气体燃料控制阀模化试验及数值模拟研究  

Study on Modeling Experiment and Numerical Simulation of Gas Fuel Control Valve

作　　者：陈良奇 王楠 娄聚伟 张嘉耕 王江峰[1] 戴义平[1] CHEN Liangqi;WANG Nan;LOU Juwei;ZHANG Jiageng;WANG Jiangfeng;DAI Yiping(School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,Shaanxi Province,China)

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《动力工程学报》2025年第4期522-527,570,共7页Journal of Chinese Society of Power Engineering

基　　金：国家重大科技专项资助项目(J2019-V-0014-0109)。

摘　　要：气体燃料控制阀作为控制燃气轮机燃料通流的核心部件,直接影响燃气轮机运行的稳定性和安全性。采用低压空气代替燃气,对气体燃料控制阀进行模化设计和试验,对比验证了数值模拟计算的准确性,并对原型参数的气体燃料控制阀进行了数值模拟和流动损失分析。结果表明:在几何相似、压比和马赫数相同以及雷诺数处于自模化区的前提下,模化试验可以较好地反映原型阀门的通流和损失特性,质量流量模拟值与试验值的均方根误差为3.26%;随着阀门开度的增大,阀门扩张段产生的激波减小了阀门前后的压力损失,随着气体燃料控制阀压比的减小,阀门喉部高速区逐渐扩大,流速缓慢减小。As the key component of gas turbine for fuel flow control,gas fuel control valve directly affects the stability and safety of gas turbine operation.Low-pressure air was used to replace gas,and the gas fuel control valve was modeled and tested.The accuracy of the simulation calculation was verified by comparing the results.The numerical simulation and flow loss analysis were conducted on the prototype valve.Results show that based on premise of geometric similarity,the same pressure ratio and Mach numbers,and the Reynolds number in the self-modeling area,the modeling experiment can well reflect the flow and loss characteristics of the prototype valve.The root mean square error of mass flow between the simulated value and the experimental value is 3.26%.As the opening degree of valve increases,the shock wave generated by the valve expansion section can reduce the pressure loss before and after the valve.As the pressure ratio of the gas fuel control valve decreases,the high-speed area of the valve throat gradually expands and the flow rate slowly decreases.

关 键 词：燃气轮机 控制阀 模化试验 马赫数 数值模拟 

分 类 号：TK477[动力工程及工程热物理—动力机械及工程]