A dual-fuel bulk carrier tank transport protection device

Abstract

A dual-fuel bulk carrier tank transport protection device belongs to the technical field of tank transport protection. In order to solve the technical problem that the prior art consumes more power when cooling the LNG tank, and at the same time causes the ambient temperature to rise, resulting in increased safety risks; the present invention realizes heat dissipation by setting a guide component, an anti-evaporation component, a guide frame, a water storage tank, a water inlet component, and a buoyancy component. The control unit controls the water spraying unit and the fan unit to start, so that the water flowing down the LNG tank can enter the inside of the arc-shaped interlocking groove, and the water enters the mounting hole along the curvature of the inner wall of the arc-shaped interlocking groove. When the water is collected in the funnel, the water can enter the inside of the water storage cavity through the mounting hole and the water inlet hole to realize the recovery of the water. When the height of the liquid level in the water storage cavity is reduced, the water in the water storage tank enters the inside of the water storage cavity through the movement of the counterweight block and the floating plate, so that the water in the water storage cavity can be automatically replenished with water, and the energy consumption is low.

Description

Technical Field

[0001] The invention relates to the technical field of tank transportation protection, and in particular to a tank transportation protection device for a dual-fuel bulk carrier. Background Art

[0002] Dual-fuel bulk carriers are ships that can use two different types of fuel. One fuel is traditional diesel fuel, and the other is natural gas liquid. When transporting LNG tanks via dual-fuel bulk carriers, the LNG tanks are usually stacked on the shipboard. When the ambient temperature is high or it is continuously exposed to sunlight, the temperature of the LNG tank will rise, increasing the internal pressure of the LNG tank, leading to increased safety risks. Therefore, tank transportation protection devices are required.

[0003] The existing Chinese patent with publication number CN217456270U discloses a liquefied gas transport ship with higher safety, which relates to the technical field of liquefied gas transport ships. Its technical points include a hull, a mounting groove is provided inside the hull, a liquid storage tank mounting groove is provided inside the mounting groove, a liquid storage tank is installed inside the liquid storage tank mounting groove, a storage tank is installed on both sides of the opening of the liquid storage tank mounting groove, and a protective cover is connected to the outside of the storage mechanism. The utility model can store natural liquefied gas through the liquid storage tank inside the hull, and the refrigeration plate below the liquid storage tank mounting groove can cool the liquid storage tank to ensure that the natural liquefied gas is transported in a liquid state during transportation and reduce the possibility of leakage. At the same time, the protective cover can protect the liquid storage tank during transportation, and the storage mechanism can store the protective cover inside the liquid storage tank mounting groove, which is convenient for loading and unloading, convenient for use, and improves practicality and safety.

[0004] With regard to the above-mentioned related technologies, the liquid storage tank is cooled by setting up a refrigeration plate. The power consumption of the refrigeration plate is very large, and continuous operation will consume a large amount of electricity. At the same time, when the LNG tank body is cooled by the refrigeration end, the temperature of the heating end will increase the ambient temperature, so that the LNG tank will be affected by the ambient temperature, resulting in increased safety risks. Summary of the invention

[0005] The purpose of the present invention is to provide a dual-fuel bulk carrier tank transport protection device, which can solve the problem that the existing technology proposed in the above background technology consumes a lot of electricity when cooling the LNG tank, and at the same time increases the ambient temperature, resulting in increased safety risks.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dual-fuel bulk carrier tank transport protection device, comprising a shipboard, a water storage box and a water replenishing assembly are arranged at the upper end of the shipboard, and the water replenishing assembly is embedded and arranged on one side of the water storage box, a recovery assembly and a limit frame assembly are arranged at the upper end of the water storage box, and the recovery assembly is arranged on the inner side of the limit frame assembly, the LNG tank body is arranged between the recovery assembly and the limit frame assembly, a water spraying part is arranged on one side of the water storage box, and one end of the water spraying part is arranged on the upper end of the limit frame assembly, a fan part is arranged inside the limit frame assembly, and a control part is arranged on one side of the limit frame assembly, the limit frame assembly is used to limit the LNG tank body, the water storage box is used to store water, the water spraying part is used to spray water to reduce the temperature of the outer surface of the LNG tank body, the fan part is used to accelerate heat dissipation, the water replenishing assembly is used to replenish the water liquid inside the water storage box, and the recovery assembly is used to recover the water liquid;

