DCS cabinet for nuclear power plant

Abstract

The utility model discloses a DCS (Distributed Control System) cabinet for a nuclear power plant, which comprises a DCS cabinet body, a wiring and wire protecting mechanism and a wire bunching mechanism, the wiring and wire protecting mechanism comprises a wiring assembly and a wire protecting assembly. The wiring assembly, the wire protection assembly and the wire bunching mechanism are all located in the DCS cabinet body; the wiring assembly comprises a vertical plate and a wiring seat. The vertical plate is vertically arranged in the DCS cabinet body, and the wire holder is arranged on the vertical plate; the wire protection assembly comprises a connecting plate, a connecting strip, an expansion blooming clamp and a nut. The back surface of the connecting plate is mounted on the vertical plate and is positioned below the wire holder; a connecting strip is fixedly mounted on the front surface of the connecting plate; an expansion blooming clip is fixedly mounted at the top of the connecting strip; a nut is installed on the outer portion of the expansion blooming clamp in a threaded mode and can rotate in the axial direction of the expansion blooming clamp. And through the arrangement of the wiring and protecting mechanism and the bunching mechanism, the situation that the connected cable is damaged due to misoperation of an operator is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear power operation and maintenance, in particular to a DCS cabinet used in a nuclear power plant. Background Art

[0002] The DCS cabinet of a nuclear power plant controls hundreds of systems, nearly 10,000 pieces of equipment, and various working conditions in the plant. In order to ensure the stability of cable docking, a cabinet wiring device is required to connect the special cables used to output signals with the cabinet.

[0003] In the traditional DCS cabinet wiring device, due to the lack of wiring protection mechanism and wire bundling mechanism, during the inspection and maintenance of the DCS cabinet by operators, operators may make operating errors, causing the connected cables to be subjected to a large pulling force, thereby causing the connected cables to be damaged. Utility Model Content

[0004] In view of this, the utility model provides a DCS cabinet for a nuclear power plant, which can prevent the connected cables from being damaged due to operating errors by operators.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A DCS cabinet for a nuclear power plant, comprising a DCS cabinet body, and also comprising: a wiring protection mechanism and a wire bundling mechanism;

[0007] The wiring and wire protection mechanism comprises: a wiring assembly and a wire protection assembly;

[0008] The wiring assembly, the wire protection assembly and the wire harness mechanism are all located in the DCS cabinet;

[0009] The wiring assembly comprises: a vertical plate and a wiring seat;

[0010] The vertical plate is vertically arranged in the DCS cabinet, and the wiring socket is arranged on the vertical plate;

[0011] The wire protection assembly comprises: a connecting plate, a connecting strip, an expansion flower clamp and a nut;

[0012] The back of the connecting plate is mounted on the vertical plate and is located below the wiring seat; the connecting strip is fixedly mounted on the front of the connecting plate, and an expansion flower clip is fixedly mounted on the top of the connecting strip; a nut is mounted on the external thread of the expansion flower clip, and the nut can be rotated along the axial direction of the expansion flower clip;

[0013] The cables are allowed to pass through the cable harness mechanism in sequence, and the inside of the expanded flower clamp is connected to the wiring assembly.

[0014] Preferably, the wire protection assembly further comprises: a friction pad;

[0015] The friction pad is fixedly installed inside the expanded flower clamp, and the cable can pass through the through hole of the friction pad to connect with the wiring assembly.

[0016] Preferably, the wire protection assembly further comprises: a fixing plate and a plurality of groups of elastic components;

[0017] The back side of the fixing plate is arranged on the vertical plate;

[0018] A plurality of groups of the elastic components are arranged between the back side of the connecting plate and the front side of the fixing plate, and are arranged along the length direction of the fixing plate; the length direction of the fixing plate is parallel to the side wall direction of the DCS cabinet body.

[0019] Preferably, each group of the elastic components comprises: a telescopic rod and a spring;

[0020] The fixed end of the telescopic rod is connected to the front side of the fixed plate, and the free end of the telescopic rod is connected to the back side of the connecting plate;

[0021] The spring is sleeved on the telescopic rod, and one end of the spring is connected to the front side of the fixing plate, and the other end is connected to the back side of the connecting plate.

