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EP0084770A1 - Dispositif d'écoulement des précipitations d'une paroi interne verticale d'un réservoir à toit flottant - Google Patents

Dispositif d'écoulement des précipitations d'une paroi interne verticale d'un réservoir à toit flottant Download PDF

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Publication number
EP0084770A1
EP0084770A1 EP83100026A EP83100026A EP0084770A1 EP 0084770 A1 EP0084770 A1 EP 0084770A1 EP 83100026 A EP83100026 A EP 83100026A EP 83100026 A EP83100026 A EP 83100026A EP 0084770 A1 EP0084770 A1 EP 0084770A1
Authority
EP
European Patent Office
Prior art keywords
water
layers
tank wall
tank
wall
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.)
Granted
Application number
EP83100026A
Other languages
German (de)
English (en)
Other versions
EP0084770B1 (fr
Inventor
Heinrich Ing.Grad. Imhof
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INGENIEURBURO IMHOF GmbH
Ingenieurbuero Imhof GmbH
Original Assignee
INGENIEURBURO IMHOF GmbH
Ingenieurbuero Imhof GmbH
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 INGENIEURBURO IMHOF GmbH, Ingenieurbuero Imhof GmbH filed Critical INGENIEURBURO IMHOF GmbH
Priority to AT83100026T priority Critical patent/ATE13652T1/de
Publication of EP0084770A1 publication Critical patent/EP0084770A1/fr
Application granted granted Critical
Publication of EP0084770B1 publication Critical patent/EP0084770B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B65D88/00—Large containers
    • B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
    • B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
    • B65D88/46—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with mechanical means acting on the seal
    • 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
    • B65D88/00—Large containers
    • B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
    • B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle

