EP0122591A2 - Moyen d'étanchéité pour l'espace annulaire entre la paroi d'un réservoir et le toit flottant d'un grand réservoir de stockage - Google Patents

Moyen d'étanchéité pour l'espace annulaire entre la paroi d'un réservoir et le toit flottant d'un grand réservoir de stockage Download PDF

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Publication number
EP0122591A2
EP0122591A2 EP84104007A EP84104007A EP0122591A2 EP 0122591 A2 EP0122591 A2 EP 0122591A2 EP 84104007 A EP84104007 A EP 84104007A EP 84104007 A EP84104007 A EP 84104007A EP 0122591 A2 EP0122591 A2 EP 0122591A2
Authority
EP
European Patent Office
Prior art keywords
spring
tank wall
sealing element
sealing
free
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
EP84104007A
Other languages
German (de)
English (en)
Other versions
EP0122591A3 (en
EP0122591B1 (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 AT84104007T priority Critical patent/ATE37341T1/de
Publication of EP0122591A2 publication Critical patent/EP0122591A2/fr
Publication of EP0122591A3 publication Critical patent/EP0122591A3/de
Application granted granted Critical
Publication of EP0122591B1 publication Critical patent/EP0122591B1/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
    • B65D88/50—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with resilient foam or stuffed 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
    • 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 invention relates to a device for sealing the annular gap between the vertical container wall and the floating cover of a large-capacity container, in particular a floating roof tank or a fixed roof tank with an internal floating cover, consisting of a plurality of spring elements fastened at regular intervals next to one another on the circumference of the floating cover, which bridge the annular gap under spring tension and press with its free ends an annularly closed, outer sealing element against the container wall, the annular gap being closed by a sealing apron which runs around the entire annular gap between the outer sealing element and the floating cover.
  • annular gap seals are mainly used for the storage of volatile, liquid refinery products and chemicals to avoid evaporation losses and the accumulation of dangerous vapors.
  • the annular gap between the vertical tank wall and floating ceiling required for the vertical movement of the floating cover must be closed by a sealing system that is as elastic as possible, which 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 thereby the escape of product vapors or the intrusion to prevent rainwater as much as possible.
  • annular gap seal Another important task of the annular gap seal is to ensure that the free-floating cover is adequately centered, which is to ensure trouble-free vertical movement without local overloading or tilting.
  • the annular gap seal should be able to exert a uniformly strong centering effect over the entire circumference of the tank, bridge extreme local deviations in the annular gap width with the aid of sufficient spring travel, and slide as smoothly as possible and with little wear and tear over sharp unevenness in the tank wall.
  • Annular gap seals for floating roof tanks are today usually divided into a primary seal and a secondary seal, with the primary seal facing the stock 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 especially to prevent the ingress of rainwater.
  • annular gap seals for indoor floating ceilings in fixed roof tanks only have the task of limiting product emissions.
  • the wiper packing which is pressed elastically against the inner wall of the tank by spring force, must not perform any tilting movements despite the operational change in the annular gap width and the effect of frictional forces and sliding obstacles, and should always rest on the tank wall with its full working surface and sufficient contact pressure.
  • the known pressure and guide systems do not meet these requirements.
  • the strong change in the contact forces and the angular position to the tank wall causes increased wear of each sealing element due to locally excessive stress, which often causes early failure of the secondary seal.
  • the spring arms directed towards the tank wall at an acute angle with stretched legs and a narrow sealing element can hook up and tip over relatively easily despite the large structural height.
  • the water film running down the tank wall during driving rain cannot be wiped off by this design of the outer sealing elements.
  • the spring forces and thus the contact forces of the sealing elements increase too much and lead to premature wear of the sealing elements.
  • the contact height of the sealing elements changes with the gap width. This is particularly disadvantageous for the primary side of the seal, since the length and fixation of the primary leg must be determined according to the smallest gap width to be expected and taking into account different immersion depths of the floating cover.
  • the primary seal must not yet be immersed in the stock product. At the locations of medium and large gap widths, the primary seal then lies too high on the tank wall, as a result of which the vapor space below the primary seal is further enlarged, which is undesirable.
