Thermal insulation structural plate for refrigeration house

Abstract

The utility model relates to a heat preservation structural plate for a refrigeration house. Two outer protection plates are arranged up and down at an interval; the bearing piece is located between the two outer protection plates, and the bearing piece and the two outer protection plates are sealed to define a sealed space. The sealed space is filled with polyimide foam, and the bearing piece and the two outer protection plates form a structure for protecting the polyimide foam in the bearing piece and the two outer protection plates, so that the advantages of light weight, high heat conductivity coefficient, no toxicity, fire prevention and easiness in processing of the polyimide foam material can be utilized, and the overall strength of the thermal insulation structural plate is ensured; the thermal insulation board can meet the requirements for toxicity and safety in a ship cabin, and meanwhile, the mechanical property requirement of a refrigeration house is met. In addition, the bearing part and the two outer protection plates are sealed and enclosed to form a sealed space, so that the waterproof performance and the insulation effect of the insulation board can be fully ensured.

Description

Technical Field

[0001] The present application relates to the technical field of thermal insulation of ship cabins, and in particular to a thermal insulation structural plate for cold storage. Background Art

[0002] The existing cold storages on ships are all constructed and installed on site. During construction, base welding, wood fixing, insulation material bonding, waterproof material construction, composite board installation, stainless steel plate installation and other processes are required. There are disadvantages such as backward technology, time-consuming and labor-intensive, and difficult to ensure quality. This construction method can no longer meet the development needs of ships. At present, there are cold storage insulation board products of certain specifications on the market, which can be used to assemble modular assembled cold storages, but the cold storage insulation board products on the market have not been structurally designed for the thermal insulation and construction characteristics of ships, and cannot meet the toxicity and fire resistance requirements of the safety requirements of ship interior materials, so they cannot be used in ship cabins. In order to change the backward situation of cold storage on-site construction on ships, speed up the progress of ship construction, and save construction costs, it is necessary to design and develop a cold storage insulation board that can be used for ships, and on this basis, vigorously develop modular assembled integrated cold storage.

[0003] At present, the mature cold storage insulation boards on the market are difficult to meet the toxicity, fire resistance and light weight performance requirements of ship cabins. Polyimide foam material has the advantages of light weight, high thermal conductivity, non-toxicity and fire resistance, and easy processing. However, this polyimide foam material is a linear flexible foam, and the strength of the material itself is not high. If it is used as the insulation core material of the cold storage insulation board, it is difficult to ensure the strength of the board body and the connection parts. Therefore, it is also necessary to carry out the corresponding insulation board structure design according to the application and installation process requirements of the ship. Utility Model Content

[0004] The embodiment of the present application provides a thermal insulation structural plate for a cold storage to solve the problem in the related art that the thermal insulation structural plate is difficult to simultaneously meet the non-toxic safety requirements in the ship cabin and the mechanical performance requirements of the cold storage.

[0005] In a first aspect, a thermal insulation structural plate for a cold storage is provided, comprising:

[0006] Two outer protective plates are arranged at intervals above and below each other;

[0007] A bearing member, which is located between the two outer protection plates and is sealed with the two outer protection plates to form a sealed space; the sealed space is filled with polyimide foam;

[0008] The splicing piece is installed on the outer side of the bearing piece.

[0009] In some embodiments, the carrier comprises a rectangular sealing frame, which comprises two long sides and two wide sides; the rectangular sealing frame is made of high-density polyurethane foam.

[0010] In some embodiments, the outer protective plate is provided with an inserting portion on one side in the width direction thereof, and the inserting portion extends along the length direction of the outer protective plate;

[0011] One of the long sides is correspondingly connected between the upper and lower plug-in parts to form a plug; the other long side and the two outer protective plates are combined with each other on the other side in the width direction to form a slot.

[0012] In some embodiments, the plug-in portion includes a horizontal straight plate, and the thickness of the horizontal straight plate is equal to the thickness of the outer protective plate;

[0013] The top surface of the horizontal straight plate located above is fixedly connected to the bottom surface of the outer protective plate located above;

[0014] The bottom surface of the horizontal straight plate located below is fixedly connected to the top surface of the outer protective plate located above.

[0015] In some embodiments, the plug-in portion further comprises a vertical plate, which is connected to a side of the horizontal straight plate away from the outer protective plate;

[0016] The vertical plate located at the top extends downward, and the vertical plate located at the bottom extends upward; an avoidance groove for the splicing piece to pass through is formed between the two vertical plates in the vertical direction.

[0017] In some embodiments, the splicing piece includes a plurality of eccentric hooks, and the eccentric hooks are embedded in the long side portion.

