Marine vertical liquid tank and liquefied gas transport ship

Abstract

The utility model provides a marine vertical liquid tank. The marine vertical liquid tank is mounted 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 utility model relates to a ship liquid tank, in particular to a marine vertical liquid tank and liquefied gas transport ship. BACKGROUND

[0002] The global energy structure is transforming towards clean and low-carbon, and LNG, LPG and other clean energy gradually increase the proportion in global energy consumption. With the continuous growth of global trade, the shipping industry, as an important link of international trade, is also developing. For many countries and regions, the dependence on LNG, LPG and other liquefied gas imports is high, and the stable supply of energy needs to be ensured through ship transportation. As the key equipment of liquefied gas transport ships and the key equipment for storing clean energy fuel for many ships, the ship liquid tank is directly related to the efficiency and safety of energy transportation.

[0003] In some ship designs, especially for ships with limited space, such as roll-on / roll-off ships and heavy lifting ships, it is very difficult to find space to place liquid tanks while meeting the space requirements of cargo loading capacity or other equipment. The conventional ship liquid tank is mainly arranged horizontally and vertically. For liquid tanks that can utilize the vertical space of the ship, the market is still blank. Therefore, there is an urgent need for a new type of liquid tank to meet the arrangement of the vertical space of the ship. SUMMARY

[0004] The utility model aims at filling the gap in the prior art and provides a marine vertical liquid tank and liquefied gas transport ship, which can effectively utilize the vertical space of the ship body and enhance the stability of the liquid tank itself.

[0005] One technical solution of the utility model is: a marine vertical liquid tank is installed in a liquid tank groove of a ship body and includes a tank body, a tank body support device and a tank body anti-rotation device; wherein,

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

[0007] The tank body support device includes a plurality of ship body support blocks fixed on the upper part of the inner wall of the liquid tank groove at equal intervals, a plurality of ship body anti-floating blocks fixed on the upper part of the inner wall of the liquid tank groove and located above the plurality of ship body support blocks, a tank body support frame fixed on the outer wall of the tank body, a plurality of anti-floating blocks arranged on the top surface of the tank body support frame at equal intervals, and a plurality of laminated blocks arranged on the bottom surface of the tank body support frame at equal intervals; the top surface of the plurality of anti-floating blocks is in one-to-one correspondence with the bottom surface of the plurality of ship body anti-floating blocks; the plurality of laminated blocks are arranged on the top surface of the plurality of ship body support blocks in one-to-one correspondence and are slidable;

[0008] The tank 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 arranged 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 and located below the tank body support device; wherein,

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

[0010] Each anti-rotation assembly comprises a pair of hull limiting members fixed on the inner wall of the liquid tank groove, 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 a pair of anti-rotation wooden blocks fixed on the outer side surfaces of the pair of connecting seats one by one, the outer side surfaces of the pair of anti-rotation wooden blocks abutting on the inner side surfaces of the pair of hull limiting members one by one.

[0011] The above-mentioned marine vertical liquid tank, wherein the top of the tank body is provided with a dome structure.

[0012] The above-mentioned marine vertical liquid tank, wherein the tank body 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 circumferentially 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 wooden block clamping grooves are circumferentially arranged on the top surface of the upper ring plate, and an anti-floating wooden block is arranged between each pair of anti-floating wooden block clamping grooves through epoxy glue.

[0014] A plurality of pairs of laminated wooden block clamping grooves are circumferentially arranged on the bottom surface of the lower ring plate, and a laminated wooden block is arranged between each pair of laminated wooden block clamping grooves through epoxy glue; the arrangement positions of the plurality of laminated wooden blocks correspond to the arrangement positions of the plurality of rib plates one by one.

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

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

[0017] The above-mentioned marine vertical liquid tank, wherein four lifting lugs are respectively fixed on the outer end surfaces of the four rib plates located one by one at both ends of the longitudinal axis of the tank body.

[0018] The above-mentioned marine vertical liquid tank, wherein the tank anti-rotation device comprises three anti-rotation assemblies, and the arrangement heights of the three anti-rotation assemblies correspond to the arrangement heights of the three vacuum rings arranged at the uppermost portion in the tank body.

