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| 摘要: |
| 介绍了PLC及变频调速技术在电厂污水处理回用工程中的具体应用，加药系统作为污水处理过程的关键工序，直接关系到整个工程的成败与否。针对该工程日处理水量及水质的变化对投加药品的不同需要，加药控制系统分别采用不同的PID运算模式，自动调节系统加药量，既大大提高了控制精度，又降低了运行成本。 |
| 关键词: 电厂 污水处理 废水处理 PLC 变频调速技术 |
| DOI： |
| 分类号:X773.03 |
| 基金项目: |
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| Application of ASD and PLC in Sewage and Wastewater Treatment |
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YIN Qiang
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| Abstract: |
| The application of ASD and PLC technologies in sewage treatment and recycle engineering of power plant is introduced.The chemical feed system is the key to the success of the whole engineering.According to the different requirements of chemical feed for the various daily treatment capacity and sewage quality,different PID operation modes are used in the chemical feed system.It automatically adjusts the chemical feed quantity,increases the control accuracy and decreases operation cost. |
| Key words: PLC,ASD,sewage treatment,chemical feed, |
