A liquid tank liquid collection area insulation system and method of installation

Abstract

The application provides a liquid tank liquid collecting area heat insulation system and a mounting method. A liquid collecting protrusion for collecting liquid is arranged at the bottom of the liquid tank. The liquid collecting protrusion comprises a bottom surface and peripheral side surfaces. The bottom surface and the peripheral side surfaces of the liquid collecting protrusion and a partial bottom surface of the liquid tank within a predetermined range around the liquid collecting protrusion constitute a liquid collecting area. A reinforcing structure is arranged at the joint of at least two side surfaces of the liquid collecting protrusion and the bottom surface of the liquid tank. In the liquid collecting area, a predetermined size area where the reinforcing structure is arranged is a structure reinforcing area, and other areas are non-structure reinforcing areas. The liquid tank liquid collecting area heat insulation system comprises prefabricated heat insulation plates and a sprayed heat insulation layer. A plurality of prefabricated heat insulation plates are laid in the non-structure reinforcing areas to form a plate type heat insulation layer. A gap is reserved between the prefabricated heat insulation plates and the surface of the non-structure reinforcing areas. The sprayed heat insulation layer is laid in the structure reinforcing area. The combination of the plate type heat insulation layer and the sprayed heat insulation layer can realize liquid collecting and better heat insulation effect at the same time.

Description

Technical Field

[0001] This application relates to the field of thermal insulation design technology for marine liquid tanks, and more specifically, to a thermal insulation system for the liquid collection area of ​​a liquid tank and its installation method. Background Technology

[0002] On liquefied gas carriers, the liquid-tight shell used to load cryogenic liquid cargo is commonly referred to as a liquid tank. Liquid tanks can be divided into membrane-type liquid tanks and freestanding liquid tanks. Freestanding liquid tanks include Type A, Type B, and Type C. Among them, Type B freestanding liquid tanks have advantages such as large cargo carrying capacity, unlimited cargo loading volume, low daily cargo evaporation, convenient installation, and easy maintenance, and have been widely used in carriers transporting liquefied gases such as natural gas and liquefied ethane / ethylene. According to the design specifications of freestanding liquid tanks, in order to limit the heat flow entering the tank to a level that the pressure and temperature control system can maintain, an insulation layer needs to be installed on the surface of the tank to control the temperature, pressure, and evaporation rate of the cryogenic liquid cargo inside the tank at the design level.

[0003] Currently, independent Type B liquid tanks primarily achieve insulation by installing prefabricated insulation panels on the tank surface. However, for the uniquely structured Type B liquid tanks, especially the liquid collection area, a single insulation structure has certain limitations. The liquid collection area of ​​a Type B liquid tank serves to collect and store cryogenic liquid leaked after a tank rupture. It mainly consists of a cryogenic metal plate forming a collection protrusion at the bottom of the tank, with a reinforcing structure connecting the cryogenic metal plate to the tank surface.

[0004] Given the relatively complex structure of the liquid collection area, how to design the insulation system in this area to achieve better insulation and liquid collection functions has become a long-term research topic in this field. Summary of the Invention

[0005] The purpose of this application is to provide a liquid tank collection area insulation system and installation method. The liquid tank collection area insulation system of this application achieves the liquid collection function while also achieving better insulation effect through the combined application of plate insulation layer and sprayed insulation layer.

[0006] In a first aspect, a liquid collection area insulation system for a liquid tank is provided. The bottom of the liquid tank is provided with a liquid collection protrusion for collecting liquid. The liquid collection protrusion includes a bottom surface and four sides. The bottom surface of the liquid collection protrusion, the four sides, and the bottom surface of the liquid tank within a predetermined range around the liquid collection protrusion constitute a liquid collection area. A reinforcing structure is provided at the junction of at least two sides of the liquid collection protrusion and the bottom surface of the liquid tank.

[0007] In the liquid collection area, the area of ​​the predetermined size where the reinforcing structure is located is the structural reinforcement area, and the other areas are non-structural reinforcement areas; the insulation system of the liquid collection area of ​​the liquid tank includes prefabricated insulation panels and sprayed insulation layers; several prefabricated insulation panels are laid on the non-structural reinforcement areas and assembled to form a panel insulation layer, with a gap reserved between the prefabricated insulation panels and the surface of the non-structural reinforcement areas; the sprayed insulation layer is laid on the structural reinforcement areas, which is formed by spraying insulation material on the structural reinforcement areas, curing it, and then polishing it.

[0008] In one feasible solution, the junction of the bottom surface of the liquid collecting protrusion and the two adjacent sides is the outward convex corner, the junction of the two adjacent sides of the liquid collecting protrusion and the bottom surface of the liquid tank is the inner corner, the junction of the bottom surface of the liquid collecting protrusion and the side is the protruding edge, and the junction of the side of the liquid collecting protrusion and the bottom surface of the liquid tank is the concave edge.

