Installation method of floating-stopping support insulating layer of linear contraction area of B-type liquid cargo tank

Abstract

According to the installation method for the insulation layer of the floating-stopping support of the B-type liquid cargo tank of the ship, firstly, the floating-stopping support is installed on the side, opposite to a ship body of the ship, of a linear contraction area of the B-type liquid cargo tank; a plurality of bolts are arranged on the side, opposite to the ship body, of the B-type liquid cargo tank, a liquid cargo tank sole timber is arranged between each bolt and the B-type liquid cargo tank, and a supporting cushion block is arranged at the end, opposite to the ship body, of each liquid cargo tank sole timber. And then a heat insulation plate is arranged on the outer side of the bolt, and a leakage channel is formed between the heat insulation plate and the B-type liquid cargo tank. Then, a mold cavity is formed in the anti-floating support, the mold cavity is located on the surface of the heat preservation plate, and a pouring opening is formed in the mold cavity. And then a foaming material is poured into the mold cavity through the pouring opening. And then the mold cavity is removed after the foaming material is cured. And finally, arranging a protective layer on the outer surface of the foaming material. The non-floating support in the linear contraction area can meet the insulation requirement and the requirement for a leakage channel.

Description

Technical Field

[0001] The present invention relates to the technical field of ship design, and in particular, to an installation method for an insulating layer of a buoyancy stop support in a linear contraction area of a Type B liquid cargo tank. Background Art

[0002] Liquefied gas carriers are special ships used to transport cryogenic liquid cargoes such as liquefied petroleum gas and liquefied natural gas. These liquid cargoes are loaded in the liquid cargo tanks of the liquefied gas carriers. Since the temperature of the liquid cargo is low, insulation needs to be installed on the outer surface of the liquid cargo tank. The main purpose of the liquid cargo tank insulation is to prevent external heat from entering the interior of the liquid cargo tank, thereby reducing the evaporation rate of the liquid cargo tank.

[0003] According to the type of liquid cargo loaded, the working place, and other aspects, the liquid cargo tanks on liquefied gas carriers are divided into three types: Type A, Type B, and Type C. Among them, the Type A independent liquid cargo tank is mainly a flat structure with a complete secondary shield; the Type B independent liquid cargo tank is a flat structure or a spherical tank type with a partial secondary shield; the Type C independent liquid cargo tank is a spherical tank type without a secondary shield. According to the different structural characteristics and performance requirements of the above three types of liquid cargo tanks, there are also differences in the installation methods of their insulation. Among them, the Type A independent liquid cargo tank is connected to the hull through a support system. The temperature inside the Type A and Type C liquid cargo tanks is about -50°C. The structural part of the Type B liquid cargo tank is similar to that of the Type A liquid cargo tank, but the temperature inside the Type B liquid cargo tank is lower, about -100°C. Moreover, the Type B liquid cargo tank has a small amount of liquid leakage requirement and must be provided with a leakage channel. Therefore, an effective insulation system must be used to achieve the purpose of heat preservation while ensuring that a small amount of leaked liquid can reach the corresponding storage area through the leakage channel.

[0004] The structure of the Type B liquid cargo tank is complex, and there are many support structures connected to the liquid cargo tank, such as buoyancy stop supports. The buoyancy stop supports are uniformly arranged below the inclined plane at the top of the liquid tank in the midship position, but in some places at the head and tail, due to the linear contraction of the Type B liquid cargo tank, some of the buoyancy stop supports will be arranged on the vertical plane of the side of the Type B liquid cargo tank. In order to prevent external heat from entering the interior of the liquid cargo tank and thus reduce the evaporation rate of the liquid cargo tank, not only the insulation of the main part of the liquid cargo tank needs to be solved, but also the insulation between components such as buoyancy stop supports and the liquid cargo tank and the requirements of the Type B liquid tank for the leakage channel need to be paid attention to. The structures of these components are often complex in type and intertwined, which is not only inconvenient for installation but also has high technical requirements. Therefore, how to better install insulation on the buoyancy stop support is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned prior art, the present application provides an installation method for an insulating layer of a buoyancy stop support in a linear contraction area of a Type B liquid cargo tank, which can enable the buoyancy stop support in the linear contraction area of the Type B liquid cargo tank to meet both the insulation requirements and the requirements of the Type B liquid tank for the leakage channel.

