API617第8版离心部分的解读PPT课件下载推荐.pptx

1、NonintegrallyGeared Centrifugal and Axial Compressors相当于更为严谨了。,新版第1部分附录内容有磁力轴承、横向、扭转分析报告、防喘振系统指南、典型投标表模板、满载/全压力/全速试验内容；无干气密封等内容，不同点较多,主要术语概念新旧版本对比,5,术语中第8版总共66个，第7版总共有54个；Table 1Driver Trip Speeds表1驱动机跳闸转速,最常见项目的内容及对比,6,最常见项目的内容及对比,驱动机功率的选取,7,汽轮机5.1.4 Steam turbine drivers shall conform to API 612.S

2、team turbine drivers shall be sized to deliver continuously not less than 110%of the maximum power required by the machine train,when operating at any of the specified operating conditions,and specified normal steam conditions.汽轮机应符合API 612，汽轮机的输出功率规格按能连续输出规定运行条件下所 要求的最大功率的110%来确定，最大功率系在规定的正常蒸汽条件下以相

3、应转 速运行时的功率。NOTE The 110%applies to the design phase of the project.After testing,thismargin may not be available due to performance tolerances of the driven equipment.注：110%只适用于工程项目的的设计阶段。试验后，由于被驱动设备的性能公 差变化的要求。,最常见项目的内容及对比,8,电机5.1.5 Motor drives shall conform to internationally recognized standards

4、 such asAPI 541 or API 546,as applicable.（Motors that are below the power scope of API 541 or API 546 shall be in accordance with IEEE 841.）Electric motor drivers shall be rated with a 1.0 S.F.The motor power shall be at least 110%of the greatest power required（including gear and coupling losses）for

5、 any of the specified operating conditions.Consideration shall be given to the starting conditions of both the driver and driven equipment and the possibility that these conditions may be different from the normal operating conditions.电动机按适用情况应符合国际上认可的标准例如API 541 或 API 546（低于API541 或 API 546 的功率范围 的

6、电动机应按IEEE 841 执行）。电动机的额定功率应有1.0 的使用系数，电动机的额定功率至少应是任 何规定的运行条件下所要求的最大功率（包括齿轮和联轴器的是功率损失）的110%,应该考虑驱动机和 被驱动的启动条设备件，而起动条件可能与正常运行条件不同。NOTE 1 The 110%applies to the design phase of a project.After testing,this margin might not be availabledue to performance tolerances of the driven equipment.注1：试验后，由于被驱动设备

7、的性能公差变化,该边缘值可能不 可用。结论：要求和第7版相同。,最常见项目的内容及对比,曲线,9,Performance curves shall be submitted for each process section of each casing as wellas an overall curve for the train.These curves shall encompass the map of operations,with any limitations indicated thereon.All curves shall be marked“PREDICTED.”应提供各

8、缸每段（在两工艺管口之间）的性能曲线及多缸串联机组的性能曲线，其中包括运行曲线图，曲线图中应标明运行界限。所有曲线都应注有“预计”（PREDICTED）字样。NOTE A process section is one or more impellers separated by an inlet or extraction connection to process or intercoolers.注：工艺段由一个或多个被进口或拔出连接件与工艺或中间冷却器分开的叶轮组 成。,最常见项目的内容及对比,10,7.2.4.1 Curves for variable-speed compressors

9、 shall include the following:dischargepressure;power;polytropic head;and polytropic efficiency versus inlet capacity（from predicted surge point to overload）at minimum operating speed and 80%,90%,100%,and 105%speed,indicating the effect of specified inlet pressures,temperatures,and molecular weights.

10、Any specified operating points shall be noted within the envelope of the performance curve predicted.可变速压缩机的性能曲线应包括下列内容：最低运行转速、80%、90%、100%、105%额定转速时的出口压力、轴功率、多变能量头及多变效率与进口流量（从 预估的喘振点至额定流量）的关系曲线；还应表明规定的进口压力、温度及分 子量对性能曲线的影响。在预计的性能曲线范围内应注明所有规定的运行点。有所不同，但可以按第7版相同执行。,最常见项目的内容及对比,曲线,11,Performance curves

11、 shall be submitted for each process section of each casing as wellas an overall curve for the train.These curves shall encompass the map of operations,with any limitations indicated thereon.All curves shall be marked“PREDICTED.”应提供各缸每段（在两工艺管口之间）的性能曲线及多缸串联机组的性能曲线，其中包括运行曲线图，曲线图中应标明运行界限。,最常见项目的内容及对比,机

12、壳型式的要求（筒式）,12,4.6.1.3 Unless otherwise specified,casings shall be radially split when the partial pressureof hydrogen（at MAWP）exceeds 1380 kPa gauge（200 psi gauge）.The partial pressure of hydrogen shall be calculated by multiplying the highest specified mole（volume）percent of hydrogen by the MAWP.除非

13、另有规定，氢气分压力（在最大允许工作压力下）在1380kPa表压（200psi表压）时，机壳应垂直剖分。氢气分压力应该用最大允许工作压力乘以给出的氢气最高 摩尔（容积）百分含量来计算。,最常见项目的内容及对比,性能试验变速调节6.3.3.1.3 For variable speed machines,head and capacity shall have zero negative tolerance at the certified point,and the power at this point shall not exceed 104%of the supplier predicte

14、d shaft power value.This tolerance shall be inclusive of all test tolerances.Surge shall comply with provisions of 4.4.1.1.对于变转速调节压缩机，保证点上的压头和容量应没有负公差，而且该点的功率不 得超过卖方预测轴功率值的104%。该公差应包括所有的试验公差。喘振应符合4.4.1.1.的规定。第7版为：at the normal operatingpoint（or other point as specified）；正常工况点（或规定的其他点）结论：第8版更明确了为保证点。实际上第7版也表达的这个意思。,13,最常见项目的内容及对比,14,定转速6.3.3.1.5 For constant-speed compressors,the capacity shall be as specified in 6.3.3.1.2.The head shall be within the range of 100%to 105%of the normal head.The horsepower,based on measured head at certified capacity,shall not