阅读说明：本技术 一种高温气冷核反应堆结构及核动力设备 (High-temperature gas-cooled nuclear reactor structure and nuclear power equipment ) 是由 杨夷 李龙 于莲韵 于 2021-08-30 设计创作，主要内容包括：本申请实施例提供一种高温气冷核反应堆结构及核动力设备,涉及核能技术领域,用于解决相关技术中的容器很难对高温气冷核反应堆的堆芯进行包容与支撑问题。高温气冷核反应堆结构包括壳体、堆芯组件和弹性支撑组件。其中,堆芯组件位于壳体内,包括包含燃料的堆芯和位于堆芯外围的围板,围板与壳体处处间隔,以使围板与壳体之间形成气冷通道；弹性支撑组件设置在围板和壳体之间,弹性支撑组件的一侧至少有一部分与壳体固定连接,另一侧与围板抵靠。本申请实施例提供的高温气冷核反应堆结构用于进行核反应。(The embodiment of the application provides a high-temperature gas-cooled nuclear reactor structure and nuclear power equipment, relates to the technical field of nuclear energy, and is used for solving the problem that a container in the related technology is difficult to contain and support a reactor core of the high-temperature gas-cooled nuclear reactor. A high temperature gas cooled nuclear reactor structure includes a housing, a core assembly, and a resilient support assembly. The reactor core assembly is positioned in the shell and comprises a reactor core containing fuel and a surrounding plate positioned on the periphery of the reactor core, and the surrounding plate and the shell are spaced at intervals so that an air cooling channel is formed between the surrounding plate and the shell; the elastic support component is arranged between the coaming and the shell, at least one part of one side of the elastic support component is fixedly connected with the shell, and the other side of the elastic support component is abutted against the coaming. The high-temperature gas-cooled nuclear reactor structure provided by the embodiment of the application is used for carrying out nuclear reaction.)

1. A high temperature gas cooled nuclear reactor structure, comprising:

a housing;

a core assembly located within the housing and including a core containing fuel and a shroud located around the core, the shroud being spaced from the housing to form an air cooling channel between the shroud and the housing;

the elastic support component is arranged between the enclosing plate and the shell, at least one part of one side of the elastic support component is fixedly connected with the shell, and the other side of the elastic support component is abutted against the enclosing plate.

2. The high temperature gas cooled nuclear reactor structure of claim 1, wherein the elastic support assembly extends in a flow direction of the cooling gas in the gas cooled channel, and a front end of the elastic support assembly in the flow direction of the cooling gas is fixedly connected to the housing.

3. The high temperature gas cooled nuclear reactor structure of claim 2, wherein the resilient support assembly comprises a plurality of resilient members circumferentially distributed about the shroud, each resilient member extending in the direction of flow of the cooling gas.

4. The structure of claim 3, wherein the elastic member is a plate-shaped structure, two sides of the elastic member face the shroud and the shell, respectively, and the elastic member has a curvature such that one side of the elastic member abuts against the shell and the other side abuts against the shroud.

5. The high temperature gas cooled nuclear reactor structure as claimed in claim 4, wherein the elastic member is a corrugated plate structure, each peak of the corrugated plate structure abutting the shell and each valley of the corrugated plate structure abutting the shroud.

6. A high temperature gas cooled nuclear reactor structure as claimed in any one of claims 1 to 5, wherein the shroud is formed by bending corrugated sheets, the corrugations of the sheets extending in the direction of extension of the gas cooling channels.

7. The high temperature gas cooled nuclear reactor structure of claim 6, wherein the resilient support assembly comprises a first resilient support member and a second resilient support member, the first resilient support member having one side fixedly connected to the shell and the other side abutting against the peaks of the corrugated plates, the second resilient support member having one side fixedly connected to the shell and the other side abutting against the valleys of the corrugated plates, only one first resilient support member being disposed between two adjacent valleys of the corrugated plates, and only one second resilient support member being disposed between two adjacent peaks of the corrugated plates.

8. The structure of claim 7, further comprising a plurality of compensation blocks, wherein one side of each compensation block is fixedly connected to an inner wall of the casing, the plurality of compensation blocks are arranged in one-to-one correspondence with the plurality of second elastic supports, the second elastic supports are fixedly connected to the other sides of the corresponding compensation blocks, one side of each compensation block connected to the casing and one side of each compensation block connected to the second elastic support are arranged along a radial direction of the casing, and two sides of the first elastic support abut against the casing and the surrounding plate respectively.