[0022] Preferably, the number of the elastic components is three groups;

[0023] The three groups of elastic components are evenly spaced and arranged along the length direction of the fixing plate.

[0024] Preferably, the wire harness mechanism comprises: a rotating limit seat, a rotating orifice plate and a threaded rod;

[0025] The rotation limit seat is fixedly mounted on the inner side of the side wall of the DCS cabinet, and a rotation hole plate is rotatably mounted inside the rotation limit seat; the length direction of the rotation limit seat is parallel to the side wall direction of the DCS cabinet;

[0026] The rotating orifice plate is provided with a plate through hole penetrating through the thickness direction thereof, and the cable passes through the plate through hole, the wire protection assembly and the wiring assembly in sequence to connect;

[0027] The side wall of the DCS cabinet body is provided with a threaded hole, and one end of the threaded rod passes through the threaded hole and is connected to the rotating hole plate; the threaded rod can rotate along the axial direction of the threaded hole to make the rotating hole plate rotate around the length direction of the rotating limit seat.

[0028] Preferably, the number of the plate through holes is multiple;

[0029] The plurality of plate through holes are evenly spaced and arranged along the width or length direction of the rotating orifice plate.

[0030] Preferably, the cable harness mechanism further comprises: a rotating connection seat and a slider;

[0031] The rotating orifice plate is provided with a slide groove, and the setting direction of the slide groove is perpendicular to the length direction of the rotating limit seat;

[0032] The slider has a sliding portion and a hinged portion; the sliding portion is slidably installed in the slide groove, and the hinged portion is hingedly installed in the rotating connection seat; one end of the threaded rod passes through the threaded hole and is connected to the back side of the rotating connection seat.

[0033] Preferably, the wiring assembly comprises: a plurality of uprights, a back plate, an upright plate, a wiring seat, a side ventilation grille plate and a horizontal ventilation grille plate;

[0034] The plurality of columns are fixedly mounted on the inner bottom side of the DCS cabinet, and the plurality of columns form a rectangular frame;

[0035] A back plate is fixedly mounted on the back of the rectangular frame, side ventilation grille plates are mounted on opposite sides of the rectangular frame, and the horizontal ventilation grille plate is mounted on the top of the rectangular frame;

[0036] The vertical plate is installed between the opposite side ventilation grille plates, and the wiring seat and the wire protection assembly are installed on the side of the vertical plate facing away from the back plate.

[0037] Preferably, it also includes: support legs and a bottom plate;

[0038] The supporting legs are fixedly mounted on the bottom of the DCS cabinet body, and the bottom plate is fixedly mounted on the bottom of the supporting legs.

[0039] It can be seen from the above technical solutions that the DCS cabinet for a nuclear power plant provided by the utility model can prevent the connected cables from being damaged due to operating errors by the operators through the arrangement of the cable bundling mechanism and the cable protection assembly, thereby preventing the connected cables from being affected by inspection and maintenance.

[0040] In the technical solution, a horizontal ventilation grille plate and a side ventilation grille plate are provided to facilitate heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A schematic diagram of the overall structure of a DCS cabinet provided in an embodiment of the utility model;

[0043] Figure 2 A schematic diagram of the structure of a wiring protection mechanism provided by an embodiment of the utility model;

[0044] Figure 3 A schematic diagram of a wiring socket and other structures provided by an embodiment of the utility model;

[0045] Figure 4 A schematic diagram of the structure of a wire protection assembly provided in an embodiment of the utility model;

[0046] Figure 5 A schematic structural diagram of an embodiment of a wire harness mechanism provided by an embodiment of the utility model;

[0047] Figure 6 This is a schematic structural diagram of another embodiment of the wiring harness mechanism provided in an embodiment of the utility model.

