Oil transfer from truck to tank

[ken0564]

I have been put in a project for transferring diesel type oil (basically a mix of oils, but mostly diesel) from transport trucks to a tank from which it will then go onto further processing.

I am trying to size this pump and having some difficulty. Can anyone be of assistance in helping me on this?

Appreciate all your help in advance.

 

[dtn6770]

Start by identifying all knowns needed to define your hydraulics (distances, elevations, NPSHA, fluid properties, etc.). Another significant variable you need to determine is the pumping rate or how quickly you want to be able to unload a truck taking into account not sucking in the truck tank. Look at pump suction and discharge pipe sizing for velocity and line losses and take those aspects in account. The GPSA Data Books and Cameron Hydraulic Data book have useful information on all this.

Bundle all that information up and call your friendly neighborhood pump vendor or get up close and personal with pump catalogs and start comparing curves to find a match with your system conditions. Expect an interative process.

 

[TenPenny]

What size are the trucks? You're probably dealing with a 4" connection off the tanker. The only head you'll have to overcome is from the bottom of the tanker to the top of the receiving tank, assuming that the tank is vented/not pressurized. Typically, you'll want to minimize the length of pipe from the truck to the tank.

Your desired flow rate is a big factor - because it determines how long the trucker has to stand around.

 

[Artisi]

Contact your local pump supplier.

Phitsanulok
Thailand

 

[JJPellin]

Sizing the pump should be pretty straightforward once you get all the necessary information together as noted above. In similar projects, I have had some trouble because of requirements around truck unloading. Depending on the product and the trucking company’s requirements, it is often very important that the truck is completely empty. Selecting a centrifugal pump and control system that will allow the truck to be pumped "dry" requires careful consideration. If you are building the unloading station, you can slope the pad slightly depending on the nozzle location on the truck to aid the process. Then you either select a pump that can run dry or select a control system that will shut the pump off automatically when the pump is empty. Beware of a system that depends on the driver to manually stop the pump when he hears cavitation.