Film liquid cargo tank and LNG ship

Abstract

The invention relates to the technical field of liquefied natural gas storage and transportation, and provides a film liquid cargo tank and an LNG ship. The thin film liquid cargo tank comprises a main shield, a supporting piece and an insulating part. The main shield comprises a plurality of standard components which are bonded in sequence, one side of each standard component is provided with at least two protruding grooves, the protruding grooves are arranged in a staggered mode, and gaps are formed between the ends of the protruding grooves and the edges of the standard components; the supporting piece is arranged on the other side of the standard piece and used for supporting the main shield; the insulating part is arranged on one side of the support member away from the main shield. The problems that in the prior art, standard parts of the thin film liquid cargo tank need to be manually aligned to be welded, the welding difficulty is large, and the construction time is long are solved, the standard part capable of being bonded is achieved, then continuous operation can be achieved, and the installation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquefied natural gas storage and transportation, and in particular to a membrane liquid cargo tank and an LNG ship. Background Art

[0002] LNG (Liquefied Natural Gas) ships, full name liquefied natural gas carriers, are ships specially designed to transport liquefied natural gas. Liquefied natural gas is a liquid form formed by cooling natural gas to about -162 degrees Celsius under normal pressure, which makes it possible to transport it efficiently over long distances by ship.

[0003] Membrane cargo tanks are a type of cargo storage system used on LNG carriers and other liquefied gas carriers. This type of tank design uses membrane technology, which allows one or more layers of special material membranes to be installed directly inside the ship structure to isolate and protect liquefied natural gas or other cryogenic liquefied gases. The main shield of existing membrane cargo tanks requires manual alignment and welding of each piece, which is difficult to weld and takes a long time to construct. Summary of the invention

[0004] The present invention provides a membrane liquid cargo tank and an LNG ship, which are used to solve the problem that standard parts of the membrane liquid cargo tank in the prior art need to be manually aligned and welded, which is difficult to weld and takes a long time to construct, and realize a standard part that can be bonded, thereby enabling continuous operation and improving installation convenience.

[0005] The present invention provides a membrane liquid cargo tank, comprising: The main shield comprises a plurality of standard parts bonded in sequence, wherein at least two raised grooves are provided on one side of the standard part, the raised grooves are arranged alternately, and there is a gap between the end of the raised groove and the edge of the standard part; A support member, provided on the other side of the standard member, for supporting the main shield; The insulating component is arranged on a side of the support member away from the main shielding.

[0006] According to a membrane liquid cargo tank provided by the present invention, the raised grooves are symmetrically distributed in the center of the standard component.

[0007] According to a membrane liquid cargo tank provided by the present invention, a first lap edge is provided on a first side of the standard component, a second lap edge is provided on a second side of the standard component, and the first side and the second side are two sides opposite to each other; One of the first lap edge and the second lap edge extends from the upper surface of the standard component to the middle of the standard component along the height direction of the standard component; The other of the first overlapping edge and the second overlapping edge extends from the lower surface of the standard component to the middle of the standard component along the height direction of the standard component.

[0008] According to a membrane liquid cargo tank provided by the present invention, a third lap edge is provided on a third side of the standard component, a fourth lap edge is provided on a fourth side of the standard component, and the third side and the fourth side are other two sides opposite to each other; One of the third lap edge and the fourth lap edge extends from the upper surface of the standard component to the middle of the standard component along the height direction of the standard component; The other of the third overlapping edge and the fourth overlapping edge extends from the lower surface of the standard component to the middle of the standard component along the height direction of the standard component.

[0009] According to a membrane liquid cargo tank provided by the present invention, the staggered arrangement of the raised grooves is at least any one of a cross, an X-shaped cross, and a horizontal and vertical staggered arrangement, or a combination of several of them.

[0010] According to a membrane liquid cargo tank provided by the present invention, the support member comprises a support body, a support portion adapted to the protruding groove is provided on a side of the support body facing the standard member, and the support portion is arranged in a one-to-one correspondence with the protruding groove.

[0011] According to a membrane liquid cargo tank provided by the present invention, the insulating component comprises a secondary shield, both sides of the secondary shield are provided with insulating layers, and the supporting member is connected to one of the two insulating layers.

[0012] According to a membrane liquid cargo tank provided by the present invention, the insulation layer comprises a plurality of insulation modules, the plurality of insulation modules are arranged at intervals, and a filler is provided between two adjacent insulation modules.

[0013] According to a membrane liquid cargo tank provided by the present invention, the insulation module is provided with connectors, part of the connectors are connected to the secondary shielding, and the rest of the connectors are connected to the supporting member.

