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Thermal Power Plant Pressure Dense Phase Pneumatic Ash PLC Control System Design and Implementation

机译：火力发电厂压浓相气灰PLC控制系统设计与实现

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摘要

Ash handling system of Coal-fired power plant is a advanced, economic, environmental science and technology. As the requirements and limitations of environmental protection, water resources and others, positive pressure pneumatic ash handling is widely used as ash handing method in China's coal-fired power plant. In this paper, Changchun High-tech thermal power plant unit 2 25Mw Ash delivery system is taken as object describing the configuration and project delivery process of pneumatic ash handling system, according to the control performance requirements of the ash handling system unit designed to using Siemens S7-200 type PLC for the control core of dual-machine redundant automatic control system to achieve the ash system control requirements and the main function, while in the PC .software Wincc6.2 used to control PLC running to achieve a successful running of equipment data collection, centralized operations, real-time monitoring, data storage, fault alarm functions , improving the system's control and management capabilities. Reduced the labor intensity of running, saving the cost of maintenance.
机译：燃煤电厂除灰系统是一项先进的，经济的，环境科学的技术。由于环保，水资源等方面的要求和局限性，正压气力除灰被广泛用作我国燃煤电厂的除灰方法。本文以专为西门子设计的灰分处理系统单元的控制性能要求，以长春高新技术热电厂2号机组25Mw灰分输送系统为对象，介绍了气动灰分处理系统的配置和工程交付过程。 S7-200型PLC为控制核心的双机冗余自动控制系统，实现了灰系统的控制要求和主要功能，而在PC机上使用Wincc6.2软件控制PLC的运行，以实现设备的成功运行。数据采集​​，集中操作，实时监控，数据存储，故障报警功能，提高了系统的控制和管理能力。降低了运行的劳动强度，节省了维护成本。

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