DE3433180A1 - Process for the heat insulation of components in the high temperature range and materials for carrying out the process - Google Patents
Process for the heat insulation of components in the high temperature range and materials for carrying out the processInfo
- Publication number
- DE3433180A1 DE3433180A1 DE19843433180 DE3433180A DE3433180A1 DE 3433180 A1 DE3433180 A1 DE 3433180A1 DE 19843433180 DE19843433180 DE 19843433180 DE 3433180 A DE3433180 A DE 3433180A DE 3433180 A1 DE3433180 A1 DE 3433180A1
- Authority
- DE
- Germany
- Prior art keywords
- mat
- high temperature
- fiber material
- temperature range
- components
- 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.)
- Withdrawn
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 14
- 239000000463 material Substances 0.000 title claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract 2
- 239000011707 mineral Substances 0.000 claims abstract 2
- 239000002657 fibrous material Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 6
- 239000011888 foil Substances 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 2
- 102100040428 Chitobiosyldiphosphodolichol beta-mannosyltransferase Human genes 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/027—Bands, cords, strips or the like for helically winding around a cylindrical object
-
- 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
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C11/00—Shielding structurally associated with the reactor
- G21C11/08—Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation
- G21C11/081—Thermal shields; Thermal linings, i.e. for dissipating heat from gamma radiation which would otherwise heat an outer biological shield ; Thermal insulation consisting of a non-metallic layer of insulating material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Thermal Insulation (AREA)
Abstract
Description
Verfahren zur Warmeisolierung von Bauteilen im Hoch-Process for the thermal insulation of components in high
temperaturbereich und Werkstoffe zur Durchführung des Verfahrens Die vorliegende Erfindung betrifft ein Verfahren nach dem Oberbegriff des ersten Anspruchs. Es ist besonders geeignet für die Verwendung in Hochtemperatur-Kernenergieanlagen, die mit einem Gas, z.B. Helium,- bei Temperaturen bis zu 9500 C betrieben werden. Hier ist eine Isolierung insbesondere von Rohrleitungen erforderlich, und zwar nicht allein zur Vermeidung von Wärmeverlusten, die die Wirtschaftlichkeit der Anlage beeinträchtigen, sondern auch um das den Druckeinschluß besorgende Rohr, das aus Festigkeits- und Dichtheitsgründen aus Metall sein muß, vor dem Angriff des heißen Gases zu schützen.temperature range and materials for carrying out the process The present invention relates to a method according to the preamble of the first claim. It is particularly suitable for use in high temperature nuclear power plants, which are operated with a gas, e.g. helium, - at temperatures of up to 9500 C. Here, insulation in particular of pipelines is required, and indeed not solely to avoid heat loss, which would affect the profitability of the system affect, but also to the pressure confinement getting pipe that from Strength and tightness reasons must be made of metal, before the attack of the hot To protect the gas.
Dazu gehört auch, daß die Isolierung so angelegt sein muß, daß keine nennenswerten Konvektionsströme in ihr auftreten können, was sowohl eine gewisse Mindestdichte der Fasermatte bedingt, als auch dazu zwingt, den von der Isolierung eingenommenen Raum durch Konvektionsbarrieren in kleinere Räume zu unterteilen.This also means that the insulation must be applied in such a way that none significant convection currents can occur in it, which both a certain Minimum density of the fiber mat requires, as well as forces that of the insulation To divide the occupied space into smaller rooms by means of convection barriers.
Eine Innenisolierung für Rohrleitungen der beschriebenen Art, bei der faserförmiges Isoliermaterial in Kästen aus dünnem Blech eingeschlossen verwendet wird, die überlappend ausgeführt sind, um die zwischen Ihnen entstehenden Spalte abzudecken, hat die Anmelderin bereits früher in der Patentanmeldung P.32 08 883.3 beschrieben. Hier wie auch bei anderen bekannt gewordenen Isolierungen ähnlicher Art wird das faserförmige Material in den dafür bestimmten Raum gestopft, was erhebliche fertigungstechnische Probleme aufwirft, da sich so eine der Dichte nach gleichmäßige Verteilung des Isoliermaterials nur sehr schwer erreichen läßt. Da chemisch und mechanisch geeignete Isolierfasern auch in Mattenform erhältlich sind, liegt der Versuch nahe, die gewünschte Isolierung durch das Ubereinanderwikkeln solcher endloser Matten bis zum Erreichen der gewünschten Dicke herzustellen. Die erforderlichen Konvektionsbarrieren müssen jedoch in gesonderten Arbeitsgängen eingebaut werden.An inner insulation for pipes of the type described, at uses fibrous insulation material enclosed in boxes made of thin sheet metal that are designed to overlap around the gaps that arise between them to cover, the applicant has earlier in the patent application P.32 08 883.3 described. Here, as with other known insulations, more similar Kind becomes the fibrous material in the designated room stuffed, which raises significant manufacturing problems, since such a the density after uniform distribution of the insulating material is very difficult to achieve leaves. Because chemically and mechanically suitable insulating fibers are also available in mat form are, the attempt is obvious, the desired isolation by winding over each other to produce such endless mats to the desired thickness. the However, the necessary convection barriers must be installed in separate work steps will.
