Electric control cabinet outside nuclear power station containment

Abstract

The utility model relates to an electric control cabinet outside a nuclear power station containment, which comprises a shell, a left cabinet door and a right cabinet door, one side of the shell is open, the left cabinet door and the right cabinet door are positioned on the open side of the shell and hinged with the shell, the top of the shell is provided with a first boss extending towards the side surface, and the first boss and the left cabinet door are arranged on the same side. The bottom of the shell is provided with a second boss extending towards the side face, and the second boss and the left cabinet door are arranged on the same side. The electric control cabinet used outside the nuclear power station containment vessel has the following advantages that due to the design of the first boss, more bends are formed on the top of the containment vessel, and the overall strength of the top of the containment vessel is higher; due to the design of the second boss, more bends are formed at the bottom of the shell, the overall strength of the bottom of the shell is higher, meanwhile, the area of the bottom is larger, and placement is more facilitated; the first boss and the second boss are both located on one side of the cabinet door, so that attaching installation of other table faces and the wall face cannot be affected; and the first boss can also play a role in shielding the rain above the cabinet door.

Description

TECHNICAL FIELD

[0001] The utility model relates to nuclear power plant safety equipment technical field, especially nuclear power plant containment outer electric control cabinet. BACKGROUND

[0002] The installation space of various instrument control cabinets, junction boxes, control boxes and distribution control cabinets and other equipment inside and outside the containment is limited, and the structural strength of the box body is required to be high, the traditional box body structural strength is poor, increasing the plate thickness to improve the strength will increase the overall volume, and it is difficult to put into the installation position. UTILITY MODEL CONTENTS

[0003] The utility model provides a nuclear power plant containment outer electric control cabinet, and the structural strength is high.

[0004] The utility model adopts the technical scheme of a nuclear power plant containment outer electric control cabinet, which comprises a shell, a left cabinet door and a right cabinet door, one side of the shell is open, the left cabinet door and the right cabinet door are located on the open side of the shell and are hinged to the shell, the top of the shell is provided with a first boss extending to the side, the first boss is arranged on the same side as the left cabinet door, and the bottom of the shell is provided with a second boss extending to the side.

[0005] Compared with the prior art, the utility model has the advantages that the design of the first boss makes the bending of the top of the shell more, and the overall strength of the top of the shell is higher; the design of the second boss makes the bending of the bottom of the shell more, and the overall strength of the bottom of the shell is higher, and the area of the bottom is larger, which is more conducive to placement; the first boss and the second boss are both located on one side of the cabinet door, do not affect the fitting installation of the other several surfaces and the wall surface, ensure correct installation in the predetermined installation position, and the first boss can also play a rainproof role on the top of the cabinet door.

[0006] In some embodiments of the utility model, the bottom of the shell is provided with a first reinforcing frame, the first reinforcing frame is arranged around the bottom edge of the shell, the bottom surface of the first reinforcing frame is fitted with the inner surface of the shell, and the first gap is arranged between the side surface of the first reinforcing frame and the inner surface of the shell.

[0007] In some embodiments of the utility model, the top of the shell is provided with a second reinforcing frame, the second reinforcing frame is arranged around the top edge of the shell, the top surface of the second reinforcing frame is fitted with the inner surface of the shell, and the second gap is arranged between the side surface of the second reinforcing frame and the inner surface of the shell.

[0008] In some embodiments of the present application, the shell comprises a left plate, a right plate and a back plate, the inner surface of the left plate and the inner surface of the right plate are each provided with a transverse first metal wire groove; the inner surface of the left plate and the inner surface of the right plate are each provided with a vertical second metal wire groove.

[0009] Further, the inner surface of the left plate and the inner surface of the right plate are each provided with a vertical fixing plate; a first mounting plate is arranged between the first metal wire grooves on the same side and adjacent to each other; a second mounting plate is arranged between the fixing plates on both sides; a reinforcing rib is arranged on the inner surface of the back plate.

[0010] In some embodiments of the present application, the outermost side of the left cabinet door and the outermost side of the right cabinet door are arranged in parallel; the outermost side of the first boss is arranged in parallel with the outermost side of the left cabinet door; and the outermost side of the second boss is arranged in parallel with the outermost side of the left cabinet door.

