An insulation system for a tank float support area and a method of installing the same

Abstract

The application provides an insulation system for a liquid tank anti-floating support area, comprising a modular insulation board and a baffle. The modular insulation board is formed by splicing a plurality of prefabricated insulation boards, and a protruding structure is arranged on a first surface of the liquid tank outer surface. The baffle is arranged on a second surface of the modular insulation board, and surrounds a reinforcing structure, a pressure block fence, and part of the pressure block. Spaces are formed between the baffle, the reinforcing structure, the pressure block fence, and part of the pressure block, and the spaces are filled with polyurethane foam. The insulation system is designed by combining the prefabricated insulation board and the sprayed polyurethane foam, simplifies the structure of the insulation system, improves the design efficiency, and reduces the material and manufacturing costs. Through the modular composite insulation structure design, high integration and structural reliability are realized, the integrity of the insulation system is maintained under low-temperature, dynamic load and vibration working conditions, the safe operation of the liquid tank is ensured, and the IMO specification requirements are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship liquid cargo tank insulation, and particularly relates to an insulation system for a liquid tank anti-floating support area and a mounting method thereof. BACKGROUND

[0002] Liquefied gas carrier and ship using liquefied gas fuel need to be equipped with independent type A and type B liquid tanks or fuel tanks in accordance with the IMO IGC Code specification. As the core bearing structure of low-temperature liquefied gas, the liquid tank needs to have strict liquid tightness and thermal insulation performance. According to the specification requirements, the liquid tank needs to be provided with an insulation system to limit the invasion of external heat flow, maintain the stability of the tank temperature and pressure, and form a leakage prevention and flow guiding channel to safely guide the possible escaped low-temperature liquid cargo to the secondary barrier wall to avoid damage to the ship structure due to low-temperature exposure.

[0003] At present, the insulation system of independent type B liquid tank (such as prismatic tank, special-shaped tank, etc.) mainly adopts the scheme of surface spraying of an insulation layer or installation of a prefabricated insulation plate. However, the liquid tank structure is complex, especially the anti-floating support area, which is a key component connecting the liquid tank and the ship body, needs to bear the functions of anti-floating and lifting, and its geometric shape is irregular and bears dynamic load, which makes it difficult for the traditional insulation scheme to achieve effective coverage and long-term stability. Due to the significant structural irregularity, mechanical vibration and temperature deformation problems of the anti-floating support area, the single spraying or prefabricated insulation plate scheme is prone to joint cracking, insulation layer falling off or thermal bridge effect, resulting in a decrease in insulation performance and leakage flow guiding failure, which threatens the safe operation of the liquid tank.

[0004] In addition, the insulation system of the anti-floating support area needs to consider the requirements of structural strength and low-temperature protection, and the existing technology lacks systematic design for this area, which leads to insufficient adaptability of the insulation layer to the support, and it is difficult to meet the strict requirements of the IMO specification on leakage control and temperature management. Therefore, it is urgent to develop an insulation system specially used for the anti-floating support area of the independent type B liquid tank to solve the insulation sealing problem under the complex geometric structure and provide reliable technical support for the design and construction of ships carrying new type independent B liquid tanks. SUMMARY

[0005] In view of the defects and deficiencies of the prior art, the present application provides an insulation system for a liquid tank anti-floating support area and a mounting method thereof to solve the problem of unsatisfactory insulation effect of the liquid tank anti-floating support area in the prior art.

[0006] To achieve the above object and other related objects, in a first aspect, the present application provides an insulation system for a liquid tank anti-flooding support area, the anti-flooding support area being arranged at an upper portion of a liquid tank, comprising a reinforcing structure arranged close to an outer surface of the liquid tank, a pressure block arranged away from the outer surface of the liquid tank and connected to the reinforcing structure, a pressure block fence arranged around the pressure block and close to the reinforcing structure, and a lifting hole arranged on part of the reinforcing structure, the insulation system comprising:

[0007] a modular insulation board formed by splicing a plurality of prefabricated insulation boards, arranged around the reinforcing structure, the modular insulation board comprising a first surface and a second surface arranged oppositely, the first surface being applied to the outer surface of the liquid tank close to the anti-flooding support area, and the first surface being provided with a protruding structure, and the second surface being arranged away from the outer surface of the liquid tank;

[0008] a baffle arranged on the second surface and arranged around the reinforcing structure, the pressure block fence, and part of the pressure block, a space being formed between the baffle, the reinforcing structure, the pressure block fence, and part of the pressure block, and the space being filled with polyurethane foam.

[0009] As an implementation form, the baffle is provided with a viewing hole.

