Roots water ring vacuum pump overload problem and working principle

Roots water ring vacuum pump overload problem and working principle

Roots water ring vacuum pump overload There are two main methods:

(1) the use of mechanical automatic voltage regulator bypass valve.

Bypass valve installed in the bypass piping Roots pump outlet and the inlet between. This valve controls the pressure difference between the pump inlet and outlet does not exceed the rating. When the pressure reaches the rated value, the valve opens automatically by pressure differential that Roots vacuum pump outlet and inlet connected, so that the pressure difference between the inlet and outlet decreases rapidly, then Roots vacuum work under almost no pressure load. When the pressure is lower than the rated value, the valve automatically closes the gas pumped from the previous level by Roots vacuum pump. Roots vacuum relief valve with bypass with a pump can be started simultaneously, making the unit easy to operate.

(2) the use of hydraulic couplings

Using hydraulic couplings can also prevent the pump overload occurs, the pump can operate at high differential pressure. Hydraulic coupling is installed between the pump and motor. Under normal operating conditions, the torque transfer coupling rated torque from the motor to the pump end. Roots vacuum pump maximum pressure is determined by the maximum torque delivered by hydraulic couplings, hydraulic couplings while the maximum torque which can be transmitted by the amount of liquid to adjust. When the pump or with a pump and start at high differential pressure, fluid couplings in the speed difference that is generated inside the slide, passing only a certain moment, the pump work slowdown. As the gas pumping load decreases, Roots vacuum gradually accelerate to rated speed.

Roots water ring vacuum pump works with similar roots blower. Due to the continuous rotation of the rotor, gas is drawn from the intake port into the space v0 between the rotor and the casing, and then is discharged through the exhaust port. Because after breathing v0 space is completely closed state, so there is no gas in the pump chamber compression and expansion. But when the top edge of the rotor turned vent, when v0 space communicates with the exhaust side, due to the high side of the exhaust gas pressure, then rushed back to some of the gas space v0 in order to enable gas pressure suddenly increased. As the rotor continues to rotate, the gas is discharged out of the pump.

Roots water ring vacuum pump works Features Roots pump cam essentially the same, but is a Roots-type rotor. It can transport tens of thousands of centipoise viscosity liquid.

Roots water ring vacuum pump is mainly there are two counter-rotating rotors located in the pump body, by a pair of synchronized gear. Cam rotor pump, as both Futaba, there are multi-leaf clover. Many kinds of shapes.