A carbon dioxide liquefaction storage device for ships

Abstract

The present invention relates to the field of carbon dioxide liquefaction storage, and discloses a carbon dioxide liquefaction storage device for ships, comprising a first chassis, a bottom cylinder and a storage tank body, wherein the bottom cylinder is installed on the first chassis, a mounting plate is inserted into the top of the bottom cylinder, a first buffer structure is arranged in the middle of the bottom cylinder, a second buffer structure is arranged between the mounting plate and the bottom cylinder, the storage tank body is installed on the mounting plate, an anti-dumping structure is arranged between the storage tank body and the first chassis, and an anti-impact structure is arranged in the storage tank body. When the ship drives the storage tank body to shake, the driving structure automatically drives multiple buffer plates on the anti-impact structure to move back and forth along the radial direction of the storage tank body. The movement of the buffer plates along the axial direction of the storage tank body can buffer the shaking liquefied carbon dioxide, reduce the deformation caused by the liquefied carbon dioxide hitting the inner wall of the storage tank body, and extend the service life of the storage tank body.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon dioxide liquefaction storage, and in particular to a carbon dioxide liquefaction storage device for ships. Background Art

[0002] In recent years, carbon dioxide liquefaction storage technology has been widely used in the field of energy storage. Carbon dioxide liquefaction storage refers to the conversion of gaseous carbon dioxide into liquid carbon dioxide through a compression and cooling process and its storage. When ships use carbon dioxide liquefaction storage, storage devices are used.

[0003] In the prior art, a ship-used carbon dioxide liquefied storage device stores the ship-used liquefied carbon dioxide in a storage tank. However, when a ship is traveling on the water, the ship is prone to shaking, which causes the liquefied carbon dioxide to shake in the storage tank. The long-term shaking liquefied carbon dioxide hits the inner wall of the storage tank, which can easily cause the inner wall of the storage tank to deform. Therefore, there is room for improvement. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a carbon dioxide liquefaction storage device for ships.

[0005] The present invention provides a carbon dioxide liquefaction storage device for ships, which adopts the following technical solutions:

[0006] A carbon dioxide liquefaction storage device for ships comprises a first chassis, a bottom barrel, and a storage tank body. The bottom barrel is mounted on the first chassis, a mounting plate is inserted into the top of the bottom barrel, a first buffer structure is provided in the middle of the bottom barrel, a second buffer structure is provided between the mounting plate and the bottom barrel, the storage tank body is mounted on the mounting plate, an anti-dumping structure is provided between the storage tank body and the first chassis, an anti-impact structure is provided inside the storage tank body, a third buffer structure is provided above the outer side surface of the storage tank body, and a fourth buffer structure is provided on the lower inner wall of the storage tank body.

[0007] The impact-resistant structure includes multiple groups of fixed cylinders connected to the inner wall of the storage tank body, each of which is movably inserted with an insertion rod, and each group of two insertion rods is connected to a driving plate at one end, and a buffer plate is installed on the side of the driving plate away from the insertion rod, and the buffer plate is in a "V" shape. A driving structure is set in the storage tank body;

[0008] The driving structure includes a cylinder installed in the middle of the storage tank body, the cylinder output shaft is inserted into the storage tank body and one end is connected to the lifting rod, the bottom end of the lifting rod is installed with a lifting block, the side of the lifting block is connected to multiple connecting rods, and one end of the connecting rod is installed with a driving ring, each of the driving plates is provided with a driving groove, and the driving ring moves through the driving groove.

[0009] Preferably, the third buffer structure includes a buffer cylinder installed above the side of the storage tank body, the lower inner wall of the buffer cylinder is an inclined surface, and a plurality of buffer grooves are opened on the inner wall of the storage tank body. The buffer grooves are connected to the buffer cylinder, and the buffer grooves are arranged at the positions corresponding to the buffer plates, and a sealing structure is provided at the buffer grooves.

