Hot corner protection structure and film enclosure system

Abstract

The invention relates to a hot corner protection structure and a thin film enclosure system, and relates to the technical field of thin film enclosure systems. Comprising a heat insulation module, a main corrugated plate and an embedded part. The heat insulation module is arranged on the inner wall of the outer tank body and comprises an upper heat insulation module and a lower heat insulation module, and a gap is formed between the upper heat insulation module and the lower heat insulation module. The main corrugated plate is arranged on the side, away from the inner wall of the outer tank body, of the heat insulation module and covers the upper heat insulation module and the lower heat insulation module at the same time. The embedded part is fixed on the inner wall of the outer tank body. And the secondary corrugated plate is arranged between the lower heat insulation module and the main corrugated plate. The apron board is connected between the embedded part and the secondary corrugated plate and partially arranged on the side, close to the upper heat insulation module, of the gap. Wherein the embedded part, the apron board and the secondary corrugated plate are sequentially connected and define a sealing cavity, and the gap and the main corrugated plate are arranged on the inner side and the outer side of the sealing cavity respectively. The hot corner protection structure can solve the problem that in the prior art, the boundary position of a thin film enclosure system is prone to leakage.

Description

Technical Field

[0001] The present application relates to the technical field of film enclosure systems, and in particular, to a thermal corner protection structure and a film enclosure system. Background Art

[0002] During the transportation and storage of liquefied natural gas, professional liquefied natural gas storage tanks are required for storage. During this process, the liquefied natural gas storage tanks need to be equipped with professional enclosure structures to ensure a closed low-temperature environment inside the tank.

[0003] In the prior art, the enclosure structure of liquefied natural gas storage tanks is usually set as a film enclosure system, using a structure such as a stainless steel corrugated plate as a shielding layer to achieve closed enclosure. However, when the above-mentioned film enclosure system is used, there is a dividing line at a position five meters from the side wall of the enclosure system to the bottom of the tank. Among them, a single-layer shielding structure can be set in the area above five meters, while a double-layer shielding structure is required in the area below five meters.

[0004] When the film enclosure system is used, at the 5-meter dividing line, due to the different structures of the enclosure system, the enclosure system needs to be assembled separately, resulting in a relatively obvious gap structure at the dividing line. Not only is it easy to form a cold bridge structure with poor insulation performance at this location, but also it is easy to form a leakage channel at this location when the main shielding layer leaks, causing the low-temperature materials stored in the tank to damage the outer layer of the tank, thereby causing safety problems such as tank leakage. Summary of the invention

[0005] The purpose of the present application is to provide a thermal corner protection structure and a thin film enclosure system, wherein the thermal corner protection structure can solve the safety problem caused by leakage at the boundary line of the thin film enclosure system in the prior art.

[0006] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a thermal corner protection structure, which is arranged in the accommodating cavity formed by the outer tank body. The thermal corner protection structure includes an insulation module, a main corrugated plate and an embedded part. The insulation module is arranged on the inner wall of the outer tank body, and the insulation module includes an upper insulation module and a lower insulation module, and a gap is formed between the two. The main corrugated plate is arranged on the side of the insulation module away from the inner wall of the outer tank body, and the main corrugated plate covers the upper insulation module and the lower insulation module at the same time. The embedded part is fixed to the inner wall of the outer tank body, and is partially arranged on the side of the gap close to the upper insulation module. The secondary corrugated plate is arranged between the lower insulation module and the main corrugated plate. The skirt plate is connected between the embedded part and the secondary corrugated plate, and is partially arranged on the side of the gap close to the upper insulation module. Among them, the embedded part, the skirt plate and the secondary corrugated plate are connected in sequence and enclose a sealed cavity, and the gap and the main corrugated plate are separated on both sides of the sealed cavity.

[0007] Based on the above-mentioned embodiments of the present application, during the construction and assembly of the liquefied natural gas storage tank, according to the different pressure and temperature environments, a gap is formed at a position five meters away from the bottom of the tank, and the upper insulation module and the lower insulation module on the upper and lower sides of the gap are set with different structures, and are assembled separately in the specific assembly process. Specifically, the area above the gap is formed by the main corrugated plate to form a single-layer shielding structure, and the area below the gap is formed by the main corrugated plate and the secondary corrugated plate to form a double-layer shielding structure, so as to strengthen the enclosure of the lower area of ​​the outer tank body in a targeted manner. In this process, the embedded parts, skirt plates and secondary corrugated plates are connected in sequence to enclose a sealed cavity, and the gap and the main corrugated plate are separated on both sides of the sealed cavity. At this time, even if a leak occurs on the main corrugated plate, the enclosure structure composed of the embedded parts, skirt plates and secondary corrugated plates can also prevent the low-temperature material from flowing into the sealed cavity, thereby preventing the low-temperature material from flowing directly to the outer tank body through the gap, thereby reducing the possibility of the low-temperature material causing damage to the outer tank body when the main corrugated plate leaks to a certain extent. In summary, through the above-mentioned settings, while achieving targeted reinforcement of the bottom of the outer tank body, a retaining structure is formed between the gap and the main corrugated plate to prevent low-temperature materials from flowing directly to the outer tank body through the gap when the main corrugated plate leaks, thereby reducing the possibility of leakage of the liquefied natural gas storage tank and improving safety during use.

