本文選題：非插入式測(cè)量　切入點(diǎn)：質(zhì)量流量　出處：《石油與天然氣化工》2017年02期

【摘要】：非插入式流量檢測(cè)方法在不破壞系統(tǒng)工作狀態(tài)的情況下,可對(duì)化工生產(chǎn)進(jìn)行流量測(cè)量以及化工管道系統(tǒng)故障診斷、故障定位。該非插入式測(cè)量方法利用變形法原理,采用應(yīng)變測(cè)量技術(shù)測(cè)量重力場(chǎng)下流體對(duì)管道作用產(chǎn)生的應(yīng)變,推導(dǎo)出應(yīng)變率與質(zhì)量流量的關(guān)系;結(jié)合彈性力學(xué)和材料力學(xué)推導(dǎo)出管壁應(yīng)變差與質(zhì)量流量存在典型的線性關(guān)系;然后運(yùn)用Workbench建立仿真模型并通過(guò)單向流固耦合的仿真方法,對(duì)理論計(jì)算進(jìn)行驗(yàn)證;最后在管路綜合特性實(shí)驗(yàn)臺(tái)布置應(yīng)變片連接到uT7110Y靜態(tài)應(yīng)變儀,記錄相應(yīng)數(shù)據(jù),根據(jù)數(shù)據(jù)擬合結(jié)果說(shuō)明應(yīng)變差與質(zhì)量流量具有很好的線性關(guān)系,能夠利用該特性進(jìn)行非插入式質(zhì)量流量的測(cè)量。
[Abstract]:The non-plugged flow detection method can be used to measure the flow of chemical industry without destroying the working state of the system, and to diagnose and locate the fault of chemical pipeline system. The non-inserted flow detection method utilizes the principle of deformation method. Strain measurement technique is used to measure the strain produced by fluid acting on pipeline under gravity field, and the relationship between strain rate and mass flow rate is deduced, and a typical linear relationship between tube wall strain difference and mass flow rate is deduced by combining elastic mechanics and material mechanics. Then the simulation model is established by Workbench and the theoretical calculation is verified by unidirectional fluid-solid coupling simulation method. Finally, strain gauges are connected to the uT7110Y static strain gauge on the pipe comprehensive characteristic test bench, and the corresponding data are recorded. The results of data fitting show that the strain difference has a good linear relationship with the mass flow rate, and it can be used to measure the non-inserted mass flow rate.
【作者單位】： 中北大學(xué)機(jī)械與動(dòng)力工程學(xué)院;中北大學(xué)計(jì)算機(jī)與控制工程學(xué)院;
【分類(lèi)號(hào)】：TQ056.15
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本文編號(hào)：1676699