人民黄河Issue(10)：123-127,5.DOI:10.3969/j.issn.1000-1379.2015.10.032
某长距离管道输水工程停泵水锤安全防护研究
Study on the Protective Measures for Pump-Stopping Water Hammer of Long Distance Pipeline Engineering
周广钰 1吴辉明 2金喜来 3秦韬4
作者信息
- 1. 黑龙江省水利水电勘测设计研究院，黑龙江哈尔滨150080
- 2. 北京工业大学建筑工程学院，北京100124
- 3. 中国水利水电科学研究院，北京100044
- 4. 水利部水文局，北京100054
- 折叠
摘要
Abstract
Long-distance water pipelines that operating jointly with multi-pump has the characteristics such as large flow and high lift,the sudden-stop will cause water hammer effects in the pipelines,which have huge damages to the system. In order to ensure the safe operation of water conveyance project,it is necessary to analyze the characteristics of water hammer and the corresponding protective measures of water hammer. Taking a water conveyance project as an example,combined with water hammer theory and characteristic line method,the mathematical model of the valve boundary,air valve boundary and pipeline were used to calculate and analyze the pump stopping water hammer of long-distance water pipelines respectively which used protective measures such as air valves,general check valves,slow butterfly valves or their combination. At last,the maximum head,the minimum head as well as the change rule of pump speed and flow relative value was obtained. By comparison,the study found that the operation using water hammer protection measures combined with air valve and the two phase of the butterfly valve could reduce the pipeline extreme pressure and ensure the safe operation of the pipeline and the water pump.关键词
水锤/空气阀/停泵/长距离输水/水泵Key words
water hammer/air valve/stop pumping/long distance water pipelines/pump分类
建筑与水利引用本文复制引用
周广钰,吴辉明,金喜来,秦韬..某长距离管道输水工程停泵水锤安全防护研究[J].人民黄河,2015,(10):123-127,5.
