SE503982C2 - Heat insulated piping - Google Patents
Heat insulated pipingInfo
- Publication number
- SE503982C2 SE503982C2 SE9503707A SE9503707A SE503982C2 SE 503982 C2 SE503982 C2 SE 503982C2 SE 9503707 A SE9503707 A SE 9503707A SE 9503707 A SE9503707 A SE 9503707A SE 503982 C2 SE503982 C2 SE 503982C2
- Authority
- SE
- Sweden
- Prior art keywords
- pipe
- media
- tube
- channels
- protective
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000005485 electric heating Methods 0.000 claims abstract description 4
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 22
- 239000011810 insulating material Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process 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
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
- F16L9/19—Multi-channel pipes or pipe assemblies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Thermal Insulation (AREA)
- Pipe Accessories (AREA)
Abstract
Description
15 20 25 30 35 503 982 2 ingressen till krav 1 nämnda typen såsom indikerats i den känne- tecknande delen av krav 1. The preamble of claim 1 said type as indicated in the characterizing part of claim 1.
Härigenom uppnås för det första att ingen diffusion av vattenånga sker igenom skyddsröret in i isoleringen. För det andra kommer den tillförda värmen att jämnt fördelas över hela skyddsröret och samti- digt kommer en jämnt fördelad tillförsel av värme till utrymmet mel- lan mediaröret och skyddsröret att äga rum. För det tredje är rör- ledningen enkel att sätta samman och därför billig att producera, eftersom kablar för elektrisk uppvärmning kan föras in i kanalerna efter att röret har framställts.In this way, it is achieved, firstly, that no diffusion of water vapor takes place through the protective pipe into the insulation. Secondly, the supplied heat will be evenly distributed over the entire protective pipe and at the same time an evenly distributed supply of heat to the space between the media pipe and the protective pipe will take place. Thirdly, the pipeline is easy to assemble and therefore inexpensive to produce, since cables for electric heating can be inserted into the ducts after the pipe has been manufactured.
Genom att följa riktlinjerna i krav 2 uppnås att kanalerna skapar minsta möjliga motstånd mot införing av en uppvärmningskabel.By following the guidelines in claim 2, it is achieved that the ducts create the least possible resistance to the insertion of a heating cable.
Genom att följa riktlinjerna hos krav 3 uppnås att skyddsröret komplett med kanaler blir enklare och därför billigare att framställa.By following the guidelines of claim 3, it is achieved that the protective tube complete with ducts becomes simpler and therefore cheaper to manufacture.
Genom att följa riktlinjerna hos krav 4 uppnås att ingen àngdiffusion igenom mediarörets vägg sker.By following the guidelines of claim 4, it is achieved that no vapor diffusion occurs through the wall of the media tube.
Genom att följa riktlinjerna hos krav 5 uppnås att ånga, vilken under extrema förhållanden, då värmetillförseln fallerar, har diffunderat igenom mediarörets vägg in i utrymmet mellan mediaröret och skyddsröret, kan ventileras ut i atmosfären.By following the guidelines of claim 5, it is achieved that steam, which under extreme conditions, when the heat supply fails, has diffused through the wall of the media tube into the space between the media tube and the protective tube, can be vented into the atmosphere.
Genom att följa riktlinjerna hos krav 6 uppnås att ingen fuktighet kan penetrera igenom isoleringen utifrån, och röret kommer att ha den nödvändiga styvheten.By following the guidelines of claim 6, it is achieved that no moisture can penetrate through the insulation from the outside, and the pipe will have the necessary rigidity.
Uppfinningen skall härefter beskrivas i detalj med hänvisning till ritningen, vilken visar ett tvärsnitt av en rörledning framställd enligt uppfinningen.The invention will now be described in detail with reference to the drawing, which shows a cross section of a pipeline manufactured according to the invention.
