PT unit gas tank of environment-friendly gas insulation cabinet

Abstract

The utility model provides a PT unit gas tank of an environment-friendly gas insulation cabinet, which relates to the technical field of power distribution switch control equipment and comprises a front cover plate, a rear cover plate, a left side cover plate, a right side cover plate and a top cover plate, the front cover plate, the left side cover plate, the rear side cover plate and the right cover plate are connected end to end, and the top cover plate is arranged at the top to form a tank body; a bus sleeve is arranged on the top cover plate, the distance between the installation position of the bus sleeve and the right cover plate is 250 mm, an isolation switch is installed in the box body, the two sides of the isolation switch are connected with the front cover plate and the rear cover plate respectively, and the isolation switch is installed close to the left cover plate. The upper pile head at the top of the isolating switch is arranged corresponding to the bus sleeve, and the upper pile head at the top of the isolating switch is directly connected with the bus sleeve through a fastener.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution switch control equipment, in particular to an environmentally friendly gas insulation cabinet PT unit gas box. Background Art

[0002] The high-voltage environmentally friendly gas insulated cabinet PT unit gas box is an essential basic component for the operation of high-voltage gas-filled ring network equipment. When installing the bus bushing and the disconnector, copper busbars are often required for connection. In the production work, if the output is large and the construction period is tight, a lot of material costs and labor costs are required. Specifically, the use of copper busbars, the production and installation processes of workers will cause many inconveniences, time-consuming, labor-intensive and material-intensive. In addition, there may be poor contact, scratches during installation, and other problems and accidents. In addition, the overall stability of the installation in the unit gas box is relatively weak, and the service life is relatively short. Utility Model Content

[0003] The purpose of the utility model is to provide an environmentally friendly gas insulated cabinet PT unit gas box, which is used to optimize the structure of the environmentally friendly gas insulated cabinet PT unit gas box, so that the bus bushing can be directly installed corresponding to the disconnector, reducing the intermediate copper busbar connection, improving the installation efficiency, and at the same time reducing the probability of accidents caused by poor contact.

[0004] The utility model is realized by the following technical scheme: comprising a front cover plate, a rear cover plate, a left cover plate, a right cover plate and a top cover plate, wherein the front cover plate, the left cover plate, the rear cover plate and the right cover plate are connected end to end, and the top cover plate is arranged on the top to form a box body;

[0005] A busbar bushing is arranged on the top cover plate, and the installation position of the busbar bushing is 250 mm away from the right cover plate. An isolating switch is installed in the box body, and the two sides of the isolating switch are respectively connected to the front cover plate and the rear cover plate. The isolating switch is installed close to the left cover plate, and the upper pile head on the top of the isolating switch is arranged corresponding to the busbar bushing, and the upper pile head on the top of the isolating switch is directly connected to the busbar bushing through a fastener.

[0006] In order to better realize the utility model, further, the two sides of the isolating switch are respectively a front mounting plate and a rear mounting plate, the front mounting plate is connected to the front cover plate, and the rear mounting plate is connected to the rear cover plate.

[0007] In order to better realize the utility model, further, the front mounting plate is closely attached to the inner side of the front cover plate, and the front mounting plate is fixedly connected to the front cover plate by welding nails.

[0008] In order to better realize the utility model, further, a rear reinforcing rib is arranged between the rear mounting plate and the rear cover plate, and a welding block is also arranged on the side of the rear reinforcing rib facing the rear cover plate to connect the rear reinforcing rib with the rear cover plate.

[0009] In order to better realize the utility model, further, the front cover plate includes a straight panel and an inverted L-shaped panel, the inverted L-shaped panel is arranged at the bottom of the straight panel, and a three-phase integrated current transformer is installed on the inverted L-shaped panel;

[0010] The isolating switch is connected with a lower branch copper rod, and the lower branch copper rod is connected to the three-phase integrated current transformer through an inlet and outlet bushing.

[0011] In order to better realize the utility model, further, the outer wall of the front cover plate is also installed with an operating mechanism for operating the isolating switch.

[0012] In order to better realize the utility model, further, a sleeve pressing plate is provided on the top cover plate, the sleeve pressing plate is L-shaped, a mounting hole is opened on the sleeve pressing plate, the busbar sleeve is installed in the mounting hole, and the sleeve pressing plate is fixedly connected to the top cover plate by bolts.

[0013] The beneficial effects of the utility model are:

[0014] The utility model sets the structure of the unit gas box, sets the busbar bushing on the top cover plate, and the busbar bushing is 250mm away from the right cover plate, and the isolating switch is installed close to the left cover plate in the box body, so that the upper pile head on the top of the isolating switch can directly correspond to the busbar bushing, thereby reducing the copper busbar connection between the isolating switch and the busbar bushing. This setting can improve the efficiency of installation by avoiding the occurrence of poor contact due to the copper busbar connection. The utility model breaks the rigid design of the installation position of the existing isolating switch 7 and optimizes the installation structure, so as to achieve the effect of more convenient installation.

