DE29910536U1 - Pipe insulation - Google Patents
Pipe insulationInfo
- Publication number
- DE29910536U1 DE29910536U1 DE29910536U DE29910536U DE29910536U1 DE 29910536 U1 DE29910536 U1 DE 29910536U1 DE 29910536 U DE29910536 U DE 29910536U DE 29910536 U DE29910536 U DE 29910536U DE 29910536 U1 DE29910536 U1 DE 29910536U1
- Authority
- DE
- Germany
- Prior art keywords
- pipe insulation
- membrane
- insulation according
- pipe
- fleece
- 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 - Lifetime
Links
- 238000009413 insulation Methods 0.000 title claims description 21
- 239000012528 membrane Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000002209 hydrophobic effect Effects 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims 1
- 239000011810 insulating material Substances 0.000 claims 1
- 239000002557 mineral fiber Substances 0.000 claims 1
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004753 textile Substances 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
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
-
- 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
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Description
Die Erfindung betrifft eine Rohrisolierung nach dem Oberbegriff des Anspruches 1.The invention relates to a pipe insulation according to the preamble of claim 1.
Es sind schlauchförmige Rohrisolierungen bekannt, die aus einem Faservlies und einer das Faservlies umhüllenden Kunststoffolie bestehen. Bei dem Faservlies handelt es sich bevorzugt um solche aus Kunststoffasem. Je nach den Umgebungsbedingungen kann es beim umhüllten Rohr zu einer Schwitzwasserbildung kommen. Dies ist bei aus Kunststoff bestehenden Rohren, bei einem Faservlies aus Kunststoffasem und bei einer Umhüllung aus Kunststoffolie bezüglich der Korrosion unbedenklich. Durch das Schwitzwasser wird jedoch die Wärmeisolierfähigkeit des Faservlieses herabgesetzt.Tubular pipe insulations are known that consist of a nonwoven fabric and a plastic film covering the nonwoven fabric. The nonwoven fabric is preferably made of plastic fibers. Depending on the ambient conditions, condensation can form in the covered pipe. This is harmless in terms of corrosion in the case of plastic pipes, a nonwoven fabric made of plastic fibers and a covering made of plastic film. However, the condensation reduces the thermal insulation capacity of the nonwoven fabric.
Nachteilig ist jedoch die Schwitzwasserbildung bei Metallrohren, da diese korrodieren können. Dies gilt insbesondere an den Verbindungsstellen der Rohre mit Fittings aus einem anderen Metall als das Rohr. Die Korrosion an diesen Stellen wird durch die in der Isolierung befindliche Feuchtigkeit besonders nachteilig beeinflußt.However, the formation of condensation in metal pipes is a disadvantage, as these can corrode. This is particularly true at the connection points between pipes and fittings made of a different metal than the pipe. The corrosion at these points is particularly adversely affected by the moisture in the insulation.
Um diese Nachteile zu mindern, ist es bekannt, die Kunststoffumhüllung wasserdurchlässiger zu gestalten. Dies kann dadurch bewirkt werden, daß die Kunststoffolienumhüllung wendelförmig auf das Vlies aufgebracht wird. Daneben ist es bekannt, eine genadelte Folie zu verwenden. Hier tritt jedoch der Nachteil auf, daß von außen Wasser oder Dampf in die Rohrisolierung eindringen kann, was wiederum zur Korrosion eines aus Metall bestehenden Rohres führt.In order to reduce these disadvantages, it is known to make the plastic covering more permeable to water. This can be achieved by applying the plastic film covering to the fleece in a spiral shape. It is also known to use a needled film. However, this has the disadvantage that water or steam can penetrate the pipe insulation from the outside, which in turn leads to corrosion of a metal pipe.
Es besteht die Aufgabe, die Rohrisolierung so auszubilden, daß die vorerwähnten Korrosionen weitgehend vermieden werden.The task is to design the pipe insulation in such a way that the aforementioned corrosion is largely avoided.
Gelöst wird diese Aufgabe mit den Merkmalen des Anspruches 1. Vorteilhafte Ausgestaltungen sind den Unteransprüchen entnehmbar.This object is achieved with the features of claim 1. Advantageous embodiments can be found in the subclaims.
• ··
Durch die Verwendung einer mikroporösen, wasserdampfdurchlässigen und wasserdichten Membran wird erreicht, daß durch die Rohrisolierung von innen nach außen Wasserdampf durch die Membran hindurch geht, das Eindringen von Wasser in die Rohrisolierung von außen nach innen jedoch verhindert wird.By using a microporous, water vapor permeable and waterproof membrane, water vapor can pass through the pipe insulation from the inside to the outside, but water can not penetrate the pipe insulation from the outside to the inside.
