CN112103821A

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

Info

Publication number: CN112103821A
Application number: CN202010959911.2A
Authority: CN
Inventors: 刘�文
Original assignee: Origin Electric Co Ltd
Current assignee: Origin Electric Co Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-18

Abstract

The invention relates to the technical field of power supply and distribution of an electric power system, and discloses a separated compact buried box-type substation which comprises an underground box arranged below the ground, wherein a ventilation column is arranged at the top of the ground, a heat dissipation box and a low-voltage cabinet are arranged on the upper surface of the ground, a wire outlet hole is formed in one side of the underground box, a waterproof chuck is arranged in the wire outlet hole, a wire outlet pipe is arranged in the waterproof chuck, the other end of the wire outlet pipe is communicated with the low-voltage cabinet, a bridge frame is fixedly connected to the inner wall of one side of the underground box, a transformer is arranged in the underground box, an air inlet hole is formed in one side of the underground box. The box-type substation can be split into three independent modules, namely the underground box, the heat dissipation box and the low-voltage cabinet, free and flexible combination and installation are realized, the limitation of site is avoided, a high-voltage cabinet is not required to be configured on site, only the low-voltage cabinet with extremely small floor area and the ventilation column are left on the overground part, and the floor area is reduced.

Description

Disconnect-type compact buries formula box-type substation

Technical Field

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

Background

With the acceleration of urban and rural modern construction processes, city construction has stepped into the urban beauty stage aimed at improving street view and city appearance. The traditional box-type substation occupies a large area, the traditional box-type substation cannot be used for solving the problem of power capacity expansion in some crowded streets, pedestrian streets and other scenes, and serious inconvenience is brought to traveling of nearby residents. The separated compact buried box-type substation is a novel power complete equipment developed in order to meet the above-mentioned scene.

The box-type substation usually comprises a transformer and power distribution units such as high and low voltage cabinets matched with the transformer, and the existing solution to the problems is to adopt an integrated buried box-type substation, but although the occupied area of the integrated buried box-type substation is smaller than that of the traditional box-type substation, the above-ground part and the underground part of the integrated buried box-type substation need to be tightly connected into a whole and can not be arranged due to the restriction of surrounding environmental conditions, so that the separated compact buried box-type substation capable of being separated and installed is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a separated compact underground box-type substation, which mainly aims to solve the problem that the underground part and the overground part of the integrated underground box-type substation need to be closely connected into a whole and possibly cannot be arranged due to the restriction of surrounding environmental conditions.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a separated compact buried box-type substation comprises an underground box arranged below the ground, a ventilation column is arranged at the top of the ground, a heat dissipation box and a low-voltage cabinet are arranged on the upper surface of the ground, a wire outlet hole is formed in one side of the underground box, a waterproof chuck is arranged in the wire outlet hole, a wire outlet pipe is arranged in the waterproof chuck, the other end of the wire outlet pipe is communicated with the low-voltage cabinet, a bridge is fixedly connected with the inner wall of one side of the underground box, a transformer is arranged in the underground box, an air inlet hole is formed in one side of the underground box, an air inlet pipe is arranged in the air inlet hole, the other end of the air inlet pipe is communicated with the ventilation column, an air outlet hole is formed in the other side of the underground box, an air suction pipe is arranged in the air outlet hole, a fan is fixedly connected with the inner wall, the ventilation net is located one side of fan air outlet, and one side outer wall of heat dissipation case is equipped with temperature monitor, and the below on ground is equipped with maintenance passageway, and maintenance passageway's circumference inner wall is equipped with the well, and the top of well is equipped with the well lid, and one side inner wall fixedly connected with of well lid instructs the appearance with electricity.

Furthermore, one side inner wall fixedly connected with cat ladder of underground box, one side fixedly connected with a plurality of protection framves of cat ladder.

On the basis of the scheme, a metering mutual inductor is fixedly connected to the inner wall of one side of the low-voltage cabinet, a metering device is fixedly connected to the inner wall of one side of the low-voltage cabinet, a cable chamber is arranged in the low-voltage cabinet, and the cable chamber is communicated with the underground box through a cable.

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

Furthermore, a water accumulation groove is formed in the inner wall of the bottom of the underground box, a baffle is arranged at the top of the water accumulation groove, a plurality of water leakage holes are formed in the top of the baffle, a submersible pump is arranged in the water accumulation groove, a water outlet pipe is fixed to one end of a water outlet of the submersible pump and penetrates through the underground box, and a lamp is fixedly connected to the inner wall of the top of the underground box.