  • U-shaped resilient pressure members are provided, which are attached to the outer circumference of the floating roof on the one hand and, on the other hand, pivotally engage sliding shoes which are supported by the resilient pressure members while simultaneously centering the floating roof against the inner wall of the Container are pressed.
  • ring-shaped sealing elements with sharp-edged and stiff profiles are additionally attached to the slide shoes.
  • the pressure elements are designed to be very robust due to the strong vertical forces, which means that when the gap narrows, the forces acting directly on the sealing elements increase inadmissibly. Due to the poor sliding properties of this device, in connection with inadmissibly increasing spring forces, there is a risk that the seal on strong sliding obstacles (horizontal weld seam) hooks so strongly that the entire floating roof is tilted and stuck.
  • the invention has for its object to provide a device for sealing the annular gap with improved pressure device with simultaneous spring, support and guiding properties, which can be used both with individual primary or secondary seals on floating roof tanks, or on the sealing of an internal floating ceiling, or but can be used in a suitable manner for combined primary-secondary seals and meets the aforementioned requirements.
  • this object is achieved in that in a known manner (DE-AS 11 36 276) made from narrow strips, U-shaped spring clips with one leg end are attached to the outer edge of the floating cover, that the free Spring leg, with the end of which the outer sealing element is rigidly connected, is supported with the sealing element and a second contact point on the tank wall, which is remote in the vertical direction, so that with all movements of the floating cover the contact points of the free one Spring leg attacking reaction forces of the tank wall always keep the free spring leg in a constantly upright position.
  • FIG. 1 shows the vertical container wall 1 of a floating roof tank, which bears the annular gap seal, generally designated by the reference number 2, which bridges the annular gap 3 between the container wall 1 and the floating roof 4.
  • the annular gap seal 2 is used above a conventional primary seal, not shown.
  • U-shaped spring clips 6 are fastened to the horizontally inwardly directed flange 5 of the floating roof 4 by means of screws 7 and with the interposition of terminal strips 8.
  • the free legs 6a of the spring clip 6 are fastened by means of screws 9 to flanges 10 of C-shaped receiving profile pieces 11 directed vertically upwards, about two to four spring clips 6 being connected to a receiving profile piece 11.
  • Extension arms 6b of the free spring legs 6a, as well as the sealing apron 17 which runs endlessly around the entire annular gap, are fastened to a second, vertically downward-directed flange 13 of the receiving profile pieces 11 by means of clamping strips 14 and screws 15.
  • the C-shaped receiving profile pieces 11 are perforated at 16 on the back.
  • Short skids 18 are attached in the upper area of the free spring legs 6a.
  • the pressing forces of the spring clips 6 are distributed over the sealing element 12 and the vertical extreme points of the free spring legs 6a to the tank wall, formed by the extension arms 6b and the skids 18.
  • the precipitates running down the tank wall 1 are absorbed by the sealing element 12_ and released at the perforation 16 of the receiving profile pieces 1 " 1. From here, the precipitates are discharged via the circumferential sealing apron 17 derived to the floating roof 4.
  • the U-shaped spring clips 6 are made from narrow strips of stainless spring steel.
  • the extension arms 6b of the free spring legs 6a are made of non-sparking metal (e.g. brass) and are V-shaped, the legs 6c, which are led back at an angle upwards, support the circumferential sealing skirt 17 when the annular gap 3 becomes narrower, so that the stripped from the tank wall 1 Water cannot be collected in large quantities on the sealing apron 17.
  • the skids 18 attached to the free spring legs 6a are also made of non-sparking metal.
  • FIG. 2 shows the shape of a spring clip with an extremely wide gap 3
  • FIG. 3 with an extremely narrow gap 3.
  • FIG. 4 shows the position of the spring clip when the floating roof 4 moves downward.
  • the frictional force that arises between the sealing element 12 and the tank wall 1 causes the U-shaped spring clip to expand slightly.
  • the lower end of the free spring leg 6b is pressed against the tank wall, as a result of which the contact force between the tank wall and the sealing element is reduced and a further spreading of the spring clip is prevented.
  • the sealing element fastened to the free spring leg 6a undergoes only a slight change in position with all movements of the floating roof relative to the tank wall. The effect of the sealing element is not affected by this. 2 to 5, the different directions of movement of the floating roof 4 are indicated by corresponding arrows.
  • FIG. 6 shows the secondary seal 2 'of a floating roof tank with a vapor-tight, elastic sealing element 12', which is primarily intended to limit the product emission.
  • the primary seal underneath is not shown.
  • Comparable components are labeled with the reference numbers used for Fig.1, but are provided with an index line.
  • the sealing element 12 'running around the entire annular gap 3' is pressed almost completely against the tank wall T 'by individual, C-shaped receiving profile pieces 11'.