[0019] The vertical liquid tank for ship has the following characteristics:

[0020] The vertical liquid tank for ship has the following characteristics:

[0021] The vertical liquid tank for ship has the following characteristics:

[0022] The vertical liquid tank for ship has the following characteristics:

[0023] 1) The axis of the tank body extends along the vertical direction of the ship body, effectively utilizes the vertical space of the ship body, and is suitable for high and narrow liquid cargo tank space, so that the vertical liquid tank has high engineering application feasibility, great potential and wide prospect;

[0024] 2) The tank body support frame is arranged on the tank body and supports the whole tank body vertically on the corresponding liquid tank groove of the ship body. The tank body support frame is arranged on the upper portion of the tank body, effectively controls the gravity center in the liquid tank groove of the ship body, and enhances the stability of the liquid tank;

[0025] 3) The tank body support frame is provided with the anti-floating wood block and the laminated wood block. The anti-floating wood block effectively avoids the whole vertical storage tank from floating on the sea surface, and the laminated wood block and the ship body support wood block abut and can slide relative to each other. In this way, the liquid tank is supported, and the free thermal expansion and contraction of the liquid tank itself is ensured. The tank body support frame integrates multiple functions into one structural member, reduces the weight of the liquid tank and the manufacturing cost;

[0026] 4) The anti-rotation device is arranged on the tank body, effectively avoids the inclination and movement of the tank body along the transverse direction and the longitudinal direction of the ship body, and makes the liquid tank firmly fixed on the ship body. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the vertical liquid tank for ship of the utility model;

[0028] Figure 2 is a three-dimensional view of the tank body in the vertical liquid tank for ship of the utility model;

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

[0030] Figure 4 isFigure 3 Enlarged view at point M;

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

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

[0033] Figure 7 This is an enlarged view of the anti-rotation device for the tank body in the marine vertical liquid tank of this utility model;

[0034] Figure 8 This is an enlarged view of the bottom limiting component in the marine vertical liquid tank of this utility model;

[0035] Figure 9 This is a schematic diagram of another type of marine vertical liquid tank according to the present invention. Detailed Implementation

[0036] To further illustrate the principle and structure of this utility model, the following is a description in conjunction with... Figures 1-9 This utility model will be described in detail below. For ease of description, the length direction of the hull is defined as longitudinal, the width direction as transverse, and the height direction as vertical.

[0037] The present invention relates to a marine vertical liquid tank, which is installed in the liquid tank trough 1 of the hull and includes a tank body 2, a tank body support device, and a tank body anti-rotation device.

[0038] Tank 2 is a vertically oriented cylindrical body. An air dome structure 24 is installed at the top of the tank to provide the necessary vacuum area for tank 2 during ship operation. Multiple vacuum rings 25 are spaced from bottom to top on the inner wall of tank 1 to enhance the strength of tank 2.

[0039] The tank support device comprises a plurality of hull support blocks 12 fixed in a circumferential manner on the upper portion of the inner wall of the liquid tank groove 1, a plurality of hull stop blocks 11 fixed in a circumferential manner on the upper portion of the inner wall of the liquid tank groove 1 and located above the plurality of hull support blocks 12, a tank support frame 21 fixed on the outer wall of the tank 2, a plurality of anti-floating blocks 213 arranged in a circumferential manner on the top surface of the tank support frame 21, and a plurality of laminated blocks 216 arranged in a circumferential manner on the bottom surface of the tank support frame 21; the top surface of each anti-floating block 213 abuts against the bottom surface of the corresponding hull stop block 11, and there is a certain gap between the top surface of each anti-floating block 213 and the bottom surface of the corresponding hull stop block 11, so as to prevent the tank 2 from moving upward; the plurality of laminated blocks 216 are arranged in a one-to-one corresponding and slidable manner on the top surface of the plurality of hull support blocks 12; the plurality of laminated blocks 216 can move along the normal line of the tank 2 relative to the hull support blocks 12, so as to support the tank 2 and also ensure that the tank 2 freely expands and contracts with temperature changes.