[0010] Preferably, the blocking structure includes a plug inserted into the buffer groove, the plug is connected to a fixing rod, and the bottom end of the fixing rod is connected to the driving plate.

[0011] Preferably, the fourth buffer structure includes a plurality of buffer cavities opened on the lower inner wall of the storage tank body and the mounting plate, a bottom groove is opened in the mounting plate below the buffer cavity, a lifting plate is provided at the bottom of the bottom groove, a plurality of vertical rods are connected to the edge of the upper edge of the lifting plate, the top end of the vertical rod is movably inserted into the buffer cavity, a piston is installed on the top end of the vertical rod, a connecting column is connected to the middle of the upper part of the lifting plate, the connecting column is movably inserted into the top end of the storage tank body and connected to the lifting block.

[0012] Preferably, the first buffer structure includes a fixed tube installed in the middle of the lower inner wall of the bottom tube, a buffer column is movably inserted into the fixed tube, the top of the buffer column is connected to the mounting plate, a first spring is sleeved on the buffer column, and the two ends of the first spring are respectively connected to the mounting plate and the top of the fixed tube.

[0013] Preferably, the second buffer structure includes a plurality of U-shaped seats installed at the edge of the lower inner wall of the bottom cylinder, a cross bar is connected between the inner walls at both ends of the U-shaped seat, a buffer block is movably mounted on the cross bar, a second spring is mounted on the cross bar, both ends of the second spring are respectively connected to the buffer block and the U-shaped seat, a curved rod is rotatably connected between the buffer block and the bottom of the mounting plate, and a tightening reinforcement structure is provided under the bottom of the bottom cylinder.

[0014] Preferably, the tightening reinforcement structure includes a plurality of radial grooves provided under the bottom cylinder, each of the radial grooves being located under a corresponding U-shaped seat, an extrusion plate being movable through the bottom of the U-shaped seat, the extrusion plate being movably inserted into the radial groove and connected to a tightening plate at the bottom end, an extrusion groove being provided on the extrusion plate, a U-shaped rod being connected to the buffer block, and the U-shaped rod being movable through the extrusion groove.

[0015] Preferably, the anti-dumping structure includes an intermediate ring fixedly mounted on the storage tank body, a plurality of grooves are provided on the side of the intermediate ring, a fixed shaft is connected between the groove walls on both sides of each groove, a sleeve rod is movably mounted on the fixed shaft, a sleeve tube is movably mounted on the bottom end of the sleeve rod, a fixed plate is provided at the position corresponding to each sleeve tube on the side of the first chassis, the bottom end of the sleeve tube is rotatably connected to the fixed plate, a fixing ring is fixedly mounted on the sleeve rod near the top, and a third spring is connected between the fixing ring and the top end of the sleeve tube.

[0016] In summary, the present invention has the following beneficial technical effects:

[0017] 1. The present invention provides a third buffer structure, a driving structure, a blocking structure, and an anti-impact structure. When the ship drives the storage tank body to rock, the driving structure automatically drives the multiple buffer plates on the anti-impact structure to move back and forth along the radial direction of the storage tank body. The movement of the buffer plates along the axial direction of the storage tank body can buffer the rocking liquefied carbon dioxide, reduce the deformation caused by the liquefied carbon dioxide hitting the inner wall of the storage tank body, and extend the service life of the storage tank body. In addition, when the buffer plates move, they can also open the blocking structure at the third buffer structure, so that the rocking liquefied carbon dioxide can enter the buffer cylinder of the third buffer structure, reducing the impact force generated by the rocking of the liquefied carbon dioxide and further playing a buffering role.

[0018] 2. The present invention provides a fourth buffer structure. When the storage tank body sways with the ship, the driving structure drives the piston on the fourth buffer structure to move up and down in the buffer cavity, thereby sucking liquefied carbon dioxide at the bottom of the storage tank body, thereby further buffering and better protecting the storage tank body.

