摘要
针对高层建筑采暖系统回水余压的利用问题,开发了一种微型混流式水轮机,用以代替采暖系统中的回水阻力调节阀。以某高层采暖系统为例,结合其工作环境特点,确定了水轮机基本参数,并对此水轮机进行了全流道三维数值模拟和优化。结果显示,水轮机效率可达86%以上;水轮机与供暖系统的连接方式分析说明,设计出的微型水轮机效率高、安装方便、减少了电能消耗,从而为水轮机在供暖系统中的应用提供了理论和实践依据。
Aiming at the utilization of backwater pressure of high-rise building heating system, a micro Francis turbine is designed to replace the backwater resistance regulating valve in the heating system. Taking a high rise heating sys tem for an example, the basic parameters of turbine are determined by considering the system＇ s working environment characteristics. And then, a three-dimensional numerical simulation and optimization of the turbine are conducted. Ac- cording to the results, the turbine efficiency can reach 86%. Connection style between the turbine and heating system is analyzed. It can be seen that the newly designed micro Francis turbine has high efficiency and is easy to be installed as well as reduces the power consumption. Therefore, it provides theoretical and practical basis for turbine application in the heating system.
出处
《水电能源科学》
北大核心
2013年第5期155-158,共4页
Water Resources and Power
关键词
微型混流式水轮机
采暖系统
回水阻力
数值模拟
micro Francis turbine
heating system
backwater resistance
numerical simulation
