KR20160026998A - Method for tanker construction - Google Patents

Abstract

The present invention relates to a tanker, preferably a compartmental tanker, a drying method. According to the present invention, a method comprises the steps of: providing a hull having a main deck and disposed within at least one dock accessible within the main deck through a hatch opening; - providing a stand-alone tank module comprising a plurality of cargo tanks; - disposing said stand-alone tank module in said hold to provide a tanker, said tank module being configured such that said tank module and said hull are structurally independent and said tank module And is disposed in the dock so as to be removable through the hatch opening.

Description

{METHOD FOR TANKER CONSTRUCTION}

The present invention relates to the technical field of drying tankers, especially parcel tankers, for the transport of liquids such as oils and chemicals.

A tanker is a cargo ship constructed for the transport of liquids in bulk. It has a hull which contains a number of cargo tanks where the liquid for transport is stored. The liquid for transport is loaded into its cargo tanks through a piping system, referred to as a tanker, and then as an outfitting. Once the tanker arrives at its destination, the transported liquid is unloaded from the tanker through the cargo tanks, and then through the piping systems.

Along with the tankers, there are cargo ships constructed for the carriage of bulk dry cargo. These so-called dry bulk carriers have hulls that contain many holds instead of cargo tanks. The dock is a space for transporting dry cargo. Access to the dock is made at the top of the dock by a hatch opening within the ship's main deck. The cargo for transport is loaded into the dock and unloaded from the dock through its hatch openings. The loading and unloading of the dock is done by a quay crane, for example. Dry bulk lines are generally provided with hatch covers for covering the hatch openings during transportation of the dry cargo.

Transport of bulk and dry bulk is carried out by means of containerized cargo transportation where the cargo is stored in containers and the cargo and cargo containers are stored at the same time in a lifted / . Ships constructed for cargo transportation to the container are called container carriers. Container lines, such as dry bulk lines, have hulls that contain many holds, and access to the berth is at the top of the berth by the hatch openings in the main deck of the vessel. The size and shape of the containers used in the cargo transportation carried to the container may be such that the container containing the cargo can be lifted out front of the docks of the container line and easily transported to the shore by rail or road And can be handled. As a result, many containers can be transported within the respective holds of the container line. So-called cell guides are provided in the pods of the container lines in order to fix the containers in the pod and facilitate positioning of the containers relative to each other in the pod.

In U.S. Patent 4,949,659, a cargo ship is described as having a hull containing many holds, and such a vessel is provided with a replaceable system that allows the carriage to carry both containers and dry bulk in bulk in the holds. Such a cargo ship can function as a dry bulk carrier and a container ship.

The present invention relates to the technical field of drying tankers, in particular partition tankers. A compartmental tanker is a tanker designed to transport liquids at the same time, such as different grades of liquid, such as oil, or chemicals. A compartmental tanker has a relatively large number of small tanks for transporting different grades of liquid or liquid classifications in small quantities wholly separated from one vessel. Partitioned tankers are constructed with integrated steel tanks (mild steel, clad steel or stainless steel) that form part of the structure of the current tanker.

The present invention provides a method for a tanker, particularly a partitioned tanker structure.

The method according to the invention comprises the following steps.

- providing a hull having a main deck and disposed within at least one dock accessible through a hatch opening in the main deck;

Providing a self-contained tank module comprising a plurality of cargo tanks;

Placing a stand-alone tank module in the dock to provide a tanker,

The tank module is arranged in the dock so that the tank module and hull are structurally independent and the tank module is removable through the hatch openings of the dock after use of the tanker.

In the method according to the invention, once the size and shape of the tank module are placed in the dock, a part of the tank module arranged in the dock is adapted to the size and shape of the dock and the hatch opening of the dock is closed by the tank module . In other words, in the method according to the invention, one tank module is arranged in the dock and the tank module fills the cargo space provided by the dock.

In addition, in the method according to the invention, a fitting comprising ducts is arranged on the main deck to load the liquid to be transported into the cargo tanks of the tank module and to unload the liquid from the cargo tanks after transport. Such equipment allows the loading and unloading of liquid bulk cargo without removing the cargo tanks from the hull. The final tanker is thus configured to load and unload liquid bulk cargo and the tank module and its cargo tanks are held in place onboard the ship during loading and unloading of liquid bulk cargo. During the tanker drying, when the tank module is placed in the well and the tank module is removed from the dock, the cargo tanks of the tank module will be empty. Unlike containers in containerized transport, the tank modules of the present invention do not require size and shape to be placed in the dock and removed from the dock during the loading of the cargo, And shape are not required. Thus, unlike containers in transported containers, the tank modules of the present invention may have a size and shape that fills the cargo space provided by the cargo hold, and may be sized and shaped so that the tank module extends out from the cargo hold and out of the cargo hold. Shape. The typical size of the tank module is approximately 24 m Beam x 28 m Length x 13 m Height.