On the basis of the scheme, the inner wall of the top of the underground box is fixedly connected with a camera.

As a further scheme of the invention, the outer walls of the tops of the heat dissipation box and the low-voltage cabinet are respectively and fixedly connected with two supporting columns, and the tops of the supporting columns are fixedly connected with a rainproof shed.

(III) advantageous effects

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

1. this box-type substation through with box-type substation split become three independent modules of underground box, heat dissipation case and low-voltage cabinet, realizes the free nimble combination installation, no longer receives the place limitation restriction, and need not to dispose the high-voltage cabinet on the spot, and the overground part only leaves minimum low-voltage cabinet of area and ventilation post, has reduced area.

2. This box-type substation through the setting that designs breathing pipe and outlet duct in the both sides of underground box can be linked together with ventilation column and the inside fan of low-voltage cabinet respectively, builds good operating condition for the transformer operation of underground incasement, improves the reliability of product operation.

3. This box-type substation through the setting of installing electrified appearance of instructing on the well lid can make the staff just can learn transformer high voltage live state before getting into underground box, ensures fortune dimension personnel and overhauls safety.

4. This box-type substation, under the condition that need not to open the well lid, the staff can directly know signal such as underground incasement temperature, transformer low pressure pile head temperature, water level, high-voltage live condition directly from the display on the low-voltage cabinet directly.

5. This box-type substation, through the setting up of installation camera in secret incasement can be real-time carry out real-time control to the transformer of underground incasement to can in time know the operation conditions of transformer.

Drawings

Fig. 1 is a schematic structural view of a separated compact buried box-type substation in a front view in embodiment 1 according to the present invention;

fig. 2 is a schematic view of a manhole cover-free top view structure of an embodiment 1 of a separated compact buried box-type substation provided by the invention;

fig. 3 is a schematic rear view structural diagram of an embodiment 1 of a separated compact buried box-type substation provided by the invention;

fig. 4 is a schematic front sectional view of an embodiment 1 of a separated compact buried box-type substation provided by the present invention;

fig. 5 is a schematic rear sectional view of an embodiment 1 of a separated compact buried box-type substation according to the present invention;

fig. 6 is a schematic cross-sectional structure view of an embodiment 2 of a separated compact buried box-type substation provided by the invention.

In the figure: 1. an underground tank; 2. a well cover; 3. a ventilation column; 4. a ground surface; 5. a heat dissipation box; 6. a low-voltage cabinet; 7. a hoistway; 701. a charge indicator; 8. a ventilation net; 9. an air intake duct; 10. an air inlet pipe; 11. a temperature display; 12. a transformer; 13. a baffle plate; 14. a protective frame; 15. climbing a ladder; 16. a submersible pump; 17. a wire outlet pipe; 18. a cable chamber; 19. a control panel; 20. a display; 21. a frame circuit breaker; 22. a meter; 23. a metering transformer; 24. a bridge frame; 25. a fan; 26. a light fixture; 27. a waterproof chuck; 28. a camera; 29. a support pillar; 30. rain-proof canopy.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-5, a separated compact buried box-type substation comprises an underground box 1 installed below a ground 4, an underground cavity is dug below the ground 4, the underground box 1 is placed in the underground cavity, a heat dissipation box 5 and a low-voltage cabinet 6 are installed on the upper surface of the ground 4, one side of the underground box 1 is provided with a wire outlet hole, a waterproof chuck 27 is installed in the wire outlet hole, the sealing performance of the underground box 1 is improved by the waterproof chuck 27, a wire outlet pipe 17 is hermetically inserted in the waterproof chuck 27, the other end of the wire outlet pipe 17 is communicated with the low-voltage cabinet 6, the inner wall of one side of the underground box 1 is fixed with a bridge frame 24 through bolts, a transformer 12 is installed in the underground box 1, an air ventilation column 3 is installed at the top of the ground 4, one side of the underground box 1 is provided with an air inlet hole, an air inlet pipe 10 is hermetically inserted in the air inlet, the external air is sucked into the ventilation column 3, then enters the underground box 1 from the air inlet pipe 10, the other side of the underground box 1 is provided with an air outlet, an air suction pipe 9 is inserted in the air outlet in a sealing way, then the air enters the air suction pipe 9 from the underground box 1, the inner wall of the bottom of the heat dissipation box 5 is fixedly provided with a fan 25 through a bolt, one end of an air inlet of the fan 25 is communicated with the air suction pipe 9, one side of the heat dissipation box 5 is provided with an air vent, a ventilation net 8 is fixed in the air vent through a bolt, the ventilation net 8 is positioned at one side of an air outlet of the fan 25, then the fan 25 is discharged from the air outlet of the fan 25 and returns to the atmosphere from the ventilation net 8, so as to finish the heat dissipation of the transformer 12, the outer wall at one side of the heat dissipation box 5 is provided with a temperature display 11, an overhaul channel is arranged below the ground 4, the live-line indicator 701 is fixed on the inner wall of one side of the well lid 2 through bolts, the live-line indicator 701 is installed on the well lid 2, so that a worker can know the high-voltage live state of the transformer 12 before entering the underground box 1, and the maintenance safety of operation and maintenance personnel is ensured.