[0018] In some embodiments, the carrier is bonded to the two outer protective plates by a non-toxic adhesive; the polyimide foam is bonded to the carrier and the outer protective plates by a non-toxic adhesive.

[0019] In some embodiments, the outer protective plate comprises a stainless steel plate or a plastic plate;

[0020] The width of the outer protective plate is 500mm-1500mm, the length is 1500mm-2800mm, and the thickness is 100mm-400mm; the thickness of the stainless steel plate is 1.0mm-3.0mm.

[0021] In some embodiments, the density of the polyimide foam is ≥20 mmkg / m3, and the filling thickness is 100 mm to 400 mm.

[0022] In some embodiments, the density of the high-density polyurethane foam is ≥45kg / m3, and the filling thickness is 100mm to 400mm.

[0023] The beneficial effects of the technical solution provided by this application include:

[0024] An embodiment of the present application provides an insulation structure plate for a cold storage. Since two outer protective plates are arranged at an interval up and down; the load-bearing member is located between the two outer protective plates and is sealed with the two outer protective plates to form a sealed space; the sealed space is filled with polyimide foam, and the above load-bearing member and the two outer protective plates form a structure to protect the polyimide foam inside, thereby utilizing the advantages of polyimide foam material such as light weight, high thermal conductivity, non-toxicity and fire resistance, and easy processing, and ensuring the overall strength of the insulation structure plate to meet the connection strength requirements and the strength requirements in the ship cabin, so that the insulation board can meet the toxicity and safety requirements in the ship cabin while meeting the mechanical performance requirements of the cold storage.

[0025] In addition, polyimide is usually an open-cell or semi-open-cell foam. When used as a thermal insulation material, it is easy for water to enter, and the thermal conductivity coefficient decreases after water enters. Therefore, waterproof measures are very important when it is used in the thermal insulation field. Since the support member and the two outer protective plates are sealed to form a sealed space, the waterproof performance and insulation effect of the insulation board can be fully guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A top view of the thermal insulation structural plate for cold storage provided in an embodiment of the present application;

[0028] Figure 2 Provided for the embodiments of this application Figure 1 Schematic diagram of the cross section of AA;

[0029] Figure 3 A schematic diagram of the connection form of the insulation structural panels for adjacent cold storages provided in an embodiment of the present application.

[0030] In the figure: 1, outer protective plate; 100, plug-in part; 101, slot; 2, bearing member; 3, splicing member; 4, polyimide foam. DETAILED DESCRIPTION

[0031] 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, not all of the embodiments. 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 this application.

[0032] The embodiment of the present application provides a thermal insulation structural plate for a cold storage to solve the problem in the related art that the thermal insulation structural plate is difficult to simultaneously meet the non-toxic safety requirements in the ship cabin and the mechanical performance requirements of the cold storage.

[0033] See also Figure 1-Figure 3 , a thermal insulation structural board for cold storage, comprising:

[0034] Two outer protection plates 1, which are arranged at intervals up and down;

[0035] The bearing member 2 is located between the two outer protection plates 1 and is sealed with the two outer protection plates 1 to form a sealed space; the sealed space is filled with polyimide foam 4;

[0036] The splicing component 3 is installed on the outer side of the supporting component 2 .

[0037] The above-mentioned load-bearing member 2 and two outer protective plates form a structure for protecting the polyimide foam 4 inside, thereby utilizing the advantages of the polyimide foam material, such as light weight, high thermal conductivity, non-toxicity and fire resistance, and easy processing, and ensuring the overall strength of the insulation structure plate to meet the connection strength requirements and the strength requirements in the ship cabin. This allows the insulation board to meet the toxicity and safety requirements in the ship cabin while meeting the mechanical performance requirements of the cold storage.

[0038] In addition, polyimide is usually an open-cell or semi-open-cell foam. When used as a thermal insulation material, it is easy for water to enter, and the thermal conductivity coefficient decreases after water enters. Therefore, waterproof measures are very important when it is used in the thermal insulation field. Since the support member 2 and the two outer protective plates 1 are sealed to form a sealed space, the waterproof performance and insulation effect of the thermal insulation board can be fully guaranteed.

[0039] Furthermore, in order to maximize the use of polyimide materials, the size of the carrier 2 needs to be set, and the carrier 2 also needs to meet the requirement of being lightweight, so the following settings are made:

[0040] The bearing member 2 includes a rectangular sealing frame, which includes two long sides and two wide sides; the rectangular sealing frame is made of high-density polyurethane foam. The edge of the insulation board is filled with high-density polyurethane foam within a width range of 100mm to 300mm, with a density of ≥45kg / m3 and a filling thickness of 100 to 400mm. The length side of the outer protective plate 1 is marked as L2, and the width side is marked as L1, and the length of the long side is equal to that of L2.

