發(fā)布時(shí)間：2018-08-18 13:48

【摘要】：本文針對(duì)硫磺在管道中輸送過(guò)程中的出現(xiàn)的靜電等安全問(wèn)題,進(jìn)行了系統(tǒng)的研究,首先分析了硫磺粉體在管道中輸送過(guò)程中產(chǎn)生靜電的本質(zhì)是硫磺粉體與管道摩擦產(chǎn)生的,而硫磺粉體在管道中得運(yùn)動(dòng)狀態(tài)決定了其產(chǎn)生的靜電量。本文應(yīng)用Fluent軟件對(duì)其運(yùn)動(dòng)規(guī)律進(jìn)行了模擬,并根據(jù)管道長(zhǎng)度、變徑、彎度的模擬結(jié)果,采用實(shí)驗(yàn)室試驗(yàn)的方法對(duì)硫磺粉體在管道中摩擦產(chǎn)生靜電與管道長(zhǎng)度變化的情況進(jìn)行研究,得出了在不同長(zhǎng)度的管道摩擦產(chǎn)生靜電大小的規(guī)律;然后對(duì)硫磺粉體在不同管徑、管道彎道、管道漸變的管道中輸送產(chǎn)生的靜電量變化規(guī)律進(jìn)行了研究,以及對(duì)不同含濕量的硫磺粉體在管道中輸送產(chǎn)生的靜電量變化規(guī)律進(jìn)行了研究。根據(jù)Fluent軟件的模擬結(jié)果和實(shí)驗(yàn)室測(cè)試表明,硫磺粉體在輸送過(guò)程中,硫磺粉體在管道中運(yùn)動(dòng)摩擦產(chǎn)生的靜電量隨管道長(zhǎng)度增加而增加,在達(dá)到粉體靜電飽和之前,硫磺粉體輸送產(chǎn)生的靜電量和管道長(zhǎng)度成正相關(guān),并保持增長(zhǎng)的趨勢(shì);在硫磺粉體輸送系統(tǒng)中,管道彎頭越多,產(chǎn)生的靜電量越大;硫磺粉體在較大的管道輸送產(chǎn)生的靜電較小;含濕量越大時(shí)靜電量越小;漸變管徑可以有效的減少硫磺粉體在輸送過(guò)程中產(chǎn)生的靜電量。在上述研究的基礎(chǔ)上,提出了硫磺粉體在輸送過(guò)程中的減少靜電的方法。
[Abstract]:Aiming at the safety problems such as static electricity in the process of sulfur transportation in pipeline, this paper makes a systematic study. Firstly, the essence of static electricity produced by sulfur powder in the transportation process of pipeline is analyzed, which is caused by friction between sulfur powder and pipeline. The amount of static electricity produced is determined by the moving state of sulfur powder in the pipeline. In this paper, Fluent software is used to simulate its motion, and according to the simulation results of pipeline length, diameter change and curvature, By using the method of laboratory test, the static electricity produced by friction of sulfur powder in the pipeline and the variation of the length of the pipe are studied, and the regularity of the static electricity produced by friction in the pipeline with different lengths is obtained, and then the sulfur powder in different pipe diameters is studied. In this paper, the variation law of electrostatic quantity produced by pipeline bend and pipeline gradual change is studied, and the change law of electrostatic quantity produced by sulfur powder with different moisture content in pipeline is also studied. According to the simulation results of Fluent software and laboratory tests, it is shown that during the transportation of sulfur powder, the amount of static electricity produced by moving friction of sulfur powder in the pipeline increases with the increase of the length of the pipe, and before the powder reaches electrostatic saturation, The amount of static electricity produced by sulfur powder transportation is positively correlated with the length of pipe, and the increasing trend is maintained, in the system of sulfur powder transportation, the more bends in the pipe, the more static electricity is produced. The static electricity produced by sulfur powder in large pipeline transportation is smaller; the electrostatic volume is smaller when the moisture content is higher; the gradual pipe diameter can effectively reduce the electrostatic volume of sulfur powder in the process of transportation. On the basis of the above research, the method of reducing static electricity during the transportation of sulfur powder is put forward.
【學(xué)位授予單位】：西南科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TQ125.11

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本文編號(hào)：2189656