[0019] 3. The present invention is provided with a first buffer structure, a second buffer structure, a tightening reinforcement structure and an anti-dumping structure. The first buffer structure and the second buffer structure can provide buffering from the outside of the storage tank body when the ship shakes, and the second buffer structure can also drive the tightening plate on the tightening reinforcement structure to press against the ground of the ship's hold when providing buffering, thereby increasing the firmness of the storage tank body; by providing an anti-tilting structure, the problem of the storage tank body tipping over can be avoided when the ship shakes violently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a carbon dioxide liquefaction storage device for ships according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure inside the storage tank body in an embodiment of the present invention;

[0022] Figure 3 In the embodiment of the present invention Figure 2 A magnified view of the structure at point A;

[0023] Figure 4 In the embodiment of the present invention Figure 2 A magnified view of the structure at point B;

[0024] Figure 5 This is a schematic diagram of the structure inside the bottom tube in an embodiment of the present invention;

[0025] Figure 6 In the embodiment of the present invention Figure 5 A magnified view of the structure at point C;

[0026] Figure 7 In the embodiment of the present invention Figure 5 A magnified view of the structure at D;

[0027] Figure 8 It is a schematic structural diagram of the bottom of the chassis in an embodiment of the present invention.

[0028] Explanation of reference numerals: 1. first chassis; 2. bottom cylinder; 3. mounting plate; 4. storage tank body; 5. cylinder; 6. lifting rod; 7. lifting block; 8. connecting rod; 9. driving ring; 10. fixing cylinder; 11. inserting rod; 12. driving plate; 13. driving groove; 14. buffer cylinder; 15. buffer groove; 16. fixing rod; 17. plug; 18. bottom groove; 19. lifting plate; 20. vertical rod; 21. buffer chamber; 22. piston; 23 , buffer plate; 24, fixed tube; 25, buffer column; 26, first spring; 27, curved rod; 28, U-shaped seat; 29, cross bar; 30, second spring; 31, buffer block; 32, U-shaped rod; 33, extrusion plate; 34, extrusion groove; 35, radial groove; 36, tightening plate; 37, intermediate ring; 38, groove; 39, fixed shaft; 40, sleeve rod; 41, fixed ring; 42, third spring; 43, sleeve; 44, fixed plate. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1-8 The present invention is described in further detail.

[0030] Reference Figures 1-8 The embodiment of the present invention discloses a carbon dioxide liquefaction storage device for ships, comprising a first chassis 1, a bottom cylinder 2, and a storage tank body 4. The bottom cylinder 2 is mounted on the first chassis 1, a mounting plate 3 is inserted into the top of the bottom cylinder 2, a first buffer structure is arranged in the middle of the bottom cylinder 2, a second buffer structure is arranged between the mounting plate 3 and the bottom cylinder 2, the storage tank body 4 is mounted on the mounting plate 3, an anti-dumping structure is arranged between the storage tank body 4 and the first chassis 1, an anti-impact structure is arranged inside the storage tank body 4, a third buffer structure is arranged above the outer side of the storage tank body 4, and a fourth buffer structure is arranged on the lower inner wall of the storage tank body 4;

[0031] The impact-resistant structure includes multiple groups of fixed cylinders 10 connected to the inner wall of the storage tank body 4. A rod 11 is movably inserted into each fixed cylinder 10. One end of each group of two rods 11 is connected to a driving plate 12. A buffer plate 23 is installed on the side of the driving plate 12 away from the rod 11. The buffer plate 23 is in a "V" shape. A driving structure is set in the storage tank body 4;

[0032] The driving structure includes a cylinder 5 installed in the middle of the storage tank body 4. The output shaft of the cylinder 5 is inserted into the storage tank body 4 and one end is connected to the lifting rod 6. The bottom end of the lifting rod 6 is installed with a lifting block 7. The side of the lifting block 7 is connected to multiple connecting rods 8. One end of the connecting rod 8 is installed with a driving ring 9. Each driving plate 12 is provided with a driving groove 13. The driving ring 9 moves through the driving groove 13.