[0006] To achieve the above and other related purposes, the present invention provides a method for installing an insulating layer of a floating prevention support in the linear contraction area of a Type B liquid cargo tank, comprising the following steps:

[0007] Install the floating prevention support on the side of the linear contraction area of the Type B liquid cargo tank opposite to the hull of the ship. The top surface of the floating prevention support is provided with an installation panel, the installation panel is connected to the Type B liquid cargo tank through a plurality of rib plates, a wooden block is arranged on the installation panel, and a wooden block groove is arranged between the installation panel and the wooden block;

[0008] Arrange a plurality of bolts on the side of the Type B liquid cargo tank opposite to the hull. A liquid cargo tank wooden block is arranged between each bolt and the Type B liquid cargo tank, and a support cushion block is arranged at one end of the liquid cargo tank wooden block opposite to the hull;

[0009] Arrange a heat preservation board outside the bolt. A leakage channel is formed between the heat preservation board and the Type B liquid cargo tank, and the width of the leakage channel is equal to the sum of the height of the liquid cargo tank wooden block and the height of the support cushion block;

[0010] Cut a groove corresponding to the shape of the rib plate at the part where the heat preservation board contacts the rib plate of the floating prevention support, so that the rib plate is embedded in the groove of the heat preservation board;

[0011] Arrange a mold cavity on the floating prevention support. The mold cavity is located on the surface of the heat preservation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A wooden block through hole matching the wooden block is arranged on the baffle top plate, so that the baffle top plate is sleeved on the wooden block and located between the hull and the wooden block groove. A pouring port is arranged on the mold cavity;

[0012] Pour foaming material into the mold cavity through the pouring port, so that the foaming material wraps the installation panel, the wooden block groove and the rib plate located in the mold cavity;

[0013] Remove the baffle top plate and the four baffle side plates after the foaming material is cured;

[0014] Arrange a protective layer on the outer surface of the foaming material.

[0015] Optionally, before arranging a plurality of bolts on the side of the Type B liquid cargo tank opposite to the hull, it includes:

[0016] Spray an anti-corrosion layer on the side of the Type B liquid cargo tank opposite to the hull.

[0017] Optionally, arranging a heat preservation board outside the bolt includes:

[0018] Arrange a filling through hole on the side of the heat preservation board adjacent to the outside of the bolt, and fill the filling through hole with an elastic material.

[0019] Optionally, the width of the leakage channel is between 15 mm and 25 mm.

[0020] Optionally, a groove corresponding to the shape of the rib plate is cut at the contact part between the heat preservation board and the anti-floating support, so that the rib plate is embedded in the groove of the heat preservation board, including:

[0021] Sealant is filled between the rib plate and the heat preservation board.

[0022] Optionally, a mold cavity is arranged on the anti-floating support. The mold cavity is located on the surface of the heat preservation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A pad wood through hole matching the pad wood is arranged on the baffle top plate, so that the baffle top plate is sleeved on the pad wood and located between the hull and the pad wood groove. A pouring port is arranged on the mold cavity, including:

[0023] A demolding sheet is laid on the inner sides of the baffle top plate and the four baffle side plates.

[0024] Optionally, a mold cavity is arranged on the anti-floating support. The mold cavity is located on the surface of the heat preservation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A pad wood through hole matching the pad wood is arranged on the baffle top plate, so that the baffle top plate is sleeved on the pad wood and located between the hull and the pad wood groove. A pouring port is arranged on the mold cavity, including:

[0025] A support member is arranged between the hull and the baffle side plates.

[0026] Optionally, the spacing distance between the baffle top plate and the pad wood groove is greater than or equal to 20 mm.

[0027] Optionally, after the foaming material is cured, the baffle top plate and the four baffle side plates are removed, and it also includes:

[0028] Sealant is filled between the heat preservation board and the cured foaming material.

