High pressure difference encapsulation tube

The utility model relates to a sealing rubber barrel structure capable of bearing high differential pressure, which comprises a righting rubber barrel and a sealing rubber barrel, wherein, a spring is additionally arranged in the interior of one end of the righting rubber barrel. By means of the spr...

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Bibliographic Details
Main Authors GONGMING JI, MINXUAN WANG, SHEXIA DONG
Format Patent
LanguageEnglish
Published 27.06.2001
Edition7
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:The utility model relates to a sealing rubber barrel structure capable of bearing high differential pressure, which comprises a righting rubber barrel and a sealing rubber barrel, wherein, a spring is additionally arranged in the interior of one end of the righting rubber barrel. By means of the spring at the end part, the phenomenon of humeral projection of the rubber barrel is effectively prevented from happening at the time of high differential pressure. The problems that the rubber barrels are damaged because of humeral projection and the sealing effect is influenced are avoided. Meanwhile, at the time of unsealing, the utility model can help the rubber barrels to recover to the original state, and is convenient for unsealing. In addition, the righting rubber barrel and the sealing rubber barrel adopt conical surface cooperation. The utility model has compact structure and reasonable force receiving, and improves the capability of bearing high differential pressure for the sealing rubber barrel structure.
Bibliography:Application Number: CN2000214146U