A reactor pressure vessel load support bracket skeleton mechanism and a forming method thereof

Abstract

The application belongs to the technical field of nuclear reactor equipment, and particularly relates to a reactor pressure vessel load-bearing support bracket skeleton mechanism and a forming method thereof. The reactor pressure vessel load-bearing support bracket skeleton mechanism comprises a first pre-assembly module group, a second pre-assembly module group and a third pre-assembly module group, and the three pre-assembly module groups are sequentially assembled. The application has higher load-carrying capacity and is safer, adopts a steel plate concrete structure, uses steel plates and stiffened plates to replace wall body steel bars, reduces the steel bar density in the wall body concrete, and greatly reduces the difficulty of concrete pouring.

Description

Technical Field

[0001] This invention belongs to the field of nuclear reaction equipment technology, specifically relating to a reactor pressure vessel load-bearing support bracket structure and its forming method. Background Technology

[0002] Currently, the walls at the load-bearing supports of high-temperature gas-cooled reactor pressure vessels are constructed using reinforced concrete. The walls at these supports are subject to complex stresses and have low load-bearing capacity; furthermore, the use of reinforced concrete results in dense reinforcement and difficult construction.

[0003] Therefore, it is necessary to design a load-bearing support bracket mechanism for reactor pressure vessels to solve the problems existing in the current technology. Summary of the Invention

[0004] The purpose of this invention is to provide a load-bearing support bracket frame structure for a reactor pressure vessel and its forming method, which enables higher load-bearing capacity and greater safety. At the same time, it adopts a steel plate concrete structure, using steel plates and stiffening plates to replace the wall steel bars, reducing the density of steel bars in the wall concrete and significantly reducing the difficulty of concrete pouring.

[0005] Technical solution to achieve the purpose of this invention:

[0006] A reactor pressure vessel load-bearing support bracket frame mechanism, the frame mechanism includes a first pre-installed module group, a second pre-installed module group, and a third pre-installed module group, the three pre-installed module groups being assembled sequentially.

[0007] The first pre-assembled module includes an inner vertical panel, an outer vertical panel, a left extension panel, a right extension panel, an upper extension panel, a lower extension panel, a left frame panel, a right frame panel, an upper frame panel, a lower frame panel, bolt sleeves, inner vertical panel studs, and outer vertical panel studs. The inner and outer vertical panels are distributed between the inner and outer curved wall steel plates. The inner vertical panel studs are evenly distributed on the inner and outer surfaces of the inner vertical panel, and the outer vertical panel studs are evenly distributed on the inner surface of the outer vertical panel. The bolt sleeves are distributed between the inner and outer vertical panels. The left extension plate, right extension plate, upper extension plate, and lower extension plate are distributed around the inner vertical plate and are in the same plane as the inner vertical plate; the left frame plate, right frame plate, upper frame plate, and lower frame plate are in front of the inner vertical plate and are perpendicular to the inner vertical plate; the inner vertical plate, outer vertical plate, left extension plate, right extension plate, upper extension plate, lower extension plate, left frame plate, and right frame plate are rectangular plates, while the upper frame plate and lower frame plate are curved plates; all components of the first pre-assembled module group are fixedly connected into a whole by welding.