[0011] In some embodiments of the present application, the left cabinet door and the right cabinet door are each provided with a ventilation hole, the ventilation holes are arranged in an up-down relationship; a rain cover is arranged outside the ventilation hole; an observation window is arranged on the left cabinet door; and a button hole is arranged on the left cabinet door and the right cabinet door.

[0012] In some embodiments of the present application, the bottom of the shell is provided with a storage rack.

[0013] In some embodiments of the present application, the right cabinet door is provided with a door lock assembly, the door lock assembly comprises a base and a handle, one end of the handle is rotatably connected with the base, the other end of the handle is buckled with the base, the handle at the buckling position is provided with a lock cylinder, a dust cover for shielding the lock cylinder is arranged on the handle, the dust cover is rotatably connected with the handle, and a lead seal is arranged between the dust cover and the handle.

[0014] Further, the handle is provided with a transmission bar, the handle is meshingly connected with one end of the transmission bar through a gear, the other end of the transmission bar is provided with a connecting rod, the end of the connecting rod is provided with a pulley, in a closed door state, the pulley is attached to the inner surface of the shell; a guide seat is arranged on the inner surface of the right cabinet door, and the connecting rod is arranged in the guide seat. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of embodiment 1 of the present application;

[0016] Figure 2 is a structural schematic view of embodiment 1 of the present application without the left cabinet door and the right cabinet door;

[0017] Figure 3 is a sectional view of embodiment 1 of the present application;

[0018] Figure 4 is Figure 3 an enlarged view of A part in

[0019] Figure 5 isFigure 3 Enlarged view of part B in the image;

[0020] Figure 6 yes Figure 1 Enlarged view of section C in the image;

[0021] Figure 7 This is a schematic diagram of the structure of the right cabinet door in Embodiment 1 of this utility model. Figure 1 ;

[0022] Figure 8 This is a schematic diagram of the structure of the right cabinet door in Embodiment 1 of this utility model. Figure 2 ;

[0023] Figure 9 yes Figure 8 Enlarged view of part D in the image;

[0024] Figure 10 yes Figure 7 Enlarged view of part E in the image.

[0025] In the diagram: 1. Shell; 2. Left cabinet door; 3. Right cabinet door; 4. First boss; 5. Second boss; 6. First reinforcing frame; 7. Base plate; 8. First folding plate; 9. Second reinforcing frame; 10. Top plate; 11. Second folding plate; 12. Left plate; 13. Right plate; 14. Back plate; 15. First metal cable tray; 16. Second metal cable tray; 17. Fixing plate; 18. First mounting plate; 19. Second mounting plate 20. Mounting plate; 21. Reinforcing rib; 22. Ventilation hole; 23. Rain cover; 24. Observation window; 25. Button hole; 26. Shelf; 27. Door lock assembly; 28. Base; 29. ​​Handle; 30. Lock cylinder; 31. Dust cover; 32. Lead seal; 33. Transmission bar; 34. Connecting rod; 35. Pulley; 36. Guide seat; 37. Steel bolt; 38. First through hole; 39. Second through hole; 30. Clearance plate. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Example 1:

[0028] This embodiment provides an external electrical control cabinet for a nuclear power plant containment structure, such as... Figure 1 As shown, the device includes a housing 1, a left cabinet door 2, and a right cabinet door 3. The housing 1 has an opening on one side. The left cabinet door 2 and the right cabinet door 3 are located on the opening side of the housing 1 and are hinged to the housing 1. The top of the housing 1 is provided with a first protrusion 4 extending to the side. The first protrusion 4 is located on the same side as the left cabinet door 2. The bottom of the housing 1 is provided with a second protrusion 5 extending to the side. The second protrusion 5 is located on the same side as the left cabinet door 2.

[0029] The design of the first boss 4 makes the bending of the top of the shell 1 more and the overall strength of the top of the shell 1 higher; the design of the second boss 5 makes the bending of the bottom of the shell 1 more and the overall strength of the bottom of the shell 1 higher, and the area of the bottom is larger, which is more conducive to placement; the first boss 4 and the second boss 5 are located on one side of the cabinet door and do not affect the fitting and installation of the other several surfaces with the wall surface; the first boss 4 can also play a role of rain blocking above the cabinet door.

