A pre-assembly tool for the bottom insulation layer of a steam generator

Abstract

The utility model relates to steam generator thermal insulation layer technical field, specifically disclose a steam generator bottom thermal insulation layer preassembly tool, including a plurality of sets of tool connecting frame, frame body, arc moving plate and arc support plate, the tool connecting frame sliding connection is in the frame body, the utility model discloses a tool connecting frame, frame body, arc support plate, arc moving plate, sliding assembly, fixed assembly, mounting assembly and link component are set up, a plurality of sets of arc moving plate are connected through fixed assembly, and mounting assembly installs a plurality of sets of arc support plate, and the tool connecting frame is connected to arc support plate through link component, and it is convenient to carry out the assembly to the thermal insulation layer, and arc moving plate is slidingly connected on arc support plate through sliding assembly, and the arc moving plate drives the positioning frame to rotate, and can conveniently check each size requirement of thermal insulation layer.

Description

Technical Field

[0001] This utility model relates to the technical field of steam generator insulation layer, specifically a pre-assembly tooling for the bottom insulation layer of a steam generator. Background Technology

[0002] The biggest difference in insulation material selection for third-generation nuclear power plants is the widespread use of new types of reflective metal insulation materials, which effectively reduce heat loss from primary circuit equipment such as pressure vessels, evaporators, pressurizers, pumps, and pipelines. Metal insulation connections include both detachable and non-detachable types. The bottom insulation layer of the steam generator is entirely detachable, connected with shock-resistant adjustable latches.

[0003] The metal insulation layer of the steam generator has a large diameter, high height, complex bottom interface, narrow space, and high requirements for installation dimensional accuracy. It must be pre-assembled in the factory before leaving the factory to check the overall assembly dimensions and main interface dimensions of the insulation layer, and to ensure that the gaps and misalignments between the metal insulation blocks meet the technical requirements to ensure the smooth installation of the insulation layer on the nuclear power plant site. Therefore, it is necessary to develop a pre-assembly tooling for the bottom insulation layer of the steam generator to realize the segmented pre-assembly of the metal insulation layer of the steam generator in the factory.

[0004] To address the above issues, a pre-assembly fixture for the bottom insulation layer of a steam generator is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pre-assembly fixture for the bottom insulation layer of a steam generator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pre-assembly fixture for the bottom insulation layer of a steam generator includes several sets of fixture connecting frames, a frame body, an arc-shaped moving plate, and an arc-shaped support plate. The fixture connecting frames are slidably connected to the frame body, and the frame body is provided with a positioning component for fixing the sliding of the fixture connecting frames. The arc-shaped moving plate is slidably connected to the arc-shaped support plate through a sliding component.

[0008] The sliding assembly includes a groove and a pulley. The groove is formed on the top of the arc-shaped support plate, and the pulley is installed on the bottom of the arc-shaped moving plate. The arc-shaped moving plate is snapped onto the arc-shaped support plate, and the pulley is slidably connected in the groove.

[0009] Several sets of arc-shaped movable plates are connected by fixing components, several sets of arc-shaped support plates are connected by mounting components, the tooling connecting frame is connected to the arc-shaped support plate by connecting components, one side of the arc-shaped movable plate is connected to a bracket by bolts, and one end of several sets of brackets away from the arc-shaped movable plate is connected to a positioning frame by bolts.

[0010] In one alternative: the positioning component includes positioning holes and limiting holes, the two sets of positioning holes are respectively opened on both sides of the inner wall of the frame, the positioning holes are internally threaded with limiting bolts, and the tooling connection frame is provided with several sets of limiting holes for connecting with the limiting bolts.

[0011] In one alternative: the fixing component includes a fixing plate and fixing bolts, the bottom of the fixing plate overlaps with the top of two sets of arc-shaped movable plates, the two sets of fixing bolts are threaded onto the fixing plate, and the arc-shaped movable plate has fixing holes for engaging with the threaded connection of the fixing bolts.

[0012] In one alternative: the mounting assembly includes a connecting plate disposed between two sets of arc-shaped support plates, the connecting plate being threadedly connected to two sets of connecting bolts, and one side of the arc-shaped support plate having a connecting hole for threaded connection with the connecting bolts.

[0013] In one alternative: the connecting assembly includes a connecting plate, which is connected to one side of the tooling connecting frame via a first positioning bolt, and the connecting plate is connected to an arc-shaped support plate via a second positioning bolt.

[0014] In one alternative: both sides of the frame are fixedly connected to support legs.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model includes a tooling connection frame, a frame body, an arc-shaped support plate, an arc-shaped moving plate, a sliding component, a fixing component, an installation component, and a connecting component. Several sets of arc-shaped moving plates are connected by the fixing component, and the installation component installs several sets of arc-shaped support plates. The tooling connection frame connects the arc-shaped support plates through the connecting component, facilitating the assembly of the insulation layer. The arc-shaped moving plates are slidably connected to the arc-shaped support plates through the sliding component. Pushing the arc-shaped moving plates drives the positioning frame to rotate, which facilitates the inspection of various dimensional requirements of the insulation layer.