[0033] The third buffer structure includes a buffer cylinder 14 installed on the upper side of the storage tank body 4. The lower inner wall of the buffer cylinder 14 is an inclined surface. The inner wall of the storage tank body 4 is provided with a plurality of buffer grooves 15. The buffer grooves 15 are connected to the buffer cylinder 14. The buffer grooves 15 are arranged at the positions corresponding to the buffer plates 23. A blocking structure is provided at the buffer grooves 15.

[0034] The blocking structure includes a plug 17 inserted into the buffer groove 15, the plug 17 is connected to a fixing rod 16, and the bottom end of the fixing rod 16 is connected to the driving plate 12;

[0035] The fourth buffer structure includes a plurality of buffer cavities 21 provided on the lower inner wall of the storage tank body 4 and the mounting plate 3. A bottom groove 18 is provided in the mounting plate 3 below the buffer cavity 21. A lifting plate 19 is provided at the bottom of the bottom groove 18. A plurality of vertical rods 20 are connected to the edge of the upper edge of the lifting plate 19. The top of the vertical rod 20 is movably inserted into the buffer cavity 21. A piston 22 is installed on the top of the vertical rod 20. A connecting column 45 is connected to the middle of the upper end of the lifting plate 19. The connecting column 45 is movably inserted into the top end of the storage tank body 4 and is connected to the lifting block 7. When the ship drives the storage tank body 4 to shake, the liquefied carbon dioxide in the storage tank body 4 shakes and impacts the inner wall of the storage tank body 4. At this time, the starting cylinder 5 drives the lifting block 7 and the driving ring 9 to move up and down as a whole. When the driving ring 9 moves downward, the driving ring 9 squeezes the wall of the driving groove 13 on the driving plate 12, pushing the buffer plate 23, the driving plate 12 and the insertion rod 11 as a whole toward the storage tank. The storage tank body 4 moves in the axial direction, and the buffer plate 23 is used to block and buffer the shaking liquefied carbon dioxide, thereby reducing the pressure of the liquefied carbon dioxide impact on the inner wall of the storage tank body 4, and reducing the deformation of the inner wall of the storage tank body 4 during long-term use. When the driving ring 9 moves upward, it pushes the buffer plate 23 to reset. Since the buffer plate 23 is in a "V" shape, when the buffer plate 23 moves in the opposite direction to reset, the resistance of the buffer plate 23 when resetting can be reduced. At the same time, the lifting block 7 moves up and down, and can also drive the lifting plate 19 at the bottom end of the connecting column 45 to move up and down in the bottom groove 18, thereby driving the top piston 22 of the vertical rod 20 to move up and down in the buffer chamber 21. When the liquefied carbon dioxide in the storage tank body 4 shakes, the liquefied carbon dioxide is sucked from the bottom of the storage tank body 4, at the bottom of the storage tank body 4, to reduce the impact of the liquefied carbon dioxide on the storage tank body 4, and the buffering effect is better.

[0036] See also Figure 4-Figure 7The first buffer structure includes a fixed tube 24 installed in the middle of the lower inner wall of the bottom tube 2, a buffer column 25 is movably inserted into the fixed tube 24, the top of the buffer column 25 is connected to the mounting plate 3, and a first spring 26 is sleeved on the buffer column 25. The two ends of the first spring 26 are respectively connected to the mounting plate 3 and the top of the fixed tube 24;

[0037] The second buffer structure includes a plurality of U-shaped seats 28 mounted on the edge of the lower inner wall of the bottom cylinder 2. A cross bar 29 is connected between the inner walls of the two ends of the U-shaped seat 28. A buffer block 31 is movably mounted on the cross bar 29. A second spring 30 is mounted on the cross bar 29. The two ends of the second spring 30 are respectively connected to the buffer block 31 and the U-shaped seat 28. The buffer block 31 is rotatably connected to the bottom of the mounting plate 3 by a curved rod 27. A tightening reinforcement structure is provided on the bottom of the bottom cylinder 2.

