US3861553A - Means for supporting an inner membranous vessel of a low temperature liquefied gas tank of a membrane type - Google Patents

Means for supporting an inner membranous vessel of a low temperature liquefied gas tank of a membrane type Download PDF

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Publication number
US3861553A
US3861553A US306581A US30658172A US3861553A US 3861553 A US3861553 A US 3861553A US 306581 A US306581 A US 306581A US 30658172 A US30658172 A US 30658172A US 3861553 A US3861553 A US 3861553A
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US
United States
Prior art keywords
vessel
outer vessel
suspension
heat insulating
insulating layer
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.)
Expired - Lifetime
Application number
US306581A
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English (en)
Inventor
Katsuro Yamamoto
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.)
Eneos Globe Corp
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Eneos Globe Corp
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Publication date
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Publication of US3861553A publication Critical patent/US3861553A/en
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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
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/081—Mounting arrangements for vessels for large land-based storage vessels
    • 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
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0136—Terminals
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/901—Liquified gas content, cryogenic
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/902—Foam

Definitions

  • ABSTRACT Means for. supporting an inner membranous vessel of a low temperature liquified gas tank of a membrane type including an outer vessel of apressure resisting structure, a heat insulating layer provided at the inside of the outer vessel and-the inner membranous vessel provided further at the inside of the heat insulatinglayer, said inner vessel being formed as a bag having a flat bottom portion and side wall portions connected to said bottom'portion via curvededge portions, comprising an annular reinforcing member provided at an upper edge portion of said bag, a plurality of suspension means slidably passing through a roof portion of the outer vessel, and a plurality of counter-weight means provided at the outside of the outer vessel, said suspension means each being connected with said annular reinforcing member at one end thereof and connected with one of saidv counter weight means at the other end thereof, whereby the counter-weight means are isolated from the low temperature of the low temperature liquified gases resulting in a low manufacturing cost of the tank as well as are readily exposed for inspection regardless of
  • This invention relates to a means for supporting an inner membranous vessel of a tank for, storing low temperature liquefied gases such as methane, oxygen, ammonia, propane, etc., which are in a gaseous state at room temperature and are liquefied by being cooled down beyond their boiling points under atmospheric pressure.
  • a tank of this kind comprises an outer vessel of a pressure resisting structure, a heat insulating layer provided at the inside of the outer vessel and an inner membraneous vessel provided further at the inside of the heat insulating layer, said inner vessel being formed of a thin plate and adapted to be readily expanded by the internal pressure applied by the liquefied gases loaded therein to come in close contact with the inside surface of the heat insulating layer, whereby the internal pressure is transmitted to theouter vessel via the heat insulating layer to be supported by the outer vessel.
  • the inner vessel In the tank of the abovementioned membranous structure, since the inner vessel can not stand by itself, it is suspended at its upper portions or clamped by bolts so that it does not fall down due to its own gravity.
  • the inner vessel makes complicated deformationswhen it goes through various conditions from a room temperature unloaded condition to a low temperature loaded condition via a low temperature unloaded conditionor vice versa, and therefore, it is unfavorable to give a restriction to the inner vessel such as to preventtheabovementioneddeformations, because stress concentrations will be caused by giving such a restriction.
  • - v v Therefore, the inner vessel must be so constituted as .to be able to make deformations according to the con- .must be made ofexpensive-low temperature resisting materials and at the same time results in a complicated structure, whereby there is a drawback that the overall manufacturing cost of the tank is unfavorably increased.
  • the suspension mechanism for the inner vessel has gone wrong, there is a danger that the mechanism restricts deformations of the inner vessel and as a result causes breakage of the inner vessel. Therefore, it is desirable that the suspension mechanism is in such a condition that the operation thereof can always be checked. In this connection, if the suspension mechanism is provided at the inside of the outer vessel, there is a drawback that the mechanism can not be readily checked of its operation.
  • the inner membranous vessel formed 'as a bag having a flat bottom portion and side wall portions connected to said bottom portion via curved edge portions can be readily deformed to come in uniform and closecontact with the inside surface of the heat insulating layer under the application of an internal hydraulic pressure when'it has been properly'susp'ended at its upper edge portion where it is reinforced by an annular reinforcing member.
  • the upperedge portion of the inner vessel is supported by such suspension means that are slidably passing through an upper wall or roof portion of the outer vessel and are supported at their upper ends bycounter-weight means which can provide a substantiallyconstant and stable suspension force ad-- justed to hold the innermembranous vessel in a most favorably self-standing condition such, that there is caused no over-stressing due to an over-suspension or no buckling of theinner.
  • membranous vessel due to an roof portion of the tank is simplified and it is avoided that the volume of the outer vessel is increased for housing the counter-weight means.
