EP0915284B1 - Wärmedämmung für einen Kugeltank - Google Patents

Wärmedämmung für einen Kugeltank Download PDF

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Publication number
EP0915284B1
EP0915284B1 EP99100930A EP99100930A EP0915284B1 EP 0915284 B1 EP0915284 B1 EP 0915284B1 EP 99100930 A EP99100930 A EP 99100930A EP 99100930 A EP99100930 A EP 99100930A EP 0915284 B1 EP0915284 B1 EP 0915284B1
Authority
EP
European Patent Office
Prior art keywords
covering
heat
insulating
spherical tank
insulation
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
EP99100930A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0915284A1 (de
Inventor
Fritz Höppner
Heino Gustävel
Peter Schröder
Walter Bremeyer
Hans-Jürgen Kück
Holger Rhode
Joachim Poblotzki
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.)
Kaefer Isoliertechnik GmbH and Co KG
Original Assignee
Kaefer Isoliertechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kaefer Isoliertechnik GmbH and Co KG filed Critical Kaefer Isoliertechnik GmbH and Co KG
Publication of EP0915284A1 publication Critical patent/EP0915284A1/de
Application granted granted Critical
Publication of EP0915284B1 publication Critical patent/EP0915284B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
    • 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge with provision for thermal insulation
    • 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
    • F17C2203/0358—Thermal insulations by solid means in form of panels
    • 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