[0007] The recovery component includes a mounting block arranged at the upper end of the water storage box and an anti-evaporation component arranged inside the mounting block, the LNG tank body is embedded in the upper end of the mounting block, a guide frame is fixedly arranged on the upper end of the mounting block, and the guide frame is a frame-shaped structure surrounded by inclined plates, the water replenishment component includes a water storage tank arranged on the upper end of the ship board and a water inlet component embedded between the water storage tank and the water storage box, a buoyancy component is arranged inside the water storage box, and the buoyancy component is connected to the water inlet component, the mounting block is used to limit the LNG tank body and guide the water liquid, the anti-evaporation component is used to reduce the evaporation of gas inside the water storage box, the guide frame is used to guide the water liquid, the water storage tank is used to store the water liquid, the water inlet component is used to connect and control the circulation of the water liquid between the water storage tank and the water storage box, and the buoyancy component is used to control the opening and closing of the water inlet component.

[0008] Furthermore, the limit frame assembly includes a first support frame fixedly connected to the upper surface of the water storage box near one side edge, a second support frame fixedly connected to the upper surface of the water storage box near the other side edge, a plurality of limit rods symmetrically fixedly connected to the upper end of the water storage box, and the limit rods are arranged between the first support frame and the second support frame, and a plurality of groups of the limit rods are embedded in the guide frame, the first support frame, the second support frame and the upper ends of the limit rods are threadedly connected to the limit frame by bolts, the upper end of the second support frame is fixedly connected to a fixing plate, the fan unit is fixedly arranged between the fixing plate and the water storage box, the spacing between the two groups of the limit rods arranged in the longer side direction of the first support frame is the same as the diameter of the LNG tank body, the spacing between the lower end of the limit frame and the water storage box is the same as the diameter of the LNG tank body, and the limit frame and the limit rods are both used to limit the LNG tank body.

[0009] Furthermore, an arc-shaped engaging groove is provided at the upper end of the mounting block, a limiting groove engaged with the lower end of the LNG tank body is provided on the inner wall of the arc-shaped engaging groove, and a distance is provided between the outer surface of the LNG tank body and the arc-shaped engaging groove, a water outlet hole connected with the interior of the water storage box is provided at the bottom of the limiting groove, mounting holes are provided on the inner wall of the arc-shaped engaging groove near both ends, and the mounting holes are arranged at the lowest point of the inner wall of the arc-shaped engaging groove, the two groups of anti-evaporation components are respectively arranged in the two groups of mounting holes, the limiting groove is used to prevent the LNG tank body from moving forward and backward, and the arc-shaped engaging groove can divert water.

[0010] Furthermore, the anti-evaporation component includes a funnel fixedly connected to the inner wall of the mounting hole and a first guide rod fixedly connected to the outer surface of the funnel, and two groups of first guide rods are provided, and a closing plate is movably connected through the two groups of first guide rods, and the area of ​​the closing plate is larger than the outlet area of ​​the lower end of the funnel, the first guide rod is used to guide the closing plate, and the closing plate is used to close the lower end of the funnel.

[0011] Furthermore, a support rod is fixedly connected to the inner wall of the mounting hole, and three groups of support rods are arranged in a ring, a mounting plate is fixedly connected between the three groups of support rods, a first spring is fixedly connected to the upper end of the mounting plate, the upper end of the first spring is fixedly connected to the lower end of the closing plate, and the first spring is used to push the closing plate to move.

