A vertical support device for type B fuel tank

Abstract

The present invention relates to the field of shipbuilding technology, and in particular to a type B fuel tank vertical support device. A type B fuel tank vertical support device comprises a lower support, the lower support is fixedly connected to the bottom plate of the ship, a lower enclosure is fixedly connected to the lower support, the bottom of the type B fuel tank is fixedly connected to the upper support, the lower side of the upper support is fixedly connected to the upper enclosure, the upper enclosure is threadedly connected with symmetrically distributed fixing bolts, the upper enclosure is fixedly connected to a transition block by fixing bolts, the bottom of the transition block is located in the lower enclosure, the upper side of the lower support is provided with a grouting hole located in the lower enclosure, and the lower support is provided with a support assembly, and the support assembly is used to pre-support the type B fuel tank. The present invention pre-supports the type B fuel tank at multiple points, which can not only be applied to all types of type B fuel tanks, but also does not require a gantry crane to suspend the type B fuel tank during the curing process of the high-strength hydraulic epoxy resin, thereby improving the utilization rate of the gantry crane.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a vertical supporting device for a B-type fuel tank. Background Art

[0002] With the rapid development of modern society, environmental issues have received increasing attention. In order to cope with global environmental issues, the emission requirements of ship sulfide have become more and more stringent. Ships have gradually begun to use LNG as ship propulsion fuel. LNG is a clean and environmentally friendly fuel that contains almost no harmful substances such as sulfur and dust. However, since LNG needs to be stored at -163°C, all ships loaded with LNG must use special low-temperature resistant fuel tanks. At present, the more mature and widely used technologies are Type C fuel tanks (a spherical cylindrical pressure vessel) and Type B fuel tanks. Type B fuel tanks can fit closely with the hull cabin and make full use of the internal space of the cabin, so the application of Type B fuel tanks is increasingly favored by ship owners.

[0003] A gantry crane is required for the installation and fixation of the Type B fuel tank. The current technology requires epoxy resin to be poured and fixed. The curing of the epoxy resin takes a week. During this period, the gantry crane needs to hoist the Type B fuel tank for a long time, which greatly reduces the utilization rate of the gantry crane. In addition, due to the characteristics of LNG fuel, the cabin for installing the Type B fuel tank needs to be prepared with low-temperature steel materials, and the material cost is huge. Summary of the invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a B-type fuel tank vertical support device to solve the above problems.

[0005] The technical implementation scheme of the present invention is: a vertical support device for a type B fuel tank, comprising a lower support, the lower support is fixedly connected to the bottom plate of the ship, the lower support is fixedly connected to a lower enclosure plate, the bottom of the type B fuel tank is fixedly connected to an upper support, the lower side of the upper support is fixedly connected to an upper enclosure plate, the upper enclosure plate is threadedly connected with symmetrically distributed fixing bolts, the upper enclosure plate is fixedly connected to a transition block by fixing bolts, the bottom of the transition block is located in the lower enclosure plate, the upper side surface of the lower support is provided with a grouting hole located in the lower enclosure plate, the grouting hole is used to inject high-strength hydraulic epoxy resin into the lower enclosure plate, the high-strength hydraulic epoxy resin is cured to form support for the transition block, the lower support is provided with a support assembly, the support assembly is used to pre-support the type B fuel tank.

[0006] More preferably, the material of the transition block is laminated wood, and the transition block is used to isolate the fuel in the B-type fuel tank from damaging the hull structure.

[0007] More preferably, the lower support is provided with a transition steel plate located inside the lower enclosure, and the transition steel plate is located between the lower support and the transition block, the transition steel plate is slidingly connected to the lower enclosure, and the lower support is threadedly connected with symmetrically distributed adjusting bolts for adjusting the height of the transition steel plate inside the lower enclosure so that the transition steel plate fits the transition block.

[0008] More preferably, the length and width of the lower enclosure plate are larger than those of the transition block, and there is a gap between the length and width of the two to enhance the fixing strength of the high-strength hydraulic epoxy resin between the transition block and the lower enclosure plate.

