A thermal insulation system for the anti-sway support area of ​​a liquid tank and its installation method

Abstract

The present application provides an insulation system for the anti-sway support area of ​​a liquid tank and an installation method thereof. The insulation system includes a prefabricated insulation block, a modular insulation board, a first baffle and a second baffle. The prefabricated insulation block is arranged in the gap of the reinforcement structure of the anti-sway support area; the modular insulation board is formed by splicing a plurality of prefabricated insulation boards, and the first surface laid to the outer surface of the liquid tank is provided with a protruding structure; the first baffle is arranged on the second surface, and wraps the reinforcement structure and the prefabricated insulation block, forming a first space with the reinforcement structure, the pressure block and the second surface; the second baffle wraps the pressure block in the anti-sway support area, and forms a second space with the first baffle, the pressure block, and the reinforcement structure; the first space and the second space are both filled with polyurethane foam. The insulation system optimizes the insulation system structure and construction process through the conformity design of prefabricated insulation boards, prefabricated insulation blocks and sprayed polyurethane foam, significantly improves the design and installation efficiency of the insulation system, and reduces material and construction costs.

Description

Technical Field

[0001] This invention relates to the field of ship liquid cargo tank insulation technology, specifically to an insulation system for the anti-sway support area of ​​a liquid tank and its installation method. Background Technology

[0002] Liquefied gas carriers and vessels using liquefied gas fuel must be equipped with independent Type A or Type B liquid tanks or fuel tanks that comply with IMO IGC Code requirements. As the core load-bearing structure for carrying cryogenic liquefied gases, these tanks must meet stringent requirements for liquid tightness and thermal insulation. According to the regulations, these tanks must be equipped with insulation systems to achieve a dual function: firstly, to limit external heat flow into the tank, ensuring stable temperature and pressure inside; secondly, to create a leakage guidance channel, safely guiding potentially leaking cryogenic cargo to a secondary shield, while simultaneously preventing brittle damage to the hull structure due to cryogenic exposure.

[0003] Currently, the insulation systems for independent Type B liquid tanks (such as spherical tanks and prismatic tanks) mainly employ either sprayed insulating foam or prefabricated insulating panels. However, these tanks have complex structures, especially the anti-sway support areas at the top and bottom, which are rigidly connected to the hull and subject to dynamic load transfer. This necessitates that the insulation layer in these areas simultaneously adapt to multiple challenges, including structural irregularities, mechanical vibrations, and low-temperature deformation. Existing insulation technologies struggle to achieve uniform coverage, long-term stability, and leak-proof flow guidance in these specialized areas. Stress concentration or joint failure can easily lead to a decline in insulation performance, thereby threatening the safe operation of the tank.

[0004] Furthermore, as a critical connecting component between the liquid tank and the hull, the insulation system surrounding the anti-sway support needs to balance structural support strength with cryogenic protection requirements. Existing technologies lack a systematic design for this area, resulting in insufficient compatibility between the insulation layer and the support, making it difficult to meet the stringent IMO requirements for leak control and temperature management. Therefore, there is an urgent need to develop a dedicated insulation system for the anti-sway support area of ​​independent Type B liquid tanks to solve the insulation and sealing problem under complex geometries. Summary of the Invention

[0005] In view of the defects and deficiencies of the prior art, this application provides a heat insulation system for the anti-sway support area of ​​a liquid tank and its installation method, so as to solve the problem of unsatisfactory heat insulation effect in the anti-sway support area of ​​a liquid tank in the prior art.

[0006] To achieve the above and other related objectives, in a first aspect, this application provides a thermal insulation system for an anti-sway support area of ​​a liquid tank. The anti-sway support area is disposed at the top and bottom of the liquid tank and includes a reinforcing structure and pressure-bearing blocks. The reinforcing structure has internal gaps, and the pressure-bearing blocks are disposed opposite to each other on both sides of the reinforcing structure. The thermal insulation system includes:

[0007] Prefabricated insulation blocks are installed within the gaps of the reinforcing structure;

[0008] A modular insulation panel is formed by splicing multiple prefabricated insulation panels and surrounding the reinforcing structure. The modular insulation panel includes a first surface and a second surface that are arranged opposite to each other. The first surface is laid on the outer surface of the liquid tank near the anti-sway support area and has a protruding structure. The second surface is disposed away from the outer surface of the liquid tank.

[0009] A first baffle is disposed above the second surface and wraps around the reinforcing structure and the prefabricated insulation block. A first space is formed between the first baffle, the reinforcing structure, the pressure-bearing block and the second surface, and the first space is filled with polyurethane foam.

[0010] The second baffle wraps around the pressure-bearing block and is connected to the first baffle and the reinforcing structure. A second space is formed between the first baffle, the second baffle, the pressure-bearing block, the reinforcing structure, and the polyurethane foam in the first space. The second space is filled with polyurethane foam.

[0011] In one embodiment, the first baffle includes a horizontal plate and two vertical plates, with the two vertical plates disposed opposite each other on both sides of the horizontal plate.