[0012] Furthermore, a water storage cavity is provided inside the water storage box, a support column is fixedly connected to the inside of the water storage cavity, and multiple groups of support columns are provided. Two water inlet holes are provided at the upper end and intervals of the water storage box, and the two groups of water inlet holes are respectively connected to the inside of the two groups of mounting holes, and the support columns are used to support the water storage box.

[0013] Furthermore, the water inlet component includes a connecting pipe with one end embedded and fixedly connected to the outer surface of the water storage tank, the other end of the connecting pipe is embedded in the water storage box and extends into the water storage cavity, the inner wall of the connecting pipe is fixedly connected to a fixing plate, the middle of the fixing plate is provided with a circulation hole, one side of the fixing plate is fixedly connected to a second spring, the other end of the second spring is fixedly connected to a T-bar, one end of the T-bar passes through the second spring and the fixing plate and is fixedly connected to a blocking plate, and the blocking plate is arranged in contact with the fixing plate, the height of the lower end of the water storage tank is higher than the height of the upper end of the water storage cavity, the connecting pipe is used to connect the water storage tank and the water storage cavity, and the second spring is used to keep the blocking plate in contact with the fixing plate.

[0014] Furthermore, the buoyancy component includes a second guide rod fixedly connected to the inside of the water storage chamber, and the second guide rod is provided with two groups, the outer surfaces of the two groups of second guide rods are penetrated by a floating plate that is movably connected, the outer surface of the second guide rod is fixedly sleeved with a stop block, and the stop block is arranged in contact with the upper surface of the floating plate, and the second guide rod is used to limit the floating plate.

[0015] Furthermore, a counterweight block is fixedly connected to the lower end of the floating plate, the gravity of the counterweight block is lower than the buoyancy of the floating plate, and the gravity of the counterweight block is greater than the elastic force of the two groups of second springs. A connecting rope is fixedly connected to one side of the floating plate, one end of the connecting rope is fixedly connected to one end of the blocking plate, and the connecting rope is used to connect the blocking plate and the floating plate.

[0016] Furthermore, a temperature sensor is fixedly provided on the outer surface of the LNG tank body, and the temperature sensor, the fan part and the water spray part are all electrically connected to the control part.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention proposes a dual-fuel bulk carrier tank transport protection device. Through the arrangement of a guide component, an anti-evaporation component, a guide frame, a water storage tank, a water inlet component, and a buoyancy component, a control unit controls a water spray unit and a fan unit to start, so as to achieve heat dissipation. Water flowing down the LNG tank body can enter the interior of the arc-shaped interlocking groove, and the water enters the mounting hole along the curvature of the inner wall of the arc-shaped interlocking groove. When the water is collected in the funnel, the water can enter the interior of the water storage cavity through the mounting hole and the water inlet hole, so as to achieve water recovery. When the height of the liquid level in the water storage cavity is reduced, the water in the water storage tank enters the interior of the water storage cavity through the movement of the counterweight block and the floating plate, so as to achieve automatic water replenishment of the water in the water storage cavity, and the energy consumption is low, so as to reduce the energy consumption of the dual-fuel bulk carrier. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the disassembly of the water storage box, the limit frame assembly and the fan part structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the disassembly of the water storage box, recovery assembly and compressed gas tank structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the water storage box of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure disassembly of the anti-evaporation component of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the water replenishment component of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the water inlet component and the buoyancy component of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged detail of point A in the middle.