[0038] The tightening reinforcement structure includes a plurality of radial grooves 35 provided under the bottom tube 2, each radial groove 35 is located under the corresponding U-shaped seat 28, the U-shaped seat 28 is movable through the extrusion plate 33, the extrusion plate 33 is movably inserted into the radial groove 35, and the bottom end is connected to the tightening plate 36, the extrusion plate 33 is provided with an extrusion groove 34, the buffer block 31 is connected to the U-shaped rod 32, and the U-shaped rod 32 is movable through the extrusion groove 34. When the ship sways on the water, it drives the storage tank body 4 to rotate, so that the buffer column 25 is used to move in the fixed tube 24 to drive the deformation of the first spring 26, which can be rotated along the vertical direction. The straight direction has a buffering effect on the storage tank body 4, and the force generated by part of the shaking is transmitted to the buffer block 31 through the curved rod 27, and the buffer block 31 is used to drive the deformation of the second spring 30, so as to perform buffering work in different directions, and the buffering effect is better. When the buffer block 31 moves, it drives the U-shaped rod 32 to move in the extrusion groove 34. The U-shaped rod 32 squeezes the groove wall of the extrusion groove 34, pushing the extrusion plate 33 to drive the pressing plate 36 to press against the ground, thereby increasing the installation firmness of the storage tank body 4 during the external buffering process.

[0039] See also Figure 1 、 Figure 4 and Figure 5The anti-dumping structure includes an intermediate ring 37 fixedly sleeved on the storage tank body 4, and a plurality of grooves 38 are opened on the side of the intermediate ring 37. A fixed shaft 39 is connected between the groove walls on both sides of each groove 38, and a sleeve rod 40 is movably sleeved on the fixed shaft 39. The bottom end of the sleeve rod 40 is movably sleeved with a sleeve 43. A fixing plate 44 is provided at the position corresponding to each sleeve 43 on the side of the first chassis 1. The bottom end of the sleeve 43 is rotatably connected to the fixing plate 44. A fixing ring 41 is fixedly sleeved near the top of the sleeve rod 40, and a third spring 42 is connected between the fixing ring 41 and the top of the sleeve 43. When the storage tank body 4 is shaking, the sleeve rod 40 moves in the sleeve 43 in the corresponding direction, driving the deformation of the third spring 42 to play a buffering role, thereby reducing the problem of the storage tank body 4 tipping over due to violent shaking.

