3 of carbamide foam plastic. Foam isolator is fed into the inner cavity of the pipe in all marked places through a tube located vertically in the pipe at depth of 0.25–0.75 of the diameter of the pipe.;EFFECT: invention ensures prevention of spilled oil products remaining in the pipe due to reliable sealing of the empty pipe inner cavity in the specified sections.;1 cl, 3 dwg"/>
公开/公告号RU2718099C1
专利类型
公开/公告日2020-03-30
原文格式PDF
申请/专利权人 SUCHKOV SERGEJ ANATOLEVICH;
申请/专利号RU2019123559
申请日2019-07-26
分类号F16L1/028;F16L55/103;
国家 RU
入库时间 2022-08-21 11:02:35