 1965-08-19 Goerlitzer Maschb Veb Welded pipe branch, especially for gas turbine systems

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