Abstract—

In 2018, combined-cycle power installations equipped with heat-recovery steam generators were commissioned at the combined heat and power plant nos. 1, 2, and 3 (CHPP-1, CHPP-2, and CHPP-3) in the city of Kazan. The content of organic substances in the blowdown water of clarifiers, in chemically demineralized water, in evaporating plant condensate, in heat-recovery steam generator feed water and blowdown water, and in turbine condensate was investigated. Organic substances in dry form were separated from water samples using the extraction method. The physicochemical properties and structures of the separated organic impurities were determined using an elemental analysis, infrared spectroscopy, high-efficient liquid chromatography, chromatography-mass spectrometry, and nuclear magnetic resonance methods. It was found that the content of total organic carbon (TOC) was higher than its standardized value in the heat-recovery steam generator feed water, slightly higher than the standardized value in the condensate of evaporators, and in compliance with the existing standard requirements in the turbine condensate and chemically demineralized water. Humic substances that are not removed from water during its pretreatment and enter in the heat-recovery steam generator feed water were identified as the main organic component. It is shown that ion exchange is an efficient technology for removing organic impurities from makeup water for the heat-recovery steam generator.

中文翻译：

---

配备联合循环动力装置的热电联产电厂冷却液中有机杂质的理化分析

摘要—

2018年，在热电联产厂No.1上调试了配备热回收蒸汽发生器的联合循环发电装置。喀山市的1、2和3（CHPP-1，CHPP-2和CHPP-3）。研究了澄清池排污水中，化学软化水中，蒸发工厂冷凝物中，热回收蒸汽发生器给水和排泄水中以及涡轮机冷凝物中有机物的含量。使用萃取方法从水样中分离出干燥形式的有机物质。使用元素分析，红外光谱，高效液相色谱，色谱-质谱和核磁共振法确定分离出的有机杂质的理化性质和结构。结果发现，总有机碳（TOC）的含量高于热回收蒸汽发生器给水中的标准值，略高于蒸发器冷凝物中的标准值，并且符合现行的标准要求。涡轮机的冷凝水和化学去离子水。在其预处理过程中未从水中除去并进入热回收蒸汽发生器给水的腐殖质被确定为主要有机成分。结果表明，离子交换是一种用于从余热回收蒸汽发生器中去除补充水中有机杂质的有效技术。并符合涡轮机冷凝水和化学软化水的现有标准要求。在其预处理过程中未从水中除去并进入热回收蒸汽发生器给水的腐殖质被确定为主要有机成分。结果表明，离子交换是一种用于从余热回收蒸汽发生器中去除补充水中有机杂质的有效技术。并符合涡轮机冷凝水和化学软化水的现有标准要求。在其预处理过程中未从水中除去并进入热回收蒸汽发生器给水的腐殖质被确定为主要有机成分。结果表明，离子交换是一种用于从余热回收蒸汽发生器中去除补充水中有机杂质的有效技术。