連続運転可能な大流量微小差圧吸気型火山灰除去装置の開発
Development of large flow rate micro differential pressure intake type volcanic ash removal device capable of continuous operation
著者:
伊藤 康隆 田口 優 伊藤 健太郎 今村 瑞 砂川 雅志 （北海道電力） 高木 祐 長澤 裕之 （HKテクノロジー） 伊藤 克美 庄子 哲雄 （東北大）
発刊日:
公開日:
cold region specificationshigh ash removal efficiencylarge volumetric flow ratesemi-maintenance freesmall differential pressure air intakevolcanic ash removal device
概要
At nuclear power plants, measures are required for emergency power supply equipment under the condition that high-concentration volcanic ash will continue to fall on the order of several g / m3 for 24 hours. A pre-filter is installed as the main countermeasure, but a lot of manpower is required in anticipation of clogging. Therefore, it is desired to develop a device with a capability to stably remove a large amount of high-concentration volcanic ash from intake air for a long period. In this work, a volcanic ash removal device is designed and fabricated, and its long period stable operational performance is demonstrated in terms of high ash removal efficiency, semi-maintenance free and small pressure drop with a large volumetric air intake capability.
