CN106451172A - Underground transformer substation for outdoor power supply system - Google Patents

Abstract

The invention relates to an underground transformer substation for an outdoor power supply system. The underground transformer substation comprises a box which is arranged underground, wherein a protecting cover plate is arranged above the box. The underground transformer substation is characterized in that a middle interlayer is arranged in a box wall of the box; a semiconductor refrigeration chip is arranged in the middle interlayer, and a refrigerant fluid is filled in the middle interlayer; a radiating fin is arranged on a side wall of the box; the interior of the radiating fin is communicated with the middle interlayer in the box wall; the semiconductor refrigeration chip is connected with a power supply through a first electromagnetic relay; and a temperature sensor is arranged in the box.

Description

An underground substation for outdoor power supply system

technical field

The invention belongs to the technical field of electric equipment, and in particular relates to an underground substation used in an outdoor power supply system.

Background technique

With the continuous development of economic construction, more and more outdoor substations have emerged to provide material conditions for economic construction more conveniently.

However, the construction of above-ground substations needs to occupy land area; therefore, buried substations have become an important aspect of outdoor substation construction; however, the buried substations in the prior art have the following technical problems:

First: Due to the relatively tight seal of the buried substation, the heat emitted by the transformer and other power equipment inside cannot be discharged in time; Second: The buried substation is prone to damp, which affects the normal operation of the power equipment inside; Third: The buried substation is affected by the earthquake, causing damage to the power equipment; fourth: it is easy to cause water accumulation; fifth: the transformer oil pillow in the buried substation explodes and the entire substation is paralyzed. This is the weak point of prior art.

Therefore, in view of the above-mentioned defects in the prior art, it is very necessary to provide and design an underground substation for an outdoor power supply system; to solve the above-mentioned technical problems.

Contents of the invention

The object of the present invention is to provide and design an underground substation for outdoor power supply system to solve the above-mentioned technical problems.

To achieve the above object, the present invention provides the following technical solutions:

An underground substation for an outdoor power supply system, which includes a box arranged below the ground, and a protective cover is arranged above the box; it is characterized in that:

The box wall of the box is provided with an intermediate interlayer, and the intermediate interlayer is provided with a semiconductor refrigeration chip and filled with refrigerant liquid. The side wall of the box is provided with a heat sink, and the inside of the heat sink is in the middle of the box wall. The interlayer is connected, the semiconductor refrigeration chip is connected to the power supply through the first electromagnetic relay, and a temperature sensor is also arranged in the box;

A drainage fan is also arranged in the box, and the air outlet of the drainage fan is connected to a dryer through a pipeline, and a moisture absorption layer and a heating layer are arranged in the dryer, and the moisture absorption layer is filled with calcium oxide powder. An electric heating wire is arranged in the heating layer, and both the drainage fan and the electric heating wire are connected to the power supply through the second electromagnetic relay, and a humidity sensor is also arranged in the box;

Water collecting plates are arranged around the outside of the box, and an arc-shaped water collecting cavity is arranged at the bottom of the box. , the water collecting tank is provided with a liquid level sensor, the water collecting tank is connected to a water pump through a water pipe, the water pump is connected to the ground through a water pipe, and the water pump is connected to a power supply through a third electromagnetic relay;

The box body is provided with a number of ventilation pipes connected to the ground, and the heights of the ventilation pipes above the ground are different from each other. The ventilation pipes are all provided with inverted V-shaped top covers, and the ends of the inverted V-shaped top covers are lower than ventilation pipe nozzles;

A microcontroller is also provided in the box, the input of the microcontroller is connected to the temperature sensor, the humidity sensor and the liquid level sensor, and the output of the microcontroller is connected to the first electromagnetic relay, the second electromagnetic relay, and the second electromagnetic relay. a relay and a third electromagnetic relay;

A buffer structure is also provided in the box, and the buffer structure includes a fixed plate and a support plate arranged in the bottom of the box, the fixed plate is provided with a limit hole, and the bottom of the support plate is provided with a limit rod. The limit rod described above matches the limit hole, the end of the limit rod is also connected with a compression spring, and the inner wall of the limit hole is also provided with a non-slip rubber layer;

A transformer is arranged in the box, an oil conservator is arranged on the transformer, and an overflow pipe is arranged on the oil conservator. The overflow pipe is connected with a metal drainage pipe, and the overflow pipe is also connected with an explosion-proof pipe, and the explosion-proof pipe is located in the metal drainage pipe. Inside, there is a transformer oil collection tank at the end of the metal drain tube.

