Spherical tank heat insulation structure

Abstract

The utility model relates to a spherical tank heat insulation structure, and belongs to the technical field of spherical tank heat insulation, the spherical tank heat insulation structure comprises a spherical tank and a plurality of sheet-shaped heat insulation quilts which are gradually narrowed from the middle to the two ends; the multiple sheet-shaped heat insulation quilts are connected end to end and surround the spherical tank by one circle in the weft direction, and the two ends of the multiple sheet-shaped heat insulation quilts are folded and connected to wrap the spherical tank. The sheet-shaped heat insulation quilts are specifically designed on the surface of the spherical tank for wrapping, the sheet-shaped heat insulation quilts are gradually narrowed from the middle to the two ends, the multiple sheet-shaped heat insulation quilts can be folded and connected to form a spherical shell structure so as to completely wrap the surface of the spherical tank, and the purposes of completely covering the surface of the spherical tank, avoiding leakage points on the surface of the spherical tank and guaranteeing the heat insulation effect are achieved. In addition, by adjusting the size of the sheet-shaped heat insulation quilt and repeatedly coating the spherical tank in the mode, a multi-layer heat insulation structure can be formed, and the heat insulation effect is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of spherical tank thermal insulation, and in particular to a spherical tank thermal insulation structure. Background Art

[0002] Spherical tanks are steel containers widely used in the petroleum, chemical, and metallurgical industries. Compared to cylindrical vessels, spherical tanks have a shell thickness that is only half that of cylindrical vessels at the same diameter and pressure, resulting in less steel consumption, a smaller footprint, and simpler foundation engineering. Depending on the medium being stored, some spherical tanks may require thermal insulation.

[0003] In the prior art, small spherical tanks usually adopt the method of continuously wrapping insulation tape on the surface to form an insulation structure. Due to the spherical structure of the spherical tank surface, when the insulation tape is continuously wrapped, the insulation tape is easy to slip off the surface of the spherical tank and deviate from the winding trajectory, and the surface of the spherical tank is prone to uncovered leakage points, resulting in poor insulation effect. Summary of the Invention

[0004] In response to the shortcomings and one of the shortcomings of the above-mentioned background technology, the embodiment of the present application provides a spherical tank insulation structure that can fully cover the surface of the spherical tank, avoid leakage points on the surface of the spherical tank, and thus ensure the insulation and heat preservation effect.

[0005] In a first aspect, an embodiment of the present application provides a spherical tank insulation structure, comprising:

[0006] A spherical tank and a plurality of sheet-like thermal insulation blankets that gradually narrow from the middle to both ends;

[0007] The plurality of sheet-like thermal insulation blankets are connected end to end and surround the spherical tank along the weft direction, and the two ends of the plurality of sheet-like thermal insulation blankets are respectively gathered and connected to cover the spherical tank.

[0008] On the first aspect, in some embodiments, adjacent sheet-like insulation blankets are overlapped and tightened by sewing and / or bonding so that the sheet-like insulation blankets are tightly attached to the surface of the spherical tank.

[0009] In the first aspect, some embodiments further include a plurality of sector-shaped insulation blankets with different arc radii;

[0010] Each of the fan-shaped heat insulation blankets is connected end to end and surrounds the spherical tank along the weft direction, and multiple fan-shaped heat insulation blankets are arranged along the warp direction and connected in sequence to cover the sheet-like heat insulation blanket.

[0011] On the first aspect, in some embodiments, adjacent fan-shaped thermal insulation quilts are overlapped and tightened by sewing and / or bonding so that the fan-shaped thermal insulation quilts are tightly attached to the surface of the sheet-shaped thermal insulation quilt.

[0012] On the first aspect, in some embodiments, the sheet-shaped insulation blanket and the fan-shaped insulation blanket both include multiple reflective layers and multiple spacer layers, and a single spacer layer is provided between two adjacent reflective layers.

[0013] In a second aspect, the present application provides a spherical tank insulation structure, comprising:

[0014] Spherical tank and multiple sector-shaped insulation blankets with different arc radii;

[0015] Each of the fan-shaped heat insulations is connected end to end and surrounds the spherical tank along the weft direction, and multiple fan-shaped heat insulations are arranged along the warp direction and connected in sequence to cover the spherical tank.