[0027] In the figure: 1, shipboard; 2, water storage box; 21, water storage chamber; 22, support column; 23, water inlet hole; 3, recovery assembly; 31, mounting block; 311, arc-shaped fitting groove; 312, mounting hole; 313, limit groove; 32, anti-evaporation component; 321, funnel; 322, first guide rod; 323, support rod; 324, mounting plate; 325, first spring; 326, closing plate; 33, guide frame; 4, limit frame assembly; 41, first support frame; 42, second support frame; 43, fixed Fixed plate; 44, limit frame; 45, limit rod; 5, LNG tank body; 51, temperature sensor; 6, water spray unit; 7, water replenishment assembly; 71, water storage tank; 72, water inlet component; 721, connecting pipe; 722, fixing plate; 7221, flow hole; 723, second spring; 724, T-bar; 725, blocking plate; 73, buoyancy component; 731, second guide rod; 732, floating plate; 733, counterweight; 734, connecting rope; 735, counterweight; 8, fan unit; 9, control unit. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1 , Figure 3 and Figure 6 As shown, a dual-fuel bulk carrier tank transport protection device includes a shipboard 1, a water storage box 2 and a water replenishing component 7 are arranged on the upper end of the shipboard 1, and the water replenishing component 7 is embedded and arranged on one side of the water storage box 2, a recovery component 3 and a limit frame component 4 are arranged on the upper end of the water storage box 2, and the recovery component 3 is arranged on the inner side of the limit frame component 4, and the LNG tank body 5 is arranged between the recovery component 3 and the limit frame component 4, a water spraying part 6 is arranged on one side of the water storage box 2, and one end of the water spraying part 6 is arranged on the upper end of the limit frame component 4, a fan part 8 is arranged inside the limit frame component 4, and a control part 9 is arranged on one side of the limit frame component 4, the limit frame component 4 is used to limit the LNG tank body 5, the water storage box 2 is used to store water, the water spraying part 6 is used to spray water to reduce the temperature of the outer surface of the LNG tank body 5, the fan part 8 is used to accelerate heat dissipation, the water replenishing component 7 is used to replenish the water liquid inside the water storage box 2, and the recovery component 3 is used to recover the water liquid;

[0030] The recovery component 3 includes a mounting block 31 arranged at the upper end of the water storage box 2 and an anti-evaporation component 32 arranged inside the mounting block 31. The LNG tank body 5 is embedded in the upper end of the mounting block 31. A guide frame 33 is fixedly arranged on the upper end of the mounting block 31. The guide frame 33 is a frame structure surrounded by inclined plates. The water replenishment component 7 includes a water storage tank 71 arranged at the upper end of the ship board 1 and a water inlet component 72 embedded between the water storage tank 71 and the water storage box 2. A buoyancy component 73 is arranged inside the water storage box 2, and the buoyancy component 73 is connected to the water inlet component 72. The mounting block 31 is used to limit the LNG tank body 5 and guide the water. The anti-evaporation component 32 is used to reduce the evaporation of gas inside the water storage box 2. The guide frame 33 is used to guide the water. The water storage tank 71 is used to store water. The water inlet component 72 is used to connect and control the circulation of water between the water storage tank 71 and the water storage box 2. The buoyancy component 73 is used to control the opening and closing of the water inlet component 72.

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] See also Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 The limiting frame assembly 4 includes a first support frame 41 fixedly connected to the upper surface of the water storage box 2 near one side edge, a second support frame 42 fixedly connected to the upper surface of the water storage box 2 near the other side edge, a plurality of limiting rods 45 symmetrically fixedly connected to the upper end of the water storage box 2, and the limiting rods 45 are arranged between the first supporting frame 41 and the second supporting frame 42, and a plurality of groups of limiting rods 45 are embedded with the guide frame 33. The upper ends of the first supporting frame 41, the second supporting frame 42 and the limiting rod 45 are threadedly connected to the limiting frame 44 by bolts, and the upper end of the second supporting frame 42 is fixedly connected to a fixed The plate 43 and the fan unit 8 are fixedly arranged between the fixed plate 43 and the water storage box 2. The spacing between the two groups of limit rods 45 arranged in the longer side direction of the first support frame 41 is the same as the diameter of the LNG tank body 5. The spacing between the lower end of the limit frame 44 and the water storage box 2 is the same as the diameter of the LNG tank body 5. The limit frame 44 and the limit rod 45 are both used to limit the LNG tank body 5. The setting of the limit rod 45 can avoid the left and right displacement of the LNG tank body 5. The setting of the limit frame 44 can avoid the up and down displacement of the LNG tank body 5, and the limiting of the LNG tank body 5 can be achieved.

