Working Principle Of Steam Ejector Or Vacuum System Or Steam Injector System.

Let’s know about the Working Principle Of a Steam Ejector or Vacuum system. This can make it easy to operate chemical, Ammonia processes, Basic Processes, Chemical Engineering, Chemical Process Technology, Chemical Industries, Lubricant Manufacturing, Manufacturing Industries, Oil and Gas, Petrochemicals, Power Generation, or any other processing plant.

A Steam Ejector or Steam Injector is a device used to suck the gas or vapor from the desired vessel or system. A Steam Ejector or Steam Injector is similar to a vacuum pump or compressor.

# A Steam Ejector or Steam Injector is a static piece of equipment with no moving parts consisting of 4 components:-

 =>  The Motive Nozzle.

 =>  Motive Chest.

 =>  Suction chamber.

 =>  Diffuser.

# How it Works:-

=>  The ejector converts the pressure energy of motive steam or other working fluid into velocity. 

=> Thermodynamically, high velocity is achieved through adiabatic expansion of motive fluid through a convergent-divergent nozzle.

=>  This expansion of the motive fluid from the motive pressure to the suction fluid operating pressure results in supersonic velocity at the nozzle exit. The motive fluid expands to a pressure equal to the suction fluid pressure, This creates a driving force to bring suction fluid into an ejector.

=>  The velocity exiting a motive fluid nozzle is very high. High-velocity motive fluid entrails and mixes with the suction fluid. The resulting mixture is still supersonic. As the mixture passes through the convergent throat and divergent sections of the diffuser, high velocity is converted back to pressure. 

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