[0008] The second pre-assembled module group includes uprights, upright studs, partitions, partition studs, rectangular stiffening ribs, lower L-shaped stiffening ribs, upper L-shaped stiffening ribs, small stiffening ribs, irregular stiffening ribs, rectangular plates, lower arc-shaped plates, upper arc-shaped plates, angle steel, and tie steel. The uprights are distributed between the outer and inner wall arc-shaped steel plates and are perpendicular to the arc-shaped wall. The surface of the uprights is arranged with evenly distributed upright studs, and connecting holes are opened at certain intervals. The partitions are distributed between the inner and outer uprights and are perpendicular to the inner and outer uprights respectively. The surface of the partitions is arranged with evenly distributed partition studs at certain intervals. Connecting holes are provided; rectangular stiffening ribs are distributed on the upper side of the upper frame plate and the lower side of the lower frame plate; upper L-shaped stiffening ribs are distributed on the upper side of the upper arc plate, and lower L-shaped stiffening ribs are distributed on the lower side of the lower arc plate; small stiffening ribs are distributed on the upper side of the upper arc plate and the lower side of the lower arc plate; irregular stiffening ribs are distributed on the left side of the left frame plate and the right side of the right frame plate; rectangular plates are distributed between the upper arc plate and the upper extension plate and between the lower arc plate and the lower extension plate; lower arc plates are distributed on the lower side of the outer vertical plate, and upper arc plates are distributed on the upper side of the outer vertical plate; angle steel is arranged on the surface of the inner vertical plate and the outer vertical plate, and tie steel is arranged between the inner vertical plate and the outer vertical plate.

[0009] The third pre-installed module group includes an outer wall arc-shaped steel plate, outer wall arc-shaped steel plate studs, an inner wall arc-shaped steel plate, and inner wall arc-shaped steel plate studs; the outer wall arc-shaped steel plate studs are evenly arranged on the inner surface of the outer wall arc-shaped steel plate, and the inner wall arc-shaped steel plate studs are evenly arranged on the inner surface of the inner wall arc-shaped steel plate; at the two vertical plates, the thickness of the outer wall arc-shaped steel plate and the inner wall arc-shaped steel plate transitions from thick to thin, which facilitates connection with the nuclear reactor wall steel plate.

[0010] In the aforementioned corbel frame structure for supporting the reactor pressure vessel, the upright plate is welded and fixed to the inner and outer curved steel plates; one side of the partition plate is welded to the outer curved steel plate, upper curved plate, outer upright plate, and lower curved plate, and the other side is welded to the upper extension plate, upper frame plate, inner upright plate, left frame plate, left extension plate, lower frame plate, and lower extension plate; the width of the rectangular stiffening rib is adjusted according to the distance between the upper extension plate and the inner curved steel plate to better weld and fix it to the upper extension plate, upper frame plate, and inner curved steel plate; the lower L-shaped stiffening rib is welded and fixed to the outer upright plate and lower curved plate; the upper L-shaped stiffening rib is welded and fixed to the outer upright plate and upper curved plate; and the small stiffening rib is welded and fixed to the outer curved steel plate and upper curved plate.

[0011] The irregular stiffening ribs are welded and fixed to the inner wall arc steel plate, left extension plate, upper frame plate, and left frame plate; the rectangular plate is welded and fixed to the upper arc plate and upper frame plate; two angle steels, one is welded and fixed to the outer vertical plate, and the other is welded and fixed to the inner vertical plate; the tie steel is welded and fixed to the angle steel.

[0012] A method for forming a corbel framework structure for a reactor pressure vessel load-bearing support. The method includes: First, assembling a first pre-assembled module group, a second pre-assembled module group, and a third pre-assembled module group for the corbel framework structure for the reactor pressure vessel load-bearing support; Second, pouring concrete between the outer wall arc-shaped steel plate and the inner wall arc-shaped steel plate using a concrete pouring process, and pouring the following components into the concrete: left extension plate, right extension plate, upper extension plate, lower extension plate, bolt sleeve, inner vertical plate studs, outer vertical plate studs, vertical plate, vertical plate studs, partition plate, partition plate studs, rectangular stiffening ribs, lower L-shaped stiffening ribs, upper L-shaped stiffening ribs, small stiffening ribs, irregular stiffening ribs, rectangular plate, lower arc-shaped plate, upper arc-shaped plate, angle steel, tie steel, outer wall arc-shaped steel plate studs, and inner wall arc-shaped steel plate studs.

[0013] The beneficial technical effects of this invention are as follows:

[0014] 1. The frame structure of the pressure vessel load-bearing support bracket has a higher load-bearing capacity and is safer.