By closing the hatch opening of the dock by the tank module, the need for a main deck or hatch cover is eliminated to close the hatch opening after closing the tank module and placing the tank module in the dock, Lt; / RTI > In addition, the need for loading, unloading and maintenance conduits within the dock is eliminated.

Since the self-contained tank module is independent of the hull, the structure of the tank module is not affected by the same stresses and fatigue as the integrated tank and hull construction during operation. Consequently, the tank modules installed and constructed in accordance with the method of the present invention are safer to use than conventional integrated tanks and the tanks in the tank modules are less subject to cracking caused by stresses and fatigue in the vessel . Thus, unlike in the integrated tank and hull structure, the hull does not form one or more walls of the cargo tanks of the tank module. As a result, an additional barrier is provided between the cargo tanks and the liquid transported in the environment.

The fact that the structure of the tank module is not affected by the same stresses and fatigue as the integrated tank and hull structure during use will also mean that the tank module will have an extended life. The tank module can be removed with the vessel without deforming the hull or tank module, so that the tank module can be reused after removal without the need for rebuilding the tank module or the original hull. This may not be possible in a conventional tanker with integrated tanks without deforming the entire vessel (both hull and integrated tanks). The method according to the invention allows the reuse of the tank module after decomposition and the relatively easy disassembly of the tanker after a period of use in other vessels.

In the method according to the invention, the tank module can also be replaced by another tank module of another internal design, which is considered desirable, but is not possible in tankers where the tanks are an integral part of the structure. For example, it may be necessary to install a tank module with more or fewer separate tanks to meet changing market needs. Increasing or decreasing the number of segregations is very difficult in tankers with integrated tanks, but relatively easy when only tank modules are changed. This makes the tanker more resilient. In the method according to the invention, the single tank module comprises at least one but preferably a plurality of separate cargo tanks.

In addition, the tank module can also be reused when the tanker hull has reached its end of life but the tank module has not yet reached its end of life. This can be applied, for example, when the tanker hull is damaged, as well as when regular or environmental regulations are changed for tankers that require extensive work on the tanker's orhardt. The tank module can be removed from a damaged or non-compliant hull and installed in a hull that follows environmental or safety regulations that are changed at a much lower renewal cost than conventional tanks with integrated tanks . This can also be applied where there are commercially favorable results, for example, when it is commercially desirable to change the hull rather than the new engine technology being continued with a less efficient propulsive hull.

In the method according to the invention, the tank module is preferably installed in the tanker as an independent tank module by supporting the tank module within the dock allowing relative movement between the dock and the tank module. The tank module is preferably supported by the tank module support members to allow slight movement of the tank module relative to the sides of the dock and to provide gaps between the support surfaces but preferably retaining keys It is possible to prevent excessive movement.

In addition, mounting the tank modules into the hatch opening of the dock allows the tank modules to extend over the hatch openings, thereby providing a larger storage space within the same dock space while the modules extend upward, where the main deck can be different : The tank module forms part of the main deck. In the method according to the invention, the hatch opening of the dock is closed by the tank module.

A water tight seal is preferably provided between the perimeter of the hatch opening and the tank module to prevent the ingress of water to allow relative movement between the perimeter of the opening of the dock and the tank modules disposed therein, Lt; RTI ID = 0.0 > and tank modules. ≪ / RTI >

In addition, the method according to the invention allows the standardization of both the hull and tank modules. Such standardization allows repeated use of the same basic design for hulls and modules when building a series of tankers. Such repeated use of a single hull design and tank module design reduces the drying cost of a single tanker.

In addition, in the method according to the present invention, the hull of the pre-fabricated dry bulk carrier is preferably a recipient vessel for the tank modules (with relatively few modifications) due to the nature of the installed modules, Lt; / RTI > Due to the structural independence of the tank module in the pail, none of the structure of the hull or the structure of the tank module is significantly affected by the installation of the tank modules in the pail. As a result, dry bulk carriers and tank modules can be manufactured separately.

In addition, if the dry bulk cargo ship is newly built, the vessel can become a standard design. Such a vessel may be made repeatedly to assemble a plurality of different tankers. Repeated fabrication of such vessels would significantly reduce costs.

Dry cargo ships, such as bulk carriers, for the carriage of dry bulk cargo are more generally dried than chemical parcel tankers. As a result, such dry bulk carriers can be built for a small cost.

A further advantage of the method according to the invention is that the tank module can be removed through the hatch openings after a period of use of the tanker. After removal of the tank module, an alternative tank module may be installed through the hatch openings in the dock. Instead, or additionally removed tank modules are placed in the dock of another cargo ship. Therefore, a replacement module is installed and the tanker can continue using it without delay while the original tank module is being repaired.

