About the method of adjusting the sound of Roots blower
2021-11-17
Summary
I 'd like to explain to you the method of adjusting the sound of Roots blower and the solution of current overload. The correct method of adjusting the air volume of Roots blower: 1. Adjust the speed of the motor. As we all know, the higher the blower speed, the greater the air volume, and the more air compressed by the Roots blower per unit time, the greater the air volume.
Explain to everyone aboutRoots blowerSound regulation method and current overload solution
Roots blowerthe correct method of air volume adjustment:
1. Adjust the speed of the motor.
As we all know, the higher the speed of the blower, the greater the air volume, within a unit timeRoots blowerThe more compressed air, the greater the air volume.
2. Adjust the motor frequency converter,
In fact, the speed of the inverter is adjusted, so the principle is the same as the above. Among them, if the belt and pulley are adjusted to change the air volume, the principle is the same, and the speed will also have a certain impact on the air volume.
3. After replacing the pulley, the size of the pulley directly affects the overall speed of the fan, and the wind volume also changes when the speed changes.
4. Adjust the bypass valve,
The valve can adjust the air volume of the blower. The larger the opening, the more air leakage, and the smaller the flow. The smaller the opening of the bypass valve, the less air leakage, and the greater the flow.
Roots blowerCurrent overload solution:
Roots blowerWhen operating under rated conditions, the surface temperature of each rolling bearing is usually below 95, the temperature of 90% of the lubricating oil in the E-mail is below 65, and the large diameter of the vibration speed bearing part is below 6.3 mm/s. When the blower is running, Please always pay attention to the condition and amount of lubricant.
Adjust slowly and adjust the load slowly to import the rated power. It is not allowed to adjust to the rated load at one time. The rated load refers to the static pressure difference between the air supply port and the exhaust port. When the exhaust port pressure is normal, please pay attention to the pressure change on the first side to avoid overload. When the blower is working normally, do not completely close the intake and exhaust valves or perform overload operation, and stopRoots blowerIn order not to damage the machine, stop running when the load is full, and do not stop the load slowly before stopping.
1. Insufficient bearing oil leads to greater resistance
When the fan is original, if the bearing oil of the motor is insufficient, or the bearing oil of the casing is insufficient, the resistance of the motor will increase, the motor current will exceed the allowable value, or the motor coil will be directly burned, (if there is an air switch, there is a protection function, The air switch will pop up.
2. Blower overload with large changes in air volume and air pressure
In addition to mechanical reasons, there are mainly system reasons. Generally speaking, the fan designed by the fan manufacturer has a certain design margin. When the motor enters water, the motor current will become higher, but it is not overload. The actual overload is manifested in the increase in air volume and The wind pressure changes, which is also the reason why the fan current is too high.
3. Fan design factors
IfRoots blowerIf the design is not good, the balance of the fan impeller will become worse, the bearing will be damaged, the load will suddenly increase, and the balance will be poor (there will be a different heart when installed, and the installation will be incorrect).
4. Overflow caused by human error
There are two artificial reasons. One is that the motor has become smaller, the valve of the blower has not been fully opened, and the blower that has lost its foundation is overflowing.
Contact Us
E-mail:
sanniu888@126.com
Telephone:
400-6531-228/0086-531-83288777
Address:East Industrial Park, Xianggong Sub-district Office, Zhangqiu District, Jinan City, Shandong Province