[0041] In some preferred embodiments, in order to facilitate the connection between two cold storage insulation structural panels and to ensure the overall strength and insulation effect to the greatest extent, that is, the distance between the polyimide foams 4 is minimized, but the presence of the bearing member 2 will increase this distance, so the following settings are provided:

[0042] The outer protective plate 1 is provided with an inserting portion 100 on one side in the width direction thereof, and the inserting portion 100 extends along the length direction of the outer protective plate 1;

[0043] A long side portion is correspondingly connected between the upper and lower plug-in parts 100 to form a plug; the other long side portion and the other side of the two outer protective plates 1 in the width direction thereof are surrounded to form a slot 101 .

[0044] The plug-in portion 100 includes a horizontal straight plate, the thickness of which is equal to the thickness of the outer protective plate 1; the top surface of the upper horizontal straight plate is fixedly connected to the bottom surface of the upper outer protective plate 1; the bottom surface of the lower horizontal straight plate is fixedly connected to the top surface of the upper outer protective plate 1.

[0045] The plug-in portion 100 also includes a vertical plate, which is connected to the side of the horizontal straight plate away from the outer protective plate 1; the upper vertical plate extends downward, and the lower vertical plate extends upward; an avoidance groove is formed between the two vertical plates in the vertical direction for the splicing piece 3 to pass through.

[0046] The plugs and slots formed above can minimize the distance between the polyimide foams 4 after multiple cold storage insulation structural panels are connected. Figure 3 shown.

[0047] In some preferred embodiments, the splicing piece 3 includes a plurality of eccentric hooks, and the eccentric hooks are embedded in the long side portion. The structure of the eccentric hooks can refer to the introduction and description in CN115030333A.

[0048] In some preferred embodiments, the carrier 2 is bonded to the two outer protection plates 1 by a non-toxic adhesive; the polyimide foam 4 is bonded to the carrier 2 and the outer protection plates 1 by a non-toxic adhesive. This method facilitates the connection.

[0049] Since the above structure can meet the safety and non-toxicity requirements in the ship cabin, as well as the structural strength and waterproof isolation requirements, but there are different size requirements for specific structural scenarios, a specific embodiment is given below for illustration:

[0050] The outer protection plate 1 comprises a stainless steel plate or a plastic plate;

[0051] The width of the outer protective plate 1 is 500mm~1500mm, the length is 1500mm~2800mm, and the thickness is 100mm~400mm; the thickness of the stainless steel plate is 1.0mm~3.0mm; the density of the polyimide foam 4 is ≥20mmkg / m3, and the filling thickness is 100mm~400mm; the density of the high-density polyurethane foam is ≥45kg / m3, and the filling thickness is 100mm~400mm.

[0052] The width of a single insulation board is 500mm-1500mm, the length is 1500mm-2800mm, and the thickness is 100mm-400mm; the outer protective plate 1 is filled with high-density polyurethane foam within a width of 100mm-800mm around the edges, and its density is ≥45kg / m3, and the filling thickness is 100mm-400mm. The metal eccentric hook is prefabricated into the high-density polyurethane foam during the high-strength polyurethane foaming process stage.

[0053] The insulation board involved in the present application adopts a sandwich structure of stainless steel plate + insulation material + stainless steel plate, wherein the insulation material consists of two parts. The main insulation material is a non-toxic polyimide foam material with excellent thermal conductivity, and the insulation material of the connection part is a high-density polyurethane foam with low toxicity and excellent mechanical properties. The advantages of this structural form are:

[0054] a) In the structure, high-density polyurethane foam materials with excellent mechanical properties are used in the edge areas around the periphery, and the middle area is non-toxic polyimide foam, the main insulation material. By optimizing the thickness of the stainless steel panel, the density and dosage of the high-density polyurethane foam, the mechanical properties and force-bearing capacity of the insulation board are effectively guaranteed; and the high-density polyurethane foam material in the edge areas around the periphery is a closed-cell material with excellent waterproof performance, thereby effectively enhancing the waterproof ability of the overall structure, so as to meet the application needs of ships.

[0055] b) The insulation material at the connection parts of both ends of the insulation board is made of high-density polyurethane, which can be prefabricated with eccentric metal hook connectors during foaming. The presence of the eccentric metal hook can effectively enhance the strength and reliability of the connection between the insulation boards;

[0056] c) The main insulation material in the structure is still non-toxic polyimide foam material, and low-toxic high-density polyurethane foam material is only used in key stress-bearing parts. By optimizing the usage ratio of the two, it is ensured that the toxicity and fire resistance of the overall structure can meet the safety requirements of ship interior materials.

