排灌机械工程学报Issue(12)：1098-1104,7.DOI:10.3969/j.issn.1674-8530.14.0020
卧式自清洗网式过滤器排污时间试验及计算
Experiment and calculation of discharge time for horizontal type self-cleaning screen filter
摘要
Abstract
Through the experiment of discharge time of horizontal type self-cleaning screen filter,the relationships between sediment content at outlet and discharge time were obtained,with six different sediment content of inlet,which are S =0.006,0.013,0.015,0.018,0.027,0.063 kg/m3 ,and four different flow rates,which are Q =220,200,180,160 m3 /h.The changes of sediment content at outlet with discharge time are analyzed respectively such as different sediment content at same flow rate,and same sediment content at different flow rate.The results show that the sediment content at outlet rise to the maximum first,then decrease until reaching a steady value.Therefore,the minimum of discharge time is 14 s.According to the law of conservation of mass,the calculation me-thod of discharge time is also established.Based on the experimental results,the discharge time of filter is calculated,and the value of calculted discharge time is 15 -47 s.Combined experimental results of discharge time,the value of discharge time for horizontal type self-cleaning screen filter is determined,which is 15 -30 s. The results are consistent with the existing filter test results and actual operating results,which can beused to predict discharge time for practical engineering horizontal self-cleaning screen filter.关键词
卧式自清洗网式过滤器/排污时间/流量/含沙量/理论计算Key words
horizontal type self-cleaning screen filter/discharge time/flow rate/sediment content/theoretical calculation分类
农业科技引用本文复制引用
李强强,宗全利,刘贞姬,蓝军..卧式自清洗网式过滤器排污时间试验及计算[J].排灌机械工程学报,2014,(12):1098-1104,7.基金项目
国家自然科学基金资助项目 （）
