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超乖

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来自话题：

仪器设备

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液下泵的选型问题？ 为什么考虑液下泵？这个工况、自吸泵就好了，磁力自吸泵：环保无泄漏。查看更多

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汽轮机真空下降？ 9楼的师傅回答的很全面了，根据真空下降的程度，逐项的排除。查看更多

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求协会版注化专业复习指南电子版！~~~？ 过两天上班了再发给你小弟也求一份，谢谢了 563895415 查看更多

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来自话题：

仪器设备

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工艺技术

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不溶解于甲苯二甲苯的密封圈材料？ 大弹簧单端面的机封，动环与轴套间的密封圈我做密封圈的，家qq987791411查看更多

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脱氯槽异响？ 回复 4# ftcai 在一端的上部气相里查看更多

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来自话题：

说・吧

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一个技术研发管理人员的2014年工作总结—卢斗江【行业区 ...？ 技术研发一直都是国内很多公司的短板，期待您们能取得新的成绩！2014，辛苦了！查看更多

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proii77.1安装？默写系统跟7.1有冲突，两个法子可以解决 1：不换系统的话，可以换个版本的pro-2，本论坛有8.1的，可以去试一试新版的性功能，下载速度挺快的！ 2：换系统，估计你的是番茄花园的系统吧，我以前也遇见过该情况，但是在用比较原版的系统后，就没有出现过该情况！ good luck！查看更多

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连续重整装置（uop）一对一答疑办公室？本帖最后由 baoshengwei 于 2013-4-13 21:48 编辑 140万吨重整，循环氢压缩机有跨线，是为了在循环氢压缩机停车时，跨过循环氢压缩机，用增压机代替循环氢，循环氢压缩机不是作为一级增压查看更多

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您有什么好的除尘措施吗? 考虑能否用水喷淋之类的洗涤方法？循环水冷却塔下面的空气好像不错。查看更多

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连续重整装置（uop）一对一答疑办公室？ 领导非要拿芳烃型重整套燃料型重整！现在是追求效益的年代，理解万岁！查看更多

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对于远距离管道，如果内壁结垢，应该怎样清理? 简单直接把结垢的那段切断重新焊接新的管道不建议清理反而影响管道的使用寿命查看更多

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来自话题：

仪器设备

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涡街流量计探头的构造？ 哪个厂家的？横河？查看更多

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连续重整装置（uop）一对一答疑办公室？电加热在北方和南方冬季的使用上有哪些不同点？电加热器的话，在南北方的区别主要是防潮吧南方雨多、湿度大，要做好防潮工作，避免短路。查看更多

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尿素蒸发运行周期短怎么办? 原帖由金蝉子于 2009-3-19 13:57 发表根本原因是气相带液使尿素在器壁附着逐渐生成缩二脲使真空分离器有效容积大幅减小，这个过程大约就是2~4个月的周期。而气相带液是不可能避免的，因此关键是要解决尿素附着堆积的问题，在不影响正常生产的情况下有效清 ... 请问金蝉子朋友：川天化比较成功的应用经验具体是哪些方面？最好稍为详细一点。期待你的介绍。 [ ]查看更多

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来自话题：

化学学科

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请大家帮忙给点建议，不胜感激？ 你发帖的目的是什么？给你看杂质？还是给你分离杂质？还是提高反应收率？查看更多

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引风机入口带水？ 我们一般是备机出口和风机内带水，焊只球阀排水即可！查看更多

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重重压力下草甘膦企业如何生存？随着信息化速度的加快，人才流动的日益频繁，这个行业技术门槛越来越低了，要拥有持续的竞争力，只有尽快获得磷矿石和煤等基础资源。我担心未来十到二十年，现在山东、江苏的一些化工企业都将因为资源成本瓶颈被两湖川渝挤垮兼并。查看更多

