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调节阀课件-球阀蝶阀结构内件认识(连载二)

  • 2026-04-19 21:35:34
调节阀课件-球阀蝶阀结构内件认识(连载二)
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新手必备｜小讲堂｜调节阀运用｜调节阀结构

调节阀、球阀、蝶阀结构 课件

调节阀课件-调节阀结构内件认识（连载一）

浮动球阀的结构及特点：

1、流量特性近似快开

2、结构简单，维护方便，因密封可靠，泄漏量较小。

3、所需扭力矩较小，且与阀前后压差关系不大(仅摩擦力)；

4、流通能力相对较大；

5、普遍为双座密封，容易实现密封；

6、旋转动作可产生剪切效果，适用于粘稠、颗粒、有丝带类介质工况。

7、价格贵。

8、球体在压差的作用下，会往阀门的下游微量位移

9、球阀的密封性能，主要取决于它的下游阀座

固定球球阀阀座密封力的产生

蝶阀的结构特点：

1、体积小、重量轻，结构简单，可做成较大规格产品；

2、流通能力大；

3、动作时对阀芯、阀座的磨损较严重；

4、除三偏心蝶阀外，不易实现较高等级的泄漏量；

5、动作时的剪切作用，可用于粘稠、颗粒、有丝带类介质工况。

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  140. /yingpanguazai/ssd/ssd1/www/a.sjds.net/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000890s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001601s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000833s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000696s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001600s ]
  6. SELECT * FROM `set` [ RunTime:0.000617s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001506s ]
  8. SELECT * FROM `article` WHERE `id` = 482895 LIMIT 1 [ RunTime:0.001215s ]
  9. UPDATE `article` SET `lasttime` = 1777130417 WHERE `id` = 482895 [ RunTime:0.014169s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000696s ]
  11. SELECT * FROM `article` WHERE `id` < 482895 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001344s ]
  12. SELECT * FROM `article` WHERE `id` > 482895 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.002014s ]
  13. SELECT * FROM `article` WHERE `id` < 482895 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001864s ]
  14. SELECT * FROM `article` WHERE `id` < 482895 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.012138s ]
  15. SELECT * FROM `article` WHERE `id` < 482895 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.014914s ]
0.224584s