本文選題：原油儲(chǔ)罐 + 蒸汽盤管　； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：儲(chǔ)油罐需要根據(jù)其儲(chǔ)存介質(zhì)、結(jié)構(gòu)形式與生產(chǎn)需求等制定運(yùn)行方案,油品的儲(chǔ)存溫度通常根據(jù)油品物性及其儲(chǔ)存、輸轉(zhuǎn)等操作需求確定。對(duì)于常溫下粘度較大或者凝點(diǎn)較高的油品,較長時(shí)間儲(chǔ)存時(shí)一般都有最低儲(chǔ)存溫度要求,當(dāng)油品外輸時(shí)由于溫度不能達(dá)到其溫度的最低要求,需要對(duì)儲(chǔ)罐內(nèi)油品進(jìn)行加熱,以降低其粘度,改善流動(dòng)性。同時(shí)需要對(duì)油罐采取各種保溫措施,以保證儲(chǔ)罐的安全運(yùn)行。在制定加熱方案時(shí),需要確定加熱溫度和加熱負(fù)荷等,為此需要準(zhǔn)確掌握油罐內(nèi)油品的溫度分布。完善的油罐內(nèi)油品溫度場規(guī)律研究能夠?yàn)橹贫ò訜岱桨冈趦?nèi)的油罐運(yùn)行方案提供可靠的依據(jù),從而保障油罐的安全高效運(yùn)行。本文根據(jù)原油儲(chǔ)罐傳熱的途徑以及主要特點(diǎn),運(yùn)用分步試算法計(jì)算罐頂、罐壁以及罐底的傳熱系數(shù),建立大型原油儲(chǔ)罐傳熱的理論模型;將分步試算法得到的原油儲(chǔ)罐傳熱系數(shù),運(yùn)用插值的方法代入到推導(dǎo)的儲(chǔ)罐節(jié)點(diǎn)以及內(nèi)部熱源點(diǎn)的非穩(wěn)態(tài)離散方程中,分析罐內(nèi)原油溫度以及邊界溫度在不同影響因素下的變化規(guī)律;通過計(jì)算原油儲(chǔ)罐加熱過程中蒸汽盤管放出的熱量以及被加熱油品所吸收的熱量,確定儲(chǔ)罐的有效利用率,并研究分析采用不同壓力蒸汽進(jìn)行加熱時(shí)不同儲(chǔ)罐液位、外界環(huán)境溫度、加熱終了溫度等工況下有效利用率的變化規(guī)律。
[Abstract]:Oil storage tanks need to make operation plans according to their storage medium, structure form and production demand, and the storage temperature of oil products is usually determined according to the operational requirements such as the physical properties of oil products and their storage, transportation and transfer. For oil products with high viscosity or high freezing point at room temperature, there is generally a minimum storage temperature requirement when stored for a longer period of time. When the oil is transported out of the oil, it is necessary to heat the oil in the tank because the temperature cannot reach the minimum requirement of its temperature. To reduce its viscosity, improve liquidity. At the same time, it is necessary to take various insulation measures to ensure the safe operation of the tank. It is necessary to determine the heating temperature and heating load when making the heating scheme, so it is necessary to accurately grasp the temperature distribution of the oil products in the oil tank. The perfect research on temperature field of oil products in oil tank can provide reliable basis for making operation plan of oil tank including heating scheme, thus ensuring the safe and efficient operation of oil tank. According to the ways and main characteristics of heat transfer in crude oil storage tank, the heat transfer coefficient of tank top, tank wall and tank bottom is calculated by using step by step algorithm, and the theoretical model of heat transfer of large crude oil tank is established in this paper. The heat transfer coefficient of crude oil tank obtained by stepwise test algorithm is replaced by interpolation method into the unsteady discrete equation of the node of the tank and the internal heat source point. The variation law of crude oil temperature and boundary temperature under different influence factors is analyzed, and the effective utilization ratio of storage tank is determined by calculating the heat released by steam coil unit and the heat absorbed by heated oil product during the heating process of crude oil storage tank. The changes of effective utilization ratio under different conditions such as liquid level, ambient temperature and end temperature of storage tank under different pressure steam heating are studied and analyzed.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE972

【共引文獻(xiàn)】

相關(guān)期刊論文 前2條

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相關(guān)博士學(xué)位論文 前2條

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2 楊宏偉;輕質(zhì)燃料油蒸發(fā)損耗控制軟浮頂油罐技術(shù)研究[D];中國礦業(yè)大學(xué);2014年

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本文編號(hào)：2099422