Protective structure of diesel generating set control cabinet for nuclear power station

Abstract

The invention relates to the technical field of diesel generating set control cabinets, and discloses a protection structure of a diesel generating set control cabinet for a nuclear power station, which comprises an outer shell and a fixed jack, the back of the protective side plate is connected with a connecting frame plate, and the top of the protective side plate is provided with a fixing plate; limiting side grooves are formed in the front end and the rear end of the center of the top of the fixing plate, limiting side plates are installed on the two sides of the upper portion of the guiding rod, the center of the guiding rod is sleeved with an extrusion spring, a bottom connecting plate is installed at the bottom of the guiding rod, and fixing plugs are installed at the front end and the center of the bottom of the bottom connecting plate. According to the protection structure of the diesel generating set control cabinet for the nuclear power station, after the protection side plates are placed on the periphery of the outer side of the outer shell, the guide rods and the limiting side plates are driven by the extrusion springs to descend along the fixing plates and the limiting side grooves, and the bottom connecting plates drive the fixing plugs to be inserted into the fixing insertion holes. And the protective side plates and the outer shell are convenient to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to the field of diesel generator set control cabinet technology, specifically a protective structure for a diesel generator set control cabinet used in a nuclear power plant. Background Technology

[0002] The diesel generator set control cabinet is a crucial component of a diesel generator set, responsible for controlling its starting, operation, shutdown, and protection functions. It features basic functions and configurations such as start / stop control, instrument display, alarm and protection functions, automatic / manual function selection, and a remote control interface. Diesel generator set control cabinets are used in nuclear power plants, where they play a vital role. Nuclear power plants have extremely high requirements for the stability and reliability of their power supply.

[0003] A typical diesel generator control cabinet used in nuclear power plants usually consists of a main control unit, a power switching system, a monitoring and protection system, an automated control system, a power supply and charging system, and auxiliary components. The control cabinet is first connected to external cables, thus enabling it to perform basic functions such as start / stop control, instrument display, alarm and protection functions, automatic / manual function selection, and a remote control interface.

[0004] Traditional diesel generator control cabinets used in nuclear power plants typically use the cabinet body to protect the internal components. However, the cabinet surface usually has ventilation holes, which not only reduces the overall rigidity but also reduces the protective effect. To address this issue, some diesel generator control cabinets used in nuclear power plants add protective plates to both sides of the cabinet, which are then bolted or welded to the cabinet, thereby increasing the rigidity and protective effect. However, this method only provides limited protection to the sides of the cabinet and cannot provide comprehensive protection around the entire cabinet. Furthermore, the bolted or welded installation method makes it difficult to assemble and disassemble the protective plates from the cabinet. Therefore, a protective structure for diesel generator control cabinets used in nuclear power plants is proposed. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a protective structure for a diesel generator control cabinet in a nuclear power plant, thereby solving the technical problems mentioned above, such as the inability to provide comprehensive protection around the cabinet and the inconvenience of disassembling and assembling the protective plate from the cabinet.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a protective structure for a diesel generator set control cabinet in a nuclear power plant, comprising:

[0009] The outer casing and the door body located on the front of the outer casing, and the top and bottom of the outer casing are provided with fixing holes around the perimeter;

[0010] Protective side panels are provided around the perimeter of the outer casing, and a connecting frame plate is connected to the back of the protective side panels, with a fixing plate installed on the top of the connecting frame plate;

[0011] A guide rod is positioned at the top center of the fixed plate, with limiting side grooves at the front and rear ends of the top center of the fixed plate. Limiting side plates are installed on both sides of the upper part of the guide rod, and a compression spring is sleeved in the center of the guide rod. A bottom connecting plate is installed at the bottom of the guide rod, and a through-hole is provided inside the fixing plug lug at the bottom front, rear, and center positions of the bottom connecting plate. An insulating aluminum plate is also installed on the back of the decorative finished panel substrate. After the protective side plates are placed around the outer perimeter of the outer shell, the guide rod and limiting side plates descend along the fixed plate and limiting side grooves under the action of the compression spring, causing the bottom connecting plate to insert the fixing plug into the fixing hole, connecting the outer shell and the protective side plates. Then, the guide rod is rotated, causing the limiting side plates to misalign with the limiting side grooves. On one hand, the four sets of protective side plate devices provide comprehensive protection for the outer shell; on the other hand, they facilitate the assembly and disassembly of the protective side plates from the outer shell.

[0012] Preferably, the outer casing and the door are hinged together, and the positions, sizes, and shapes of the fixing holes and fixing plugs correspond. The door can be separated from the outer casing, allowing for the inspection and maintenance of the electrical components inside the outer casing.