[0009] The precast insulation panel includes a first precast panel, a second precast panel, a third precast panel, a fourth precast panel, and a fifth precast panel;

[0010] The first precast slab is laid on the surface of the outward convex corner, the second precast slab is laid on the surface of the protruding edge, the third precast slab is laid on the surface of the inward concave edge, the fourth precast slab is laid on the surface of the inner corner, and the fifth precast slab is laid on the planar area of ​​the bottom surface of the liquid collection protrusion and the bottom surface of the liquid tank.

[0011] In one feasible embodiment, the inner surface of the first precast panel is shaped to fit the shape of the outwardly convex corner portion; the inner surface of the fourth precast panel is shaped to fit the shape of the inner corner portion.

[0012] After the first precast slab is installed at the outer corner and the fourth precast slab is installed at the inner corner, the downward-facing side of the fourth precast slab connects with the upward-facing side of the first precast slab.

[0013] In one feasible embodiment, the inner surface of the second precast slab is shaped to fit the protruding edge; the inner surface of the third precast slab is shaped to fit the concave edge.

[0014] After the second precast slab is installed on the protruding side and the third precast slab is installed on the concave side, the upward side of the second precast slab and the downward side of the third precast slab are joined.

[0015] The side dimension of the second precast slab facing the first precast slab is the same as the side dimension of the first precast slab facing the second precast slab.

[0016] The side dimension of the third precast slab facing the fourth precast slab is the same as the side dimension of the fourth precast slab facing the third precast slab.

[0017] In one feasible embodiment, the surface of the structural reinforcement zone includes a portion of the side surface area of ​​the liquid collection protrusion where the reinforcement structure is located, a portion of the bottom surface area near the side surface, and a portion of the bottom surface area of ​​the liquid tank where the reinforcement structure is located.

[0018] In one feasible approach, the prefabricated insulation panels have a uniform thickness, and the surface of the sprayed insulation layer is flush with the surface of the prefabricated insulation panels.

[0019] In one feasible solution, each prefabricated insulation panel includes an inner layer and an outer layer attached to the surface of the inner layer.

[0020] The insulation system for the liquid collection area of ​​the liquid tank also includes fixed components, joint insulation structures, and elastic insulation layers.

[0021] The fixing components are used to fix the prefabricated insulation panels, the joint insulation structure is filled in the joint between adjacent prefabricated insulation panels, and the elastic insulation layer is set at the adjacent position between the prefabricated insulation panels and the sprayed insulation layer.

[0022] In one feasible embodiment, on the side where the prefabricated insulation panels meet, the side of the outer layer is at a predetermined distance from the side of the inner layer to form a first stepped surface on the upper surface of the inner layer edge; the prefabricated insulation panels include a first joint between adjacent inner layers and a second joint between adjacent outer layers.

[0023] A fixing component is installed in the first joint of adjacent prefabricated insulation panels. One end of the fixing component is fixed to the surface of the liquid collection area, and the other end is pressed against the first step surface of the adjacent inner layer.

[0024] The joint insulation structure is sealed and filled in the second joint of adjacent prefabricated insulation panels.

[0025] In one feasible solution, the inner side of the prefabricated insulation panel is flush with the outer side of the sprayed insulation layer on the side where the prefabricated insulation panel meets the sprayed insulation layer, and an elastic insulation layer is attached to the side where the prefabricated insulation panel meets the sprayed insulation layer.

[0026] The prefabricated insulation board has a perforated structure near the edge of the sprayed insulation layer. The perforated structure passes through the outer layer and the inner layer in sequence, and the perforation size on the outer layer is larger than that on the inner layer, so as to form a second step surface at the edge of the perforation in the inner layer.

[0027] A fixing component is installed in the hole of the inner layer. One end of the fixing component is fixed to the surface of the liquid collection area, and the other end is pressed against the second step surface of the inner layer.

[0028] An insulating patch is filled into the corresponding hole in the outer layer.

[0029] In one feasible solution, the fixing components include embedded parts, fixing rods, fixing plates, and fasteners;

[0030] The embedded part is pre-installed on the surface of the liquid collection area, and the bottom end of the fixing rod is connected to the embedded part;

[0031] The fixing piece has a central concave structure and an upper opposing folded edge structure; the concave structure is inserted into the first joint between adjacent inner layers or into the hole in the inner layer; the upper opposing folded edges are respectively covered on the adjacent first step surface at the joint of adjacent inner layers, or covered on the second step surface of the inner layer of the hole structure.

[0032] The fastener passes through the recessed structure in the middle of the fixing plate and connects to the top of the fastener to press the fixing plate firmly onto the first or second step surface.

[0033] In one feasible solution, the insulation system for the liquid collection area of ​​the liquid tank also includes a protective layer, which is laid on the surface of the sprayed insulation layer and the prefabricated insulation panel to form a panel insulation layer, and the protective layers are overlapped at the joints.