9. The structure of a high temperature gas cooled nuclear reactor as set forth in claim 8, wherein each of the compensation blocks is provided with a key groove, the inner wall of the casing is provided with a plurality of connection keys corresponding to the plurality of key grooves, each of the connection keys is keyed with the corresponding key groove, and the connection key extends along the extending direction of the gas cooling passage.

10. The high temperature gas cooled nuclear reactor structure of claim 8, wherein an end of the compensation block connected to the second elastic support is located between peaks and valleys of the corrugated plates.

11. A nuclear power plant comprising a high temperature gas cooled nuclear reactor structure as claimed in any one of claims 1 to 10.

Technical Field

The application relates to the technical field of nuclear energy, in particular to a high-temperature gas-cooled nuclear reactor structure and nuclear power equipment.

Background

The high temperature gas cooled nuclear reactor uses cooling gas such as high temperature inert cooling gas or high temperature air to cool the reactor core. The core of a high temperature gas cooled nuclear reactor is formed by accumulating a certain amount of nuclear fuel, and the nuclear fuel is cooled by a cooling gas passing through a gap between the nuclear fuel. The heat exchange capacity of the cooling gas is weak, compared with a liquid-cooled reactor, the heat of the core of the high-temperature gas-cooled nuclear reactor is not easy to release, the core temperature is high, and the vessel in the related technology is difficult to meet the requirements for the core containing and supporting of the high-temperature gas-cooled nuclear reactor.

Disclosure of Invention

In view of this, embodiments of the present disclosure provide a high temperature gas cooled nuclear reactor structure and a nuclear power plant, so as to solve the problem that the vessel in the related art is difficult to meet the requirement for the core containment and support of the high temperature gas cooled nuclear reactor.

In order to achieve the above objects, a first aspect of the present application provides a high temperature gas cooled nuclear reactor structure, which includes a housing, a core assembly, and an elastic support assembly. The reactor core assembly is positioned in the shell and comprises a reactor core containing fuel and a surrounding plate positioned on the periphery of the reactor core, and the surrounding plate and the shell are spaced at intervals so that an air cooling channel is formed between the surrounding plate and the shell; the elastic support component is arranged between the coaming and the shell, at least one part of one side of the elastic support component is fixedly connected with the shell, and the other side of the elastic support component is abutted against the coaming.

Furthermore, the elastic support component extends along the flowing direction of the cooling air in the air cooling channel, and the front end of the elastic support component along the flowing direction of the cooling air is fixedly connected with the shell.

Further, the elastic support assembly comprises a plurality of elastic pieces, the elastic pieces are distributed along the circumferential direction of the enclosing plate, and each elastic piece extends along the flowing direction of the cooling air.

Furthermore, the elastic part is of a plate-shaped structure, two side faces of the elastic part face the enclosing plate and the shell respectively, and the elastic part is provided with bending degrees, so that one side face of the elastic part is abutted against the shell, and the other side face of the elastic part is abutted against the enclosing plate.

Further, the elastic piece is of a wavy plate-shaped structure, each wave crest of the wavy plate-shaped structure is abutted against the shell, and each wave trough of the wavy plate-shaped structure is abutted against the surrounding plate.

Furthermore, the bounding wall is enclosed by the buckled of buckled plate, and the ripple line of buckled plate extends along air cooling passageway extending direction.

Further, the elastic support component comprises a first elastic support piece and a second elastic support piece, one side of the first elastic support piece is fixedly connected with the shell, the other side of the first elastic support piece is abutted against the wave crests of the corrugated plate, one side of the second elastic support piece is fixedly connected with the shell, the other side of the second elastic support piece is abutted against the wave troughs of the corrugated plate, only one first elastic support piece is arranged between two adjacent wave troughs of the corrugated plate, and only one second elastic support piece is arranged between two adjacent wave crests of the corrugated plate.

Furthermore, the high-temperature gas-cooled nuclear reactor structure also comprises a plurality of compensation blocks, one side of each compensation block is fixedly connected with the inner wall of the shell, the plurality of compensation blocks are arranged in one-to-one correspondence with the plurality of second elastic supporting pieces, the second elastic supporting pieces are fixedly connected with the other sides of the corresponding compensation blocks, one side of each compensation block connected with the shell and one side of each compensation block connected with the second elastic supporting piece are arranged along the radial direction of the shell, and two sides of each first elastic supporting piece are respectively abutted against the shell and the surrounding plate.