Definitions

  • the invention relates to a device for removing the rainwater from the vertical inner wall of a floating roof tank, consisting of an annular scraper element which is pressed resiliently against the tank wall above conventional annular gap seals or weather plates.
  • annular gap between vertical tank wall and floating roof required for the trouble-free vertical movement of the floating roof must be closed by an elastic sealing element that is able to compensate for operational changes in the annular gap width as well as severe out-of-roundness and bulges in the tank wall and the escape of product vapors or penetration to prevent rainwater as much as possible.
  • annular gap seals on floating roof tanks are usually divided into a primary seal and a secondary seal, with the primary seal facing the stored product being intended to retain the majority of the product vapors and the secondary seal directed against the atmosphere, in addition to improving the overall sealing effect, also to prevent the ingress of rainwater.
  • the invention was therefore based on the object of developing a water-stripping element which is able to interrupt the water film running down a vertical tank wall, to pull the water towards itself and to discharge it at a suitable point.
  • This element should be able to be attached above known secondary seals or weather plates.
  • the water-wiping element should be sufficiently elastic and vapor-tight from the product side, so that in addition to the safe removal of the water film, it can also perform the function of a sealing body to limit steam emissions.
  • an annular wiping element pressed against the tank wall above conventional annular gap seals or weather plates consists of a layered pack of elastic materials which is alternately constructed in the vertical direction from water-absorbing and permeable layers and from water-impermeable layers, wherein the upper and lower cover layers consist of water-impermeable layers and the entire package forms a rhomboid in cross-section, so that when pressed against the tank wall, the individual layers are directed at an acute angle against the tank wall and each individual layer gets full contact with the end face of the tank wall, and that the stripper pack, which is assembled from individual pieces to form a closed ring, is held in short receiving profile pieces and by a large number of individually acting spring elements against the tank wall is pressed, the vertical webs of the receiving profile pieces are perforated so that the water absorbed can drain off here.
  • the water-permeable layers consist of materials with a felt, fleece-like or fibrous or otherwise absorbent and water-permeable structure. Suitable for this are, for example, needle felt or needle fleece made of corrosion, weather and putresistant plastics.
  • the water-impermeable layers are advantageously produced by applying a rubber coating or an elastic plastic mass between the water-permeable layers. This gives the entire package the required strength and elasticity.
  • the top and bottom of the pack are also formed from water-impermeable layers, the bottom being given a particularly thick rubber coating or coating, so that the entire pack is vapor-tight from below.
  • the wiper pack which is made up of individual pieces to form a closed ring, is advantageously held in short receiving profile pieces and pressed against the tank wall by a large number of individually acting spring elements.
  • the receiving profile pieces are perforated on their vertical webs, so that the water absorbed can drain off here.
  • the water film running down the inner wall of the tank is first cut up by the wiper pack. Part of the water is drained directly from the wall via the top cover layer of the pack. The remaining amount of water penetrates into the water-permeable layers of the pack, is forcibly guided away from the tank wall by the water-impermeable layers and emerges from the perforation of the receiving profile pieces.
  • the weather plates or the apron of the secondary seal which are located below the wiper pack, conduct the water to the floating roof.
  • the number of layers and the total thickness of the stripper pack are to be dimensioned such that even in the case of extreme rainfall, the lowest, water-permeable layer only has to remove small amounts of water.
  • the water-permeable layer underneath cannot be moistened from above and thus retains its full water-absorbing effect.
  • Fig. 1 the operation of the wiper pack described according to the invention is shown.
  • the scraper pack generally designated by the reference number 2
  • the water-permeable layers 3 consist of plastic needle felt
  • the water-impermeable layers 4 are produced by applying a rubber-elastic plastic mass.
  • the water film 6 running down the tank wall 1 is cut up when it hits the wiper pack 2. Part of the water is already diverted from the tank wall by the top cover layer of the pack. The remainder of the water film enters into the gap between tank wall and A bstreiferpackung.
  • the water-permeable layers 3 gradually suck the remaining water film from the tank wall.
  • the water-impermeable layers 4 prevent mutual moistening of the water-absorbing layers, so that the layer underneath in each case retains its full suction effect and, on the other hand, the water absorbed in the individual layers is forcibly diverted to the rear of the wiper pack.
  • the lower cover layer 5 of the wiper pack is particularly thick and at the same time acts as a sealing element to limit product emissions.
  • Fig. 2 shows a perspective sectional view of a secondary seal on a floating roof tank with the wiper packing described according to the invention as an external contact element to the tank wall, which at the same time fulfills the function of a profile seal.
  • Comparable components are designated by the reference numerals used for FIG. 1, which, however, are provided with an index line.
  • the wiper pack 2 'sits non-positively in short, C-shaped receiving profile pieces 7, which are pressed against the tank wall by narrow spring strips 9.
  • the secondary sealing apron 10 which spans the entire annular gap 11 and is fastened together with the spring bands 9 to the outer, upper edge of the floating roof 12, is permanently connected to the lower cover layer 5 of the wiper pack 2 ′.
  • the C-shaped receiving profile pieces 7 are perforated 8 on their vertical webs, so that the water absorbed by the tank wall can escape here and is drained off above the secondary sealing apron 10 to the floating roof.
  • FIG. 3 shows the wiper pack described according to the invention in connection with conventional weather plates.
  • the water emerging at the perforation 8 "of the Z-shaped receiving profile pieces 7" is discharged via the weather plates 9 "to the floating roof 12".

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cleaning In General (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP83100026A 1982-01-25 1983-01-04 Dispositif d'écoulement des précipitations d'une paroi interne verticale d'un réservoir à toit flottant Expired EP0084770B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83100026T ATE13652T1 (de) 1982-01-25 1983-01-04 Vorrichtung zur entfernung des niederschlagswassers von der senkrechten innenwand eines schwimmdachtanks.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3202278 1982-01-25
DE19823202278 DE3202278A1 (de) 1982-01-25 1982-01-25 Vorrichtung zur entfernung des niederschlagswassers von der senkrechten innenwand eines schwimmdachtanks

Publications (2)

Publication Number Publication Date
EP0084770A1 true EP0084770A1 (fr) 1983-08-03
EP0084770B1 EP0084770B1 (fr) 1985-06-05

Family

ID=6153861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83100026A Expired EP0084770B1 (fr) 1982-01-25 1983-01-04 Dispositif d'écoulement des précipitations d'une paroi interne verticale d'un réservoir à toit flottant

Country Status (4)