Såsom visas på ritningen består ett värmeisolerat rör enligt uppfin- ningen av ett inre mediarör 1, gjort av ett syntetmaterial, till exem- 10 15 20 25 30 35 '505 982 pel PE. Mediaröret 1 är omgivet av ett skyddsrör 2, vars innerdia- meter är större än mediarörets 1 ytterdiameter, så att ett utrymme 9 mellan mediaröret 1 och skyddsröret 2 föreligger.As shown in the drawing, a heat-insulated pipe according to the invention consists of an inner media pipe 1, made of a synthetic material, for example PE. 15 15 25 25 30 35 '505 982 PE. The media tube 1 is surrounded by a protective tube 2, the inner diameter of which is larger than the outer diameter of the media tube 1, so that a space 9 exists between the media tube 1 and the protective tube 2.
Skyddsröret 2 är gjort av ett ångtätt material med god värmeled- ningsförmåga, till exempel aluminium. Skyddsröret 2 är försett med ett antal kanaler 6, vilka löper längs med röret och kan vara place- rade på rörets 2 utsida och i värmeledande förbindelse med skydds- röret. Kanalerna 6 är primärt gjorda av samma material som skyddsröret 2. En del av kanalerna 6 eller samtliga kanaler är för- bundna med en värmekälla, till exempel varmvatten eller ånga. Så- som visas kan även kablar 3 för elektrisk uppvärmning vara place- rade i en del av kanalerna. l andra kanaler kan elektriska ledare för andra syften, till exempel manöverledningar, vara placerade.The protective tube 2 is made of a vapor-tight material with good thermal conductivity, for example aluminum. The protective tube 2 is provided with a number of channels 6, which run along the tube and can be placed on the outside of the tube 2 and in heat-conducting connection with the protective tube. The ducts 6 are primarily made of the same material as the protective pipe 2. Some of the ducts 6 or all ducts are connected to a heat source, for example hot water or steam. As shown, cables 3 for electric heating can also be placed in some of the ducts. In other channels, electrical conductors for other purposes, such as control cables, may be located.
Kanalerna 6 kan med fördel vara orienterade på sådant sätt att deras centrumaxel 7 är parallell med skyddsrörets 2 centrumaxel 8.The channels 6 can advantageously be oriented in such a way that their center axis 7 is parallel to the center axis 8 of the protective tube 2.
Kanalerna 6 kan ha samma tjocklek som röret 2 och kan, såsom visas, ha ett cirkulärt tvärsnitt.The channels 6 can have the same thickness as the tube 2 and can, as shown, have a circular cross-section.
Kanalerna 6 och skyddsröret 2 kan med fördel vara framställda i ett stycke genom extrudering.The channels 6 and the protective tube 2 can advantageously be made in one piece by extrusion.
Kring röret 2 finns ett värmeisolerande material 4, till exempel poly- uretanskum, och på själva utsidan är röret försett med ett ytterrör 5, vilket är icke permeabelt med avseende på vatten och ånga.Around the pipe 2 there is a heat-insulating material 4, for example polyurethane foam, and on the outside itself the pipe is provided with an outer pipe 5, which is not permeable with respect to water and steam.
Värmetillförseln kan ställas in så att temperaturen på mediarörets 1 utsida är åtminstone så hög som på rörets insida. Härigenom för- hindras en diffusion av ånga inifrån och ut igenom mediarörets vägg.The heat supply can be set so that the temperature on the outside of the media tube 1 is at least as high as on the inside of the tube. This prevents the diffusion of steam from inside and out through the wall of the media tube.
Utrymmet 9 mellan mediaröret 1 och skyddsröret 2 står i luftförbin- delse med atmosfären. Sålunda kan vattenhaltig ånga som under extrema förhållanden av bristande värmetillförsel har penetrerat in i utrymmet 9 försvinna ut i atmosfären. 10 503 982 Roren 2, 6, 4 och 5 kan vara prefabricerade och mediaröret 1 kan föras in i det prefabricerade röret under det att monteringen fram- skrider.The space 9 between the media tube 1 and the protective tube 2 is in air communication with the atmosphere. Thus, aqueous vapor which has penetrated into the space 9 under extreme conditions of lack of heat supply can disappear into the atmosphere. The tubes 2, 6, 4 and 5 may be prefabricated and the media tube 1 may be inserted into the prefabricated tube as the assembly progresses.
