CN112103821A - Disconnect-type compact buries formula box-type substation - Google Patents

Abstract

The invention relates to the technical field of power supply and distribution of power systems, and discloses a separate compact buried box-type substation, comprising an underground box installed under the ground, a ventilation column is installed on the top of the ground, and the upper surface of the ground is A cooling box and a low-voltage cabinet are installed, one side of the underground box is provided with an outlet hole, a waterproof chuck is installed in the emergent hole, and an outlet pipe is arranged in the waterproof chuck, and the other end of the outlet pipe is connected with the low-voltage cabinet, and the underground A bridge frame is fixedly connected to the inner wall of one side of the box, a transformer is installed in the underground box, an air inlet hole is opened on one side of the underground box, and an air inlet pipe is arranged in the air inlet hole. The invention can split the box-type substation into three independent modules: the underground box, the cooling box and the low-voltage cabinet, so as to realize free and flexible combination and installation, no longer limited by the site, and there is no need to configure the high-voltage cabinet on site, and only the ground part is left. Low-voltage cabinets and ventilation columns with a very small footprint reduce the footprint.

Description

A separate compact buried box-type substation

technical field

The invention relates to the technical field of power supply and distribution of power systems, in particular to a separate compact buried box-type substation.

Background technique

With the acceleration of urban and rural modernization, the construction of the city has entered the stage of urban beauty aimed at improving the appearance of the streetscape. Traditional box-type substations cover a large area. In some crowded streets, pedestrian streets and other scenarios, traditional box-type substations cannot be used to solve the problem of power expansion and bring serious inconvenience to the travel of nearby residents. The separate compact underground box-type substation is a new type of power complete equipment developed to meet the above scenarios.

Box-type substations usually include transformers and power distribution units such as high and low-voltage cabinets that match the transformers. The current solution to the above problems is to use an integrated buried box-type substation, but this method covers a larger area than traditional substations. The box-type substation is smaller, but because the above-ground part and the underground part of the integrated buried box-type substation need to be closely connected to form a whole, it may not be possible to arrange it due to the constraints of the surrounding environmental conditions. compact underground box-type substation.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a separate compact buried box-type substation, mainly to solve the problem that the above-ground part and the underground part of the integrated buried-type box-type substation need to be closely connected into a whole, and are affected by the surrounding environment. Conditional constraints may make it impossible to arrange the problem.

(2) Technical solutions

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

A separable compact underground box-type substation includes an underground box installed under the ground, a ventilation column is installed on the top of the ground, a heat dissipation box and a low-voltage cabinet are installed on the upper surface of the ground, and one side of the underground box is opened There are outlet holes, and a waterproof collet is installed in the appearance hole. The waterproof collet is provided with an outlet pipe, and the other end of the outlet pipe is connected with the low-voltage cabinet. The inner wall of one side of the underground box is fixedly connected with a bridge, and a transformer is installed in the underground box. One side of the underground box is provided with an air inlet hole, an air inlet pipe is arranged in the air inlet hole, the other end of the air inlet pipe is connected with the ventilation column, and the other side of the underground box is provided with an air outlet hole, and the air outlet hole is provided with an air outlet. There is a suction pipe, a fan is fixedly connected to the bottom inner wall of the heat dissipation box, one end of the air inlet of the fan is connected with the suction pipe, one side of the heat dissipation box is provided with a ventilation hole, and a ventilation net is fixedly connected in the ventilation hole. The ventilation network is located on one side of the air outlet of the fan, the outer wall of one side of the heat dissipation box is provided with a temperature display, the bottom of the ground is provided with a maintenance channel, the inner wall of the maintenance channel is provided with a well, the top of the well is provided with a well cover, and the inner wall of one side of the well cover is provided. Fixed connection with live indicator.

Further, a climbing ladder is fixedly connected to one side of the inner wall of the underground box, and a plurality of protective frames are fixedly connected to one side of the climbing ladder.

On the basis of the aforementioned solution, a metering transformer is fixedly connected to the inner wall of one side of the low-voltage cabinet, a meter is fixedly connected to the inner wall of one side of the low-voltage cabinet, a cable room is arranged in the low-voltage cabinet, and the cable room is connected to the basement box through cables .

As a further solution of the present invention, a frame circuit breaker is installed in the low-voltage cabinet, a control panel and a display are fixedly connected to one inner wall of the low-voltage cabinet, and the control panel and the display are electrically connected.