Preferably, the microcontroller is a single-chip controller; it is easy to develop and low in cost.

Preferably, the thickness of the anti-slip rubber layer is 2-4mm.

Preferably, the thickness of the anti-slip rubber layer is 3mm.

The beneficial effect of the present invention is that, by adopting the technical scheme of the present invention, the technical problems of heat dissipation, moisture-proof, shock-proof, water-proof and transformer oil conservator explosion of buried substation in the prior art can be solved; in addition, the present invention The design principle is reliable, the structure is simple, and the utility model has very wide application prospects.

It can be seen that, compared with the prior art, the present invention has outstanding substantive features and remarkable progress, and the beneficial effects of its implementation are also obvious.

Description of drawings

Fig. 1 is a schematic structural diagram of an underground substation used in an outdoor power supply system provided by the present invention.

Figure 2 is the electrical connection diagram of the microcontroller.

FIG. 3 is a schematic diagram of the buffer structure in FIG. 1 .

Fig. 4 is a schematic structural view of the dryer in Fig. 1 .

Fig. 5 is a structural schematic diagram of a transformer oil conservator.

Among them, 1-box, 2-protective cover, 3-intermediate layer, 4-semiconductor cooling chip, 5-heat sink, 6-first electromagnetic relay, 7-power supply, 8-temperature sensor, 9-drainage fan , 10-dryer, 11-hygroscopic layer, 12-heating layer, 13-electric heating wire, 14-second electromagnetic relay, 15-humidity sensor, 16-water collecting plate, 17-curved water collecting chamber, 18 -Water collection tank, 19-liquid level sensor, 20-water pump, 21-third electromagnetic relay, 22-ventilation pipe, 23-inverted V-shaped top cover, 24-microcontroller, 25-buffer structure, 251-fixed plate, 30 -Transformer oil collection tank.

detailed description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

As shown in Figures 1 to 5, the present invention provides an underground substation for an outdoor power supply system, which includes a box body 1 arranged below the ground, and a protective cover plate 2 is arranged above the box body;

The box wall of the box body is provided with a middle interlayer 3, and the semiconductor refrigeration chip 4 is arranged in the said middle interlayer, and is filled with refrigerating liquid, and the side wall of the box body is provided with a cooling fin 5, and the inside of the cooling fin and the box wall The intermediate interlayer in the box is connected, the semiconductor refrigeration chip is connected to the power supply 7 through the first electromagnetic relay 6, and a temperature sensor 8 is also arranged in the box;

A drainage fan 9 is also arranged in the cabinet, and the air outlet of the drainage fan is connected to a dryer 10 through a pipeline, and a moisture absorption layer 11 and a heating layer 12 are arranged in the dryer, and the moisture absorption layer 11 is filled with calcium oxide powder, an electric heating wire 13 is arranged in the heating layer, and both the drainage fan and the electric heating wire are connected to a power supply through a second electromagnetic relay 14, and a humidity sensor 15 is also arranged in the box;

A water collecting plate 16 is arranged around the outside of the box, and an arc-shaped water collecting cavity 17 is arranged at the bottom of the box. The water collecting plate communicates with the arc-shaped water collecting cavity, and the bottom of the arc-shaped water collecting cavity is provided with A water collection tank 18, a liquid level sensor 19 is arranged in the water collection tank, and a water pump 20 is connected to the water collection tank through a water pipe, and the water pump is connected to the ground through a water pipe, and the water pump is connected to the ground through a third electromagnetic relay 21 to the power supply;

The box body is provided with several ventilation pipes 22 connected above the ground, and the heights of the ventilation pipes above the ground are different from each other. The ventilation pipes are all provided with an inverted V-shaped top cover 23, and the ends of the inverted V-shaped top cover lower than the vent pipe opening;

Also be provided with microcontroller 24 in the described casing, the input end of microcontroller is connected with described temperature sensor, humidity sensor and liquid level sensor, the output end of microcontroller is connected with described first electromagnetic relay, second. an electromagnetic relay and a third electromagnetic relay;

