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高落差垂直竖井GIL隔室设置主要考虑因素是压力差,隔室压力差可用气体静气柱理论计算。通过对工程设计研究和理论计算表明:纯SF6气体的隔室高度不宜超过250m,SF6混合气体压力差较小,对隔室高度影响较小;因压力差的影响,对高落差垂直竖井GIL应规定两个充气压力;考虑温度差是压力差的主要影响因素,应重视竖井通风设计。
High drop vertical shaft GIL compartment set the main consideration is the pressure difference, compartment pressure difference can be calculated using the gas static column theory. Through the engineering design and theoretical calculations, it is shown that the height of the compartment of pure SF6 gas should not exceed 250m, the pressure difference of the SF6 gas mixture is small, and the influence on the height of the compartment is small. Due to the influence of pressure difference, Prescribed two inflation pressure; consider the temperature difference is the main factor of pressure difference, should pay attention to the shaft ventilation design.