[0029] Optionally, a protective layer is arranged on the outer surface of the foaming material, including:

[0030] The protective layer is an aluminum foil protective layer, and the thickness of the aluminum foil protective layer is between 0.2 mm and 0.4 mm.

[0031] Optionally, the distance between any edge of the outer surface of the foaming material and the rib plate of the anti-floating support is greater than or equal to 50 mm.

[0032] As described above, the installation method of the anti-floating support insulation layer in the linear shrinkage area of the B-type liquid cargo tank provided by the present invention at least has the following beneficial technical effects:

[0033] Installation method of the floating support insulation layer in the linear contraction area of the B-type liquid cargo tank of the present invention. First, install the floating support on the side of the linear contraction area of the B-type liquid cargo tank opposite to the hull of the ship. The top surface of the floating support is provided with an installation panel, and the installation panel is connected to the B-type liquid cargo tank through a plurality of rib plates. A wooden block is provided on the installation panel, and a wooden block groove is provided between the installation panel and the wooden block. Then, a plurality of bolts are provided on the side of the B-type liquid cargo tank opposite to the hull. A liquid cargo tank wooden block is provided between each bolt and the B-type liquid cargo tank, and a support cushion block is provided at the end of the liquid cargo tank wooden block opposite to the hull. Next, a heat preservation board is provided outside the bolts, and a leakage channel is formed between the heat preservation board and the B-type liquid cargo tank. The width of the leakage channel is equal to the sum of the height of the liquid cargo tank wooden block and the height of the support cushion block. Subsequently, a groove corresponding to the shape of the rib plate is cut at the part where the heat preservation board contacts the rib plate of the floating support, so that the rib plate is embedded in the groove of the heat preservation board. Then, a mold cavity is provided on the floating support. The mold cavity is located on the surface of the heat preservation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A wooden block through hole matching the wooden block is provided on the baffle top plate, so that the baffle top plate is sleeved on the wooden block and is located between the hull and the wooden block groove. A pouring port is provided on the mold cavity. Foaming material is poured into the mold cavity through the pouring port, so that the foaming material wraps the installation panel, the wooden block groove and the rib plate located in the mold cavity. After the foaming material is cured, the baffle top plate and the four baffle side plates are removed. Finally, a protective layer is provided on the outer surface of the foaming material. The installation method of the floating support insulation layer in the linear contraction area of the B-type liquid cargo tank of the present application can enable the floating support in the linear contraction area of the B-type liquid cargo tank to meet both the insulation requirements and the requirements for the leakage channel of the B-type liquid tank between the floating support and the B-type liquid cargo tank. Brief Description of the Drawings

[0034] Figure 1 It shows a schematic flow chart of the installation method of the floating support insulation layer in the linear contraction area of the B-type liquid cargo tank provided by the embodiment of the present invention.

[0035] Figure 2 It shows a schematic diagram of the installation position of the floating support provided by the embodiment of the present invention.

[0036] Figure 3 It shows a schematic structural diagram of the floating support without installing the insulation layer provided by the embodiment of the present invention.

[0037] Figure 4 It shows a schematic structural diagram of the floating support when installing the insulation layer provided by the embodiment of the present invention.

[0038] Figure 5 It shows provided by the embodiment of the present invention Figure 4 Cross-sectional view from the B-B perspective.

[0039] Figure 6 It shows provided by the embodiment of the present invention Figure 4Partial enlarged view at A in the figure.

[0040] Figure 7 It is shown as a schematic structural view after the installation of the insulation layer of the anti-floating support provided by the embodiment of the present invention.

