CN210111444U - Box type substation - Google Patents

Abstract

The utility model belongs to the technical field of electromechanical device transportation, especially, relate to a box substation, be in including box and setting a plurality of electrical equipment in the box, the box is fixed subaerial, and the underground is provided with and is used for laying the cable pit of electrical equipment's cable, the top of box is provided with the louvre, and is a plurality of electrical equipment is spaced each other, so adjacent between the electrical equipment and form vertical wind channel between the lateral wall of electrical equipment and box, the upper end in wind channel is passed through the louvre communicates with each other with the atmosphere, the lower extreme in wind channel with the cable pit communicates with each other. According to the box-type substation, hot air continuously rises and is exhausted out of the box body by utilizing the air duct and the air flow circulation, cold air in the cable trench is continuously supplemented, the temperature in the box body of the whole box-type substation is maintained within a certain range by utilizing cold and hot air exchange and heat circulation, additional forced cooling equipment such as an air conditioner and a fan is not needed, and the energy consumption of the box-type substation is reduced.

Description

Box type substation

technical field

The utility model belongs to the technical field of rail transit, in particular to a box-type substation.

Background technique

In the current urban rail transit system, traction power substations are mainly box-type and room-type. The existing rail transit power traction substations reasonably arrange the necessary electrical equipment such as station transformers, high-voltage switch cabinets, DC switch cabinets, rectifier power cabinets, rectifier transformers, AC low-voltage switch cabinets and comprehensive control panels. Inside the box, the box-type substation is listed as an independent functional unit beside the station or the line site, or the box-type layout is adopted to replace the box with a house. Ventilation fans and air conditioners are installed in two different methods. and other forced refrigeration equipment.

The auxiliary equipment used in this box-type or room-type substation are fans and air conditioners. In addition to the energy consumption of the substation itself, the energy consumption of the fans and air conditioners when the temperature range of the substation is maintained through the fans and air conditioners It accounts for a large proportion of the energy consumption of substations, especially the energy consumption of air conditioners is relatively high, so this kind of box-type or room-type substations is not energy-saving enough, and the energy consumption is relatively high, which is in line with the energy-saving emission reduction and low energy consumption advocated by the state. contrary to principle.

Utility model content

The technical problem to be solved by the utility model is: aiming at the problem of high energy consumption of box-type or room-type substations in the prior art, a box-type substation is provided.

In order to solve the above technical problems, the embodiment of the present invention provides a box-type substation, which includes a box body and a plurality of electrical devices arranged in the box body, the box body is fixed on the ground, and a A cable trench for placing the cables of the electrical equipment, the top of the box body is provided with heat dissipation holes, and a plurality of the electrical equipment are spaced from each other, so that the electrical equipment and the box body are located between adjacent electrical equipment. A vertical air duct is formed between the side walls of the air duct, the upper end of the air duct communicates with the atmosphere through the heat dissipation hole, and the lower end of the air duct communicates with the cable channel.

Optionally, the box body includes a lower box body and a top cover, the top cover covers the upper opening of the lower box body, and the lower box body includes a side plate and a bottom plate connected below the side plate , the heat dissipation holes are provided with a plurality of them.

Optionally, the heat dissipation hole is provided on the side plate, the heat dissipation hole penetrates the side plate, the inner end of the heat dissipation hole communicates with the air duct, and the outer end of the heat dissipation hole communicates with the atmosphere , a plurality of the heat dissipation holes are arranged around the side plate.

Optionally, the top cover is fitted and fixed on the top end surface of the side plate, and the part of the top cover protruding outward from the top end surface of the lower box forms a rain eaves, and the heat dissipation hole is The inner end is located inside the box body and communicated with the air duct, the outer end of the heat dissipation hole is located on the lower surface of the rain eaves and communicated with the atmosphere, and a plurality of the heat dissipation holes surround the circumference of the top cover along the arrangement.

