Double-rotation spraying and flushing device used for assisting in lifting marine drilling platform pile shoe

An offshore drilling platform, dual-rotation technology, which is applied in the direction of jetting device, spraying device with movable outlet, valve device, etc. Small and other problems, to achieve the effect of shortening the transfer cycle of the work area, speeding up the lifting, and improving the spray effect

Inactive Publication Date: 2014-08-13
齐宝兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Double-rotation spraying and flushing device used for assisting in lifting marine drilling platform pile shoe
  • Double-rotation spraying and flushing device used for assisting in lifting marine drilling platform pile shoe
  • Double-rotation spraying and flushing device used for assisting in lifting marine drilling platform pile shoe

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Effect test

Embodiment

[0019] The spray flushing device working process of the present invention is as follows:

[0020] High-pressure water enters from the interface pipe, pushes the valve core to move down, and the valve core moves down in conjunction with the annular piston. During the process of the valve core moving down, the valve stem moves down to push the rotary nozzle plate away from the concave hole at the lower end of the end cover, exposing the turbojet hole , high-pressure water enters the water inlet hole of the valve core from the valve cavity and impacts the turbine blade in the water inlet hole to push the valve core to rotate, high-pressure water enters the water outlet channel in the center of the valve stem from the water inlet hole, and then sprays out from the water outlet hole at the lower end into the rotary valve. The annular groove of the spray plate, the annular groove distributes the water to the vortex spray hole on the vortex spray plate, and the vortex spray hole spray...

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Abstract

The invention provides a double-rotation spraying and flushing device used for assisting in lifting a marine drilling platform pile shoe. The double-rotation spraying and flushing device structurally comprises a shell, an annular piston, a valve core, a valve rod sleeve, a rotary spraying disc, 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; the pipe cavity of the interface pipe is communicated with the valve cavity; the end cover is arranged on the lower end of the valve cavity; a through hole is vertically formed in the center of the end cover; the annular piston is arranged in the middle of the valve cavity; an inner hole of the annular piston is connected with the upper end of the valve rod sleeve; the lower end of the valve rod is inserted into the central through hole of the end cover and is in sliding connection with the central through hole; an annular groove is formed in the edge of the top of the valve core; a sealing ring is embedded in the annular groove; the sealing ring is connected with a valve opening in the lower end of an inner cavity of the interface pipe to form a valve structure.

Description

technical field [0001] The invention relates to the technical field of offshore oil drilling platforms, in particular to a double-rotating spraying device for spud shoes 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 double-rotating spraying 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 spraying device of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K1/36F16K31/12E02D13/08
CPCB05B3/0409E02B17/0034E02B2017/0078F16K3/262
Inventor 齐宝兰
Owner 齐宝兰
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