In chemical tankers, the process according to the present invention is generally designed to produce chemical tankers that are specially constructed with structurally integrated tanks of fixed numbers for a particular market to meet the needs of a particular market desirable.

As a result, the chemical tankers of the same design are generally made in small series by a few specialized ship manufacturers. The method according to the invention allows less specialized vessels to build cargo ships of standard design with more series and install tank modules with internal design for a specific market.

Modification of chemical fractional tankers with structurally integrated tanks to meet changing market requirements in general is impossible without significantly altering the hull. In view of the large costs of such large variations, operators of known chemical compound tankers generally do not modify chemical compound tankers and can lead to less efficient use of the tankers. The relatively easy replacement of tank modules for tank modules of other internal designs allows for more efficient use of the tanker during its lifetime in the case of changing markets using chemical segmented tankers.

The most difficult cargoes, such as mountains, can only be transported in tanks of chemical tankers made of stainless steel. Stainless steels are less susceptible to corrosion than hull-fabricated steels, and stainless steel tanks in chemical-tanks are suitable for reuse when the hull reaches its end of life. As described above, the method according to the present invention facilitates reuse of tank modules. This makes the method according to the invention preferable.

In a preferred embodiment of the method according to the invention, the hull is arranged with a plurality of holds, and one tank module is arranged in each hold. Each tank module may have a different number of cargo tanks. The general dimensions of the hull are approximately 180 m long, approximately 32 m wide, and approximately 15 m deep. The typical number of pontoons and tank modules is five.

The invention further provides a tanker, preferably a segmented tanker,

A cargo ship having a hull having at least one berth accessible through a hatch opening; And

A stand-alone tank module including a plurality of cargo tanks;

/ RTI >

The tank module is structurally independent of the tank module and hull and is installed in the dock so that the tank module is removable through the hatch openings of the dock after the tanker has been in use.

Preferably, a plurality of holders are disposed in the hull, and one tank module is disposed in each hold. A single tank module has at least one, preferably a plurality of separate cargo tanks.

As described above for the method of the present invention, the tanker according to the present invention permits reuse of one of the hull or tank modules after the relatively easy disassembly and disassembly of the tanker after its use period.

According to the invention, the tank module seals the hatch opening of the dock. With respect to the method according to the invention for closing the hatch opening of the dock with the tank module as described above, the need for a main deck is eliminated, the tank module is allowed to extend over the hatch openings, The need for maintenance conduits is eliminated.

A water resisting construction is preferably provided between the perimeter of the hatch opening and the tank modules to allow relative movement between the perimeter of the hatch opening of the dock and the tank modules disposed therein, Allows relative movement between modules. In its preferred embodiment, the water resistant structure includes a flexible seal member that seals the gap between the periphery of the hatch opening and the tank module.

The cargo ship in accordance with the present invention includes a main deck in which at least one hatch opening of the dock is located, and a fitting disposed on the main deck for loading, unloading, and / or servicing cargo tanks of the tank module. To load and unload, the equipment includes conduits to load the liquid to be transported into the cargo tanks of the tank module and to unload the liquid from the cargo tanks after transport.

Placing the equipment on the main deck for loading, unloading and / or servicing cargo tanks of at least one tank module, such as conduits providing a liquid connection, eliminates the need for such equipment under the main deck. Therefore, placing the equipment on the main deck provides a relatively easy access to the equipment. In addition, placing the equipment on the main deck for loading, unloading and / or servicing the cargo tanks of at least one tank module may be provided with relatively small deformations to provide a pre-fabricated or modified cargo ship with such equipment , And relatively easy to change the equipment after its use period.

In its preferred embodiment,

A plurality of rigid pipelines fixedly mounted on the main deck; And

A plurality of flexible conduits between the rigid pipelines and the tank modules and the rigid pipelines for providing a liquid connection between the cargo tanks of the tank module;

.

Rigid pipelines fixedly positioned on the main deck in such a fitting provide flexible placement of pipelines on the main deck while flexible ducts such as flexible hoses or flexible pipes are fixedly positioned on the tank module and main deck Allowing relative movement between rigid pipelines.

Rigid pipelines can be placed next to the hatch openings. This allows for placing rigid pipelines on the main deck prior to placing the tank module into the pod, for example during the construction of a cargo ship, and placing the rigid piping in place when removing the tank module from the pod . Instead, rigid pipelines are placed on the tank module disposed within the pail. This requires placing rigid pipelines after placing the tank modules in the pail and removing the rigid piping before removing the tank module from the pail, but for rigid pipelines relative to the space available next to the hatch openings It is preferable in that a wider space is available.

