本文選題：罐式集裝箱 + 傳熱過(guò)程　； 參考：《華東理工大學(xué)》2012年碩士論文

【摘要】：罐式集裝箱廣泛運(yùn)用于運(yùn)輸各種化工物料、農(nóng)藥和食品等液態(tài)物品。運(yùn)輸過(guò)程中物料不僅需要保溫,而且很多情況下還需要加熱才能完成卸料。罐箱加熱保溫過(guò)程是一個(gè)復(fù)雜的非穩(wěn)態(tài)的傳熱過(guò)程。由于環(huán)境、物料參數(shù),罐箱及加熱保溫結(jié)構(gòu)形式的多樣性,給罐箱的加熱保溫設(shè)計(jì)帶來(lái)了很大難度。用傳統(tǒng)手工計(jì)算無(wú)論從計(jì)算精度還是計(jì)算工作量都是難以完成的,因此采用計(jì)算機(jī)數(shù)值分析是解決這些難點(diǎn)的有效途徑。 針對(duì)一種罐箱建立傳熱過(guò)程的數(shù)值計(jì)算模型,并進(jìn)行合理簡(jiǎn)化。通過(guò)Fluent軟件對(duì)其兩種蒸汽加熱工況進(jìn)行數(shù)值模擬,掌握流體在加熱管中的流動(dòng)特點(diǎn),得到不同工況下每根蒸汽管中的流量、壓力分布情況。研究加熱過(guò)程中罐箱內(nèi)部不同時(shí)刻的溫度場(chǎng)和流場(chǎng)分布及變化情況,掌握加熱時(shí)間的范圍。數(shù)值研究不同保溫層的保溫性能,并針對(duì)一種保溫結(jié)構(gòu)對(duì)罐箱進(jìn)行漏熱數(shù)值分析,考察每個(gè)漏熱面上不同時(shí)刻的漏熱量,得出漏熱分布情況和罐內(nèi)溫降規(guī)律。進(jìn)行現(xiàn)場(chǎng)罐箱加熱試驗(yàn),得到了合理的試驗(yàn)結(jié)果,通過(guò)數(shù)據(jù)對(duì)比,考察數(shù)值分析的準(zhǔn)確性。 本文通過(guò)對(duì)罐箱傳熱過(guò)程的數(shù)值分析及試驗(yàn)研究,得到了一系列重要的參數(shù)結(jié)果,為罐式集裝箱加熱系統(tǒng)和保溫結(jié)構(gòu)的設(shè)計(jì)提供了依據(jù)。
[Abstract]:Tank containers are widely used to transport all kinds of chemical materials, pesticides, food and other liquid items. During transportation, not only heat preservation is required, but also heating is required to discharge the material. The heating and heat preservation process of tank box is a complicated unsteady heat transfer process. Because of the diversity of environment, material parameters, tank box and heating insulation structure, it is very difficult to design the heating and heat preservation of tank box. It is difficult to accomplish the traditional manual calculation whether from the calculation accuracy or the calculation workload. Therefore, the use of computer numerical analysis is an effective way to solve these difficulties. A numerical model of heat transfer process for a tank is established and reasonably simplified. Through the numerical simulation of two steam heating conditions by fluent software, the flow characteristics of the fluid in the heating pipe are grasped, and the flow rate and pressure distribution in each steam pipe under different working conditions are obtained. The distribution and variation of temperature field and flow field in the tank at different times during heating are studied and the range of heating time is grasped. The thermal insulation performance of different insulation layers is studied numerically, and the heat leakage of the tank is analyzed according to a kind of heat preservation structure. The heat leakage at different times on each heat leakage surface is investigated, and the heat leakage distribution and the temperature drop in the tank are obtained. The field tank heating test was carried out and reasonable test results were obtained. The accuracy of numerical analysis was investigated by comparing the data. In this paper, a series of important parameter results are obtained through numerical analysis and experimental study of the heat transfer process of the tank, which provides the basis for the design of the heating system and the insulation structure of the tank container.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TH247

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 羅永欣;門(mén)啟明;姚春榮;趙凱;王學(xué)生;;移動(dòng)容器加熱結(jié)構(gòu)對(duì)流體分布影響的研究[J];化工裝備技術(shù);2013年05期

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本文編號(hào)：2022025