NO761627L - - Google Patents

Info

Publication number
NO761627L
NO761627L NO761627A NO761627A NO761627L NO 761627 L NO761627 L NO 761627L NO 761627 A NO761627 A NO 761627A NO 761627 A NO761627 A NO 761627A NO 761627 L NO761627 L NO 761627L
Authority
NO
Norway
Prior art keywords
wall
floor
tank
annular
load
Prior art date
Application number
NO761627A
Other languages
Norwegian (no)
Inventor
N A Hendriks
Original Assignee
Nederhorst Bouwmij
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nederhorst Bouwmij filed Critical Nederhorst Bouwmij
Publication of NO761627L publication Critical patent/NO761627L/no

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/22—Safety features
    • B65D90/24—Spillage-retaining means, e.g. recovery ponds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02—Containers for fluids or gases; Supports therefor
    • E04H7/18—Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
    • E04H7/20—Prestressed constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/022—Land-based bulk storage containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/052—Size large (>1000 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0607—Coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0678—Concrete
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0695—Special properties of materials for vessel walls pre-constrained
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • F17C2260/036—Avoiding leaks

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

Sikkerhetsvegg for lagringstank.Safety wall for storage tank.

Foreliggende oppfinnelse angår en sikkerhetsvegg for lagringstank som inneholder væsker som er farlige for omgivelsene, slik som flytende naturgass, akrylnitril, ammoniakk, etylen, propylen, blåsyre og andre lignende væsker. Slike væsker er en fare av flere grunner. Det kan skje uhell som medfører brann, eksplosjon, lekkasje og materialsammenbrudd, f.eks. brist i veggen i lagringstanken. Dessuten kan tanken bli utsatt for sabotasje, Bruk av en sikkerhetsvegg tar sikte på å hindre alvorlige følger av slike hendelser, f.eks. spredning av giftige stoffer i atmosfæren eller i grunnvannet, spredning av brennbare stoffer eller strålingsvarme mot omgivelsene. The present invention relates to a safety wall for a storage tank containing liquids that are dangerous for the environment, such as liquefied natural gas, acrylonitrile, ammonia, ethylene, propylene, hydrocyanic acid and other similar liquids. Such liquids are a danger for several reasons. Accidents can occur that cause fire, explosion, leakage and material breakdown, e.g. crack in the wall of the storage tank. In addition, the tank may be exposed to sabotage. Use of a security wall aims to prevent serious consequences of such incidents, e.g. spread of toxic substances in the atmosphere or in the groundwater, spread of flammable substances or radiant heat towards the surroundings.

For at en sikkerhetsvegg skal være effektiv må den tilfredsstille en rekke krav. SjOkerhetsveggen må være motstandsdyktig mot væske-trykket når lagringstanken bryter sammen, mot den dynamiske belastning ved et uhell, mot materialspenninger som skyldes ekstremt lave temperaturer i tankinnholdet, mot påkjenninger som skyldes naturlige årsaker, slik som storm, solstråler og flom. Andre krav ligger i nødvendigheten av at sikkerhetsveggen må tette mot lekkasjer fra det rom den omgir, og ikke krever vedlikehold. Videre må det omønskelig være mulig å bygge en sikkerhetsvegg mens lagringstanken er i bruk. For a security wall to be effective, it must satisfy a number of requirements. The shock wall must be resistant to the liquid pressure when the storage tank collapses, to the dynamic load in the event of an accident, to material stresses due to extremely low temperatures in the tank contents, to stresses due to natural causes, such as storms, sunlight and floods. Other requirements lie in the necessity for the security wall to seal against leaks from the room it surrounds, and not require maintenance. Furthermore, it must not be desirable to build a safety wall while the storage tank is in use.

For å fylle disse krav er det velkjent å utforme sikkerhetsveggen som en sylindrisk, i omkrets lukket og forspent betongvegg som omgir tanken med relativt lite mellomrom og ligger fritt an mot In order to meet these requirements, it is well known to design the safety wall as a cylindrical, circumferentially closed and prestressed concrete wall that surrounds the tank with relatively small spaces and rests freely against

et fundament.a foundation.

