發(fā)布時間：2019-06-12 05:17

【摘要】：燃?xì)廨啓C進氣系統(tǒng)是保證燃?xì)廨啓C正常工作的重要部件之一,其壓力損失對燃?xì)廨啓C性能有較大影響。為保證機組安全運行,通過對某型號地面重型燃?xì)廨啓C進行進氣系統(tǒng)的流場分析,探索氣流速度等主要因素對壓力損失的影響。在流場分析中,根據(jù)混合網(wǎng)格SIMPLE算法和標(biāo)準(zhǔn)k-ε湍流模型,采用FLUENT軟件對該進氣系統(tǒng)進行數(shù)值模擬。分析進氣速度與壓力損失的關(guān)系。結(jié)果表明壓力損失隨著進氣速度的增大而增大,最大壓力損失出現(xiàn)在彎頭內(nèi)彎處,過渡段和消音段也是損失源之一。應(yīng)盡可能減少彎頭處氣流轉(zhuǎn)向帶來的影響,同時增加消音片的結(jié)構(gòu)強度。以上研究為該進氣系統(tǒng)優(yōu)化設(shè)計提供數(shù)據(jù)依據(jù)。
[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.
【作者單位】： 四川大學(xué)制造科學(xué)與工程學(xué)院;
【分類號】：TK473

【參考文獻】

相關(guān)期刊論文 前1條

1 李瑭s，

本文編號：2497769