[0010] As an implementation form, a height difference between a connection between the baffle and the pressure block and a surface of the pressure block away from the reinforcing structure is between 5mm and 100mm.

[0011] As an implementation form, the modular insulation board has a plate structure, comprising a first prefabricated insulation board, a second prefabricated insulation board, a third prefabricated insulation board, a fourth prefabricated insulation board, and a fifth prefabricated insulation board; the third prefabricated insulation board, the second prefabricated insulation board, the first prefabricated insulation board, the first prefabricated insulation board, the second prefabricated insulation board, and the fourth prefabricated insulation board are arranged in sequence in a clockwise direction around the reinforcing structure; the fifth prefabricated insulation board is arranged between the third prefabricated insulation board and the fourth prefabricated insulation board.

[0012] The first prefabricated insulation board, the second prefabricated insulation board, the third prefabricated insulation board, the fourth prefabricated insulation board, and the fifth prefabricated insulation board all comprise an inner insulation layer, a reinforcing layer, and an outer insulation layer arranged in sequence, the inner insulation layer being close to the first surface of the liquid tank, and the outer insulation layer being away from the reinforcing layer and being the second surface.

[0013] As an implementation form, the surface of the inner thermal insulation layer adjacent to the reinforcing layer has a larger area than the surface of the reinforcing layer adjacent to the inner thermal insulation layer; the surface of the reinforcing layer adjacent to the outer thermal insulation layer is consistent with the surface of the outer thermal insulation layer adjacent to the reinforcing layer; the area of the first surface is larger than the area of the second surface; the surface of the outer thermal insulation layer away from the reinforcing layer is provided with a stepped structure.

[0014] The gaps between adjacent inner thermal insulation layers and the gaps between adjacent outer thermal insulation layers are both provided with elastic thermal insulation layers.

[0015] As an implementation form, the second surface of the first prefabricated thermal insulation plate, the second prefabricated thermal insulation plate, the third prefabricated thermal insulation plate, and the fourth prefabricated thermal insulation plate connected with the reinforcing structure is provided with a thermal insulation patch.

[0016] The gaps of the third prefabricated thermal insulation plate and the fifth prefabricated thermal insulation plate, and the gaps of the fourth prefabricated thermal insulation plate and the fifth prefabricated thermal insulation plate are both provided with connecting plates.

[0017] As an implementation form, the gaps between the inner thermal insulation layers corresponding to the positions of the connecting plates, and the gaps between the inner thermal insulation layers and the reinforcing structure corresponding to the positions of the thermal insulation patches are provided with a fixing assembly;

[0018] The fixing assembly comprises a fixing piece, a connecting column, a fixing stud, and a clamping bolt, one end of the connecting column is connected with the fixing piece through the clamping bolt, the other end of the connecting column is threadedly connected with one end of the fixing stud, and the other end of the fixing stud is connected with a fixing stud positioning portion of the outer surface of the liquid tank.

[0019] The fixing piece comprises a reinforcing rib, a folded edge, a cavity portion, and a connecting portion, the cavity portion is provided with a hollow cavity, and a thermal insulation plug is arranged in the cavity; two folded edges are oppositely arranged on both sides of the cavity portion, the reinforcing rib is arranged along the folded edge and the cavity, and at least one folded edge abuts against the surface of the inner thermal insulation layer close to the reinforcing layer; the connecting portion is arranged at the other end of the cavity portion, and the connecting portion is connected with the connecting column.

[0020] As an implementation form, the folded edge is provided with a folded corner.

[0021] As an implementation form, the second prefabricated thermal insulation plate is provided with a notch corresponding to the reinforcing structure.

[0022] As an implementation form, the second surface of the modular thermal insulation plate and the outer surface of the baffle are both provided with a protective layer.

[0023] In a second aspect, the application further provides a method for installing the heat insulation system of the liquid tank anti-floating support area, comprising the following steps:

[0024] According to the design requirements, the production of the first prefabricated heat insulation plate, the second prefabricated heat insulation plate, the third prefabricated heat insulation plate, the fourth prefabricated heat insulation plate, the fifth prefabricated heat insulation plate, the connecting plate, the baffle, the fixing assembly and the protective layer is completed;

[0025] According to the design requirements, the grid division of the outer surface of the liquid tank and the positioning of the fixing studs are completed;

[0026] After the paint on the positioning position of the fixing studs on the outer surface of the liquid tank is polished clean, the fixing studs are welded, the polishing diameter is 20mm-30mm, the coaxial tolerance between the actual position of the fixing studs and the positioning position thereof is 3mm, and the angle between the fixing studs and the outer surface of the liquid tank is 87°-93°;

