What kind of injection pump do you usually choose when injecting additives into gasoline or diesel?
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What kind of injection pump do you usually choose when injecting additives into gasoline or diesel? Are there many screw pumps? Why? Please give expert guidance!
Plunger metering pumps are usually used to meet the requirements of small flow, high head and small leakage. Screw pumps are suitable for situations with high viscosity and large amounts of impurities.
I just saw a drawing. Both gasoline and additive pumps use three-screw pumps. Are these additives thicker in viscosity?
Use a metering pump because the metering pump can adjust the stroke, and the adding amount is small and stable. Screw pumps are used for unloading crude oil at docks and transporting slag-reducing oil products with high viscosity.
Using a metering pump, I have used
My unit uses a metering pump. The stroke of the metering pump can be calculated based on the density, time and oil volume, so that the addition can be achieved evenly and facilitated control. Screw pumps and swing rotor pumps are suitable for using additives with high viscosity and are generally used when preparing mother liquor. The advantage is that you are not afraid of taking time off.
Use a plunger metering pump (volume pump) with small flow rate and high lift. It can adjust the flow rate and control the amount of additives added.
A plunger metering pump is usually used because the metering pump can adjust the stroke, has a small addition amount, can control the feed amount, has a high lift, operates smoothly, can transport sticky materials, and is pulse-type when feeding. Small footprint.
The viscosity of gasoline and diesel additives is high, the addition ratio is low, the pump requires a small flow rate and a high lift. I have made a pump for injecting gasoline and diesel additives, and I chose an imported gear pump, which is used in the highway oiling system of the oil depot. The flow meter solenoid valve used is added proportionally through the highway oil control system, and the pipeline is coordinated.
May I ask what is the general range of lift for such a pump?
The size of the lift is related to the filling process and the viscosity of the additives used. The head we use here is 06.MPa~1.0MPa. We need to obtain relevant parameters from the additive injection equipment manufacturer and the additive manufacturer before conducting pipeline hydraulic calculations.
The four-injection system of our company's atmospheric and vacuum device uses a Milton Roy mechanical diaphragm metering pump. A single pump head is used for small quantities, and a double pump head is used for large quantities. The flow control is very accurate.
Choose a plunger metering pump because the metering pump can adjust the stroke, and the addition amount is small, so the feed amount can be controlled, the lift is high, and the operation is smooth.