In preferred embodiments, rigid pipes are disposed adjacent to at least one pod and a pile manifold is disposed on the main deck adjacent to the hatch openings of the at least one pod, and the pod manifold comprises a pod manifold And a plurality of manifold connectors for connecting the flexible conduits to each of the rigid pipelines, wherein each hold manifold connector is in fluid communication with one of the rigid pipelines.

Such equipment may be placed on the main deck before the tank module is placed in the dock and allows easy connection of the tank within the tank module to the vessel loading / unloading manifold via the dock manifold after placing the tank module in the dock .

Having the tank module manifold adjacent to the pail manifold allows the manifold connector of the pail loading / unloading manifold to be connected to the manifold of the tank module loading / unloading manifold by a relatively short flexible conduit after placement of the tank module in the pail. Facilitates connection of the tank module to rigid piping by easy connection to a folded connector. The tank module manifold may be placed on the tank module during fabrication of the tank module.

Such equipment allows the loading and unloading of cargo tanks of tank modules from the central point on the main deck. Preferably, each cargo tank of the tank module is connected to the ship loading / unloading manifold via a dedicated rigid pipeline. This keeps the other liquids perfectly separated. Instead, the number of rigid pipelines for loading / unloading is smaller than the number of separate cargo tanks. In such cases a rigid pipeline is used to load / unload a plurality of tanks. This requires fewer rigid pipes to be placed on the main deck. After loading / unloading one tank, the rigid pipeline is disconnected from the loaded / unloaded tank and connected to the tank to be loaded / unloaded. The embodiments described herein, which include a tank manifold, and optionally a tank module manifold adjacent the tank manifold, when rigid lines are shared between tanks for loading and unloading, are particularly useful for easy connection of flexible conduits And separation is allowed.

In a further preferred embodiment of the tanker according to the invention at least one of the rigid pipelines is connected to a maintenance facility which is remote from at least one dock. Such equipment allows maintenance of cargo tanks of the tank module from the central maintenance facility. Such a central maintenance facility provides maintenance liquids such as, for example, compressed air, nitrogen, water, and / or heating / cooling fluids.

In a further preferred embodiment of a tanker according to the invention comprising a fitting on the main deck,

At least one deckhouse module disposed on the main deck;

At least one conduit providing a liquid connection between the deckhouse module and the tank module;

.

In a further preferred embodiment of the tanker according to the invention, the tank module preferably has a stand-alone structure comprising an external framework, including longitudinal and transverse webs. The outer skeleton allows less reinforcing elements inside the tank module. As a result of the external skeleton, there is a space between the walls of the dock where the tank module is placed and the walls of the tank module. This space can be used for the application of insulating materials.

Because the tank module and hull are structurally independent in accordance with the present invention, there is a greater degree of freedom of design for the structure of the tank module.

In a further preferred embodiment of the tanker according to the invention the tank module comprises walls surrounding the inner space, preferably the inner space is preferably divided in the plurality of tanks by the inner walls.

In its preferred embodiment, the walls of the tank module may be provided with a rigid stainless steel or less expensive clad stainless steel.

The present invention further provides a cargo ship to provide a tanker according to the present invention as described above, wherein at least one dock accessible through the hatch opening includes a hull disposed therein, The tank module is arranged to be disposed in the dock through the hatch openings so that the tank module and the hull are structurally independent and the tank module is removable through the hatch opening of the dock after the use of the delimited tanker. The cargo ship as described above in connection with the method according to the present invention is preferably a modified dry bulk line. Instead, the cargo ship is specially constructed to provide the tanker.

The present invention further provides a stand-alone tank module for providing a tanker according to the present invention and is arranged to be disposed within the hull dock of the cargo ship so as to be accessible to the dock through a hatch opening to provide a tanker, And the tank module is removable through the hatch opening of the dock after the tanker has been in use.

Are included herein.

The invention will become more apparent from the following description with reference to the accompanying schematic drawings, in which: FIG. Non-limiting embodiments of the tanker and method according to the present invention are illustrated in the drawings. The drawings are as follows.
1 shows a perspective view of an embodiment of a tanker according to the invention.
2 shows a perspective view of an embodiment of a tanker system comprising the tanker of FIG.
Figures 3-7 illustrate in a perspective view the sequential steps in an embodiment of the method of drying a tanker according to the present invention.
Figures 8 and 9 show in detail a perspective view of an embodiment of an interface between a tank module and a hatch opening in a tanker according to the present invention.
Figure 10 shows a cross-sectional view of an embodiment of a tanker according to the invention.
Figure 11 schematically shows an embodiment of a deck fitting of a tanker according to the invention.
Figure 12 schematically shows a further embodiment of a deck fitting of a tanker according to the invention.

