DE758777C - Line for hot, stressed gas turbine propellants - Google Patents
Line for hot, stressed gas turbine propellantsInfo
- 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
Links
- 239000003380 propellant Substances 0.000 title claims description 3
- 239000002184 metal Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 4
- 239000011343 solid material Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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 sleeves; consisting of two half sleeves; comprising more than two segments
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Insulation (AREA)
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)
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)
| 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. |
-
1939
- 1939-12-03 DE DEM146610D patent/DE758777C/en not_active Expired
Patent Citations (2)
| 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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