[0008] In some embodiments, the skirt board end portion is at least partially staggered with the embedded component, and the skirt board end portion is welded and fixed to the embedded component. The skirt board end portion is at least partially staggered with the secondary corrugated plate, and the skirt board end portion is welded and fixed to the secondary corrugated plate.

[0009] Based on the above-mentioned embodiments of the present application, the skirt plate and the embedded parts are connected by welding. On the one hand, sufficient connection strength is guaranteed, making the connection between the two more stable. On the other hand, compared with other connection methods, welding has better sealing performance, which can ensure the overall sealing performance of the sealing cavity and avoid leakage at the connection position between the two. At the same time, by arranging the skirt plate end and the embedded parts to be staggered, the contact area between the two is increased, so that the sealing effect of the connection position between the two can be further enhanced during welding. Similarly, the connection position between the skirt plate and the secondary corrugated plate is fixed by welding, which ensures the connection strength and improves the sealing effect. By arranging the skirt plate end and the secondary corrugated plate to be staggered, the sealing performance of the connection position between the two is further strengthened.

[0010] In some embodiments, the skirt plate is disposed on a side of the secondary corrugated plate close to the sealing cavity, and the skirt plate is disposed on a side of the embedded part away from the sealing cavity.

[0011] Based on the above-mentioned embodiments of the present application, during the assembly of the hot corner protection structure, the embedded parts need to be pre-embedded in the process of pouring the outer tank body, so the embedded parts have been pre-fixed. At this time, by setting the skirt plate on the side of the embedded part away from the sealing cavity, that is, the skirt plate is connected to the upper surface of the embedded part, the skirt plate can be supported during the assembly and welding process, thereby facilitating assembly. At the same time, after the end of the skirt plate is welded to the surface of the embedded part, the staggered position of the two can stably support the skirt plate, thereby improving the stability of the connection structure between the two. By setting the skirt plate on the side of the secondary corrugated plate close to the sealing cavity, that is, the skirt plate is closer to the inner wall of the outer tank body relative to the secondary corrugated plate, it is easy to assemble in sequence during assembly.

[0012] In some embodiments, the embedded part includes an embedded plate and a connecting plate. The embedded plate is fixed to the inner wall of the outer tank body. One end of the connecting plate is connected to the embedded plate, and the other end is welded and fixed to the skirt plate.

[0013] Based on the above-mentioned embodiments of the present application, a specific structure of an embedded part is provided. Among them, the embedded plate is pre-embedded in the outer tank body to increase the contact area between the embedded part and the outer tank body, ensure the connection strength between the embedded part and the outer tank body, and the connecting plate extends into the accommodating cavity and is welded and fixed to the skirt plate. At this time, the embedded part is set as a structure with a vertical cross-section of T, and in the actual production and processing process, the embedded plate and the connecting plate can be set as a whole, which is convenient for production and processing while improving the connection strength.

[0014] In some embodiments, the connecting plate is radially arranged in the gap along the accommodating cavity, and the connecting plate is arranged along the upper edge of the gap.

[0015] Based on the above-mentioned embodiments of the present application, when the embedded parts are arranged, the embedded plates are used to be fixed to the inner wall of the outer tank, and the connecting plates are arranged in the gap to be connected to the skirt plate. By arranging the edge of the connecting plate along the upper edge of the gap, the embedded parts can completely include the gap when they cooperate with the skirt plate and the secondary corrugated plate to form a sealed cavity, thereby improving the sealing effect.

[0016] In some embodiments, longitudinal corrugations are arranged on the secondary corrugated plate along the axial direction of the accommodation cavity, and an end cap is formed at one end of the longitudinal corrugation close to the skirt plate, and the end cap is welded and fixed to the skirt plate.

