电气技术2026，Vol.27Issue(6)：54-59,6.
潮热地区变电站10 kV配电装置室凝露机理分析与综合防治
Mechanism analysis and integrated prevention of condensation in 10 kV distribution equipment room of substations in hot-humid regions
张俊康 1沈谢林 1杨冬明 1张少莹 1郑昕泽1
作者信息
- 1. 国网泉州供电公司,福建 泉州 362000
- 折叠
摘要
Abstract
In response to the partial discharge and metal component corrosion issues in the busbar bridge of a 10 kV distribution equipment room at a 220 kV substation in Quanzhou,Fujian,this study reveals the fundamental mechanism of condensation formation through field testing and theoretical analysis.Research indicates that inadequate building sealing coupled with deficient ventilation control creates thermal stack effect-driven airflow between vertically adjacent spaces,causing moisture-laden hot air to continuously contact and condense on cooler equipment surfaces.The heat and mass transfer process is analyzed based on humid air thermodynamics,and the inevitability of condensation is quantitatively verified through dew point calculation.An integrated solution is proposed,featuring"airtight sealing as the foundation,coordinated temperature-humidity control as the core,and intelligent monitoring as the safeguard".Precise management of the environmental dew point is achieved through building airtightness improvements and coordinated operation of air conditioning and dehumidifiers.Engineering applications demonstrate that this approach effectively eliminates condensation and discharge risks,maintaining post-treatment room relative humidity stably within(50±5)%,providing a reliable solution for moisture prevention in substation design and operation within hot-humid regions.关键词
变电站/凝露/热力烟囱效应/传热传质/露点温度/综合治理Key words
substation/condensation/thermal stack effect/heat and mass transfer/dew point temperature/integrated prevention and control引用本文复制引用
张俊康,沈谢林,杨冬明,张少莹,郑昕泽..潮热地区变电站10 kV配电装置室凝露机理分析与综合防治[J].电气技术,2026,27(6):54-59,6.
