A bundled heat insulation structure

Abstract

The utility model relates to low temperature heat insulation technical field provides a kind of bundling heat insulation structure. Including: the heat insulation structure main part of adhering covering setting in the surface of low temperature storage tank, multiple fixed mechanisms are uniformly fixed and set in the surface of low temperature storage tank;Heat insulation structure main part is covered with protective layer, and protective layer is covered with bundling net;Wherein, each fixed mechanism is provided with fixed base and bundling unit, each bundling unit is worn out heat insulation structure main part and protective layer, each bundling unit is connected with bundling net bundling, and heat insulation structure main part is limited in the surface of low temperature storage tank. Advantage lies in: bundling net is bound tightly on fixed mechanism with certain tension, and heat insulation structure main part and protective layer are directly fixed on the surface of low temperature storage tank in the bundling mode, the installation mode of heat insulation structure is simplified, additional site and equipment are not needed, and installation period is greatly reduced, and the requirement to worker technology and artificial cost are also reduced simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature thermal insulation technology, specifically to a bundled thermal insulation structure. Background Technology

[0002] Insulation of cryogenic liquid storage tanks, especially the insulation structures of large tanks such as launch vehicles and LNG containers, has long relied on spraying and bonding foam plastics. This method suffers from several drawbacks, including uncontrollable adhesive usage leading to excessive surface density, high cost of spraying equipment, complex processes, long construction cycles, stringent site requirements, and significant challenges in cost control. Furthermore, traditional wrap-around insulation products lack load-bearing capacity, have poor adaptability to complex operating conditions such as vibration and bending deformation, and suffer from insufficient refined design.

[0003] Therefore, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a bundled thermal insulation structure to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a bundled thermal insulation structure, comprising: a thermal insulation structure main body that is fitted and covered on the surface of a cryogenic storage tank, and a plurality of fixing mechanisms that are uniformly fixed on the surface of the cryogenic storage tank; a protective layer is provided on the thermal insulation structure main body, and a bundling net is provided on the protective layer;

[0006] Each of the fixing mechanisms is provided with a fixing base and a binding unit. Each binding unit extends through the main body of the heat insulation structure and the protective layer. Each binding unit is detachably connected to the binding net to limit the main body of the heat insulation structure to the surface of the low-temperature storage tank.

[0007] In an optional embodiment, the cryogenic storage tank is one of spherical, cylindrical, or square shapes; the material of the cryogenic storage tank is one of stainless steel, aluminum alloy, copper alloy, titanium alloy, glass fiber reinforced resin matrix composite material, or carbon fiber reinforced resin matrix composite material.

[0008] In an optional embodiment, the fixing mechanism is made of the same or different material as the cryogenic storage tank and is fixed to the surface of the cryogenic storage tank by welding, riveting or screwing.

[0009] In an optional embodiment, the main body of the thermal insulation structure includes a first thermal insulation functional layer, a radiation functional layer, and a second thermal insulation functional layer arranged sequentially from top to bottom; wherein, the first thermal insulation functional layer is attached to the protective layer, and the second thermal insulation functional layer is attached to the surface of the cryogenic storage tank.

[0010] In an optional embodiment, the protective layer is a plain fabric selected from plain weave, satin weave, or knitted fabric; the material of the protective layer is one or more selected from glass fiber, quartz fiber, aramid fiber, polyimide fiber, or polyester fiber.

[0011] In an optional embodiment, the binding net is in the form of a mesh fabric, and the shape of the mesh is one of triangle, quadrilateral, pentagon, or hexagon; the material of the binding net is one or more of glass fiber, quartz fiber, aramid fiber, polyimide fiber, or polyester fiber.

[0012] In an optional embodiment, the fixing base and the binding unit are integrally formed or assembled separately; the bottom surface of the fixing base is the same as the surface of the cryogenic storage tank.

[0013] In an optional embodiment, the binding unit is one of a ring type, hook type, paperclip type, S type or four-claw hook type; the top of the binding unit is higher than the main body of the heat insulation structure, or is placed in a pre-set recess in the main body of the heat insulation structure.

[0014] In an optional embodiment, the thermal conductivity of the first and second thermal insulation functional layers is ≤0.1W / mK; the reflectance coefficient of the radiation functional layer is >90.

[0015] In an optional embodiment, the binding net is a woven structure with elasticity and conformal deformation capability, which is tied to the fixing mechanism with a certain tension, and the main body of the heat insulation structure is directly fixed to the surface of the low temperature storage tank by binding.