[0014] The present invention also provides an LNG ship, comprising the membrane liquid cargo tank as described in any one of the above embodiments.

[0015] The standard parts of the present invention are made of composite materials, which can be bonded and then installed continuously, thereby improving the convenience of installation. Secondly, the raised grooves are arranged in a staggered manner, so that gaps in different directions can be achieved on a standard part, which can not only adapt to thermal expansion and contraction in multiple directions, but also ensure that the structures of all standard parts remain consistent. Through this design, it is no longer necessary to design two different types of standard parts to adapt to thermal expansion and contraction in different directions, thereby simplifying the manufacturing process, reducing production costs, and improving the convenience of installation.

[0016] The LNG ship provided by the present invention also has the above advantages because it includes the above membrane liquid cargo tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a cross-sectional view of the wall of the membrane liquid cargo tank provided by the present invention.

[0019] Figure 2 It is a structural schematic diagram of the main shielding of the membrane liquid cargo tank provided by the present invention.

[0020] Figure 3 It is a top view of the standard parts of the membrane liquid cargo tank provided by the present invention.

[0021] Figure 4 It is a front view of a standard component of a membrane liquid cargo tank provided by the present invention.

[0022] Figure 5 It is a schematic structural diagram of a support member of a membrane liquid cargo tank provided by the present invention.

[0023] Reference numerals: 100: main shield; 110: standard part; 111: first overlap; 112: second overlap; 113: third overlap; 114: fourth overlap; 120: raised groove; 200: support member; 210: support body; 220: support portion; 300: insulation component; 310: insulation module; 320: secondary shielding; 330: filler; 400: Inner hull surface; 500: Connectors. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0029] Combine the following Figure 1-Figure 5 The structure and working principle of the present invention are described.

[0030] Reference Figure 1 and Figure 2 A membrane liquid cargo tank provided by the present invention comprises a main shield 100, a support member 200 and an insulating component 300. The main shield 100 comprises a plurality of standard members 110 connected in sequence, at least two protruding grooves 120 are arranged on one side of the standard member 110, and there is a gap between the end of the protruding groove 120 and the edge of the standard member 110, and the protruding grooves 120 are arranged alternately; the support member 200 is arranged on the other side of the standard member 110, and is used to support the main shield 100; specifically, the main shield 100 and the support member 200 can be connected by bonding, wherein the bonding part avoids the standard member 110. The insulating component 300 is arranged on the side of the support member 200 away from the main shield 100.

[0031] The standard part 110 of the present invention is made of a composite material, which can be bonded and then installed continuously, thereby improving the convenience of installation. Secondly, the raised grooves 120 are arranged in a staggered manner, so that gaps in different directions can be achieved on a standard part 110, which can not only adapt to thermal expansion and contraction in multiple directions, but also ensure that the structure of all standard parts 110 remains consistent. Through this design, it is no longer necessary to design two different types of standard parts 110 to adapt to thermal expansion and contraction in different directions, thereby simplifying the manufacturing process, reducing production costs, and improving the convenience of installation.

[0032] The support member 200 is located on the other side of the standard member 110, and its function is to provide the necessary support to ensure that the main shield 100 can stably adapt to the stress caused by temperature changes while bearing internal and external pressures. The design of the support member 200 does not affect the thermal expansion and contraction characteristics of the main shield 100, while ensuring the strength and stability of the overall structure. One of the functions of the insulating component 300 is to maintain the stability of the internal environment of the liquid cargo tank and reduce the transfer of external heat to the liquid cargo, which is crucial to maintaining the quality of the transport medium. Even in the case of temperature fluctuations, since the main shield 100 is designed to cope with the effects of thermal expansion and contraction, the insulating component 300 can still effectively play a heat-insulating role and ensure the working performance of the liquid cargo tank.

[0033] Reference Figure 2 In some embodiments of the present invention, the raised grooves 120 are symmetrically arranged in the center of the standard part 110. Specifically, the standard part 110 is a rectangular parallelepiped structure. When there are two raised grooves 120, the staggered arrangement of the raised grooves 120 is at least one or a combination of a cross, an X-shaped cross, and a horizontal and vertical staggered. The cross-sectional shape of the raised grooves 120 can be a semicircular arch, a square, a triangle, a polygon, etc.

[0034] In the above structure, it can be ensured that each standard component 110 can consistently respond to the expansion and contraction caused by temperature changes, avoiding the problem of stress concentration in the edge area. The symmetrically arranged raised grooves 120 provide deformation space in the central area of ​​the standard component 110, so that the thermal expansion and contraction effects can be balanced in all directions, thereby maintaining the overall stability and integrity of the structure.

