The electric energy utilization rate of air suspension fan motors is higher than that of ordinary fan motors. The motor is a device that converts electromagnetic energy into mechanical kinetic energy. 70%-95% of the electromagnetic energy is absorbed by the motor and converted into mechanical energy. Kinetic energy, this is actually the power value. Part of the remaining 30%-5% of the electromagnetic energy is consumed by the motor itself, so it is equivalent to wasted.

The cost of the air suspension fan motor is much higher than that of ordinary motors in terms of design, materials, and production. The air suspension fan motor can be well converted into mechanical kinetic energy. You can increase the working power of the motor according to the following:

1. Improve the raw materials of the motor and use silicon steel sheets with better magnetic permeability.

2. Improve the machining accuracy of the motor, reduce the cost of mechanical equipment, and use higher-power bearings.

3. Improve the parameters of the motor and use a cast copper motor rotor.

The motor of the air suspension fan starts quickly and can save 15% of electromagnetic energy than ordinary motors, which can extend the operating life of the fan.

Centrifugal fans are machines currently on the market for ventilation, dust removal and refrigeration. Their use reduces the hazards caused by air circulation in buildings. All the materials used in the centrifugal fans themselves are its main materials, including The materials of the casing, impeller, and air inlet should involve many types. In order to adapt to different working conditions and process standards, the corresponding materials and models are also different.

One is carbon steel, which is a material commonly used in centrifugal fans. It refers to iron-carbon alloy steel with a carbon content of less than 2.11%. This type of material is characterized by being easy to process, cheap, and suitable for most materials at room temperature and Centrifugal fans without smoke and corrosion.

Another main material is FRP, which is also what we call fiberglass and is a common material for anti-corrosion centrifugal fans. This type of material has excellent anti-corrosion characteristics and is resistant to corrosion by various acids, alkalis and salts. FRP centrifugal fans are used in many gas treatments in the chemical industry. Stainless steel is also a commonly used main material for centrifugal fans, but it actually does not refer to just one material, but a type including more than 100 actual materials, mainly including austenitic, martensite, ferrite, duplex stainless steel, etc. , is a commonly used main material for anti-corrosion centrifugal fans and high-temperature centrifugal fans, which is both corrosion-resistant and heat-resistant.

In addition, some centrifugal fans will choose plastic as its main material, usually PP. However, because its strength is lower than that of fiberglass, its range of use is smaller, and large ones are rare. However, due to its special characteristics, it may be used in anti-corrosion fans. In addition, there are also centrifugal fans made of titanium, steel lined with plastic, steel lined with fiberglass and other materials and composite materials. Although not common, they will also play an important role in specific fields.

1. The selection of air suspension blowers has always been a topic of concern to customers, because the selection of air suspension centrifugal blowers is not only related to the customer's cost, but also directly affects the use of air suspension blowers on site. If the user chooses an air suspension blower. If the fan is not suitable for the local area, the function of the air suspension blower cannot meet the needs of the user. Therefore, a good selection process can help users better determine the type of air suspension blower and reduce obstacles in selection.

2. The air suspension fan is actually a constant pressure device with variable flow rate. When the rotational speed reaches a certain value, the theoretical pressure-flow curve of the air suspension fan should be a straight line. The actual characteristic curve is curved because of internal losses. The pressure generated by an air suspension fan is greatly affected by changes in inlet air temperature or density. For a given intake air volume, the pressure resulting from a higher intake air temperature (lower air density) is lower. For given pressure and flow characteristics, there are power and flow characteristics. When an air suspension fan is operated at a constant speed, the required power increases as the inlet temperature decreases for a given flow rate.

3. In actual application, the function of the air suspension fan is not only related to the type of the air suspension fan, but also affected by the local area where the air suspension fan is used. Therefore, in addition to model selection, it is also necessary to judge the conditions of the use site to ensure the basic function of the air suspension fan.

1. Adjustment mechanism: The adjustment mechanism is installed in front of the impeller inlet and consists of a casing, a guide vane, a crankshaft, an electric actuator, a conditioning diffuser, etc. The gap between the impeller cover and the impeller ensures the normal operation of the fan; the electric actuator adjusts the rotation angle of the guide vane so that the air rotates before entering the impeller; and the use of a diffuser regulates the fan's operating range to be wider.

