某内陆核电厂常规岛冷却塔配置优化及选型分析
发布时间：2018-07-13 12:41
【摘要】：根据核电机组对常规岛冷却塔冷却能力的要求,某内陆核电厂采用常规冷却塔所需要的冷却面积达22 000 m~2。一机一塔若采用常规冷却塔,面临冷却介质难以穿越塔下雨区到达塔内中部区域的技术瓶颈;一机两塔又面临造价和用地等方面的压力。针对上述问题,提出采用改变填料支撑方式的悬吊式布置、改变冷却塔配风方式的高位收水冷却塔和改进换热方式的双背压凝汽器以及它们之间的组合等解决方案,并采用年最小费用法对上述方案进行技术经济比较,得出不同组合方式下的最优方案,分别给出单背压和双背压机组的冷却塔配置方案。提供了一个经济合理的循环供水系统供业主方选择采用,这对其他核电厂大型冷却塔的设计和优化具有较大的参考价值。
[Abstract]:According to the requirement of cooling capacity of conventional island cooling tower for nuclear power unit, the cooling area required for the adoption of conventional cooling tower in a inland nuclear power plant is 22000 mm2. If a conventional cooling tower is used for one machine and one tower, it is difficult for the cooling medium to pass through the rain area of the tower to reach the central part of the tower, and the two towers face the pressure of cost and land use. In view of the above problems, the solutions are put forward, such as the suspended arrangement of changing the packing support mode, the high water intake cooling tower with changing the air distribution mode of the cooling tower and the double back pressure condenser with improved heat transfer mode, and the combination between them, and so on. By using the annual minimum cost method, the technical and economic comparison of the above schemes is carried out, and the optimal schemes under different combination modes are obtained, and the cooling tower configuration schemes of single back pressure and double back pressure units are given respectively. An economical and reasonable circulating water supply system is provided for the owners to choose and adopt, which is of great reference value for the design and optimization of large cooling towers in other nuclear power plants.
【作者单位】： 深圳中广核工程设计有限公司;
【分类号】：TU991.42
本文编号：2119401
[Abstract]:According to the requirement of cooling capacity of conventional island cooling tower for nuclear power unit, the cooling area required for the adoption of conventional cooling tower in a inland nuclear power plant is 22000 mm2. If a conventional cooling tower is used for one machine and one tower, it is difficult for the cooling medium to pass through the rain area of the tower to reach the central part of the tower, and the two towers face the pressure of cost and land use. In view of the above problems, the solutions are put forward, such as the suspended arrangement of changing the packing support mode, the high water intake cooling tower with changing the air distribution mode of the cooling tower and the double back pressure condenser with improved heat transfer mode, and the combination between them, and so on. By using the annual minimum cost method, the technical and economic comparison of the above schemes is carried out, and the optimal schemes under different combination modes are obtained, and the cooling tower configuration schemes of single back pressure and double back pressure units are given respectively. An economical and reasonable circulating water supply system is provided for the owners to choose and adopt, which is of great reference value for the design and optimization of large cooling towers in other nuclear power plants.
【作者单位】： 深圳中广核工程设计有限公司;
【分类号】：TU991.42
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