Further, every compensation piece all is provided with the keyway, and shells inner wall corresponds a plurality of keyways and is provided with a plurality of connection key, every connection key all with the keyway key-type connection that corresponds, the connection key extends along air-cooled passageway extending direction.

Further, one end of the compensation block, which is connected with the second elastic supporting piece, is positioned between the wave crest and the wave trough of the corrugated plate.

A second aspect of the present application provides a nuclear power plant including a high temperature gas cooled nuclear reactor structure as described in any one of the above.

According to the high-temperature gas-cooled nuclear reactor structure provided by the embodiment of the application, the reactor core is contained by the two layers of containers, namely the enclosing plate and the shell, and the enclosing plate and the shell are arranged at intervals to form the gas-cooled channel, so that cooling gas can flow in the gas-cooled channel in the process of cooling the reactor core, the enclosing plate and the shell can be cooled by the cooling gas flowing in the gas-cooled channel, and the requirement on high-temperature reactor core containing can be met. In addition, when the temperature of the core rises, the elastic support assembly becomes less rigid under the influence of high temperature, and the elastic support assembly is more easily deformed. When the temperature of the core rises, the flow rate of the cooling gas increases, and the flow rate of the cooling gas increases mainly to lower the temperature of the core. When the flow of cooling gas grow, the airflow pressure of cooling gas also can grow, and the airflow of cooling gas can produce stronger effort to the elastic support subassembly, and under the circumstances that the elastic support subassembly becomes little because of high temperature rigidity, the elastic support subassembly can take place deformation. And because one side of the elastic support component is fixedly connected with the shell, and the other side of the elastic support component is abutted against the enclosing plate, when the elastic support component deforms due to the airflow pressure of the cooling air, the other side of the elastic support component can be separated from the enclosing plate, and the cooling air can pass through a gap between the other side of the elastic support component and the enclosing plate on the basis, so that the flowing space of the cooling air in the air cooling channel is enlarged, and further the flow of the cooling air in the air cooling channel is enlarged. Therefore, when the temperature of the core rises, the flow rate of the cooling gas in the air-cooling passage increases, and the cooling effect on the shroud and the casing can be enhanced.

Drawings

FIG. 1 is a schematic structural diagram of a high temperature gas cooled nuclear reactor configuration according to an embodiment of the present application;

FIG. 2 is a first perspective structural view of the assembly of the housing, the resilient support assembly and the enclosure in an embodiment of the present application;

FIG. 3 is a second perspective structural view of the assembly of the housing, the resilient support assembly and the enclosure according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a high temperature gas cooled nuclear reactor configuration according to another embodiment of the present application;

FIG. 5 is a schematic view of the assembly of the housing, the resilient support assembly and the enclosure according to another embodiment of the present application;

fig. 6 is a schematic view showing the assembly of the housing, the elastic support member and the shroud in the comparative example.

Reference numerals:

1-a shell; 11-a connecting bond; 2-a core assembly; 21-a core; 22-enclosing plates; 221-wave crest; 222-a wave trough; 3-an elastic support component; 31-a first resilient support; 32-a second resilient support; 4-a compensation block; 5-air cooling channel; a-direction of flow of the cooling gas.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

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

In addition, in the embodiments of the present application, directional terms such as "upper", "lower", "left", and "right" are defined with respect to the schematically-placed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts, which are used for descriptive and clarifying purposes, and may be changed accordingly according to changes in the orientation in which the components are placed in the drawings.

In the embodiments of the present application, unless otherwise explicitly specified or limited, the term "connected" is to be understood broadly, for example, "connected" may be a fixed connection, a detachable connection, or an integral body; may be directly connected or indirectly connected through an intermediate.