Die Membran besteht aus einem wasserdampfdurchlässigen hydrophoben Mittel, bevorzugt aus Polytetrafluorethylen.The membrane consists of a water vapor permeable hydrophobic agent, preferably polytetrafluoroethylene.
Besteht die Rohrisolierung aus einem Vlies, dann bildet die Membran bevorzugt die äußere Hülle dieses Vlieses. Die Membran kann auf dieses Vlies als Laminat aufgebracht sein, bildet also eine Beschichtung des Vlieses. Alternativ dazu kann die Membran durch eine Dispersionsimprägnierung des Vlieses gebildet werden. Das Vlies kann von einer schlauchförmigen Hülle umgeben sein, bevorzugt aus einem textlien Material, die als Träger für die Membran dient. Diese Membran kann wiederum aus einer Laminatbeschichtung des Trägers bestehen oder aus einer Dispersionsimprägnierung dieses Trägers. Besteht das Vlies aus Glas- oder Mineralwolle, dann weist dieses eine membranbildende Dispersionsimprägnierung auf.If the pipe insulation consists of a fleece, then the membrane preferably forms the outer shell of this fleece. The membrane can be applied to this fleece as a laminate, thus forming a coating of the fleece. Alternatively, the membrane can be formed by a dispersion impregnation of the fleece. The fleece can be surrounded by a tubular shell, preferably made of a textile material, which serves as a carrier for the membrane. This membrane can in turn consist of a laminate coating of the carrier or of a dispersion impregnation of this carrier. If the fleece consists of glass or mineral wool, then it has a membrane-forming dispersion impregnation.
Das Vlies und die Membran können von einer durchlässigen Schutzhülle umgeben sein, die wiederum aus einem Vlies oder einer Folie, beispielsweise aus Polypropylen oder Polyethylen besteht.The fleece and the membrane can be surrounded by a permeable protective cover, which in turn consists of a fleece or a film, for example made of polypropylene or polyethylene.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29910536U DE29910536U1 (en) | 1999-06-16 | 1999-06-16 | Pipe insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29910536U DE29910536U1 (en) | 1999-06-16 | 1999-06-16 | Pipe insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29910536U1 true DE29910536U1 (en) | 2000-12-07 |
Family
ID=8074893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29910536U Expired - Lifetime DE29910536U1 (en) | 1999-06-16 | 1999-06-16 | Pipe insulation |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29910536U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2166268A2 (en) * | 2008-09-23 | 2010-03-24 | Paroc Oy Ab | Anti-corrosive insulated pipe section |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1525599A1 (en) * | 1966-12-10 | 1969-08-28 | Denso Chemie Gmbh | Anti-corrosion bandages |
| DE7338811U (en) * | 1974-01-24 | Missel E | Pipe insulation hose | |
| US4265952A (en) * | 1978-03-23 | 1981-05-05 | The Dow Chemical Company | Vermicular expanded graphite composite material |
| DE3721787A1 (en) * | 1987-07-01 | 1989-01-12 | Missel Gmbh & Co E | INSULATING HOSE FOR PIPELINES |
| DE3932291A1 (en) * | 1989-09-28 | 1991-04-11 | Wolfgang Ickas | Insulation material partic. for pipes - has inner and outer protective layers of polyethylene film with low friction and two-layer core of fine and coarse cell foam |
-
1999
- 1999-06-16 DE DE29910536U patent/DE29910536U1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7338811U (en) * | 1974-01-24 | Missel E | Pipe insulation hose | |
| DE1525599A1 (en) * | 1966-12-10 | 1969-08-28 | Denso Chemie Gmbh | Anti-corrosion bandages |
| US4265952A (en) * | 1978-03-23 | 1981-05-05 | The Dow Chemical Company | Vermicular expanded graphite composite material |
| DE3721787A1 (en) * | 1987-07-01 | 1989-01-12 | Missel Gmbh & Co E | INSULATING HOSE FOR PIPELINES |
| DE3932291A1 (en) * | 1989-09-28 | 1991-04-11 | Wolfgang Ickas | Insulation material partic. for pipes - has inner and outer protective layers of polyethylene film with low friction and two-layer core of fine and coarse cell foam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2166268A2 (en) * | 2008-09-23 | 2010-03-24 | Paroc Oy Ab | Anti-corrosive insulated pipe section |
| EP2166268A3 (en) * | 2008-09-23 | 2017-05-03 | Paroc Group Oy | Anti-corrosive insulated pipe section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R163 | Identified publications notified | ||
| R207 | Utility model specification |
Effective date: 20010111 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20021126 |
|
| R081 | Change of applicant/patentee |
Owner name: VOEWA GMBH, DE Free format text: FORMER OWNER: VOEWA ISOLIERMATERIAL GMBH, 86399 BOBINGEN, DE Effective date: 20041119 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20050808 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20071010 |
|
| R071 | Expiry of right |