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阀门检修及维护PPT资料(下):阀门的拆装与检修

  • 2026-05-02 09:26:11
阀门检修及维护PPT资料(下):阀门的拆装与检修
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新手必备｜小讲堂｜阀门技术｜阀门结构

阀门检修及维护PPT（下）

培训目的：

阀门是流体输送系统中的控制部件，具有截断、调节、导流、防止逆流、稳压、分流或溢流泄压等功能。

发电厂各种工作介质管道中的阀门数量很多，种类很多，阀门的好坏直接影响到发电厂的安全、经济运行。

通过对几种基本类型阀门的检修培训，掌握阀门的基本结构，密封面研磨方法、填料、垫床的更换与制作的方法、要求以及阀门常规检修项目的工艺要求。

附：阀门检修及维护PPT(上)：阀门的型号与分类

第二节：阀门的拆装与检修

---END---

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  1. CONNECT:[ UseTime:0.000533s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000884s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000322s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000292s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000600s ]
  6. SELECT * FROM `set` [ RunTime:0.000209s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000755s ]
  8. SELECT * FROM `article` WHERE `id` = 498384 LIMIT 1 [ RunTime:0.000478s ]
  9. UPDATE `article` SET `lasttime` = 1778082959 WHERE `id` = 498384 [ RunTime:0.004245s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000299s ]
  11. SELECT * FROM `article` WHERE `id` < 498384 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000390s ]
  12. SELECT * FROM `article` WHERE `id` > 498384 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003980s ]
  13. SELECT * FROM `article` WHERE `id` < 498384 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000752s ]
  14. SELECT * FROM `article` WHERE `id` < 498384 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000722s ]
  15. SELECT * FROM `article` WHERE `id` < 498384 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000823s ]
0.081459s