[0012] In one embodiment, the second baffle is a hollow frustum shape, and the second baffle is provided with an opening near the surface of the reinforcing structure.

[0013] In one embodiment, the second baffle is provided with an inspection hole; or, both the first baffle and the second baffle are provided with inspection holes.

[0014] In one embodiment, the modular insulation panel includes multiple first prefabricated insulation panels, multiple second prefabricated insulation panels, multiple third prefabricated insulation panels, and multiple fourth prefabricated insulation panels; the first prefabricated insulation panels, the second prefabricated insulation panels, and the third prefabricated insulation panels are arranged around the reinforcing structure, with the first prefabricated insulation panels and the second prefabricated insulation panels arranged adjacent to each other, and the fourth prefabricated insulation panels filling the spaces between the first prefabricated insulation panels and the third prefabricated insulation panels, as well as filling the spaces between the second prefabricated insulation panels and the third prefabricated insulation panels; the first prefabricated insulation panels, the second prefabricated insulation panels, the third prefabricated insulation panels, and the fourth prefabricated insulation panels are spliced ​​together to form a panel shape;

[0015] The first pre-insulated panel, the second pre-insulated panel, the third pre-insulated panel, and the fourth pre-insulated panel each include an inner insulation layer, a reinforcing layer, and an outer insulation layer stacked sequentially. The surface of the inner insulation layer near the liquid tank is the first surface, and the surface of the outer insulation layer away from the reinforcing layer is the second surface.

[0016] In one implementation, the surface of the inner insulation layer adjacent to the reinforcing layer has a larger area than the surface of the reinforcing layer adjacent to the inner insulation layer; the surface of the reinforcing layer adjacent to the outer insulation layer is the same as the surface of the outer insulation layer adjacent to the reinforcing layer; the area of ​​the first surface is larger than the area of ​​the second surface; and the surface of the outer insulation layer facing away from the reinforcing layer has a stepped structure.

[0017] Elastic insulation layers are provided in the gaps between adjacent inner insulation layers and in the gaps between adjacent outer insulation layers.

[0018] In one embodiment, prefabricated connecting plates are provided at the gaps between the outer insulation layers of the first prefabricated insulation board and the fourth prefabricated insulation board, the gaps between the outer insulation layers of the second prefabricated insulation board and the fourth prefabricated insulation board, and the gaps between the outer insulation layers of the third prefabricated insulation board and the fourth prefabricated insulation board.

[0019] In one embodiment, insulation patches are provided on the second surface of the first pre-insulated panel, the second surface of the second pre-insulated panel, and the second surface of the third pre-insulated panel near the edge of the reinforcing structure.

[0020] As one implementation, fixing components are provided at the gaps between the inner insulation layers corresponding to the position of the prefabricated connecting plate, and between the inner insulation layer and the reinforcing structure corresponding to the position of the insulation patch;

[0021] The fixing assembly includes a fixing member, a connecting column, a fixing stud, and a clamping bolt. The fixing member is connected to one end of the connecting column through the clamping bolt. The other end of the connecting column is threadedly connected to one end of the fixing stud. The other end of the fixing stud is connected to the fixing stud positioning point on the outer surface of the liquid tank.

[0022] The fastener includes a reinforcing plate, a flange, a cavity, and a connecting part. The cavity has a hollow cavity, and an insulating plug is disposed inside the cavity. Two flanges are disposed opposite to each other on both sides of the cavity. The reinforcing plate is disposed on the surface of the flange facing away from the cavity. At least one flange abuts against the surface of the inner insulating layer near the reinforcing layer. The connecting part is disposed at the other end of the cavity and is connected to the connecting post.

[0023] In one embodiment, the folded edge and the contact surface of the inner insulation layer have a certain angle, which is between 0° and 30°.

[0024] In one embodiment, a protective layer is provided on the second surface of the modular insulation panel, the outer surface of the first baffle, and the outer surface of the second baffle.

[0025] Secondly, this application also provides a method for installing an insulation system for the anti-sway support area of ​​a liquid tank, comprising the following steps:

[0026] Complete the production of the first prefabricated insulation panel, the second prefabricated insulation panel, the third prefabricated insulation panel, the fourth prefabricated insulation panel, the prefabricated insulation block, the prefabricated connecting plate, the first baffle, the second baffle, the fixing components and the protective layer according to the design requirements.

[0027] Complete the grid division of the outer surface of the liquid tank and the positioning of the fixing studs according to the design requirements;

[0028] After cleaning the paint from the positioning position of the fixing stud on the outer surface of the liquid tank, weld the fixing stud. The diameter of the grinding is 20mm to 30mm. The coaxiality tolerance between the actual position of the fixing stud and its positioning position is 3mm. The angle between the fixing stud and the outer surface of the liquid tank is 87° to 93°.

[0029] The prefabricated insulation block is inserted into the space of the corresponding size of the reinforcing structure in the anti-sway support area of ​​the liquid tank;

[0030] Within the defined area of ​​the fixed studs on the outer surface of the liquid tank, the first prefabricated insulation panel, the second prefabricated insulation panel and the third prefabricated insulation panel are installed and connected to the reinforcing structure by the fixing components. The fourth prefabricated insulation panel is installed between the first prefabricated insulation panel and the second prefabricated insulation panel, and is installed between the second prefabricated insulation panel and the third prefabricated insulation panel to form a modular insulation panel.