Optionally, a preset distance is left between the top cover and the side panels, and the part of the top cover protruding outward from the top end face of the lower box forms a rain eaves, and the heat dissipation holes include: the lower surface of the top cover and a first hole in the shape of a horizontal strip and a second hole in the side plate and in the shape of a horizontal strip;

The inner end of the first hole is located inside the box and communicated with the air duct, and the outer end of the first hole is located on the lower surface of the rain eaves and communicated with the atmosphere; the second The hole portion penetrates the side plate, the inner end of the second hole portion communicates with the air duct, and the outer end of the second hole portion communicates with the atmosphere.

Optionally, the height of the electrical equipment is less than the height of the top cover, so that a top heat dissipation cavity is formed between the lower surface of the top cover and the upper surfaces of the plurality of electrical equipments, and the top heat dissipation cavity is communicated with the air duct and the heat dissipation hole.

Optionally, the cable trench includes a side trench and a central trench communicated with the side trench, the central trench is located just below the bottom plate of the box body, and the side trench is located below the peripheral ground of the box body. , the outer surface of the box body is provided with a ventilation port, the upper end of the ventilation port is communicated with the atmosphere, and the lower end of the ventilation port is communicated with the side ditch.

Optionally, a plurality of the side grooves are provided, and the plurality of the side grooves radiate outward from the center groove.

Optionally, a ventilation hole is provided on the bottom plate of the box body, and the central groove communicates with the lower end of the air duct through the ventilation hole.

Optionally, the electrical equipment that is most sensitive to temperature changes is arranged close to the vent.

Optionally, among the plurality of electrical devices, the electrical devices with a larger temperature increase during operation and the electrical devices with a smaller temperature increase during operation are arranged in a staggered arrangement.

According to the box-type substation according to the embodiment of the present invention, the cable trench is below the ground, and the temperature is relatively low. When the temperature rises significantly, the hot air rises and is discharged through the heat dissipation holes arranged on the top cover of the box body, and at the same time The cold air in the cable trench enters the box, and when the cold air passes through the air duct, it absorbs the heat in the box (the heat emitted by the electrical equipment), then becomes hot air and continues to rise, and is discharged through the cooling holes. In this way, using the air duct and air circulation, the hot air continuously rises and discharges from the box, and the cold air in the cable trench is continuously replenished, so that the temperature in the box of the entire box-type substation is maintained by the exchange of cold and hot air and thermal circulation. Within a certain range, additional forced cooling equipment such as air conditioners and fans are not required, which reduces the energy consumption of the box-type substation.

In addition, the box-type substation does not have fans and air conditioners, so there is no need to set up corresponding wiring, fixed positions and structures, which reduces the equipment of the box-type substation, saves space, reduces costs, and further reduces the box-type substation. energy consumption.

Description of drawings

Fig. 1 is the schematic diagram of the box-type substation provided by the first embodiment of the present invention;

2 is another perspective view of the box-type substation provided by the first embodiment of the present invention;

3 is a perspective view of the box body of the box-type substation provided by the first embodiment of the present invention;

4 is a schematic diagram of a box-type substation provided by the second embodiment of the present invention;

5 is a perspective view of a box body of a box-type substation provided by the second embodiment of the present invention.

The reference numbers in the description are as follows:

1. Box body; 11. Top cover; 111. Rain eaves; 12. Heat dissipation holes; 13. Side plate; 14. Bottom plate;

2. Electrical equipment; 2a. Electrical equipment with a large temperature rise; 2b, Electrical equipment with a small temperature rise;

3. Ground;

4. Cable trench; 41. Side trench; 42. Central trench;

5. Air duct;

6. Top cooling cavity;

7. Cable;

8. Vents.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

The box-type substation provided by the embodiment of the present invention includes a box body and a plurality of electrical devices arranged in the box body. The box body is fixed on the ground, and cables for placing the electrical devices are arranged under the ground. The top of the box is provided with heat dissipation holes, and a plurality of the electrical devices are spaced from each other to form vertical vertical between the adjacent electrical devices and between the electrical devices and the side walls of the box. A straight air duct, the upper end of the air duct communicates with the atmosphere through the heat dissipation hole, and the lower end of the air duct communicates with the cable channel.