Further, the bottom inner wall of the underground box is provided with a water storage tank, the top of the water storage tank is provided with a baffle plate, the top of the baffle plate is provided with a plurality of water leakage holes, and the water storage tank is provided with a submersible pump, and one end of the water outlet of the submersible pump is provided. A water outlet pipe is fixed, the water outlet pipe passes through the underground box, and a lamp is fixedly connected to the top inner wall of the underground box.

On the basis of the foregoing solution, a camera is also fixedly connected to the top inner wall of the underground box.

As a further solution of the present invention, two support columns are fixedly connected to the top outer walls of the heat dissipation box and the low-voltage cabinet, respectively, and the top of the support columns is fixedly connected to a rainproof shed.

(3) Beneficial effects

Compared with the prior art, the present invention provides a separate compact buried box-type substation, which has the following beneficial effects:

1. The box-type substation can be installed freely and flexibly by dividing the box-type substation into three independent modules: the underground box, the cooling box and the low-voltage cabinet. On the ground, only low-voltage cabinets and ventilation columns are left with a very small footprint, which reduces the footprint.

2. The box-type substation can be connected with the ventilation column and the fan inside the low-voltage cabinet by designing the suction pipe and the outlet pipe on both sides of the underground box, creating good operating conditions for the operation of the transformer in the underground box. Improve the reliability of product operation.

3. In this box-type substation, by installing a live indicator on the manhole cover, the staff can know the high-voltage live state of the transformer before entering the underground box, so as to ensure the safety of operation and maintenance personnel.

4. In this box-type substation, without opening the manhole cover, the staff can intuitively understand the temperature in the underground box, the temperature of the low-voltage pile head of the transformer, the water level, the high-voltage live condition and other signals directly from the display on the low-voltage cabinet.

5. The box-type substation can monitor the transformer in the underground box in real time by installing the camera in the underground box, so as to know the operation status of the transformer in time.

Description of drawings

FIG. 1 is a schematic front view structure diagram of Embodiment 1 of a separate compact buried box-type substation proposed by the present invention;

FIG. 2 is a top-view structural schematic diagram without a manhole cover of Embodiment 1 of a separate compact buried box-type substation proposed by the present invention;

FIG. 3 is a schematic view of the rear view structure of Embodiment 1 of a separate compact buried box-type substation proposed by the present invention;

Fig. 4 is a front sectional structural schematic diagram of Embodiment 1 of a separate compact buried box-type substation proposed by the present invention;

5 is a schematic diagram of a rear cross-sectional structure of Embodiment 1 of a separate compact buried box-type substation proposed by the present invention;

6 is a schematic cross-sectional structural diagram of Embodiment 2 of a separate compact buried box-type substation proposed by the present invention.

In the picture: 1. Underground box; 2. Manhole cover; 3. Ventilation column; 4. Ground; 5. Cooling box; 6. Low-voltage cabinet; Pipe; 10, air intake pipe; 11, temperature display; 12, transformer; 13, baffle; 14, protective frame; 15, ladder; 16, submersible pump; 17, outlet pipe; 18, cable room; 19, control panel; 20. Display; 21. Frame circuit breaker; 22. Meter; 23. Metering transformer; 24. Bridge; 25. Fan; 26. Lamp; 27. Waterproof chuck; 28. Camera; 29. Support column; 30. Rain shelter.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