In the embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

An embodiment of the present application provides a nuclear power plant including a high temperature gas cooled nuclear reactor structure. A nuclear power plant is a plant that uses nuclear reactions of nuclear fuel to produce heat energy and converts the heat energy into energy in the form of electrical or mechanical energy, etc. A nuclear power plant using a high temperature gas cooled nuclear reactor cools nuclear fuel in the nuclear reactor using a cooling gas such as high temperature inert cooling gas or high temperature air, the temperature of the cooling gas increases after the cooling gas absorbs the nuclear fuel in the nuclear reactor, and the cooling gas having the increased temperature can be cooled by a steam generator or the like to be reused for cooling the nuclear reactor. The steam generator after absorbing heat can generate steam, and the steam can pass through the turbo generator to drive the turbo generator to generate electricity. The cooling gas with the increased temperature can also directly convert heat energy into mechanical energy of the steam turbine through the steam turbine, and the machinery of the steam turbine can be directly used for driving a propeller of an airplane to rotate and the like.

Referring to fig. 1, 2 and 3, a high temperature gas cooled nuclear reactor structure according to an embodiment of the present disclosure includes a housing 1, a core assembly 2 and an elastic support assembly 3. The reactor core assembly 2 is positioned in the shell 1 and comprises a reactor core 21 containing fuel and a surrounding plate 22 positioned at the periphery of the reactor core 21, wherein the surrounding plate 22 is spaced from the shell 1 so that an air cooling channel 5 is formed between the surrounding plate 22 and the shell 1; the elastic supporting component 3 is arranged between the enclosing plate 22 and the shell 1, at least one part of one side of the elastic supporting component 3 is fixedly connected with the shell 1, and the other side of the elastic supporting component is abutted against the enclosing plate 22. In such a structure, the core 21 is enclosed by the two-layer vessel, i.e., the shroud 22 and the shell 1 are spaced to form the air-cooling channel 5, so that the cooling gas can also flow in the air-cooling channel 5 in the process of cooling the core 21, and the shroud 22 and the shell 1 can be cooled by the cooling gas flowing in the air-cooling channel 5, thereby meeting the requirement of enclosing the high-temperature core 21. The elastic support assembly 3 is arranged between the enclosing plate 22 and the shell 1, when the reactor core 21 is heated and expanded, the enclosing plate 22 is expanded along with the expansion, and the other side of the elastic support assembly 3 can move towards the direction far away from the enclosing plate 22 under the extrusion action of the enclosing plate 22; when the core 21 contracts due to a temperature drop, the shroud 22 contracts, and the elastic support members 3 rebound and move in a direction approaching the shroud 22. In this way, the elastic support assemblies 3 can stably support the shroud 22 and the casing 1 when the core 21 expands or contracts due to a temperature change. In addition, when the temperature of the core 21 increases, the elastic support members 3 become less rigid under the influence of high temperature, and the elastic support members 3 are more easily deformed. Moreover, when the temperature of the core 21 increases, the flow rate of the cooling gas increases, and the flow rate of the cooling gas increases mainly to cool the core 21, which is disclosed in the related art and will not be described in detail again. When the flow of cooling gas grow, the airflow pressure of cooling gas can grow, and the airflow pressure of cooling gas can produce stronger effort to elastic support component 3, and elastic support component 3 can take place deformation because of the circumstances that high temperature rigidity diminishes at elastic support component 3. Since one side of the elastic supporting component 3 is fixedly connected to the housing 1 and the other side of the elastic supporting component 3 abuts against the surrounding plate 22, when the elastic supporting component 3 deforms due to the airflow pressure of the cooling air, the other side of the elastic supporting component 3 is separated from the surrounding plate 22, and on this basis, the cooling air can pass through the gap between the other side of the elastic supporting component 3 and the surrounding plate 22, which increases the flowing space of the cooling air in the air cooling channel 5, and further increases the flow rate of the cooling air 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 passage 5 increases, and the cooling effect on the shroud 22 and the casing 1 can be enhanced.

It should be noted that the supporting effect of the elastic support members 3 between the shroud 22 and the housing 1 is such that the shroud 22 is spaced from the housing 1 everywhere.

In order to make the shroud 22 have a good expansion or contraction effect with temperature changes of the core 21, the thickness of the shroud 22 is thin relative to the casing 1.

In some embodiments, the material of the elastic support member 3 is nickel-based steel.

