An upper turbine and lower vortex hole driven swirling device for spud shoe lifting on an offshore drilling platform
A technology for offshore drilling platforms and spud boots, which is applied in the direction of valve devices, valve operation/release devices, valve lifts, etc. It can solve the problem of inability to quickly remove the adsorption of seabed sediment, small spray area, and inability to achieve rapid spray lift. Effect and other issues, to achieve the effect of shortening the transfer cycle of the work area, improving the effect of spraying and accelerating the lifting
Inactive Publication Date: 2015-12-23
庞维晓
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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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[0015] The spray flushing device working process of the present invention is as follows:
[0016] High-pressure water enters from the interface pipe, pushes the rotary valve core to move down, and the rotary valve core moves down in conjunction with the annular piston. During the downward movement of the annular piston, the high-pressure water drives the turbine blades to rotate, and at the same time drives the rotary valve core to rotate as a whole. The downward movement drives the spray punch at the lower end of the valve stem to extend downwards from the end cover, and the horizontal spray hole is opened to implement spray flushing and cleaning operations. When the high-pressure water of the interface pipe is closed, the annular piston resets under the action of the return spring, and the spray punch at the lower end of the ring valve stem retracts upwards into the middle hole of the end cover, the horizontal spray hole is closed, and the spray flushing and cleaning operatio...
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The present invention provides an upper turbine and lower vortex hole-driven swirling device for spud shoe lifting of an offshore drilling platform. There is a valve chamber in the middle of the housing, and an interface pipe is provided on the upper end of the housing. The lumen of the interface pipe communicates with the valve chamber. The lower end of the valve chamber is connected with an end cover through threads. An annular piston 4 is arranged in the middle of the ring piston, and a convex ring is arranged in the middle hole of the annular piston. The rotary valve core is composed of a turbine head, a valve stem and a spray punch. The longitudinal section of the rotary valve core is T-shaped. The turbine head is set on the top of the valve stem, and the spray punch is set on the lower end of the valve stem. A horizontal through hole, a turbine blade is arranged above the horizontal through hole, a vertical through hole is opened in the center of the valve stem to communicate with the horizontal through hole on the turbine head, and the valve stem is inserted into the valve stem sleeve and slidably connected with the valve stem sleeve.
Description
technical field [0001] The invention relates to the technical field of offshore oil drilling platforms, in particular to an upper turbine and 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 an upper turbine and lower vortex hole driven swirling device for spud shoe lifting of an offshore drilling platform. [0004] The technical solution of the present invention is real...
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IPC IPC(8): E02D13/08F16K1/00F16K1/36F16K31/12
Inventor 庞维晓
Owner 庞维晓