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反渗透海水淡化中差动式能量回收装置的研究 总被引:4,自引:0,他引:4
研究了一种应用于中小型反渗透海水淡化装置的新型差动式能量回收装置.结果表明,使用本能量回收装置的日产10m3反渗透海水淡化装置的单位淡水能耗只有3.6kWh/m^3,不考虑高压泵及电机自身损耗的影响时,单位淡水能耗为2.3~2.7kWh/m^3,装置能耗显著降低,能量回收效率达到97%.此能量回收装置不需要其它附加增压设备,并且能有效改进由于阀门开闭导致系统压力波动而造成的淡水产量不稳定的问题,保护了反渗透膜、高压泵等系统内的重要设备. 相似文献
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为减少卷烟机主设备YJ212接装机因搓板堵塞而造成的停机时间,提高搓板清洁速度,提高卷烟质量,设计了一套搓板自动清洁装置。通过压缩空气与铜丝刷清洁配合,彻底清洁鼓轮和搓板的附着物和胶垢。采用设备原主控制器S7-400 PLC编写控制功能块,实现搓板自动清洁装置的3种工作模式。试验结果表明:搓板堵塞造成设备停机后,搓板自动清洁装置一次清洁成功率达到98%以上,烟支泡皱率由8%降低到3%,搓板清洁时间由原来的每次45s降低到10s。 相似文献
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微电子工业生产废水处理及回收利用 总被引:3,自引:0,他引:3
阐述了微电子工业芯片制造而产生的含氟废水、硅片研磨废水以及纯水处理混床再生所产生的高浓度酸碱废水的处理方法,特别对含氟废水的处理进行了大胆的浓度,取得了明显的成效。对处理后的合格废水回收用作工艺设备及动力设备的冷却水,产生了良好的经济效益和社会效益。 相似文献
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传像束排丝设备是制作玻璃光纤传像束的关键设备,通过对原有排丝设备的简述,了解到它的局限性。根据市场的需求提出了全新排丝设备的设计思想,不仅能够制作常规传像束还能够制作大截面的光纤传像束。经过设计安装调试,在实际的应用中效果良好,扩大了产品的制做种类,提高了产品的质量。 相似文献
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为提高电煅无烟煤质量的均匀性,分析了电煅烧炉偏流导致电煅无烟煤质量不均匀的3种原因——排料部位场块结焦、底部电极倒塌、煅前加料工艺设计不合理,并提出了相应的解决方法。结果表明,煅前加料工艺设备的改造,对电煅无烟煤质量的稳定提高起到了关键作用。 相似文献
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Synthesis and properties of epoxy resin modified with epoxy-terminated liquid polybutadiene 总被引:1,自引:0,他引:1
Epoxy resin networks have been modified with block copolymer of polybutadiene and bisphenol A diglycidyl ether (DGEBA)-based epoxy resin. Block copolymers prepared from isocyanate-terminated polybutadiene (NCOPBER) resulted in cured transparent epoxy networks with no discernible phase-separated morphology, as indicated by scanning electron microscopy. Epoxy resin modified with block copolymer derived from carboxyl-terminated polybutadiene (CPBER) presented an opaque aspect with dispersed rubber particle diameters in the range of 0.5-3μm. This value is substantially smaller than that found in epoxy matrix modified with hydroxyl-terminated polybutadiene. The different morphological characteristics observed in these modified systems were attributed to the different times to achieve the gelation (gel time) and also to the different structures of the block copolymers. The visual homogeneity of the NCOPBER block copolymer-modified network cannot be attributed to the presence of dissolved rubber, since the glass transition temperature of the epoxy matrix (determined from dynamic mechanical analysis) has not been substantially influenced by the presence of this block copolymer. The epoxy resin modified with the different block copolymers presented an improved impact resistance. The best mechanical performance in terms of flexural and tensile properties was achieved with the block copolymer derived from carboxyl-terminated polybutadiene, whereas a more flexible material has been obtained with NCOPBER block copolymer-modified network. 相似文献
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通过实例,介绍了涂装生产线在集装箱涂装中的应用。对集装箱涂装工艺、设备进行优化、改进,在节能减排、降低劳动强度等方面取得成效。 相似文献
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计算机控制技术在瓶罐玻璃机械中的应用杨自皆,姜丰英(齐鲁莫尔玻璃机械有限公司255331)TheApplicationofComputerControlinGlassContainerMachinery¥YangZijie;JiangFengying... 相似文献
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Nanostructure development in polystyrene‐b‐polybutadiene‐b‐poly(methyl methacrylate) (SBM) thin films by atomic force microscopy: Effect of copolymer composition and solvent 下载免费PDF全文
Loli Martin Lourdes Irusta Alba González Agnieszka Tercjak Galder Kortaberria 《Polymer Engineering and Science》2018,58(3):422-429
Surface morphology development for SBM triblock copolymer thin films has been studied by atomic force microscopy. The effect of copolymer composition and solvent on the final morphology has been investigated. Obtained results indicated that depending on the block ratio (symmetric or asymmetric with minority middle block) and solvent, lamellar, hexagonal, cylindrical, or spheres in lamellae (ls)‐type morphologies can be achieved at film surfaces. The influence of the interaction parameters among blocks and solvents and cohesive energy values of block pairs on the final morphology has been proved. POLYM. ENG. SCI., 58:422–429, 2018. © 2017 Society of Plastics Engineers 相似文献
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The equipment for automatic measurement of liquid electrodes zero charge potential values based on the use of the immersion method, has been presented. The advantages of this method in comparison with the streaming method have been described. The paper presents block diagrams of the three versions of the equipment and the analysis of its functioning, and describes the construction of the measuring cell. The measurements of pzc of mercury in KF solution have been carried out in mixtures of water-isopropanol and the component values of the potential drop at the investigated phase boundary have been determined by extrapolation. 相似文献