EP1945498A2 - Device for mounting a tank in a ship - Google Patents

Device for mounting a tank in a ship

Info

Publication number
EP1945498A2
EP1945498A2 EP06829100A EP06829100A EP1945498A2 EP 1945498 A2 EP1945498 A2 EP 1945498A2 EP 06829100 A EP06829100 A EP 06829100A EP 06829100 A EP06829100 A EP 06829100A EP 1945498 A2 EP1945498 A2 EP 1945498A2
Authority
EP
European Patent Office
Prior art keywords
tank
saddle
insulating layer
foundation
ship
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
EP06829100A
Other languages
German (de)
French (fr)
Other versions
EP1945498B1 (en
Inventor
Appel Frank-Torsten
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.)
TGE Marine Gas Engineering GmbH
Original Assignee
TGE Marine Gas Engineering GmbH
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 TGE Marine Gas Engineering GmbH filed Critical TGE Marine Gas Engineering GmbH
Priority to PL06829100T priority Critical patent/PL1945498T3/en
Publication of EP1945498A2 publication Critical patent/EP1945498A2/en
Application granted granted Critical
Publication of EP1945498B1 publication Critical patent/EP1945498B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/70—Reinforcements for carrying localised loads, e.g. propulsion plant, guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/68—Panellings; Linings, e.g. for insulating purposes
    • 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
    • F17C13/082—Mounting arrangements for vessels for large sea-borne 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/025—Bulk storage in barges or on ships
    • 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
    • F17C2201/0147—Shape complex
    • F17C2201/0152—Lobes
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • F17C2205/0107—Frames
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/0126—One vessel
    • 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
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/033—Small pressure, e.g. 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—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
    • F17C2260/031—Dealing with losses due to heat transfer
    • F17C2260/033—Dealing with losses due to heat transfer by enhancing 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships

Definitions

  • the invention relates to a device for storing an independent tank for liquefied gas, in particular LNG, in a ship according to the preamble of claim 1, as well as a particularly suitable for the device biloben pressure tank.
  • Liquid natural gas places special demands on the design because its temperature is lower than that of most technical liquefied gases.
  • bilobe tanks which have the shape of two parallel and intersecting circular cylinders.
  • Such biloben tanks have been used for some time, because they use the space more efficient than circular cylindrical tanks while preserving their advantages in terms of mechanical stability.
  • Ethylene charge temperature about -100 ° C
  • At lower temperatures, e.g. occur in liquid natural gas pushes the known construction to its limits, and because of the temperatures themselves and additionally because of the higher thermal expansion coefficient of the tank material, which must be used for cryogenic liquefied gases.
  • the invention has for its object to provide a device of the type mentioned, which is not only suitable for circular cylindrical, but also for bilobe tanks that are to be filled with particularly cold, so-called. Tiefkalten liquid gases, especially LNG.
  • the inventive device foundation and saddle form no structural unit. Rather, both are separated from each other and have two mutually parallel planar surfaces, between which the accordingly also level thermal insulation layer is located.
  • the insulating layer with two flat boundary surfaces within this relative movements can now take place to compensate for thermal stresses in all directions, ie just transverse to the longitudinal direction of the tank, so that it for the functioning of the construction on the cross-sectional Shape of the tank and, because the tensions are not collected, but reduced, no longer reaches a minimum temperature of the liquefied gas.
  • the device according to the invention is therefore particularly predestined for the storage of biloben tanks for the transport of LNG.
  • the insulating layers of the device according to the invention are preferably made of a pressure and shear-resistant material, so that they can withstand not only the load of the filled tank, but also the frictional forces, which are introduced at temperature difference-related relative movements.
  • the material may be a polymeric plastic.
  • the insulating layers may be fixedly attached to the top of the foundation or fixed to the underside of the associated saddle. In the case of two-part insulating layers, one part is fixedly attached to the upper side of the foundation and the other part to the lower side of the associated saddle, whereby the relative movement between the two takes place within the insulating layer at the flat boundary surfaces of the two parts.
  • the first alternative in which each insulating layer is firmly attached to the top of its foundation, so that the relative movement between the saddle and foundation on the underside of the saddle takes place. That is the simplest way of constructing.
  • the holder of the tank in the ship to avoid shifts is generally best done with the means of claim 4, wherein the webs prevent sliding movements between the underside of the saddles and the insulating layer held on the foundation each transverse to their longitudinal extent.
  • the choice and arrangement of the webs should be chosen so that the degradation of thermal stresses is not restricted. A preferred arrangement in this respect is apparent from the claims 5 and 6.
  • the at least one web extending in tank transverse direction on a saddle prevents the movement of the tank on this saddle in the longitudinal direction. On the other saddles or on the other hand, there is no transverse web, so that there the necessary relative movement to reduce the tension in the longitudinal direction is possible.
  • the tank secure the longitudinal webs according to claim 6, but allow symmetrical to its two sides, the relative movements in the transverse direction, which are necessary here for reducing the thermal stresses. If the tank with its longitudinal axis is parallel to the ship's longitudinal direction, the usual and preferred arrangement, the longitudinal webs should be exactly in the middle of the vessel, with respect to its transverse direction, so that the tank centers in the event of any stretching or shrinkage in relation to the ship remains and thus its trim is not disturbed.
  • the fuses which prevent the lifting of the tank from the foundations in rough seas, are preferably designed according to claim 7. They are also located in the transverse center of the ship. This has over a conceivable arrangement on both sides of the tank the advantage that it at The discharge of the tank does not lead to jamming between the tank and the hull due to a slight concave curvature of the bottom of the ship, which indeed occurs during unloading:.
  • tanks can be stored in each case by means of a device according to the invention in a ship.
  • the design of the ship in this respect depends on customary, known criteria.
  • a tank according to the invention also with other liquid media, e.g. To fill chemicals to ensure the economic exploitation of the ship.
  • FIG. 1 shows a simplified cross section through a ship with a device according to the invention for the storage of a biloben tank
  • Figure 2 is a partial longitudinal section through the device and the tank of Figure 1 in the region of a rear in the ship's rear base and saddle ..;
  • FIG. 3 shows a partial longitudinal section corresponding to FIG. 2 in the area of a front foundation and saddle
  • FIG. 4 shows a detail of FIG. 2 in an enlarged and detailed illustration
  • FIG. 5 shows a detail of FIG. 3 in an enlarged and detailed representation
  • Figure 6 is a partial cross-section through a console on a saddle of the tank and by the associated, ship-side support.
  • Fig. 7 is a section along the line A-A in Fig. 6;
  • Fig. 8 is a schematic representation of the flat undersides of the saddles of the device according to the invention.
  • Fig. 1 shows a simplified cross section through a ship's hull 1 with a device according to the invention for the storage of a biloben tank 3.
  • the illustrated section plane is perpendicular to the ship's axis.
  • the bilobe tank 3 has a cross-section that orders from two circular arc segments.
  • the tank 3 rests on two or more saddles 6, one of which is shown in FIG.
  • the saddle 6 is fixedly connected to the tank 3, preferably welded.
  • a foundation 4 is arranged in the hull 1 and firmly connected with this.
  • the insulating layer 8 transmits the weight of the tank 3 and its contents to the foundation 4.
  • the insulating layer 8 preferably consists at least in part of compressed wood. It is firmly connected to the flat bottom 7 of the saddle 6 and slides on the flat top 5 of the foundation 4.
  • the insulating layer 8 is fixedly connected to the flat top 5 of the foundation 4 and slides on the flat bottom 7 of the saddle 6.
  • the insulating layer 8 consists of two or more layers, of which the lowermost with the flat top 5 of the foundation 4 and the top with the flat bottom 7 of the saddle 6 are firmly connected.