[0017] This utility model uses a positioning component and external tools to disassemble the limit bolt. The tooling connecting frame is then pulled and slid within the frame. After sliding to a suitable height, the limit bolt is inserted into the positioning hole and the corresponding limit hole for fixation. The height of the tooling connecting frame and the frame can be adjusted according to the height of the components to be installed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure where the limiting bolt is located in this utility model.

[0020] Figure 3 This is a structural schematic diagram of the location of the connecting plate in this utility model.

[0021] Figure 4 This is a structural diagram of the location of the fixing plate in this utility model.

[0022] In the diagram: 11. Tooling connecting frame; 12. Frame body; 13. Connecting plate; 14. Positioning frame; 15. Arc-shaped support plate; 16. Positioning hole; 17. Limiting hole; 18. Limiting bolt; 19. Arc-shaped moving plate; 20. Slide groove; 21. Pulley; 22. First positioning bolt; 23. Second positioning bolt; 24. Fixing plate; 25. Fixing bolt; 26. Fixing hole; 27. Connecting plate; 28. Connecting bolt; 29. ​​Connecting hole; 30. Bracket. Detailed Implementation

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-4 In this embodiment, a pre-assembly fixture for the bottom insulation layer of a steam generator includes several sets of fixture connecting frames 11, frame 12, arc-shaped moving plate 19 and arc-shaped support plate 15. The fixture connecting frames 11 are slidably connected inside the frame 12. The frame 12 is provided with a positioning component for fixing the sliding of the fixture connecting frames 11. The arc-shaped moving plate 19 is slidably connected to the arc-shaped support plate 15 through a sliding component.

[0026] The sliding assembly includes a slide groove 20 and a pulley 21. The slide groove 20 is formed on the top of the arc-shaped support plate 15, and the pulley 21 is installed on the bottom of the arc-shaped moving plate 19. The arc-shaped moving plate 19 is snapped onto the arc-shaped support plate 15, and the pulley 21 is slidably connected in the slide groove 20.

[0027] Several sets of arc-shaped movable plates 19 are connected by fixing components, and several sets of arc-shaped support plates 15 are connected by mounting components. The tooling connecting frame 11 is connected to the arc-shaped support plates 15 by connecting components. One side of the arc-shaped movable plate 19 is connected to the bracket 30 by bolts. The end of several sets of brackets 30 away from the arc-shaped movable plate 19 is connected to a set of positioning frames 14 by bolts, so that the arc-shaped movable plate 19 is clamped on the arc-shaped support plate 15, and the pulley 21 is clamped into the slide groove 20. Rotating the bottom of the positioning frame 14 drives the bracket 30 to rotate, so that the arc-shaped movable plate 19 drives the pulley 21 to slide in the slide groove 20, which can facilitate the inspection of various dimensional requirements of the insulation layer.

[0028] The positioning component includes positioning holes 16 and limiting holes 17. The two sets of positioning holes 16 are respectively opened on both sides of the inner wall of the frame 12. The positioning holes 16 are internally threaded with limiting bolts 18. The tooling connecting frame 11 is provided with several sets of limiting holes 17 for connecting with the limiting bolts 18. The limiting bolts 18 are disassembled using external tools, and the tooling connecting frame 11 is pulled to slide inside the frame 12. After sliding to a suitable height, the limiting bolts 18 are inserted into the positioning holes 16 and the corresponding limiting holes 17 for fixing. The height of the tooling connecting frame 11 and the frame 12 can be adjusted according to the height of the components to be installed.

[0029] The fixing assembly includes a fixing plate 24 and fixing bolts 25. The bottom of the fixing plate 24 overlaps with the top of two sets of arc-shaped movable plates 19. The two sets of fixing bolts 25 are threaded onto the fixing plate 24. The arc-shaped movable plates 19 are provided with fixing holes 26 for engaging with the threaded connection of the fixing bolts 25. The fixing plate 24 is placed on top of the two sets of arc-shaped movable plates 19, and the fixing bolts 25 are rotated to screw into the fixing holes 26 to fix the two adjacent sets of arc-shaped movable plates 19.

[0030] The installation assembly includes a connecting plate 27, which is disposed between two sets of arc-shaped support plates 15. Two sets of connecting bolts 28 are threaded onto the connecting plate 27. One side of the arc-shaped support plate 15 has a connecting hole 29 for threaded connection with the connecting bolts 28. The connecting plate 27 is disposed between the two sets of arc-shaped support plates 15. The connecting bolts 28 are screwed into the connecting holes 29 to fix the connecting plate 27, thereby connecting and installing several sets of arc-shaped support plates 15.

[0031] The connecting assembly includes a connecting plate 13, which is connected to one side of the tooling connecting frame 11 via a first positioning bolt 22. The connecting plate 13 is connected to the arc-shaped support plate 15 via a second positioning bolt 23. The first positioning bolt 22 is used to connect the connecting plate 13 and the tooling connecting frame 11, and the second positioning bolt 23 is used to fix the arc-shaped support plate 15 and the connecting plate 13, thereby enabling the connection between the arc-shaped support plate 15 and the tooling connecting frame 11.

