A steam eductor is a device used to create a vacuum, by passing steam through a “venturi” tube. In this process, a steam eductor is used to apply a constant venting suction to an oily water sump (underground storage vessel for collecting liquid):
Calculate the amount of force applied to the “manway” cover on the sump when the eductor is operating at its rated capacity, and also the direction of this force.
Will the applied vacuum from the eductor help or hinder the two pumps’ ability to move liquid out of the sump and to water treatment? Will the effect be minimal or substantial?
F = 51.07 pounds of force, downward (holding the cover onto the flange).
Although the eductor’s suction will in fact hinder the pumps’ ability to move liquid out of the sump to treatment, the effect will be minimal since 2 inches WC is tiny compared to the rated head (pressure) of the pumps at 40 feet WC.
Share your answers with us through the below comments section.
Credits: Tony R. Kuphaldt
Learn an example PLC program to control a pump based on level sensors using ladder…
In the PLC timer application for security camera recording, when motion is detected then camera…
In this example, we will learn batch mixing with PLC ladder logic program using timer…
This PLC example on manufacturing line assembly is an intermediate-level PLC program prepared for the…
In this article, you will learn the PLC programming example with pushbutton and motor control…
This article teaches how to convert Boolean logic to PLC programming ladder logic with the…