[0015] 2. By adopting steel plate concrete structure, steel plates and stiffening plates are used to replace the wall steel bars, reducing the density of steel bars in the wall concrete, which can greatly reduce the difficulty of concrete pouring.

[0016] 3. The frame structure of the pressure vessel load-bearing support bracket can be manufactured as modules in the factory, which simplifies the on-site construction process and shortens the construction time.

[0017] 4. The frame structure of the combined bracket of the pressure vessel load-bearing support can be prefabricated in the factory, replacing the on-site steel reinforcement binding and alleviating the problem of limited construction space.

[0018] 5. Steel plates can be used as casting templates, which improves construction efficiency, speeds up construction progress, and enhances the economic efficiency of the project. Attached Figure Description

[0019] Figure 1 A schematic diagram of the combined bracket frame structure for the load-bearing support of a nuclear reactor pressure vessel.

[0020] Figure 2 This is a front view of the first pre-installed module group;

[0021] Figure 3 This is a top view of the first pre-installed module group;

[0022] Figure 4 This is a schematic diagram of the first pre-installed module group;

[0023] Figure 5 This is schematic diagram B of the first pre-installed module group;

[0024] Figure 6 This is the front view of the second pre-installed module group;

[0025] Figure 7 This is a top view of the second pre-installed module group;

[0026] Figure 8 This is a schematic diagram of the second pre-installed module group;

[0027] Figure 9 This is schematic diagram B of the second pre-installed module group;

[0028] Figure 10 This is a schematic diagram of the third pre-installed module group;

[0029] Figure 11 This is schematic diagram B of the third pre-installed module group;

[0030] Figure 12 A schematic cross-sectional view of the corbel frame structure of the load-bearing support assembly for a nuclear reactor pressure vessel;

[0031] Figure 13 This is a schematic cross-sectional view (B) of the load-bearing support structure of the nuclear reactor pressure vessel;

[0032] Figure 14 This is a cross-sectional schematic diagram (C) of the load-bearing support structure of a nuclear reactor pressure vessel;

[0033] Figure 15 This is a schematic cross-sectional view (D) of the load-bearing support structure of a nuclear reactor pressure vessel;

[0034] Figure 16 E is a cross-sectional schematic diagram of the load-bearing support structure of a nuclear reactor pressure vessel.

[0035] In the diagram: 1 is the inner vertical plate, 2 is the outer vertical plate, 3 is the left extension plate, 4 is the right extension plate, 5 is the upper extension plate, 6 is the lower extension plate, 7 is the left frame plate, 8 is the right frame plate, 9 is the upper frame plate, 10 is the lower frame plate, 11 is the bolt sleeve, 12 is the inner vertical plate stud, 13 is the outer vertical plate stud, 14 is the vertical plate, 15 is the vertical plate stud, 16 is the partition plate, 17 is the partition plate stud, 18 is the rectangular stiffening rib, 19 is the lower L-shaped stiffening rib, 20 is the upper L-shaped stiffening rib, 21 is the small stiffening rib, 22 is the irregular stiffening rib, 23 is the rectangular plate, 24 is the lower curved plate, 25 is the upper curved plate, 26 is the angle steel, 27 is the tie steel, 28 is the outer wall curved steel plate, 29 is the outer wall curved steel plate stud, 30 is the inner wall curved steel plate, and 31 is the inner wall curved steel plate stud. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in the present invention without creative effort are within the scope of protection of the present invention.

[0037] like Figure 1 As shown, the present invention provides a reactor pressure vessel load-bearing support bracket frame mechanism, the frame mechanism including a first pre-installed module group, a second pre-installed module group, and a third pre-installed module group.

