GB2048449A - Storing liquefied gases - Google Patents

Storing liquefied gases Download PDF

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Publication number
GB2048449A
GB2048449A GB7916206A GB7916206A GB2048449A GB 2048449 A GB2048449 A GB 2048449A GB 7916206 A GB7916206 A GB 7916206A GB 7916206 A GB7916206 A GB 7916206A GB 2048449 A GB2048449 A GB 2048449A
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GB
United Kingdom
Prior art keywords
heat
installation
insulating material
liquefied gas
pieces
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
GB7916206A
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GB2048449B (en
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Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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Filing date
Publication date
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Priority to GB7916206A priority Critical patent/GB2048449B/en
Publication of GB2048449A publication Critical patent/GB2048449A/en
Application granted granted Critical
Publication of GB2048449B publication Critical patent/GB2048449B/en
Expired legal-status Critical Current

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Classifications

    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/126—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for large storage containers 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
    • 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
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0329—Foam
    • F17C2203/0333—Polyurethane
    • 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
    • F17C2203/03—Thermal insulations
    • F17C2203/0304—Thermal insulations by solid means
    • F17C2203/0345—Fibres
    • F17C2203/035—Glass wool
    • 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
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • 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
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/01—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
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • 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
    • F17C2260/037—Handling leaked fluid
    • 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
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The area 3 around a tank for storing liquefied gases is provided with loose pieces of heat-insulating material 5, preferably pieces of foamed glass. In case of failure of the tank, the pieces of heat-insulating material will float on the liquefied gas flowing into the area, so that the surface of the liquefied gas will be blanketed by the heat- insulating material. The floating heat-insulating material reduces evaporation of the liquefied gas and in the case of a fire in the area, the fire is suppressed by the floating heat-insulating material. Freezing of the heat-insulating material onto the bottom of the bund area is prevented by the presence of a thin flexible material, preferably polyethylene sheet material, between the said bottom and the heat-insulating material. <IMAGE>