Aufgabe der vorliegenden Erfindung ist ein Verfahren zur Isolierung z.B. von Rohrleitungen, die im Hochtemperaturbereich eingesetzt werden können und das eine gleichmäßige Dichte der Isolierung gewährleistet.The object of the present invention is a method for isolation e.g. of pipelines that can be used in the high temperature range and which ensures a uniform density of the insulation.
Es soll darüberhinaus den Einbau der Konvektionsbarrieren erleichtern. Ferner Materialien, die zur Durchführung des Verfahrens besonders geeignet sind.It should also facilitate the installation of the convection barriers. Furthermore, materials that are particularly suitable for carrying out the method.
Die Lösung dieser Aufgabe erfolgt durch die im kennzeichnenden Teil des ersten Anspruchs angegebenen Mittel. Das Versteppen ist ein in der Textiltechnik bekanntes Mittel, um eine gleichmäßige Verteilung eines faserförmigen Materials auf einer größeren Fläche zu gewährleisten, die auch bei wiederholter Handhabung erhalten bleibt. Zugleich läßt sich mit dem Versteppen eine Erhöhung der Dichte des Faserverbandes bis in die Nähe jenes Optimums erreichen, bei dem einerseits ausreichend Gas zwischen den Fasern vorhanden ist, um die gewünschte Wärmedämmwirkung zu erzielen und andererseits die Dichte der Fase,- so groß ist, daß sie dem Entstehen von Konvektionsströmungen einen ausreichenden Widerstand entgegensetzt.The solution to this task is carried out by the in the characterizing part of the first claim specified means. Quilting is a part of textile technology known means to evenly distribute a fibrous material on a larger area to ensure that even with repeated handling preserved. At the same time, quilting increases the density of the fiber structure close to that optimum at which on the one hand there is sufficient gas between the fibers to achieve the desired thermal insulation effect and on the other hand the density of the bevel - is so great that it is about to arise offers sufficient resistance to convection currents.
Die Festigkeit und damit auch die Handhabbarkeit der Matte werden weiter erhöht, und durch zugleich zwischen den übereinandergelegten bzw. -gewickelten Lagen eingelegte Folien die nötigen Konvektionsbarrieren hergestellt.The strength and thus also the manageability of the mat are further increased, and at the same time between the superimposed or -wound Layers of inlaid foils create the necessary convection barriers.
Die im zweiten, dritten und vierten Anspruch alternativ vorgeschlagenen Werkstoffe für die Versteppung der Matten sind je nach dem erforderlichen Grad der Hitzefestigkeit und der chemischen Verträglichkeit'mit der Umgebungsatmosphäre auszuwählen.The alternative proposed in the second, third and fourth claims Materials for the quilting of the mats are depending on the required degree of Heat resistance and chemical compatibility with the surrounding atmosphere.
Gemäß der im fünften Anspruch vorgeschlagenen Ausgestaltung der Erfindung wird als zugleich hitzefeste, undurchlässige und ausreichend flexible Folie eine solche aus Graphit vorgeschlagen.According to the embodiment of the invention proposed in the fifth claim becomes a heat-resistant, impermeable and sufficiently flexible film at the same time those made of graphite are proposed.
Zum im sechsten Anspruch vorgeschlagenen Aufkleben der Matte auf diese Folie empfiehlt sich die Verwendung eines Klebers auf Graphitbasis.For the proposed in the sixth claim gluing the mat on this Foil we recommend using a graphite-based adhesive.
Ein Ausführungsbeispiel der Erfindung ist in der. Zeichnung dargestellt und zwar zeigt Fig. 1 einen Schnitt, Fig. 2 eine Aufsicht auf ein beliebigen Stück der Matte und Fig. 3 einen Schnitt durch eine Rohrleitung während des Aufbringens der Isolierung.An embodiment of the invention is in. Drawing shown and in fact Fig. 1 shows a section, Fig. 2 shows a plan view of an arbitrary piece of the mat and FIG. 3 shows a section through a pipeline during application the insulation.
