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DE560244C - Finned tube exhaust air heater with individually expandable tubes - Google Patents

Finned tube exhaust air heater with individually expandable tubes

Info

Publication number
DE560244C
DE560244C DENDAT560244D DE560244DD DE560244C DE 560244 C DE560244 C DE 560244C DE NDAT560244 D DENDAT560244 D DE NDAT560244D DE 560244D D DE560244D D DE 560244DD DE 560244 C DE560244 C DE 560244C
Authority
DE
Germany
Prior art keywords
air heater
tubes
finned tube
exhaust air
tube exhaust
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
DENDAT560244D
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.)
PAUL LESCH
Original Assignee
PAUL LESCH
Publication date
Application granted granted Critical
Publication of DE560244C publication Critical patent/DE560244C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

56Ö24456Ö244

Bei Abgaslufterhitzern, die aus gußeisernen oder schmiedeeisernen Rippenrohren oder besser aus kupfernen Rohren mit schmiedeeisernen Rippen bestehen, muß die Ausdehnung der Rohre berücksichtigt werden.. Man walzt deshalb in üblicher Weise die Rohre zu Bündeln beiderseits in sogenannten Rohrplatten ein, wovon eine am Rand geschwächt ist, um bei der Ausdehnung des Rohrbündels nachzugeben. Auch läßt man die Rohre nach einer anderen Bauart auf einer Seite in Stopfbüchsen gleiten. Beide Hilfsmittel sind aber unzureichend für eine dauerhafte gasdichte Verbindung. Während im ersteren Falle sich nur das gesamte Rohrbündel ausdehnen kann, ist im zweiten wohl die Ausdehnung eines jeden Rohres für sich möglich, doch bietet die stopfbüchsenartige Lagerung der Rohre keinen dauernd dichten Gasabschluß.For exhaust air heaters made of cast iron or wrought iron finned tubes or better be made of copper pipes with wrought iron ribs, the expansion must of the tubes are taken into account. The tubes are therefore rolled in the usual way into bundles on both sides in so-called tube plates one of which one is weakened at the edge in order to yield when the tube bundle expands. The pipes are also released of another type slide into stuffing boxes on one side. Both tools are, however insufficient for a permanent gas-tight connection. While in the former case can only expand the entire tube bundle, the second is probably the expansion of one Each pipe is possible for itself, but the stuffing box-like storage of the pipes offers no permanently tight gas seal.

«ο Die Erfindung bezweckt die Beseitigung dieser Mängel durch gasdichten Abschluß der Rohre an beiden Enden und Ausdehnbarkeit eines jeden einzelnen Rohres.«Ο The invention aims to eliminate these deficiencies by gas-tight sealing of the pipes at both ends and expandability of every single pipe.

Die Rohre α werden an der Gaseintrittsseite b trichterförmig erweitert, um die Abgase möglichst reibungslos einströmen zu lassen, und vier- oder sechseckig geformt, um sie bei c untereinander stumpf verschweißen zu können, damit sich eine Abschlußplatte auf dieser Seite erübrigt. Auf der Gegenseite werden die Rohre α jedoch in Ringe e eingewalzt, die mit den Gegenringen d vernietet sind. Dazwischen befindet sich eine Weichmetallplatte / aus Kupfer, Messing oder ähnlich von gleichmäßiger Stärke, die zum Ab-Schluß dient und bei der Ausdehnung der einzelnen Rohre α nachgibt.The tubes α are widened in a funnel shape on the gas inlet side b in order to allow the exhaust gases to flow in as smoothly as possible, and they are square or hexagonal in order to be able to butt weld them to one another at c so that an end plate is unnecessary on this side. On the opposite side, however, the tubes α are rolled into rings e , which are riveted to the mating rings d. In between there is a soft metal plate / made of copper, brass or the like of uniform thickness, which serves as a closure and yields α when the individual tubes expand.

Claims (2)

Patentansprüche:Patent claims: ι. Rippenrohrabgaslufterhitzer mit einzein ausdehnbaren Rohren^ dadurch gekennzeichnet, daß die Rohre an ihrem einen Ende in einer biegsamen Weichmetallplatte (/) gleichmäßiger Stärke gelagert sind. 4Sι. Finned tube exhaust air heater with individually expandable tubes ^ characterized in that the tubes are mounted at one end in a flexible soft metal plate (/) of uniform thickness. 4 pp 2. Rippenrohrabgaslufterhitzer nach Anspruch 1, dadurch gekennzeichnet, daß die Rohre an ihrem einen Ende in Ringe (e) eingewalzt sind, die unter Zwischenlagerung einer biegsamen Weichmetallplatte (/) mit je einem Gegenring (d) vernietet sind.2. finned tube exhaust gas air heater according to claim 1, characterized in that the tubes are rolled at one end into rings (e) which are riveted with a flexible soft metal plate (/) each having a counter ring (d). Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DENDAT560244D Finned tube exhaust air heater with individually expandable tubes Expired DE560244C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE560244T

Publications (1)

Publication Number Publication Date
DE560244C true DE560244C (en) 1932-09-30

Family

ID=6565872

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT560244D Expired DE560244C (en) Finned tube exhaust air heater with individually expandable tubes

Country Status (1)

Country Link
DE (1) DE560244C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962284C (en) * 1953-05-03 1957-04-18 Steinmueller Gmbh L & C Cast iron air heater for high temperature ranges
DE1064538B (en) * 1955-05-16 1959-09-03 Ind Companie Kleinewefers Kons Cast heat exchanger tube
DE1157337B (en) * 1960-10-28 1963-11-14 Schmidt Sche Heissdampf Air preheater made of cuboid bodies
US3150714A (en) * 1955-09-01 1964-09-29 Ind Co Kleinewefers Konst Cast heat exchanger tube assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962284C (en) * 1953-05-03 1957-04-18 Steinmueller Gmbh L & C Cast iron air heater for high temperature ranges
DE1064538B (en) * 1955-05-16 1959-09-03 Ind Companie Kleinewefers Kons Cast heat exchanger tube
US3150714A (en) * 1955-09-01 1964-09-29 Ind Co Kleinewefers Konst Cast heat exchanger tube assembly
DE1157337B (en) * 1960-10-28 1963-11-14 Schmidt Sche Heissdampf Air preheater made of cuboid bodies

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