A Roots blower is a constant-flow blower; does it still maintain a constant flow even when the resistance is high? !
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Rotary vane blowers are known as constant-flow blowers; if the resistance at the downstream end is too high, the flow rate remains unchanged while the current increases? ! The resistance is greater then; didn’t the motor burn out? Did this fan burn out not under no-load conditions, but due to excessive resistance? ! Please give me some advice!
The presence of a Roots vacuum pump means that the Roots pump will not burn out when operating without a load
By \"backend,\" he probably means the outlet side; the pressure of rotary vane fans should not be too high. The manufacturer provides values for the maximum allowable pressure. If the outlet pressure is too high, the motor’s load increases, the rotor heats up, which can lead to seizure
If the air volume remains unchanged, it won’t catch fire.
The flow rate and pressure of a Roots blower do not vary much; if the outlet pressure exceeds the designed value, it can lead to overload. If the motor lacks protection, this may result in the motor being damaged
From a technical standpoint, a safety valve is installed at the outlet to prevent the outlet pressure from rising too high.
The fan will not burn out when running under no load; if the outlet resistance is too high, the safety valve will activate
The rotor clearance is only 0.25 mm; as the pump temperature rises, the rotor expands and the clearance decreases until it disappears, causing the rotors to lock together!