[0031] Install a prefabricated connecting plate at the gap between any two adjacent prefabricated insulation panels in the modular insulation panel.

[0032] The first baffle is fixed to the second surface of the modular insulation board, and the reinforcing structure and prefabricated insulation block of the anti-sway support area are covered. Polyurethane foam is sprayed from the open spaces on the other two sides into the first space formed by the first baffle, the reinforcing structure, the prefabricated insulation block and the second surface until it is close to the design shape.

[0033] The second baffle is fixed around the pressure block in the anti-sway support area and covers the polyurethane foam that has been sprayed in the first space.

[0034] Check the inspection holes on the first and second baffles to see if the sprayed polyurethane foam is completely filled and re-spray as needed.

[0035] A protective layer is applied to the second surface of the modular insulation panel and the outer surfaces of the first and second baffles. The thickness of the protective layer is between 0.5 mm and 1.5 mm, and the width of the overlapping part of the protective layer is not less than 25 mm.

[0036] As described above, the insulation system for the anti-sway support area of ​​the liquid tank and its installation method of this application have the following beneficial effects:

[0037] The insulation system for the anti-sway support area of ​​the liquid tank in this application optimizes the structure and construction process of the insulation system through the combined design of prefabricated insulation panels, prefabricated insulation blocks and sprayed polyurethane foam, significantly improving the design and installation efficiency of the insulation system and reducing material and construction costs. Through modular design and integration of composite insulation technology, a highly integrated insulation system is formed, which can maintain stable performance under low temperature, vibration and dynamic load conditions, ensuring the safe operation of the liquid tank and compliance with IMO regulations. Attached Figure Description

[0038] Figure 1 The diagram shows the main structural view of the liquid tank and anti-sway support area.

[0039] Figure 2 The diagram shows a three-dimensional structural representation of the liquid tank and the anti-sway support area.

[0040] Figure 3 This is a three-dimensional structural diagram of the insulation system for the anti-sway support area of ​​the liquid tank, as shown in an embodiment of the present invention.

[0041] Figure 4 The diagram shown is an exploded view of the anti-sway support area of ​​the liquid tank, the prefabricated insulation block, the first baffle and the second baffle, which are embodiments of the present invention.

[0042] Figure 5 The diagram shown is a top view of the insulation system for the anti-sway support area of ​​the liquid tank, as described in an embodiment of the present invention.

[0043] Figure 6 Display as Figure 5 A schematic diagram of the cross-sectional structure along the AA direction.

[0044] Figure 7 The diagram shows a structural schematic of the first prefabricated insulation panel in the insulation system of the anti-sway support area of ​​the liquid tank according to an embodiment of the present invention.

[0045] Figure 8 The diagram shows the structure of the second prefabricated insulation panel in the insulation system of the anti-sway support area of ​​the liquid tank according to an embodiment of the present invention.

[0046] Figure 9The diagram shows the structure of the third prefabricated insulation panel in the insulation system of the anti-sway support area of ​​the liquid tank according to an embodiment of the present invention.

[0047] Figure 10 The diagram shown is a structural schematic of the fourth prefabricated insulation panel in the insulation system of the anti-sway support area of ​​the liquid tank according to an embodiment of the present invention.

[0048] Figure 11 This diagram shows a structural schematic of the gap in the modular insulation panel of the insulation system in the anti-sway support area of ​​the liquid tank, as shown in an embodiment of the present invention.

[0049] Figure 12 The diagram shown is a structural schematic of the fastener in the fastening assembly according to an embodiment of the present invention.

[0050] Figure 13 The diagram shown is a structural schematic of the insulation patch in the insulation system of the anti-sway support area of ​​the liquid tank according to an embodiment of the present invention.

[0051] Figure 14 The diagram shows a structural schematic of a protruding structure in the insulation system of the anti-sway support area of ​​the liquid tank, as shown in an embodiment of the present invention.

[0052] Figure 15 The diagram shown is a schematic diagram of the structure of a liquid tank applicable to the insulation system of the anti-sway support area of ​​a liquid tank according to an embodiment of the present invention.

[0053] Component Symbol Explanation

[0054] 100, Liquid tank; 200, Anti-sway support area; 210, Reinforced structure; 220, Pressure-bearing block; 300, Precast insulation block; 400, Modular insulation panel; 401, First precast insulation panel; 402, Second precast insulation panel; 403, Third precast insulation panel; 404, Fourth precast insulation panel; 410, Inner insulation layer; 420, Reinforced layer; 430, Outer insulation layer; 431, Stepped structure; 440, Protrusion 450, Exterior structure; 460, Elastic insulation layer; 470, Prefabricated connecting plate; 510, Insulation patch; 520, First baffle; 530, Second baffle; 600, Inspection hole; 700, Polyurethane foam; 700, Fixing assembly; 710, Fastener; 711, Reinforcing plate; 712, Folded edge; 713, Insulation plug; 720, Connecting post; 730, Fixing stud; 740, Clamping bolt; 800, Protective layer. Detailed Implementation

[0055] The following specific examples illustrate the implementation 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 embodiments, and 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.

