余小松
山东新奥能源发展有限公司，山东济南250014
摘要：为解决某瓦斯发电机组可调式文丘里混合器燃气入口开度的标定问题，确保混合器能根据现场瓦斯参数匹配合理空燃比，减少机组现场调试时间和工作量，结合该机组理论燃烧体积空燃比及过量空气系数的要求，采用流体仿真软件ANSYS CFX对某瓦斯发电机组配套的可调节式文丘里混合器进行流场仿真计算，得出不同甲烷体积分数、不同压力的瓦斯在机组正常运行时所需的燃气入口开度。经现场实际验证，标定数据满足机组实际运行需求，可以为瓦斯发电机组现场调试提供数据参考，节省现场运行时的调试时间，节约调试成本。
关键词：可调式文丘里混合器；ANSYS CFX；气体流场；燃气入口开度
Abstract:In order to solve the calibration problem of the gas inlet opening value of the adjustable Venturi mixer for a gas generator set, ensure the reasonable airfuel ratio according to the field gas parameters, and reduce the time and workload of unit commissioning for the gas generator, combined with the theoretical combustion volume airfuel ratio and excess air coefficient requirements,used the fluid simulation software ANSYS CFX to simulate the flow field of an adjustable Venturi mixer for a gas generator set,the gas inlet opening map for the adjustable Venturi mixer under different concentration and pressure of gas are obtained. The actual application shows the calibration data meets the actual operation requirements of the gas generator set,it can provide reference data for gas generator set in scene adjusting, save time and cost when adjusting.
Keywords:adjustable Venturi mixer; ANSYS CFX;gas flow field;gas inlet opening value
|
