小型热电背压排汽降温系统的能源效益分析

ANALYSIS ON ENERGY BENEFIT OF DROPPING TEMPERATURE SYSTEM OF EXHAUSTING STEAM FORM BACKPRESSURE TURBINE IN A SMALL ELECTRIC AND THERMAL POWER PLANT

小型热电机组的背压排汽．有些是经给水喷水降温后供热的．如果改造成间接加热给水降温．则在同样供热量下．发电量增高．但相对原系统来说并不节能。

Before supplying heat energy to users, the exhausting steam's temperature from turbine in a small electric and themal power Plant sometimes is dropped by feedwater spraying. If we replace spraying system by recuperative heat exchanger, the output of generator will increase uncler the same heat load, but it does not stve energy where as the existing system concerned.