Figures 1 and 2 illustrate tankers, in particular a section tanker (1). The partitioned tanker includes a plurality of holds 7, a cargo ship 3 including a hull 5 in which five holds in the illustrated embodiment are disposed, The dock is accessible through a hatch opening (9). The partitioned tanker 1 further comprises a plurality of independent tank modules 11 disposed in the holds 7, five independent tank modules in the illustrated embodiments. Each tank module 11 disposed in the pod closes the hatch opening 9 of the pod 7 where the tank module 11 is disposed.

In Figure 2 the independent tank module 11a lifts the tank module 11a out of the dock 7a in the direction of arrow A without disassembly of the tank module 11a and without removal or deformation of the hatch openings 9a, And is removed from the hold 7a. Each of the stand-alone tank modules 11a, 11b, 11c, 11d, and 11e is removably disposed in one of the holds 7 through its hatch opening 9.

The independent tank modules 11 are provided with transverse external webs 15 and longitudinal external webs 13 disposed on the exterior walls 17 of the tank module 11, do. This external webbing is part of the self supporting structure of the stand-alone tank modules 11. The walls 17 surround an inner space in which a plurality of tanks are formed. One tank may be formed in a plurality of tanks or tank modules separated by inner walls.

After removal, the stand-alone tank module 11a can be placed in the dock of another cargo ship to form another compartmental tanker. The replacement independent tank module 11f may be disposed in the empty dock 7a of the cargo ship 3. Alternate stand-alone tank modules 11f may be of different internal designs and may, for example, include more or less separate cargo tanks.

Figures 3-6 illustrate a modification of the pre-build bulk-carrier 19 of a standard design to a cargo ship 3 configured to assemble the segmented tanker 1 shown in Figures 1 and 2, Lt; / RTI >

In Figure 3 it is shown that the bulk line 19 includes a super structure 21 disposed at the hull 5 and at the aft end of the hull. Five hatches are placed in the hull. Each of the holds 7 is accessible through a hatch opening 23, i. E. A hermetically opening, in particular in the main deck 25, which leads to the dock. The hatch openings 23 are closed in Fig. 3 by the dock covers 27.

In Fig. 4, it is shown that dock covers 27 are removed to deform into bulk line 19. It is further shown in Figure 4 that a portion 25a of the main deck 25 and hatch coaming 29 are provided. The hatch coamings are raised frames disposed around the periphery of each hatch opening, forming a support for the dock covers and strengthening the edges of the hatch openings.

5 shows the removal results of the dock covers 27, the hatch coamings 29 and the portion 25a of the main deck 25, the openings in the main deck 25 are increased in size and the main deck 25 Do not extend further inward past the side walls 31 of the holds 7.

In Fig. 6 it is shown that the new hatch coamings 33 are then arranged around the periphery of the increased size apertures. The new hatch coamings 33 are of the same height as the side walls 31 of the holds 7 and the tank modules 11 are supported by the hatch 7 through the created hatch openings 9 of increased size, Can be disposed in the holders (7) so as to be closely fitted to the usable space.

In Fig. 7, the cargo ship 3 obtained from such a modification is shown. The compartmentalized tanker 1 shown in Fig. 1 from the cargo ship 3 and the plurality of independent tank modules 11 can be assembled by placing the independent tank module 11 in each pail 7. [ Figure 7 shows a further embodiment of the invention in that it is arranged in one of the holds 7a by lowering the stand-alone tank module 11a into the hold 7a in the direction of arrow B through a hatch opening 19a providing access to the hold Respectively. The independent tank module 11a is lowered into the dock 7a through the hatch opening 19a without removal or modification of the hatch opening 19a. After disposing the independent tank module 11a in the hold 7a, it can be lifted out of the hold again without disassembly of the tank module 11a and without removal or deformation of the hatch opening 19a.

Figures 8 and 9 show that the stand-alone tank module 11 closes the hatch openings of the dock where it is placed. A flexible seal 34 is disposed between the flange 35 of the tank module and the hatch coamings 29 to seal the hatch openings. As shown, the tank module 11 extends over the hatch openings. The seal 34 needs to be flexible because the tank modules 11 are supported in the docks in such a manner that relative movement between the hull 5 and the independent tank modules 11 is allowed.

