Tower Dismantling Using Internal Jack Support
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Solution Overview
Problem
The conventional dismantling method of tower-type wind power generation systems using large cranes is costly, requires extensive space, and frequently stops due to strong winds, making the process inefficient and time-consuming.
Innovation Solution
A dismantling method that involves building an inner column within the tower body, using a jack and abutting support member to support the upward-tapering part, and employing a work bench for cutting and removing sections of the tower body without the need for scaffolding or large cranes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large crane is used for dismantling the tower body, then the dismantling operation can be performed, but the cost increases and the operation frequently stops due to strong wind
Solution Approach 1:
The invention extracts the dismantling operation from the conventional external crane-based method and relocates it inside the tower body. The jack is positioned within the tower to support the upward-tapering part from the interior, eliminating the need for external crane infrastructure and enabling continuous operation regardless of external wind conditions.
Solution Approach 2:
The dismantling system is nested within the tower body structure itself. The jack and inner column are positioned inside the tower's internal cavity, utilizing the existing structural space. This nesting approach eliminates the need for external scaffolding and crane operations, reducing device complexity and improving operational reliability.
2Ease of manufacture
If scaffolding is built around the tower for dismantling, then the tower body can be dismantled, but the construction period increases and the cost increases
Solution Approach 1:
Instead of building scaffolding from the outside to access the tower for dismantling, the invention inverts the approach by accessing the tower from the inside. The jack and cutting equipment are positioned within the internal cavity, allowing dismantling operations to proceed from the interior without external scaffolding infrastructure.
Solution Approach 2:
The tower body's own internal cavity is utilized as the working space for dismantling operations. The structure serves itself by providing the necessary internal space for positioning the jack and performing cutting operations, eliminating the need for external scaffolding and reducing construction time.
3Ease of operation
If a large crane is transported to the vicinity for dismantling, then the dismantling operation can be performed, but the transportation cost and time increase
Solution Approach 1:
The invention extracts the support function from the external crane and relocates it to a compact jack positioned inside the tower body. This extraction eliminates the need for transporting large crane equipment to the site, significantly reducing transportation time and cost while maintaining the essential support capability needed for dismantling.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method allows for the stable dismantling of tower-type wind power generation systems without the need for large cranes or scaffolding, reducing costs and shortening the dismantling period by preventing frequent stops and ensuring a stable work environment.
Implementation Method 1
applying an upward supporting force equal to or larger than a load of the entire system above the upward-tapering part to the upward-tapering part by a jack provided in an upper part of the inner column
Data Source
AI summary
Provided is a dismantling method of a tower-type wind power generation system in which scaffolding is not required around a tower body. After climbing on a work bench set outside an outer wall of a tower body and removing a lower end part of an upward-tapering part in an upper end part of the tower body over the entire periphery of the tower body, the tower body is removed from an uppermost part of a cylindrical part of the tower body below the upward-tapering part to dismantle the tower body from the top. The remaining upward-tapering part of the tower body is supported by a jack provided in an inner column while being lowered, along with the dismantling, into an internal cavity of the cylindrical part of the tower body and is placed on a placement protrusion provided on an inner wall of the tower body.