EP1553028B1 - Moyen d'étanchéité pour l'espace annulaire entre la paroi interne d'un réservoir cylindriqe à parois verticales pour liquides, et le toit flottant - Google Patents

Moyen d'étanchéité pour l'espace annulaire entre la paroi interne d'un réservoir cylindriqe à parois verticales pour liquides, et le toit flottant Download PDF

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Publication number
EP1553028B1
EP1553028B1 EP20040030876 EP04030876A EP1553028B1 EP 1553028 B1 EP1553028 B1 EP 1553028B1 EP 20040030876 EP20040030876 EP 20040030876 EP 04030876 A EP04030876 A EP 04030876A EP 1553028 B1 EP1553028 B1 EP 1553028B1
Authority
EP
European Patent Office
Prior art keywords
mat
container
wall
support element
sealing
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.)
Ceased
Application number
EP20040030876
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German (de)
English (en)
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EP1553028A3 (fr
EP1553028A2 (fr
Inventor
Heinrich Imhof
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Individual
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Individual
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Publication date
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Publication of EP1553028A2 publication Critical patent/EP1553028A2/fr
Publication of EP1553028A3 publication Critical patent/EP1553028A3/fr
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Publication of EP1553028B1 publication Critical patent/EP1553028B1/fr
Ceased 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