[0027] In the defined range of the fixing studs on the outer surface of the liquid tank, the first prefabricated heat insulation plate, the second prefabricated heat insulation plate, the third prefabricated heat insulation plate and the fourth prefabricated heat insulation plate are installed and connected to the reinforcing structure through the fixing assembly, and the fifth prefabricated heat insulation plate is installed between the third prefabricated heat insulation plate and the fourth prefabricated heat insulation plate to form a modular heat insulation plate;

[0028] The connecting plate is installed at the gap between the third prefabricated heat insulation plate and the fifth prefabricated heat insulation plate and at the gap between the fourth prefabricated heat insulation plate and the fifth prefabricated heat insulation plate in the modular heat insulation plate;

[0029] The baffles for laying the anti-floating support area of the liquid tank are divided into two groups, each group includes two baffles arranged oppositely, one group of baffles is fixed at a certain thickness from the second surface to the pressure block in advance, polyurethane foam is sprayed from the open space on the other two sides to the inside of the anti-floating support area, the sprayed polyurethane foam approaches the designed shape, the spraying is completed, and the other group of baffles is installed;

[0030] Whether the sprayed polyurethane foam is filled completely is checked through the inspection hole on the baffle, and the spraying is supplemented if necessary;

[0031] The protective layer is laid on the second surface of the modular heat insulation plate and the outer surface of the baffle, the thickness of the protective layer is 0.5mm-1.5mm, the overlapping width of the outer protective layer and the surface of the baffle is not less than 25mm, and the overlapping length of the outer protective layer at the joint is not less than 200mm.

[0032] As described above, the heat insulation system of the liquid tank anti-floating support area and the method for installing the same have the following beneficial effects:

[0033] The heat insulation system of the liquid tank anti-floating support area of the application, through the composite design of prefabricated insulation board and sprayed polyurethane foam, simplifies the structure of the heat insulation system, improves the design efficiency, and reduces the material and manufacturing cost; through the modular composite heat insulation structure design, high integration and structural reliability are realized, the integrity of the heat insulation system is maintained under low temperature, dynamic load and vibration working conditions, the safe operation of the liquid tank is ensured and the IMO specification requirements are met. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The main view structural schematic diagram of the liquid tank and the anti-floating support area is shown.

[0035] Figure 2 The three-dimensional structural schematic diagram of the liquid tank and the anti-floating support area is shown.

[0036] Figure 3 The three-dimensional structural schematic diagram of the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0037] Figure 4 The top view structural schematic diagram of the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0038] Figure 5 The sectional view structural schematic diagram of the embodiment of the application is shown. Figure 4

[0039] Figure 6 The structural schematic diagram of the first prefabricated insulation board in the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0040] Figure 7 The structural schematic diagram of the second prefabricated insulation board in the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0041] Figure 8 The structural schematic diagram of the third prefabricated insulation board in the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0042] Figure 9 The structural schematic diagram of the fourth prefabricated insulation board in the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0043] Figure 10 The structural schematic diagram of the fifth prefabricated insulation board in the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0044] Figure 11 The structural schematic diagram of the gap of the modular heat insulation board in the heat insulation system of the liquid tank anti-floating support area of the embodiment of the application is shown.

[0045] Figure 12 ​Fig. 1 shows a schematic view of the structure of the fixing member in the fixing assembly according to an embodiment of the present application.

[0046] Figure 13 Fig. 4 shows a schematic view of the structure of the protruding structure in the thermal insulation system of the liquid tank anti-floating support area according to an embodiment of the present application.

[0047] Figure 14 Fig. 5 shows a schematic view of the structure of the thermal insulation patch in the thermal insulation system of the liquid tank anti-floating support area according to an embodiment of the present application.

[0048] Figure 15 Fig. 6 shows a schematic view of the structure of the liquid tank applicable to the thermal insulation system of the liquid tank anti-floating support area according to an embodiment of the present application.

[0049] Element Symbol Description

[0050] 100, liquid tank; 200, anti-floating support area; 210, reinforcing structure; 220, pressure block; 230, pressure block fence; 240, hoisting hole; 300, modular thermal insulation plate; 301, first prefabricated thermal insulation plate; 302, second prefabricated thermal insulation plate; 303, third prefabricated thermal insulation plate; 304, fourth prefabricated thermal insulation plate; 305, fifth prefabricated thermal insulation plate; 306, protruding structure; 310, inner thermal insulation layer; 320, reinforcing layer; 330, outer thermal insulation layer; 331, step structure; 340, elastic thermal insulation layer; 350, thermal insulation patch; 360, connecting plate; 370, notch; 400, baffle; 410, inspection hole; 500, polyurethane foam; 600, fixing assembly; 610, fixing member; 611, reinforcing rib; 612, folded edge; 613, folded corner; 614, thermal insulation plug; 620, connecting column; 630, clamping bolt; 700, protective layer. DETAILED DESCRIPTION

[0051] The present application is described in greater detail by the following specific examples. Other advantages and effects of the present application can be easily understood by those skilled in the art from this disclosure. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in this specification without departing from the spirit of the present application.

