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基于ADAMS和ANSYS Workbench的气浮导轨防脱气浮塔优化设计 被引量:4
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作者 叶必卿 岳浩浩 +1 位作者 蔡健 商尧军 《机电工程》 CAS 北大核心 2018年第11期1205-1209,共5页
针对在太阳翼展开过程中,气浮吊挂滑车偏向横导轨单边导致气浮垫脱落甚至横导轨卡死等问题,对气浮导轨的防脱气浮塔应力和变形进行了研究。对气浮导轨的防脱气浮塔进行了分析,提出了一种基于ADAMS和ANSYS Workbench联合仿真的方法,运用S... 针对在太阳翼展开过程中,气浮吊挂滑车偏向横导轨单边导致气浮垫脱落甚至横导轨卡死等问题,对气浮导轨的防脱气浮塔应力和变形进行了研究。对气浮导轨的防脱气浮塔进行了分析,提出了一种基于ADAMS和ANSYS Workbench联合仿真的方法,运用Solid Works对气浮导轨进行了三维建模,导入ADAMS建立了其多体动力学分析模型,通过动力学仿真分析分别得出了气浮导轨在载荷偏向单边的加速运动过程中防脱气浮塔所受的最大动载荷,利用ANSYS Workbench建立了其有限元模型,对防脱气浮塔进行静强度分析,计算得出了防脱气浮塔的应力、变形,并运用ANSYS Workbench对防脱气浮塔进行结构优化设计,并对优化前后的防脱气浮塔进行对比分析。研究结果表明:优化后的防脱气浮塔的应力和变形大大减小,证明了优化方案的可行性。 展开更多
关键词 导轨 防脱气浮塔 ADAMS ANSYS WORKBENCH 优化设计
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浮伐塔改造为填料塔的气割技术
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作者 吴荣昌 成其谦 《石油工程建设》 北大核心 1990年第4期46-47,共2页
在30万t乙烯装置改造中,将浮伐塔改为高效填料塔对节能增效起着重要作用。从1984年至今,我厂承担了燕山和齐鲁石化公司的乙烯和其它装置数具塔的改造,深感在浮伐塔改造中气割问题对保证传质效果和塔体本身的安全是至关重要的。 1 浮伐... 在30万t乙烯装置改造中,将浮伐塔改为高效填料塔对节能增效起着重要作用。从1984年至今,我厂承担了燕山和齐鲁石化公司的乙烯和其它装置数具塔的改造,深感在浮伐塔改造中气割问题对保证传质效果和塔体本身的安全是至关重要的。 1 浮伐塔改为填料塔中的气割特点高效填料塔的结构要求将旧浮伐塔中很多层塔盘支承圈、降液板支承板等内件拆除、切割,然后安装加料器、液体分配器、液体再分布器、床层限制器、填料、支承板、通道、集液盘等内件。其中切割工作具有量大。 展开更多
关键词 改造 填料 气割 乙烯装置
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桂林地区水库浮箱式竖塔型表层取水结构
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作者 吴文玉 《农田水利与小水电》 1993年第8期22-23,共2页
随着农业的发展,迫切需要取用水库表层温水进行灌溉,以提高农作物产量。目前国内一般采用固定塔式分层取水闸门,但都存在闸门漏水比较严重的问题。桂林地区参照国内外有关资料和实地考察,
关键词 水库 取水结构 箱式竖
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旋流浮动式塔盘
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作者 赖文衡 《北京林业学院学报》 1979年第1期167-188,共22页
板式塔的生产能力,常受雾沫夹带的限制。传统的塔板大都靠重力来分离雾沫,其生产能力就为重力沉降所束缚。虽然可在板上加装分离器来提高生产能力,但将造成结构复杂、阻力过大等缺点。 如果把相接触过程从重力场移到离心力场中去进行,... 板式塔的生产能力,常受雾沫夹带的限制。传统的塔板大都靠重力来分离雾沫,其生产能力就为重力沉降所束缚。虽然可在板上加装分离器来提高生产能力,但将造成结构复杂、阻力过大等缺点。 如果把相接触过程从重力场移到离心力场中去进行,即把传质和离心分离密切结合在一起,当可突破重力沉降对塔板雾沫分离的束缚,使生产强度得以大幅度的提高。问题就是如何以比较简单的结构,不太大的阻力来建立起离心力场。 展开更多
关键词 旋流动式 浮塔 精馏
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一种深海采油平台Spar建造方案的研究实施 被引量:1
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作者 李艳 邵晨国 《中国海洋平台》 2015年第2期32-35,共4页
该文结合国内船厂的设施及设备状况,根据某一深水采油Spar平台的结构特点及总体建造技术,对其结构总体建造方案进行了详细研究,重点阐述了总体建造方法及技术要求。实践证明,该建造方案行之有效,也为同类深水采油平台的制造提供了参考。
关键词 深海采油平台Spar 浮塔 总体建造方案
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RH—XF型糠醛分批精馏装置
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作者 赖文衡 姜浩 王体科 《北京林业学院学报》 1985年第2期24-35,共12页
本文分析了习用夹套蛇管釜微分蒸馏糠醛,精制率低、能耗高的问题。改用热虹吸式再沸器减轻热破坏,旋浮塔(the cyclonic floating tray)分批精馏提高一次精制率及回收率。生产应用表明,本装置可使总精制率从84%提高到87.5%以上,且投资... 本文分析了习用夹套蛇管釜微分蒸馏糠醛,精制率低、能耗高的问题。改用热虹吸式再沸器减轻热破坏,旋浮塔(the cyclonic floating tray)分批精馏提高一次精制率及回收率。生产应用表明,本装置可使总精制率从84%提高到87.5%以上,且投资不多,简单易行。 展开更多
关键词 RH-XF型 糠醛 分批精馏装置 浮塔 精制工艺
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Numerical Simulation and Analysis of Gas Flow Field in Serrated Valve Column 被引量:12
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作者 王良华 崔觉剑 姚克俭 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2008年第4期541-546,共6页
A three-dimensional computational fluid dynamics (CFD) model for gas flow through a serrated valve tray was presented. The flow field, as well as the dry-pressure drop of the valve under the full-opening condition w... A three-dimensional computational fluid dynamics (CFD) model for gas flow through a serrated valve tray was presented. The flow field, as well as the dry-pressure drop of the valve under the full-opening condition was simulated based on the proposed model by using FLUENT 6.0 software. Compared with the values of dry-pressure dro.p in different turbulent models, the.simulated.results using RNG κ-ε model are in reasonable agreement with experimental data, indicating that RNG κ-ε model is suitable in simulating gas flow through the serrated valve tray. Then the CFD model combining RNG κ-ε model was used to study the three-dimensional gas flow through the considered serrated valve tray. The simulated results showed that various eddies existed on the serrated valve tray, and both the eddy and the non-eddy areas were nearly equal. The existence of addendum can decrease the eddy area caused by gas passing through the lateral outlet slots. The size of eddies can be reduced by optimizing the distance between valves. 展开更多
关键词 serrated valve numerical simulation pressure drop RNG κ-ε turbulent model
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A Novel SiC Foam Valve Tray for Distillation Columns 被引量:9
