Heat insulation device suitable for sodium-cooled fast reactor

Abstract

The embodiment of the present application provides a heat insulation device suitable for a sodium-cooled fast reactor, wherein the heat insulation device is arranged between a main body device of the sodium-cooled fast reactor and a supporting foundation. The heat insulation device suitable for the sodium-cooled fast reactor comprises a plurality of heat insulation tube plates, a plurality of reinforcing rib plates and a plurality of lateral anchor ribs, wherein the plurality of heat insulation tube plates are arranged in a parallel array; the plurality of reinforcing rib plates are connected between two adjacent heat insulation tube plates to enhance heat dissipation and strength of the heat insulation device; and the plurality of lateral anchor ribs are connected to the outside of the two outermost heat insulation tube plates and extend into the inside of the supporting foundation to fix the heat insulation tube plates and enhance lateral heat dissipation of the heat insulation device.

Description

TECHNICAL FIELD

[0001] At least one embodiment of the present application relates to a heat insulation device, in particular to a heat insulation device suitable for a sodium-cooled fast reactor and a sodium-cooled fast reactor. BACKGROUND

[0002] The sodium-cooled fast reactor power station uses liquid sodium as a coolant. Liquid sodium has a relatively low melting point and a relatively high boiling point, which makes the sodium-cooled fast reactor power station have a higher temperature working medium than the pressurized water reactor power station, with an average temperature of more than 550℃. The higher temperature working medium results in the presence of more high-temperature equipment in the sodium-cooled fast reactor system, such as sodium buffer tanks, steam generator accident protection system discharge tanks, sodium distributors, etc. These high-temperature equipment have large size and weight, and are usually supported by saddle-type, skirt-type supports and ear-type supports during design. In the process of heat conduction, the heat of the high-temperature equipment is transferred to the bottom plate of the equipment support through the support, and then to the concrete. If the equipment temperature is too high, it will further be transferred to the floor of the room where the equipment is located through the reinforced concrete support foundation, wherein the long-term working temperature of ordinary concrete in the floor is generally not more than 65℃. The load-carrying capacity, deformation resistance, integrity and fire resistance of the reinforced concrete member will all be degraded at high temperature or after high temperature, thereby affecting the safety of the structure. SUMMARY

[0003] In view of the above problems, the present application is proposed to provide a heat insulation device suitable for a sodium-cooled fast reactor, which can effectively reduce the heat transfer between the main equipment of the sodium-cooled fast reactor and the support foundation, while not affecting the support strength of the support foundation.

[0004] According to an embodiment of the present application, a heat insulation device suitable for a sodium-cooled fast reactor is provided, which is arranged between the main equipment of the sodium-cooled fast reactor and the support foundation, wherein the heat insulation device comprises: a plurality of heat insulation tube plates arranged in a parallel array; a plurality of reinforcing rib plates connected between two adjacent heat insulation tube plates to enhance the heat dissipation and strength of the heat insulation device; and a plurality of lateral anchor bars connected outside the outermost two heat insulation tube plates and extending into the inside of the support foundation to fix the heat insulation tube plates and enhance the lateral heat dissipation of the heat insulation device.

[0005] The thermal insulation device for sodium-cooled fast reactors provided in this application includes multiple thermal insulation tube sheets, multiple reinforcing ribs, and multiple lateral anchors. By arranging the multiple thermal insulation tube sheets in a parallel array, with adjacent tube sheets connected by reinforcing ribs, heat dissipation is increased while the strength of the support for the main equipment is also enhanced. Furthermore, the number, length, and number of reinforcing ribs of the thermal insulation tube sheets can be flexibly designed according to the required heat output. Multiple lateral anchors are connected to the outer sides of the two outermost thermal insulation tube sheets and extend into the support foundation, thereby fixing the thermal insulation tube sheets and increasing lateral heat dissipation of the thermal insulation device. By installing the thermal insulation device between the main equipment of the sodium-cooled fast reactor and the support foundation, heat conduction from the main equipment to the support foundation can be effectively reduced, while ensuring that the support strength of the support foundation is not affected. Attached Figure Description

[0006] Figure 1 A side view of a thermal insulation device suitable for a sodium-cooled fast reactor according to an embodiment of this application;

[0007] Figure 2 This is a perspective view of a thermal insulation device suitable for a sodium-cooled fast reactor according to an embodiment of this application;

[0008] Figure 3 This is a top view of a heat insulation device according to an embodiment of this application;

[0009] Figure 4 for Figure 2 A top view of the insulation device shown;

[0010] Figure 5 for Figure 4 The side view of the insulation device shown;

[0011] Figure 6 This is a top view of a thermal insulation device applicable to a sodium-cooled fast reactor according to another embodiment of this application;

[0012] Figure 7 for Figure 2 A schematic diagram of an installation of the heat insulation device shown;

[0013] Figure 8 for Figure 2 Side view of the hollow structure of the insulation tube sheet in the insulation device shown.