  • the free spring legs 6a 'and their downward extension arms 6b' are fastened by screws 9 'and 15' to horizontal legs of the C-shaped receiving profile pieces 11 ', about two to four spring clips 6' each being connected to a receiving profile piece 11 ' .
  • the circumferential sealing apron 17 ' is fastened to the lower leg of the receiving profile pieces 11' by means of clamping strips 14 'and screws 15'.
  • FIG. 7 shows the construction of a secondary seal 2 "with a water-stripping sealing element 12" in conjunction with a conventional primary seal 19.
  • Comparable components are designated with the reference numbers used for FIG. 1, which, however, are provided with two index lines.
  • the U-shaped spring clips 6 are fastened together with the sealing apron 22 of the primary seal 19 to the horizontal flange 5" of the floating roof 4 "by means of angled clamping strips 8" and screws 7 ".
  • the sealing apron 17" of the secondary seal 2 is on the one hand with the lower flange 13 "of the C-shaped receiving profile pieces 11" and, on the other hand, are fastened together with the sealing apron 22 of the primary seal 19 to the upper end of the sliding plates 23 by means of clamping strips 20 and screws 21.
  • the sliding plates 23 of the primary seal 19 can be moved horizontally by means of articulated scissors 24 with the outer edge of the floating roof 4 "connected.
  • Each about two to four spring clips 6 are connected to a receiving profile piece 11".
  • the free spring legs 6a "resting on the tank wall 1" have no extension underneath the receiving profile pieces 11 ".
  • the friction between the tank wall 1 "and the seal stretches element 12 "the sealing apron 17” and prevents the spring clips 6 "from bending open further.
  • the upper part of the free spring legs 6a prevents the spring clips 6" from being compressed further by the sliding skids 18 "against the tank wall due to reduced frictional forces
  • the water discharged from the tank wall 1 "through the water-stripping sealing element 12" runs via the sealing apron 22 of the primary seal 19 onto the floating roof 4 ".
  • the height of the sealing skirt 17 is advantageously dimensioned such that the secondary seal 2" always has unimpeded contact with the tank wall T "even if the primary seal 19 is not adapted to the tank wall t", the sealing element 12 "simultaneously with respect to the height of the floating roof 4" comes into contact with the tank wall 1 "as low as possible.
  • FIG. 8 shows the common construction of a primary seal 19 and a secondary seal 2 of a floating roof tank. Components comparable to the secondary seal shown in FIG. 1 are identified by the same reference numbers.
  • the sealing apron 17 and the spring clip 6 of the secondary seal 2 are fastened by means of screws 7 and clamping strips 8 to the flange 5 of the floating roof 4 directed horizontally towards the middle of the tank.
  • On the free spring legs 6a of the spring clip 6 short mounting profile pieces 11 are screwed onto the flanges 10, which are directed approximately vertically upwards, by means of screws 9 and press a water-stripping sealing element 12 against the tank wall 1.
  • Each about two to four spring clips 6 are connected to a mounting profile piece 11 .
  • each extension arm 21 of the primary seal 19 fastened by means of screws 20.
  • a U-shaped spring clip 22 and a further one-arm spring clip 23 are fastened by means of screw connections 24.
  • a sealing apron 30 is screwed to a separate plunge band 31 welded at 32 using screws 25 and clamping strips 26 on vertically downward flanges 27 of short receiving profile pieces 28.
  • Extension arms 22b of the spring legs 22a are attached to the upper, vertically directed flanges 29 of the receiving profile pieces 28 by means of screws 35, which are designed like runners.
  • Each about two to four spring clips 22 are connected to a receiving profile piece 28.
  • the sealing apron 30 of the primary seal 19 is continued after fastening below the receiving profile pieces 28 by means of a connecting apron 33 around the primary seal 19 and on the lower, vertical flanges 13 of the receiving profile pieces 11 of the secondary seal 2 together with the skid-like extension arms 6b of the spring legs 6a below Use of terminal strips 14 and screws 15 clamped gas-tight.
  • an elastic sealing element 34 is held non-positively and without gaps along the tank circumference.
  • the sealing apron 30 is connected in a gas-tight manner to the elastic sealing element 34 by means of the welded-on, separate immersion tape 31.
  • the vapor space between the side wall 4a of the floating roof 4, the sealing apron 30, the immersion tape 31 and the product level 36 is hereby closed in an absolutely gas-tight manner.
  • the connecting apron 33 between the primary seal 19 and the secondary Seal 2 creates a large gas-free space between the two sealing systems and forms a load-resistant connection between the primary seal and the secondary seal.
  • the connecting apron 33 Since the U-shaped spring clips of the primary seal and the secondary seal are directed towards each other and these spring clips have less sliding resistance when the floating roof moves vertically in the direction of the spring apex, the connecting apron 33, which can withstand tensile loads, is a safety element in the event of sliding problems with one of the two seals.
