CN201639165U - A high and low voltage prefabricated substation using a stepped roof for ventilation and heat dissipation - Google Patents

Abstract

The utility model discloses a high and low voltage prefabricated substation utilizing a stepped top cover for ventilation and heat dissipation, which comprises a transformer room provided with a transformer, a high voltage room provided with a high voltage switchgear, and a low voltage room provided with a low voltage switchgear. The top cover of the substation is provided with a plurality of air outlets; and the door beam above the door of the transformer room is provided with a plurality of air outlets. In the high and low voltage prefabricated substation using the stepped top cover for ventilation and heat dissipation described in the utility model, the top cover of the substation is manufactured into a stepped structure, so that air holes can be opened on the side wall of the stepped structure; and , by increasing the height of the substation box, multiple air outlet holes can be added on the door beam above the door of the transformer room. This structure of increasing the height difference between the air inlet hole and the air outlet hole can obviously intensify the The flow of internal airflow can reduce the temperature of the transformer room and improve the heat dissipation of the substation.

Description

A high and low voltage prefabricated substation using a stepped roof for ventilation and heat dissipation

technical field

The utility model relates to a substation, in particular to a high and low voltage prefabricated substation utilizing a stepped top cover for ventilation and heat dissipation.

Background technique

The high and low voltage prefabricated substation is a compact complete power distribution device composed of high voltage equipment, power transformers, low voltage electrical equipment and auxiliary equipment. It is suitable for receiving and distributing electric energy in a three-phase AC system with a rated voltage of 6~35/0.4~10kV and a rated frequency of 50Hz. Especially suitable for urban public power distribution, high-rise buildings, residential quarters, industrial and mining enterprises, ports, oil fields, parks, highways and construction sites and other places.

The high and low voltage prefabricated substation has the advantages of compact structure, strong complete set, reliable operation, convenient maintenance, beautiful appearance and perfect "five prevention" functions. Especially economically, it has outstanding effects such as small footprint, flexible site selection, convenient movement, short station construction period, and small investment. It is the preferred distribution and transformation complete set of equipment for urban and rural power grids.

The high-voltage and low-voltage prefabricated substation in the prior art, as shown in Figure 1, includes a transformer room 1 for placing a transformer, a high-voltage room 2 for placing high-voltage switchgear, and a low-voltage room 3 for placing low-voltage switchgear. An air outlet hole 6 is opened on the door of the transformer room 1, an air outlet hole 7 is also arranged on the door beam of the transformer room 1, and an air inlet hole is arranged on the bottom support of the transformer room.

As shown in Figure 2, the external air flow flows in from the air inlet hole of the bottom support, and the temperature of the transformer room is heated up, and flows upward under the action of the buoyancy force, and flows from the air outlet hole 7 on the door beam of the transformer room, the door The air outlet hole 6 flows out, thereby taking away the heat of the transformer room and reducing the temperature rise of the substation.

However, the structure of the high-voltage and low-voltage prefabricated substation in the prior art only has air outlets at the door and door beam of the transformer room, which is difficult to meet the temperature rise requirements of the substation in hot summer.

Utility model content

Aiming at the drawbacks of the prior art, the utility model provides a high and low voltage prefabricated substation with better heat dissipation effect and utilizing a stepped top cover for ventilation and heat dissipation.

The high and low voltage prefabricated substation using the stepped top cover for ventilation and heat dissipation described in the utility model includes a transformer room with a transformer, a high voltage room with a high voltage switchgear, and a low voltage room with a low voltage switchgear. The top cover of the substation is provided with a plurality of air outlets; and the door beam above the door of the transformer room is provided with a plurality of air outlets.

In the high and low voltage prefabricated substation utilizing a stepped roof for ventilation and heat dissipation according to the utility model, the roof of the substation has a ladder structure, and the air outlet holes on the roof are arranged on the side walls of the ladder. The air outlet holes on the top cover are shutters. The upper edge of the air outlet hole on the top cover is provided with a protruding rainproof eaves.

In the high and low voltage prefabricated substation using the stepped roof for ventilation and heat dissipation described in the utility model, the air outlet holes on the door beam above the chamber door are shutters. The upper edge of the air outlet hole on the door beam above the chamber door is provided with a protruding rain-proof eaves.

In the high and low voltage prefabricated substation using the stepped top cover for ventilation and heat dissipation described in the utility model, the top cover of the substation is made into a stepped structure, so that air holes can be opened on the side wall of the stepped structure; and , using the chimney effect to intensify the flow of internal airflow, reduce the temperature of the transformer room, and improve the heat dissipation of the substation.