Definitions

  • the present invention relates to a device for sealing the annular gap between a container inner wall of a vertical round container intended for a liquid and a floating cover according to the preamble of claim 1.
  • Floating roof containers have a floating cover which is carried by the liquid stored in the container. As the liquid level changes, for example when the container is filled or when the liquid is withdrawn, the floating cover rises or falls.
  • Such floating covers have a diameter which is smaller than the inner diameter of the container, so that an annular gap remains, which in turn must be sealed so that in particular rainwater does not penetrate into the interior of the container and with the liquid stored in the container is mixed.
  • a sealing profile is pressed against the container inner wall, which, in one embodiment variant, has a water-absorbent mat made of synthetic fibers.
  • a synthetic fiber mat absorbs the liquid, for example rainwater, running above the sealing profile on the vertical container inner wall and directs it towards the floating cover via a sealing apron or a suitable weather cover.
  • a device for sealing the annular gap between a container inner wall and a floating cover with a water-receptive mat of synthetic fibers, as described above, of the type mentioned, is from the EP-B1 084 770 known. According to the embodiment as shown in the FIGS. 1 and 2 This document is shown, is pressed against the container inner wall, a stack of a plurality of superimposed, obliquely down to the container interior oriented toward mat strip of synthetic fibers to the container inner wall with the end face. The water running along the inner surface of the container wall is drained inwardly from the container inner wall via the obliquely downwardly oriented mat strips.
  • the DE-A1 3503183 describes a so-called secondary seal for tank floating roofs, which is similar in function to the above-described seal.
  • a mat is provided, which applies over a larger vertical area flat against the container inner wall.
  • This mat is wrapped around a support body and has a Wasserleit Mrs, which is formed from a in the direction of the layer, ie parallel to the container inner wall, water-conducting material.
  • This water-conducting layer is a loose fiber material, which preferably has a substantially perpendicular to the Layer direction, and thus perpendicular to the container inner wall, arranged to have fiber orientation.
  • the water-conducting layer In order to absorb large amounts of water, the water-conducting layer should be designed so that it does not cause a capillary effect, but the water should flow directly and unhindered from the layer. Accordingly, a very loose fiber material, for example a velor or loop-like material, is used for the water-conducting layer. Due to the loose fiber structure of the water-conducting layer, it is to be expected that water which runs down along the container inner wall and impinges on this sealing arrangement will pass through the water-conducting layer and can also reach the container interior.
  • a very loose fiber material for example a velor or loop-like material
  • the present invention is based on the object, a device for sealing the annular gap between a container inner wall of a liquid intended for a vertical round container and a floating cover of the type mentioned in such a way that it shows a simple structure, but still very effective on the Drains the inside wall of the tank draining water, so that this water does not penetrate into the interior of the container.
  • the sealing profile should easily adapt to unevenness of the container wall, do not hook on horizontal welds of the container wall, have a high wear resistance, freeze over a large area of frost on the container wall and continue to ensure the full effectiveness of the drainage when changing the vertical orientation of the sealing device to the container wall ,
  • the mat is flexible and is clamped and held at least at its two facing away from the container inner wall edge regions by means of the support member and held that the mat, seen in a vertical section , at least in the area applied to the container inner wall area convexly curved towards the container inner wall. It has been found that such an arrangement, using the appropriate mat material, very effectively dissipates liquid running along the container inner wall.
  • the mat is held in a convex, ie bulged, curvature or curvature, clamped by a support element, so that, due to the curvature indicative of the container inner wall, it bears against the container inner wall only along a narrow area.
  • the mat is at least at its two facing away from the container inner wall edge regions clamped and held by the support member that the mat, seen in a vertical section, at least in the applied to the container inner wall area, convex or bulging to the container inner wall is curved.
  • Such a support member may be formed as a support plate, wherein the mat is then attached to two opposite edges of the support plate.
  • This support plate can even, d. H. as a plate-shaped part, be formed, so that this results in a very simple structure.
  • the support member may be bent away from the container inner wall at its edges, on which the mat is fixed; As a result, the edges are fixed in a fixed orientation on the support element in the edge region in order to be able to discharge water accordingly.
  • An elastic support body can be inserted between the mat and the support element, which supports the mat in its convex curvature, i. bulged to the inside of the container wall bulging. With such a support body, the rigidity of the mat is increased, so that it, when pressure is exerted on the container inner wall, deformed less due to the applied compressive forces.
  • the two edge regions of the mat can be fastened on the side of the support element pointing toward the container inner wall. But it is important to ensure that the sealing apron, which extends toward the floating cover, is affixed to the lower edge portion of the mat on the outside thereof facing the container inner wall.
  • the lower edge region of the mat can be fastened on the side of the support element facing the container inner wall, while the upper edge region of the mat is fastened on the opposite side of the support element, which faces away from the container inner wall;
  • the upper edge region of the mat viewed in section, is wrapped around the upper edge of the support element in a loop shape.
  • the mat can be placed around a support body and be clamped and held with the edge regions on one another on a support element.
  • the support element can be held with the mat held in the lower area by means of the pressure units.
  • the pressure units can attack approximately centrally on the support elements.
  • the mat should preferably be formed of synthetic fibers having a high absorbency structure.
  • a mat is used with a thickness between 5 and 20 mm. Particularly good results are also achieved with a mat made of a needle felt.
  • the mat should have a density greater than 0.1 g / cm 3 , on the one hand to achieve a sufficient suction and on the other hand to have a high wear resistance.
  • FIG. 1 showing a first embodiment of a device for sealing the annular gap between a container inner wall and a floating cover, shows a portion of a container wall 1 and a portion of a floating cover 2, wherein between the inside 3 of the container wall 1 and a vertically oriented end part 4 of the floating Cover 2 an annular gap 5 is left.
  • This annular gap 5 between the container wall 1 and the floating cover 2 may, depending on the position of the floating cover 2, change in width and seen around the circumference of the container have a different width.
  • This annular gap 5 is sealed by a sealing device, which is generally designated by the reference numeral 6.
  • This sealing device 6 comprises a sealing profile 7 with a strip-shaped, stable support element 8 to which a water-absorbent mat 9 is attached.
  • This mat 9 formed as a strip-shaped part extending horizontally, is clamped and fixed at its upper and lower edges to the upper and lower edges of the support element 8; as based on the front cross section in FIG. 1 to recognize is, the width of the support member 8 seen in the vertical direction, ie in the height direction of the container wall 1, narrower than the corresponding width of the mat 9.
  • the support member 8 is held by a plurality of lower spring arms 11 and a plurality of upper spring arms 12 which are distributed around the circumference of the floating cover 2.