[0052] Reference is made to Figures 1 to 15 It should be noted that the drawings provided in this embodiment only schematically illustrate the basic concept of the present application, and thus the drawings only show the components related to the present application, rather than the number, shape and size of the components in actual embodiments. The actual implementation of each component may, of course, be changed arbitrarily in terms of shape, number and proportion, and the layout pattern of the components may also be more complex.

[0053] As Figure 1 and Figure 2As shown, the anti-buoyancy support area 200 of the liquid tank 100 is located on the upper part of the liquid tank 100, referring to the anti-buoyancy support structure itself and the planar area of ​​the liquid tank 100 connected to it. The anti-buoyancy support area 200 includes a reinforcing structure 210 provided near the outer surface of the liquid tank 100, a pressure block 220 facing away from the outer surface of the liquid tank 100 and connected to the reinforcing structure 210, a pressure block fence 230 provided around the pressure block 220 and near the reinforcing structure 210, and a lifting hole 240 provided on part of the reinforcing structure 210.

[0054] This embodiment provides a thermal insulation system for the bottom support area of ​​a liquid tank, such as... Figures 3 to 5 As shown, the insulation system includes a modular insulation panel 300 and a baffle 400.

[0055] like Figure 3 and Figure 4 As shown, the modular insulation panel 300 is formed by splicing multiple prefabricated insulation panels and is arranged around the reinforcing structure 210. The modular insulation panel 300 includes a first surface and a second surface arranged opposite each other. The first surface of the modular insulation panel 300 is laid on the outer surface of the liquid tank 100 near the anti-buoyancy support area 200. Multiple protruding structures 306 are provided on the first surface. The protruding structures 306 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 306 can take different shapes, such as... Figure 13 As shown, the cross-section of the protruding structure 306 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 300. The second surface of the modular insulation panel 300 is disposed away from the outer surface of the liquid tank 100.

[0056] like Figures 3 to 5 As shown, the baffle 400 is disposed on the second surface of the modular insulation board 300, surrounding the reinforcing structure 210, the pressure block fence 230, and a portion of the pressure block 220. A space is formed between the baffle 400, the reinforcing structure 210, the pressure block fence 230, and the portion of the pressure block 220, and the space is filled with polyurethane foam 500.

[0057] Because polyurethane foam 500 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 baffle 400, the polyurethane foam 500 can be molded directly within the baffle 400, which can save the processing time for cutting and surface protection and improve design and installation efficiency.

[0058] The modular insulation board 300 provides a stable insulation framework, and the polyurethane foam 500 fills the gap between the complex structures, simplifies the construction of the insulation system, improves the design and installation efficiency, reduces the cost of the insulation system, and improves the sealing and insulation capacity of the insulation system of the anti-floating support area. The integration of the insulation system is high, and it can provide good insulation function in a low temperature environment.

[0059] As an implementation mode, as shown in Figure 3 and Figure 4 , the baffle 400 is provided with an inspection hole 410. The inspection hole 410 is provided to facilitate the spraying of polyurethane foam 500 into the space, and after the polyurethane foam 500 is cured, the outer surface thereof is polished to be flat, and the polyurethane foam 500 is flush with the outer surface of the baffle 400. The shape of the inspection hole 410 can be, for example, circular, square, oval, rectangular, etc.

[0060] As an implementation mode, as shown in Figure 5 , the height difference H between the connection of the baffle 400 and the pressure block 220 and the surface of the pressure block 220 away from the reinforcing structure 210 is between 5mm and 100mm. Alternatively, the height difference H can be, for example, any one of 5mm, 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, or a value selected from any two of the above values.

[0061] As an implementation mode, as shown in Figure 3 and Figure 4 , the modular insulation board 300 includes a first prefabricated insulation board 301, a second prefabricated insulation board 302, a third prefabricated insulation board 303, a fourth prefabricated insulation board 304, and a fifth prefabricated insulation board 305. The third prefabricated insulation board 303, the second prefabricated insulation board 302, the first prefabricated insulation board 301, the first prefabricated insulation board 301, the second prefabricated insulation board 302, and the fourth prefabricated insulation board 304 are sequentially arranged in a clockwise direction around the reinforcing structure 210; the fifth prefabricated insulation board 305 is arranged between the third prefabricated insulation board 303 and the fourth prefabricated insulation board 304, and the fifth prefabricated insulation board 305 is arranged in a planar region close to the outer surface of the liquid tank 100.

