Abstract
The transportation of heavy equipment in nuclear engineering has always been the focus of engineers, especially those transfer devices with the characteristics of small geometric size and heavy load. According to this kind of compact heavy-load transfer device and its engineering tasks, the core problems caused by excessive vertical and horizontal forces in the design process were analyzed. By introducing the theory of inventive problem solving (TRIZ) design method, these problems were creatively solved by the contradiction theory and substance-field model in TRIZ, and an innovative design scheme of the compact heavy load-independent transfer device was obtained. Through the analysis of the design scheme and the stability and rapidity of its hydraulic system, some key parameters were determined. The power of the transfer device was all from the hydraulic system, and it can carry up to 300 t weight of reactor equipment, while its geometric size was only 1600 × 400 × 500 mm. It was of great significance to improve the efficiency of the nuclear engineering system.
Highlights
When heavy equipment such as reactor pressure vessel, steam generator, or pressurizer enters the nuclear island plant, it first needs to be lifted by a special transfer device, and pulled to the designated position by the towing mechanism in front of the device [1]
Due to the limitation of some narrow transportation operation space, the transfer system must be miniaturized and compacted. In this narrow heavy-duty transportation situation, in engineering, the double guide rails are usually used as the uniform stress structure and guide the path of the transfer system, and two or more transfer devices can be arranged on the guide rail, which works synchronously to complete the transportation task
The device needs to have the function to meet the constraint requirements, including high strength and small deformation, miniaturization, and reliability
Summary
When heavy equipment such as reactor pressure vessel, steam generator, or pressurizer enters the nuclear island plant, it first needs to be lifted by a special transfer device, and pulled to the designated position by the towing mechanism in front of the device [1]. Such devices are usually similar to flatcar with rails [2].
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