Heat insulation layer structure and film type enclosure system

Abstract

The embodiment of the invention provides a heat insulation layer structure and a thin film type enclosure system, the heat insulation layer structure is applied to the thin film type enclosure system, the heat insulation layer structure comprises a primary heat insulation layer, a secondary heat insulation layer, a secondary heat insulation layer and a heat insulation layer, the primary heat insulation layer is made of a homogeneous enhanced polyurethane material; the secondary heat insulation layer is arranged on the outer side of the primary heat insulation layer, and the secondary heat insulation layer is composed of a supporting assembly and a heat insulation material arranged in the supporting assembly. The heat insulation layer structure and the thin film type enclosure system provided by the embodiment of the invention can assist the cavity wall of the storage cavity in bearing different external force impacts, and the heat insulation effect is good.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of low-temperature energy storage technology, and in particular to an insulation layer structure and a film-type enclosure system. Background Art

[0002] As the international community and the maritime industry pay more and more attention to environmental protection, clean and low-carbon energy development has become a general trend. As a clean energy, liquefied natural gas (LNG) is becoming a new focus of the world's future fuel. Against this background, the LNG transportation industry has also flourished.

[0003] The liquid cargo tank containment system is the core component of LNG ships, which is directly related to the safe operation of the ship and the effective use of energy. At present, the liquid cargo tank containment system is mainly divided into two categories: self-supporting type and membrane type. Among them, the membrane type containment system occupies an absolute position in the LNG ship containment system due to its unique advantages, such as no need for independent support structure, high tank capacity utilization, light structure weight, etc.

[0004] For the membrane containment system, its insulation layer is the key to ensure the safe and efficient transportation of LNG ships. The insulation layer of the membrane containment system generally includes two layers, and a sealing shielding layer is provided on the surface of each insulation layer to form a multi-layer structure of the cabin. The insulation layer generally adopts cold-keeping materials, such as polyurethane foam. The primary shielding layer is generally a corrugated plate, and the secondary shielding layer is generally an aluminum foil reinforced composite material. In the liquid cargo tank containment system, in addition to containing liquids, the cabin wall must also have cold-keeping and heat-insulating functions to limit liquid evaporation and protect the hull from low temperatures. At the same time, due to the particularity of maritime transportation, the cabin wall should be able to withstand the fluid dynamic load of the cargo and the impact of the marine environment to ensure the safe operation of the ship in severe sea conditions. Summary of the invention

[0005] The embodiments of the present invention provide a heat-insulating layer structure and a film-type enclosure system that can assist the storage cavity wall in withstanding different external force impacts and have good heat-insulating effects.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides an insulation layer structure, which is applied to a film-type enclosure system. The insulation layer structure includes:

[0007] a primary thermal insulation layer, the primary thermal insulation layer comprising a polyurethane material layer made of a homogeneous reinforced polyurethane material;

[0008] A secondary thermal insulation layer is arranged on the outside of the primary thermal insulation layer, and the secondary thermal insulation layer is composed of a support component and thermal insulation material arranged in the support component.

[0009] In some embodiments, the primary insulation layer comprises a plurality of primary insulation units, and the plurality of primary insulation units are connected to each other;

[0010] The secondary insulation layer includes a plurality of secondary insulation units, each of which corresponds to a primary insulation unit and is connected to each other.

[0011] In some embodiments, the support assembly includes a plurality of support units, each of the secondary insulation units is composed of a support unit and insulation material, and the structures of the plurality of support units are the same or different.

[0012] In some embodiments, the overall structure of the support unit is box-shaped, and the insulation material is arranged inside the support unit.

[0013] In some embodiments, the support unit includes a first base plate and a first cover plate arranged in parallel, and a plurality of support plates arranged between the first base plate and the first cover plate and respectively connected to the first base plate and the first cover plate, the plurality of support plates cooperate with the first base plate and the first cover plate to form one or more chambers, and the insulation material is arranged in the chambers.

[0014] In some embodiments, a plurality of the support plates are arranged to form different shapes, and the different shapes include at least a first shape and a second shape formed by the plurality of the support plates in different crossing manners.

[0015] In some embodiments, the first shape is an X shape, and the second shape is a grid shape;

[0016] Each of the support plates is provided with a connection groove based on their respective connection relationships, and an adhesive layer is provided in the connection groove. The support plates with the connection relationship are cross-limited based on the connection grooves and are fixedly connected by the adhesive layer.

