CAJ | 학술논문

本文开展了以低水耗为目标的水力旋流除沙研究. 其技术方案是在底部集水盘的排污口附近建立一个带水力旋流器的除沙旁路,在直径为Φ50mm的水力旋流器上采用非常规的1~4mm的小口径底流管排沙,溢流仍然回到底部集水盘,并根据底部集水盘的积沙情况间歇运行. 实验研究了在其它结构参数和操作参数都在常规范围内且保持不变的条件下,不同底流口径与底流分流比及底流产率的关系. 结果表明:当底流口径在2 mm附近时,同时达到最小的底流分流比和最大的底流产率,说明存在一个最佳的节水除沙底流口径;在该口径下,对实验台容积为68.7L的进料池循环运行30 min,除沙率可达90%,耗水量仅占进料池总水量的1.75%,达到了节水除沙的目的.
본문개전료이저수모위목표적수력선류제사연구. 기기술방안시재저부집수반적배오구부근건립일개대수력선류기적제사방로,재직경위Φ50mm적수력선류기상채용비상규적1~4mm적소구경저류관배사,일류잉연회도저부집수반,병근거저부집수반적적사정황간헐운행. 실험연구료재기타결구삼수화조작삼수도재상규범위내차보지불변적조건하,불동저류구경여저류분류비급저유산솔적관계. 결과표명:당저류구경재2 mm부근시,동시체도최소적저류분류비화최대적저유산솔,설명존재일개최가적절수제사저류구경;재해구경하,대실험태용적위68.7L적진료지순배운행30 min,제사솔가체90%,모수량부점진료지총수량적1.75%,체도료절수제사적목적.
This paper aims to improve efficiency of removal of sand with less water consumption .The scheme is to set a bypass involve a hydraulic cyclone on bottom of the water tank for sand removal .The hydraulic cyclone of Φ50mm with unconventional small range of underflow diameter (1-4mm) were se-lected to investigate the sand removal performance .The overflow flows back to the water tank and its run-ning is under an intermittent control which depends on the condition of sands accumulating .The experi-ment focus on the relationship between underflow diameter and underflow productivity as well as split rati -o, keeping other operating and geometry parameters to be constant in their conventional range .The result shows that the underflow productivity and the split ratio reach their maximum and minimum respectively when the underflow diameter is nearby 2 mm.It means that there's an optimum underflow diameter for sand removal and water saving .After applying the hydraulic cyclone with 2mm underflow diameter to an experiment system with the inlet pool's volume of 68.7L for 30 minutes, it can achieve the sand removal rate of 90%and consume merely 1.75%of the total water of inlet pool , which reach the target of saving water and removing sand .