External explosion-proof device of transformer ascending flanged base

By using an external explosion-proof device for the transformer riser, and utilizing an anti-arch membrane sliding ring and a pressure-reducing chamber assembly, a dual explosion-proof effect for the transformer riser is achieved. This solves the problems of complex installation and high cost of existing devices, reduces the risk of deflagration, and saves replacement costs.

CN224417591UActive Publication Date: 2026-06-26CHANGZHOU ZHIRUN ELECTRIC CO LTD
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Patent Information

Application Number
CN202521458176.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-06-26
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

The existing explosion-proof devices for transformer risers have problems such as complicated installation and replacement of the anti-arch membrane, high cost, and poor explosion-proof effect.

Method used

An external explosion-proof device for the transformer riser is adopted, including components such as an exhaust port, an anti-arching diaphragm sliding ring, a compression spring, a connecting ring, and a decompression chamber. Gas pushes the anti-arching diaphragm sliding ring to compress the spring. When it ruptures, an alarm is triggered and the gas enters the decompression chamber, achieving dual protection and preventing the oil-gas mixture from contacting the air.

Benefits of technology

It achieves dual explosion-proof effect, reduces the risk of oil-gas mixture coming into contact with air, lowers the risk of deflagration, and has a simple structure that facilitates the replacement of the anti-arching diaphragm, saving enterprise costs.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the field of explosion-proof safety protection of oil immersed transformers, and discloses an external explosion-proof device of a transformer ascending flanged base. An exhaust port is fixedly connected to the side of a transformer ascending flanged base, a sliding groove is formed in the right side of the exhaust port, an ascending flanged base pressure relief pressure sensor is fixedly connected to the bottom of the inner side of the sliding groove, an anti-arch thin film sliding ring is slidably connected to the inner side of the sliding groove, and an anti-arch thin film is fixedly connected to the inner side of the anti-arch thin film sliding ring. The outer side of the exhaust port is slidably connected with a connecting ring, the right side of the connecting ring is fixedly connected with a sealing ring, the sealing ring is slidably connected with an air inlet pipe, and the left side of the air inlet pipe is fixedly connected with a connecting ring limiting block. By means of the whole device, direct contact between an oil-gas mixture and air can be avoided, the detonation risk is reduced, double protection is achieved, and the anti-explosion effect is improved.
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