[0016] On the second aspect, in some embodiments, adjacent sector-shaped insulation blankets are overlapped and tightened by sewing and / or bonding so that the sector-shaped insulation blankets are tightly attached to the surface of the spherical tank.

[0017] In a second aspect, some embodiments further include a plurality of sheet-like insulation blankets that gradually narrow from the middle to both ends;

[0018] The plurality of sheet-shaped thermal insulation blankets are connected end to end and surround the spherical tank along the weft direction, and the two ends of the plurality of sheet-shaped thermal insulation blankets are respectively gathered and connected to cover the fan-shaped thermal insulation blanket.

[0019] On the second aspect, in some embodiments, adjacent sheet-like insulation blankets are overlapped and tightened by sewing and / or bonding so that the sheet-like insulation blankets are tightly attached to the surface of the fan-shaped insulation blanket.

[0020] On the second aspect, in some embodiments, the fan-shaped insulation blanket and the sheet-shaped insulation blanket both include multiple reflective layers and multiple spacer layers, and a single spacer layer is provided between two adjacent reflective layers.

[0021] The beneficial effects of the technical solution provided by this application include:

[0022] The surface of the spherical tank of the present application is specifically designed to be covered with a sheet-like insulation blanket, which gradually narrows from the middle to both ends. Multiple sheet-like insulation blankets can be folded and connected into a spherical shell structure to fully cover the surface of the spherical tank, thereby achieving full coverage of the surface of the spherical tank, avoiding leakage points on the surface of the spherical tank, and ensuring the purpose of thermal insulation effect.

[0023] In addition, the surface of the spherical tank of the present application is also specifically designed with a fan-shaped insulation blanket for covering. The fan-shaped insulation blanket is in the shape of a strip, and each fan-shaped insulation blanket is connected end to end and folded together along the meridian direction to form a spherical shell structure to fully cover the surface of the spherical tank. It can also achieve the purpose of fully covering the surface of the spherical tank, avoiding leakage points on the surface of the spherical tank, and ensuring the purpose of thermal insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative work.

[0025] Figure 1 This is a schematic diagram of an implementation of a sheet-shaped thermal insulation blanket-coated spherical tank according to an embodiment of the present application;

[0026] Figure 2 This is a schematic structural diagram of a sheet-shaped thermal insulation blanket according to an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of an implementation of a sector-shaped insulated coated spherical tank according to an embodiment of the present application;

[0028] Figure 4 This is a schematic structural diagram of a fan-shaped insulation quilt according to an embodiment of the present application;

[0029] Figure 5 Schematic diagram of the structure of the reflective layer and the spacer layer of an embodiment of the present application.

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 10. Spherical tank; 20. Sheet insulation blanket; 30. Fan-shaped insulation blanket; 231. Reflective layer; 232. Spacer layer. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] In response to the shortcomings and one of the shortcomings of the above-mentioned background technology, the embodiment of the present application provides a spherical tank insulation structure that can fully cover the surface of the spherical tank, avoid leakage points on the surface of the spherical tank, and thus ensure the insulation and heat preservation effect.

[0034] See also Figures 1 to 5 As shown, the first aspect of the embodiment of the present application provides a spherical tank insulation structure, including:

[0035] The spherical tank 10 and a plurality of sheet-like thermal insulation blankets 20 that are gradually narrowed from the middle to both ends;

[0036] The plurality of sheet-like heat-insulating blankets 20 are connected end to end and surround the spherical tank 10 along the weft direction, and the two ends of the plurality of sheet-like heat-insulating blankets 20 are respectively gathered and connected to cover the spherical tank 10 .

[0037] The surface of the spherical tank 10 of the spherical tank insulation structure of the embodiment of the present application is specifically designed to be covered with a sheet-like insulation blanket 20. The sheet-like insulation blanket 20 gradually narrows from the middle to both ends. Multiple sheet-like insulation blankets 20 can be folded and connected into a spherical shell structure to fully cover the surface of the spherical tank 10, thereby achieving the purpose of fully covering the surface of the spherical tank 10, avoiding leakage points on the surface of the spherical tank 10, and ensuring the thermal insulation effect.

