首页 | 本学科首页   官方微博 | 高级检索  
     

自吸式文丘里水洗器引射特性研究
引用本文:周艳民,孙中宁,谷海峰,苗壮.自吸式文丘里水洗器引射特性研究[J].原子能科学技术,2015,49(6):1075-1079.
作者姓名:周艳民  孙中宁  谷海峰  苗壮
作者单位:哈尔滨工程大学 核安全与仿真技术国防重点学科实验室,黑龙江 哈尔滨150001
摘    要:以安全壳过滤排放系统中的自吸式文丘里水洗器为研究对象,采用空气和水为工质,在不同空气流量、液位及系统压力下对文丘里水洗器的引射特性进行实验研究。结果表明,随着喉部气相折算流速(简称喉部流速)的增加,吸液口两侧压差近似呈抛物线规律增长,引射量线性增加。压力容器内的液位对引射特性的影响与其相对于文丘里水洗器出口的位置有关,当液位低于文丘里水洗器出口时,随着液位的提升,引射量获得明显的提高,并随喉部流速的变化表现出分区效应,喉部流速较低时,增加液位对于改善引射量更加有效;当液位在文丘里水洗器出口以上变化时,对引射量几乎无影响。压力是影响自吸式文丘里水洗器引射特性的重要因素,这主要归因于气体密度的变化,在0~150kPa范围内,随着压力的提升,引射量得到明显改善,且在高喉部流速区域压力变化对引射量的影响较在低喉部流速区域更加显著。

关 键 词:文丘里水洗器    自吸式    引射量    安全壳过滤排放系统

Research on Injection Characteristics of Venturi Scrubber Worked in Self-priming Mode
ZHOU Yan-min,SUN Zhong-ning,GU Hai-feng,MIAO Zhuang.Research on Injection Characteristics of Venturi Scrubber Worked in Self-priming Mode[J].Atomic Energy Science and Technology,2015,49(6):1075-1079.
Authors:ZHOU Yan-min  SUN Zhong-ning  GU Hai-feng  MIAO Zhuang
Affiliation:Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, China
Abstract:The injection characteristics of Venturi scrubber worked in self-priming mode in containment filter venting system was studied experimentally under different air flows, liquid levels and system pressures. The results indicate that with the increase of superficial gas velocity in throat, the static pressure drop of both sides of the suction grows approximately following a parabolic law, and the injection flow rate injecting into the Venturi scrubber increases linearly. The effect of liquid level on injection characteristics relates closely with the relative position to the outlet of the Venturi scrubber. When the liquid level is below the outlet, the injection flow rate improves significantly with increasing liquid level and presents a partition phenomenon, and in the low throat velocity, the increase of liquid level is more effective to improve the injection flow rate. However, when the liquid level is above the outlet, it almost has no impact on the injection flow rate. The pressure is another important factor affecting the injection characteristic of self-priming Venturi scrubber, which is mainly caused by the change on gas density. In the range of 0.150 kPa, with the increase of pressure, the injection flow rate improves greatly and the influence of pressure is more obvious in high throat velocity than in low throat velocity.
Keywords:Venturi-scrubber  self-priming  injection flow rate  containment filter venting system
本文献已被 CNKI 等数据库收录!
点击此处可从《原子能科学技术》浏览原始摘要信息
点击此处可从《原子能科学技术》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号