[0014] [Explanation of Labels in the Attached Image]

[0015] 1-Insulation device, 101-Insulation tube sheet, 102-Reinforcing rib plate, 103-Lateral anchor bar, 104-Anchor block, 105-Auxiliary anchor bar, 106-Auxiliary anchor block, 2-Main equipment of sodium-cooled fast reactor, 3-Support foundation. Detailed Implementation

[0016] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only one embodiment but not all embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0017] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present application should be understood as their common meanings by those of ordinary skill in the art to which the present application belongs. If the descriptions of "first", "second", etc. are involved throughout the text, the "first", "second", etc. are only used to distinguish similar objects, and cannot be understood as indicating or implying their relative importance, sequence or implying the number of the indicated technical features. It should be understood that the data of "first", "second", etc. can be interchanged under appropriate circumstances. If "and / or" appears throughout the text, it means that three parallel schemes are included. For example, "A and / or B" includes A scheme, or B scheme, or A and B schemes are satisfied at the same time.

[0018] According to the operation experience of the sodium-cooled fast reactor, the temperature of the bottom plate of the sodium-cooled fast reactor equipment can reach about 300℃, and the average temperature of the reinforced concrete as the support of the bottom plate also reaches about 200℃. When the heat of the sodium-cooled fast reactor is transmitted to the room floor through the reinforced concrete, the floor temperature will also be higher than 100℃.

[0019] Because the high temperature (above 200℃) has a great influence on the mechanical properties of concrete materials, for example, the load-carrying capacity, deformation resistance, integrity and fire resistance of reinforced concrete members at high temperature or after experiencing high temperature will all be degraded. The heat transfer performance of concrete becomes poor, which causes the temperature stress of the cross section and the bending deformation of the member due to the uneven temperature field in the cross section, and the elongation deformation of the concrete along the axial direction of the structural member when the concrete expands under heat. Especially when the concrete is subjected to high-temperature explosion impact load, the high-temperature resistance of the reinforced concrete member will be significantly reduced, and the greater the span of the reinforced concrete member, the more significant the influence.

[0020] According to the safety specification requirements, the long-term working temperature of ordinary concrete under normal working conditions is generally not more than 65℃. Therefore, when designing the sodium-cooled fast reactor, measures for heat insulation or heat dissipation between the sodium-cooled fast reactor and the concrete support must be considered.

[0021] In order to solve the problems in the prior art, the embodiments of the present application provide a heat insulation device suitable for a sodium-cooled fast reactor, which is arranged between the main body equipment of the sodium-cooled fast reactor and the support foundation, wherein the heat insulation device comprises: a plurality of heat insulation pipe plates, a plurality of reinforcing rib plates and a plurality of lateral anchor bars.

[0022] The plurality of heat insulation tube plates are arranged in a parallel array with each other; the plurality of reinforcing rib plates are connected between two adjacent heat insulation tube plates to enhance heat dissipation and strength of the heat insulation device; and the plurality of lateral anchor ribs are connected outside the two outermost heat insulation tube plates and extend into the inside of the support foundation to fix the heat insulation tube plates and enhance lateral heat dissipation of the heat insulation device.

[0023] In the embodiment of the present application, by arranging the plurality of heat insulation tube plates in a parallel array with each other and connecting the plurality of reinforcing rib plates between two adjacent heat insulation tube plates, the heat transfer from the main body device of the sodium-cooled fast reactor to the support foundation is reduced while the strength of supporting the main body device is increased, and the number, length of the heat insulation tube plates and the number of the reinforcing rib plates can be flexibly designed to meet the different load and heat release requirements of the main body device of the sodium-cooled fast reactor. The plurality of lateral anchor ribs are connected outside the two outermost heat insulation tube plates and extend into the inside of the support foundation to fix the heat insulation tube plates and enhance lateral heat dissipation of the heat insulation device. Therefore, the heat insulation device is arranged between the main body device of the sodium-cooled fast reactor and the support foundation, and by using the poor heat conduction performance of the heat insulation device, the heat transfer between the main body device of the sodium-cooled fast reactor and the support foundation is reduced while the supporting strength of the support foundation is ensured.