[0041] Reference numerals

[0042] 1. B-type liquid cargo tank; 012. Linear contraction area; 111. Liquid cargo tank wooden block; 112. Support cushion block; 113. Bolt; 2. Hull; 211. Support member; 3. Anti-floating support; 31. Installation panel; 32. Wooden block groove; 33. Wooden block; 34. Rib plate; 4. Thermal insulation board; 41. Filling through hole; 411. Elastic material; 42. Groove; 5. Mold cavity; 50. Demolding sheet; 51. Baffle side plate; 52. Baffle top plate; 521. Wooden block through hole; 53. Pouring port; 6. Foaming material; 7. Protective layer; 8. Sealant; 9. Leakage channel; 10. Rubber strip. Specific implementation manners

[0043] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0044] It should be noted that the drawings provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Although only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape, and size of the components in actual implementation, the form, quantity, positional relationship, and ratio of each component in actual implementation can be arbitrarily changed on the premise of implementing the technical solution of the present invention, and the component layout form may also be more complex.

[0045] This embodiment provides an installation method for the insulation layer of the anti-floating support in the linear contraction area of the B-type liquid cargo tank, including the following steps:

[0046] S100: Install the anti-floating support on the side of the linear contraction area of the B-type liquid cargo tank opposite to the hull of the ship. The top surface of the anti-floating support is provided with an installation panel, the installation panel is connected to the B-type liquid cargo tank through a plurality of rib plates, a wooden block is provided on the installation panel, and a wooden block groove is provided between the installation panel and the wooden block;

[0047] Refer to Figures 1 to 6, first, fabricate the Type B liquid cargo tank 1. After the fabrication of the Type B liquid cargo tank 1 is completed, install the anti-floating support 3 on the side of the linear contraction area 012 of the Type B liquid cargo tank 1 opposite to the hull 2 of the ship. The top surface of the anti-floating support 3 is provided with an installation panel 31. The installation panel 31 is connected to the Type B liquid cargo tank 1 through a plurality of rib plates 34. A packing block 33 is arranged on the installation panel 31, and a packing block groove 32 is arranged between the installation panel 31 and the packing block 33. Next, grind and remove rust from the outer surface of the Type B liquid cargo tank 1 and the anti-floating support 3 to remove surface rust and impurities. Spray an anti-rust primer on the outer surface of the polished Type B liquid cargo tank 1. After the anti-rust primer cures, clean the outer surface of the Type B liquid cargo tank 1 to remove water, oil, dust, and other contaminants to further improve the surface quality and prepare for the spraying of the anti-corrosion layer. Spray the anti-corrosion layer on the outer surface of the Type B liquid cargo tank 1. The Type B liquid cargo tank 1 can effectively prevent the outer surface of the Type B liquid cargo tank 1 from being corroded and extend the service life of the Type B liquid cargo tank 1.

[0048] S200: Set a plurality of bolts on the side of the Type B liquid cargo tank opposite to the hull. A liquid cargo tank packing block is arranged between each bolt and the Type B liquid cargo tank. A support cushion block is arranged at one end of the liquid cargo tank packing block opposite to the hull;

[0049] Specifically, referring to Figures 2 to 6 , set a plurality of bolts 113 on the surface of the anti-corrosion layer on the side of the Type B liquid cargo tank 1 opposite to the hull 2. A liquid cargo tank packing block 111 is arranged between each bolt 113 and the anti-corrosion layer of the Type B liquid cargo tank 1. The liquid cargo tank packing block 111 not only plays a supporting role but also can buffer external impact forces to a certain extent. A support cushion block 112 is arranged at one end of the liquid cargo tank packing block 111 opposite to the hull 2. The height of the support cushion block 112 can be adjusted to eliminate local errors caused by deformation of the surface of the Type B liquid cargo tank 1.

[0050] S300: Set a heat preservation board outside the bolt. A leakage channel is formed between the heat preservation board and the Type B liquid cargo tank. The width of the leakage channel is equal to the sum of the height of the liquid cargo tank packing block and the height of the support cushion block;

