燃气轮机进气系统流场分析
发布时间：2019-06-12 05:17
【摘要】：燃气轮机进气系统是保证燃气轮机正常工作的重要部件之一,其压力损失对燃气轮机性能有较大影响。为保证机组安全运行,通过对某型号地面重型燃气轮机进行进气系统的流场分析,探索气流速度等主要因素对压力损失的影响。在流场分析中,根据混合网格SIMPLE算法和标准k-ε湍流模型,采用FLUENT软件对该进气系统进行数值模拟。分析进气速度与压力损失的关系。结果表明压力损失随着进气速度的增大而增大,最大压力损失出现在弯头内弯处,过渡段和消音段也是损失源之一。应尽可能减少弯头处气流转向带来的影响,同时增加消音片的结构强度。以上研究为该进气系统优化设计提供数据依据。
[Abstract]:Gas turbine intake system is one of the important components to ensure the normal operation of gas turbine, and its pressure loss has a great influence on the performance of gas turbine. In order to ensure the safe operation of the unit, the flow field analysis of the intake system of a certain type of ground heavy gas turbine is carried out, and the influence of air flow velocity and other main factors on the pressure loss is explored. In the flow field analysis, according to the hybrid grid SIMPLE algorithm and the standard k-蔚 turbulence model, the FLUENT software is used to simulate the intake system. The relationship between intake velocity and pressure loss is analyzed. The results show that the pressure loss increases with the increase of intake velocity, and the maximum pressure loss occurs at the inner bend of the elbow, and the transition section and the silencing section are also one of the loss sources. The influence of airflow steering at elbow should be reduced as much as possible, and the structural strength of silencer should be increased at the same time. The above research provides the data basis for the optimal design of the intake system.
【作者单位】： 四川大学制造科学与工程学院;
【分类号】：TK473
[Abstract]:Gas turbine intake system is one of the important components to ensure the normal operation of gas turbine, and its pressure loss has a great influence on the performance of gas turbine. In order to ensure the safe operation of the unit, the flow field analysis of the intake system of a certain type of ground heavy gas turbine is carried out, and the influence of air flow velocity and other main factors on the pressure loss is explored. In the flow field analysis, according to the hybrid grid SIMPLE algorithm and the standard k-蔚 turbulence model, the FLUENT software is used to simulate the intake system. The relationship between intake velocity and pressure loss is analyzed. The results show that the pressure loss increases with the increase of intake velocity, and the maximum pressure loss occurs at the inner bend of the elbow, and the transition section and the silencing section are also one of the loss sources. The influence of airflow steering at elbow should be reduced as much as possible, and the structural strength of silencer should be increased at the same time. The above research provides the data basis for the optimal design of the intake system.
【作者单位】： 四川大学制造科学与工程学院;
【分类号】：TK473
【参考文献】
相关期刊论文 前1条
1 李瑭s，
本文编号：2497769
本文链接：https://www.wllwen.com/kejilunwen/dongligc/2497769.html
