DE7027752U - THERMAL INSULATED PIPE. - Google Patents
THERMAL INSULATED PIPE.Info
- Publication number
- DE7027752U DE7027752U DE19707027752 DE7027752U DE7027752U DE 7027752 U DE7027752 U DE 7027752U DE 19707027752 DE19707027752 DE 19707027752 DE 7027752 U DE7027752 U DE 7027752U DE 7027752 U DE7027752 U DE 7027752U
- Authority
- DE
- Germany
- Prior art keywords
- spacers
- insulated pipe
- heat
- insulating layer
- pipe according
- 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
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
- F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
67 Ludwifcshafen am Rhein Qa 716 67 Ludwifcshafen am Rhein Qa 716
AP Sli/Hoi 21.7.1970AP Sli / Ho i July 21, 1970
Anmelderin; GRÜ1TZWEIG & HARTMAHH AEPIEHOESELiiSCHAiW 67 Ludvigshafen act Rhein Applicant; GRÜ1TZWEIG & HARTMAHH AEPIEHOESELiiSCHAiW 67 Ludvigshafen act Rhein
Sie Heuerung betrifft ein wärmeisoliertes Rohr mit einer porösen Isolierschicht aus insbesondre Glasfasern, Steinwolle, Schaumstoffen und einer äusseren ummantelung.You hiring concerns a thermally insulated pipe with a porous insulating layer made of in particular glass fibers, rock wool, foams and one outer sheath.
Isolierte Rohre sind in verschiedenen AusfOhrungsfornen bekannt. Bekannt sind ebenfalls im Freien verlegte Fernleitungen, welche Medien wie Dampf, HeisswasBer oder Kondensat führen. Sie bestehen meistens aus einem das Medium führenden Innenrohr, aus einer porösen Isolierschicht, aus beispielsweise Minerafcfasermatten und einem äusseren Schutzmantel aus Blech. In der Praxis hat sich nun gezeigt, dass in vielen Fällen, insbesondere bei Fernleitungen mit InnentemperaturenInsulated pipes are available in various designs known. Long-distance pipelines laid outdoors are also known, which media such as steam, hot water or condensate. They usually consist of an inner tube that carries the medium, a porous one Insulating layer, for example made of mineral fiber mats and an outer protective jacket made of sheet metal. In practice it has now been shown that in many cases, especially in the case of pipelines with internal temperatures
- 2 - Gm 716 - 2 - Gm 716
um 1000C, die Isolierschicht nach einer gewiesen Zeit, die einige Jahre betragen kann, stark durchfeuchtet ist, obwohl der Bleohmantel dicht zu sein scheint. Eine eindeutige theoretische Begründung für Sas Ansammeln der relativ grossen Waseermengen in der Isolierschicht konnte bisher nicht gefunden werden. Sicher ist jedoch, dass winzige Undichtheiten, insbesondere an den Querstössen der Rohrabschnitte, die durch Längenausdehnung der Rohrleitung entstehen, genügen, um Feuchtigkeit in Form von Oberflächenwasser oder Luftfeuchtigkeit von aussen in die Isolierung zuzuführen. Eine Erklärung dieser Erscheinung könnte ein periodischer, nicht umkehrbarer Pumpvorgang infolge schwankender Mitteltemporatur in der Isolierung sein.around 100 0 C, the insulating layer is heavily moistened after a certain time, which can be a few years, although the bleoh jacket seems to be tight. A clear theoretical justification for Sa's accumulation of the relatively large amounts of water in the insulating layer has not yet been found. What is certain, however, is that tiny leaks, especially at the transverse joints of the pipe sections, which are caused by the longitudinal expansion of the pipeline, are sufficient to supply moisture in the form of surface water or air moisture from the outside into the insulation. An explanation for this phenomenon could be a periodic, irreversible pumping process due to fluctuating mean temperature in the insulation.