  • insulating sleeve of the tank 3 This surrounds the tank 3 and the saddle 6 on all sides except the flat bottom 7 of the saddle 6, which is covered by the insulating layer 8 shown in FIG , The insulation, not shown, and the insulating layer 8 minimize the loss of cold of the tank 3 and the transition of heat from the hull 1 to the tank. 3
  • Fig. 2 shows a schematic side view of the tank 3 with its storage according to the invention.
  • the bearing shown in Fig. 2 is the rear in the direction of travel or rear of two or more bearings.
  • the saddle 6 is attached.
  • the insulating layer 8 is arranged.
  • In the longitudinal direction of the ship in front of and behind the saddle 6 supports 15 are fixedly connected to the foundation 4.
  • a web 10 is perpendicular to the flat bottom 7 of the saddle 6 and fixedly connected thereto.
  • the web 10 is arranged transversely to the longitudinal axis of the ship and engages in a corresponding recess 11 of the insulating layer 8, which is fixedly connected to the flat top 5 of the foundation 4. Over the web 10 and the insulating layer 8 and the recess therein, forces are transmitted parallel to the ship's longitudinal axis between the foundation 4 and the saddle 6 by positive engagement.
  • Fig. 3 shows schematically a side view of a further storage of the tank 3 in the hull 1.
  • the storage shown in Fig. 2 in the direction of travel of the ship at the rear of the tank 3 and the storage shown in Fig. 3 in the direction of travel of the ship at the front of the tank. 3 arranged.
  • the storage shown in Fig. 3 differs from the storage shown in Fig. 2 in that no web 10 is provided on the flat bottom 7 of the saddle 6.
  • a Transmission of forces in the longitudinal direction of the vessel between the tank 3 and the saddle 6 on the one hand and the foundation 4 on the other hand is thus not. Changes in the length of the tank 3 and in particular the spacing of the saddles 6 resulting from temperature changes therefore do not result in any stresses between the saddle 6 and the foundation 4.
  • Fig. 4 shows schematically a detail of the storage shown in Fig. 2 in an enlarged view.
  • the insulating layer 8 is secured by a trough-shaped configuration of the foundation 4 or by other measures against displacement relative to the foundation 4 in the transverse or longitudinal direction of the vessel 10.
  • the web 10 on the flat bottom 7 of the saddle 6 engages in the corresponding recess 11 in the insulating layer 8.
  • the insulation of the tank 3, not shown in Figs. 1 to 3 closes at the Saddle 6 on.
  • Fig. 5 shows schematically a section of the storage shown in Fig. 3 in an enlarged view.
  • no web 10 is arranged on the flat underside 7 of the saddle 6 in the case of the bearing shown in FIGS. 3 and 5.
  • the flat bottom 7 of the saddle 6 can therefore slide on the insulating layer 8.
  • no or at least no forces exceeding the frictional force between the saddle 6 and the insulating layer 8 are transmitted parallel to the underside 7 of the saddle or to the upper side 5 of the foundation 4.
  • Fig. 6 shows a partial cross section through the console 14 shown above in Figs. 2 and 3 and supports 15.
  • the illustrated section plane is perpendicular to the longitudinal axis of the ship.
  • the support 15 encloses the console 14 in the form of an inverted "U.”
  • the support 15 and the foundation 4 together form a tunnel or channel in which the console 14 is arranged.
  • an insulating layer 8 is arranged, and between the bracket 14 and the support 15, an insulating layer 16 is arranged.
  • the insulating layer 8 is secured against displacement relative to the foundation 4.
  • a web 12 is arranged parallel to the ship's longitudinal axis, which engages in a corresponding recess in the insulating layer 8.
  • horizontal forces are transmitted transversely to the ship's longitudinal axis between the bracket 14 and the web 12 on the one hand and the insulating layer 8 and the foundation 4 on the other hand and prevents displacement of the console 14 and thus the tank transversely to the ship's longitudinal axis.
  • the support 15 also prevents lifting of the console 14 and thus the associated saddle 6 of the insulating layer 8 and the foundation. 4
  • Fig. 7 shows schematically a section along the line AA in Fig. 6. It can be seen that the console 14 formed on the saddle 6 and the flat bottom 7 or the flat bottom 7 of the saddle 6 forming plate or integrally with this is executed.
  • the insulating layer 16 is rectangular and secured by a trough-shaped configuration of the top of the console 14 against this against slipping. The side remains between the bracket 14 and the support 15, a gap.
  • a guide in the direction transverse to the ship's longitudinal axis is effected exclusively by the web 12 shown in FIG. 6 in interaction with the recess 13 in the insulating layer 8.
  • Fig. 8 is a schematic representation of the flat bottoms 7 of the saddles 6 of a tank, not shown in Fig. 8.
  • the flat undersides 7 of the saddles have their greatest extent in the direction transverse to the ship's longitudinal axis 2.
  • the flat undersides 7 of the saddles 6 have approximately the width of the tank in this direction.
  • the brackets 14 are arranged near the ship's longitudinal axis 2 in front of and behind each saddle.
  • the webs 12, which are also shown in FIG. 6, are respectively arranged on the ship's longitudinal axis 2.
  • the web 10 absorbs forces parallel to the ship's longitudinal axis 2 and prevents displacement of the tank relative to the ship's hull in the direction of the ship's longitudinal axis 2.
  • the webs 12 take forces transverse to the ship's longitudinal axis and prevent displacement of the tank relative to the ship's hull transverse to the ship's longitudinal axis. 2
  • the web 10 is not arranged on the rear in the direction of travel of the ship 21 storage, but on the front in the direction of travel of the ship 22 storage. Notwithstanding the illustrations in the figures, furthermore, the flat undersides 7 of the saddles 6 can be multi-part and / or deviate from the rectangular shape. Furthermore, the webs 12 may be provided in separate sections of the saddles 6 and / or in other numbers.

Abstract

Disclosed is a device for mounting a tank in a ship (1). Said device comprises at least two foundations (4) which are fastened to the hull at a distance from each other in the longitudinal or transversal direction of the ship (1) and each of which supports one saddle (6) that is adapted to the shape of the tank (3) and is used for accommodating the tank (3). The inventive device further comprises an insulating layer (8) that is provided on each saddle (6) to thermally insulate the foundations (4) relative to the tank (3) as well as safety mechanisms (10; 12; 15) for mounting the tank (3) on the foundations (4), said safety mechanisms (10; 12; 15) allowing a relative movement between the tank (3) and at least one foundation (4) on the insulating layer (8) in the longitudinal direction of the tank. Each saddle (6) is fastened directly to the tank (3) and has a planar bottom face (7) while each foundation (4) has a planar top face (5), all bottom and top faces (7; 5) being parallel to one another. The insulating layer (8) is disposed between the bottom face (7) of the saddle (6) and the top face (5) of the associated foundation (4) while the safety mechanisms (10; 12; 15) allow a limited relative movement between each saddle (6) and the foundation (4) thereof on or in the insulating layer (8).

Description

Vorrichtung zur Lagerung eines Tankes in einem SchiffDevice for storing a tank in a ship
Die Erfindung betrifft eine Vorrichtung zur Lagerung eines unabhängigen Tankes für Flüssiggas, insbesondere LNG, in einem Schiff nach dem Oberbegriff des Anspruches 1, sowie einen für die Vorrichtung besonders geeigneten biloben Drucktank.The invention relates to a device for storing an independent tank for liquefied gas, in particular LNG, in a ship according to the preamble of claim 1, as well as a particularly suitable for the device biloben pressure tank.
