A LNG tank container berthing and reloading ship in suitable waters and a reloading method

Abstract

A LNG tank container berthing and transshipment ship and transshipment method in suitable waters, wherein a lifting device is arranged on the hull, the lifting device comprises a transverse lifting device and a longitudinal lifting device, a plurality of columns are arranged on both sides of the hull, the transverse lifting device is arranged on the two columns, and the longitudinal lifting device is arranged between the columns on both sides of the hull, a conversion platform is arranged on the main deck of the hull, a plurality of warehouses are arranged around the conversion platform, the hull structure is double-bottom and double-side, and a plurality of independent LNG tank container cabins are arranged; two fixed transverse bridge-type lifting beams and one longitudinal fixed bridge-type lifting beam are arranged above the main deck, the transverse bridge-type lifting beam and the longitudinal bridge-type lifting beam are supported by pillars on the left and right sides, box-type connecting beams are arranged at the front and rear ends of the longitudinal lifting beam, the three beams are connected into an enclosed whole, the rapid supply of LNG fuel for LNG loading application is realized, and the LNG fuel is economical and applicable, and is easy to use. Compared with other LNG fuel supply modes, the economic performance is superior and the safety is higher.

Description

Technical Field

[0001] The invention relates to the field of LNG energy ship loading, and in particular to an LNG tank container berthing and loading ship suitable for water areas and a loading and loading method. Background Art

[0002] LNG is the abbreviation of liquefied natural gas (LNG), the main component of which is methane. It is recognized as the cleanest fossil energy on earth. It is colorless, odorless, non-toxic and non-corrosive. There are many inland ships in my country, and the water transportation potential is huge. The fuel storage method used by LNG fuel-powered ships in the prior art is fixed storage tanks. Since fixed storage tanks rely on shore filling stations or shore filling pontoons for filling, for example, a mobile filling ship recorded in Chinese patent document CN106428445A adopts a filling method for fuel supply. The construction of filling stations faces difficulties in site selection, huge investment, and long approval period, which leads to a slow increase in the number of LNG filling stations put into use at this stage. In the short term, it cannot meet the filling needs of LNG fuel-powered ships that have already started to be used in the water transportation industry. This is the main obstacle to the rapid development of LNG fuel-powered ships;

[0003] LNG is abundant in foreign countries and my country imports a large amount of it. The current transportation market adopts a transportation mode of large transport ships + large receiving stations. This mode has long been controlled by large groups, and the infrastructure construction period is long, the investment is huge, and the threshold is high. At present, small and medium-sized batches of LNG trade delivery require a more flexible way to directly reach users through land and water multimodal transport. Existing LNG tank container transportation and transshipment require the construction of large-scale land or water transshipment stations, which have a long construction period and huge investment. There is no economical and applicable LNG tank container transshipment mode and loading application method.

[0004] Due to the great difference in water level caused by drought and flood, especially in the Yangtze River and the Three Gorges Reservoir, the water level difference can reach more than 30 meters. To build a shore-based refueling station, because it needs to adapt to the large difference in water level changes, the construction investment is very huge, and the policy of "jointly protecting the environment and not engaging in large-scale development" faces difficulties in shoreline approval. In addition, the construction of shore-based refueling stations requires the construction of piles, columns and embankments in rivers, which will seriously affect the safety of flood discharge. Its approval involves fire protection, flood control, land, housing and construction departments. For example, the shore station of the Beijing-Hangzhou Grand Canal needs to be built inside the embankment. Therefore, the flood control evaluation cannot be passed at all; shoreline resources are even more "hard to come by"; the land of shoreline refueling stations cannot be "bid and auctioned", and the waterway does not bid, etc. Many factors also make it difficult to invest in shore-based refueling stations. Summary of the invention

[0005] The main purpose of the present invention is to provide a LNG tank container berthing and transshipping ship and transshipping method in suitable waters, which does not occupy shoreline resources and can be realized by occupying only one berth in suitable waters. The LNG tank container arriving from water transport is directly unloaded to the ship, and the LNG clean energy is supplied to the LNG fuel-powered ship, and the method of transshipping LNG tank containers is adopted.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an LNG tank container berthing and transshipment ship in suitable waters, comprising a hull, a lifting device is arranged on the hull, the lifting device comprises a transverse lifting device and a longitudinal lifting device, a plurality of columns are arranged on both sides of the hull, the transverse lifting device is arranged on two columns, and the longitudinal lifting device is arranged between the columns on both sides of the hull;

[0007] A conversion platform is provided on the main deck of the ship, and a plurality of warehouses are provided around the conversion platform.

