摘要随着社会经济的飞速进展，城市建设规模的不断扩大，以及人们生活水平的不断提高，对城市生活供暖的用户数量和供暖质量提出了越来越高的要求，因此对于供暖锅炉系统也有了更高层次的要求，利用现代自动控制技术，通过变频器和可编程控制器 PLC 的运用，实现操作简单、自动化程度高、环境污染少、低能耗、供暖质量高和日常维护费用低的供暖变频锅炉系统。本设计利用现代变频技术和 PLC 控制技术设计出了一套供暖锅炉变频控制系统。系统中共有 6 台锅炉，每台锅炉各分配 1 台炉排、1 台鼓风机、1 台引风机，将 6 台锅炉分为两组，其中 4 台用于工矿企业供暖任务，2 台用于居民日常供暖任务，每台炉排电机、引风机、鼓风机各配置 1台变频器，每组锅炉系统各分配 2 台补水泵。4 台锅炉系统分配 4 台循环泵，2 台锅炉系统分配 2 台循环泵，两个循环泵系统均配置 2 台变频器，循环泵变频控制采纳“一拖四”和“一拖二”控制方式。关键词：锅炉 PLC 变频器 电机AbstractWith the rapid development of social economy, city construction scale continues to expand, and people's rising living standards, puts forward more and more high request to the city life heating user quantity and the heating quality, so the heating boiler system is also required higher level, the use of modern automatic control technology, the frequency converter and application of programmable logic controller PLC, realization of simple operation, high degree of automation, less environmental pollution, low energy consumption, high quality and daily maintenance of heating heating boiler system cost low frequency. The design of the use of modern variable frequency technology and PLC control technology to design a set of heating boiler control system. System there are 6 boilers, each boiler grate, the distribution of 1 sets of 1 blowers, 1 fans, 6 boilers are divided into two groups, of which 4 units used in industrial and mining enterprises heating task, 2 for household heating tasks, each grat...