[0033] An arc-shaped engaging groove 311 is provided at the upper end of the mounting block 31, and a limiting groove 313 which is engaged with the lower end of the LNG tank body 5 is provided on the inner wall of the arc-shaped engaging groove 311, and a distance is provided between the outer surface of the LNG tank body 5 and the arc-shaped engaging groove 311, and a water outlet hole which is connected with the inside of the water storage box 2 is provided at the bottom of the limiting groove 313, and mounting holes 312 are provided near both ends of the inner wall of the arc-shaped engaging groove 311, and the mounting holes 312 are arranged at the lowest point of the inner wall of the arc-shaped engaging groove 311, and two groups of anti-evaporation components 32 are respectively arranged in the two groups of mounting holes 312, and the limiting groove 313 is used to prevent the LNG tank body 5 from moving forward and backward, and the arc-shaped engaging groove 311 can guide the water, and after the water enters the arc-shaped engaging groove 311, it will gather at the lowest point of the inner wall of the mounting block 31, so that the water can enter the mounting hole 312.

[0034] The anti-evaporation component 32 includes a funnel 321 fixedly connected to the inner wall of the mounting hole 312 and a first guide rod 322 fixedly connected to the outer surface of the funnel 321, and two groups of first guide rods 322 are provided, and a closing plate 326 is movably connected through the two groups of first guide rods 322, and the area of ​​the closing plate 326 is larger than the outlet area of ​​the lower end of the funnel 321. The first guide rod 322 is used to guide the closing plate 326, and the closing plate 326 is used to close the lower end of the funnel 321.

[0035] The closure 326 is provided with a plurality of springs, each of which is provided with a plurality of springs, and the plurality of springs are provided with a plurality of springs. The plurality of springs are provided with a plurality of springs, each of which is provided with a plurality of springs. The plurality of springs are provided with a plurality of springs, each of which is provided with a plurality of springs.

[0036] A water storage chamber 21 is provided inside the water storage box 2, and a support column 22 is fixedly connected to the inside of the water storage chamber 21, and multiple groups of support columns 22 are provided. Two water inlet holes 23 are provided at the upper end and intervals of the water storage box 2. The two groups of water inlet holes 23 are respectively connected to the inside of the two groups of mounting holes 312. The support column 22 is used to support the water storage box 2. The support of the support column 22 can prevent the middle part of the water storage box 2 from collapsing due to lack of support, and the water in the mounting hole 312 can enter the water storage chamber 21 through the water inlet hole 23.

[0037] The water inlet component 72 includes a connecting pipe 721 at one end which is embedded and fixedly connected with the outer surface of the water storage tank 71, the other end of the connecting pipe 721 is embedded in the water storage box 2 and extends into the water storage cavity 21, the inner wall of the connecting pipe 721 is fixedly connected with a fixing plate 722, the middle part of the fixing plate 722 is provided with a flow hole 7221, one side of the fixing plate 722 is fixedly connected with a second spring 723, the other end of the second spring 723 is fixedly connected with a T-shaped rod 724, one end of the T-shaped rod 724 passes through the second spring 723 and the fixing plate 722 and is fixedly connected with a blocking plate 725, and the blocking plate 725 is fixedly connected with the fixing plate 722. The blocking plate 725 is arranged in contact with the fixed plate 722, the height of the lower end of the water tank 71 is higher than the height of the upper end of the water storage chamber 21, the connecting pipe 721 is used to connect the water tank 71 and the water storage chamber 21, and the second spring 723 is used to keep the blocking plate 725 in contact with the fixed plate 722. The blocking plate 725 is made to fit with the fixed plate 722 through the second spring 723. At this time, the flow hole 7221 is blocked by the blocking plate 725, and water cannot enter the water storage chamber 21. By setting the height difference between the water tank 71 and the water storage chamber 21, water backflow can be avoided.

