基于同位素示踪法的环保型GIS泄漏检测技术研究

Study on Leakage Detection of Environment friendly GIS Based on Isotope Tracing Technology

气体绝缘开关设备(Gas Insulated Switchgear,GIS)是维持电网安全运营和保障国计民生健康发展的重要设备。SF_(6)气体因其优异的绝缘性质与灭弧性质,是传统GIS设备绝缘介质。然而,随着资源短缺、能源危机与环境污染的日益严重,由于SF_(6)气体的高污染性与高温室效应,其将逐步被环保性更强的洁净空气取代,由于洁净空气与大气组分与性质几乎一样,这对GIS设备泄漏检测带来新的挑战。本论文首先开展基于同位素示踪法的环保型GIS设备泄漏检测理论研究;然后,结合市售同位素质谱仪参数,研究基于同位素示踪法的环保型GIS设备泄漏检测技术与装置设计;最后,针对He、CO_(2)、^(18)O、^(15)N等几种示踪剂,研究其对洁净空气作为绝缘介质的影响,进而确定高丰度示踪剂洁净空气的电力可靠性。通过以上研究,本研究可为基于同位素示踪技术的洁净空气GIS设备泄漏在线监测智慧系统提供数据基础与技术支撑。

Gas Insulated Switchgear(GIS)plays a crucial role in maintaining the safe operation of the power grid and supporting the sustainable development of the national economy and society.SF_(6),known for its outstanding insulation and arc-quenching properties,has traditionally been the preferred insulation medium for GIS equipment.However,the increasing scarcity of resources,energy crises,and escalating environmental concerns have prompted a shift towards cleaner alternatives due to the high pollution and greenhouse gas emissions associated with SF_(6).Transitioning to environmentally friendly clean air presents new challenges for detecting leaks in GIS equipment as clean air closely resembles atmospheric conditions.This study utilizes gases and elements like He,CO_(2),^(18)O,and^(15)N as tracers to assess their impact on the insulation performance of clean air GIS equipment.Furthermore,it delves into the theoretical framework and design considerations for leakage detection in clean air GIS equipment using isotope tracing technology,laying the groundwork for the development of an advanced online monitoring system for detecting GIS leaks in clean air environments.