[0056] Please see Figures 1 to 15 It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in the actual embodiment. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0057] like Figure 1 and Figure 2 As shown, the anti-sway support area 200 of the liquid tank 100 is located at the top and bottom of the liquid tank 100, referring to the anti-sway support structure itself and the planar area of ​​the liquid tank 100 connected to it. The anti-sway support area 200 includes a reinforcing structure 210 and a pressure-bearing block 220. The reinforcing structure 210 has a gap inside, and the pressure-bearing block 220 is disposed opposite to each other on both sides of the reinforcing structure 210.

[0058] This embodiment provides a thermal insulation system for the anti-sway support area of ​​a liquid tank, such as... Figures 3 to 6 As shown, the insulation system includes a prefabricated insulation block 300, a modular insulation panel 400, a first baffle 510, and a second baffle 520.

[0059] like Figure 4 As shown, a prefabricated insulation block 300 is installed in the gap of the reinforcing structure 210.

[0060] like Figure 3 As shown, the modular insulation panel 400 is formed by splicing multiple prefabricated insulation panels and is arranged around the reinforcing structure 210. The modular insulation panel 400 includes a first surface and a second surface arranged opposite each other. The first surface of the modular insulation panel 400 is laid on the outer surface of the liquid tank 100 near the anti-sway support area 200. Multiple protruding structures 440 are provided on the first surface. The protruding structures 440 can create a gap between the first surface and the outer surface of the liquid tank 100, forming a through annular space, so that the cryogenic liquid leaking after the main shield wall fails can be collected in a predetermined area along this channel. The protruding structures 440 can take different shapes, for example, Figure 14 As shown, the cross-section of the protruding structure 340 can be square, rectangular, circular, or triangular, and its outer surface near the liquid tank 100 protrudes beyond the first surface of the modular insulation panel 400. The second surface of the modular insulation panel 400 is disposed away from the outer surface of the liquid tank 100.

[0061] like Figure 3 , Figure 4 and Figure 6As shown, the first baffle 510 is disposed on the second surface of the modular insulation panel 400 and wraps around the reinforcing structure 210 and the prefabricated insulation block 300. A first space is formed between the first baffle 510, the reinforcing structure 210, the pressure-bearing block 220 and the second surface of the modular insulation panel 400, and the first space is filled with polyurethane foam 600.

[0062] The second baffle 520 encloses the pressure-bearing block 220 and is connected to the first baffle 510 and the reinforcing structure 210. The first baffle 510, the second baffle 520, the pressure-bearing block 220, the reinforcing structure 210, and the polyurethane foam 600 in the first space form a second space, which is filled with polyurethane foam 600.

[0063] Because polyurethane foam 600 is difficult to mold or has an irregular shape after molding, it requires additional processing, including cutting, grinding, and surface protection. In this embodiment, by setting a first baffle 510 and a second baffle 520, the polyurethane foam 600 can be directly molded within the baffle, which can save the processing time for cutting and surface protection and improve design and installation efficiency.

[0064] The insulation system for the anti-sway support area of ​​the liquid tank provided in this embodiment utilizes modular insulation panels 400 and prefabricated insulation blocks 300 to provide a stable insulation framework. Polyurethane foam 600 fills the gaps in the complex structure, simplifying the insulation system's construction, improving design and installation efficiency, reducing the cost of the insulation system, and enhancing the sealing and insulation capabilities of the anti-sway support area insulation system. This insulation system has a high degree of integration and can provide excellent insulation performance in low-temperature environments.

[0065] As one implementation method, such as Figure 4 As shown, the first baffle 510 includes a horizontal plate and two vertical plates, with the two vertical plates arranged opposite each other on both sides of the horizontal plate. The horizontal plate is disposed on the surface of the reinforcing structure 210 that faces away from the outer surface of the liquid tank 100, and the two vertical plates are used to wrap around the prefabricated insulation block 300 and the reinforcing structure 210.

[0066] The second baffle 520 is a hollow truncated pyramid shape. The second baffle 520 is set with an open surface near the reinforcing structure 210 to wrap around the pressure block 220.

[0067] In one implementation, the second baffle 520 is provided with an inspection hole 530. The inspection hole 530 allows for convenient spraying of polyurethane foam 600 into the second space. After the polyurethane foam 600 has cured, its outer surface is sanded until smooth, making the outer surface of the polyurethane foam 600 flush with the outer surfaces of the first baffle 510 and the second baffle 520. When spraying polyurethane foam 600 into the first space, it can be sprayed through the gap between the first baffle 510 and the reinforcing structure 210. Alternatively, both the first baffle 510 and the second baffle 520 may have inspection holes 530. In this case, the polyurethane foam in both the first and second spaces is sprayed through the inspection holes 530.