[0051] Specifically, referring to Figures 2 to 6, a thermal insulation board 4 is arranged outside the bolt 113. The thickness of the thermal insulation board 4 is between 50 mm and 70 mm. Further, the thickness of the thermal insulation board 4 is between 55 mm and 65 mm. In an alternative embodiment of this embodiment, the thickness of the thermal insulation board 4 is 60 mm. A leakage channel 9 is formed between the thermal insulation board 4 and the B-type liquid cargo tank 1. Since a liquid cargo tank wooden block 111 and a support cushion block 112 are arranged between the bolt 113 and the B-type liquid cargo tank 1, the width of the leakage channel 9 is equal to the sum of the height of the liquid cargo tank wooden block 111 and the height of the support cushion block 112. In this embodiment, the width of the leakage channel 9 is between 15 mm and 25 mm. Further, the width of the leakage channel 9 is between 18 mm and 22 mm. In an alternative embodiment of this embodiment, the width of the leakage channel 9 is 20 mm. The existence of the leakage channel 9 can ensure that when there is a small amount of liquid leakage in the B-type liquid cargo tank 1, the leaked liquid can smoothly pass through the leakage channel 9 to reach a designated leakage container (not shown in the figure), avoiding damage to the hull structure. A filling through hole 41 is arranged on one side of the thermal insulation board 5 adjacent to the outside of the bolt 113, and an elastic material 411 is filled in the filling through hole 41. When the temperature changes, the elastic material 411 in the filling through hole 41 will undergo a certain deformation, offsetting a part of the internal stress suffered by the thermal insulation board 4 due to thermal expansion and contraction. Preferably, the elastic material 411 is glass wool. The part of the B-type liquid cargo tank 1 opposite to the thermal insulation board 4 where the bolt 113 is not arranged is filled with a rubber strip 10. The use of the rubber strip 10 can ensure the smoothness of the leakage channel 9 and ensure the safety of the structure of the B-type liquid cargo tank 1 in case of slight leakage. To ensure the smoothness of the leakage channel 9, the height of the rubber strip 10 is the same as the width of the leakage channel 9, which not only ensures the connection tightness but also does not hinder the normal operation of the leakage channel 9, thereby ensuring the safe operation of the B-type liquid cargo tank 1 while meeting the insulation and anti-corrosion requirements.

[0052] S400: Cut a groove corresponding to the shape of the rib plate at the part where the thermal insulation board contacts the rib plate of the anti-floating support, so that the rib plate is embedded in the groove of the thermal insulation board;

[0053] Specifically, refer to Figures 2 to 6, to match the rib plate 34 on the anti-floating support 3, a groove 42 corresponding to the shape of the rib plate 34 is cut at the part where the heat preservation plate 4 contacts the rib plate 34 of the anti-floating support 3, so that the rib plate 34 is embedded in the groove 42 of the heat preservation plate 4. Specifically, first, according to the specific shape and size of the rib plate 34 on the anti-floating support 3, the heat preservation plate 4 is accurately measured and marked. Then, a professional cutting tool is used to cut a groove 42 corresponding to the shape of the rib plate 34 at the part where the heat preservation plate 4 contacts the rib plate 34. During the cutting process, the dimensional accuracy of the groove should be ensured so that the rib plate 34 can be smoothly embedded in the groove 42 and there is no obvious gap between the two. To further improve the sealing performance, a sealant 8 is filled between the rib plate 34 and the heat preservation plate 4. When filling the sealant 8, it is necessary to ensure that the sealant is evenly distributed on the contact surface between the rib plate 34 and the heat preservation plate 4, and the filling amount should be appropriate, which should not only ensure the sealing effect but also not overflow too much. After the rib plate 34 is embedded in the groove 42 of the heat preservation plate 4, the joint at the intersection of the two is sealed. The joint is completely filled and smoothed with the sealant 8 to ensure that there is no gap at the joint, thus avoiding leakage accidents caused by the gap at the joint. And the joint at the intersection of the rib plate 34 and the heat preservation plate 4 is also sealed with the sealant 8.

