A high temperature gas-cooled nuclear reactor structure and nuclear power equipment

Abstract

The embodiment of the present application provides a high-temperature gas-cooled nuclear reactor structure and a nuclear power equipment, which relates to the field of nuclear energy technology, and is used to solve the problem that it is difficult for containers in related technologies to contain and support the core of a high-temperature gas-cooled nuclear reactor. The high-temperature gas-cooled nuclear reactor structure includes a shell, a core assembly, and an elastic support assembly. Among them, the core assembly is located in the shell, including a core containing fuel and a surrounding plate located on the periphery of the core, and the surrounding plate is spaced from the shell at all times to form an air-cooling channel between the surrounding plate and the shell; the elastic support assembly is arranged between the surrounding plate and the shell, and at least a portion of one side of the elastic support assembly is fixedly connected to the shell, and the other side is against the surrounding plate. The high-temperature gas-cooled nuclear reactor structure provided in the embodiment of the present application is used for conducting nuclear reactions.

Description

Technical Field

[0001] The present application relates to the field of nuclear energy technology, and in particular to a high-temperature gas-cooled nuclear reactor structure and a nuclear power device. Background Art

[0002] High temperature gas-cooled nuclear reactors use cooling gas such as high temperature inert cooling gas or high temperature air to cool the core. The core, that is, the core of a nuclear reactor, is also called the active area of ​​a nuclear reactor. The core of a high temperature gas-cooled nuclear reactor is formed by a certain accumulation of nuclear fuel, and the cooling gas passes through the gaps between the nuclear fuels to cool the nuclear fuels. The heat exchange capacity of the cooling gas is relatively weak. Compared with liquid-cooled reactors, the heat of the core of a high temperature gas-cooled nuclear reactor is not easy to be released, and the core temperature is relatively high. However, the containers in the related art are difficult to meet the requirements for the containment and support of the core of a high temperature gas-cooled nuclear reactor. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a high-temperature gas-cooled nuclear reactor structure and a nuclear power equipment to solve the problem that the container in the related art is difficult to meet the requirements for core containment and support of the high-temperature gas-cooled nuclear reactor.

[0004] To achieve the above-mentioned purpose, the first aspect of the present application provides a high-temperature gas-cooled nuclear reactor structure, including a shell, a core assembly and an elastic support assembly. The core assembly is located in the shell, including a core containing fuel and a shroud located outside the core, the shroud is spaced from the shell at all times to form an air-cooling channel between the shroud and the shell; the elastic support assembly is arranged between the shroud and the shell, at least a portion of one side of the elastic support assembly is fixedly connected to the shell, and the other side abuts against the shroud.

[0005] Furthermore, the elastic support component extends along the flow direction of the cooling air in the air-cooling channel, and the front end of the elastic support component along the flow direction of the cooling air is fixedly connected to the shell.

[0006] Furthermore, the elastic support assembly includes a plurality of elastic members, the plurality of elastic members are distributed along the circumference of the enclosure, and each elastic member extends along the flow direction of the cooling air.

[0007] Furthermore, the elastic member is a plate-like structure, and two side surfaces of the elastic member face the enclosure and the shell respectively. The elastic member has a curvature so that one side surface of the elastic member abuts against the shell and the other side surface abuts against the enclosure.

[0008] Furthermore, the elastic member is a wavy plate-like structure, each wave crest of the wavy plate-like structure abuts against the shell, and each wave trough of the wavy plate-like structure abuts against the enclosure.

[0009] Furthermore, the enclosure is formed by bending a corrugated plate, and the corrugations of the corrugated plate extend along the extension direction of the air-cooling channel.

[0010] Furthermore, the elastic support assembly includes a first elastic support member and a second elastic support member, one side of the first elastic support member is fixedly connected to the shell, and the other side abuts against the crest of the corrugated plate, one side of the second elastic support member is fixedly connected to the shell, and the other side abuts against the trough of the corrugated plate, only one first elastic support member is arranged between two adjacent troughs of the corrugated plate, and only one second elastic support member is arranged between two adjacent crests of the corrugated plate.