[0048] Among them, 1. DCS cabinet;

[0049] 2. Wiring and wire protection mechanism; 21. Wiring assembly; 211. Upright column; 212. Horizontal ventilation grille plate; 213. Side ventilation grille plate; 214. Back plate; 215. Upright plate; 216. Wiring seat; 217. Bolt; 22. Wire protection assembly; 221. Fixed plate; 222. Telescopic rod; 223. Connecting plate; 224. Spring; 225. Connecting strip; 226. Expanding flower clip; 227. Friction pad; 228. Nut;

[0050] 3. Cable harness mechanism; 31. Rotating limit seat; 32. Rotating orifice plate; 321. Plate through hole; 322. Slide groove; 33. Threaded rod; 34. Rotating connecting seat; 35. Sliding block; 351. Sliding part; 352. Articulated part;

[0051] 4. Support leg;

[0052] 5. Base plate. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] The utility model embodiment provides a DCS cabinet for a nuclear power plant, such as Figure 1-Figure 6 As shown, it includes a DCS cabinet body 1, and also includes: a wiring protection mechanism 2 and a wire bundling mechanism 3;

[0055] The wiring and wire protection mechanism 2 comprises: a wiring assembly 21 and a wire protection assembly 22;

[0056] The wiring assembly 21, the wire protection assembly 22 and the wire harness mechanism 3 are all located in the DCS cabinet body 1;

[0057] like Figure 2 As shown, the wiring assembly 21 includes: a vertical plate 215 and a wiring seat 216;

[0058] The vertical plate 215 is vertically arranged in the DCS cabinet body 1, and the wiring socket 216 is arranged on the vertical plate 215;

[0059] The wire protection assembly 22 includes: a connecting plate 223, a connecting strip 225, an expansion flower clamp 226 and a nut 228;

[0060] The back of the connecting plate 223 is mounted on the vertical plate 215 and is located below the wiring seat 216; a connecting strip 225 is fixedly mounted on the front of the connecting plate 223, and an expansion flower clip 226 is fixedly mounted on the top of the connecting strip 225; a nut 228 is mounted on the external thread of the expansion flower clip 226, and the nut 228 can rotate along the axial direction of the expansion flower clip 226;

[0061] The cables are allowed to pass through the cable harness mechanism 3 in sequence, and the inside of the expanded flower clip 226 is connected to the wiring assembly 21 .

[0062] In the above technical solution, after the cables pass through the cable harness mechanism 3, the cable protection assembly 22 and the wiring assembly 21 in sequence and are connected, the cable protection assembly 22 and the cable harness mechanism 3 play a role of fixing and binding the cables; during the inspection and maintenance of the DCS cabinet, the operator makes an operating error, causing the connected cables to be subjected to a large pulling force, but because the cable protection assembly 22 and the cable harness mechanism 3 play a role of fixing and binding the cables, the connected cables are prevented from being damaged, thereby preventing the connected cables from being affected by the inspection and maintenance.

[0063] It should also be noted that in the above technical solution, after the cable passes through the inside of the expanded flower clamp 226 and connects with the wiring assembly 21, the nut 228 is rotated upward (such as Figure 4 In the upward direction), during the upward rotation, the expansion flower clamp 226 is tightened to fix the cable to prevent the cable from being damaged by dragging, thereby protecting the cable after docking.

[0064] Optimize the above technical solutions, such as Figure 2-Figure 4 As shown, the wire protection assembly 22 further includes: a friction pad 227;

[0065] The wire protection assembly 22 further includes: a friction pad 227;

[0066] A friction pad 227 is fixedly installed inside the expanded flower clamp 226 , and the cable can pass through the through hole of the friction pad 227 to connect with the wiring assembly 21 .

[0067] In the above technical solution, after the cable passes through the through hole of the friction pad 227 and connects with the wiring assembly 21, the nut 228 is rotated upward (such as Figure 4 In the upward rotation process, the friction pad 227 plays the role of fixing the cable to prevent the cable from being damaged by dragging, thereby realizing the function of protecting the cable after docking. In addition, the material of the friction pad 227 is elastic material, which is conducive to protecting the cable located in the friction pad 227; it should be noted that the axial length of the friction pad 227 is the same as the axial length of the expansion flower clamp. In some embodiments, a certain length of the cable is reserved between the terminal block 216 and the expansion flower clamp 226 to play a buffering role and prevent the pulling force from directly acting on the docking point; it should be noted that the expansion flower clamp 226 is an open fastener.

[0068] Further optimization of the above technical solution, such as Figure 4 As shown, the wire protection assembly 22 further includes: a fixing plate 221 and a plurality of sets of elastic components;

[0069] The back side of the fixing plate 221 is disposed on the vertical plate 215;

[0070] A plurality of sets of elastic components are disposed between the back side of the connecting plate 223 and the front side of the fixing plate 221 , and are arranged along the length direction of the fixing plate 221 ; the length direction of the fixing plate 221 is parallel to the side wall direction of the DCS cabinet body 1 .

