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    • 6. 发明公开
    • FEED-THROUGH AND BUSHING
    • DURCHFÜHRUNGUND BUCHSE
    • EP2031288A4
    • 2009-09-09
    • EP06766463
    • 2006-06-07
    • FURUKAWA ELECTRIC IND CABLE CO
    • SASAKI MASAYUKI
    • F16L5/00F16L59/14F17D5/00H02G3/10
    • F17C13/00F16L5/10F16L59/141F17C2221/033F17C2221/035F17C2223/0153F17C2223/0161F17C2223/033F17C2227/0135F17C2250/043F17C2250/0478F17C2260/038H02G3/22H02G15/34
    • [PROBLEMS] To provide a feed-through for feeding electric power to a submerged pump installed in a tank for cryogenic liquefied gases such as LNG and LPG. The feed-through has a simple structure and can check for leakage of the gases and air at low cost. [MEANS FOR SOLVING THE PROBLEMS] In the feed-through (50), a bushing (16) made of an insulating material is inserted in the bushing insertion hole (14) of a flange (12), and a conductor (18) is inserted in the hollow part of the bushing. A gap between the flange and each end of the bushing insertion hole and a gap between each end of the bushing and the conductor are sealed airtight by seal members (20, 22, 24, 26). A through-hole (52) is formed in the wall of the bushing, and a space part (54) communicating with the through-hole is formed in the flange. The pressure in the space part of the flange is detected by a pressure detector (56).
    • [问题]提供一种用于向安装在液化天然气和液化石油气等低温液化气体罐内的潜水泵供电的馈通。 馈通结构简单,可以低成本检查气体和空气的泄漏。 用于解决问题的手段在馈通件50中,由绝缘材料制成的套管16插入凸缘12的套管插入孔14中,并且导体18是 插入套管的中空部分。 凸缘与衬套插入孔的每个端部之间的间隙以及衬套的每个端部与导体之间的间隙由密封构件(20,22,24,26)气密密封。 通孔(52)形成在套管的壁中,并且在通孔中形成与通孔连通的空间部分(54)。 法兰的空间部分的压力由压力检测器(56)检测。