[0024] Figure 1 A side view of the heat insulation device suitable for a sodium-cooled fast reactor according to the embodiment of the present application; Figure 2 A perspective view of the heat insulation device suitable for a sodium-cooled fast reactor according to the embodiment of the present application; Figure 3 A top view of the heat insulation device according to the embodiment of the present application.

[0025] The following will be described in detail Figures 1 to 3 The structure of the heat insulation device suitable for a sodium-cooled fast reactor in the embodiment of the present application will be described in detail.

[0026] As shown in Figures 1 to 3 The heat insulation device 1 is arranged between the main body device 2 of the sodium-cooled fast reactor and the support foundation 3, wherein the heat insulation device 1 comprises a plurality of heat insulation tube plates 101, a plurality of reinforcing rib plates 102 and a plurality of lateral anchor ribs 103. The plurality of heat insulation tube plates 101 are arranged in a parallel array with each other. The plurality of reinforcing rib plates 102 are connected between two adjacent heat insulation tube plates 101 to enhance heat dissipation and strength of the heat insulation device 1. The plurality of lateral anchor ribs 103 are connected outside the two outermost heat insulation tube plates 101 and extend into the inside of the support foundation 3 to fix the heat insulation tube plates 101 and enhance lateral heat dissipation of the heat insulation device 1.

[0027] In this embodiment, the heat insulation tube sheet 101 can adopt various cross-sectional shapes such as rectangular cross-section, circular cross-section, I-beam interface, and channel steel interface; the cross-section of the reinforcing rib 102 can be rectangular cross-section, elliptical cross-section, or circular cross-section, etc. The shape of the cross-sections of the heat insulation tube sheet 101 and the reinforcing rib 102 is determined by the heat insulation requirements and is not limited to the embodiments of this application. Figures 1 to 3 The rectangular cross-section shown is illustrated. The heat insulation tube sheet 101 and reinforcing ribs 102 can be made of any one of round steel, steel plate, carbon steel, stainless steel, or a material with higher strength. The strength of the material is primarily determined by the load on the sodium-cooled fast reactor main equipment 2. The length and thickness of the multiple lateral anchor bars 103 are limited according to actual needs. The supporting foundation includes concrete, which can be ordinary reinforced concrete or high-temperature resistant concrete; no further specific limitations are made here. When the heat insulation device 1 in this embodiment is applied to a sodium-cooled fast reactor system, to meet different load and heat transfer requirements, higher strength materials can be selected, and the wall thickness and number of components within the heat insulation device 1 can be increased to comprehensively solve the heat transfer and support strength problems of the heat insulation device. The heat insulation device can be placed horizontally or vertically between the sodium-cooled fast reactor main equipment and the supporting foundation.

[0028] Figures 1 to 3 for Figure 4 A top view of the insulation device shown; Figure 2 for Figure 5 Side view of the insulation device shown.

[0029] The following combination Figure 4 and Figure 4 The anchor block in the embodiments of this application will be described in detail.

[0030] In some embodiments, such as Figure 5 and Figure 4 As shown, the insulation device suitable for sodium-cooled fast reactors further includes multiple anchor blocks 104. These anchor blocks 104 are fixedly mounted on multiple lateral anchor bars 103 to increase the load-bearing surface between the lateral anchor bars 103 and the supporting foundation 3. The anchor blocks 104 are fixed to the lateral anchor bars 103 by welding, or by fabricating the anchor blocks 104 and lateral anchor bars 103 into a single integrated structure. Fixing the anchor blocks 104 to the lateral anchor bars 103 facilitates the connection of the insulation tube sheet 101 and the reinforcing ribs 102 to the supporting foundation 3, i.e., to the concrete. Simultaneously, the anchor blocks 104, with the combined action of the reinforcing ribs 102 and the lateral anchor bars, can increase lateral heat transfer in the insulation tube sheet 101, which is beneficial for isolating vertical heat transfer, such as vertical heat transfer between the sodium-cooled fast reactor main equipment 2 and the supporting foundation, or between the floor slab of the room containing the sodium-cooled fast reactor main equipment 2.

