Operating principle of rotary dehumidifier

　　After the honeycomb runner is formed by the molding mechanism, the dehumidification runner a is made of ceramic fiber paper with a temperature resistance of more than 500 ℃. Then the silica gel is coated between the ceramic fibers, so the dehumidification runner will not have problems such as combustion and deliquescence. Because its dehumidification function is to use physical action rather than chemical action, it will not produce any harmful chemicals.

　　Then in the wheel regeneration area, the dehumidification principle of the b wheel dehumidifier is to physically adsorb the water in the air on the porous synthetic silica gel by using the silica gel coated on the wheel. The water vapor adsorbed on the silica gel hole is heated and vaporized to the inlet of the AC heat exchanger to form high temperature and humidity air, and then condensed water is discharged due to the difference of dew point when passing through the heat exchanger that has been cooled by indoor cold and wet air.

　　Some are easy to rust and are also metal products. Some are hard to rust. For example, iron products placed in wet places are easy to rust, but iron products placed in dry places are not easy to rust; Iron products exposed to the air are easy to rust. Why does this happen? What factors are involved in iron rust?

　　Cut off one of the rusty conditions. If the iron is painted, ironware in wet places is easier to rust than ironware in dry places because ironware in wet places is easier to contact with water than ironware in dry places. If you want to reduce the rust of iron. It cuts off the contact between iron and air. Put some metal products in a dry place to cut off the contact between iron and water, thus preventing iron products from rusting.

　　The following experiment was designed: a small soft plastic bottle was filled with oxygen according to my hypothesis. In addition, an appropriate amount of distilled water shall be injected to immerse part of a polished iron nail in water, and part of it shall be exposed to the water. Cover the mouth of the cup. If the bottle shrinks when the iron is rusted, it is related to oxygen. If the junction between the water and oxygen rust fastest, it is the result of the joint action of water and oxygen.

　　Immersed in water isolated from the atmosphere is not easy to rust, and iron is not easy to rust in dry air. It is easy to rust in a humid environment. Why?

　　The chemical properties are more active, because the valence electron rate of iron is more plastic. So iron reacts more easily with oxygen. Iron in nature is generally oxidized. Ironmaking actually reduces iron oxide to iron. Iron can react violently with pure oxygen, and iron can also slowly oxidize with oxygen in humid air -- iron rust.

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