[0040] The implementation principle of a carbon dioxide liquefied storage device for ships according to an embodiment of the present invention is as follows: first, the storage tank body 4 is fixed inside the ship by bolts on the fixing plate 44. When the ship travels on the water, the storage tank body 4 is driven to shake, and the liquefied carbon dioxide in the storage tank body 4 shakes and impacts the inner wall of the storage tank body 4. At this time, the start cylinder 5 drives the lifting block 7 and the driving ring 9 to move up and down as a whole. When the driving ring 9 moves downward, the driving ring 9 squeezes the wall of the driving groove 13 on the driving plate 12, pushing the buffer plate 23, the driving plate 12 and the insertion rod 11 as a whole to move toward the axial center direction of the storage tank body 4. The buffer plate 23 is used to block and buffer the shaking liquefied carbon dioxide, thereby reducing the pressure of the liquefied carbon dioxide impact on the inner wall of the storage tank body 4 and reducing the deformation of the inner wall of the storage tank body 4 caused by long-term use. When the driving ring 9 moves upward, it pushes the buffer plate 23 to reset. Since the buffer plate 23 is in a "V" shape, when the buffer plate 23 moves in the opposite direction to reset, the resistance of the buffer plate 23 when resetting can be reduced. At the same time, the lifting block 7 moves up and down, and can also drive the lifting plate 19 at the bottom end of the connecting column 45 to move up and down in the bottom groove 18, thereby driving the piston 22 at the top end of the vertical rod 20 to move on the buffer cavity 21. The first spring 26 is moved downwardly by the buffer column 25 outside the storage tank body 4 to drive the deformation of the first spring 26, which can buffer the storage tank body 4 in the vertical direction, and transmit part of the force generated by the shaking to the buffer block 31 through the curved rod 27, and use the buffer block 31 to drive the deformation of the second spring 30, thereby buffering the storage tank body 4 in different directions. The buffering effect is better, and when the buffer block 31 moves, it drives the U-shaped rod 32 to move in the extrusion groove 34. The U-shaped rod 32 squeezes the wall of the extrusion groove 34, pushing the extrusion plate 33 to drive the clamping plate 36 to press against the ground, so that in the process of external buffering, the installation firmness of the storage tank body 4 can be increased. The sleeve rod 40 can also be used to move in the sleeve 43 to drive the deformation of the third spring 42 to play a buffering role, thereby reducing the problem of the storage tank body 4 tipping over due to violent shaking. The structure is simple, the function is practical, and the service life of the storage tank body 4 is extended.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A carbon dioxide liquefaction storage device for a ship, comprising a first chassis (1), a bottom cylinder (2) and a storage tank body (4), characterized in that: A bottom cylinder (2) is installed on the top of the first chassis (1), a mounting plate (3) is inserted into the top of the bottom cylinder (2), a first buffer structure is provided in the middle of the bottom cylinder (2), a second buffer structure is provided between the mounting plate (3) and the bottom cylinder (2), the storage tank body (4) is installed on the mounting plate (3), an anti-dumping structure is provided between the storage tank body (4) and the first chassis (1), an anti-impact structure is provided in the storage tank body (4), a third buffer structure is provided above the outer side surface of the storage tank body (4), and a fourth buffer structure is provided on the lower inner wall of the storage tank body (4); The impact-resistant structure comprises a plurality of groups of fixed cylinders (10) connected to the inner wall of the storage tank body (4), wherein an insertion rod (11) is movably inserted into each of the fixed cylinders (10), and a driving plate (12) is connected to one end of each group of two insertion rods (11), and a buffer plate (23) is installed on the side of the driving plate (12) away from the insertion rod (11), and the buffer plate (23) is in a "V" shape. A driving structure is provided in the storage tank body (4); The driving structure includes a cylinder (5) installed in the middle of the storage tank body (4), the output shaft of the cylinder (5) is inserted into the storage tank body (4) and one end is connected to the lifting rod (6), the bottom end of the lifting rod (6) is installed with a lifting block (7), the side of the lifting block (7) is connected to multiple connecting rods (8), and one end of the connecting rod (8) is installed with a driving ring (9), each of the driving plates (12) is provided with a driving groove (13), and the driving ring (9) moves through the driving groove (13). When the ship drives the storage tank body (4) to shake, the liquefied carbon dioxide in the storage tank body (4) shakes and impacts the inner wall of the storage tank body (4). At this time, the start The cylinder (5) drives the lifting block (7) and the driving ring (9) to move up and down as a whole. When the driving ring (9) moves down, the driving ring (9) squeezes the driving groove (13) wall on the driving plate (12), pushing the buffer plate (23), the driving plate (12) and the insertion rod (11) to move toward the axis of the storage tank body (4). The buffer plate (23) is used to block and buffer the shaking liquefied carbon dioxide, thereby reducing the pressure of the liquefied carbon dioxide impact on the inner wall of the storage tank body (4), reducing the deformation of the inner wall of the storage tank body (4) caused by long-term use, and when the driving ring (9) moves up, it pushes the buffer plate (23) to reset.

2. A carbon dioxide liquefaction storage device for ships according to claim 1, characterized in that: The third buffer structure comprises a buffer cylinder (14) installed above the side of the storage tank body (4), the lower inner wall of the buffer cylinder (14) is an inclined surface, and a plurality of buffer grooves (15) are opened on the inner wall of the storage tank body (4), the buffer grooves (15) are connected to the buffer cylinder (14), the buffer grooves (15) are arranged at positions corresponding to the buffer plates (23), and a blocking structure is provided at the buffer grooves (15).