Uppfinningen är inte begränsad till den beskrivna och illustrerade utformningen. Kanalerna 6 och röret 2 kan till exempel ha en annan tvärsnittsform. Kanalerna 6 kan också vara konstruerade som hålig- heter i skyddsröret 2.The invention is not limited to the described and illustrated design. The channels 6 and the pipe 2 can, for example, have a different cross-sectional shape. The ducts 6 can also be designed as cavities in the protective pipe 2.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK045593A DK170312B1 (en) | 1993-04-21 | 1993-04-21 | Heat insulated pipeline |
PCT/DK1994/000155 WO1994024473A1 (en) | 1993-04-21 | 1994-04-19 | Heat insulated pipeline |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9503707D0 SE9503707D0 (en) | 1995-10-23 |
SE9503707L SE9503707L (en) | 1995-12-21 |
SE503982C2 true SE503982C2 (en) | 1996-10-14 |
Family
ID=8093755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9503707A SE503982C2 (en) | 1993-04-21 | 1995-10-23 | Heat insulated piping |
Country Status (5)
Country | Link |
---|---|
CA (1) | CA2161017A1 (en) |
DK (1) | DK170312B1 (en) |
FI (1) | FI955021A (en) |
SE (1) | SE503982C2 (en) |
WO (1) | WO1994024473A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19708347C1 (en) * | 1997-03-01 | 1998-06-10 | Asp Armaturen Schilling Puspas | Passage through masonry for pipe and electric lead |
FR2970949B1 (en) | 2011-01-27 | 2014-06-13 | Faurecia Sys Echappement | PROCESS FOR MANUFACTURING HEATED STRUCTURES, HEATING VESSELS, STRUCTURES AND CORRESPONDING VESSELS |
CN102330851A (en) * | 2011-07-26 | 2012-01-25 | 广东联塑科技实业有限公司 | Water supply piping material with electric heating film and production process of same |
AU2013232843B2 (en) * | 2012-03-14 | 2017-07-27 | Purapipe Holding Ltd. | Multilayer pipeline in a polymer material, device for manufacture of the multilayer pipeline and a method for manufacturing the multilayer pipeline |
CN105387292A (en) * | 2015-12-29 | 2016-03-09 | 淄博环能海臣环保技术服务有限公司 | Metal conductor electric heating heat-preservation plastic pipe |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4233816A (en) * | 1979-08-08 | 1980-11-18 | Pennwalt Corporation | Cryogenic fluid transfer line |
US4653541A (en) * | 1985-06-26 | 1987-03-31 | Parker Hannifin Corporation | Dual wall safety tube |
DK169262B1 (en) * | 1992-04-02 | 1994-09-26 | K B Loewenmark I S Raadgivende | Heat-distributing mounting system for clamping heating/cooling pipes on insulated pipes for liquid or gaseous media |
-
1993
- 1993-04-21 DK DK045593A patent/DK170312B1/en not_active IP Right Cessation
-
1994
- 1994-04-19 WO PCT/DK1994/000155 patent/WO1994024473A1/en active Application Filing
- 1994-04-19 CA CA002161017A patent/CA2161017A1/en not_active Abandoned
-
1995
- 1995-10-20 FI FI955021A patent/FI955021A/en not_active Application Discontinuation
- 1995-10-23 SE SE9503707A patent/SE503982C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2161017A1 (en) | 1994-10-27 |
FI955021A0 (en) | 1995-10-20 |
DK170312B1 (en) | 1995-07-31 |
DK45593D0 (en) | 1993-04-21 |
WO1994024473A1 (en) | 1994-10-27 |
SE9503707D0 (en) | 1995-10-23 |
DK45593A (en) | 1994-10-22 |
SE9503707L (en) | 1995-12-21 |
FI955021A (en) | 1995-12-19 |
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