本文選題：渦輪流量計(jì)　切入點(diǎn)：流體溫度　出處：《上海工程技術(shù)大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：渦輪流量計(jì)是一種測量流體流量的計(jì)量用具,其主要用途是定量計(jì)量氣體或液體。目前國內(nèi)的渦輪流量計(jì)生產(chǎn)廠家大多使用標(biāo)準(zhǔn)表法檢定裝置或負(fù)壓法音速文丘里噴嘴檢定裝置對渦輪流量計(jì)進(jìn)行常溫常壓下的檢定,但在渦輪流量計(jì)的實(shí)際應(yīng)用中經(jīng)常出現(xiàn)與檢定工況差異較大的情況。隨著工況條件的改變,渦輪流量計(jì)的計(jì)量性能也將受到影響。本文進(jìn)行了若干工況條件下渦輪流量計(jì)性能的研究,主要研究內(nèi)容如下:(1)分析了渦輪流量計(jì)的工作原理并建立數(shù)學(xué)模型,根據(jù)數(shù)學(xué)模型分析了渦輪流量計(jì)產(chǎn)生測量誤差的原因;(2)對比分析渦輪流量計(jì)的國家標(biāo)準(zhǔn)和歐洲標(biāo)準(zhǔn)之間的差異,為研究渦輪流量計(jì)的性能提供依據(jù);(3)搭建渦輪流量計(jì)常溫常壓實(shí)驗(yàn)臺,進(jìn)行不同葉輪角度和不同軸承及不同的軸承安裝位置條件下渦輪流量計(jì)性能的實(shí)驗(yàn)研究,并結(jié)合理論進(jìn)行分析;(4)搭建渦輪流量計(jì)低溫常壓實(shí)驗(yàn)臺,對氣體渦輪流量計(jì)在流體溫度從-25℃至40℃變化的工況條件下進(jìn)行了實(shí)驗(yàn),研究分析了流體溫度變化對渦輪流量計(jì)性能的影響,并結(jié)合理論進(jìn)行對比分析;(5)搭建渦輪流量計(jì)常溫高壓實(shí)驗(yàn)臺,對氣體渦輪流量計(jì)在流體壓力從1.5bar至8bar變化的工況條件下進(jìn)行了實(shí)驗(yàn),研究分析了流體壓力變化對渦輪流量計(jì)性能的影響,并結(jié)合理論進(jìn)行對比分析。
[Abstract]:A turbine Flowmeter is a measuring device for measuring fluid flow. The main purpose is to measure gas or liquid quantitatively. At present, most of the domestic turbine Flowmeter manufacturers use the calibration device of standard meter method or the negative pressure method of Venturi nozzle to calibrate the turbine Flowmeter at room temperature and atmospheric pressure. However, in the practical application of turbine Flowmeter, there is often a big difference from the calibration condition. The metering performance of turbine Flowmeter will also be affected. In this paper, the performance of turbine Flowmeter under some working conditions is studied. The main research contents are as follows: 1) the working principle of turbine Flowmeter is analyzed and the mathematical model is established. According to the mathematical model, the cause of measurement error of turbine Flowmeter is analyzed. (2) the difference between national standard and European standard of turbine Flowmeter is compared and analyzed. In order to study the performance of turbine Flowmeter, an experimental platform of turbine Flowmeter at room temperature and atmospheric pressure was built, and the performance of turbine Flowmeter was studied under different impeller angles, different bearings and different bearing mounting positions. Based on the theoretical analysis, an experimental platform for turbine Flowmeter at low temperature and atmospheric pressure was built. The gas turbine Flowmeter was tested under the condition of fluid temperature changing from -25 鈩，

本文編號：1578753