[0009] More preferably, a paste-like epoxy resin is provided between the transition block and the lower side surface of the upper support and the inner side surface of the upper enclosure plate to fill the gap between the transition block and the upper support.

[0010] More preferably, evenly distributed transition supports are provided in the lower support and the upper support, and first reinforcing ribs are provided between the lower support and the upper support and the evenly distributed transition supports to form a stable supporting steel structure with the lower support and the upper support.

[0011] More preferably, the inner side surfaces of the lower support and the upper support and the adjacent transition supports, as well as between the adjacent transition supports, are fixedly connected with connecting reinforcement ribs, and the connecting reinforcement ribs are provided with symmetrically distributed second reinforcement ribs for increasing the supporting strength of the lower support and the upper support.

[0012] More preferably, the lower support and its upper transition support, the first reinforcement rib, the connecting reinforcement rib and the second reinforcement rib are all made of ordinary high-strength steel materials, and the upper support and its upper transition support, the first reinforcement rib, the connecting reinforcement rib and the second reinforcement rib are all made of low-temperature resistant Ni9 steel or high manganese steel materials.

[0013] More preferably, the support assembly includes a hydraulic support device, which is fixedly connected to the lower support, and a hydraulic support shaft is arranged on the hydraulic support device. The lower support is provided with a circumferentially distributed slide cylinder based on the central axis of the hydraulic support shaft, and the circumferentially distributed slide cylinder is slidably connected with a docking block, which is slidably connected to the hydraulic support shaft, a first decompression device is arranged between the docking block and the hydraulic support shaft, a second decompression device is arranged between the docking block and the circumferentially distributed slide cylinder, and the upper support is fixedly connected with a docking shell.

[0014] More preferably, the docking block is a truncated cone structure, and the docking shell is a truncated cone shell.

[0015] The present invention has the following advantages:

[0016] 1. The present invention pre-supports the B-type fuel tank at multiple points, which can not only be applied to all types of B-type fuel tanks, but also does not require a gantry crane to always suspend the B-type fuel tank, thereby improving the utilization rate of the gantry crane.

[0017] 2. The transition blocks made of laminated wood are used to isolate the temperature materials in the type B fuel tank from damaging the hull structure, so as to avoid the main hull structure of the cabin where the type B fuel tank is located being entirely made of low-temperature steel materials, which greatly increases the cost of construction materials.

[0018] 3. Liquid high-strength hydraulic epoxy resin can adapt to different casting thicknesses, greatly improving the accuracy and precision of the installation and fixation of type B fuel tanks.

[0019] 4. The impact force of the Type B fuel tank during descent is partially absorbed by the circumferentially distributed second decompression device. At the same time, the first decompression device compresses and applies a gradually increasing interaction force to the hydraulic support shaft to prevent the Type B fuel tank from sitting directly on the hydraulic support device, causing the hydraulic support device to be suddenly subjected to severe downward pressure and be damaged.

[0020] 5. Through the transition support and the first reinforcement rib thereon and the connecting reinforcement rib and the second reinforcement rib thereon, ensure that the upper support and the lower support are stable steel structures, reduce the plate grid of the lower support and the upper support, and ensure that no deformation occurs during the support process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the installation schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the distribution of the fixing bolts and the adjusting bolts of the present invention.

[0024] Figure 4 It is a schematic diagram of the enlarged three-dimensional structure of point A of the present invention.

[0025] Figure 5 It is a schematic diagram of the distributed three-dimensional structure of the transition support, the first reinforcing rib, the connecting reinforcing rib and the second reinforcing rib of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention.

[0027] The meaning of the reference numerals in the figure are as follows: 101: lower support, 102: lower enclosure, 103: transition block, 104: upper support, 105: upper enclosure, 106: fixing bolt, 107: transition steel plate, 108: adjusting bolt, 109: grouting hole, 110: bottom plate, 111: type B fuel tank, 201: transition support, 202: first reinforcement rib, 203: connecting reinforcement rib, 204: second reinforcement rib, 3: support assembly, 301: hydraulic support device, 302: hydraulic support shaft, 303: first pressure relief device, 304: slide cylinder, 305: docking block, 306: second pressure relief device, 307: docking shell. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only used in the appended drawings of the present invention. Figure 1 The present invention is not specifically limited thereto.

