脱硫浆液闪蒸提热试验研究  

Experimental study on heat recovery via flash of desulphurization slurry

作　　者：徐世明 徐海涛 安航 祁征 周贤[3] 彭烁[3] XU Shiming;XU Haitao;AN Hang;QI Zheng;ZHOU Xian;PENG Shuo(Huaneng Yingkou Thermal Power Co.,Ltd.,Yingkou 115004,China;Hailar Thermal Power Plant,Hulunbeier Antai Thermal Power Co.,Ltd.,Hailar 021000,China;Huaneng Clean Energy Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]华能营口热电有限责任公司,辽宁营口115004 [2]呼伦贝尔安泰热电有限责任公司海拉尔热电厂,内蒙古海拉尔021000 [3]中国华能集团清洁能源技术研究院有限公司,北京102209

出　　处：《热力发电》2022年第7期156-162,共7页Thermal Power Generation

基　　金：中国华能集团有限公司总部科技项目(HNKJ21-H45)。

摘　　要：热电联产机组存在进一步提高供热能力、节能节水、消除烟气烟羽等需求。首先,介绍了脱硫浆液闪蒸提热的技术原理和脱硫浆液闪蒸试验平台的结构与功能;然后,系统考察了关键过程参数对闪蒸提热过程的影响作用规律。结果表明:提高循环浆液温度、提高循环浆液流量和降低闪蒸罐压力有利于提高闪蒸提热效果;冷凝水水质分析和热量回收分析表明,脱硫浆液闪蒸提热技术应用于300 MW机组可提供30 MW供热负荷,节能节水效果显著。Aiming at meeting the demand of further improving heating capacity,saving energy and water,and eliminating smoke plume of cogeneration units,technical principle of heat recovery via flash of desulphurization slurry and the structure and function of the flash platform were introduced firstly.Then,the influence of key parameters on the heat recovery via flash of desulphurization slurry was investigated systematically.The results show that,increasing the temperature and flow rate of circulating slurry and decreasing the pressure of flashing tank are beneficial to improving the heat recovery effect.Water quality analysis and heat recovery analysis shows that,when the process of heat recovery via desulfurization slurry flash is applied to 300 MW-level units,30 MW heating load can be recovered,and the energy and water saving effect is significant.

关 键 词：脱硫浆液 闪蒸 余热回收 节能节水 参数分析 

分 类 号：TK115[动力工程及工程热物理—热能工程]