For å oppnå maksimal sikkerhet med gitte dimensjoner, er sikkerhetsveggen i henhold til den foreliggende oppfinnelse konstruert som en vegg som er forspent rundt omkretsen ved hjelp av strekkbelastede kabler som ikke er festet til betongen. Kablene er fortrinnsvis omgitt av en fleksibel strømpe som inneholder fett, f.eks. et plastrør. Kablene kan gis stor forspenning, og endene overlapper hverandre. In order to achieve maximum safety with given dimensions, the safety wall according to the present invention is constructed as a wall that is prestressed around the perimeter by means of tension-loaded cables that are not attached to the concrete. The cables are preferably surrounded by a flexible stocking containing grease, e.g. a plastic tube. The cables can be given a large bias, and the ends overlap each other.

En særlig fordel som oppnås ved denne forspenning av veggen liggerA particular advantage that is achieved by this prestressing of the wall lies

i elastisiteten av veggen som helhet, og i dens evne til å restitueres etter en brist som følge av et uhell. in the elasticity of the wall as a whole, and in its ability to recover after a breach as a result of an accident.

Når veggen i en lagringstank brister hvilket den nedre ende av veggen er mest utsatt for, frigis meget store dynamiske krefter når væsken strømmer ut av en fylt tank, idet innholdet kan være mange tusen kubikkmeter og høyden kan være flére titall meter. When the wall of a storage tank bursts, to which the lower end of the wall is most exposed, very large dynamic forces are released when the liquid flows out of a filled tank, as the contents can be many thousands of cubic meters and the height can be several tens of meters.

Den lokale utstrømning av væske forårsaker en impuls i væske-mengden som nesten øyeblikkelig også forårsaker brudd i tankveggen diametralt motsatt det opprinnelige brudd. The local outflow of liquid causes an impulse in the amount of liquid which almost immediately also causes a break in the tank wall diametrically opposite to the original break.

Væsken utsetter da de diametralt motsatte soner av sikkerhetsveggen for slike krefter at veggen midlertidig forandrer form fra sirkulær til elliptisk. Kreftene for elastisk å oppta en slik påkjenning er øket ved anvendelsen av de strekkbelastede kabler som ikke er festet til betongen. The liquid then exposes the diametrically opposite zones of the safety wall to such forces that the wall temporarily changes shape from circular to elliptical. The forces to elastically absorb such stress are increased by the use of the tension-loaded cables that are not attached to the concrete.

Hvis selve sikkerhetsveggen brister ved en slik hendelse, eller ved sabotasje eller annet, f.eks. en eksplosjon, vil kablene, som ikke er festet til betongen, etter at sikkerhetsveggen brister skli i forhold til betongen, uten å bli utsatt for for høye spenninger, og dette medfører at bristen i veggen lukkes etter at de krefter som virker under uhellet har opphørt. Strekkpåkjente kabler som er festet til betongen ville under disse forhold bli utsatt for lokale belastninger over flytegrense eller bruddgrense, og ville ikke være i stand til.å lukke sprekkene. If the security wall itself breaks in such an event, or in the case of sabotage or otherwise, e.g. an explosion, the cables, which are not attached to the concrete, will slide in relation to the concrete after the safety wall ruptures, without being exposed to excessively high stresses, and this means that the crack in the wall is closed after the forces acting during the accident have ceased . Under these conditions, tension-stressed cables attached to the concrete would be exposed to local loads above the yield point or breaking point, and would not be able to close the cracks.

