Indoor terrace type cable laying closed system

Abstract

An indoor terrace type cable laying closed system comprises a plurality of subunit systems, an alternating current switch screen and a screen cabinet, subunits are arranged on the front side and the rear side of the screen cabinet at intervals and located below an indoor electrostatic floor, each subunit is divided into two layers, a weak current groove box is arranged on the first layer of a support formed by angle steel, and a weak current groove box is arranged on the second layer of the support. The second layer of the angle steel bracket is provided with direct-current strong-current groove boxes which are arranged in a staggered manner; the subunits are provided with groove boxes of the same type in front of and behind the screen cabinet, and are matched with bridge interfaces of the weak current groove boxes which are arranged at intervals. According to the utility model, the routing requirements of cables with different types and different purposes in important functional rooms of a transformer substation are met, conflicts and overlapping of different cable paths are avoided, the passing degree of various cables is improved, the communication reliability between communication equipment is improved, and the convenience of later maintenance is improved; and a more flexible double-side wiring mode is provided, and the device can be popularized and expanded to other fields.

Description

Technical Field

[0001] The utility model relates to the field of cable laying in a transformer substation, and in particular to a terraced cable laying closed system in an important functional room in a transformer substation. Background Art

[0002] With the increasing requirements for reliable and intelligent communications in substation construction, higher requirements are placed on the laying and management of various types of power cables in important functional rooms in substations and other rooms with different cable laying routing requirements. Traditional substation cable laying solutions mostly adopt a planar distribution method. Faced with actual operation scenarios such as a large number of cable types, a large number of cables, complex routing paths, and frequent cable additions and changes during operation and maintenance, the cable trough box layout under conventional functional rooms often leads to problems such as incomplete dual cable routing, mixed AC and DC placement, dense and chaotic cable routing, poor heat dissipation, difficulty in later inspection and maintenance, and increased safety hazards.

[0003] For example, the existing dual-route cable laying solution for communication rooms faces many challenges such as mixed AC and DC, low space utilization, insufficient cable safety isolation, and poor flexibility in subsequent expansion and adjustment in response to the growing demand for multi-level, multi-directional, and multi-route cable laying.

[0004] 1) If Figure 1-3 As shown, Figure 1 In the process, different types of cables (AC strong current / DC strong current / weak current) are required to be laid in different trough boxes and form a closed path, which directly leads to the need for different types of trough box channels to cross.

[0005] 2) In addition, due to the horizontal arrangement of different trough boxes on the ground below the electrostatic floor ( Figure 3 As shown in the figure, combined with the intersection of different slot boxes in the plane projection, different types of slot boxes may cross each other, be stacked in multiple layers, or be blocked, which may affect the opening of the slot box cover.

[0006] 3) In Figure 1 In order to meet different routing requirements, the existing cable pathways can only adopt a detour method, that is, between two face-to-face panel cabinets, panel No. 26 to panel No. 48 must go through the left and right detours. The right detour loop is very long, which directly leads to the detour cable occupying other cable laying space, and due to the cable length, this method increases the signal attenuation.

[0007] 4) If Figure 2 As shown, the existing cable laying scheme will directly lead to the crossing and scattering of various types of cables and the cable routing of other trough boxes, which is not only unsightly, but also affects the normal opening of adjacent trough boxes, and also brings certain difficulties to the subsequent operation and maintenance.

[0008] In view of this, it is urgent to develop a cable management system that can fully adapt to the special internal environment of important functional rooms in substations and other rooms with different cable laying route requirements, efficiently utilize three-dimensional space, have scientific and reasonable structural design, convenient and fast construction implementation capabilities, and can flexibly meet different route laying requirements. Utility Model Content

[0009] To achieve the above-mentioned purpose, the utility model provides a terraced cable laying closed system for indoor use, including a plurality of subunit systems, an AC switch panel and a panel cabinet, characterized in that: the subunits are arranged at intervals on the front and rear sides of the panel cabinet and are located under the indoor electrostatic floor, the subunits are divided into two layers, wherein the first layer of the angle steel bracket is provided with a weak current trough box, and the second layer of the angle steel bracket is provided with a DC strong current trough box, and the two layers are arranged in staggered layers; the subunits are arranged with the same type of trough boxes in front and behind the panel cabinet, and are matched with the bridge interfaces of the weak current trough boxes arranged at intervals.

