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A rotary-type rotary spray device for lifting of pile boots of an offshore drilling platform

An offshore drilling platform, turntable technology, applied in the valve device, valve operation/release device, lift valve and other directions, can solve the problem that the seabed sediment adsorption cannot be quickly released, the rapid jet flushing effect cannot be achieved, and the jet flushing area 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: 2015-11-04
胡文超
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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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  • A rotary-type rotary spray device for lifting of pile boots of an offshore drilling platform
  • A rotary-type rotary spray device for lifting of pile boots of an offshore drilling platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] The working process of the rotating disk type rotary spraying device of the present invention is as follows:

[0017] 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 , the high-pressure water enters the water outlet channel in the center of the valve stem and sprays out from the water outlet hole at the lower end into the annular groove of the rotary spray disc. The outer circle is sprayed tangentially, and the rotary spray disc is rotated under the action of the jet water, and the spray surface is disc-shaped to wash away the surrounding sludge, and the sludge is released from the wrapping and adsorption of the spud can. At the same time, the spool is driven to rotate...

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Abstract

The invention provides a rotating disk type rotary spraying device for accelerating lifting of a pile shoe of an offshore drilling platform. The rotating disk type rotary spraying device structurally comprises a shell, an annular piston, a valve element, a valve rod sleeve, a rotary spraying disk, an end cover and a reset spring, wherein a valve cavity is formed in the middle of the shell, and the upper end of the shell is provided with a connector pipe; a pipe cavity of the connector pipe is communicated with the valve cavity; the lower end of the valve cavity is provided with the end cover; the center of the end cover is perpendicularly provided with a through hole; 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 sleeve is inserted in the through hole in the center of the end cover and is connected with the through hole in the center of the end cover in a sliding mode; the edge of the top of the valve element is provided with an annular groove, a sealing ring is embedded in the annular groove, and the sealing ring is connected with a valve port at the lower end of the inner cavity of the connector 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 rotary disc type rotary spraying 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 to provide a rotary disc type jet spray 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D13/08F16K1/00F16K1/36F16K31/12
Inventor 胡文超
Owner 胡文超