2. Impeller: The impeller designed based on the three-dimensional movement theory has high efficiency. After rigorous precision machining, the impeller is calibrated through dynamic and static balancing. In order to meet the needs of different working conditions, the impeller material can be made of cast aluminum, forged steel and stainless steel.

3. High-speed rotor: The high-speed rotor consists of an impeller, a high-speed gear and a high-speed shaft. The impeller is connected to the high-speed shaft through a tie rod, and the torque is transmitted through the end pin. In order to ensure the stable and firm operation of the fan, the overall balance accuracy of the high-speed rotor reaches G1 level.

4. Spiral shell: A spiral shell with a circular cross-section is used. The spiral wall is designed as a plurality of spiral lines, which conforms to the law of cyclone movement and has little impact on the electric fan. Therefore, the fan activity efficiency, vibration and noise are very low.

5. Gear: The added gear pair is involute teeth. The surfaces of the large gear and small gear have been nitrided and hardened to ensure that the fan operates smoothly at high speeds with low vibration and noise.

6. Bearings: The high-speed shaft support uses tilt pad rolling bearings, which are composed of multiple movable pads and can be offset around the fulcrum. It has excellent shock resistance and can automatically adjust according to changes in load and speed.

7. Shaft seal: adopts separate labyrinth seal structure. Good sealing and easy to disassemble. The seal can be replaced without disassembling the impeller.

8. Lubrication system: The lubrication system is divided into two parts: the fuel tank and the lubricating oil circuit. The base of the device serves both as an oil tank and can be equipped with an immersion electric heater and a temperature control switch to ensure the temperature of the lubricating oil. The lubricating oil circuit includes main oil pump, electric pump, double-barrel filter, etc. The main oil pump is driven by a low speed gear. When the unit is running normally, it can provide lubricating oil to lubricate gears and bearings under normal pressure. The electric spoke pump provides pre-lubrication for the system before the equipment is started, maintains oil pressure during emergencies and shutdown periods, and then serves as a reserve oil pump. The air-suspended blast oil filter has high filtration accuracy and is equipped with a differential pressure alarm system.

The maintenance and maintenance of centrifugal fans can be carried out at different stages. For example, maintenance and maintenance must be carried out during the operation period of the equipment. Normally, during the operation period of the centrifugal fan equipment, its operation and filling should be inspected and recorded every hour.

If a large gap is found with the previously recorded situation, the cause of the difference should be analyzed immediately and appropriate countermeasures should be taken to resolve it. What should be more noted is that during the operation of the centrifugal fan equipment, we must especially check its stability, the condition of the sealing ring of the roller bearing box and the temperature of the roller bearing.

In addition, when using centrifugal fan equipment, everyone must also pay attention to controlling the temperature of the environment and keeping the construction site environment clean. Generally speaking, the device can maintain normal operation when the temperature does not exceed 40 degrees. However, once the natural ambient temperature exceeds this range, long-term operation is likely to cause equipment damage.

Therefore, if the ambient temperature is found to be high, heat reduction treatment should be carried out in the data center immediately to maximize the service life of the centrifugal fan. In addition, after each use of the equipment, the dust and oil stains on the motor cooling centrifugal impeller and the motor itself must be removed immediately to reduce the motor temperature by 2 to 4°C, thereby ensuring better heat transfer of the motor. actual effect.

In addition, there are some small gaps in the centrifugal fan equipment itself. Therefore, after being used for a period of time, more dust and other sediments are likely to adhere, causing the friction between the centrifugal impellers to greatly increase, thereby causing damage to the centrifugal impellers.

Since the air suspension fan is used for a long time, it is necessary to clean the fan. We can't avoid difficult to clean the place when cleaning. If you want to clean the air suspension fan, you have to disassemble the fan, because the inside of the air suspension fan There are many details, and everyone requires special attention to this situation.

After the fan is disassembled, the parts of the air suspension fan need to be cleaned, and then the air suspension fan needs to be reassembled. When disassembling the fan: We are required to remove the casing and bearing box first. If these two parts are not disassembled, cleaning the fan will be more troublesome. When cleaning, we cannot disassemble and clean the part from the direct transmission of the motor to the fan to prevent mechanical failure of the motor.

Whether it is cleaning the fan or maintaining the fan, it is necessary to check the conditioning function of the air suspension fan to see if there is any damage to the conditioning function of the air suspension fan. Therefore, we can refer to the above when disassembling and assembling the fan. This can reduce the chance of problems after cleaning the fan, ensure that users can use the fan normally, and ensure that user production is not affected.