[0032] Both sides of the frame 12 are fixedly connected with support legs. By setting support legs, the frame 12 can be supported, thereby improving the overall stability of the tooling.

[0033] The working principle of this utility model is as follows: During installation, the height of the tooling connecting frame 11 and the frame 12 can be adjusted according to the height of the components to be installed. The limiting bolt 18 is disassembled using external tools, and the tooling connecting frame 11 is pulled to slide within the frame 12. After sliding to a suitable height, the limiting bolt 18 is inserted into the positioning hole 16 and the corresponding limiting hole 17 for fixation. The first positioning bolt 22 is used to connect the connecting plate 13 and the tooling connecting frame 11. Then, several sets of arc-shaped support plates 15 are installed between them. A connecting plate 27 is provided between two sets of arc-shaped support plates 15. The connecting bolt 28 is screwed into the connecting hole 29 to fix the connecting plate 27. The fixing plate 24 is placed on the two sets of arc-shaped moving plates. At the top of 19, rotate the fixing bolt 25 into the fixing hole 26 to fix the two adjacent sets of arc-shaped moving plates 19. Then, clamp the arc-shaped moving plate 19 onto the arc-shaped support plate 15 so that the pulley 21 is clamped into the slide groove 20. Use the second positioning bolt 23 to fix the arc-shaped support plate 15 and the connecting plate 13. Then, use bolts to connect the bracket 30 and the arc-shaped moving plate 19. Use bolts to connect and fix the other end of the bracket 30 to the positioning frame 14, which facilitates the assembly of the insulation layer. After assembly, the bottom of the positioning frame 14 can be rotated to drive the bracket 30 to rotate, so that the arc-shaped moving plate 19 drives the pulley 21 to slide in the slide groove 20, which can facilitate the inspection of various dimensional requirements of the insulation layer.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pre-assembly fixture for the bottom insulation layer of a steam generator, comprising several sets of fixture connecting frames (11), a frame (12), an arc-shaped moving plate (19), and an arc-shaped support plate (15), characterized in that: The tooling connecting frame (11) is slidably connected inside the frame (12). The frame (12) is provided with a positioning component for fixing the tooling connecting frame (11) to slide. The arc-shaped moving plate (19) is slidably connected to the arc-shaped support plate (15) through the sliding component. The sliding assembly includes a groove (20) and a pulley (21). The groove (20) is opened on the top of the arc-shaped support plate (15), and the pulley (21) is installed on the bottom of the arc-shaped moving plate (19). The arc-shaped moving plate (19) is snapped onto the arc-shaped support plate (15), and the pulley (21) is slidably connected in the groove (20). Several sets of the arc-shaped movable plates (19) are connected by a fixing component, several sets of the arc-shaped support plates (15) are connected by an installation component, the tooling connecting frame (11) is connected to the arc-shaped support plate (15) by a connecting component, one side of the arc-shaped movable plate (19) is connected to a bracket (30) by bolts, and one end of several sets of brackets (30) away from the arc-shaped movable plate (19) is connected to a set of positioning frames (14) by bolts.

2. The pre-assembly fixture for the bottom insulation layer of a steam generator according to claim 1, characterized in that: The positioning component includes positioning holes (16) and limiting holes (17). The two sets of positioning holes (16) are respectively opened on both sides of the inner wall of the frame (12). The positioning holes (16) are threaded with limiting bolts (18). The tooling connecting frame (11) is provided with several sets of limiting holes (17) for connecting with the limiting bolts (18).

3. The pre-assembly fixture for the bottom insulation layer of a steam generator according to claim 1, characterized in that: The fixing assembly includes a fixing plate (24) and fixing bolts (25). The bottom of the fixing plate (24) overlaps with the top of two sets of arc-shaped movable plates (19). The two sets of fixing bolts (25) are threaded onto the fixing plate (24). The arc-shaped movable plates (19) are provided with fixing holes (26) for threaded connection with the fixing bolts (25).

4. The pre-assembly fixture for the bottom insulation layer of a steam generator according to claim 1, characterized in that: The mounting assembly includes a connecting plate (27) disposed between two sets of arc-shaped support plates (15). Two sets of connecting bolts (28) are threaded onto the connecting plate (27). A connecting hole (29) for threaded connection with the connecting bolts (28) is provided on one side of the arc-shaped support plate (15).

5. The pre-assembly fixture for the bottom insulation layer of a steam generator according to claim 1, characterized in that: The connecting assembly includes a connecting plate (13), which is connected to one side of the tooling connecting frame (11) via a first positioning bolt (22), and the connecting plate (13) is connected to an arc-shaped support plate (15) via a second positioning bolt (23).

6. The pre-assembly fixture for the bottom insulation layer of a steam generator according to claim 1, characterized in that: Both sides of the frame (12) are fixedly connected with support legs.

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