制冷剂--qsf999的安全生产小屋

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制冷剂 | 2011-4-30 10:28:00

制冷剂

制冷系统中循环的工作介质称为制冷剂，当制冷剂通过蒸发器时，从被冷却物体中吸取热量，再通过冷凝器把热量经冷却水带出排入大气中（环境）。

采用氨（R717）作为制冷剂，在有水份时，氨对铜和合金（除铸造锡青铜外）有腐蚀作用，与空气混合后有爆炸危险（爆炸浓度为16~25%体积），在使用操作过程中应特别注意。关于其它性质请参阅有关资料。

采用氟利昂(R22)作为制冷剂时，由于应注意系统的回油，保证系统干燥，不泄漏。本说明所述的氟利昂工质专指R22工质，以下不再说明。

制冷剂在饱和状态时，压力和温度之间有对应关系，即压力一定，温度也一定，如果知道冷凝压力（排气压力）、蒸发压力（吸气压力），就可以从氨或氟利昂的热力性质表中查出对应的冷凝温度和蒸发温度。

By:qsf999 | 阅读全文 | 回复(12) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2016-10-23 14:59:43

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Re:在漫画中识别身边的违章 | 2016-10-22 18:11:53

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Re:在漫画中识别身边的违章 | 2016-10-22 17:55:13

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Re:在漫画中识别身边的违章 | 2016-10-19 15:27:04

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Re:在漫画中识别身边的违章 | 2016-10-17 1:32:07

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Re:在漫画中识别身边的违章 | 2016-10-12 21:14:50

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Re:在漫画中识别身边的违章 | 2016-10-11 3:34:38

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原创 | 2016-9-30 16:10:53

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原创 | 2016-9-28 21:29:30

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原创 | 2016-9-6 21:52:51

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