[0017] Based on the above-mentioned embodiments of the present application, the secondary corrugated plate can leave a certain deformation margin in the horizontal direction by forming longitudinal corrugations, thereby coping with the situation that the secondary corrugated plate deforms due to temperature changes. By forming end caps at the ends of the longitudinal corrugations, the end of the longitudinal corrugations close to the skirt board can be closed, thereby further improving the sealing effect of the connection between the secondary corrugated plate and the skirt board.

[0018] In some embodiments, the upper insulation module includes an upper insulation layer disposed between the primary corrugated plate and the inner wall of the outer tank body. The lower insulation module also includes a lower insulation layer disposed between the secondary corrugated plate and the inner wall of the outer tank body.

[0019] Based on the above-mentioned embodiments of the present application, the upper insulation layer disposed between the main corrugated plate and the outer tank body can, on the one hand, strengthen the insulation effect between the main corrugated plate and the outer tank body, reduce the heat conduction efficiency between the two, and ensure the low temperature environment inside the liquefied natural gas storage tank. On the other hand, it can also be used as a filler to be filled between the main corrugated plate and the outer tank body, which can not only provide a certain support effect for the main corrugated plate, but also improve the overall sealing effect of the upper insulation module to a certain extent. Similarly, the lower insulation layer is disposed between the secondary corrugated plate and the inner wall of the outer tank body to strengthen the insulation effect and ensure the low temperature environment at the bottom of the liquefied natural gas storage tank. At the same time, it provides a certain support effect for the secondary corrugated plate and strengthens the sealing effect.

[0020] In some embodiments, a first plywood is disposed on both sides of the upper insulation layer facing toward and away from the outer tank body, and the upper insulation layer is fixed to the first plywood to form an upper insulation module. A second plywood is disposed on both sides of the lower insulation layer facing toward and away from the outer tank body, and the lower insulation layer is fixedly connected to the second plywood to form a lower insulation module. A third plywood is disposed between the secondary corrugated board and the primary corrugated board, and the secondary corrugated board, the third plywood and the primary corrugated board are anchored and connected in sequence.

[0021] Based on the above-mentioned embodiments of the present application, the arrangement of the first plywood, the second plywood and the third plywood can enhance the supporting effect of the corresponding connection structure. At the same time, the arrangement of the plywood can facilitate the fixation between the various parts, including the anchoring fixation of the primary corrugated plate and the secondary corrugated plate, and the anchoring fixation between the insulation module and the inner wall of the outer tank, which can provide a force point during fixation and ensure the stability of fixation.

[0022] In some embodiments, an anchoring strip is further provided between the secondary corrugated board and the adjacent second plywood board, the skirt board is fixed to the anchoring strip by welding, and the second plywood board is connected to the anchoring strip by anchoring.

[0023] Based on the above-mentioned embodiments of the present application, during the assembly of the hot corner protection structure, the components are assembled one by one from the side close to the inner wall of the outer tank. At this time, after the secondary insulation layer and the second plywood are assembled, the anchoring strip is fixed to the adjacent second plywood by anchoring or other means, thereby providing a welding foundation for the skirt board. Furthermore, an anchoring foundation is provided when the secondary corrugated board and the primary corrugated board and other structures are assembled.

[0024] According to a second aspect of the present application, a film enclosure system is provided, which includes an outer tank body and the above-mentioned thermal corner protection structure, and the thermal corner protection structure is arranged in a containing cavity formed by the outer tank body.

[0025] Based on the above-mentioned embodiments of the present application, the film enclosure system provided by the present application includes the above-mentioned thermal corner protection structure, and therefore also has the above-mentioned beneficial effects. In order to avoid repetition, it will not be described here.

[0026] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present application but do not constitute a limitation to the present application. In the accompanying drawings: Figure 1 It is a cross-sectional schematic diagram of the hot corner protection structure provided in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0029] Figure 3 It is a cross-sectional schematic diagram of the gap and the lower insulation module in the thermal corner protection structure provided in an embodiment of the present application.

[0030] Figure 4 yes Figure 3 Schematic diagram of the enlarged portion B.

[0031] Figure 5 It is a partial plan view of the hot corner protection structure provided in an embodiment of the present application.

[0032] 1. Upper insulation module; 11. Upper insulation layer; 12. First plywood; 2. Lower insulation module; 21. Lower insulation layer; 22. Second plywood; 23. Third plywood; 24. Anchor strip; 3. Gap; 31. Resin putty; 32. Horizontal plywood; 4. Primary corrugated board; 5. Embedded parts; 51. Embedded board; 52. Connecting board; 6. Secondary corrugated board; 61. Longitudinal corrugation; 62. Transverse corrugation; 63. End cap; 7. Skirt board; 8. Sealed cavity; 9. Outer tank body. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of this application, it should be noted that, in the absence of any contrary explanation, the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the prior art, the enclosure structure of liquefied natural gas (LNG) storage tanks is usually set as a film enclosure system, using a structure such as a stainless steel corrugated plate as a shielding layer to achieve closed enclosure. However, when the above-mentioned film enclosure system is used, there is a dividing line at a position five meters from the side wall of the enclosure system to the bottom of the tank. Among them, a single-layer shielding structure can be set in the area above five meters, while a double-layer shielding structure is required in the area below five meters.