  • the one ends of these spring arms 11, 12 are attached directly to the upper edge of the floating cover 2 and the vertical end part 4 on an inwardly angled edge 13. While the lower spring arm 11 engages with its other end to the lower edge of the support member directly, the other end of the upper spring arm 12 is bent to a loop-like portion 14 by 180 ° and secured with its end to the upper edge of the support member 8.
  • the strip-shaped support member 8 and thus the water-receptive mat 9 of synthetic fibers is uniformly pressed against the inside 3 of the container wall 1.
  • the sealing skirt 15 is fastened, which spans the annular gap 5 below the lower spring arms 11 and also on the angled edge 13 of the vertical end part 4 of the floating cover 2, below a terminal block 16, is attached.
  • the mat 9 is formed of synthetic fibers having a highly absorbent structure.
  • the material of this mat is a needle felt, with a density of the mat greater than 0.1 g / cm 3 and a thickness of the mat between 5 and 20 mm.
  • Water which runs down above the sealing profile 7 on the container inner wall 1, impinges on the narrow region 10 of the mat 9, which rests against the container inner wall 1, and is absorbed by the fiber material of the mat 9. Due to the structure of the fibers of the mat, the collected water is removed along the mat 9 away from the inner wall to the lower edge of the mat. The water then exits at the lower edge region 17 of the mat and drips onto the sealing apron 15, to then to the floating cover 2 to be derived out. In the area of the floating cover 2, the water thus discharged is then discharged accordingly.
  • the fibers of the mat ensure the removal of the liquid absorbed along the container inner wall 1 due to the large wettable surface and the capillary action resulting from the dense fibrous structure of the mat 9.
  • the sealing profile 7 is simple in its construction and can be easily installed by means of the spring arms 11, 12 on the floating cover 2.
  • FIG. 2 shows a second embodiment of a sealing profile, denoted by reference numeral 27, in a relation to the FIG. 1 enlarged sectional view.
  • the sealing profile 27, as in a second embodiment in FIG. 2 is shown is supported on a support member 8 in the form of a narrow sheet metal strip extending in the circumferential direction of the container.
  • This support element 8 has a respective upper and lower upper edge region 18 and lower edge region 19 which are angled towards the inner side of the container.
  • the mat 9 is screwed on by means of screw elements 20.
  • the width of the support member 8, ie the dimension seen in the direction of the height of the container 1 is less than the corresponding width of the mat 9, so that the mat 9, attached to the edge regions with the support member 8, directed to the container inner wall 3 curvature to form a cavity 21 between the support member 8 and the mat 9.
  • Edge regions of the mat 9 receive the two edges of the mat 9, which are fixed, a corresponding orientation to the container inner wall 3 out.
  • the middle area is in the in FIG. 2 shown position of the sealing profile 27 pressed against the inside 3 of the container wall 1, so that over a certain height of the container inner wall 3, a flat contact of the mat 9 results.
  • the sealing profile 27 is in FIG. 2 held on a spring arm 11 which is bolted to the inside of the support member or the support plate 8 with the screw 20.
  • This sealing skirt 15 is also held with the lower screw 20 on the support member 8 and the lower spring arm 11. Also in FIG. 2 it can be seen that liquid which runs along the inner side 3 of the container wall 1 above the sealing profile 27, meets and is taken up by the mat 9, and then discharged to the lower end of the mat, where the liquid then the bottom edge portion 17 exits the mat and runs on the sealing skirt 15 to the cover 2 out.
  • FIG. 3 3 is a third embodiment of a sealing profile 37, which in its basic structure with the second embodiment (FIG. FIG. 2 ) is comparable.
  • the sealing profile 37 is predetermined in its shape by a support element 8, which, seen in cross-section, is formed as a bent segment.
  • the mat 9 flat against the support element 8.
  • the holder of the mat 9 by means of the screw 20, which also in the embodiment of FIG. 2 you can see. Due to the bulbous, outwardly curved to the inside 3 of the container shape of the mat 9 (curved convex towards the container inner wall) results in only a substantially linear contact area on the inside 3 of the container wall 1.
  • the sealing profile 37 due to the bulbous curvature at changed Unroll annular gap size 5 along the inside 3 of the container wall 1 or slide off without losing the necessary contact with the inner wall 3.
  • the sealing profile 47 is held with a lower edge region on the spring arm 11 by means of screw 20, again with the sealing skirt 15 on the outside of the mat 9, the inside of the 3 Container wall 1 indicates adjacent.
  • the sealing mat 9 then extends from this lower edge region, seen in cross-section, in the form of a loop to the container inner side 3, abuts with a narrow region and then extends in an arc to the upper end of the plate-shaped support member 8.
  • the upper edge portion of the mat 9 is fixed on the opposite side of the support member 8 by means of the screw members 20, ie on the side facing the interior of the container and facing the side of the support member 8 on which the lower Edge region of the mat 9 is attached. Again, this gives a convex, outwardly arched shape of the mat 9, ie an outwardly bulging shape (seen in cross-section).
  • FIG. 5 shows a fifth embodiment of a sealing profile 57, which in its construction with the first embodiment of FIG. 1 is comparable and, as far as the holder is concerned with the spring arm 11, with the embodiment of FIG. 2 is comparable.
  • the support member 8 which may also be referred to as a support plate
  • the mat 9 is an elastic support body 22 is used, which supports the bulbous shape of the mat 9.
  • the spring arm 11 engages, in contrast to the embodiments of FIGS. 1 and 2 , in the middle of the support element or the support plate 8 and is screwed there twice.
  • the elastic support body 22 may for example be formed of an elastomeric or foamed material, wherein the elasticity of the material is chosen so that the convex outwardly bulging shape of the mat 9 is supported to ensure the bulbous shape even with corresponding Andschreib practitionern.
  • FIG. 6 6 shows a sixth embodiment of a secondary sealing profile 67, in a representation in which part of the primary sealing device 23, 15, 24 (reference 68) and a part of the floating cover 2 with its vertical end part 4 can also be seen in section.
  • the mat 9 is wrapped around an elastic support body 22.
  • This support body 22 is as a tubular body or hose-like body, in contrast to the support body 22 of the FIG. 5 , executed.
  • the two Edge regions of the mat 9 are stacked towards the inside of the container such that the lower edge region 17 protrudes inwards.
  • This sealing profile 67 is secured in the region of the superimposed edge regions on a spring arm 11 having an upper, angled to the inside 3 of the container wall 1 section, by means not shown in detail fasteners.
  • the mat 9 is thus wrapped around the support body 22 and the superposed edge portions 17 are clamped and held with a support member 8.
  • FIG. 1 As in FIG.
  • FIG. 6 moreover shows a possibility to attach the sealing profile 67 to a sliding plate 23, which bears flat against the inside 3 of the container wall 1, namely at the upper edge region thereof.
  • This sliding plate 23 is part of a primary sealing device 68 and is guided on the vertical end part 4 of the floating cover 2 by a support structure, not shown.
  • the reference numeral 24 denotes an additional weather cover, below which the sealing apron 15 of the primary sealing device extends to the angled edge 13 of the vertical end part 4 of the floating cover 2.
  • the sealing profile 7, 27, 37, 47, 57 or 67 can be easily adapted to unevenness of the container wall 1 with the flexible mat 9 in bulbous curved shape and can slide without hooks on protruding welds the container wall 1.
  • the preferably formed from a needle felt made of high-strength plastic fibers mat 9 has a high wear resistance and can slide for many years on the rough container wall 1. In the frost case, the mat 9 can freeze only along a narrow line on the container wall 1. The formed, narrow ice surface is easily broken in a roof movement, without Damage to the sealing profile 7, 27, 37, 47, 57 or 67 or the entire sealing device 6, 68.
  • the water-wicking mat 9 is always similar Shape sealing on the container wall 1, with approximately constant curved shape and approximately constant narrow surface 10 to the container wall 1, so that the effect of the seal remains unchanged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Claims (16)