  • the connecting apron 33 thus has the same effect as the extension arms 6b and 22b of the spring legs 6a and 22a resting on the tank wall and can replace them if necessary.
  • the spring clips 23 support the spring forces of the spring clips 22 and of the extension arms 21.
  • the extension arms 21 can be made of normal steel due to their small angle change.
  • the spring clips 22, 23 and 6 are advantageously made of stainless spring steel, the receiving profile pieces 28 and 11 made of stainless steel.
  • the skids 37 and 18 attached to the spring clips 22 and 6, as well as the extension arms 22b and 6b of the spring legs 22a and 6a are made of non-sparking metal.
  • the sealing aprons 30, 31, 33 and 17 are provided from appropriately product and weather-resistant plastics with fabric reinforcement.
  • the sealing elements 34 and 12 must also be sufficiently resistant to the frictional forces on the tank wall.
  • the primary seal is advantageously to be dimensioned such that the sealing element 34 is immersed deeply in the floating roof 4, just above the liquid level 36 completes.
  • the secondary seal is advantageously dimensioned such that the sealing element 12 abuts the tank wall 1 at the lowest possible height above the floating roof 4, so that the water stripped from the tank wall 1 can just be drained off to the floating roof.
  • FIG. 9 shows the annular gap seal 202 of an internal floating cover 204 with an extremely low overall height.
  • the sealing apron 217 which runs around the entire annular gap 203 and the narrow, U-shaped spring clips 206 are fastened to the outer upper edge 205 of the inner floating cover 204 by means of clamping brackets 208 and screws 207.
  • Contact strips 218 are riveted to 219 on the free legs 206a of the spring clip 206 which bear against the tank wall 201.
  • the spring clips 206 are immersed in the stock product after being attached to the inner floating cover 204.
  • the free spring legs 206a are bent away from the tank wall 201 above the product level 220 and are screwed to the receiving profile pieces 211 by means of clamping strips 210 and screws 209.
  • Foam elements 212 are positively held in the C-shaped receiving profile pieces 211.
  • the outer part 217a of the sealing apron 217 is wrapped around the receiving profile piece 211 and the foam elements 212, so that a completely closed outer sealing body is produced.
  • On the upper leg of the receiving profile pieces 211, the receiving profile pieces 211, sealing apron 217 and the extension arms 206b of the free spring legs 206a are firmly connected by clamping strips 214 and screws 215.
  • the contact strips 218 and the extension arms 206b of the free spring legs 206a are made of non-sparking metal.
  • As' material for the spring clip 206 stainless spring band steel is advantageously used.
  • U-shaped spring clips 106 which open upwards and are arranged in the annular gap 103 between the floating roof 104 and the tank wall 101, are attached to a vertical flange edge of the side wall 104a of the floating roof while simultaneously clamping the edges of a secondary sealing skirt 117 and a primary sealing skirt 122 by means of screws 107 are attached.
  • the upper end of the free leg 106a of each spring clip 106 is fixedly connected by means of a screw 109 to a downward flange of a C-shaped receiving profile piece 111 which is open to the tank wall 101, while simultaneously clamping the outer edge of the secondary sealing apron 117.
  • the receiving profile pieces 111 which are arranged in a ring around the entire tank circumference with small gaps, press a water-stripping secondary sealing element 112 almost completely against the tank wall 101.
  • two to four spring clips 06 are connected to a receiving profile piece 111.
  • each spring clip 106 On each spring clip 106 is a downward pointing; from the tank wall 101 bent additional spring 40 (by rivets or the like.) Attached. At the free ends of the additional springs 40, a primary sealing element 134 resiliently abutting the tank wall 101 is screwed on while simultaneously tightly clamping the outer edge of the primary sealing apron 122 and an immersion band 131.
  • slide clips made of preferably non-sparking material can be attached to the spring clips 106, as has already been described with reference to other exemplary embodiments.
  • a roller 41 can be attached to each spring clip, as illustrated in FIG. 11. As a result, no sliding friction occurs at the contact points, but only the significantly lower rolling friction, which considerably reduces wear.
  • the rollers 41 are each fastened by means of a bearing block 42 to the free legs 106a of the spring clip by screws 43.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Closures For Containers (AREA)
EP84104007A 1983-04-14 1984-04-10 Moyen d'étanchéité pour l'espace annulaire entre la paroi d'un réservoir et le toit flottant d'un grand réservoir de stockage Expired EP0122591B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104007T ATE37341T1 (de) 1983-04-14 1984-04-10 Vorrichtung zu abdichtung des ringspalts zwischen behaelterwand und schwimmender abdeckung eines grossraumbehaelters.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833313564 DE3313564A1 (de) 1983-04-14 1983-04-14 Vorrichtung zur abdichtung des ringspalts zwischen behaelterwand und schwimmender abdeckung eines grossraumbehaelters
DE3313564 1983-04-14

