Marine vertical liquid tank and liquefied gas transport ship

Abstract

The invention provides a marine vertical liquid tank. The marine vertical liquid tank is installed in a liquid tank groove of a ship body and comprises a tank body, a tank body supporting device and a tank body anti-rotation device. The tank body is a vertical cylindrical barrel; the tank body supporting device comprises a plurality of ship body supporting wood blocks which are circumferentially and uniformly distributed and fixed on the upper part of the inner wall of the liquid tank groove, a plurality of ship body floating stopping blocks which are circumferentially and uniformly distributed and fixed on the upper part of the inner wall of the liquid tank groove and are positioned above the ship body supporting wood blocks, and a tank body supporting frame which is fixed on the upper part of the outer wall of the tank body; the anti-floating wood blocks are evenly distributed on the top face of the tank body supporting frame in the circumferential direction, and the laminated wood blocks are evenly distributed on the bottom face of the tank body supporting frame in the circumferential direction. The tank body anti-rotation device comprises a bottom limiting assembly arranged between the bottom of the tank body and the bottom of the liquid tank groove and a plurality of anti-rotation assemblies circumferentially and evenly distributed between the upper portion of the outer wall of the tank body and the upper portion of the inner wall of the liquid tank groove. The vertical space of the ship body is effectively utilized, and the stability of the liquid tank can be enhanced.

Description

Technical Field

[0001] The invention relates to a ship liquid tank, in particular to a ship vertical liquid tank and a liquefied gas transport ship. Background Art

[0002] The global energy structure is transforming towards a clean and low-carbon direction. LNG, LPG and other clean energy sources are gradually increasing their share in global energy consumption. With the continuous growth of global trade, the shipping industry, as an important link in international trade, is also developing continuously. For many countries and regions, the import dependence of liquefied gases such as LNG and LPG is relatively high, and a stable supply of energy needs to be guaranteed through ship transportation. Marine liquid tanks are key equipment for liquefied gas transport ships and key equipment for fuel storage of clean energy for many ships, which are directly related to the efficiency and safety of energy transportation.

[0003] In some ship designs, especially ships with limited space, such as ro-ro ships and heavy lift ships, the space available for placing liquid tanks will be very cramped when meeting the space requirements for cargo loading or other equipment. Conventional ship liquid tanks are mostly arranged horizontally or vertically, and there is still a gap in the market for liquid tanks that can utilize the vertical space of the ship. Therefore, a new type of liquid tank is urgently needed to meet the vertical space layout of the ship. Summary of the invention

[0004] The purpose of the present invention is to fill the gap in the prior art and provide a marine vertical liquid tank and a liquefied gas transport ship, which can effectively utilize the vertical space of the hull and enhance the stability of the liquid tank itself.

[0005] A technical solution of the object of the present invention is: a vertical liquid tank for a ship, which is installed in a liquid tank tank of a ship and comprises a tank body, a tank body supporting device and a tank body anti-rotation device; wherein,

[0006] The tank body is a vertical cylindrical body, and a plurality of vacuum rings are arranged at intervals from bottom to top on the inner wall surface of the tank body;

[0007] The tank body supporting device comprises a plurality of hull supporting wooden blocks evenly distributed around the circumference and fixed to the upper part of the inner wall of the liquid tank tank, a plurality of hull anti-floating blocks evenly distributed around the circumference and fixed to the upper part of the inner wall of the liquid tank tank and located above the plurality of hull supporting wooden blocks, a tank body supporting frame fixed to the upper part of the outer wall of the tank body, a plurality of anti-floating wooden blocks evenly distributed around the circumference and arranged on the top surface of the tank body supporting frame, and a plurality of laminated wooden blocks evenly distributed around the circumference and arranged on the bottom surface of the tank body supporting frame; the top surfaces of the plurality of anti-floating wooden blocks are one-to-one correspondingly against the bottom surfaces of the plurality of hull anti-floating blocks; the plurality of laminated wooden blocks are one-to-one correspondingly and slidably arranged on the top surfaces of the plurality of hull supporting wooden blocks;

[0008] The tank body anti-rotation device comprises a bottom limit assembly arranged between the bottom of the tank body and the bottom of the liquid tank tank, and a plurality of anti-rotation assemblies evenly distributed circumferentially arranged between the upper part of the outer wall of the tank body and the upper part of the inner wall of the liquid tank tank and located below the tank body support device; wherein,

[0009] The bottom limiting assembly comprises a limiting cylinder fixed axially downward at the center of the outer bottom surface of the tank body and an annular limiting wooden block fixed at the center of the bottom surface of the liquid tank tank and sleeved outside the limiting cylinder;

[0010] Each of the anti-rotation components includes a pair of hull limiters fixed on the inner wall of the liquid tank, a structural seat fixed on the outer wall of the tank body, a pair of connecting seats symmetrically fixed on the two side surfaces of the structural seat, and anti-rotation wooden blocks fixed one-to-one on the outer side surfaces of a pair of connecting seats, and the outer side surfaces of the pair of anti-rotation wooden blocks are respectively against the inner side surfaces of a pair of hull limiters.