Für den Transport von Flüssiggas in Schiffen, namentlich hochseegehenden Schiffen, gibt es traditionell mehrere Lösungen. In jedem Fall geht es darum, einen Behälter für das kalte oder tiefkalte Flüssiggas in dem Schiff gegenüber der Schiffshülle thermisch zu isolieren und gleichzeitig eine Verbindung des Behälters mit der Schiffshülle zu schaffen, die der Last der Beladung und den bei der Fahrt auftretenden Beschleunigungen von bis zu 1,5 g standhält. Neben Integraltanks, Membrantanks und Semi-Membrantanks werden unabhängige Tanks für das Flüssiggas eingesetzt, die in sich selbst, d.h. ohne Rückgriff auf die Schiffskonstruktion mechanisch stabil sind. Dabei wird weiter zwischen drucklosen Tanks und Drucktanks unterschieden, wobei die Temperatur des Flüssiggases im drucklosen Tank naturgemäß besonders niedrig ist.There are traditionally several solutions for the transport of liquefied gas in ships, in particular seagoing ships. In any case, it is a matter of thermally insulating a container for the cold or cryogenic LPG in the ship against the hull and at the same time to provide a connection of the container with the hull, the load of the load and the acceleration occurring during the trip from to withstands 1.5 g. In addition to integral tanks, membrane tanks and semi-membrane tanks, independent tanks are used for the liquefied petroleum gas, which in themselves, i. are mechanically stable without resorting to the ship's design. It is further distinguished between pressureless tanks and pressure tanks, the temperature of the liquefied gas in the pressureless tank is naturally very low.
Flüssiges Erdgas (LNG) stellt dabei besondere Anforderungen an die Konstruktion, weil seine Temperatur niedriger als die der meisten technischen Flüssiggase ist.Liquid natural gas (LNG) places special demands on the design because its temperature is lower than that of most technical liquefied gases.
Es sind bereits Schiffe für den Transport von Flüssiggas mit einer Vorrichtung der eingangs genannten Art gebaut worden, bei welchen der Tank kreiszylindrisch ist und mit seiner Längsachse in Längsrichtung, gelegentlich auch in Querrichtung des Schiffes liegt. Dabei bilden das an der Schiffshülle befestigte Fundament und der dem kreiszylindrischen Tank an- gepasste, in etwa kreisabschnittförmige Sattel eine bauliche Einheit und die Isolierschicht ist zwischen Sattel und Tank angeordnet. An einem der beiden Sättel ist der Tank gegenüber Längsverschiebungen gesichert, jedoch am anderen Sattel gegenüber diesem in Längsrichtung beweglich, so dass keine thermischen Spannungen in Längsrichtung entstehen können. Quer zur Längsrichtung wird der Tank festgehalten, weil er formschlüssig im Sattel liegt. Die thermische Schrumpfung in dieser Richtung erfolgt aber zum tiefsten Punkt im Sattelfundament, weshalb auch insoweit keine signifikanten thermischen Spannungen auftreten.There have already been built ships for the transport of liquefied petroleum gas with a device of the type mentioned, in which the tank is circular cylindrical and with its longitudinal axis in the longitudinal direction, occasionally also in the transverse direction of the ship. In this case, the foundation fixed to the hull of the ship and the approximately circular segment-shaped saddle fitted to the circular-cylindrical tank form a structural unit and the insulating layer is arranged between the saddle and the tank. On one of the two saddles is the tank opposite Secured longitudinal displacements, but on the other saddle relative to this longitudinally movable, so that no thermal stresses can occur in the longitudinal direction. Transverse to the longitudinal direction of the tank is held, because it is form-fitting in the saddle. The thermal shrinkage in this direction, however, takes place at the lowest point in the saddle foundation, which is why no significant thermal stresses occur to that extent.
Das letztere trifft nicht zu für sogenannte bilobe Tanks, die die Form zweier paralleler und ineinander verschnittener Kreiszylinder haben. Solche biloben Tanks werden seit einiger Zeit eingesetzt, weil sie den Schiffsraum effizienter als kreiszylindrische Tanks nutzen und gleichzeitig deren Vorteile hinsichtlich der mechanischen Stabilität bewahren. Zur Lagerung bilober Tanks in Schiffen sind Vorrichtungen der zuvor beschriebenen Bauweise mit gemeinsamen Sätteln für beide Tankhälften schon verwendet worden. Entsprechend der Tankform haben diese Sättel die Gestalt zweier in Querrichtung des Tankes aneinander anschließender Kreisabschnitte. Die thermische Schrumpfung in Querrichtung erfolgt hier zur Mitte des Sattels auf seinen höchsten Punkt mit der Folge, daß thermische Spannungen entstehen. Diese sind gerade noch akzeptabel, wenn es sich um ein relativ hoch siedendes Flüssiggas, z.B. Ethylen (Ladungstemperatur ca. -100 °C) handelt. Bei niedrigeren Temperaturen, wie sie z.B. bei flüssigem Erdgas auftreten, stößt die bekannte Konstruktion an ihre Grenzen, und zwar wegen der Temperaturen selber und zusätzlich wegen des höheren Wärmedehnungskoeffizienten des Tank-Werkstoffes, der für tiefkalte Flüssiggase eingesetzt werden muß.The latter does not apply to so-called bilobe tanks, which have the shape of two parallel and intersecting circular cylinders. Such biloben tanks have been used for some time, because they use the space more efficient than circular cylindrical tanks while preserving their advantages in terms of mechanical stability. For storage bilober tanks in ships devices of the construction described above with common saddles for both tank halves have been used. According to the tank shape these saddles have the shape of two adjacent in the transverse direction of the tank circular sections. The thermal shrinkage in the transverse direction takes place here to the middle of the saddle to its highest point, with the result that thermal stresses arise. These are just acceptable if it is a relatively high boiling liquefied petroleum gas, e.g. Ethylene (charge temperature about -100 ° C) is. At lower temperatures, e.g. occur in liquid natural gas, pushes the known construction to its limits, and because of the temperatures themselves and additionally because of the higher thermal expansion coefficient of the tank material, which must be used for cryogenic liquefied gases.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die nicht nur für kreiszylindrische, sondern auch für bilobe Tanks geeignet ist, die mit besonders kalten, sog. tiefkalten Flüssiggasen, insbesondere LNG, befüllt werden sollen.The invention has for its object to provide a device of the type mentioned, which is not only suitable for circular cylindrical, but also for bilobe tanks that are to be filled with particularly cold, so-called. Tiefkalten liquid gases, especially LNG.
Diese Aufgabe ist erfindungsgemäß mit der in Anspruch 1 ge- kennzeichneten Vorrichtung gelöst, wobei vorteilhafte Ausgestaltungen aus den Unteransprüchen hervorgehen. Ein an die erfindungsgemäße Vorrichtung besonders angepasster bilober Drucktank gemäß der Erfindung ist in Anspruch 10 gekennzeichnet .This object is achieved according to the invention by the characterized solved device, wherein advantageous embodiments emerge from the dependent claims. A particularly adapted to the inventive device bilober pressure tank according to the invention is characterized in claim 10.
Bei der erfindungsgemäßen Vorrichtung bilden Fundament und Sattel keine bauliche Einheit. Vielmehr sind beide voneinander getrennt und haben zwei zueinander parallele ebene Flächen, zwischen denen die dementsprechend ebenfalls ebene thermische Isolierschicht liegt. An dieser oder auch, bei zweiteiliger Ausbildung der Isolierschicht mit zwei ebenen Grenzflächen, innerhalb dieser können nun Relativbewegungen zum Ausgleich thermischer Spannungen in allen Richtungen, also gerade auch quer zur Längsrichtung des Tankes stattfinden, so dass es für das Funktionieren der Konstruktion auf die Querschnitts-Gestalt des Tankes und, weil die Spannungen nicht aufgefangen, sondern abgebaut werden, auf eine Mindesttemperatur des Flüssiggases nicht mehr ankommt. Die erfindungsgemäße Vorrichtung ist deshalb insbesondere prädestiniert zur Lagerung von biloben Tanks für den Transport von LNG.In the inventive device foundation and saddle form no structural unit. Rather, both are separated from each other and have two mutually parallel planar surfaces, between which the accordingly also level thermal insulation layer is located. At this or even, in two-part formation of the insulating layer with two flat boundary surfaces, within this relative movements can now take place to compensate for thermal stresses in all directions, ie just transverse to the longitudinal direction of the tank, so that it for the functioning of the construction on the cross-sectional Shape of the tank and, because the tensions are not collected, but reduced, no longer reaches a minimum temperature of the liquefied gas. The device according to the invention is therefore particularly predestined for the storage of biloben tanks for the transport of LNG.