Further, with continued reference to fig. 1, fig. 2 and fig. 3, the elastic supporting component 3 extends along the flow direction a of the cooling air, and the front end of the elastic supporting component 3 along the flow direction a of the cooling air in the air cooling channel 5 is fixedly connected to the housing 1. Structural style like this, elastic support component 3 extends along the flow direction a of cooling gas for elastic support component 3 support region between bounding wall 22 and casing 1 is great, and elastic support component 3 can carry out more firm support to casing 1 and bounding wall 22, and elastic support component 3 produces the clearance along the front end and the casing 1 fixed connection of flow direction a of cooling gas, be convenient for elastic support component 3 and bounding wall 22 under the effect of the flowing pressure of cooling gas between.

The extending direction of the elastic support member 3 is directed from the front end of the elastic support member 3 in the flow direction a of the cooling air to the rear end.

If the rear end of the elastic support member 3 in the flow direction a of the cooling air is fixedly connected to the housing 1, the front end of the elastic support member 3 may approach the rear end under the flow pressure of the cooling air, that is, the elastic support member 3 may be compressed, and the compressed elastic support member 3 may block the air cooling passage 5.

Further, with continued reference to fig. 1, 2 and 3, the elastic support assembly 3 includes a plurality of elastic members (referring to the first elastic support 31 and the second elastic support 32, which are shown as an example) distributed along the circumferential direction of the shroud 22, and each elastic member extends along the flow direction a of the cooling air. According to the structure, the elastic support component 3 is separated into the plurality of elastic pieces, and the plurality of elastic pieces cannot interfere with each other in the expansion or contraction process of the enclosing plate 22, so that the elastic support component 3 cannot generate large obstruction to the expansion or contraction of the enclosing plate 22.

Note that the shroud 22 is perpendicular to the flow direction a of the cooling air in the circumferential direction.

In some embodiments, in order to make the supporting of the shell 1 and the enclosure 22 by the elastic members more stable, a plurality of elastic members are uniformly distributed along the circumference of the enclosure 22.

Further, with continued reference to fig. 1, fig. 2 and fig. 3, the elastic member is a plate-shaped structure, two sides of the elastic member face the enclosing plate 22 and the housing 1, respectively, and the elastic member has a curvature, so that one side surface of the elastic member abuts against the housing 1, and the other side surface abuts against the enclosing plate 22. Structural style like this, the elastic component has the crookedness, can make the elastic component support casing 1 and bounding wall 22 on the one hand, and on the other hand makes the elastic component can extend under the pressure of cooling air current or the effect of the expanded extrusion of bounding wall 22, and the crookedness diminishes, and then makes the one end that the elastic component leaned on with bounding wall 22 move to casing 1. In addition, the bending degree of the elastic piece enables the contact area between the two side faces of the elastic piece and the enclosing plate 22 or the shell 1 to be small, so that the heat transfer efficiency between the enclosing plate 22 and the shell 1 is small, and the temperature of the shell 1 can be low.

Note that the side of the elastic member abutting the apron 22 is not connected to the apron 22, that is, the side of the elastic member abutting the apron 22 can be separated from the apron 22. And in the side surface of the elastic member abutted against the housing 1, the front end of the elastic member in the flow direction of the cooling air is fixedly connected with the housing 1, and the rest part can be separated from the housing 1.

It should be noted that, if the plate-shaped structure is linear, that is, the plate-shaped structure does not have a curvature, both side surfaces of the plate-shaped structure will be completely attached to the enclosure 22 or the casing 1, the heat transfer efficiency between the enclosure 22 and the casing 1 is relatively high, and the temperature of the casing 1 will be relatively high.

In order to make the pressure of the cooling air flow act strongly on the resilient member, the resilient member may be bent in a direction perpendicular to the flow of the cooling air.

Further, with continued reference to fig. 1, 2 and 3, the elastic member is a wavy plate structure, each peak of the wavy plate structure abuts against the shell 1, and each valley of the wavy plate structure abuts against the surrounding plate 22. The structure makes the elastic piece support the enclosing plate 22 and the shell 1 more stably.

In some embodiments, the resilient member may also be a spirally curved plate-like structure. With this structure, one side of the elastic member abuts against both the housing 1 and the shroud 22, and the other side of the elastic member may not contact both the housing 1 and the shroud 22. The helically curved plate-like structure is also able to elongate under the influence of the pressure of the cooling air stream or the compression of the expansion of the shroud 22, such that the side of the helically curved plate-like structure abutting against the shroud 22 moves away from the shroud 22. In addition, the contact area between the spirally bent plate-like structure and the shroud 22 and the casing 1 is also small, and the efficiency of heat transfer between the shroud 22 and the casing 1 can also be made small.