[0034] Secondly, a method for installing the aforementioned insulation system for the liquid collection area of ​​the liquid tank is also provided, comprising:

[0035] Prepare prefabricated insulation panels, fixing components, joint insulation structures, elastic insulation layers, protective layers, and insulation materials for forming the sprayed insulation layer.

[0036] According to the design requirements, the liquid collection area is divided into grids. On the one hand, a structurally reinforced area with a reinforced structure is divided into a non-structurally reinforced area. In the non-structurally reinforced area, the installation area of ​​each prefabricated insulation panel is divided, and the installation position of the fixing component is located.

[0037] Pre-fabricated insulation panels are laid in the corresponding installation area of ​​the non-structural reinforcement zone and fixed by fixing components;

[0038] Fill the joint insulation structure in the gap between adjacent prefabricated insulation panels;

[0039] An elastic insulation layer is applied to the side of the prefabricated insulation panel facing the structural reinforcement area;

[0040] Insulation material is sprayed onto the surface of the structural reinforcement area. After curing, it is trimmed and polished to form a sprayed insulation layer that is flush with the surface of the prefabricated insulation panel.

[0041] A protective layer is applied to the surface of the prefabricated insulation board, the joint insulation structure, the elastic insulation layer, and the sprayed insulation layer, with the protective layers overlapping at the joints.

[0042] Compared with existing technologies, the beneficial effects of this application include at least the following: In the liquid collection area insulation system of this application, the liquid collection area is divided into a structurally reinforced area and a non-structurally reinforced area based on whether the area has a reinforcing structure. A prefabricated insulation panel is applied to the surface of the non-structurally reinforced area to form a panel-type insulation layer. Since there are no irregularly shaped reinforcing structures in the non-structurally reinforced area, the prefabricated insulation panel can relatively easily adhere to the surface of the area, achieving a better insulation effect. Furthermore, a gap is reserved between the prefabricated insulation panel and the surface of the non-structurally reinforced area, which can guide leaked cryogenic liquid to the area, realizing the collection and storage of cryogenic liquid leaked after a tank rupture. Simultaneously, due to the presence of irregularly shaped reinforcing structures in the structurally reinforced area, the sprayed insulation layer formed by spraying insulation material can adhere very well to the surface of the structurally reinforced area, thereby effectively reducing the risk of heat loss at the reinforced structure and improving the insulation effect at the reinforced structure.

[0043] In summary, the liquid collection area insulation system of this application, through the combined application of plate insulation layer and sprayed insulation layer, achieves the liquid collection function in the collection area while also achieving better insulation effect. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of a liquid tank according to an embodiment of this application;

[0046] Figure 2 This is a schematic diagram of the structure of a liquid collection area insulation system for a liquid tank, as shown in an embodiment of this application.

[0047] Figure 3 For along Figure 2 Sectional view of AA;

[0048] Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 These are schematic diagrams illustrating the structures of different prefabricated insulation panels as shown in the embodiments of this application;

[0049] Figure 10 This is a schematic diagram of the structure at the adjacent prefabricated insulation panels shown in an embodiment of this application;

[0050] Figure 11This is a schematic diagram of the perforated structure of a prefabricated insulation panel shown in an embodiment of this application;

[0051] Figure 12 This is an exploded view of the structure of a fixing component as shown in an embodiment of this application;

[0052] Figure 13 The diagram shows the structure of various thermal insulation patches in the embodiments of this application.

[0053] In the diagram: 100, Liquid collection protrusion; 200, Liquid tank; 201, Pad block; 300, Reinforcing structure; 1, Precast insulation panel; 101, Inner layer; 102, Outer layer; 103, First step surface; 104, Second step surface; 105, Reinforcing layer; T, Hole-cut structure; 11, First precast panel; 12, Second precast panel; 13, Third precast panel; 14, Fourth precast panel; 15, Fifth precast panel; 2, Sprayed insulation layer; 3, Fixing component; 31, Embedded part; 32, Fixing rod; 33, Fixing piece; 34, Fastener; 4, Joint insulation structure; 41, Elastic strip; 42, Insulation covering layer; 5, Elastic insulation layer; 6, Insulation patch; 7, Protective layer. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0056] like Figure 2 As shown, this application first provides a thermal insulation system for the liquid collection area of ​​a liquid tank. See also... Figure 1 The bottom of the liquid tank 200 is provided with a liquid collecting protrusion 100 for collecting liquid. The liquid collecting protrusion 100 includes a bottom surface and four surrounding sides. The bottom surface of the liquid collecting protrusion 100, its four surrounding sides, and a portion of the bottom surface of the liquid tank 200 within a predetermined range around the liquid collecting protrusion 100 constitute a liquid collecting area. See also Figure 2 A reinforcing structure 300 is provided at the junction of at least two sides of the liquid collection protrusion 100 and the bottom surface of the liquid tank 200.