[0011] Furthermore, the high-temperature gas-cooled nuclear reactor structure also includes a compensation block, one side of the compensation block is fixedly connected to the inner wall of the shell, there are multiple compensation blocks, and the multiple compensation blocks are arranged one-to-one with the multiple second elastic support members. The second elastic support member is fixedly connected to the other side of the corresponding compensation block, and the side of the compensation block connected to the shell and the side of the compensation block connected to the second elastic support member are arranged radially along the shell, and the two sides of the first elastic support member are respectively against the shell and the enclosure.

[0012] Furthermore, each compensation block is provided with a keyway, and the inner wall of the shell is provided with a plurality of connecting keys corresponding to the plurality of keyways, each connecting key is connected to the corresponding keyway key, and the connecting keys extend along the extension direction of the air cooling channel.

[0013] Furthermore, one end of the compensation block connected to the second elastic support member is located between the crest and the trough of the corrugated plate.

[0014] A second aspect of the present application provides a nuclear power device, comprising any one of the above-mentioned high-temperature gas-cooled nuclear reactor structures.

[0015] The high-temperature gas-cooled nuclear reactor structure provided in the embodiment of the present application has a core contained by two layers of containers, namely, the shroud and the shell. The shroud and the shell are spaced at various places to form an air-cooling channel, so that the cooling gas will also flow in the air-cooling channel during the process of cooling the core. The shroud and the shell will be cooled by the cooling gas flowing in the air-cooling channel, which can meet the requirements for containing the high-temperature core. In addition, when the temperature of the core rises, the elastic support assembly will lose its rigidity under the influence of high temperature, and the elastic support assembly will be more easily deformed. Moreover, when the temperature of the core rises, the flow rate of the cooling gas will increase, and the flow rate of the cooling gas will increase mainly to cool the core. When the flow rate of the cooling gas increases, the airflow pressure of the cooling gas will also increase, and the airflow of the cooling gas will exert a strong force on the elastic support assembly. When the elastic support assembly loses its rigidity due to high temperature, the elastic support assembly will deform. Because one side of the elastic support assembly is fixedly connected to the shell, and the other side is against the coaming, when the elastic support assembly is deformed due to the airflow pressure of the cooling gas, the other side of the elastic support assembly will separate from the coaming, and the cooling gas will pass through the gap between the other side of the elastic support assembly and the coaming, which will increase the flow space of the cooling gas in the air-cooling channel, thereby increasing the flow rate of the cooling gas in the air-cooling channel. Therefore, when the temperature of the core rises, the flow rate of the cooling gas in the air-cooling channel will increase, which can enhance the cooling effect on the coaming and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a high temperature gas-cooled nuclear reactor structure in an embodiment of the present application;

[0017] Figure 2 It is a schematic structural diagram of the first perspective of the assembly of the housing, the elastic support assembly and the enclosure in the embodiment of the present application;

[0018] Figure 3 A schematic diagram of the structure of the housing, the elastic support assembly and the enclosure assembly from a second perspective in an embodiment of the present application;

[0019] Figure 4 It is a structural schematic diagram of a high temperature gas-cooled nuclear reactor structure in another embodiment of the present application;

[0020] Figure 5 This is a schematic structural diagram of the assembly of a housing, an elastic support assembly and a panel in another embodiment of the present application;

[0021] Figure 6 It is a schematic diagram of the assembly of the shell, elastic support component and enclosure in the comparative example.

[0022] Reference numerals:

