Development of an approach for the combined control of disassembly and postprocessing processes in plant dismantling

开发工厂拆除中拆卸和后处理过程的联合控制方法

• 批准号: 244566591
• 负责人: Dr.-Ing. Georg Ullmann
• 金额: --
• 依托单位: Institut für integrierte Produktion Hannover (IPH) gGmbH
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/244566591?language=en
• 关键词: Development; approach; combined; control; disassembly

Dismantling closed industrial plants of huge sizes and complexity (e. g. nuclear power plants or oil refineries) is a big challenge concerning the planning and scheduling of the logistical processes. If a plant is dismantled and the components are postprocessed on-site, e. g. due to safety regulations demanding special controlled areas in nuclear facilities, often logistical deficits are resulting. If disassembly and postprocessing are not coupled close enough often massive fluctuations of the working systems workload are resulting. A long duration of the whole dismantling process, high inventories of work in progress and alternating short- and over-capacities are the result. This can decrease the economic efficiency of a dismantling project. An approach for a combined control of disassembly and postprocessing considering the specialties of plant dismantling does not exist yet. The objective of this research proposal is to develop an approach for a combined control of disassembly and postprocessing processes in the field of plant dismantling. The approach shall start disassembly activities for specific parts of the plant considering sequence dependent restrictions in such a manner that a constant workload of the postprocessing working stations is achieved. It is also aspired to minimize the buffer stock of work in progress between disassembly and postprocessing. Also knowledge shall be generated concerning the limitations of the achieved approach. The question shall be answered, if a shifting of workloads by controlling the disassembly sequence can improve logistical goals compared to an isolated control of disassembly and postprocessing.

拆除规模庞大和复杂的封闭工业工厂(如核电站或炼油厂)是物流流程计划和调度方面的一大挑战。如果工厂被拆除，部件在现场进行后处理，例如，由于安全法规要求核设施中有特殊的控制区，通常会导致后勤短缺。如果拆卸和后处理的耦合不够紧密，往往会导致工作系统工作量的巨大波动。结果是整个拆除过程持续很长时间，正在进行的工作库存很高，能力不足和过剩交替出现。这可能会降低拆除项目的经济效益。考虑到工厂拆除的特殊性，目前还没有一种对拆卸和后处理进行联合控制的方法。这项研究提案的目的是开发一种在工厂拆卸领域中对拆卸和后处理过程进行联合控制的方法。该方法应开始工厂特定部件的拆卸活动，考虑顺序相关的限制，以实现后处理工作站的恒定工作量。还希望最大限度地减少拆卸和后处理之间正在进行的工作的缓冲库存。此外，还应产生关于已实现方法的局限性的知识。与单独控制拆卸和后处理相比，通过控制拆卸顺序来转移工作量是否可以改善后勤目标，这个问题应该得到回答。