[0071] In the above technical solution, under the action of the elastic component, a buffer can be provided for the cable to prevent the cable from being damaged by dragging, thereby better realizing the function of protecting the connected cables.

[0072] Further optimize the above technical solution, such as Figure 4As shown, each set of elastic components includes: a telescopic rod 222 and a spring 224;

[0073] The fixed end of the telescopic rod 222 is connected to the front side of the fixed plate 221, and the free end of the telescopic rod 222 is connected to the back side of the connecting plate 223;

[0074] The spring 224 is sleeved on the telescopic rod 222 , and one end of the spring 224 is connected to the front side of the fixing plate 221 , and the other end of the spring 224 is connected to the back side of the plate 223 .

[0075] In the above technical solution, the arrangement of the telescopic rod 222 and the spring 224 provides a buffer for the cable to prevent it from being damaged due to accidental dragging. It should be noted that the arrangement of the telescopic rod 222 and the spring 224 plays a role of double-layer protection.

[0076] Further optimize the above technical solution, such as Figure 4 As shown, the number of elastic components is three groups;

[0077] The three groups of elastic components are evenly spaced and arranged along the length direction of the fixing plate 221 .

[0078] In the above technical solution, by setting up three groups of elastic components, when the elastic components are compressed, a greater elastic force is generated, thereby providing a better buffering effect for the cable.

[0079] In this technical solution, if Figure 5 and Figure 6 As shown, the wire harness mechanism 3 includes: a rotating limit seat 31, a rotating hole plate 32 and a threaded rod 33;

[0080] like Figure 1 and Figure 4 The rotation limit seat 31 is fixedly installed on the inner side of the side wall of the DCS cabinet body 1, and a rotation hole plate 32 is rotatably installed inside the rotation limit seat 31; the length direction of the rotation limit seat 31 is parallel to the side wall direction of the DCS cabinet body 1;

[0081] The rotating orifice plate 32 is provided with a plate through hole 321 that runs through the thickness direction thereof, and the cables pass through the plate through hole 321, the wire protection assembly 22 and the wiring assembly 21 in sequence to connect;

[0082] The side wall of the DCS cabinet body 1 is provided with a threaded hole, and one end of the threaded rod 33 passes through the threaded hole and is connected to the rotating hole plate 32; the threaded rod 33 can rotate along the axial direction of the threaded hole to make the rotating hole plate 32 rotate around the length direction of the rotating limit seat 31.

[0083] In the above technical solution, the plate through hole 321 can be provided to restrain the cable; it should be noted that the rotation angle (rotation direction such as Figure 5 It should also be noted that the required rotation angle of the rotating orifice plate 32 can be adjusted according to actual needs; in addition, the diameter of the threaded rod 33 matches the diameter of the threaded hole.

[0084] Optimize the above technical solutions, such as Figure 5 As shown, there are multiple plate through holes 321 , and the multiple plate through holes 321 are evenly spaced and arranged along the width or length direction of the rotating orifice plate 32 .

[0085] In the above technical solution, the arrangement of multiple plate through holes 32 can facilitate cable management, and different types of cables can pass through different plate through holes 32, which is beneficial for later maintenance and management.

[0086] Optimize the above technical solutions, such as Figure 5 and Figure 6 As shown, the harness mechanism 3 further includes: a rotating connection seat 34 and a slider 35;

[0087] The rotating orifice plate 32 is provided with a slide groove 322, and the setting direction of the slide groove 322 is perpendicular to the length direction of the rotating limit seat 31;

[0088] The slider 35 has a sliding portion 351 and a hinge portion 352 ; the sliding portion 351 is slidably installed in the slide groove 322 , and the hinge portion 352 is hingedly installed in the rotating connection seat 34 ; one end of the threaded rod 33 passes through the threaded hole and is connected to the back side of the rotating connection seat 34 .

[0089] In the above scheme, by setting the rotating connecting seat 34 and the slider 35, the rotating connecting seat 34 can be made to rotate more smoothly; as a preference, the rotating hole plate 32 is rotated until the plate surface of the rotating hole plate 32 is horizontal (at this time, the rotating hole plate 32 and the bottom surface of the DCS cabinet are parallel), and then it stops rotating, and then the cable passes through the plate through hole 321.