[0010] Furthermore, the angle steel bracket is fixed on the electrostatic floor by expansion bolts.

[0011] Furthermore, the cables all enter the screen cabinet from the rear space of the subunit.

[0012] Furthermore, the AC switch panel is arranged at an edge position close to the outdoor cable trench, and an AC high-voltage trough box is only set on one side, and DC high-voltage trough boxes and low-voltage trough boxes are set at other positions in the terraced cable laying closed system.

[0013] Furthermore, the AC switch panel is arranged in a central position, the weak current slot boxes are arranged on the first layer, the DC strong current slot boxes are placed on the second layer, and the AC strong current slot boxes are arranged on the third layer.

[0014] Positive effects of this utility model:

[0015] 1) The cable laying closure system of the utility model is adopted to realize the cable laying in multiple independent spaces. Each layer of cables is laid in an independent fire-resistant trough box. Different from the situation of stacking trough boxes in previous projects, the opening and laying of each layer of trough boxes do not affect each other, avoiding the conflict and overlap of different cable paths, greatly facilitating the later cable laying work, and improving the reliability and maintenance convenience of cable laying in functional rooms.

[0016] 2) By adopting the utility model, the bottom optical cable and weak-current cable laying bridge interface greatly reduces the communication optical cables between oppositely arranged cabinets compared to the detour laying method of previous projects, effectively saves cable length and signal attenuation, improves the communication reliability between cabinets, and has significant economic and social benefits.

[0017] 3) Realize double-sided cable entry of the panel cabinet, effectively increase the total effective area for cable passage, and make the wiring method more flexible.

[0018] 4) With the utility model, the structure of the cable laying system bracket is clear and simple. After prefabrication, it is convenient and quick to install after the arrangement position of the static floor support keel under the machine room is adjusted on site. If the depth and space allow, it can be further expanded, which greatly improves the scalability of the terraced cable laying closed system.

[0019] 5) By adopting the utility model, the cable laying channel below has a high degree of visualization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Layout diagram of conventional cable laying schemes with different routes under the existing communication room;

[0021] Figure 2 Schematic diagram of the lateral layout of conventional cables with different routes under the existing communication room;

[0022] Figure 3 Installation diagram of conventional cable laying schemes with different routes under the existing communication room;

[0023] Figure 4 Schematic diagram of the basic layout of the terraced cable laying closed system;

[0024] Figure 5 Side view of the basic type of terraced cable laying closed system;

[0025] Figure 6 Installation diagram of the basic type of terraced cable laying closed system

[0026] Figure 7 Schematic diagram of the layout of the terraced cable laying closed system with deep expansion;

[0027] Figure 8 Lateral schematic diagram of the depth-expanded type of the terraced cable laying closed system;

[0028] Among them, 1-outdoor cable trench, 2-DC high-voltage trough box, 3-AC high-voltage trough box, 4-weak-voltage trough box, 5-cable shaft, 6-panel cabinet, 7-bridge interface, 8-cable, 9-static ground, 10-static floor, 11-expansion bolt, 12-angle steel, 13-AC switch panel. DETAILED DESCRIPTION

[0029] Reference Figure 4-Figure 8 , Figure 6This is the basic type of the terraced cable laying closed system. As a subunit of the terraced cable laying bracket system, the angle steel 12 is welded together into a bracket by full welding and fixed, and fixed on the electrostatic ground 9 by expansion bolts 11. This basic subunit is divided into two layers, where the first layer of the bracket is placed with weak current trough boxes 4 with a large number of interconnection requirements, and the second layer is placed with DC strong current trough boxes 2. The problem of stacking on the same layer is avoided by staggered arrangement of the first and second layers. Due to the staggered arrangement of space, the trough box cover between the DC strong current trough box 2 and the weak current trough box 4 does not affect each other when opened. The length of the crossarms of the first and second layers can be adjusted according to different cable requirements.