[0068] As one implementation method, such as Figure 3 , Figure 5 and Figure 6 As shown, the modular insulation panel 400 includes a first prefabricated insulation panel 401, a second prefabricated insulation panel 402, a third prefabricated insulation panel 403, and a fourth prefabricated insulation panel 404. The first, second, and third prefabricated insulation panels 401, 402, and 403 are arranged around the reinforcing structure 210. The first and second prefabricated insulation panels 401 and 402 are adjacent to each other. The fourth prefabricated insulation panel 404 is filled between the first and third prefabricated insulation panels 401 and 403, and between the second and third prefabricated insulation panels 402 and 403. The first, second, third, and fourth prefabricated insulation panels 401, 402, 403, and 404 are spliced ​​together to form a panel shape. Specifically, as shown... Figure 3 and Figure 5 As shown, the modular insulation panel 400 includes two first prefabricated insulation panels 401, two second prefabricated insulation panels 402, two third prefabricated insulation panels 403, and four fourth prefabricated insulation panels 404. The first prefabricated insulation panels 401 and the second prefabricated insulation panels 402 are disposed on the same side of the reinforcing structure 210, and the two first prefabricated insulation panels 401 are disposed opposite to each other on both sides of the reinforcing structure 210, and the two second prefabricated insulation panels 402 are disposed opposite to each other on both sides of the reinforcing structure 210; the two third prefabricated insulation panels 403 are disposed opposite to each other on the other two sides of the reinforcing structure 210; the two fourth prefabricated insulation panels 404 are respectively filled between the first prefabricated insulation panels 401 and the third prefabricated insulation panels 403, and the other two fourth prefabricated insulation panels 404 are respectively filled between the second prefabricated insulation panels 402 and the third prefabricated insulation panels 403.

[0069] The first pre-insulated panel 401, the second pre-insulated panel 402, the third pre-insulated panel 403, and the fourth pre-insulated panel 404 each include an inner insulation layer 410, a reinforcing layer 420, and an outer insulation layer 430 stacked sequentially. The surface of the inner insulation layer 410 closest to the liquid tank 100 is the first surface, and the surface of the outer insulation layer 430 away from the reinforcing layer 420 is the second surface.

[0070] As one implementation method, such as Figures 6 to 10 As shown, the surface of the inner insulation layer 410 adjacent to the reinforcing layer 420 has a larger area than the surface of the reinforcing layer 420 adjacent to the inner insulation layer 410. The surface of the reinforcing layer 420 adjacent to the outer insulation layer 430 is the same as the surface of the outer insulation layer 430 adjacent to the reinforcing layer 420. The area of ​​the first surface is larger than the area of ​​the second surface. Therefore, the sides of the first prefabricated insulation panel 401, the second prefabricated insulation panel 402, the third prefabricated insulation panel 403, and the fourth prefabricated insulation panel 404 can form a stepped structure, facilitating the connection between the subsequent fixing assembly 700 and the interior of the modular insulation panel 400.

[0071] like Figures 6 to 10 As shown, the outer insulation layer 430 has a stepped structure 431 on the surface opposite to the reinforcing layer 420.

[0072] like Figure 11 As shown, elastic insulation layers 450 are provided in the gaps between adjacent inner insulation layers 410 and in the gaps between adjacent outer insulation layers 430.

[0073] As one implementation method, such as Figure 3 and Figure 5 As shown, prefabricated connecting plates 460 are provided at the gaps between the outer insulation layers 430 of the first prefabricated insulation panel 401 and the fourth prefabricated insulation panel 404, the gaps between the outer insulation layers 430 of the second prefabricated insulation panel 402 and the fourth prefabricated insulation panel 404, and the gaps between the outer insulation layers 430 of the third prefabricated insulation panel 403 and the fourth prefabricated insulation panel 404. The prefabricated connecting plates 460 have a structure adapted to the stepped structure 431 to improve the sealing and connection strength between adjacent outer insulation layers 430. Through the optimized structural design of the prefabricated connecting plates 460, a tight connection between adjacent prefabricated insulation panels is ensured. Combined with polyurethane foam filling the gaps, the thermal bridging effect is effectively blocked, enhancing the overall sealing and insulation capacity of the anti-sway support area 200.

[0074] As one implementation method, such as Figure 3 , Figure 5 , Figures 7 to 9As shown, insulation patches 470 are provided on the second surface of the first prefabricated insulation panel 401, the second surface of the second prefabricated insulation panel 402, and the second surface of the third prefabricated insulation panel 403 near the edge of the reinforcing structure 210.

[0075] Insulation patch 470 can be in different shapes, such as... Figure 13 Any of the shapes shown are acceptable; the specific design can be tailored to the actual process requirements.

[0076] As one implementation method, such as Figure 11 As shown, fixing components 700 are provided at the gaps between the inner insulation layers 410 corresponding to the position of the prefabricated connecting plate 460, and between the inner insulation layer 410 and the reinforcing structure 210 corresponding to the position of the insulation patch 470. The use of customized fixing components 700 ensures the stable installation of the prefabricated insulation panels in the irregularly shaped areas of the anti-sway support, overcoming the processing and assembly difficulties caused by the complex structure of traditional solutions, and ensuring uniform coverage of the modular insulation panels 400 and long-term structural stability.