The two side surfaces of the plate-like structure mean two side surfaces having a large area and facing each other, out of the plurality of side surfaces of the plate-like structure. And the two sides of the plate-shaped structure refer to two sides of the plate-shaped structure in the radial direction of the shell 1, and the two sides of the plate-shaped structure respectively abut against the coaming 22 and the shell 1. The two sides of the plate-like structure are not referred to the same as the two sides of the plate-like structure.

It should be noted that the casing 1 is directed toward the casing 1 from the directing fence 22 in the radial direction, and the casing 1 is perpendicular to the flow direction a of the cooling air in the air cooling passage 5 in the radial direction.

In some embodiments, the resilient member may not be a plate-like structure. The elastic member may be a sheet structure, a rod structure, or a wire structure extending in the flow direction of the cooling air, and it is only necessary to ensure that the elastic member has a curvature and support the enclosure 22 and the housing 1 in the curved direction.

In some embodiments, referring to fig. 4 and 5, the plurality of elastic members may also be a whole, and the plurality of elastic members are connected in sequence to form a cylindrical structure. That is, the elastic support assembly 3 is a cylindrical structure surrounded by a wave-shaped piece, the core assembly 2 is located in the cylindrical structure, and the extending direction of the cylindrical structure is the flow direction a of the cooling gas.

In some embodiments, referring to fig. 1, 2 and 3, the enclosure 22 is formed by bending corrugated plates, and the corrugation lines of the corrugated plates extend along the extending direction of the air cooling passage. With such a structure, the corrugation of the corrugated plate can compensate the expansion and contraction processes of the enclosing plate 22, so that the enclosing plate 22 has larger deformation capacity. Of course, in some other embodiments, the corrugation pattern of the corrugated plate may extend in other directions.

The extending direction of the air-cooling passage is the flow direction a of the cooling air.

Further, please continue to refer to fig. 1, fig. 2 and fig. 3, the elastic supporting assembly 3 includes a first elastic supporting member 31 and a second elastic supporting member 32, one side of the first elastic supporting member 31 is fixedly connected to the housing 1, the other side of the first elastic supporting member 31 abuts against the wave crests 221 of the corrugated plate, one side of the second elastic supporting member 32 is fixedly connected to the housing 1, the other side of the second elastic supporting member 32 abuts against the wave troughs 222 of the corrugated plate, only one first elastic supporting member 31 is disposed between two adjacent wave troughs 222 of the corrugated plate, and only one second elastic supporting member 32 is disposed between two adjacent wave crests 221 of the corrugated plate. With such a structure, the elastic support component 3 can support the enclosing plate 22 more stably.

In order to make the elastic support component 3 support the enclosing plate 22 more stably, in some embodiments, a first elastic support 31 is disposed between every two adjacent wave troughs 222 of the corrugated plate, and a second elastic support 32 is disposed between every two adjacent wave crests 221 of the corrugated plate.

It should be noted that, referring to fig. 6, the distance between the wave crest 221 of the corrugated plate and the casing 1 is smaller, and the distance between the wave trough 222 of the corrugated plate and the casing 1 is larger, if one side of the first elastic supporting member 31 abuts against the casing 1, the other side abuts against the wave trough 222 of the corrugated plate, one side of the second elastic supporting member 32 abuts against the casing 1, the other side abuts against the wave trough 222 of the corrugated plate, and the length difference between the second elastic supporting member 32 and the first elastic supporting member 31 is larger in the radial direction of the casing 1. When the temperature of the core 21 increases, the pressure of the cooling gas in the air-cooling channel 5 increases, the first elastic supporting member 31 and the second elastic supporting member 32 elastically deform, and a large difference in length between the first elastic supporting member 31 and the second elastic supporting member 32 in the radial direction of the housing 1 may cause a large difference in deformation distance between the first elastic supporting member 31 and the second elastic supporting member 32, which may affect the stability of the first elastic supporting member 31 and the second elastic supporting member 32 in supporting the core assembly 2.

