Siphon oil tank pressure of high-speed pump
Thread Content
The unit is equipped with a high-speed low-ammonia liquid pump, as well as a backup pump. The pressure in the siphon tank often drops below 0.7 MPa (the workshop supervisor requires that this pressure be maintained at a higher level). The pressure was increased on-site to just over 0.8 MPa, but then it inexplicably rose to 1.0 MPa. After some time, it dropped back below 0.7 MPa. I would like to know what could be the reason for this?
The pressure of the lean amine liquid pump can’t be that low, right? What keeps the pressure in your siphon tank at a constant level?
Can you upload a picture? Let’s take a look at the actual situation
I’m not sure if your buffer tank is equipped with an accumulator and is in proper operation. The pressure in the sealed tank/chamber can increase due to the rise in temperature, as well as as a result of pressure leakage from the pump chamber. However, the pressure in a sealed chamber under external pressure is generally higher than the pump inlet pressure (when not in use)