Ejector for deaerator vent steam recovery

Boiler deaerator by thermal deaeration will generate lots of vent steam. If this steam is released into atmosphere, it is not only a waste of energy, but also pollution to environment.

As a famous venturi ejector manufacturer in China, we developed water jet ejector for deaerator vent steam recovery. Heat of vent steam is recovered in the form of hot water.

Principle:

Pressurized water is utilized to generate jet flow for the suction of vent steam based on Venturi principle. (when steam is used as motive fluid, this ejector could be called thermocompressor). Water is mixed with vent steam directly. Two fluids will exchange heat and mass. Low temperature water is heated. In diffuser chamber of water jet ejector, stream regain pressure to flow forwards. Water and vent steam is mixed uniformly by this venturi ejector. Temperature of mixture could be adjusted by varying water flow. Due to fast suction & mixing, it could avoid formation of scale.

Mixture is then discharged into storage tank, where air is released and water is sent to low pressure deaerator or other equipment that needs water. Storage tank is equipped with automatic water level controller.

Application:

This ejector is widely used in industries like power station, co-generation, petrochemical, textile, food, paper making, steel for deaerator vent steam recovery. For more information, pls click steam injection heater.

Diagram: