A reactor pressurizer support structure and a reactor pressurizer

Abstract

The utility model relates to nuclear power equipment technical field, concretely relates to a reactor pressurizer supporting structure and reactor pressurizer. The supporting structure includes: upper supporting mechanism, including support ring beam and multiple rigid pull rods, support ring beam can intervally set in the upper segment outside corresponding pressurizer body, and the one end of multiple rigid pull rods is connected with support ring beam, and the other end is used for fixed connection with the building body, lower supporting mechanism includes support lug seat, and support lug seat is installed on the pressurizer compartment floor under the working condition, and support lug seat is provided with limit groove, and limit groove is used for connecting the support base assembly that pressurizer body lower segment outer periphery sets, wherein, under the condition that support base assembly is installed in limit groove, can limit the vertical displacement of support base assembly, and support base assembly can move relative to the length direction of limit groove, can reduce the influence of supporting structure to pressurizer electric heating element heat dissipation simultaneously and so on Performance characteristics. The reactor pressurizer includes the reactor pressurizer supporting structure.

Description

Technical Field

[0001] This utility model relates to the field of nuclear power equipment technology, specifically to a reactor pressurizer support structure and a reactor pressurizer. Background Technology

[0002] The reactor pressurizer is one of the main pieces of equipment in a nuclear reactor coolant system. It is generally a vertical cylindrical high-temperature, high-pressure vessel. Each nuclear power unit typically has one reactor pressurizer to control the pressure under steady-state operation and transient conditions. The reactor pressurizer has multiple valves at the top and multiple electric heating elements at the bottom.

[0003] The pressurizer support is used to provide support for the reactor pressurizer under various operating conditions. The pressurizer support must bear the weight load of the pressurizer body, related equipment and internal medium, as well as the load generated by the equipment under various operating conditions, and transfer these loads to the plant civil foundation.

[0004] During normal operation of the reactor coolant system, the pressurizer support should allow for displacement of the pressurizer body due to thermal expansion and internal pressure, and limit the displacement of the pressurizer body in the event of an earthquake and / or pipeline rupture accident.

[0005] Generally speaking, pressurizer supports are divided into upper horizontal supports and lower vertical supports. The lower vertical supports are used to vertically fix the pressurizer to the reactor building compartment floor, while the upper horizontal supports provide lateral support for the pressurizer under certain operating conditions.

[0006] With technological advancements, the valves on top of pressurizers are becoming increasingly modular, and reactor power is gradually increasing, leading to larger pressurizer sizes, increased volumes, and increased power of the electric heating elements. Existing support solutions cannot simultaneously address issues such as heat accumulation in the electric heating elements, high support load levels, and the difficulty in supporting modular valves. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a reactor pressurizer support structure and a reactor pressurizer, which can simultaneously reduce the impact of the support structure on the performance characteristics of the pressurizer's electric heating elements, such as heat dissipation.

[0008] This utility model is achieved through the following technical solution:

[0009] In a first aspect, this utility model provides a reactor pressurizer support structure, comprising: an upper support mechanism, the upper support mechanism including a support ring beam and multiple rigid tie rods, the support ring beam being spaced out and sleeved on the upper section of the corresponding pressurizer body, one end of each of the multiple rigid tie rods being fixedly connected to the support ring beam and the other end being fixedly connected to the civil engineering structure; and a lower support mechanism, the lower support mechanism including support lugs, the support lugs being installed on the pressurizer compartment floor in the working state, the support lugs being provided with limiting grooves, the limiting grooves being used to connect to a support assembly provided on the outer periphery of the lower section of the pressurizer body; wherein, when the support assembly is installed in the limiting groove, the vertical displacement of the support assembly can be limited, and the support assembly can move relative to the length direction of the limiting groove.

[0010] The reactor pressurizer support structure provided by this utility model includes an upper support mechanism and a lower support mechanism, wherein:

[0011] The upper support mechanism includes a support ring beam and multiple rigid tie rods. With the support ring beams spaced out over the upper section of the corresponding voltage stabilizer body and the multiple rigid tie rods fixedly connected to the civil engineering structure, it can provide lateral support for the upper part of the voltage stabilizer body and adapt to the thermal expansion of the voltage stabilizer body. At the same time, the support ring beams can also provide support for the valve module at the top of the voltage stabilizer, so that the valve module at the top of the voltage stabilizer expands with the thermal expansion of the voltage stabilizer, reducing the stress level and improving the reliability and safety of the equipment.

[0012] The lower support mechanism includes support lugs, which are installed on the floor slab of the voltage regulator compartment. The support lugs are equipped with limit grooves that connect to a support assembly located on the outer periphery of the lower section of the voltage regulator body. These limit grooves restrict the vertical displacement of the support assembly while allowing it to move longitudinally relative to the limit groove. This limits the vertical and axial displacement of the voltage regulator body, providing support for various dynamic and static loads and allowing radial free movement due to pressure and thermal expansion, thus maintaining the central axis position of the voltage regulator. It also limits displacement of the voltage regulator body under emergency conditions, ensuring stability and eliminating the need for on-site welding of the lower support assembly. Furthermore, by supporting the lower periphery of the voltage regulator body with the support lugs, the lower end cap of the voltage regulator is not obstructed, effectively preventing heat accumulation on the electric heating element, improving its operating conditions, reducing the probability of failure, and promoting long-term operation of the voltage regulator.

[0013] In summary, the reactor pressurizer support structure provided by this utility model adopts a combination of a lower vertical support lug type support, an upper horizontal support ring beam, and a tie rod. This can improve the load-bearing capacity of the support structure, enhance the heat dissipation of the bottom electric heating element, and provide support for the upper valve module. This simultaneously solves the technical problems of heat accumulation in the electric heating element, high support load level, difficulty in supporting modular valves, and large amount of on-site welding.

[0014] In an optional embodiment of this application, the support ring beam includes multiple connecting beam segments, each of which has an arc-shaped structure. Adjacent connecting beam segments are connected by bolts to facilitate the installation of the support ring beam outside the voltage regulator body.

[0015] In an optional embodiment of this application, a plurality of flexible pads are provided on the inner wall of the support ring beam. The plurality of flexible pads are evenly distributed along the circumference of the inner hole of the support ring beam to absorb the thermal expansion shock of the voltage regulator body through the flexible pads, so as to ensure that the support ring beam can adapt to the thermal expansion of the voltage regulator body.

[0016] In an optional embodiment of this application, a plurality of mounting pads are provided on the upper end face of the support ring beam. The mounting pads are used to install the upper valve module so as to facilitate the installation of the upper valve module on the support ring beam.

[0017] In an optional embodiment of this application, the outer periphery of the supporting ring beam is provided with a plurality of connecting lugs, and the end of the rigid tie rod is connected to the corresponding connecting lug, so as to connect the rigid tie rod to the supporting ring beam.

[0018] In an optional embodiment of this application, the limiting groove is a constricted groove to ensure that the support lug can limit the vertical displacement of the support assembly.

[0019] In an optional embodiment of this application, two limiting blocks are provided at the upper end of the support ear seat. The two limiting blocks are respectively disposed on both sides of the opening of the limiting groove, and the inner end of the limiting block extends to the top of the limiting groove.

[0020] In an optional embodiment of this application, a support slide is installed at the bottom of the limiting groove, and the support slide can slide along the length direction of the limiting groove to ensure that the support assembly can move relative to the support lug.

[0021] In an optional embodiment of this application, both sides of the limiting groove are provided with adjusting pads to facilitate adjustment of the circumferential limitation of the support lug on the voltage regulator body.

[0022] Secondly, this utility model provides a reactor pressurizer, including a pressurizer body and the aforementioned reactor pressurizer support structure; the support ring beams are spaced and sleeved on the upper section of the corresponding pressurizer body, and the support assembly provided on the outer periphery of the lower section of the pressurizer body is installed in the limiting groove.

[0023] The reactor pressurizer provided by this utility model adopts a combination of a lower vertical support lug type support, an upper horizontal support ring beam, and a tie rod. This can improve the load-bearing capacity of the support structure, enhance the heat dissipation of the bottom electric heating element, and provide support for the upper valve module. This solves the technical problems of heat accumulation in the electric heating element, high support load level, difficulty in supporting modular valves, and large amount of on-site welding at the same time.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] 1. The reactor pressurizer support structure provided by this utility model includes a support ring beam and multiple rigid tie rods in the upper support mechanism. When the support ring beam is spaced out and sleeved on the upper section of the corresponding pressurizer body, and the multiple rigid tie rods are fixedly connected to the civil engineering structure, it can provide lateral support for the upper part of the pressurizer body and adapt to the thermal expansion of the pressurizer body. At the same time, the support ring beam can also provide support for the valve module at the top of the pressurizer, so that the valve module at the top of the pressurizer expands with the thermal expansion of the pressurizer, reducing the stress level and improving the reliability and safety of the equipment.

[0026] 2. The reactor pressurizer support structure provided by this utility model includes a support lug in the lower support mechanism. The support lug is installed on the floor of the pressurizer compartment during use, and the support lug is provided with a limiting groove. The limiting groove is connected to a support assembly provided on the outer periphery of the lower section of the pressurizer body, and can limit the vertical displacement of the support assembly and allow the support assembly to move relative to the length direction of the limiting groove. In order to limit the vertical and axial displacement of the pressurizer body through the support lug, provide support for various dynamic and static loads of the pressurizer body, and allow the pressurizer to move freely in the radial direction due to pressure and thermal expansion, so as to keep the central axis position of the pressurizer fixed, and at the same time limit the displacement of the pressurizer body under accident conditions, and keep the pressurizer stable.

[0027] 3. The reactor pressurizer support structure provided by this utility model supports the lower outer periphery of the pressurizer body through the support lugs, without obstructing the lower end cap of the pressurizer, effectively avoiding the heat accumulation problem of the electric heating element, improving the operating conditions of the electric heating element, reducing the probability of failure, and facilitating the long-term operation of the pressurizer.

[0028] 4. The reactor pressurizer provided by this utility model adopts a combination of a lower vertical support lug type support, an upper horizontal support ring beam, and a tie rod, which can improve the load-bearing capacity of the support structure, enhance the heat dissipation of the bottom electric heating element, and provide support for the upper valve module. This solves the technical problems of heat accumulation in the electric heating element, high support load level, difficulty in supporting modular valves, and large amount of on-site welding at the same time. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] In the attached diagram:

[0031] Figure 1 This is a three-dimensional model structural diagram of the reactor pressurizer provided in an embodiment of the present invention;

[0032] Figure 2 A three-dimensional model structural diagram of the upper support mechanism provided in an embodiment of this utility model;

[0033] Figure 3 A three-dimensional model structural diagram of the lower support mechanism provided in an embodiment of this utility model.

[0034] The attached figures include reference numerals and their corresponding component names:

[0035] 10-Supporting ring beam, 11-Connecting beam segment, 12-Flexible liner, 13-Mounting pad, 14-Connecting lug;

[0036] 20 - Rigid tie rod;

[0037] 30-Voltage regulator body; 31-Support assembly; 32-Mounting lug;

[0038] 40-Support lug, 41-Limiting groove, 42-Limiting block, 43-Supporting slide, 44-Adjusting pad. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0042] In the description of the embodiments of this application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0043] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] Generally, pressurizer supports are divided into upper horizontal supports and lower vertical supports. The lower vertical supports are used to vertically fix the pressurizer to the reactor building compartment floor. The upper horizontal supports provide lateral support for the pressurizer under certain operating conditions.

[0045] In the M310 and Hualong One reactor types, the upper horizontal support of the pressurizer uses a lateral limiter, while the lower vertical support uses a skirt-type structure. In the AP1000 reactor type, the upper horizontal support of the pressurizer uses a tie rod and ring beam, while the lower vertical support uses a tie rod and column structure. In the EPR reactor type, the upper horizontal support of the pressurizer uses a lateral limiter, while the lower vertical support uses an ear-type support structure. These support structures have limitations in simultaneously addressing issues such as heat accumulation on the electric heating elements, high support load levels, difficulty in supporting modular valves, and a large amount of on-site welding.

[0046] To this end, the inventors have innovatively designed the following technical solutions, and the specific implementation scheme of this application will be described in detail below with reference to the accompanying drawings.

[0047] Example 1

[0048] Combination Figures 1-3This embodiment provides a reactor pressurizer support structure, including: an upper support mechanism, which includes a support ring beam 10 and multiple rigid tie rods 20. The support ring beam 10 can be spaced and sleeved on the upper section of the corresponding pressurizer body 30. One end of each of the multiple rigid tie rods 20 is connected to the support ring beam 10, and the other end is used for fixed connection to the civil engineering structure; and a lower support mechanism, which includes a support lug 40. The support lug 40 is installed on the pressurizer compartment floor in the working state. The support lug 40 is provided with a limiting groove 41. The limiting groove 41 is used to connect a support assembly 31 provided on the outer periphery of the lower section of the pressurizer body 30. When the support assembly 31 is installed in the limiting groove 41, the vertical displacement of the support assembly 31 can be restricted, and the support assembly 31 can move relative to the length direction of the limiting groove 41.

[0049] Combination Figure 2 The supporting ring beam 10 includes multiple connecting beam segments 11, each of which has an arc-shaped structure. Adjacent connecting beam segments 11 are connected by bolts to facilitate the installation of the supporting ring beam outside the voltage regulator body 30. In other words, the entire ring beam assembly is composed of multiple small ring beam assemblies (usually 2 to 4) connected by bolts.

[0050] Understandably, in the installed state, there is a certain gap between the inner ring of the support ring beam 10 and the voltage regulator. Depending on the size of the voltage regulator, the gap between the support ring beam 10 and the surface of the voltage regulator cylinder is generally 20mm to 100mm. To address this, multiple flexible pads 12 are provided on the inner wall of the support ring beam 10. These flexible pads 12 are evenly distributed along the circumference of the inner hole of the support ring beam 10 to absorb the thermal expansion impact of the voltage regulator body 30, ensuring that the support ring beam 10 can adapt to the thermal expansion of the voltage regulator body 30. In engineering examples, the number of flexible pads 12 is typically 16 to 60 to form lateral support for the voltage regulator. However, to accommodate the thermal expansion of the voltage regulator, a gap of 2mm to 6mm remains between the flexible pads 12 and the voltage regulator in the cold state.

[0051] Based on this, a plurality of mounting pads 13 (usually four) are provided on the upper end face of the support ring beam 10. The mounting pads 13 are used to install the upper valve module so as to install the upper valve module on the support ring beam 10.

[0052] Meanwhile, the outer periphery of the supporting ring beam 10 is provided with multiple connecting lugs 14 (usually 4 to 12 sets). The end of the rigid tie rod 20 is connected to the corresponding connecting lug 14 to facilitate the connection of the rigid tie rod 20 to the supporting ring beam 10. Correspondingly, there are usually 4 to 12 rigid tie rods 20, all of which are zero-clearance rigid structures.

[0053] Combination Figure 3 The limiting groove 41 is a constricted groove to ensure that the support ear 40 can limit the vertical displacement of the support assembly 31.

[0054] Specifically, the upper end of the support ear seat 40 is provided with two limiting blocks 42, which are respectively disposed on both sides of the opening of the limiting groove 41, and the inner end of the limiting block 42 extends to the top of the limiting groove 41.

[0055] The bottom of the limiting groove 41 is equipped with a support slide 43, which can slide along the length of the limiting groove 41 to ensure that the support assembly 31 can move relative to the support lug 40.

[0056] In addition, both sides of the limiting groove 41 are provided with adjusting pads 44 to facilitate the adjustment of the circumferential limitation of the support ear seat 40 on the voltage regulator body 30.

[0057] It should be noted that, based on the reactor pressurizer support structure provided by this utility model, a plurality of mounting lugs 32 (usually 4 to 12) are evenly distributed on the outer periphery of the upper section of the pressurizer body 30, and a plurality of support assemblies 31 (usually 3 to 8 sets) are evenly distributed on the outer periphery of the lower section of the pressurizer body 30. The mounting lugs 32 and the support assemblies 31 are usually fixed to the outside of the pressurizer body 30 by welding.

[0058] Therefore, the reactor pressurizer support structure provided by this utility model, in use, involves spaced support ring beams 10 on the upper section of the corresponding pressurizer body 30, and multiple rigid tie rods 20 fixedly connected to the civil engineering structure. Generally, the support ring beams 10 are connected to one end of the rigid tie rods 20 by pins, and the other end of the rigid tie rods 20 are fixed by welding to the embedded parts of the civil engineering structure. The support ring beams 10 are also connected to the mounting lugs 32 on the outer periphery of the upper section of the pressurizer body 30 by pins, adopting a ring beam + tie rod type. The entire ring beam structure supports the upper valve module, providing lateral support for the upper part of the pressurizer body 30 and accommodating the thermal expansion of the pressurizer body 30. At the same time, the support ring beams 10 also provide support for the valve module at the top of the pressurizer, allowing the valve module at the top of the pressurizer to expand with the thermal expansion of the pressurizer, reducing the stress level and improving the reliability and safety of the equipment.

[0059] Meanwhile, the support lug 40 is installed on the floor slab of the voltage stabilizer compartment during use. Generally, the support lug 40 is fixed to the floor slab of the voltage stabilizer compartment by bolts (usually 2 to 4 bolts) that penetrate the floor slab. It also confines the support assembly 31, which is set on the lower outer periphery of the voltage stabilizer body 30, within the limiting groove 41. This restricts the vertical displacement of the support assembly 31 and allows the support assembly 31 to move along the length direction relative to the limiting groove 41. The support lug 40 also limits the vertical and axial displacement of the voltage stabilizer body 30, providing support for various dynamic and static loads on the voltage stabilizer body 30. It allows the voltage stabilizer to move freely radially due to pressure and thermal expansion, thus keeping the central axis position of the voltage stabilizer fixed. At the same time, it can limit the displacement of the voltage stabilizer body 30 under emergency conditions, keeping the voltage stabilizer stable, and eliminating the need for on-site welding of the lower support assembly.

[0060] The lower outer periphery of the stabilizer body is supported by the support lug 40, which does not obstruct the lower end cap of the voltage regulator, effectively avoiding the heat accumulation problem of the electric heating element, improving the operating conditions of the electric heating element, reducing the probability of failure, and facilitating the long-term operation of the voltage regulator.

[0061] In summary, the reactor pressurizer support structure provided by this utility model adopts a combination of a lower vertical support lug-type support and an upper horizontal support ring beam 10 and tie rods. These two parts together form the pressurizer support structure, which can improve the load-bearing capacity of the support structure, enhance the heat dissipation of the bottom electric heating element, and provide support for the upper valve module. This simultaneously solves the technical problems of heat accumulation in the electric heating element, high support load level, difficulty in supporting modular valves, and large amount of on-site welding. In this way, the safety, advancement, and economy of the pressurizer are improved, and the support requirements of larger pressurizers can be met. It can be used for the support of pressurizers in newly built nuclear power plants.

[0062] Example 2

[0063] Combination Figure 1 This embodiment provides a reactor pressurizer, including a pressurizer body 30 and a reactor pressurizer support structure described in Embodiment 1; the support ring beam 10 is spaced out on the upper section of the corresponding pressurizer body 30, and the support assembly 31 provided on the outer periphery of the lower section of the pressurizer body 30 is installed in the limiting groove 41.

[0064] Specifically, based on the description in Embodiment 1, the support ring beam is connected to the mounting lug 32 on the voltage regulator body 30 via a pin, and the support lug 40 is secured to the outside of the support assembly 31.

[0065] For the model voltage regulator, its outer diameter is 2752mm, and the corresponding inner diameter of the support ring beam 10 is 2880mm. The distance between the support ring beam 10 and the surface of the voltage regulator body 30 is 64mm. Meanwhile, the width of the flexible gasket 12 is 60mm, and in the installation state, the gap between the voltage regulator body 30 and the flexible gasket 12 in the cold state must be approximately 4mm. Furthermore, the flexible gasket 12 comes in two types: long gaskets and short gaskets, totaling 32.

[0066] The supporting ring beam 10 consists of two half-ring beams. The lower part of the supporting ring beam 10 is connected to the mounting lugs 32 on the eight sets of voltage stabilizer bodies 30. The supporting ring beam 10 is connected to the civil structure in four directions by eight horizontal rigid tie rods 20, forming a shape similar to a "cross".

[0067] Furthermore, the lower vertical support of the voltage stabilizer body 30 consists of three independent support lugs 40, which are at an angle of 120° to each other. The support lugs 40 are fixed to the ground by two bolts that penetrate the floor slab. The support assembly 31 on the voltage stabilizer body 30 is limited in the support lugs 40 by a pad and a limiting block 42.

[0068] In summary, the reactor pressurizer provided in this embodiment adopts a combination of a lower vertical support lug-type support, an upper horizontal support ring beam 10, and tie rods. This can improve the load-bearing capacity of the support structure, enhance the heat dissipation of the bottom electric heating element, and provide support for the upper valve module. This simultaneously solves the technical problems of heat accumulation in the electric heating element, high support load level, difficulty in supporting modular valves, and large amount of on-site welding.

[0069] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A reactor pressurizer support structure, characterized in that, include: The upper support mechanism includes a support ring beam (10) and multiple rigid tie rods (20). The support ring beam (10) can be spaced out on the upper section of the corresponding voltage stabilizer body (30). One end of the multiple rigid tie rods (20) is connected to the support ring beam (10), and the other end is used to fix it to the civil engineering structure. The lower support mechanism includes a support lug (40), which is installed on the floor of the voltage regulator compartment in the working state. The support lug (40) is provided with a limiting groove (41), which is used to connect the support assembly (31) provided on the lower outer periphery of the voltage regulator body (30). When the support assembly (31) is installed in the limiting groove (41), the vertical displacement of the support assembly (31) can be restricted, and the support assembly (31) can move relative to the length direction of the limiting groove (41).

2. The reactor pressurizer support structure according to claim 1, characterized in that, The supporting ring beam (10) includes multiple connecting beam segments (11), which are arc-shaped structures, and adjacent connecting beam segments (11) are connected by bolts.

3. The reactor pressurizer support structure according to claim 1, characterized in that, The inner wall of the support ring beam (10) is provided with a plurality of flexible pads (12), and the plurality of flexible pads (12) are evenly distributed along the circumference of the inner hole of the support ring beam (10).

4. The reactor pressurizer support structure according to claim 1, characterized in that, The upper end face of the support ring beam (10) is provided with multiple mounting pads (13), which are used to install the upper valve module.

5. The reactor pressurizer support structure according to claim 1, characterized in that, The outer periphery of the supporting ring beam (10) is provided with a plurality of connecting lugs (14), and the end of the rigid tie rod (20) is connected to the corresponding connecting lug (14).

6. The reactor pressurizer support structure according to any one of claims 1 to 5, characterized in that, The limiting groove (41) is a narrow groove.

7. The reactor pressurizer support structure according to claim 6, characterized in that, The upper end of the support ear seat (40) is provided with two limiting blocks (42), the two limiting blocks (42) are respectively located on both sides of the groove opening of the limiting groove (41), and the inner end of the limiting block (42) extends to the top of the limiting groove (41).

8. The reactor pressurizer support structure according to claim 6, characterized in that, The bottom of the limiting groove (41) is equipped with a support slide (43), which can slide along the length direction of the limiting groove (41).

9. The reactor pressurizer support structure according to claim 6, characterized in that, Adjustment pads (44) are provided on both sides of the limiting groove (41).

10. A reactor pressurizer, characterized in that, Includes a pressurizer body (30) and a reactor pressurizer support structure as described in any one of claims 1 to 9; The support ring beam (10) is spaced out on the upper section of the corresponding voltage regulator body (30), and the support assembly (31) provided on the lower periphery of the voltage regulator body (30) is installed in the limiting groove (41).

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