[0090] In this technical solution, if Figure 2 As shown, the wiring assembly 21 includes: a plurality of columns 211, a back plate 214, a vertical plate 215, a wiring seat 216, a side ventilation grille plate 213 and a horizontal ventilation grille plate 212;

[0091] A plurality of columns 211 are fixedly installed on the inner side of the bottom of the DCS cabinet body 1, and a rectangular frame is formed between the plurality of columns 211;

[0092] A back plate 214 is fixedly installed on the back of the rectangular frame, side ventilation grille plates 213 are installed on opposite sides of the rectangular frame, and a horizontal ventilation grille plate 212 is installed on the top of the rectangular frame;

[0093] A vertical plate 215 is installed between the opposite side ventilation grille plates 213, and a wiring socket 216 and a wire protection assembly 22 are installed on the side of the vertical plate 215 facing away from the back plate 214; it should be noted that the wiring socket 216 and the wire protection assembly 22 are installed toward the cabinet door of the DCS cabinet body, so that it is easy to maintain.

[0094] In the above technical solution, the side ventilation grille plates and the horizontal ventilation grille plates are provided to facilitate heat dissipation; the rectangular frame structure is simple and stable, which is conducive to extending the service life of the DCS cabinet body 1.

[0095] In this technical solution, if Figure 1 As shown, it also includes: support legs 4 and a bottom plate 5;

[0096] A support leg 4 is fixedly mounted on the bottom of the DCS cabinet body 1 , and a bottom plate 5 is fixedly mounted on the bottom of the support leg 4 .

[0097] In the above technical solution, the support legs 4 and the bottom plate 5 play a supporting and isolating role, which can raise the DCS cabinet body to a certain height, isolate the moisture on the ground, and avoid damage to the components in the DCS cabinet due to moisture.

[0098] In some embodiments, the wiring seat 216 is provided with a connection hole opening perpendicular to the circuit board, the cable is connected to the connection hole opening, and the wiring direction of the cable is perpendicular to the circuit board.

[0099] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features.

[0100] The present invention is further described below in conjunction with specific embodiments:

[0101] Embodiment 1:

[0102] See also Figure 1-Figure 6 The utility model provides a technical solution: a DCS cabinet for a nuclear power plant, comprising a DCS cabinet body 1, a wiring protection mechanism 2 and a wire harness mechanism 3 are arranged inside the DCS cabinet body 1, a support leg 4 is fixedly installed at the bottom of the DCS cabinet body 1, and a bottom plate 5 is fixedly installed at the bottom of the support leg 4.

[0103] The wiring and wire protection mechanism 2 comprises a wiring assembly 21 and a wire protection assembly 22 . The wire protection assembly 22 is arranged on the front side of the wiring assembly 21 .

[0104] Furthermore, the wiring assembly 21 includes a column 211, which is fixedly installed on the inner side of the bottom of the DCS cabinet body 1, and a horizontal ventilation grille plate 212 and a side ventilation grille plate 213 are fixedly installed on the inner side of the column 211. A back plate 214 is fixedly installed on the back of the back column 211, and a vertical plate 215 is fixedly installed on the inner side of the horizontal ventilation grille plate 212. A wiring seat 216 is fixedly installed on the front of the vertical plate 215, and a bolt 217 is installed on the internal thread of the wiring seat 216 to facilitate the connection of cables through the wiring assembly 21.

[0105] Furthermore, a threading hole is provided inside the terminal block 216, thread grooves are provided at corresponding positions of the terminal block 216 and the bolt 217, and the bolt 217 is threadedly installed inside the thread groove provided inside the terminal block 216, so as to fix the wire in a normal state.

[0106] Furthermore, the wire protection assembly 22 includes a fixing plate 221, which is fixedly installed on the front side of the horizontal air ventilating grille plate 212, a telescopic rod 222 is fixedly installed on the front side of the fixing plate 221, a connecting plate 223 is fixedly installed on the front side of the telescopic rod 222, a spring 224 is fixedly installed on the back of the connecting plate 223, a connecting strip 225 is fixedly installed on the front side of the connecting plate 223, an expansion flower clamp 226 is fixedly installed on the top of the connecting strip 225, a friction pad 227 is fixedly installed inside the expansion flower clamp 226, and a nut 228 is installed on the external thread of the expansion flower clamp 226, so as to prevent the cable from being damaged by dragging through the wire protection assembly 22.

