基于粒径测量方法的水下气液旋流分离器分离性能评价

Performance evaluation of underwater gas/liquid cyclone separators by particle size measurement

利用在线激光粒度仪并结合粒径测量方法对深水水下气液旋流分离器的分离性能进行了评价,考察了入口气速和入口液滴粒径对分离性能的影响。结果表明:出口液滴粒径大小和出口含液体积分数高低是评价分离器分离性能的重要参数;分离器入口和出口液滴粒径符合对数正态分布;出口液滴粒径和出口含液体积分数随入口气速的增大而减小,并最终趋于稳定;入口液滴粒径的大小仅影响出口含液体积分数,对出口液滴粒径几乎无影响;当出口液滴粒径相同时,可通过对比出口含液体积分数的高低判断分离器分离性能的优劣。

Separation performance of the underwater gas/liquid cylindrical cyclone separators was evaluated and analyzed by using online laser particle size instrument combined with particle size measurement. Influ- ences of inlet velocity and inlet droplet sizes on the performance were investigated. It is found that droplet sizes and liquid content at the outlet are the important criteria to evaluate the separation performance. And the droplet sizes distributions at both the inlet and the outlet of the separator conform to the log-normal distribution. Droplet sizes and liquid content at the outlet decrease with increasing inlet gas velocity and trend to stabilize. Droplet sizes at the inlet show influence only on the outlet liquid content, but hardly any influence on the outlet droplet sizes. The performance can be estimated by comparing the outlet liquid con- tent if the outlet droplet sizes are the same.