A C4F7N environment-friendly insulation gas intelligent gas supplementing system and high-precision leakage detection sensor
By designing an intelligent gas replenishment system for C4F7N environmentally friendly insulating gas and a high-precision leak detection sensor, the problems of low gas replenishment accuracy, weak ratio correction capability, and disconnect between leak detection and gas replenishment of C4F7N mixed gas have been solved. This system achieves high-precision leak detection, intelligent ratio correction, and constant-temperature gas replenishment, making it suitable for the operation and maintenance of high-voltage electrical equipment.
Patent Information
- Application Number
- CN202610549254.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the gas replenishment device for C4F7N mixed gas lacks a dedicated design, has insufficient flow control accuracy, large errors due to temperature fluctuations, and is disconnected from leakage detection and gas replenishment, making it impossible to achieve precise ratio adjustment. Furthermore, it does not meet the international standard for environmentally friendly insulating gas treatment specifications.
A C4F7N environmentally friendly insulating gas intelligent gas replenishment system was designed, including: a C4F7N environmentally friendly insulating gas intelligent gas replenishment system and a matching high-precision leakage detection sensor. It adopts an infrared optical detection cavity, a dual-optical-path thermal conductivity detection module, a constant temperature control module, a signal processing unit, and a portable sniffing gas path to achieve quantitative detection of leakage concentration at the ppm level and multi-component concentration analysis. Combined with a constant temperature gas mixing unit and an intelligent measurement and control unit, it achieves flow control and temperature-pressure correction, meeting the international standard for full-process closed-loop management.
It achieves accurate leak detection and ratio correction of C4F7N mixed gas, constant temperature and high-precision gas replenishment, meets the mixing accuracy of 10 ppm and the gas filling accuracy of 0.1 kPa, adapts to the detection stability in complex environments, ensures stable equipment insulation performance, and is suitable for the operation and maintenance needs of high voltage electrical equipment such as GIS and GIL.