GB2517746A - Storage tank suspension member and storage tank for storage of cryogenic liquid - Google Patents

Storage tank suspension member and storage tank for storage of cryogenic liquid Download PDF

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Publication number
GB2517746A
GB2517746A GB1315482.8A GB201315482A GB2517746A GB 2517746 A GB2517746 A GB 2517746A GB 201315482 A GB201315482 A GB 201315482A GB 2517746 A GB2517746 A GB 2517746A
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United Kingdom
Prior art keywords
tank
suspension member
fibres
attachment
suspension
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Granted
Application number
GB1315482.8A
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GB201315482D0 (en
GB2517746B (en
Inventor
Michael Himbury
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UBH INTERNAT Ltd
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UBH INTERNAT Ltd
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Publication date
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Priority to GB1315482.8A priority Critical patent/GB2517746B/en
Publication of GB201315482D0 publication Critical patent/GB201315482D0/en
Priority to EP14182661.0A priority patent/EP2843290A3/en
Publication of GB2517746A publication Critical patent/GB2517746A/en
Application granted granted Critical
Publication of GB2517746B publication Critical patent/GB2517746B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C3/00Vessels not under pressure
    • F17C3/02Vessels not under pressure with provision for thermal insulation
    • F17C3/08Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
    • F17C3/085Cryostats
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/01Reinforcing or suspension means
    • F17C2203/014Suspension means
    • F17C2203/016Cords
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/32Hydrogen storage

Abstract

A suspension member 100 of a cryogenic storage tank 500, wherein the cryogenic storage tank comprises an inner tank (510 figure 5) and outer tank (520 figure 5). The inner tank is suspended within the outer tank by means of one or more suspension members which extend between the inner and outer tank. The or each suspension members comprise a plurality of fibres which are aligned along an elongate axis of the suspension member. The fibres are preferably of an aramid type material or Kevlar (RTM). A bundle of fibres are secured by an attachment, means comprising a tapered passage way (242 figure 2) and a wedge (230 figure 2). Also disclosed is a method of assembling such a suspension member, a cryogenic tank having such a member and a method of assembling such a cryogenic tank.

Description

STORAGE TANK SUSPENSION MEMBER AND STORAGE TANK FOR STORAGE
OF CRYOGENIC LIQUID
The present disclosure relates to a suspension member of a cryogenic storage tank.
BACKGROUND
US 7757882 describes a tank for storage of liquid hydrogen, where the tank has an inner tank for storage of cryogenic liquid suspended within an outer tank. The opposing ends of the inner tank are suspended from the outer tank by means of suspension members which limit heat transfer between the inner and outer tank. It is disclosed that the suspension members can comprise woven materials, such as carbon fibre, Kevlar or the like. Such materials are effective in limiting heat transfer due to their relatively low heat transfer coefficient. The woven material of the suspension material is joined at the ends to form a loop.
A plurality of the loops are secured between a first roller on the inner tank and a second roller on the outer tank.
With such an arrangement the woven material has to be joined to form a loop, and a relatively bulky and complicated roller arrangement is required. It is desirable to limit the amount of material in such an attachment to reduce heat transfer.
It is an object of the device of the device and method of present disclosure to provide an improved cryogenic storage tank, which solves one of the above or other problems.
SUMMARY
There may be provided a suspension member of a cryogenic storage tank, the suspension member being configured to extend between a portion of an inner tank and a portion of an outer tank of the cryogenic storage tank to thereby suspend a portion of the inner tank within the outer tank, wherein the suspension member comprises a plurality of fibres which are aligned along an elongate axis of the suspension member.
Since the fibres are aligned to the elongate axis of the suspension member, rather than woven as a cord as disclosed in the prior art, the axial strength of the fibres are optimised for a given weight of material. In this way the amount of material for a given strength is reduced, and therefore the rate at which the suspension member transfers heat between the inner and outer tank is reduced.
The fibres are aligned to each other and not woven together to form a cord.
The suspension member may comprise attachment means suitable for attaching the fibres to the inner tank and outer tank. The attachment means may comprise a first and second attachment member, the first attachment member attaching a first end of the fibres to the inner tank, and the second attachment member attaching a second end of the fibres to the outer tank.