[0040] The tank support frame 21 comprises an upper ring plate 211 fixed on the outer wall of the tank 2, a lower ring plate 214, and a plurality of rib plates 217 connected in a circumferential manner 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 stress condition, so as to save the amount of steel plate; four lug ears 218 are respectively fixed on the outer end surfaces of the four rib plates 217 located at the two ends of the longitudinal axis of the tank 2, which can increase the strength of the tank support frame 21 and also consider the hoisting of the tank 2;

[0041] Four pairs of anti-floating block clamping grooves 212 are arranged in a circumferential manner on the top surface of the upper ring plate 211, and the four pairs of anti-floating block clamping grooves 212 are arranged in a one-to-one corresponding manner at the two ends of the transverse axis and the two ends of the longitudinal axis of the tank 2; one anti-floating block 213 is arranged between each pair of anti-floating block clamping grooves 212 through epoxy glue;

[0042] A plurality of pairs of laminated block clamping grooves 215 are arranged in a circumferential manner on the bottom surface of the lower ring plate 214, and one laminated block 215 is arranged between each pair of laminated block clamping grooves 215 through epoxy glue; the arrangement positions of the plurality of laminated blocks 215 correspond to the arrangement positions of the plurality of rib plates 217.

[0043] The tank anti-rotation device comprises a bottom limiting assembly 23 and a plurality of anti-rotation assemblies 22, wherein the bottom limiting assembly 23 is arranged between the bottom of the tank 2 and the bottom of the liquid tank groove 1; the plurality of anti-rotation assemblies 22 are arranged in a circumferential manner between the upper portion of the outer wall of the tank 2 and the upper portion of the inner wall of the liquid tank groove 1 and below the tank support device.

[0044] The bottom limiting component 23 comprises a limiting cylinder 231 fixed axially downwardly on the outer bottom surface center of the tank body 2 by epoxy glue and an annular limiting block 232 fixed on the bottom surface center of the liquid tank groove 1 and sleeved on the outside of the limiting cylinder 231 by epoxy glue, the limiting block 232 is arranged in the clamping groove 14 at the bottom of the liquid tank groove 1, and gaps are formed between the clamping groove 14 and the tank body 2 and between the limiting block 232 and the tank body 2, so that the tank body 2 is effectively prevented from moving along the transverse direction and the longitudinal direction of the ship body, and the tank body 2 can freely expand and contract along the axial direction of the tank body 2.

[0045] Each anti-rotation component 22 comprises a pair of ship body limiting pieces 13, a structure seat 221, a pair of connecting seats 222 and a pair of anti-rotation blocks 223, the pair of ship body limiting pieces 13 are fixed on the inner wall of the liquid tank groove 1, the structure seat 221 has three rows and is fixed on the outer wall of the tank body 2 in one-to-one correspondence with the three rows of vacuum rings 25 arranged at the uppermost part of the tank body 2, the pair of connecting seats 222 are fixed on the two side surfaces of the three rows of structure seats 221 in a symmetrical manner, and the pair of anti-rotation blocks 223 are fixed on the outer side surfaces of the pair of connecting seats 22 in one-to-one correspondence by epoxy glue, the outer side surfaces of the pair of anti-rotation blocks 223 abut against the inner side surfaces of the pair of ship body limiting pieces 13 in one-to-one correspondence, and the pair of ship body limiting pieces 13 “clamp” the pair of anti-rotation blocks 223, so that the tank body 2 is prevented from moving along the transverse direction and the longitudinal direction of the ship body. Meanwhile, the anti-rotation blocks 223 can move along the normal of the tank body 2 relative to the ship body limiting pieces 13, so that the tank body 2 is prevented from rotating and can freely expand and contract.

[0046] The marine vertical liquid tank of the utility model, if the volume is small and the height is low, only a plurality of anti-rotation components 22 are arranged at the upper part of the tank body 2, and a bottom limiting component 23 is arranged at the bottom of the tank body 2, so that the weight of the tank body 2 is reduced, and the cost is reduced, if the volume of the tank body 2 is large and the height is high, because the tank body 2 is enlarged and lengthened, the structure of the bottom limiting component 23 no longer meets the stress intensity of the tank body 2, so the bottom limiting component 23 is cancelled, and a plurality of anti-rotation components 22 are arranged at the lower part of the tank body 2, so that the overall structural strength of the tank body 2 is met.

[0047] The liquefied gas transport ship of the utility model comprises a ship body and a marine vertical liquid tank arranged on the ship body.

[0048] Although the utility model has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary terms, rather than restrictive terms. The utility model can be embodied in various forms, such as: the tank body can be double-ear type, three-ear type, conical type; the head can be disc-shaped, oval, spherical; as the liquid tank increases, the tank body support device can be made of multiple channels, and the anti-rotation assembly can be arranged at the six-equal-point or eight-equal-point of the outer periphery of the tank body, and multiple groups can be arranged 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 interpreted broadly within the spirit and scope of the appended claims.

