DE881199C - Manufacturing process for internally leaded liquid preheaters - Google Patents

Manufacturing process for internally leaded liquid preheaters

Info

Publication number
DE881199C
DE881199C DEO594D DEO0000594D DE881199C DE 881199 C DE881199 C DE 881199C DE O594 D DEO594 D DE O594D DE O0000594 D DEO0000594 D DE O0000594D DE 881199 C DE881199 C DE 881199C
Authority
DE
Germany
Prior art keywords
pipes
leaded
lead
manufacturing process
internally
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
DEO594D
Other languages
German (de)
Inventor
Fritz Dr-Ing Leithe
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.)
Dr C Otto and Co GmbH
Original Assignee
Dr C Otto and Co 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 Dr C Otto and Co GmbH filed Critical Dr C Otto and Co GmbH
Priority to DEO594D priority Critical patent/DE881199C/en
Application granted granted Critical
Publication of DE881199C publication Critical patent/DE881199C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/08—Coatings characterised by the materials used by metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/165—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets
    • F28F9/167—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by using additional preformed parts, e.g. sleeves, gaskets the parts being inserted in the heat-exchange conduits

Description

Flüssigkeitsvorwäriner, Röhrenkühler und sonstige Wärmeaustauscher, wie sie in den Nebengewinnungsanlagen der modernen Kokereien und Syntheseanlagen üblich sind, müssen zum Schutz gegen Anfressungen durch Laugen oder schwache Säuren häufig verbleit werden. Da die Herstellungsweise dieser Vorwärmer eine Verbleiung in einem Zuge nicht zuläß,t, wird oft eine gleichmäßig-. Auskleidung aller Wände und Übergänge nicht erreicht, wodurch die Korrosionsfestigkeit leidet.Liquid preheaters, tube coolers and other heat exchangers, as they are in the by-products of modern coking plants and synthesis plants are common, must protect against corrosion by alkalis or weak acids are often leaded. Because the production method of this preheater is leaded in one move not admitted, t, will often be an evenly-. Lining all walls and transitions are not reached, as a result of which the corrosion resistance suffers.

Gegenstand der Erfindung ist bei solchen Vorwärmern ein Fertigungsverfahren zum Einwalzen verbleiter Rohre in ebenfalls verbleite Rohrböden, beii dem eine verwerfungsfreie; überall dicht aufliegende Auskleidung der Rohre, Rohrenden und Rohrböden in besonders gleichmäßiger korrosionsfester und strömungsgünstiger Weise erzielt wird.The invention relates to a manufacturing process for such preheaters for rolling leaded pipes into leaded pipe sheets, in which a distortion-free; Everywhere tight lining of the pipes, pipe ends and pipe sheets in special more uniform corrosion-resistant and flow-favorable manner is achieved.

Nach der Erfindung werden die in die Flußstahlrohre einzusetzenden Bleirohre kürzer als. diese gewählt, um das Einwalzen der Flußstahlrohre in die Rohrböden zu ermöglichen. Nach dem Einwalzen der Rohrenden in. die Rohrböden werden nach einem weiteren Merkmal der Erfindung die Bleirohre mit der Verbleiung :des Rohrbodens mittels außen umgebördelter Bleieinsatzbuchsen durch Lotung verbunden.According to the invention are to be used in the mild steel pipes Lead pipes shorter than. this chosen to prevent the rolling of the mild steel pipes into the To enable tube sheets. After rolling the pipe ends into the pipe sheets according to a further feature of the invention, the lead pipes with the lead: des The tube sheet is connected by soldering by means of lead insert sockets flanged on the outside.

Die Zeichnung zeigt in Abb. 1 den Längsschnitt, Abb.2- den Querschnitt eines üblichen, gemäß der Erfindung ausgebildeten Flüssigkeitsvorwärmers und in Abb. 3 einen: vergrößerten Ausschnitt A der Abb. 1 in verschiedenen Bearbeitungsstufen. In die innen verzinnten Flußstahlrohre i werden kürzere, außen verzinnte Bleirohre 2 eingesetzt, einseitig bei 3 angelötet und in Richtung der Pfeile 4 auf geweitet, um .dadurch ein fugenloses Aufsitzen. der Eisenrohre auf den Bleirohren zu erzielen. Durch nachfolgendes Erwärmen, der Rohre wird ein dichtes Abbinden der beiden verzinnten Flächen 5 erreicht. Darauf werden die Rohre in die bereits vorher mit homogener Verbleeiung 6 versehenen Rohrböden 7 eingewalzt und verstemmt. An den Walzstellen werden Bleibuchsen 8 von gleicher Dicke wie die Bleirohre eingeschoben und mit den Bleirohren gut verlötet. Die überstehenden Emdern werden umgebördelt und mit der auf die Rohrböden aufgebrachten Verbleiung verlötet.The drawing shows in Fig. 1 the longitudinal section, Fig.2- the cross section a conventional liquid preheater designed according to the invention and in Fig. 3 an: enlarged section A of Fig. 1 in different processing stages. Shorter, externally tinned lead pipes are inserted into the internally tinned mild steel pipes 2 inserted, soldered on one side at 3 and widened in the direction of the arrows 4, around .thereby a seamless sitting. to achieve the iron pipes on the lead pipes. Subsequent heating of the tubes will create a tight bond between the two tinned tubes Areas 5 reached. Thereupon the pipes in the previously with are more homogeneous Leading 6 provided tube sheets 7 rolled and caulked. At the rolling points lead sockets 8 of the same thickness as the lead pipes are inserted and with the Lead pipes soldered well. The protruding Emdern are flanged and with the soldered lead applied to the tube sheets.

