2021-08-20 14:27:01

What is the reason for the abnormal outlet temperature of the roots blower?

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In view of the working principle of the Roots blower, its outlet temperature is generally higher than the inlet temperature. The estimated outlet temperature is calculated as: inlet temperature + pressure. This formula can roughly calculate the outlet temperature of the Roots blower. When its outlet temperature is abnormal, it may be caused by the following reasons:


1. Its lubricating effect is not good


The low quality of its lubricating oil causes its mechanical wear to be large, produces excess heat, and increases the temperature of the outlet gas.


2. The safety valve fails


The safety valve is a device for coordinating the pressure of the Roots blower. When the pressure is too high, the safety valve will play a role in regulating the pressure, and the failure of the safety valve will cause the pressure of the Roots blower to be too high, causing the gas compression ratio to increase, and then generating too much The heat caused the increase of the temperature of the Roots blower and the gas outlet.


3. Friction of its fan parts


During its use, or during the R&D and production of Roots blowers, mechanical wear or product quality is not up to standard. Such phenomena will aggravate its mechanical wear and generate a lot of heat.


4. Its rotor is skewed


Its rotor is deformed or tilted, which will cause the dynamic balance of the impeller to be unbalanced. The friction between the impellers generates heat and increases the outlet temperature. The unbalance of the rotor will also be accompanied by other failures, such as excessive pressure, noise, vibration, etc. . If there is abnormal noise and vibration during its use, the rotor should be inspected in time.


5. Its installation space is small


The installation space is too narrow, resulting in poor heat dissipation of the Roots blower, which in turn affects the temperature of the exhaust gas.