[0057] Taking into account the safety requirements such as toxicity and fire resistance of ship cabins, the insulation board involved in this application has been fully designed and optimized. The stainless steel plates, polyimide foam materials and adhesives required to make the insulation boards are all non-toxic materials, and the required high-density polyurethane foam is a low-toxic material, but it is only used to strengthen the strength of the insulation boards and connecting structures, and the amount used is small. Therefore, the insulation boards involved in this application do not have safety problems such as toxicity and fire resistance. Compared with the existing insulation boards on the market that have insufficient toxicity and fire resistance and cannot be used in special ship cabins, the insulation boards of this application have the advantages of being non-toxic, flame retardant and fireproof, safe and environmentally friendly, and can therefore be used in ship cabins.

[0058] The insulation board involved in this application is a research and development result after sufficient design optimization and test verification based on the demonstration and analysis of the needs of ship cold storage. It has high strength and reliable connection. When it is used in the construction of ship cold storage, it can be directly assembled to form a cold storage insulation structure. It has the advantages of short construction time and effective quality control, thus effectively changing the backward situation of cold storage on-site construction of ships, speeding up the progress of ship construction, saving construction costs, and having great application value in the field of thermal insulation of ship cold storage. It solves the problem that the toxicity and fire resistance of cold storage insulation board products on the market are insufficient, so they cannot be used in ship cabins, and when it is used in ship cold storage, it can fill the gap of ship cold storage insulation board.

[0059] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0060] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0061] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A thermal insulation structural board for cold storage, characterized in that: It includes: Two outer protective plates (1) are arranged at intervals above and below each other; A bearing member (2) is located between the two outer protection plates (1) and is sealed with the two outer protection plates (1) to form a sealed space; the sealed space is filled with polyimide foam (4); A splicing component (3) is installed on the outside of the bearing component (2).

2. The thermal insulation structural board for cold storage according to claim 1, characterized in that: The carrier (2) comprises a rectangular sealing frame, which comprises two long sides and two wide sides; the rectangular sealing frame is made of high-density polyurethane foam.

3. The thermal insulation structural plate for cold storage according to claim 2, characterized in that: The outer protective plate (1) is provided with an inserting portion (100) on one side in the width direction thereof, and the inserting portion (100) extends along the length direction of the outer protective plate (1); One of the long sides is correspondingly connected between the upper and lower plug-in parts (100) to form a plug; the other long side and the other side of the two outer protective plates (1) in the width direction are combined to form a slot (101).

4. The thermal insulation structural plate for cold storage according to claim 3, characterized in that: The plug-in portion (100) comprises a horizontal straight plate, the thickness of which is equal to the thickness of the outer protective plate (1); The top surface of the horizontal straight plate located above is fixedly connected to the bottom surface of the outer protective plate (1) located above; The bottom surface of the horizontal straight plate located below is fixedly connected to the top surface of the outer protective plate (1) located above.

5. The thermal insulation structural plate for cold storage according to claim 3, characterized in that: The plug-in portion (100) further comprises a vertical plate, which is connected to a side of the horizontal straight plate away from the outer protective plate (1); The vertical plate located at the top extends downward, and the vertical plate located at the bottom extends upward; an avoidance groove for the splicing piece (3) to pass through is formed between the two vertical plates in the vertical direction.

6. The thermal insulation structural plate for cold storage according to claim 2, characterized in that: The splicing piece (3) comprises a plurality of eccentric hooks, and the eccentric hooks are embedded in the long side portion.

7. The thermal insulation structural plate for cold storage according to claim 1, characterized in that: The carrier (2) and the two outer protective plates (1) are bonded together by a non-toxic adhesive; the polyimide foam (4) is bonded together with the carrier (2) and the outer protective plates (1) by a non-toxic adhesive.

8. The thermal insulation structural plate for cold storage according to claim 1, characterized in that: The outer protective plate (1) comprises a stainless steel plate or a plastic plate; The outer protective plate (1) has a width of 500 mm to 1500 mm, a length of 1500 mm to 2800 mm, and a thickness of 100 mm to 400 mm; the thickness of the stainless steel plate is 1.0 mm to 3.0 mm.

9. The thermal insulation structural plate for cold storage according to claim 1, characterized in that: The density of the polyimide foam (4) is ≥20 mmkg / m3, and the filling thickness is 100 mm to 400 mm.

10. The thermal insulation structural plate for cold storage according to claim 2, characterized in that: The density of the high-density polyurethane foam is ≥45kg / m3, and the filling thickness is 100mm to 400mm.

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