[0035] In some possible embodiments, the protruding grooves 120 may be arranged in different areas according to the functional requirements of different areas of the standard part 110. For example, more or deeper protruding grooves 120 may be arranged in areas with greater stress, while the number or depth of the protruding grooves 120 may be reduced in relatively stable areas. In this way, the performance of each area may be optimized according to actual working conditions.

[0036] Reference Figure 3 and Figure 4 In some embodiments of the present invention, a first lap edge 111 is provided on a first side of the standard part 110, and a second lap edge 112 is provided on a second side of the standard part 110, and the first side and the second side are opposite to each other; one of the first lap edge 111 and the second lap edge 112 extends from the upper surface of the standard part 110 to the middle of the standard part 110 along the height direction of the standard part 110; the other of the first lap edge 111 and the second lap edge 112 extends from the lower surface of the standard part 110 to the middle of the standard part 110 along the height direction of the standard part 110.

[0037] A third lap edge 113 is provided on the third side of the standard part 110, and a fourth lap edge 114 is provided on the fourth side of the standard part 110. The third side and the fourth side are the other two sides opposite to each other; one of the third lap edge 113 and the fourth lap edge 114 extends from the upper surface of the standard part 110 to the middle of the standard part 110 along the height direction of the standard part 110; the other of the third lap edge 113 and the fourth lap edge 114 extends from the lower surface of the standard part 110 to the middle of the standard part 110 along the height direction of the standard part 110.

[0038] It should be noted that the standard component 110 is a rectangular parallelepiped or cube structure, and its first side may be the left side of the standard component 110, the second side may be the right side of the standard component 110, the third side may be the rear side of the standard component 110, and the fourth side may be the front side of the standard component 110. When connecting two connected standard components 110, the corresponding first overlap 111 and second overlap 112 may be bonded, and the remaining side surfaces are also connected by bonding.

[0039] In the above structure, in order to improve the connection strength and stability of the standard part 110 of the main shielding 100 of the membrane liquid cargo tank, and ensure the uniform adaptation of the thermal expansion and contraction effect, the standard part 110 can be designed as a rectangular parallelepiped structure, and a specific lap edge structure is arranged around it. Specifically, a first lap edge 111 is arranged on the first side of the standard part 110, and a second lap edge 112 is arranged on the second side, and these two sides are opposite to each other; wherein, one of the first lap edge 111 and the second lap edge 112 extends from the upper surface of the standard part 110 to the middle of the standard part 110 along the height direction of the standard part 110, and the other extends from the lower surface of the standard part 110 to the middle of the standard part 110. This symmetrical arrangement enables each standard part 110 to achieve balanced extension of the upper and lower surfaces in one direction, thereby enhancing the stability and anti-deformation ability of the connection part.

[0040] Similarly, the third side of the standard component 110 is provided with a third lap edge 113, and the fourth side is provided with a fourth lap edge 114, which are the other two sides opposite to each other; one of the third lap edge 113 and the fourth lap edge 114 also extends from the upper surface of the standard component 110 to the middle of the standard component 110 along the height direction of the standard component 110, and the other extends from the lower surface of the standard component 110 to the middle of the standard component 110. Such a design not only ensures that the lap edges of all four sides can provide a consistent support effect, but also further optimizes the stress distribution through the alternating extension of the upper and lower surfaces, and prevents the occurrence of local stress concentration.

[0041] When the ambient temperature changes, the standard part 110 will expand or contract accordingly according to the increase or decrease in temperature. Since the lap edges extend from the upper surface and the lower surface to the middle, this design allows the standard part 110 to expand and contract freely during temperature changes without affecting the tightness of the connection between adjacent standard parts 110. In addition, the alternating extension of the upper and lower surfaces also provides additional support points, enhancing the rigidity and durability of the overall structure. Even under extreme temperature conditions, the standard part 110 can still maintain its shape and functional integrity, ensuring the safe operation of the cargo tank.

[0042] In some possible embodiments, the first overlap edge 111 and the second overlap edge 112 may be spread along the side of the corresponding standard part 110, while the third overlap edge 113 and the fourth overlap edge 114 are arranged in the middle area of ​​the side of the standard part 110. In other possible embodiments, the first overlap edge 111 and the second overlap edge 112 may be arranged in the middle area of ​​the side of the standard part 110, while the third overlap edge 113 and the fourth overlap edge 114 are spread along the side of the corresponding standard part 110. In still other possible embodiments, the first overlap edge 111, the second overlap edge 112, the third overlap edge 113 and the fourth overlap edge 114 are all arranged in the middle area of ​​the side of the standard part 110.

