Can you understand the working principle of the dust-free aseptic hand washing and drying machine?

Place your hands on both sides of the opening. 2. Put your hands into the device. 3. Lift your hands slowly. 4. Leave the device. 5. Repeat steps 1-4. The wind speed of ordinary hand dryers is only about 15 m/s, and the hand-drying time generally takes more than 25 seconds; while the wind speed of jet hand dryers reaches 90 m/s, the strong double-sided jet airflow quickly blows the water droplets on the hands, and the time is only 5 -7 seconds, improve work efficiency. Please refer to the following figure for the use of air-jet hand dryers: When purchasing a hand dryer, consumers should decide which hand dryer to buy according to their needs and environment. The PTC type hand dryer is different from the heating wire type hand dryer. Consumers can also choose an air-volume hand dryer with wind as the main heat as supplement, or a hot-air hand dryer with heat as the mainstay according to their needs. When choosing electromagnetic induction hand dryers, it should be noted that the hand dryers are easily affected by the environment and objects. When choosing an infrared induction hand dryer, it should be noted that the infrared induction hand dryer is also susceptible to light interference. Consumers should test the machine when buying and choose a hand dryer that is not susceptible to interference. When buying a hand dryer, you should also pay attention to which type of motor the hand dryer uses. There are many types of motors for hand dryers, including capacitor asynchronous motors, shaded pole motors, series motors, DC motors, and permanent magnet motors. Hand dryers driven by capacitor asynchronous motors, shaded pole motors, and DC motors have the advantage of low noise, while hand dryers driven by series motors and permanent magnet motors have the advantage of large air volume. The newer brushless DC motors are now Combining the above characteristics, low noise and large air volume, it has become a good choice for hand dryers. The main parameters of the hand dryer 1. Shell: The shell material not only determines the appearance of the hand dryer, but unqualified materials may become a fire hazard. The better hand dryer shell usually uses ABS flame-retardant plastic, metal spray paint, and engineering plastic. 2. Weight: It is mainly to consider whether the installation location and material have sufficient capacity to bear the weight of the hand dryer. For example, the weight of the cement brick wall generally does not need to be considered. As long as the installation method is appropriate, this is not a problem, but if it is colored For materials such as steel plates, the load-bearing capacity must be considered. However, some manufacturers provide hand dryers with brackets to solve such problems. 3. Color: The color is mainly a matter of personal preference and the overall environment. Also, food factories, pharmaceutical factories, etc. try to choose the hand dryers of the original color of the material, because the spray-painted hand dryers may volatilize, which will affect food or medicine. Security. 4. Starting principle: usually manual and infrared induction two ways, now the new starting method is photoelectric, which is characterized by fast starting speed and not easy to be affected by the environment. For example, strong light may cause the infrared hand dryer to rotate continuously or start by itself , Photoelectricity is activated by blocking the amount of incoming light, thereby preventing the problem of infrared hand dryers, and also not touching the hand dryers with hands, thereby preventing cross-infection sensing positions. You can choose according to your needs. 5. Installation method: bracket installation, wall-mounted installation, and can be used directly on the desktop. 6. Working noise: the smaller the better under the condition that the hand-drying speed can be satisfied. 7. Operating power: Under the conditions that can meet the dry hand speed and maintain comfort, the lower the better. 8. Hand-drying time: The shorter the better, the suggestion is within 10 seconds. 9. Standby current: the smaller the better. 10. Wind temperature: It is usually more suitable to choose a hand dryer with a wind temperature between 35 degrees Celsius and 45 degrees Celsius, which will not waste electricity and will not feel uncomfortable.