  • gas seal means is provided at the outside of the outer vessel where it is almost at atmospheric temperature
  • sealing means made of inexpensive common materials and having a simple structure can be employed.
  • the tank herein shown has an outer vessel 1 of a pressure resisting structure, a heat insulating layer 2 of a compression resisting structure provided at the inside of the outer vessel and an inner vessel 3 of a membranous structure made ofa thin plate of a low temperature resisting material such as nickel steel, stainless steel or aluminum.
  • the inner membranous vessel 3 is formed as a bag having a flat bottom portion 3a and side wall portions 3b connected to the bottom portion via curved edge portions 3c.
  • the side wall portions 3b of the inner vessel are extending upward until the upper ends thereof reach a level adjacent the upper ends of the side wall portions of the heat insulating layer 2 or the joining portions of side wall portions la and roof portion lb of the outer vessel.
  • the heat insulating layer 2 may be formed of a heat insulating material having by itself compression resisting characteristics such as hard polyurethane foam or may be formed of an assembled structure including, for example, wooden frames, the spaces left therein being filled with pulverized pearlite so that the assembled structure has compression resisting characteristics as a whole.
  • roof portion 2a of the heat insulating layer 2 may be made of heat insulating materials having no compression resisting characteristics such as glass wool or polyurethane, since the roof portion does not subject to any substantial load.
  • the upper end portion of the inner vessel 3 is reinforced by an annular reinforcing member 4 firmly fixed thereto.
  • the pole 5 has a pivot bearing 6 at its upper end, where a lever 7 is pivotally mounted.
  • a suspension means 8 such as a wire, which is extending downward through a pipe P mounted to penetrate the roof portion lb of the outer vessel androof portion 2a of the heat insulating layer and adapted to provide a passage for suspension means.
  • the lower end of the suspension means is connected to the annular reinforcing member 4 fixed to the inner vessel.
  • the weight 9 is adjusted to provide such a suspension force that can hold the inner membranous vessel in a self-standing condition with no over-stressing due to an over-suspension but with no danger of causing buckling due to an insufficient suspension, while allowing relatively free deformations of the inner membranous vessel to avoid stress concentration.
  • a flexible seal member 10 such as a bellows made of a synthetic rubber to keep the gastightness of the outer vessel while allowing free movement of the suspension means through the pipe P according to the expansion or contraction of the inner vessel due to changes of temperature and/or load.
  • the counter-weight mechanism comprising the pole 5, pivot bearing 6, lever 7, weight 9, etc. is housed in a trunk 11 closed with a cover plate 12 to be protected from the weather.
  • the counter-weight mechanism can be exposed for inspection any time when required by removing the cover plate 12, even when the tank is filled with low temperature liquefied gases without opening the inside of the tank to the atmosphere.
  • the inside space of the trunk 11 may be filled with inert gases such as nitrogen for the purpose of safety.
  • the space confined by the trunk 11 and the cover plate 12 may be kept gas-tight.
  • the passage in the pipe P is first closed from outside via a proper remote control means, and then the evaporated gases filling the space in the trunk 11 are replaced by inert gases, before the cover plate 12 is removed.
  • a device for supporting an inner membranous vessel of a low temperature liquefied gas tank of the mem-- brane type including an outer vessel having a pressureresisting structure, said outer vessel provided with a roof portion, a heat insulating layer provided at the inside of the outer vessel and the inner membranous vessel provided inside of the heat insulating layer, said inner vessel being formed as a bag having a flat bottom portion and side wall portions which are connected to said bottom portion by curved edge portions, said device for supporting the inner membranous vessel comprising an annular reinforcing member provided at an upper edge portion of said bag, a plurality of suspension means slidably passing through the roof portion of the outer vessel, and a plurality of counter-weight means, each being housed in a trunk containing a cover plate and provided at the outside of the outer vessel, each of saidsuspension means being connected at one end thereof with said annular reinforcing member and at the other end thereof with one of said counterweight means.
  • a device for supporting an inner membranous vessel of a low temperature liquefied gas tank of the membrane type including an outer vessel having a pressureresisting structure, said outer vessel provided with a roof portion, a heat insulating layer provided at the inside of the outer vessel and the inner membranous vessel provided inside of the heat insulating layer, said inner vessel being formed as a bag which substantially conforms to the inside surface of .the heat insulating layer, said device for supporting the inner membranous vessel comprising 'an annular reinforcing member provided at the upperedge portion of said bag, and a plurality of suspension systems housed in a trunk containing a cover plate and provided at the roof portion ofthe and the other end of the lever being connected to the counterweight.
  • a pipe extends through the roof portion of the outer vessel and the roof portion of the heat insulating layer to provide a passage for receiving the suspension means.
  • the flexible seal is a bellows made of a synthetic rubber to maintain the gas-tightness of the outer vessel while allowing free movement of the suspension means through the pipe according to the expansion. or contraction of the inner vessel due to changes in temperature and/orload.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US306581A 1971-11-24 1972-11-15 Means for supporting an inner membranous vessel of a low temperature liquefied gas tank of a membrane type Expired - Lifetime US3861553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46094212A JPS5136891B2 (en(2012)) 1971-11-24 1971-11-24

