Knowledge Resource Center for Ecological Environment in Arid Area
ANALYSIS OF A LARGE-SCALE COOLING SYSTEM FAN GEARBOX LOADS | |
Lombard, Charles H. O.1; Els, Daniel N. J.1; Muiyser, Jacques1; Zapke, Albert2 | |
通讯作者 | Lombard, Charles H. O. |
会议名称 | ASME Turbo Expo: Turbine Technical Conference and Exposition |
会议日期 | JUN 26-30, 2017 |
会议地点 | Charlotte, NC |
英文摘要 | South Africa's coal-fired power stations use super heated steam to drive generator turbines. In arid regions, air-cooled condensers (ACCs) are used to condense the process steam. These ACCs consists of an array of over 200 axial flow fans, each driven by a motor via a reduction gearbox. Distorted fan inlet air flow conditions cause transient blade loading, which results in variations in output shaft bending and torque. A measurement project was conducted where the input and output shaft of such a gearbox were instrumented with strain gauges and wireless bridge amplifiers. Gearbox shaft speed and vibration were also measured. Torsional and bending strains were measured for a variety of operational conditions, where correlations were seen between gearbox loading and wind conditions. The input side experienced no unexpected loads from the motor or changing wind conditions, whereas output shaft loading was influenced by the latter. Digital filters were applied to identify specific bending components, such as the influence of fan hub misalignment and dynamic blade loading. Reverse loading of the gearbox was measured during the fan stop period, and vibration analysis revealed torsional and gearbox vibrations. This investigation documented reliable MI scale ACC gearbox loads. |
来源出版物 | PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2017, VOL 1 |
出版年 | 2017 |
ISBN | 978-0-7918-5077-0 |
出版者 | AMER SOC MECHANICAL ENGINEERS |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | South Africa;Germany |
收录类别 | CPCI-S |
WOS记录号 | WOS:000412622900040 |
WOS类目 | Engineering, Aerospace ; Engineering, Marine ; Engineering, Mechanical |
WOS研究方向 | Engineering |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/306497 |
作者单位 | 1.Univ Stellenbosch, Mech & Mech Engn, Stellenbosch, South Africa; 2.ENEXIO Management GmbH, Dorstener Stasse 18-29, D-44651 Herne, Germany |
推荐引用方式 GB/T 7714 | Lombard, Charles H. O.,Els, Daniel N. J.,Muiyser, Jacques,et al. ANALYSIS OF A LARGE-SCALE COOLING SYSTEM FAN GEARBOX LOADS[C]:AMER SOC MECHANICAL ENGINEERS,2017. |
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