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二、工质法与水汽法对比5. 自用电耗影自用电耗是响发电系统经济性的重要因素,对于低温发电尤其是这样.因此,如何降低自用电耗就显得十分重要.水汽法通常由于水蒸汽焓降大、汽耗率低而使凝结水泵的消耗功率比较小,但是维持凝汽器的真空度,需消耗一定的能量,由此总的自用电耗比较高.如果仅用凝结水泵的能耗与工质循环泵的能耗相比,显然不能客观地反映两种方式自用电耗的实际情况.
Second, the working fluid method and water vapor contrast 5. Self-consumption power consumption Self-consumption power consumption is an important factor in the economic power generation system, especially for low-temperature power generation Therefore, how to reduce their own power consumption is very important.Vapor method is usually Due to the large drop of enthalpy of steam and the low rate of steam consumption, the power consumption of the condensate pump is relatively small, but it needs to consume a certain amount of energy to maintain the vacuum degree of the condenser, so that the total self-consumption electricity consumption is relatively high. Compared with the energy consumption of the working fluid circulation pump, the energy consumption of the pump obviously can not objectively reflect the actual situation of electricity consumption in two ways.