[0038] The first pre-assembled module includes an inner vertical plate 1, an outer vertical plate 2, a left extension plate 3, a right extension plate 4, an upper extension plate 5, a lower extension plate 6, a left frame plate 7, a right frame plate 8, an upper frame plate 9, a lower frame plate 10, bolt sleeves 11, inner vertical plate studs 12, and outer vertical plate studs 13. The inner vertical plate 1 and outer vertical plate 2 are distributed between the inner curved wall steel plate 30 and the outer curved wall steel plate 28. The inner vertical plate studs 12 are evenly distributed on the inner and outer surfaces of the inner vertical plate 1, and the outer vertical plate studs 13 are evenly distributed on the inner surface of the outer vertical plate 2. The bolt sleeves 11 are distributed between the inner vertical plate 1 and the outer vertical plate 2. The left extension plate 3, right extension plate 4, upper extension plate 5, and lower extension plate 6 are distributed around the inner vertical plate 1, and are in the same plane as the inner vertical plate 1. The left frame plate 7, right frame plate 8, upper frame plate 9, and lower frame plate 10 are located in front of the inner vertical plate 1 and are perpendicular to the inner vertical plate 1. The inner upright plate 1, outer upright plate 2, left extension plate 3, right extension plate 4, upper extension plate 5, lower extension plate 6, left frame plate 7, and right frame plate 8 are rectangular plates, while the upper frame plate 9 and lower frame plate 10 are curved plates. All components of the first pre-assembled module group are fixedly connected into a whole by welding.

[0039] The second pre-assembled module group includes upright plates 14, upright plate studs 15, partition plates 16, partition plate studs 17, rectangular stiffening ribs 18, lower L-shaped stiffening ribs 19, upper L-shaped stiffening ribs 20, small stiffening ribs 21, irregularly shaped stiffening ribs 22, rectangular plates 23, lower arc-shaped plates 24, upper arc-shaped plates 25, angle steel 26, and tie steel 27. Upright plates 14 are distributed between the outer wall arc-shaped steel plates 28 and the inner wall arc-shaped steel plates 30, and are perpendicular to the arc-shaped wall. Upright plate studs 15 are evenly distributed on the surface of upright plates 14, with connecting holes at regular intervals. Partition plates 16 are distributed between inner upright plates 1 and outer upright plates 2, and are perpendicular to both. Partition plate studs 17 are evenly distributed on the surface of partition plates 16, with connecting holes at regular intervals. Rectangular stiffening ribs 18 are distributed on the upper side of the upper frame plate 9 and the lower side of the lower frame plate 10. Upper L-shaped stiffening ribs 20 are distributed on the upper side of the upper arc-shaped plate 25, and lower L-shaped stiffening ribs 19 are distributed on the lower side of the lower arc-shaped plate 24. Small stiffening ribs 21 are distributed on the upper side of the upper arc-shaped plate 25 and the lower side of the lower arc-shaped plate 24. Irregularly shaped stiffening ribs 22 are distributed on the left side of the left frame plate 7 and the right side of the right frame plate 8. Rectangular plates 23 are distributed between the upper arc-shaped plate 25 and the upper extension plate 5, and between the lower arc-shaped plate 24 and the lower extension plate 6. The lower arc-shaped plate 24 is distributed on the lower side of the outer vertical plate 2, and the upper arc-shaped plate 25 is distributed on the upper side of the outer vertical plate 2. Angle steel 26 is arranged on the surface of the inner vertical plate 1 and the outer vertical plate 2, and tie steel 27 is arranged between the inner vertical plate 1 and the outer vertical plate 2.

[0040] The third pre-assembled module group includes an outer wall curved steel plate 28, outer wall curved steel plate studs 29, an inner wall curved steel plate 30, and inner wall curved steel plate studs 31. The outer wall curved steel plate studs 29 are evenly distributed on the inner surface of the outer wall curved steel plate 28, and the inner wall curved steel plate studs 31 are evenly distributed on the inner surface of the inner wall curved steel plate 30. At the two vertical plates 14, the thickness of the outer wall curved steel plate 28 and the inner wall curved steel plate 30 transitions from thick to thin, facilitating connection with the nuclear reactor wall steel plate.