[0030] In order to improve the strength, as shown in Figure 3 , Figure 4 , the bottom of the shell 1 is provided with a first reinforcing frame 6, and the first reinforcing frame 6 is arranged around the bottom edge of the shell 1; the bottom surface of the first reinforcing frame 6 is fitted with the inner surface of the shell 1, and a first gap is provided between the side surface of the first reinforcing frame 6 and the inner surface of the shell 1; the first reinforcing frame 6 comprises a bottom plate 7 and a first folded plate 8 folded upward, and the first folded plate 8 is arranged around the edge of the bottom plate 7; adjacent first folded plates 8 are connected by welding; the size of the first gap is 1-2mm. The design of the first reinforcing frame 6 improves the structural strength of the bottom of the shell 1 and has good support when contacting the ground; the shell 1 will deform after welding, and the design of the first gap facilitates the placement of the first reinforcing frame 6 at the bottom of the shell 1, preventing the first reinforcing frame 6 from being stuck; compared with the commonly used angle iron welding to form a frame, the first reinforcing frame 6 adopts plate bending, and the overall structural strength is higher.

[0031] In order to improve the strength, as shown in Figure 5 , the top of the shell 1 is provided with a second reinforcing frame 9, and the second reinforcing frame 9 is arranged around the top edge of the shell 1; the top surface of the second reinforcing frame 9 is fitted with the inner surface of the shell 1, and a second gap is provided between the side surface of the second reinforcing frame 9 and the inner surface of the shell 1; the second reinforcing frame 9 comprises a top plate 10 and a second folded plate 11 folded downward, and the second folded plate 11 is arranged around the edge of the top plate 10; adjacent second folded plates 11 are connected by welding; the size of the second gap is 1-2mm. The design of the second reinforcing frame 9 improves the structural strength of the top of the shell 1; the shell 1 will deform after welding, and the design of the second gap facilitates the placement of the second reinforcing frame 9 at the top of the shell 1, preventing the second reinforcing frame 9 from being stuck; compared with the commonly used angle iron welding to form a frame, the second reinforcing frame 9 adopts plate bending, and the overall structural strength is higher.

[0032] In order to improve the strength, as shown in Figure 2As shown, the housing 1 includes a left plate 12, a right plate 13, and a back plate 14. A first horizontal metal groove 15 is provided on the inner surface of both the left plate 12 and the right plate 13; a second vertical metal groove 16 is provided on the inner surface of both the left plate 12 and the right plate 13. The design of the first metal groove 15 can be used for component routing and also improves the lateral strength of the left plate 12 and the right plate 13, reducing deformation of the left plate 12 and the right plate 13. The design of the second metal groove 16 can be used for component routing and also improves the vertical strength of the left plate 12 and the right plate 13, reducing deformation of the left plate 12 and the right plate 13.

[0033] To improve strength, vertical fixing plates 17 are provided on the inner surfaces of both the left plate 12 and the right plate 13; a first mounting plate 18 is provided between adjacent first metal wire grooves 15 on the same side; a second mounting plate 19 is provided between the fixing plates 17 on both sides; and a reinforcing rib 20 is provided on the inner surface of the back plate 14. The design of the fixing plates 17 can be used to install the second mounting plate 19, and can also improve the vertical strength of the left plate 12 and the right plate 13, reducing the deformation of the left plate 12 and the right plate 13; the first mounting plate 18 can be used to install components, and can also strengthen the left plate 12 and the right plate 13; the reinforcing rib 20 is used to strengthen the back plate 14.

[0034] In this embodiment, the first metal wire groove 15, the second metal wire groove 16 and the fixing plate 17 are all connected to the housing 1 by welding.

[0035] For aesthetic purposes, the outermost edges of the left cabinet door 2 and the right cabinet door 3 are arranged parallel to each other; the outermost edge of the first protrusion 4 is arranged parallel to the outermost edge of the left cabinet door 2; and the outermost edge of the second protrusion 5 is arranged parallel to the outermost edge of the left cabinet door 2. Both the first protrusion 4 and the second protrusion 5 are flush with the cabinet doors, ensuring that the footprint of the cabinet does not increase and that the overall appearance is aesthetically pleasing.

