Novel floor cable trench laying structure for all-indoor transformer substation

Abstract

The utility model discloses a novel floor cable trench laying structure for an all-indoor transformer substation. In an all-indoor transformer substation project, a building surface layer is arranged on a reinforced concrete floor of a structural layer, a cable trench is arranged in the building surface layer, the sectional dimension of the cable trench is determined according to the number of special cables for electrical engineering, and the width of the cable trench can be 400-1200 mm. First angle steel is pre-embedded in two sides of the top of the groove, and anchor bars of the first angle steel are poured in a building surface layer; the angle steel II is reversely buckled and welded with the angle steel I, and the height of a welding leg is 4mm; a checkered steel plate with rib plates completely covers the top of the cable groove, and the thickness of the checkered steel plate is 8 mm. And after the cable groove pattern cover plate is laid, the top surface of the pattern steel plate is as high as the building ground. According to the utility model, the top of the cable trench is arranged through the double angle steel, thereby preventing the cable trench from being damaged during the operation and maintenance of a transformer station.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, and more specifically to a novel fully indoor substation floor cable trench laying structure. Background Art

[0002] According to the electrical layout requirements of the indoor substation project, due to the large number of pipelines in the second-floor capacitor room, shallow cable trenches were set up in previous projects for the use of cables for professional equipment laying, and the width of the cable trenches varied from 400mm to 1200mm. At present, the general methods for trench covers are prefabricated concrete covers and covered with patterned steel plates. The two cover methods are determined by the owner's operating unit. When patterned steel plates are used to cover the trench, the traditional method is to pre-embed an angle steel at the corner of the cable trench and then cover it with patterned steel plates.

[0003] At present, the groove cover has the following defects:

[0004] 1. The reinforced concrete cover is heavy, which is not conducive to later operation and maintenance;

[0005] 2. In the traditional method of covering with patterned steel plates, due to the close spacing between the upper and lower positive angles, only one angle steel 8 is pre-buried in the project (such as Figure 1 and Figure 2 As shown in the figure), the two positive corners cannot be protected and the cable trench is easily damaged during operation and maintenance.

[0006] 3. Traditional patterned steel plate layout can only be used for small-sized cable trenches. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a novel fully indoor substation floor cable trench laying structure for laying cables for substation equipment.

[0008] The utility model discloses a novel cable trench laying structure for the floor of a fully indoor substation, which is realized by the following technical scheme. In the fully indoor substation project, the structural layer reinforced concrete floor 1 is the building surface layer 2, and the cable trench is arranged in the building surface layer. Its cross-sectional size is determined according to the number of cables laid by the electrical profession, and the width can be 400mm-1200mm. Angle steel 1 3 is embedded on both sides of the top of the trench, and the anchor bar 4 of the angle steel 1 3 is cast in the building surface layer 2; the angle steel 2 5 is buckled and welded with the angle steel 1 3, and the height of the weld foot is 4mm; the patterned steel plate 6 with ribs 7 is completely covered on the top of the cable trench, and the thickness of the patterned steel plate is 8mm. When the patterned cover plate of the cable trench is laid, the top surface of the patterned steel plate is flush with the height of the building ground.

[0009] Angle steel 1 uses #5 angle steel with dimensions of 50mm x 5mm (width x thickness); Angle steel 2 uses #4 angle steel with dimensions of 40mmx 4mm (width x thickness).

[0010] The ribs are located on the bottom surface of the patterned steel plate. The rib specifications are: 4mm thick, 42mm high, and B+20mm long, where B is the net width of the cable trench.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model arranges the top of the cable trench with double angle steel, which can avoid damage to the cable trench during the operation and maintenance of the substation. At the same time, by arranging ribs on the patterned steel plate and matching the embedded angle steel structure, the cable trench width can be increased to 1200mm, increasing the flexibility of electrical cable laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the structural schematic diagrams of the existing cable trench laying structure (pre-buried angle steel at the upper positive corner);

[0014] Figure 2 This is the second structural diagram of the existing cable trench laying structure (embedded angle steel at the lower inner corner);

[0015] Figure 3 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In the following description, many specific details are set forth in order to fully understand the utility model, and the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model.

[0017] like Figure 3As shown, in the fully indoor substation project, the structural layer reinforced concrete floor 1 is the building surface layer 2, and the cable trench is arranged in the building surface layer. Its cross-sectional size is determined according to the number of cables laid by the electrical profession, and the width can be 400mm-1200mm. Angle steel 1 3 is embedded on both sides of the top of the trench, and the anchor bar 4 of angle steel 1 3 is cast in the building surface layer 2; angle steel 2 5 is reversed and welded with angle steel 1 3, and the weld foot height is 4mm; the patterned steel plate 6 with ribs 7 is completely covered on the top of the cable trench, and the rib specifications are -4mmx42mmx (B+20) mm, and the thickness of the patterned steel plate is 8mm. When the cable trench patterned cover is laid, the top surface of the patterned steel plate is at the same height as the building ground. Angle steel 1 uses #5 angle steel, with a size of 50mm x 5mm (width x thickness); angle steel 2 uses #4 angle steel, with a size of 40mm x 4mm (width x thickness).

[0018] Compared with the general practice, the utility model can be applied to larger groove sections, with the applicable range increased to 1200mm, avoiding the inapplicability of concrete cover plate maintenance and the impracticability of traditional patterned steel plate practices; on the other hand, the new structural method at the top of the groove can perfectly realize the laying of patterned steel plates, avoiding damage to the cable trench during operation and maintenance, and has good applicability.

[0019] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A new type of fully indoor substation floor cable trench laying structure, the structural layer reinforced concrete floor slab is the building surface layer, the cable trench is arranged in the building surface layer, Its characteristics are: Angle steel one is embedded on both sides of the top of the groove, and the anchor bars of angle steel one are cast in the building surface layer; angle steel two is placed adjacent to angle steel one, and the long sides of angle steel two are welded to angle steel one respectively, and the weld foot height is 4mm; the patterned steel plate with ribs is completely covered on the top of the cable trench, and the thickness of the patterned steel plate is 8mm.

2. According to the new fully indoor substation floor cable trench laying structure described in claim 1, Its characteristics are: Angle steel 1 adopts #5 angle steel, and its dimensions are: width x thickness is 50mm x 5mm; Angle steel 2 adopts #4 angle steel, and its dimensions are: width x thickness is 40mm x 4mm.

3. The new fully indoor substation floor cable trench laying structure according to claim 1, Its characteristics are: The ribs are located on the bottom surface of the patterned steel plate. The rib specifications are: 4mm thick, 42mm high, and B+20mm long, where B is the net width of the cable trench.

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