EP0062556B1 - Transportschiff mit zwei Schiffsräumen - Google Patents

Transportschiff mit zwei Schiffsräumen Download PDF

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Publication number
EP0062556B1
EP0062556B1 EP19820400499 EP82400499A EP0062556B1 EP 0062556 B1 EP0062556 B1 EP 0062556B1 EP 19820400499 EP19820400499 EP 19820400499 EP 82400499 A EP82400499 A EP 82400499A EP 0062556 B1 EP0062556 B1 EP 0062556B1
Authority
EP
European Patent Office
Prior art keywords
ship
transport
breach
holds
bulkheads
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
Application number
EP19820400499
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English (en)
French (fr)
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EP0062556A1 (de
Inventor
Guy Bonnafous
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.)
Nouvelle Technigaz SA
Original Assignee
Nouvelle Technigaz SA
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 Nouvelle Technigaz SA filed Critical Nouvelle Technigaz SA
Publication of EP0062556A1 publication Critical patent/EP0062556A1/de
Application granted granted Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/02—Arrangement of bulkheads, e.g. defining cargo spaces
    • 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

Definitions

  • the present invention relates and essentially relates to a structure of a transport ship, in particular for the transport of liquefied petroleum gas of small and medium capacity.
  • Transport vessels in particular small and medium-capacity liquefied petroleum gas (less than 20,000 m 3 ) had, until the publication of the code of the Intergovernmental Maritime Consultative Organization, a structural design which had become traditional. These ships had, in addition to an aft engine compartment and a front section, a loading space reserved for the cargo to be transported.
  • the loading space was subdivided into two holds separated by a watertight partition. Inside each of these wedges were arranged side by side two cylindrical or cylindrical conical tanks with horizontal and parallel longitudinal axes. This provision was unanimously adopted, since it corresponded to a satisfactory filling of the ship.
  • One of these imperatives is to be concerned with the ability of a ship to survive the normal flooding effects that result from hypothetical hull damage caused by some external force.
  • the regulations also provide maximum dimensions of a hypotetic breach, the length of which depends on the length of the ship and the penetration into the interior of the vessel or transverse extent of damage depends on the width of the ship.
  • the object of the present invention is therefore to eliminate the aforementioned drawbacks by providing a simple structure which meets the security requirements.
  • the solution proposed by the present invention to solve the problem posed consists of a transport vessel, in particular for the transport of liquefied petroleum gas of the type comprising a loading space and means ensuring the survival capacity of the vessel in the event of a resulting breach.
  • the loading space comprises two holds longitudinally separated by an intermediate space shaped to form said survival means, in that this space comprises two transverse partitions for separating the holds, watertight and spaced apart by a distance at least equal to a predetermined breach length which may occur in a collision, and an external longitudinal wall structure formed by the longitudinal and external walls forming the ship's side and two internal watertight bulkheads, each said internal partitions being respectively spaced from said ship's shell by a distance at least equal to scab at a predetermined depth of penetration likely to occur in a collision.
  • the ship according to the invention is such that the two holds cannot be simultaneously invaded by sea water, thus ensuring a capacity for sufficient survival of the vessel to avoid sinking.
  • this new separation of the loading space into two wedges allows, at equal capacity compared to the other solutions proposed in the prior art, which also provide the ship's survival capacity, to reduce the dimensions of said ship and obtain thus an appreciable gain on the weight of the ship which can go up to 15% and / or the cost price of the ship (of the order of 10%).
  • the intermediate space thus defined is arranged in a cargo hold, preferably in a fuel bunker and / or in a ballast tank, or the like.
  • Figure 1 is a schematic view in longitudinal section, vertical, illustrating a preferred arrangement of self-supporting tanks in a transport ship with two cargo holds according to the invention.
  • Figure 2 is a schematic top view in section, illustrating the arrangement of the cargo holds of a transport ship according to the invention.
  • a medium-capacity transport vessel (capacity for example less than 15,000 or 20,000 m 3 ) comprises in a known manner a compartment 1 of the machines at the rear and a section 2 before, the central part of the ship being reserved for cargo.
  • this central part of the ship is divided into two cargo holds 3, 4 separated by an intermediate space 5 defined below.
  • two self-supporting tanks 6a, 6b are arranged side by side in each wedge 3, 4 for loading, preferably of cylindrical or cylindroconical shape for the storage in particular of liquefied petroleum gas.
  • the intermediate space 5 is defined by two watertight bulkheads 7a, 7b transverse, these partitions respectively define the loading wedges 3, 4.
  • the distance 1 between these two watertight bulkheads is at least equal to the length of a breach in the ship, in the event of damage, and defined by international regulations.
  • This length 1 c is given by the following formula: where L is the length of the ship.
  • this intermediate space 5 is advantageously delimited by two partitions 8a, 8b, watertight, longitudinally, placed symmetrically with respect to the vertical and longitudinal median plane of the ship.
  • these partitions are at a distance h from the plating of the ship at least equal to the transverse extent p of breach in a ship defined by international regulations.
  • This transverse extent p of breach is defined by the following formula: where B is the width of the ship.
  • the intermediate space 5 defined by the watertight and transverse partitions 7a, 7b and / or the longitudinal watertight partitions 8a, 8b is arranged in a cargo hold, and preferably in a fuel bunker or a ballast tank.
  • FIG. 1 by way of example, it is possible to have a self-supporting and cylindrical tank 6c in a partially bridged position, above the bilge tanks 6b, in a manner known per se.
  • the load factor of a transport vessel according to the invention equal to about 0.38 is much higher than the load factors obtained by the other proposed solutions, which are close to 0.30-0.32 .
  • This filling coefficient corresponds, in particular for a gas transport vessel to the ratio of the useful transport capacity of the vessel (expressed in m 3 ) to the product of the three main dimensions of this vessel, namely: the length, the width and the hollow (expressed in meters).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (4)

