1.Classification of sewage in sewage discharge:
Sewage is divided into two parts: domestic sewage and industrial sewage. The domestic sewage is divided into: fecal sewage and ordinary domestic sewage.
2.Introduction of flow meters for discharging sewage:
Some of the two parts of the domestic sewage are discharged to the outside of the building separately, and some are discharged together. The discharge of industrial sewage needs to be treated and then discharged.
In the discharge process, we need to consider the corrosiveness of the sewage and the state of the sewage. Some sewage contains some solid substances. When selecting the meter for this sewage, various factors are required. of consideration. For the measurement of water, there are multiple flowmeters for selection, and the electromagnetic flowmeter is the first choice to measure the flow of the liquid.
3.Performance comparison of sewage discharge flow meters:
Ultrasonic flowmeter: This kind of flowmeter is measured by the transmission of sound waves, so the transmission of sound waves must be transmitted in clean liquids. If there is scum or solid matter in the medium, it will affect the transmission of sound waves. Therefore, we do not recommend the use of sewage as a medium.
Turbine flowmeter: The turbine flowmeter has an impeller in the sensor. When the fluid passes through, it will drive the rotation of the impeller. We can judge the flow rate by the speed of the rotation of the impeller. This also cannot be selected for sewage measurement. The impurities and solid substances in the sewage will directly damage the impeller, so we do not recommend you to choose it here.
Electromagnetic flowmeter: The electromagnetic flowmeter calculates the flowmeter through the principle of electromagnetic induction. When the fluid passes through, the magnetic field line is cut to calculate the flowmeter. The sensor of this flowmeter is empty without any obstructions, and the solid matter in the sewage is It will not affect the measurement of the flowmeter. Another aspect is that the electromagnetic flowmeter can have a variety of linings, which can be very good for the measurement of corrosive liquids. Therefore, we recommend that you choose electromagnetic flowmeters for sewage discharge measurement.