Definitions

  • the invention relates to thermal insulation according to the generic term of expression 1.
  • the invention relates primarily to thermal insulation for spherical tanks, such as them on board ships for the transport of cryogenic goods Liquids such as liquefied petroleum gas are used become.
  • This spherical tank is supported on an annular, approximately in the equatorial plane with the Ball tank welded tank farm, which also as Apron is called.
  • An isolation technology The problem here is the transition from the insulating covering upper hemisphere to lower hemisphere. To in this The insulating covering is to avoid cold spots the upper hemisphere into the area of the apron continued.
  • Fittings made of insulating material attached. This Fittings ensure an insulating transition to the Insulation covering the lower hemisphere.
  • slats are at their top edge Blocks glued, which in turn firmly attached to the fittings are connected. On the opposite lower edge the slats are glued to further blocks that in turn firmly with the upper edge of the insulating covering the lower hemisphere.
  • the slats themselves are made of flexible insulating material. Several these slats are an insulation package stacked on top of each other.
  • the invention is based on the problem, a Relative displacement between the fittings and the upper edge of the insulating covering of the lower hemisphere allowing mechanical protection and such Gas seal through structurally simpler means enable.
  • Ball tanks are primarily used to transport cryogenic goods Liquids such as LPG on board Ships. They usually have a diameter of about 40 m. When empty, this corresponds to Internal temperature of the tanks to the ambient temperature or a significantly higher temperature than theirs Operating temperatur.
  • the tanks are filled with liquefied gas filled, the internal temperature is at the boiling point of the respective liquid gas in the prevailing in the spherical tank Pressure (operating temperature).
  • the Ball tank In the unfilled, warm (assembly) state, the Ball tank roughly a spherical shape. In the cold, filled (operating) state, the ball tank pulls easily together. Judging from a usual one Ball tank diameter of 40 m, so the migrates Tank wall 10 in the area of the equatorial plane by about 90 mm in the operating state compared to the assembled state Inside.
  • the ball tank is supported to a certain extent Height range through a circular tank farm. This is commonly called apron 11.
  • the Apron 11 is in the area of the equatorial plane with the Tank wall 10 firmly connected.
  • the ball tank For absorbing cryogenic liquids, for example of liquid gas, the ball tank must of course have very good thermal insulation. Both one are lower and an upper hemisphere of the spherical tank for this purpose with an insulating covering 12 or 13 Mistake.
  • the insulating coverings 12, 13 are made prefabricated panels 14 assembled. The panels 14 are in rows on top of each other and staggered in rows arranged to each other. The formed from the panels 14 Insulating coverings 12, 13 are known per se and not Subject of the invention.
  • a special The isolation problem is the transition from that Isolierbelag the upper hemisphere to Isolierbelag 13 der lower hemisphere in the area of the apron 11.
  • the Insulating covering 12 of the upper hemisphere is for this purpose led into the area of the apron 11.
  • On the Moldings 15 are attached to the inside of the apron 11.
  • On the opposite to the fittings 15 The bottom of the apron 11 is the lowest Row of panels 14 of the insulating covering 12 of the upper Hemisphere. As a result, a heat flow through the Apron 11 reduced to the desired size.
  • the panels 14 are fixed on the tank wall 10 appropriate. Because of the above temperature-related displacement of the tank wall 10 the upper edge of the insulating covering 13 also migrates lower hemisphere about 90 mm inwards (starting from a tank diameter of 40 m). The apron 11 and with but the fittings 15 remain in theirs Assembly condition. This relative shift between the Fittings 15 and the upper edge of the insulating covering 13 the lower hemisphere must go through thermal insulation be balanced. At the same time, no one is allowed here Insulation weak point.
  • Block 16 is on the bottom the moldings 15 a block 16 attached.
  • Block 16 is particularly firmly bonded to the fittings 15 connected.
  • On the top row of panels 14 of the Insulating covering 13 of the lower hemisphere is a block 17 arranged and, like the panels 14, with a Fastening bolt 18 attached to the ball tank.
  • On the Block 17 is a block 20 attached.
  • a seal 24 is arranged within the gap 21.
  • This seal 24 is made of a material that is (cryo-) flexible even under the operating temperatures prevailing on the ball tank.
  • the seal 24 is made from a ployimide foam that has a low density (about 10 kg / m 3 ). This material has a high flow resistance and remains elastic even at temperatures down to -196 ° C. At these low temperatures, polyimide foam is also sufficiently permanently elastic.
  • An alternative material would be mineral wool.
  • the seal 24 is within a groove 25 in the block 20th arranged.
  • the seal 24 elastically deformed and presses against the lower wall of block 16.
  • the undeformed state is in FIG. 2 indicated by dashed lines.
  • the seal 24 slides during the temperature shifts on the lower wall of the Blocks 16.
  • the lower wall of block 16 with a film with good sliding properties, for example, an aluminum composite film, laminated.
  • the size of the gap 21 is chosen so that it is under remains open in all operating states. This will avoided that tensions between the fittings 15 or blocks 16 and blocks 17 and 20 respectively become. Only the seal 24 slides on the block 16.
  • 1 and 2 is a cover 26 recognizable.
  • This cover is on the one hand Fittings 15, namely on the lower wall, and on the other hand on the insulating covering 13 of the lower hemisphere, namely attached to block 17.
  • On the lower wall the fittings 15 and the outer wall of the block 17 for this purpose plywood panels 27, 28 glued on.
  • On these plywood panels 27, 28 are in the drawing Unscrewed sheet metal angle screwed into the the cover 26 on its lower or upper edge is glued.
  • the cover 26 itself is from individual, in the circumferential direction of the spherical tank successive cover slats 31 are formed.
  • the cover slats 31 are also through one another the elastic sealant glued together.
  • the elastic sealing compound takes up compressions or Strains within cover 26 as a result of Temperature shift on.
  • the cover slats 31 are formed in two layers, namely made of a flexible polystyrene, which is covered with a thin aluminum sheet 32 is laminated.
  • the Aluminum sheet 32 preferably has a thickness of 0.3 mm on.
  • the aluminum sheet 32 is used in the present case on the one hand as a vapor barrier and on the other hand as mechanical protection.
  • the cover plate 31 from the flexible polystyrene in turn has certain thermal insulation properties.
  • Main task of the cover 26 is the following:
  • the Ball tank namely its tank wall 10
  • purge gas Inert gas
  • the purging gas is activated by an inlet in a space between the insulating coverings 12, 13 and the tank wall 10 is pumped in and passes through one Leaves again, in the area of which there are gas detectors are located. 1 and 2.
  • Such a space is recognizable as an annular gap 33.
  • the ring gap 33 prevails an internal pressure increased against the ambient pressure, the through the gap 21 between block 16 and block 20 could escape. This would also be the case with the seal 24 can hardly be prevented.
  • the increasing gap 21 and the seal 24 are taken individually good means to the exit of cold gas due to convection from the annular gap 33 in to prevent the annulus 34.
  • the best effect will be by a combination of increasing gap 21 and the Seal 24 achieved. For example, have experiments result in the following:
EP99100930A 1997-01-31 1997-10-18 Wärmedämmung für einen Kugeltank Expired - Lifetime EP0915284B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19703591A DE19703591A1 (de) 1997-01-31 1997-01-31 Wärmedämmung für einen Kugeltank
DE19703591 1997-01-31
EP97118133A EP0857912B1 (de) 1997-01-31 1997-10-18 Wärmedämmung für einen Kugeltank

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP97118133A Division EP0857912B1 (de) 1997-01-31 1997-10-18 Wärmedämmung für einen Kugeltank
EP97118133.4 Division 1997-10-18

Publications (2)