[0057] like Figure 2 and Figure 3 As shown, in the liquid tank collection area insulation system of this embodiment, the area of ​​the predetermined size where the reinforcing structure 300 is located in the collection area is the structural reinforcement area, and the other areas are non-structural reinforcement areas. The liquid tank collection area insulation system includes a prefabricated insulation panel 1 and a sprayed insulation layer 2. If the prefabricated insulation panel 1 is laid on the non-structural reinforcement area to form a panel-type insulation layer, a gap is reserved between the prefabricated insulation panel 1 and the surface of the non-structural reinforcement area. The sprayed insulation layer 2 is laid on the structural reinforcement area, and it is formed by spraying insulation material onto the structural reinforcement area, curing it, and then polishing it.

[0058] In the liquid collection area insulation system of this embodiment, the collection area is divided into a structurally reinforced area and a non-structurally reinforced area based on whether the area has a reinforcing structure 300. A prefabricated insulation panel 1 is laid on the surface of the non-structurally reinforced area to form a panel-type insulation layer. Since there are no irregularly shaped reinforcing structures 300 in the non-structurally reinforced area, the prefabricated insulation panel 1 can relatively easily adhere to the area surface, achieving a better insulation effect. Furthermore, a gap is reserved between the prefabricated insulation panel 1 and the surface of the non-structurally reinforced area, which can guide leaked cryogenic liquid to the area, realizing the collection and storage of cryogenic liquid leaked after a tank rupture. Simultaneously, in the structurally reinforced area, due to the presence of irregularly shaped reinforcing structures 300, the sprayed insulation layer 2 formed by spraying insulation material can adhere very well to the surface of the structurally reinforced area, thereby effectively reducing the risk of heat loss at the reinforcing structure 300 and improving the insulation effect at the reinforcing structure 300.

[0059] In summary, the liquid collection area insulation system of this embodiment, through the combined application of plate insulation layer and sprayed insulation layer, achieves the liquid collection function in the collection area while also achieving better insulation effect.

[0060] In some embodiments, the sprayed insulation material forming the sprayed insulation layer 2 may be polyurethane foam.

[0061] In some embodiments, such as Figure 2 and Figure 3 As shown, the surface of the structural reinforcement area includes a portion of the side surface area of ​​the liquid collecting protrusion 100 where the reinforcement structure 300 is located, a portion of the bottom surface area near the side surface, and a portion of the bottom surface area of ​​the liquid tank 200 where the reinforcement structure 300 is located. That is, the sprayed insulation layer 2 completely covers the side reinforcement structure 300 and extends to cover a portion of the bottom surface of the liquid tank 200 and a portion of the bottom surface of the liquid collecting protrusion 100.

[0062] Preferably, the thickness of each prefabricated insulation panel 1 is consistent, and the surface of the sprayed insulation layer 2 is flush with the surface of the prefabricated insulation panel 1.

[0063] In some embodiments, such as Figures 4 to 11As shown, each prefabricated insulation panel 1 includes an inner layer 101 and an outer layer 102 attached to the surface of the inner layer 101. For example... Figure 10 and Figure 11 As shown, the insulation system for the liquid collection area of ​​the liquid tank also includes a fixing component 3, a joint insulation structure 4, and an elastic insulation layer 5. The fixing component 3 is used to fix the prefabricated insulation panel 1, the joint insulation structure 4 is filled in the joint between adjacent prefabricated insulation panels 1, and the elastic insulation layer 5 is set at the adjacent position between the prefabricated insulation panel 1 and the sprayed insulation layer 2.

[0064] In some embodiments, in the structure of the prefabricated insulation panel 1, the outer layer 102 may consist of only a single layer of insulation, or it may include at least two layers of insulation stacked together. Similarly, the inner layer 101 may consist of only a single layer of insulation, or it may include at least two layers of insulation stacked together. A reinforcing layer 105 may be provided between adjacent insulation layers and between the outer layer 102 and the inner layer 101. The reinforcing layer 105 may be a planar mesh structure. The main material of the insulation layer includes, but is not limited to, polyurethane foam, polystyrene foam, polyethylene plastic, and phenolic foam, and it may be reinforced with glass fiber, hollow glass microspheres, etc. The reinforcing layer 105 may be composed of one or more mesh materials, such as glass fiber mesh, carbon fiber mesh, and metal mesh. The insulation layer and the reinforcing layer 105 may be bonded together with low-temperature adhesive.

[0065] In some embodiments, such as Figure 10 As shown, the joint insulation structure 4 may include an elastic strip 41 and an insulation covering layer 42 that wraps around the elastic strip 41. The elastic strip 41 is also made of insulation material. The surface of the insulation body is covered with an elastic insulation layer to form an integral structure to increase the sealing effect of the joint. The insulation covering layer 42 and the elastic insulation layer 5 may be made of materials including but not limited to glass wool, elastic cotton, aerogel felt, polyethylene plastic, etc.