According to the box-type substation according to the embodiment of the present invention, the cable trench is below the ground, and the temperature is relatively low. When the temperature rises significantly, the hot air rises and is discharged through the heat dissipation holes arranged on the top cover of the box body, and at the same time The cold air in the cable trench enters the box, and when the cold air passes through the air duct, it absorbs the heat in the box (the heat emitted by the electrical equipment), then becomes hot air and continues to rise, and is discharged through the cooling holes. In this way, using the air duct and air circulation, the hot air continuously rises and discharges from the box, and the cold air in the cable trench is continuously replenished, so that the temperature in the box of the entire box-type substation is maintained by the exchange of cold and hot air and thermal circulation. Within a certain range, additional forced cooling equipment such as air conditioners and fans are not required, which reduces the energy consumption of the box-type substation.

In addition, the box-type substation does not have fans and air conditioners, so there is no need to set up corresponding wiring, fixed positions and structures, which reduces the equipment of the box-type substation, saves space, reduces costs, and further reduces the box-type substation. energy consumption.

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 5 .

first embodiment

As shown in FIGS. 1 to 3 , the box-type substation provided by the first embodiment of the present invention includes a box body 1 and a plurality of electrical devices 2 arranged in the box body 1 , and the box body 1 is fixed On the ground 3, a cable trench 4 for placing the cables 7 of the electrical equipment 2 is provided under the ground 3, and heat dissipation holes 12 are provided on the top cover 11 of the box body 1, and a plurality of the electrical equipment 2 are spaced from each other. , so as to form a vertical air duct 5 between the adjacent electrical equipment 2 and between the electrical equipment 2 and the side plate 13 of the box 1, and the upper end of the air duct 5 passes through the heat dissipation hole 12 In communication with the atmosphere, the lower end of the air duct 5 is in communication with the cable trench 4 .

As shown in FIG. 3 , the box body 1 includes a lower box body and a top cover 11 , the top cover 11 covers the upper opening of the lower box body, and the lower box body includes a side plate 13 and is connected to the lower box body. The bottom plate 14 below the side plate 13 is provided with a plurality of the heat dissipation holes 12 . The air outlet direction of the heat dissipation hole 12 is perpendicular to the side plate 13 of the box body 1 . In this way, the airtightness of the casing 1 is facilitated.

As shown in FIG. 1 , the height of the electrical equipment 2 is smaller than the height of the top cover 11 , so that a top heat dissipation cavity 6 is formed between the lower surface of the top cover 11 and the upper surfaces of the plurality of electrical equipments 2 , the top heat dissipation cavity 6 communicates with the air duct 5 and the heat dissipation hole 12 .

As shown in FIG. 1 and FIG. 2 , the top cover 12 is attached and fixed on the top end surface of the side panel 13 , and the periphery of the top cover 11 protrudes outward from the top end surface of the lower box. Rain eaves 111, the inner ends of the heat dissipation holes 12 are located inside the box 1 and communicate with the air duct 5, and the outer ends of the heat dissipation holes 12 are located on the lower surface of the rain eaves 111 and communicate with the atmosphere , a plurality of the heat dissipation holes 12 are arranged around the periphery of the top cover 11 .

The heat dissipation holes 12 can be elongated shapes similar to shutters, and the inclination angle of the shutters can be adjusted according to the heat dissipation of the electrical equipment 2 in the box-type substation. The rain eaves 111 can provide dust and rain protection for the heat dissipation holes 12 .

As shown in FIG. 2 , the cable trench 4 includes a side trench 41 and a central trench 42 communicating with the side trench 41 . The central trench 42 is located just below the bottom plate 14 of the box 1 , and the side trench 41 is located below the peripheral ground 3 of the box body 1, and the peripheral ground 3 of the box body 1 is provided with a ventilation port 8, the upper end of the ventilation port 8 is communicated with the atmosphere, and the lower end of the ventilation port 8 is connected to the side. The grooves 41 communicate with each other.

