NO136529B - - Google Patents
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- Publication number
- NO136529B NO136529B NO742504A NO742504A NO136529B NO 136529 B NO136529 B NO 136529B NO 742504 A NO742504 A NO 742504A NO 742504 A NO742504 A NO 742504A NO 136529 B NO136529 B NO 136529B
- Authority
- NO
- Norway
- Prior art keywords
- jacket
- pipe
- grains
- clay
- insulation jacket
- Prior art date
Links
- 238000009413 insulation Methods 0.000 claims description 10
- 239000004927 clay Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000005871 repellent Substances 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
- Special Wing (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Road Paving Structures (AREA)
- Thermal Insulation (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Description
I jord forleggbart ledningsrør med isolasjonsmantel, Conduit that can be laid in the ground with an insulating jacket,
særlig for fjernvarmeanlegg. especially for district heating systems.
I jord forleggbare ledningsrør, særlig Cable pipes that can be laid in the ground, in particular
for fjernvarmeanlegg, legges vanligvis i betong- eller metallplatekanaler. Det er også kjent å legge slike rør i jordsmon-net med en glassull- eller stenullman-tel, som omstøpes med tungbetong. Videre kjennes en fremgangsmåte ved hvilken rø-rets ommantling forsynes med en ikke vanntett skum- eller gassbetong. for district heating systems, are usually laid in concrete or sheet metal channels. It is also known to lay such pipes in the soil with a glass wool or stone wool jacket, which is recast with heavy concrete. Furthermore, a method is known in which the casing of the pipe is supplied with a non-waterproof foam or aerated concrete.
Oppfinnelsen går ut på å skaffe en i The invention is to provide an i
jord forleggbar ledning som er forsynt med en isolasjonsmantel som har en høy isolasjonsevne. Den nevnte høye isolasjonsevne beror på at der etter brenning av en bestanddel av ommantlingen oppstår et for-holdsvis lufttett glasursjikt. De av dette glasursjikt omgitte hulrom har ingen for-bindelse med den ytre luft og sørger videre for en liten vekt av ommantlingen. ground cable that is provided with an insulating jacket that has a high insulating capacity. The aforementioned high insulating ability is due to the fact that, after firing a component of the casing, a relatively airtight glaze layer is formed. The cavities surrounded by this glaze layer have no connection with the outside air and further ensure a small weight of the casing.
Isolasjonsmantelen har videre en høy The insulation jacket also has a high
trykkfasthet, som likeledes oppnås som følge av glasursjiktet. Denne høye trykkfasthet gjør det mulig å legge varmelednin-ger under et veidekke allerede ved en over-dekning på bare 50 cm. Ved denne overdek-ning kan røret med isolasjonsmantel i henhold til oppfinnelsen og tåle enhver tung trafikk. compressive strength, which is also achieved as a result of the glaze layer. This high compressive strength makes it possible to lay heating cables under a road surface even with a cover of only 50 cm. With this covering, the pipe with insulation jacket according to the invention can withstand any heavy traffic.
Foruten de to nevnte fordeler ved isolasjonsmantelen ved ledningsrøret i henhold til oppfinnelsen, oppnås en god vann-tetthet, som på den ene side skyldes det nevnte glasursjikt og på den annen side skyldes tilsetningen av et vannavvisende kunststoff. Både den bestanddel som ved brenningen danner et glasursjikt og det vannavstøtende kunststoff som anvendes i form av korn eller perler, er ved hjelp av kjent sement forbundet til en tett vann-avstøtende struktur. In addition to the two mentioned advantages of the insulation jacket at the conduit according to the invention, a good watertightness is achieved, which is on the one hand due to the aforementioned glaze layer and on the other hand due to the addition of a water-repellent plastic. Both the component which forms a glaze layer during firing and the water-repellent plastic used in the form of grains or beads are connected by means of known cement to form a dense water-repellent structure.