  1. Moyen pour l'étanchéité de l'espace annulaire (5) entre une paroi interne (3) d'un réservoir cylindrique vertical pour liquides, et un toit flottant (2) comprenant un profilé d'étanchéité (7) circulaire appliqué contre la paroi interne de récipient avec un grand nombre d'unités de pression (11) réparties dans la direction périphérique, qui pressent le profilé d'étanchéité contre la paroi interne de récipient et au moins un tablier d'étanchéité (15) circulaire, recouvrant l'espace annulaire entre la paroi interne de récipient et une paroi externe du toit flottant, le profilé d'étanchéité présentant au moins un tapis (9) en fibres synthétiques absorbant en particulier l'eau de pluie s'écoulant au-dessus de la zone se trouvant au dessus du toit flottant, tapis qui est maintenu par au moins un élément support (8), caractérisé en ce que les zones de bordure du tapis (9) sont détournées de la paroi interne de récipient (3) et en ce que le tapis (9) réalisé flexible est maintenu et serré au moins sur ses deux zones de bordure détournées de la paroi interne de récipient (3) au moyen de l'élément support (8) de sorte que le tapis (9), vu dans une coupe perpendiculaire, est incurvé au moins dans la zone (10) appliquée contre la paroi interne de récipient (3) convexe par rapport à la paroi interne de récipient (3).
  2. Dispositif selon la revendication 1, caractérisé en ce que l'élément support est réalisé comme une plaque d'appui (8), le tapis(9) étant fixé sur deux bords opposés de la plaque d'appui (8).
  3. Dispositif selon la revendication 2, caractérisé en ce que la plaque d'appui (8) est réalisée plane.
  4. Dispositif selon l'une des revendications 1 ou 3, caractérisé en ce que l'élément support (8) est courbé en s'éloignant de la paroi interne de récipient (3) sur les bords auxquels est fixé le tapis (9).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce qu'entre le tapis (9) et l'élément support (8), il est inséré un corps d'appui élastique (22) qui soutient le tapis (9) dans sa courbure convexe.
  6. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'élément support (8) dépose le tapis (9) à plat.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que les deux zones de bordure du tapis (9) sont fixées sur la face de l'élément support (8) tournée vers la paroi interne de récipient (3).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que la zone inférieure de bordure du tapis (9) est fixée sur la face de l'élément support (8) tournée vers la paroi interne de récipient (3) tandis que la zone de bordure supérieure du tapis (9) est fixée sur la face opposée de l'élément support (8) détournée de la paroi interne de récipient (3), la zone supérieure de bordure du tapis (9), vue en coupe transversale, s' étendant en forme de boucle autour du bord supérieur de l'élément support (8).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que l'élément support (8, avec le tapis (9) maintenu contre, est maintenu dans la zone inférieure au moyen des unités de pression (11).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que les unités de pression (11) s'appliquent à peu près au milieu à l'élément support (8).
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que le tablier d'étanchéité (15) est fixé à la zone inférieure de bordure du tapis (9) sur sa face externe détournée de la paroi interne de récipient (3).
  12. Dispositif selon la revendication 1, caractérisé en ce que le tapis (9) est placé autour d'un corps d'appui (22) et est serré et maintenu sur l'élément support (8) avec les zones superposées de bordure.
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce que le tapis (9) se compose de fibres synthétiques ayant une structure hautement absorbante.
  14. Dispositif selon l'une des revendications 1 à 13, caractérisé en ce que le tapis (9) présente une épaisseur comprise entre 5 et 20 mm.
  15. Dispositif selon la revendication 13, caractérisé en ce que le tapis (9) est composé d'un feutre aiguilleté.
  16. Dispositif selon la revendication 15, caractérisé en ce que le tapis (9) présente une densité supérieure à 0,1 g/cm3.
EP20040030876 2004-01-06 2004-12-28 Moyen d'étanchéité pour l'espace annulaire entre la paroi interne d'un réservoir cylindriqe à parois verticales pour liquides, et le toit flottant Ceased EP1553028B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410001206 DE102004001206B4 (de) 2004-01-06 2004-01-06 Vorrichtung zum Abdichten des Ringspalts zwischen einer Behälterinnenwand eines für eine Flüssigkeit bestimmten vertikalen Rundbehälters und einer schwimmenden Abdeckung
DE102004001206 2004-01-06