[0011] The above-mentioned marine vertical liquid tank, wherein an air dome structure is installed on the top of the tank body.

[0012] The above-mentioned marine vertical liquid tank, wherein the tank body support frame comprises an upper ring plate fixed to the outer wall of the tank body, a lower ring plate and a plurality of rib plates evenly distributed around the circumference and connected between the bottom surface of the upper ring plate and the top surface of the lower ring plate;

[0013] A plurality of pairs of anti-floating wood block slots are evenly distributed on the top surface of the upper ring plate, and an anti-floating wood block is installed between each pair of anti-floating wood block slots by epoxy glue;

[0014] The bottom surface of the lower ring plate is evenly distributed on the circumference with multiple pairs of laminated wood block slots, and a laminated wood block is installed between each pair of laminated wood block slots by epoxy glue; the setting positions of the multiple laminated wood blocks correspond one by one to the setting positions of the multiple rib plates.

[0015] In the above-mentioned marine vertical liquid tank, the outer diameter of the upper ring plate is smaller than the outer diameter of the lower ring plate.

[0016] In the above-mentioned marine vertical liquid tank, the number of the anti-floating wooden block slots is four pairs, and the four pairs of anti-floating wooden block slots are arranged one-to-one at both ends of the transverse axis and the longitudinal axis of the tank body.

[0017] In the above-mentioned marine vertical liquid tank, a lifting lug is fixed on each of the outer end surfaces of four ribs located at both ends of the longitudinal axis of the tank body in a one-to-one correspondence.

[0018] In the above-mentioned marine vertical liquid tank, the anti-rotation device includes three anti-rotation components, and the setting heights of the three anti-rotation components correspond to the setting heights of the three vacuum rings arranged at the uppermost part of the tank body.

[0019] The above-mentioned marine vertical liquid tank, wherein the anti-rotation device includes four anti-rotation components, the setting heights of the four anti-rotation components correspond to the setting heights of the three vacuum rings arranged at the top of the tank body, and the four anti-rotation components are arranged one by one at both ends of the transverse axis and the longitudinal axis of the tank body.

[0020] The above-mentioned marine vertical liquid tank, wherein the anti-rotation wooden block is fixed to the outer side surface of the connecting seat by epoxy glue; the limiting cylinder is fixed to the bottom of the tank body by epoxy glue, and the limiting cylinder is inserted into the limiting wooden block by epoxy glue.

[0021] Another technical solution for the purpose of the present invention is: a liquefied gas transport ship, comprising a hull, on which the marine vertical liquid tank of the present invention is arranged.

[0022] The marine vertical liquid tank and liquefied gas transport ship of the present invention have the following characteristics:

[0023] 1) The axis of the tank extends along the vertical direction of the hull, effectively utilizing the vertical space of the hull and adapting to the high and narrow liquid cargo tank space. The engineering application of this vertical liquid tank is highly feasible, has great potential and broad prospects;

[0024] 2) A tank support frame is set on the tank body to support the entire tank body vertically on the corresponding tank tank tank of the hull. The tank support frame is arranged on the upper part of the tank body, which effectively controls the center of gravity in the tank tank tank of the hull and enhances the stability of the tank;

[0025] 3) Anti-floating wood blocks and laminated wood blocks are set on the tank support frame. The anti-floating wood blocks effectively prevent the entire vertical storage tank from floating on the sea surface; the laminated wood blocks abut against the hull support wood blocks and can slide against each other. In this way, the liquid tank is supported while ensuring the free thermal expansion and contraction of the liquid tank itself; the tank support frame integrates multiple functions into one structural component, reducing the weight of the liquid tank and the production cost;

[0026] 4) An anti-rotation device is installed on the tank body to effectively prevent the tank body from tilting and moving in the horizontal and longitudinal directions of the hull, so that the liquid tank is firmly fixed on the hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a vertical liquid tank for a ship of the present invention;

