|
|||||
|
|
| 微灌用自吸式自动过滤器滤网内外工作压差的设置研究 | |
| 引用本文： | 刘飞,刘焕芳,郑铁刚,宗全利,谷趁趁,郑华平.微灌用自吸式自动过滤器滤网内外工作压差的设置研究[J].中国农村水利水电,2010,0(4):50-53. |
| 作者姓名： | 刘飞 刘焕芳 郑铁刚 宗全利 谷趁趁 郑华平 |
| 作者单位： | 1. 石河子大学水利建筑工程学院,新疆,石河子,832000 2. 河海大学水利水电工程学院,南京,210098 3. 石河子大学机械电气工程学院,新疆,石河子,832000 4. 石河子金土地节水设备有限公司,新疆,石河子,832000 |
| 基金项目： | 自然科学基金项目(50909062) |
| 摘 要： | 过滤器是微灌工程中处理含沙水源的重要设备,在预设细过滤网内外压差的条件下对微灌用自吸式自动过滤器的过滤和反冲洗性能进行了试验研究。在过滤过程中,细过滤网内表面的泥沙含量和内外压差值随过滤时间增长不断增多,当压差值大于预设压差值时,需对过滤器进行反冲洗。若预设压差值过大,排污时间间隔变长,细过滤网将承受较大压力差而严重影响使用寿命;相反,过滤器的过滤时间较短,频繁排污,影响泥沙的过滤效果,因此如何设置细过滤网内外压差值显的尤为重要。通过理论计算得出细过滤网内外预设压差值的变化范围为0.021~0.086 MPa,并对80目的自吸式自动过滤器进行了试验,结合过滤时间、过滤流量、水头损失等因素,预设压差值设为0.08 MPa时过滤效果较好。 |
| 关 键 词： | 微灌 过滤器 压差设置 过滤与反冲洗 |
| 收稿时间： | 2009-08-18 |
| 修稿时间： | 2009-11-11 |
A Study of Set up on the Work Pressure Difference between the Internal and the External Automatic Self-suction Filter Screen in Micro-irrigation |
|
| LIU Fei , LIU Huan-fang , ZHENG Tie-gang , ZONG Quan-li , GU Chen-chen , ZHENG Hua-ping.A Study of Set up on the Work Pressure Difference between the Internal and the External Automatic Self-suction Filter Screen in Micro-irrigation[J].China Rural Water and Hydropower,2010,0(4):50-53. | |
| Authors: | LIU Fei LIU Huan-fang ZHENG Tie-gang ZONG Quan-li GU Chen-chen ZHENG Hua-ping |
| Institution: | LIU Fei1,LIU Huan-fang1,ZHENG Tie-gang2,ZONG Quan-li1,GU Chen-chen3,ZHENG Hua-ping4(1.College of Water Conservancy , Architectural Engineering,Shihezi University,Xinjiang 832000,China,2.College of Water Conservancy , Hydropower Engineering,Hohai University,Nanjing 210098,3.College of Machinery , Electrical Engineering,4.Shihezi Jintudi Water-Saving Equipment Company,Shihezi 832000,Xinjiang,China) |
| Abstract: | A filter is an essential equipment dealing with the irrigation water containing sand in micro-irrigation projects.By predicting pressure between the inside and the outside of the thin filter screen,the filtration and backwashing characteristics of the automatic self-suction filter in micro-irrigations are studied.In the process of filtering,the sand in the inner surface of the filter screen gradually increases as the filtering time goes on,resulting in the increase of the pressure between the inner and the ... |
| Keywords: | micro-irrigation filter defaulted pressure difference filtration and backwashing |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《中国农村水利水电》浏览原始摘要信息 | |
| 点击此处可从《中国农村水利水电》下载免费的PDF全文 | |