Publication Number Publication Date
EP0915284A1 EP0915284A1 (de) 1999-05-12
EP0915284B1 true EP0915284B1 (de) 2001-08-22

Family

ID=7818920

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99100930A Expired - Lifetime EP0915284B1 (de) 1997-01-31 1997-10-18 Wärmedämmung für einen Kugeltank
EP97118133A Expired - Lifetime EP0857912B1 (de) 1997-01-31 1997-10-18 Wärmedämmung für einen Kugeltank

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97118133A Expired - Lifetime EP0857912B1 (de) 1997-01-31 1997-10-18 Wärmedämmung für einen Kugeltank

Country Status (7)

Country Link
EP (2) EP0915284B1 (pt-PT)
JP (1) JP3223248B2 (pt-PT)
KR (1) KR100254848B1 (pt-PT)
DE (3) DE19703591A1 (pt-PT)
ES (2) ES2163311T3 (pt-PT)
NO (2) NO310743B1 (pt-PT)
PT (2) PT857912E (pt-PT)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7136482U (de) * Kaefer Ges Mbh Isolierung für Behälter mit tiefer Innenraumtemperatur
DE490095C (de) * 1926-05-12 1930-01-25 Gruenzweig & Hartmann G M B H Isoliermantel fuer grossraeumige Gefaesse
US3109206A (en) * 1958-06-25 1963-11-05 Conch Int Methane Ltd Insulated space and elements thereof
DE1228284B (de) * 1965-08-26 1966-11-10 Linde Ag Behaelter zur Lagerung tiefsiedender verfluessigter Gase
DE2143941A1 (de) * 1971-09-02 1973-03-08 Kaefer Isoliertechnik Isolierung fuer behaelter zur aufnahme tiefkalter fluessigkeiten
US4104783A (en) * 1976-11-12 1978-08-08 Process Engineering, Inc. Method of thermally insulating a cryogenic storage tank
AU4373279A (en) * 1978-02-07 1979-08-16 Expanded Metal Co. Ltd., The Containers
DE3108801A1 (de) * 1981-03-07 1982-09-16 Kaefer Isoliertechnik Gmbh & Co Kg, 2800 Bremen "dehnungselastische isolierung, insbesondere tieftemperaturisolierung"
DE8110672U1 (pt-PT) * 1981-04-03 1992-05-21 Kts Kunststoff-Technische Spezialfertigungen Anni Przytarski, 1000 Berlin, De
GB2108647B (en) * 1981-10-27 1985-06-12 Capper Neill International Lim Improvements in tanks
NO150698C (no) * 1981-11-04 1984-11-28 Moss Rosenberg Verft As Anordning ved isolering av et kileformet rom mellom to strukturer
FR2527544B1 (fr) * 1982-06-01 1987-01-09 Gaz Transport Cuve etanche et thermiquement isolante integree a la structure porteuse d'un navire et navire la comportant
DE3524625A1 (de) * 1985-07-10 1987-01-15 Bilfinger Berger Bau Bodenisolierung und zugehoerige unterkonstruktion fuer den innentank von doppelwandigen behaeltern fuer tiefkalte fluessigkeiten, z.b. fluessiggas
DE3528776C2 (de) * 1985-08-10 1995-04-27 Kaefer Isoliertechnik Paneelelement für Wärmedämmungen, vorwiegend im kryogenen Temperaturbereich
DE3913253A1 (de) * 1989-04-22 1990-10-25 Holzmann Philipp Ag Behaelter zur einlagerung von tiefgekuehlten fluessigkeiten
DE4339830C2 (de) * 1993-11-23 1996-03-21 Kaefer Isoliertechnik Wärmedämmung eines Kugeltanks zur Aufnahme tiefkalter Flüssigkeiten

Also Published As

Publication number Publication date
DE59701110D1 (de) 2000-03-16
NO980425D0 (no) 1998-01-30
PT857912E (pt) 2000-07-31
ES2142130T3 (es) 2000-04-01
NO20004232L (no) 1998-08-03
KR100254848B1 (ko) 2000-05-01
NO310743B1 (no) 2001-08-20
EP0915284A1 (de) 1999-05-12
NO20004232D0 (no) 2000-08-23
EP0857912B1 (de) 2000-02-09
NO980425L (no) 1998-08-03
KR19980070879A (ko) 1998-10-26
EP0857912A1 (de) 1998-08-12
DE19703591A1 (de) 1998-08-06
JPH10220692A (ja) 1998-08-21
DE59704386D1 (de) 2001-09-27
JP3223248B2 (ja) 2001-10-29
ES2163311T3 (es) 2002-01-16
PT915284E (pt) 2002-02-28

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