Integrated frame suitable for integrally transforming and replacing interior of industrial control cabinet

Abstract

The invention relates to the field of structural design of instrument control equipment, in particular to an integrated frame suitable for integral transformation and replacement of the interior of an industrial control cabinet, and the integrated frame comprises a welding frame, a bottom bracket, a top connecting frame and a butt-joint screw, and the upper end of the welding frame is connected with the top connecting frame through the butt-joint screw; the lower end of the welding frame is connected with a bottom bracket through butt screws. The welding frame is provided with a wire passing hole and a butt joint hole, the wire passing hole is used for a cable to pass through, and the butt joint hole is used for installing and fixing equipment; and the bottom bracket and the top connecting frame are connected with the cabinet. The case can be installed inside the control cabinet, the through-wall terminal modules and the wire duct assemblies can be installed on the two sides of the control cabinet, overall integration of the case, clamping pieces and various parts in the control cabinet can be achieved, then equipment in the nuclear power unit control cabinet is integrally replaced, and the time needed for transformation and replacement can be greatly shortened.

Description

Technical Field

[0001] The present invention relates to the field of structural design of instrument control equipment, and specifically to an implementation scheme for internally transforming and replacing an integrated frame for an industrial control cabinet. Background Art

[0002] In the field of structural design of nuclear power instrument control equipment, with the increase in the service life of on-site service cabinets, the transformation of old systems has become an important task for nuclear power plants and instrument control manufacturers in recent years. In actual transformation, in order to avoid affecting the construction period and increasing the construction difficulty due to civil engineering construction, laying of main cables, disassembly, lifting and transportation of cabinets, etc., operating nuclear power plants often require not to replace the original cabinet, but only to replace the internal equipment.

[0003] In the prior art, the transformation of only replacing internal equipment mainly faces the following difficulties:

[0004] 1. The structural interfaces of the old and new systems of the cabinet are incompatible, such as the sizes and layouts of the chassis and various modules, resulting in it being difficult for the cabinet to achieve the simplest transformation of replacing in the original position, and a large number of adapter brackets need to be designed and replaced;

[0005] 2. The transformation of the old system of the cabinet is often carried out during nuclear power plant overhauls, and the transformation time is very limited. It takes a lot of time to disassemble, install, and adapt and adjust the components, cables, and brackets inside the cabinet, and it is difficult to complete the transformation task on time;

[0006] 3. Since the mechanical properties and operability of the transformed cabinet cannot be lower than those of the original system, although there are changes in the internal equipment and installation brackets of the cabinet, the load-bearing structure of the original cabinet cannot be strengthened, making the transformation difficult. Summary of the Invention

[0007] The present invention provides an integrated frame suitable for overall internal transformation and replacement of an industrial control cabinet, which is used to solve the problems of time-consuming disassembly and assembly during cabinet transformation, incompatible structural interfaces, and reduction of the mechanical properties and operability of the cabinet caused by the transformation in the prior art.

[0008] The technical solution of the present invention is as follows:

[0009] The present invention proposes an integrated frame suitable for overall internal transformation and replacement of an industrial control cabinet. The device includes a welded frame, a bottom bracket, a top connecting frame, and docking screws. The upper end of the welded frame is connected to the top connecting frame through docking screws, and the lower end of the welded frame is connected to the bottom bracket through docking screws; the welded frame is provided with wire passing holes and docking holes. The wire passing holes are for cables to pass through, and the docking holes are for equipment installation and fixation; the bottom bracket and the top connecting frame are connected to the cabinet.

[0010] In some embodiments, the welding frame includes two groups of welding side frames, longitudinal reinforcing beams, transverse reinforcing beams, and butt joint reinforcing beams. The two ends of the two groups of welding side frames are welded and connected through the butt joint reinforcing beams. A number of transverse reinforcing beams are welded and connected between the middle sections of the two groups of welding side frames. The middle sections of the welding side frames are welded and connected through the longitudinal reinforcing beams.

[0011] In some embodiments, the welding side frame includes two columns, a bottom angle plate, and a top angle plate. The tops of the two columns are welded and connected through the top angle plate. The bottoms of the two columns are welded and connected through the bottom angle plate. The columns have a "channel" cross-section, and the concave area of the columns is used for cable layout.

[0012] In some embodiments, the columns are connected through longitudinal reinforcing beams and transverse reinforcing beams. The columns are provided with wire passing holes and butt joint holes. The butt joint holes are used for installing adapter frames, and the adapter frames are used for connecting to electronic devices.

[0013] In some embodiments, the columns adopt a hollow design, and the columns adopt a gradient hollow design from top to bottom according to the positions of the longitudinal reinforcing beams and transverse reinforcing beams.

[0014] In some embodiments, the longitudinal reinforcing beams and transverse reinforcing beams adopt a diamond-shaped distributed hollow design.

