供热管网中阀门工作流量特性实验研究与数值模拟

Experimental Investigation and Numerical Simulation of Valve Flow Characteristics in the Heating Networks

供热管网中阀门的工作流量特性对管网的运行效果有着直接的影响。本文通过搭建仿真试验台,研究了供热系统二次管网中几种常用阀门的工作性能,并分析了不同阀门有效调节范围及调节能力的大小。然后借助FloMASTER软件建立了热源至热用户模型,针对蝶阀依据其技术参数对软件中阀门控制曲线参数进行设置,并对供热二次管网运行规律进行数值模拟,仿真计算出各个管段流量分配。结果表明,数值模拟结果有较高的准确性。

The operating fow characteristics of the valve in the heating pipe network have a direct impact on the operation of the pipe network. By setting up a simulation test bench, the work fow characteristics of several common valves in the secondary pipe network of the heating system were studied, and the effective adjustment range and adjustment capacity of different valves were analyzed. Then the FloMASTER software was used to establish the heat source-to-heat user model. According to the technical parameters of the butterfy valve, the valve control curve parameters in the software were set, and the operation rules of the heating secondary pipe network were numerically simulated, and the fow distribution of each pipe section was simulated. The results showed that the numerical simulation results had higher accuracy.