[0040] When the film enclosure system is used, at the 5-meter dividing line, due to the different structures of the enclosure system, the enclosure system needs to be assembled separately, resulting in a relatively obvious gap structure at the dividing line. Not only is it easy to form a cold bridge structure with poor insulation performance at this location, but also it is easy to form a leakage channel at this location when the main shielding layer leaks, causing the low-temperature materials stored in the tank to damage the outer layer of the tank, thereby causing safety problems such as tank leakage.

[0041] In order to solve the above problems in the prior art, according to the first aspect of the present application, an embodiment of the present application provides a thermal corner protection structure, which is arranged in the accommodation cavity formed by the outer tank body 9. Figures 1 to 4 As shown in , the thermal corner protection structure includes an insulation module, a main corrugated plate 4 and an embedded part 5. The insulation module is arranged on the inner wall of the outer tank body 9, and the insulation module includes an upper insulation module 1 and a lower insulation module 2, and a gap 3 is formed between the two. The main corrugated plate 4 is arranged on the side of the insulation module away from the inner wall of the outer tank body 9, and the main corrugated plate 4 covers the upper insulation module 1 and the lower insulation module 2 at the same time. The embedded part 5 is fixed to the inner wall of the outer tank body 9, and is partially arranged on the side of the gap 3 close to the upper insulation module 1. The secondary corrugated plate 6 is arranged between the lower insulation module 2 and the main corrugated plate 4. The skirt plate 7 is connected between the embedded part 5 and the secondary corrugated plate 6, and is partially arranged on the side of the gap 3 close to the upper insulation module 1. Among them, the embedded part 5, the skirt plate 7 and the secondary corrugated plate 6 are connected in sequence and enclose a sealed cavity 8, and the gap 3 and the main corrugated plate 4 are separated on the inside and outside sides of the sealed cavity 8.

[0042] Based on the above-mentioned embodiments of the present application, during the construction and assembly of the liquefied natural gas storage tank, according to the different pressure and temperature environments, a gap 3 is formed at a position five meters away from the bottom of the tank, and the upper insulation module 1 and the lower insulation module 2 on the upper and lower sides of the gap 3 are set with different structures, and are assembled separately during the specific assembly process. Specifically, the area above the gap 3 is formed with a single-layer shielding structure through the main corrugated plate 4, and the area below the gap 3 is formed with a double-layer shielding structure through the cooperation of the main corrugated plate 4 and the secondary corrugated plate 6, so as to strengthen the enclosure of the lower area of ​​the outer tank body 9 in a targeted manner.

[0043] In this process, the embedded parts 5, skirt plate 7 and secondary corrugated plate 6 are connected in sequence to enclose a sealed cavity 8, and the gap 3 and the main corrugated plate 4 are separated on both sides of the sealed cavity 8. At this time, even if leakage occurs on the main corrugated plate 4, the enclosure structure composed of the embedded parts 5, skirt plate 7 and secondary corrugated plate 6 can prevent the low-temperature material from flowing into the sealed cavity 8, thereby preventing the low-temperature material from flowing directly to the outer tank body 9 through the gap 3, thereby reducing the possibility of the low-temperature material damaging the outer tank body 9 when the main corrugated plate 4 leaks.

[0044] In summary, through the above-mentioned arrangement, the bottom of the outer tank body 9 is strengthened in a targeted manner, and a retaining structure is formed between the gap 3 and the main corrugated plate 4 to prevent the low-temperature material from flowing directly to the outer tank body 9 through the gap 3 when the main corrugated plate 4 leaks, thereby reducing the possibility of leakage of the liquefied natural gas storage tank and improving safety during use.

[0045] Specifically, when the liquefied natural gas storage tank is used, the outer tank body 9 is usually formed into a cylindrical tank structure by pouring concrete, and the bottom and top of the tank body also need to be sealed. When the main corrugated plate 4 leaks, the liquefied natural gas in the tank will leak from the main corrugated plate 4 to the outer tank body 9. In the absence of a thermal corner protection structure, the liquefied natural gas will leak inward from the main corrugated plate 4, and then leak from the gap 3 to the outer tank body 9, thereby damaging the outer tank body 9 of the concrete structure, causing leakage of the liquefied natural gas storage tank.