[0015] In some embodiments, a chassis is arranged inside the welding frame. The chassis is installed on the columns. Through-wall terminals are arranged on both sides of the chassis. One end of the through-wall terminal is threadedly connected to the butt joint hole of the column, and the other end of the through-wall terminal is connected to the outer frame of the cabinet.

[0016] In some embodiments, a wire groove assembly is arranged at the lower end of the through-wall terminal. The wire groove assembly is threadedly connected to the welding frame, and the wire groove assembly is used for placing cables.

[0017] In some embodiments, the bottom angle plate and the top angle plate adopt an L-shaped bending structure, and the bearing surfaces of the bottom angle plate and the top angle plate are hollow trapezoidal structures.

[0018] Implementing the present invention has the following beneficial effects:

[0019] The present invention provides an integrated frame suitable for the overall renovation and replacement inside an industrial control cabinet. Implementing the present invention has the following beneficial effects:

[0020] 1. A chassis is installed inside the integrated frame of the present invention, and through-wall terminal modules and wire groove assemblies can be installed on both sides, which can realize the overall integration of the chassis, cards, and various components inside the control cabinet, and then the internal equipment of the in-service nuclear power unit control cabinet can be replaced as a whole, which can greatly shorten the time required for renovation and replacement.

[0021] 2. The present invention has good rigidity, strength and stability through the design of the reinforcement beam, which can further improve the seismic performance of the original control cabinet while facilitating the overall transformation and replacement of the internal equipment of the cabinet.

[0022] 3. The present invention utilizes the original column screw connection interface at the top and bottom of the cabinet, and connects the cabinet to the integrated frame through the bottom bracket and the top connecting frame. The transfer structure design is carried out here, and the other positions use the modified new system design. Therefore, the original cabinet frame can be kept unchanged during the modification, avoiding excessive adaptation work such as the modification of the factory building civil construction foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A front view of an integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet proposed in an embodiment of the present invention;

[0024] Figure 2 A side view of an integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet proposed in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of a welded frame of an integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet proposed in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of a welded side frame of an integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet proposed in an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of a column of an integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet proposed in an embodiment of the present invention;

[0028] Figure 6 A schematic cross-sectional view of a column of an integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet proposed in an embodiment of the present invention;

[0029] Description of the drawings: 1. Cabinet; 102. Docking screws; 103. Through-wall terminal; 104. Adapter frame; 105. Wire trough assembly; 106. Cabinet frame; 2. Integral welded frame; 3. Chassis; 4. Bottom bracket; 5. Top connecting frame; 502. Welded side frame; 6. Column; 7. Longitudinal reinforcement beam; 8. Transverse reinforcement beam; 9. Bottom angle plate; 10. Docking reinforcement beam; 11. Top angle plate; 12. Wire hole; 13. Docking hole. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] As Figures 1 to 6 shown, the present invention proposes an integrated frame suitable for the overall renovation and replacement inside the industrial control cabinet 1. The device includes a welded frame, a bottom bracket 4, a top connection frame 5, and docking screws 102. The upper end of the welded frame is connected to the top connection frame 5 through the docking screws 102, and the other side of the top connection frame 5 is docked with the top of the cabinet 1. The lower end of the welded frame is connected to the bottom bracket 4 through the docking screws 102, and the other end of the bottom bracket 4 is docked with the bottom of the cabinet 1.

[0032] The welded frame 2 is composed of components such as welded side frames 502, longitudinal reinforcing beams 7, transverse reinforcing beams 8, and docking reinforcing beams 10. The welded side frame 502 is assembled by welding 2 columns 6 according to the design dimensions with bottom angle plates 9 and top angle plates 11. A hollow area is formed between the two columns 6, which improves the layout space inside the cabinet and reduces the weight of the frame. The column 6 has a "channel" cross-section. The concave area of the column 6 can be used for cable layout, and the column 6 is provided with a wire passing hole 12 and a docking hole 13. The wire passing hole 12 can allow cables to pass through and also reduces the weight of the frame. The docking hole 13 can be used to install a transfer rack 104. The transfer rack 104 is used for installation and matching with electronic devices with 19-inch interfaces. At the same time, the transfer rack 104 provides a direct installation interface for special components, improving the flexibility of device layout inside the cabinet. The bottom angle plates 9 and top angle plates 11 adopt an L-shaped bending structure, and the bearing surface is a trapezoidal structure with a hollow in the middle. The bottom angle plates 9 and top angle plates 11 are welded to the top and bottom of the column 6 respectively, which can strengthen the structural support.