[0038] For example, the upper and lower ends of the sheet-like insulation blanket 20 are pointed, and the two sides of the two pointed ends are curved edges that are convex outward. When covering the spherical tank 10, the center of the side edges of multiple sheet-like insulation blankets 20 are first connected end to end to form a ring structure. Then, one end of the multiple sheet-like insulation blankets 20 are gathered and connected toward the center of the ring structure to form a pocket structure with one end open and the other end closed. This pocket structure is then placed on the surface of the spherical tank 10, and the other ends of the multiple sheet-like insulation blankets 20 are gathered and connected to achieve full coverage of the surface of the spherical tank 10.

[0039] It should be noted that by adjusting the size of the sheet-like insulation blanket 20 and repeatedly covering the spherical tank 10 in the above-mentioned manner, a multi-layer insulation structure can be formed to further enhance the insulation and heat preservation effect. The sheet-like insulation blankets 20 can be connected by overlapping and then tightly connected together by bonding or sewing. The inlet and outlet pipe positions on the spherical tank 10 can be installed by opening holes in the sheet-like insulation blanket 20 at the corresponding positions. The holes can be wrapped with tape at the intersection of the pipe and the hole to enhance the sealing and heat preservation properties.

[0040] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, in which adjacent sheet insulation blankets 20 of the spherical tank insulation structure are overlapped and tightened by sewing and / or bonding so that the sheet insulation blankets 20 are tightly attached to the surface of the spherical tank 10.

[0041] In the embodiment of the present application, the sheet-like insulation blankets 20 are overlapped and connected, and then sewn together or taped together to ensure that the sheet-like insulation blankets 20 are tightly attached to the surface of the spherical tank 10, thereby preventing heat leakage and ensuring thermal insulation. In other embodiments, both sewing together and taping together can be used to ensure thermal insulation.

[0042] For example, each sheet-like insulation blanket 20 is overlapped and connected, and two adjacent sheet-like insulation blankets 20 are sewn and tightened along the overlap path by stitching lines, so that each sheet-like insulation blanket 20 is tightly attached to the surface of the spherical tank 10, and then low-temperature tape is adhered and covered on the overlap path. The low-temperature tape also covers the seams and the harness holes through which the stitching lines pass, thereby avoiding heat leakage points as much as possible and ensuring thermal insulation.

[0043] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, which also includes a plurality of fan-shaped insulation blankets 30 with different arc radii; each fan-shaped insulation blanket 30 is connected end to end and surrounds the spherical tank 10 along the weft direction, and a plurality of fan-shaped insulation blankets 30 are arranged along the warp direction and connected in sequence to cover the sheet insulation blanket 20.

[0044] The outer surface of the spherical tank 10 of the embodiment of the present application is also wrapped with a fan-shaped insulation blanket 30. Specifically, the fan-shaped insulation blankets 30 are connected end to end and surround the spherical tank 10 along the weft direction, and multiple fan-shaped insulation blankets 30 are arranged along the warp direction and connected in sequence, thereby forming a spherical shell structure that fully covers multiple sheet insulation blankets 20. At the same time, the joint positions formed between the fan-shaped insulation blankets 30 and the joint positions formed between the sheet insulation blankets 20 are staggered in space, further improving the insulation and heat preservation properties.

[0045] It should be noted that in some other embodiments, a plurality of sheet-like insulation blankets 20 forming a spherical shell structure and a plurality of fan-shaped insulation blankets 30 forming a spherical shell structure can alternately cover the spherical tank 10, thereby forming a multi-layer insulation structure to further improve the thermal insulation properties.

[0046] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, in which adjacent fan-shaped insulation blankets 30 of the spherical tank insulation structure are overlapped and tightened by sewing and / or bonding to make the fan-shaped insulation blankets 30 close to the surface of the sheet insulation blanket 20.