The first and / or second attachment member may comprise a self-tightening attachment. The self-tightening attachment may comprise a wedge and tapered passageway which is complimentary in shape to the wedge, wherein the fibres are arrangeable between the wedge and tapered passageway such that a tensile force applied to the fibres causes the wedge to be urged towards the tapered passageway.
The wedge and tapered passageway may be configured such that the fibres can be uniformly distributed between the wedge and tapered passageway. In this way the efficiency of the attachment member is maximised for a given weight. Consequently, less material can be used in the attachment member such that the rate at which the suspension member transfers heat between the inner and outer tank is reduced.
The tapered passageway may be formed through a body, the body having a mouth, through which the fibres are insertable into the tapered passageway.
The body may be connectable to a mounting member by means of an axially adjustable attachment. Advantageously, the axial adjustable attachment can be used to adjust the tension in the suspension member and / or the axial length of the suspension member. The axial adjustment may comprise a threaded connection. The axial adjustment may comprise a coupling threadably connectable to the body and mounting member, wherein the threadable connection comprises a first connection between the coupling and body having threads in a first direction, and a second connection between the coupling and mounting member having threads in a second direction. The first direction may, for example, comprise an anti-clockwise thread and the second direction may comprise a clockwise thread. In this way rotation of the coupling causes the axial distance between the body and mounting member to decrease or increase depending on the direction of rotation.
The mounting member may be attachable to the inner or outer tank by means of a further attachment. The further attachment may comprise a plate on the mounting member or inner/outer tanks, the plate being insertable into a slot in the other of the mounting member or inner/outer tank, and being securable by a pin through an aperture that extends through both the slot and plate.
The fibres may comprise a non-metallic fibre, for example Kevlar or other suitable para-aramid. The fibres may be 0.001mm to 0.1mm in diameter. The fibres may be 20cm -2m in length.
The plurality of fibres may be arranged in a bundle which is substantially circular in cross-section, and has a diameter which is about 15mm. The bundle may extend a distance of substantially 300mm between the first and second attachment member.
The wedge may be substantially conical or frustoconical in shape. The distance between a tip and a rear face of the wedge may be between 25 -400mm. The distance between a tip and a rear face of the wedge may about 150mm. The surface of the wedge may be inclined at less than 300 to the elongate axis. A centreline of the wedge may be aligned to the elongate axis. The tapered passageway may have a surface which is inclined to the elongate axis at substantially the same angle as the surface of the wedge.
The wedge, body and mounting member may be composed from a metal such as stainless steel or aluminium.
There may also be provided a method of assembling a suspension member of a cryogenic storage tank, the suspension member being configured to extend between a portion of an inner tank and a portion of an outer tank of the cryogenic storage tank, to thereby suspend a portion of the inner tank within the outer tank, wherein the method comprises a step of: arranging a plurality of fibres such that they are aligned along an elongate axis of the suspension member.
The method may include a step of attaching an attachment member to a first and / or second end of the fibres, wherein the attachment member preferably comprises a self-tightening attachment. The method may also include a step of attaching the self-tightening attachment by inserting the plurality of fibres through a mouth of a body of the attachment and into a tapered passageway, thereafter a wedge is inserted into an opposite end of the body, and is pressed towards the tapered passageway with the fibres arranged between the tapered passageway and the wedge.
There may also be provided a cryogenic storage tank comprising an inner tank and outer tank, wherein the inner tank is suspended within the outer tank by means of one or more suspension members which extend between the inner and outer tank, wherein the or each suspension member(s) comprise a plurality of fibres which are aligned along an elongate axis of the suspension member.
The inner and I or outer tank may be substantially cylindrical.
The or each suspension member(s) may be arranged to extend in a radial direction from the inner tank to the outer tank.
A first group of suspension members may extend from a first end of the inner tank to the outer tank. A second group of suspension members may extend from a second end of the inner tank to the outer tank. Alternatively, the second end of the inner tank is connected to the outer tank by means of a trunnion which extends from the inner tank into a trunnion support of the outer tank. The trunnion support and trunnion may be co-axial about the central axis of the cryogenic tank.
The first and / or second group may comprises three, four or more suspension members.
The suspension members may extend from proximate a central axis of the inner tank.
The suspension members may extend from a co-axial trunnion, which extends outwardly from the first and / or second end of the inner tank. The suspension members may extend from a side wall of the outer tank.