[0029] A type B fuel tank vertical support device, such as Figure 1-Figure 2As shown, it includes a lower support 101, which is a frustum structure and is set as a hollow structure. The lower support 101 is fixedly connected to the bottom plate 110, and the upper side of the lower support 101 is fixedly connected to the lower panel 102. The bottom of the B-type fuel tank 111 is fixedly connected to the upper support 104. The upper support 104 has the same structure as the lower support 101. The lower side of the upper support 104 is fixedly connected to the upper panel 105. The upper panel 105 is threadedly connected to four symmetrically distributed fixing bolts 106 on the long side, and the upper panel 105 is threadedly connected to two symmetrically distributed fixing bolts 106 on the wide side. The fixing bolts 106 are fixedly connected to the transition block 103 through the upper panel 105. The transition block 103 is a rectangular parallelepiped structure. The material of the transition block 103 is laminated wood. The thermal conductivity of the laminated wood is only 0.16W / (m K), density 1.35~1.4t / m³, and the vertical compressive strength can reach 260Mpa. It can be seen that the thermal conductivity of laminated wood is very poor, which can isolate the damage of the fuel in the B-type fuel tank 111 to the hull structure, and has sufficient hardness and strength to support the B-type fuel tank 111. Paste epoxy resin is arranged between the lower side of the transition block 103 and the upper support 104 and the inner side of the upper coaming 105. The paste epoxy resin has a retractable property and fills the gap between the transition block 103 and the upper support 104 to avoid uneven force on the transition block 103 and damage to the transition block 103. The length and width of the lower coaming 102 are larger than those of the transition block 103, and there is a gap between the length and width of the two, which is used to strengthen the high strength The fixing strength of the transition block 103 and the lower enclosure 102 is enhanced by the hydraulic epoxy resin. After the docking is completed, the bottom of the transition block 103 is located in the lower enclosure 102. The upper side of the lower support 101 is provided with a grouting hole 109 located in the lower enclosure 102. The grouting hole 109 is used to inject high-strength hydraulic epoxy resin into the lower enclosure 102. The high-strength hydraulic epoxy resin is cured to support the transition block 103. The lower support 101 is provided with a support assembly 3. The support assembly 3 is used to pre-support the type B fuel tank 111. By pre-supporting the type B fuel tank 111 with multiple devices, not only can all types of type B fuel tanks 111 be applied, but also there is no need for a gantry crane to suspend the type B fuel tank 111 for fixing, thereby improving the utilization rate of the gantry crane.

[0030] like Figure 3 and Figure 4As shown, the lower support 101 is provided with a transition steel plate 107 located in the lower enclosure 102. The transition steel plate 107 is a rectangular plate. The transition steel plate 107, the lower enclosure 102 and the upper side of the lower support 101 form a casting cavity for high-strength hydraulic epoxy resin, and the transition steel plate 107 is located between the lower support 101 and the transition block 103. The transition steel plate 107 is slidingly connected to the lower enclosure 102. The lower support 101 is threadedly connected with four symmetrically distributed adjusting bolts 108 for adjusting the height of the transition steel plate 107 in the lower enclosure 102 so that the transition steel plate 107 fits the transition block 103, thereby forming a casting cavity for casting the high-strength hydraulic epoxy resin, which is convenient for casting and curing of the high-strength hydraulic epoxy resin.