[0008] In the preferred embodiment, there is at least one horizontal lifting device, and the structure of the horizontal lifting device is as follows: the columns are high columns, and there are at least four high columns on both sides of the hull. At least one saddle-type connecting beam is provided on the four high columns, and a horizontal lifting heavy beam that moves horizontally is provided between the saddle-type connecting beam and the high columns. The horizontal lifting heavy beam is provided with at least one horizontal lifting trolley that moves horizontally, and the horizontal lifting trolley is provided with a horizontal winch lifting device for lifting.

[0009] In a preferred embodiment, cantilever sections are provided at both ends of the transverse crane beam, and the cantilever sections at both ends are located away from the ballast tank and extend out of the hull.

[0010] In a preferred embodiment, the cantilever sections at both ends extend out of the hull to a length greater than or equal to the width of the LNG ship.

[0011] In the preferred embodiment, a transverse fixed beam is provided between the transverse crane heavy beam and the high column;

[0012] A top column is arranged at the upper end of the high column, and a plurality of inclined cables are arranged on the top column, and the inclined cables are respectively connected to the cantilever section and the non-cantilever section of the transverse crane heavy beam.

[0013] In the preferred embodiment, the structure of the longitudinal lifting device is as follows: a longitudinal fixed beam is provided on the high columns on both sides of the hull along the longitudinal direction, a longitudinal crane beam is provided on the longitudinal fixed beam, a plurality of longitudinal lifting trolleys are provided on the longitudinal crane beam, a longitudinal lifting trolley is provided on the longitudinal lifting device for lifting a longitudinal winch, and the height of the longitudinal fixed beam is at least the height of three tank containers.

[0014] In the preferred embodiment, the columns are short columns, which are arranged at both ends of the hull, and both ends of the longitudinal crane beam are arranged on the short columns;

[0015] A ladder is provided on the longitudinal crane beam.

[0016] In the preferred embodiment, a pump room is provided at one end of the hull, a plurality of accommodation rooms and an operation room are provided on one side of the pump room, and a plurality of anchor windlasses are provided on the hull;

[0017] A plurality of mooring piles are arranged around the outer periphery of the hull.

[0018] In the preferred embodiment, a container middle wall is provided in the middle of the hull, and bulwarks are provided on the ballast tanks on both sides of the hull. The bulwarks and the container middle wall form a tank body, and a plurality of guide rails are provided inside the tank body.

[0019] The guide rail structure is a vertical right-angle block. The guide rail is arranged at the four corners of a single warehouse body, and the end of the guide rail is provided with a guiding inclined surface.

[0020] The method includes:

[0021] S1. Drive the LNG carrier to the side of the ballast tank of the ship and fix the LNG carrier with mooring piles;

[0022] S2, control the horizontal lifting trolley to move to the top of the LNG ship, and use the horizontal hoisting device to lift the tank container to the transfer platform on the hull;

[0023] S3. The longitudinal lifting trolley on the longitudinal crane beam moves to the top of the transfer platform, and the tank container is lifted into the warehouse using the longitudinal hoisting device;

[0024] S4. Unload the empty LNG tank container from the LNG fuel-powered ship by direct unloading, and then transport it to the LNG base station for filling.