[0047] In the embodiment of the present application, the fan-shaped insulation quilts 30 are overlapped and connected, and then sewn together or taped together to ensure that each fan-shaped insulation quilt 30 is tightly attached to the surface of the sheet insulation quilt 20, thereby preventing heat leakage and ensuring thermal insulation. In other embodiments, both sewing together and taping together can be used to ensure thermal insulation.

[0048] For example, each fan-shaped insulation quilt 30 is overlapped and connected, and two adjacent fan-shaped insulation quilts 30 are sewn and tightened along the overlap path by using a suture line, so that each fan-shaped insulation quilt 30 is tightly attached to the surface of the sheet insulation quilt 20, and then a low-temperature tape is adhered and covered on the overlap path. The low-temperature tape also covers the seams and the harness holes through which the suture line passes, thereby avoiding heat leakage points as much as possible and ensuring thermal insulation.

[0049] In some optional embodiments, see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, in which the sheet insulation blanket 20 and the fan-shaped insulation blanket 30 both include a multi-layer reflective layer 231 and a multi-layer spacer layer 232, and a single-layer spacer layer 232 is arranged between two adjacent reflective layers 231.

[0050] The insulation blanket of an embodiment of the present application is composed of alternating reflective layers 231 and spacer layers 232, and the reflective layer 231 is made of a material with high reflectivity and low emissivity, so that the radiant heat of the previous layer can be partially reflected by the radiation screen of the current layer, and the remaining energy is transferred to the next layer to be reflected again.

[0051] The spacer layer 232 is mainly composed of a material with low thermal conductivity, such as glass fiber, nylon, silk screen, and foam, which can reduce the solid heat conduction between adjacent reflective layers 231. For example, in this embodiment, an aluminum-coated polyester film can be used as the reflective layer 231, and a polyester mesh can be used as the spacer layer 232.

[0052] See also Figures 1 to 5 As shown, the second aspect of the embodiment of the present application further provides a spherical tank insulation structure, including:

[0053] The spherical tank 10 and a plurality of sector-shaped thermal insulation blankets 30 with different arc radii;

[0054] Each fan-shaped insulation blanket 30 is connected end to end and surrounds the spherical tank 10 along the weft direction, and multiple fan-shaped insulation blankets 30 are arranged along the warp direction and connected in sequence to cover the spherical tank 10.

[0055] The surface of the spherical tank 10 of the spherical tank insulation structure of the embodiment of the present application is specifically designed to be covered with a fan-shaped insulation blanket 30. The fan-shaped insulation blanket 30 is in the shape of a strip, and each fan-shaped insulation blanket 30 is connected end to end and folded together along the warp direction to form a spherical shell structure to fully cover the surface of the spherical tank 10, thereby achieving the purpose of fully covering the surface of the spherical tank 10, avoiding leakage points on the surface of the spherical tank 10, and ensuring the insulation effect.

[0056] For example, when the spherical tank 10 is covered with a strip of fan-shaped insulation blankets 30, the fan-shaped insulation blankets 30 are first connected end to end to form a ring structure, and are sequentially sleeved on the surface of the spherical tank 10 according to the size of the ring structure. At the same time, the edges of adjacent fan-shaped insulation blankets 30 are connected to form a spherical shell structure to fully cover the surface of the spherical tank 10, so as to avoid leakage points on the surface of the spherical tank 10 and ensure the thermal insulation effect.

[0057] It should be noted that by adjusting the size of the fan-shaped insulation blanket 30 and repeatedly covering the spherical tank 10 in the above manner, a multi-layer insulation structure can be formed to further enhance the insulation and heat preservation effect. The fan-shaped insulation blankets 30 can be connected by overlapping and then tightly connected together by bonding or sewing. The inlet and outlet pipe positions on the spherical tank 10 can be installed by opening holes in the fan-shaped insulation blanket 30 at the corresponding positions. The holes can be wrapped with tape at the intersection of the pipe and the hole to enhance the sealing and heat preservation performance.