Die Isolierschichten der erfindungsgemäßen Vorrichtung bestehen vorzugsweise aus einem druck- und schubfesten Material, damit sie nicht nur der Last des gefüllten Tankes, sondern auch den Reibungskräften standhalten können, die bei tempera- turdifferenzbedingten Relativbewegungen eingeleitet werden. Das Material kann ein polymerer Kunststoff sein. Vorzugsweise kommt jedoch in an sich bekannter Weise Pressholz zum Einsatz. Die Isolierschichten können fest an der Oberseite des Fundamentes oder fest an der Unterseite des zugeordneten Sattels angebracht sein. Im Falle zweiteiliger Isolierschichten ist ein Teil an der Oberseite des Fundaments und der andere Teil an der Unterseite des zugeordneten Sattels fest angebracht, womit die Relativbewegung zwischen beiden innerhalb der Isolierschicht an den ebenen Grenzflächen der beiden Teile stattfindet. Erfindungsgemäß bevorzugt wird die erste Alternative, bei der jede Isolierschicht an der Oberseite ihres Fundamentes fest angebracht ist, so dass die Relativbewegung zwischen Sattel und Fundament an der Unterseite des Sattels stattfindet. Das ist konstruktiv am einfachsten.The insulating layers of the device according to the invention are preferably made of a pressure and shear-resistant material, so that they can withstand not only the load of the filled tank, but also the frictional forces, which are introduced at temperature difference-related relative movements. The material may be a polymeric plastic. Preferably, however, is used in a conventional manner compressed wood used. The insulating layers may be fixedly attached to the top of the foundation or fixed to the underside of the associated saddle. In the case of two-part insulating layers, one part is fixedly attached to the upper side of the foundation and the other part to the lower side of the associated saddle, whereby the relative movement between the two takes place within the insulating layer at the flat boundary surfaces of the two parts. According to the invention, the first alternative in which each insulating layer is firmly attached to the top of its foundation, so that the relative movement between the saddle and foundation on the underside of the saddle takes place. That is the simplest way of constructing.
Bei dieser Ausbildung erfolgt die Halterung des Tankes im Schiff zur Vermeidung von Verschiebungen insgesamt am besten mit den Mitteln des Anspruchs 4, bei welchem die Stege Gleitbewegungen zwischen der Unterseite der Sättel und der am Fundament festgehaltenen Isolierschicht jeweils quer zur ihrer Längserstreckung unterbinden. Natürlich ist dabei Auswahl und Anordnung der Stege so zu wählen, dass der Abbau thermischer Spannungen nicht eingeschränkt wird. Eine bevorzugte Anordnung insoweit geht aus den Ansprüchen 5 und 6 hervor. Der mindestens eine Steg, der sich in Tankquerrichtung an einem Sattel erstreckt, verhindert die Bewegung des Tankes an diesem Sattel in Längsrichtung. An dem oder den anderen Sätteln gibt es dagegen keinen quer verlaufenden Steg, so dass dort die notwendige Relativbewegung zum Abbau zum Spannungen in Längsrichtung möglich ist. In Querrichtung sichern den Tank die längslaufenden Stege gemäß Anspruch 6, lassen aber symmetrisch zu ihren beiden Seiten die Relativbewegungen in Querrichtung zu, die hier zum Abbau der thermischen Spannungen notwendig sind. Liegt der Tank mit seiner Längsachse parallel zur Schiffslängsrichtung, der üblichen und bevorzugten Anordnung, sollen sich die längslaufenden Stege genau in der Mitte des Schiffes, bezogen auf seine Querrichtung, befinden, damit der Tank bei einer allfälligen Dehnung oder Schrumpfung in Bezug auf das Schiff zentriert bleibt und somit dessen Trimmung nicht gestört wird.In this embodiment, the holder of the tank in the ship to avoid shifts is generally best done with the means of claim 4, wherein the webs prevent sliding movements between the underside of the saddles and the insulating layer held on the foundation each transverse to their longitudinal extent. Of course, the choice and arrangement of the webs should be chosen so that the degradation of thermal stresses is not restricted. A preferred arrangement in this respect is apparent from the claims 5 and 6. The at least one web extending in tank transverse direction on a saddle, prevents the movement of the tank on this saddle in the longitudinal direction. On the other saddles or on the other hand, there is no transverse web, so that there the necessary relative movement to reduce the tension in the longitudinal direction is possible. In the transverse direction, the tank secure the longitudinal webs according to claim 6, but allow symmetrical to its two sides, the relative movements in the transverse direction, which are necessary here for reducing the thermal stresses. If the tank with its longitudinal axis is parallel to the ship's longitudinal direction, the usual and preferred arrangement, the longitudinal webs should be exactly in the middle of the vessel, with respect to its transverse direction, so that the tank centers in the event of any stretching or shrinkage in relation to the ship remains and thus its trim is not disturbed.
Die Sicherungen, die bei Seegang das Abheben des Tankes von den Fundamenten unterbinden, sind vorzugsweise gemäß Anspruch 7 ausgestaltet. Sie sind ebenfalls in der Quer-Mitte des Schiffes angeordnet. Dies hat gegenüber einer denkbaren Anordnung an beiden Seiten des Tankes den Vorteil, daß es bei der Entladung des Tankes nicht zu Verklemmungen zwischen Tank und Schiffshülle kommt aufgrund einer leichten konkaven Ein- wölbung des Schiffsbodens, die bei der Entladung in der Tat eintritt: .The fuses, which prevent the lifting of the tank from the foundations in rough seas, are preferably designed according to claim 7. They are also located in the transverse center of the ship. This has over a conceivable arrangement on both sides of the tank the advantage that it at The discharge of the tank does not lead to jamming between the tank and the hull due to a slight concave curvature of the bottom of the ship, which indeed occurs during unloading:.
Selbstverständlich können in einem Schiff mehrere Tanks jeweils mit Hilfe einer erfindungsgemäßen Vorrichtung gelagert sein. Die Auslegung des Schiffes insoweit richtet sich nach üblichen, bekannten Kriterien. Ebenso ist es natürlich möglich, einen erfindungsgemäß gelagerten Tank im Bedarfsfall auch mit anderen flüssigen Medien, z.B. Chemikalien zu befül- len, um eine wirtschaftliche Nutzung des Schiffes sicherzustellen.Of course, several tanks can be stored in each case by means of a device according to the invention in a ship. The design of the ship in this respect depends on customary, known criteria. Likewise, it is of course possible, if necessary, a tank according to the invention also with other liquid media, e.g. To fill chemicals to ensure the economic exploitation of the ship.
Im Folgenden ist die Erfindung mit weiteren vorteilhaften Einzelheiten an Hand eines schematisch dargestellten Ausführungsbeispiels näher erläutert.In the following, the invention is explained in more detail with further advantageous details with reference to a schematically illustrated embodiment.
Es zeigen:Show it:
Fig. 1 einen vereinfachten Querschnitt durch ein Schiff mit einer erfindungsgemäßen Vorrichtung zur Lagerung eines biloben Tankes;1 shows a simplified cross section through a ship with a device according to the invention for the storage of a biloben tank;
Fig. 2 einen Teil-Längsschnitt durch die Vorrichtung und den Tank nach Fig. 1 im Bereich eines in Schiffslängsrichtung hinteren Fundamentes und Sattels;Figure 2 is a partial longitudinal section through the device and the tank of Figure 1 in the region of a rear in the ship's rear base and saddle ..;
Fig. 3 einen Fig. 2 entsprechenden Teil-Längsschnitt im Bereich eines vorderen Fundamentes und Sattels;FIG. 3 shows a partial longitudinal section corresponding to FIG. 2 in the area of a front foundation and saddle; FIG.