[0023] 1-shell; 11-connecting key; 2-core assembly; 21-core; 22-shroud; 221-wave crest; 222-wave trough; 3-elastic support assembly; 31-first elastic support member; 32-second elastic support member; 4-compensation block; 5-air-cooling channel; a-flow direction of cooling gas. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0025] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0026] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0027] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0028] In the embodiments of the present application, the terms "include", "comprises" 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 includes 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 "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0029] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0030] The embodiment of the present application provides a nuclear power device, including a high-temperature gas-cooled nuclear reactor structure. Nuclear power equipment is a device that uses nuclear fuel nuclear reaction to generate heat energy and converts the heat energy into energy in the form of electrical energy or mechanical energy. Nuclear power equipment using high-temperature gas-cooled nuclear reactors uses cooling gas such as high-temperature inert cooling gas or high-temperature air to cool the nuclear fuel in the nuclear reactor. The cooling gas absorbs the nuclear fuel in the nuclear reactor and its temperature rises. The cooling gas with increased temperature can be cooled by a steam generator and used again to cool the nuclear reactor. The steam generator after absorbing heat can generate steam, and the steam can drive the steam turbine generator to generate electricity through a steam turbine generator. The cooling gas with increased temperature can also directly convert heat energy into mechanical energy of the steam turbine through a steam turbine, and the mechanical energy of the steam turbine can be directly used to drive the propeller of an aircraft to rotate, etc.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3The high-temperature gas-cooled nuclear reactor structure provided in the embodiment of the present application includes a shell 1, a core assembly 2 and an elastic support assembly 3. The core assembly 2 is located in the shell 1, including a core 21 containing fuel and a shroud 22 located outside the core 21, and the shroud 22 is spaced from the shell 1 everywhere so that an air-cooling channel 5 is formed between the shroud 22 and the shell 1; the elastic support assembly 3 is arranged between the shroud 22 and the shell 1, and at least a part of one side of the elastic support assembly 3 is fixedly connected to the shell 1, and the other side is against the shroud 22. In this structural form, the core 21 is contained by two layers of containers, namely the shroud 22 and the shell 1, and the shroud 22 and the shell 1 are spaced from each other to form an air-cooling channel 5, so that the cooling gas will also flow in the air-cooling channel 5 during the cooling process of the core 21, and the shroud 22 and the shell 1 will be cooled by the cooling gas flowing in the air-cooling channel 5, which can meet the requirements of containing the high-temperature core 21. The elastic support assembly 3 is arranged between the shroud 22 and the shell 1. When the core 21 expands due to heat, the shroud 22 will expand accordingly, and the other side of the elastic support assembly 3 can move away from the shroud 22 under the extrusion of the shroud 22; when the core 21 shrinks due to temperature drop, the shroud 22 will shrink accordingly, and the elastic support assembly 3 will rebound and move toward the shroud 22. In this way, the elastic support assembly 3 can meet the requirements of the stable support of the shroud 22 and the shell 1 when the core 21 expands or shrinks due to temperature changes. In addition, when the temperature of the core 21 rises, the elastic support assembly 3 will become less rigid under the influence of high temperature, and the elastic support assembly 3 will be more easily deformed. Moreover, when the temperature of the core 21 rises, the flow rate of the cooling gas will increase. The increase in the flow rate of the cooling gas is mainly to cool down the core 21. This has been disclosed in the relevant technology, and the specific details will not be repeated. When the flow rate of the cooling gas increases, the airflow pressure of the cooling gas will increase, and the airflow pressure of the cooling gas will produce a strong force on the elastic support assembly 3. When the elastic support assembly 3 decreases in stiffness due to high temperature, the elastic support assembly 3 will deform. Because one side of the elastic support assembly 3 is fixedly connected to the shell 1, and the other side is against the shroud 22, when the elastic support assembly 3 is deformed due to the airflow pressure of the cooling gas, the other side of the elastic support assembly 3 is separated from the shroud 22. On this basis, the cooling gas will pass through the gap between the other side of the elastic support assembly 3 and the shroud 22, which will increase the flow space of the cooling gas in the air-cooling channel 5, and then increase the flow rate of the cooling gas in the air-cooling channel 5. Therefore, when the temperature of the core 21 increases, the flow rate of the cooling gas in the air-cooling channel 5 will increase, which can enhance the cooling effect on the shroud 22 and the shell 1.

[0032] It should be noted that the supporting effect of the elastic support assembly 3 between the enclosure 22 and the shell 1 makes the enclosure 22 and the shell 1 spaced apart at all places.

[0033] In order to enable the shroud 22 to have a better effect of expanding or contracting with the temperature change of the core 21 , the thickness of the shroud 22 is relatively thinner than that of the shell 1 .

[0034] In some embodiments, the elastic support component 3 is made of nickel-based steel.