[0062] As shown in Figures 5 to 10 , the first prefabricated insulation board 301, the second prefabricated insulation board 302, the third prefabricated insulation board 303, the fourth prefabricated insulation board 304, and the fifth prefabricated insulation board 305 all include an inner insulation layer 310, a reinforcing layer 320, and an outer insulation layer 330 arranged in sequence. The surface of the inner insulation layer 310 close to the surface of the liquid tank 100 is a first surface, and the surface of the outer insulation layer 330 away from the reinforcing layer 320 is a second surface.

[0063] As an implementation form, as shown in Figures 5 to 10 The surface of the inner thermal insulation layer 310 adjacent to the reinforcing layer 320 has a larger area than the surface of the reinforcing layer 320 adjacent to the inner thermal insulation layer 310. The surface of the reinforcing layer 320 adjacent to the outer thermal insulation layer 330 is consistent with the surface of the outer thermal insulation layer 330 adjacent to the reinforcing layer 320. The area of the first surface is larger than the area of the second surface. In this way, the side surfaces of the first prefabricated thermal insulation plate 301, the second prefabricated thermal insulation plate 302, the third prefabricated thermal insulation plate 303, the fourth prefabricated thermal insulation plate 304, and the fifth prefabricated thermal insulation plate 305 can form a stepped structure, facilitating the subsequent connection between the fixing assembly 600 and the interior of the modular thermal insulation plate 300.

[0064] The surface of the outer thermal insulation layer 330 away from the reinforcing layer 320 is provided with a stepped structure 331.

[0065] As shown in Figure 11 The gaps between adjacent inner thermal insulation layers 310 and the gaps between adjacent outer thermal insulation layers 330 are both provided with elastic thermal insulation layers 340.

[0066] As an implementation form, as shown in Figures 6 to 9 The second surface edges of the first prefabricated thermal insulation plate 301, the second prefabricated thermal insulation plate 302, the third prefabricated thermal insulation plate 303, and the fourth prefabricated thermal insulation plate 304 connected with the reinforcing structure 210 are provided with thermal insulation patches 350. The thermal insulation patches 350 can have different shapes, such as the shapes shown in Figure 14 The specific design can be made according to the actual process requirements.

[0067] As shown in Figure 3 and Figure 4 The gaps between the third prefabricated thermal insulation plate 303 and the fifth prefabricated thermal insulation plate 305, and the gaps between the fourth prefabricated thermal insulation plate 304 and the fifth prefabricated thermal insulation plate 305 are both provided with connecting plates 360. The connecting plates 360 are provided with structures matched with the stepped structure 331, so as to improve the sealing performance and connection strength of the connecting plates 360 to the gaps between the third prefabricated thermal insulation plate 303 and the fifth prefabricated thermal insulation plate 305, and improve the sealing performance and connection strength of the connecting plates 360 to the gaps between the fourth prefabricated thermal insulation plate 304 and the fifth prefabricated thermal insulation plate 305.

[0068] As an implementation form, as shown in Figure 11As shown, the fixing assembly 600 is arranged at the gap between the inner thermal insulation layer 310 corresponding to the position of the connecting plate 360 and between the inner thermal insulation layer 310 and the reinforcing structure 210 corresponding to the position of the thermal insulation patch 350. The customized fixing assembly 600 is used to realize the stable installation of the prefabricated thermal insulation plate in the special-shaped area of the anti-floating support, overcome the processing and assembly difficulties caused by the complex structure in the traditional scheme, and ensure the uniform coverage and long-term structural stability of the modular thermal insulation plate 300.

[0069] The fixing assembly 600 includes a fixing piece 610, a connecting column 620, a fixing stud, and a clamping bolt 630. Both ends of the connecting column 620 are provided with internal threads, the fixing piece 610 is connected to one end of the connecting column 620 through the clamping bolt 630, the other end of the connecting column 620 is threadedly connected to one end of the fixing stud, and the other end of the fixing stud is connected to the fixing stud positioning position on the outer surface of the liquid tank 100. The fixing assembly 600 is used to realize the fixing of the modular thermal insulation plate 300 with complex structure, reduce the processing and installation difficulty of the thermal insulation system, and improve the quality and reliability of the thermal insulation system.