Claims

1. A vertical liquid tank for a ship, which is installed in a liquid tank groove of a ship body and comprises 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 barrel, and a plurality of vacuum rings are arranged on the inner wall surface of the tank body at intervals from top to bottom; the tank body support device comprises a plurality of ship body support blocks fixed on the upper inner wall of the liquid tank groove at intervals in a circumferential direction, a plurality of ship body float-stopping blocks fixed on the upper inner wall of the liquid tank groove above the plurality of ship body support blocks, a tank body support frame fixed on the outer wall of the tank body, a plurality of anti-float blocks arranged on the top surface of the tank body support frame at intervals in a circumferential direction, and a plurality of laminated blocks arranged on the bottom surface of the tank body support frame at intervals in a circumferential direction; the top surface of each anti-float block is in one-to-one correspondence with the bottom surface of each ship body float-stopping block; and the plurality of laminated blocks are arranged on the top surface of the plurality of ship body support blocks in one-to-one correspondence and in a slidable manner; 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 arranged between the upper outer wall of the tank body and the upper inner wall of the liquid tank groove at intervals in a circumferential direction and below the tank body support device; wherein the bottom limiting assembly comprises a limiting cylinder fixed axially downward on the central outer bottom surface of the tank body, and an annular limiting block fixed on the central bottom surface of the liquid tank groove and sleeved on the limiting cylinder; each anti-rotation assembly comprises a pair of ship body limiting members fixed on the inner wall of the liquid tank groove, a structural seat fixed on the outer wall of the tank body, a pair of connecting seats fixed on the two side surfaces of the structural seat in a symmetrical manner, and a pair of anti-rotation blocks fixed on the outer side surfaces of the pair of connecting seats in one-to-one correspondence, the outer side surfaces of the pair of anti-rotation blocks being in one-to-one correspondence with the inner side surfaces of the pair of ship body limiting members; the top of the tank body is provided with a dome structure; the tank body 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 connected between the bottom surface of the upper ring plate and the top surface of the lower ring plate at intervals in a circumferential direction; the top surface of the upper ring plate is provided with a plurality of pairs of anti-float block clamping grooves at intervals in a circumferential direction, and one anti-float block is arranged between each pair of anti-float block clamping grooves by means of epoxy glue; the bottom surface of the lower ring plate is provided with a plurality of pairs of laminated block clamping grooves at intervals in a circumferential direction, and one laminated block is arranged between each pair of laminated block clamping grooves by means of epoxy glue; and the arrangement positions of the plurality of laminated blocks are in one-to-one correspondence with the arrangement positions of the plurality of rib plates; the outer diameter of the upper ring plate is smaller than the outer diameter of the lower ring plate; the number of the anti-float block clamping grooves is four pairs, and the four pairs of anti-float block clamping grooves are arranged at the two ends of the transverse axis and the two ends of the longitudinal axis of the tank body in one-to-one correspondence; four lug ears are respectively fixed on the outer end surfaces of the four rib plates located at the two ends of the longitudinal axis of the tank body in one-to-one correspondence; and the tank body anti-rotation device comprises three anti-rotation assemblies, and the arrangement heights of the three anti-rotation assemblies correspond to the arrangement heights of the three uppermost vacuum rings in the tank body. ​ ​ ​ ​ ​ 2. Marine vertical liquid tank according to claim 1, characterized in that ​ 3. Marine vertical liquid tank according to claim 1, characterized in that ​ ​ ​ 4. Marine vertical liquid tank according to claim 3, characterized in that ​ 5. The marine vertical liquid tank according to claim 3, characterized in that, ​ 6. The marine vertical liquid tank according to claim 3, characterized in that, ​ 7. The marine vertical liquid tank according to claim 1, characterized in that, ​ 8. The marine vertical liquid tank according to claim 1, characterized in that, The anti-rotation device of the tank body comprises four anti-rotation components, the setting height of which corresponds to the setting height of the three uppermost vacuum rings arranged in the tank body, and the four anti-rotation components are arranged at the two ends of the transverse shaft and the two ends of the longitudinal shaft of the tank body one by one.

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

10. A liquefied gas carrier vessel comprising a hull, characterised in that, The ship body is provided with the vertical liquid tank for ship as claimed in claim 1.

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