Publications (1)

Publication Number Publication Date
US3861553A true US3861553A (en) 1975-01-21

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US (1) US3861553A (en(2012))
JP (1) JPS5136891B2 (en(2012))
FR (1) FR2161070B1 (en(2012))
GB (1) GB1357237A (en(2012))
IT (1) IT972293B (en(2012))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625478A (en) * 1981-12-17 1986-12-02 Goode John T Liner for tower silo and method of installing same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5185513A (ja) * 1975-01-27 1976-07-27 Koyo Iron Works & Constr Menburenshikiteionekikagasuchozotankuno naisokensuisochi
GB2211313A (en) * 1987-10-14 1989-06-28 Brother Ind Ltd Exposure apparatus

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050686A (en) * 1935-04-18 1936-08-11 John H Wiggins Gas and liquid storage device
US2408539A (en) * 1944-01-27 1946-10-01 John H Wiggins Fluid storage apparatus
US2944452A (en) * 1959-04-10 1960-07-12 Moore Drop Forging Company Chain link pipe wrench with plural handle-saw surfaces
US3085708A (en) * 1960-12-19 1963-04-16 Conch Int Methane Ltd Membrane type storage tank
US3101861A (en) * 1960-08-17 1963-08-27 Exxon Research Engineering Co Vessel for transporting low temperature liquids
US3158459A (en) * 1960-03-22 1964-11-24 & Chantiers De La Seine Mariti Self-discharging container for conveying and storing low temperature fluids or othermaterials
US3267685A (en) * 1965-03-03 1966-08-23 Continental Oil Co Container for storing liquids at low temperatures
US3352443A (en) * 1965-12-15 1967-11-14 Chicago Bridge & Iron Co Internal suspended insulating ceiling for storage tanks
US3570700A (en) * 1968-11-20 1971-03-16 Bridgestone Liquefied Petroleu Low temperature liquefied gas storage tank
US3622030A (en) * 1968-11-15 1971-11-23 Bridgestone Liquefied Gas Co Tank for use in storing low-temperature liquefied gas
US3712500A (en) * 1971-08-06 1973-01-23 Preload Eng Co Liner for cryogenic container

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050686A (en) * 1935-04-18 1936-08-11 John H Wiggins Gas and liquid storage device
US2408539A (en) * 1944-01-27 1946-10-01 John H Wiggins Fluid storage apparatus
US2944452A (en) * 1959-04-10 1960-07-12 Moore Drop Forging Company Chain link pipe wrench with plural handle-saw surfaces
US3158459A (en) * 1960-03-22 1964-11-24 & Chantiers De La Seine Mariti Self-discharging container for conveying and storing low temperature fluids or othermaterials
US3101861A (en) * 1960-08-17 1963-08-27 Exxon Research Engineering Co Vessel for transporting low temperature liquids
US3085708A (en) * 1960-12-19 1963-04-16 Conch Int Methane Ltd Membrane type storage tank
US3267685A (en) * 1965-03-03 1966-08-23 Continental Oil Co Container for storing liquids at low temperatures
US3352443A (en) * 1965-12-15 1967-11-14 Chicago Bridge & Iron Co Internal suspended insulating ceiling for storage tanks
US3622030A (en) * 1968-11-15 1971-11-23 Bridgestone Liquefied Gas Co Tank for use in storing low-temperature liquefied gas
US3570700A (en) * 1968-11-20 1971-03-16 Bridgestone Liquefied Petroleu Low temperature liquefied gas storage tank
US3712500A (en) * 1971-08-06 1973-01-23 Preload Eng Co Liner for cryogenic container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625478A (en) * 1981-12-17 1986-12-02 Goode John T Liner for tower silo and method of installing same

Also Published As

Publication number Publication date
GB1357237A (en) 1974-06-19
JPS5136891B2 (en(2012)) 1976-10-12
FR2161070A1 (en(2012)) 1973-07-06
JPS4858408A (en(2012)) 1973-08-16
FR2161070B1 (en(2012)) 1975-11-07
IT972293B (it) 1974-05-20

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