广西水利水电
廣西水利水電
엄서수이수전
GX WATER RESOURCES & HYDROPOWER ENGINEERING
2014年
2期
6-8
,共3页
滴灌%管道变径%调压%试验
滴灌%管道變徑%調壓%試驗
적관%관도변경%조압%시험
Drip irrigation%pipe diameter variation%pressure regulating%test
为解决丘陵坡地发展滴灌，田间配水管网压力不均衡、灌水均匀度达不到要求的问题，结合广西高效节水灌溉工程发展的实践经验，提出管道变径的调压方法对支管的压力水头进行调节，并通过经验公式和试验分析管道变径调压方法的效果。结果：通过管道变径调压方法能有效地解决因地势高差引起的支管水压不均衡、灌水均匀度达不到要求的问题，且经验公式计算结果可直接用于支管变径调压设计。
為解決丘陵坡地髮展滴灌，田間配水管網壓力不均衡、灌水均勻度達不到要求的問題，結閤廣西高效節水灌溉工程髮展的實踐經驗，提齣管道變徑的調壓方法對支管的壓力水頭進行調節，併通過經驗公式和試驗分析管道變徑調壓方法的效果。結果：通過管道變徑調壓方法能有效地解決因地勢高差引起的支管水壓不均衡、灌水均勻度達不到要求的問題，且經驗公式計算結果可直接用于支管變徑調壓設計。
위해결구릉파지발전적관，전간배수관망압력불균형、관수균균도체불도요구적문제，결합엄서고효절수관개공정발전적실천경험，제출관도변경적조압방법대지관적압력수두진행조절，병통과경험공식화시험분석관도변경조압방법적효과。결과：통과관도변경조압방법능유효지해결인지세고차인기적지관수압불균형、관수균균도체불도요구적문제，차경험공식계산결과가직접용우지관변경조압설계。
When drip irrigation work is constructed in the hilly area,pressure imbalance of farmland water distribu-tion pipe network frequently lead to irrigation uniformity not up to requirements. In order to solve this problem, com-bined with the practice of water-saving irrigation construction in Guangxi, the authors put forward to regulate the pressure head of branch pipeline by change of pipe diameter, and present the regulating effects with empirical for-mula and tests. The results of test demonstrate that variation of pipe diameter can effectively solve branch pipe wa-ter pressure imbalance and uneven irrigation due to elevation difference. The results of calculation with empirical formula can be directly adopted for branch pipe diameter variation design.