[0036] For the purpose of ventilation, such as Figure 7 , Figure 8 As shown, both the left cabinet door 2 and the right cabinet door 3 are provided with ventilation holes 21, which are arranged vertically opposite each other. A rain cover 22 is provided outside the ventilation holes 21. An observation window 23 is provided on the left cabinet door 2. Both the left cabinet door 2 and the right cabinet door 3 are provided with button holes 24. The vertical arrangement of the ventilation holes 21 facilitates the flow of hot air from the top and the entry of cold air from the bottom. The rain cover 22 prevents rainwater from entering the interior through the ventilation holes 21. The observation window 23 can be used to observe the operation of the components inside the cabinet, which is especially necessary when the door lock assembly 26 cannot be opened. The observation window 23 can also be used for installing a display screen.

[0037] In this embodiment, two ventilation holes 21 are arranged on the left cabinet door 2 and the right cabinet door 3, one on the top and one on the bottom.

[0038] In order to facilitate the placement of articles, the bottom of the shell 1 is provided with a rack 25. The design of the rack 25 is convenient for placing maintenance tools such as notebook computers and the like after opening the cabinet door. The UPS power supply can also be installed on the rack 25, which can be used in the case of power failure, improving the safety of use.

[0039] In order to improve safety, as shown in Figure 6 , Figure 9 The right cabinet door 3 is provided with a door lock assembly 26, and the door lock assembly 26 includes a base 27 and a handle 28. One end of the handle 28 is rotatably connected to the base 27, and the other end of the handle 28 is buckled to the base 27. The handle 28 at the buckling position is provided with a lock core 29, and the handle 28 is provided with a dust cover 30 for shielding the lock core 29. The dust cover 30 is rotatably connected to the handle 28, and a lead seal 31 is provided between the dust cover 30 and the handle 28. Specifically, one end of the handle 28 is rotatably connected to the base 27 through a rotating shaft, and a steel bolt 36 is provided on the rotating shaft. A first through hole 37 is provided on the dust cover 30, and a second through hole 38 is provided on the handle 28. The lead seal 31 connects the dust cover 30 and the handle 28 by passing through the first through hole 37 and the second through hole 38. The electric control cabinet for nuclear power generally cannot open the cabinet door. The dust cover 30 and the handle 28 are fixed by the lead seal 31, and the dust cover 30 cannot be opened to ensure that the key cannot be inserted into the lock core 29, the lock core 29 is not unlocked, and the handle 28 cannot be popped out and rotated, so that the cabinet door cannot be opened.

[0040] In order to lock the cabinet door reliably, as shown in Figure 10 The handle 28 is provided with a transmission bar 32, and the handle 28 is meshingly connected to one end of the transmission bar 32 through a gear. The other end of the transmission bar 32 is provided with a connecting rod 33, and the distal end of the connecting rod 33 is provided with a pulley 34. In the closed state, the pulley 34 is attached to the inner surface of the shell 1. A guide seat 35 is provided on the inner surface of the right cabinet door 3, and the connecting rod 33 is provided in the guide seat 35. Specifically, the rotating shaft of the handle 28 is meshingly connected to the transmission bar 32 through a gear. An L-shaped avoiding plate 39 is provided between the pulley 34 and the connecting rod 33. One end of the avoiding plate 39 is connected to the pulley 34, and the other end is connected to the connecting rod 33. The avoiding plate 39 is used to avoid the door frame. The rotation of the handle 28 can drive the transmission bar 32 to move up and down, and the movement of the transmission bar 32 can drive the connecting rod 33 to move, so that the pulley 34 moves up and down. The pulley 34 can be attached to or separated from the inner surface of the shell 1, thereby completing the locking or unlocking of the cabinet door. The design of the pulley 34 is convenient and reduces friction, and it is more labor-saving to lock the door. The design of the guide seat 35 ensures the reliable movement direction of the connecting rod 33.

