Lattice type anti-whipping support structure of nuclear power plant conventional island

Abstract

The utility model relates to a lattice type anti-whip support structure of a conventional island of a nuclear power plant, which comprises a support structure body, the support structure body consists of steel frames, horizontal steel inclined struts and vertical steel inclined struts, the number of the steel frames is equal to that of pipelines which are arranged in the conventional island and have anti-whip requirements, and the horizontal steel inclined struts and the vertical steel inclined struts are arranged on the support structure body. The tops of the steel frames are connected through horizontal steel inclined struts, the side bodies of the steel frames are connected with one ends of vertical steel inclined struts, the other ends of the vertical steel inclined struts are welded and fixed to first embedded parts on a conventional island floor, and the bottoms of the steel frames are welded and fixed to second embedded parts on the conventional island floor. As a pipeline anti-throwing support structure of a conventional island of a nuclear power plant, a plurality of anti-throwing supports are connected into a lattice type frame, and the pipeline anti-throwing support structure has the advantages of being clear in force transmission path, convenient to construct, safe, reliable, material-saving and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering structures, and particularly relates to a lattice anti - whipping support structure for the conventional island of a nuclear power plant. Background Technique

[0002] The anti - whipping support is a special structure in the conventional island of a nuclear power plant used to prevent the whipping of pipes caused by the rupture of high - energy pipes. The whipping force generated after the rupture of high - energy pipes is huge. The anti - whipping support needs to release the impact energy generated by the whipping force through deformation. The support is allowed to reach plasticity locally, but should not be damaged as a whole to avoid affecting other structures and equipment in the conventional island. According to this design, a single anti - whipping support often has a high steel consumption, which not only increases the project cost, but also increases the construction difficulty and the difficulty of pipe layout.

[0003] Therefore, a lattice anti - whipping support structure for the conventional island of a nuclear power plant is designed to overcome the above problems. Summary of the Invention

[0004] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a lattice anti - whipping support structure for the conventional island of a nuclear power plant with simple structure, small steel consumption, convenient construction, reasonable cost and better mechanical properties.

[0005] The utility model is realized by the following technical solutions: A lattice anti - whipping support structure for the conventional island of a nuclear power plant, including the support structure body. The support structure body is composed of steel frames, horizontal steel diagonal braces and vertical steel diagonal braces. The number of steel frames is equal to the number of pipes with anti - whipping requirements arranged in the conventional island. The tops of each group of steel frames are respectively connected by horizontal steel diagonal braces. The sides of the steel frames are connected to one end of the vertical steel diagonal braces, and the other end of the vertical steel diagonal braces is welded and fixed to the first embedded part on the floor of the conventional island. The bottoms of the steel frames are respectively welded and fixed to the second embedded part on the floor of the conventional island.

[0006] Preferably: Each group of steel frames is composed of two steel columns and two steel beams. The strong axes of the steel columns and the steel beams are in the same plane. The top and the middle of each steel column are respectively welded and fixed to the steel beam, and a first stiffening plate is arranged on the web at the connection of the steel column and the steel beam. Two steel columns and two steel beams enclose a square hole. Second stiffening plates are arranged on the edges of the square hole on the web of the steel beam. The web of the steel column is welded and fixed to the vertical steel diagonal brace, and the bottom of the steel column is welded and fixed to the second embedded part on the floor of the conventional island.

[0007] Preferably: A third stiffening plate is arranged on the web of the connection surface between the steel column and the vertical steel diagonal brace.

[0008] Preferably: The side length of the square hole is equal to the sum of the diameter of the pipe with a thermal insulation layer and the pipe installation clearance.

[0009] Preferably, the steel columns and steel beams are made of carbon steel, and the horizontal and vertical steel braces are steel pipes made of carbon steel.

[0010] Preferably, the steel columns and steel beams are welded H-shaped steels.

[0011] The beneficial effects of the present utility model are as follows:

[0012] As a pipe anti-sling bracket structure for the conventional island of a nuclear power plant, the present utility model connects multiple anti-sling brackets into a lattice frame, which has the characteristics of clear force transmission path, convenient construction, safety and reliability, and material saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic plan view of the present utility model.