[0043] Reference Figure 5 In some embodiments of the present invention, the support member 200 includes a support body 210, and a support portion 220 matching the protruding groove 120 is provided on the side of the support body 210 facing the standard member 110, and the support portion 220 is arranged one-to-one with the protruding groove 120. It can be understood that the support member 200 and the main shield 100 have the same structure.

[0044] In the above structure, when the ambient temperature changes, the standard part 110 will expand or contract accordingly according to the increase or decrease in temperature. Since the support portion 220 is arranged in a one-to-one correspondence with the protruding groove 120, this arrangement allows each protruding groove 120 and its corresponding support portion 220 to adapt to deformation as a unit. The existence of the support portion 220 not only provides additional support for the protruding groove 120, but also reduces the relative displacement caused by thermal expansion and contraction through precise matching, thereby enhancing the stability and deformation resistance of the overall structure. In addition, the cooperation between the support portion 220 and the protruding groove 120 ensures that even under extreme temperature conditions, the connection between the standard part 110 and the support member 200 is still tight and will not loosen or misalign.

[0045] In addition, the use of the same structural design for the support member 200 as the main shield 100 simplifies the production process, reduces costs, and improves assembly efficiency. It is no longer necessary to design different molds for different types of components or to perform complex assembly processes. The unified design allows all components to be mass-produced and quickly installed, reducing the possibility of human error. At the same time, this consistency also facilitates maintenance and replacement, because any standard part 110 or support member 200 can be replaced with a spare part of the same specification without special customization.

[0046] In some possible embodiments, the main shield 100 may be made of metal-polymer composite materials, such as composite materials of aluminum or steel and high-performance polymers, or fiber-reinforced composite materials, such as carbon fiber or glass fiber reinforced plastics, or epoxy resin-based composite materials, and other new materials that meet low-temperature performance. The support member 200 may be made of memory alloy. In this way, the composite material used in the main shield 100 is more flexible than the alloy material in the prior art. The combination of composite materials and memory alloys can better play their respective functions.

[0047] Specifically, the support member 200 made of the memory alloy can be adjusted according to a preset shape when the ambient temperature changes, ensuring that the connection between the standard parts 110 is always tight and stable. Since the memory alloy has temperature adaptability, the support member 200 can automatically adjust its shape when the temperature rises or falls, thereby reducing the stress concentration problem caused by temperature changes.

[0048] During the installation process, the adaptive characteristics of the memory alloy make the support 200 more flexible. For example, when installing at a lower temperature, the support 200 can temporarily remain soft to facilitate position adjustment; once the temperature rises back to the working range, the support 200 will automatically return to the predetermined shape and be fixed in place. Such characteristics not only improve the installation efficiency, but also reduce the requirements for precise positioning and reduce the difficulty of installation.

[0049] Reference Figure 1 In some embodiments of the present invention, the insulating component 300 includes a secondary shield 320, and both sides of the secondary shield 320 are provided with an insulating layer. The support 200 is connected to one of the two insulating layers, and the other of the two insulating layers is bonded to the inner shell surface 400 of the hull. The secondary shield 320 can be made of low-temperature resistant materials, such as stainless steel, high-nickel steel, invar steel plate, aluminum alloy steel plate, etc. The insulating layer includes a plurality of insulating modules 310, and the plurality of insulating modules 310 are arranged at intervals, and a filler 330 is provided between two adjacent insulating modules 310. The insulating module 310 can be made of polyurethane material, and the filler 330 can be made of polyurethane foam, glass wool, expanded perlite, etc. The two insulating layers are staggered and laid, and the staggered laying can minimize the heat transmission problem in the gap between the plates.

[0050] In the above structure, when the temperature inside the cargo tank is significantly lower than the ambient temperature, the secondary shield 320 can effectively block the external heat from being transferred to the liquid cargo, thereby maintaining the stability of the temperature inside the tank. The insulation layers on both sides of the secondary shield 320 further reduce the heat conduction path and reduce the possibility of heat transfer through metal materials. The insulation layer is composed of a plurality of insulation modules 310, which are arranged at intervals, and a filler 330 is provided between two adjacent insulation modules 310, and the filler 330 is an insulation member. Such a design increases the complexity of the heat conduction path, making it more difficult for heat to directly penetrate the entire insulation layer, thereby improving the overall insulation effect.