[0046] Through the above-mentioned arrangement of the present application, when the main corrugated plate 4 leaks, the liquefied natural gas leaks in from the main corrugated plate 4, and is then blocked outside the sealed cavity 8 by the enclosure structure composed of the embedded parts 5, the skirt plate 7 and the secondary corrugated plate 6, thereby separating the leaked liquefied natural gas and the gap 3, thereby reducing the possibility of the liquefied natural gas leaking from the gap 3 to the outer tank body 9 and causing damage to the outer tank body 9, thereby reducing the possibility of leakage of the liquefied natural gas.

[0047] In addition, it should be noted that in the actual production and assembly process, in order to ensure the strength of the gap 3 and avoid convection of cold and hot air flows at the gap 3, the gap 3 can be filled with materials such as glass wool. The specific selection can be made based on actual conditions, and this application does not impose any specific restrictions on this.

[0048] In the present application, any suitable connection method can be selected between the skirt plate 7 and the embedded part 5 and between the skirt plate 7 and the secondary corrugated plate 6 .

[0049] refer to Figure 3 and Figure 4 As shown in, in an exemplary embodiment provided by the present application, the end of the skirt plate 7 can be at least partially staggered with the embedded part 5, and the end of the skirt plate 7 and the embedded part 5 can be welded and fixed. The end of the skirt plate 7 can be at least partially staggered with the secondary corrugated plate 6, and the end of the skirt plate 7 and the secondary corrugated plate 6 can be welded and fixed.

[0050] Based on the above-mentioned embodiments of the present application, the skirt plate 7 and the embedded part 5 are connected by welding. On the one hand, sufficient connection strength is guaranteed, making the connection between the two more stable. On the other hand, compared with other connection methods, welding has better sealing performance, which can ensure the overall sealing performance of the sealing cavity 8 and avoid leakage at the connection position between the two. At the same time, by arranging the end of the skirt plate 7 and the embedded part 5 to be partially staggered, the contact area between the two is increased, so that the sealing effect of the connection position between the two can be further enhanced during welding. Similarly, the connection position between the skirt plate 7 and the secondary corrugated plate 6 is fixed by welding, which ensures the connection strength and improves the sealing effect. By arranging the end of the skirt plate 7 and the secondary corrugated plate 6 to be partially staggered, the sealing performance of the connection position between the two is further strengthened.

[0051] Specifically, when the skirt board 7 is welded to the embedded parts 5 and the secondary corrugated plate 6 at both ends, in order to improve the sealing effect and strengthen the connection strength at the connection position, sealants or gaskets can be respectively arranged at the connection positions at both ends of the skirt board 7 to strengthen the sealing effect. For example, at the connection position between the skirt board 7 and the embedded parts 5, sealants are applied or gaskets are arranged between the staggered positions of the two to strengthen the sealing effect. Similarly, sealants or gaskets can be arranged at the staggered positions of the skirt board 7 and the secondary corrugated plate 6 to strengthen the sealing effect.

[0052] Further, refer to Figure 3 and Figure 4 As shown in , in some embodiments of the present application, the skirt plate 7 is arranged on a side of the secondary corrugated plate 6 close to the sealing cavity 8, and the skirt plate 7 is arranged on a side of the embedded part 5 away from the sealing cavity 8.

[0053] Based on the above-mentioned embodiments of the present application, during the assembly of the hot corner protection structure, the embedded parts 5 need to be pre-embedded in the process of pouring the outer tank body 9, so the embedded parts 5 have been pre-fixed. At this time, by setting the skirt plate 7 on the side of the embedded part 5 away from the sealing cavity 8, that is, the skirt plate 7 is connected to the upper surface of the embedded part 5, the skirt plate 7 can be supported during the assembly and welding process, so as to facilitate assembly. At the same time, after the end of the skirt plate 7 is welded to the surface of the embedded part 5, the staggered position of the two can stably support the skirt plate 7, thereby improving the stability of the connection structure between the two. By setting the skirt plate 7 on the side of the secondary corrugated plate 6 close to the sealing cavity 8, that is, the skirt plate 7 is closer to the inner wall of the outer tank body 9 relative to the secondary corrugated plate 6, it is easy to assemble in sequence during assembly.

[0054] In the present application, the embedded part 5 can be set to any suitable structure.

[0055] refer to Figure 3As shown in, in an exemplary embodiment provided in the present application, the embedded part 5 may include an embedded plate 51 and a connecting plate 52, the embedded plate 51 is fixed to the inner wall of the outer tank body 9, one end of the connecting plate 52 is connected to the embedded plate 51, and the other end is welded and fixed to the skirt plate 7.