1-5, a separate compact underground box-type substation includes an underground box 1 installed under the ground 4, an underground chamber is dug below the ground 4, and then the underground box 1 is placed in the underground cavity Indoors, the upper surface of the ground 4 is installed with a heat dissipation box 5 and a low-voltage cabinet 6, one side of the underground box 1 is provided with an outlet hole, and a waterproof clip 27 is installed in the opening hole, and the waterproof clip 27 improves the sealing performance of the underground box 1 , the waterproof collet 27 is sealed and plugged with the outlet pipe 17, the other end of the outlet pipe 17 is connected with the low-voltage cabinet 6, the inner wall of one side of the underground box 1 is fixed with a bridge 24 by bolts, and the transformer 12 is installed in the underground box 1. A ventilation column 3 is installed on the top of the ground 4, an air intake hole is opened on one side of the underground box 1, and an air intake pipe 10 is sealed and plugged in the air intake hole. It is sucked into the ventilation column 3, and then enters the underground box 1 from the air intake pipe 10, and the other side of the underground box 1 is provided with an air outlet, and the air outlet is sealed and plugged with an air suction pipe 9, and then the air flows from the underground box. 1 into the suction pipe 9, the bottom inner wall of the heat dissipation box 5 is fixed with a fan 25 by bolts, one end of the air inlet of the fan 25 is communicated with the suction pipe 9, one side of the heat dissipation box 5 is provided with a ventilation hole, and the ventilation hole passes through The ventilation net 8 is fixed with the bolt, and the ventilation net 8 is located on one side of the air outlet of the fan 25, and then the fan 25 is discharged from the air outlet of the fan 25, and is returned to the atmosphere from the ventilation net 8, thereby completing the heat dissipation of the transformer 12, and the cooling box 5 A temperature display 11 is provided on the outer wall of one side, a maintenance channel is provided below the ground 4, and a well 7 for preventing soil from falling is fixedly installed on the inner wall of the maintenance channel. The top of the well 7 is provided with a manhole cover 2. The electrification indicator 701 is fixed by bolts, and the electrification indicator 701 is installed on the manhole cover 2, so that the staff can know the high-voltage electrification state of the transformer 12 before entering the underground box 1, so as to ensure the maintenance safety of the operation and maintenance personnel.

A ladder 15 is fixed on one side of the inner wall of the underground box 1 by bolts. The design of the ladder 15 is convenient for staff to descend into the underground box 1. One side of the ladder 15 is fixed with a plurality of protective frames 14 by bolts, and the inner wall of the low-voltage cabinet 6 passes through The measuring transformer 23 is fixed with bolts, and the model of the measuring transformer 23 is AKH-0.66G. The inner wall of one side of the low-voltage cabinet 6 is fixed with the measuring device 22 by bolts. The low-voltage cabinet 6 is provided with a cable room 18, and the cable room 18 passes through the cable. Connected with the basement box 1, a frame circuit breaker 21 is installed in the low-voltage cabinet 6, the model of the frame circuit breaker 21 is 1PiMCBS3-FC32, and the control panel 19 and the display 20 are fixed on one side of the inner wall of the low-voltage cabinet 6 by bolts. The model is 940NW, the control panel 19 and the display 20 are electrically connected, the bottom inner wall of the basement box 1 is provided with a water tank, the top of the water tank is provided with a baffle 13, and the top of the baffle 13 is provided with a plurality of water leakage holes, and A submersible pump 16 is arranged in the sump tank, and one end of the water outlet of the submersible pump 16 is fixed with a water outlet pipe. Under the action of the submersible pump 16, the water in the sump tank is discharged from the underground tank 1 from the water outlet pipe, and the water outlet pipe passes through the underground tank. 1. Lamps 26 for lighting are fixed on the top inner wall of the basement box 1 by bolts.

The working principle of this embodiment: when using, first, dig an underground chamber under the ground 4, then place the underground box 1 in the underground chamber, and then install the heat dissipation box 5 and the low-voltage cabinet 6 on the ground 4, respectively, Therefore, the box-type substation is divided into three independent modules, and then the cable is passed through the outlet pipe 17, and the line between the underground box 1 and the low-voltage cabinet 6 is connected through the cable, and then the fan 25 is started. Under the action, the outside air is sucked into the ventilation column 3, and then enters the underground box 1 from the air intake pipe 10, and the transformer 12 in the underground box 1 is dissipated and cooled, and then the air enters the suction pipe from the underground box 1 9 , then enter the fan 25, then discharge the fan 25 from the air outlet of the fan 25, and finally return to the atmosphere from the ventilation network 8, so as to complete the heat dissipation of the transformer 12. When it is necessary to go down to the underground box 1 for maintenance, the staff You can first learn the high-voltage live state of the transformer 12 from the live indicator 701, and then go down to the underground box 1 to repair the transformer 12, and the staff can directly understand the inside of the underground box 1 directly from the display 20 on the low-voltage cabinet 6. Temperature, low-voltage pile head temperature of transformer 12, water level, high-voltage electrification and other signals, then start submersible pump 16, under the action of submersible pump 16, the water in the water tank is discharged from the water outlet pipe to the underground tank 1.

