变频器及PLC在铝电解供风系统中的节能应用

Application on Energy Conservation of Transducer and PLC in Wind Supply System of Aluminium Electreolysis

我公司第一电解厂净化车间东部的6台高压风机和3台反吹风机的控制方式均为接触器全压启动,风压的调节只能靠人工到现场启、停单台风机来实现,风压高低不能及时根据生产工艺的需求而进行调节,给生产工艺常带来影响,而且存在能源浪费现象。本文针对该系统存在的这一问题,提出了具体的、可靠的节能改造方案,整个风机的电气系统中实现了PLC、Profibus总线网络控制,控制精度高,故障率低,便于维修,解决了生产工艺中存在的问题,系统采用了变频器调速控制风机电机的转速来调节工艺所需风压的高低,节约了能源。

Electrolysis plant to purify the first company in the eastern part of the workshop six high pressure air purge blower control and the three were then full-contact pressure activated, the air-conditioning to the scene to rely on artificial Kai, suspended typhoon aircraft to achieve. Pressure must also promptly adjust according to the needs of the production process, often brought to the production process, and energy waste. In this paper, the existence of this problem, a specific, reliable, energy transformation, Fans of the entire electrical system can accomplish the PLC, Profibus network control, control precision, failure rate is low and easy maintenance, solving the problems that exist in the production process. Frequency control system uses a blower motor speed control technology necessary to regulate the level of air pressure, saving energy.