The cryogenic storage tank may be for storage of liquid at about 0 -100 Kelvin. The cryogenic storage tank may be for storage of liquid hydrogen or liquid helium. It will be appreciated that in use the tank may store fluid in liquid and gaseous states depending on the temperature and pressure.
The inner tank may be operable to store about 5 to 60 thousand litres of fluid. The inner tank may be about 2 to 12 metres in length and about 2 to 3 metres in diameter. The outer tank may be about 3 to 13 metres in length and about 2.25 to 3.25 metres in diameter.
There may also be provided a method of assembling a cryogenic storage tank comprising an inner tank and outer tank, wherein the method comprises arranging one or more suspension members to extend between the inner and outer tank to thereby suspend the inner tank within the outer tank, wherein the suspension members are assembled in accordance with a method of the present disclosure as herein described.
All of the features described herein may be combined with any of the above aspects, in any combination.
BRIEF DESCRIPTION OF THE DRAWINGS
For a better understanding of the apparatus and method present disclosure, and to show how examples of the same may be carried into effect, reference will now be made, by way of example, to the accompanying diagrammatic drawings in which: Figure 1 shows a perspective view of a suspension member of a cryogenic storage tank
according to an example of the present disclosure;
Figure 2 shows a close-up sectional view of part of the suspension member of figure 1; Figure 3 shows a perspective view of a cryogenic storage tank comprising the suspension members of figure 1, wherein a portion of an outer tank is cut away for illustrative purposes; Figure 4 shows a sectional view of part of an alternative suspension member to that shown in figure 1; Figure 5 shows a side view of the cryogenic storage tank of figure 3; and Figure 6 shows a side view of an end of the cryogenic storage tank of figure 3 comprising an alternative means for connecting an inner and outer tank of the cryogenic storage tank.
DETAILED DESCRIPTION OF THE EXEMPLARY EXAMPLES
Figures 1 and 2 show a suspension member 100 of a cryogenic storage tank 500 which is shown in later figures. The suspension member 100 has a first end 102 and second end 104 which are arrangeable to extend between an inner 510 and outer tank 520 of the cryogenic storage tank 500, thus supporting the inner tank within the outer tank, as will be discussed in more detail in the following.
However, initially considering the suspension member 100 in detail, there is provided a plurality of fibres 110 which are arranged such that they are aligned to each other along a central axis 106 to form a bundle 112.
In this example the bundle is substantially circular in cross-section, with a diameter of about 15mm, and an exposed length of about 300mm. However, it will be appreciated that the length will vary depending on the overall geometry of the cryogenic tank 500 the suspension member 100 is intended for use with. It will also be appreciated that a circular cross-section is not essential to the device of the present disclosure.
In this example there are approximately 1,000 to 1,000 million fibres in the bundle, with each fibre being substantially circular in cross-section and having a diameter of about 0.001mm to 0.1mm. It will be appreciated that fibres with a circular cross-section are not
essential to the device of the present disclosure.
The fibres 110 comprise a non-metallic material, which in this example is KevlarTM, although it will be appreciated that any other suitable material, such as a para-araniid, can be used.
Attachment means 200 in the form of a first 210 and second 220 attachment member are attached to respective first 114 and second 116 ends of the bundle. In this example the first and second attachment member 210, 220 comprise a self-tightening attachment, having a wedge and tapered passageway which are discussed in more detail in the following. However it will be appreciated that other suitable attachment means may be used.
As best seen in figure 2, the self-tightening attachment comprises a wedge 230 and tapered passageway 242, which extends through a body 240. The tapered passageway 242 is complimentary in shape to the wedge 230. In this particular example the wedge is conical in shape, although it will be appreciated that this is not essential to the device of the present disclosure, for instance, the wedge may be pyramid or frustoconical in shape. Accordingly, in this example the passageway 242 is conical such that it is complementary to the shape of the wedge. Both the wedge 230 and passageway 242 are arranged such that their centreline is aligned to the central axis 106.
