Outdoor buried prefabricated substation

Abstract

The utility model discloses an outdoor buried prefabricated substation, which comprises a prefabricated base cabin buried underground, a transformer mounted in the prefabricated base cabin, a base cabin cover plate covering the top of the prefabricated base cabin and a switch box mounted on the prefabricated base cabin, and a water level monitoring unit and a drainage unit are arranged at the bottom in the prefabricated base cabin. Drainage grooves are connected to the two sides of the top of the base cabin cover plate. The effects of improving the operation safety of the transformer substation, reducing the occupied area and interfering with the external environment are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer substations, in particular to an outdoor underground prefabricated transformer substation. Background Art

[0002] Prefabricated substations are widely used in the fields of renewable energy power generation, power generation and distribution in urban commercial and civil buildings. Currently, the most commonly used prefabricated substations are mostly placed on the same floor as the transformer and switchgear, which occupies a large area. In addition, the transformer is prone to fire when overloaded, and the fire is easy to spread to the surrounding areas. Therefore, flammable items cannot be placed within a certain range around it. In addition, since the transformer has a coil that is a high-voltage part, it will generate certain electromagnetic interference and radiation to the surrounding area. Summary of the Invention

[0003] The technical problem to be solved by the utility model is that the ground substation occupies a large area and has potential safety hazards during operation.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an outdoor underground prefabricated substation, including a prefabricated base cabin buried underground, a transformer installed in the prefabricated base cabin, a base cabin cover plate covered on the top of the prefabricated base cabin and a switch box installed on the prefabricated base cabin, a water level monitoring unit and a drainage unit are arranged at the bottom of the prefabricated base cabin, and drainage grooves are connected on both sides of the top of the base cabin cover plate.

[0005] Preferably, an installation step is provided at the bottom of the prefabricated cabin, the bottom of the transformer is connected to the installation step by bolts, and the water level monitoring unit and the drainage unit are both arranged on one side of the installation step.

[0006] Preferably, the water level monitoring unit includes a water level sensor fixed on the side wall of the installation step, and the drainage unit includes a water diversion pipe fixed on the side wall of the installation step and a drainage pump connected to the water diversion pipe, and the output end of the drainage pump is connected to the drainage trough through a pipeline.

[0007] Preferably, a check valve is installed on the pipe at the output end of the drainage pump, and the drainage pump is installed on the inner wall of the prefabricated base cabin, and the pipes are fixed on the inner wall of the prefabricated base cabin.

[0008] Preferably, the water diversion pipe is located in the middle of the side wall of the installation step, and branch pipes are equidistantly connected to the water diversion pipe, and the branch pipes are arranged vertically downward.

[0009] Preferably, the base cabin cover includes a base plate at the bottom and a grille plate installed on the base plate, the grille plate is provided with an opening at the bottom and a water flow channel connected to the drainage trough is formed through the opening, and the two ends of the base plate are located on both sides of the prefabricated base cabin.

[0010] 1. The utility model provides an outdoor underground prefabricated substation, in which the transformer is arranged underground through a prefabricated base cabin, and a base cabin cover is installed on the top of the prefabricated base cabin, so that the transformer can operate in a safe environment. Even if the transformer catches fire during operation, it is not easy to spread. The fire in the underground prefabricated base cabin is easy to control due to the limited ventilation.

[0011] 2. The substation is arranged in the form of an underground transformer, which is installed and fixed with bottom bolts. It occupies a small area and is easy to replace the transformer.

[0012] 3. The transformer has little electromagnetic interference and radiation to the surrounding area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a structural front view of an embodiment of the present utility model.

[0015] Figure 2 It is a structural side view of an embodiment of the present utility model.

[0016] In the figure: 1. Transformer; 2. Prefabricated foundation cabin; 3. Foundation cabin cover; 4. Foundation channel steel; 5. Switch box; 6. Cable clamp cabin; 7. Drain trough; 8. Water level sensor; 9. Water diversion pipe; 10. Drain pump. DETAILED DESCRIPTION

[0017] like Figure 1 and Figure 2 As shown, the utility model proposes an outdoor underground prefabricated substation, including a prefabricated base cabin 2 buried underground, a transformer 1 installed in the prefabricated base cabin 2, a base cabin cover 3 covering the top of the prefabricated base cabin 2 and a switch box 5 installed on the prefabricated base cabin 2. A water level monitoring unit and a drainage unit are provided at the bottom of the prefabricated base cabin 2, and drainage grooves 7 are connected to both sides of the top of the base cabin cover 3.