Publications (3)

Publication Number Publication Date
EP0122591A2 true EP0122591A2 (fr) 1984-10-24
EP0122591A3 EP0122591A3 (en) 1986-02-19
EP0122591B1 EP0122591B1 (fr) 1988-09-21

Family

ID=6196409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104007A Expired EP0122591B1 (fr) 1983-04-14 1984-04-10 Moyen d'étanchéité pour l'espace annulaire entre la paroi d'un réservoir et le toit flottant d'un grand réservoir de stockage

Country Status (4)

Country Link
US (1) US4524878A (fr)
EP (1) EP0122591B1 (fr)
AT (1) ATE37341T1 (fr)
DE (2) DE3313564A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008076A1 (fr) * 1989-01-17 1990-07-26 Kuil Piet Hugo Alphonsus V D Systeme d'etanchement de paroi de reservoir mobile
FR2707268A1 (fr) * 1993-07-09 1995-01-13 Tisserand Jean Perfectionnements aux toits flottants pour réservoir de stockage de liquide.
EP1106533A1 (fr) 1999-12-09 2001-06-13 Ingenieurbüro Imhof GmbH Dispositif pour rendre etanche une fente annulaire
EP2966010A1 (fr) * 2014-07-07 2016-01-13 Heinrich Imhof Système d'étanchéification pour l'espace annulaire entre la paroi d'un récipient cylindrique destiné à un liquide et une paroi externe d'un flotteur recouvrant
WO2022015338A1 (fr) * 2020-07-16 2022-01-20 Saudi Arabian Oil Company Système de protection contre la foudre pour réservoir à couvercle flottant externe

