Abstract: A feed-through for feeding electric power to a submerged pump installed in a tank for cryogenic liquefied gases such as (LNG) liquefied natural gas and (LPG) liquefied propane gas. In the feed-through, a bushing made of an insulating material is inserted in the bushing insertion hole of a flange, and a conductor 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. A through-hole is formed in the wall of the bushing, and a space part 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.
Type:
Grant
Filed:
June 7, 2006
Date of Patent:
September 20, 2011
Assignee:
Furukawa Electric Industrial Cable Co., Ltd.
Abstract: A feed-through for feeding electric power to a submerged pump installed in a tank for cryogenic liquefied gases such as LNG and LPG. In the feed-through, a bushing made of an insulating material is inserted in the bushing insertion hole of a flange, and a conductor 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. A through-hole is formed in the wall of the bushing, and a space part 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.
Type:
Application
Filed:
June 7, 2006
Publication date:
July 1, 2010
Applicant:
FURUKAWA ELECTRIC INDUSTRIAL CABLE CO., LTD.