[0107] Furthermore, the spring 224 is arranged outside the telescopic rod 222, and one end of the spring 224 away from the connecting plate 223 is fixedly installed on the front side of the fixing plate 221, so as to provide buffering for the cable.

[0108] Embodiment 2:

[0109] See also Figure 5 and Figure 6 In combination with the first embodiment, it is further obtained that the cable binding mechanism 3 includes a rotation limit seat 31, the rotation limit seat 31 is fixedly installed on the inner side of the DCS cabinet body 1, a rotation hole plate 32 is rotatably installed inside the rotation limit seat 31, a threaded rod 33 is threadedly installed inside the DCS cabinet body 1, a rotation connection seat 34 is rotatably installed inside the threaded rod 33, and a slider 35 is rotatably installed inside the rotation connection seat 34, so as to facilitate the cable binding and fixing by the cable binding mechanism 3.

[0110] Furthermore, grooves are provided at corresponding positions of the rotating orifice plate 32 and the slider 35 , and the slider 35 is slidably installed in the hole provided in the rotating orifice plate 32 , so as to facilitate the rotation of the rotating orifice plate 32 .

[0111] The cable is then passed through the expansion clamp 226 and the end of the cable is inserted into the wiring seat 216. The bolt 217 is then turned to fix the cable. After a sufficient length is reserved, the nut 228 is turned to move the nut 228 upward. At this time, the expansion clamp 226 can clamp the cable and the friction pad 227 is used to prevent the cable from slipping, so that the cable will not move easily. When the cable is dragged, the telescopic rod 222 is extended by the reserved length. Under the action of the spring 224, a buffer is provided for the cable to avoid damage due to accidental dragging.

[0112] Compared with the prior art, the utility model provides a DCS cabinet for a nuclear power plant, which has the following beneficial effects:

[0113] 1. The DCS cabinet used in the nuclear power plant has a wiring protection mechanism. During use, the cables can be connected and fixed by the provided bolts. The design of the horizontal ventilation grille plate and the side ventilation grille plate can facilitate heat dissipation. The connected cables are fixed by expanding the flower clips. Under the action of the spring, the cables can be buffered to prevent them from being damaged by back dragging, thereby realizing the function of protecting the connected cables.

[0114] 2. The DCS cabinet used in the nuclear power plant, through the cable bundling mechanism, during use, the cables are passed through the holes of the rotating hole plate, and the rotating hole plate is rotated so that the rotating hole plate can bind and fix the cables while threading the cables in batches. At the same time, the three holes provided can facilitate cable management, thereby realizing the function of binding and fixing the cables.

[0115] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0116] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A DCS cabinet for a nuclear power plant, comprising a DCS cabinet body (1), characterized in that: Also includes: A wiring protection mechanism (2) and a wiring harness mechanism (3); The wiring and wire protection mechanism (2) comprises: a wiring assembly (21) and a wire protection assembly (22); The wiring assembly (21), the wire protection assembly (22) and the wire harnessing mechanism (3) are all located inside the DCS cabinet body (1); The wiring assembly (21) comprises: a vertical plate (215) and a wiring seat (216); The vertical plate (215) is vertically arranged in the DCS cabinet body (1), and the wiring socket (216) is arranged on the vertical plate (215); The wire protection assembly (22) comprises: a connecting plate (223), a connecting strip (225), an expansion flower clamp (226) and a nut (228); The back side of the connecting plate (223) is mounted on the vertical plate (215) and is located below the wiring seat (216); the connecting strip (225) is fixedly mounted on the front side of the connecting plate (223), and the top of the connecting strip (225) is fixedly mounted with an expansion flower clip (226); a nut (228) is mounted on the external thread of the expansion flower clip (226), and the nut (228) can rotate along the axial direction of the expansion flower clip (226); The cables are allowed to pass through the cable harnessing mechanism (3) in sequence, and the interior of the expanded flower clamp (226) is connected to the wiring assembly (21).

2. The DCS cabinet according to claim 1, characterized in that: The wire protection assembly (22) further includes: a friction pad (227); The friction pad (227) is fixedly mounted inside the expanded flower clamp (226), and the cable can pass through the through hole of the friction pad (227) to connect with the wiring assembly (21).