[0041] In the corbel framework of the reactor pressure vessel load-bearing support, the vertical plate 14 is welded and fixed to the inner wall arc-shaped steel plate 30 and the outer wall arc-shaped steel plate 28. One side of the partition plate 16 is welded to the outer wall arc-shaped steel plate 28, the upper arc-shaped plate 25, the outer vertical plate 2, and the lower arc-shaped plate 24; the other side is welded to the upper extension plate 5, the upper frame plate 9, the inner vertical plate 1, the left frame plate 7 (or the right frame plate 8), the left extension plate 3 (or the right extension plate 4), the lower frame plate 10, and the lower extension plate 6. The width of the rectangular stiffening rib 18 is adjusted according to the distance between the upper extension plate 5 and the inner wall arc-shaped steel plate 30 (or the lower extension plate 6 and the inner wall arc-shaped steel plate 30) to better weld and fix it to the upper extension plate 5 (or the lower extension plate 6), the upper frame plate 9 (or the lower frame plate 10), and the inner wall arc-shaped steel plate 30. The lower L-shaped stiffening rib 19 is welded and fixed to the outer vertical plate 2 and the lower arc-shaped plate 24. The upper L-shaped stiffening rib 20 is welded and fixed to the outer wall panel 2 and the upper arc-shaped plate 25. The small stiffening rib 21 is welded and fixed to the outer wall arc-shaped steel plate 28 and the upper arc-shaped plate 25 (or the lower arc-shaped plate 24). The irregular stiffening rib 22 is welded and fixed to the inner wall arc-shaped steel plate 30, the left extension plate 3 (or the right extension plate 4), the upper frame plate 9 (or the lower frame plate 10), and the left frame plate 7 (or the right frame plate 8). The rectangular plate 23 is welded and fixed to the upper arc-shaped plate 25 (or the lower arc-shaped plate 24) and the upper frame plate 9 (or the lower frame plate 10). Two angle steels 26 are used, one welded and fixed to the outer wall panel 2 and the other welded and fixed to the inner wall panel 1. The tie steel 27 is welded and fixed to the angle steel 26.

[0042] The reactor pressure vessel load-bearing support bracket frame structure is pre-assembled into three pre-assembled module groups: a first pre-assembled module group, a second pre-assembled module group, and a third pre-assembled module group. When the combined bracket structure of the nuclear reactor pressure vessel load-bearing support is formed, the bracket frame structure is directly connected to the nuclear reactor wall structure. During concrete pouring, the first, second, and third pre-assembled module groups can directly serve as concrete pouring templates. After the concrete has solidified, the first, second, and third pre-assembled module groups and the concrete form a single unit, eliminating the need to disassemble any components and significantly improving the forming efficiency of the combined bracket structure of the nuclear reactor pressure vessel load-bearing support.

[0043] The reactor pressure vessel load-bearing support achieves effective transmission of the pressure vessel's support reaction force through connection with the reactor pressure vessel load-bearing support bracket frame mechanism.

[0044] This invention also provides a method for forming a reactor pressure vessel load-bearing support bracket frame mechanism. The method includes: first, assembling a first pre-assembled module group, a second pre-assembled module group, and a third pre-assembled module group of the reactor pressure vessel load-bearing support bracket frame mechanism; second, pouring concrete between the outer wall arc-shaped steel plate 28 and the inner wall arc-shaped steel plate 30 using a concrete pouring process, and then placing the left extension plate 3, right extension plate 4, upper extension plate 5, and lower extension plate... 6. Bolt sleeve 11, inner vertical plate stud 12, outer vertical plate stud 13, vertical plate 14, vertical plate stud 15, partition plate 16, partition plate stud 17, rectangular stiffening rib 18, lower L-shaped stiffening rib 19, upper L-shaped stiffening rib 20, small stiffening rib 21, irregular stiffening rib 22, rectangular plate 23, lower arc plate 24, upper arc plate 25, angle steel 26, tie steel 27, outer wall arc steel plate stud 29, inner wall arc steel plate stud 31 are cast in concrete.

