化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2015年
6期
1544-1549
,共6页
靳文博%敬加强%田震%王雷振%伍鸿飞
靳文博%敬加彊%田震%王雷振%伍鴻飛
근문박%경가강%전진%왕뢰진%오홍비
蜡沉积厚度%增长趋势%对数模型%模型精度
蠟沉積厚度%增長趨勢%對數模型%模型精度
사침적후도%증장추세%대수모형%모형정도
wax deposit thickness%growth trend%logarithmic model%model accuracy
在分析蜡沉积过程的基础上,基于一定的假设条件,建立了蜡沉积厚度随时间变化的模型。通过提取蜡沉积厚度随时间变化曲线的数据,拟合了模型中的待求常数,并对模型计算值和实验值的吻合程度进行了分析。结果表明:对数模型、指数模型及动平衡模型均能反映蜡沉积厚度随时间的变化趋势,对数模型与实验值的吻合程度最好;指数模型和动平衡模型所得的结果与实验结果的吻合程度相当,在沉积初期,指数模型的吻合程度高于动平衡模型,但当沉积时间接近实验规定时间时,动平衡模型的吻合程度高于指数模型;所建立的模型简单实用,能够反映沉积厚度随时间变化的增长快慢趋势,不同实验数据应用时仍需对各模型的计算精度进一步验证,从而使得选用模型能更好地符合实际。
在分析蠟沉積過程的基礎上,基于一定的假設條件,建立瞭蠟沉積厚度隨時間變化的模型。通過提取蠟沉積厚度隨時間變化麯線的數據,擬閤瞭模型中的待求常數,併對模型計算值和實驗值的吻閤程度進行瞭分析。結果錶明:對數模型、指數模型及動平衡模型均能反映蠟沉積厚度隨時間的變化趨勢,對數模型與實驗值的吻閤程度最好;指數模型和動平衡模型所得的結果與實驗結果的吻閤程度相噹,在沉積初期,指數模型的吻閤程度高于動平衡模型,但噹沉積時間接近實驗規定時間時,動平衡模型的吻閤程度高于指數模型;所建立的模型簡單實用,能夠反映沉積厚度隨時間變化的增長快慢趨勢,不同實驗數據應用時仍需對各模型的計算精度進一步驗證,從而使得選用模型能更好地符閤實際。
재분석사침적과정적기출상,기우일정적가설조건,건립료사침적후도수시간변화적모형。통과제취사침적후도수시간변화곡선적수거,의합료모형중적대구상수,병대모형계산치화실험치적문합정도진행료분석。결과표명:대수모형、지수모형급동평형모형균능반영사침적후도수시간적변화추세,대수모형여실험치적문합정도최호;지수모형화동평형모형소득적결과여실험결과적문합정도상당,재침적초기,지수모형적문합정도고우동평형모형,단당침적시간접근실험규정시간시,동평형모형적문합정도고우지수모형;소건립적모형간단실용,능구반영침적후도수시간변화적증장쾌만추세,불동실험수거응용시잉수대각모형적계산정도진일보험증,종이사득선용모형능경호지부합실제。
On the basis of the analysis of the wax deposition process,based on certain assumptions, the models of wax deposit thickness changes with time were established. By extracting the data of curve of wax deposition thickness with time,the given constants of the models were fitted,and coincidence degree of model calculation value and the experimental value was analyzed. The logarithmic model,exponential model and dynamic balance model could reflect the change trend of wax deposition thickness with time,the coincidence degree of logarithmic model and the experimental results was the best. For exponential model and dynamic balance model,the coincidence degree of model calculation value and the experimental value were much the same,in the initial stage of deposition,the coincidence degree of the exponential model was higher than the dynamic balance model,but when deposition time was closer to the experimental set time,the coincidence degree of the dynamic balance model was higher than the exponential model. The models were simple and practical, and they could also reflect the growth rate trend of wax deposition thickness change with time,the accuracy of each model should be further verified when the models were used for different experimental data,so that the selected models could be truthful and reliable.