Description of drawings

Fig. 1 is a structural schematic diagram of a medium and low voltage prefabricated substation in the prior art;

Fig. 2 is a schematic diagram of air flow out of a medium and low voltage prefabricated substation in the prior art;

Fig. 3 is a structural schematic diagram of a high and low voltage prefabricated substation using a stepped roof for ventilation and heat dissipation according to the utility model;

Fig. 4 is a schematic diagram of the air flow out of the high and low voltage prefabricated substation using the stepped top cover for ventilation and heat dissipation according to the utility model;

Fig. 5 is a cross-sectional view of the top cover of the high and low voltage prefabricated substation using the stepped top cover for ventilation and heat dissipation according to the utility model.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it by referring to the description.

As shown in Fig. 3, Fig. 4 and Fig. 5, the high and low voltage prefabricated substation using the stepped top cover for ventilation and heat dissipation according to the utility model includes a transformer room 1 provided with a transformer, and a high voltage room provided with a high voltage switchgear 2. A low-voltage chamber provided with low-voltage switchgear, and a top cover is provided on the top of the substation.

In the utility model, in order to increase the flow rate and quantity of the air flow in the transformer room, a plurality of air outlet holes 5 are provided on the top cover of the substation. On the premise of setting multiple air outlet holes 5, in order to ensure the protection performance of the substation, the top cover of the substation is also set as a stepped structure. In this way, the stepped structure has a facade. Further, the air outlet 5 Set on the side wall where this facade is located. The air outlet hole 5 may specifically be in the form of a louver. And in order to strengthen the rainproof performance of this air outlet hole 5, also can be provided with the protruding rainproof eaves on the upper edge of the air outlet hole 5.

In the case of adding a plurality of air outlet holes 5 to the top cover of the substation, the utility model also increases the height of the substation box body, so that the door beam above the door of the transformer room 1 can also be additionally set. Multiple air outlet holes4. The increase in the height of the substation box increases the height between the air inlet hole and the air outlet hole accordingly. This structure can significantly intensify the flow of internal airflow, reduce the temperature of the transformer room, and improve the heat dissipation of the substation.

The air outlet hole 4 on the door beam above the door of the transformer room described in the utility model can also be set as a louver form, and in order to enhance the rainproof performance of the air outlet hole 4, it can also be installed in the air outlet hole 4. Protruding rain-proof eaves are set on the upper edge.

The arrow in Figure 4 shows the outflow of the airflow in the transformer room. It can be seen that the airflow can not only flow out from the air outlet hole 4 on the door beam above the door of the transformer room, but also flow out from the air outlet hole 5 at the top cover. , greatly increasing the speed and quantity of airflow outflow, which can effectively reduce the temperature rise of the transformer room.

Although the embodiment of the present utility model has been disclosed as above, it is not limited to the use listed in the description and the implementation, and it can be applied to various fields suitable for the present utility model. For those familiar with the art, Further modifications can be readily effected, so the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. A high and low voltage prefabricated substation utilizing a stepped top cover for ventilation and heat dissipation, comprising a transformer room provided with a transformer, a high voltage room provided with a high voltage switchgear, and a low voltage room provided with a low voltage switchgear, characterized in that: The top cover of the substation is provided with a plurality of air outlet holes; and the door beam above the door of the transformer room is provided with a plurality of air outlet holes. 2. The high and low voltage prefabricated substation using a stepped roof for ventilation and heat dissipation as claimed in claim 1, wherein the roof of the substation is a stepped structure, and the air outlet holes on the roof are arranged on the ladder type side walls. 3. The high and low voltage prefabricated substation using a stepped roof for ventilation and heat dissipation according to claim 1, wherein the air outlet holes on the roof are shutters. 4. The high and low voltage prefabricated substation using a stepped roof for ventilation and heat dissipation according to claim 1, wherein a protruding rain-proof cornice is provided on the upper edge of the air outlet hole on the roof. 5. The high and low voltage prefabricated substation utilizing stepped roof for ventilation and heat dissipation according to claim 1, wherein the air outlet holes on the door beam above the chamber door are shutters. 6. The high and low voltage prefabricated substation using stepped roof for ventilation and heat dissipation according to claim 1, characterized in that, the upper edge of the air outlet hole on the door beam above the chamber door is provided with a protruding rainproof eaves.

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