[0025] The present invention provides a LNG tank container berthing and transshipping ship and transshipping method in suitable waters. The container transshipping ship does not occupy shoreline resources and can be realized by occupying only one berth in suitable waters. The LNG tank container arriving from water transportation is directly unloaded to the ship, and the method of transshipping LNG tank containers is adopted to supply LNG clean energy to LNG fuel-powered ships. This method can overcome the problems of difficult site construction, huge investment, and long approval time faced by filling stations in the prior art, and realize the rapid supply of LNG fuel for LNG loading applications. It is economical and easy to use. Compared with other LNG fuel supply modes, it has better economic performance and higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0027] Figure 1 This is a structural diagram of the hull and LNG ship unloading of the present invention;

[0028] Figure 2 It is a hull structure diagram of the present invention;

[0029] Figure 3 It is a left side structural diagram of the hull of the present invention;

[0030] Figure 4 The present invention Figure 3 Cross-sectional structural diagram in CC direction;

[0031] Figure 5 This is a top view of the hull structure of the present invention;

[0032] Figure 6 The present invention Figure 5 A-1 direction cross-sectional structural diagram;

[0033] Figure 7 It is a cross-sectional structural diagram of the warehouse body of the present invention;

[0034] Figure 8 This is a top view of the structure of the warehouse body of the present invention;

[0035] Fig. 9 This is a structural diagram of a tank container placed inside a warehouse of the present invention;

[0036] Fig.10 This is an enlarged structural diagram of a tank container placed inside a warehouse of the present invention;

[0037] Fig.11 This is a structural diagram of the guide slope above the guide rail of the present invention;

[0038] Fig.12 This is a schematic diagram of the arrangement of the LNG transshipment ship of the present invention on the Yangtze River trunk line;

[0039] In the figure: hull 1; ballast tank 2; LNG ship 3; cantilever section 4; inclined cable 5; transverse lifting trolley 6; transverse hoisting device 7; longitudinal crane beam 8; high column 9; longitudinal fixed beam 10; bollard 11; top column 12; saddle-type connecting beam 13; transverse crane heavy beam 14; transverse fixed beam 1401; longitudinal lifting trolley 15; longitudinal hoisting device 16; short column 17; ladder 18; staircase 19; anchor winch 20; warehouse 21; pump room 22; conversion platform 23; tank container 24; container middle wall 25; sidewall 26; guide rail 27; guide slope 2701. DETAILED DESCRIPTION

[0040] Example 1

[0041] like Figures 1 to 12As shown, a LNG tank container berthing and transshipment ship in waters suitable for berthing includes a hull 1, on which a lifting device is provided, the lifting device includes a transverse lifting device and a longitudinal lifting device, a plurality of columns are provided on both sides of the hull 1, the transverse lifting device is provided on two columns, and the longitudinal lifting device is provided between the columns on both sides of the hull 1, a conversion platform 23 is provided on the main deck of the hull 1, and a plurality of warehouses 21 are provided around the conversion platform 23. Thus, the hull 1 has a double bottom and double side structure, and is provided with a plurality of independent LNG tank container compartments, and two fixed transverse crane beams 14 and a longitudinal crane beam 8 are provided above the main deck, and the transverse crane beam 14 and the longitudinal crane beam 8 are supported by pillars on the left and right sides, and a saddle-type connecting beam 13 is provided above the transverse hoisting device 7 of the transverse crane beam 14, and pillars are provided upward to support the inclined cable 5

[0042] The front and rear ends of the longitudinal crane beam 8 are provided with short columns 17 of box-type connecting beams to connect or surround the three beams. The height of the two transverse crane beams 14 is determined by the total height of the ship above the water surface in the water area plus an appropriate margin. The height of the longitudinal beam is based on the height that can lift the three-layer high container in the container cabin. The transverse crane beam extends to the left and right sides by the length of the ship width, and the extension beam is symmetrically arranged through the middle pillar with a diagonal rod.

[0043] In the preferred embodiment, there is at least one horizontal lifting device, and the structure of the horizontal lifting device is as follows: the column is a high column 9, at least four high columns 9 on both sides of the hull 1, at least one saddle-type connecting beam 13 is provided on the four high columns 9, a horizontal crane heavy beam 14 that moves in the horizontal direction is provided between the saddle-type connecting beam 13 and the high columns 9, at least one horizontal lifting trolley 6 that moves in the horizontal direction is provided on the horizontal crane heavy beam 14, and a horizontal hoisting device 7 for lifting is provided on the horizontal lifting trolley 6. With this structure, the horizontal lifting device uses a saddle-type connecting beam 13 to fix the entire horizontal crane heavy beam 14, making the entire structure more stable and improving safety performance.

