典型平原河网地区河道温排水影响研究

Study on influence of warm water drainage in typical plain river network region

研究以苏南某市蓄水包围区为研究对象,建立了一维河网水动力水温数学模型,根据蓄水包围区的调度方案和能源站的排水特征,制定了3组计算方案。计算结果表明:能源站温排水对于蓄水包围区的影响具有两面性,排水会对包围内多条河道水温产生影响,又可为蓄水包围创造一个活水水源。通过对周围的控制闸站进行合理调度,能源站温排水带来的温升影响可被有效降低,同时蓄水包围内水体流动性也可得到增加。

Taking the water storage encircling area of a city in Southern Jiangsu as the research object, amathematical model of hydrodynamic temperature of the one-dimensional river network was established.According to the scheduling scheme of the water storage encircling area and the drainage characteristics of theenergy station, 3 groups of calculation schemes had been formulated. The calculation results showed that theinfluence of temperature drainage on the water storage encircling area had two sides. On the one hand, the drainagewould affect the water temperature of many rivers surrounding the river. On the other hand, it could create a livingwater source. By reasonable dispatching of the surrounding control gate stations, the temperature rise effect causedby the temperature drainage of the energy station could be effectively reduced, and the flow of water could beincreased at the same time.