Fig. 4 einen Ausschnitt zu Fig. 2 in vergrößerter und detaillierter Darstellung;4 shows a detail of FIG. 2 in an enlarged and detailed illustration; FIG.
Fig. 5 einen Ausschnitt zu Fig. 3 in vergrößerter und detaillierter Darstellung;5 shows a detail of FIG. 3 in an enlarged and detailed representation;
Fig. 6 einen Teil-Querschnitt durch eine Konsole an einem Sattel des Tankes und durch die zugeordnete, schiffsseitige Abstützung;Figure 6 is a partial cross-section through a console on a saddle of the tank and by the associated, ship-side support.
Fig. 7 einen Schnitt nach der Linie A-A in Fig. 6;Fig. 7 is a section along the line A-A in Fig. 6;
Fig. 8 eine schematische Darstellung der ebenen Unterseiten der Sättel der erfindungsgemäßen Vorrichtung. Fig. 1 zeigt einen vereinfachten Querschnitt durch einen Schiffsrumpf 1 mit einer erfindungsgemäßen Vorrichtung zur Lagerung eines biloben Tanks 3. Die dargestellte Schnittebene ist senkrecht zur Schiffsiangsachse.Fig. 8 is a schematic representation of the flat undersides of the saddles of the device according to the invention. Fig. 1 shows a simplified cross section through a ship's hull 1 with a device according to the invention for the storage of a biloben tank 3. The illustrated section plane is perpendicular to the ship's axis.
Der bilobe Tank 3 weist einen Querschnitt auf, der aus zwei Kreisbogensegmenten bestellt. Der Tank 3 ruht auf zwei oder mehr Sätteln 6, von denen in Fig. 1 einer dargestellt ist. Der Sattel 6 ist mit dem Tank 3 fest verbunden, vorzugsweise verschweißt. Ein Fundament 4 ist im Schiffsrumpf 1 angeordnet und mit diesem fest verbunden. Zwischen einer ebenen Oberseite 5 des Fundaments 4 und einer ebenen Unterseite 7 des Sattels 6 ist eine Isolierschicht 8 angeordnet. Die Isolierschicht 8 überträgt die Gewichtskraft des Tanks 3 und seines Inhalts auf das Fundament 4. Die Isolierschicht 8 besteht vorzugsweise mindestens zum Teil aus Pressholz. Sie ist mit der ebenen Unterseite 7 des Sattels 6 fest verbunden und gleitet auf der ebenen Oberseite 5 des Fundaments 4. Alternativ ist die Isolierschicht 8 mit der ebenen Oberseite 5 des Fundaments 4 fest verbunden und gleitet auf der ebenen Unterseite 7 des Sattels 6. Gemäß einer weiteren Alternative besteht die Isolierschicht 8 aus zwei oder mehr Schichten, von denen die unterste mit der ebenen Oberseite 5 des Fundaments 4 und die oberste mit der ebenen Unterseite 7 des Sattels 6 fest verbunden sind.The bilobe tank 3 has a cross-section that orders from two circular arc segments. The tank 3 rests on two or more saddles 6, one of which is shown in FIG. The saddle 6 is fixedly connected to the tank 3, preferably welded. A foundation 4 is arranged in the hull 1 and firmly connected with this. Between a flat top 5 of the foundation 4 and a flat bottom 7 of the saddle 6, an insulating layer 8 is arranged. The insulating layer 8 transmits the weight of the tank 3 and its contents to the foundation 4. The insulating layer 8 preferably consists at least in part of compressed wood. It is firmly connected to the flat bottom 7 of the saddle 6 and slides on the flat top 5 of the foundation 4. Alternatively, the insulating layer 8 is fixedly connected to the flat top 5 of the foundation 4 and slides on the flat bottom 7 of the saddle 6. According In a further alternative, the insulating layer 8 consists of two or more layers, of which the lowermost with the flat top 5 of the foundation 4 and the top with the flat bottom 7 of the saddle 6 are firmly connected.
In Fig. 1 und in den nachfolgenden Figuren nicht dargestellt ist eine Isolierhülle des Tanks 3. Diese umgibt den Tank 3 und den Sattel 6 allseitig mit Ausnahme der ebenen Unterseite 7 des Sattels 6, der von der in Fig. 1 dargestellten Isolierschicht 8 bedeckt ist. Die nicht dargestellte Isolierhülle und die Isolierschicht 8 minimieren den Kälteverlust des Tanks 3 bzw. den Übergang von Wärme vom Schiffsrumpf 1 auf den Tank 3.Not shown in Fig. 1 and in the following figures is an insulating sleeve of the tank 3. This surrounds the tank 3 and the saddle 6 on all sides except the flat bottom 7 of the saddle 6, which is covered by the insulating layer 8 shown in FIG , The insulation, not shown, and the insulating layer 8 minimize the loss of cold of the tank 3 and the transition of heat from the hull 1 to the tank. 3
Parallel zur Isolierschicht 8 wirkenden Quer- oder Längskräfte treten unter Anderem statisch bei Krängung des Schiffes und dynamisch beim Rollen, Nicken oder Gieren des Schiffes auf. Diese parallel zur ebenen Oberseite 5 des Fundaments 4 und zur ebenen Unterseite 7 des Sattels 6 werden durch Einrichtungen übertragen, die unten anhand der weiteren Fig. 2 bis 8 naher beschrieben werden. Von diesen Einrichtungen sind in Fig. 1 eine Konsole 14 und eine Abstützung 15 erkennbar.Transverse or longitudinal forces acting parallel to the insulating layer 8, inter alia, occur statically when the ship is slung and dynamically when the ship rolls, nods or yaws on. These parallel to the flat top 5 of the foundation 4 and the flat bottom 7 of the saddle 6 are transmitted by means which will be described in more detail below with reference to the further Figs. 2 to 8. Of these devices, a console 14 and a support 15 can be seen in Fig. 1.
Fig. 2 zeigt in schematischer Weise eine Seitenansicht des Tanks 3 mit seiner erfindungsgemäßen Lagerung. Vorzugsweise ist die in Fig. 2 dargestellte Lagerung die in Fahrtrichtung hintere oder hinterste von zwei oder mehr Lagerungen. An dem Tank 3 ist der Sattel 6 angebracht. Zwischen der ebenen Unterseite 7 des Sattels 6 und der ebenen Oberseite 5 des Fundaments 4 ist die Isolierschicht 8 angeordnet. In Längsrichtung des Schiffes vor und hinter dem Sattel 6 sind Abstützungen 15 mit dem Fundament 4 fest verbunden. Diese umschließen, wie unten mit Bezug auf die Fig. 6 und 7 näher erläutert wird, die mit dem Sattel 6 fest verbundenen Konsolen 14. Die Konsolen 14 sind vorzugsweise Fortsetzungen der die ebene Unterseite 7 des Sattels 6 bildenden Platte.Fig. 2 shows a schematic side view of the tank 3 with its storage according to the invention. Preferably, the bearing shown in Fig. 2 is the rear in the direction of travel or rear of two or more bearings. At the tank 3, the saddle 6 is attached. Between the flat bottom 7 of the saddle 6 and the flat top 5 of the foundation 4, the insulating layer 8 is arranged. In the longitudinal direction of the ship in front of and behind the saddle 6 supports 15 are fixedly connected to the foundation 4. These enclose, as will be explained in more detail below with reference to FIGS. 6 and 7, with the saddle 6 firmly connected brackets 14. The brackets 14 are preferably continuations of the flat bottom 7 of the saddle 6 forming plate.
