The role of centrifugal fans in industry
Release time:
2021-10-07
Centrifugal fans are generally divided into negative pressure fans, axial fans, and centrifugal fans. However, the operating principles vary due to the structure of the blower, so please use the installation manual immediately after installation. When disassembling a general centrifugal fan, please pay attention to the following points. Let's understand the role of centrifugal fans in industry!
Centrifugal fanGenerally divided into negative pressure fans, axial fans, and centrifugal fans. However, the operating principle varies due to the structure of the blower, so please use it immediately after the installation manual when disassembling or installing. However, when disassembling a general centrifugal fan, please pay attention to the following points. Let's understand the role of centrifugal fans in industry!

1. Ventilate with a centrifugal fan; at the beginning of the year, windows and fences may condense, and the surface of the grain may have fine condensation. Turn off the fan, open the windows, close the axial fan, and occasionally turn the grain surface. Just blow the dry cold air from the refrigerator outside.
2. Grain that has stopped slow ventilation must be cleared through an impact screen, and the grain entering the warehouse must be actively classified, timely clearing the formed impurity areas to avoid uneven ventilation.
3. Due to the large temperature difference, the first ventilation time is set during the day to reduce the temperature difference, thus exacerbating condensation. Disadvantages: small air volume, long ventilation time. The precipitation effect is not obvious, and high moisture grain should not be blocked by the axial fan.
4.Centrifugal fanWhen stopping slow ventilation, due to the small air volume of the axial fan and the heating of the grain, there is no good superconductor. At the beginning of ventilation, the general position ventilates quickly, but as ventilation continues, the temperature of the grain in the entire warehouse gradually becomes uneven.
5. Conclusion: In ventilation aimed at cooling, using an axial blower stops insurance, achieving efficient and energy-saving slow ventilation. Ventilation aimed at precipitation uses a centrifugal fan. On the 28th, the warehouse accumulated ventilation for 6 days, sharing 126 hours, with moisture evenly decreasing by 1.0%, and temperature evenly decreasing by 20.3 degrees, with a single energy consumption of 0.038kw.h/t. Now, the ventilation stops in the morning. This ventilation focuses on cooling, so the humidity of the morning air is always high, and the measurement value is very low. This way, moisture consumption decreases, and the high temperature in the morning is fully utilized, improving the cooling effect.
6. Advantages of stopping slow ventilation with an axial fan: excellent cooling effect; low energy consumption, particularly important for advocating energy saving; ventilation machines are easy to control, not prone to condensation, and do not require a blower, making them convenient and flexible.
7. Advantages of centrifugal fans: significant cooling and precipitation effects, short ventilation time. Disadvantages: high potential energy consumption, and the controller of the ventilation machine is not prone to condensation. When the axial blower stops slow ventilation, there will be no condensation, and the temperature of the middle and lower layers of grain drops sharply. Continuous ventilation will only cause the temperature of the grain to fluctuate downwards.
8. Energy consumption planning: Warehouse No. 14 used an axial fan for ventilation for 50 days, averaging 15 hours per day, sharing 750 hours, with moisture evenly decreasing by 0.4%, and grain temperature evenly decreasing by 23.1 degrees, with a single energy consumption of 0.027kw.h/t. The use of centrifugal fans is based on classification, and when ventilating, it is necessary to control the wind speed. If the wind speed is too low, it will affect the use of the fan. Centrifugal fans have the characteristics of temperature reduction and decreased precipitation, but they also have shortcomings. In the future, with technological advancements, the technology of centrifugal fans will continue to improve.
The above introduction isCentrifugal fanthe role in industry. If you need to know more, feel free to contact us!
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