In the midsummer of July, many people will hide in the air-conditioned indoors all day long. However, due to the condensed water generated during the use of the air conditioner, the indoors are more dry, and the closed indoors are likely to cause the lack of air negative ions, etc., which will cause the so-called "air conditioning disease", so the air conditioner is always small for the human body. Friendly, especially families with old people and children at home.
At this time, the common electric fan became a good solution. Many merchants have also begun to sell air-conditioning fans. Can these air conditioners, which are known as air conditioners, replace air conditioners as our summer companions?
What is the principle of air conditioning fans?
Air conditioning fans are also known as cooling fans, air coolers, and so on. The principle is very simple, that is, the temperature of the water in the water storage tank is lowered by the built-in ice cube (which needs to be made in the refrigerator), and then the water is continuously delivered to the water absorption evaporation net in front of the fan blade by the high-pressure water pump, due to evaporation. When the heat is absorbed, the temperature of the blown air will be lower than the temperature of the air in the environment, thereby achieving the effect of cooling.
The problem is to replace the air conditioner is a delusion
Understand the principle of air-conditioning fans, we can easily find that the biggest difference compared with the traditional electric fan is that it blows a cold wind, which seems to play a role in cooling. In fact, in practice, our body mainly achieves the effect of heat absorption and cooling by evaporating the sweat of the body surface, while the wind can accelerate the evaporation, so the meaning of the electric fan is here. However, this cold wind does not actually exchange too much heat with the human body. The actual meaning is not great, and more is still a gimmick.
In addition, the ice cubes used by the air-conditioning fans to cool down need to be made in the refrigerator before use. It usually takes 2 hours, and it needs to be changed from time to time. It is very cumbersome; at the same time, it will evaporate water continuously in the use of the project. It will deepen the air humidity, but it will become even more sultry in the otherwise humid south; and the addition of the pump will make the head and noise bigger than the traditional electric fan.
Therefore, the air conditioner fan does not replace the air conditioner, and even the traditional electric fan can not match, it is better to buy a better fan.
Where does the wind without a leaf fan come from?
Speaking of a good fan, maybe everyone can't react for a while, maybe the first reaction will feel that the fan is relatively low, but I really understand that the products on the tall are actually quite a lot. Among them, the most attention is the bladeless fan of the European and American systems, and the improved fan of the 7-blade DC motor of Japan and South Korea.
The first thing I have to mention is that Dyson's leafless fan has always given people a very cool black technology feeling. Of course, the price is also very high.
However, there are no fans. Where does the wind without a leaf fan come from? It has a built-in high-efficiency DC motor that produces a powerful airflow through the mixing airflow impeller and is directed upward through the aerodynamic diffuser. Finally, a multiplier technique is used to jet a long distance of gentle airflow from the loop amplifier at the top of the fuselage.
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