When Roots blower is used in summer and winter, the inspection density of the blower should be increased from 1 to 2 times a day to 3 to 4 times. In case of failure, the blower should be shut down for inspection.
Attention shall be paid to the water-cooled Roots blower in winter to prevent the water-cooled pipe from freezing or cracking, and the water inside the water-cooled pipe shall be cleaned up when it is shut down. In summer, the inlet air temperature of Roots blower is generally controlled below 40 ℃. If the temperature exceeds this temperature, the Roots blower may be overheated and the motor is easy to burn.
The low temperature in some areas may also be related to altitude. If the altitude is high and the temperature is low, special attention should be paid to the selection of Roots blower. The selection cannot be carried out according to normal conditions. Altitude has an impact on air volume and pressure. The general type roots blower is mainly placed above the ground, and the ambient temperature will affect the roots blower and shorten its service life. Therefore, it is better to build a fan room to effectively control the ambient temperature and protect the roots blower.
Generally, the higher the pressure of Roots blower is, the higher the temperature is, and the higher the speed is, the higher the temperature is. Normally, every increase of 20kpa will increase 1.1 ℃, and every increase of 200 rpm will increase 0.9 ℃. In addition, the larger the fan is, the higher the temperature will be.
If the temperature of the gas we transport exceeds 40 ℃, such as saturated steam with high temperature, the requirements for the fan will also be increased, such as stainless steel material, anti-corrosion treatment for the fan, replacement of sealing method, cooling of bearing and oil tank, etc., which requires special treatment before use.
Similarly, why the temperature of fans of the same model produced by different manufacturers is different depends on the adjustment of clearance, the quality of bearings, and so on! The normal operating temperature range of Roots blower is 30-90 ℃, and the outlet temperature of blower is proportional to the pressure. Our calculation method for the body temperature of Roots blower: room temperature+10 ℃ temperature rise for every 1000 mm water column rise (within this range, it is the normal value, and if it exceeds this range, it means that the temperature of Roots blower is too high).
The general type roots blower is mainly placed above the ground, and the ambient temperature will affect the roots blower and shorten its service life. Therefore, it is better to build a fan room to effectively control the ambient temperature and protect the roots blower. The low temperature in some areas may also be related to altitude. If the altitude is high and the temperature is low, special attention should be paid to the selection of Roots blower. The selection cannot be carried out according to normal conditions. Altitude has an impact on air volume and pressure.
With the temperature gradually rising in summer, the temperature at the inlet of Roots blower is high. In addition, the temperature rise caused by the pressure rise during the operation of the blower makes the surface temperature of the fuselage higher than other times. The specific normal temperature of Roots blower during operation is determined by the inlet ambient temperature+working pressure value. Roots blower can also be used in winter, and can be used in the environment of minus 30 degrees Celsius. Pay more attention to the use of roots blower in winter. Low temperature environment and high temperature environment will damage the roots blower.
I believe that after reading the above contents, you should also have a better understanding of the operating ambient temperature of Roots blower. I hope it will be helpful to you.
Text label: Roots blower
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