A sectional view of the hull 5 of the cargo ship 3 is schematically shown in Fig. In particular, in FIG. 10, the tank module support members 37, 39 and 41 are disposed between the bottom wall 43 and the side walls 31 of the hold 7 and the tank module 11 is disposed between the tank module Is shown to be disposed within the dock 7 to support the ship. Two types of tank support members are shown disposed on the bottom wall 43 of the pail 7. The first type of tank support members 37 support the tank module 11 in the vertical direction. Support pads 45 are provided between the outer web 15 of the tank module 11 and such support members 37 to permit relative movement between the tank module 11 and the hull 5 within the horizontal plane / RTI > The tank module support members 39 disposed on the bottom wall 43 permit relative movement between the tank module 11 and the hull 5 in the longitudinal direction of the hull 5 in a horizontal plane, In the lateral direction (C). The longitudinal beams 47 disposed on the transverse webs 15 of the tank module 11 extend between the two support surfaces 39a and 39b of the second type of support members. The relative movement between the tank module 11 and the hull 5 in the horizontal direction C in the horizontal plane is arranged between the outer web 15 of the tank module 11 and the side walls 31 of the holds 7 Tank module support members 41, as shown in Fig. Between the support beams 39 and the support surfaces 39a and 39b of the tank module support members 39 and between the outer web 15 and the support surface 41a of the tank module support members 41 By allowing a small gap, a slight relative movement between the tank module 11 and the hull 5 in the horizontal direction C in the horizontal plane is allowed, but excessive movement is restricted. Tank module support members similar to the tank module support members 41 are disposed on the sidewalls of the holds 7 not shown in Fig. A small gap is formed between the tank module 11 and the hull 5 in the longitudinal direction of the hull 5 in the horizontal plane by again allowing a small gap between the support surfaces of the tank module 11 and the tank module support members Relative movement is allowed, but excessive movement is limited.

The space 49 available between the outer walls 17 of the tank module 11 and the walls 31, 43 of the dock allows for the application and / or inspection of the insulation.

Figure 11 schematically shows the outfitting of the compartmentalized tanker 1 for loading, unloading and servicing the tank modules 11. The equipment is placed on the main deck 25.

The equipment for loading and unloading includes a hold load / unload manifold 51 disposed on the main deck 25 adjacent to the respective hatch openings for the respective holds 7. Dock loading / unloading manifold 51 includes a plurality of manifold connectors.

The ship loading / unloading manifold 53 is disposed on the main deck 25 away from the berth loading / unloading manifold 51. The ship loading / unloading manifold is used to connect conduits to a ship loading / unloading manifold that provides a liquid connection between the ship loading / unloading manifold 53 at the shore and the loading / And a plurality of manifold connectors.

A large number of load / unload rigid pipelines 55 are fixedly positioned on the main deck 25 beside the docks so that the manifold connectors 53 of the ship loading / unloading manifold 53 And the manifold connectors of the berth loading / unloading manifold 51. [

Each tank module 11 includes a tank module loading / unloading manifold 57 located adjacent to the loading docking / unloading manifold 51 of the dock where the tank module 11 is disposed. The tank module loading / unloading manifold 57 includes a plurality of manifold connectors. The connectors are fluidly connected to the tanks of the tank module 11 by conduits 59. The illustrated tank modules 11 include four tanks 61, 63, 65 and 67, respectively.

Flexible conduits 71, such as flexible hoses, are connected to tank modules 61, 63, 65, 67 and tank loading / unloading manifolds 53 to provide a liquid connection between tanks 61, 63, 65, 67 of individual tank modules 11, And is connected between the manifold connectors of the loading / unloading manifold 57 and the loading / unloading manifold 51. [

In Fig. 11, it is shown that the tank module 11a on the left side includes four tanks 61, 63, 65, 67. The four loading / unloading pipelines 55a, 55b, 55c and 55d are arranged between the ship loading / unloading manifold 53 and the loading / unloading manifold 51, and is connected to the ship loading / unloading manifold by a dedicated pipeline.

The tank module 11b on the right side also includes four tanks 61, 63, 65 and 67. However, only two loading / unloading pipelines 55e and 55f are disposed between the berth loading / unloading manifold 51 and the ship loading / unloading manifold 53 so that only two tanks are simultaneously loaded / And may be connected to the manifold 53. After loading / unloading the tank, one of the flexible conduits 71a and 71b shown in FIG. 11 is disconnected from the manifold connector of the tank module loading / unloading manifold 57 to separate the loaded / unloaded tank . The flexible conduits 71a and 71b are then connected to the other manifold connectors of the tank module loading / unloading manifold 57 to connect the other tank to the ship loading / unloading manifold 53 with a liquid. The use of both tanks for loading / unloading consists of only one shared loading / unloading pipeline.

Equipment of the partitioned tanker 1 may be provided with dedicated loading / unloading pipelines for each tank module 11. Alternatively, the equipment of the partitioned tanker 1 may be provided with shared loading / unloading pipelines for each tank module 11. [

11, the fitting includes a hold service manifold 73 disposed on the main deck 25 adjacent to the hatch openings of the respective holds 7 for servicing . The primer maintenance manifold 73 includes a plurality of manifold connectors. The plurality of maintenance pipelines 75a and 75b are fixedly disposed on the deck next to the skipper and are provided with an onboard service facility 77 for providing, for example, maintenance liquids such as compressed air, N2 _, And the manifold connectors of the bin maintenance manifold 73. The manifold < / RTI >

Each tank module 11 includes a tank module service station 79 located adjacent to the dock maintenance manifold 73 of the dock where the tank module 11 is located. The tank module maintenance station 79 includes a plurality of manifold connectors.