The body 240 comprises a mouth 244, through which the fibres 110 of the bundle 112 extend into the passageway 242. The tapering of the wedge 230 is arranged such that the tip 232 of the wedge is closer to the mouth 244 than the rear face 234 of the wedge. The fibres extend around the wedge 230 such that they are positioned between the wedge 232 and the passageway. Due to friction between the fibres 110 and wedge 230, when a tensile force is applied to the fibres 110, the wedge is drawn towards the surface of the tapered passageway 242. This causes the wedge 232 to clamp the fibres against the surface of the passageway 242 such that the tensile force is resisted. Such an attachment of fibres is advantageous since tensile force in the fibres 110 can be uniformly transferred to the body 240 of the attachment member 210, 220. Furthermore, the attachment is easy to assemble and uses minimal material.
The diameter of the wedge 230 and tapered surface 242 are selected such that the fibres can be uniformly distributed between the wedge and tapered passageway. In this way the efficiency of the attachment member is maximised for a given weight. Consequently, less material can be used in the attachment member such that the rate at which the suspension member 100 transfers heat between the outer tank 520 and inner tank 510 is reduced.
In this example a portion of the body 240 distal from the mouth 244 is connected to a mounting member 300 by means of an axially adjustable attachment 310. The axially adjustable attachment 310 can be used to adjust the tension in the suspension member 100 when assembled on the cryogenic tank 500 by adjusting the axial length of the suspension member, and I or to adjust the axial length of the suspension member 100 prior to attachment to the tank 500.
In this example the axially adjustable attachment 310 comprises a female thread 312 on the mounting member 300 that is threadably engaged with a male thread 314 on the body 240. It will be appreciated that in other examples other attachment means can be provided, and, for example, the male thread can alternatively be on the mounting member and the female thread on the body.
Figure 4 shows an exemplary arrangement for providing axial adjustment of the suspension member. In this example a coupling 302 interconnects the body 240 and mounting member 300. The coupling 302 comprises a female right hand thread portion 304 and a female left hand thread portion 306. The female right hand thread portion 304 is threadably engaged with a male right hand thread 241, and the female left hand thread portion 306 is threadably engaged with a male left hand thread portion 301. Accordingly rotation of the coupling 302 causes the distance between the body 240 and mounting member 300 to increase or decrease depending on the direction of rotation. It will be appreciated that the arrangement shown in figure 4 could be applied to one or both ends of the suspension member.
A further attachment 320 is positioned on the mounting member 300 at an end distal from the axially adjustable attachment 310. The attachment 320 connects the suspension member 100 at the first end 102 to the inner tank 510.
The equivalent attachment 320 is also provided to connect the second end 104 to the outer tank 520. In this example the attachment 320, as best seen in figures 2, 3 and 5, comprises a slot 322 in the mounting member 300 configured to receive a plate 324 positioned on the inner or outer tank. The plate 324 is secured in the slot 322 by means of a pin 326 which is positioned in an aperture 328 which extends through the plate and slot. It will be appreciated that this is one example configuration of attachment, and that other suitable configurations may be used.
To assemble the suspension member 100, it will be appreciated that the fibres are arranged such that they are aligned along the axis 106 to form the bundle 112. Thereafter, the first end 114 of the bundle is inserted into the mouth 244 of the first attachment member 210.
The wedge 230 is next inserted into the passageway 242 from the distal end of the body 240.
The wedge 230 is pressed towards the tapered passageway 242 and the fibres 110 are arranged such that they are trapped, with a uniform distribution, between the wedge 230 and passageway 242. The body 240 and bundle 112 are retained under a nominal amount of tension such that the wedge 230 remains engaged upon the fibres 110 in the passageway 242. The above process can then be repeated for the second end 116 of the bundle 112.
The bodies 240A, B of the first 102 and second 104 end of the suspension member 100 are then attached to a first and second mounting member 300 by means of the associated axially adjustable attachments 310. The axially adjustable attachment 310 may then be used to set the desired length of the suspension member 100.
The assembled suspension member 100 is thereafter attached to the inner and outer tank. This is achieved by connecting the first end of the suspension member 100 to the inner tank 510 through a trunnion 514 by the attachment 320A, and connecting the second end of the suspension member 100 to the outer tank 520 by the attachment 320B. The process can be repeated such that a plurality of suspension members extend from the inner tank 510 to the outer tank 520, as shown in figures 3 and 5. In this example four suspension members 100 are shown, however it will be appreciated that any suitable number of suspension members 100 can be used.
