Segmented Support Frame for Waste Steam Generator Cutting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for cutting and processing waste steam generators in nuclear power plants are inefficient, requiring extensive time and increasing worker exposure to radioactivity due to the large size and complexity of the cutting devices, which limits the ability to minimize secondary waste generation and shorten the process time.
Innovation Solution
A treatment apparatus with a support frame divided into multiple portions, coupled to the outer peripheral surface of the waste steam generator, featuring a circular cutter system with overlapping cutting paths and an electric supply module for efficient power distribution, allowing for rapid installation and operation while minimizing exposure to radioactivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conventional band saw device is enlarged to cut large waste steam generators, then the cutting capability is improved, but the device complexity and installation time increase significantly
Solution Approach 1:
The support frame is divided into a plurality of portions that can be separately installed and then coupled together. This segmentation allows the device to handle large waste steam generators without requiring a single oversized complex structure, thereby reducing overall device complexity while maintaining cutting capability.
2Ease of operation
If a conventional band saw device is used to cut waste steam generators, then the cutting function is provided, but the installation time and worker exposure time to radioactivity increase
Solution Approach 1:
By dividing the support frame into multiple portions that can be independently handled and installed, the overall installation time is reduced. This segmentation enables faster assembly compared to installing a single large conventional band saw device, thereby reducing worker exposure time to radioactivity.
Solution Approach 2:
The support frame portions are designed to be pre-fabricated and ready for assembly, allowing rapid installation without extensive on-site preparation. This preliminary preparation of components accelerates the installation process and minimizes the time workers spend in radioactive environments.
3Strength
If the support frame is made as a single integrated structure, then the structural strength is improved, but the installation time and difficulty increase
Solution Approach 1:
The support frame is segmented into multiple portions that are coupled together using coupling parts. This segmentation maintains structural strength through proper coupling mechanisms while significantly improving ease of installation, as the smaller portions can be more easily maneuvered and assembled compared to a single large integrated structure.
Solution Approach 2:
The divided support frame portions are designed to fit together in a nested or interlocking manner, where each portion integrates with the others to form a complete stable structure. This nesting approach ensures structural strength is maintained while facilitating easier assembly and installation.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed herein are a treatment apparatus and method for a waste steam generator, and an installation method of a treatment apparatus for a waste steam generator. The treatment apparatus includes a cutting part (100) for cutting a body (1) of a waste steam generator (10), a driving part (200) for driving the cutting part (100), and a support frame (300) for supporting the cutting part (100) and the driving part (200), wherein the support frame (300) is coupled to an outer peripheral surface of the body (1) of the waste steam generator (10) in a divided state, and the cutting part (100) is driven and cuts the body (1) in a state in which the support frame (300) is coupled to the outer peripheral surface of the body (1). Consequently, since the treatment apparatus is easily moved and installed, an installation time of the treatment apparatus may be shortened and an exposure time of a worker can be reduced.