电站阀门及其选用-畅读网

　　　　

电站阀门及其选用

作者：戴富林

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科学技术 >> 工业技术

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内容简介:

本书试图根据电厂用户工艺系统对阀门的要求，结合管道内的介质、压力、温度和流量等参数，给出电站阀门的选用原则或通过选型计算来正确选用阀门。为此，本书首先对电站系统做了介绍，并结合一些成功的案例，对阀门采取的特殊设计方法等做了进一步的阐述，旨在给工程设计人员及阀门用户提供一些有价值的建议。本书分为6章，分别为燃煤电站的主要系统及其阀门的特点、燃气轮机-蒸汽联合循环电站的主要系统及特殊阀门、水力发电站及其主阀、核电站及其阀门、控制阀的选用、疏水阀的选用。

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SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 5 LIMIT 1 [ RunTime:0.002136s ]
SELECT `id`,`name` FROM `ls_goods_category` WHERE `id` = 45 LIMIT 1 [ RunTime:0.002521s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 11 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.003235s ]
SELECT `a`.*,`ap`.`width`,`ap`.`height` FROM `ls_ad` `a` INNER JOIN `ls_ad_position` `ap` ON `a`.`pid`=`ap`.`id` WHERE `pid` = 14 AND `ap`.`client` = '2' AND `a`.`status` = '1' AND `a`.`del` = '0' AND `ap`.`status` = '1' AND `ap`.`del` = '0' ORDER BY `sort` DESC,`id` DESC [ RunTime:0.002552s ]
SELECT * FROM `ls_goods` WHERE `del` = 0 AND `status` = 1 AND `create_time` <= 1758206593 ORDER BY `create_time` DESC LIMIT 5 [ RunTime:0.598093s ]

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