[0066] In some embodiments, such as Figure 10 As shown, in the side where the prefabricated insulation panels 1 and 1 are joined, the side of the outer layer 102 is a predetermined distance from the side of the inner layer 101, so as to form a first step surface 103 on the upper surface of the edge of the inner layer 101; the adjacent prefabricated insulation panels 1 include a first joint between adjacent inner layers 101 and a second joint between adjacent outer layers 102; a fixing component 3 is provided in the first joint of the adjacent prefabricated insulation panels 1, one end of the fixing component 3 is fixed to the surface of the liquid collection area, and the other end is pressed on the first step surface 103 of the adjacent inner layer 101; a joint insulation structure 4 is sealed and filled in the second joint of the adjacent prefabricated insulation panels 1.

[0067] In some embodiments, such as Figure 2 and Figure 3As shown, in the side where the prefabricated insulation board 1 and the sprayed insulation layer 2 meet, the side of the inner layer 101 is flush with the side of the outer layer 102, and an elastic insulation layer 5 is attached to the side where the prefabricated insulation board 1 and the sprayed insulation layer 2 meet. Figure 4 and Figure 8 As shown, the prefabricated insulation panel 1 has a perforated structure T near the edge of the sprayed insulation layer 2. (See also...) Figure 11 The perforated structure T passes sequentially through the outer layer 102 and the inner layer 101, with the perforation size on the outer layer 102 being larger than that on the inner layer 101, thus forming a second stepped surface 104 at the edge of the perforation in the inner layer 101. A fixing component 3 is installed in the perforation of the inner layer 101, with one end fixed to the surface of the liquid collection area and the other end pressed against the second stepped surface 104 of the inner layer 101. See also... Figure 2 Insulation patch 6 is filled into the hole corresponding to the outer layer 102. See also Figure 13 The shape of the thermal insulation patch 6 can take many forms.

[0068] In some embodiments, such as Figure 10 , Figure 11 and Figure 12 As shown, the fixing component 3 includes an embedded part 31, a fixing rod 32, a fixing plate 33, and a fastener 34. The embedded part 31 is pre-embedded on the surface of the liquid collection area, and the bottom end of the fixing rod 32 is connected to the embedded part 31. The fixing plate 33 has a structure with a central concave structure and upper opposing folded edges; the concave structure is inserted into the first joint between adjacent inner layers 101 or into the hollowed-out holes of the inner layers 101; the upper opposing folded edges are respectively covered on the adjacent first step surfaces 103 at the joint of adjacent inner layers 101, or on the second step surface 104 of the hollowed-out inner layer 101. The fastener 34 passes through the central concave structure of the fixing plate 33 and is connected to the top end of the fastener 34 to press the fixing plate 33 onto the first step surface 103 or the second step surface 104.

[0069] The embedded part 31 can be a welded bolt embedded in the surface of the liquid collection area, and the fastener 34 can be a standard bolt. The two ends of the fixing rod 32 can be provided with internal threaded holes for threaded engagement with the embedded part 31 and the fastener 34, respectively. The fixing rod 32 can be made of a material with low thermal conductivity, including but not limited to wood, plastics, and composite materials, such as wood and Teflon plastics, thereby reducing heat transmission along the axial direction of the fixing rod 32. The fixing plate 33 can be made of a low-temperature resistant material, including but not limited to metals, plastics, and composite materials.

[0070] In some embodiments, the fixing component 3 may further include an elastic bushing (not shown) and an insulating filler (not shown). The elastic bushing is fitted onto the outer wall of the fixing rod 32, and the insulating filler is filled into the recessed structure in the middle of the fixing piece 33. The materials of the elastic bushing and the insulating filler include, but are not limited to, glass wool, elastic cotton, aerogel felt, polyethylene plastic, etc., and their function is to fill gaps and maintain good thermal insulation effect. In addition, a filler layer (not shown) may be provided between the insulating filler and the fastener 34, the materials of which include, but are not limited to, low-temperature adhesive, silicone, epoxy resin adhesive, etc., to further increase the sealing and thermal insulation effect.

[0071] In some embodiments, the insulation system for the liquid collection area of ​​the liquid tank includes a protective layer 7, which is applied to the surface of the plate-type insulation layer formed by the splicing of the sprayed insulation layer 2 and the prefabricated insulation panel 1, with the protective layers 7 overlapping at the joints. The material of the protective layer 7 includes polymer materials (such as thermoplastic polyolefin elastomer (TPO), which is made of polyolefin resins including but not limited to polypropylene (PP) or polyethylene (PE), fiberglass materials, and metal materials, etc. It can provide good mechanical protection and anti-aging protection.

[0072] In some embodiments, such as Figure 10 and Figure 11 As shown, a pad 201 is provided between the prefabricated insulation board 1 and the surface of the liquid collection area to form a leakage channel between the prefabricated insulation board 1 and the surface of the liquid collection area, so that the low-temperature liquid leaked after the main screen wall fails is collected in the liquid collection area along this channel and then guided out.

