High-power draught fan single pile sleeve cage assembly process

Abstract

The invention discloses a high-power draught fan single pile sleeve cage assembly process. The high-power draught fan single pile sleeve cage assembly process comprises the steps that ring beam pairing, welding and trepanning are carried out, wherein cross-shaped center lines are marked, a circle center is fixed, the positions of an inner side plate and an outer side plate of a ring beam are marked, the positions of swallow tail buckles are determined, paired ring beams are folded and welded, lines are marked at the position of the cross-shaped center lines of the ring beams for labeling, and a hole penetrating a supporting pipe is formed; and an overall sleeve cage is folded, paired and welded, wherein a working table is adjusted, the cross-shaped center lines are marked, the circle center is fixed, the ring beams are placed, the position of the supporting pipe is corrected so as to be vertical to a working platform, the ring beams are subject to tack-welding at the supporting pipe position where labeling is made, and the supporting pipe and the lower surface of the ring beams are subject to spot welding fixing. The high-power draught fan single pile sleeve cage assembly process has the beneficial effects that disconnected and jumped type symmetrical welding is carried out, and welding deformation is reduced; and strictly according to the drawing requirement, the position accuracy of the eight swallow tail buckles is guaranteed to meet the requirement, and the sleeve cage marine installation risk is reduced.

Description

technical field [0001] The invention relates to the field of an assembly process of a fan single-pile cage, in particular to an assembly process of a high-power fan single-pile cage. Background technique [0002] In the offshore wind power industry, the cage of the single-pile wind turbine body is generally placed directly on the outer corbel of the single-pile wind turbine body, and only three dovetail buckles are used as positioning points at most. The cage is a steel structure, which is spliced ​​and welded by countless weld seams. If there are weld seams, there must be welding stress, and if there is welding stress, there must be welding deformation. Moreover, there is currently no preventive measure for the welding deformation caused by this welding stress. prevent it from deforming. When the cage is divided into upper and lower layers with 8 dovetail buttons, once the cage is deformed, the probability that the upper and lower layers of 8 dovetail buttons can be insert...

AI Technical Summary

Problems solved by technology

At the offshore wind turbine site, because the position accuracy of the dovetail buckle of the cage does not meet the requirements, it cannot be installed, and it cannot be put down. It takes manpower, material resources, and financial resources to lift it up. Moreover, the sea is no different from the land. Its operating time follows the tide. Once it is missed The tide will affect the construction period and cause great losses

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