Lower vortex hole driving rotary spraying device for ocean drilling platform pile shoe assistant lifting

Abstract

The invention provides a lower vortex hole driving rotary spraying device for ocean drilling platform pile shoe assistant lifting. The device comprises a shell body, a valve core, a valve rod, an end cover and a reset spring, wherein a valve cavity is arranged in the middle of the shell body, a connection pipe is arranged at the upper end of the shell body, the pipe cavity of the connection pipe is communicated with the valve cavity, the end cover is in thread connection onto the lower end of the valve cavity, a through hole is vertically formed in the center of the end cover, a valve structure is formed by connecting the top edge of the valve core and the lower pipe mouth of the connection pipe, the valve rod is arranged at the lower end of the valve core, a blind hole is formed in the center of the valve rod, a water inlet hole is horizontally formed in the middle of the valve core, a rotary spraying hole is formed in the lower end of the valve rod, the rotary spraying hole is communicated with the water inlet hole through the blind hole, the outer circle of the lower end of the valve rod penetrates through the vertical through hole in the center of the end cover, the reset spring sleeves the outer circle of the valve rod, the lower end of the reset spring is connected with the upper end of the end cover, and the upper end of the reset spring is connected with a thrust bearing at the bottom of the valve core. The valve core rotates automatically during spraying and washing, the point-line spraying and washing in the prior art is changed into the rotary surface spraying and washing, the spraying and washing area is increased, and the spraying and washing effect is improved.

Description

technical field [0001] The invention relates to the technical field of offshore oil drilling platforms, in particular to a lower vortex hole driven swirling device for spud shoe lifting of the offshore drilling platform. Background technique [0002] The direction of the water column sprayed out by the jetting head of the jetting device in the prior art is fixed, so the action range of the jetting sediment is distributed in a point line, and the jetting area is small, and it is impossible to quickly remove the adsorption of the seabed sediment on the outer surface of the spud can. Can not reach the best rapid spraying and boosting effect. Contents of the invention [0003] The technical task of the present invention is to solve the deficiencies of the prior art, and provide a lower vortex hole-driven swirling device for spud shoe lifting of an offshore drilling platform. [0004] The technical solution of the present invention is realized in the following manner. The rota...

AI Technical Summary

Problems solved by technology

[0002] The direction of the water column ejected by the jetting head of the jetting device in the prior art is fixed, so the action range of the jetting sediment is distributed in a point line, and the jetting area is small, and it is impossible to quickly remove the adsorption of the seabed sediment to the outer surface of the spud can. Can not achieve the best rapid spray boost effect

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