[0031] like Figure 5 As shown, three evenly distributed transition supports 201 are arranged in the lower support 101 and the upper support 104, and the transition supports 201 are of a frustum structure. Symmetrically distributed first reinforcing ribs 202 are arranged between the lower support 101 and the upper support 104 and the three evenly distributed transition supports 201. The first reinforcing ribs 202 are right-angled triangle plates, and the inclined surfaces of the right-angled triangle plates fit with the inclined surfaces of the transition supports 201, so as to make the lower support 101 and the upper support 104 form a stable supporting steel structure, increase the supporting strength of the lower support 101 and the upper support 104, and the inner side surfaces of the lower support 101 and the upper support 104 and the adjacent transition supports 201 and between two adjacent transition supports 201 are fixedly connected with connecting reinforcing ribs 203, and the connecting reinforcing ribs 203 are trapezoidal blocks, and the connecting reinforcing ribs 203 are symmetrically arranged. The second reinforcing rib 204 is distributed and has a right-angled triangle structure. The right-angled slope of the second reinforcing rib 204 fits with the side of the connecting reinforcing rib 203, which is used to increase the supporting strength of the lower support 101 and the upper support 104. The lower support 101 and its upper transition support 201, the first reinforcing rib 202, the connecting reinforcing rib 203 and the second reinforcing rib 204 are all made of ordinary high-strength steel materials to reduce material costs. The upper support 104 and its upper transition support 201, the first reinforcing rib 202, the connecting reinforcing rib 203 and the second reinforcing rib 204 are all made of low-temperature resistant Ni9 steel or high-manganese steel materials to enhance the low-temperature strength of the upper support 104 and the parts thereon, to avoid damage to the upper support 104 and the parts thereon due to the excessively low fuel temperature in the B-type fuel tank 111, thereby reducing the supporting strength.

[0032] like Figure 6As shown, the support assembly 3 includes a hydraulic support device 301, which is fixedly connected to the lower support 101. The hydraulic support device 301 is provided with a hydraulic support shaft 302, and a chuck is provided at the top of the hydraulic support shaft 302. The lower support 101 is provided with three slide cylinders 304 distributed circumferentially based on the central axis of the hydraulic support shaft 302. The three slide cylinders 304 distributed circumferentially are slidably connected with a docking block 305. The upper part of the docking block 305 is a truncated cone structure, which is convenient for the hanging installation and docking of the B-type fuel tank 111. The lower part of the docking block 305 is set as a cylindrical hollow structure. The hydraulic support shaft 302 slides in the hollow structure of the docking block 305. When docking is not performed, the top chuck of the hydraulic support shaft 302 contacts the lower side of the hollow structure of the docking block 305. At this time, the height of the docking block 305 is greater than the height of the docking block 305 after docking, a first decompression device 303 is arranged between the docking block 305 and the hydraulic support shaft 302, and a second decompression device 306 is arranged between the docking block 305 and the circumferentially distributed slide cylinder 304, and the upper support 104 is fixedly connected with a docking shell 307, and the docking shell 307 is a truncated cone shell, which is used for accelerated docking of the docking block 305 and the docking shell 307. The circumferentially distributed second decompression device 306 is compressed to absorb part of the impact force of the type B fuel tank 111 when it descends. At the same time, the first decompression device 303 is compressed to apply an extrusion force to the hydraulic support shaft 302 to prevent the type B fuel tank 111 from sitting directly on the hydraulic support device 301, causing the hydraulic support device 301 to be suddenly subjected to severe downward pressure and damaged.

[0033] When it is necessary to install support for the B-type fuel tank 111, the staff prepares the same number of lower supports 101 and upper supports 104 in advance, and installs the corresponding parts on them in place. At this time, the staff fixes the lower support 101 to the bottom plate 110, and fixes the upper support 104 to the bottom of the B-type fuel tank 111, and then applies the paste epoxy resin to the lower side of the upper support 104 located in the upper coaming 105, and at the same time applies the paste epoxy resin to the inner side of the upper coaming 105, and then The transition block 103 is embedded in the upper enclosure 105, and it is ensured that the transition block 103 is completely fitted with the lower side of the upper support 104. At the two long sides of the transition block 103, the upper enclosure 105 fixes the transition block 103 by two symmetrically distributed fixing bolts 106. At the middle of the two short sides of the transition block 103, the upper enclosure 105 fixes the transition block 103 by a fixing bolt 106 to prevent the transition block 103 from being separated from the upper support 104 during the transportation of the Type B fuel tank 111.