[0017] In some embodiments, the thermal insulation material is laid on the inner wall of the chamber, and the thermal insulation material includes at least one of the following:

[0018] Glass fiber, glass wool, asbestos, silicates, fibrous materials, perlite, low-density polymer foam, aerogel;

[0019] The primary insulation unit includes a second base plate, a second cover plate and a reinforced polyurethane material layer respectively connected to the second base plate and the second cover plate. The primary insulation unit is fixedly connected to the secondary insulation unit by bonding the second cover plate to the first base plate of the corresponding secondary insulation unit.

[0020] In some embodiments, the plurality of secondary insulation units are connected via a first connection method;

[0021] The primary insulation unit is connected to the corresponding secondary insulation unit via a second connection mode, and the first connection mode is the same as or different from the second connection mode.

[0022] Another embodiment of the present invention also provides a film-type enclosure system, including a storage cavity and an insulation layer structure as described in any of the above embodiments arranged on the inner wall of the storage cavity.

[0023] Based on the disclosure of the above embodiments, it can be known that the beneficial effects of the embodiments of the present invention include providing an insulation layer structure that can be used in a ship cabin or a land storage warehouse, including a primary insulation layer made of a homogeneous reinforced polyurethane material, and a primary insulation layer arranged on the outside of the primary insulation layer, composed of a support assembly and an insulation material arranged in the support assembly. Through this structure, the insulation layer structure can have better impact resistance and insulation capacity, meeting the needs of protecting the safety of cargo transportation when transporting cargo at sea and on land.

[0024] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings.

[0025] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 Schematic diagram of the structure of the thermal insulation layer in an embodiment of the present invention.

[0028] Figure 2 Schematic diagram of the structure of the primary insulation layer in the insulation layer structure in an embodiment of the present invention.

[0029] Figure 3 Schematic diagram of the structure of the secondary insulation layer in the insulation layer structure in an embodiment of the present invention.

[0030] Figure 4 It is a schematic structural diagram of a secondary insulation layer in the insulation layer structure in another embodiment of the present invention.

[0031] Reference numerals:

[0032] 1-primary insulation unit; 2-secondary insulation unit; 3-first cover plate; 4-first bottom plate; 5-second cover plate; 6-second bottom plate; 7-support plate; 8-polyurethane material layer; 9-insulating material. DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0034] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the following description should not be considered as limiting, but merely as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0035] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0036] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0037] It should also be understood that, although the invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the invention that have the characteristics recited in the claims and are therefore within the scope of protection defined thereby.

[0038] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0039] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0040] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0041] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] like Figure 1 As shown, an embodiment of the present invention provides a heat insulation layer structure, which is applied to a film type enclosure system, and the heat insulation layer structure includes:

[0043] A primary thermal insulation layer, the primary thermal insulation layer comprising a polyurethane material layer 8 made of a homogeneous reinforced polyurethane material;

[0044] A secondary heat-insulating layer is arranged on the outside of the primary heat-insulating layer, and the secondary heat-insulating layer is composed of a support component and an insulating material 9 arranged in the support component.

[0045] The insulation layer structure in this embodiment can be applied to a ship cabin or a land storage warehouse, such as a land storage tank, etc. The insulation layer structure can be laid on the bulkhead / tank wall to protect the items contained inside. In this embodiment, the insulation layer structure and the film-type enclosure system are applied to a ship cabin as an example for explanation. The primary insulation layer is used to be connected to the bulkhead, that is, laid on the bulkhead, and the secondary insulation layer is fixedly laid on the side of the primary insulation layer away from the bulkhead. Among them, since the primary insulation layer is made of reinforced polyurethane material, it has excellent insulation performance and mechanical strength, which can not only disintegrate a certain impact force and have a certain resistance to impact force, but also can block heat conduction to ensure stable temperature in the cabin. The secondary insulation layer is composed of a support assembly and an insulation material 9 arranged in the support assembly, wherein the support assembly is a mechanical structure, preferably made of a high-strength, corrosion-resistant composite material, such as plywood, etc., which can withstand the fluid dynamic load of the cargo in the cabin and the impact of the marine environmental force. The heat-insulating material 9, i.e. the cold-keeping material, arranged in the assembly can form a continuous cold-keeping layer / heat-insulating layer, further improving the heat-insulating effect.

