INFLUENCE OF PURIFIED FLUE GAS DISCHAR-GING FROM FGD FACILITY THROUGH COOLING TOWER UPON QUALITY OF CIRCULATORY COOLING WATER AND STUDY ON COUNTER MEASURES THE REOF
ZENG De-yong, LUO Jiang-he. INFLUENCE OF PURIFIED FLUE GAS DISCHAR-GING FROM FGD FACILITY THROUGH COOLING TOWER UPON QUALITY OF CIRCULATORY COOLING WATER AND STUDY ON COUNTER MEASURES THE REOF[J]. Thermal power generation, 2005, (3): 61-64.
ZENG De-yong, LUO Jiang-he. INFLUENCE OF PURIFIED FLUE GAS DISCHAR-GING FROM FGD FACILITY THROUGH COOLING TOWER UPON QUALITY OF CIRCULATORY COOLING WATER AND STUDY ON COUNTER MEASURES THE REOF[J]. Thermal power generation, 2005, (3): 61-64. DOI: 10.19666/j.rlfd.2005.03.021.
由冷却塔排放烟气脱硫净烟气对循环冷却水水质的影响及其对策研究
摘要
通过冷却塔排放湿法烟气脱硫净烟气
会使一定量的污染物进入循环冷却水系统
导致循环水杂质增加
pH值降低
电导率升高
系统腐蚀速度加快。对此
防治措施为加入合适的化学药品
以及合理选材和控制凝汽器管内流速
加强运行监测。此外
有条件的电厂应定期进行清理
必要时采用技术经济合理的旁流处理形式。
Abstract
The purified flue gas discharging from flue gas desulfuration (FGD)facility through cooling tower can make a certain pollutants coming into circulatory cooling water system
leading to enhancement of impurities in circulating water
reduction of its pH value
increasement of its electric conductivity
and acceleration of system corrsion speed.The remedial counter measures are as follows:dosing suitable chemical agents;as well as suitably selecting materials and controlling the flow rate in condenser tubes;and strengthening monitor in operation
carrying out periodic cleaning in power plants with conditions exist
and adopting the by-pass flow treatment reasonable in technical and economical aspects if necessary.