石油化工用调节阀简介（Introduction of regulating valve for petrochemical industry）.docVIP

下载本文档

2
0
约1.98万字
约 27页
2017-08-24 发布于河南
举报
版权申诉

石油化工用调节阀简介（Introduction of regulating valve for petrochemical industry）.doc

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

石油化工用调节阀简介（Introduction of regulating valve for petrochemical industry）

石油化工用调节阀简介（Introduction of regulating valve for petrochemical industry） This paper contributed by gerichard. Doc document may at the WAP end of the browsing experience poor. Suggest you select TXT, or download the source file to the machine view. The valve profile for petrochemical industry (outline) Sinopec Engineering Incorporation (SEI) Wang Weihua in May 2008 Petrochemical Valve outline profile directory One The valve working principle...... 11.1 1.2 1.3 Bernoulli equation...... 1 medium flows through the valve pressure distribution...... 1 position valve...... Two Two Characteristics of valve spool...... 22.1 2.2 2.3 valve characteristics...... 2 range R...... 3 valve S...... Three Three Flow capacity of control valve...... 33.1 3.2 3.4 3.5 3.6 3.7 3.8 3.9 C value and Cv value...... 3 liquid viscosity (centistoke (20) Cv value calculation...... 3 water vapor or other steam Cv value calculation...... 3 valve body diameter Cv value and the relation table...... 4 valve Cv range...... 5 control valve stroke...... 5 valve stroke time...... 5 control valve body size...... Five 4. 5. 6. The actuator control valve selection...... 5 valve off pressure (shutoff P)...... 6 valve structure...... 66.1 6.2 6.3 divided by the body...... 6 according to the execution mechanism...... The 6 angle valve flow...... Six Seven The main auxiliary equipment control valve...... 67.1 valve positioner, selection principle...... Six One 7.2 7.3 7.4 7.5 7.6 7.7 7.8 8. 9. Handwheel...... 6 stroke switch...... 6 solenoid valve (normal excitation)...... The connection of 6 solenoid valve...... The connection of 7 cylinder shut-off valve and four solenoid valve...... 7 adjust the shut-off valve and electrical valve positioner and solenoid valve connection...... 7 of the important working conditions and the connection scheme of redundant electromagnetic valve...... Seven Valve seal stuffing (see API608 specification)...... 7 control valve noise (in accordance with IEC60534 - 8 standard)...... 79