CN205407045U - Prepackage type transformer case - Google Patents

Abstract

The utility model discloses a prefabricated transformer box in the field of transformer equipment, which comprises a high-voltage operating room, a voltage transforming room and a low-voltage operating room connected in series. There are connecting busbar cabinets and operation aisles. There are AC cabinets, inverter cabinets, DC cabinets, communication cabinets and control cabinets on both sides of the operation aisle. There are multiple cabinet doors on the side wall of the low-voltage operation room. There is an air outlet on the top of the cabinet door. The utility model is easy to assemble, has good heat dissipation performance, long service life of the equipment in the box, reasonable arrangement of equipment in the low-voltage operation room, and convenient operation. It can be used in regional power supply places.

Description

A prefabricated transformer box

technical field

The utility model relates to a power transformation device, in particular to a power transformation box.

Background technique

The smart photovoltaic prefabricated transformer box (hereinafter referred to as: transformer box) is a transformer box that integrates the equipment of the photovoltaic power station that was originally distributed and installed into a whole. This solution can effectively overcome the circulation between multiple inverters, solve the increased construction difficulty caused by the distribution of equipment in multiple places, and solve the large loss caused by longer conductors. However, it poses a new challenge to the heat dissipation and ventilation solutions commonly used in the industry: all the equipment is integrated into one box, and it is difficult to keep the temperature rise in the box below the rated value, which will cause the inverter to decrease in efficiency or shut down due to high temperature. In view of the above situation, we adjusted the design idea of the radiator and redesigned various heat dissipation devices, including the box shell of the transformer box, which also absorbed the structural strengths of the container, and partially used the standard parts of the container. Thereby fundamentally improving the heat balance effect in the box, increasing the heat dissipation efficiency, and achieving the purpose of effectively ensuring long-term reliable operation of the substation box.

Utility model content

The purpose of the utility model is to provide a pre-installed transformer box, which enhances the heat dissipation performance of the box body and prolongs the service life of the equipment in the box body.

The purpose of this utility model is achieved in the following way: a prefabricated transformer box, including a high-voltage operating room, a transformer room and a low-voltage operating room connected in series, an oil-immersed transformer is arranged in the transformer room, and the The low-voltage operation room is equipped with a connecting busbar cabinet and an operation aisle. There are AC cabinets, inverter cabinets, DC cabinets, communication cabinets and control cabinets on both sides of the operation aisle. There are multiple cabinet doors on the side wall of the low-voltage operation room. The bottom of the cabinet door is provided with an air inlet, and the top of the cabinet door is provided with an air outlet.

Compared with the prior art, the utility model has the advantages of convenient assembly, good heat dissipation performance, long service life of the equipment in the box, reasonable arrangement of equipment in the low-voltage operation room, and convenient operation. The utility model can be used in regional power supply places.

In order to further enhance the heat dissipation performance in the low-pressure operating room, louvers are provided on the outside of the air inlet and outlet, dust-proof filters are arranged on the inside of the air inlet and outlet, and an axial flow fan is arranged inside the air outlet.

In order to further improve the safety in the low-voltage operating room, fire-fighting equipment is placed in the corner of the low-voltage operating room.

In order to enhance the heat insulation performance of the low-pressure operating room, the box body of the low-voltage operating room is respectively composed of an outer steel plate, a flame-retardant insulation layer and an inner steel plate from outside to inside.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a sectional view along the line A-A in Fig. 1 .

Fig. 3 is a sectional view along the direction B-B in Fig. 1 .

Among them, 1 high-voltage operation room, 2 transformer room, 3 low-voltage operation room, 301 operation aisle, 4 cabinet doors, 401 air inlet, 402 air outlet, 403 axial flow fan, 404 dust-proof filter, 405 louver, 406 outer steel plate , 407 flame retardant insulation layer, 408 inner steel plate.

detailed description

A prefabricated transformer box as shown in Figure 1-3, including a high-voltage operating room 1, a transformer room 2, and a low-voltage operating room 3 connected in series. The operation room 3 is provided with connecting busbar cabinets and an operation aisle 301. There are AC cabinets, inverter cabinets, DC cabinets, communication cabinets and control cabinets on both sides of the operation aisle 301. Fire-fighting equipment is placed in the corner of the low-voltage operation room 3. Low-voltage operation The side wall of the chamber 3 is provided with a plurality of cabinet doors 4, the bottom of the cabinet door 4 is provided with an air inlet 401, the top of the cabinet door 4 is provided with an air outlet 402, the outside of the air inlet 401 and the air outlet 402 is provided with louvers 405, and the air inlet 401 and the inner side of the air outlet 402 are provided with a dust-proof filter 404, and the inside of the air outlet 402 is provided with an axial flow fan 403. Steel plate 408.

The utility model is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the utility model, those skilled in the art can make some technical features based on the disclosed technical content without creative work. Replacement and deformation, these replacements and deformations are all within the protection scope of the present utility model.

Claims (4)

1. a prepackage type power transformation box, it is characterized in that, including the operation with high pressure room being cascaded, transformation room and low voltage operated room, described transformation indoor are provided with oil-filled transformer, described low voltage operated indoor are provided with connection bus cabinet and operation passageway, and operation both sides, passageway is provided with exchange cabinet, inverter cabinet, DC cabinet, communication counter and switch board, and described low voltage operated room sidewall is provided with multiple cabinet door, offering air inlet bottom described cabinet door, the top of cabinet door offers air outlet.

2. a kind of prepackage type power transformation box according to claim 1, it is characterised in that the arranged outside of described air inlet and air outlet has the inner side of shutter, air inlet and air outlet to be provided with anti-dust filter mesh, is provided with axial flow blower in air outlet.

3. a kind of prepackage type power transformation box according to claim 1 and 2, it is characterised in that the corner of described low voltage operated room is placed with fire-fighting equipment.

4. a kind of prepackage type power transformation box according to claim 1 and 2, it is characterised in that the casing of described low voltage operated room respectively outer steel plate, fire-retardant heat insulation floor and interior steel plate from outside to inside.