核电厂取水明渠泥沙回淤分析

核电厂需用大量冷却水，用水量为工业用水的第一位。明渠取水是核电厂常用的取水方式之一。本文针对电厂取水明渠及口门外水流特点，分析计算了取水明渠内各部位及口门外过渡段的泥沙回淤率，并提出减少明渠泥沙回淤量的措施。

ANALYZING ON THE SEDIMENT ACCUMULATION IN THE INTAKE OPEN CHANNEL OF NUCLEAR POWER STATION

A large quantity of cooling water, which ranks the first in the industrial water, is needed by nuclear power station. It is one of the conventional methods for thenuclear power station to use open channel to intake water. This paper, according to theflow characteristics outside the intake open channel and at the mouth of the nuclearpowder station, a measure to reduce the back-silting quantity of the sediment in the openchannel is presented through the analyzing and computing of the rate of back siltingofsediment in the crossing reach outside the mouth and each part of the channel.