DE758777C - Line for hot, stressed gas turbine propellants - Google Patents

Line for hot, stressed gas turbine propellants

Info

Publication number
DE758777C
DE758777C DEM146610D DEM0146610D DE758777C DE 758777 C DE758777 C DE 758777C DE M146610 D DEM146610 D DE M146610D DE M0146610 D DEM0146610 D DE M0146610D DE 758777 C DE758777 C DE 758777C
Authority
DE
Germany
Prior art keywords
hot
heat
gas turbine
line
propellants
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
DEM146610D
Other languages
German (de)
Inventor
Michael Dipl-Ing Martinka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEM146610D priority Critical patent/DE758777C/en
Application granted granted Critical
Publication of DE758777C publication Critical patent/DE758777C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/78—Other construction of jet pipes
    • F02K1/82—Jet pipe walls, e.g. liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/30—Exhaust heads, chambers, or the like
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/147—Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe

Description

Die Erfindung bezieht sich auf Leitungen für heiße, gespannte Gasturbinentreibgase mit einer zwischen einer äußeren, druckfesten und einer inneren, hochhitzebeständigen Metallwand angeordneten Schicht eines wärmedämmenden festen Stoffes.The invention relates to lines for hot, pressurized gas turbine propellants with one between an outer, pressure-resistant and an inner, highly heat-resistant Metal wall arranged layer of a heat insulating solid material.

Bei den bekannten Leitungen dieser Art besteht die innere Metallwand aus einzelnen Rohrstücken, deren Enden axial gegeneinander beweglich sind, die aber in Umfangsrichtung geschlossene, fugenlose Zylinder bilden. Diese Zylinder dehnen sich unter dem Einfluß der Erhitzung durch die heißen, hindurchgeführten Gase sowohl in Längs- als auch in Umfangsrichtung. Während die Längsdehnungen ohne Nachteil für die Leitung möglich sind, da die Rohrstücke axiales Spiel zueinander haben, üben die Umfangsdehnungen einen Druck auf die umgebende Schicht des wärmedämmenden festen Stoffes aus. Hierdurch kann diese Schicht zerstört werden, und es entstehen außerdem zusätzliche Drücke auf die Außenwand.In the known lines of this type, there is an inner metal wall from individual pieces of pipe, the ends of which are axially movable against each other, but which Form closed, jointless cylinders in the circumferential direction. Stretch these cylinders under the influence of heating by the hot gases passed through both in the longitudinal as well as in the circumferential direction. While the longitudinal stretching without any disadvantage for the line are possible because the pipe sections have axial play to each other, the circumferential strain exerts a pressure on the surrounding layer of the insulating material solid material. This can destroy this layer and create it also additional pressures on the outer wall.

Das Ziel der Erfindung ist es, zu vermeiden, daß durch die Wärmedehnung der Innenwand die dahinterliegende Schicht belastet wird. Dabei muß der staubdichte Abschluß des Innenraumes gegenüber dem mit wärmedämmendem Stoff gefüllten Ringraum gewährleistet sein.The aim of the invention is to avoid being caused by thermal expansion the layer behind it is loaded on the inner wall. It must be dustproof Completion of the interior with respect to the annular space filled with heat-insulating material to be guaranteed.

Erreicht wird dieses dadurch, daß die hochhitzebeständige Metallwand allseitig wärmedehnungsfähig mit einem staub-, aber nicht gasdichten, überlappten Längsschlitz ausgeführt ist, so daß.einDruckausgleich zwischen dem Innenraum der Leitung und dem Ringraum, in welchem sich der wärmedämmende Stoff befindet, stattfinden und die Wärmedehnung des Innenmantels keine schädlichen Druckspannungen in dem wärmedämmenden Stoff hervorrufen kann.This is achieved in that the highly heat-resistant metal wall heat-expandable on all sides with a dust-tight, but not gas-tight, overlap Longitudinal slot is designed so that.ein pressure equalization between the interior of the Line and the annulus in which the insulating material is located, take place and the thermal expansion of the inner jacket no harmful compressive stresses in the heat insulating Substance can cause.

Die Zeichnung stellt im Längs- und Querschnitt eine solche Leitung in Form eines zylindrischen Rohres dar. Der äußere metallene Mantel a ist mit der wärmedämmenden Schicht b ausgekleidet, deren innere Oberfläche von dem Metallmantel c aus hochhitzebeständiger Legierung bedeckt wird. Der innere Metallmantel ist längs geschlitzt, und die Schlitzung d ist überlappt ausgeführt, wodurch ein staubdichter und dehnungsfähiger, aber nicht gasdichter Abschluß erreicht wird.The drawing shows such a line in longitudinal and cross-section in the form of a cylindrical tube. The outer metal jacket a is with the thermal insulating layer b, the inner surface of which is lined by the metal jacket c is covered from high temperature alloy. The inner metal jacket is longitudinal slotted, and the slit d is carried out overlapping, making a dustproof and expandable, but not gas-tight closure is achieved.

Claims (1)

PATENTANSPRUCH: Leitungen für heiße, gespannte Gasturbinentreibgase mit einer zwischen einer äußeren, druckfesten und einer inneren, hochhitzebeständigen Metallwand angeordneten Schicht eines wärmedämmenden festen Stoffes, dadurch gekennzeichnet, daß die hochhitzebeständige Metallwand allseitig wärmedehnungsfähig mit einem staub-, aber nicht gasdichten, überlappten Längsschlitz ausgeführt ist. Zur Abgrenzung des Erfindungsgegenstands vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: Deutsche Patentschrift Nr. 453 9o6; österreichische Patentschrift Nr. 157 04i.PATENT CLAIM: Lines for hot, tensioned gas turbine propellant gases with a layer of a heat-insulating solid material arranged between an outer, pressure-resistant and an inner, highly heat-resistant metal wall, characterized in that the highly heat-resistant metal wall is designed to be heat-expandable on all sides with a dust-tight, but not gas-tight, overlapping longitudinal slot . To distinguish the subject matter of the invention from the state of the art, the following publications were taken into account in the granting procedure: German Patent No. 453 906; Austrian patent specification No. 157 04i.
DEM146610D 1939-12-03 1939-12-03 Line for hot, stressed gas turbine propellants Expired DE758777C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM146610D DE758777C (en) 1939-12-03 1939-12-03 Line for hot, stressed gas turbine propellants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM146610D DE758777C (en) 1939-12-03 1939-12-03 Line for hot, stressed gas turbine propellants

Publications (1)

Publication Number Publication Date
DE758777C true DE758777C (en) 1954-11-22

Family

ID=7336066

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM146610D Expired DE758777C (en) 1939-12-03 1939-12-03 Line for hot, stressed gas turbine propellants

Country Status (1)

Country Link
DE (1) DE758777C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE453906C (en) * 1927-12-21 Heinrich Roesener Tube for conveying hot media
AT157041B (en) * 1936-12-24 1939-09-25 Tech Studien Ag Pipeline for hot gases, steam or the like.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE453906C (en) * 1927-12-21 Heinrich Roesener Tube for conveying hot media
AT157041B (en) * 1936-12-24 1939-09-25 Tech Studien Ag Pipeline for hot gases, steam or the like.

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