Country Link
US (1) US4456144A (fr)
EP (1) EP0084770B1 (fr)
AT (1) ATE13652T1 (fr)
DE (2) DE3202278A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601990A (nl) * 1985-08-05 1987-03-02 Chicago Bridge & Iron Co Opslagreservoir.
EP1553028A3 (fr) * 2004-01-06 2005-11-02 Heinrich Imhof Moyen d'étanchéité pour l'espace annulaire entre la paroi interne d'un réservoir cylindriqe à parois verticales pour liquides, et le toit flottant
KR100794540B1 (ko) * 1999-11-16 2008-01-17 소시에떼 데 프로듀이 네슬레 소시에떼아노님 육류 에멀젼 제품

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2386637B (en) * 2002-02-07 2005-06-08 Polytank Ltd Covers for tanks
US8454101B2 (en) * 2009-06-11 2013-06-04 Getac Technology Corporation Waterproof assembly for electronic device and watertight door thereof
US11548725B2 (en) 2013-03-15 2023-01-10 Industrial & Environmental Concepts, Inc. Cover systems, tank covering methods, and pipe retention systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571817A (en) * 1947-04-09 1951-10-16 Stacey Brothers Gas Constructi Seal for fluid containers
GB1417959A (en) * 1971-12-18 1975-12-17 Greengate Ind Polymers Ltd Floating roof for a liquid storage tank
US4099643A (en) * 1977-05-20 1978-07-11 Mobil Oil Corporation Seal for floating roof tank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1921667C3 (de) * 1969-04-28 1979-10-04 Shell Internationale Research Maatschappij B.V., Den Haag (Niederlande) Randabdichtung fur Schwimmdacher von Behältern zur Lagerung von Flüssigkeiten
AT319145B (de) * 1972-12-06 1974-12-10 Voest Ag Vorrichtung zum Abdichten des zwischen der Behälterwand und dem Schwimmdach eines Großraumbehälters für Mineralöle od.dgl. vorhandenen Ringspaltes
DE2320066C3 (de) * 1973-04-19 1979-04-05 Vsesojuznyj Nautschno-Issledovatelskij Institut Po Montaschnym I Specialnym Stroitelnym Rabotam, Moskau Dichtung zum Abschluß eines Schwimmdeckels
FR2259766A1 (en) * 1974-02-04 1975-08-29 Provence Const Metalliqu Seal for liquid reservoirs with floating covers - comprises compressed annular rings inside protective cover
DE2461486A1 (de) * 1974-12-24 1976-07-08 Salzgitter Stahlbau Gmbh Schwimmdach fuer speichertanks
US4116358A (en) * 1977-05-16 1978-09-26 Aerojet-General Corporation Weather and vapor seal for storage tank
US4138032A (en) * 1977-09-26 1979-02-06 Chicago Bridge & Iron Company Full secondary seal, wiper type, for a floating roof tank
US4406377A (en) * 1980-09-02 1983-09-27 Bruening Robert A Low friction seal for a floating roof
US4397399A (en) * 1981-09-08 1983-08-09 Tank Services, Incorporated Seal for floating roofs of storage tanks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571817A (en) * 1947-04-09 1951-10-16 Stacey Brothers Gas Constructi Seal for fluid containers
GB1417959A (en) * 1971-12-18 1975-12-17 Greengate Ind Polymers Ltd Floating roof for a liquid storage tank
US4099643A (en) * 1977-05-20 1978-07-11 Mobil Oil Corporation Seal for floating roof tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601990A (nl) * 1985-08-05 1987-03-02 Chicago Bridge & Iron Co Opslagreservoir.
KR100794540B1 (ko) * 1999-11-16 2008-01-17 소시에떼 데 프로듀이 네슬레 소시에떼아노님 육류 에멀젼 제품
EP1553028A3 (fr) * 2004-01-06 2005-11-02 Heinrich Imhof Moyen d'étanchéité pour l'espace annulaire entre la paroi interne d'un réservoir cylindriqe à parois verticales pour liquides, et le toit flottant

Also Published As

Publication number Publication date
EP0084770B1 (fr) 1985-06-05
US4456144A (en) 1984-06-26
DE3360232D1 (en) 1985-07-11
DE3202278A1 (de) 1983-07-28
ATE13652T1 (de) 1985-06-15

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