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摘要对安装良好的通风机进行性能试验，在适当的位置和条件下测量出相关参数，并通过传感器和变送器实现数据的传输。然后导入基于GB/T1236-2000《工业通风机用标准化风道进行性能试验》进行数值计算的EXCEL软件，得出计算结果。改变相应的条件，重复计算得到多组结果，根据得到的计算结果绘制通风机性能特性曲线。然后通过对性能曲线的分析，得出能够使得通风机高效运行的工况点，同时避免出现通风机不能正常运行的工况。然后利用特性曲线对通风机的生产进行监控，以便能够合理地设计制造和使用风机。65192
毕业论文关键词 通风机 数值计算 特性曲线 合理工况
毕业设计说明书（论文）外文摘要
Title The design and programming of air flow measuring device
Abstract
When the well-installed fan is tested, the relevant parameters can be measured at an appropriate location and condition. With the data uploaded through sensor and transmitter, the calculated results can be obtained by leading-in the EXCEL software for numerical calculation,which is based on GB/T1236-2000 (the property test with a standardized air duct in the industrial fan). With the corresponding conditions changed, the process of calculation is repeated and a set of results can be acquired,then the fan characteristic curve can be drawed according to the set of results. Through the analysis of characteristic curves, the condition when the fan run efficiently can be known, while the bad condition can be avoided. Meanwhile the fan characteristic curve can be used to supervise the production of fans, and it could be reasonable while designing and using fans.
Keywords: fan calculation the characteristic curve reasonable condition
目录
1 引言 2
1．1 背景 2
1．2 目的和意义 2
2 通风机性能试验装置 3
2．1 装置简介 3
2. 2 通风机安装 6
2. 3 流量测量装置的选择 7
3 参数测量 9
3. 1 压力测量 9
3. 2 温度测量 9
3. 3 转速转矩测量 10
4 自动采集测试系统 11
4. 1 简介 11
4. 2 仪器设备和软件 12
5 计算过程 14
5. 1 已知参数 14
5. 2 计算过程 15
6 数据处理 19
6. 1 通风机性能试验曲线 19
6. 2 最大容许误差 19
6. 3 结果分析 21
结 论 24
致 谢 25
参考文献 26
1 引言
1．1 背景