[0016] The beneficial effects of this utility model are as follows: This bundled insulation structure is used in cryogenic storage tanks. It uses a woven mesh with elasticity and conformal deformation capability to be tightly bound to the fixing mechanism with a certain tension. The main body of the insulation structure and the protective layer are directly fixed to the surface of the cryogenic storage tank by the bundled method, which simplifies the installation method of the insulation structure. No additional site or equipment is required, which greatly reduces the installation cycle. At the same time, it also reduces the technical requirements of workers and labor costs. In addition, since there is no adhesive between the main body of the insulation structure and the surface of the cryogenic storage tank, the fixing mechanism is used to limit the position by the bundled method, which improves the adaptability of the main body of the insulation structure to complex working conditions such as vibration and bending deformation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the basic components of a bundled thermal insulation structure for a cryogenic storage tank, provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the installation of a bundled thermal insulation structure for a cryogenic storage tank, provided as an embodiment of the present invention.

[0020] The attached figures are labeled as follows: 1-main body of the thermal insulation structure, 101-first thermal insulation functional layer, 102-radiation functional layer, 103-second thermal insulation functional layer, 2-fixing mechanism, 3-protective layer, 4-manhole flange, 5-conveying flange, 6-binding net. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "attached" to another component, it can be located directly or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positions based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "Multiple" means two or more, and "several" means any number including one, unless otherwise explicitly specified.

[0023] Please see the appendix Figure 1-2 The purpose of this embodiment is to provide a bundled thermal insulation structure for cryogenic storage tanks, comprising: a thermal insulation structure body 1 that is fitted and covered on the surface of the cryogenic storage tank; and multiple fixing mechanisms 2 that are uniformly fixed on the surface of the cryogenic storage tank; a protective layer 3 is covered on the thermal insulation structure body 1, and a binding net 6 is covered on the protective layer 3. The cryogenic storage tank is spherical, cylindrical, or square; the material of the cryogenic storage tank is stainless steel, aluminum alloy, copper alloy, titanium alloy, glass fiber reinforced resin matrix composite material, or carbon fiber reinforced resin matrix composite material. The protective layer 3 is made of a plain weave fabric, satin weave fabric, or knitted fabric; the material of the protective layer 3 is one or more of glass fiber, quartz fiber, aramid fiber, polyimide fiber, or polyester fiber.

[0024] In this embodiment, each fixing mechanism 2 is provided with a fixing base and a binding unit. The fixing base and binding unit are integrally formed or assembled separately. The bottom surface of the fixing base is the same as the surface of the cryogenic storage tank. The fixing mechanism 2 is made of the same or different material as the cryogenic storage tank. The fixing base is fixed to the surface of the cryogenic storage tank by welding, riveting, or screwing. Each binding unit extends through the main body of the thermal insulation structure 1 and the protective layer 3. Each binding unit is bound to the binding net 6, limiting the main body of the thermal insulation structure 1 to the surface of the cryogenic storage tank. In an optional embodiment, see Appendix Figure 2 The fixing mechanism 2 is connected to the bottom of the cryogenic storage tank by welding. The fixing mechanism 2 is arranged in a row every 45° along the radial direction. The spacing between each fixing structure 2 along the same radial direction is 400mm. Preferably, the binding unit adopts a hook-shaped structure.

[0025] Specifically, the binding net 6 is in the form of a mesh fabric, with the mesh shape being one of triangles, quadrilaterals, pentagons, or hexagons. Its side length is adjusted according to the design surface density, binding density, and binding force requirements. The binding net 6 is made of one or more of glass fiber, quartz fiber, aramid fiber, polyimide fiber, or polyester fiber. The binding unit is one of a ring type, hook type, paperclip type, S-type, or four-claw hook type. The top of the binding unit is higher than the main body of the thermal insulation structure 1, or placed in a pre-set recess in the main body of the thermal insulation structure 1.

[0026] It should be noted that the binding net 6 is a woven structure with elasticity and conformal deformation capability. It is tightly bound to the fixing mechanism with a certain tension, directly fixing the main body of the thermal insulation structure 1 to the surface of the cryogenic storage tank by binding. This simplifies the installation method of the thermal insulation structure, eliminates the need for additional site and equipment, significantly reduces the installation cycle, and also reduces the technical requirements of workers and labor costs. In addition, since there is no adhesive between the main body of the thermal insulation structure 1 and the surface of the cryogenic storage tank, and the fixing mechanism is used directly for binding to limit the position, the adaptability of the main body of the thermal insulation structure to complex working conditions such as vibration and bending deformation is improved.