Description

SPECIFICATION An installation for the storage of liquefied gas The invention relates to an installation for the storage of liquefied gas, for example liquefied natural gas or LPG, comprising a storage tank and a wall or dam surrounding the tank and spaced therefrom so as to define a collecting space around the tank.
The provision of such a collecting space is generally known. The main object of this collecting space is, in the event of damage to the tank, to prevent the contents of the tank from flowing away, by containing leaking liquefied gas in the collecting space.
However, when cold liquefied gas flows into the collecting space, it will suddenly absorb a large quantity of heat from the environment, with the effect of a rapid evaporation of the liquefied gas. As a result a large, concentrated cloud of gas could be formed suddenly. This large, rapidly forming inflammable cloud of gas increases the danger of an explosion or of a fire, even at relatively large distance from the tank.
Our British Patent Specification No.
1.494.634, published on 7th December, 1977, discloses some provisions for preventing the rapid formation of a large concentrated cloud of gas, amongst others providing the bottom of the collecting space with heatinsulating material adapted to float on liquefied gas and not fixed to the bottom of the collecting space. The aim of the heat insulating material is to form a floating cover when liquefied gas is present in the collecting space, so that the evaporation of the liquefied gas is reduced.
It is preferred to use a fire resistant heatinsulating material, for example foamed glass, since such a heat-insulating material floating on the liquefied gas in the collecting space will effectively suppress a fire in the collecting space by blanketing the surface of the liquefied gas.
Often, the bottom of the collecting space and/or the heat insulating material are wet, for example due to rain or dew. In this case ice is formed, when liquefied gas enters the collecting space or during inclement weather.
As a result, the heat insulating material will stick to the bottom of the collecting space and will be unable to float on the liquefied gas.
The object of the present invention is to overcome this problem of freezing of the heatinsulating material onto the bottom of the collecting space.
Therefore according to the invention, the installation for the storage of liquefied gas comprises a storage tank and a wall or dam surrounding the tank and spaced therefrom so as to define a collecting space around the tank, wherein the collecting space contains pieces of heat-insulating material adapted to float on liquefied gas and separated from the bottom of the collecting space by a thin flexible material.
The thin flexible material is preferably a sheet material such as polyethylene sheet material.
Due to the presence of the sheet material, it is ensured that the heat-insulating material does not stick to the bottom when water is present is always free to float on the liquefied gas.
The invention will be further described with reference to the accompanying drawings, in which Figure 1 shows a diagrammatic cross-sectional side elevation of an installation for the storage of liquefied gas; Figure 2 shows diagrammatically in top plan view the division in sections of the collecting space with small walls on a reduced scale; Figure 3 shows a diagrammatic cross-section of a part of a collecting space containing pieces of heat-insulating material according to a first embodiment of the invention; Figure 4 shows detail A of Fig. 3 on an enlarge scale; Figure 5 shows a diagrammatic cross-section of a part of a collecting space containing pieces of heat-insulating material according to a second embodiment of the invention, wherein containers are used; Figure 6 shows a diagrammatic cross-section of a special embodiment of a container;; Figure 7 shows a diagrammatic cross-section of a part of a collecting space containing pieces of heat-insulating material according to a third embodiment of the invention.
In the figures identical parts are indicated by identical reference numerals.
Referring to Figs. 1 and 2 a tank 1 for the storage of liquefied gas is surrounded by a wall or dam 2, which forms a collecting space 3 around the tank 1.
The bottom 4 of the collecting space 3 is covered with pieces of heat-insulating material 5, adapted to float on the liquefied gas of the kind as stored in the tank 1 and consisting of pieces or granules of heat-insulating material, such as foamed glass. As will be explained below with reference to the Figs. 3 to 7, the heat-insulating material 5 is not in direct contact with the bottom 4 of the collecting space 3. The collecting space 3 is furthermore provided with small walls 6, which divide the space 3 into a number of separate sections 7.
These small walls 6, for example made of concrete or bricks, are wide enough to provide a matrix of foot paths through the collecting space 3. In this manner a good access to all the separate sections 7 is obtained for maintenance or repair, without the risk of deterioration of the layer of heat-insulating material 5.
The top of the wall 2 may be provided with a fence (not shown), for example made of a small mesh wire-netting, in order to prevent loss of floating pieces of heat-insulating material 5, in case of overflow of the liquefied gas.
Referring to Fig. 3, the collecting space 3 contains a layer 8 of loose granules of heatinsulating material, for example foamed glass.
Between the layer 8 and the bottom 4 of the collecting space 3 a thin flexible material 9 for example polyethylene sheet material, is arranged.
A suitable sheet material is a plastic material, such as polyethylene, or thermoplastic rubber. The sheet material 9 comprises a number of sheets 10 laid on and not fixed to the bottom 4 of the collecting space 3. As shown clearly in Fig. 4, the sheets 10 are laid at some distance from each other, so that gaps 11 are formed through which liquid present in the layer 8 can drain into the bottom 4 of the collecting space 3.
Due to the presence of the sheets 10 the granules of the layer 8 cannot freeze onto the bottom 4.
To keep the loose granules of the layer 8 in place and to minimize erosion of the layer 8, the granules adjacent to the top surface 1 2 of the layer 8 are held together by a binder material, such as a bitumen. This binder material may be applied by spraying and is not continuous so that liquid can easily drain through the layer 8.
When liquefied gas flows through a leak in the tank 1 into the collecting space 3, the pieces or granules of heat-insulating material will float on the liquefied gas and will cover the whole liquid surface so that the supply of heat from the wind or of radiation heat to the liquefied gas is reduced. In case of fire in the collecting space, the floating granules will suppress the fire.
Referring now to Fig. 5, the bottom 4 of the collecting space 3 is provided with two layers of filled, closed containers in the form of bags 13, which are adapted to float on liquefied gas of the kind stored in the tank 1.
The bags 13, made of a thin flexible material, such as polyethylene sheet material, are filled with pieces of heat-insulating material 14, for example granules of foamed glass, which are adapted to float on liquefied gas.
When liquefied gas from the tank 1 flows into the collecting space 3, the liquefied gas will collect between the bottom 4 and the bags 1 3 and finally the bags 1 3 will float on the liquefied gas and will protect the liquefied gas against the supply of radiation heat or of heat from the wind. In case of a fire in the collecting space, the floating bags will suppress the fire.
The bags 1 3 are so stowed that virtually no free straight passages are present between the bottom 4 and the space above the layers of bags 13, so that liquefied gas present below the layers of bags 1 3 will not be in direct contact with the air, so that evaporation of, and the supply of heat to, the liquefied gas is reduced.
Water present on top of the bags 13, can slowly drain through passages 1 5 between the bags 1 3 and into the bottom 4.
It is desirable to provide the lower parts of the bags 1 3 with small openings 16, through which any water present in the bags 1 3 can escape.
As shown in Fig. 6, the bags 1 3 may contain boxes 17, made of for example cardboard, and filled with pieces or granules of heat-insulating material 1 4.
In Fig. 7 the bottom 4 of the collecting space 3 is covered by a layer of filled bags 1 3 of the type shown in Fig. 5. Above the layer of bags 1 3 a layer 1 8 of pieces of heatinsulating material, for example foamed glass, adapted to float on liquefied gas, is arranged.
The layer 1 8 prevents liquefied gas, entered into the collecting space 3 and collected below the layer of bags 13, to be in direct contact with the air via the passages 1 5 between the bags 13.
The top surface 1 9 of the layer 1 8 of pieces of heat-insulating material is provided with a non-continuous layer of a binder, such as a bitumen, to hold the pieces adjacent to the top surface 1 9 together. If desired, a layer of thin flexible material, such as waste polyethylene sheet material, may be arranged between bags 1 3 and the layer of loose heat-insulating material 1 8. This layer of waste sheet material is especially useful when the bottom 4 drains off water poorly.
When liquefied gas from the tank 1 flows into the collecting space, the bags 1 3 together with the loose, heat-insulating material 1 8 will float on the liquefied gas and will protect the liquefied gas against the influx of environmental heat. In the case of a fire in the collecting space, the floating heat-insulating material and the floating bags will suppress the fire.
Instead of one or two layers of bags, any desired number of layers of bags may be applied with or without a layer of loose heatinsulating material on top of the layers of bags.
The invention is not restricted to a collecting space provided with the small walls 6, shown in the Fig. 2. The invention is also applicable to collecting spaces which are not divided into small sections.
It is remarked that instead of foamed glass any other suitable heat-insulating material may be used, for example polyurethane foam, although the use of foamed glass is preferred, since it is a fire-resistant material. The heatinsulating material is preferably of the closed cell type.
Instead of by means of a binder, it is possible to keep the loose granules of heatinsulating material adjacent to the top surface of the layer of heat-insulating material in place by means of a netting of nylon, steel, aluminium or of any other suitable material.