Claims (1)

PATENTANSPRUCH: Fertigungsverfahren zum Einwalzen innenverbleiter Rohre in. ebenfalls verbleite Rohrböden von Flüssigkeitsvorwärmern u. dgl., dadurch gekennzeichnet, daß die in die Rohre eingesetzten inneren Bleirohre kürzer sind als die äußeren Rohre und nach dem Einwalzen der Rohrenden in .die Rohrböden die Bleirohre mit der Rohrbodenverbleiung mittels außen umgebördelter Bleieinsatzbuchsen durch Lotung verbunden werden. Angezogene Druckschriften: Deutsche Patentschrift Nr. 137 I16.PATENT CLAIM: Manufacturing process for rolling internally leaded pipes into. Also leaded pipe sheets of liquid preheaters and the like, characterized in that the inner lead pipes inserted into the pipes are shorter than the outer pipes and after the pipe ends have been rolled into The tube sheet lead can be connected by soldering by means of lead insert sockets flanged on the outside. Referenced publications: German patent specification No. 137 I16.
DEO594D 1939-07-28 1939-07-28 Manufacturing process for internally leaded liquid preheaters Expired DE881199C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEO594D DE881199C (en) 1939-07-28 1939-07-28 Manufacturing process for internally leaded liquid preheaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO594D DE881199C (en) 1939-07-28 1939-07-28 Manufacturing process for internally leaded liquid preheaters

Publications (1)

Publication Number Publication Date
DE881199C true DE881199C (en) 1953-06-29

Family

ID=7349252

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO594D Expired DE881199C (en) 1939-07-28 1939-07-28 Manufacturing process for internally leaded liquid preheaters

Country Status (1)

Country Link
DE (1) DE881199C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231270B (en) * 1958-11-13 1966-12-29 Andre Huet Pipe for heat exchanger
FR2447530A1 (en) * 1979-01-29 1980-08-22 Metallgesellschaft Ag Heat exchanger for corrosive material - uses lead pipe in plate with holed protective layer
DE3117187A1 (en) * 1981-04-30 1982-11-18 Sigri Elektrographit Gmbh, 8901 Meitingen Block-type heat exchanger
EP0451507A1 (en) * 1990-04-13 1991-10-16 Behr GmbH & Co. Heat-exchanger
WO2007006446A1 (en) * 2005-07-07 2007-01-18 Ruhr Oel Gmbh Shell-and-tube heat exchanger comprising a wear-resistant tube plate lining

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE137116C (en) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE137116C (en) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231270B (en) * 1958-11-13 1966-12-29 Andre Huet Pipe for heat exchanger
FR2447530A1 (en) * 1979-01-29 1980-08-22 Metallgesellschaft Ag Heat exchanger for corrosive material - uses lead pipe in plate with holed protective layer
DE3117187A1 (en) * 1981-04-30 1982-11-18 Sigri Elektrographit Gmbh, 8901 Meitingen Block-type heat exchanger
EP0451507A1 (en) * 1990-04-13 1991-10-16 Behr GmbH & Co. Heat-exchanger
WO2007006446A1 (en) * 2005-07-07 2007-01-18 Ruhr Oel Gmbh Shell-and-tube heat exchanger comprising a wear-resistant tube plate lining
JP2008545114A (en) * 2005-07-07 2008-12-11 ルール・エール・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Multi-tube cylindrical heat exchanger with heat-resistant tube sheet lining
US8210245B2 (en) 2005-07-07 2012-07-03 Ruhr Oel Gmbh Shell-and-tube heat exchanger comprising a wear-resistant tube plate lining
CN101228410B (en) * 2005-07-07 2013-05-29 鲁尔沃伊尔有限公司 Shell-and-tube heat exchanger comprising a wear-resistant tube plate lining

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