[0046] Based on the above content, it can be known that the insulation layer structure provided in this embodiment can be applied to ship cabins or land storage warehouses. By providing a primary insulation layer made of a homogeneous reinforced polyurethane material, and a primary insulation layer arranged on the outside of the primary insulation layer, which is composed of a support assembly and an insulation material 9 arranged in the support assembly, the insulation layer structure has good impact resistance and insulation capacity, which meets the needs of protecting the safety of cargo transportation during sea and land transportation, and can especially ensure the safe operation of ships in severe sea conditions.

[0047] When used, the number of the primary insulation layer and the secondary insulation layer is not fixed, and multiple layers can be set selectively or both can be set. The insulation layer structure and the bulkhead can be detachably connected, and the specific connection method is not limited, such as connecting with an adhesive layer that supports detachment, or connecting with buckles, fixings, etc. The detachable connection can facilitate the operation of the staff during assembly, disassembly, and maintenance.

[0048] In one embodiment, the primary insulation layer includes a plurality of primary insulation units 1, and the plurality of primary insulation units 1 are interconnected or integrally formed, that is, the plurality of primary insulation units 1 can be independently arranged and interconnected to form a whole, or the plurality of primary insulation units 1 are integrally formed and directly form a whole. Further, the secondary insulation layer includes a plurality of secondary insulation units 2, each of which corresponds to a primary insulation unit 1 and is interconnected. That is, a primary insulation unit 1 and a secondary insulation unit 2 are connected to form an insulation layer unit, and the insulation layer structure is formed by a plurality of insulation layer units connected to each other. Preferably, each insulation layer unit is detachably connected, and each insulation layer unit is also detachably connected to the bulkhead, so that when a certain insulation layer unit is damaged or assembled incorrectly, the staff can independently remove the insulation layer unit that needs to be repaired separately without the need for overall disassembly, which simplifies the operation and improves the efficiency of maintenance and update.

[0049] Furthermore, the support assembly includes a plurality of support units, each of the secondary insulation units 2 is composed of a support unit and an insulation material 9, and the structures of the plurality of support units are the same or different. The support assembly in this embodiment includes a plurality of support units, and the number of the plurality of support units corresponds one-to-one to the number of secondary insulation units 2, that is, each support unit is used to construct a secondary insulation unit 2, and specifically, a secondary insulation unit 2 can be prepared by combining a support unit and an insulation material 9. Among them, the structures of the support units can be the same or different, and the constructed secondary insulation units 2 can be the same or different. Therefore, the secondary insulation layer can be formed by combining secondary insulation units 2 with the same structure, or by combining multiple insulation units with different structures.

[0050] Continue to combine Figure 1 As shown, the secondary insulation layer in this embodiment is box-shaped as a whole, and the secondary insulation unit 2 constructing the secondary insulation layer is also box-shaped. In order to prepare the secondary insulation unit 2 into a box shape, the overall structure of the supporting unit is set to a box shape, and the insulation material 9 is arranged in the supporting unit, and the secondary insulation unit 2 is formed based on this construction.

[0051] Specifically, the support unit includes a first bottom plate 4 and a first cover plate 3 arranged in parallel, and a plurality of support plates 7 arranged between the first bottom plate 4 and the first cover plate 3 and connected to the first bottom plate 4 and the first cover plate 3 respectively. The plurality of support plates 7 cooperate with the first bottom plate 4 and the first cover plate 3 to enclose one or more chambers, and the thermal insulation material 9 is arranged in the chambers. That is, the plurality of support plates 7 are vertically arranged between the first bottom plate 4 and the first cover plate 3, and are arranged in different arrangements, and then cooperate with the first bottom plate 4 and the first cover plate 3 to enclose one or more identical or different chambers, and the thermal insulation material 9 is arranged in each chamber. Since the plurality of chambers are closely arranged, the thermal insulation material 9 in each chamber can be connected and matched to form a thermal insulation material 9 layer to achieve efficient thermal insulation.

[0052] At least the support plate 7 located at the outermost side of the secondary insulation unit 2 needs to be stably connected to the first bottom plate 4 and the first cover plate 3 so that the secondary insulation unit 2 forms a structure closed on all sides. As for the support plate 7 inside the secondary insulation unit 2, it can be fixedly connected to both the first bottom plate 4 and the first cover plate 3, or it can be selectively connected, that is, one side is connected and the other side is close to or has a gap with the corresponding plate body, or the support plate 7 located inside the secondary insulation unit 2 is detachably connected to the corresponding first bottom plate 4 and the first cover plate 3, such as if a slot is provided between the first bottom plate 4 and the first cover plate 3, and the support plate 7 can be directly plugged into the corresponding one.

