长江科学院院报 ›› 2017, Vol. 34 ›› Issue (5): 14-17.DOI: 10.11988/ckyyb.20160005

• 水资源与环境 • 上一篇    下一篇

不同配重的浮球覆盖下干旱区平原水库的节水效率对比分析

李存立, 严新军, 侍克斌   

  1. 新疆农业大学 水利与土木工程学院,乌鲁木齐 830052
  • 收稿日期:2016-01-05 修回日期:2016-02-01 出版日期:2017-05-01 发布日期:2017-05-01
  • 作者简介:李存立(1989-),男,河南濮阳人,硕士研究生,主要从事水工优化设计,(电话)13565932113(电子信箱)960460500@qq.com。
  • 基金资助:
    新疆科技支撑计划项目(201233132); 新疆自治区地方公派出国留学成套项目

Comparative Analysis of Water Saving Efficiency of Floating Balls with Different Load Weights Covering Plain Reservoirs in Arid Area

LI Cun-li, YAN Xin-jun, SHI Ke-bin   

  1. School of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052,China
  • Received:2016-01-05 Revised:2016-02-01 Published:2017-05-01 Online:2017-05-01

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摘要： 为达到抑制干旱区平原水库水分蒸发的目的,采用PVC浮球为试验材料,通过室内、外试验观测并分析无配重浮球在不同风速下的运动情况,探究浮球产生不规则旋转和翻滚运动的原因,并采取增加配重的办法对此问题加以解决。通过对比不同配重的浮球在不同气象条件下的湿润率并对其在试验期内的蒸发抑制率进行评价,结果表明:负载配重后的浮球比无配重的浮球的防蒸发节水效果更加显著,其水面综合蒸发抑制率最大可提高24%。研究成果为干旱区平原水库的节水措施提供了新思路。

关键词: 干旱区平原水库, 节水效率, 配重, 浮球覆盖, 蒸发抑制率

Abstract: In the aim of restraining invalid evaporation of plain reservoir in arid area, the efficiency of PVC lightweight balls covering the water surface of reservoir in reducing surface evaporation was evaluated. The movement of lightweight balls in the presence of difference wind speeds was observed and analyzed through indoor and outdoor tests. The causes of irregular rotation and rolling of balls were investigated, and additional load weights were added to the balls to solve this problem. Furthermore, the wetting rates and anti-evaporation coefficients of balls with different load weights under different climate conditions were calculated and compared. Results suggest that floating balls with additional load weights have better effect of reducing evaporation than balls with no additional load weight. The comprehensive rate of reducing surface evaporation could improve by 24% to the maximum.

Key words: plain reservoir in arid area, water saving efficiency, load weight, floating ball cover, rate of evaporation reduction

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