The basic principles of steam ejectors are mainly based on the principles of energy conversion and fluid dynamics. Here’s a detailed explanation of its rationale:
Steam source
A steam ejector first obtains high-temperature steam by connecting to a steam source (e.g., boiler, steam generator, etc.). The high-temperature and high-pressure state of steam provides the energy basis for it.
Steam nozzle
Steam flows out of a steam source, passes through pipes and controls, and enters a steam nozzle. Steam nozzles are usually designed with a small hole, and the flow and speed of steam can be controlled by adjusting the size of the small hole.
Working fluid inlet
The other end of the steam nozzle is connected to the inlet of the working fluid. The working fluid can be water, air, etc. The steam and working fluid are in contact with each other at the jet port.
Ejection effect
The high-velocity steam is ejected through the jet port, creating a violent interaction with the working fluid. This interaction results in the formation of a low-pressure area near the nozzle where the working fluid is drawn into the ejector from the inlet.
Accelerated mixing
The working fluid entering the ejector is mixed with high-velocity steam and accelerates under the action of steam. The mixed fluid has a high velocity and kinetic energy.
Energy Conversion
The velocity and kinetic energy of the mixed fluid can be used to drive equipment or perform other work such as driving turbines, compressed air, etc. Through this process, the steam ejector realizes the conversion of the thermal energy of the high-temperature steam into kinetic energy, thereby accelerating and pushing the working fluid.
In addition, the steam ejector also has the advantages of simple structure, convenient use and high efficiency, and is widely used in many industrial fields, such as cleaning, heating, disinfection, etc.
To sum up, the basic principle of the steam ejector is to use the energy of high-temperature and high-pressure steam to convert it into high-speed fluid through the nozzle, and interact with the working fluid, so as to realize the conversion and transfer of energy.