[0070] As shown in Figure 12 The fixing piece 610 includes a reinforcing rib 611, a folded edge 612, a cavity part, and a connecting part. The cavity part is provided with a hollow cavity, the cavity is provided with a thermal insulation plug 614, the two folded edges 612 are oppositely arranged on both sides of one end of the cavity part, the reinforcing rib 611 is arranged on the surface of the folded edge 612 away from the cavity part, and at least one folded edge 612 abuts against the surface of the inner thermal insulation layer 310 close to the reinforcing layer 320 (i.e., the folded edge 612 can be arranged on the stepped structure of the side surface of the adjacent prefabricated thermal insulation plate); the connecting part is arranged at the other end of the cavity part, and the connecting part is fastened and connected to the connecting column 620 through the progressive bolt 630. As a specific embodiment, the combined structure of the cavity part and the connecting part of the fixing piece 610 is in a U shape, the two folded edges 612 are arranged on both sides of the opening of the U shape and are perpendicular to the opening. The reinforcing rib 611 extends from one folded edge 612 to cover the other folded edge 612 through the inside of the cavity part. The reinforcing rib 611 can prevent the fixing piece 610 from being deformed inwardly, and plays a reinforcing role on the fixing piece 610 to limit the deformation of the fixing piece 610.

[0071] As an embodiment, as shown in Figure 12 The folded edge 612 is provided with a folded corner 613.

[0072] As an embodiment, as shown in Figure 7 The second prefabricated thermal insulation plate 302 is provided with a notch 370 corresponding to the reinforcing structure 210.

[0073] As an embodiment, as shown in Figure 4As shown, the second surface of the modular insulation board 300 and the outer surface of the baffle 400 are provided with a protective layer 700. The protective layer 700 can enhance the tolerance of the insulation system of the liquid tank 100 to the external environment, water resistance, and the liveliness of the liquid tank 100.

[0074] As an embodiment, as shown in FIG. 1, the liquid tank 100 can be a prismatic tank, a special-shaped tank, a spherical tank, a square tank, etc. The material of the liquid tank 100 can be selected from one of low-temperature metal materials such as nickel steel, high manganese steel, and aluminum alloy. The material of the anti-floating 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. Figure 15

[0075] As an embodiment, the inner insulation layer 310, the outer insulation layer 330, the insulation patch 350, the insulation plug 614, and the protruding structure 306 can be composed of one or more insulation materials and reinforcing materials, the insulation materials including but not limited to polyurethane foam, polystyrene foam, polyethylene foam, phenolic foam, polyimide foam, and aerogel, and the reinforcing materials including but not limited to glass fiber and hollow glass microspheres. The insulation materials appearing below can be composed of the above-mentioned materials, and will not be described in detail.

[0076] As an embodiment, the material of the baffle 400 is selected from one or more of butyl tape, wood board, and insulation materials.

[0077] As an embodiment, the inner insulation layer 310, the reinforcing layer 320, and the outer insulation layer 330 are bonded by a low-temperature adhesive. The reinforcing layer 320 is composed of one or more grid materials selected from one or more of glass fiber aluminum foil mesh cloth, carbon fiber mesh cloth, and metal mesh.

[0078] As an embodiment, the elastic insulation layer 340 and the connecting plate 360 are composed of one or more elastic insulation materials selected from one or more of glass wool, polyurethane foam, melamine foam, ethylene-vinyl acetate copolymer foam, polyethylene foam, polypropylene foam, and polyimide foam.

[0079] As an embodiment, the protective layer 700 is composed of a thermoplastic polyolefin elastomer and a flexible fireproof layer, the thermoplastic polyolefin elastomer is made of a polyolefin resin material selected from 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.

[0080] The embodiment also provides a mounting method of the insulation system of the bottom support area of the liquid tank, including the following steps:

[0081] ​S100, according to the design requirements to complete the first prefabricated insulation board 301, the second prefabricated insulation board 302, the third prefabricated insulation board 303, the fourth prefabricated insulation board 304, the fifth prefabricated insulation board 305, the connecting plate 360, the baffle 400, the fixing assembly 600 and the protective layer 700 production;

[0082] S200, according to the design requirements to complete the grid division of the outer surface of the liquid tank 100 and the positioning of the fixing stud;

[0083] S300, the paint of the positioning position of the fixing stud on the outer surface of the liquid tank 100 is polished clean, the polishing diameter is 30mm, the coaxial tolerance of the actual position of the fixing stud and the positioning position is 3mm, and the angle between the fixing stud and the outer surface of the liquid tank 100 is 90°;