A ladder stand 15 is fixed on the inner wall of one side of an underground box 1 through bolts, workers can conveniently fall into the underground box 1 through the design of the ladder stand 15, a plurality of protective frames 14 are fixed on one side of the ladder stand 15 through bolts, a metering mutual inductor 23 is fixed on the inner wall of one side of a low-voltage cabinet 6 through bolts, the model of the metering mutual inductor 23 is AKH-0.66G, a metering device 22 is fixed on the inner wall of one side of the low-voltage cabinet 6 through bolts, a cable chamber 18 is arranged in the low-voltage cabinet 6, the cable chamber 18 is communicated with the underground box 1 through cables, a frame breaker 21 is arranged in the low-voltage cabinet 6, the model of the frame breaker 21 is 1 PicMCBS 3-FC32, a control panel 19 and a display 20 are fixed on the inner wall of one side of the low-voltage cabinet 6 through bolts, the model of the display 20 is 940, the control panel 19 is electrically connected with the display 20, a water accumulating tank is arranged, a plurality of holes that leak are seted up to the top of baffle 13, and be equipped with immersible pump 16 in the ponding groove, the one end of immersible pump 16 delivery port is fixed with the outlet pipe, under immersible pump 16's effect, discharges the water in the ponding groove underground box 1 from the outlet pipe, and the outlet pipe passes underground box 1, and the top inner wall of underground box 1 passes through the bolt fastening has the lamps and lanterns 26 that are used for the illumination.

The working principle of the embodiment is as follows: when in use, firstly, an underground chamber is dug below the ground 4, then the underground box 1 is placed in the underground chamber, then the heat dissipation box 5 and the low-voltage cabinet 6 are respectively installed on the ground 4, so that the box-type substation is separated into three independent modules, then a cable passes through the outlet pipe 17, the circuit between the underground box 1 and the low-voltage cabinet 6 is communicated through the cable, then the fan 25 is started, outside air is sucked into the ventilation column 3 under the action of the fan 25, then the air enters the underground box 1 from the air inlet pipe 10 to dissipate heat and cool the transformer 12 in the underground box 1, then the air enters the air suction pipe 9 from the underground box 1, then enters the fan 25, then the fan 25 is discharged from the air outlet of the fan 25, and finally the air returns to the atmosphere from the ventilation net 8, so that the heat dissipation of the transformer 12 is completed, when the underground box 1 is required to be overhauled, the staff can know the transformer 12 high-voltage electrification state from the electrification indicating instrument 701 at first, then go down to the underground tank 1 and overhaul the transformer 12, and the staff can directly know signals such as the temperature in the underground tank 1, the temperature of the low-voltage pile head of the transformer 12, the water level, the high-voltage electrification condition and the like from the display 20 on the low-voltage cabinet 6 directly and visually, then, start the submersible pump 16, and discharge water in the water accumulation tank from the water outlet pipe to the underground tank 1 under the action of the submersible pump 16.

Example 2

Referring to fig. 6, a formula box-type substation is buried to disconnect-type compact, the top inner wall including underground box 1 still has camera 28 through the bolt fastening, and camera 28 can real-time monitoring transformer 12's running state, and the top outer wall of heat dissipation case 5 and low-voltage cabinet 6 has two support columns 29 through the bolt fastening respectively, and the top of support column 29 has weather enclosure 30 through the bolt fastening, and weather enclosure 30 can prevent that rainwater from corroding heat dissipation case 5 and low-voltage cabinet 6.

The working principle of the embodiment is as follows: during the use, the staff can be real-time monitoring transformer 12's running state through camera 28, and weather enclosure 30 can prevent that the rainwater from falling on heat dissipation case 5 and low-voltage cabinet 6, to protecting.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

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).