NO156660B - HEATING INSULATION OF DRAINED DRAINAGE PIPES SUPPLIED. - Google Patents
HEATING INSULATION OF DRAINED DRAINAGE PIPES SUPPLIED. Download PDFInfo
- Publication number
- NO156660B NO156660B NO854611A NO854611A NO156660B NO 156660 B NO156660 B NO 156660B NO 854611 A NO854611 A NO 854611A NO 854611 A NO854611 A NO 854611A NO 156660 B NO156660 B NO 156660B
- Authority
- NO
- Norway
- Prior art keywords
- drain
- cones
- air
- heat insulation
- drainage pipes
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 15
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 title 1
- 239000007990 PIPES buffer Substances 0.000 title 1
- 238000010438 heat treatment Methods 0.000 title 1
- 239000002352 surface water Substances 0.000 claims abstract description 5
- 239000003570 air Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/125—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the lining of the shaft
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
- E03F5/0405—Gullies for use in roads or pavements with an odour seal
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Thermal Insulation (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
Oppfinnelsen vedrører en varmeisolasjon ved overflatevannledninger med sluk (10, 11) forlagt i jorden, og som består av et luftskikt (19) som i sluket er avgrenset mellom to på innbyrdes aksial avstand anordnede, elastisk ettergivende konuser (16, 17). Disse er opphengt i sin spiss mens deres basiskant ligger tettende an mot slukets vegg for å danne en luftlås i sluket.The invention relates to heat insulation for surface water pipes with drains (10, 11) laid in the ground, and which consists of an air layer (19) which is delimited in the drain between two elastically yielding cones (16, 17) arranged at an axial distance from each other. These are suspended at their tip while their base edge rests tightly against the wall of the drain to form an air lock in the drain.
Description
Foreliggende oppfinnelse vedrører en varmeisolasjon ved overflatevannledninger forlagt i jorden og med sluk, omfattende en i sluket anordnet luftlås. The present invention relates to heat insulation for surface water pipes laid in the ground and with a drain, comprising an air lock arranged in the drain.
Det er tidligere kjent å anbringe luftlåser i nedgravde overflatenvannledninger for å hindre at kold luft fra omgivelsene strømmer utenfra og ned i ledningssystemet gjennom slukene uten at vannet hindres i å renne ned, samtidig som utstrømning av illeluktende gasser fra ledningssystemet forhindres. Ved en kjent utførelse av en luftlås for dette formål, består luftlåsen av en konus av elastisk ettergivende materiale, f.eks. gummi, som er opphengt i sin spiss og med sin basiskant ligger tettende an mot slukveggen. It is previously known to place airlocks in buried surface water pipes to prevent cold air from the surroundings from flowing from outside into the pipe system through the drains without the water being prevented from flowing down, while at the same time preventing the outflow of foul-smelling gases from the pipe system. In a known embodiment of an air lock for this purpose, the air lock consists of a cone of elastically yielding material, e.g. rubber, which is suspended at its tip and with its base edge rests tightly against the drain wall.
Luftlåsen skal forhindre at ledningssystemet, inklusive forekommende sluk, på vinterstid kjøles ned i en slik grad at det dannes ispropper, med de ulemper dette medfører. Det har midlertid vist seg at bare en utestengning av den kolde omgivelsesluft fra ledningssystemet ikke er tilstrekkelig til å forhindre isdannelse i områder hvor det forekommer at vinteren er lang og kold. Her behøves det mer effektive anordninger som beskyttelse mot isdannelse, og ved oppfinnelsen gis det anvisning på en enkel og effektiv anordning for dette The airlock must prevent the piping system, including existing drains, from cooling down in winter to such an extent that ice blocks form, with the disadvantages this entails. In the meantime, it has been shown that simply excluding the cold ambient air from the piping system is not sufficient to prevent ice formation in areas where the winter is long and cold. Here, more effective devices are needed as protection against ice formation, and the invention provides instructions for a simple and effective device for this
formål. purpose.
Ifølge oppfinnelsen er det tilveiebragt en varmeisolasjon med de karakteristiske trekk som fremgår av krav 1, og en utførelse av denne skal beskrives nærmere i det følgende under henvisning til tegningene, hvor According to the invention, a heat insulation is provided with the characteristic features that appear in claim 1, and an embodiment of this shall be described in more detail below with reference to the drawings, where
fig. 1 er et vertikalsnitt av den øvre del av et sluk med varmeisolasjonen ifølge oppfinnelsen, fig. 1 is a vertical section of the upper part of a drain with the heat insulation according to the invention,
fig. 2 er et skjematisk riss av sluket med varmeisolasjonen, og fig. 2 is a schematic drawing of the drain with the heat insulation, and
fig. 3 er et diagram som anskuliggjør den effekt som oppnås ved hjelp av varmeisolasjonen ifølge oppfinnelsen. fig. 3 is a diagram illustrating the effect achieved by means of the thermal insulation according to the invention.
