Greg Dake
Member
I have a project on the horizon where I will be controlling the speed of 2 positive pumps in series. The first pump is a homogenizer and the second pump in series in the pipe is a booster pump to pump the product a long distance. The pumps are going to be controlled based on flow, with the obvious problem of needing to NEVER drop below the flash point on the inlet of the 2nd pump in series. This means we'll have to maintain about 40psi at the inlet.
I don't have any more details as of yet on this project. My concern and question is that my co-worker assures me that controlling flow rate with 2 positive pumps in series is extremely challenging. Can someone enlighten me on this? What is the difficult part, other that assuring you don't slow down the first pump too much and cavitate the 2nd pump?
I will be controlling the pumps with drives, my control options are wide open for whatever I'd like to use to control this flow loop......I'm sorry I don't have any further details as of yet on the project. I know the flow rate will need to be adjusted via the HMI I'm also integrating into the system......Can someone outline what the complexities of this type of control loop is?
TIA,
Greg
I don't have any more details as of yet on this project. My concern and question is that my co-worker assures me that controlling flow rate with 2 positive pumps in series is extremely challenging. Can someone enlighten me on this? What is the difficult part, other that assuring you don't slow down the first pump too much and cavitate the 2nd pump?
I will be controlling the pumps with drives, my control options are wide open for whatever I'd like to use to control this flow loop......I'm sorry I don't have any further details as of yet on the project. I know the flow rate will need to be adjusted via the HMI I'm also integrating into the system......Can someone outline what the complexities of this type of control loop is?
TIA,
Greg