[0034] After the transition block 103 is fixed, the staff measures the flatness of the lower support 101 and the corresponding upper support 104 on which the transition block 103 is already installed, and then derives the high-strength hydraulic epoxy resin casting thickness based on the obtained flatness data, and then opens the hydraulic support device 301 on the lower support 101 accordingly, and the hydraulic support device 301 drives the hydraulic support shaft 302 to rise to the support height (this height is the final fixed position of the B-type fuel tank 111), and then the staff uses the gantry crane to hang the B-type fuel tank 111 to the ship installation position. During docking, the gantry crane drives the B-type fuel tank 111 to move upward. The docking shell 307 on the lower side of the upper support 104 at the bottom of 11 moves synchronously, and the docking shell 307 moves and contacts with the docking block 305. Since the docking portion of the docking block 305 is truncated cone-shaped and the docking shell 307 is a truncated cone-shaped shell, the installation and docking speed of the B-type fuel tank 111 is improved, and the accuracy of the installation and rotation is increased. When the docking shell 307 moves and contacts with the docking block 305, the gantry crane drives the B-type fuel tank 111 to continue to move downward. At this time, the three slide cylinders 304 distributed along the circumferential direction of the docking block 305 slide synchronously, and at the same time, the three second decompression devices 306 are compressed to absorb part of the B-type fuel tank 111. When the docking block 305 slides along the circumferentially distributed slide cylinder 304, the docking block 305 slides along the hydraulic support shaft 302, and the first decompression device 303 is synchronously compressed. The first decompression device 303 absorbs part of the impact force of the B-type fuel tank 111 when it descends. At the same time, the first decompression device 303 is compressed to generate an interaction force at the upper and lower ends. At this time, the first decompression device 303 applies an interaction force to the hydraulic support shaft 302. As the B-type fuel tank 111 is installed and docked, the force on the hydraulic support shaft 302 gradually increases until the B-type fuel tank 111 reaches the hydraulic support device. The support height of the B-type fuel tank 111 is set to 301. At this time, the weight of the B-type fuel tank 111 is completely supported by the hydraulic support device 301. At the same time, the bottom of the transition block 103 is located in the lower enclosure 102 of the lower support 101, and does not touch the upper side of the lower support 101. The three circumferentially distributed second pressure reducing devices 306 absorb part of the impact force, and then the first pressure reducing device 303 gradually applies the downward pressure of the B-type fuel tank 111 to the hydraulic support device 301 when it is docked, so as to prevent the B-type fuel tank 111 from sitting directly on the hydraulic support device 301, causing the hydraulic support device 301 to be suddenly subjected to severe downward pressure and damaged.

[0035] When the B-type fuel tank 111 is completely seated on the hydraulic support shaft 302 of the hydraulic support device 301, the staff controls the gantry crane to withdraw, and then the staff screws the four symmetrically distributed adjusting bolts 108 at the bottom, and the four adjusting bolts 108 rotate and move upward along the lower support 101, and the four adjusting screws drive the transition steel plate 107 to slide along the lower enclosure 102 until the transition steel plate 107 is completely fitted with the lower side of the transition block 103, so that a casting cavity is formed between the transition steel plate 107, the lower enclosure 102 and the lower support 101, and then the staff injects high-strength hydraulic epoxy resin into the casting cavity formed around the transition steel plate 107, the lower enclosure 102 and the lower support 101 through the grouting hole 109 until the high-strength hydraulic epoxy resin is slid along the transition steel plate 10 7 and the lower coaming 102. Since a complete B-type fuel tank 111 requires multiple B-type fuel tank 111 vertical support devices, and the welding shrinkage, the flatness of the bottom of the B-type fuel tank 111, and the flatness of the bottom plate 110 are very difficult to control, the support height of the hydraulic support device 301 in each B-type fuel tank 111 vertical support device is also different. The high-strength epoxy resin is poured into the coaming in a liquid form during the pouring process, so the liquid high-strength hydraulic epoxy resin can be poured according to the height of each B-type fuel tank 111 vertical support device. The thickness of the pouring is determined, which greatly improves the accuracy and precision of the installation and fixation of the B-type fuel tank 111. After the liquid high-strength hydraulic epoxy resin is cured, the support assembly 3 is removed.