The arrangement of the vents 8 can ensure the permeability of the cable trench 4 , and the vents 8 are opened at a position closer to the box body 1 to facilitate the ventilation inside the cable trench 4 .

Preferably, a plurality of the side grooves 41 are provided, and the plurality of the side grooves 41 radiate outward from the center groove 42 . A plurality of the gutter 41 radiating outwards can make more cold air exchange heat with the inside of the box 1 .

The bottom plate 14 of the box body 1 is provided with a ventilation hole, and the central groove 42 communicates with the lower end of the air duct 5 through the ventilation hole. Preferably, a ventilation hole is provided below each of the air ducts 5 . In this way, the heat exchange is more uniform.

When the number of the electrical devices 2 is large, and the number of the air ducts 5 formed is two or more, correspondingly, there are also a plurality of the ventilation holes.

The electrical equipment 2 , which is most sensitive to temperature changes, is arranged close to the ventilation opening 8 .

Among the plurality of electrical apparatuses 2, the electrical apparatuses 2a with a larger temperature rise during operation and the electrical apparatuses 2b with a smaller rise in temperature during operation are arranged in a staggered arrangement.

The electrical equipment 2a that generates a large amount of heat and has a large temperature rise during operation and the electrical equipment 2b that has a small temperature rise during operation are staggered, and the electrical equipment 2 that is most sensitive to temperature changes is close to the vent 8. The arrangement ensures that the temperature rise change in the box 1 is small.

As shown in Figures 1 and 2, in the box-type substation according to the first embodiment of the present invention, the cable trench 4 is below the ground, and the temperature is relatively low. The heat dissipation holes 12 on the top cover 11 of the body 1 are discharged, and the cold air from the cable trench 4 enters the box body 1. When the cold air passes through the air duct 5, it absorbs the heat in the box body 1 (the heat emitted by the electrical equipment 2) and becomes The hot air continues to rise and is exhausted through the heat dissipation holes 12 . In this way, by using the air duct 5 and the air circulation, the hot air continuously rises and discharges out of the box 1, and the cold air in the cable trench 4 is continuously replenished, so that the whole box of the box-type substation is replaced by the exchange of cold and hot air and thermal circulation. The temperature in 1 is maintained within a certain range, and additional forced cooling equipment such as air conditioners and fans are not required, which reduces the energy consumption of the box-type substation.

In addition, the box-type substation does not have fans and air conditioners, so there is no need to set up corresponding wiring, fixed positions and structures, which reduces the equipment of the box-type substation, saves space, reduces costs, and further reduces the box-type substation. energy consumption.

Second Embodiment

FIG. 4 and FIG. 5 show the box-type substation provided by the second embodiment of the present utility model, which is different from the first embodiment in that:

A predetermined distance is left between the top cover 11 and the side plate 13 (compared to the first embodiment, the top cover 11 is elevated), and the heat dissipation holes 12 are provided on the lower surface of the top cover 11 and are horizontal The strip-shaped first hole portion 12a and the horizontal strip-shaped second hole portion 12b are provided on the side plate 13 . The inner end of the first hole portion 12a is located inside the box 1 and communicated with the air duct 5, and the outer end of the first hole portion 12a is located on the lower surface of the rain eaves 111 and communicated with the atmosphere The second hole portion 12b penetrates through the side plate 13, the inner end of the second hole portion 12b communicates with the air duct 5, and the outer end of the second hole portion 12b communicates with the atmosphere.

Compared with the first embodiment, the second embodiment can increase the number of heat dissipation holes 12 and the space for air circulation, the heat dissipation effect is better, and it can meet the larger heat dissipation requirements of the box-type substation.