Publications (3)

Publication Number Publication Date
EP1553028A2 EP1553028A2 (fr) 2005-07-13
EP1553028A3 EP1553028A3 (fr) 2005-11-02
EP1553028B1 true EP1553028B1 (fr) 2010-03-24

Family

ID=34585357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040030876 Ceased EP1553028B1 (fr) 2004-01-06 2004-12-28 Moyen d'étanchéité pour l'espace annulaire entre la paroi interne d'un réservoir cylindriqe à parois verticales pour liquides, et le toit flottant

Country Status (2)

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EP (1) EP1553028B1 (fr)
DE (2) DE102004001206B4 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH94546A (de) * 1920-12-23 1922-05-01 Bbc Brown Boveri & Cie Randabdichtung an Trennwänden in ölgefüllten Gefässen für elektrische Apparate.
US2092877A (en) * 1932-07-29 1937-09-14 Standard Oil Dev Co Spring seal for floating roofs
US2072798A (en) * 1932-07-30 1937-03-02 Hewitt Rubber Corp Sealing means for floating roofs for tanks
US2190476A (en) * 1937-01-21 1940-02-13 Standard Oil Dev Co Resilient seal for floating roofs
US3075668A (en) * 1960-04-21 1963-01-29 Chicago Bridge & Iron Co Resilient foam seal for floating roof
US4258858A (en) * 1979-07-09 1981-03-31 Russell Robert L Apparatus for sealing floating roof tanks
DE3145753A1 (de) * 1981-11-19 1983-05-26 Ingenieurbüro Imhof GmbH, 6050 Offenbach Vorrichtung zur abdichtung des ringspalts zwischen behaelterwand und schwimmender abdeckung eines grossraumbehaelters
DE3202278A1 (de) * 1982-01-25 1983-07-28 Ingenieurbüro Imhof GmbH, 6050 Offenbach Vorrichtung zur entfernung des niederschlagswassers von der senkrechten innenwand eines schwimmdachtanks
DE3503183A1 (de) * 1985-01-31 1986-08-07 Carl Spaeter Gmbh, 2000 Hamburg Sekundaerdichtung fuer tankschwimmdaecher
US4615458A (en) * 1985-08-05 1986-10-07 Chicago Bridge & Iron Company Floating roof tank with rim space seal

Also Published As

Publication number Publication date
DE102004001206B4 (de) 2006-05-04
DE502004010934D1 (de) 2010-05-06
EP1553028A3 (fr) 2005-11-02
DE102004001206A1 (de) 2005-08-04
EP1553028A2 (fr) 2005-07-13
DE102004001206A8 (de) 2005-11-17

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