Ved bygging av en slik sikkerhetsvegg rundt en fylt tank blir detWhen building such a safety wall around a filled tank, it becomes

i henhold til oppfinnelsen lagt et fundament for et ringformet bærende gulv som er uavhengig av den bærende bunn i tanken, og sikkerhetsveggen bygges på dette ringformede gulv. Mellomrommet mellom det ringformede gulv og dén bærende bunn i tanken sammenbindes according to the invention, a foundation is laid for an annular bearing floor which is independent of the bearing bottom of the tank, and the safety wall is built on this annular floor. The space between the ring-shaped floor and the load-bearing bottom of the tank is connected

av et ringformet gulv som legges med bevegelsesfrihet i forhold til gulvet for sikkerhetsveggen og bunnen i tanken, slik at når tanken fylles og tappes kan den vertikale forskyvning i forhold til sikkerhetsveggen foregå uten vanskeligheter, og veggen kan fritt deformeres elastisk hvis et uhell inntreffer. of a ring-shaped floor that is laid with freedom of movement in relation to the floor for the safety wall and the bottom of the tank, so that when the tank is filled and drained, the vertical displacement in relation to the safety wall can take place without difficulty, and the wall can be freely deformed elastically if an accident occurs.

Under alle de mulige forhold som er nevnt, må det sikres tetning mellom sikkerhetsveggen og gulvet, eller det ringformede bærende gulv og også- tetning for det ringformede gulv mellom det bærende gulv og tankbunnen, i forhold til det bærende gulv. Under all the possible conditions mentioned, a seal must be ensured between the safety wall and the floor, or the ring-shaped load-bearing floor and also sealing for the ring-shaped floor between the load-bearing floor and the tank bottom, in relation to the load-bearing floor.

Tetning kan forbedres ved hjelp av en indre eller ytre ring formet som en.forhøyning på det ringformede gulv eller det ringformede bærende gulv, hvilken ring også utgjør en sentreringsring. Ringen er konsentrisk med sikkerhetsveggen og ligger i en viss avstand fra veggen for å muliggjøre relativ bevegelse. Sealing can be improved by means of an inner or outer ring shaped as an elevation on the annular floor or the annular bearing floor, which ring also constitutes a centering ring. The ring is concentric with the safety wall and is at a certain distance from the wall to allow relative movement.

I en sikkerhetsvegg i .henhold til oppfinnelsen er anordnet et elastisk deformerbart, tettende materiale mellom den nedre ende av sikkerhetsveggen og den tilstøtende flate på det bærende gulv, In a safety wall according to the invention, an elastically deformable, sealing material is arranged between the lower end of the safety wall and the adjacent surface of the load-bearing floor,

det ringformede bærende gulv, eller ringen som utgjør en forhøyning på dette. Også det mellomliggende ringformede gulv, hvis det finnes, avtettes i forhold til de tilstøtende deler ved hjelp av et elastisk tettende materiale. Et foretrukket materiale for tetting er et cellemateriale. Materialet for tetting må velges ut i fra de kjemiske egenskaper til den væske tanken inneholder. Tetningsmaterialet tillater de relativbevegelser som kan forekomme på grunn av et uhell, krympning og temperaturpåvirkning, samt variasjoner i vekten av tanken. the ring-shaped supporting floor, or the ring that forms an elevation on this. The intermediate ring-shaped floor, if present, is also sealed in relation to the adjacent parts by means of an elastic sealing material. A preferred material for sealing is a cellular material. The material for sealing must be selected based on the chemical properties of the liquid the tank contains. The sealing material allows for the relative movements that may occur due to an accident, shrinkage and temperature effects, as well as variations in the weight of the tank.

Et ytterligere trekk ved oppfinnelsen er at tetningene suppleres med plateformede ringer som er gjort fleksible ved hjelp av folder, hvilke ringer i seg selv kan være kombinert med elastisk tetnings-materiale. A further feature of the invention is that the seals are supplemented with plate-shaped rings which are made flexible by means of folds, which rings themselves can be combined with elastic sealing material.

Oppfinnelsen skal.i det følgende beskrives med henvisning til de vedføyde tegninger, der det vises eksempler på utførelse av oppfinnelsen. Fig. 1 viser i vertikalsnitt en tank (stiplede linjer) omgitt av en sikkerhetsvegg, med tanken og veggen stående på samme gulv. In the following, the invention shall be described with reference to the attached drawings, where examples of implementation of the invention are shown. Fig. 1 shows a vertical section of a tank (dotted lines) surrounded by a safety wall, with the tank and the wall standing on the same floor.