The flexible conduits 81 are connected to the manifold connectors of the tank module maintenance station 79 and the manifold connectors 72 of the dock maintenance manifold 73 to provide a liquid connection between the tank module 11 and the maintenance facility 77. [ Respectively.

As shown in FIG. 11, the equipment further includes a deck house module 83 that is removably disposed on the main deck 25 for maintenance. Deckhouse modules may accommodate, for example, secondary heating systems, nitrogen bottle racks, cooling systems, tank module dehumidifiers, and other equipment.

In FIG. 11, the deckhouse module 83 is disposed between the two holds 7. Flexible conduits 85 connect the deckhouse module 83 to the tank module maintenance stations 79 of the two tank modules 11a, 11b.

Flexible conduits 71 and 81 include tank modules 11a and 11b which are allowed to move relative to the hull and main deck 25 and rigid pipelines 55 and 75 fixedly disposed on the main deck 25 Lt; / RTI > To remove the tank module 11 from the hold, the flexible conduits 71 and 81 are simply detached from one of the manifolds, after which the tank module 11 can be lifted out of the hold where it is placed .

In Fig. 12, an alternative fitting for the sectional tanker 1 is shown. In this alternative equipment the rigid loading / unloading pipelines 55 are mounted on the main deck 25 on the supports disposed between the tank modules 11 and between the piles in which the tank modules 11 are disposed As shown in Fig. For each tank module 11, each tank 61, 63, 65, 67 is connected to the vessel loading / unloading manifold via a dedicated loading / unloading pipeline 55. Each tank 61, 63, 65, 67 is connected to its dedicated loading / unloading pipeline 55 by a flexible conduit 87.

The detailed description and drawings merely illustrate the principles of the present invention. Therefore, the ordinary skilled artisan will be able to devise various arrangements which, although not explicitly described or shown herein, embody the principles of the invention and are included within its spirit and scope.

In addition, all examples cited herein are expressly intended only for educational purposes, primarily to help the reader understand the concepts contributed by the inventor (s) to develop the art and principles of the invention, It is to be understood that there are no limitations on the specifically mentioned examples and conditions. In addition, it is intended that all speci fi c examples of the principles, aspects, and embodiments of the invention cited herein as well as specific examples thereof be encompassed by the equivalents thereof.

1: Separate tanker
3: Cargo ship
5: Hull
7: Wharf
9: Hatch opening
11: tank module
17: outer wall
19: Bulk wire
21: Superstructure
23: Hatch opening
25: Main deck
27: Dock cover
33: Hatchcamming
37, 39, 41: support member
55: conduit
61, 63, 65, 67: tank

Claims (25)

