烟气轮机动叶表面颗粒冷态沉积实验

doi:10.16085/j.issn.1000-6613.2017-1865

化工进展 ›› 2018, Vol. 37 ›› Issue (07): 2539-2546.DOI: 10.16085/j.issn.1000-6613.2017-1865

烟气轮机动叶表面颗粒冷态沉积实验

陈帅甫, 王建军, 金有海, 韩兆玉, 丁健

中国石油大学(华东)化学工程学院, 山东青岛 266580

收稿日期:2017-09-05 修回日期:2017-10-31 出版日期:2018-07-05 发布日期:2018-07-05
通讯作者: 王建军
作者简介:陈帅甫(1988-),男,博士研究生,研究方向为多相流动与分离、化工过程机械。
基金资助:
山东省自然科学基金项目（ZR2015EM026）。

Particles deposition cold state experiment on rotating blade surface of the flue gas turbine

CHEN Shuaifu, WANG Jianjun, JIN Youhai, HAN Zhaoyu, DING Jian

College of Chemical Engineering, China University of Petroleum(East China), Qingdao 266580, Shandong, China

Received:2017-09-05 Revised:2017-10-31 Online:2018-07-05 Published:2018-07-05

摘要/Abstract

摘要： 烟气轮机作为催化裂化装置能量回收系统的核心设备，为保证其长周期安全运行，需解决动叶上催化剂颗粒沉积结垢问题。本文设计加工了模型烟气轮机，研究了入口风量、入口加料浓度以及入口颗粒粒度等因素对动叶表面上颗粒沉积的影响规律。结果表明，沉积质量随着风量的增加而不断减小，颗粒粒径越小，沉积质量减小的速度越快；沉积质量随加料浓度的变化曲线呈“厂”字形分布，浓度较低时，沉积质量随浓度的增加逐渐增大，当浓度增加到一定程度（实验条件下为10g/m³）时，沉积质量随浓度的变化不大。在浓度、风量等工况相同时，入口颗粒粒度越小，沉积质量越大；小于40μm的颗粒较容易发生沉积，大于40μm的颗粒很难在模型烟气轮机动叶的表面发生沉积。实验结果为控制颗粒沉积结垢提供了可靠依据。

关键词: 沉积物, 两相流, 颗粒, 烟气轮机

Abstract: Flue gas turbine is the core equipment in the energy recovery system of catalytic cracking unit. In order to ensure the safe operation, it is necessary to solve the deposition problem of catalyst particles on the rotating blade surface. The influence of inlet air flow rate, concentration and particle size on the particle deposition on the rotating blade surface was studied. The results showed that the deposition quality decreases with the increase of the air flow rate. The smaller the particle size, the faster the deposition quality decreases. When the concentration is low, the deposition quality increases with the concentration increasing. While the concentration increased to a certain extent(10g/m³ under experimental conditions), the deposition quality did not vary with the concentration. In the same concentration, air flow rate and other conditions, the smaller the size of the inlet particles are, the greater the quality of deposition. Particles with size less than 40μm are more prone to deposition. Particles larger than 40μm are difficult to deposit on the blade surface. The experimental results provide a reliable basis for controlling the particle deposition.

Key words: deposition, two-phase flow, particle, flue gas turbine

中图分类号:

TQ051.1

陈帅甫, 王建军, 金有海, 韩兆玉, 丁健. 烟气轮机动叶表面颗粒冷态沉积实验[J]. 化工进展, 2018, 37(07): 2539-2546.

CHEN Shuaifu, WANG Jianjun, JIN Youhai, HAN Zhaoyu, DING Jian. Particles deposition cold state experiment on rotating blade surface of the flue gas turbine[J]. Chemical Industry and Engineering Progress, 2018, 37(07): 2539-2546.

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烟气轮机动叶表面颗粒冷态沉积实验

Particles deposition cold state experiment on rotating blade surface of the flue gas turbine

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