[0014] Figure 2 is Figure 1 the A-A cross-sectional view of

[0015] Figure 3 is Figure 1 the B-B cross-sectional view of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] To make the purposes, technical solutions and advantages of the present invention clearer to those of ordinary skill in the art, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", "vertical", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0018] The present invention will be described in detail below with reference to the accompanying drawings: As Figure 1 shown, a lattice anti-sling bracket structure for the conventional island of a nuclear power plant includes a bracket structure body, and the bracket structure body is composed of a steel frame 1, a horizontal steel brace 2 and a vertical steel brace 3. The number of the steel frames 1 is equal to the number of pipes 4 with anti-sling requirements arranged in the conventional island. The tops of each group of steel frames 1 are respectively connected by a horizontal steel brace 2. One side of the steel frame 1 is connected to one end of the vertical steel brace 3, and the other end of the vertical steel brace 3 is welded and fixed to a first embedded part 22 on the floor of the conventional island. The bottoms of the steel frames 1 are respectively welded and fixed to a second embedded part 21 on the floor of the conventional island.

[0019] As Figures 2-3As shown in the figure, each group of the steel frames 1 is composed of two steel columns 11 and two steel beams 12. The strong axes of the steel columns 11 and the steel beams 12 are in the same plane. The top and middle positions of each steel column 11 are respectively welded and fixed to the steel beam 12, and a first stiffening plate 13 is arranged on the web at the connection of the steel column 11 and the steel beam 12. The two steel columns 11 and the two steel beams 12 enclose a square hole 14. A second stiffening plate 15 is arranged on the edge of the square hole 14 on the web of the steel beam 12. In the weak axis plane of the steel column 11, the web of the steel column 11 is welded and fixed to the vertical steel diagonal brace 3, and the bottom of the steel column 11 is welded and fixed to the second embedded part 21 on the conventional island floor.

[0020] A third stiffening plate 16 is arranged on the web of the connection surface between the steel column 11 and the vertical steel diagonal brace 3. The side length of the square hole 14 is equal to the sum of the diameter of the pipeline 4 provided with the insulation layer and the installation clearance of the pipeline 4. The materials of the steel column 11 and the steel beam 12 are carbon steel, and the horizontal steel diagonal brace 2 and the vertical steel diagonal brace 3 are steel pipes with the material of carbon steel. The steel column 11 and the steel beam 12 can adopt welded H-shaped steel.

[0021] The overall structure of the pipeline anti-throw-off bracket of the present utility model is completed through on-site construction. The lattice anti-throw-off bracket structure of a conventional island of a nuclear power plant of the present utility model connects multiple anti-throw-off brackets into a lattice framework, and has the characteristics of clear force transmission path, convenient construction, safety and reliability, and material saving.

[0022] The specific embodiments described herein are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A lattice anti-swing support structure for a conventional island of a nuclear power plant, comprising a support structure body, characterized in that: The support structure body is composed of a steel frame (1), a horizontal steel diagonal brace (2) and a vertical steel diagonal brace (3). The number of the steel frames (1) is equal to the number of pipes (4) with anti-swing requirements arranged in a conventional island. The tops of each group of steel frames (1) are connected by horizontal steel diagonal braces (2). The side of the steel frame (1) is connected to one end of the vertical steel diagonal brace (3). The other end of the vertical steel diagonal brace (3) is welded and fixed to a first embedded part (22) on a conventional island floor. The bottom of the steel frame (1) is welded and fixed to a second embedded part (21) on a conventional island floor.

2. The lattice anti-swing support structure of the conventional island of a nuclear power plant according to claim 1, characterized in that: Each group of the steel frames (1) is composed of two steel columns (11) and two steel beams (12). The strong axes of the steel columns (11) and the steel beams (12) are in the same plane. The top and middle of each steel column (11) are respectively welded to the steel beam (12). A first stiffening plate (13) is arranged on the web of the connection between the steel column (11) and the steel beam (12). The two steel columns (11) and the two steel beams (12) form a square hole (14). The edge of the square hole (14) is located on the web of the steel beam (12) and a second stiffening plate (15) is arranged. The web of the steel column (11) is welded to the vertical steel brace (3). The bottom of the steel column (11) is welded to the second embedded part (21) on the conventional island floor.

3. The lattice anti-swing support structure of the conventional island of a nuclear power plant according to claim 2, characterized in that: A third stiffening plate (16) is provided on the web of the connection surface between the steel column (11) and the vertical steel brace (3).

4. The lattice anti-swing support structure of the conventional island of a nuclear power plant according to claim 2, characterized in that: The side length of the square hole (14) is equal to the sum of the diameter of the pipe (4) provided with the thermal insulation layer and the installation gap of the pipe (4).

5. The lattice anti-swing support structure of the conventional island of a nuclear power plant according to claim 3, characterized in that: The steel column (11) and the steel beam (12) are made of carbon steel, and the horizontal steel brace (2) and the vertical steel brace (3) are steel pipes made of carbon steel.

6. The lattice anti-swing support structure of the conventional island of a nuclear power plant according to claim 5, characterized in that: The steel column (11) and the steel beam (12) are welded H-shaped steels.

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