What is a spray fan? Application of spray fan

 
A spray fan is a type of cooling system generally used outdoors or in an open, large indoor space. The spray system can suppress dust and regulate the atmosphere, and the heat absorbed by the evaporation of water droplets can reduce the ambient temperature by 4 to 8 degrees. This article will introduce the spray fan from five aspects, such as the principle of the spray fan, the application of the spray fan, the common faults of the spray fan and the picture of the spray fan.
 
 

The principle of the spray fan

 
Under the action of the rotating dish and the spray device, the water produces ultrafine droplets because of the centrifugal force. This greatly increases the evaporation surface area of the droplets. The droplets are then blown through a powerful fan, which greatly increases the surface wind speed of the liquid and can accelerate the diffusion of gas molecules. This type of spray fan uses centrifugal force to produce droplets so it is also called a centrifugal spray fan.
 
 
 

The use of spray fans

Spray fans are commonly used in outdoor restaurants, some large entertainment venues, passenger and train station waiting rooms, hotels, loading docks and zoos, shopping centers, fairs, movie theaters, gardens, fountains and other places to create a variety of fog. On the other hand, it can also be used in agriculture, poultry farms, mushroom cultivation grounds, aviaries, dog kennels and animal feeding grounds, etc., its presence can make the environment very comfortable. The spray fan can be moved wherever you want, and it uses centrifugal technology instead of high-pressure technology. It has no nozzle, so there is no need to pipe the filtration system or whether the nozzle will block. It also doesn't have a complicated pump connection or some complicated cable combination. Therefore, whether it is mobile, use or maintenance is very convenient.
 
 
 

Common faults of spray fans

 
1, the fan shaft part must have lubricating oil, otherwise the blade in the above motive is not dragged. If you use it at home, you can first turn off the power, and then move the wind blade, if you find that it rotates very stiff, usually there is no lubricating oil for this reason.
 
2, a long time will cause spray fan wear. The long-term use of the fan will cause the motor to wear out, and the shaft sleeve of the motor is likely to burn out after wear.
 
3, overheating causes the spray fan to not turn. There is a motor in the device of the spray fan, and there will be an overheating circuit breaker in the motor, if there is a short circuit in the coil winding, the heat will increase rapidly in a short time, so that the motor will not move.
 
4. The capacity of the starting capacitor becomes smaller. After the spray fan is used for a long time, the capacitance will be reduced, which makes the motor start torque smaller and unable to drive the load.
 

 
5, many times cause the spray fan blade does not turn because of maintenance problems. If you turn off the power and rotate the blade by hand, you should use some lubricating oil to drop into the shaft, so that it will not affect the engine to drag the blade.
 
6, if the wind blade caused by wear does not rotate, then directly replace the parts of the spray fan, especially the shaft sleeve.
 
7, if the capacitance capacity is small cause the fan does not turn, you can directly remove the capacitor, for a new model of the same capacitor, here I suggest choosing 20% larger than the original capacitor will get better rotation effect.
 
8, if it is because of electrical failure can check the wiring of the lines, may sometimes be because of wire damage directly repaired.