[0031] Figure 5 A top view of a heat insulation device suitable for a sodium-cooled fast reactor according to another embodiment of the present application.

[0032] Further, in some embodiments, as shown in Figure 6 , the heat insulation device suitable for a sodium-cooled fast reactor further comprises a plurality of auxiliary anchor bars 105 and a plurality of auxiliary anchor blocks 106. The plurality of auxiliary anchor bars 105 are respectively connected to at least one end of the two ends of the plurality of heat insulation tube plates 101; and the plurality of auxiliary anchor blocks 106 are fixedly arranged on the plurality of auxiliary anchor bars 105. It can be understood that, based on the heat insulation device shown in Figure 6 , the plurality of auxiliary anchor bars 105 are respectively connected to one end of the two ends of the plurality of heat insulation tube plates 101, and the plurality of auxiliary anchor blocks 106 are fixedly arranged on the plurality of auxiliary anchor bars 105, so as to further increase the lateral heat transfer of the heat insulation tube plates 101 and enhance the stability of the connection between the heat insulation tube plates 101 and the reinforced rib plates 102 and the supporting foundation 3 (not shown in the figure). It can also be understood that, based on the heat insulation device shown in Figure 4 , the plurality of auxiliary anchor bars 105 are respectively connected to the two ends of the plurality of heat insulation tube plates 101, and the plurality of auxiliary anchor blocks 106 are fixedly arranged on the plurality of auxiliary anchor bars 105 (as shown in Figure 4 ). By using the heat insulation device in Figure 6 , the plurality of auxiliary anchor bars 105 and the plurality of auxiliary anchor blocks 106 can significantly increase the stability and strength of the connection between the heat insulation tube plates 101 and the reinforced rib plates 102 and the supporting foundation 3, and also enhance the lateral heat transfer capacity of the heat insulation device, and significantly reduce the vertical heat transfer capacity of the sodium-cooled fast reactor main equipment.

[0033] Figure 6 A schematic diagram of the installation of the heat insulation device shown in Figure 7 .

[0034] In some embodiments, the bottom of the sodium-cooled fast reactor main equipment 2 is provided with a bottom plate 201; the heat insulation device 1 is arranged on the bottom plate 201 of the sodium-cooled fast reactor main equipment 2; or the heat insulation device 1 is arranged on the supporting foundation 3. It can be understood that, the bottom plate installed at the bottom of the sodium-cooled fast reactor main equipment 2 is connected with the heat insulation device 1, and then the lateral anchor bars 103 in the heat insulation device 1 are connected with the supporting foundation 3, so as to realize the fixation of the heat insulation device and reduce the heat transfer (as shown in Figure 2 ). The heat insulation device 1 can also be arranged on the supporting foundation 3, and the lateral anchor bars 103 in the heat insulation device 1 are extended into the supporting foundation (as shown in Figure 1 ), so as to indirectly fix the sodium-cooled fast reactor main equipment 2 with the supporting foundation 3 through the heat insulation device 1 and reduce the heat transfer to the supporting foundation 3.

[0035] Further, as shown in Figure 7 and Figure 1As shown, at least one layer of heat insulation device 1 is arranged on the bottom plate 201 of the sodium-cooled fast reactor main body device 2 or on the support foundation 3, and the adjacent two layers of heat insulation device 1 are spaced apart by the support foundation 3. It can be understood that at least one layer of heat insulation device 1 can be arranged on the bottom plate 201 of the sodium-cooled fast reactor main body device 2, and the heat insulation device 1 can be connected to the bottom plate 201 of the sodium-cooled fast reactor main body device 2 in any one of the following ways: steel reinforcement binding and concrete pouring. The adjacent two layers of heat insulation device 1 can be spaced apart by the support foundation 3, which can stabilize while reducing heat transfer. Figure 7 As shown, it can be understood that the heat insulation device 1 is installed on the support foundation 3, and the heat insulation device 1 is poured with concrete to fix the lateral anchor reinforcement 103 in the heat insulation device 1. The adjacent two layers of heat insulation device 1 can also be spaced apart by the support foundation 3, and the concrete can be ordinary reinforced concrete or high-temperature-resistant concrete.

