同步发电机的冷却方式分哪几种?各有什么优缺点?--qsf999的安全生产小屋

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同步发电机的冷却方式分哪几种?各有什么优缺点? | 2012-2-13 14:43:00

同步发电机的冷却方式分哪几种?各有什么优缺点?

同步发电机的冷却分为外冷和内冷两种:
1、外冷:包括空冷和氢冷空冷:冷却介质为空气,即用空气把发电机内因损耗而产生的热量带走,这种方式结构简单,但冷却效率不高。最大装机容量可达100MW左右; 氢冷:冷却介质为氢气,即用氢气把热量带走。与空气相比,冷却能力高。通风损耗较小,但结构复杂,需配置储氢设备。最大装机容量可达200MW左右;
2、内冷:包括定子水内冷,转子氢内冷等内冷(直接冷却方式):冷却介质为水、油、氢气,即将氢、水或油通过导线内部,直接把热量带走,与前述两种表面冷却方式相比,冷却能力高,可以缩小发电机体积,节省材料,便于制造大容量发电机,但发电机结构复杂,铜损较大,铁损和机械损耗较小,总损耗相差不多。

By:qsf999 | 阅读全文 | 回复(14) | 引用通告 | 编辑

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Re:在漫画中识别身边的违章 | 2017-3-3 23:36:00

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Re:在漫画中识别身边的违章 | 2016-10-22 11:42:47

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Re:在漫画中识别身边的违章 | 2016-10-22 2:37:35

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Re:在漫画中识别身边的违章 | 2016-10-17 1:18:27

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Re:在漫画中识别身边的违章 | 2016-10-17 0:07:02

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Re:在漫画中识别身边的违章 | 2016-10-16 2:00:58

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By:ejoqu(游客) | 个人主页 | 引用 | 返回 | 删除 | 回复

原创 | 2016-9-30 11:15:26

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原创 | 2016-9-28 16:38:48

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原创 | 2016-9-6 17:03:35

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