[0058] In the second aspect, in some optional embodiments: see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, in which adjacent fan-shaped insulation blankets 30 of the spherical tank insulation structure are overlapped and tightened by sewing and / or bonding to make the fan-shaped insulation blankets 30 close to the surface of the spherical tank 10.

[0059] In the embodiment of the present application, the sector-shaped insulation blankets 30 are overlapped and connected, and then sewn together or taped together to ensure that each sector-shaped insulation blanket 30 is tightly attached to the surface of the spherical tank 10, thereby preventing heat leakage and ensuring thermal insulation. In other embodiments, both sewing together and taping together can be used to ensure thermal insulation.

[0060] For example, each fan-shaped insulation blanket 30 is overlapped and connected, and two adjacent fan-shaped insulation blankets 30 are sewn and tightened along the overlap path by sutures, so that each fan-shaped insulation blanket 30 is tightly attached to the surface of the spherical tank 10, and then low-temperature tape is adhered and covered on the overlap path. The low-temperature tape also covers the seams and the harness holes through which the sutures pass, thereby avoiding heat leakage points as much as possible and ensuring thermal insulation.

[0061] In the second aspect, in some optional embodiments: see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, which also includes a plurality of sheet-like insulation blankets 20 that gradually narrow from the middle to both ends; the plurality of sheet-like insulation blankets 20 are connected end to end and surround the spherical tank 10 along the weft direction, and the two ends of the plurality of sheet-like insulation blankets 20 are respectively gathered and connected to cover the fan-shaped insulation blanket 30.

[0062] The outer surface of the spherical tank 10 of the embodiment of the present application is also wrapped with a sheet-like insulation blanket 20. Specifically, multiple sheet-like insulation blankets 20 are connected end to end and surround the spherical tank 10 in the weft direction, and the two ends of the multiple sheet-like insulation blankets 20 are respectively gathered and connected to form a spherical shell structure that fully covers the fan-shaped insulation blanket 30. At the same time, the joint positions formed between the sheet-like insulation blankets 20 and the joint positions formed between the fan-shaped insulation blankets 30 are staggered in space, further improving the insulation and heat preservation properties.

[0063] It should be noted that in some other embodiments, a plurality of sheet-like insulation blankets 20 forming a spherical shell structure and a plurality of fan-shaped insulation blankets 30 forming a spherical shell structure can alternately cover the spherical tank 10, thereby forming a multi-layer insulation structure to further improve the thermal insulation properties.

[0064] In the second aspect, in some optional embodiments: see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, in which adjacent sheet insulation blankets 20 of the spherical tank insulation structure are overlapped and tightened by sewing and / or bonding so that the sheet insulation blankets 20 are tightly attached to the surface of the fan-shaped insulation blanket 30.

[0065] In the embodiment of the present application, the sheet-like insulation blankets 20 are overlapped and connected, and then sewn together or taped together to ensure that the sheet-like insulation blankets 20 are tightly attached to the surface of the fan-shaped insulation blanket 30, thereby preventing heat leakage and ensuring thermal insulation. In other embodiments, both sewing together and taping together can be used to ensure thermal insulation.

[0066] For example, each sheet-like insulation blanket 20 is overlapped and connected, and two adjacent sheet-like insulation blankets 20 are sewn and tightened along the overlap path by means of stitching lines, so that each sheet-like insulation blanket 20 is tightly attached to the surface of the fan-shaped insulation blanket 30, and then low-temperature tape is adhered and covered on the overlap path. The low-temperature tape also covers the seams and the harness holes through which the stitching lines pass, thereby avoiding heat leakage points as much as possible and ensuring thermal insulation.

[0067] In the second aspect, in some optional embodiments: see Figures 1 to 5 As shown, an embodiment of the present application provides a spherical tank insulation structure, in which the fan-shaped insulation blanket 30 and the sheet insulation blanket 20 both include a multi-layer reflective layer 231 and a multi-layer spacer layer 232, and a single-layer spacer layer 232 is arranged between two adjacent reflective layers 231.