[0073] In some embodiments, such as Figure 2 and Figure 3 As shown, the junction of the bottom surface of the liquid collecting protrusion 100 and the adjacent two side surfaces is the outward convex corner, the junction of the adjacent two side surfaces of the liquid collecting protrusion 100 and the bottom surface of the liquid tank 200 is the inner corner, the junction of the bottom surface of the liquid collecting protrusion 100 and the side surface is the protruding edge, and the junction of the side surface of the liquid collecting protrusion 100 and the bottom surface of the liquid tank 200 is the concave edge.

[0074] Among them, see Figures 4 to 9 The prefabricated insulation panel 1 includes a first prefabricated panel 11, a second prefabricated panel 12, a third prefabricated panel 13, a fourth prefabricated panel 14, and a fifth prefabricated panel 15. The first prefabricated panel 11 is laid on the surface of the outwardly convex corner portion, the second prefabricated panel 12 is laid on the surface of the convex edge portion, the third prefabricated panel 13 is laid on the surface of the inwardly concave edge portion, the fourth prefabricated panel 14 is laid on the surface of the inner corner portion, and the fifth prefabricated panel 15 is laid on the planar area of ​​the bottom surface of the liquid collection protrusion 100 and the bottom surface of the liquid tank 200.

[0075] In some embodiments, such as Figure 4As shown, the inner surface of the first precast plate 11 is shaped to fit the shape of the outwardly convex corner portion. For example... Figure 7 As shown, the inner surface of the fourth precast plate 14 is shaped to fit the shape of the inner corner.

[0076] like Figure 2 As shown, after the first precast panel 11 is installed on the outer convex corner and the fourth precast panel 14 is installed on the inner corner, the downward-facing side of the fourth precast panel 14 mates with the upward-facing side of the first precast panel 11. A fixing component 3 can be provided at a predetermined position at the joint between the fourth precast panel 14 and the first precast panel 11 to achieve fixation, and a joint insulation structure 4 is filled into the joint between the fourth precast panel 14 and the first precast panel 11.

[0077] In some embodiments, such as Figure 5 As shown, the inner surface of the second precast plate 12 is shaped to fit the shape of the protruding edge. Figure 6 As shown, the inner surface of the third precast plate 13 is shaped to fit the shape of the concave edge.

[0078] like Figure 2 As shown, after the second precast slab 12 is installed on the protruding side and the third precast slab 13 is installed on the concave side, the upward side of the second precast slab 12 and the downward side of the third precast slab 13 are joined together.

[0079] The side dimension of the second precast slab 12 facing the first precast slab 11 is the same as the side dimension of the first precast slab 11 facing the second precast slab 12. A fixing component 3 can be set at a predetermined position at the joint between the second precast slab 12 and the first precast slab 11 to achieve fixing, and a joint insulation structure 4 is filled in the joint between the second precast slab 12 and the first precast slab 11.

[0080] The side dimension of the third precast slab 13 facing the fourth precast slab 14 is the same as the side dimension of the fourth precast slab 14 facing the third precast slab 13. A fixing component 3 can be set at a predetermined position at the joint between the third precast slab 13 and the fourth precast slab 14 to achieve fixing, and a joint insulation structure 4 is filled in the joint between the third precast slab 13 and the fourth precast slab 14.

[0081] This application embodiment also provides an installation method for the aforementioned liquid tank collection area insulation system, including:

[0082] S1. Prepare prefabricated insulation board 1, fixing components 3, joint insulation structure 4, elastic insulation layer 5, protective layer 7, and insulation material for forming sprayed insulation layer 2.

[0083] S2. According to the design requirements, the liquid collection area is divided into grids. On the one hand, a structural reinforcement area with a reinforcement structure 300 is divided, and on the other hand, a non-structural reinforcement area is divided. In the non-structural reinforcement area, the installation area of ​​each prefabricated insulation panel 1 is divided, and the installation position of the fixing component 3 is located.

[0084] S3. Lay the prefabricated insulation board 1 in the corresponding installation area of ​​the non-structural reinforcement area and fix it with the fixing component 3;

[0085] S4. Fill the joint insulation structure 4 in the joint between adjacent prefabricated insulation panels 1.

[0086] S5. An elastic insulation layer 5 is laid on the side of the prefabricated insulation board 1 facing the structural reinforcement area.

[0087] S6. Spray insulation material onto the surface of the structural reinforcement area, and after curing, trim and polish to form the sprayed insulation layer 2, which is flush with the surface of the prefabricated insulation board 1.

[0088] S7. A protective layer 7 is laid on the surface of the prefabricated insulation board 1, the joint insulation structure 4, the elastic insulation layer 5 and the sprayed insulation layer 2, and the protective layers 7 are overlapped at the joints.