The third embodiment (not shown)

The box-type substation provided by the third embodiment of the present invention is different from the first embodiment in that:

The heat dissipation hole is arranged on the side plate, the heat dissipation hole penetrates the side plate, the inner end of the heat dissipation hole communicates with the air duct, and the outer end of the heat dissipation hole communicates with the atmosphere. The heat dissipation holes are arranged around the side plate.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (11)

1. A box-type substation is characterized in that, comprising a box body and a plurality of electrical equipments arranged in the box body, the box body is fixed on the ground, and the ground is provided with a device for placing the electrical equipment. A cable trench for cables, the top of the box is provided with heat dissipation holes, and a plurality of the electrical devices are spaced from each other to form between the adjacent electrical devices and between the electrical devices and the side wall of the box A vertical air duct, the upper end of the air duct communicates with the atmosphere through the heat dissipation hole, and the lower end of the air duct communicates with the cable channel. 2 . The box-type substation according to claim 1 , wherein the box body comprises a lower box body and a top cover, the top cover covers the upper opening of the lower box body, and the lower box body is 5 . 3 . The box body includes a side plate and a bottom plate connected below the side plate, and a plurality of the heat dissipation holes are arranged. 3 . The box-type substation according to claim 2 , wherein the heat dissipation hole is provided on the side plate, the heat dissipation hole penetrates the side plate, and the inner end of the heat dissipation hole is connected to the side plate. 4 . The air ducts communicate with each other, the outer ends of the heat dissipation holes communicate with the atmosphere, and a plurality of the heat dissipation holes are arranged around the side plate. 4 . The box-type substation according to claim 2 , wherein the top cover is fitted and fixed on the top end surface of the side plate, and the periphery of the top cover protrudes outward from the lower box. 5 . A part of the top end face of the body forms a rain eaves, the inner ends of the heat dissipation holes are located inside the box body and communicate with the air duct, and the outer ends of the heat dissipation holes are located on the lower surface of the rain eaves and are connected to the atmosphere. In communication, a plurality of the heat dissipation holes are arranged around the periphery of the top cover. 5 . The box-type substation according to claim 2 , wherein a predetermined distance is left between the top cover and the side plates, and the periphery of the top cover protrudes outward from the bottom of the lower box. 6 . A part of the end face of the top forms a rain eaves, and the heat dissipation hole includes a first hole part arranged on the lower surface of the top cover and in the shape of a horizontal strip and a second hole part arranged on the side plate and in the shape of a horizontal strip ; The inner end of the first hole is located inside the box and communicated with the air duct, and the outer end of the first hole is located on the lower surface of the rain eaves and communicated with the atmosphere; the second The hole portion penetrates the side plate, the inner end of the second hole portion communicates with the air duct, and the outer end of the second hole portion communicates with the atmosphere. 6 . The box-type substation according to claim 2 , wherein the height of the electrical equipment is less than the height of the top cover, so that the lower surface of the top cover is connected with the plurality of electrical equipments. 7 . A top heat dissipation cavity is formed between the upper surfaces, and the top heat dissipation cavity communicates with the air duct and the heat dissipation hole. 7 . The box-type substation according to claim 2 , wherein the cable trench comprises a side trench and a central trench communicated with the side trench, and the central trench is located at the front of the bottom plate of the box body. 8 . Below, the side ditch is located below the outer surface of the box body, the outer surface of the box body is provided with a ventilation port, the upper end of the ventilation port communicates with the atmosphere, and the lower end of the ventilation port communicates with the side ditch . 8 . The box-type substation according to claim 7 , wherein a plurality of side trenches are provided, and the plurality of side trenches radiate outward from the center trench. 9 . 9 . The box-type substation according to claim 7 , wherein a ventilation hole is provided on the bottom plate of the box body, and the central groove communicates with the lower end of the air duct through the ventilation hole. 10 . 10 . The box-type substation according to claim 7 , wherein the electrical equipment that is most sensitive to temperature changes is arranged close to the vent. 11 . 11. The box-type substation according to claim 1 or 10, characterized in that, among the plurality of electrical equipments, the electrical equipment with a larger temperature rise during operation and the electrical equipment with a smaller temperature rise during operation Stagger the arrangement.

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