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4811859A (en) * 1987-11-27 1989-03-14 Kinghorn Jr Mark D Seal for floating roof
SA94140657B1 (ar) * 1993-06-16 2006-03-15 شيكاجو بريدج آند ايرن تكنيكال سيرفسز كمبني نظام تعليق زنبركي لمانع تسرب على شكل لوح معدني حذائي metallic shoe لسقف عائم
US5515989A (en) * 1994-02-09 1996-05-14 Tanco Engineering, Inc. Tank shoe spring and double seal
US5667091A (en) * 1994-12-29 1997-09-16 Chicago Bridge & Iron Technical Services Company Mounting system for floating roof seals
DE19752739B4 (de) * 1997-11-28 2006-09-14 Carl Spaeter Gmbh Sekundärdichtung für Schwimmdachtanks
US6354488B1 (en) * 2000-08-01 2002-03-12 Chicago Bridge & Iron Company Secondary seal for floating roof storage tank
US7748555B2 (en) * 2002-12-16 2010-07-06 Chicago Bridge & Iron Company Spring-loaded secondary seal for floating-roof storage tank
US8727161B2 (en) * 2012-06-06 2014-05-20 David Jon Rosenkrantz Rim space seal system for use with internal floating roof
US11548725B2 (en) 2013-03-15 2023-01-10 Industrial & Environmental Concepts, Inc. Cover systems, tank covering methods, and pipe retention systems
CN115096541B (zh) * 2022-08-26 2022-11-15 中国航空工业集团公司沈阳空气动力研究所 一种风洞试验段壁板间密封机构

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE1136276B (de) * 1959-11-19 1962-09-06 Aug Kloenne Fa Vorratsbehaelter fuer leicht fluechtige Fluessigkeiten
US3261496A (en) * 1962-11-21 1966-07-19 Wyatt Ind Inc Floating roof tank seal
US3565279A (en) * 1968-10-29 1971-02-23 Us Industries Inc Floating roof tank seal means
FR2210992A5 (fr) * 1972-12-06 1974-07-12 Voest Ag

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Publication number Priority date Publication date Assignee Title
US2651433A (en) * 1951-08-24 1953-09-08 American Pipe & Steel Corp Tank with floating roof
DE1267617B (de) * 1966-11-14 1968-05-02 Wilke Werke Ag Wasserschutz an Tankwaenden von Schwimmdachtanken
US3942674A (en) * 1974-07-31 1976-03-09 Nelson Ardell H Electrical grounding for tank floating cover
US4199074A (en) * 1978-09-14 1980-04-22 Donald M. Gammell Enclosed seal for open top volatile liquid storage tanks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136276B (de) * 1959-11-19 1962-09-06 Aug Kloenne Fa Vorratsbehaelter fuer leicht fluechtige Fluessigkeiten
US3261496A (en) * 1962-11-21 1966-07-19 Wyatt Ind Inc Floating roof tank seal
US3565279A (en) * 1968-10-29 1971-02-23 Us Industries Inc Floating roof tank seal means
FR2210992A5 (fr) * 1972-12-06 1974-07-12 Voest Ag

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008076A1 (fr) * 1989-01-17 1990-07-26 Kuil Piet Hugo Alphonsus V D Systeme d'etanchement de paroi de reservoir mobile
FR2707268A1 (fr) * 1993-07-09 1995-01-13 Tisserand Jean Perfectionnements aux toits flottants pour réservoir de stockage de liquide.
EP1106533A1 (fr) 1999-12-09 2001-06-13 Ingenieurbüro Imhof GmbH Dispositif pour rendre etanche une fente annulaire
DE19959359A1 (de) * 1999-12-09 2001-07-05 Imhof Ingbuero Gmbh Vorrichtung zum Abdichten eines Ringspalts
EP2966010A1 (fr) * 2014-07-07 2016-01-13 Heinrich Imhof Système d'étanchéification pour l'espace annulaire entre la paroi d'un récipient cylindrique destiné à un liquide et une paroi externe d'un flotteur recouvrant
WO2022015338A1 (fr) * 2020-07-16 2022-01-20 Saudi Arabian Oil Company Système de protection contre la foudre pour réservoir à couvercle flottant externe
US11591157B2 (en) 2020-07-16 2023-02-28 Saudi Arabian Oil Company Lightning protection system for external floating roof tank

Also Published As

Publication number Publication date
DE3474128D1 (en) 1988-10-27
US4524878A (en) 1985-06-25
DE3313564A1 (de) 1984-10-18
EP0122591A3 (en) 1986-02-19
EP0122591B1 (fr) 1988-09-21
ATE37341T1 (de) 1988-10-15

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