In a tanker, preferably a sectioned tanker, construction method,
Providing a hull having a main deck and disposed within at least one dock accessible within the main deck via a hatch opening;
Providing a self-contained tank module comprising a plurality of cargo tanks;
Disposing the stand-alone tank module in the dock to provide a tanker;
Lt; / RTI >
Wherein the tank module is disposed within the dock so that the tank module and the hull are structurally independent and the tank module is removable through the hatch opening of the dock after use of the tank,
Once the size and shape of the tank module are disposed within the reservoir, a portion of the tank module disposed within the reservoir is adapted to the size and shape of the reservoir,
The hatch opening of the dock is closed by the tank module,
The method comprises:
Placing a piece of equipment on the main deck, the piece of equipment including ducts for loading liquid to be transported into the cargo tanks of the tank module and for unloading the liquid from the cargo tanks after transportation;
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The method according to claim 1,
The step of disposing the tank module within the dock so that the tank module and the hull are structurally independent,
Supporting the tank module within the dock so that relative movement between the dock and the tank module is allowed;
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3. The method according to claim 1 or 2,
The hull is a hull of a pre-built dry bulk cargo ship disposed within the at least one dock accessible through the hatch opening and the tank module is located within the dock through the hatch opening Lt; / RTI >
3. The method according to claim 1 or 2,
The step of providing a hull having a dock within at least one dock accessible through the hatch opening,
Including a step of deforming a cargo ship dried for bulk transport of the dry cargo, such as a bulk line, comprising at least one cargo accessible through a hatch opening and positioning the independent cargo tank module in the cargo holds to provide the tanker Lt; / RTI >
5. The method of claim 4,
Wherein said cargo ship to be modified includes a hull disposed within at least one dock accessible through a hatch opening, said step of modifying the cargo line includes the step of unfolding a hatch opening of the dock of the cargo ship to be modified, Wherein the periphery is substantially flush with the sidewalls of the dock.
6. The method according to any one of claims 1 to 5,
Further comprising removing the tank module through the hatch opening after a period of use of the tanker.
The method according to claim 6,
Further comprising disposing a replacement tank module in the dock through the hatch opening after removing the tank module.
8. The method according to any one of claims 1 to 7,
A plurality of holders are disposed in the hull,
Wherein one tank module is disposed in each of the docks.
In a tanker, preferably a compartmental tanker,
A cargo ship having a main deck and including a hull disposed in at least one dock accessible within the main deck through a hatch opening; And
A stand-alone tank module including a plurality of cargo tanks;
Lt; / RTI >
Wherein the tank module is structurally independent of the tank module and the hull, the tank module being disposed in the dock so as to be removable through the hatch opening of the dock after use of the tank,
Once the size and shape of the tank module are disposed within the reservoir, a portion of the tank module disposed within the reservoir is adapted to the size and shape of the reservoir,
The hatch opening of the dock is closed by the tank module,
The tanker,
A fitting disposed on the main deck, the duct comprising conduits for loading liquid to be transported into the cargo tanks of the tank module and for unloading the liquid from the cargo tanks after transport;
Further comprising a tanker.
10. The method of claim 9,
Tank module support members are disposed between the dock and the tank module to support the tank module within the dock, and wherein the tank module support members are configured to allow relative movement between the dock and the tank module.
11. The method according to claim 9 or 10,
The peripheral portion of the hatch opening being substantially flush with the side walls of the dock.
12. The method according to any one of claims 9 to 11,
A water resistance structure is provided between a periphery of the hatch opening and the tank module to permit relative movement between a periphery of the hatch opening and the tank module, And a flexible seal that seals the gap between the top deck of the tank.
13. The method according to any one of claims 9 to 12,
The above-
A plurality of rigid pipelines fixedly mounted on the main deck and disposed on the tank module disposed in the at least one holds or next to the at least one holds; And
A plurality of flexible conduits between the tank module and the rigid pipelines to provide a liquid connection between the tank module and the rigid pipelines;
.
14. The method of claim 13,
Wherein a dock manifold is disposed adjacent the hatch openings of the at least one dock on the main deck and the dock manifold includes a plurality of manifold connectors for connecting the flexible conduits to the dock manifold, Each pail manifold connector being in liquid communication with one of said rigid pipelines.
15. The method of claim 14,
A tank module disposed within the dock includes a tank module manifold positioned adjacent the dock manifold and the tank module manifold includes a plurality of manifold connectors for connecting the flexible conduits to the dock manifold tanker.
16. The method according to any one of claims 13 to 15,
Wherein at least one rigid conduit is fluidly connected to the ship loading / unloading manifold located on the main deck away from the at least one holds.
17. The method according to any one of claims 13 to 16,
Wherein at least one of the rigid pipelines is connected to the maintenance facility away from the at least one dock.
18. The method according to any one of claims 9 to 17,
The above equipment is, for maintenance,
At least one deckhouse module, preferably removably disposed on the main deck; And
At least one conduit providing a liquid connection between the deckhouse module and the tank module;
.
19. The method according to any one of claims 9 to 18,
The tank module preferably has a self-contained structure including an external framework, including longitudinal and transverse webs.
20. The method according to any one of claims 9 to 19,
The tank module includes walls surrounding the interior space, preferably the interior space is divided by a plurality of tanks, preferably by inner walls.
21. The method of claim 20,
Wherein the walls of the tank module are made of stainless steel.
22. The method according to any one of claims 9 to 21,
A plurality of pontoons are disposed in the hull,
A tanker in which one tank module is placed in each dock.
23. A cargo ship for providing a tanker according to any one of claims 9 to 22,
A hull having a main deck and disposed in the at least one berth accessible through the hatch openings in the main deck,
Wherein the dock is provided to place a stand-alone tank module through the hatch opening in the dock to provide a compartmental tanker such that the tank module and the hull are structurally independent and that the tank module, after a period of use of the tank, Removable through a hatch opening,
A cargo ship on which cargo tanks of the tank module are loaded on the main deck and fittings comprising conduits are disposed for unloading the liquid from the cargo tanks after transportation.
24. The method of claim 23,
Modified bulk ship cargo ship.
24. A stand-alone tank module for providing a tanker according to any one of claims 9 to 24,
A plurality of cargo tanks, accessible through the hatch openings to be disposed within the hull dock of the cargo ship and to be accessible to the dock for providing a tanker, the tank module and the hull being structurally independent, The tank module being removable through the hatch opening of the dock after a period of use of the tank module.

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