[0036] In some embodiments, the heat insulation pipe plate 101 and the reinforcing rib plate 102 are connected by screw connection or welding, or the heat insulation pipe plate 101 and the reinforcing rib plate 102 are integrally processed and formed. It can be understood that, in the actual installation or design process, the heat insulation pipe plate 101 and the reinforcing rib plate 102 are connected by screw connection or welding, which is more flexible and convenient for flexible modification according to actual needs, and is also convenient for processing or disassembly. The heat insulation pipe plate 101 and the reinforcing rib plate 102 can also be integrally processed and formed. This structure is suitable for cases where the heat insulation demand is large. For example, when the temperature of the bottom plate 201 of the sodium-cooled fast reactor main body device 2 is high, the heat insulation pipe plate 101 and the reinforcing rib plate 102 can be integrally processed and formed. At this time, the plurality of heat insulation pipe plates 101 and the plurality of reinforcing rib plates 102 are in a mutually penetrating structure. Arranging the heat insulation device 1 on the bottom plate 201 of the sodium-cooled fast reactor main body device 2 helps to reduce the heat transfer from the main body device to the support foundation and the floor, and reduces the influence of the high temperature of the main body device on the floor.

[0037] Figure 7 For Figure 8 The side view of the hollow structure of the heat insulation pipe plate in the heat insulation device.

[0038] In some embodiments, as shown in Figure 2 The heat insulation pipe plate 101 is a hollow structure, which is filled with heat insulation material or air, or can also be subjected to vacuum treatment. It can be understood that the heat insulation pipe plate 101 is designed as a hollow structure, and the hollow structure of the heat insulation pipe plate 101 is filled with heat insulation material or air with good heat insulation performance. The heat transfer coefficient is lower than that of reinforced concrete, which can effectively reduce the heat transfer from the sodium-cooled fast reactor main body device 2 to the support foundation 3 or between the support foundations.

[0039] Further, in some embodiments, the heat insulation pipe plate 101 and the reinforcing rib plate 102 are an integrated hollow structure penetrating each other, and water or air is introduced into the hollow structure for heat dissipation cooling. It can be understood that the heat insulation pipe plate 101 and the reinforcing rib plate 102 are designed to be an integrated hollow structure penetrating each other, so that the plurality of heat insulation pipe plates 101 and the plurality of reinforcing rib plates 102 penetrate each other, and the heat insulation device 1 forms an integrated structure. When water or air and the like is introduced into the hollow structure for cooling, the air or water and the like circulates in the heat insulation device to increase the lateral heat dissipation of the heat insulation device 1 while insulating, reduce the vertical heat dissipation, and thus achieve the desired insulation effect.

[0040] In some embodiments, in order to further increase the heat dissipation capacity of the heat insulation pipe plate 101 to the outside, a heat dissipation plate can also be arranged on the outer wall of the heat insulation pipe plate 101 to increase the lateral heat dissipation of the heat insulation pipe plate 101. The heat dissipation plate can be rectangular, circular, etc. (not shown in the figure).

[0041] Referring to Figure 8 Figure 1 According to another aspect of the embodiments of the present application, a sodium-cooled fast reactor is provided, comprising: a support base 3 arranged in a building (for example, on a floor of the building); a heat insulation device 1; and a sodium-cooled fast reactor main body device 2 arranged on the heat insulation device. By arranging the heat insulation device 1 between the sodium-cooled fast reactor main body device 2 and the support base 3, the heat conduction between the sodium-cooled fast reactor main body device 2 and the support base 3 can be effectively reduced, while the support strength of the support base is not affected.

[0042] In the embodiments of the present application, the specific design, manufacture and installation steps of the heat insulation device 1 are as follows:

[0043] Step one: first, the requirements of the sodium-cooled fast reactor main body device are determined, and then the size of the sodium-cooled fast reactor main body device, the size of the support base, the drawing information, the temperature field distribution of the sodium-cooled fast reactor main body device, the material properties of the assembled heat insulation device, the thermal parameters, the mechanical load information and the like are obtained.

[0044] Step two: according to the size, load and position information of the sodium-cooled fast reactor main body device support and the support base, the installation position of the heat insulation device is determined and thermal calculation is performed.

[0045] Step three: according to the results of the thermal calculation, the thermal design parameters of the heat insulation pipe plate are determined.