[0028] Figure 2 It is a three-dimensional diagram of the tank body in the marine vertical liquid tank of the present invention;

[0029] Figure 3 is an axial cross-sectional view of a vertical liquid tank for a ship of the present invention;

[0030] Figure 4 yes Figure 3The enlarged view of the M in the middle;

[0031] Figure 5 yes Figure 3 AA section view in;

[0032] Figure 6 yes Figure 3 BB section view in;

[0033] Figure 7 It is an enlarged view of the anti-rotation device in the marine vertical liquid tank of the present invention;

[0034] Figure 8 It is an enlarged view of the bottom limit assembly in the marine vertical liquid tank of the present invention;

[0035] Fig. 9 It is a schematic diagram of another vertical liquid tank for ship of the present invention. DETAILED DESCRIPTION

[0036] In order to further illustrate the principle and structure of the present invention, Figures 1 to 9 The present invention is described in detail. For the convenience of description, the length direction of the hull is defined as the longitudinal direction, the width direction of the hull is defined as the transverse direction, and the height direction of the hull is defined as the vertical direction.

[0037] The vertical liquid tank for a ship of the present invention is installed in a liquid tank tank 1 of a ship body and comprises a tank body 2, a tank body supporting device and a tank body anti-rotation device.

[0038] The tank body 2 is a vertical cylindrical cylinder, and an air dome structure 24 is installed on the top of the tank body to provide a necessary vacuum area for the tank body 2 during the operation of the ship. Multiple vacuum rings 25 are arranged at intervals from bottom to top on the inner wall surface of the tank body 1 to strengthen the strength of the tank body 2.

[0039] The tank body supporting device comprises a plurality of hull supporting wooden blocks 12 evenly distributed around the circumference and fixed to the upper part of the inner wall of the liquid tank tank 1, a plurality of hull anti-floating blocks 11 evenly distributed around the circumference and fixed to the upper part of the inner wall of the liquid tank tank 1 and located above the plurality of hull supporting wooden blocks 12, a tank body supporting frame 21 fixed to the upper part of the outer wall of the tank body 2, a plurality of anti-floating wooden blocks 213 evenly distributed around the circumference and arranged on the top surface of the tank body supporting frame 21, and a plurality of laminated wooden blocks 216 evenly distributed around the circumference and arranged on the bottom surface of the tank body supporting frame 21; the plurality of anti-floating wooden blocks 21 The top surfaces of the plurality of anti-floating wooden blocks 213 are respectively against the bottom surfaces of the plurality of hull anti-floating blocks 11, and a certain gap is provided between the top surface of each anti-floating wooden block 213 and the bottom surface of the corresponding hull anti-floating block 11, so as to prevent the tank body 2 from moving upward; the plurality of laminated wooden blocks 216 are respectively and slidably provided on the top surfaces of the plurality of hull supporting wooden blocks 12; the plurality of laminated wooden blocks 216 can move along the normal of the tank body 2 relative to the hull supporting wooden blocks 12, so as to support the tank body 2 while ensuring the free thermal expansion and contraction of the tank body 2.

[0040] The tank support frame 21 includes an upper ring plate 211 fixed on the outer wall of the tank body 2, a lower ring plate 214, and a plurality of rib plates 217 evenly distributed on the circumference and connected between the bottom surface of the upper ring plate 211 and the top surface of the lower ring plate 214; the outer diameter of the upper ring plate 211 is designed to be smaller than the outer diameter of the lower ring plate 214 according to the force conditions, which can save the amount of steel plates; a lifting ear 218 is fixed on each of the outer end surfaces of the four rib plates 217 located at both ends of the longitudinal axis of the tank body 2 in a one-to-one correspondence, and the four lifting ears 218 can increase the strength of the tank support frame 21 while taking into account the lifting of the tank body 2;

[0041] Four pairs of anti-floating wood block slots 212 are evenly distributed on the circumference of the top surface of the upper ring plate 211. The four pairs of anti-floating wood block slots 212 are correspondingly arranged at both ends of the transverse axis and the longitudinal axis of the tank body 2. An anti-floating wood block 213 is installed between each pair of anti-floating wood block slots 212 by epoxy glue.

[0042] A plurality of pairs of laminated wood block slots 215 are evenly distributed on the circumference of the bottom surface of the lower ring plate 214 , and a laminated wood block 215 is installed between each pair of laminated wood block slots 215 by epoxy glue; the setting positions of the plurality of laminated wood blocks 215 correspond one by one to the setting positions of the plurality of rib plates 217 .

