内陆核电厂低环境流速下多孔扩散器方案研究  

Study of Porous Diffuser Scheme of Inland Nuclear Power Plant under Low Flow Condition

作　　者：张琨[1] 张爱玲[1] 覃春丽[2] 王韶伟[1] 

机构地区：[1]环境保护部核与辐射安全中心,北京100082 [2]中广核集团苏州热工研究院,江苏苏州215004

出　　处：《环境影响评价》2016年第5期59-62,共4页Environmental Impact Assessment

摘　　要：我国对于内陆核电厂液态流出物的排放有着严格要求,为满足相关规定,可采用多孔扩散器对流出物进行充分稀释。以我国某内陆核电厂多孔扩散器的设计方案为研究对象,利用CORMIX软件从多孔扩散器主管长度、射流角度、近岸或离岸布置三个影响因素出发,对设计方案进行比选。由比选结果可知,扇形喷口形式略优于平行喷口多孔扩散器;扩散器主管长度越长、离岸距离越远,越有利于排放口下游的初始掺混稀释。同时通过对10^(-1)m/s、10^(-2)m/s和10^(-3)m/s三种不同环境流速下特定排放方式稀释情况的比较,发现对于不同的环境流速,其最佳排放方式不同。The requirements for the radioactive liquid effluent discharge of inland nuclear power plant are strict in China. In order to meet these relevant regulations, the porous diffuser can be used to fully dilute the effluent discharge. This paper took a porous diffuser scheme of inland nuclear power plant as the case study. CORMIX was used to compare and analyze the design scheme based on three factors, including main pipe length, flow angle, and inshore or offshore arrangement. The result suggested that the fan-shaped vents were better than the parallel ones; long main pipe was better than the short one ; and long offshore arrangement was better than the short one. At the same time, by comparing the dilution situations under different environmental flow rates, such as 10 ^- 1 m / s , 10 ^- 2 m/s and 10 ^- 3 m / s , it was found that the optimal way of discharge was different under different environmental flow rates.

关 键 词：内陆核电厂 液态流出物 多孔扩散器 CORMIX 

分 类 号：X771[环境科学与工程—环境工程]