In the example shown the first end 102 of the suspension member 100 is positioned at a first end 512 of the inner tank 510. The first end 102 comprises the trunnion 514, from which the plate 324A of the attachment 320 extends. The trunnion 514 is positioned co-axially to a central axis 502 of the cryogenic storage vessel 500 and extends outwardly from the inner tank 510. However, it will be appreciated that the suspension member may alternatively or additionally extend from the side wall of the inner tank 510.
In the example shown, and as best seen in figure 5, the second end 104 of the suspension member 100 is connected to a toroidal surface 522 formed between the side and end wall of the outer tank 520.More particularly, the plate 324B of the attachment 320 extends from the toroidal surface 522.
In the example shown the first end 512 of the inner tank 510 comprises a first group of suspension members 100. The second end 516 (not shown) may also comprise a second group of suspension members, which have the same/similar arrangement as those at the first end 512.
Alternatively, the second end 516 may be connected as shown in figure 6. In this example a trunnion 600 which extends outwardly from the second end 516, and is coaxial the central axis 502, is supported by a trunnion support 602 on the outer tank 520. An insulating member 604 is positioned between the trunnion 600 and trunnion support 602 to limit heat transfer.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The device and method of the present disclosure is not restricted to the details of the foregoing example(s). The device and method of the present disclosure extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims (34)

  1. CLAIMS1 A suspension member of a cryogenic storage tank, the suspension member being configured to extend between a portion of an inner tank and a portion of an outer tank of the cryogenic storage tank to thereby suspend a portion of the inner tank within the outer tank, wherein the suspension member comprises a plurality of fibres which are aligned along an elongate axis of the suspension member.
  2. 2 A suspension member as claimed in claim 1 wherein the fibres are aligned to the elongate axis of the suspension member.
  3. 3 A suspension member as claimed in claim 1 or claim 2 further comprising an attachment means suitable for attaching the fibres to the inner and outer tank.
  4. 4 A suspension member as claimed in claim 3 wherein the attachment means comprises a first and second attachment member, the first attachment member attaching a first end of the fibres to the inner tank, and the second attachment member attaching a second end of the fibres to the outer tank.
  5. A suspension member as claimed in claim 4 wherein the first and / or second attachment member comprises a self-tightening attachment.
  6. 6 A suspension member as claimed in claim 5 wherein the self-tightening attachment comprises a wedge and tapered passageway which is complimentary in shape to the wedge, wherein the fibres are arrangeable between the wedge and tapered passageway such that a tensile force applied to the fibres causes the wedge to be urged towards the tapered passageway.
  7. 7 A suspension member as claimed in claim 6, wherein the wedge and tapered passageway are configured such that the fibres can be uniformly distributed between the wedge and tapered passageway.
  8. 8 A suspension member as claimed in claim 6 or claim 7, wherein, the tapered passageway is formed through a body, the body having a mouth, through which the fibres are insertable into the tapered passageway.
  9. 9 A suspension member as claimed in claim 8, wherein the body is connectable to a mounting member by means of an axially adjustable attachment.
  10. A suspension member as claimed in claim 9, wherein the axially adjustable attachment comprises a threaded connection.
  11. 11 A suspension member as claimed in claim 9 or claim 10, wherein the axially adjustable attachment comprises a coupling threadably connectable to the body and mounting member, wherein the threadable connection comprises a first connection between the coupling and body having threads in a first direction, and a second connection between the coupling and mounting member having threads in a second direction.
  12. 12 A suspension member as claimed in any one of claims 9 to 11, wherein the mounting member is attachable to the inner or outer tank by means of a further attachment.
  13. 13 A suspension member as claimed in claim 12, wherein the further attachment comprises a plate on the mounting member or inner/outer tanks, the plate being insertable into a slot in the other of the mounting member or inner/outer tank, and being securable by a pin through an aperture that extends through both the slot and plate.
  14. 14 A suspension member as claimed in any one of the preceding claims, wherein the fibres comprise a non-metallic fibre, for example Kevlar or other suitable para-aramid.
  15. A suspension member as claimed in any one of the preceding claims, wherein the plurality of fibres are arranged in a bundle which is substantially circular in cross-section.
  16. 16 A suspension member as claimed in any one of claims 6 to 15, wherein the wedge is substantially conical or frustoconical in shape, and a centreline of the wedge is aligned to the elongate axis.
  17. 17 A suspension member as claimed in any one of claims 6 to 16, wherein the tapered passageway has a surface which is inclined to the elongate axis at substantially the same angle as the surface of the wedge.