Ein Steg 10 ist senkrecht zur ebenen Unterseite 7 des Sattels 6 angeordnet und mit diesem fest verbunden. Der Steg 10 ist quer zur Längsachse des Schiffes angeordnet und greift in eine entsprechende Ausnehmung 11 der Isolierschicht 8, die mit der ebenen Oberseite 5 des Fundaments 4 fest verbunden ist. Über den Steg 10 und die Isolierschicht 8 bzw. die Ausnehmung darin, werden durch Formschluss Kräfte parallel zur Schiffslängsachse zwischen dem Fundament 4 und dem Sattel 6 übertragen.A web 10 is perpendicular to the flat bottom 7 of the saddle 6 and fixedly connected thereto. The web 10 is arranged transversely to the longitudinal axis of the ship and engages in a corresponding recess 11 of the insulating layer 8, which is fixedly connected to the flat top 5 of the foundation 4. Over the web 10 and the insulating layer 8 and the recess therein, forces are transmitted parallel to the ship's longitudinal axis between the foundation 4 and the saddle 6 by positive engagement.
Fig. 3 zeigt schematisch eine Seitenansicht einer weiteren Lagerung des Tanks 3 im Schiffsrumpf 1. Vorzugsweise sind die in Fig. 2 dargestellte Lagerung in Fahrtrichtung des Schiffes hinten am Tank 3 und die in Fig. 3 dargestellte Lagerung in Fahrtrichtung des Schiffes vorne am Tank 3 angeordnet. Die in Fig. 3 dargestellte Lagerung unterscheidet sich von der in Fig. 2 dargestellten Lagerung dadurch, dass kein Steg 10 an der ebenen Unterseite 7 des Sattels 6 vorgesehen ist. Eine Übertragung von Kräften in Längsrichtung des Schiffes zwischen dem Tank 3 und dem Sattel 6 einerseits und dem Fundament 4 andererseits erfolgt somit nicht. Aus Temperaturänderungen resultierende Änderungen der Länge des Tanks 3 und insbesondere des Abstandes der Sättel 6 haben deshalb keine Spannungen zwischen dem Sattel 6 und dem Fundament 4 zur Folge.Fig. 3 shows schematically a side view of a further storage of the tank 3 in the hull 1. Preferably, the storage shown in Fig. 2 in the direction of travel of the ship at the rear of the tank 3 and the storage shown in Fig. 3 in the direction of travel of the ship at the front of the tank. 3 arranged. The storage shown in Fig. 3 differs from the storage shown in Fig. 2 in that no web 10 is provided on the flat bottom 7 of the saddle 6. A Transmission of forces in the longitudinal direction of the vessel between the tank 3 and the saddle 6 on the one hand and the foundation 4 on the other hand is thus not. Changes in the length of the tank 3 and in particular the spacing of the saddles 6 resulting from temperature changes therefore do not result in any stresses between the saddle 6 and the foundation 4.
Fig. 4 zeigt in schematischer Weise einen Ausschnitt der in Fig. 2 gezeigten Lagerung in vergrößerter Darstellung. Die Isolierschicht 8 ist durch eine trogförmige Ausgestaltung des Fundaments 4 oder auch durch andere Maßnahmen gegen eine Verschiebung relativ zum Fundament 4 in Quer- oder Längsrichtung des Schiffes 10 gesichert. Der Steg 10 an der ebenen Unterseite 7 des Sattels 6 greift in die entsprechende Ausnehmung 11 in der Isolierschicht 8. In Längsrichtung des Schiffes vor und hinter dem Sattel 6 schließt sich die in den Fig. 1 bis 3 nicht dargestellte Isolierhülle des Tanks 3 an den Sattel 6 an.Fig. 4 shows schematically a detail of the storage shown in Fig. 2 in an enlarged view. The insulating layer 8 is secured by a trough-shaped configuration of the foundation 4 or by other measures against displacement relative to the foundation 4 in the transverse or longitudinal direction of the vessel 10. The web 10 on the flat bottom 7 of the saddle 6 engages in the corresponding recess 11 in the insulating layer 8. In the longitudinal direction of the ship before and behind the saddle 6, the insulation of the tank 3, not shown in Figs. 1 to 3 closes at the Saddle 6 on.
Fig. 5 zeigt in schematischer Weise einen Ausschnitt der in Fig. 3 gezeigten Lagerung in vergrößerter Darstellung. Im Unterschied zu der in den Fig. 2 und 4 dargestellten Lagerung ist bei der in den Fig. 3 und 5 gezeigten Lagerung kein Steg 10 an der ebenen Unterseite 7 des Sattels 6 angeordnet. Die ebene Unterseite 7 des Sattels 6 kann deshalb auf der Isolierschicht 8 gleiten. Zwischen dem Sattel 6 und dem Fundament 4 werden keine oder zumindest keine die Reibungskraft zwischen Sattel 6 und Isolierschicht 8 übersteigende Kräfte parallel zur Unterseite 7 des Sattels bzw. zur Oberseite 5 des Fundaments 4 übertragen.Fig. 5 shows schematically a section of the storage shown in Fig. 3 in an enlarged view. In contrast to the bearing shown in FIGS. 2 and 4, no web 10 is arranged on the flat underside 7 of the saddle 6 in the case of the bearing shown in FIGS. 3 and 5. The flat bottom 7 of the saddle 6 can therefore slide on the insulating layer 8. Between the saddle 6 and the foundation 4, no or at least no forces exceeding the frictional force between the saddle 6 and the insulating layer 8 are transmitted parallel to the underside 7 of the saddle or to the upper side 5 of the foundation 4.
Fig. 6 zeigt einen Teilquerschnitt durch die oben in den Fig. 2 und 3 gezeigte Konsole 14 und Abstützungen 15. Die dargestellte Schnittebene liegt senkrecht zur Längsachse des Schiffes. Die Abstützung 15 umschließt die Konsole 14 in Form eines umgekehrten „U" . Anders ausgedrückt bilden Abstützung 15 und Fundament 4 zusammen einen Tunnel oder Kanal, in dem die Konsole 14 angeordnet ist. Zwischen der Oberseite 5 des Fundaments 4 und der Konsole 14 ist eine Isolierschicht 8 angeordnet, und zwischen der Konsole 14 und der Abstützung 15 ist eine Isolierschicht 16 angeordnet. Durch trogförmige Ausgestaltung des Fundaments 4 ist die Isolierschicht 8 gegen Verschiebung gegenüber dem Fundament 4 gesichert. An der Unterseite der Konsole 14 und senkrecht zu derselben ist ein Steg 12 parallel zur Schiffslängsachse angeordnet, der in eine entsprechende Ausnehmung in der Isolierschicht 8 greift. Durch Formschluss werden horizontale Kräfte quer zur Schiffslängsachse zwischen der Konsole 14 und dem Steg 12 einerseits und der Isolierschicht 8 und dem Fundament 4 andererseits übertragen und eine Verschiebung der Konsole 14 und damit auch des Tanks quer zur Schiffslängsachse verhindert. Die Abstützung 15 verhindert überdies ein Abheben der Konsole 14 und damit des mit ihr verbundenen Sattels 6 von der Isolierschicht 8 und dem Fundament 4.Fig. 6 shows a partial cross section through the console 14 shown above in Figs. 2 and 3 and supports 15. The illustrated section plane is perpendicular to the longitudinal axis of the ship. The support 15 encloses the console 14 in the form of an inverted "U." In other words, the support 15 and the foundation 4 together form a tunnel or channel in which the console 14 is arranged. Between the top 5 of the foundation 4 and the console 14, an insulating layer 8 is arranged, and between the bracket 14 and the support 15, an insulating layer 16 is arranged. By trough-shaped design of the foundation 4, the insulating layer 8 is secured against displacement relative to the foundation 4. At the bottom of the console 14 and perpendicular to the same, a web 12 is arranged parallel to the ship's longitudinal axis, which engages in a corresponding recess in the insulating layer 8. By positive engagement horizontal forces are transmitted transversely to the ship's longitudinal axis between the bracket 14 and the web 12 on the one hand and the insulating layer 8 and the foundation 4 on the other hand and prevents displacement of the console 14 and thus the tank transversely to the ship's longitudinal axis. The support 15 also prevents lifting of the console 14 and thus the associated saddle 6 of the insulating layer 8 and the foundation. 4
Fig. 7 zeigt schematisch einen Schnitt nach der Linie A-A in Fig. 6. Es ist erkennbar, dass die Konsole 14 an den Sattel 6 bzw. dessen ebenen Unterseite 7 oder die die ebene Unterseite 7 des Sattels 6 bildende Platte angeformt oder mit dieser einstückig ausgeführt ist. Die Isolierschicht 16 ist rechteckig und durch eine trogförmige Ausgestaltung der Oberseite der Konsole 14 gegenüber dieser gegen Verrutschen gesichert. Seitlich verbleibt zwischen der Konsole 14 und der Abstützung 15 ein Spalt. Eine Führung in Richtung quer zur Schiffslängsachse erfolgt ausschließlich durch den in Fig. 6 gezeigten Steg 12 in Wechselwirkung mit der Ausnehmung 13 in der Isolierschicht 8.Fig. 7 shows schematically a section along the line AA in Fig. 6. It can be seen that the console 14 formed on the saddle 6 and the flat bottom 7 or the flat bottom 7 of the saddle 6 forming plate or integrally with this is executed. The insulating layer 16 is rectangular and secured by a trough-shaped configuration of the top of the console 14 against this against slipping. The side remains between the bracket 14 and the support 15, a gap. A guide in the direction transverse to the ship's longitudinal axis is effected exclusively by the web 12 shown in FIG. 6 in interaction with the recess 13 in the insulating layer 8.
