The principle of the evacuator
Thread Content
What is the principle of the low-pressure steam ejector in diesel hydrogenation?
The reduction in diameter followed by expansion created a negative pressure zone.
The working steam achieves high velocity through the nozzle, converting the pressure energy of the steam into kinetic energy. After mixing with the gas drawn in, the mixture enters the diffuser chamber, where the velocity gradually decreases and the kinetic energy is converted back into pressure energy. As a result, the pressure of the mixed gas discharged by the pump is significantly higher than the pressure in the suction chamber.
Simply put, it’s because of the suction force on the back side of the electric fan.