[0038] The buoyancy component 73 includes a second guide rod 731 fixedly connected to the inside of the water storage chamber 21, and the second guide rod 731 is provided with two groups, and the outer surfaces of the two groups of second guide rods 731 are penetrated by a floating plate 732 that is movably connected, and the outer surface of the second guide rod 731 is fixedly sleeved with a stopper 735, and the stopper 735 is provided in contact with the upper surface of the floating plate 732. The second guide rod 731 is used to limit the floating plate 732. The floating plate 732 floats on the water inside the water storage chamber 21. The floating plate 732 can be vertically moved along the second guide rod 731 through the change of the liquid level inside the water storage chamber 21. The stopper 735 is used to limit the floating position of the floating plate 732.

[0039] A counterweight block 733 is fixedly connected to the lower end of the floating plate 732. The gravity of the counterweight block 733 is lower than the buoyancy of the floating plate 732. The gravity of the counterweight block 733 is greater than the elastic force of the two groups of second springs 723. A connecting rope 734 is fixedly connected to one side of the floating plate 732. One end of the connecting rope 734 is fixedly connected to one end of the blocking plate 725. The connecting rope 734 is used to connect the blocking plate 725 and the floating plate 732. The weight of the floating plate 732 can be lifted by the counterweight block 733. When the liquid level inside the water storage chamber 21 drops, the counterweight block 733 and the floating plate 732 will both move downward, so that the connecting rope 734 pulls the blocking plate 725 to move. At this time, the water inside the water storage tank 71 can enter the water storage chamber 21 through the connecting pipe 721.

[0040] A temperature sensor 51 is fixedly installed on the outer surface of the LNG tank body 5. The temperature sensor 51, the fan part 8 and the water spray part 6 are all electrically connected to the control part 9. The control part 9 is used to control the opening and closing of the water spray part 6 and the fan part 8.