[0015] The utility model can be fixedly connected with the box body by respectively arranging a front mounting plate and a rear mounting plate on the side of the isolating switch, specifically, the front mounting plate and the front cover plate are fixed by a plurality of welding nails, a rear reinforcing rib is arranged between the rear mounting plate and the rear cover plate for transition, and the installation stability of the entire isolating switch is improved by the arrangement of the rear reinforcing rib, and a welding block is also arranged between the rear reinforcing rib and the rear cover plate for full welding, so that the structure is more firm.

[0016] The utility model arranges a casing pressing plate on the top cover plate, and the casing pressing plate is arranged as an L-shaped structure, so that a certain gap is left between the casing pressing plate and the top cover plate, and a mounting hole is opened on the casing pressing plate, so that the busbar casing is firmly mounted on the casing pressing plate, thereby improving the installation firmness of the busbar casing. The setting of the gap is for better adapting to the structure of the busbar casing, and also plays a certain protective reinforcement effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the present invention. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of the PT unit gas box of the environmentally friendly gas insulation cabinet provided by the utility model;

[0019] Figure 2 for Figure 1 Middle AA section view;

[0020] Figure 3 for Figure 2 Middle BB section view;

[0021] Figure 4 A schematic diagram of the partial structure of the PT unit gas box of the environmentally friendly gas insulation cabinet provided by the utility model Figure 1 ;

[0022] Figure 5 A schematic diagram of the partial structure of the PT unit gas box of the environmentally friendly gas insulation cabinet provided by the utility model Figure 2 ;

[0023] icon:

[0024] 1-front cover plate, 2-left cover plate, 3-right cover plate, 4-rear cover plate, 5-top cover plate, 6-busbar bushing, 7-isolating switch, 8-front mounting plate, 9-rear mounting plate, 10-welding nails, 11-rear reinforcement ribs, 12-three-phase current transformer, 13-lower branch copper rod, 14-operating mechanism, 15-bushing pressure plate, 16-welding block, 17-inlet and outlet bushings. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described below in conjunction with the accompanying drawings of the present invention.

[0026] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present utility model, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Please see Figures 1 to 5 The utility model provides an environmentally friendly gas insulated cabinet PT unit gas box. In the prior art, the bus bushing 6 and the disconnector 7 need to be connected by a copper busbar, and the connection process is time-consuming, labor-intensive and material-intensive. In order to solve the above technical problems, the utility model optimizes the design of the insulating cabinet PT unit gas box to simplify the installation of the bus bushing 6 and the disconnector 7, thereby improving work efficiency and safety.

[0028] The environmentally friendly gas insulated cabinet PT unit gas box includes a front cover plate 1, a left cover plate 2, a rear cover plate 4, a right cover plate 3 and a top cover plate 5. As shown in the figure, the front cover plate 1, the left cover plate 2, the rear cover plate 4 and the right cover plate 3 are connected at the ends. During the connection process, welding is used to connect them, and the top cover plate 5 is welded to the top. In addition, a bottom plate is also provided, which is also welded to the bottom to form a sealed gas box structure.

[0029] The busbar bushing 6 is installed on the top cover plate 5. There are currently three bushings, which are arranged side by side. The installation position of the busbar bushing 6 is 250 mm away from the right cover plate 3. The setting of this distance is to meet the requirements of the State Grid's standardized grid-connected and cabinet-connected requirements. In order to facilitate better installation of the busbar bushing 6, a bushing pressing plate 15 is also provided on the top cover plate 5. The bushing pressing plate 15 is L-shaped and faces the top cover plate 5, so that a gap is left between the top of the bushing pressing plate 15 and the top cover plate 5, and three mounting holes are opened on the bushing pressing plate 15 for respectively installing the busbar bushing 6. The gap is retained to better fit the pipe structure of the busbar bushing 6. When the busbar bushing 6 is installed, the bushing pressing plate 15 is fixedly connected to the top cover plate 5 by bolts.

[0030] An isolating switch 7 is installed in the box. The isolating switch 7 and the busbar bushing 6 provided by the utility model belong to the prior art and can be purchased on the market. The isolating switch 7 is installed near the left cover plate 2, so that the isolating switch 7 is not centered inside the box. After this arrangement, the upper pile head on the top of the isolating switch 7 can be set corresponding to the top of the busbar bushing 6, and then the upper pile head on the top of the isolating switch 7 can be directly connected to the top of the busbar bushing 6 through fasteners, thereby avoiding copper bus connection. The fastener is a bolt. Through the above setting, the connection between the busbar bushing 6 and the isolating switch 7 is simpler and the connection efficiency is improved. In the prior art, the isolating switch 7 is usually set in the center, so that there is a certain distance between the upper pile head on the top of the isolating switch 7 and the busbar bushing 6, and then a copper busbar needs to be set. The utility model breaks the solidified design of the installation position of the existing isolating switch 7 and optimizes the installation structure, so that it can achieve a more convenient installation effect, and at the same time does not affect the normal installation and operation of other equipment.