[0045] In this invention, the reactor pressure vessel load-bearing support bracket frame mechanism is pre-assembled in the order of the first pre-assembled module group, the second pre-assembled module group, and the third pre-assembled module group, which modularizes the nuclear reactor pressure vessel load-bearing support bracket, thereby improving on-site construction efficiency.

[0046] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. All contents not described in detail in the present invention can be derived from existing technologies.

Claims

1. A reactor pressure vessel load-bearing support bracket frame mechanism, characterized in that: The frame structure includes a first pre-assembled module group, a second pre-assembled module group, and a third pre-assembled module group. The three pre-assembled module groups are assembled sequentially. The first pre-assembled module group includes an inner vertical plate (1), an outer vertical plate (2), a left extension plate (3), a right extension plate (4), an upper extension plate (5), a lower extension plate (6), a left frame plate (7), a right frame plate (8), an upper frame plate (9), a lower frame plate (10), and bolt sleeves (11). The inner vertical plate (1) and the outer vertical plate (2) are distributed between the inner wall arc-shaped steel plate (30) and the outer wall arc-shaped steel plate (28). The bolt sleeves (11) are distributed between the inner vertical plate (1) and the outer vertical plate (28). Between the plates (2); the left extension plate (3), right extension plate (4), upper extension plate (5), and lower extension plate (6) are distributed around the inner vertical plate (1) and are in the same plane as the inner vertical plate (1); the left frame plate (7), right frame plate (8), upper frame plate (9), and lower frame plate (10) are in front of the inner vertical plate (1) and are perpendicular to the inner vertical plate (1); the inner vertical plate (1), outer vertical plate (2), left extension plate (3), right extension plate (4), upper extension plate (5), lower extension plate (6), left frame plate (7), and right frame plate (8) are rectangular plates, and the upper frame plate (9) and lower frame plate (10) are curved plates.

2. The reactor pressure vessel load-bearing support bracket frame mechanism according to claim 1, characterized in that: The first pre-assembled module group includes inner plate studs (12) and outer plate studs (13). The inner plate studs (12) are evenly distributed on the inner and outer surfaces of the inner plate (1), and the outer plate studs (13) are evenly distributed on the inner surface of the outer plate (2). All components of the first pre-assembled module group are fixedly connected into a whole by welding.

3. The reactor pressure vessel load-bearing support bracket frame mechanism according to claim 1, characterized in that: The second pre-assembled module group includes a vertical plate (14), vertical plate studs (15), a partition plate (16), partition plate studs (17), a rectangular stiffening rib (18), a lower L-shaped stiffening rib (19), an upper L-shaped stiffening rib (20), a small stiffening rib (21), an irregular stiffening rib (22), a rectangular plate (23), a lower arc-shaped plate (24), an upper arc-shaped plate (25), an angle steel (26), and a tie steel (27). The vertical plate (14) is distributed between the outer wall arc-shaped steel plate (28) and the inner wall arc-shaped steel plate (30), and is perpendicular to the arc-shaped wall. The surface of the vertical plate (14) is arranged with evenly distributed vertical plate studs (15), and connecting holes are opened at certain intervals. The partition plate (16) is distributed between the inner vertical plate (1) and the outer vertical plate (2), and is perpendicular to the inner vertical plate (1) and the outer vertical plate (2) respectively. The surface of the partition plate (16) is arranged with evenly distributed partition plate studs (17), and connecting holes are opened at certain intervals. Connecting holes are provided; rectangular stiffening ribs (18) are distributed on the upper side of the upper frame plate (9) and the lower side of the lower frame plate (10); upper L-shaped stiffening ribs (20) are distributed on the upper side of the upper arc plate (25), and lower L-shaped stiffening ribs (19) are distributed on the lower side of the lower arc plate (24); small stiffening ribs (21) are distributed on the upper side of the upper arc plate (25) and the lower side of the lower arc plate (24); irregular stiffening ribs (22) are distributed on the left side of the left frame plate (7) and the right frame plate. (8) Right side; rectangular plate (23) is distributed between the upper arc plate (25) and the upper extension plate (5) and between the lower arc plate (24) and the lower extension plate (6); the lower arc plate (24) is distributed on the lower side of the outer vertical plate (2), and the upper arc plate (25) is distributed on the upper side of the outer vertical plate (2); angle steel (26) is arranged on the surface of the inner vertical plate (1) and the outer vertical plate (2), and tie steel (27) is arranged between the inner vertical plate (1) and the outer vertical plate (2).

