A thread-guided rotary jetting device for lifting of pile boots of offshore drilling platform
An offshore drilling platform and thread technology, which is applied to valve devices, valve operation/release devices, sheet pile walls, etc., can solve the problem of inability to achieve rapid jet flushing effect, small jet flushing area, and inability to quickly remove seabed sediment Adsorption and other problems, to shorten the transfer cycle of the work area, improve the spray effect, and speed up the lifting effect.
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[0013] The working process of the screw-guided rotary jetting device for assisting lifting of pile boots of marine drilling platform of the present invention is as follows:
[0014] The high-pressure water enters from the interface pipe and pushes the valve core down, and the valve core links the annular piston down. The outer thread sleeve at the lower part of the annular piston and the inner thread sleeve at the upper end of the end cap force the ring shape under the guidance of the thread protrusion and the thread groove The piston rotates in the direction of the thread. During the downward movement of the annular piston, the horizontal injection hole at the lower end of the valve stem extends downwards from the end cover, and the horizontal injection hole is opened to perform spray flushing and cleaning operations. When the high-pressure water of the mouthpiece is closed, the ring piston is reset under the action of the return spring, and the ring piston is reset under the gui...
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