Fig. 8 ist eine schematische Darstellung der ebenen Unterseiten 7 der Sättel 6 eines in Fig. 8 nicht gezeigten Tanks. Die ebenen Unterseiten 7 der Sättel weisen ihre größte Ausdehnung in Richtung quer zur Schiffslängsachse 2 auf. Wie bereits in Fig. 1 erkennbar ist, weisen die ebenen Unterseiten 7 der Sättel 6 in dieser Richtung annähernd die Breite des Tanks auf. Angeformt an die die ebenen Unterseiten 7 der Sättel bildenden Platten sind die Konsolen 14 nahe der Schiffslängsachse 2 vor und hinter jedem Sattel angeordnet. An den Konsolen 14 sind jeweils auf der Schiffslängsachse 2 die auch in Fig. 6 gezeigten Stege 12 angeordnet. Bei der in Fahrtrichtung des Schiffes hinteren Lagerung 21 ist ferner der auch in den Fig. 2 und 4 gezeigte Steg 10 quer zur Schiffslängsachse 2 an der ebenen Unterseite 7 des Sattels angeordnet. Der Steg 10 nimmt Kräfte parallel zur Schiffslängsachse 2 auf und verhindert eine Verschiebung des Tanks gegenüber dem Schiffsrumpf in Richtung der Schiffslängsachse 2. Die Stege 12 nehmen Kräfte quer zur Schiffslängsachse auf und verhindern eine Verschiebung des Tanks gegenüber dem Schiffsrumpf quer zur Schiffslängsachse 2.Fig. 8 is a schematic representation of the flat bottoms 7 of the saddles 6 of a tank, not shown in Fig. 8. The flat undersides 7 of the saddles have their greatest extent in the direction transverse to the ship's longitudinal axis 2. As can already be seen in FIG. 1, the flat undersides 7 of the saddles 6 have approximately the width of the tank in this direction. Shaped to the flat undersides 7 of the saddles forming plates, the brackets 14 are arranged near the ship's longitudinal axis 2 in front of and behind each saddle. At the consoles 14, the webs 12, which are also shown in FIG. 6, are respectively arranged on the ship's longitudinal axis 2. When in the direction of travel of the ship rear bearing 21 of the web 10 also shown in Figs. 2 and 4 is also arranged transversely to the ship's longitudinal axis 2 on the flat bottom 7 of the saddle. The web 10 absorbs forces parallel to the ship's longitudinal axis 2 and prevents displacement of the tank relative to the ship's hull in the direction of the ship's longitudinal axis 2. The webs 12 take forces transverse to the ship's longitudinal axis and prevent displacement of the tank relative to the ship's hull transverse to the ship's longitudinal axis. 2
Alternativ ist der Steg 10 nicht an der in Fahrtrichtung des Schiffes hinteren Lagerung 21, sondern an der in Fahrtrichtung des Schiffes vorderen Lagerung 22 angeordnet. Abweichend von den Darstellungen in den Figuren können ferner die ebenen Unterseiten 7 der Sättel 6 mehrteilig sein und/oder von der Rechteckform abweichen. Ferner können die Stege 12 in separaten Abschnitten der Sättel 6 und/oder in anderer Anzahl vorgesehen sein. Alternatively, the web 10 is not arranged on the rear in the direction of travel of the ship 21 storage, but on the front in the direction of travel of the ship 22 storage. Notwithstanding the illustrations in the figures, furthermore, the flat undersides 7 of the saddles 6 can be multi-part and / or deviate from the rectangular shape. Furthermore, the webs 12 may be provided in separate sections of the saddles 6 and / or in other numbers.
stimmend:provoking:
1 Schiffsrumpf1 ship hull
2 Schiffslängsachse2 ship's longitudinal axis
3 Tank3 tank
4 Fundament4 foundation
5 ebene Oberseite5 level top
6 Sattel6 saddle
7 ebene Unterseite7 level underside
8 Isolierschicht8 insulating layer
10 Steg, quer10 bridge, across
11 Ausnehmung, quer11 recess, across
12 Steg, längs12 bridge, longitudinal
13 Ausnehmung, längs13 recess, longitudinal
14 Konsole14 console
15 Abstützung15 support
16 Isolierschicht zwischen Konsole und Abstützung16 insulating layer between console and support
21 vorderer Sattel21 front saddle
22 hinterer Sattel 22 rear saddle

Claims

Ansprüche claims
1.1.
Vorrichtung zur Lagerung eines unabhängigen, zylindrischen Tankes (3) für Flüssiggas, insbesondere LNG, m einem Schirr (1), mit mindestens zwei Fundamenten (4), die in Längs- oder Querrichtung des Schiffes (1) voneinander beabstandet an der Schiffshulle angebracht sind und jeweils einen der Form des Tankes (3) angepaßten Sattel (6) zur Aufnahme des Tankes (3) tragen, mit einer an jedem Sattel (6) vorgesehenen Isolierschicht (8) zur thermischen Isolierung der Fundamente (4) gegenüber dem Tank (3) und mit Sicherungen (10; 12; 15) zur Halterung des Tankes (3) auf den Fundamenten (4), die eine Relativbewegung zwischen Tank (3) und mindestens einem Fundament (4) an der Isolierschicht (8) in Tanklangsrichtung zulassen, dadurch gekennzeichnet, daß jeder Sattel (6) unmittelbar am Tank (3) befestigt ist und eine ebene Unterseite (7) hat, daß jedes Fundament (4) eine ebene Oberseite (5) hat, daß alle Unter- und Oberseiten (7; 5) parallel zueinander sind, daß die Isolierschicht (8) jeweils zwischen der Unterseite (7) des Sattels (6) und der Oberseite (5) des zugeordneten Fundamentes (4) angeordnet ist, und daß die Sicherungen (10; 12; 15) begrenzte Relativbewegungen zwischen jedem Sattel (6) und seinem Fundament (4) an oder in der Isolierschicht (8) zulassen.Device for supporting an independent, cylindrical tank (3) for liquefied gas, in particular LNG, m a crockery (1), with at least two foundations (4) which are spaced from each other in the longitudinal or transverse direction of the vessel (1) attached to the Schiffshulle and in each case one saddle (6) adapted to the shape of the tank (3) for receiving the tank (3), with an insulating layer (8) provided on each saddle (6) for thermal insulation of the foundations (4) relative to the tank (3 ) and with fuses (10; 12; 15) for supporting the tank (3) on the foundations (4) allowing a relative movement between the tank (3) and at least one foundation (4) on the insulating layer (8) in the tank longitudinal direction, characterized in that each saddle (6) is fixed directly to the tank (3) and has a flat underside (7), that each foundation (4) has a flat upper surface (5), that all lower and upper sides (7; ) are parallel to each other, that the insulating layer (8) jewe ils between the bottom (7) of the saddle (6) and the top (5) of the associated foundation (4) is arranged, and that the fuses (10; 12; 15) allow limited relative movements between each saddle (6) and its foundation (4) on or in the insulating layer (8).