[0041] Specifically, when the temperature sensor 51 detects that the temperature of the LNG tank body 5 reaches a threshold value, the control unit 9 controls the water spray unit 6 and the fan unit 8 to start, and the water spray unit 6 sprays water onto the outer surface of the LNG tank body 5. The fan unit 8 can accelerate the evaporation of the water to achieve heat dissipation. At the same time, the fan unit 8 can expand the range of water spraying, so that the heat dissipation of the LNG tank body 5 is more uniform. The water flowing down the outer surface of the LNG tank body 5 can enter the arc-shaped interlocking groove 311 through the guidance of the guide frame 33. The water enters the mounting hole 312 along the curvature of the inner wall of the arc-shaped interlocking groove 311. When the water gathers in the funnel 321, the water can enter through the mounting hole 312 and the water inlet hole 23. Water is recovered inside the water storage chamber 21, and circulating heat dissipation of water can be achieved through the spraying and recovery of water. Since water loss will occur during circulating heat dissipation, when the height of the liquid level inside the water storage chamber 21 is reduced, the weight of the counterweight block 733 and the floating plate 732 can separate the blocking plate 725 from the fixed plate 722, so that the water inside the water tank 71 enters the water storage chamber 21 until the height of the liquid level inside the water storage chamber 21 makes the floating plate 732 float and no longer pulls the fixed plate 722, so that the water inside the water storage chamber 21 can be automatically replenished, and the liquid level inside the water storage chamber 21 can be maintained at a certain height to prevent water from escaping, and the energy consumption is low, which can reduce the energy consumption of dual-fuel bulk carriers.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dual-fuel bulk carrier tank transport protection device, comprising a ship plate (1), characterized in that: The upper end of the shipboard (1) is provided with a water storage box (2) and a water replenishment component (7), and the water replenishment component (7) is embedded in one side of the water storage box (2); the upper end of the water storage box (2) is provided with a recovery component (3) and a limit frame component (4), and the recovery component (3) is arranged inside the limit frame component (4); the LNG tank body (5) is arranged between the recovery component (3) and the limit frame component (4); a water spraying part (6) is provided on one side of the water storage box (2), and one end of the water spraying part (6) is arranged on the limit frame component (4); At the upper end of the frame assembly (4), a fan unit (8) is arranged inside the limiting frame assembly (4), a control unit (9) is arranged on one side of the limiting frame assembly (4), the limiting frame assembly (4) is used to limit the position of the LNG tank body (5), the water storage box (2) is used to store water, the water spraying unit (6) is used to spray water to reduce the temperature of the outer surface of the LNG tank body (5), the fan unit (8) is used to accelerate heat dissipation, the water replenishing assembly (7) is used to replenish the water in the water storage box (2), and the recovery assembly (3) is used to recover the water; The recovery component (3) comprises a mounting block (31) arranged at the upper end of the water storage box (2) and an anti-evaporation component (32) arranged inside the mounting block (31); the LNG tank body (5) is embedded in the upper end of the mounting block (31); a flow guide frame (33) is fixedly arranged at the upper end of the mounting block (31); the flow guide frame (33) is a frame-shaped structure surrounded by inclined plates; the water replenishment component (7) comprises a water storage tank (71) arranged at the upper end of the shipboard (1) and a water inlet component (72) embedded between the water storage tank (71) and the water storage box (2); the water storage box (2) a buoyancy component (73) is provided inside, and the buoyancy component (73) is connected to the water inlet component (72), the mounting block (31) is used to limit the position of the LNG tank body (5) and to guide the water liquid, the anti-evaporation component (32) is used to reduce the evaporation of the gas inside the water storage box (2), the guide frame (33) is used to guide the water liquid, the water storage tank (71) is used to store the water liquid, the water inlet component (72) is used to connect and control the flow of the water liquid between the water storage tank (71) and the water storage box (2), and the buoyancy component (73) is used to control the opening and closing of the water inlet component (72); The upper end of the mounting block (31) is provided with an arc-shaped engaging groove (311), the inner wall of the arc-shaped engaging groove (311) is provided with a limiting groove (313) engaged with the lower end of the LNG tank body (5), and a distance is provided between the outer surface of the LNG tank body (5) and the arc-shaped engaging groove (311), the bottom of the limiting groove (313) is provided with a water outlet hole connected to the inside of the water storage box (2), the inner wall of the arc-shaped engaging groove (311) is provided with mounting holes (312) near both ends, and the mounting holes (312) are arranged at the lowest point of the inner wall of the arc-shaped engaging groove (311), the two groups of anti-evaporation components (32) are respectively arranged inside the two groups of mounting holes (312), the limiting groove (313) is used to prevent the LNG tank body (5) from moving forward and backward, and the arc-shaped engaging groove (311) can guide water; The water storage box (2) has a water storage cavity (21) formed therein, a support column (22) is fixedly connected to the water storage cavity (21), and a plurality of support columns (22) are provided. Two water inlet holes (23) are formed at an interval at the upper end of the water storage box (2), and the two groups of water inlet holes (23) are respectively connected to the inside of the two groups of mounting holes (312), and the support column (22) is used to support the water storage box (2); The water inlet component (72) comprises a connecting pipe (721) having one end embedded in and fixedly connected to the outer surface of the water storage tank (71); the other end of the connecting pipe (721) is embedded in the water storage box (2) and extends into the water storage cavity (21); a fixing plate (722) is fixedly connected to the inner wall of the connecting pipe (721); a flow hole (7221) is provided in the middle of the fixing plate (722); a second spring (723) is fixedly connected to one side of the fixing plate (722); and the other end of the second spring (723) is fixedly connected to a T-shaped rod ( 724), one end of the T-shaped rod (724) passes through the second spring (723) and the fixed plate (722) and is fixedly connected to a blocking plate (725), and the blocking plate (725) is arranged in contact with the fixed plate (722), the height of the lower end of the water storage tank (71) is higher than the height of the upper end of the water storage chamber (21), the connecting pipe (721) is used to connect the water storage tank (71) and the water storage chamber (21), and the second spring (723) is used to keep the blocking plate (725) and the fixed plate (722) in contact; The buoyancy component (73) comprises a second guide rod (731) fixedly connected to the inside of the water storage chamber (21), and the second guide rod (731) is provided in two groups, and the outer surfaces of the two groups of second guide rods (731) are penetrated by a floating plate (732) that is movably connected, and the outer surface of the second guide rod (731) is fixedly sleeved with a stopper (735), and the stopper (735) is arranged in contact with the upper surface of the floating plate (732), and the second guide rod (731) is used to limit the floating plate (732); A counterweight (733) is fixedly connected to the lower end of the floating plate (732); the gravity of the counterweight (733) is lower than the buoyancy of the floating plate (732); the gravity of the counterweight (733) is greater than the elastic force of the two groups of second springs (723); a connecting rope (734) is fixedly connected to one side of the floating plate (732); one end of the connecting rope (734) is fixedly connected to one end of the blocking plate (725); the connecting rope (734) is used to connect the blocking plate (725) and the floating plate (732).

