溢流染色机自动控制系统的改造

 针对染色机控制系统中的控制方式单一且自动化程度落后，同时对水，电资源浪费大等问题，设计了一套全新的控制方案。运用PLC及组态技术使系统实现集散控制，在相应环节上运用变频及智能PID技术，解决了染色机控制方式的单一、落后、实时性差等问题。实验证明，经改造后的系统简化了工艺操作，使操作流程规范化，布匹染色均匀、质量显著提高。在加入PID算法后，控制系统动态响应良好，精确度提高，系统达到了节能降耗，减小污染，提高生产运行效率的目的。

Reformation on automatic control system of overflow dyeing machine

The current control system of dyeing machines has such drawbacks as single control mode, low degree of automation, and great consumption of water and power. Therefore, a novel control system is proposed, which applies PLC and configuration technique along with frequency conversion and intelligent PID, realizing discrete control and solving the above problems with improvement in real-time control. The experiments demonstrated that the modified system simplifies the production process, standardizes the operating process, and enhances levelness and quality of the dyed fabrics. With incorporation of PID control algorithm, the control system is characterized by good response, high precision, energy-saving and cost-reducing, pollution cut and efficiency enhancement.