4. The reactor pressure vessel load-bearing support bracket frame mechanism according to claim 1, characterized in that: The third pre-installed module group includes an outer wall arc-shaped steel plate (28), an outer wall arc-shaped steel plate studs (29), an inner wall arc-shaped steel plate (30), and an inner wall arc-shaped steel plate studs (31). The outer wall arc-shaped steel plate studs (29) are evenly arranged on the inner surface of the outer wall arc-shaped steel plate (28), and the inner wall arc-shaped steel plate studs (31) are evenly arranged on the inner surface of the inner wall arc-shaped steel plate (30). At the two vertical plates (14), the thickness of the outer wall arc-shaped steel plate (28) and the inner wall arc-shaped steel plate (30) transitions from thick to thin, which facilitates connection with the nuclear reactor wall steel plate.

5. The reactor pressure vessel load-bearing support bracket frame mechanism according to claim 3, characterized in that: The vertical plate (14) is welded and fixed to the inner wall arc steel plate (30) and the outer wall arc steel plate (28); the partition plate (16) is welded to the outer wall arc steel plate (28), the upper arc plate (25), the outer vertical plate (2), and the lower arc plate (24) on one side, and to the upper extension plate (5), the upper frame plate (9), the inner vertical plate (1), the left frame plate (7), the left extension plate (3), the lower frame plate (10), and the lower extension plate (6) on the other side; the width of the rectangular stiffening rib (18) is determined according to... The distance between the upper extension plate (5) and the inner wall arc steel plate (30) is adjusted to better weld and fix them to the upper extension plate (5), the upper frame plate (9), and the inner wall arc steel plate (30); the lower L-shaped stiffening rib (19) is welded and fixed to the outer wall plate (2) and the lower arc plate (24); the upper L-shaped stiffening rib (20) is welded and fixed to the outer wall plate (2) and the upper arc plate (25); the small stiffening rib (21) is welded and fixed to the outer wall arc steel plate (28) and the upper arc plate (25).

6. A reactor pressure vessel load-bearing support bracket frame mechanism according to any one of claims 1 to 4, characterized in that, The irregular stiffening rib (22) is welded and fixed to the inner wall arc steel plate (30), the left extension plate (3), the upper frame plate (9), and the left frame plate (7); the rectangular plate (23) is welded and fixed to the upper arc plate (25) and the upper frame plate (9); two angle steels (26), one is welded and fixed to the outer vertical plate (2), and the other is welded and fixed to the inner vertical plate (1); the tie steel (27) is welded and fixed to the angle steel (26).

7. A method for forming a reactor pressure vessel load-bearing support bracket skeleton mechanism according to any one of claims 1 to 6, characterized in that: The methods include: The first step is to assemble the first, second, and third pre-assembled module groups of the reactor pressure vessel load-bearing support bracket frame mechanism; the second step is to pour concrete between the outer wall arc-shaped steel plate (28) and the inner wall arc-shaped steel plate (30) using concrete pouring technology, and install the left extension plate (3), right extension plate (4), upper extension plate (5), lower extension plate (6), bolt sleeve (11), inner vertical plate stud (12), and outer vertical plate stud (13). Vertical plate (14), vertical plate studs (15), partition plate (16), partition plate studs (17), rectangular stiffening rib (18), lower L-shaped stiffening rib (19), upper L-shaped stiffening rib (20), small stiffening rib (21), irregular stiffening rib (22), rectangular plate (23), lower arc plate (24), upper arc plate (25), angle steel (26), tie steel (27), external wall arc steel plate studs (29), internal wall arc steel plate studs (31) are cast in concrete.

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