På fig. 1 er er vist den øvre del av et sluk 10 som skal inngå i et overflatevannledningssystem forlagt i jorden. Sluket er anordnet teleskopisk med et inn-stikningsrør 11 som er forbundet med et slukdeksel 12, mens en tetning 13 på kjent måte er anordnet mellom sluket og innstikningsrøret 11. Slukdekselet 12 har et hetteformet gitter 14 hvori det er opphengt en stang eller et rør 15, som henger et stykke ned i innstik-ningsrøret 11. I den nedre ende av stangen eller røret 15 er det opphengt to konuser 16 og 17 av elastisk ettergivende materiale, f.eks. gummi, som med sin spiss er festet til stangen eller røret ved hjelp av skrufor-bindelse eller låsemutter 18, eller på annen egnet In fig. 1 shows the upper part of a drain 10 which is to be part of a surface water conduit system laid in the ground. The drain is arranged telescopically with an insertion pipe 11 which is connected to a drain cover 12, while a seal 13 is arranged in a known manner between the drain and the insertion pipe 11. The drain cover 12 has a hood-shaped grid 14 in which a rod or a pipe 15 is suspended , which hangs a little way down in the insertion tube 11. At the lower end of the rod or tube 15, two cones 16 and 17 of elastic yielding material are suspended, e.g. rubber, which is attached with its tip to the rod or pipe by means of a screw connection or locking nut 18, or on another suitable
måte. Ved sin basiskant ligger de to konuser tettende an mot innstikningsrøret 11, og de danner således, på i og for seg tidligere kjent måte, luftlås i sluket. manner. At their base edge, the two cones rest tightly against the insertion pipe 11, and they thus form, in a previously known manner, an air lock in the drain.
Det nye og vesentlige ifølge oppfinnelsen er at to konuser er anordnet med innbyrdes avstand for mellom seg å avgrense et luftskikt 19. Dette luftskikt danner en effektiv varmeisolasjon mellom den omgivende luft og slukets indre, og spesielt effektiv blir denne varmeisolasjon hvis avstanden mellom konusene er av størrel-sesordenen minst 200 mm, ifølge det som har kunnet fastlegges ved hjelp av teoretiske overveielser. The new and essential thing according to the invention is that two cones are arranged at a distance from each other to define an air layer 19 between them. This air layer forms an effective heat insulation between the surrounding air and the inside of the drain, and this heat insulation becomes particularly effective if the distance between the cones is the order of magnitude at least 200 mm, according to what has been able to be determined using theoretical considerations.
På fig. 2 er det beskrevne sluk med varmeisolasjonen vist skjematisk, hvorved det i sluket befinner seg vann til en høyde H, mens•avstanden mellom konusene er betegnet med h. Diagrammet på fig. 3 er utregnet under den antagelse at omgivelsesluftens temperatur t er -25°C, temperaturen t av vannet i sluket er +5 C og luftens varmegjennomgangskoeffisient er 0,03 W/m<2>K. I dette diagram angir den logaritmiske vertikale akse H og den likeledes logaritmiske horison-tale akse den tid som medgår for at vannet i sluket skal fryse under de angitte betingelser, idet det er inntegnet kurver for forskjellige aksiale avstander h mellom de to konuser 16 og 17. Av diagrammet fremgår det at den mest effektive frostbeskyttelse oppnås hvis avstanden mellom konusene er av størrelsesordenen minst In fig. 2, the described drain with the heat insulation is shown schematically, whereby there is water in the drain to a height H, while • the distance between the cones is denoted by h. The diagram in fig. 3 is calculated on the assumption that the ambient air temperature t is -25°C, the temperature t of the water in the drain is +5 C and the air's heat transfer coefficient is 0.03 W/m<2>K. In this diagram, the logarithmic vertical axis H and the equally logarithmic horizontal axis indicate the time required for the water in the drain to freeze under the stated conditions, as curves are drawn for different axial distances h between the two cones 16 and 17 The diagram shows that the most effective frost protection is achieved if the distance between the cones is of the order of at least
I den viste og beskrevne utførelse er det anordnet to konuser, men ytterligere forbedring av varmeisolasjonen kan oppnås ved å anordne flere enn to konuser. Dette skjer naturligvis med tilsvarende høyere omkostninger ved varmeisoleringen, som det i mange tilfeller ikke er noen grunn til, da allerede to konuser gir tilstrekkelig effektiv beskyttelse mot tilfrysning i sluket. In the embodiment shown and described, two cones are arranged, but further improvement of the thermal insulation can be achieved by arranging more than two cones. This naturally occurs with correspondingly higher costs for the thermal insulation, for which there is no reason in many cases, as two cones already provide sufficiently effective protection against freezing in the drain.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8405781A SE445567B (en) | 1984-11-19 | 1984-11-19 | Heat insulation for underground surface water pipeline with well |
Publications (3)
Publication Number | Publication Date |
---|---|
NO854611L NO854611L (en) | 1986-05-20 |
NO156660B true NO156660B (en) | 1987-07-20 |
NO156660C NO156660C (en) | 1987-10-28 |
Family
ID=20357786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO854611A NO156660C (en) | 1984-11-19 | 1985-11-18 | HEATING INSULATION OF DRAINED DRAINAGE PIPES SUPPLIED. |
Country Status (3)
Country | Link |
---|---|
FI (1) | FI79878C (en) |
NO (1) | NO156660C (en) |
SE (1) | SE445567B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2666361B1 (en) * | 1990-08-28 | 1992-12-18 | Den Broeck Van Yann | PROCESS FOR THE REDUCTION OF A PHREATIC TABLECLOTH. |
-
1984
- 1984-11-19 SE SE8405781A patent/SE445567B/en unknown
-
1985
- 1985-11-15 FI FI854507A patent/FI79878C/en not_active IP Right Cessation
- 1985-11-18 NO NO854611A patent/NO156660C/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE8405781L (en) | 1986-05-20 |
FI79878B (en) | 1989-11-30 |
FI854507A (en) | 1986-05-20 |
NO156660C (en) | 1987-10-28 |
SE8405781D0 (en) | 1984-11-19 |
FI854507A0 (en) | 1985-11-15 |
SE445567B (en) | 1986-06-30 |
FI79878C (en) | 1990-03-12 |
NO854611L (en) | 1986-05-20 |
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