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来自话题：

工艺技术

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再生器密相床层化质量的判断？主要参考再生器床层料位、藏量、压降分布，副之以再生温度分布、压力分布、主风分布等等根据压降，温度分布，密度分布，设备振动等来观察流化状况。床层轴向与径向温度分布均匀，床层波动小，设备振动小，说明流化较好。从相同高度的热偶的温差，床层的压降变化，各点压降变化，各段密度的变化，再生剂的烧焦效果等方面来判断床层的流化质量。 1. 床层温度，主要看同一截面上各点温度的均匀性，如果相差较大，说明流化质量较差； 2. 看设备的振动情况，如果设备振动较大的话，一般说明流化质量较差； 3. 看dcs**层的密度的波动情况，如果波动很大的话，说明流化质量不好。另外，其实床层高度和这个是一回事，因此不可能直接观察到料面的波动，还显示的料面高度实际上也是通过床层密度和床层总压降换算过来的。通过以下手段来粗略判断床层流化质量： 1、观察床层轴向温度和径向温度是否均匀。 2、观察床层压降波动幅度、频率是否小。 3、设备和支架有无明显振动。 1、再生器的轴向温度。 2、旋风器入口温度以及密度变化。 3、稀密相温差、密度波动变化。 4、设备振动情况。用耳朵来听声音来确定流化质量的好坏查看更多

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来自话题：

说・吧

，

关于合成氨的毕业论文？楼主，在发资料的时候最好把目录和摘要写下，让大家看的一目了然，楼主的题目也有点大，其实你这篇东西就是8 万吨/年合成氨装置中合成系统的设计（本科学生毕业论文）我帮你把目录发下，让大家有个了解。目录设计任务书开题报告设计说明第一章合成氨综述·················································································· 1 一．合成氨工业在国民经济中的地位··························································· 1 二、原料路线及资源开发利用···································································· 1 三、未来我国合成氨工业发展方向······························································ 2 第二章合成工序工艺计算····························································.·············4 1 物料衡算···························································································· 4 1.1 计算依据·························································································· 4 1.2 计算物料点流程 ················································································ 5 1.3 物料计算··························································································· 5 1.3.1 合成塔入口气组分 ···········································································5 1.3.2 合成塔出口气组分 ············································································ 5 1.3.3 合成率 ··························································································· 5 1.3.4 氨分离器气液平衡计算······································································· 6 1.3.5 冷交换器气液平衡计算······································································ 8 1.3.6 液氨贮槽气液平衡计算 ···································································· .9 1.3.7 液氨贮槽物料计算 ············································································ 12 1.3.8 合成系统物料计算 ············································································ 13 1.3.9 合成塔物料计算 ················································································ 15 1.3.10 水冷器物料计算 ············································································ 15 1.3.11 氨分离器物料计算 ········································································ 16 1.3.12 冷交换器物料计算 ········································································ 16 1.3.13 氨冷器物料计算 ············································································ 17 1.3.14 冷交换器物料计算 ········································································ 18 1.3.15 液氨贮槽物料计算 ········································································ 20 1.3.16 物料计算汇总表 ············································································ 21 2 热量衡算 ································································································· 26 2.1 冷交换器热量计算示意图 ······································································26 2.2 氨冷器热量计算 ···················································································· 28 2.3 循环机热量计算 ···················································································· 30 2.4 合成塔热量计算 ···················································································· 32 2.5 废热锅炉热量计算···················································································· 34 2.6 热交换器热量计算···················································································· 35 2.7 水冷器热量计算 ···················································································· 36 2.8 氨分离器热量核算···················································································· 38 3 主要[wiki]设备[/wiki]计算····························································································· 38 3.1 废热锅炉设备工艺计算 ········································································ 38 3.2 热交换器设备工艺计算 ········································································ 42 3.3 水冷器设备工艺计算 ·········································································· 47 3.4 冷交换器设备工艺计算 ···························································· 49 3.5 氨冷器设备工艺计算 ······································································ 55 结束语致谢参考文献附录合成工序设计符号表主要设备及工艺条件一览表查看更多

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来自话题：

工艺技术

，

焦化吸收稳定中干气组分？干气的意思就是尽量不含c3以上的组分，这样损失最小，效益好。焦化干气的下游装置是啥，其实用色谱分析，组成是一下子出来的，你们需要控制一氧化碳、二氧化碳吗？加氢装置催化剂怕一氧化碳，如果去psa提纯氢气或别的组分，是考虑剂种匹配，平时是不需要控制的。查看更多

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简介

职业：上海益丝科贸有限公司 - 设备维修

学校：山东丝绸纺织职业学院 - 染化工程系

地区：山西省

个人简介：真正的友谊无论从正反看都应一样，不可能从前面看是蔷薇而从后面看是刺。查看更多

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