[0089] In summary, the liquid tank collection area insulation system of this application, with its prefabricated insulation panel 1 combined with the sprayed insulation layer 2, improves the sealing and insulation capabilities of the complex collection area. The fixing components 3 enable the secure fixing of the complex and varied types of prefabricated insulation panels 1, reducing installation difficulty. Furthermore, the diverse structural forms of the irregularly shaped prefabricated insulation panels 1 can well adapt to the corners, edges, and planar areas of the collection area, achieving multi-type compatibility of prefabricated insulation panels 1 for different areas, thus improving installation efficiency and reliability. The use of various prefabricated components also standardizes the types of prefabricated insulation panels 1, helping to reduce costs.

[0090] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A liquid collection area insulation system for a liquid tank, wherein a liquid collection protrusion (100) is provided at the bottom of the liquid tank (200) for collecting liquid, the liquid collection protrusion (100) includes a bottom surface and four sides, the bottom surface of the liquid collection protrusion (100), the four sides of the liquid collection protrusion (100) and a portion of the bottom surface of the liquid tank (200) within a predetermined range around the liquid collection protrusion (100) constitute a liquid collection area, and a reinforcing structure (300) is provided at the junction of at least two sides of the liquid collection protrusion (100) and the bottom surface of the liquid tank (200). Its features are, In the liquid collection area, the area of ​​the predetermined size where the reinforcing structure (300) is located is the structural reinforcement area, and the other areas are non-structural reinforcement areas; The insulation system for the liquid collection area of ​​the liquid tank includes a prefabricated insulation panel (1) and a sprayed insulation layer (2). A plurality of the prefabricated insulation panels (1) are laid on the non-structural reinforcement area to form a panel insulation layer, and a gap is reserved between the prefabricated insulation panels (1) and the surface of the non-structural reinforcement area. The sprayed insulation layer (2) is applied to the structural reinforcement area and is formed by spraying insulation material onto the structural reinforcement area, curing it, and then polishing it. The liquid collection area insulation system of the liquid tank also includes an elastic insulation layer (5), which is disposed adjacent to the prefabricated insulation board (1) and the sprayed insulation layer (2).

2. The liquid collection area insulation system for the liquid tank according to claim 1, characterized in that, The junction of the bottom surface of the liquid collecting protrusion (100) and the adjacent two side surfaces is the outward convex corner, the junction of the adjacent two side surfaces of the liquid collecting protrusion (100) and the bottom surface of the liquid tank (200) is the inner corner, the junction of the bottom surface of the liquid collecting protrusion (100) and the side surface is the protruding edge, and the junction of the side surface of the liquid collecting protrusion (100) and the bottom surface of the liquid tank (200) is the concave edge. The prefabricated insulation panel (1) includes a first prefabricated panel (11), a second prefabricated panel (12), a third prefabricated panel (13), a fourth prefabricated panel (14), and a fifth prefabricated panel (15). The first precast plate (11) is laid on the surface of the outer convex corner portion, the second precast plate (12) is laid on the surface of the protruding edge portion, the third precast plate (13) is laid on the surface of the inner concave edge portion, the fourth precast plate (14) is laid on the surface of the inner corner portion, and the fifth precast plate (15) is laid on the planar area of ​​the bottom surface of the liquid collection protrusion (100) and the bottom surface of the liquid tank (200).

3. The liquid collection area insulation system for the liquid tank according to claim 2, characterized in that, The inner surface of the first precast plate (11) is shaped to fit the shape of the outwardly convex corner portion; the inner surface of the fourth precast plate (14) is shaped to fit the shape of the inner corner portion. After the first precast plate (11) is installed on the outer corner and the fourth precast plate (14) is installed on the inner corner, the downward side of the fourth precast plate (14) is connected to the upward side of the first precast plate (11).

4. The liquid collection area insulation system for the liquid tank according to claim 3, characterized in that, The inner surface of the second precast plate (12) is shaped to fit the shape of the protruding edge; the inner surface of the third precast plate (13) is shaped to fit the shape of the concave edge. After the second precast plate (12) is installed on the protruding side and the third precast plate (13) is installed on the concave side, the upward side of the second precast plate (12) and the downward side of the third precast plate (13) are joined. The side dimension of the second precast slab (12) facing the first precast slab (11) is the same as the side dimension of the first precast slab (11) facing the second precast slab (12); The side dimension of the third precast slab (13) facing the fourth precast slab (14) is the same as the side dimension of the fourth precast slab (14) facing the third precast slab (13).

5. The liquid collection area insulation system for the liquid tank according to claim 1, characterized in that, The surface of the structural reinforcement area includes a portion of the side surface area of ​​the liquid collection protrusion (100) where the reinforcement structure (300) is located, a portion of the bottom surface area near the side surface, and a portion of the bottom surface area of ​​the liquid tank (200) where the reinforcement structure (300) is located.