[0056] Based on the above-mentioned embodiments of the present application, a specific structure of an embedded part 5 is provided. Among them, the embedded plate 51 is pre-embedded in the outer tank body 9 to increase the contact area between the embedded part 5 and the outer tank body 9, and ensure the connection strength between the embedded part 5 and the outer tank body 9. The connecting plate 52 extends into the accommodating cavity and is welded and fixed to the skirt plate 7. At this time, the embedded part 5 is set as a structure with a vertical cross-section of T. In the actual production and processing process, the embedded plate 51 and the connecting plate 52 can be set as a whole, which is convenient for production and processing while improving the connection strength.

[0057] Specifically, one end of the embedded part 5 is fixed to the outer tank body 9, and the other end is connected to other structures for pulling and fixing. In this process, by setting the embedded plate 51, the contact area with the outer tank body 9 is increased, thereby reducing the force per unit area of ​​the embedded plate 51. At the same time, at the contact position between the embedded plate 51 and the connecting plate 52, it can be strengthened by setting reinforcing ribs, etc., which can be selected according to actual conditions, and this application does not make specific restrictions on this.

[0058] Further, refer to Figure 3 As shown in , in some embodiments of the present application, the connecting plate 52 is radially arranged in the gap 3 along the accommodating cavity, and the connecting plate 52 is arranged along the upper edge of the gap 3.

[0059] Based on the above-mentioned embodiment of the present application, when the embedded part 5 is provided, the embedded plate 51 is used to be fixed to the inner wall of the outer tank body 9, and the connecting plate 52 is provided in the gap 3 to be connected to the skirt plate 7. By providing the edge of the connecting plate 52 along the upper edge of the gap 3, the embedded part 5 can completely include the gap 3 when the skirt plate 7 and the secondary corrugated plate 6 form the sealing cavity 8, thereby improving the sealing effect.

[0060] refer to Figures 3 to 5 As shown in , in some embodiments of the present application, a longitudinal corrugation 61 is provided on the secondary corrugated plate 6 along the axial direction of the accommodating cavity, an end cap 63 is formed at one end of the longitudinal corrugation 61 close to the skirt plate 7, and the end cap 63 is welded and fixed to the skirt plate 7.

[0061] Based on the above-mentioned embodiment of the present application, the secondary corrugated plate 6 can leave a certain deformation margin in the horizontal direction by forming the longitudinal corrugations 61, thereby coping with the deformation of the secondary corrugated plate 6 due to temperature changes. By forming an end cap 63 at the end of the longitudinal corrugation 61, the end of the longitudinal corrugation 61 close to the skirt board 7 can be closed, thereby further improving the sealing effect of the connection position between the secondary corrugated plate 6 and the skirt board 7.

[0062] Specifically, in the actual production process, since the interior of the liquefied natural gas storage tank needs to maintain a low temperature environment, the primary corrugated plate 4 and the secondary corrugated plate 6 and other structures will shrink and deform due to the low temperature environment during use. By forming corrugations on the plate body, a certain amount of deformation margin can be reserved for the plate body, thereby avoiding the possibility of damage to the plate body due to low temperature deformation to a certain extent.

[0063] In the specific production and processing process, taking the secondary corrugated plate 6 as an example, since the deformation of the plate body is usually relatively uniform in all directions, when setting, the transverse corrugations 62 and the longitudinal corrugations 61 can be simultaneously set on the secondary corrugated plate 6 to cope with the different deformation conditions of the secondary corrugated plate 6 in the transverse and longitudinal directions at low temperatures. Similarly, the primary corrugated plate 4 can also be provided with corrugations to cope with the plate body shrinkage problem under low temperature conditions.

[0064] refer to Figures 1 to 3 As shown in , in some embodiments of the present application, the upper insulation module 1 may further include an upper insulation layer 11, which is disposed between the primary corrugated plate 4 and the inner wall of the outer tank body 9. The lower insulation module 2 may further include a lower insulation layer 21, which is disposed between the secondary corrugated plate 6 and the inner wall of the outer tank body 9.

