DE876098C - Protective device for boiler pipes lying in front of burner mouths - Google Patents

Protective device for boiler pipes lying in front of burner mouths

Info

Publication number
DE876098C
DE876098C DEST938D DEST000938D DE876098C DE 876098 C DE876098 C DE 876098C DE ST938 D DEST938 D DE ST938D DE ST000938 D DEST000938 D DE ST000938D DE 876098 C DE876098 C DE 876098C
Authority
DE
Germany
Prior art keywords
protective device
burner
pipes
boiler pipes
pipe
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
DEST938D
Other languages
German (de)
Inventor
Eduard Dipl-Ing Weissgerber
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
L&C Steinmueller GmbH
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 L&C Steinmueller GmbH filed Critical L&C Steinmueller GmbH
Priority to DEST938D priority Critical patent/DE876098C/en
Application granted granted Critical
Publication of DE876098C publication Critical patent/DE876098C/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
    • F22B37/107Protection of water tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)

Description

DieErAirid.üngbetrifft-einer Schutzvorrichtung füm vor Brennermündungen liegende: Kesselrohre,. Man hat bisher, insbesondere bei Schmelzkammerfeue- rungen, die den Kohlens:baub in den Feuerraum ein- blasenden. Flachbrenner so angeordnet, daß der Kohlenisitaubstrom eines jeden Brenners direkt auf ein wasserdurchflossenes Rohr auftrifft. Dies hat den. Nächtei.l; daß das Rohr sehr schnell abgenützt wird und man hat zur Verstärkung des Rohres auf die angeblasene Oberfläche desiseiben. Schutzstreif en aufgeschweißt. Eine solche Anschweißwug der halb,- kreisförmigen Schutzstreifen auf die Kesselrohere hat aber den erhebliche, Nachteil, da,ß Schweiß- beanspruchungen der Rohre eintreten, die inslyeison- dere bei Höchstdruckkesseln sehr unangenehm sind. Auch muß bei Ersatz solcher Schutzistü:cke das Rohr ausgeschnitten und ein neues Stück eingeschweißt werden, was erhebliche Zeit und Arbeit bedingt. Nach der Erfindung werden ä@les,e@ Nachteile da- durch vermieden, daß die Schutzstreifen. nichtauf- geschweißt, sondern nach Art einer Rohrsch@lle.al;s geschlossenes Schutzstrick so um das Rohr herum befestigt werden, daß das Rohr volls,tähdig umhüllt isst, die Befestigung der Umhüllung unten, d. h. im Strom des! Kohlenstaubes hinter dem Rohr liegt und rede an- dem Rohr in Fortfall kommt. Dabei kann, dass- Schutzstück salbst an der- jenigen Stelle, an welcher - es hauptbsiächlich -vom Koihlenstaubstrom gertiroffen wird, in beliebiger Weise durch aufgeschweißte Schutzstreilen ver- stIrkt werden:, da diese Sireifen nur auf der Schelle, aber nicht auf dem Rohr selbstnbefeistigt werden und mit der Schelle zusammen ohne weiteres. ent- fernt und ausgewechselt -werden können. - In, der Zeichnung ist die `Vorrichtung bei einem Schmelzkammerkesisel dargestellt. Abt. i zeigtdeinen senkrechten Querschnitt durch einen @chriiedz@2cäirirrierkels;sel; " Abt. 2 zeigt eine'. senkrechten Längsschnitt durch den Brenner rriit rlen -Flächbrennern- und den Kühlrohren; -Abt. 3 zeigt in. vargräßertem Maßstab die Anordnung eines -Flachbrenners und der diarunberliegenden gesichiitzten Rohre. The ErAirid lying in front of burner mouths: boiler tubes ,. Man has so far, especially in the case of melting chamber that the coal: built into the furnace blowing. Flat burner arranged so that the Carbon output from each burner directly hits a pipe through which water flows. this has the. Nightsi.l; that the pipe wears out very quickly and you have to reinforce the pipe Desisiben the blown surface. Protective strips welded on. Such a weld-on swell of the half, circular protective strips on the boiler shell but has the considerable disadvantage that ß sweat stresses on the pipes occur, the inslyeison- which are very uncomfortable with high pressure boilers. The pipe must also be replaced when such protective pieces are replaced cut out and welded a new piece which requires considerable time and effort. According to the invention, all the disadvantages by avoiding the protective strips. not open welded, but in the manner of a Rohrsch@lle.al; s closed protective rope around the pipe fastened so that the pipe is fully covered eats, fastening the wrapping below, ie in Stream of! Coal dust is behind the pipe and speech on the pipe no longer applicable comes. It can be that- protective piece anoints on the- that place at which - it mainly - from Koihlenstaubstrom is gertiroff, in any Way through welded-on protective strips be strengthened: since these tires are only but not self-attached to the pipe and with the clamp together without further ado. un- removed and exchanged. - In, the drawing is the `device at a Melting chamber kesisel shown. Section i shows your vertical cross-section through a @ chriiedz @ 2cäirirrierkels; sel; " Dept. 2 shows a '. vertical longitudinal section through the burner rriit rlen -flat burners- and the cooling tubes; -Dept. 3 shows, on a larger scale, the arrangement of a flat burner and the sealed tubes overlying the diaphragm.