[0046] Step four: according to the installation position of the sodium-cooled fast reactor main body device support, the support base and the heat insulation device suitable for the sodium-cooled fast reactor of the present application, mechanical calculation is performed.

[0047] Step five: according to the mechanical calculation results, confirm the design parameters of the heat insulation tube plate, the reinforcing rib plate, the lateral anchor rib, the anchor block and the material selection.

[0048] Step six: according to the above steps one to step five, complete the design of the construction drawing of the heat insulation device suitable for the sodium-cooled fast reactor.

[0049] Step seven: according to the construction drawing provided in step four, process and manufacture.

[0050] Step eight: during the installation of the heat insulation device, it can be directly installed under the bottom plate of the sodium-cooled fast reactor main equipment according to the needs of the site, or it can be directly installed on the support foundation according to the needs of the site.

[0051] Step nine: according to the design needs, at least one layer of heat insulation device can be installed.

[0052] Step ten: during the installation process, the on-site steel binding, concrete pouring, heat insulation device embedded parts and other installation conditions need to be considered to avoid mutual interference and collision during the installation process.

[0053] The heat insulation device provided in the embodiments of the present application is installed between the sodium-cooled fast reactor main equipment and the support foundation, and at least one layer of heat insulation device is installed. The heat insulation device has poor heat conduction performance, which can effectively organize the heat dissipation of the sodium-cooled fast reactor main equipment to the support foundation, and its strength also meets the support requirements of the equipment. Through the load and heat demand calculation before construction, the composition and parameters of each component in the heat insulation device can be adjusted to meet the heat insulation requirements and provide support for its engineering application. In addition, the structure of the heat insulation device suitable for the sodium-cooled fast reactor in the embodiments of the present application is relatively simple and easy to process and manufacture, and can meet the heat transfer and support between the sodium-cooled fast reactor main equipment and the support foundation by flexibly selecting the materials, wall thickness and number of the heat insulation tube plate, the reinforcing rib plate and the lateral anchor rib strength.

[0054] The above describes the present application in detail in combination with the drawings and embodiments, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. The contents not described in detail in the present application can adopt the existing technology.

Claims

1. A heat insulating device suitable for a sodium-cooled fast reactor, the heat insulating device being provided between a sodium-cooled fast reactor main body device and a support foundation, wherein, The heat insulation device comprises: a plurality of heat insulation tube plates arranged in parallel with each other; a plurality of reinforcing rib plates connected between two adjacent heat insulation tube plates to reduce heat transfer from the sodium-cooled fast reactor main body to the support foundation, and to enhance heat dissipation and strength of the heat insulation device; a plurality of lateral anchor ribs connected outside the outermost two heat insulation tube plates and extending into the support foundation to fix the heat insulation tube plates and enhance lateral heat dissipation of the heat insulation device.

2. The device according to claim 1, further comprising: a plurality of anchor blocks fixedly arranged on the plurality of lateral anchor ribs to increase the force bearing surface between the lateral anchor ribs and the support foundation.

3. The device according to claim 1 or 2, further comprising: a plurality of auxiliary anchor ribs connected to at least one of the two ends of the plurality of heat insulation tube plates; and a plurality of auxiliary anchor blocks fixedly arranged on the plurality of auxiliary anchor ribs. A bottom plate is installed at the bottom of the sodium-cooled fast reactor main body.

4. The apparatus of claim 1 or 2, wherein, The heat insulation device is arranged on the bottom plate, or the heat insulation device is arranged on the support foundation. The heat insulation tube plates and the reinforcing rib plates are connected by screwing or welding, or the heat insulation tube plates and the reinforcing rib plates are integrally formed.

5. The apparatus of claim 1 or 2, wherein, The heat insulation tube plates are hollow structures.

6. The apparatus of claim 5, wherein, The heat insulation tube plates are filled with heat insulation materials or are filled with air.

7. The apparatus of claim 6, wherein, The heat insulation tube plates and the reinforcing rib plates are integrally hollow structures, and water or air is introduced into the hollow structures for heat dissipation and cooling.

8. The apparatus of claim 7, wherein, The outer wall of the heat insulation tube plates is further provided with heat dissipation plates to increase lateral heat dissipation of the heat insulation tube plates.

9. The apparatus of claim 1, wherein, The outer wall of the heat insulation tube plates is further provided with heat dissipation plates to increase lateral heat dissipation of the heat insulation tube plates.

Images