[0013] Preferably, the limiting side plate and the limiting side groove correspond in size and shape, and the compression spring is tightly fitted with the limiting side plate and the bottom connecting plate respectively. The limiting side plate can move through the limiting side groove, and the limiting side plate and the limiting side groove can be rotated to avoid separation between the guide rod and the fixed plate, thus ensuring the stability of the connection.

[0014] Preferably, a connecting plate is hinged to the upper and lower parts of the center position on the back of the protective side plate, and a sliding block is rotatably connected to the inner side of the connecting plate. When the protective side plate is subjected to external pressure, the sliding block can be moved by the connecting plate.

[0015] Preferably, a guide post is installed at the center of the inner cavity of the connecting frame plate, and a sliding block is sleeved on the upper and lower parts of the center of the guide post. The connecting plate drives the sliding block to move along the surface of the guide post.

[0016] Preferably, a damping spring is fitted onto the surface of the guide post, and the damping spring is in close contact with the sliding block. A vibration damper is also provided at the center of the top of the guide post. When the sliding block moves along the surface of the guide post, it compresses the damping spring, and the damping spring and vibration damper reduce vibration and impact, thereby improving the protection effect on the outer shell.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a protective structure for the control cabinet of a diesel generator set in a nuclear power plant, which has the following beneficial effects:

[0019] The protective structure for the control cabinet of the diesel generator set in a nuclear power plant utilizes four sets of protective side panels placed around the outer perimeter of the outer casing. These side panels provide comprehensive protection for the outer casing. Guide rods and limiting side panels, driven by compression springs, descend along the fixing plate and limiting side groove, allowing the bottom connecting plate to insert the fixing plug into the fixing socket, connecting the outer casing and the protective side panels. Rotating the guide rods then misaligns the limiting side panels with the limiting side grooves, facilitating easy assembly and disassembly of the protective side panels from the outer casing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the outer shell and its connection structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the protective side plate and its connection structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the right side view of the fixing plate of the present invention.

[0024] In the diagram: 1. Outer shell; 2. Door; 3. Fixing socket; 4. Protective side plate; 5. Connecting plate; 6. Connecting frame plate; 7. Guide post; 8. Sliding block; 9. Vibration damping spring; 10. Vibration damper; 11. Fixing plate; 12. Guide rod; 13. Limiting side groove; 14. Limiting side plate; 15. Compression spring; 16. Bottom connecting plate; 17. Fixing plug. Detailed Implementation

[0025] 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 described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This invention provides a technical solution: a protective structure for a diesel generator set control cabinet in a nuclear power plant, comprising: (See attached diagram) Figure 2 The outer shell 1 and the door 2 disposed on the front of the outer shell 1, and the top and bottom of the outer shell 1 are provided with fixing holes 3.

[0027] Please see Figure 2 Protective side plate 4 is provided around the outer shell 1, and a connecting frame plate 6 is connected to the back of the protective side plate 4, and a fixing plate 11 is installed on the top of the connecting frame plate 6.

[0028] Please see Figure 4 A guide rod 12 is located at the top center of the fixed plate 11, and the fixed plate 11 has limiting side grooves 13 at the front and rear ends of the top center. Limiting side plates 14 are installed on the upper two sides of the guide rod 12, and a compression spring 15 is sleeved in the center of the guide rod 12. A bottom connecting plate 16 is installed at the bottom of the guide rod 12, and a fixing plug 17 is installed at the bottom front end, rear end and center of the bottom of the bottom connecting plate 16. The inside of the fixing plug 17 has through insertion holes. A heat-insulating aluminum plate is also installed on the back of the decorative finished plate substrate. After the protective side plate 4 is placed around the outside of the outer shell 1, the guide rod 12 and the limiting side plate 14 are lowered along the fixed plate 11 and the limiting side groove 13 under the action of the compression spring 15, so that the bottom connecting plate 16 drives the fixing plug 17 to be inserted into the inside of the fixing insertion hole 3, connecting the outer shell 1 and the protective side plate 4. Then the guide rod 12 is rotated so that the limiting side plate 14 and the limiting side groove 13 are misaligned. On the one hand, the four sets of protective side plates 4 can provide comprehensive protection for the outer shell 1; on the other hand, they facilitate the disassembly and assembly of the protective side plates 4 and the outer shell 1.

