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多功能防回流装置的研制与应用

China Petroleum and Chemical Standard and Quality(2016)

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Abstract
该装置将单流、过滤功能融合为一体,安装在注水井井口来水管线上,来水先经过滤后再进入单流阀内,顶起阀球经联接头注入井内.一方面能有效过滤回注污水中的大颗粒杂质,另一方面在注入压力波动时,能有效关闭井口,防止地层返吐,具有结构简单、承压高、清理方便等特点.
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