Sluttelig har isolasjonsmantelen ved røret i henhold til oppfinnelsen en høy bøyningsfasthet. Dette oppnås særlig ved tilsetningen av kunststoffperler eller kunst-stoffkorn, f. eks. av polystyrol. Denne høye bøyningsfasthet hindrer en sprekkdannel-se. Isolasjonsmantelen har også vist seg å tåle de høyeste belastninger. Eventuelt inntrengende vann om kunne fremkalle en korrosjon av ledningsrøret nøytraliseres på grunn av den høye pH-verdi av den ene bestanddel av isolasjonsmantelen. Finally, the insulation jacket at the pipe according to the invention has a high bending strength. This is achieved in particular by the addition of plastic beads or plastic grains, e.g. of polystyrene. This high bending strength prevents the formation of cracks. The insulation jacket has also been shown to withstand the highest loads. Any intruding water that could cause corrosion of the conduit is neutralized due to the high pH value of one component of the insulation jacket.
Oppfinnelsen går ut fra et i jord forleggbart ledningsrør med isolasjonsmantel, særlig for fjernvarmeanlegg og består i at rørmantelen er dannet av korn eller perler av porøst, vannavstøtende lettkunststoff, så som polystyrol, og en ved brenning ved 1100—1200° C oppblåsende leire med høyt Al-innhold, som er bundet ved hjelp av sement. Leiren har en korn-størrelse fra 0 til 10 mm og danner etter brenningsprosessen en glasur på leirekor-nene. The invention is based on a cable pipe with an insulation jacket that can be laid in the ground, especially for district heating systems, and consists of the pipe jacket being formed from grains or beads of porous, water-repellent lightweight plastic, such as polystyrene, and a clay that swells when fired at 1100-1200° C with a high Al content, which is bound by means of cement. The clay has a grain size of 0 to 10 mm and forms a glaze on the clay grains after the firing process.
En isolasjonsmantel med de ovenfor beskrevne kjennetegn kan ha utsparinger for samtidig opptagelse av flere rør. Man-telen kan ha rektangulær tverrsnittsform, i hvilken de enkelte utsparinger for led-ningsrørene er anordnet symmetrisk. Ut-sparingene kan også anordnes på den måte at det ledningsrør som skal ha den største isolasjons virkning anbringes sentralt i mantelens tverrsnitt mens de øvrige rør anordnes i sirkelform om dette førstnevnte rør eller på annen måte. An insulation jacket with the characteristics described above can have recesses for the simultaneous reception of several pipes. The casing can have a rectangular cross-sectional shape, in which the individual recesses for the conduits are arranged symmetrically. The recesses can also be arranged in such a way that the conduit pipe which is to have the greatest insulating effect is placed centrally in the cross-section of the jacket, while the other pipes are arranged in a circle around this first-mentioned pipe or in some other way.
Ved brenning av den granulerte leire overtrekkes kornene med en vanntett gla-sert ytterhud under samtidig bibehold av sin kuleform. Det indre av de brente leire-deler er fylt av en finsporet struktur av lukkede celler som har gode isolasjons-egenskaper. When the granulated clay is fired, the grains are coated with a waterproof glazed outer skin while simultaneously maintaining their spherical shape. The interior of the burnt clay parts is filled with a fine-grained structure of closed cells that have good insulation properties.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7310358A SE374710B (en) | 1973-07-26 | 1973-07-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
