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ID:13874120
大小:606.00 KB
页数:18页
时间:2018-07-24
《水泵及水泵站复习材料》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第一章水泵定义:是输送和提升液体的机器,他把原动机的机械能转化为输送液体的能量分类:叶片式,容积式,其他类。发展趋势:大型化大容量化;高扬程化高速化;系列化通用化标准化。第二章水泵基本构造:固定部分,转动部分,轴封部分水泵基本参数:1、流量—水泵在单位时间内所输送的液体数量2、扬程—水泵对单位重量液体所作之功3、轴功率—泵轴得自原动机所传递来的功率称为轴功率,以N表示4、效率—水泵的有效功率与轴功率之比,以η表示5、转速—水泵叶轮的转动速度,通常以每分钟转动的次数来表示,以字母n表示。6、允许吸上真空高度Hs—指水泵在
2、标准状况下(即水温为20℃、表面压力为一个标推大气压)运转时.水泵所允许的最大的吸上真空高度。单位为mH207、气蚀余量(Hsv)——指水泵进口处,单位重量液体所具有超过饱和蒸气压力的富裕能量。水泵厂一般常用汽蚀余量来反映轴流泵、锅炉给水泵等的吸水性能。单位为mH2Othereportontheworkofvariousdepartments,superviseandinspectthemanagementandprojectimplementationandresultsofimplementingfinancial
3、plansofthecompany,effectivecorrectivemeasurestoensuretheachievementofbusinessobjectivesfortheyear;1.4theobjectivefixed:accordingtomarkettrendsandemergingissueswithinthecompany,calledspecialtopicsinbusinessmanagementstrategysessionon...2.6compensationandbenefitsm
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5、continuousupgradingoftheworkingmethodsandquality;2.8employeescareerplanning:accordingtotherealitiesandthedevelopmentofthecompanyanditsneeds,identificationofoccupationalneeds,combinedwiththeactualdesignforitsdevelopmentgoals,accordingtoimplementcommunicationwiths
6、tafftomodifyemployeedevelopmentgoals;2.9archives:archivesofthestatisticsofreasonableandeffectivemanagementtoensurehumanthereportontheworkofvariousdepartments,superviseandinspectthemanagementandprojectimplementationandresultsofimplementingfinancialplansofthecompa
7、ny,effectivecorrectivemeasurestoensuretheachievementofbusinessobjectivesfortheyear;1.4theobjectivefixed:accordingtomarkettrendsandemergingissueswithinthecompany,calledspecialtopicsinbusinessmanagementstrategysessionon...2.6compensationandbenefitsmanagement:polic
8、yformulation,improvethepayandbenefitssystemanddeveloppayrollandstaffbenefitsinatimelymanner;2.7performancemeasurementthroughrationaldesignmethodsofperformanceevaluati
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