[0043] The tank body anti-rotation device includes a bottom limit assembly 23 and a plurality of anti-rotation assemblies 22, wherein the bottom limit assembly 23 is arranged between the bottom of the tank body 2 and the bottom of the liquid tank tank 1; the plurality of anti-rotation assemblies 22 are evenly distributed circumferentially between the upper part of the outer wall of the tank body 2 and the upper part of the inner wall of the liquid tank tank 1 and are located below the tank body supporting device.

[0044] The bottom limiting assembly 23 includes a limiting cylinder 231 fixed axially downwardly at the center of the outer bottom surface of the tank body 2 by epoxy glue, and an annular limiting wooden block 232 fixed at the center of the bottom surface of the liquid tank tank 1 and sleeved on the outside of the limiting cylinder 231 by epoxy glue. The limiting wooden block 232 is arranged in the groove 14 at the bottom of the liquid tank tank 1, and there are gaps between the groove 14 and the tank body 2 and between the limiting wooden block 232, so that it can effectively prevent the lower part of the tank body 2 from moving horizontally and vertically along the hull, and allow the tank body 2 to expand and contract freely along its own axial direction. The number of anti-rotation components 22 is three or four; the setting height of the three anti-rotation components 22 corresponds to the setting height of the three vacuum rings 25 arranged at the top of the tank body 2; the setting height of the four anti-rotation components 22 corresponds to the setting height of the three vacuum rings 25 arranged at the top of the tank body 2, and the four anti-rotation components 22 are arranged one by one at both ends of the transverse axis and the longitudinal axis of the tank body 2.

[0045] Each anti-rotation component 22 includes a pair of hull limiters 13, a structural seat 221, a pair of connecting seats 222 and a pair of anti-rotation wooden blocks 223; the pair of hull limiters 13 are fixed on the inner wall of the liquid tank 1; the structural seat 221 has three rows, and is fixed on the outer wall of the tank body 2 in a one-to-one correspondence with the three vacuum rings 25 arranged at the top of the tank body 2, and a pair of connecting seats 222 are symmetrically fixed on the two side surfaces of the three structural seats 221; a pair of anti-rotation wooden blocks 223 are each fixed on the outer side surface of a pair of connecting seats 22 in a one-to-one correspondence by epoxy glue, and the outer side surfaces of the pair of anti-rotation wooden blocks 223 are against the inner side surfaces of a pair of hull limiters 13 in a one-to-one correspondence, and the pair of hull limiters 13 "clamp" the pair of anti-rotation wooden blocks 223 well to prevent the tank body 2 from moving laterally and longitudinally along the hull. At the same time, the anti-rotation wooden block 223 can move along the normal line of the tank body 2 relative to the hull limiter 13, thereby preventing the tank body 2 from rotating while ensuring that the tank body 2 can expand and contract freely with heat and cold.

[0046] If the marine vertical liquid tank of the present invention has a small volume and a short height, only a plurality of anti-rotation components 22 are provided on the upper part of the tank body 2, and a bottom limiter 23 is provided at the bottom of the tank body 2, thereby reducing the weight of the tank body 2 and reducing the cost. If the volume of the tank body 2 is large and the height is high, since the tank body 2 is enlarged and lengthened, the structure of the bottom limiter 23 no longer meets the force strength of the tank body 2, then the bottom limiter 23 is cancelled, and instead a plurality of anti-rotation components 22 are provided at the lower part of the tank body 2, thereby meeting the overall structural strength of the tank body 2.

[0047] The liquefied gas transport ship of the present invention comprises a hull, on which a vertical liquid tank for ship is arranged.

[0048] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. The present invention can be implemented in a variety of forms, such as: the tank body can be double-eared, three-eared, or conical; the head can be dish-shaped, elliptical, or spherical; as the liquid tank is enlarged, the tank body support device can be made into multiple channels, the anti-rotation assembly can be set at six or eight points on the outer circumference of the tank body, and multiple groups can be set along the axial direction of the tank body. Therefore, the above-mentioned embodiments are not limited to any of the foregoing details, but should be broadly interpreted within the spirit and scope defined by the appended claims.