[0065] Based on the above-mentioned embodiments of the present application, the upper insulation layer 11 disposed between the main corrugated plate 4 and the outer tank body 9 can, on the one hand, strengthen the insulation effect between the main corrugated plate 4 and the outer tank body 9, reduce the heat conduction efficiency between the two, and ensure the low temperature environment inside the liquefied natural gas storage tank. On the other hand, it can also be used as a filler to be filled between the main corrugated plate 4 and the outer tank body 9, which can not only play a certain supporting effect on the main corrugated plate 4, but also improve the overall sealing effect of the upper insulation module 1 to a certain extent. Similarly, the lower insulation layer 21 is disposed between the secondary corrugated plate 6 and the inner wall of the outer tank body 9 to strengthen the insulation effect and ensure the low temperature environment at the bottom of the liquefied natural gas storage tank. At the same time, it plays a certain supporting effect on the secondary corrugated plate 6 and strengthens the sealing effect.

[0066] Specifically, in actual use, any suitable material can be selected for the upper insulation layer 11 and the lower insulation layer 21. For example, the upper insulation layer 11 and the lower insulation layer 21 are both made of polyurethane, and the high density and high strength of polyurethane are utilized to achieve a good insulation effect from the main corrugated plate 4 to the inner wall of the outer tank body 9.

[0067] refer to Figures 1 to 4As shown in , in some embodiments of the present application, the upper insulation layer 11 is provided with a first plywood 12 on both sides facing and away from the outer tank body 9, and the upper insulation layer 11 is fixed to the first plywood 12 to form an upper insulation module 1. The lower insulation layer 21 is provided with a second plywood 22 on both sides facing and away from the outer tank body 9, and the lower insulation layer 21 is fixedly connected to the second plywood 22 to form a lower insulation module 2. A third plywood 23 is provided between the secondary corrugated board 6 and the primary corrugated board 4, and the secondary corrugated board 6, the third plywood 23 and the primary corrugated board 4 are anchored and connected in sequence.

[0068] Based on the above-mentioned embodiment of the present application, the arrangement of the first plywood 12, the second plywood 22 and the third plywood 23 can enhance the supporting effect of the corresponding connection structure. At the same time, the arrangement of the plywood can facilitate the fixation between the various parts, including the anchoring fixation of the primary corrugated board 4 and the secondary corrugated board 6, and the anchoring fixation between the insulation module and the inner wall of the outer tank body 9, which can provide a force point during fixation and ensure the stability of fixation.

[0069] Furthermore, in some embodiments of the present application, an anchoring strip 24 is provided between the secondary corrugated board 6 and the adjacent second plywood board 22 , the skirt board 7 is welded and fixed to the anchoring strip 24 , and the second plywood board 22 is anchored and connected to the anchoring strip 24 .

[0070] Based on the above-mentioned embodiment of the present application, during the assembly of the hot corner protection structure, the components are assembled one by one from the side close to the inner wall of the outer tank body 9. At this time, after the secondary insulation layer and the second plywood 22 are assembled, the anchoring strip 24 is fixed to the adjacent second plywood 22 by anchoring or other means, thereby providing a welding basis for the skirt board 7. Furthermore, an anchoring basis is provided when the secondary corrugated board 6 and the primary corrugated board 4 and other structures are assembled.

[0071] Specifically, refer to Figures 1 to 5 As shown in , when the hot corner protection structure is assembled, the embedded parts 5 are first pre-embedded on the inner wall of the outer tank body 9. At the same time, the upper insulation layer 11 and the first plywood 12 on both sides are pre-processed and formed, and the first plywood 12 is respectively fixed on both sides of the upper insulation layer 11 by gluing or other methods. Similarly, the lower insulation layer 21 and the second plywood 22 on both sides are pre-fixed and formed. Subsequently, the overall structure composed of the lower insulation layer 21 and the second plywood 22 is first fixed to the inner wall of the outer tank body 9 by anchoring with anchor rods or other methods, and the anchor bar 24 is fixed to the outer side of the second plywood 22 by anchoring or other methods. At this time, one end of the skirt panel 7 is first welded and fixed to the embedded plate 51, and then the other end of the skirt panel 7 is welded and fixed to the anchor bar 24. Then, the secondary corrugated plate 6 is installed, and the secondary corrugated plate 6 is fixed to the anchor bar 24 by anchoring or the like, and the end of the secondary corrugated plate 6 is welded and fixed to the skirt plate 7, and finally the third plywood 23 is fixed to the outside of the secondary corrugated plate 6 by anchoring. At this point, the lower insulation module 2 is completely assembled.

[0072] Subsequently, the overall structure consisting of the upper insulation layer 11 and the first plywood 12 is fixed to the inner wall of the outer tank 9 by anchoring, etc., so as to fix the upper insulation module 1. Finally, the main corrugated plate 4 is respectively covered with the upper insulation module 1 and the lower insulation module 2, and the main corrugated plate 4 is respectively fixed to the adjacent first plywood 12 and the third plywood 23 by anchoring.

