引水渠道抽水融冰水温沿程变化规律试验研究  

An Experimental Research on the Temperature Change along the Diversion Channels in Different Situations

作　　者：赵梦蕾[1] 宗全利[1] 刘贞姬[1] 王子坚[2] 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832000 [2]新疆生产建设兵团勘测设计院(集团)有限责任公司一分院,新疆石河子832000

出　　处：《中国农村水利水电》2015年第8期189-195,198,共8页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51269028)

摘　　要：在我国严寒地区,为了有效地改善引水式水电站引水渠冰封冰冻现象,可采取抽水融冰方法来保证引水渠道冬季运行畅通,为此对引水渠道抽水融冰水温沿程变化规律进行了试验研究。分别在未注井水、单井注水和双井注水3种情况下,进行了8组不同渠水流量和3组不同井水流量的试验;其中,单井注水试验分别选择了4个不同位置,双井注水的试验分别选择了在6个不同注水位置的组合进行。根据试验结果,分别得到了未注井水、单井注水和双井注水3种情况下,引水渠道水温沿程逐渐减小的变化规律;并结合数据分析,首先得到了未注井水时引水渠道水温沿程变化计算公式,并将计算值和实测值进行了对比,结果表明两者符合较好;在此基础上,重点分析得到了单井注水和双井注水的水温沿程变化计算公式,并分别进行了计算值和实测值的对比分析,结果表明:单井注水和双井注水实测值和计算值最大误差分别为6.25%和5.84%,可以用于实际工程水温沿程变化计算。In several cold areas of our country ,hydropower station diversion canals are often frozen .which brings a series of influence on the normal production and benefits .In order to improve drainage water temperature effectively ,and ensure the water in diversion channels can run smooth in winter ,some experimental researches were done on the temperature change along the diversion channels in different situations .There are three situations with no wells ,single well and double wells ,and performed on 8 different groups of canal water flow and 3 groups of different water flows .Then four different positions were chosen to do the single well test ,and six different positions were combined to do the double well tests .Through the test some rules about them can be analyzed and combined with the experimental results obtained corresponding formula .When there is no well ,water temperature decreases with the formula , and to compare with the theoretical formula and experimental values ,so it is found that the formula fit better .And based on these , research was done on single wells and double wells tests ..They do fit better ,the maximum errors are only 6 .25% and 5 .84% ,that makes them calculate the canal water temperature in different canal water flows ,well flows and different positions .

关 键 词：抽水融冰 渠水水温 沿程变化 变化规律 

分 类 号：TV76[水利工程—水利水电工程]