[0041] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. An external electrical control cabinet for a nuclear power plant containment structure, comprising a housing (1), a left cabinet door (2), and a right cabinet door (3), wherein one side of the housing (1) is open, and the left cabinet door (2) and the right cabinet door (3) are located on the open side of the housing (1) and hinged to the housing (1), characterized in that, The top of the housing (1) is provided with a first protrusion (4) extending to the side, and the first protrusion (4) is located on the same side as the left cabinet door (2). The bottom of the housing (1) is provided with a second protrusion (5) extending to the side, and the second protrusion (5) is located on the same side as the left cabinet door (2).

2. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: The bottom of the housing (1) is provided with a first reinforcing frame (6), which is arranged around the bottom edge of the housing (1); the bottom surface of the first reinforcing frame (6) is in contact with the inner surface of the housing (1), and a first gap is provided between the side surface of the first reinforcing frame (6) and the inner surface of the housing (1); the first reinforcing frame (6) includes a bottom plate (7) and an upwardly folded first folding plate (8), which is arranged around the edge of the bottom plate (7); adjacent first folding plates (8) are connected by welding.

3. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: The top of the housing (1) is provided with a second reinforcing frame (9), which is arranged around the top edge of the housing (1); the top surface of the second reinforcing frame (9) is in contact with the inner surface of the housing (1), and a second gap is provided between the side of the second reinforcing frame (9) and the inner surface of the housing (1); the second reinforcing frame (9) includes a top plate (10) and a downwardly folded second folding plate (11), which is arranged around the edge of the top plate (10); adjacent second folding plates (11) are connected by welding.

4. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: The housing (1) includes a left plate (12), a right plate (13) and a back plate (14). The inner surfaces of the left plate (12) and the right plate (13) are provided with a first horizontal metal groove (15); the inner surfaces of the left plate (12) and the right plate (13) are provided with a second vertical metal groove (16).

5. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 4, characterized in that: Vertical fixing plates (17) are provided on the inner surface of the left plate (12) and the inner surface of the right plate (13); a first mounting plate (18) is provided between the first metal wire grooves (15) on the same side and adjacent to each other; a second mounting plate (19) is provided between the fixing plates (17) on both sides; and a reinforcing rib (20) is provided on the inner surface of the back plate (14).

6. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: The outermost edges of the left cabinet door (2) and the right cabinet door (3) are arranged in parallel; the outermost edge of the first protrusion (4) is arranged in parallel with the outermost edge of the left cabinet door (2); the outermost edge of the second protrusion (5) is arranged in parallel with the outermost edge of the left cabinet door (2).

7. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: Ventilation holes (21) are provided on both the left cabinet door (2) and the right cabinet door (3), and the ventilation holes (21) are arranged opposite each other vertically; a rain cover (22) is provided outside the ventilation holes (21); an observation window (23) is provided on the left cabinet door (2); and button holes (24) are provided on both the left cabinet door (2) and the right cabinet door (3).

8. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: The bottom of the housing (1) is provided with a shelf (25).

9. The electrical control cabinet for use outside the containment of a nuclear power plant according to claim 1, characterized in that: The right cabinet door (3) is provided with a door lock assembly (26). The door lock assembly (26) includes a base (27) and a handle (28). One end of the handle (28) is rotatably connected to the base (27), and the other end of the handle (28) is fastened to the base (27). The handle (28) at the fastening point is provided with a lock cylinder (29). The handle (28) is provided with a dust cover (30) for covering the lock cylinder (29). The dust cover (30) is rotatably connected to the handle (28), and a lead seal (31) is provided between the dust cover (30) and the handle (28).

10. A nuclear power plant containment external electrical control cabinet according to claim 9, characterized in that: The handle (28) is provided with a transmission bar (32). The handle (28) is connected to one end of the transmission bar (32) by a gear. The other end of the transmission bar (32) is provided with a connecting rod (33). The end of the connecting rod (33) is provided with a pulley (34). When the door is closed, the pulley (34) is in contact with the inner surface of the housing (1). The inner surface of the right cabinet door (3) is provided with a guide seat (35). The connecting rod (33) passes through the guide seat (35).

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