感潮河段电厂温排水热影响范围的特征分析

An Analysis of Extent of Hoated Effluent Field of a Thermal Power Plants in Tidal Reaches

本文根据二维平面浮射流的基本概念及感潮河段水文特征,综合分析了感潮河段电厂温排水的运动规律.利用原体观测的资料,建立了估算射流中心线温升的函数关系和估算等温升线所包围的表面积的经验公式.本文分析研究的结果,对于客观地评价电厂运行时温排水热影响范围、制定排放标准,具有一定的实际价值.

The movement of cooling water effluent of the thermal power plant has been synthetically analysed in this paper in terms of the concept of two dimensional buoyant jet and the hydrologic characteristics in tidal reaches.The functional relations for estimating the jet center-line excess temperature and empirical formulae for calculating the surface area enclosed by the temperature-rise isotherm have been established based on the data obtained from field observations.The results in this paper have practical values for objectively assessing the extent of heated effluent field during plant operation and stipulating thermal pollution standards of cooling water effluent.