[0027] Furthermore, the main body of the thermal insulation structure 1 includes a first thermal insulation functional layer 101, a radiation functional layer 102, and a second thermal insulation functional layer 103 arranged sequentially from top to bottom; wherein, the first thermal insulation functional layer 101 is attached to the protective layer 3, and the second thermal insulation functional layer 103 is attached to the surface of the cryogenic storage tank. The thermal conductivity of the materials of the first thermal insulation functional layer 101 and the second thermal insulation functional layer 103 is ≤0.1W / mK; the reflectance coefficient of the material of the radiation functional layer 102 is >90, mainly used to reduce heat exchange caused by radiative heat transfer. See Appendix Figure 1 In an optional embodiment, the first heat insulation layer 101 and the second heat insulation layer 103 are made of materials with a density of 30 kg / m³. 3The flexible polyimide foam material has a thermal conductivity of ≤0.045W / m·K, a thickness of 10mm per layer, and a total thickness of 20mm; the radiation functional layer 102 is made of single-sided aluminum-coated polyimide film with a reflectivity of ≥95%.

[0028] In use, the main body of the insulation structure 1 and the protective layer 3 are first assembled in sections or as a whole, and then fixed to the surface of the cryogenic storage tank using a fixing mechanism and binding net. No adhesive treatment is applied between the main body of the insulation structure 1 and the surface of the cryogenic storage tank. This method of using a fixing structure and binding net to limit the position of the main body of the insulation structure 1 shortens the installation cycle and saves labor costs. It has significant advantages compared to existing technologies, as shown in Table 1.

[0029] Table 1 Comparison of technical effects between the embodiments and existing technologies.

[0030]

[0031]

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bundled thermal insulation structure, characterized in that, include: A heat insulation structure main body (1) is attached to and covered on the surface of the low temperature storage tank, and a plurality of fixing mechanisms (2) are evenly fixed on the surface of the low temperature storage tank; a protective layer (3) is covered on the heat insulation structure main body (1), and a binding net (6) is covered on the protective layer (3). Each of the fixing mechanisms (2) is provided with a fixing base and a binding unit. Each binding unit extends through the heat insulation structure body (1) and the protective layer (3). Each binding unit is detachably connected to the binding net (6) to limit the heat insulation structure body (1) to the surface of the low temperature storage tank.

2. The bundled thermal insulation structure as described in claim 1, characterized in that, The cryogenic storage tank is spherical, cylindrical, or square; the material of the cryogenic storage tank is stainless steel, aluminum alloy, copper alloy, titanium alloy, glass fiber reinforced resin matrix composite material, or carbon fiber reinforced resin matrix composite material.

3. The bundled thermal insulation structure as described in claim 1, characterized in that, The fixing mechanism (2) is made of the same or different material as the cryogenic storage tank and is fixed to the surface of the cryogenic storage tank by welding, riveting or screwing.

4. The bundled thermal insulation structure as described in claim 1, characterized in that, The main body of the heat insulation structure (1) includes a first heat insulation functional layer (101), a radiation functional layer (102), and a second heat insulation functional layer (103) arranged sequentially from top to bottom; wherein, the first heat insulation functional layer (101) is attached to the protective layer (3), and the second heat insulation functional layer (103) is attached to the surface of the low temperature storage tank.

5. The bundled thermal insulation structure as described in claim 1, characterized in that, The protective layer (3) is a plain fabric made of plain weave, satin weave or knitted fabric.

6. The bundled thermal insulation structure as described in claim 1, characterized in that, The binding net (6) is in the form of a mesh cloth, and the shape of the mesh is one of triangle, quadrilateral, pentagon or hexagon.

7. The bundled thermal insulation structure as described in claim 3, characterized in that, The fixing base and the binding unit are integrally formed or assembled separately; the bottom surface of the fixing base is the same as the surface of the cryogenic storage tank.

8. The bundled thermal insulation structure as described in claim 7, characterized in that, The binding unit is one of the following: ring type, hook type, paperclip type, S type or four-claw hook type; the top of the binding unit is higher than the heat insulation structure body (1) or placed in the pre-set recess of the heat insulation structure body (1).

9. The bundled thermal insulation structure as described in claim 4, characterized in that, The thermal conductivity of the first thermal insulation functional layer (101) and the second thermal insulation functional layer (103) is ≤0.1W / mK; the reflectance coefficient of the material of the radiation functional layer (102) is >90.

10. The bundled thermal insulation structure as described in claim 6, characterized in that, The binding net (6) is a woven structure with elasticity and shape-adaptive deformation capability. It is tied to the fixing mechanism with a certain tension, and the main body of the heat insulation structure (1) is directly fixed to the surface of the low temperature storage tank by binding.

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