[0053] Specifically, in application, the plurality of support plates 7 may be arranged to form different shapes, and the different shapes at least include a first shape and a second shape formed by the plurality of support plates 7 in different crossing ways. Figure 2 As shown, in one embodiment, the first shape is an X shape, and in another embodiment, as shown Figure 3 As shown, the second shape is a grid type. For example, the support plates 7 are arranged in a "well" shape between the first cover plate 3 and the first bottom plate 4 to form a space with a separate grid, or the support plates 7 are arranged in an X shape, and the X shape can be multiple or one. When multiple support plates 7 cooperate to form multiple X-shaped structures, the multiple X-shaped structures are connected to each other to cooperate with the first cover plate 3 and the first cover plate 3 to form a diamond-shaped chamber, and when multiple support plates 7 cooperate to form a well-shaped structure, the formed chamber is a rectangular chamber. The insulating material 9 is arranged in each of the chambers. The material can be arranged in the chamber in the form of laying only, that is, covering the inner wall of the chamber, or it can be arranged in a filling manner, such as filling the chamber with the insulating material 9.

[0054] Furthermore, each of the support plates 7 may be fixedly connected, or may be directly constructed in an integrally formed manner to obtain a structure that is combined into a first shape or a structure that is combined into a second shape, and the specific method is not limited. In the present embodiment, each of the support plates 7 is provided with a connecting groove based on their respective connection relationships, such as determining whether the connecting groove is opened in the middle or end of the plate body based on the connection relationship, and determining the length of the connecting groove, etc. The connection relationship is determined by the connection method and the shape that the support plates 7 need to be combined to form. The connection method may be plug-in between the plate bodies, or may be achieved by a mating connection through protrusions and grooves set at the ends, or may be other methods that require the use of connecting grooves, and the specific methods are not unique. In order to increase the connection stability, an adhesive layer is provided in the connecting groove in the present embodiment, and the support plates 7 having the connection relationship are cross-limited based on the connecting grooves, and are fixedly connected by the adhesive layer at the same time.

[0055] The heat insulating material 9 described in this embodiment is laid on the inner wall of the chamber, and the heat insulating material 9 includes at least one of the following:

[0056] Fiberglass, glass wool, asbestos, silicates, fibrous materials, perlite, low-density polymer foam, aerogel, or other powdered or granular insulation materials9.

[0057] Further, such as Figure 4 As shown, the primary insulation unit 1 includes a second bottom plate 6, a second cover plate 5, and a polyurethane material layer 8 connected to the second bottom plate 6 and the second cover plate 5, respectively. The thickness of the polyurethane material layer 8 is not limited and can be set according to actual needs. The primary insulation unit 1 is fixedly connected to the secondary insulation unit 2 by the second cover plate 5 being attached to the first bottom plate 4 of the corresponding secondary insulation unit 2.

[0058] The first cover plate 3, the second cover plate 5, the first base plate 4 and the second base plate 6 can all be made of a variety of materials with suitable strength, including but not limited to different types of plywood or composite materials. Preferably, in this embodiment, the cover plate and the base plate are made of reinforced plywood as the manufacturing material. The reinforced plywood is made of wood chips with a large amount of thermosetting resin as the matrix, and the wood chips can be derived from tree species such as beech, fir or birch. Preferably, the density of the reinforced plywood is greater than or equal to 0.9, which is higher than that of ordinary plywood (whose typical density is about 0.7) and has a higher density and stronger compression resistance. The selection of this kind of reinforced plywood shows superior performance in terms of cost, mechanical strength and thermal insulation performance. In addition, the thickness of the cover plate and the base plate in this embodiment is preferably set to any thickness value of about 5mm-10mm, or it can also be taken in other numerical ranges according to needs.

[0059] The support plate 7 can be made of a composite material or carbon fiber material with good mechanical strength, thereby limiting the area of ​​the support portion along the thickness direction of the insulation layer, that is, the thickness of the support plate 7, to maximize the space occupied by the non-structural insulation material 9.