Fig. 2 viser i snitt et forstørret utsnitt av fig. 1.Fig. 2 shows in section an enlarged section of fig. 1.

Fig. 3 viser et tilsvarende utsnitt som fig. 2 av en annen utførelsesform. Fig. 3 shows a corresponding section as fig. 2 of another embodiment.

Fig. 4 viser et utsnitt av en ytterligere utførelsesform.Fig. 4 shows a section of a further embodiment.

Fig. 5 og 6 viser detaljer ved ytterligere utførelsesformer.Fig. 5 and 6 show details of further embodiments.

Fig. 1 og 2 viser en tank 1, en sikkerhetsvegg 2, den bærende bunn 3 i tanken med en ringformet utvidelse 4 for understøttelse av veggen 2. Et eventuelt fundament for bunnen 3 eller den ringformede del 4 er ikke vist. Fig. 1 and 2 show a tank 1, a safety wall 2, the supporting bottom 3 in the tank with an annular extension 4 for supporting the wall 2. A possible foundation for the bottom 3 or the annular part 4 is not shown.

Veggen 2 er forspent ved hjelp av strekkbelastede kabler 5 i plast-rør, hvilke rør forøvrig er fylt med et spesielt fett. The wall 2 is prestressed by means of tension-loaded cables 5 in plastic pipes, which pipes are otherwise filled with a special grease.

På gulvdelen 4 er dannet en kraveformet ring 6. Veggen 2 hvilerA collar-shaped ring 6 is formed on the floor part 4. The wall 2 rests

på et ringformet lag 7 av cellegummi med en spesiell sammensetning, og på begge sider av laget 7 er anordnet ringformede lag 8 og 9 av ekspandert bindemiddel eller polystyren. Mellom veggen 2 og den kraveiformede ring 6 er innpresset en tetning 10 av cellegummi dekket av en ring 11. Fig. 4 viser sikkerhetsveggen 12 som hviler på et ringformet bærende gulv 14 som hviler på et fundament av peler 13, idet det ringformede gulv har en krave 15 for sentrering og tetning. Tetningen for veggen er den samme som vist i fig. 2. Mellom den bærende bunn 16 i tanken, som hviler på et fundament med peler 17, og det ringformede bærende gulv 14 er anordnet et ringformet gulv 18 som hviler på gulvet 14 og bunnen 16, og langs kantene er tettet ved hjelp av elastiske ringer 19 - 22 av cellegummi, av hvilke ringene 19 og 22 ligger i utsparinger i det ringformede gulv 18. Fig. 5 viser en tetning som omfatter en metallring 23 med L-formet tverrsnitt og folder 24 for å øke elastisiteten. Tettende materiale on an annular layer 7 of cellular rubber with a special composition, and on both sides of the layer 7 are arranged annular layers 8 and 9 of expanded binder or polystyrene. Between the wall 2 and the collar-shaped ring 6, a seal 10 of cellular rubber covered by a ring 11 is pressed in. Fig. 4 shows the safety wall 12 which rests on a ring-shaped load-bearing floor 14 which rests on a foundation of piles 13, the ring-shaped floor having a collar 15 for centering and sealing. The seal for the wall is the same as shown in fig. 2. Between the load-bearing bottom 16 of the tank, which rests on a foundation with piles 17, and the annular bearing floor 14, an annular floor 18 is arranged, which rests on the floor 14 and the bottom 16, and is sealed along the edges by means of elastic rings 19 - 22 of cellular rubber, of which rings 19 and 22 lie in recesses in the annular floor 18. Fig. 5 shows a seal comprising a metal ring 23 with an L-shaped cross-section and folds 24 to increase elasticity. Sealing material

er satt inn mellom ringen 23 og henhv. veggen og gulvet.is inserted between the ring 23 and the wall and the floor.