[0054] S500: A mold cavity is provided on the anti-floating support. The mold cavity is located on the surface of the heat preservation plate. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A pad wood through hole matching the pad wood is provided on the baffle top plate, so that the baffle top plate is sleeved on the pad wood and located between the hull and the pad wood groove. A pouring port is provided on the mold cavity;

[0055] Refer to Figures 2 to 6 , a mold cavity 5 is provided on the anti-floating support 3. The mold cavity 5 is located on the surface of the heat preservation plate 4. The mold cavity 5 includes four baffle side plates 51 and a baffle top plate 52 connecting the four baffle side plates 51. A support member 211 is provided between the baffle side plate 51 and the outer wall 21 of the first hull. The support member 211 can be an oil cylinder or a jack, etc. A pad wood through hole 521 matching the pad wood 33 is provided on the baffle top plate 52, so that the baffle top plate 52 is sleeved on the pad wood 33 and located between the hull 2 and the pad wood groove 32. The spacing distance between the baffle top plate 52 and the pad wood groove 32 is greater than or equal to 20 mm. In an alternative embodiment of this embodiment, the spacing distance between the baffle top plate 52 and the pad wood groove 32 is 20 mm. And a sealant 8 is filled between the pad wood through hole 521 of the baffle top plate 52 and the pad wood 33. A pouring port 53 is provided on the mold cavity 5. When installing the four baffle side plates 51 and the baffle top plate 52, the baffle top plate 52 does not contact the pad wood groove 32. A foaming material 6 is filled between the pad wood 33 and the pad wood groove 32 to prevent the pad wood groove 32 from being exposed outside and causing heat conduction.

[0056] S600: Pour the foaming material into the mold cavity through the pouring port, so that the foaming material wraps the mounting panel, the wooden block groove and the rib plate located in the mold cavity;

[0057] Refer to Figures 2 to 6 , for the convenience of subsequent demolding, before pouring the foaming material 6 into the mold cavity 5 through the pouring port 53, a demolding film 50 is laid on the inner surfaces of the baffle top plate 52 and the four baffle side plates 51. Then, the foaming material 6 is poured into the mold cavity 5 through the pouring port 53, so that the foaming material 6 wraps the mounting panel 31, the wooden block groove 32 and the rib plate 34 located in the mold cavity 5. The distance between the outer surface of the foaming material 6 and any edge of the rib plate 34 of the anti-floating support 3 is greater than or equal to 50 mm.

[0058] S700: Remove the baffle top plate and the four side plates after the foaming material is cured;

[0059] Refer to Figure 7 , to further ensure the insulation effect, a sealant 8 is filled between the insulation board 4 and the cured foaming material 6, and at the same time, the sealant 8 is filled at the corner joints of the foaming material 6 and the wooden block 33. Preferably, the support member 211 is removed while removing the baffle top plate 52 and the baffle side plates 51.

[0060] S800: Provide a protective layer on the outer surface of the foaming material.

[0061] Refer to Figure 7 , after removing the baffle top plate 52 and the four baffle side plates 51, a protective layer 7 is provided on the surface of the foaming material 6. Preferably, the protective layer 7 is an aluminum foil protective layer, and the thickness of the aluminum foil protective layer is between 0.2 mm and 0.4 mm. The aluminum foil protective layer has good airtight and watertight functions and can play a good protective role for the insulating layer.

[0062] The above embodiments are only illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A method for installing an insulating layer of a buoyancy restraint support in a linear contraction area of a Type B liquid cargo tank, characterized in that It includes the following steps: Install the anti-floating support on the side opposite to the hull of the ship in the linear contraction area of the Type B liquid cargo tank. An installation panel is provided on the top surface of the anti-floating support. The installation panel is connected to the Type B liquid cargo tank through a plurality of rib plates. A wooden block is provided on the installation panel, and a wooden block groove is provided between the installation panel and the wooden block; Set a plurality of bolts on the side of the Type B liquid cargo tank opposite to the hull. A liquid cargo tank wooden block is provided between each bolt and the Type B liquid cargo tank, and a support cushion block is provided at the end of the liquid cargo tank wooden block opposite to the hull; Set a heat preservation board outside the bolt. A leakage channel is formed between the heat preservation board and the Type B liquid cargo tank. The width of the leakage channel is equal to the sum of the height of the liquid cargo tank wooden block and the height of the support cushion block; Cut a groove corresponding to the shape of the rib plate at the part where the heat preservation board contacts the rib plate of the anti-floating support, so that the rib plate is embedded in the groove of the heat preservation board; Set a mold cavity on the anti-floating support. The mold cavity is located on the surface of the heat preservation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A wooden block through hole matching the wooden block is provided on the baffle top plate, so that the baffle top plate is sleeved on the wooden block and located between the hull and the wooden block groove. A pouring port is provided on the mold cavity; Pour foaming material into the mold cavity through the pouring port, so that the foaming material wraps the installation panel, the wooden block groove and the rib plate located in the mold cavity; Remove the baffle top plate and the four baffle side plates after the foaming material is cured; Set a protective layer on the outer surface of the foaming material.

