CAJ | 학술논문

为了研究分离鳃的鳃片间距对水沙分离效果的影响，在分离鳃和普通管中进行了4组不同含沙量、7种不同鳃片间距的静水沉降试验，运用浅层沉淀理论对不同鳃片间距的分离鳃水沙分离性能进行了分析。试验结果表明：分离鳃的水沙分离效果好于普通管的，不同鳃片间距的分离鳃泥沙平均沉降速度为普通管的1郾40~3郾25倍；分离鳃的鳃片间距越小，分离鳃的泥沙沉降速度就越大，反之亦然；5~15 cm的鳃片间距对清水层厚度和泥沙沉降速度影响最大，同时考虑制作分离鳃的经济性和工艺难易程度，鳃片间距宜为10 cm。
위료연구분리새적새편간거대수사분리효과적영향，재분리새화보통관중진행료4조불동함사량、7충불동새편간거적정수침강시험，운용천층침정이론대불동새편간거적분리새수사분리성능진행료분석。시험결과표명：분리새적수사분리효과호우보통관적，불동새편간거적분리새니사평균침강속도위보통관적1언40~3언25배；분리새적새편간거월소，분리새적니사침강속도취월대，반지역연；5~15 cm적새편간거대청수층후도화니사침강속도영향최대，동시고필제작분리새적경제성화공예난역정도，새편간거의위10 cm。
The static water settlement tests of four different sediment concentrations were carried out in a gill-piece separation device (GPSD) with seven different gill-piece spacing and in a common tube without gill-piece. Meanwhile, the water-sediment separation performance of different gill-piece spacing was analyzed by using the theory of “shallow precipitation”. Test results show that the water-sediment separation effect of a GPSD is better than that of a common tube without gill-piece, and the average sediment settling velocity of different gill-piece spacing in a GPSD is 1.4-3.25 times of that in a common tube without gill-piece. The smaller the gill-piece spacing is, the bigger the sediment settling velocity is, and vice versa. The gill-piece spacing between 5-15 cm has the greatest effect on clear water layer thickness and sediment settling velocity. Furthermore, considering the economy and the difficulty of production process of a GPSD, the optimal gill-piece spacing is chosen to be 10cm finally.