低溫儲(chǔ)罐預(yù)冷過(guò)程預(yù)測(cè)
發(fā)布時(shí)間:2018-04-27 07:44
本文選題:低溫儲(chǔ)罐 + 預(yù)冷預(yù)測(cè); 參考:《低溫工程》2017年05期
【摘要】:為了能輸送和存儲(chǔ)單相低溫液體,保證輸送管道和低溫儲(chǔ)罐的安全,預(yù)冷過(guò)程不可或缺。對(duì)預(yù)冷時(shí)間、預(yù)冷介質(zhì)消耗量進(jìn)行預(yù)測(cè)有利于指導(dǎo)實(shí)際操作。從熱力學(xué)基本理論出發(fā),采用穩(wěn)態(tài)與變熱導(dǎo)率的熱力學(xué)分析方法,建立儲(chǔ)罐預(yù)冷時(shí)間與預(yù)冷介質(zhì)消耗量數(shù)學(xué)模型,推導(dǎo)了儲(chǔ)罐溫度隨時(shí)間的變化關(guān)系,探討進(jìn)口流量與預(yù)冷時(shí)間、預(yù)冷介質(zhì)消耗量之間的相互影響。將不同的計(jì)算方法相結(jié)合,指導(dǎo)選取最佳預(yù)冷流量。
[Abstract]:In order to transport and store single phase cryogenic liquid and ensure the safety of pipeline and cryogenic storage tank, the precooling process is indispensable. The prediction of precooling time and consumption of precooled medium is helpful to guide practical operation. Based on the basic theory of thermodynamics, the mathematical model of precooling time and consumption of precooled medium is established by using the thermodynamic analysis method of steady state and variable thermal conductivity, and the relationship between tank temperature and time is deduced. The interaction between inlet flow rate, precooling time and consumption of precooling medium is discussed. Different calculation methods are combined to guide the selection of optimal precooling flow rate.
【作者單位】: 浙江大學(xué)制冷與低溫研究所;浙江省制冷與低溫技術(shù)重點(diǎn)實(shí)驗(yàn)室;中國(guó)空氣動(dòng)力研究與發(fā)展中心;
【基金】:國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(51636007) 國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(SQ2017YFGX050091)
【分類號(hào)】:TB658
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本文編號(hào):1809866
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