[0051] Each insulation module 310 can be disassembled and replaced independently, which not only simplifies the installation process, but also facilitates subsequent inspection and maintenance work. The insulation filler 330 between adjacent insulation modules 310 also plays a complementary role, filling the gap between modules, preventing the occurrence of cold bridge effect, and ensuring the continuity and integrity of the entire insulation system. Since the filler 330 itself is also an insulation part, it not only provides a physical filling function, but also further enhances the thermal insulation performance of the system and prevents heat from being transferred through the gap.

[0052] The connection between the support 200 and one of the insulating layers ensures a stable support between the secondary shield 320 and the primary shield 100 without affecting the effectiveness of the insulating layer. The presence of the support 200 provides the necessary mechanical support for the secondary shield 320, enabling it to withstand internal and external pressures while stably adapting to the stress caused by temperature changes.

[0053] Reference Figure 1 In some embodiments of the present invention, the insulating module 310 is provided with a connector 500, part of the connector 500 is connected to the secondary shield 320, and the rest of the connector 500 is connected to the support 200. The connector 500 can be pre-embedded in the insulating module 310, and one end of the connector 500 extends to the surface of the insulating module 310, and then welded to the support 200 and the secondary shield 320.

[0054] The present invention also provides an LNG ship, comprising a membrane liquid cargo tank according to any one of the above embodiments.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A membrane liquid cargo tank, characterized in that: include: A main shield (100) comprises a plurality of standard parts (110) bonded in sequence, wherein at least two protruding grooves (120) are provided on one side of the standard part (110), the protruding grooves (120) are arranged in a staggered manner, and a gap exists between the end of the protruding groove (120) and the edge of the standard part (110); A support member (200), provided on the other side of the standard member (110), and used for supporting the main shield (100); An insulating component (300) is arranged on a side of the support member (200) facing away from the main shield (100).

2. The membrane liquid cargo tank according to claim 1, characterized in that: The protruding grooves (120) are symmetrically distributed in the center of the standard part (110).

3. The membrane liquid cargo tank according to claim 2, characterized in that: A first lap edge (111) is provided on a first side of the standard component (110), and a second lap edge (112) is provided on a second side of the standard component (110), wherein the first side and the second side are opposite to each other; One of the first overlapping edge (111) and the second overlapping edge (112) extends from the upper surface of the standard part (110) toward the middle of the standard part (110) along the height direction of the standard part (110); The other of the first overlapping edge (111) and the second overlapping edge (112) extends from the lower surface of the standard part (110) toward the middle of the standard part (110) along the height direction of the standard part (110).

4. The membrane liquid cargo tank according to claim 3, characterized in that: A third lap edge (113) is provided on a third side of the standard component (110), and a fourth lap edge (114) is provided on a fourth side of the standard component (110), wherein the third side and the fourth side are other two sides opposite to each other; One of the third lap edge (113) and the fourth lap edge (114) extends from the upper surface of the standard part (110) toward the middle of the standard part (110) along the height direction of the standard part (110); The other of the third lap edge (113) and the fourth lap edge (114) extends from the lower surface of the standard part (110) toward the middle of the standard part (110) along the height direction of the standard part (110).

5. The membrane liquid cargo tank according to claim 1, characterized in that: The staggered arrangement of the protruding grooves (120) is at least one of a cross, an X-shaped cross, and a horizontal and vertical staggered arrangement, or a combination of several of them.

6. The membrane liquid cargo tank according to any one of claims 1 to 5, characterized in that: The support member (200) comprises a support body (210), and a support portion (220) adapted to the protruding groove (120) is provided on a side of the support body (210) facing the standard member (110), and the support portion (220) and the protruding groove (120) are arranged in a one-to-one correspondence.

7. The membrane liquid cargo tank according to claim 6, characterized in that: The insulating component (300) comprises a secondary shield (320), both sides of the secondary shield (320) are provided with insulating layers, and the support member (200) is connected to one of the two insulating layers.

8. The membrane liquid cargo tank according to claim 7, characterized in that: The insulating layer comprises a plurality of insulating modules (310), the plurality of insulating modules (310) are arranged at intervals, and a filler (330) is provided between two adjacent insulating modules (310).

9. The membrane liquid cargo tank according to claim 8, characterized in that: The insulating module (310) is provided with a connecting piece (500), a part of the connecting piece (500) is connected to the secondary shield (320), and the rest of the connecting piece (500) is connected to the supporting piece (200).

10. An LNG carrier, characterized in that: Comprising the membrane liquid cargo tank as claimed in any one of claims 1 to 9.

Images