What Flow Meters Are Used in the Sewage Treatment Process

In the sewage treatment process, accurately measuring and monitoring flow is the key to ensuring the regular operation of the treatment system. The following will detail four commonly used flow meters and discuss their applications in sewage treatment.

What Flow Meters Are Used in the Sewage Treatment Process

Electromagnetic Flow Meter

An electromagnetic flow meter is an instrument that uses the principle of electromagnetic induction to measure the flow of conductive liquids. Its working principle is based on the ampere current; when the conductive liquid passes through the magnetic field, an induced electromotive force will be generated, the size of which is proportional to the flow rate of the liquid. The flow meter consists of an electromagnetic sensor and a converter. The electromagnetic sensor is placed in the fluid pipeline, and the converter is responsible for processing the sensor signal output and converting the flow rate into a flow value.

In sewage treatment plants, electromagnetic flowmeters are usually used to measure the flow rate of inlet and outlet pipes and adjust the operating parameters of the treatment system based on the monitoring results. It has the advantages of high precision, robust reliability, and comprehensive monitoring and has been widely used in the sewage treatment industry.

Digital electromagnetic water flow meter

Nozzle Flow Meter

Nozzle flow meters use the speed at which a nozzle travels through a fluid to measure the flow rate and thereby calculate the flow rate. It works by pulsing a pulse and measuring the time it takes to propagate through the fluid, calculating the flow rate based on the speed of sound and propagation time. The meter has the advantages of non-contact measurement, no moving parts, corrosion resistance, etc., and is suitable for measuring various fluids.

In sewage treatment, probe flow meters are often used to measure flow in sewage pipes and integrated with treatment systems to achieve automated control. It accurately measures flow and plays a vital role in sewage treatment.

Vortex Flow Meter

A vortex flow meter is a mechanical flow meter that determines the flow rate by measuring the frequency of vortex generated in the fluid. Its working principle is that when the liquid flows through the vortex street in the device, alternating vortices will be formed behind the vortex street. The gaps between the vortexes generate pressure pulsations, causing vibration of the vortex street. By measuring the vibration frequency of the vortex street, the flow rate and flow rate of the fluid can be determined.

During the treatment process, vortex flow meters are often used to measure the flow in the inlet and outlet pipes to monitor the load of sewage treatment equipment and control the treatment process. It has the advantages of simple structure, stability, reliability, and strong sewage resistance and has been widely used in the sewage treatment industry.

Natural Gas Vortex flowmeter

Suspended Liquid Level Gauge

Suspension level gauges can be used for liquid level monitoring and flow measurement in sewage treatment processes. It uses changes in the float’s buoyancy to measure the fluid level and converts it into a corresponding flow value through a sensor connected to the float. In treatment plants, suspended liquid level gauges are usually used to monitor fluid levels in sedimentation tanks or regulating tanks and to adjust operating parameters of treatment equipment based on changes in liquid level.

These four flow meters play an essential role in the sewage treatment process. They can accurately measure and monitor flow, helping to ensure the treatment system’s stable operation and treatment effect.

Direct- Mount-Seal-differential-pressure-level-Transmitter

Turbine Flow Meter

A turbine flow meter is an instrument that determines the impact force of a fluid on a turbine blade. When the fluid passes through the turbine blades, the turbine blades will be impacted and rotate. The speed of rotation is proportional to the flow rate of the fluid. Smooth flow can be determined by measuring the rotational speed of the turbine blades.

In the sewage treatment process, turbine flow meters are usually used to measure the flow rate in sewage pipes and monitor and adjust the operating parameters of the treatment system based on the results. It has the advantages of simple structure, high precision, and fast response speed and has been widely used in the sewage treatment industry.

liquid turbine flowmeter (5)

 

Mass flow meter

A mass flow meter is an instrument that determines flow rate by measuring the mass flow rate of a fluid. Its working principle is to use the inertial force or pressure difference generated when the fluid passes through the pipeline to measure the mass flow rate of the fluid. Mass flow meters usually use thermal excitation, thermal expansion, sound velocity, and other principles to measure, and they have the advantages of being stable and reliable.

In the treatment process, mass flow meters are usually used to measure the flow rate in high wastewater or sewage treatment systems and in situations where high precision requirements for sewage are required. It can help control the flow in monitoring and sewage treatment systems to ensure the system’s stable operation and treatment effect.

Coriolis-mass-flowmeter

Summarize

During the treatment process, the flow meter is one of the critical devices that ensure the regular operation of the treatment system. Flow meter types such as electromagnetic flow meter, probe flow meter, vortex flow meter, suspension level meter, turbine flow meter, and mass flow meter have been widely used in the sewage treatment industry.

They have different measurement principles and applicable range and accuracy requirements. Suitable selection of flow meters and reasonable application are of great significance to the efficiency of sewage treatment, environmental protection, and human health.

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