[0031] In order to better fix the isolating switch 7, a front mounting plate 8 and a rear mounting plate 9 are respectively arranged on both sides of the isolating switch 7, the front mounting plate 8 is connected to the front cover plate 1, and the rear mounting plate 9 is connected to the rear cover plate 4. The front mounting plate 8 and the front cover plate 1 are connected by welding nails 10, specifically, a hole is first opened on the front cover plate 1, and then the front mounting plate 8 is fixed by welding nails 10 (bolts), and the rear mounting plate 9 and the rear cover plate 4 are connected by setting a rear reinforcing rib 11. The setting of the rear reinforcing rib 11 plays a connecting role. Similarly, a plurality of welding blocks 16 are also arranged on the rear reinforcing rib 11, so that the rear reinforcing rib 11 can be fixedly connected to the rear cover plate 4. As shown in the figure, the cross-section of the rear reinforcing rib 11 is in the shape of an inverted groove, and the welding block 16 is arranged at the notch.

[0032] In order to make the installation structure of the device more compact and to have more applicable places, the front cover plate 1 includes a straight panel and an inverted L-shaped panel, the isolating switch 7 is correspondingly installed on the inner wall of the straight panel, and the outer wall of the straight panel is installed with an operating mechanism 14 for operating the isolating switch 7, and a three-phase current transformer 12 is installed on the inverted L-shaped panel. A lower branch copper rod 13 is also connected to the bottom of the isolating switch 7, and the lower branch copper rod 13 is connected to the three-phase current transformer 12 through an inlet and outlet bushing 17. The lower branch copper rod 13, the three-phase current transformer 12 and the inlet and outlet bushing 17 mentioned above are all products that can be directly purchased on the market. The front cover plate 1 structure is arranged to have an inward folding structure for easy installation, and the internal structure is more compact after installation and does not affect the connection with other equipment at the same time, so as to achieve the purpose of improving the utilization of the internal space structure.

[0033] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An environmentally friendly gas-insulated cabinet PT unit gas box, characterized in that: The invention comprises a front cover plate (1), a rear cover plate (4), a left cover plate (2), a right cover plate (3) and a top cover plate (5), wherein the front cover plate (1), the left cover plate (2), the rear cover plate (4) and the right cover plate (3) are connected end to end, and the top cover plate (5) is arranged on the top to form a box body; A busbar bushing (6) is arranged on the top cover plate (5), and the installation position of the busbar bushing (6) is 250 mm away from the right cover plate (3). An isolating switch (7) is installed in the box body, and the two sides of the isolating switch (7) are respectively connected to the front cover plate (1) and the rear cover plate (4). The isolating switch (7) is installed close to the left cover plate (2). The upper pile head on the top of the isolating switch (7) is arranged corresponding to the busbar bushing (6), and the upper pile head on the top of the isolating switch (7) is directly connected to the busbar bushing (6) through a fastener.

2. The environmentally friendly gas insulated cabinet PT unit gas box according to claim 1 is characterized in that: The two sides of the isolating switch (7) are respectively a front mounting plate (8) and a rear mounting plate (9); the front mounting plate (8) is connected to the front cover plate (1), and the rear mounting plate (9) is connected to the rear cover plate (4).

3. The environmentally friendly gas insulated cabinet PT unit gas box according to claim 2 is characterized in that: The front mounting plate (8) is tightly attached to the inner side of the front cover plate (1), and the front mounting plate (8) is fixedly connected to the front cover plate (1) by welding nails (10).

4. The environmentally friendly gas insulated cabinet PT unit gas box according to claim 2, characterized in that: A rear reinforcing rib (11) is provided between the rear mounting plate (9) and the rear cover plate (4), and a welding block (16) is also provided on the side of the rear reinforcing rib (11) facing the rear cover plate (4) so ​​as to connect the rear reinforcing rib (11) to the rear cover plate (4).

5. The environmentally friendly gas insulated cabinet PT unit gas box according to claim 1, characterized in that: The front cover plate (1) comprises a straight panel and an inverted L-shaped panel, the inverted L-shaped panel is arranged at the bottom of the straight panel, and a three-phase integrated current transformer (12) is installed on the inverted L-shaped panel; The isolating switch (7) is connected to a lower branch copper rod (13), and the lower branch copper rod (13) is connected to the three-phase integrated current transformer (12) via an inlet and outlet bushing (17).

6. The environmentally friendly gas insulated cabinet PT unit gas box according to claim 1, characterized in that: An operating mechanism (14) for operating the isolating switch (7) is also mounted on the outer wall of the front cover plate (1).

7. The environmentally friendly gas insulated cabinet PT unit gas box according to any one of claims 1 to 6, characterized in that: The top cover plate (5) is also provided with a sleeve pressing plate (15), the sleeve pressing plate (15) is L-shaped, a mounting hole is opened on the sleeve pressing plate (15), the busbar sleeve (6) is installed in the mounting hole, and the sleeve pressing plate (15) and the top cover plate (5) are fixedly connected by bolts.

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