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
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[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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