Detachable vane of wind power generating set and installing and detaching method thereof

Abstract

The invention relates to a detachable vane of a wind power generating set and an installing and detaching method thereof. The vane is divided into at least two parts, wherein the at least two parts comprise at least one vane bottom section and at least one vane tip section; the end part of the vane bottom section is in detachable connection with the vane tip section in the length direction; a longitudinal beam slot is formed in the vane bottom section; a longitudinal beam is arranged on the vane tip section; a pull rope hole is formed in the longitudinal beam; and when the vane tip section is hung, the longitudinal beam of the vane tip section is inserted into the longitudinal beam slot of the vane bottom section and is locked in a matching way. The installing and detaching method of the detachable vane of the wind power generating set comprises the following steps: providing a hub for the wind power generating set; connecting the bottom of the vane bottom section closest to the hub with the hub; arranging a winding machine inside the hub; connecting a pull rope of the winding machine to the pull rope hole of the longitudinal beam; and winding or unwinding the pull rope of the winding machine to correspondingly lift or drop the vane tip section. The vane is divided into multiple detachable sections, including the vane bottom section and the vane tip section, and before a typhoon, the vane tip section is detached, so that the strong wind resisting capability of the vane in the working condition of the typhoon can be greatly improved.

Description

technical field [0001] The invention relates to a detachable blade of a wind power generating set and an assembly and disassembly method thereof. Background technique [0002] The southeast coast of my country has a relatively developed economy, consumes a lot of electricity, and has almost no coal resources. It is very difficult to rely on fossil energy to solve the problem of energy demand. The southeast coast and its islands are rich in wind power resources, and have the basic conditions for the development of wind power generation and a strong desire for development. However, this area is hit by typhoons every summer, and every time a typhoon lands, there will be a strong wind process in the coastal areas. As the global climate warms, the intensity of typhoons also tends to increase year by year. The strong wind and the violent rotation from the center of the typhoon will increase the turbulence intensity and turbulent energy exponentially, which will cause great damage...

AI Technical Summary

Problems solved by technology

[0005] The biggest problem in this prior application is that the driving and implementing devices in the folding mechanism must be installed inside the blades. During the process of driving the folding mechanism to fold the blades, the required driving force is very large. In order to ensure that the folding mechanism can be smoothly and reliably work, the volume of the folding mechanism must be very large, and the weight of the folding mechanism will also increase accordingly, which not only fundamentally changes the original mass and center of gravity of the blade, but also has a great impact on the aerodynamic performance of the blade

Even if the blades are specially designed for it, the reliability of the folding mechanism and locking device is difficult to guarantee. As long as the folding mechanism and locking device of any one of the blades fails, a vicious accident may occur

In addition, when the blades are folded, the torrential rain accompanying the typhoon will pour into the cavity of at least one of the blades. After a large amount of rainwater is injected, it will inevitably cause extremely serious damage to the electrical control system inside the wind rotor, and even cause a fire in the unit. , overturning and other serious consequences

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