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作者 张吕鸿 刘学宽 +6 位作者 李鑫钢 高鑫 隋红 张劲松 杨振明 田冲 李洪 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2013年第8期821-826,共6页
The novel SiC foam valve tray was made of thin slices of SiC foam material with a high specific surfacearea. Hydrodynamic performances of the novel SiC foam valve tray were studied with air-water system at atmos-pheri... The novel SiC foam valve tray was made of thin slices of SiC foam material with a high specific surfacearea. Hydrodynamic performances of the novel SiC foam valve tray were studied with air-water system at atmos-pheric pressure. These performance parameters included pressure drop, entrainment, weeping and clear liquidheight. The mass transfer efficiency of the SiC foam valve tray was measured in laboratory plate column. Comparedwith the F1 float valve tray, the dry pressure drop was decreased about 25%, the entrainment rate was about 70%lower at high gas load, the weeping was much better, and the mass transfer efficiency was far higher. Thus, theoverall performance of the novel SiC foam valve tray was better than that of F1 float valve tray. 展开更多
关键词 SiC foam valve tray hydrodynamic performance mass transfer efficiency F1 float valve tray
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CFD gas–liquid simulation of oriented valve tray 被引量:2
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作者 马玉凤 纪利俊 +4 位作者 张杰旭 陈葵 武斌 吴艳阳 朱家文 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第10期1603-1609,共7页
Computational fluid dynamics(CFD) has recently emerged as an effective tool for the investigation of the hydraulic parameters and efficiency of tray towers.The computation domain was established for two types of orien... Computational fluid dynamics(CFD) has recently emerged as an effective tool for the investigation of the hydraulic parameters and efficiency of tray towers.The computation domain was established for two types of oriented valves within a tray and meshed into two parts with different grid types and sizes.The volume fraction correlation concerning inter-phase momentum transfer source was fitted based on experimental data,and built in UDF for simulation.The flow pattern of oriented valve tray under different operating conditions was simulated under Eulerian-Eulerian framework with realizable k-ε model.The predicted liquid height from CFD simulation was in good agreement with the results of pressure drop and volume fraction correlations.Meanwhile,the velocity distribution and volume fraction of the two phases were demonstrated and analyzed,which are useful in design and analysis of the column trays. 展开更多
关键词 CFD simulation Oriented valve tray Gas–liquid flow Volume fraction correlation
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Numerical Simulation on Floating Behavior of Buoyancy Tank Foundation of Anemometer Tower 被引量:1
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作者 丁红岩 韩艳丽 张浦阳 《Transactions of Tianjin University》 EI CAS 2014年第4期243-249,共7页
The intact stability and damage stability of a model of an anemometer tower with buoyancy tank foundation are computed by the finite element software MOSES in this paper. The natural period of the anemometer tower is ... The intact stability and damage stability of a model of an anemometer tower with buoyancy tank foundation are computed by the finite element software MOSES in this paper. The natural period of the anemometer tower is discussed through frequency domain analysis. The influence of a single factor, such as towing point position, wave height, wave direction and wave period, on towing stability is discussed through time domain analysis. At the same time, the towing stability under the condition of various combinations of many factors is analyzed based on the measured data of the target area. Computer simulation results show that the intact stability is preferable and the damage stability is sufficient under the condition of plenty of subdivisions. Within the scope of the buoyancy tank foundation,the higher the towing point position is, the better the stability is. Wave height has a great impact on the motion amplitude of buoyancy tank foundation, but the effect on the acceleration is not obvious; wave period has a great impact on the acceleration, while the effect on the motion amplitude is not obvious; following-waves towing is more conducive to safety than atry. 展开更多
关键词 anemometer tower floating foundation intact stability towing stability towing security
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