Gemäas der Erfindung wird nun ein mit einer Isolierschicht und äusserer Ummantelung versehenes Rohr vorgeschlagen, das bei seinem Einsatz den erwähnten Nachteil nicht aufweist. Das erfindungsgemäese Rohr ist dadurch gekennzeichnet, dass zwischen der Isolierschicht und der Ummantelung wenigstens teilweise ein Luftspalt vorgesehen ist, der mitteIr Abstandhalter gebildet iet. Als Abstandhalter können L-Profile dienen, die ggfs. zu je vier Stück mittels eines Ringes fest verbunden sind, der auf das zu Isolierende Rohr aufgeschoben ist. Ton Vorteil ist auch als Abstandhalter eine Hatte aus Kunststoffdraht oder Kunststoffgeflecht zu verwenden. Auch keramische Abstandhalter in Fortn kegelstumpf artiger Klötze oder andere geeignete Abstandhalter können eingesetzt werden.According to the invention, a pipe provided with an insulating layer and an outer jacket is proposed which does not have the disadvantage mentioned when it is used. The pipe according to the invention is characterized in that an air gap is at least partially provided between the insulating layer and the casing, which air gap is formed in the middle of spacers. L-profiles can serve as spacers, four of which are fixedly connected by means of a ring that is pushed onto the pipe to be insulated. It is also advantageous to use a plastic wire or plastic mesh hat as a spacer. Also ceramic spacers in Fo r tn frustoconical pads or other suitable spacers may be used.
Der zwischen Ummantelung und Isolierschicht vorgesehene Luftspalt kann auf dem ganzen Umfang des Rohres gleichmassig dick sein. Bei horizontaler Verlegung des wärmeisoliert« η Rohres, insbesondere bei grossem Durehaesser, ist es jedoch von Vorteil, Abstandhalter mit unterschied-The one provided between the jacket and the insulating layer The air gap can be of uniform thickness over the entire circumference of the pipe. If the heat-insulated pipe is laid horizontally, especially if the pipe is large, however, it is advantageous to use spacers with different
- 3 - Gm 716 - 3 - Gm 716
lieber Höhe derart anzuordnen, dass zwischen Isolierschicht und Ummantelung am oberen Teil dea Rohre» kein oier nur ein sehr gerirsger Luftspalt entsteht, der nach untenhin zunimmt, wobei im untersten Teil der grösete Abstand zwischen Isolierung und Ummantelung gebildet ist. It is better to arrange the height in such a way that between the insulating layer and the sheathing on the upper part of the pipes there is no or only a very narrow air gap that increases downwards, with the greatest distance between the insulation and the sheathing being formed in the lowest part.
In der Zeichnung ist ein AuefUhrungsbeispiel des erfindungsgenässon wärmeisolierten Rohres dargestellt.The drawing shows an example of the erfindungsgenässon heat-insulated pipe shown.
Innenrohr 6, das mit einer porösen Isolierschicht 3 umgeben ist. Der Schutzmantel 1 ist mit Hilfe von Abstandhalten! derart gestützt, dass zwischen dem Mantel 1 und der Isolierschicht 3 ein Luftspalt 2 gebildet iät.Inner tube 6, which is surrounded by a porous insulating layer 3. The protective jacket 1 is with the help to keep your distance! supported in such a way that an air gap 2 is formed between the jacket 1 and the insulating layer 3.
Pig. 2 zeigt aus !-Profilen bestehende Abstandhalter 4, die mittels eines Ringes 5 fest verbunden sind, der auf das zu isolierende Rohr 6 aufgeschoben ist.Pig. 2 shows spacers 4 consisting of! Profiles, which are firmly connected by means of a ring 5 which is pushed onto the pipe 6 to be insulated is.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19707027752 DE7027752U (en) | 1970-07-23 | 1970-07-23 | THERMAL INSULATED PIPE. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19707027752 DE7027752U (en) | 1970-07-23 | 1970-07-23 | THERMAL INSULATED PIPE. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE7027752U true DE7027752U (en) | 1970-11-05 |
Family
ID=34175148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19707027752 Expired DE7027752U (en) | 1970-07-23 | 1970-07-23 | THERMAL INSULATED PIPE. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE7027752U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3934252A1 (en) * | 1988-10-14 | 1990-04-19 | Architektur Bauwesen Hochschul | Flexible thermally insulated pipe casing section - consists of sleeve of corrugated plastics or metal, with end connections |
-
1970
- 1970-07-23 DE DE19707027752 patent/DE7027752U/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3934252A1 (en) * | 1988-10-14 | 1990-04-19 | Architektur Bauwesen Hochschul | Flexible thermally insulated pipe casing section - consists of sleeve of corrugated plastics or metal, with end connections |
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