Multi-stage and multi-orifice throttling analysis for thermal power generating sets

来源 :Journal of Harbin Institute of Technology | 被引量 : 0次 | 上传用户:buhuigreen
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Multi stage and multi orifice throttling analysis for bypass valves in thermal power generating sets is important for normal operation of power generating equipment. It is improper to exclude the factor of flow resistance from the expansion coefficient for the flow formula used for analysing the multi stage and multi orifice flow of compressible fluid, which means expansion of gas has nothing to do with resistance. The authors put forward an expanded energy equation and related formula to overcome the drawback, and use them for multi stage and multi orifice throttling analysis of compressible fluid for thermal power generating sets. Multi stage and multi orifice throttling analysis for bypass for in power power generating sets is important for normal operation of power generating equipment. It is improper to exclude the factor of flow resistance from the expansion coefficient for the flow formula used for analysing the multi stage and multi orifice flow of compressible fluid, which means expansion of gas has nothing to do with resistance. The authors put forward an expanded energy equation and related formula to overcome the drawback, and use them for multi stage and multi orifice throttling analysis of compressible fluid for thermal power generating sets.
其他文献
目的:探讨三七总甙抗肝纤维化作用机制。方法:按常规方法分离正常大鼠肝星状细胞,用三七总甙药物温育液作用于传一代培养的肝星状细胞,~3H-TdR掺入观察细胞增殖,ELISA法测定
黄昏时分,卖烧饼的夫妻数着一天的收入,比昨天又增加了两块钱!夫妻相视一笑,天地格外美好;同在这个黄昏,另一腰缠万贯的富翁却因为所持股票面值下跌了30个百分点而饮弹自杀。其实,仅他
综述了近10年来苦瓜属植物的化学成分及药理作用研究概况,并对本属植物的应用开发前景作了评述。 The review of the chemical constituents and pharmacological effects o
用D-氨基半乳糖(D-GalN)制备大鼠急性肝损伤模型,检测血清谷丙转氨酶(ALT)、谷草转氨酶(AST)和肝匀浆超氧化物歧化酶(SOD)、丙二醛(MDA)含量,观察肝组织病理变化,以探讨中药
目的 :对不同产地的胡芦巴进行质量评价。方法 :用气相色谱法测定胡芦巴中薯蓣皂甙元的含量。结果 :回归方程为Y =4 75 4 .1 8+ 6 73.33X ,r =0 .997。平均加样回收率为 99.5
英语是所有语言中使用人数最多的国际通用语言。熟悉英语,听懂英语,不仅有利于提高初中生的学习自信,还有利于丰富初中生的个人精神生活。然而,纵观现阶段的初中英语教学,普
为提高粉末冶金中小企业开发中、高强度结构零件的技术能力以及在普通液压机和机械压机上配备自动模架的设计知识 ,江苏省机械工程学会粉末冶金专业委员会于2 0 0 1年 1 2月
目的 研究黄芪总提物(Totalextract of astragalus, TEA) 延缓衰老的作用。方法 采用小鼠D半乳糖(Dgalastose, Dgal) 人工衰老模型和自然衰老模型(17 月龄) ,从行为活动、氧自由基代谢与损伤和免疫学指标三方面进行研究。
用色质联用技术分离鉴定了毛果蝎子草的十三种组分,占出峰总面积的84.5%,主要成分为亚油酸(52.01%)和延胡索酸二甲酯(10.05%)。样品中游离氨基酸和KNO_3含量分别为42.30mg/100g
测定安国县10个村引种黄芪药材中黄芪甲苷含量,平均值为0.199%,比传统道地黄芪高2倍,比《中国药典》标准(不得少于0.04%)高近4倍,但外观质量难以相比,10个村黄芪药材中砷、汞、铅、镉、镍、钴等 6种元