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METHOD OF ONCE-THROUGH STEAM GENERATOR OPERATION AT STEAM TEMPERATURE OVER 650-C, AND ONCE-THROUGH STEAM GENERATOR
METHOD OF ONCE-THROUGH STEAM GENERATOR OPERATION AT STEAM TEMPERATURE OVER 650-C, AND ONCE-THROUGH STEAM GENERATOR
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机译:蒸汽温度超过650-C时蒸汽通过式发电机的运行方法以及蒸汽通过式发电机
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摘要
FIELD: power industry.;SUBSTANCE: invention refers to power industry and can be applied in operation of once-through steam generator functioning at variable pressure and stem temperature over 650°C, with reduced minimum pressure flow load of pressure-flow steam generator, where the steam generator is installed in the plant work medium circuit, and steam generator economiser includes at least one high-pressure heater and/or heat transfer system for heating medium, so that at least one high-pressure heater and/or heat transfer system for heating medium is installed upstream in the work medium flow in the circuit; when fractional load setpoint (LT) is elevated, heat absorption of work medium in at least one high-pressure heater and/or heat transfer system is reduced so that the temperature of steam and water work medium at economiser outlet is lower than boiling temperature against at the respective economiser outlet by a given temperature difference (TD).;EFFECT: enhanced operation efficiency.;19 cl, 3 dwg
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机译:领域:本发明是指电力工业,可用于直流蒸汽发生器的操作,该蒸汽发生器在可变压力和阀杆温度超过650°C的情况下工作,从而减小了压力流蒸汽发生器的最小压力流量负荷,其中蒸汽发生器安装在工厂工作介质回路中,并且蒸汽发生器节能器包括至少一个用于加热介质的高压加热器和/或传热系统,以便至少一个高压加热器和/或传热系统用于加热介质的上游安装在工作介质流中的回路;当提高部分负荷设定值(L T Sub>)时,至少一个高压加热器和/或传热系统中的工作介质的吸热会降低,因此蒸汽和水工作介质的温度为省煤器出口比给定省煤器出口的沸腾温度低一个给定的温差(T D Sub>)。;效果:提高的运行效率。; 19 cl,3 dwg
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