[0077] The fixing assembly 700 includes a fixing member 710, a connecting post 720, a fixing stud 730, and a clamping bolt 740. Both ends of the connecting post 720 are provided with internal threads. The fixing member 710 is connected to one end of the connecting post 720 via the clamping bolt 740. The other end of the connecting post 720 is threadedly connected to one end of the fixing stud 730. The other end of the fixing stud 730 is connected to a fixing stud positioning point on the outer surface of the liquid tank 100. The fixing assembly 700 enables the fixing of the structurally complex modular insulation panel 400, reducing the processing and installation difficulty of the insulation system and improving the quality and reliability of the insulation system.

[0078] The fastener 710 includes a reinforcing plate 711, a flange 712, a cavity, and a connecting part. The cavity has a hollow interior and an insulating plug 713 is disposed within it. Two flanges 712 are disposed opposite each other on both sides of one end of the cavity. The reinforcing plate 711 is disposed on the surface of the flange 712 facing away from the cavity. At least one flange 712 abuts against the surface of the inner insulation layer 410 near the reinforcing layer 420 (i.e., the flange 712 can be disposed on a stepped structure on the side of an adjacent prefabricated insulation panel). The connecting part is disposed at the other end of the cavity and is fastened to the connecting post 720 by clamping bolts 740. As one specific embodiment, such as... Figure 12 As shown, the combined structure of the cavity and connecting part of the fastener 710 is U-shaped, with two flanges 712 disposed on both sides of the U-shaped opening and perpendicular to the opening. A reinforcing plate 711 extends from one flange 712 through the cavity to cover the other flange 712. The reinforcing plate 711 prevents the fastener 710 from shrinking and deforming inward, thus strengthening the fastener 710 and limiting its deformation.

[0079] As one implementation method, such as Figure 12 As shown, there is a certain angle between the folded edge 712 and the contact surface of the inner insulation layer 410, which is between 0° and 30°, thus strengthening the fixed relationship between the folded edge 712 and its contact surface. Specifically, the angle can be, for example, 0°, 5°, 10°, 15°, 20°, 25°, or 30°.

[0080] As one implementation method, such as Figure 5 As shown, a protective layer 800 is provided on the second surface of the modular insulation panel 400, the outer surface of the first baffle 510, and the outer surface of the second baffle 520. The protective layer 800 can enhance the insulation system of the liquid tank 100 to withstand the external environment, including its resistance to water and bioactivity, and adapt to the environmental challenges under the harsh operating conditions of ships.

[0081] As one implementation method, such as Figure 15 As shown, the liquid tank 100 can be prismatic, irregularly shaped, spherical, or square, etc. The material of the liquid tank 100 can be selected from low-temperature metal materials such as nickel steel, high-manganese steel, and aluminum alloy. The material of the anti-sway support is consistent with the material of the liquid tank 100. The pressure block 220 is composed of one or more laminated wood and composite materials.

[0082] In one embodiment, the inner insulation layer 410, the outer insulation layer 430, the insulation patch 470, the insulation plug 713, and the protruding structure 440 can all be composed of one or more insulation materials and reinforcing materials. Insulation materials include, but are not limited to, polyurethane foam, polystyrene foam, polyethylene foam, phenolic foam, polyimide foam, and aerogel. Reinforcing materials include, but are not limited to, glass fiber and hollow glass microspheres. The insulation materials mentioned below can all be composed of the materials listed above, and will not be described further.

[0083] In one embodiment, the materials of the first baffle 510 and the second baffle 520 are selected from one or more of butyl tape, wood board and heat insulation material.

[0084] In one embodiment, the inner insulation layer 410, the reinforcing layer 420, and the outer insulation layer 430 are bonded together using a low-temperature adhesive. The reinforcing layer 420 is composed of one or more mesh-like materials, selected from one or more of glass fiber aluminum foil mesh, carbon fiber mesh, and metal mesh.

[0085] In one embodiment, the elastic insulation layer 450 and the prefabricated connecting plate 460 are composed of one or more elastic insulation materials, which are selected from one or more of glass wool, polyurethane foam, melamine foam, ethylene-vinyl acetate copolymer foam, polyethylene foam, polypropylene foam and polyimide foam.

[0086] In one embodiment, the protective layer 800 is composed of a thermoplastic polyolefin elastomer and a flexible fireproof layer. The thermoplastic polyolefin elastomer is made of polyolefin resin materials such as polypropylene or polyethylene, and the flexible fireproof layer is selected from one or more of ceramic fiber cloth, glass fiber aluminum foil cloth and aluminum silicate fiber felt.

[0087] This embodiment also provides a method for installing an insulation system for the anti-sway support area of ​​a liquid tank, including the following steps:

[0088] S100. Complete the production of the first prefabricated insulation panel 401, the second prefabricated insulation panel 402, the third prefabricated insulation panel 403, the fourth prefabricated insulation panel 404, the prefabricated insulation block 300, the prefabricated connecting plate 460, the first baffle 510, the second baffle 520, the fixing component 700 and the protective layer 800 according to the design requirements.