  18. 18 A method of assembling a suspension member of a cryogenic storage tank, the suspension member being configured to extend between a portion of an inner tank and a portion of an outer tank of the cryogenic storage tank, to thereby suspend a portion of the inner tank within the outer tank, wherein the method comprises a step of: arranging a plurality of fibres such that they are aligned along an elongate axis of the suspension member.
  19. 19 A method as claimed in claim 18, wherein the method includes a step of attaching an attachment member to a first and / or second end of the fibres, wherein the attachment member comprises a self-tightening attachment.
  20. A method as claimed in claim 19, wherein the method includes a step of attaching the self-tightening attachment by inserting the plurality of fibres through a mouth of a body of the attachment and into a tapered passageway, thereafter a wedge is inserted into an opposite end of the body, and is pressed towards the tapered passageway with the fibres arranged between the tapered passageway and the wedge.
  21. 21 A cryogenic storage tank comprising an inner tank and outer tank, wherein the inner tank is suspended within the outer tank by means of one or more suspension members which extend between the inner and outer tank, wherein the or each suspension member(s) comprise a plurality of fibres which are aligned along an elongate axis of the suspension member.
  22. 22 A cryogenic storage tank as claimed in claim 21, wherein the inner and I or outer tank are substantially cylindrical.
  23. 23 A cryogenic storage tank as claimed in claim 21 or claim 22, wherein the or each suspension member(s) are arranged to extend in a radial direction from the inner tank to the outer tank.
  24. 24 A cryogenic storage tank as claimed in claim 23, wherein a first group of suspension members extend from a first end of the inner tank to the outer tank.
  25. A cryogenic storage tank as claimed in claim 23 or claim 24, wherein a second group of suspension members extend from a second end of the inner tank to the outer tank.
  26. 26 A cryogenic storage tank as claimed in claim 25, wherein the second end of the inner tank is connected to the outer tank by means of a trunnion which extends from the inner tank into a trunnion support of the outer tank.
  27. 27 A cryogenic storage tank as claimed in claim 26, wherein the trunnion support and trunnion are co-axial about the central axis of the cryogenic tank.
  28. 28 A cryogenic storage tank as claimed in any one of claims 21 to 27, wherein the suspension members extend from proximate a central axis of the inner tank.
  29. 29 A cryogenic storage tank as claimed in any one of claims 21 to 28, wherein the suspension members extend from a co-axial trunnion, which extends outwardly from the first and! or second end of the inner tank.
  30. A cryogenic storage tank as claimed in claim 21 to 29, wherein the suspension members extend from a side wall of the outer tank.
  31. 31 A method of assembling a cryogenic storage tank comprising an inner tank and outer tank, wherein the method comprises arranging one or more suspension members to extend between the inner and outer tank to thereby suspend the inner tank within the outer tank, wherein the suspension members are assembled in accordance with the method of claims 18 to 20.
  32. 32 A suspension member of a cryogenic storage tank substantially as hereinbefore described and!or as shown in the accompanying drawings.
  33. 33 A method of assembling a suspension member of a cryogenic storage tank, substantially as hereinbefore described and!or as shown in the accompanying drawings.