[0029] Please see Figure 2 The outer casing 1 and the door 2 are hinged together, and the fixed socket 3 and the fixed plug 17 are corresponding in position, size and shape. The door 2 can be separated from the outer casing 1, and the electrical components inside the outer casing 1 can be inspected and maintained.

[0030] Please see Figure 4 The limiting side plate 14 and the limiting side groove 13 correspond in size and shape, and the compression spring 15 is tightly fitted with the limiting side plate 14 and the bottom connecting plate 16 respectively. The limiting side plate 14 can move through the limiting side groove 13, and the limiting side plate 14 and the limiting side groove 13 can be rotated to avoid separation between the guide rod 12 and the fixed plate 11, thus ensuring the stability of the connection.

[0031] Please see Figure 3A connecting plate 5 is hinged to the upper and lower parts of the center position on the back of the protective side plate 4, and a sliding block 8 is rotatably connected to the inner side of the connecting plate 5. When the protective side plate 4 is subjected to external pressure, the sliding block 8 can be moved by the connecting plate 5. A guide post 7 is installed at the center position of the inner cavity of the connecting frame plate 6, and the sliding block 8 is sleeved on the upper and lower parts of the center position of the guide post 7. The connecting plate 5 drives the sliding block 8 to move along the surface of the guide post 7. A vibration damping spring 9 is sleeved on the surface of the guide post 7, and the vibration damping spring 9 is in close contact with the sliding block 8. A vibration damper 10 is added at the center position of the top of the guide post 7. The movement of the sliding block 8 along the surface of the guide post 7 will compress the vibration damping spring 9, and the vibration damping spring 9 and the vibration damper 10 will reduce vibration and impact, thereby improving the protection effect of the outer shell 1.

[0032] This solution involves first placing the protective side plate 4 around the outer perimeter of the outer casing 1. Then, guided by the compression spring 15, the guide rod 12 and the limiting side plate 14 descend along the fixing plate 11 and the limiting side groove 13, causing the bottom connecting plate 16 to insert the fixing plug 17 into the fixing socket 3, thus connecting the outer casing 1 and the protective side plate 4. Next, the guide rod 12 is rotated, causing the limiting side plate 14 and the limiting side groove 13 to misalign. When the protective side plate 4 is subjected to external pressure, the connecting plate 5 can move the sliding block 8, which, moving along the surface of the guide post 7, compresses the damping spring 9.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective structure for a diesel generator set control cabinet in a nuclear power plant, characterized in that, include: The outer shell (1) and the door (2) provided on the front of the outer shell (1) are provided with fixing holes (3) around the top and bottom of the outer shell (1); Protective side panels (4) are provided around the outer shell (1), and a connecting frame plate (6) is connected to the back of the protective side panels (4), and a fixing plate (11) is installed on the top of the connecting frame plate (6). A guide rod (12) is set at the top center of the fixed plate (11), and a limiting side groove (13) is opened at the front and rear ends of the top center of the fixed plate (11). Limiting side plates (14) are installed on the upper two sides of the guide rod (12), and a compression spring (15) is sleeved in the center of the guide rod (12). A bottom connecting plate (16) is installed at the bottom of the guide rod (12), and a fixing plug (17) is installed at the bottom front end, rear end and center position of the bottom connecting plate (16).

2. The protective structure for a diesel generator control cabinet in a nuclear power plant according to claim 1, characterized in that: The outer shell (1) and the door (2) are hinged together, and the fixed socket (3) and the fixed plug (17) are corresponding in position, size and shape.

3. The protective structure for a diesel generator set control cabinet in a nuclear power plant according to claim 1, characterized in that: The size and shape of the limiting side plate (14) correspond to the limiting side groove (13), and the compression spring (15) is tightly fitted with the limiting side plate (14) and the bottom connecting plate (16) respectively.

4. The protective structure for a diesel generator control cabinet in a nuclear power plant according to claim 1, characterized in that: The protective side plate (4) has a connecting plate (5) hinged to the upper and lower parts of the center position on the back side, and a sliding block (8) is rotatably connected to the inner side of the connecting plate (5).

5. The protective structure for a diesel generator set control cabinet in a nuclear power plant according to claim 4, characterized in that: A guide post (7) is installed at the center of the inner cavity of the connecting frame plate (6), and a sliding block (8) is sleeved on the upper and lower parts of the center of the guide post (7).

6. The protective structure for a diesel generator set control cabinet in a nuclear power plant according to claim 5, characterized in that: The surface of the guide post (7) is fitted with a damping spring (9), and the damping spring (9) is in close contact with the sliding block (8), and a damper (10) is added at the center of the top of the guide post (7).

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