Therefore, in some embodiments, referring to fig. 1, fig. 2 and fig. 3, the high temperature gas cooled nuclear reactor structure further includes a plurality of compensation blocks 4, one side of each compensation block 4 is fixedly connected to an inner wall of the casing 1, the compensation blocks 4 are disposed in one-to-one correspondence with the second elastic supports 32, the second elastic supports 32 are fixedly connected to the other sides of the corresponding compensation blocks 4, one side of each compensation block 4 connected to the casing 1 and one side of each compensation block 4 connected to the second elastic supports 32 are arranged along a radial direction of the casing 1, and two sides of the first elastic support 31 are abutted to the casing 1 and the shroud 22, respectively. In such a structure, the length of the second elastic supporting member 32 in the radial direction of the housing 1 can be adjusted by the length of the compensating block 4 in the radial direction of the housing 1, so that the length difference between the first elastic supporting member 31 and the second elastic supporting member 32 in the radial direction of the housing 1 is within a reasonable range, and when the first elastic supporting member 31 and the second elastic supporting member 32 deform, the enclosure 22 and the housing 1 can still be stably supported.

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

The fixed connection of the compensation block 4 and the housing 1 can be realized in various ways, such as screw connection, bolt connection, stud connection, clamping connection, welding connection, key connection and the like. In order to make the stress condition better, a key connection is adopted. Specifically, in an embodiment, each compensation block 4 is provided with a key slot, the inner wall of the housing 1 is provided with a plurality of connecting keys 11 corresponding to the plurality of key slots, each connecting key 11 is connected with the corresponding key slot, and the connecting key 11 extends along the flowing direction a of the cooling air. In such a structure, the connecting key 11 extends along the extending direction of the air cooling channel 5, when the flowing pressure of the cooling air acts on the compensation block 4, the connecting key 11 and the key slot can slide relatively to buffer, so that the stress condition of the joint of the compensation block 4 and the shell 1 is better. Of course, in some other embodiments, the connection key 11 may be disposed on the compensation block 4, and the inner wall of the housing 1 is provided with a plurality of key slots corresponding to the plurality of connection keys 11.

Although the relative sliding between the connection key 11 and the key groove can occur, the relative sliding distance between the connection key 11 and the key groove is small, and therefore the key connection between the connection key 11 and the key groove can still be regarded as a fixed connection.

In the assembly process of the high temperature gas cooled nuclear reactor structure, the core assembly 2 is firstly placed in the shell 1, 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 gas cooling channel 5 along the extension direction of the gas 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 with the shell 1 through the connecting key 11 and the connecting key 11 extends along the extending 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.

The extending direction of the air-cooling duct 5 is the same as the flow direction a of the cooling air.

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

Further, one end of the compensation block 4 connected to the second elastic support 32 is located between the wave crest 221 and the wave trough 222 of the corrugated plate. Structural style like this for the ripple of buckled plate can carry on spacingly to compensation piece 4, makes being connected of compensation piece 4 and casing 1 more firm.

In some embodiments, referring to fig. 1, fig. 2 and fig. 3, the first elastic supporting member 31 and/or the second elastic supporting member 32 may be a structure similar to an elastic member. That is, the first elastic support 31 and/or the second elastic support 32 may be a bar structure extending in the flow direction a of the cooling air. In addition, the first elastic support member 31 and/or the second elastic support member 32 may be a wave-shaped structure, a spiral-shaped structure, a plate-shaped structure having a curvature, a rod-shaped structure having a curvature, a wire-shaped structure having a curvature, or the like.

Further, referring to fig. 1, fig. 2 and fig. 3, on the basis that the second elastic supporting member 32 extends along the flowing direction a of the cooling air, the compensating block 4 may extend along the flowing direction a of the cooling air, and the front end of the second elastic supporting member 32 along the flowing direction a of the cooling air is fixedly connected with the compensating block 4.

Further, referring to fig. 1, 2 and 3, on the basis that the second elastic supporting member 32 has a wave-shaped structure, a spiral-shaped structure, a plate-shaped structure with a curvature, a rod-shaped structure with a curvature, a wire-shaped structure with a curvature, or the like, the compensating block 4 extends in the flow direction a of the cooling air, and one side of the second elastic supporting member 32 abuts against the compensating block 4 and the other side abuts against the shroud 22. When the second elastic support member 32 is extended by the pressure of the cooling air flow or the pressing of the expansion of the enclosure 22, the side of the second elastic support member 32 abutting on the enclosure 22 is moved in the direction approaching the housing 1.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.