  34. 34 A cryogenic storage tank substantially as hereinbefore described and/or as shown in the accompanying drawings.A method of assembling a cryogenic storage tank substantially as hereinbefore described and/or as shown in the accompanying drawings.Amendments to the claims have been filed as followsCLAIMS1 A suspension member of a cryogenic storage tank, the suspension member being configured to extend betweon a portion of an innor tank and a portion of an outer tank of tho cryogenic storage tank to thereby suspond a portion of the inner tank within the outor tank, wherein the suspension member comprises a plurality of fibres which are aligned along an elongate axis of the suspension member; a first attachment member for attaching a first end of the fibres to the inner tank, and a socond attachment member for attaching a second end of the fibres to the outer tank.2 A suspension member as claimed in claim I wherein the first and / or second attachment member comprises a self-tightening attachment.3 A suspension member as claimed in claim 2 wherein the self-tightening attachment comprises a wedge and tapered passageway which is complimentary in shape to the wedge, wherein the fibres are arrangeable between the wedge and tapered passageway such that a tensile force applied to the fibres causes the wedge to be urged towards the tapered passageway.4 A suspension member as claimed in claim 3, wherein the wedge and tapered passageway are configured such that the fibres can be uniformly distributed between the wedge and tapered (\J passageway.A suspension member as claimed in claim 3 or claim 4, wherein, the tapered passageway is formed through a body, the body having a mouth, through which the fibres are insertable into the tapered passageway.6 A suspension member as claimed in claim 5, wherein the body is connectable to a mounting member by means of an axially adjustable attachment.7 A suspension member as claimed in claim 6, wherein the axially adjustable attachment comprises a threaded connection.8 A suspension member as claimed in claim 6 or claim 7, wherein the axially adjustable attachment comprises a coupling threadably connectable to the body and mounting member, wherein the threadable connection comprises a first connection between the coupling and body having threads in a first direction, and a second connection between the coupling and mounting member having threads in a second direction.9 A suspension member as claimed in any one of claims 6 to 8, wherein the mounting member is attachable to the inner or outer tank by means of a further attachment.A suspension member as claimed in claim 9, wherein the further attachment comprises a plate on the mounting member or inner/outer tanks, the plate being insertable into a slot in the other of the mounting member or inner/outer tank, and being securable by a pin through an aperture that extends through both tho slot and plato.11 A susponsion mombor as claimod in any one of claims 3 to 10, whorcin tho wodgo is substantially conical or frustoconical in shape, and a centreline of the wedge is aligned to the elongate axis.12 A susponsion mombor as claimod in any one of claims 3 to 10, whorcin tho taporod passagoway has a surface which is inclined to the elongate axis at substantially the same angle as the surface of the wedge.13 A suspension mombor as claimed in any one of thc procoding claims, whoroin tho fibros comprisc a non-mctallic fibre.14 A suspension member as claimed in any one of the preceding claims, wherein the plurality of fibres are arranged in a bundle which is substantially circular in cross-section.A method of assembling a suspension member of a cryogenic storage tank, the suspension member being configured to oxtend botwcon a portion of an inner tank and a portion of an outor tank of the cryogenic storage tank, to thoroby suspend a portion of tho innor tank within tho outer tank, wherein the method comprises the steps of: arranging a plurality of fibros such that thoy arc alignod along an olongato axis of the suspension member; (4 attaching a first attachment member, for attaching a first end of the fibres to the inner tank, to a first end of the fibres; and attaching a second attachment member, for attaching a second end of the fibres to the outor tank, to a socond ond of tho fibros.16 A method as claimod in claim 15, whoroin at loast ono of tho attachment mombors comprises a self-tightening attachment.17 A method as claimed in claim 16, wherein the method includes a step of attaching the self-tightoning attachmont by inserting tho plurality of fibres through a mouth of a body of the attachment and into a tapered passageway, thereafter a wedge is inserted into an opposite end of the body, and is pressed towards the tapered passageway with the fibres arranged between the taporod passagoway and tho wodgo.18 A cryogonic storago tank comprising an innor tank and outor tank, wherein the inner tank is suspended within the outer tank by means of one or more suspension members which extend between the inner and outer tank, whoroin the or oach susponsion mombor comprises a plurality of fibres which are aligned along an elongate axis of the suspension member; a first attachmont mombor for attaching a first ond of the fibros to the innor tank; and a socond attachmont mombor for attaching a socond ond of tho fibros to tho outer tank.19 A cryogenic storago tank as claimod