[0089] S200. Complete the grid division of the outer surface of the liquid tank 100 and the positioning of the fixing studs 730 according to the design requirements;

[0090] S300. After cleaning the paint from the positioning position of the fixing stud on the outer surface of the liquid tank 100, weld the fixing stud 730. The diameter of the grinding is 20mm. The coaxiality tolerance between the actual position of the fixing stud 730 and its positioning position is 3mm. The angle between the fixing stud 730 and the outer surface of the liquid tank 100 is 90°.

[0091] S400, Insert the prefabricated insulation block 300 into the space of the corresponding size of the reinforcing structure 210 in the anti-sway support area 200 of the liquid tank 100;

[0092] S500, within the defined range of the fixing studs 730 on the outer surface of the liquid tank 100, the first prefabricated insulation panel 401, the second prefabricated insulation panel 402 and the third prefabricated insulation panel 403 are installed and connected to the reinforcing structure 210 by the fixing assembly 700, and the fourth prefabricated insulation panel 404 is installed between the first prefabricated insulation panel 401 and the second prefabricated insulation panel 402, and installed between the second prefabricated insulation panel 402 and the third prefabricated insulation panel 403 to form a modular insulation panel 400.

[0093] S600. Install a prefabricated connecting plate 460 at the gap between any two adjacent prefabricated insulation panels in the modular insulation panel 400.

[0094] S700, fix the first baffle 510 to the second surface of the modular insulation board 400, and cover the reinforcing structure 210 and the prefabricated insulation block 300 of the anti-sway support area 200. Spray polyurethane foam 600 from the open spaces on the other two sides into the first space formed by the first baffle 510, the reinforcing structure 210, the prefabricated insulation block 300 and the second surface to a shape close to the design.

[0095] S800, fix the second baffle 520 around the pressure block 220 in the anti-sway support area 200 and cover the sprayed polyurethane foam 600 in the first space.

[0096] S900, Check whether the sprayed polyurethane foam is completely filled through the inspection hole 530 on the first baffle 510 and the second baffle 520, and re-spray.

[0097] S1000, a protective layer 800 is laid on the second surface of the modular insulation board 400 and the outer surface of the first baffle 510 and the second baffle 520. The thickness of the protective layer 800 is 1.2mm and the width of the overlapping part of the protective layer 800 is 30mm.

[0098] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A thermal insulation system for an anti-sway support area of ​​a liquid tank, the anti-sway support area being disposed at the top and bottom of the liquid tank, comprising a reinforcing structure and pressure-bearing blocks, wherein the reinforcing structure has internal gaps, and the pressure-bearing blocks are disposed opposite to each other on both sides of the reinforcing structure, characterized in that, The thermal insulation system includes: Prefabricated insulation blocks are installed within the gaps of the reinforcing structure; A modular insulation panel is formed by splicing multiple prefabricated insulation panels and surrounding the reinforcing structure. The modular insulation panel includes a first surface and a second surface that are arranged opposite to each other. The first surface is laid on the outer surface of the liquid tank near the anti-sway support area and has a protruding structure. The second surface is disposed away from the outer surface of the liquid tank. A first baffle is disposed above the second surface and wraps around the reinforcing structure and the prefabricated insulation block. A first space is formed between the first baffle, the reinforcing structure, the pressure-bearing block and the second surface, and the first space is filled with polyurethane foam. The second baffle wraps around the pressure-bearing block and is connected to the first baffle and the reinforcing structure. The first baffle, the second baffle, the pressure-bearing block, the reinforcing structure, and the polyurethane foam in the first space form a second space, which is filled with polyurethane foam. The modular insulation panel includes multiple first prefabricated insulation panels, multiple second prefabricated insulation panels, multiple third prefabricated insulation panels, and multiple fourth prefabricated insulation panels. The first, second, and third prefabricated insulation panels are arranged around the reinforcing structure. The first and second prefabricated insulation panels are arranged adjacent to each other. The fourth prefabricated insulation panels are filled between the first and third prefabricated insulation panels and between the second and third prefabricated insulation panels. The first, second, third, and fourth prefabricated insulation panels are spliced ​​together to form a panel shape. The first, second, third, and fourth prefabricated insulation panels each include an inner insulation layer, a reinforcing layer, and an outer insulation layer stacked sequentially. The surface of the inner insulation layer closest to the liquid tank is the first surface, and the surface of the outer insulation layer away from the reinforcing layer is the second surface. The surface of the outer insulation layer away from the reinforcing layer has a stepped structure. Elastic insulation layers are provided in the gaps between adjacent inner insulation layers and between adjacent outer insulation layers. Prefabricated connecting plates are provided at the gaps between the outer insulation layers of the first prefabricated insulation board and the fourth prefabricated insulation board, the gaps between the outer insulation layers of the second prefabricated insulation board and the fourth prefabricated insulation board, and the gaps between the outer insulation layers of the third prefabricated insulation board and the fourth prefabricated insulation board. Insulation patches are provided on the second surface of the first prefabricated insulation board, the second surface of the second prefabricated insulation board, and the second surface of the third prefabricated insulation board near the edge of the reinforcing structure. Fixing components are provided at the gaps between the inner insulation layers corresponding to the position of the prefabricated connecting plate, and between the inner insulation layer and the reinforcing structure corresponding to the position of the insulation patch; The fixing assembly includes a fixing member, a connecting column, a fixing stud, and a clamping bolt. The fixing member is connected to one end of the connecting column through the clamping bolt. The other end of the connecting column is threadedly connected to one end of the fixing stud. The other end of the fixing stud is connected to the fixing stud positioning point on the outer surface of the liquid tank. The fastener includes a reinforcing plate, a flange, a cavity, and a connecting part. The cavity has a hollow cavity, and an insulating plug is disposed inside the cavity. Two flanges are disposed opposite to each other on both sides of the cavity. The reinforcing plate is disposed on the surface of the flange facing away from the cavity. At least one flange abuts against the surface of the inner insulating layer near the reinforcing layer. The connecting part is disposed at the other end of the cavity and is connected to the connecting post.

