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为什么电冰箱能制冷?

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为什么电冰箱能制冷?

电冰箱是利用氟利昂ye化气在蒸发化成气ti时,要xi收热量的原理而设计制造的。以双门电冰箱为例:冰箱底bu安装着压缩机,它的任务是给进入压缩机的气态氟利昂增加压力。加压后的气态氟利昂温度很高,让它进入冷凝qi降温成为ye态氟利昂。ye态氟利昂又通过干燥过滤和螺旋mao细guan,去除混入ye态氟利昂中的污wu、水分并降低压力,最后进入冰箱上bu冷冻室里的蒸发qi,迅速蒸发为气态氟利昂,大量xi收冰箱冷冻室内储藏的食品的热量。经过这个过程以后,变成气ti的氟利昂再次被压缩机chouxi进去,进入下一个制冷循环。经过一个又一个循环,电冰箱内的温度很快下降,直到达到规定要求的冷冻温度,压缩机自动停止运转,等待重新启动。

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