[0035] For further information, please refer to Figure 1 , Figure 2 and Figure 3 , the elastic support component 3 extends along the flow direction a of the cooling air, and the front end of the elastic support component 3 along the flow direction a of the cooling air in the air-cooling channel 5 is fixedly connected to the shell 1. In such a structural form, the elastic support component 3 extends along the flow direction a of the cooling air, so that the support area of ​​the elastic support component 3 between the enclosure 22 and the shell 1 is larger, and the elastic support component 3 can provide more stable support to the shell 1 and the enclosure 22. The front end of the elastic support component 3 along the flow direction a of the cooling air is fixedly connected to the shell 1, so that a gap is generated between the elastic support component 3 and the enclosure 22 under the action of the flow pressure of the cooling air.

[0036] It should be noted that the extension direction of the elastic support component 3 is from the front end of the elastic support component 3 along the flow direction a of the cooling air to the rear end.

[0037] It should be noted that if the rear end of the elastic support component 3 along the flow direction a of the cooling gas is fixedly connected to the shell 1, under the action of the flow pressure of the cooling gas, the front end of the elastic support component 3 may approach the rear end, that is, the elastic support component 3 is compressed, and the compressed elastic support component 3 may block the air cooling channel 5.

[0038] For further information, please refer to Figure 1 , Figure 2 and Figure 3 The elastic support assembly 3 includes a plurality of elastic members, and the plurality of elastic members (refer to the first elastic support member 31 and the second elastic support member 32 in the figure, which is an embodiment thereof) are distributed along the circumference of the enclosure 22, and each elastic member extends along the flow direction a of the cooling air. In this structural form, the elastic support assembly 3 is separated into a plurality of elastic members, and during the expansion or contraction of the enclosure 22, the plurality of elastic members will not interfere with each other, so that the elastic support assembly 3 will not cause a significant obstacle to the expansion or contraction of the enclosure 22.

[0039] It should be noted that the circumferential direction of the enclosure 22 is perpendicular to the flow direction a of the cooling air.

[0040] In some embodiments, in order to make the elastic members support the shell 1 and the enclosure 22 more stably, a plurality of elastic members are evenly distributed along the circumference of the enclosure 22 .

[0041] For further information, please refer to Figure 1 , Figure 2 and Figure 3 The elastic member is a plate-like structure, and the two sides of the elastic member face the enclosure 22 and the shell 1 respectively. The elastic member has a curvature so that one side of the elastic member abuts against the shell 1, and the other side abuts against the enclosure 22. In such a structural form, the elastic member has a curvature, which, on the one hand, enables the elastic member to support the shell 1 and the enclosure 22, and on the other hand, enables the elastic member to stretch under the pressure of the cooling air flow or the extrusion of the expansion of the enclosure 22, and the curvature becomes smaller, thereby causing the end of the elastic member abutting against the enclosure 22 to move toward the shell 1. In addition, the curvature of the elastic member reduces the contact area between the two sides of the elastic member and the enclosure 22 or the shell 1, thereby reducing the heat transfer efficiency between the enclosure 22 and the shell 1, and can reduce the temperature of the shell 1.

[0042] It should be noted that the side of the elastic member abutting against the enclosure 22 is not connected to the enclosure 22, that is, the side of the elastic member abutting against the enclosure 22 can be separated from the enclosure 22. Among the sides of the elastic member abutting against the shell 1, the front end of the elastic member along the flow direction of the cooling air is fixedly connected to the shell 1, and the rest of the elastic member can be separated from the shell 1.

[0043] It should be noted that if the plate-like structure is linear, that is, the plate-like structure has no curvature, the two side surfaces of the plate-like structure will be completely in contact with the enclosure 22 or the shell 1, the heat transfer efficiency between the enclosure 22 and the shell 1 will be greater, and the temperature of the shell 1 will be higher.

[0044] In order to make the pressure of the cooling air flow have a stronger effect on the elastic member, the elastic member can be bent in a direction perpendicular to the flow of the cooling air.

[0045] For further information, please refer to Figure 1 , Figure 2 and Figure 3 The elastic member is a wavy plate structure, each wave crest of the wavy plate structure abuts against the shell 1, and each wave trough of the wavy plate structure abuts against the enclosure 22. Such a structural form makes the elastic member support the enclosure 22 and the shell 1 more stably.

