Residence time and level control in a separator
Residence time and level control in a separator
(OP)
I'm currently designing a separator which is used to remove excess air from saturated water after passing through a saturation tank. From thread124-155681: Residence times in liquid gas separator i saw some information that is usefull for my design but I'm not too sure about the level controller design.
1)How do I know at which point should I open my valve to release my air and to release my water flow into the next tank?
2)If my valve is opened at 100%, what will happen to the pressure in the tank? Will the pressure drop be too great that the flow into the tank will increase and cause a huge increase of water depth in the tank?
3)Is there any other safety limitations that I need to consider?
Hope someone is able to help.
Alex
1)How do I know at which point should I open my valve to release my air and to release my water flow into the next tank?
2)If my valve is opened at 100%, what will happen to the pressure in the tank? Will the pressure drop be too great that the flow into the tank will increase and cause a huge increase of water depth in the tank?
3)Is there any other safety limitations that I need to consider?
Hope someone is able to help.
Alex





RE: Residence time and level control in a separator
Water enter the saturator tank from the top through a spray nozzle and exits the bottom of the saturator tank. A level controller maintains the water level in the tank.
Exiting water leaves the tank pressurized. As the discharged water flows through the discharge piping, the water will flow through a valve, that will release the water pressure as well as the saturated air that is in the water.
This type of air saturator is used for DAF systems:
http://www.acssb.com.my/httpdocs/pdf/ACEM.pdf