Fig. 6 viser en tetning 25 av platemetall, med en fold 26, innstøpt i det øverste lag av betonggulvet. Fig. 6 shows a seal 25 of sheet metal, with a fold 26, embedded in the top layer of the concrete floor.

I utførelsen vist i fig. 3 ei anvendt en isolerende foring 27 på tanken, samt et dekklag 28 på det ringformede gulv. For tetning er anvendt overlappende lag 29, 30 og 31 av et fleksibelt, syntetisk materiale. Laget 31 er foldet i området 32 mellom sikkerhetsveggen og den sentrerende ring, slik at relativbevegelse mellom sikkerhetsveggen og den sentrerende ring er mulig. Istedet for syntetisk materiale kan lagene 29 - 31 også være av metall. In the embodiment shown in fig. 3 an insulating lining 27 is used on the tank, as well as a cover layer 28 on the ring-shaped floor. For sealing, overlapping layers 29, 30 and 31 of a flexible, synthetic material are used. The layer 31 is folded in the area 32 between the safety wall and the centering ring, so that relative movement between the safety wall and the centering ring is possible. Instead of synthetic material, the layers 29 - 31 can also be made of metal.

Claims (7)

1. Sikkerhetsvegg for lagringstank som inneholder væsker som er farlige for omgivelsene, slik som flytende naturgass, akrylnitril, ammoniakk, etylen, propylen, propan og blåsyreholdige oppløsninger, hvilken vegg ;er dannet av en sylindrisk, rundtløpende og forspent betongvegg som omgir tanken med relativt lite mellomrom og som ligger fritt på et horisontalt bærende gulv, karakterisert ved at veggen er forspent rundt omkretsen ved hjelp av strekkpåkjente kabler som ikke er festet til betongen.1. Safety wall for a storage tank containing liquids that are hazardous to the environment, such as liquefied natural gas, acrylonitrile, ammonia, ethylene, propylene, propane and solutions containing hydrocyanic acid, which wall is formed by a cylindrical, circumferential and prestressed concrete wall that surrounds the tank with relatively small space and which lies freely on a horizontally load-bearing floor, characterized by the fact that the wall is pre-tensioned around the perimeter by means of tension-stressed cables which are not attached to the concrete. 2. Sikkerhetsvegg som angitt i krav 1, karakterisert ved at kablene er omgitt av en fleksibel strømpe som inneholder fett.2. Security wall as stated in claim 1, characterized in that the cables are surrounded by a flexible stocking containing grease. 3. Sikkerhetsvegg som angitt i krav 1 eller 2, karakterisert ved at hver kabeldel bare strekker seg langs en viss bue av sikkerhetsveggen, f.eks. omtrent over en tredjedel av omkretsen, og at kabeldelene overlapper hverandre.3. Security wall as specified in claim 1 or 2, characterized in that each cable part only extends along a certain arc of the security wall, e.g. approximately over a third of the circumference, and that the cable sections overlap each other. 4. Sikkerhetsvegg som angitt i krav 1-3, karakterisert ved at den hviler på et ringformet bærende gulv uavhengig av den bærende bunn i tanken, idet mellomrommet mellom det ringformede bærende gulv og bunnen i tanken er sammen-bundet av et ringformet gulv som er lagt med en viss grad av bevegelsesfrihet på det bærende gulv og tankbunnen.4. Security wall as stated in requirements 1-3, characterized in that it rests on an annular supporting floor independent of the supporting bottom of the tank, the space between the annular supporting floor and the bottom of the tank being connected by an annular floor which is laid with a certain degree of freedom of movement on the supporting floor and the tank bottom. 5. Sikkerhetsvegg som angitt i krav 1- 4, karakterisert ved at en sentreringsring dannet som en forhøyning på det bærende gulv eller det ringformede bærende gulv er anordnét konsentrisk.med sikkerhetsveggen, med et mellomrom som gir veggen en viss grad av bevegelsesfrihet.5. Safety wall as specified in claims 1-4, characterized in that a centering ring formed as an elevation on the load-bearing floor or the ring-shaped load-bearing floor is arranged concentrically with the safety wall, with a space that gives the wall a certain degree of freedom of movement. 6. Sikkerhetsvegg som angitt i krav 1- 5, karakterisert ved at et elastisk deformerbart tettende materiale er anordnet mellom den nedre ende av sikkerhetsveggen og 'den tilstøtende flate av det bærende gulv eller det ringformede bærende gulv eller en forhø yning på et av disse.6. Safety wall as stated in claims 1-5, characterized in that an elastically deformable sealing material is arranged between the lower end of the safety wall and the adjacent surface of the load-bearing floor or the annular load-bearing floor or an elevation on one of these. 7. Sikkerhetsvegg som angitt i' krav 4 og 6, karakterisert ved at elastisk deformerbart tettende materiale er anordnet mellom det ringformede gulv og det ringformede bærende gulv.7. Safety wall as specified in claims 4 and 6, characterized in that elastically deformable sealing material is arranged between the annular floor and the annular load-bearing floor.
NO761627A 1975-05-13 1976-05-12 NO761627L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7505591,A NL169624C (en) 1975-05-13 1975-05-13 SAFETY WALL FOR STORAGE OF ENVIRONMENTALLY HAZARDOUS LIQUIDS.

