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Standardization of the Water Heat Carrier Quality at Russian Thermal Power Plants

机译：俄罗斯火力发电厂水热载体质量的标准化

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摘要

The necessity of developing a new industry-specific standard of the heat carrier quality for the operating, newly commissioned, and prospective power-generating units of the thermal power plants is substantiated. The need of extending the scope of the automatic chemical monitoring and the possibility of indirect measurements of some basic standardized and diagnostic indices of the water chemistry using the specific conductance are shown. Investigations proved the possibility of automatic chemical monitoring of the phos-phating of the drum boilers and quantitative control of potentially acidic impurities in the feed water in once-through boilers. The normative STO NP INVEL document developed at OAO VTI in 2009 is proposed as the basis for alterations and amendments. A new index, the total organic carbon, is introduced into this document. The standardized value of this index in the drum boiler feed water and steam is 100 μg/dm~3. According to the above normative document, the scope of the chemical monitoring should be extended by measurements of the specific conductance of the direct and H-cation samples of both the feed and the boiler water. The content of chlorides should also be standardized. For the first time, normative restrictions are suggested on amine-containing water chemistry of the power-generating units with the combined cycle gas turbines. Flowcharts are proposed for pretreatment of the make-up water on the basis of low-mineralized natural waters with high organic substance contents, which reduces the oxidizability by 70-80%.
机译：证实了为火力发电厂的运行中，新调试中的和预期的发电单元开发新的行业标准的载热体质量标准的必要性。显示了扩展自动化学监测范围的需要以及使用特定电导率间接测量水化学的一些基本标准化和诊断指标的可能性。调查证明了自动化学监测鼓式锅炉的磷酸盐和定量控制直流锅炉中进水中潜在的酸性杂质的可能性。提议将OAO VTI于2009年制定的STO NP INVEL规范性文件作为变更和修正的基础。本文档中引入了一个新指标，即总有机碳。鼓式锅炉给水和蒸汽中该指标的标准值为100μg/ dm〜3。根据上述规范性文件，应通过测量给水和锅炉水的直接和H-阳离子样品的比电导来扩展化学监测的范围。氯化物的含量也应标准化。首次提出了对带有联合循环燃气轮机的发电装置的含胺水化学的规范限制。在具有高有机物含量的低矿化天然水的基础上，提出了用于补充水预处理的流程图，这将可氧化性降低了70-80％。

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