6. The liquid tank collection area insulation system according to any one of claims 1 to 5, characterized in that, The thickness of each of the prefabricated insulation panels (1) is consistent, and the surface of the sprayed insulation layer (2) is flush with the surface of the prefabricated insulation panel (1).

7. The liquid collection area insulation system for the liquid tank according to claim 6, characterized in that, Each of the prefabricated insulation panels (1) includes an inner layer (101) and an outer layer (102) attached to the surface of the inner layer (101). The liquid collection area insulation system of the liquid tank also includes a fixing component (3) and a joint insulation structure (4). The fixing component (3) is used to fix the prefabricated insulation board (1), and the joint insulation structure (4) is filled in the joint between adjacent prefabricated insulation boards (1).

8. The liquid collection area insulation system for the liquid tank according to claim 7, characterized in that, In the side where the prefabricated insulation board (1) is joined to the prefabricated insulation board (1), the side of the outer layer (102) is at a predetermined distance from the side of the inner layer (101) to form a first stepped surface (103) on the upper surface of the edge of the inner layer (101); the adjacent prefabricated insulation boards (1) include a first joint between the adjacent inner layers (101) and a second joint between the adjacent outer layers (102); The fixing component (3) is provided in the first joint of the adjacent prefabricated insulation board (1), one end of the fixing component (3) is fixed to the surface of the liquid collection area, and the other end is pressed on the first step surface (103) of the adjacent inner layer (101); The joint insulation structure (4) is sealed and filled in the second joint of the adjacent prefabricated insulation board (1).

9. The liquid collection area insulation system for the liquid tank according to claim 8, characterized in that, In the side where the prefabricated insulation board (1) and the sprayed insulation layer (2) meet, the side of the inner layer (101) is flush with the side of the outer layer (102), and the elastic insulation layer (5) is attached to the side where the prefabricated insulation board (1) and the sprayed insulation layer (2) meet. The prefabricated insulation board (1) has a perforated structure near the edge of the sprayed insulation layer (2). The perforated structure passes through the outer layer (102) and the inner layer (101) in sequence. The perforation size on the outer layer (102) is larger than the perforation size on the inner layer (101) so as to form a second step surface (104) at the edge of the perforation on the inner layer (101). The fixing component (3) is provided in the hole of the inner layer (101). One end of the fixing component (3) is fixed to the surface of the liquid collection area, and the other end is pressed on the second step surface (104) of the inner layer (101). An insulating patch (6) is filled into the hole corresponding to the outer layer (102).

10. The liquid collection area insulation system for the liquid tank according to claim 9, characterized in that, The fixing component (3) includes an embedded part (31), a fixing rod (32), a fixing piece (33), and a fastener (34). The embedded part (31) is pre-set on the surface of the liquid collection area, and the bottom end of the fixing rod (32) is connected to the embedded part (31); The fixing piece (33) has a middle concave structure and an upper opposite folded edge structure; the concave structure is inserted into the first joint between adjacent inner layers (101) or into the hole of the inner layer (101); the upper opposite folded edge is respectively covered on the adjacent first step surface (103) at the joint of adjacent inner layers (101), or covered on the second step surface (104) of the inner layer (101) with the hole structure; The fastener (34) passes through the recessed structure in the middle of the fixing piece (33) and is connected to the top of the fastener (34) to press the fixing piece (33) onto the first step surface (103) or the second step surface (104).

11. The liquid collection area insulation system for the liquid tank according to claim 6, characterized in that, It also includes a protective layer (7), which is laid on the surface of the panel insulation layer formed by splicing the sprayed insulation layer (2) and the prefabricated insulation board (1), and the protective layer (7) is overlapped at the joint.

12. An installation method for a liquid tank collection area insulation system as described in any one of claims 1 to 11, characterized in that, include: Prepare prefabricated insulation panels (1), fixing components (3), joint insulation structures (4), elastic insulation layers (5), protective layers (7), and insulation materials for forming sprayed insulation layers (2); According to the design requirements, the liquid collection area is divided into grids. On the one hand, a structural reinforcement area with a reinforced structure (300) is divided, and on the other hand, a non-structural reinforcement area is divided. In the non-structural reinforcement area, the installation area of ​​each prefabricated insulation board (1) is divided, and the installation position of the fixing component (3) is located. The prefabricated insulation board (1) is laid in the corresponding installation area of ​​the non-structural reinforcement area and fixed by the fixing component (3); A joint insulation structure (4) is filled in the gap between adjacent prefabricated insulation panels (1). An elastic insulation layer (5) is laid on the side of the prefabricated insulation panel (1) facing the structural reinforcement area. Insulation material is sprayed onto the surface of the structural reinforcement area. After curing, it is trimmed and polished to form a sprayed insulation layer (2), which is flush with the surface of the prefabricated insulation board (1). A protective layer (7) is applied to the surface of the prefabricated insulation board (1), the joint insulation structure (4), the elastic insulation layer (5) and the sprayed insulation layer (2), and the protective layers (7) are overlapped at the joints.

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