A buffer structure 25 is also arranged in the box, and the buffer structure includes a fixed plate 251 and a support plate 252 arranged in the bottom of the box body, a limiting hole 253 is arranged on the fixed plate, and a limited hole 253 is arranged on the bottom of the support plate. Position bar 254, described spacer bar matches with spacer hole, the end of spacer bar is also connected with stage clip 255, and the inwall of spacer hole is also provided with non-slip rubber layer 256;

A transformer is arranged in the box, an oil conservator 26 is arranged on the transformer, and an overflow pipe 27 is arranged on the oil conservator. The overflow pipe is connected with a metal drainage pipe 29, and the overflow pipe is also connected with an explosion-proof pipe 28. The explosion-proof pipe Located inside the metal drainage tube, the end of the metal drainage tube is provided with a transformer oil collection box 30 .

In this embodiment, the microcontroller is a single-chip controller; it is easy to develop and low in cost.

The thickness of the anti-skid rubber layer is 3mm.

In other embodiments, the thickness of the anti-slip rubber layer may be 2mm or 4mm.

The above disclosure is only a preferred embodiment of the present invention, but the present invention is not limited thereto, any non-creative changes that those skilled in the art can think of, and some improvements and modifications made without departing from the principle of the present invention , should fall within the protection scope of the present invention.

Claims (4)

1. An underground substation for an outdoor power supply system, which includes a box disposed below the ground, and a protective cover is provided above the box; it is characterized in that: The box wall of the box is provided with an intermediate interlayer, and the intermediate interlayer is provided with a semiconductor refrigeration chip and filled with refrigerant liquid. The side wall of the box is provided with a heat sink, and the inside of the heat sink is in the middle of the box wall. The interlayer is connected, the semiconductor refrigeration chip is connected to the power supply through the first electromagnetic relay, and a temperature sensor is also arranged in the box; A drainage fan is also arranged in the box, and the air outlet of the drainage fan is connected to a dryer through a pipeline, and a moisture absorption layer and a heating layer are arranged in the dryer, and the moisture absorption layer is filled with calcium oxide powder. An electric heating wire is arranged in the heating layer, and both the drainage fan and the electric heating wire are connected to the power supply through the second electromagnetic relay, and a humidity sensor is also arranged in the box; Water collecting plates are arranged around the outside of the box body, and an arc-shaped water collecting chamber is arranged at the bottom of the box body. , the water collecting tank is provided with a liquid level sensor, the water collecting tank is connected to a water pump through a water pipe, the water pump is connected to the ground through a water pipe, and the water pump is connected to a power supply through a third electromagnetic relay; The box body is provided with a number of ventilation pipes connected to the ground, and the heights of the ventilation pipes above the ground are different from each other. The ventilation pipes are all provided with inverted V-shaped top covers, and the ends of the inverted V-shaped top covers are lower than ventilation pipe nozzles; A microcontroller is also provided in the box, the input of the microcontroller is connected to the temperature sensor, the humidity sensor and the liquid level sensor, and the output of the microcontroller is connected to the first electromagnetic relay, the second electromagnetic relay, and the second electromagnetic relay. a relay and a third electromagnetic relay; A buffer structure is also provided in the box, and the buffer structure includes a fixed plate and a support plate arranged in the bottom of the box, the fixed plate is provided with a limit hole, and the bottom of the support plate is provided with a limit rod. The above-mentioned limit rod is matched with the limit hole, the end of the limit rod is also connected with a compression spring, and the inner wall of the limit hole is also provided with a non-slip rubber layer; A transformer is arranged in the box, an oil conservator is arranged on the transformer, and an overflow pipe is arranged on the oil conservator. The overflow pipe is connected with a metal drainage pipe, and the overflow pipe is also connected with an explosion-proof pipe, and the explosion-proof pipe is located in the metal drainage pipe. Inside, there is a transformer oil collection tank at the end of the metal drain tube. 2. The buried substation for outdoor power supply system according to claim 1, characterized in that: said microcontroller is a single-chip controller. 3. The buried substation for outdoor power supply system according to claim 2, characterized in that: the thickness of the anti-slip rubber layer is 2-4mm. 4. The buried substation for outdoor power supply system according to claim 3, characterized in that: the thickness of the anti-slip rubber layer is 3mm.