[0046] In some embodiments, the elastic member may also be a spirally bent plate-like structure. With such a structural form, one side of the elastic member abuts against both the shell 1 and the enclosure 22, while the other side of the elastic member may not contact either the shell 1 or the enclosure 22. The spirally bent plate-like structure can also be stretched under the pressure of the cooling air flow or the extrusion of the expansion of the enclosure 22, so that the side of the spirally bent plate-like structure abutting against the enclosure 22 moves away from the enclosure 22. In addition, the contact area between the spirally bent plate-like structure and the enclosure 22 and the shell 1 is also small, which can also reduce the heat transfer efficiency between the enclosure 22 and the shell 1.

[0047] It should be noted that the two side surfaces of the plate-like structure refer to the two side surfaces with larger areas and opposite to each other among the multiple side surfaces of the plate-like structure. The two sides of the plate-like structure refer to the two sides of the plate-like structure in the radial direction of the shell 1, and the two sides of the plate-like structure are respectively against the enclosure 22 and the shell 1. The two side surfaces of the plate-like structure are not the same as the two sides of the plate-like structure.

[0048] It should be noted that the radial direction of the shell 1 is directed from the enclosure 22 to the shell 1 , and the radial direction of the shell 1 is perpendicular to the flow direction a of the cooling air in the air-cooling channel 5 .

[0049] In some embodiments, the elastic member may not be a plate-shaped structure. The elastic member may be a sheet-shaped structure, a rod-shaped structure, a wire-shaped structure or other structures extending along the flow direction of the cooling air, as long as the elastic member has a curvature and supports the enclosure 22 and the housing 1 in the curvature direction.

[0050] In some embodiments, please refer to Figure 4 and Figure 5 The multiple elastic members may also be a whole, and the multiple elastic members are sequentially connected to form a cylindrical structure. That is, the elastic support assembly 3 is a cylindrical structure formed by bending a corrugated sheet, the core assembly 2 is located in the cylindrical structure, and the extension direction of the cylindrical structure is the flow direction a of the cooling gas.

[0051] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The enclosure 22 is formed by bending a corrugated plate, and the corrugations of the corrugated plate extend along the extension direction of the air cooling channel. With such a structural form, the corrugations of the corrugated plate can compensate for the expansion and contraction of the enclosure 22, so that the enclosure 22 has a large deformation capacity. Of course, in some other embodiments, the corrugations of the corrugated plate can also extend in other directions.

[0052] It should be noted that the extension direction of the air-cooling channel is the flow direction a of the cooling air.

[0053] For further information, please refer to Figure 1 , Figure 2 and Figure 3 The elastic support assembly 3 includes a first elastic support member 31 and a second elastic support member 32. One side of the first elastic support member 31 is fixedly connected to the shell 1, and the other side abuts against the wave crest 221 of the corrugated plate. One side of the second elastic support member 32 is fixedly connected to the shell 1, and the other side abuts against the wave valley 222 of the corrugated plate. Only one first elastic support member 31 is arranged between two adjacent wave valleys 222 of the corrugated plate, and only one second elastic support member 32 is arranged between two adjacent wave crests 221 of the corrugated plate. With such a structural form, the elastic support assembly 3 can provide relatively stable support for the enclosure 22.

[0054] In order to make the elastic support assembly 3 provide more stable support for the enclosure 22, in some embodiments, a first elastic support member 31 is provided between every two adjacent troughs 222 of the corrugated plate, and a second elastic support member 32 is provided between every two adjacent peaks 221 of the corrugated plate.

[0055] Please note that, please refer to Figure 6 , the distance between the crest 221 of the corrugated plate and the shell 1 is small, and the distance between the trough 222 of the corrugated plate and the shell 1 is large. If one side of the first elastic support member 31 abuts against the shell 1, and the other side abuts against the trough 222 of the corrugated plate, and one side of the second elastic support member 32 abuts against the shell 1, and the other side abuts against the trough 222 of the corrugated plate, the length difference between the second elastic support member 32 and the first elastic support member 31 in the radial direction of the shell 1 is large. When the temperature of the core 21 increases, the cooling gas pressure in the air-cooling channel 5 increases, and the first elastic support member 31 and the second elastic support member 32 undergo elastic deformation. The large length difference between the first elastic support member 31 and the second elastic support member 32 in the radial direction of the shell 1 may cause a large difference in the deformation distance between the first elastic support member 31 and the second elastic support member 32, which will affect the stability of the first elastic support member 31 and the second elastic support member 32 in supporting the core assembly 2.

