trader第1期王福春.气流输送装置故障原因分析及对策47
维修处理，有效减少了仓泵发生反吹的次数，避免气相污染发生。
4.2.2阀门内漏
1）加强巡检，发现问题及时联系处理，实施后，使阀门内漏故障能够得到及时处理，有效避免发生气相污染事故。
2）定期检查维护，加强计划检修，发现阀垫破损及时更换。
4.2.3圆筒仓顶部泄漏
视听英语1）加强检查确保圆筒仓顶部及管线无漏点，实施后，有效减少了漏点出现的次数，即使出现漏点也能及时消除。
tpk
2）当吹送管线切至圆筒仓送料时，确保圆筒仓袋式除尘器风机处于运行状态。实施后，保证了管线切至圆筒仓后吹送过程处于负压状态，有效免了气相污染事故发生的损坏。
3）加强检查确保袋式除尘器工作正常，保证圆筒仓气除尘的效果，免气相污染。
4）规定圆筒仓料位不超16m，使圆筒仓顶部的空间量更。
在线英语发音词典
5结束语
htk实施系的施，了气送运行不定气相污染问题，有效了气流输送运行时间，减少了气送气相污染事故的发生，确保了的定运行免气相污染的。
dohcFAILURE CAUSE ANALYSIS ON AIR CONVEYER
Wang Fuchun
{Tianji.Coal Chemical Group Co.，Ltd.，Changzhi047507)
客人的英文>伦敦奥运会 刘翔Abstract:Some failures easily to be happened on air conveyer during its operation were analyzed to find the reason of unstable operation and gas pha pollution.Some improvements were made on the process，equipment and maintenance to avoid gas pha pollution and to achieve stable operation.
vegetables怎么读
Key words:air conveyer；block；gas pha pollution
(上接第20页)
(SINOPEC Ningbo Engineering Co.，Ltd.，Shanghai Branch，Shanghai200030# Abstract:For some chemical equipment，their actual opening diameter is smaller than the nozzle diameter.The finite element method(FEM)is ud for a ries of ca analysis.The study found that:the shell within the nozzle diameter and the short tube both have a great strengthening effect on the structure of the opening，but the short tube size is not necessary and should not be too large.And，if the stiffness of the nozzle is greater than the cylinder，it may cau greater deformation of the cylinder and generate greater bending stress at the discontinuity of the structure.Therefore，increasing the thickness of the cylinder should be adopted to strengthen the structure.
Key words:pressure vesl；large openings；openings and reinforcements；finite element analysis
窃听风暴影评2020年中国乙二醇进口>022万吨
2020年，乙二醇进口共计1022万吨，较2019年增加2.7%。涉及运输船舶271艘，798航次，卸货作业1406次。前三大进口来源为沙特阿拉伯、中国台湾和加拿大，货量占比分别为40%%12%和11%&卸货港口主要为张家港、宁波和太仓，前三大港口卸货量占进口量的65%。
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