CN-224217928-U - Box transformer substation base with Z-shaped water seepage prevention plate

CN224217928UCN 224217928 UCN224217928 UCN 224217928UCN-224217928-U

Abstract

The utility model discloses a box transformer substation base with a Z-shaped water seepage prevention plate, which comprises a base body, wherein the Z-shaped water seepage prevention plate is arranged on the periphery of the top of the base body, the Z-shaped water seepage prevention plate consists of a horizontal plane, a vertical lower hem positioned on the outer side of the horizontal plane and a vertical upper hem positioned on the inner side of the horizontal plane, the horizontal plane is welded on the top surface of the base body and is positioned between the bottom surface of a box transformer substation shell and the top surface of the base body, the lower hem is welded on the outer wall of the base body, and the upper hem is positioned in the box transformer substation shell. Under the condition of not changing the integral shape of the box transformer substation, the Z-shaped water seepage prevention plate skillfully prevents rainwater or condensed water from entering the box body through the gap, and can realize good water seepage prevention performance, so that the utility model can improve the electrical insulation performance, and the Z-shaped water seepage prevention plate can restrict 4 degrees of freedom, so that the positioning between the box transformer substation shell and the base can be better realized.

Inventors

CHEN JUAN
LI JUNYU
CAO JINBIN
CHEN SHULONG
FENG QIANXING
WANG XINGWEN

Assignees

广州白云电器设备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250528

Claims (6)

1. A box transformer substation base with a Z-shaped water seepage prevention plate comprises a base body and is characterized in that the Z-shaped water seepage prevention plate is arranged on the periphery of the top of the base body and consists of a horizontal plane, a vertical lower hem positioned on the outer side of the horizontal plane and a vertical upper hem positioned on the inner side of the horizontal plane, the horizontal plane is welded on the top surface of the base body and is positioned between the bottom surface of a box transformer substation shell and the top surface of the base body, the lower hem is welded on the outer wall of the base body, and the upper hem is positioned in the box transformer substation shell.
2. The base of a box transformer substation with a Z-shaped water seepage prevention plate according to claim 1, wherein a gap is formed between the upper folded edge and the inner wall of the shell of the box transformer substation.
3. The box transformer substation base with the Z-shaped water seepage prevention plate according to claim 2, wherein a waterproof adhesive tape is arranged between the horizontal plane of the Z-shaped water seepage prevention plate and the bottom surface of the box transformer substation shell.
4. The tank transformer base with Z-shaped water seepage prevention plate of claim 3, wherein the gap between the bottom surface of the tank transformer shell and the outer side of the horizontal plane of the Z-shaped water seepage prevention plate is filled with structural adhesive.
5. The tank transformer substation base with the Z-shaped water seepage prevention plate of claim 4, wherein the Z-shaped water seepage prevention plate is an integrally formed sheet metal part.
6. The base of the box transformer substation with the Z-shaped water seepage prevention plate of claim 5, wherein the height of the upper folded edge is 10-20 mm.

Description

Box transformer substation base with Z-shaped water seepage prevention plate Technical Field The utility model relates to a box transformer substation base, in particular to a box transformer substation base with a Z-shaped water seepage prevention plate. Background With the development of new energy (photovoltaic and wind power) power and the continuous innovation of transmission technology, new energy power grid connection is gradually increased in recent years. In the boost grid-connected equipment, the box-type transformer substation has the advantages of prefabrication, convenience in transportation, convenience in installation, high safety and the like in the convergence and boost grid-connected equipment. The Chinese transformer substation is more suitable for use environments such as photovoltaic and wind power due to the characteristics of simple structure, convenient maintenance, convenient heat dissipation of the external oil-containing transformer and the like. Because the installation and use environments of new energy equipment such as photovoltaic equipment, wind power equipment and the like are special, the photovoltaic equipment is often installed in high-light-intensity and long-light-illumination areas such as deserts and the like, wind power projects are often installed in high-altitude and wind-power-resource-rich areas, and severe weather conditions such as heavy rainfall, high wind sand and the like are often caused in the areas. As shown in fig. 1 and 2, a conventional box transformer substation base 1 is formed by welding channel steel and steel plates, and is in contact with a box body shell 2 on only one surface, and the structure has the following defects: 1. The base is fastened by the bolts only, the base is kept in close contact with the shell for sealing and waterproofing, and after the box is used for a long time, gaps are unavoidably formed, so that the phenomenon of water seepage occurs. 2. The contact surface of the base and the shell is a plane, and under the condition of extreme weather outside, after the structural adhesive of the contact gap of the base and the shell ages for a short time, water vapor easily invades into the box transformer, and the box transformer equipment is damaged. In the case of rain, a gap is formed between the conventional box transformer substation base 1 and the box transformer substation shell 2, and rainwater A can flow down along the boundary of the box transformer substation shell 2. When the rainwater A reaches the gap, if the structural adhesive for sealing is aged and cracked, the rainwater A slowly permeates into the box-type transformer housing 2 along the gap. Disclosure of utility model The utility model aims to provide the box transformer base with the Z-shaped water seepage prevention plate, which has the advantages of simple structure, low cost and capability of realizing good water seepage prevention performance so as to improve the electrical insulation performance. The box transformer substation base with the Z-shaped water seepage prevention plate comprises a base body and is characterized in that the Z-shaped water seepage prevention plate is arranged on the periphery of the top of the base body and consists of a horizontal plane, a vertical lower hem positioned on the outer side of the horizontal plane and a vertical upper hem positioned on the inner side of the horizontal plane, the horizontal plane is welded on the top surface of the base body and is positioned between the bottom surface of a box transformer substation shell and the top surface of the base body, the lower hem is welded on the outer wall of the base body, and the upper hem is positioned in the box transformer substation shell. Under the condition of not changing the integral shape of the box transformer substation, the Z-shaped water seepage prevention plate skillfully prevents rainwater or condensed water from entering the box body through the gap, and can realize good water seepage prevention performance, thereby avoiding the electric insulation performance reduction caused by the increase of the humidity in the box body. A gap is formed between the upper folded edge and the inner wall of the box transformer substation shell. A waterproof adhesive tape is arranged between the horizontal plane of the Z-shaped water seepage prevention plate and the bottom surface of the box transformer shell. In the utility model, structural adhesive is filled in a gap between the bottom surface of the box transformer shell and the outer side of the horizontal plane of the Z-shaped water seepage prevention plate. The Z-shaped water seepage prevention plate is an integrally formed sheet metal part. The height of the upper folded edge is 10-20 mm. Compared with the prior art, the utility model has the following remarkable effects: ⑴ Under the condition of not changing the integral shape of the box transformer substation, the Z-shaped water seepage prevention plate skillful