2. The thermal insulation system for the anti-sway support area of ​​the liquid tank according to claim 1, characterized in that, The first baffle includes a horizontal plate and two vertical plates, with the two vertical plates arranged opposite each other on both sides of the horizontal plate.

3. The thermal insulation system for the anti-sway support area of ​​the liquid tank according to claim 1 or 2, characterized in that, The second baffle is hollow in the shape of a quadrangular frustum, and the second baffle is open near the surface of the reinforcing structure.

4. The thermal insulation system for the anti-sway support area of ​​the liquid tank according to any one of claims 1 to 3, characterized in that, The second baffle is provided with an inspection hole; or, both the first baffle and the second baffle are provided with inspection holes.

5. The thermal insulation system for the anti-sway support area of ​​the liquid tank according to claim 1, characterized in that, The surface of the inner insulation layer adjacent to the reinforcing layer has a larger area than the surface of the reinforcing layer adjacent to the inner insulation layer; the surface of the reinforcing layer adjacent to the outer insulation layer is the same as the surface of the outer insulation layer adjacent to the reinforcing layer; the area of ​​the first surface is larger than the area of ​​the second surface.

6. The thermal insulation system for the anti-sway support area of ​​the liquid tank according to claim 1, characterized in that, The folded edge and the contact surface of the inner insulation layer have a certain angle, which is between 0° and 30°.

7. The thermal insulation system for the anti-sway support area of ​​the liquid tank according to claim 1, characterized in that, A protective layer is provided on the second surface of the modular insulation panel, the outer surface of the first baffle, and the outer surface of the second baffle.

8. A method for installing a thermal insulation system for the anti-sway support area of ​​a liquid tank as described in claim 7, characterized in that, Includes the following steps: Complete the production of the first prefabricated insulation panel, the second prefabricated insulation panel, the third prefabricated insulation panel, the fourth prefabricated insulation panel, the prefabricated insulation block, the prefabricated connecting plate, the first baffle, the second baffle, the fixing components and the protective layer according to the design requirements. Complete the grid division of the outer surface of the liquid tank and the positioning of the fixing studs according to the design requirements; After cleaning the paint from the positioning position of the fixing stud on the outer surface of the liquid tank, weld the fixing stud. The diameter of the grinding is 20mm to 30mm. The coaxiality tolerance between the actual position of the fixing stud and its positioning position is 3mm. The angle between the fixing stud and the outer surface of the liquid tank is 87° to 93°. The prefabricated insulation block is inserted into the space of the corresponding size of the reinforcing structure in the anti-sway support area of ​​the liquid tank; Within the defined area of ​​the fixed studs on the outer surface of the liquid tank, the first prefabricated insulation panel, the second prefabricated insulation panel and the third prefabricated insulation panel are installed and connected to the reinforcing structure by the fixing components. The fourth prefabricated insulation panel is installed between the first prefabricated insulation panel and the second prefabricated insulation panel, and is installed between the second prefabricated insulation panel and the third prefabricated insulation panel to form a modular insulation panel. Install a prefabricated connecting plate at the gap between any two adjacent prefabricated insulation panels in the modular insulation panel. The first baffle is fixed to the second surface of the modular insulation board, and the reinforcing structure and prefabricated insulation block of the anti-sway support area are covered. Polyurethane foam is sprayed from the open spaces on the other two sides into the first space formed by the first baffle, the reinforcing structure, the prefabricated insulation block and the second surface until it is close to the design shape. The second baffle is fixed around the pressure block in the anti-sway support area and covers the polyurethane foam that has been sprayed in the first space. Check the inspection holes on the first and second baffles to see if the sprayed polyurethane foam is completely filled and re-spray as needed. A protective layer is applied to the second surface of the modular insulation panel and the outer surfaces of the first and second baffles. The thickness of the protective layer is between 0.5 mm and 1.5 mm, and the width of the overlapping part of the protective layer is not less than 25 mm.

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