Issues related to vapor ejectors
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When we want to recover waste steam, we use water to absorb it, thereby condensing the waste steam into water. But it is unknown what the minimum pressure at the water inlet of such a vapor ejector should be. Because if the pressure requirement is high, we need to use a pump. Also, what is the pressure drop of this type of vapor ejector? It would be great if you could provide a detailed explanation of this steam recovery process. Thank you!
The poster’s request is a bit too high! With so little data available, it’s too difficult to ask sailors to calculate the pressure required for water to drive the injector and the pressure drop across the injector! To calculate these values, it is recommended that the original poster provide parameters such as exhaust steam pressure, flow rate, and temperature, so that others can give you some suggestions!
Waste steam is at atmospheric pressure, with a slight positive pressure; its temperature is 100 degrees, and the flow rate is 1 ton per hour
It is recommended to consult manufacturers of ejectors and let them select the appropriate model; additionally, if the enterprise has high-pressure steam, it can be used to generate low-pressure steam through entrainment.
Your request seems quite professional. How is it calculated? I would appreciate any recommendations for reference books or standards; thank you!