A hydraulic jet ejector is a mechanical device with three functions: vacuum extraction, condensation, and drainage. It operates by utilizing a stream of water under pressure, which is evenly distributed through nozzles with a certain inclination, converging at a focal point. Due to the high velocity of the jet stream, a negative pressure is formed around it, creating a vacuum inside the chamber. Simultaneously, the secondary steam comes into direct contact with the jet stream for heat exchange, with most of the steam condensing into water. The uncondensed steam and non-condensable gases are then expelled through an expansion pipe, further enhancing the vacuum.
Working Principle
Hydraulic jet ejectors create a vacuum effect by forming a high-speed jet of water, generating negative pressure. The high-speed jet of water produces negative pressure around it, creating a vacuum inside the chamber. The secondary steam comes into direct contact with the jet water for heat exchange, with most of the steam condensing into water. The uncondensed steam and non-condensable gases are then expelled through an expansion tube, further enhancing the vacuum.
Structure composition
The hydraulic jet atomizer is composed of main body, cover, nozzle, nozzle seat plate, guide disk, expansion tube, and check valve, among other components. The nozzle features a multi-nozzle design to achieve a larger steam contact area, facilitating heat exchange and achieving better vacuum effects. The entire unit is compact, precise, and highly durable, suitable for vacuum evaporation systems, which can simplify the process flow and save on equipment.
Application Fields
Hydraulic jet pumps are widely used, primarily in vacuum and evaporation systems such as vacuum pumping, vacuum evaporation, vacuum filtration, vacuum crystallization, drying, and deodorization processes. They are extensively applied in sugar production, chemical industry, food processing, salt manufacturing, monosodium glutamate, milk, fermentation, and some light industry and defense sectors.