[0068] The insulation blanket of an embodiment of the present application is composed of alternating reflective layers 231 and spacer layers 232, and the reflective layer 231 is made of a material with high reflectivity and low emissivity, so that the radiant heat of the previous layer can be partially reflected by the radiation screen of the current layer, and the remaining energy is transferred to the next layer to be reflected again.

[0069] The spacer layer 232 is mainly composed of a material with low thermal conductivity, such as glass fiber, nylon, silk screen, and foam, which can reduce the solid heat conduction between adjacent reflective layers 231. For example, in this embodiment, an aluminum-coated polyester film can be used as the reflective layer 231, and a polyester mesh can be used as the spacer layer 232.

[0070] In the description of this application, it should be noted that the terms "upper" and "lower" and the like 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 this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0071] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any 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 comprising 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, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0072] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A spherical tank insulation structure, characterized in that: include: A spherical tank (10) and a plurality of sheet-like thermal insulation blankets (20) that gradually narrow from the middle to both ends; A plurality of the sheet-like heat-insulating blankets (20) are connected end to end and surround the spherical tank (10) along the weft direction, and both ends of the plurality of the sheet-like heat-insulating blankets (20) are respectively gathered and connected to cover the spherical tank (10); Adjacent sheet-like thermal insulation blankets (20) are overlapped and connected, and are tightened by sewing and / or bonding so that the sheet-like thermal insulation blankets (20) are closely attached to the surface of the spherical tank (10).

2. The spherical tank insulation structure according to claim 1, characterized in that: Also included are a plurality of sector-shaped insulation blankets (30) with different arc radii; Each of the fan-shaped thermal insulation quilts (30) is connected end to end and surrounds the spherical tank (10) along the weft direction, and a plurality of the fan-shaped thermal insulation quilts (30) are arranged along the warp direction and connected in sequence to cover the sheet-shaped thermal insulation quilt (20).

3. The spherical tank insulation structure according to claim 2, characterized in that: Adjacent fan-shaped thermal insulation quilts (30) are overlapped and connected, and are tightened by sewing and / or bonding so that the fan-shaped thermal insulation quilts (30) are closely attached to the surface of the sheet-shaped thermal insulation quilt (20).

4. The spherical tank insulation structure according to claim 2, characterized in that: The sheet-shaped thermal insulation quilt (20) and the fan-shaped thermal insulation quilt (30) both include multiple reflective layers (231) and multiple spacer layers (232), and a single spacer layer (232) is provided between two adjacent reflective layers (231).

5. A spherical tank insulation structure, characterized in that: include: A spherical tank (10) and a plurality of sector-shaped thermal insulation blankets (30) having different arc radii; Each of the fan-shaped insulation blankets (30) is connected end to end and surrounds the spherical tank (10) along the weft direction, and a plurality of the fan-shaped insulation blankets (30) are arranged along the warp direction and connected in sequence to cover the spherical tank (10); Adjacent fan-shaped insulation blankets (30) are overlapped and connected, and are tightened by sewing and / or bonding so that the fan-shaped insulation blankets (30) are closely attached to the surface of the spherical tank (10).

6. The spherical tank insulation structure according to claim 5, characterized in that: It also includes a plurality of sheet-like thermal insulation blankets (20) that gradually narrow from the middle to both ends; The plurality of sheet-shaped thermal insulation blankets (20) are connected end to end and surround the spherical tank (10) along the weft direction, and the two ends of the plurality of sheet-shaped thermal insulation blankets (20) are respectively gathered and connected to cover the fan-shaped thermal insulation blanket (30).

7. The spherical tank insulation structure according to claim 6, characterized in that: Adjacent sheet-shaped thermal insulation quilts (20) are overlapped and connected, and are tightened by sewing and / or bonding so that the sheet-shaped thermal insulation quilts (20) are closely attached to the surface of the fan-shaped thermal insulation quilt (30).

8. The spherical tank insulation structure according to claim 6, characterized in that: The fan-shaped thermal insulation quilt (30) and the sheet-shaped thermal insulation quilt (20) both include a multi-layer reflective layer (231) and a multi-layer spacer layer (232), and a single layer of the spacer layer (232) is provided between two adjacent reflective layers (231).

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