Example 2

6, a separate compact buried box-type substation, including the top inner wall of the underground box 1 is also fixed with a camera 28 by bolts, the camera 28 can monitor the operating status of the transformer 12 in real time, the cooling box 5 and the low-voltage cabinet. The top outer wall of 6 is respectively fixed with two support columns 29 by bolts, and the top of the support columns 29 is fixed with a rain shelter 30 by bolts.

The working principle of this embodiment: when in use, the staff can monitor the running state of the transformer 12 in real time through the camera 28 , and the rainproof shed 30 can prevent rainwater from falling on the cooling box 5 and the low-voltage cabinet 6 for protection.

The electrical components appearing in this article are all connected with the external main controller and 220V mains, and the main controller can be a conventional known device controlled by a computer or the like.

In the description in this text, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. Ground connection; it can be a mechanical connection or an electrical connection, it can be directly connected, or it can be indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the description herein, it should be noted that relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or that there is any such actual relationship or sequence between operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A separated compact buried box-type substation comprises an underground box (1) arranged below the ground (4), and is characterized in that a ventilation column (3) is arranged at the top of the ground (4), a heat dissipation box (5) and a low-voltage cabinet (6) are arranged on the upper surface of the ground (4), a wire outlet hole is formed in one side of the underground box (1), a waterproof chuck (27) is arranged in the wire outlet hole, a wire outlet pipe (17) is arranged in the waterproof chuck (27), the other end of the wire outlet pipe (17) is communicated with the low-voltage cabinet (6), a bridge (24) is fixedly connected with the inner wall of one side of the underground box (1), a transformer (12) is arranged in the underground box (1), a gas inlet pipe (10) is arranged in one side of the underground box (1), the other end of the gas inlet pipe (10) is communicated with the ventilation column (3), and a gas outlet hole is formed in the other side of the underground box, be equipped with breathing pipe (9) in the venthole, the bottom inner wall fixedly connected with fan (25) of heat dissipation case (5), the one end and breathing pipe (9) of fan (25) air intake are linked together, the air vent has been seted up to one side of heat dissipation case (5), fixedly connected with ventilation net (8) in the air vent, ventilation net (8) are located one side of fan (25) air outlet, one side outer wall of heat dissipation case (5) is equipped with temperature monitor (11), the below of ground (4) is equipped with access way, access way's circumference inner wall is equipped with well (7), the top of well (7) is equipped with well lid (2), one side inner wall fixedly connected with of well lid (2) is electrified to indicate appearance (701).

2. The split compact buried box substation of claim 1, characterized in that: one side inner wall fixedly connected with cat ladder (15) of underground box (1), one side fixedly connected with a plurality of protection frame (14) of cat ladder (15).

3. The split compact buried box substation of claim 1, characterized in that: the measuring instrument transformer (23) is fixedly connected to the inner wall of one side of the low-voltage cabinet (6), the measuring instrument (22) is fixedly connected to the inner wall of one side of the low-voltage cabinet (6), a cable chamber (18) is arranged in the low-voltage cabinet (6), and the cable chamber (18) is communicated with the underground box (1) through a cable.

4. The split compact buried box substation of claim 1, characterized in that: install frame circuit breaker (21) in low-voltage cabinet (6), one side inner wall fixedly connected with control panel (19) and display (20) of low-voltage cabinet (6), electric connection between control panel (19) and display (20).

5. The split compact buried box substation of claim 1, characterized in that: the water accumulation groove has been seted up to the bottom inner wall of underground case (1), and the top of water accumulation groove is equipped with baffle (13), and a plurality of holes that leak have been seted up at the top of baffle (13), and is equipped with immersible pump (16) in the water accumulation groove, and the one end of immersible pump (16) delivery port is fixed with the outlet pipe, and the outlet pipe passes underground case (1), the top inner wall fixedly connected with lamps and lanterns (26) of underground case (1).

6. The split compact buried box substation of claim 1, characterized in that: the top inner wall of the underground box (1) is also fixedly connected with a camera (28).

7. The split compact buried box substation of claim 1, characterized in that: the heat dissipation box is characterized in that the outer walls of the tops of the heat dissipation box (5) and the low-voltage cabinet (6) are respectively fixedly connected with two supporting columns (29), and the tops of the supporting columns (29) are fixedly connected with a rainproof shed (30).

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