Explosion-proof metering tank with automatic fire extinguishing and thermal runaway early warning

By introducing a dual-chamber fire extinguishing component, an isolation component, and a pressure relief component into the explosion-proof metering box, and combining it with a multi-dimensional thermal runaway early warning and graded linkage control system, the problems of false alarms during thermal runaway early warning and space limitations of the fire extinguishing system in the explosion-proof metering box are solved. The synergistic effect of early cooling and later total flooding fire extinguishing is achieved, thereby improving the explosion-proof safety of the equipment.

CN122297945APending Publication Date: 2026-06-30SHANGHAI PANTING ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI PANTING ENERGY TECH CO LTD
Filing Date
2026-04-07
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing explosion-proof metering boxes are susceptible to false alarms due to sudden changes in the external environment when thermal runaway is detected. A single fire extinguishing system cannot simultaneously provide early cooling and subsequent total flooding and graded fire suppression within a limited space, and there are also safety isolation and pressure control hazards.

Method used

It adopts a dual-chamber fire extinguishing component, isolation component, and pressure relief component, combined with a multi-dimensional thermal runaway early warning and graded linkage control system. The sensor component monitors the data inside and outside the box in real time, realizes differential comparison, performs anti-interference differential early warning, and releases cooling medium and fire extinguishing medium in the early and late stages respectively. Combined with the isolation and pressure relief components, it ensures safety.

Benefits of technology

It improves the accuracy of early warning of thermal runaway, realizes the step-by-step fire suppression of early cooling and later total flooding, avoids false alarms and physical rupture of the enclosure, and enhances the explosion-proof safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of fire protection and explosion-proof technology for electrical equipment, and discloses an explosion-proof metering box with automatic fire extinguishing and thermal runaway early warning. The box includes a body, a door rotatably connected to the outer side of the body, a controller located in the center of the door, an environmental sensor on the outer side of the body, a sensing component on the inner side of the body, a dual-chamber fire extinguishing assembly at the top of the inner wall of the body, isolation components in the center of both the left and right walls of the body, and a pressure relief assembly in the center of the outer side of the body. This invention features a dual-chamber fire extinguishing assembly at the top of the body, dividing the limited space into two independent chambers through a partition inside the cylinder. Combined with a pressurization component and a first diversion pipe at the bottom, it satisfies the system's need for early cooling and blocking, followed by a step-by-step flooding fire suppression system, while avoiding the excessive space occupation of the internal space of traditional dual-cylinder solutions.
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