DE922561C - Metallic hollow bodies, in particular pipes or cylindrical vessels - Google Patents

Metallic hollow bodies, in particular pipes or cylindrical vessels

Info

Publication number
DE922561C
DE922561C DEB19597A DEB0019597A DE922561C DE 922561 C DE922561 C DE 922561C DE B19597 A DEB19597 A DE B19597A DE B0019597 A DEB0019597 A DE B0019597A DE 922561 C DE922561 C DE 922561C
Authority
DE
Germany
Prior art keywords
hollow bodies
metallic hollow
cylindrical vessels
core
particular pipes
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
DEB19597A
Other languages
German (de)
Inventor
Otto Dipl-Ing Konrad
Ludwig Dipl-Ing Raichle
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB19597A priority Critical patent/DE922561C/en
Application granted granted Critical
Publication of DE922561C publication Critical patent/DE922561C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/32—Heating of pipes or pipe systems using hot fluids
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/70—Cooling of pipes or pipe systems
    • 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
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/70—Cooling of pipes or pipe systems
    • F16L53/75—Cooling of pipes or pipe systems using cooling fins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Metallische Hohlkörper, insbesondere Rohre oder zylindrische Gefäße Zusatz zum Patent 901645 Gegenstand des Patents gor 645 sind metallische Hohllkörper, insbesondere Rohre oder zylindrische Gefäße, die auf der Außenseite angeschweißte Bauelemente, wie Rippen, Dorne oder Kühl- bow. Heizrohre od. dgl., besitzen, wobei diese Bauelemente auf ein um einen Kern, z. B. ein Kernrohr, vorteilhaft mit Vorspannung,wendelförmig gewickeltes, gegebenenfalls. profiliertes Metallband aufgeschweißt sind. Bei dieser Bauweise der Hohlkörper kommt es.bei Außenbehefzung @bzw. Kühlung von innen vor, daß sich das wendelförmig aufgewickelte Metallhand vom Kernrohr ablöst, beispielsweise bei starker Ausdehnung des Bandes gegenüber dem Kernrohr oder bei stärkerer Zusammenziehung des Kernrohres gegenüber dem aufgewickelten Metall-,band.Metallic hollow bodies, in particular pipes or cylindrical vessels Addition to patent 901 645 The subject of the patent gor 645 are metallic hollow bodies, in particular pipes or cylindrical vessels, the components welded on the outside, such as ribs, mandrels or cooling bow. Heating pipes od. Like. Have, these components on a core, z. B. a core tube, advantageously with bias, helically wound, optionally. profiled metal band are welded on. With this construction of the hollow body es.bei Außenbehefzung @ or. Cooling from the inside so that the helically wound metal hand becomes detached from the core tube, for example when the tape expands significantly compared to the core tube or when the core tube is more strongly contracted compared to the wound metal tape.

,Gemäß der Erfindung -wird dieser Mißstand -dadurch behoben, daß das Kernrohr und das Metallband aus: Werkstoffen mit verschiedenen Aus-dehnungskoeffizienten bestehen, derart, diaß das Metallband für den Fall der Beheizung des fertigen Körpers, von außen einen kleineren und für den. Fall der Kühlung von innen einen größeren Ausdehnungskoeffizienten besitzt als das Kernrohr.According to the invention, this deficiency is remedied by the fact that the Core tube and the metal strip made of: materials with different expansion coefficients exist, in such a way that the metal band in the event of heating of the finished body, from the outside a smaller one and for the. Case of cooling from the inside a bigger one Has expansion coefficients than the core tube.

Metallische Hohlkörper .der beschriebenen Art sind z. B. aus folgenden Werkstoffen zusammengesetzt: Das Kernrohr aus Stahl und die Widklung aus C'hromm-Nickelstahl oder das Kernrohr aus Kupfer und die Wicklung aus Stahl.Metallic hollow bodies. Of the type described are, for. B. from the following Composed of materials: The steel core tube and the display made of C'hromm nickel steel or the core tube made of copper and the winding made of steel.

Claims (1)

PATENTANSPRUCH: Metallische Hohlkörper, insbesondere Rohre oder zylindrische Gefäße, die lauf lder Außenseite angeschweißte Bauelemente, wie Rippen,, Dorne oder Kühl- bzw. Heizrohre u. dgl., besitzen, nach Patent gor 645, dadurch geken izeichnet, daß der Kern, insbesondere das Kernrohr, und das Metal@lb!and aus Werkstoffen mit verschiedenen Ausdehnungskoeffizienten bestehen, derart, daß ,das Metallband für -den Fall der Beheizung des Körpers von außen einen kleineren und bei Kühlung von innen einen größeren Ausdehnungskoefüzienten besitzt als. der Kern.PATENT CLAIM: Metallic hollow bodies, in particular tubes or cylindrical ones Vessels that have structural elements welded on the outside, such as ribs, spikes or Cooling or heating pipes and the like, have, according to patent gor 645, thereby geken izeichnet, that the core, in particular the core tube, and the metal @ lb! and made of materials with different expansion coefficients exist, such that the metal strip for - in the case of heating the body from the outside a smaller one and in the case of cooling of has a greater coefficient of expansion inside than. the core.
DEB19597A 1952-03-20 1952-03-20 Metallic hollow bodies, in particular pipes or cylindrical vessels Expired DE922561C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB19597A DE922561C (en) 1952-03-20 1952-03-20 Metallic hollow bodies, in particular pipes or cylindrical vessels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB19597A DE922561C (en) 1952-03-20 1952-03-20 Metallic hollow bodies, in particular pipes or cylindrical vessels

Publications (1)

Publication Number Publication Date
DE922561C true DE922561C (en) 1955-01-20

Family

ID=6960099

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB19597A Expired DE922561C (en) 1952-03-20 1952-03-20 Metallic hollow bodies, in particular pipes or cylindrical vessels

Country Status (1)

Country Link
DE (1) DE922561C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29508134U1 (en) * 1995-05-17 1995-09-14 Elpag Ag Chur, Chur Air conditioning register with tubular element having flat elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29508134U1 (en) * 1995-05-17 1995-09-14 Elpag Ag Chur, Chur Air conditioning register with tubular element having flat elements

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