2. A dual-fuel bulk carrier tank transport protection device as claimed in claim 1, characterized in that: The limiting frame assembly (4) comprises a first support frame (41) fixedly connected to the upper surface of the water storage box (2) near one side edge, a second support frame (42) fixedly connected to the upper surface of the water storage box (2) near the other side edge, a plurality of limiting rods (45) symmetrically fixedly connected to the upper end of the water storage box (2), and the limiting rods (45) are arranged between the first support frame (41) and the second support frame (42), a plurality of groups of the limiting rods (45) are arranged in an inlaid manner with the guide frame (33), and the first support frame (41), the second support frame (42) and the limiting rods (45) are arranged in an inlaid manner with the guide frame (33). The upper end is threadedly connected to a limiting frame (44) by means of bolts; the upper end of the second support frame (42) is fixedly connected to a fixing plate (43); the fan unit (8) is fixedly arranged between the fixing plate (43) and the water storage box (2); the spacing between the two groups of limiting rods (45) arranged in the longer side direction of the first support frame (41) is the same as the diameter of the LNG tank body (5); the spacing between the lower end of the limiting frame (44) and the water storage box (2) is the same as the diameter of the LNG tank body (5); and both the limiting frame (44) and the limiting rods (45) are used to limit the LNG tank body (5).

3. A dual-fuel bulk carrier tank transport protection device as claimed in claim 1, characterized in that: The anti-evaporation component (32) comprises a funnel (321) fixedly connected to the inner wall of the mounting hole (312) and a first guide rod (322) fixedly connected to the outer surface of the funnel (321), and two groups of the first guide rods (322) are provided, and a closing plate (326) is movably connected to the two groups of the first guide rods (322), and the area of ​​the closing plate (326) is larger than the outlet area of ​​the lower end of the funnel (321), the first guide rod (322) is used to guide the closing plate (326), and the closing plate (326) is used to close the lower end of the funnel (321).

4. A dual-fuel bulk carrier tank transport protection device as claimed in claim 3, characterized in that: A support rod (323) is fixedly connected to the inner wall of the mounting hole (312), and three groups of support rods (323) are arranged in an annular shape. A mounting plate (324) is fixedly connected between the three groups of support rods (323). A first spring (325) is fixedly connected to the upper end of the mounting plate (324). The upper end of the first spring (325) is fixedly connected to the lower end of the closing plate (326). The first spring (325) is used to push the closing plate (326) to move.

5. A dual-fuel bulk carrier tank transport protection device as claimed in claim 1, characterized in that: A temperature sensor (51) is fixedly arranged on the outer surface of the LNG tank body (5); the temperature sensor (51), the fan unit (8) and the water spray unit (6) are all electrically connected to the control unit (9).

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