Abstract: misting fan is a kind of outdoor refrigeration system or open indoor refrigeration system, can suppress dust, adjust the atmosphere, water droplets evaporation can reduce the surrounding temperature 4-8 degrees. What is the principle of the misting fan? What if the misting fan doesn't work? The following small series for you to introduce the misting fan working principle and common troubleshooting methods.
Principle of misting fan
A: The water of the centrifugal
misting fan is produced by the centrifugal force under the action of the rotating dish and the aerosol particle spraying device, so the evaporation surface area is greatly improved; Droplets are blown by a powerful fan, which greatly improves the liquid surface wind speed and speeds up the diffusion of gas molecules. This kind of misting fan uses centrifugal force to generate droplets, so it is called centrifugal misting fan.
B: high pressure
misting nozzle type fan Water under the action of high pressure water pump, with dozens of kilograms of pressure, through the
high pressure micro fog nozzle, the droplet diameter less than 10 microns, the evaporating surface area is greatly increased as a result, the micro fog through a powerful fan blow out air, greatly improves the liquid surface wind speed, speed up the gas molecular diffusion, the evaporation of water is greatly increased, Water absorbs heat in the evaporation process, reducing the temperature, and can improve the relative humidity of the air, reduce dust, purify the air; This kind of fan is through the high pressure using the nozzle to produce a micro fog, so it is called high pressure nozzle misting fan.
Common faults of misting fans
1. The fan shaft part is to ensure that there is lubricating oil, otherwise the blade can not be dragged by the above motive. If you are at home, you can choose to turn off the power, and then toggle the wind blade, if the rotation is stiff, basically there is no lubricating oil.
2. Wear and tear caused by long use. If a fan is used for a long time, the motor will wear out, and the shaft sleeve of the motor will burn easily after wear.
3. The fan does not turn due to overheating. There is a motor in the fan device, and there will be an overheat circuit breaker in the motor. If there is a short circuit in the winding, the heat will increase for a short time, so that the motor will "strike" and stop moving.
4. The starting capacitance becomes smaller. When the fan is used for a long time, the capacitance will be reduced, resulting in the motor starting torque becomes smaller, unable to drive the load.
5, many times the cause of the fan blade does not turn, is the problem of poor maintenance. If the wind blade is turned stiff after the power is turned off, some lubricating oil should be dropped into the rotating shaft, so that it can be lubricated, so as not to affect the motor to drag the wind blade.
6, for the wear caused by the wind blade does not rotate, the simplest or replace the parts, especially the sleeve, if the wear is easy to burn.
7. If the capacitance becomes smaller and the misting fan does not turn, you can remove the capacitor and replace it with a new capacitor of the same model. It is recommended to choose one 20% larger than the original capacitor, which will have better rotation effect.
8. If the axial clearance of the rotating shaft is too large, you can choose to adjust the gasket after removing the motor. But remember to install the motor back, pay attention to the rotor must be concentric with the bearing, lubrication with screws slowly diagonal twist, and finally use a wooden handle to knock the shaft, to ensure that it is concentric.
9, if it is because of electrical fault, you can check the wiring of each line, sometimes wire damage, you can repair the problem.
Application of misting fan
misting fans are mainly used in outdoor restaurants, entertainment venues, bus stations, train stations, waiting rooms, hotels, workplaces, loading docks, zoos, gardens, shopping centers, exhibitions, cinemas, fountains and so on to create various kinds of fog. It can also be used in agriculture, poultry farms, mushroom farms, circus arenas, aviaries, kennels and animal feeding grounds. Misting fan can make the environment quite comfortable. Improve the growth, propagation and industry of various poultry. misting fan is an outdoor cooling system or an open-air indoor cooling system. You can move it around, and it uses centrifugal technology instead of high-pressure technology. It has no nozzle. Therefore, there is no need to consider the blocking problems caused by the filtration system or nozzle. There are no complicated pump connections or complicated cable combinations. It is easy to move, use and maintain.
The above is a simple description of common troubleshooting and principle of
misting spray fan. If you have more information, we can also communicate.