Booster pump refers to a pump installed on the pipeline for pressure boosting, which is a special term among many pump categories. Its main uses include water heater pressure boosting, low water pressure in high-rise buildings, sauna, bathing and other pressure boosting, pressurization of apartments with insufficient water pressure on the top floor, solar automatic pressure boosting, reverse osmosis water purifier pressure boosting, and so on. A booster pump can be roughly understood as a gas station in the middle of liquid transportation. When the power decreases as the liquid is transported to a certain distance, installing a booster pump in the middle can transport the liquid further. When using a booster pump, it is also necessary to adjust the pressure, but many users do not know how to operate it. Therefore, the following content has been compiled for your reference only.
There are several main methods for adjusting the pressure of pipeline booster pumps:
1. Throttling adjustment: The simplest method is to adjust the flow and head by adjusting the opening of the pump outlet valve.
2. Reflux regulation: A portion of the liquid discharged by the pump is returned to the inlet of the pump through the reflux valve, thereby changing the actual displacement in the pump's output pipeline.
3. By changing the oil temperature to adjust the flow rate, when the temperature is low, crude oil is heated out of the station with a heating station in the middle.
4. Automatic regulation: An automatic control system composed of transmitters, with regulators and regulating valves composed of the medium regulated by the transmitter, regulator, and regulating valve.
5. Change the speed adjustment of the pump: Q2/Q1=n2/n1, H2/H1=(n2/n1), N2/N1=(n2/n1). In the formula, the flow rate, head, and power of the Q1, H1, and N1 centrifugal pumps are adjusted at the speed of n1. The flow rate, head, and power of Q2, H2, and N2 centrifugal pumps at a speed of n2. This set of formulas is called the law of proportion. When the speed change is less than 20%, it can be considered that the efficiency remains unchanged, and the calculation error using it is not significant.
6. The adjustment method of changing the number of impellers and changing the outer diameter of impellers: The multi-stage centrifugal pump adopts the adjustment method of changing the number of impellers. If the process needs to reduce Q and h, one or more impellers in the multi-stage centrifugal pump can be removed.
7. Cutting impeller diameter: Reduce the impeller diameter in the pipeline booster pump, thereby changing the performance and characteristic curve of the centrifugal pump, adjusting the flow rate, pump head, and shaft power to achieve the purpose of pressure regulation.