Pressure relief port assembly of gas insulated cabinet

Abstract

The invention discloses a pressure relief port assembly of a gas insulated cabinet. The assembly comprises a protection support welding cylinder, a pressure relief membrane, a sealed O-shaped ring and a sealed compaction member. The protection support welding cylinder is sealedly welded at an outer surface of a gas tank; one end of the protection support welding cylinder is a welding end and the other end is a sealed installation end; and the two ends respectively have openings. an outer edge of the pressure relief membrane is covered by the sealed O-shaped ring and is fastened at the sealed installation end of the protection support welding cylinder by the sealed compaction member. According to the invention, the assembly is suitable for standardized and batch production of port assemblies; qualities and sealing performances of the port assemblies are improved; and it is convenient for flexible arrangements and combination of the port assemblies as well as adjustments of heights and spacings of the port assemblies; besides, the labor intensity of assembly and production workers at the production site is improved and the production efficiency is enhanced.

Description

[0001] technical field [0002] The invention relates to a pressure relief port assembly of a gas insulated cabinet, by means of which the traditional pressure relief port of the gas insulated cabinet can be standardized and batched, the flexible arrangement and combination of the ports can be facilitated, the quality and sealing performance of the ports can be improved, and labor can be reduced Strength increases productivity. Background technique [0003] The pressure relief part of the existing gas insulated cabinet is directly installed on the outer surface of the gas box. After the welding of the air box is completed or the components inside the air box are installed, the parts that make up the pressure relief assembly are installed on the outer surface of the air box through bolts, and the "O" ring is used to form a static seal to ensure the air The airtightness of the box. [0004] This pressure relief part is installed at the assembly production site, and the stati...

AI Technical Summary

Problems solved by technology

[0004] This pressure relief part is installed at the assembly production site, and the static sealing pressure and pressure relief pressure are guaranteed by the bolt tightening pressure, so there are often human reasons that the bolts are not tightened to the design torque or due to environmental factors during the installation process. Dust or foreign matter is trapped on the sealing surface, and finally the airtightness of the air box cannot meet the design requirements, and the standardization and mass production of the pressure relief part cannot be realized, and its production quality and sealing performance cannot be guaranteed.

In addition, since the pressure relief part is directly installed on the outer surface of the air box, it is necessary to consider whether the installation is convenient or whether it can be sealed during design, which greatly restricts the design position of the pressure relief part

When installed at the assembly production site, the air box is relatively large in size, heavy in weight or inconvenient for installation, resulting in difficulty in installation and increased labor intensity

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