Eine Matte 1 aus einer mineralischen Faser, vorzugsweise mit einem Anteil von 95 % Aluminiumoxid, ist mit einem Kohle-, Keramik- oder Metallfaden 2 versteppt und damit zugleich verdichtet und so verfrstigt worden, daß sie ohne Schwierigkeiten beispielsweise in mehreren Lagen übereinander gewickelt werden kann. Die Matte ist dann mit Hilfe eines Klebstoffes 3 auf Graphitbasis auf eine z.B..1 mm dicke, flexible Graphitfolie 4 aufgeklebt, die den Zusammenhalt der Matte weiter sichert und zugleich gasdichte Barrieren zwischen einzelnen- übereinandergelegten oder -gewickelten Lagen der Matte herstellt.A mat 1 made of a mineral fiber, preferably with one Share of 95% aluminum oxide, is with a carbon, ceramic or metal thread 2 quilted and thus at the same time condensed and so solidified that they were without difficulty for example, can be wrapped in several layers on top of each other. The mat is then with the help of an adhesive 3 based on graphite on a e.g. 1 mm thick, flexible Graphite foil 4 glued on, which further secures the cohesion of the mat and at the same time gas-tight barriers between individual layers laid or wrapped one on top of the other who makes the mat.
In der Fig. 3 ist das keramische Innenrohr 5 einer. Hochtemperatur-Gasleitung dargestellt, das nach Beendigung der Isolierarbeit in ein hier nicht dargestelltes metallisches Außenrohr eingebaut wird. Die miteinander verklebten Lagen von Fasermatte 1 und Folie 4 sind spiralförmig übereinandergewickelt.In Fig. 3, the ceramic inner tube 5 is a. High temperature gas pipe shown, which after completion of the insulation work in a not shown here metallic outer tube is installed. The layers of fiber mat glued together 1 and film 4 are wound spirally one above the other.
- Leerseite -- blank page -
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843433180 DE3433180A1 (en) | 1983-09-09 | 1984-09-10 | Process for the heat insulation of components in the high temperature range and materials for carrying out the process |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3332620 | 1983-09-09 | ||
DE19843433180 DE3433180A1 (en) | 1983-09-09 | 1984-09-10 | Process for the heat insulation of components in the high temperature range and materials for carrying out the process |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3433180A1 true DE3433180A1 (en) | 1985-04-25 |
Family
ID=25813877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843433180 Withdrawn DE3433180A1 (en) | 1983-09-09 | 1984-09-10 | Process for the heat insulation of components in the high temperature range and materials for carrying out the process |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3433180A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4808370A (en) * | 1985-05-23 | 1989-02-28 | Interatom Gmbh | Connection of a hot gas line to the core barrel of a gas-cooled high-temperature nuclear reactor |
EP0389634A1 (en) * | 1988-08-19 | 1990-10-03 | Osaka Gas Co., Ltd. | Molded heat insulator and process for its production |
US5242723A (en) * | 1988-08-19 | 1993-09-07 | Osaka Gas Company, Ltd. | Formed thermal insulator and process for preparation of same |
EP2876347A1 (en) * | 2013-11-22 | 2015-05-27 | Saint-Gobain Isover G+H Ag | Insulation element for the heat and/or sound insulation of pipes, in particular flue ducts |
-
1984
- 1984-09-10 DE DE19843433180 patent/DE3433180A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4808370A (en) * | 1985-05-23 | 1989-02-28 | Interatom Gmbh | Connection of a hot gas line to the core barrel of a gas-cooled high-temperature nuclear reactor |
EP0389634A1 (en) * | 1988-08-19 | 1990-10-03 | Osaka Gas Co., Ltd. | Molded heat insulator and process for its production |
EP0389634A4 (en) * | 1988-08-19 | 1992-03-11 | Osaka Gas Company, Limited | Molded heat insulator and process for its production |
US5242723A (en) * | 1988-08-19 | 1993-09-07 | Osaka Gas Company, Ltd. | Formed thermal insulator and process for preparation of same |
EP2876347A1 (en) * | 2013-11-22 | 2015-05-27 | Saint-Gobain Isover G+H Ag | Insulation element for the heat and/or sound insulation of pipes, in particular flue ducts |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8120 | Willingness to grant licences paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |