EP2075204A1 - Réservoir-caverne pour contenir des liquides - Google Patents

Réservoir-caverne pour contenir des liquides Download PDF

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Publication number
EP2075204A1
EP2075204A1 EP08022361A EP08022361A EP2075204A1 EP 2075204 A1 EP2075204 A1 EP 2075204A1 EP 08022361 A EP08022361 A EP 08022361A EP 08022361 A EP08022361 A EP 08022361A EP 2075204 A1 EP2075204 A1 EP 2075204A1
Authority
EP
European Patent Office
Prior art keywords
tank
metallic structure
metallic
transversal
static
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.)
Withdrawn
Application number
EP08022361A
Other languages
German (de)
English (en)
Inventor
Franco Ferrari
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.)
EFFE INGEGNERIA E COSTRUZIONI Srl
Original Assignee
EFFE INGEGNERIA E COSTRUZIONI Srl
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 EFFE INGEGNERIA E COSTRUZIONI Srl filed Critical EFFE INGEGNERIA E COSTRUZIONI Srl
Publication of EP2075204A1 publication Critical patent/EP2075204A1/fr
Withdrawn legal-status Critical Current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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/48—Arrangements of indicating or measuring devices
    • B65D90/50—Arrangements of indicating or measuring devices of leakage-indicating devices
    • B65D90/501—Arrangements of indicating or measuring devices of leakage-indicating devices comprising hollow spaces within walls
    • B65D90/503—Arrangements of indicating or measuring devices of leakage-indicating devices comprising hollow spaces within walls under pressure or vacuum
    • 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
    • B65D88/76—Large containers for use underground
    • 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
    • B65D90/02—Wall construction
    • B65D90/023—Modular panels
    • B65D90/024—Modular panels with features of cylindrical curvature
    • 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

Definitions

  • This invention concerns a tunnel-tank or large underground cistern for the containment of liquids of any kind.
  • Such tanks are generally cylindrical in shape with a horizontal or vertical axis and envisage an internal metallic structure for containment, apart from and anchored to the static structure in simple or reinforced concrete, and a filler material interposed between the two structures, the metallic one for containment and the static one.
  • the transversal ducts may, instead, be created from omega and flat sections for coverage, welded to the edges of the rings, which in this case do not have L-shaped profiles and the latter solution is generally preferred in that the calendering of the rings that are stiffened by profiles is difficult.
  • Such metallic elements allow an easier and more economical assembly of the metallic structure, (placed away from the intrados surface of the static concrete structure that protects it from the exterior, to which it is anchored) in that both the handling and the placing of the elements themselves are considerably easier and rationalised, compared to previous assembly techniques.
  • the metallic structure for containment is supported apart from the static reinforced or unreinforced concrete structure, by means of suitable U-bolts anchored to the same static structure and in the resulting interspace a filler material is poured or injected.
  • the system described above allows one to obtain, in the preparation of large underground or buried tanks, the best conditions of stability, in that the system made up of the set of a metallic containment structure, static structure, filler material and the surrounding ground, results integral as a single interactive structural complex, in such way that the set of the three structural components intervenes directly and unanimously on the stability of said tanks, said structural complex being configured according to the scheme of a tunnel-tank.
  • transversal and longitudinal ducts created, on the perimeter of the rings, for recovery and location of any possible leaks, both longitudinal and transversal, are made to converge under the tank in a single duct, with the function of collector of the possible leaks which in turn is located below and outside the tank itself, in such way as to have a termination in correspondence with a collecting vessel.
  • This vessel normally allows one to check any possible leaks from the tank, referred to the unit of time taken into consideration and therefore its degree of hermetic sealing, as well as the longitudinal location of the leak. That in as much as said leak turns out to be relative to the band of rings whose ducts converge in the collector duct connected with that vessel.
  • the purpose of this invention is to supply a more accurate monitoring system which allows one to continuously monitor the degree of hermetic sealing of the tunnel tank or the underground tank, and easily locates in a longitudinal sense the breakage from which any possible leak results.
  • the ducts are previously pressurised and on the termination of the collector duct for collection of leaks, as well as the aforesaid collecting vessel, a pressure detecting device is installed, which is particularly sensitive and able to monitor even a minimal variation of the pressure gradient exercised inside the duct of the tank in the case in which a break is found with leakage of inert gas.
  • the drop in pressure, revealed by the aforesaid device will therefore signal the presence of a leak from the tank that will easily be located.
  • a valve downstream from the pressure device, in the collector duct for collection of leaks the insertion of a valve is arranged which has a dual function: when closed, the valve allows one to read the value of the relative pressure of the gas inside the monitoring duct; when open, the valve allows one to recover the leak and to measure the consistency of the same in the unit of time considered.
  • the subject of this invention is formed by a tank-cavern or large underground cistern for the containment of liquids having the features of the attached claim 1.
  • the tank includes a metallic structure 2 and a static structure of covering 3, the latter aimed at separating the metallic structure from the surrounding ground, realised, for instance, in simple or reinforced concrete.
  • the metallic structure is supported inside the static structure of covering 3 by means of U-bolts (also insulating) 4 fixed to said static structure 3.
  • At least one layer of filler material 5 is envisaged, which may for example be poured or injected hot through suitable closable traps on the metallic structure.
  • said filler material must transmit the solicitations of the metallic structure to the static face and vice versa, and, for this purpose, oxidised bitumen has proved useful made liquid through heating and having the following average features:
  • said oxidised bitumen When cold, said oxidised bitumen presents the necessary plasticity to transmit the solicitations, without permanent deformations and without breakage, between the components of the tank.
  • This bitumen is poured in the interspace constructively realised between the static structure and the metallic structure of containment at a temperature of about 200-220 °C in such way as to completely fill the aforesaid interspace.
  • sections may be of any type whatsoever (flat sections, L-shaped, Z-shaped, etc.) and may be placed with any horizontal and transversal orientation as indicated in the drawings or even oblique.
  • Prominent elements may also be envisaged externally but located on the plating.
  • the longitudinal body of the tank is also valid for the heads of the tank itself both with a flat and a convex surface.
  • cylindrical tanks with a horizontal axis is also valid for tanks with any other shape and arrangement (vertical, subvertical, spherical tanks etc.).
  • the metallic structure is made up of a plurality of metallic elements or rings joined to one another by the transversal edges 7 which have suitable L-shaped profiles or equivalent, aimed at creating, directly with the placing side by side of said elements, the containment structure of the tank and with the help of flat sections, the formation of the transversal and longitudinal ducts for recovery and location of any possible leaks.
  • transversal monitoring ducts may instead be created from omega and flat sections, welded to these elements, which in this case do not have the L-shaped profile.
  • these monitoring ducts are made to converge below the tank in a single collector duct for collection of any possible leak, a channel which, in turn, is arranged so as to have a termination in correspondence with a monitoring chamber C in which a collector vessel may be envisaged.
  • This vessel normally supplies an indication of the level of the leakage from the tank and therefore of its degree of hermetic sealing.
  • a pressure detection device is installed, particularly sensitive even to the minimum pressure gradient, suitable to constantly monitor the pressure that is exerted from the inside of the tank monitoring ducts.
  • the indication of a drop in the pressure value found in the aforesaid device indicates a leak of inert gas toward the tank and the potential presence of liquid in the duct coming from a possible breakage or defectiveness of the metallic containment structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP08022361A 2007-12-28 2008-12-23 Réservoir-caverne pour contenir des liquides Withdrawn EP2075204A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000128A ITGE20070128A1 (it) 2007-12-28 2007-12-28 Serbatoio-caverna per il contenimento di liquidi.

Publications (1)

Publication Number Publication Date
EP2075204A1 true EP2075204A1 (fr) 2009-07-01

Family

ID=40315483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08022361A Withdrawn EP2075204A1 (fr) 2007-12-28 2008-12-23 Réservoir-caverne pour contenir des liquides

Country Status (2)

Country Link
EP (1) EP2075204A1 (fr)
IT (1) ITGE20070128A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITGE20100097A1 (it) * 2010-09-08 2010-12-08 Effe Ingegneria E Costruzioni S R L Serbatoio per il contenimento di idrocarburi e liquidi in genere

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1395313A (fr) * 1964-05-15 1965-04-09 Entpr S De Travaux Publics Ren Perfectionnements aux réservoirs métalliques souterrains
FR2213683A5 (fr) * 1973-01-10 1974-08-02 Ferrari Ing Nino
EP0325683A2 (fr) * 1988-01-29 1989-08-02 ING. NINO FERRARI -Impresa Costruzioni Generali S.r.l. Grand réservoir souterrain à une stabilité de construction prévue par l'interaction entre le carter métallique l'enrobage en béton et le revêtement d'espace intermédiaire
US5265465A (en) * 1990-04-16 1993-11-30 Coretank, Inc. Secondary containment and dual leak detection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1395313A (fr) * 1964-05-15 1965-04-09 Entpr S De Travaux Publics Ren Perfectionnements aux réservoirs métalliques souterrains
FR2213683A5 (fr) * 1973-01-10 1974-08-02 Ferrari Ing Nino
EP0325683A2 (fr) * 1988-01-29 1989-08-02 ING. NINO FERRARI -Impresa Costruzioni Generali S.r.l. Grand réservoir souterrain à une stabilité de construction prévue par l'interaction entre le carter métallique l'enrobage en béton et le revêtement d'espace intermédiaire
US5265465A (en) * 1990-04-16 1993-11-30 Coretank, Inc. Secondary containment and dual leak detection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITGE20100097A1 (it) * 2010-09-08 2010-12-08 Effe Ingegneria E Costruzioni S R L Serbatoio per il contenimento di idrocarburi e liquidi in genere
EP2428464A1 (fr) * 2010-09-08 2012-03-14 EFFE INGEGNERIA E COSTRUZIONI S.r.L. Réservoir pour le stockage d'hydrocarbures et liquide de tout type

Also Published As

Publication number Publication date
ITGE20070128A1 (it) 2009-06-29

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