CAJ | 학술논문

以600MW间接空冷设备为例，采用数值模拟方法分析了三塔合一的污染物扩散、环境影响、结构优化问题。结果表明：受环境温度影响，空冷塔传热量冬季最高，夏季最低；随环境风速的增加，迎风面传热增强，侧风面与背风面传热减弱；与烟囱相比，采用空冷塔排烟，污染物扩散更广、受环境风影响更小；脱硫塔排烟口越高、口径越小，烟气扩散越广；外部挡风墙可减小环境风对塔侧的压制，内部挡风墙可削弱塔内热空气的旋转。
이600MW간접공랭설비위례，채용수치모의방법분석료삼탑합일적오염물확산、배경영향、결구우화문제。결과표명：수배경온도영향，공랭탑전열량동계최고，하계최저；수배경풍속적증가，영풍면전열증강，측풍면여배풍면전열감약；여연창상비，채용공랭탑배연，오염물확산경엄、수배경풍영향경소；탈류탑배연구월고、구경월소，연기확산월엄；외부당풍장가감소배경풍대탑측적압제，내부당풍장가삭약탑내열공기적선전。
The 600MW indirect air cooling device as an example , the problems of three-towers-in-one about pollutant diffusion, environmental impact , structural optimization were analyzed with numerical simulation method .Results illustrate that:due to influence of environment temperature , air cooling tower heat transfer is highest in winter , lowest in summer;with increase of wind speed , heat transfer of the windward surface enhance , heat transfer of side surface and leeward surface decrease;compared with chimney , using air cooling tower remove flue-gas makes pollutant diffusion wider and less environment influence;gas outlet of desulfurization tower more high and less , flue-gas spread more widely; the external windbreak wall can reduce the suppress of wind on the side of the tower , the internal windbreak wall can weaken the rotation of hot air in tower .