2. The installation method of the floating prevention support insulation layer in the linear contraction area of the B-type liquid cargo tank according to claim 1, characterized in that Before setting a plurality of bolts on the side of the Type B liquid cargo tank opposite to the hull, it includes: Spray an anti-corrosion layer on the side of the Type B liquid cargo tank opposite to the hull.

3. The installation method of the insulation layer of the B-type liquid cargo tank anti-floating support according to claim 1, characterized in that, Setting a heat preservation board outside the bolt includes: Set a filling through hole on the side of the heat preservation board adjacent to the outside of the bolt, and the filling through hole is filled with an elastic material.

4. The installation method of the floating prevention support insulation layer in the linear contraction area of the type B liquid cargo tank according to claim 1, characterized in that The width of the leakage channel is between 15mm and 25mm.

5. The installation method of the floating prevention support insulation layer in the linear contraction area of the B-type liquid cargo tank according to claim 1, characterized in that Cut a groove corresponding to the shape of the rib plate at the part where the heat preservation board contacts the anti-floating support, so that the rib plate is embedded in the groove of the heat preservation board, including: Fill a sealant between the rib plate and the heat preservation board.

6. The installation method of the floating prevention support insulation layer in the linear contraction area of the type B liquid cargo tank according to claim 1, characterized in that, Set a mold cavity on the anti-floating support. The mold cavity is located on the surface of the heat preservation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A wooden block through hole matching the wooden block is provided on the baffle top plate, so that the baffle top plate is sleeved on the wooden block and located between the hull and the wooden block groove. A pouring port is provided on the mold cavity, including: Lay a demoulding film on the inner sides of the baffle top plate and the four baffle side plates.

7. The installation method of the floating prevention support insulation layer in the linear contraction area of the B-type liquid cargo tank according to claim 1, characterized in that A mold cavity is provided on the floating prevention support, and the mold cavity is located on the surface of the insulation board. The mold cavity includes four baffle side plates and a baffle top plate connecting the four baffle side plates. A pad wood through hole matching the pad wood is provided on the baffle top plate, so that the baffle top plate is sleeved on the pad wood and located between the hull and the pad wood groove. A pouring port is provided on the mold cavity, including: A support member is provided between the hull and the baffle side plate.

8. The installation method of the floating prevention support insulation layer in the linear contraction area of the Type B liquid cargo tank according to claim 1, characterized in that, The spacing distance between the baffle top plate and the pad wood groove is greater than or equal to 20 mm.

9. The installation method of the floating prevention support insulation layer in the linear contraction area of the Type B liquid cargo tank according to claim 1, characterized in that After the foaming material is cured, the baffle top plate and the four baffle side plates are removed, and further includes: A sealant is filled between the insulation board and the cured foaming material.

10. The installation method of the floating prevention support insulation layer in the linear contraction area of the type B liquid cargo tank according to claim 1, characterized in that A protective layer is provided on the outer surface of the foaming material, including: The protective layer is an aluminum foil protective layer, and the thickness of the aluminum foil protective layer is between 0.2 mm and 0.4 mm.

11. The installation method of the floating prevention support insulating layer in the linear contraction area of the type B liquid cargo tank according to claim 1, characterized in that, The distance between the outer surface of the foaming material and any edge of the rib plate of the floating prevention support is greater than or equal to 50 mm.

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