Water inputting and returning pipe joint of double-layer drill rod
A technology of double-layer drill pipe and water pipe joints, which is applied in the direction of pipes/pipe joints/fittings, pipes, pipe components, etc. It can solve the problems of time-consuming and labor-consuming, affect the progress of the project, and cumbersome procedures, so as to reduce procedures and save labor. , the effect of streamlining operations
Inactive Publication Date: 2015-07-01
舟山海川船舶机械有限公司
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Abstract
A water inputting and returning pipe joint of a double-layer drill rod comprises an inner pipe and an outer pipe, wherein the inner pipe and the outer pipe are sleeved internally and externally and are connected in a fastening manner. A first joint and a second joint are formed in the inner pipe and the outer pipe respectively in the side direction. The water inputting and returning pipe joint is characterized in that a first fastening flange and a sealing connecting part which are connected in a sealing manner are sequentially arranged at the top end of the inner pipe from bottom to top, and the first fastening flange is connected with the top end of the inner pipe in a fastening manner; and the sealing connecting part is formed by head-to-tail connection of at least two first connecting parts in sequence, and first mounting holes communicated with bolt holes in the first fastening flange are correspondingly formed in the first connecting parts. Compared with the prior art, the water inputting and returning pipe joint of the double-layer drill rod is simple in structure and convenient to clean.
Application Domain
Flanged jointsPipe elements +1
Technology Topic
PipingEngineering +2
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