Turbine driving rotary spraying device used for assisting in lifting marine drilling platform pile shoe

Abstract

The invention provides a turbine driving rotary spraying device used for assisting in lifting a marine drilling platform pile shoe. The device comprises a shell, a valve core, a valve rod, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell; an interface pipe is arranged on the upper end of the shell; a pipe cavity of the interface pipe is communicated with the valve cavity; the lower end of the valve cavity is connected with the end cover by threads; a through hole is vertically formed in the center of the end cover; the top edge of the valve core is connected with the lower pipe orifice of the interface pipe to form a valve structure; the valve rod is arranged on the lower end of the valve core; a blind hole is formed in the center of the valve rod; a turbine is arranged on the top of the valve core; a water inlet is formed in the middle of the valve core; a water spraying hole is formed in the lower end of the valve rod and is communicated with the water inlet hole by the blind hole; the excircle of the low end of the valve rod penetrates through the vertical through hole in the center of the end cover; the reset spring sleeves the excircle of the low end of the valve rod; the lower end of the reset spring is connected with the upper end of the end cover; the upper end of the reset spring is connected with a thrust bearing at the bottom of the valve core. According to the device, the valve core can automatically rotate in the spraying and flushing process, the point-line spraying and flushing in the prior art are changed into the rotating surface spraying and flushing, the spraying and flushing areas are enlarged, and the spraying and flushing effects are improved.

Description

technical field [0001] The invention relates to the technical field of offshore oil drilling platforms, in particular to a turbine-driven swirling device for lifting boots of offshore drilling platforms. 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 turbine-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 rotary spray device of the pres...

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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