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【探究背景】现在许多家庭废旧空调冰箱中氟里昂任意排放,这种现象不仅浪费资源,而且排放的氟利昂会破坏对地球生命有保护作用的臭氧层,加剧温室效应。如何解决制冷机中残留氟里昂的回收、利用的问题?我在老师的指导下就此问题进行了探究。【探究过程】1.残氟回收器电路图(1)首次排空气体。打开液体截止阀,关闭气体截止阀,接通系统电源,让系统排空。观察低压表,当低压表读数小于或等于零时,说明系统已自动排空。(2)将气体截止阀连接氮气瓶,打开气体截止
【Background】 Nowadays, Freon emissions from many domestic air-conditioned refrigerators are arbitrarily discharged. This phenomenon not only results in the waste of resources, but also frees up the ozone layer that has a protective effect on the life of the earth and exacerbates the greenhouse effect. How to solve the refrigerator Freon residual Freon recycling, the use of the problem? I am under the guidance of the teacher on this issue were explored. [Inquiry process] 1. Residual fluorine recovery circuit (1) for the first time evacuating the gas. Open the liquid shut-off valve, turn off the gas shut-off valve, turn on the system power and let the system empty. Observe the low pressure gauge, when the low pressure gauge reading is less than or equal to zero, the system has been automatically emptied. (2) The gas valve connected to the nitrogen bottle, open the gas cutoff