[0030] like Figure 4 ,like Figure 5 As shown, multiple sub-units are arranged at the front and rear sides of the cabinet 6 and below the electrostatic floor 10 at intervals of 200 mm. The cables 8 enter the cabinet 6 from the rear space of the sub-units. Since the same type of trough channels are arranged at the front and rear sides of the cabinet, the laying pressure of the cable trough channel on one side is relieved. Between two closely arranged weak current trough boxes 4, the interconnection between the face-to-face cabinets 6 is achieved through the bridge interface 7 set at a distance of 2 m.

[0031] like Figure 4 As shown, in this basic layout scheme, the AC switch panel 13 is arranged at the edge of the outdoor cable trench 1, and the AC strong current trough box 3 can be set only on one side, and the DC strong current trough box 2 and the weak current trough box 4 are set at the rest of the terraced cable laying closed system.

[0032] like Figure 7 Figure 8 As shown, for the arrangement of the AC switch panel 13 in the center, the depth of the terraced cable laying closed system can be expanded by increasing the depth and number of layers under the electrostatic floor. The current cable laying method can also be realized. The specific cable routing and trough box arrangement method is the same as the basic type, with the weak current trough box 4 arranged on the first layer, the DC strong current trough box 2 placed on the second layer, and the AC strong current trough box 3 arranged on the third layer.

[0033] The utility model includes optimizing the screen position layout according to different cable laying requirements (dual routing, independent laying of dynamic control cables, independent laying of AC and DC), determining the layout position of the AC switch panel 13, selecting a basic type or a deep expansion type of a terraced cable laying closed system, optimizing the selection of the cable laying closed system bracket size based on different cable quantities, setting corresponding laying system sub-units, and after determining the electrostatic floor keel, optimizing and adjusting the layout and positioning of the laying system bracket; fixing the corresponding cable laying trough box, and carrying out cable laying.

Claims

1. A terraced cable laying closed system for indoor use, comprising a plurality of sub-unit systems, an AC switch panel (13) and a panel cabinet (6), characterized in that: The subunits are arranged at intervals on the front and rear sides of the screen cabinet (6) and are located below the indoor electrostatic floor (10). The subunits are divided into two layers, wherein the first layer of the bracket formed by the angle steel (12) is provided with a weak current slot box (4), and the second layer of the bracket is provided with a DC strong current slot box (2), and the two layers are arranged in a staggered manner; the subunits are arranged with the same type of slot boxes in front and behind the screen cabinet (6), and are matched with the bridge interface (7) of the spaced weak current slot boxes.

2. The terraced cable laying closed system for indoor use according to claim 1, characterized in that: The bracket formed by the angle steel (12) is fixed on the electrostatic ground (9) by means of expansion bolts (11).

3. The indoor terraced cable laying closed system according to claim 1, characterized in that: The cables (8) all enter the screen cabinet (6) from the rear space of the subunit.

4. The terraced cable laying closed system for indoor use according to claim 1, characterized in that: The AC switch panel (13) is arranged near the edge of the outdoor cable trench, and an AC strong current slot box (3) is only arranged on one side, and DC strong current slot boxes (2) and weak current slot boxes (4) are arranged at the rest of the terraced cable laying closed system.

5. The terraced cable laying closed system for indoor use according to claim 1, characterized in that: The AC switch panel (13) is arranged in the center, the first layer is arranged with the weak current slot box (4), the second layer is arranged with the DC strong current slot box (2), and the third layer is arranged with the AC strong current slot box (3).

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