Claims (11)

1. An installation for the storage of liquefied gas, comprising a storage tank and a wall or dam surrounding the tank and spaced therefrom so as to define a collecting space around the tank, wherein the collecting space contains pieces of heat-insulating material adapted to float on liquefied gas and separated from the bottom of the collecting space by a thin flexible material.
2. An installation as claimed in claim 1, wherein the thin flexible material is a sheet material.
3. An installation as claimed in any one of the claim 1 to 2, wherein the thin flexible material is polyethylene.
4. An installation as claimed in any one of the claims 1 to 3, wherein the heat-insulating material is foamed glass.
5. An installation as claimed in any one of the claims 1 to 4, wherein the pieces of heatinsulating material consist of loose granules, wherein the granules form a layer covering the bottom of the collecting space and wherein the granules adjacent to the top surface of the layer are held together by a binder.
6. An installation as claimed in any one of the claims 1 to 5, wherein the thin flexible material is provided with drainage holes.
7. An installation as claimed in any one of the claims 1 to 6, wherein at least some of the thin flexible material is applied in the form of containers and wherein at least a part of the pieces of heat-insulating material is present in the containers, the filled containers being adapted to float on the liquefied gas.
8. An installation as claimed in claim 7, wherein at least one layer of containers is applied.
9. An installation as claimed in claim 7 or 8, wherein all the pieces of heat-insulating material are present in the containers.
1 0. An installation as claimed in any one of the claims 7 to 9, wherein the containers are provided with drainage holes.
11. An installation as claimed in any one of the claims 7 to 10, wherein a layer of the pieces of heat-insulating material is present above the containers.
1 2. An installation as claimed in claim 11, wherein a layer of thin flexible material is present between the containers and the layer of the pieces of heat-insulating material.
1 3. An installation as claimed in any one of the claims 7 to 12, wherein the containers are closed bags.
1 4. An installation as claimed in claim 13, wherein the bags contain boxes filled with pieces of heat-insulating material.
1 5. An installation as claimed in any one of the claims 5 to 14, wherein the binder is a bitumen.
1 6. An installation for storage of liquefied gas, substantially as described with particular reference to the accompanying drawings.
GB7916206A 1979-05-10 1979-05-10 Storing liquefied gases Expired GB2048449B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7916206A GB2048449B (en) 1979-05-10 1979-05-10 Storing liquefied gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7916206A GB2048449B (en) 1979-05-10 1979-05-10 Storing liquefied gases

Publications (2)

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GB2048449A true GB2048449A (en) 1980-12-10
GB2048449B GB2048449B (en) 1983-03-30

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GB7916206A Expired GB2048449B (en) 1979-05-10 1979-05-10 Storing liquefied gases

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004059204A1 (en) * 2002-12-30 2004-07-15 Obschestvo S Ogranichennoj Otvetstvennostiju 'lukoil-Kaliningrad Morneft' Liquefied gas storage device (variants)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004059204A1 (en) * 2002-12-30 2004-07-15 Obschestvo S Ogranichennoj Otvetstvennostiju 'lukoil-Kaliningrad Morneft' Liquefied gas storage device (variants)

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Publication number Publication date
GB2048449B (en) 1983-03-30

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