[0056] Therefore, in some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The high temperature gas-cooled nuclear reactor structure also includes a compensation block 4, one side of which is fixedly connected to the inner wall of the shell 1. There are multiple compensation blocks 4, and the compensation blocks 4 are arranged one by one with the second elastic support member 32. The second elastic support member 32 is fixedly connected to the other side of the corresponding compensation block 4. The side of the compensation block 4 connected to the shell 1 and the side of the compensation block 4 connected to the second elastic support member 32 are arranged radially along the shell 1, and the two sides of the first elastic support member 31 are respectively against the shell 1 and the enclosure 22. In such a structural form, the length of the second elastic support member 32 in the radial direction of the shell 1 can be adjusted by the length of the compensation block 4 in the radial direction of the shell 1, so that the difference in the radial length of the first elastic support member 31 and the second elastic support member 32 in the shell 1 is within a reasonable range, so that when the first elastic support member 31 and the second elastic support member 32 are deformed, they can still provide relatively stable support to the enclosure 22 and the shell 1.

[0057] It should be noted that the elasticity of the compensation block 4 is much smaller than the elasticity of the first elastic support member 31 and the second elastic support member 32 .

[0058] There are many ways to implement the fixed connection between the compensation block 4 and the shell 1, such as screw connection, bolt connection, stud connection, clamping, welding and key connection. In order to make the stress condition better, a key connection is adopted. Specifically, in one embodiment, each compensation block 4 is provided with a keyway, and the inner wall of the shell 1 is provided with a plurality of connecting keys 11 corresponding to the plurality of keyways, and each connecting key 11 is key-connected with the corresponding keyway, and the connecting key 11 extends along the flow direction a of the cooling air. In such a structural form, the connecting key 11 extends along the extension direction of the air-cooling channel 5. When the flow pressure of the cooling air acts on the compensation block 4, the connecting key 11 and the keyway can slide relative to each other for buffering, so that the stress condition at the connection between the compensation block 4 and the shell 1 is better. Of course, in some other embodiments, the connecting key 11 can also be provided on the compensation block 4, and the inner wall of the shell 1 is provided with a plurality of keyways corresponding to the plurality of connecting keys 11.

[0059] It should be noted that, although relative sliding can occur between the connecting key 11 and the key slot, the relative sliding distance between the connecting key 11 and the key slot is relatively small, so the key connection between the connecting key 11 and the key slot can still be considered as a fixed connection.

[0060] During the assembly process of the high temperature gas-cooled nuclear reactor structure, the core assembly 2 is first placed in the shell 1, and then the assembly of the compensation block 4 and the second elastic support member 32 and the first elastic support member 31 are inserted into the air cooling channel 5 along the extension direction of the air cooling channel 5, and finally the compensation block 4 and the first elastic support member 31 are fixedly connected to the shell 1. On the basis that the compensation block 4 is connected to the shell 1 through the connecting key 11, and the connecting key 11 extends along the extension direction of the air cooling channel 5, the compensation block 4 is inserted into the shell 1 to complete the fixed connection with the shell 1, and the installation process is convenient.

[0061] It should be noted that the extension direction of the air cooling channel 5 is the same as the flow direction a of the cooling air.

[0062] In some embodiments, the first elastic support member 31 is welded to the housing 1 , and the second elastic support member 32 is welded to the compensation block 4 .

[0063] Furthermore, one end of the compensation block 4 connected to the second elastic support member 32 is located between the crest 221 and the trough 222 of the corrugated plate. With such a structural form, the corrugations of the corrugated plate can limit the compensation block 4, making the connection between the compensation block 4 and the housing 1 more stable.

[0064] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3, the first elastic support member 31 and / or the second elastic support member 32 may be a structure similar to an elastic member. That is, the first elastic support member 31 and / or the second elastic support member 32 may be a strip-shaped structure extending along the flow direction a of the cooling air. On this basis, the first elastic support member 31 and / or the second elastic support member 32 may also be a wave-shaped structure, a spiral structure, a plate-shaped structure with a curvature, a rod-shaped structure with a curvature, or a wire-shaped structure with a curvature, etc.

