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- Product Brand: Tianjin Blower
- Total Supply: Unlimited
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The role of centrifugal fan components The main components of centrifugal fans and their functions are as follows:
Impeller; produces indenter, transfers energy.
Chassis: Collect the gas from the impeller to the exhaust port, and convert part of the kinetic energy of the air flow into pressure energy.
Inlet adjusting damper: The output of the adjusting machine isolates the equipment from the system. (Also called deflector, some use frequency conversion technology, hydraulic coupler adjusts output,)
Spindle: transfer torque
Bearing: Bearing the radial axial load of the rotor, limiting the radial axial movement position of the rotor.
Coupling: connect the motor, transfer the shaft power
Concentrator: In the case of small loss, the airflow fills the section of the impeller inlet uniformly.
Bearing box; device bearing, filled with lubricating fluid and cooling fluid.
The role of axial fans and centrifugal fans in mechanical ventilation
1. Due to the large difference between air temperature and grain temperature, the first ventilation time should be selected during the day to reduce the gap between grain temperature and temperature and reduce the occurrence of dew condensation. In the future, ventilation should be performed at night as much as possible because the current ventilation is mainly for cooling. At night, the atmospheric humidity is relatively high and the temperature is relatively low. This reduces water loss and makes full use of the low temperature at night to improve the cooling effect. .
2. In the initial period of ventilation with centrifugal fans, condensation may occur on doors, windows, walls, and even slight dew on the surface. As long as you stop the fan, open the window, turn on the axial flow fan, and if necessary, turn the food surface. The hot and humid air inside the warehouse can be removed from the outside of the warehouse. Condensation will not occur with slow-flow ventilation using an axial fan, and only the middle and upper layers of the grain temperature will rise slowly, and the grain temperature will decline steadily as the ventilation continues.
3. When using axial flow fan for slow ventilation, because the axial flow fan's air volume is small, and the grain is a bad conductor of heat, the initial part of the ventilation is prone to slow ventilation. As the ventilation continues, the whole grain temperature will gradually balance. .
4. Grain for slow ventilation must be cleaned by a shaker, the price of the fan, and the grain entering the warehouse must be cleaned in time for the impurity area caused by automatic classification, otherwise it is easy to cause uneven ventilation.
5. Energy consumption calculation: Axial flow fan for warehouse No. 14 accumulates 50 days of ventilation for an average of 15 hours per day, sharing 750 hours. The average water content is reduced by 0.4%, and the grain temperature is decreased by 23.1 degrees. The unit energy consumption is 0.027kw. .h / t. ° C. The 28th warehouse has been ventilated for 6 days, sharing 126 hours, the average water content has decreased by 1.0%, the average temperature has decreased by 20.3 degrees, and the unit energy consumption is 0.038kw.h / t. ℃.
6.Advantages of slow-ventilation with axial fans: good cooling effect; low unit energy consumption, which is especially important today when advocating energy saving; easy to grasp the ventilation timing, which one is good and not easy to cause condensation; do not need to be equipped with a separate fan, Fan, convenient and flexible. Disadvantages: Due to the small air volume and long ventilation time; the precipitation effect is not obvious, and high-humidity grains should not be ventilated with axial flow fans.
7. Advantages of centrifugal fan: obvious cooling and precipitation effect, short ventilation time; disadvantages: high unit energy consumption; poor ventilation timing, prone to condensation.
8. Conclusion: In the ventilation for the purpose of cooling, the axial flow fan should be used for the slow, safe, energy-saving and efficient ventilation; the centrifugal fan is used in the ventilation for the purpose of precipitation.
Fan, which fan is good, Jin Blower (quality business) is provided by Jin Blower Group Co., Ltd. Fan, which fan is better, Jin Blower (Quality Merchant) is a new upgrade launched by Jin Blower Group Co., Ltd. (fuzzlinks.com) this year, the above pictures are for reference only, please call this page or the phone number on the picture For new information, contact: Mao Bingquan.
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