NO742504L NO742504L (en) | 1975-02-24 |
NO136529B true NO136529B (en) | 1977-06-13 |
NO136529C NO136529C (en) | 1977-09-21 |
Family
ID=20318126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO742504A NO136529C (en) | 1973-07-26 | 1974-07-09 | DEVICE FOR} CLOSE A WORKPLACE WHICH IS LOCATED NEAR A WATER OR SIMILAR |
Country Status (15)
Country | Link |
---|---|
US (1) | US3926002A (en) |
JP (1) | JPS5071096A (en) |
BE (1) | BE817840A (en) |
BR (1) | BR7406034D0 (en) |
CA (1) | CA1008259A (en) |
DE (1) | DE2434469A1 (en) |
DK (1) | DK400674A (en) |
ES (1) | ES428613A1 (en) |
FI (1) | FI225374A (en) |
FR (1) | FR2238809A1 (en) |
GB (1) | GB1477503A (en) |
IT (1) | IT1016940B (en) |
NO (1) | NO136529C (en) |
PL (1) | PL93419B1 (en) |
SE (1) | SE374710B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2299461A1 (en) * | 1975-01-31 | 1976-08-27 | Marseille Grands Travaux | Removable dam for reservoir or dock - consisting of water filled caissons which can be pumped out to float away |
US4341174A (en) * | 1980-04-22 | 1982-07-27 | The United States Of America As Represented By The Secretary Of The Navy | Bow dock |
JPS61193987A (en) * | 1985-02-21 | 1986-08-28 | Taisei Corp | Structure of floating gate in marine dock, etc. |
FR2990965B1 (en) * | 2012-05-22 | 2015-04-24 | Hydroplus | AUTOMATIC VALVE ADJUSTABLE. |
CN104260851A (en) * | 2014-09-12 | 2015-01-07 | 江苏扬子鑫福造船有限公司 | Hanging-from type combined dock gate |
CN107830171B (en) * | 2017-11-09 | 2024-05-14 | 江苏新扬子造船有限公司 | Multistage dock gate sealing structure and sealing method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3133420A (en) * | 1960-04-06 | 1964-05-19 | Arden L Burnett | Method of dry-docking a ship and dry dock therefor |
US3527058A (en) * | 1968-10-08 | 1970-09-08 | Mitsui Shipbuilding Eng | Device for extending a drydock |
US3756032A (en) * | 1971-03-10 | 1973-09-04 | Riva Calzoni Spa | Sluicegate structure |
-
1973
- 1973-07-26 SE SE7310358A patent/SE374710B/xx unknown
-
1974
- 1974-07-09 NO NO742504A patent/NO136529C/en unknown
- 1974-07-15 GB GB3119774A patent/GB1477503A/en not_active Expired
- 1974-07-18 DE DE2434469A patent/DE2434469A1/en not_active Withdrawn
- 1974-07-19 BE BE146721A patent/BE817840A/en unknown
- 1974-07-22 IT IT52212/74A patent/IT1016940B/en active
- 1974-07-23 BR BR6034/74A patent/BR7406034D0/en unknown
- 1974-07-23 US US490942A patent/US3926002A/en not_active Expired - Lifetime
- 1974-07-24 FR FR7425652A patent/FR2238809A1/fr not_active Withdrawn
- 1974-07-24 CA CA205,565A patent/CA1008259A/en not_active Expired
- 1974-07-24 ES ES428613A patent/ES428613A1/en not_active Expired
- 1974-07-24 PL PL1974172978A patent/PL93419B1/pl unknown
- 1974-07-25 FI FI2253/74A patent/FI225374A/fi unknown
- 1974-07-25 DK DK400674A patent/DK400674A/da not_active Application Discontinuation
- 1974-07-25 JP JP49084684A patent/JPS5071096A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2238809A1 (en) | 1975-02-21 |
IT1016940B (en) | 1977-06-20 |
DK400674A (en) | 1975-03-24 |
JPS5071096A (en) | 1975-06-12 |
ES428613A1 (en) | 1976-08-16 |
US3926002A (en) | 1975-12-16 |
FI225374A (en) | 1975-01-27 |
NO136529C (en) | 1977-09-21 |
CA1008259A (en) | 1977-04-12 |
GB1477503A (en) | 1977-06-22 |
PL93419B1 (en) | 1977-05-30 |
BR7406034D0 (en) | 1975-05-13 |
SE374710B (en) | 1975-03-17 |
BE817840A (en) | 1974-11-18 |
DE2434469A1 (en) | 1975-02-06 |
SE7310358L (en) | 1975-01-27 |
NO742504L (en) | 1975-02-24 |
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