In the case of pressure and not full pipes, the flow rate at the outlet of the pumping station can be measured in a variety of ways. Here are some common measurements:
Magnetic flap flowmeter:
Magnetic flap flowmeters are suitable for liquid pipes with a certain pressure. Through the action of the fluid, the flap swings in the pipe, creating a change in the magnetic field, and the flow rate is determined by detecting the change in the magnetic field.
Electromagnetic Flowmeter:
An electromagnetic flowmeter is a flow measurement device suitable for conductive liquids and can be used in pipes with a certain pressure. The flow rate is calculated by measuring the voltage induced by the electromagnetic.
Ultrasonic Flow Meter:
Ultrasonic flow meters are suitable for situations where the tube is not full and with a certain pressure. The flow rate is measured by sending and receiving ultrasonic waves, with less impact on the pipe.
Differential pressure method: The pressure difference between the two points can be measured by installing pressure sensors at two locations in the pipeline, and then the flow rate can be estimated by the characteristic curve of the pipeline or the flow calculation formula.
Pneumatic Flow Meter:
Pneumatic flow meters are suitable for flow measurement at a certain pressure. The flow rate is determined by measuring the effect of the fluid on the measuring device by means of pneumatics.
Thermal Flow Meter:
Thermal flow meters determine flow rates by measuring the change in temperature as fluid flows through a sensor. Suitable for non-full pipes and under pressure.
Vortex Flow Meter:
Vortex flowmeters are suitable for fluid measurement with pressure. The flow velocity is calculated by measuring the frequency of the vortex by measuring the frequency of the vortex by the fluid impacting the turbine.
When choosing a measurement method, it is necessary to consider the specific application requirements, the characteristics of the pipeline, and technical and economic factors. In addition, ensure that the selected flow measurement equipment is suitable for the nature and environmental conditions of the liquid being measured to ensure the accuracy and reliability of the measurement. The best approach may be to work with a professional instrumentator or engineer to ensure that the most appropriate measurement technology is selected.