in claim 18, wherein tho inner and / or outor tank aro substantially cylindrical.A cryogenic storage tank as claimed in claim 18 or claim 19, wherein the or each suspension member(s) are arranged to extend in a radia direction from the inner tank to the outer tank.21 A cryogenic storage tank as claimod in claim 20, wherein a first group of suspension mombors oxtond from a first ond of tho inner tank to tho outor tank.22 A cryogenic storage tank as claimed in claim 20 or claim 21, wherein a second group of suspension members extend from a second end of the inner tank to the outer tank.23 A cryogcnic storago tank as claimed in claim 22, wherein the second cnd of tho inncr tank is connectod to tho outor tank by moans of a trunnion which oxtcnds from the innor tank into a trunnion support of the outer lank.24 A cryogenic storage tank as claimod in claim 23, whoroin tho trunnion support and trunnion arc co-axial about the central axis of the cryogenic tank. (4A cryogenic storage tank as claimed in any one of claims 18 to 24, wherein the suspension members extend from proximate a central axis of the inner tank.26 A cryogenic storage tank as claimed in any one of claims 18 to 25, wherein the suspension mombors oxtond from a co-axial trunnion, which oxtonds outwardly from the first and / or socond ond of tho innor tank.27 A cryogenic storage tank as claimed in claim 18 to 26, wherein the suspension members extend from a side wall of the outer tank.28 A method of assembling a cryogonic storago tank comprising an inner tank and outer tank, wherein the method comprises arranging one or more suspension members to extend between the inner and outor tank to thoroby suspond tho nnor tank within tho outor tank, wherein tho suspension mombors arc assomblod in accordanco with tho mothod of claims 15 to 17.29 A suspension member of a cryogenic storage tank substantially as hereinbefore described and/or as shown in tho accompanying drawings.A method of assembling a suspension member of a cryogenic storage tank, substantially as hereinbefore described and/or as shown in the accompanying drawings.31 A cryogenic storage tank substantially as hercinbefore describod and/or as shown in the accompanying drawings.32 A method of assembling a cryogenic storage tank substantially as hereinbefore described andlor as shown in the accompanying drawings. aD (4
GB1315482.8A 2013-08-30 2013-08-30 Storage tank suspension member and storage tank for storage of cryogenic liquid Expired - Fee Related GB2517746B (en)

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GB1315482.8A GB2517746B (en) 2013-08-30 2013-08-30 Storage tank suspension member and storage tank for storage of cryogenic liquid
EP14182661.0A EP2843290A3 (en) 2013-08-30 2014-08-28 Storage tank suspension member and storage tank for storage of cryogenic liquid

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GB1315482.8A GB2517746B (en) 2013-08-30 2013-08-30 Storage tank suspension member and storage tank for storage of cryogenic liquid

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GB2517746A true GB2517746A (en) 2015-03-04
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249352A (en) * 1978-05-16 1981-02-10 Preload Technology, Inc. Earthquake resistant tank
US4300354A (en) * 1979-02-01 1981-11-17 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Suspension system for a low temperature tank
US5012948A (en) * 1989-06-21 1991-05-07 General Dynamics Corporation, Convair Division Support arrangement for a space based cryogenic vessel
US5140823A (en) * 1989-05-12 1992-08-25 Spectrospin Ag Cryostat
EP1395774A1 (en) * 2001-06-13 2004-03-10 Linde Aktiengesellschaft Storage container for cryogenic media
EP1564477A1 (en) * 2004-02-11 2005-08-17 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Spacer
US20070068954A1 (en) * 2005-09-26 2007-03-29 Rainer Immel Suspended liquid hydrogen storage tank

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DE2610915A1 (en) * 1976-03-16 1977-09-22 Artur Rudolf ELEMENT FOR INTRODUCING TENSIONING FORCE IN FIBER-REINFORCED PLASTIC PARTS
CH640973A5 (en) * 1978-06-02 1984-01-31 Micafil Ag Method for producing an insulating rod, which is resistant to tension, compression and torsion and has attachment fittings, and a device for carrying out the method
GB8500495D0 (en) * 1985-01-09 1985-02-13 Oxford Magnet Tech Epoxy bonded glass fibre rods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249352A (en) * 1978-05-16 1981-02-10 Preload Technology, Inc. Earthquake resistant tank
US4300354A (en) * 1979-02-01 1981-11-17 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Suspension system for a low temperature tank
US5140823A (en) * 1989-05-12 1992-08-25 Spectrospin Ag Cryostat
US5012948A (en) * 1989-06-21 1991-05-07 General Dynamics Corporation, Convair Division Support arrangement for a space based cryogenic vessel
EP1395774A1 (en) * 2001-06-13 2004-03-10 Linde Aktiengesellschaft Storage container for cryogenic media
EP1564477A1 (en) * 2004-02-11 2005-08-17 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Spacer
US20070068954A1 (en) * 2005-09-26 2007-03-29 Rainer Immel Suspended liquid hydrogen storage tank

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EP2843290A2 (en) 2015-03-04
GB201315482D0 (en) 2013-10-16
GB2517746B (en) 2016-09-14
EP2843290A3 (en) 2015-10-28

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Effective date: 20200830