[0018] The transformer 1 is placed in the prefabricated base cabin 2 in a hoisting manner and fixed in the prefabricated base cabin 2 by bolts. Then the base cabin cover 3 is installed. A foundation channel steel 4 is provided on one side of the base cabin cover 3. The foundation channel steel 4 is used to support the switch box 5 installed on the prefabricated base cabin 2. A cable clamp compartment 6 is provided at the bottom of the switch box 5. The cable clamp compartment 6 is used to connect the lines of the transformer 1 and the external equipment on the ground; the base cabin cover 3 is flush with the ground, and the drainage trough 7 is used to drain the fallen water on the base cabin cover 3 to avoid too much water accumulation on the base cabin cover 3.

[0019] like Figure 1 and Figure 2As shown, to facilitate the installation of transformer 1, a mounting step is provided at the bottom of the prefabricated base cabin 2. The bottom of transformer 1 is bolted to the step. The water level monitoring unit and drainage unit are both arranged on one side of the mounting step. Transformer 1 is bolted to the mounting step, which elevates transformer 1 and ensures safe and stable operation.

[0020] like Figure 1 and Figure 2 As shown. The water level monitoring unit includes a water level sensor 8 fixed to the side wall of the installation step. The drainage unit includes a water diversion pipe 9 fixed to the side wall of the installation step and a drainage pump 10 connected to the water diversion pipe 9. The output end of the drainage pump 10 is connected to the drainage trough 7 via a pipe. When water enters the prefabricated foundation cabin 2, the water level in the gap between the installation step and the inner wall of the prefabricated foundation cabin 2 rises. After the water level sensor 8 detects the liquid level, it sends a feedback signal to the control unit of the drainage pump 10, which starts the drainage pump 10 and drains the water from the prefabricated foundation cabin 2 through the water diversion pipe 9.

[0021] As a preferred embodiment of the present invention, a check valve is installed on the pipe at the output end of the drainage pump 10, and the drainage pump 10 is installed on the inner wall of the prefabricated base cabin 2, and the pipes are fixed to the inner wall of the prefabricated base cabin 2; the pipes are installed along the inner wall of the prefabricated base cabin 2 to ensure the stability of the installation of the pipes and the drainage pump 10, and the check valve is provided to prevent water from flowing back into the drainage trough 7.

[0022] like Figure 1 The water diversion pipe 9 is located in the middle of the side wall of the installation step, and branch pipes are evenly connected to the water diversion pipe 9, and the branch pipes are arranged vertically downward; they are used to improve the drainage efficiency of the water diversion pipe 9 and ensure the uniformity of drainage.

[0023] As a preferred embodiment of the present invention, the sump cover 3 comprises a base plate and a grating mounted on the base plate. The grating is provided with openings at the bottom of the base plate, forming a water channel connected to the drainage trough 7 through the openings. The base plate is located at either end of the prefabricated sump 2. The grating not only enhances the strength of the sump cover 3 but also reduces its weight. Furthermore, the sump cover 3 is wider than the prefabricated sump 2, ensuring a tight seal. The water channel formed by the openings transports water from the sump cover 3 to the drainage trough 7.

Claims

1. An outdoor underground prefabricated substation, characterized by: The invention comprises a prefabricated base cabin (2) buried underground, a transformer (1) installed in the prefabricated base cabin (2), a base cabin cover plate (3) covering the top of the prefabricated base cabin (2), and a switch box (5) installed on the prefabricated base cabin (2). A water level monitoring unit and a drainage unit are provided at the bottom of the prefabricated base cabin (2), and drainage grooves (7) are connected to both sides of the top of the base cabin cover plate (3).

2. The outdoor underground prefabricated substation according to claim 1, characterized in that: The bottom of the prefabricated base cabin (2) is provided with an installation step, the bottom of the transformer (1) is connected to the installation step via bolts, and the water level monitoring unit and the drainage unit are both arranged on one side of the installation step.

3. The outdoor underground prefabricated substation according to claim 2, characterized in that: The water level monitoring unit comprises a water level sensor (8) fixed to the side wall of the installation step, and the drainage unit comprises a water diversion pipe (9) fixed to the side wall of the installation step and a drainage pump (10) connected to the water diversion pipe (9), wherein the output end of the drainage pump (10) is connected to the drainage trough (7) via a pipeline.

4. The outdoor underground prefabricated substation according to claim 3, characterized in that: A check valve is installed on the pipe at the output end of the drainage pump (10), and the drainage pump (10) is installed on the inner wall of the prefabricated base cabin (2), and the pipes are fixed on the inner wall of the prefabricated base cabin (2).

5. The outdoor underground prefabricated substation according to claim 3, characterized in that: The water diversion pipe (9) is located in the middle of the side wall of the installation step, and branch pipes are equidistantly connected to the water diversion pipe (9), and the branch pipes are arranged vertically downward.

6. The outdoor underground prefabricated substation according to claim 1, characterized in that: The base cabin cover (3) comprises a base plate at the bottom and a grille plate mounted on the base plate. The grille plate is provided with an opening at the bottom and a water flow channel communicating with the drainage trough (7) is formed through the opening. The two ends of the base plate are located on both sides of the prefabricated base cabin (2).

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