[0033] Weld the two ends of 2 groups of welded side frames 502 to the docking reinforcing beam 10, and weld the longitudinal reinforcing beam 7 and the transverse reinforcing beam 8 between the columns 6 in the height direction of the welded frame to form an integral welded frame 2. The columns 6, longitudinal reinforcing beams 7, and transverse reinforcing beams 8 are all designed with hollowing based on topology optimization. Among them, the column 6 is gradually hollowed from top to bottom according to the position of the reinforcing beam. As shown in the attached Figure 3 drawing, the number of hollows in the four columns 6 of the frame 502 gradually decreases from top to bottom. The number of hollows is the largest between the top end and the welding position of the first layer of reinforcing beam, followed by the number of hollows between the second layer of reinforcing beam and the third layer of reinforcing beam, and there is no hollowing below the welding position of the third layer of reinforcing beam. This is to make the upper part of the column light and the lower part heavy, so that the center of the overall structure of the frame moves down and is more stable. The longitudinal reinforcing beam 7 and the transverse reinforcing beam 8 are hollowed out in a diamond distribution.

[0034] All kinds of devices inside the present invention adopt integral integration. Components such as the chassis 3 are directly installed on the columns 6 of the welding frame 2. Through-wall terminals 103 are provided on both sides of the chassis 3. One end of the through-wall terminal 103 is threadedly connected to the docking hole 13 on the column 6, and the other end is docked with the outer frame 106 of the cabinet. The through-wall terminal 103 connects the integral welding frame 2 with the outer frame of the cabinet 1 into a whole, further strengthening the wiring space inside the cabinet and the seismic performance of the whole cabinet 1. A wire groove assembly 105 is provided at the lower end of the through-wall terminal 103, and the wire groove assembly 105 is threadedly connected to the welding frame 2. The internal cables of the chassis 3, the through-wall terminal 103 and other devices are laid at the bundling points of the welding frame 2 and placed inside the wire groove assembly 105. When carrying out the transformation work, after the integral welding frame 2 integrates all the transformed devices and cables, it is directly installed as a whole inside the original cabinet. The other end of the through-wall terminal 103 is docked with the outer frame 106 of the cabinet, and then the external wire is directly connected to the through-wall terminal 103 to complete the transformation work.

[0035] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An integrated frame suitable for overall renovation and replacement of the interior of an industrial control cabinet, characterized in that: The device comprises a welding frame, a bottom bracket (4), a top connecting frame (5) and docking screws (102); the upper end of the welding frame is connected to the top connecting frame (5) via the docking screws (102), and the lower end of the welding frame is connected to the bottom bracket (4) via the docking screws (102); the welding frame is provided with a wire hole (12) and a docking hole (13); the wire hole (12) is for cables to pass through, and the docking hole (13) is used for equipment installation and fixing; the bottom bracket (4) and the top connecting frame (5) are connected to a cabinet (1).

2. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 1, characterized in that: The welded frame comprises two groups of welded side frames (502), longitudinal reinforcing beams (7), transverse reinforcing beams (8) and butt-jointed reinforcing beams (10); the two ends of the two groups of welded side frames (502) are welded and connected via the butt-jointed reinforcing beams (10); the middle sections of the two groups of welded side frames (502) are welded and connected via a plurality of the transverse reinforcing beams (8); and the middle sections of the welded side frames (502) are welded and connected via the longitudinal reinforcing beams (7).

3. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 2, characterized in that: The welded side frame (502) comprises two columns (6), a bottom angle plate (9) and a top angle plate (11); the top ends of the two columns (6) are welded together via the top angle plate (11); the bottom ends of the two columns (6) are welded together via the bottom angle plate (9); the columns (6) are of a "J"-shaped cross section; and the concave area of ​​the columns (6) is used for cable arrangement.

4. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 3, characterized in that: The columns (6) are connected via the longitudinal reinforcing beams (7) and the transverse reinforcing beams (8); the columns (6) are provided with the wire holes (12) and the docking holes (13); the docking holes (13) are used for installing an adapter frame (104); and the adapter frame (104) is used for connecting to electronic equipment.

5. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 4, characterized in that: The column (6) adopts a hollow design, and the column (6) adopts a gradual hollow design from top to bottom according to the positions of the longitudinal reinforcement beam (7) and the transverse reinforcement beam (8).

6. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 2, characterized in that: The longitudinal reinforcement beam (7) and the transverse reinforcement beam (8) adopt a diamond-shaped distributed hollow design.

7. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 5, characterized in that: A chassis (3) is provided in the welding frame, and the chassis (3) is mounted on the column (6). Through-wall terminals (103) are provided on both sides of the chassis (3), one end of the through-wall terminal (103) is threadedly connected to the docking hole (13) of the column (6), and the other end of the through-wall terminal (103) is connected to the cabinet outer frame (106).

8. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 7, characterized in that: A wire trough assembly (105) is provided at the lower end of the through-wall terminal (103), the wire trough assembly (105) is threadedly connected to the welding frame, and the wire trough assembly (105) is used to place cables.

9. The one-piece frame suitable for overall renovation and replacement of the interior of an industrial control cabinet according to claim 8, characterized in that: The bottom angle plate (9) and the top angle plate (11) adopt an L-shaped bending structure, and the bearing surfaces of the bottom angle plate (9) and the top angle plate (11) are hollow trapezoidal structures.

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