Claims

1. A vertical liquid tank for a ship, installed in a liquid tank tank of a ship and comprising a tank body, a tank body support device and a tank body anti-rotation device; characterized in that: The tank body is a vertical cylindrical body, and a plurality of vacuum rings are arranged at intervals from bottom to top on the inner wall surface of the tank body; The tank body supporting device comprises a plurality of hull supporting wooden blocks evenly distributed around the circumference and fixed to the upper part of the inner wall of the liquid tank tank, a plurality of hull anti-floating blocks evenly distributed around the circumference and fixed to the upper part of the inner wall of the liquid tank tank and located above the plurality of hull supporting wooden blocks, a tank body supporting frame fixed to the upper part of the outer wall of the tank body, a plurality of anti-floating wooden blocks evenly distributed around the circumference and arranged on the top surface of the tank body supporting frame, and a plurality of laminated wooden blocks evenly distributed around the circumference and arranged on the bottom surface of the tank body supporting frame; the top surfaces of the plurality of anti-floating wooden blocks are one-to-one correspondingly against the bottom surfaces of the plurality of hull anti-floating blocks; the plurality of laminated wooden blocks are one-to-one correspondingly and slidably arranged on the top surfaces of the plurality of hull supporting wooden blocks; The tank body anti-rotation device comprises a bottom limit assembly arranged between the bottom of the tank body and the bottom of the liquid tank tank, and a plurality of anti-rotation assemblies evenly distributed circumferentially arranged between the upper part of the outer wall of the tank body and the upper part of the inner wall of the liquid tank tank and located below the tank body support device; wherein, The bottom limiting assembly comprises a limiting cylinder fixed axially downward at the center of the outer bottom surface of the tank body and an annular limiting wooden block fixed at the center of the bottom surface of the liquid tank tank and sleeved outside the limiting cylinder; Each of the anti-rotation components includes a pair of hull limiters fixed on the inner wall of the liquid tank, a structural seat fixed on the outer wall of the tank body, a pair of connecting seats symmetrically fixed on the two side surfaces of the structural seat, and anti-rotation wooden blocks fixed one-to-one on the outer side surfaces of a pair of connecting seats, and the outer side surfaces of the pair of anti-rotation wooden blocks are respectively against the inner side surfaces of a pair of hull limiters.

2. The marine vertical liquid tank according to claim 1, characterized in that: An air dome structure is installed on the top of the tank body.

3. The marine vertical liquid tank according to claim 1, characterized in that: The tank support frame comprises an upper ring plate fixed on the outer wall of the tank body, a lower ring plate and a plurality of rib plates evenly distributed around the circumference and connected between the bottom surface of the upper ring plate and the top surface of the lower ring plate; A plurality of pairs of anti-floating wood block slots are evenly distributed on the top surface of the upper ring plate, and an anti-floating wood block is installed between each pair of anti-floating wood block slots by epoxy glue; The bottom surface of the lower ring plate is evenly distributed on the circumference with multiple pairs of laminated wood block slots, and a laminated wood block is installed between each pair of laminated wood block slots by epoxy glue; the setting positions of the multiple laminated wood blocks correspond one by one to the setting positions of the multiple rib plates.

4. The marine vertical liquid tank according to claim 3, characterized in that: The outer diameter of the upper ring plate is smaller than the outer diameter of the lower ring plate.

5. The marine vertical liquid tank according to claim 3, characterized in that: The number of the anti-floating wood block slots is four pairs, and the four pairs of anti-floating wood block slots are arranged one by one at both ends of the transverse axis and the two ends of the longitudinal axis of the tank body.

6. The marine vertical liquid tank according to claim 3, characterized in that: A lifting ear is fixed on each of the outer end surfaces of four rib plates which are located at both ends of the longitudinal axis of the tank body in a one-to-one correspondence.

7. The installation structure of a vertical liquid tank for a ship according to claim 1, characterized in that: The anti-rotation device comprises three anti-rotation components, and the setting heights of the three anti-rotation components correspond to the setting heights of the three vacuum rings arranged at the uppermost part of the tank body.

8. The marine vertical liquid tank according to claim 1, characterized in that: The anti-rotation device includes four anti-rotation components, the setting height of the four anti-rotation components corresponds to the setting height of the three vacuum rings arranged at the top of the tank body, and the four anti-rotation components are arranged one by one at both ends of the transverse axis and the longitudinal axis of the tank body.

9. The marine vertical liquid tank according to claim 1, characterized in that: The anti-rotation wooden block is fixed to the outer side surface of the connecting seat by epoxy glue; the limiting cylinder is fixed to the bottom of the tank body by epoxy glue, and the limiting cylinder is inserted into the limiting wooden block by epoxy glue.

10. A liquefied gas transport ship, comprising a hull, characterized in that: The hull is provided with a marine vertical liquid tank as claimed in claim 1.

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