Low-carbon emission reduction may make you feel like a car factory. In fact, energy conservation is also a major trend in the wind turbine industry. Specific to the medium-pressure fan, is there any way to make the medium-pressure fan more energy-efficient and environmentally friendly during use? According to the theory of fluid mechanics, the flow of gas will be accompanied by losses. For example, the pressure of the gas stream after the gas flows through the throttling device is correspondingly reduced, that is, they lose the useful work of the fan. Since all of this happens during the process of the gas being delivered by the fan, it is wasting the energy of the fan.
Working principle of medium pressure fan
The impeller of the medium pressure fan (also known as the centrifugal fan) is covered with a mechanical outer casing, and the center of the impeller is an air inlet. When the medium-pressure fan is working, the power equipment runs to drive the impeller to rotate, and the air is sucked from the air inlet. During the rotation of the blades of the centrifugal fan, a force is applied to the gas to increase the pressure and speed of the gas, and the gas is discharged from the exhaust port along the blade channel by the centrifugal force.
During the working process, although the rotation of the impeller increases the pressure and speed of the gas, the various changes of the gas are small. Therefore, in the design and use of the centrifugal fan, the gas is usually regarded as incompressible. The fluid is processed. The gas treatment process of the medium pressure fan is completed in the same radial plane, so the medium pressure fan is also called the radial flow centrifugal fan.
Medium pressure fan performance parameters
Among the performance parameters of the medium-pressure fan, the gas flow, pressure, power delivered, efficiency, and impeller speed are all important in the selection process. The gas flow parameter of the medium pressure fan represents the volume of gas that the fan can process in a unit time, and the pressure of the medium pressure fan refers to the internal gas pressure value during the operation of the medium pressure fan.
The efficiency of the medium pressure fan refers to the ratio between the shaft power of the medium pressure fan and the effective power of the actual process gas. At present, the full-pressure efficiency of the centrifugal fan is about 90%, and in the future development of the centrifugal fan, the efficiency value will be one of the goals pursued by the researchers.
The role of medium pressure fan
Medium pressure fans are widely used for dust and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and air intake in boilers and industrial furnaces; cooling and cooling in air conditioning equipment and household appliances Ventilation; drying and selection of grain; inflation and propulsion of wind tunnel sources and hovercraft.
Maintenance of medium pressure fan
When using the medium pressure fan, pay attention to cleaning the surface of the fan, check the cleaning bearings, and tighten the bolts. Check the air inlet and outlet, adjust the tightness of the V-belt, check the lubrication area, and replace the oil and seal ring. Pay attention to those matters during the normal operation of the medium pressure fan
1? If the flow is found to be too large, it does not meet the requirements for use, or a small flow is required in a short time, and the throttle device can be used for adjustment.
2? Regularly check the sensitivity of the thermometer and oil mark, and control the oil level of the bearing housing within the specified allowable range.
3? Driving in the fan? If abnormality is found during parking or operation, it should be checked immediately.
4? For the minor faults found in the inspection, the cause should be identified in time, and the problem should be eliminated or dealt with. If the minor fault cannot be eliminated, or if a major fault is found, it should be checked immediately.
5? In addition to the replacement of the lubricant after each disassembly, the lubricant should be replaced regularly.
6? The bearing housing of the E-type transmission should be inspected periodically (quarterly) to clean and replenish the lubricating oil to prevent the bearing from burning out.
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