Intermittent rotary jet flushing device for spud shoe lifting of 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, sheet pile walls, etc. Small area and other problems, to achieve the effect of shortening the transfer cycle of the work area, speeding up the lifting, and improving the effect of spraying
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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 down, and the valve core moves down in conjunction with the annular piston. Since the tips of the helical teeth at the upper and lower ends of the annular piston are not on the same line, when the annular helical teeth at the lower end of the annular piston and the upper part of the end cover After the lower annular helical tooth contacts, the annular helical tooth at the lower end of the annular piston slides to the tooth root along the slope of the lower annular helical tooth at the upper end of the end cover. During the sliding process, the valve core rotates, and the valve stem moves downward while turning Cover, the horizontal spray hole is opened to carry out spraying and cleaning operations. When the high-pressure water of the mouthpiece is closed, the annular piston resets under the action of the ret...
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