[0060] In this embodiment, the multiple secondary insulation units 2 are connected by a first connection method, and the primary insulation unit 1 is connected to the corresponding secondary insulation unit 2 by a second connection method, and the first connection method is the same as or different from the second connection method. Specifically, the first connection method can be achieved by a first connecting member, and the first connecting member can be connected at each vertex of the secondary insulation unit 2, for example, by perforating or setting concave and convex fittings on the first base plate 4 and the first cover plate 3, or connecting in any other way. The first connecting member is mainly characterized by easy connection, easy installation, and a wide range of applications. The second connection method includes achieving the connection between the primary insulation unit 1 and the corresponding secondary insulation unit 2 by laying an adhesive or the like. Of course, the specific connection method is not limited to this, and the connection can also be achieved by other methods.

[0061] Another embodiment of the present invention also provides a film-type enclosure system, including a storage cavity and an insulation layer structure as described in any of the above embodiments arranged on the inner wall of the storage cavity. The storage cavity may, for example, include but is not limited to a main screen wall layer and a secondary screen wall layer, and the insulation layer structure may be disposed between the main screen wall layer and the secondary screen wall layer, and of course, may also be disposed on other structural members located in the storage cavity. The film-type maintenance system may, for example, be installed in a cabin of a ship, or applied to a land-based film storage tank, etc., without specific limitation. In addition, in actual application, multiple layers of insulation layer structures may be stacked, that is, the thickness of the overall insulation layer may be increased by stacking, and the specific number of stacking is not limited.

[0062] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A thermal insulation layer structure, applied to a membrane type enclosure system, characterized in that: The thermal insulation layer structure comprises: a primary thermal insulation layer, the primary thermal insulation layer comprising a polyurethane material layer made of a homogeneous reinforced polyurethane material; A secondary thermal insulation layer is arranged on the outside of the primary thermal insulation layer, and the secondary thermal insulation layer is composed of a support component and thermal insulation material arranged in the support component.

2. The thermal insulation layer structure according to claim 1, characterized in that: The primary insulation layer comprises a plurality of primary insulation units, and the plurality of primary insulation units are connected to each other; The secondary insulation layer includes a plurality of secondary insulation units, each of which corresponds to a primary insulation unit and is connected to each other.

3. The thermal insulation layer structure according to claim 2, characterized in that: The support assembly includes a plurality of support units, each of the secondary insulation units is composed of a support unit and insulation material, and the structures of the plurality of support units are the same or different.

4. The thermal insulation layer structure according to claim 3, characterized in that: The overall structure of the support unit is box-shaped, and the thermal insulation material is arranged in the support unit.

5. The thermal insulation layer structure according to claim 3, characterized in that: The support unit includes a first base plate and a first cover plate arranged in parallel, and a plurality of support plates arranged between the first base plate and the first cover plate and connected to the first base plate and the first cover plate respectively. The plurality of support plates cooperate with the first base plate and the first cover plate to enclose one or more chambers, and the insulation material is arranged in the chambers.

6. The thermal insulation layer structure according to claim 5, characterized in that: The plurality of support plates are arranged to form different shapes, and the different shapes include at least a first shape and a second shape formed by the plurality of support plates in different crossing ways.

7. The thermal insulation layer structure according to claim 6, characterized in that: The first shape is an X shape, and the second shape is a grid shape; Each of the support plates is provided with a connection groove based on their respective connection relationships, and an adhesive layer is provided in the connection groove. The support plates with the connection relationship are cross-limited based on the connection grooves and are fixedly connected by the adhesive layer.

8. The thermal insulation layer structure according to claim 6, characterized in that: The thermal insulation material is laid on the inner wall of the chamber, and the thermal insulation material includes at least one of the following: Glass fiber, glass wool, asbestos, silicates, fibrous materials, perlite, low-density polymer foam, aerogel; The primary insulation unit includes a second base plate, a second cover plate and a reinforced polyurethane material layer respectively connected to the second base plate and the second cover plate. The primary insulation unit is fixedly connected to the secondary insulation unit by bonding the second cover plate to the first base plate of the corresponding secondary insulation unit.

9. The thermal insulation layer structure according to claim 2, characterized in that: The plurality of secondary insulation units are connected to each other via a first connection method; The primary insulation unit is connected to the corresponding secondary insulation unit via a second connection mode, and the first connection mode is the same as or different from the second connection mode.

10. A membrane type enclosure system, characterized in that: The invention comprises a storage cavity and an insulating layer structure as claimed in any one of claims 1 to 9 arranged on the inner wall of the storage cavity.

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