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培训PPT|工业过程控制阀和智能电气阀门定位器之概述(李宝华编写)

  • 2026-03-19 10:46:40
培训PPT|工业过程控制阀和智能电气阀门定位器之概述(李宝华编写)
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新手必备工具书｜系列小讲堂｜调节阀运用

《工业过程控制阀和智能电气阀门定位器》上篇

作者：李保华｜2015.9月

一、概述

定义、分类、基本组成、行业划分、作用、发展。

二、控制阀结构

执行机构、附件、阀类型、阀体、阀盖、填料密封、阀内件、流量特性

三、控制阀原理

理论基础、流量计算、闪蒸和空化、噪声防治

四、控制阀的安全要求

安全概念、安全要求、试验、符合性评估和SIL认证

五、控制阀的技术要求

技术要求的标准、性能的技术要求、附加技术要求

六、控制阀的选择

应用要求、相关因素、计算选择、材料选择

七、控制阀的测试和安装

八、控制阀的维护

一、概述（P3-28）

未完待续

......

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  1. CONNECT:[ UseTime:0.000930s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000659s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000302s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000253s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000524s ]
  6. SELECT * FROM `set` [ RunTime:0.000216s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000512s ]
  8. SELECT * FROM `article` WHERE `id` = 469472 LIMIT 1 [ RunTime:0.000409s ]
  9. UPDATE `article` SET `lasttime` = 1775305369 WHERE `id` = 469472 [ RunTime:0.002683s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000236s ]
  11. SELECT * FROM `article` WHERE `id` < 469472 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000429s ]
  12. SELECT * FROM `article` WHERE `id` > 469472 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000393s ]
  13. SELECT * FROM `article` WHERE `id` < 469472 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000616s ]
  14. SELECT * FROM `article` WHERE `id` < 469472 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000738s ]
  15. SELECT * FROM `article` WHERE `id` < 469472 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001512s ]
0.080471s