【摘 要】
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水轮发电机组的防飞逸问题是水轮机运行保护的重要课题之一。解决这个问题的办法,多年来都是采用在进水口装设快速闸门或设置蝶阀、球阀等装置,但这套结构物将较大地增加电
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水轮发电机组的防飞逸问题是水轮机运行保护的重要课题之一。解决这个问题的办法,多年来都是采用在进水口装设快速闸门或设置蝶阀、球阀等装置,但这套结构物将较大地增加电站的总投资。另一种设想是采用导叶自关闭来防止机组飞逸,但目前导叶的力特性还不能满足导叶在各种开度下实现自关闭的有
Turbine anti-runaway problem is one of the important issues of turbine operation and protection. The solution to this problem has been to adopt quick gates or butterfly valves and ball valves at the water inlet for many years. However, this structure will greatly increase the total investment of the power station. Another idea is to use the guide vane to prevent self-closing units to escape, but the current guide vane’s force characteristics can not meet the guide vane in a variety of degrees to achieve self-closing have
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