[0065] For further information, please refer to Figure 1 , Figure 2 and Figure 3 On the basis that the second elastic support member 32 extends along the flow direction a of the cooling gas, the compensation block 4 can extend along the flow direction a of the cooling gas, and the front end of the second elastic support member 32 along the flow direction a of the cooling gas is fixedly connected to the compensation block 4.

[0066] For further information, please refer to Figure 1 , Figure 2 and Figure 3 On the basis that the second elastic support member 32 is a wave-shaped structure, a spiral structure, a plate-shaped structure with a curvature, a rod-shaped structure with a curvature, or a filament-shaped structure with a curvature, the compensation block 4 extends along the flow direction a of the cooling air, and one side of the second elastic support member 32 abuts against the compensation block 4, and the other side abuts against the enclosure 22. When the second elastic support member 32 is extended under the pressure of the cooling air flow or the extrusion of the expansion of the enclosure 22, the side of the second elastic support member 32 abutting against the enclosure 22 moves toward the direction close to the housing 1.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high temperature gas-cooled nuclear reactor structure, characterized in that: include: case; a core assembly located in the shell, comprising a core containing fuel and a shroud located at the periphery of the core, the shroud being spaced from the shell at various locations so as to form an air-cooling passage between the shroud and the shell; An elastic support assembly is arranged between the enclosure and the shell, at least a portion of one side of the elastic support assembly is fixedly connected to the shell, and the other side of the elastic support assembly abuts against the enclosure; The enclosure is formed by bending a corrugated plate, and the corrugations of the corrugated plate extend along the extension direction of the air-cooling channel; the elastic support component extends along the flow direction of the cooling air in the air-cooling channel, and the front end of the elastic support component along the flow direction of the cooling air is fixedly connected to the shell; The elastic support assembly includes a plurality of elastic members, the plurality of elastic members are distributed along a side of the enclosure plate toward the shell, and each of the elastic members extends along the flow direction of the cooling air; The elastic member is a plate-like structure, and the two side surfaces of the elastic member face the enclosure and the shell respectively. The elastic member has a curvature so that one side surface of the elastic member abuts against the shell and the other side surface abuts against the enclosure.

2. The high temperature gas-cooled nuclear reactor structure according to claim 1, characterized in that: The elastic member is a wavy plate-like structure, each wave crest of the wavy plate-like structure abuts against the shell, and each wave trough of the wavy plate-like structure abuts against the enclosure.

3. The high temperature gas-cooled nuclear reactor structure according to claim 1, characterized in that: The elastic support assembly includes a first elastic support member and a second elastic support member, one side of the first elastic support member is fixedly connected to the shell, and the other side abuts against the crest of the corrugated plate, one side of the second elastic support member is fixedly connected to the shell, and the other side abuts against the trough of the corrugated plate, only one first elastic support member is arranged between two adjacent troughs of the corrugated plate, and only one second elastic support member is arranged between two adjacent crests of the corrugated plate.

4. The high temperature gas-cooled nuclear reactor structure according to claim 3, characterized in that: The high-temperature gas-cooled nuclear reactor structure also includes a compensation block, one side of which is fixedly connected to the inner wall of the shell, and there are multiple compensation blocks. The multiple compensation blocks are arranged in a one-to-one correspondence with the multiple second elastic support members, and the second elastic support member is fixedly connected to the other side of the corresponding compensation block. The side of the compensation block connected to the shell and the side of the compensation block connected to the second elastic support member are arranged radially along the shell, and the two sides of the first elastic support member are respectively against the shell and the enclosure.

5. The high temperature gas-cooled nuclear reactor structure according to claim 4, characterized in that: Each of the compensation blocks is provided with a keyway, and the inner wall of the shell is provided with a plurality of connecting keys corresponding to the plurality of keyways, each of the connecting keys is connected to the corresponding keyway key, and the connecting keys extend along the flow direction of the cooling air.

6. The high temperature gas-cooled nuclear reactor structure according to claim 4, characterized in that: One end of the compensation block connected to the second elastic support member is located between the crest and the trough of the corrugated plate.

7. A nuclear power plant, characterized in that: The invention comprises a high temperature gas-cooled nuclear reactor structure as described in any one of claims 1 to 6.

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