3. The carbon dioxide liquefaction storage device for ships according to claim 2, characterized in that: The blocking structure comprises a plug (17) inserted into the buffer groove (15), the plug (17) is connected to a fixing rod (16), and the bottom end of the fixing rod (16) is connected to the driving plate (12).

4. A carbon dioxide liquefaction storage device for ships according to claim 3, characterized in that: The fourth buffer structure includes a plurality of buffer cavities (21) provided on the lower inner wall of the storage tank body (4) and the mounting plate (3); a bottom groove (18) is provided in the mounting plate (3) below the buffer cavity (21); a lifting plate (19) is provided at the bottom of the bottom groove (18); a plurality of vertical rods (20) are connected to the edge of the upper edge of the lifting plate (19); the top ends of the vertical rods (20) are movably inserted into the buffer cavity (21); a piston (22) is installed on the top ends of the vertical rods (20); a connecting column (45) is connected to the middle of the upper end of the lifting plate (19); the connecting column (45) is movably inserted into the storage tank body (4) and the top end is connected to the lifting block (7).

5. The carbon dioxide liquefaction storage device for ships according to claim 1, characterized in that: The first buffer structure comprises a fixed tube (24) mounted in the middle of the lower inner wall of the bottom tube (2), a buffer column (25) being movably inserted into the fixed tube (24), the top end of the buffer column (25) being connected to the mounting plate (3), a first spring (26) being sleeved on the buffer column (25), and two ends of the first spring (26) being respectively connected to the mounting plate (3) and the top end of the fixed tube (24).

6. The carbon dioxide liquefaction storage device for ships according to claim 1, characterized in that: The second buffer structure comprises a plurality of U-shaped seats (28) mounted on the edge of the lower inner wall of the bottom cylinder (2), a cross bar (29) is connected between the inner walls at both ends of the U-shaped seat (28), a buffer block (31) is movably sleeved on the cross bar (29), a second spring (30) is sleeved on the cross bar (29), two ends of the second spring (30) are respectively connected to the buffer block (31) and the U-shaped seat (28), a curved rod (27) is rotatably connected between the buffer block (31) and the bottom of the mounting plate (3), and a tightening reinforcement structure is provided below the bottom cylinder (2).

7. The carbon dioxide liquefaction storage device for ships according to claim 6, characterized in that: The abutting reinforcement structure comprises a plurality of radial grooves (35) provided below the bottom cylinder (2), each radial groove (35) being located below a corresponding U-shaped seat (28), an extrusion plate (33) being movably passed through the bottom of the U-shaped seat (28), the extrusion plate (33) being movably inserted into the radial groove (35), and a abutting plate (36) being connected to the bottom end thereof, an extrusion groove (34) being provided on the extrusion plate (33), a U-shaped rod (32) being connected to the buffer block (31), and the U-shaped rod (32) being movably passed through the extrusion groove (34).

8. The carbon dioxide liquefaction storage device for ships according to claim 1, characterized in that: The anti-dumping structure comprises an intermediate ring (37) fixedly sleeved on the storage tank body (4), a plurality of grooves (38) are provided on the side of the intermediate ring (37), a fixed shaft (39) is connected between the groove walls on both sides of each groove (38), a sleeve rod (40) is movably sleeved on the fixed shaft (39), a sleeve tube (43) is movably sleeved on the bottom end of the sleeve rod (40), a fixed plate (44) is provided at a position corresponding to each sleeve tube (43) on the side of the first chassis (1), the bottom end of the sleeve tube (43) is rotatably connected to the fixed plate (44), a fixed ring (41) is fixedly sleeved near the top end of the sleeve rod (40), and a third spring (42) is connected between the fixed ring (41) and the top end of the sleeve tube (43).

Images