[0044] In the preferred embodiment, the two ends of the transverse crane heavy beam 14 are provided with cantilever sections 4, which are located away from the ballast tank 2 and extend out of the hull 1. With this structure, it is convenient for the transverse lifting trolley 6 to move back and forth above the deck of the hull 1 and above the LNG ship 2 to achieve the replacement of LNG tank containers. The length of the cantilever sections 4 at both ends extending out of the hull 1 is greater than or equal to the width of the LNG ship 3. With this structure,

[0045] In the preferred embodiment, a transverse fixed beam 1401 is arranged horizontally between the transverse crane beam 14 and the high column 9, and a top column 12 is arranged at the upper end of the high column 9. A plurality of inclined cables 5 are arranged on the top column 12, and the inclined cables 5 are respectively connected to the cantilever section 4 and the non-cantilever section of the transverse crane beam 14. With this structure, the transverse fixed beam 1401 is used to support and reinforce the transverse crane beam 14, and the inclined cables 5 on the top column 12 play a role in stabilizing the entire transverse crane beam 14, thereby improving the stabilization effect.

[0046] In the preferred embodiment, the structure of the longitudinal lifting device is as follows: a longitudinal fixed beam 10 is provided on the high columns 9 on both sides of the hull 1, a longitudinal crane beam 8 is provided on the longitudinal fixed beam 10, a plurality of longitudinal lifting trolleys 15 are provided on the longitudinal crane beam 8, a longitudinal hoisting device 16 for lifting a longitudinal hoisting device is provided on the longitudinal lifting trolley 15, and the height of the longitudinal fixed beam 10 is at least the height of three tank containers 24. With this structure, the longitudinal lifting device is fixed to the high columns 9 through the longitudinal fixed beams 10 on both sides, forming an integrated structure with the transverse lifting device. The height of the two transverse lifting beams is determined by the total height of the ship above the water surface in the waters where it is located plus an appropriate margin. The height of the longitudinal beam is based on the height that can lift the three-layer high container in the container cabin. The transverse lifting beam extends to the left and starboard by a length of the ship width, and the extension beam is symmetrically arranged through the middle pillar with a diagonal rod.

[0047] In the preferred solution, the columns are short columns 17, which are arranged at both ends of the hull 1, and the two ends of the longitudinal crane beam 8 are arranged on the short columns 17, and the longitudinal crane beam 8 is provided with a ladder 18. With this structure, the front and rear ends of the longitudinal crane beam 8 are provided with short columns 17 of box-type connecting beams, connecting or surrounding the three beams as a whole. The height of the two transverse crane beams 14 is determined by the total height of the ship above the water surface in the waters where it is located plus an appropriate margin.

[0048] The container cabin roof, left, right, front and back all around and central longitudinal passages are connected, and a conversion platform for the longitudinal and transverse cranes when changing tank containers is set in the center of the transverse crane beam. The through walkway is also equipped with railings.

[0049] In the preferred embodiment, a pump room 22 is provided at one end of the hull 1, and a plurality of accommodation rooms and an operation room are provided on one side of the pump room 22. A plurality of anchor machines 20 are provided on the hull 1, and a plurality of mooring piles 11 are provided around the outer periphery of the hull 1. With this structure, the anchor machine 20 is used to raise the entire hull 1 above the river surface.

[0050] The mooring bollards 11 are used to fix the LNG ship 3. The main deck is connected with passages in front, back, left and right. The stern is equipped with an anchoring and mooring area, on which the anchor and mooring machine are arranged, and a plurality of mooring bollards are arranged at the stern. A plurality of mooring bollards are arranged on the left and right sides of the bow deck. A plurality of mooring bollards are arranged on the left and right sides of the bow deck. A plurality of inclined ladders are arranged in this area: used to go down to the cabin, to the top of the LNG tank container cabin, and then to the longitudinal and transverse rail beams. A duty room, a fire equipment room, and a male and female bathroom are arranged on the port side of the bow area of ​​the main deck; a meeting room and a service hall are arranged on the starboard side.

