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

Abstract

The invention provides an upper vortex hole driving rotary spraying device for ocean drilling platform pile shoe assistant lifting. The structure comprises a shell body, 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 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 lower end of the valve core is provided with the valve rod, a blind hole is formed in the center of the valve rod, a vortex water inlet hole is horizontally formed in the middle of the upper part of the valve core, a spraying and washing hole is formed in the lower end of the valve rod, the spraying and washing hole is communicated with the vortex 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 rotating surface spraying and washing, the spraying and washing area is increased, the spraying and washing effect is improved, the pile shoe lifting is accelerated, and the work area transferring cycle of a petrol platform is shortened.

Description

Technical field [0001] The present invention involves the technology field of maritime petroleum drilling platforms. Specifically, it is a marine drilling platform pile boots. Background technique [0002] The direction of the water column sprayed by the existing technology of the spray rushor is fixed, so the scope of the spraying of sediment is distributed, and the spray area is small.The best fast spraying effect cannot be achieved. Invention content [0003] The technical task of the present invention is to solve the lack of existing technology, and provide a marine drilling platform pile boots to help the upper vortex driving rotary and spray device. [0004] The technical solution of the present invention is implemented in the following way. The structure of the invention includes the structure, the valve core, the valve stem, the end cover, and the reset spring. Among themThere is an interface tube, the lumen of the interface tube is connected to the valve cavity.After th...

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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