發(fā)布時間：2018-05-13 16:00

  本文選題：油品儲罐 + 空間電荷密度��； 參考：《華南理工大學(xué)學(xué)報(自然科學(xué)版)》2017年06期

【摘要】：考慮儲罐充裝過程中儲罐內(nèi)空間電荷密度隨填充時間的變化特性,建立了充裝過程中立式柱形儲罐內(nèi)靜電電勢的動態(tài)分布計算模型.對比模型計算結(jié)果與文獻中的實驗測量數(shù)據(jù),驗證了模型的有效性.將該模型用于分析無輸入管道、采用中間鶴管輸入、采用底部管道輸入3種情況下儲罐內(nèi)空間電勢的動態(tài)分布規(guī)律,發(fā)現(xiàn):3種情況下儲罐內(nèi)的空間最大電勢、液面最大電勢均隨油品填充率先增加后降低;底部輸入管道對儲罐內(nèi)靜電電勢分布的影響較小,中間輸入鶴管可以顯著降低儲罐內(nèi)的靜電電勢;采用中間鶴管輸入時,保持油品流量恒定,空間電勢最大值隨鶴管直徑增大而減小,流速恒定時空間電勢最大值則隨鶴管直徑增大而增大.研究結(jié)果能夠為儲罐充裝過程中輸送條件、輸送參數(shù)的選取提供指導(dǎo),以降低充裝過程中的靜電風(fēng)險.
[Abstract]:Considering the change of space charge density with filling time during filling, a dynamic distribution model of electrostatic potential in vertical cylindrical storage tank is established. The validity of the model is verified by comparing the calculated results with the experimental data in the literature. The model is used to analyze the dynamic distribution of the spatial potential in the tank under three conditions, I. E. the input of the middle crane pipe and the input of the bottom pipe. The maximum spatial potential in the tank is found under the three conditions: 1: 3. The maximum potential of liquid level increased first and then decreased with the filling of oil, the influence of bottom input pipeline on electrostatic potential distribution in storage tank was small, and the electrostatic potential in storage tank was significantly decreased by intermediate input crane tube. Keeping the oil flow constant, the maximum value of space potential decreases with the increase of crane pipe diameter, and the maximum value of space potential increases with the increase of crane tube diameter when the flow rate is constant. The results of the study can provide guidance for the selection of transportation conditions and transportation parameters during the filling process of the storage tank and reduce the electrostatic risk during the filling process.
【作者單位】： 華南理工大學(xué)安全科學(xué)與工程研究所;
【基金】：國家自然科學(xué)基金資助項目(21576102)~~
【分類號】：TE88
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本文編號：1883862