天气预报15天查询> 其他> 为什么冷凝器冷却要下进上出

为什么冷凝器冷却要下进上出

更新时间: 2020-10-09 00:00:00     

水遇热膨胀,浮力变大,上进下出容易出现均温,效果不佳。从热到冷使冷却效果最佳,刚进入冷却管的蒸汽很热,如果上进下出在以开始时水就被加热到下面流出的时已经有了一定的温度,所以并不能很好的冷凝,而下进上出九能保证此过程一直是温度逐级降低的冷却。保护仪器,防止中间管子因受热不均而破裂。

关键词: 为什么 冷凝 冷却

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-2755740/ | 耗时:0.3579 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=2755740 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2755740 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2755740 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(136889,1117930,1087912,1127879,1125271,1076315,1130925,1129433,1130798,1087713,165149,227560,1899611,1085514,1892850,1324149,1078262,1972426,1132545,1132681,2096586,1132227,1124316,1087133,1110708,1083618,1073568,1119744,1048108,2023306) ORDER BY field (ArticleID,136889,1117930,1087912,1127879,1125271,1076315,1130925,1129433,1130798,1087713,165149,227560,1899611,1085514,1892850,1324149,1078262,1972426,1132545,1132681,2096586,1132227,1124316,1087133,1110708,1083618,1073568,1119744,1048108,2023306)