结合本视频将Working Process的内容翻译成汉语(p25)。 火力发电厂是如何工作的 How does a Thermal power plant work _-_高清.mp4 In the flame region, much of the heat generated is transferred to boiler tubes which line the walls. The steam water mixture formed in the boiler tubes proceeds to a steam drum, where the vapor and liquid are separated. The liquid is returned to the boiler tubes and the vapor proceeds to a super-heater. There the hot gases leaving the flame region super-heat the saturated steam produced in the boiler section. The super-heated steam proceeds to the turbine, where its thermal energy is converted to mechanical energy. The steam leaving the high-pressure stage of the turbine is reheated in the furnace prior to being sent to the low-pressure sections of the turbine. The steam exiting from the low-pressure turbine proceeds to a condenser. The liquid from the condenser is reheated in regenerative feed-water heaters, using steam bled from the turbine, prior to being returned to the furnace. The feed-water then proceeds to the furnace, where it is brought to near saturation in the economizer. The gases leaving the economizer preheat the entering air and are then discharged through the stack. Particulates in the gas stream are removed by electrostatic precipitators prior to discharge. In newer plants, the exit gases are also scrubbed to remove SO2.