[0084] S400, in the limited interval of the fixing stud on the outer surface of the liquid tank 100, the first prefabricated insulation board 301, the second prefabricated insulation board 302, the third prefabricated insulation board 303, the fourth prefabricated insulation board 304 are installed and connected with the reinforcing structure 210 through the fixing assembly 600, the fifth prefabricated insulation board 305 is installed between the third prefabricated insulation board 303 and the fourth prefabricated insulation board 304, and the modular insulation board 300 is formed;

[0085] S500, the connecting plate 360 is installed at the gap between the third prefabricated insulation board 303 and the fifth prefabricated insulation board 305 in the modular insulation board 300, and the gap between the fourth prefabricated insulation board 304 and the fifth prefabricated insulation board 305;

[0086] S600, the baffle 400 for laying the anti-floating support area 200 of the liquid tank 100 is divided into two groups, each group includes two baffles arranged opposite to each other, one group of baffles 400 is fixed at a certain thickness from the second surface to the pressure block 220 in advance, and polyurethane foam 500 is sprayed from the open space on the other two sides to the inside of the anti-floating support area 200, the sprayed polyurethane foam 500 approaches the designed shape, the spraying is completed, and the other group of baffles 400 is installed;

[0087] S700, whether the sprayed polyurethane foam 500 is filled completely is checked through the inspection hole 410 on the baffle 400, and the spraying is supplemented;

[0088] S800, the protective layer 700 is laid on the second surface of the modular insulation board 300 and the outer surface of the baffle 400, the thickness of the protective layer 700 is 1.2mm, the overlapping width of the outer protective layer 700 and the surface of the baffle 400 is 30mm, and the overlapping length of the outer protective layer 700 at the joint is 220mm.

[0089] The above embodiments are only illustrative of the principles of the present application and its efficacy, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. An insulation system for a floating support area of a liquid tank, the floating support area being provided at an upper portion of the liquid tank, comprising a reinforcing structure provided adjacent to an outer surface of the liquid tank, a pressure block provided opposite to the outer surface of the liquid tank and connected to the reinforcing structure, a pressure block fence provided around the pressure block and adjacent to the reinforcing structure, and a hoisting hole provided in part of the reinforcing structure, characterized in that, The heat insulation system comprises: a modular heat insulation plate formed by splicing a plurality of prefabricated heat insulation plates, arranged around the reinforcing structure, comprising a first surface and a second surface arranged oppositely, the first surface being applied to the outer surface of the liquid tank near the area of the anti-floating support, and the first surface being provided with a protruding structure, and the second surface being arranged away from the outer surface of the liquid tank; a baffle arranged on the second surface and arranged around the reinforcing structure, the pressure block fence, and part of the pressure block, a space being formed between the baffle, the reinforcing structure, the pressure block fence, and part of the pressure block, and the space being filled with polyurethane foam.

2. The liquid tank anti-flooding support area thermal insulation system according to claim 1, characterized in that, The baffle is provided with an inspection hole.

3. A liquid tank anti-flooding support area thermal insulation system according to claim 1 or 2, characterized in that, The height difference between the connection between the baffle and the pressure block and the surface of the pressure block away from the reinforcing structure is between 5mm and 100mm.

4. The liquid tank anti-flooding support area thermal insulation system according to claim 1, characterized in that, The modular heat insulation plate has a plate structure, comprising a first prefabricated heat insulation plate, a second prefabricated heat insulation plate, a third prefabricated heat insulation plate, a fourth prefabricated heat insulation plate, and a fifth prefabricated heat insulation plate; The third prefabricated heat insulation plate, the second prefabricated heat insulation plate, the first prefabricated heat insulation plate, the first prefabricated heat insulation plate, the second prefabricated heat insulation plate, and the fourth prefabricated heat insulation plate are arranged in sequence in a clockwise direction around the reinforcing structure; the fifth prefabricated heat insulation plate is arranged between the third prefabricated heat insulation plate and the fourth prefabricated heat insulation plate; The first prefabricated heat insulation plate, the second prefabricated heat insulation plate, the third prefabricated heat insulation plate, the fourth prefabricated heat insulation plate, and the fifth prefabricated heat insulation plate all comprise an inner heat insulation layer, a reinforcing layer, and an outer heat insulation layer arranged in sequence, the surface of the inner heat insulation layer close to the liquid tank being the first surface, and the surface of the outer heat insulation layer away from the reinforcing layer being the second surface.

5. The liquid tank anti-flooding support area thermal insulation system according to claim 4, characterized in that, The surface of the inner heat insulation layer close to the reinforcing layer is larger in area than the surface of the reinforcing layer close to the inner heat insulation layer; the surface of the reinforcing layer close to the outer heat insulation layer is consistent with the surface of the outer heat insulation layer close to the reinforcing layer; the first surface is larger in area than the second surface; and the surface of the outer heat insulation layer away from the reinforcing layer is provided with a stepped structure; The gaps between adjacent inner heat insulation layers and the gaps between adjacent outer heat insulation layers are both provided with elastic heat insulation layers.

