共查询到20条相似文献,搜索用时 78 毫秒
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据《Diesel&Gasturbineworldwide》2 0 0 1年 10月号报道 ,美国密苏里州特罗伊市的WatlowProcessSystems公司最近推出整体的燃料气体精整系统 ,可以为燃气轮机提供很高质量的燃料气体。该系统使用过滤和过热技术来充分精整用于燃气轮机的燃料气体。通过把燃料精整系统的各个部分 (过滤和加热部件 )结合进一个模块化和单一的橇装系统 ,电力生产者可在性能、安装速度、更可靠的动力源方面得到许多附加的效益 ,从而加快了他们投资的回收。用于简单循环装置时 ,该精整系统包括 :燃料气洗涤器 :该… 相似文献
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锅炉的锅筒内部汽水分离装置,由于安装时锅管内壁与扁钢没连续双面角焊缝形成间隙,造成蒸汽短路而影响蒸汽品质,本文作了计算。分析。 相似文献
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对某公司供货的2种规格的1Cr18Ni9扁钢进行了试验,对来料的化学成分、力学性能和金相组织进行了测定。确定厂家固溶后的过酸洗是导致省煤器撑架压制开裂的主要原因。 相似文献
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大容量的热水锅炉采用焊制鳍片管(屏),作为炉膛中的膜式水冷壁,其管子节距和扁钢的厚度选用应通过计算来获得。本文主要介绍计算公式和方法。 相似文献
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文了深入探讨.章在对枞树型轮槽精铣刀进行分析的基础上,结合实际生产经验,对其制造工艺流程、加工难点等问题进行并进一步对轮槽铣刀的关键加工技术进行了分析研究,制定出了合理有效的加工制造策略.为轮槽铣刀的加工制造提供了全面系统的技术参考. 相似文献
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Assessment of finishing processes by exhaustion principle for textile fabrics: An exergetic approach
This study reveals the exergetic assessment of exhaustion processes for textile fabrics using actual operational data. The objective of the current work is to address the effects of the exhaust method parameters on exergy destruction and consumption rates. Additionally, a case study for cotton and polyester finishing processes was performed. The process temperature and time, water inlet temperature and liquor ratio were found to be the main parameters that affect exergy destruction rates. The effects of carry-over on exergy destruction rates were also investigated. It was shown that, 23% and 50% of total exergy destruction rate were occurred by the bleaching and the washing steps for cotton finishing, respectively, while 32% of total was accounted for the dyeing step of polyester finishing. The exergy efficiency of the finishing processes was obtained to be between 4.6% and 34.8% depending on the process variables. High temperature processes had higher exergy efficiency values. 相似文献
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本文分析了某300MW机组建设期间,锅炉末级再热器由于设备保管不当造成氧腐蚀的原因。 相似文献
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Jaeboo Kim Junghyeung Lee Sang Moo Hwang 《International Journal of Heat and Mass Transfer》2009,52(7-8):1864-1874
In hot strip rolling, sound prediction of the temperature of the strip is vital for achieving the desired finishing mill draft temperature (FDT). In this paper, a precision on-line model for the prediction of temperature distributions along the thickness of the strip in the finishing mill is presented. The model consists of an analytic model for the prediction of temperature distributions in the inter-stand zone, and a semi-analytic model for the prediction of temperature distributions in the bite zone in which thermal boundary conditions as well as heat generation due to deformation are predicted by finite element-based, approximate models. The prediction accuracy of the proposed model is examined through comparison with predictions from a finite element process model. 相似文献
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气缸盖导管孔和气门座圈在加工中心上的加工方法 总被引:1,自引:0,他引:1
倪根林 《柴油机设计与制造》1999,(4):29-30
介绍了在加工中心上加工缸盖导管孔和气门应圈时的座圈跳动保证方法,及其所使用刀具的调整要点。 相似文献