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NO761627L true NO761627L (en) 1976-11-16

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AU (1) AU505822B2 (en)
BE (1) BE835541A (en)
DE (1) DE2545528C2 (en)
ES (1) ES447904A1 (en)
FI (1) FI761307A (en)
FR (1) FR2311159A1 (en)
GB (1) GB1497175A (en)
NL (1) NL169624C (en)
NO (1) NO761627L (en)
PT (1) PT65082B (en)
SE (1) SE7605241L (en)

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NO148611C (en) * 1980-06-18 1983-11-09 Moss Rosenberg Verft As FOUNDATION FOR A OR MORE SKIRT STORED BULLET TANKS AND PROCEDURES IN ITS MANUFACTURING
US5893479A (en) * 1997-07-17 1999-04-13 Berberat; Henry Storage tank vault
RU2455439C1 (en) * 2010-11-08 2012-07-10 Государственное образовательное учреждение высшего профессионального образования Самарский государственный технический университет Vertical steel reservoir
RU2507359C2 (en) * 2011-11-01 2014-02-20 Общество с ограниченной ответственностью "ГЛОБАЛТЭНКСИНЖИНИРИНГ" Reservoir with protective wall
CN113280312B (en) * 2021-05-27 2022-09-09 江苏京煦光电科技有限公司 Intelligent LED lamp post of modularization installation

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FR1010402A (en) * 1948-08-11 1952-06-11 Tangerois D Expansion Ind Et C Improvements made to closed section capacities, in particular to large capacity tanks built in reinforced concrete
DE1185362B (en) * 1963-09-19 1965-01-14 Beteiligungs & Patentverw Gmbh Container for high internal pressure, especially pressure vessel of a nuclear reactor
US3824751A (en) * 1972-06-23 1974-07-23 Preload Technology Precast concrete wall structure for waste treatment tanks
DE2262099C2 (en) * 1972-12-19 1974-09-19 Otto Dipl.-Ing. 7000 Stuttgart Rupf-Bolz Safety device on liquid containers

Also Published As

Publication number Publication date
PT65082B (en) 1977-09-14
NL7505591A (en) 1976-11-16
DE2545528A1 (en) 1976-11-25
BE835541A (en) 1976-05-13
GB1497175A (en) 1978-01-05
DE2545528C2 (en) 1982-06-09
AU505822B2 (en) 1979-12-06
FR2311159A1 (en) 1976-12-10
PT65082A (en) 1976-06-01
SE7605241L (en) 1976-11-14
ES447904A1 (en) 1977-06-01
AU1382376A (en) 1977-11-17
NL169624B (en) 1982-03-01
NL169624C (en) 1982-08-02
FI761307A (en) 1976-11-14

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