高寒地区充压伸缩式止水及其系统设计

Pressure-filled Telescopic Water Stop and its System Design in the High-cold Region

高水头弧形闸门的充压伸缩式止水已在若干工程得到成功应用,但由于高寒地区低温环境的特殊性,使其应用受到限制。吉林台一级水电站工程,将充压伸缩式止水通常采用的水介质改用压缩空气替代,方案可行、系统简单,易实现自动化控制,在高寒地区有实用价值。

It has been used successfully in many projects to choose the pressure-filled telescopic water stop type for high head redial gates. However, the specific of low temperature surroundings in the high-cold region makes its application limited. This paper introduces an improved plan through the sample in the Jilintai- Ⅰ Hydropower Station Project, which the water medium using usually in the pressure-filled telescopic water stop is replaced by compress air. The plan is very practical in the high-cold region, in which the system is simple and is easy to achieve automatic control.