Durch die Leitung i wird den Flachbrennern 2 der Kohlenstaub zugeführt, welcher unterhalb der Austrittsöffnung auf die Rohre 3 trifft. Die dazwischenIieg.enden, Rohre ¢ werden nicht direkt von dem Kohlens.taubsttrom getroffen, werden aber obenfalls auf ihrer abgedeckt. Gemäß der Erfindung besteht diese Abdeckung aus, rohrsch.ellenartigen, unten z. B.. durch 5 zusammengehaltenen Blechstreifen 6, welche bei den unmittelbar unterhalb der Flachbrenner 2 liegenden Rohren noch eine besondere Kappe 7 tragen.The coal dust is fed to the flat burners 2 through line i, which meets the tubes 3 below the outlet opening. Those in between ends Pipes ¢ are not hit directly by the carbon dioxide stream, but are on top on your covered. According to the invention, this cover consists of tubular clamp-like, below z. B. by 5 held together sheet metal strips 6, which in the immediate Wear a special cap 7 below the flat burner 2 pipes.

Diese Ausf"uhrungsfoarm erlaubt ein, sehr ein: faches. und schnelles Anbringen und Auswechseln der Schutzstreifen und ferner die Aübringung beliebiger Verstärkungsstreifen, ohne die wasserführenden Rohre irgendwie anzugreifen.This form of execution allows a very simple and fast Attachment and replacement of the protective strips and also the application of any Reinforcement strips without attacking the water-carrying pipes in any way.

Claims (2)

"-PATENTANSPRÜCHE: i. Schutzvorrichtung für vor Brennermündungen liegende Kesiselrohre, dadurch gekennzeichnet, -daß die Kesselrohre an der gef ährdeten Stelle durch rohrschellenarillge, das Rohr umfassende Blechstreifen (6). geschützt sind, deren Befestigungsmittel, (5) auf' der dem Koh:lenstaubstrom abgewandten Seite liegen. " "-PATENT CLAIMS: i. Protective device for those located in front of the burner mouths Kesisel pipes, characterized in that the boiler pipes are at the endangered point by Rohrschellenarillge, the pipe encompassing sheet metal strips (6). are protected whose fastening means (5) lie on the side facing away from the coal dust flow. " 2. Schutzvorrichtung nach Artspruch i, dadurch gekennzeichnet, -daß die Blechstreifen (6) an besonders gefährdeten Stellen im, an sich bekannter. Weise durch aufgeschweißte Kappen (7) verstärkt sind. " " _ - Angezogene Druckschriften_ Deutsche Patentschrift Nr. 542 637; " französische Patentschrift Nr. 636 392.
2. Protection device according to Artspruch i, characterized in -that the sheet metal strips (6) at particularly vulnerable points in the, per se known. Way are reinforced by welded-on caps (7). " "_ - Referred publications_ German Patent No. 542 637; " French patent specification No. 636 392.
DEST938D 1943-08-14 1943-08-14 Protective device for boiler pipes lying in front of burner mouths Expired DE876098C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST938D DE876098C (en) 1943-08-14 1943-08-14 Protective device for boiler pipes lying in front of burner mouths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST938D DE876098C (en) 1943-08-14 1943-08-14 Protective device for boiler pipes lying in front of burner mouths

Publications (1)

Publication Number Publication Date
DE876098C true DE876098C (en) 1953-05-07

Family

ID=7452289

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST938D Expired DE876098C (en) 1943-08-14 1943-08-14 Protective device for boiler pipes lying in front of burner mouths

Country Status (1)

Country Link
DE (1) DE876098C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338804A1 (en) * 1983-10-26 1985-05-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Heat-exchange tubes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR636392A (en) * 1928-04-07
DE542637C (en) * 1930-07-25 1932-01-27 Kohlenscheidungs Ges M B H Combustion chamber tube wall

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR636392A (en) * 1928-04-07
DE542637C (en) * 1930-07-25 1932-01-27 Kohlenscheidungs Ges M B H Combustion chamber tube wall

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338804A1 (en) * 1983-10-26 1985-05-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Heat-exchange tubes

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