[0036] When the support assembly 3 is removed, the type B fuel tank 111 is completely located on the support system formed by the upper support 104, the transition block 103, the cured high-strength hydraulic epoxy resin and the lower support 101. At this time, the three transition supports 201 evenly distributed in the upper support 104 and the lower support 101 and the first reinforcing ribs 202 thereon ensure that the upper support 104 and the lower support 101 are stable steel structures, ensuring that no deformation occurs during the support process. At the same time, the connecting reinforcing ribs 203 and the second reinforcing ribs symmetrically distributed thereon are connected. Strengthen the ribs 204, reduce the plate grids of the lower support 101 and the upper support 104, further increase the supporting strength of the lower support 101 and the upper support 104, and ensure the stability of the steel structure of the lower support 101 and the upper support 104. At this time, the installation of the type B fuel tank 111 is completed, and the type B fuel tank 111 is temporarily supported by the hydraulic support device 301 until the high-strength hydraulic epoxy resin is cured. During the curing process of the high-strength hydraulic epoxy resin, there is no need for the gantry crane to continuously suspend the type B fuel tank 111, thereby improving the utilization rate of the gantry crane.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A vertical support device for a type B fuel tank, characterized in that: The invention comprises a lower support (101), the lower support (101) is fixedly connected to the bottom plate (110), a lower coaming (102) is fixedly connected to the lower support (101), an upper support (104) is fixedly connected to the bottom of the B-type fuel tank (111), an upper coaming (105) is fixedly connected to the lower side of the upper support (104), the upper coaming (105) is threadedly connected to symmetrically distributed fixing bolts (106), and the upper coaming (105) is fixedly connected to a transition block via the fixing bolts (106). (103), the bottom of the transition block (103) is located in the lower enclosure (102), the upper side of the lower support (101) is provided with a grouting hole (109) located in the lower enclosure (102), the grouting hole (109) is used to inject high-strength hydraulic epoxy resin into the lower enclosure (102), the high-strength hydraulic epoxy resin is cured to form support for the transition block (103), the lower support (101) is provided with a support assembly (3), the support assembly (3) is used to pre-support the B-type fuel tank (111); The lower support (101) is provided with a transition steel plate (107) located in the lower enclosure (102), and the transition steel plate (107) is located between the lower support (101) and the transition block (103), the transition steel plate (107) is slidably connected to the lower enclosure (102), and the lower support (101) is threadedly connected with symmetrically distributed adjustment bolts (108) for adjusting the height of the transition steel plate (107) in the lower enclosure (102) so that the transition steel plate (107) fits the transition block (103); The support assembly (3) comprises a hydraulic support device (301), the hydraulic support device (301) is fixedly connected to the lower support (101), a hydraulic support shaft (302) is arranged on the hydraulic support device (301), a chuck is arranged at the top of the hydraulic support shaft (302), the lower support (101) is provided with a circumferentially distributed slide cylinder (304) based on the central axis of the hydraulic support shaft (302), the circumferentially distributed slide cylinder (304) is slidably connected to a docking block (305), the lower part of the docking block (305) is arranged as a cylindrical hollow structure, the hydraulic support shaft (302) is connected to the docking block (305) Sliding in the hollow structure, when not docking, the top chuck of the hydraulic support shaft (302) contacts the lower side of the hollow structure of the docking block (305), at this time, the height of the docking block (305) is greater than the height of the docking block (305) after docking, the docking block (305) and the hydraulic support shaft (302) are slidably connected, a first decompression device (303) is provided between the docking block (305) and the hydraulic support shaft (302), a second decompression device (306) is provided between the docking block (305) and the circumferentially distributed slide cylinder (304), and the upper support (104) is fixedly connected to a docking shell (307); The docking block (305) is a truncated cone structure, and the docking shell (307) is a truncated cone shell; The lower support (101) and the upper support (104) are both provided with uniformly distributed transition supports (201), and first reinforcing ribs (202) are both provided between the lower support (101) and the upper support (104) and the uniformly distributed transition supports (201), so as to enable the lower support (101) and the upper support (104) to form a stable supporting steel structure; connecting reinforcing ribs (203) are fixedly connected between the inner side surfaces of the lower support (101) and the upper support (104) and the adjacent transition supports (201), and between the adjacent transition supports (201), and the connecting reinforcing ribs (203) are both provided with symmetrically distributed second reinforcing ribs (204), so as to increase the supporting strength of the lower support (101) and the upper support (104); When the docking shell (307) moves and contacts the docking block (305), the gantry crane drives the B-type fuel tank (111) to continue to move downward. At this time, the docking block (305) slides synchronously along the three slide cylinders (304) distributed in the circumferential direction, and the three second decompression devices (306) are compressed to absorb part of the impact force of the B-type fuel tank (111) when it descends. When the docking block (305) slides along the slide cylinders (304) distributed in the circumferential direction, the docking block (305) slides along the hydraulic support shaft (302) to synchronously compress the third second decompression device (306). The first decompression device (303) absorbs part of the impact force of the B-type fuel tank (111) when it descends. At the same time, the first decompression device (303) is compressed to generate interaction forces at the upper and lower ends. At this time, the first decompression device (303) exerts interaction forces on the hydraulic support shaft (302). As the B-type fuel tank (111) is installed and docked, the force on the hydraulic support shaft (302) gradually increases until the B-type fuel tank (111) reaches the hydraulic support device (301). The support height is adjusted, and the weight of the type B fuel tank (111) is completely supported by the hydraulic support device (301). When the type B fuel tank (111) is completely seated on the hydraulic support shaft (302) of the hydraulic support device (301), the staff controls the gantry crane to withdraw, and then the staff turns the four symmetrically distributed adjustment bolts (108) at the bottom, and the four adjustment bolts (108) rotate and move upward along the lower support (101), and the four adjustment bolts drive the transition steel plate (107) to slide along the lower enclosure plate (102). The transition steel plate (107) is moved until the lower side of the transition block (103) is completely attached to the transition steel plate (107), so that a casting cavity is formed between the transition steel plate (107), the lower enclosure plate (102) and the lower support (101). Then, a worker injects a high-strength hydraulic epoxy resin into the casting cavity formed around the transition steel plate (107), the lower enclosure plate (102) and the lower support (101) through the grouting hole (109) until the high-strength hydraulic epoxy resin overflows between the transition steel plate (107) and the lower enclosure plate (102).