1. Frachtschiffe insbesondere für die Beförderung von verflüssigtem Petroleumgas, mit einem Laderaum und Mitteln zur Gewährleistung der Überlebensfähigkeit des Schiffes bei einer die Überflutung eines Teiles des Schiffes veranlassenden Durchbrechung, dadurch gekennzeichnet, dass der besagte Laderaum zwei Längslasträume (3, 4) umfasst, die durch einen zur Bildung der besagten Überlebensmittel gestalteten Zwischenraum (5) getrennt sind, dass dieser Raum zwei die Laderäume trennende Querschotten (7a, 7b) umfasst, die wasserdicht und durch eine Entfernung getrennt sind, welche wenigstens einer vorbestimmten Durchbrechungslänge entspricht, die bei einem Zusammenstoss vorkommen kann sowie einen Aufbau von äusseren Längswänden, die durch die die Aussenhaut des Schiffes bildenden äusseren Längswände gebildet werden und von zwei inneren wasserdichten Längsschotten (8a, 8b), wobei jeder der besagten inneren Schotten (8a, 8b) sich jeweils in einem Abstand der besagten Aussenhaut des Schiffes befindet, die wenigstens einer vorbestimmten Eindringstiefe entspricht, welche bei einem Zusammenstoss geschehen kann.
2. Frachtschiff nach Anspruch 1, dadurch gekennzeichnet, dass die vorgenannte vorbestimmte Durchbrechungslänge durch die Formel :
Figure imgb0007
gegeben wird, in welcher L die Länge des Schiffes darstellt.
3. Frachtschiff nach Anspruch 1, dadurch gekennzeichnet, dass die vorgenannte vorbestimmte Eindringtiefe durch die Formel :
Figure imgb0008
gegeben wird, in welcher B die Breite des Schiffes darstellt.
4. Frachtschiff nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der vorgenannte Zwischenraum als Laderaum, in vorteilhafter Weise als Brennstoffbunker und/ oder als Ballasttank eingerichtet ist.
EP19820400499 1981-03-20 1982-03-18 Transportschiff mit zwei Schiffsräumen Expired EP0062556B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8105669A FR2502107B1 (fr) 1981-03-20 1981-03-20 Navire de transport a deux cales de chargement
FR8105669 1981-03-20

Publications (2)

Publication Number Publication Date
EP0062556A1 EP0062556A1 (de) 1982-10-13
EP0062556B1 true EP0062556B1 (de) 1987-09-09

Family

ID=9256490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820400499 Expired EP0062556B1 (de) 1981-03-20 1982-03-18 Transportschiff mit zwei Schiffsräumen

Country Status (5)

Country Link
EP (1) EP0062556B1 (de)
JP (1) JPS57172892A (de)
DE (1) DE3277193D1 (de)
ES (1) ES8302567A1 (de)
FR (1) FR2502107B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022189812A1 (en) * 2021-03-11 2022-09-15 Dimitrios Kostalas Merchant ship

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3318791T3 (pl) 2016-11-07 2021-06-14 AC-INOX GmbH Wielopłatowy ładunkowy zbiornik

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059310B (de) * 1956-02-27 1959-06-11 Johanna Muck Geb Roth Fluessigerdgas-Tankschiff
FR75764E (fr) * 1958-11-27 1961-08-11 Coque de navire pour le transport en vrac de liquides à basse température, tels que des gaz liquéfiés
FR1231206A (fr) * 1959-04-08 1960-09-27 Perfectionnements au transport du méthane en navire-citerne
JPS5119223B1 (de) * 1971-04-14 1976-06-16
JPS52143689A (en) * 1976-05-24 1977-11-30 Mitsui Eng & Shipbuild Co Ltd Tanker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022189812A1 (en) * 2021-03-11 2022-09-15 Dimitrios Kostalas Merchant ship

Also Published As

Publication number Publication date
JPS57172892A (en) 1982-10-23
FR2502107A1 (fr) 1982-09-24
DE3277193D1 (en) 1987-10-15
ES510617A0 (es) 1983-02-01
ES8302567A1 (es) 1983-02-01
EP0062556A1 (de) 1982-10-13
FR2502107B1 (fr) 1987-05-29

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