3. The DCS cabinet according to claim 2, characterized in that: The wire protection assembly (22) further comprises: a fixing plate (221) and a plurality of groups of elastic assemblies; The back side of the fixing plate (221) is arranged on the vertical plate (215); A plurality of groups of the elastic components are arranged between the back side of the connecting plate (223) and the front side of the fixing plate (221), and are arranged along the length direction of the fixing plate (221); the length direction of the fixing plate (221) is parallel to the side wall direction of the DCS cabinet body (1).

4. The DCS cabinet according to claim 3, characterized in that: Each group of the elastic components comprises: a telescopic rod (222) and a spring (224); The fixed end of the telescopic rod (222) is connected to the front side of the fixing plate (221), and the free end of the telescopic rod (222) is connected to the back side of the connecting plate (223); The spring (224) is sleeved on the telescopic rod (222), and one end of the spring (224) is connected to the front side of the fixing plate (221), and the other end is connected to the back side of the connecting plate (223).

5. The DCS cabinet according to claim 3, characterized in that: The number of the elastic components is three groups; The three groups of elastic components are evenly spaced and arranged along the length direction of the fixing plate (221).

6. The DCS cabinet according to claim 1, characterized in that: The wire harness mechanism (3) comprises: a rotating limit seat (31), a rotating orifice plate (32) and a threaded rod (33); The rotation limit seat (31) is fixedly mounted on the inner side of the side wall of the DCS cabinet body (1), and a rotation hole plate (32) is rotatably mounted inside the rotation limit seat (31); the length direction of the rotation limit seat (31) is parallel to the side wall direction of the DCS cabinet body (1); The rotating orifice plate (32) is provided with a plate through hole (321) penetrating the thickness direction thereof, and the cable passes through the plate through hole (321), the wire protection assembly (22) and the wiring assembly (21) in sequence to be connected; A threaded hole is provided on the side wall of the DCS cabinet body (1), and one end of the threaded rod (33) passes through the threaded hole and is connected to the rotating hole plate (32); the threaded rod (33) can rotate along the axial direction of the threaded hole to enable the rotating hole plate (32) to rotate around the length direction of the rotating limit seat (31).

7. The DCS cabinet according to claim 6, characterized in that: The number of the plate through holes (321) is multiple; The plurality of plate through holes (321) are evenly spaced and arranged along the width or length direction of the rotating orifice plate (32).

8. The DCS cabinet according to claim 6, characterized in that: The wire harness mechanism (3) further comprises: a rotating connection seat (34) and a sliding block (35); The rotating orifice plate (32) is provided with a slide groove (322), and the setting direction of the slide groove (322) is perpendicular to the length direction of the rotating limit seat (31); The slider (35) comprises a sliding portion (351) and a hinged portion (352); the sliding portion (351) is slidably mounted in the slide groove (322), and the hinged portion (352) is hingedly mounted in the rotating connection seat (34); one end of the threaded rod (33) passes through the threaded hole and is connected to the back side of the rotating connection seat (34).

9. The DCS cabinet according to any one of claims 1 to 8, characterized in that: The wiring assembly (21) comprises: a plurality of upright posts (211), a back plate (214), an upright plate (215), a wiring seat (216), a side ventilation grille plate (213) and a horizontal ventilation grille plate (212); The plurality of upright posts (211) are fixedly mounted on the inner side of the bottom of the DCS cabinet body (1), and the plurality of upright posts (211) form a rectangular frame; A back plate (214) is fixedly mounted on the back of the rectangular frame, side ventilation grille plates (213) are mounted on opposite sides of the rectangular frame, and the horizontal ventilation grille plate (212) is mounted on the top of the rectangular frame; The vertical plate (215) is installed between the opposite side ventilation grille plates (213), and the wiring seat (216) and the wire protection assembly (22) are installed on the side of the vertical plate (215) facing away from the back plate (214).

10. The DCS cabinet according to claim 1, characterized in that: Also includes: Support legs (4) and base plate (5); The support legs (4) are fixedly mounted on the bottom of the DCS cabinet body (1), and the bottom plate (5) is fixedly mounted on the bottom of the support legs (4).

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