A sit-off bottom support rod device and operation method for deep-sea submersibles

Abstract

A sit-off-bottom support rod device and an operation method for a deep-sea submersible, comprising a pre-embedded pile, a limit boss is welded on the inner bottom surface of the pre-embedded pile, and a bottom-mounted support rod is inserted into the position above the limit boss. , the seat bottom support rod is divided into a lower half and an upper half, the lower part is a hollow thin-walled structure, and the upper half is a solid structure. The upper part of the pipe is connected with the upper half through the upper tightening ring, and the lower part of the high-strength reinforced hose is connected with the lower half through the lower tightening ring, which is located outside the high-strength reinforced hose and is connected between the upper tightening ring and the lower part. A plurality of steel cables are welded between the fastening rings; a partition is formed at the bottom of the upper half of the bottom support rod, a connecting rod is welded at the center of the bottom surface of the partition, and a plurality of thorn support rods are arranged in the circumferential direction of the connecting rod The outer wall surface of the bottom seat support rod at the position corresponding to the puncture needle support rod is provided with a plurality of water flow holes, which is convenient and reliable to work.

Description

technical field [0001] The invention relates to the technical field of auxiliary equipment for manned submersibles, in particular to a sit-off bottom support rod device and an operation method for deep-sea submersibles. Background technique [0002] When the deep-sea submersible sits on the bottom for a long time, in order to avoid the underwater drift caused by the current disturbance, the seabed pre-buried pile can be used, and the submersible extends the limit rod and inserts the pre-buried pile to realize it. However, the maneuvering response of large submersibles is slow, and the hydrodynamic performance is complex under the condition of sitting on the bottom, which leads to low control precision, which brings great difficulty to accurately inserting the strut into the pre-embedded pile hole. Therefore, the diameter of the cylindrical pre-buried pile will be slightly larger than the diameter of the strut, resulting in less hydrodynamic resistance on the strut during the...

AI Technical Summary

Problems solved by technology

[0003] Inaccurate control of the horizontal position of the submersible will lead to deflection of the struts, resulting in side wall friction in mild cases, and breakage of the struts in severe cases

When the displacement of the submersible is large, the small speed bottoming will also cause the strut to be greatly impacted, which will bring serious hidden dangers to the structural safety

When the pole is inserted into the pre-buried pile, the sediment is easy to accumulate at the bottom of the pre-buried pile, which increases the adsorption force from the bottom, making it difficult to float up and pull out the pole

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