Post by cb92 on May 5, 2008 19:25:30 GMT -5
I'll start this here. Don't know if it's been done already. What I propose is an add-on booster pump to raise line pressure from a centrifugal pump.
Centrifugal pumps have an efficient spot in their curve. As they approach shut off pressure, amps go up and flow goes down. From my experience, it seems to take longer to get the last five pounds of pressure than any. It's that last five or so I'm talking about.
How about taking a vane motor-pump combo, like the turbo on a car, and boosting the pressure. The input for the booster motor would come from a tee in the pressure pipe from the centrifugal pump. The exhaust from the booster motor would go to the suction line of the centrifugal pump. I know it sounds like short-circuiting the pump, but the shallow well adapter works in a similar fashion, and the pump still works. Maybe a little less efficiently, but without it it has little suction.
The suction for the vane pump would come from the pressure pipe also. It comes in at line pressure and leaves at a higher pressure. I presume the exhaust from the vane pump would also go to the line to the pressure tank.
You would think the vane pump would short circuit, I'm hoping not. I'm hoping that maybe the placement of a check valve in the right spot would keep that from happening.
This whole adapter works continuously while the pump is going through it's pressure range. At lower pressures, it's a parasite, not doing much good. It only comes into effective play when the centrifugal pump hits the higher pressures. Then it quickly tops off the pressure, and the pump shuts off.
The idea could be complicated with pressure regulating valves and stuff like that , but I'm hoping it could be kept simple and cheap. A simple improvement on a popular pump to make it use less electricity.
Personally, I always liked the old piston pumps.
Centrifugal pumps have an efficient spot in their curve. As they approach shut off pressure, amps go up and flow goes down. From my experience, it seems to take longer to get the last five pounds of pressure than any. It's that last five or so I'm talking about.
How about taking a vane motor-pump combo, like the turbo on a car, and boosting the pressure. The input for the booster motor would come from a tee in the pressure pipe from the centrifugal pump. The exhaust from the booster motor would go to the suction line of the centrifugal pump. I know it sounds like short-circuiting the pump, but the shallow well adapter works in a similar fashion, and the pump still works. Maybe a little less efficiently, but without it it has little suction.
The suction for the vane pump would come from the pressure pipe also. It comes in at line pressure and leaves at a higher pressure. I presume the exhaust from the vane pump would also go to the line to the pressure tank.
You would think the vane pump would short circuit, I'm hoping not. I'm hoping that maybe the placement of a check valve in the right spot would keep that from happening.
This whole adapter works continuously while the pump is going through it's pressure range. At lower pressures, it's a parasite, not doing much good. It only comes into effective play when the centrifugal pump hits the higher pressures. Then it quickly tops off the pressure, and the pump shuts off.
The idea could be complicated with pressure regulating valves and stuff like that , but I'm hoping it could be kept simple and cheap. A simple improvement on a popular pump to make it use less electricity.
Personally, I always liked the old piston pumps.