[0051] In the preferred embodiment, a container middle wall 25 is provided in the middle of the hull 1, and bulwarks 26 are provided on the ballast tanks 2 on both sides of the hull 1. The bulwarks 26 and the container middle wall 25 form a tank body 21. A plurality of guide rails 27 are provided inside the tank body 21. The guide rails 27 are structured as vertical right-angle blocks. The guide rails 27 are arranged at the four corners of a single tank body 21, and guide slopes 2701 are provided at the ends of the guide rails 27. With this structure, the main deck hatch is surrounded by a frame structure, and the double-wall structure of the inner side extends upward to the height of three layers of containers. Each row of containers is provided with a transverse box beam or a transverse double-layer bulkhead, which forms an independent row of warehouse bodies 21 with the sidewall 26, and then between each transverse bulkhead or transverse box frame beam, each row of containers is provided with a guide rail to separate the container cabin into independent single cabins. The independent container cabin separated by the guide rail can make the LNG tank container stable when the ship is shaken or tilted by external force under the isolation of the frame, bulkhead and guide rail 27; and there is no need to fasten it, which provides a fastening-free solution for the special process of frequent direct loading and unloading of the ship's transshipment operation, and reduces the labor intensity of the staff.

[0052] Example 2

[0053] Further illustrate with reference to Example 1, Figure 1-12 The middle container cabin top, left, right, front and back all around and the middle longitudinal passages are connected, and a conversion platform 23 for the longitudinal and transverse cranes when changing tank containers is provided in the center position of the transverse crane heavy beam 14. The through walkway is also provided with a railing.

[0054] The load-bearing longitudinal fixed beam 10 of the longitudinal crane beam 8 is arranged on the inner side of the high column 9, and the required width of the longitudinal beam matches the size of the traveling mechanism of the container crane. The lifting height is preferably such that the third layer of tank containers 24 can be lifted without obstruction. When the waterway conditions do not allow, it can also be less than three layers.

[0055] The clearance height of the transverse crane beam 14 from the fully loaded waterline is based on the clearance height of the fixed buildings from the water surface greater than that of the ships in the waters regardless of the load conditions. The situation of sleeping masts; at the same time, it must be able to lift a container from the top of the longitudinal crane beam 8 from one side of the side extension beam to the other side without obstruction. A saddle-type connecting beam 13 is set above the crane of the transverse crane beam 14 and on both sides of the high column 9. The clearance height of the saddle-type connecting beam 13 is based on the fact that the transverse crane can pass under the saddle without obstruction. Left and right pillars are set above the saddle, and cross braces are set at the top of the left and right pillars, which are supported by the middle pillar. At the same time, diagonal rods are used for the left and right pillars to enhance their stability. The pillars and the extended crane beams are symmetrically arranged in a triangle by diagonal tie rods to balance the load on the extension beam. Railings are set on both sides of the transverse crane beam.

[0056] The LNG ship 3 is driven to the side of the ballast tank 2 of the ship 1 and fixed by the mooring piles 11.

[0057] The lateral lifting trolley 6 is controlled to move above the LNG ship 3 , and the tank container 24 is lifted onto the conversion platform 23 on the ship 1 by the lateral hoisting device 7 .

[0058] The longitudinal lifting trolley 15 on the longitudinal crane beam 8 moves to the top of the conversion platform 23, and the tank container 24 is lifted into the interior of the warehouse body 21 by the longitudinal hoisting device 16.

[0059] Empty LNG tank containers are unloaded from LNG fuel-powered ships by direct unloading, and then transported to LNG base stations for filling. LNG tank containers transported by LNG tank container transport ships from waterways are unloaded to each independent container compartment by direct unloading through transverse and longitudinal fixed bridge cranes, with a transverse and longitudinal conversion platform in between to change the direction of the process. LNG fuel is supplied to LNG fuel-powered ships by directly loading LNG tank containers, and empty LNG tank containers are unloaded from LNG fuel-powered ships by direct unloading, and then transported to LNG base stations for filling, realizing a "one tank to the end" cycle.