[0073] In addition, it should be noted that in the present application, when the skirt board 7 is assembled and fixed, in order to facilitate stable support of the skirt board 7 during the fixing process, a filling support such as resin putty 31 can be arranged between the skirt board 7 and the lower insulation layer 21. At the same time, a horizontal plywood 32 can be arranged between the resin putty 31 and the skirt board 7 to ensure the balance when supporting the skirt board 7.

[0074] According to a second aspect of the present application, a thin film enclosure system is provided, which includes an outer tank body 9 and the above-mentioned thermal corner protection structure, and the thermal corner protection structure is arranged in a containing cavity formed by the outer tank body 9.

[0075] Based on the above-mentioned embodiments of the present application, the film enclosure system provided by the present application includes the above-mentioned thermal corner protection structure, and therefore also has the above-mentioned beneficial effects. In order to avoid repetition, it will not be described here.

[0076] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0077] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0078] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A hot corner protection structure, arranged in a receiving cavity formed by an outer tank body, characterized in that: The thermal corner protection structure comprises: The insulation module is arranged on the inner wall of the outer tank, and the insulation module includes an upper insulation module and a lower insulation module, and a gap is formed between the two; A main corrugated plate is arranged on a side of the insulation module away from the inner wall of the outer tank, and the main corrugated plate covers both the upper insulation module and the lower insulation module; An embedded part is fixed to the inner wall of the outer tank and is partially arranged on a side of the gap close to the upper insulation module; A secondary corrugated plate, disposed between the lower insulation module and the primary corrugated plate; A skirt plate connected between the embedded part and the secondary corrugated plate, and partially disposed on a side of the gap close to the upper insulation module; The embedded parts, the skirt plate and the secondary corrugated plate are sequentially connected to enclose a sealed cavity, and the gap and the primary corrugated plate are separated at the inner and outer sides of the sealed cavity.

2. The thermal corner protection structure according to claim 1, characterized in that: The end of the skirt plate is at least partially interlaced with the embedded part, and the end of the skirt plate is welded and fixed to the embedded part; The end portion of the skirt plate is at least partially staggered with the secondary corrugated plate, and the end portion of the skirt plate is welded and fixed to the secondary corrugated plate.

3. The thermal corner protection structure according to claim 2, characterized in that: The skirt plate is arranged on a side of the secondary corrugated plate close to the sealing cavity, and the skirt plate is arranged on a side of the embedded part away from the sealing cavity.

4. The thermal corner protection structure according to any one of claims 1 to 3, characterized in that: The embedded part comprises an embedded plate and a connecting plate. The embedded plate is fixed to the inner wall of the outer tank body. One end of the connecting plate is connected to the embedded plate, and the other end is welded and fixed to the skirt plate.

5. The thermal corner protection structure according to claim 4, characterized in that: The connecting plate is radially arranged in the gap along the accommodating cavity, and the connecting plate is arranged along the upper edge of the gap.

6. The thermal corner protection structure according to claim 1, characterized in that: The secondary corrugated plate is provided with longitudinal corrugations along the axial direction of the accommodation cavity, and an end cap is formed at one end of the longitudinal corrugations close to the skirt plate, and the end cap is welded and fixed to the skirt plate.

7. The thermal corner protection structure according to claim 1, characterized in that: The upper insulation module comprises an upper insulation layer, and the upper insulation layer is arranged between the main corrugated plate and the inner wall of the outer tank body; The lower insulation module further includes a lower insulation layer, and the lower insulation layer is arranged between the secondary corrugated plate and the inner wall of the outer tank.

8. The thermal corner protection structure according to claim 7, characterized in that: First plywood is provided on both sides of the upper insulation layer facing toward and away from the outer tank body, and the upper insulation layer is fixed to the first plywood to form the upper insulation module; The lower insulation layer is provided with second plywood on both sides facing and away from the outer tank body, and the lower insulation layer is fixedly connected to the second plywood to form the lower insulation module; A third plywood is arranged between the secondary corrugated board and the primary corrugated board, and the secondary corrugated board, the third plywood and the primary corrugated board are anchored and connected in sequence.

9. The thermal corner protection structure according to claim 8, characterized in that: An anchoring strip is further arranged between the secondary corrugated board and the adjacent second plywood board, the skirt board is fixed to the anchoring strip by welding, and the second plywood board is anchored to the anchoring strip.

10. A membrane enclosure system, characterized in that: The membrane enclosure system comprises: The outer tank; and, The thermal corner protection structure according to any one of claims 1 to 9, wherein the thermal corner protection structure is arranged in a receiving cavity formed by the outer tank body.

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