6. The liquid tank anti-flooding support area thermal insulation system according to claim 4, characterized in that, The second surface edges of the first prefabricated heat insulation plate, the second prefabricated heat insulation plate, the third prefabricated heat insulation plate, and the fourth prefabricated heat insulation plate connected with the reinforcing structure are provided with heat insulation patches; The gaps of the third prefabricated heat insulation plate and the fifth prefabricated heat insulation plate and the gaps of the fourth prefabricated heat insulation plate and the fifth prefabricated heat insulation plate are both provided with connecting plates.

7. The liquid tank anti-flooding support area thermal insulation system according to claim 6, characterized in that, The gaps between the inner heat insulation layers corresponding to the positions of the connecting plates and the gaps between the inner heat insulation layers and the reinforcing structure corresponding to the positions of the heat insulation patches are provided with fixing assemblies. The fixing assembly comprises a fixing piece, a connecting column, a fixing stud and a clamping bolt, one end of the fixing piece is connected with one end of the connecting column through the clamping bolt, the other end of the connecting column is threadedly connected with one end of the fixing stud, and the other end of the fixing stud is connected with the fixing stud positioning position on the outer surface of the liquid tank; The fixing piece comprises a reinforcing rib, a folded edge, a cavity part and a connecting part, the cavity part is provided with a hollow cavity, and the cavity is provided with an insulating plug; two folded edges are oppositely arranged on both sides of the cavity part, the reinforcing rib is arranged along the folded edge and the cavity, at least one folded edge abuts against the surface of the inner insulating layer close to the reinforcing layer; the connecting part is arranged at the other end of the cavity part, and the connecting part is connected with the connecting column.

8. The insulation system for a liquid tank anti-flooding support area according to claim 7, characterized in that, An angle is arranged on the folded edge.

9. The liquid tank anti-flooding support area thermal insulation system according to claim 4, characterized in that, The second prefabricated insulating plate is provided with a notch corresponding to the reinforcing structure.

10. The liquid tank anti-flooding support area thermal insulation system according to claim 1, characterized in that, The second surface of the modular insulating plate and the outer surface of the baffle are both provided with a protective layer.

11. A method of installing an insulation system for a liquid tank anti-flooding support area, characterized in that, The steps include: According to the design requirements, the production of the first prefabricated insulating plate, the second prefabricated insulating plate, the third prefabricated insulating plate, the fourth prefabricated insulating plate, the fifth prefabricated insulating plate, the connecting plate, the baffle, the fixing assembly and the protective layer is completed; According to the design requirements, the grid division of the outer surface of the liquid tank and the positioning of the fixing stud are completed; After the paint on the fixing stud positioning position on the outer surface of the liquid tank is polished clean, the fixing stud is welded, the polishing diameter is 20mm-30mm, the coaxial tolerance between the actual position of the fixing stud and the positioning position thereof is 3mm, and the angle between the fixing stud and the outer surface of the liquid tank is 87°-93°; Within the limited range of the fixing stud on the outer surface of the liquid tank, the first prefabricated insulating plate, the second prefabricated insulating plate, the third prefabricated insulating plate and the fourth prefabricated insulating plate are connected with the reinforcing structure through the fixing assembly, the fifth prefabricated insulating plate is installed between the third prefabricated insulating plate and the fourth prefabricated insulating plate, and the modular insulating plate is formed; The connecting plate is installed at the gap between the third prefabricated insulating plate and the fifth prefabricated insulating plate in the modular insulating plate, and at the gap between the fourth prefabricated insulating plate and the fifth prefabricated insulating plate; The baffles for laying the anti-floating support area of the liquid tank are divided into two groups, each group comprises two baffles arranged oppositely, one group of baffles is fixed at a certain thickness from the second surface to the pressure block in advance, polyurethane foam is sprayed from the open space on the other two sides to the inside of the anti-floating support area, the sprayed polyurethane foam approaches the designed shape, the spraying is completed, and the other group of baffles is installed; Whether the sprayed polyurethane foam is filled completely is checked through the inspection hole on the baffle, and the spraying is supplemented if necessary. The protective layer is laid on the second surface of the modular insulating plate and the outer surface of the baffle, the thickness of the protective layer is 0.5mm-1.5mm, the overlapping width of the outer protective layer and the surface of the baffle is not less than 25mm, and the overlapping length of the outer protective layer at the joint is not less than 200mm.

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