2. A type B fuel tank vertical support device according to claim 1, characterized in that: The material of the transition block (103) is laminated wood, and the transition block (103) is used to isolate the fuel in the B-type fuel tank (111) from damaging the hull structure.

3. A type B fuel tank vertical support device according to claim 1, characterized in that: The length and width of the lower enclosure plate (102) are larger than those of the transition block (103), and there is a gap between the length and width of the lower enclosure plate (102) to enhance the fixing strength of the high-strength hydraulic epoxy resin between the transition block (103) and the lower enclosure plate (102).

4. A type B fuel tank vertical support device according to claim 1, characterized in that: Paste-like epoxy resin is provided between the transition block (103) and the lower side surface of the upper support (104) and the inner side surface of the upper enclosure plate (105) to fill the gap between the transition block (103) and the upper support (104).

5. A type B fuel tank vertical support device according to claim 1, characterized in that: The lower support (101) and its upper transition support (201), the first reinforcing rib (202), the connecting reinforcing rib (203) and the second reinforcing rib (204) are all made of ordinary high-strength steel materials, and the upper support (104) and its upper transition support (201), the first reinforcing rib (202), the connecting reinforcing rib (203) and the second reinforcing rib (204) are all made of low-temperature resistant Ni9 steel or high-manganese steel materials.

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