[0060] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An LNG tank container suitable for berthing and reloading ship in waters, characterized by: The hull (1) comprises a lifting device, the lifting device comprising a transverse lifting device and a longitudinal lifting device, a plurality of columns are provided on both sides of the hull (1), the transverse lifting device is provided on two columns, and the longitudinal lifting device is provided between the columns on both sides of the hull (1); A conversion platform (23) is provided on the main deck of the hull (1), and a plurality of warehouses (21) are provided around the conversion platform (23); There is at least one transverse lifting device, and the structure of the transverse lifting device is as follows: the columns include high columns (9), at least four high columns (9) are arranged on both sides of the hull (1), at least one saddle-type connecting beam (13) is arranged on the four high columns (9), a transverse lifting heavy beam (14) that moves in a transverse direction is arranged between the saddle-type connecting beam (13) and the high columns (9), a transverse lifting trolley (6) that moves in a transverse direction is arranged on the transverse lifting heavy beam (14), and a transverse hoisting device (7) for lifting is arranged on the transverse lifting trolley (6); The transverse crane beam (14) is provided with cantilever sections (4) at both ends, and the cantilever sections (4) at both ends are away from the ballast tank (2) and extend out of the hull (1); The structure of the longitudinal lifting device is as follows: a longitudinal fixed beam (10) is provided on the high columns (9) on both sides of the hull (1), a longitudinal crane beam (8) is provided on the longitudinal fixed beam (10), a plurality of longitudinal lifting trolleys (15) are provided on the longitudinal crane beam (8), a longitudinal hoisting device (16) for lifting is provided on the longitudinal lifting trolley (15), and the height of the longitudinal fixed beam (10) is at least the height of three tank containers (24); The columns also include short columns (17), which are arranged at both ends of the hull (1), and both ends of the longitudinal crane beam (8) are arranged on the short columns (17); A ladder (18) is provided on the longitudinal crane beam (8).

2. According to claim 1, a LNG tank container suitable for berthing and transshipment ship is characterized by: The cantilever sections (4) at both ends extend out of the hull (1) to a length greater than or equal to the width of the LNG ship (3).

3. According to claim 1, a LNG tank container suitable for berthing and transshipment ship is characterized by: A transverse fixed beam (1401) arranged in the transverse direction is provided between the transverse crane load beam (14) and the high column (9); A top column (12) is provided at the upper end of the high column (9), and a plurality of inclined cables (5) are provided on the top column (12). The inclined cables (5) are respectively connected to the cantilever section (4) and the non-cantilever section of the transverse crane heavy beam (14).

4. According to claim 1, a LNG tank container suitable for berthing and transshipment ship is characterized by: A pump room (22) is provided at one end of the hull (1), a plurality of accommodation rooms and an operation room are provided on one side of the pump room (22), and a plurality of anchor windlasses (20) are provided on the hull (1); A plurality of mooring piles (11) are provided around the outer periphery of the hull (1).

5. According to claim 1, the LNG tank container suitable water area berthing and transshipment ship is characterized by: A container middle wall (25) is provided in the middle of the hull (1), and bulwarks (26) are provided on the ballast tanks (2) on both sides of the hull (1). The bulwarks (26) and the container middle wall (25) form a tank body (21), and a plurality of guide rails (27) are provided inside the tank body (21); The guide rail (27) is a vertical right-angle block. The guide rail (27) is arranged at the four corners of a single bin body (21). The end of the guide rail (27) is provided with a guiding inclined surface (2701).

6. According to claim 1, a method for replacing an LNG tank container by berthing in a suitable water area, characterized in that: The method includes: S1. The LNG ship (3) is driven to the side of the ballast tank (2) of the hull (1), and the LNG ship (3) is fixed by mooring piles (11); S2, controlling the transverse lifting trolley (6) to move above the LNG ship (3), and using the transverse hoisting device (7) to lift the tank container (24) onto the transfer platform (23) on the hull (1); S3, the longitudinal lifting trolley (15) on the longitudinal crane beam (8) moves to the top of the conversion platform (23), and the tank container (24) is rotated and lifted into the interior of the warehouse body (21) by the longitudinal hoisting device (16); S4. Unload the empty LNG tank container from the LNG fuel-powered ship by direct unloading, and then transport it to the LNG base station for filling.

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