除雾器冲洗系统程序中文版.pdf

W a s h i n g p r o c e d u r e 冲洗程序 1. Design of washing procedure 冲洗程序的设计 The objective of RPT’s washing schedule is to maintain a clean and open mist eliminator and to assure low pressure drop as well as undisturbed operation of the FGD and the power plant. RPT 公司的冲洗程序是为了保证除雾器清洁可靠从而确保较低的压降，保证脱硫系 统和电厂的运行正常。 The experience shows that a frequent washing of the mist eliminator with a high quantity of wash water– in particular of the coarse mist eliminator – protects the mist eliminator from clogging and avoids high pressure drop and long operation cycles. 根据经验显示频繁地冲洗除雾器需要大量的冲洗水，特别是第一级除雾器，防止除 雾器堵塞避免产生高压降和长时间运行循环。 Accordingly, the design proposal for the washing schedule is directed at using a high quantity of wash water for this reason. Smaller wash water quantities are possible – if needed this should be discussed in detail. 因此冲洗程序的设计直接就是采用大量的冲洗水就是这个原因，少量的冲洗水是有 可能的，如果需要可以再详细讨论。 2. Dimensioning of pump and system 泵和系统的尺寸 In its quotation RPT provides the key parameters for the dimensioning of the washing system which consists of pump dimensioning, number of valves per level and wash water quantity (table 1 – an example). Additional detail is provided in the technical data sheets. RPT 提供冲洗系统定尺寸的关键参数包括泵的尺寸，每层的阀门数量和冲洗水的数 量（图 1－例子）附加详细的技术参数 Coarse mist eliminator: front rear 第一级除雾器 前 后 spray levels （ 冲洗层数） 1 1 valves per level （每层的阀门数） 8 8 水耗量） 25.5 25.5 water consumption (m³/h) （ Fine mist eliminator front 第二级除雾器