2.Second
Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Isolierschichten (8) aus einem druck- und schubfestenApparatus according to claim 1, characterized in that the insulating layers (8) of a pressure and shear resistant
Material, vorzugsweise Pressholz, bestehen. Material, preferably compressed wood exist.
3 .3.
Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß jede Isolierschicht (8) an der Oberseite (5) ihres Fundamentes (4) fest angebracht ist, so daß die Relativbewegung zwischen Sattel (6) und Fundament (4) an der Unterseite (7) des Sattels (6) stattfindet.Device according to claim 2, characterized in that each insulating layer (8) is fixedly attached to the upper side (5) of its foundation (4), so that the relative movement between the saddle (6) and the foundation (4) on the underside (7) of the Saddle (6) takes place.
4.4th
Vorrichtung nach Anspruch 3 , dadurch gekennzeichnet, daß die Sicherungen zur Halterung des Tankes (3) auf den Fundamenten (4) feste Stege (10; 12) an den Unterseiten (7) der Sättel (6) umfassen, die senkrecht wegstehen und in korrespondierenden Ausnehmungen (11; 13) in der Isolierschicht (8) aufgenommen sind.Apparatus according to claim 3, characterized in that the fuses for holding the tank (3) on the foundations (4) comprise fixed webs (10; 12) on the undersides (7) of the saddles (6) which protrude perpendicularly and into corresponding ones Recesses (11, 13) are received in the insulating layer (8).
5.5th
Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß an der Unterseite (7) eines Sattels (6) mindestens einApparatus according to claim 4, characterized in that on the underside (7) of a saddle (6) at least one
Steg (10) vorgesehen ist, der sich quer zur Tanklängsrichtung erstreckt .Web (10) is provided, which extends transversely to the tank longitudinal direction.
6.6th
Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß an der Unterseite (7) jedes Sattels (6) in der Mitte des Tankes (3), bezogen auf seine Querrichtung, mindestens ein Steg (12) vorgesehen ist, der sich in Tanklängsrichtung erstreckt.Apparatus according to claim 4 or 5, characterized in that on the underside (7) of each saddle (6) in the middle of the tank (3), with respect to its transverse direction, at least one web (12) is provided which extends in the tank longitudinal direction ,
7.7th
Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Sicherungen zur Halterung des Tankes (3) auf den Fundamenten (4) an jedem Sattel (6) ein oder zwei Konsolen (14) umfassen, die am Sattel (6) in der Mitte des Tankes (3), be- zogen auf seine Querrichtung, ausgebildet sind, in Tanklängsrichtung weisen und jeweils unter einer mit der Schiffshülle verbundenen Abstützung (15) angeordnet sind, wobei zwischen Abstützung (15) und Konsole (14) eine Isolierschicht (16) zur thermischen Isolierung eingefügt ist.Device according to one of claims 1 to 6, characterized in that the fuses for holding the tank (3) on the foundations (4) on each saddle (6) comprise one or two brackets (14) fixed to the saddle (6) in the middle of the tank (3), attracted to its transverse direction, are formed, in the tank longitudinal direction and each under a support connected to the ship's hull (15) are arranged, wherein between the support (15) and console (14) an insulating layer (16) is inserted for thermal insulation.
8.8th.
Vorrichtung nach Anspruch 6 und 7, dadurch gekennzeichnet, daß die in Tanklängsrichtung sich erstreckenden Stege (12) imApparatus according to claims 6 and 7, characterized in that the webs (12) extending in the tank longitudinal direction are arranged in the
Bereich der Konsolen (14) vorgesehen sind.Area of the brackets (14) are provided.
9.9th
Vorrichtung nach einem der Ansprüche 1 bis 8 für einen biloben Drucktank (3) .Device according to one of claims 1 to 8 for a biloben pressure tank (3).
10.10th
Bilober Drucktank (3) zum Transport vom Flüssiggas, insbesondere LNG, in Schiffen (1), mit mindestens zwei Sätteln (6) für die Lagerung des Drucktankes im Schiff (1) , die in Längsrichtung des Drucktankes (3) voneinander beabstandet am Drucktank (3) befestigt sind und ebene Unterseiten (7) haben, wobei alle Unterseiten (7) zueinander parallel sind, und die an ihren Unterseiten (7) senkrecht wegstehende Stege (10; 12) aufweisen, von denen ein oder mehrere Stege (10) an einem Sattel (6) sich quer zur Längsrichtung des Drucktankes (3) erstrecken und sich an jedem Sattel (6) mindestens ein Steg (12) in der Mitte des Drucktankes (3), bezogen auf seine Querrichtung, in Längsrichtung des Drucktankes (3) erstreckt.Bilober pressure tank (3) for transporting liquefied gas, in particular LNG, in ships (1), with at least two saddles (6) for the storage of the pressure tank in the ship (1), which are spaced apart in the longitudinal direction of the pressure tank (3) on the pressure tank ( 3) are fastened and have flat lower sides (7), wherein all lower sides (7) are parallel to one another, and have on their lower sides (7) vertically wegstehende webs (10; 12), of which one or more webs (10) a saddle (6) extending transversely to the longitudinal direction of the pressure tank (3) and at each saddle (6) at least one web (12) in the middle of the pressure tank (3), with respect to its transverse direction, in the longitudinal direction of the pressure tank (3) extends.
11.11th
Schiff (1) mit einem Tank (3) für Flüssiggas, insbesondere LNG, und einer Vorrichtung gemäß einem der Ansprüche 1 bis 9 oder mit einem biloben Drucktank (3) nach Anspruch 10. Ship (1) with a tank (3) for liquefied gas, in particular LNG, and a device according to one of claims 1 to 9 or with a pressurized tank (3) according to claim 10.
EP06829100A 2005-12-01 2006-11-22 Device for mounting a tank in a ship Active EP1945498B1 (en)

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DE102005057451A DE102005057451A1 (en) 2005-12-01 2005-12-01 Device for storing a tank in a ship
PCT/EP2006/011205 WO2007062770A2 (en) 2005-12-01 2006-11-22 Device for mounting a tank in a ship

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KR (1) KR101066920B1 (en)
CN (1) CN101321662B (en)
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JP4837046B2 (en) 2011-12-14
DE102005057451A1 (en) 2007-06-14
CN101321662B (en) 2010-09-29
WO2007062770A2 (en) 2007-06-07
WO2007062770A3 (en) 2007-07-26
PL1945498T3 (en) 2009-07-31
ATE423726T1 (en) 2009-03-15
JP2009517272A (en) 2009-04-30
KR20080093980A (en) 2008-10-22
KR101066920B1 (en) 2011-09-27
DE502006002978D1 (en) 2009-04-09
CN101321662A (en) 2008-12-10

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