Different industries of Roots blower pressure calculation and choice is different, today we will introduce the Roots blower pressure calculation method.
Roots blower also known as rotary, constant volume blower. It is mainly composed of housing, shaft, gear, impeller, side cover and bearing.The advantages of Roots blower areas following : compact structure, large wind pressure, high efficiency, the air volume is basically not affected by the change of wind pressure.
Here we take a relatively simple case to analyze, for example, Roots blower for sewage aeration treatment. The pressure of this kind of blower is mainly the pressure against the water level. For example, the water level depth of the current aeration pool is 4 meters, so the pressure of the blower can only be normal when the water level is greater than 4 meters.
The Roots blower itself does not produce pressure, which changes according to the resistance received. If the water level of the same blower drops to 3 meters, the pressure of the blower pressure gauge is displayed at 3 meters water pressure.
The usual solution to the problem of low pressure of Roots blower is to replace a larger motor, but there may be a decrease in flow, so it is generally necessary to improve the speed. The pressure of Roots blower is not the pressure that Roots blower can produce, but the pressure that it can load. The low pressure of Roots blower is actually the insufficient pressure and insufficient strength under the normal operation of the blower. If forced to use, the motor will be damaged.Therefore, if you want greater pressure, you must replace the motor with greater power. After the motor power increases, the torque force will increase, which can directly increase the exhaust pressure of the blower. Changing the system requires pressure, which is simply to change the diameter of the outlet of Roots blower. If it is large, it will reduce pressure, and if it is small, it will increase pressure. The pressure relief valve can be installed on the blower. The pressure relief valve can accurately maintain the safe and stable pressure. Once the pressure is overpressure, the pressure relief valve can be fully opened and timely pressure relief.
Because the wind pressure of Roots blower is not limited by the speed of the blower, no matter how the speed changes, its wind pressure can remain unchanged. And the air volume is proportional to the speed of the blower, in a certain pressure range, the pressure changes with the change of the system, and changes with the change of the system resistance, it also have self-adaptability; It has the hard exhaust characteristic of forced gas transmission, that is, when the pressure changes, the flow rate changes little.
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