Product Overview:

JK-DMFThe series mass flowmeter is based on the Coriolis principle to achieve direct and precise measurement of fluid mass flow rate, without the need for any conversion or correction of pressure, temperature, viscosity, density, etc. Its structure consists of two parts: a sensor unit and a transmitter unit. The instrument is designed and manufactured according to the national standard of intrinsic safety explosion-proof type, and the explosion-proof mark isExd ib II CT5 Gb.

Coriolis mass flowmeter can directly measure the mass of fluids with high accuracy（0.1%~0.2）It has a wide range of applications (can measure various non Newtonian fluids, various slurries, suspensions, high viscosity fluids, etc.), low installation requirements (not high for the front and rear straight pipe sections of the instrument), reliable and stable operation, and low maintenance rate.

Product Features:

1. Almost all fluids can be measured, including high viscosity liquids, mud, and multiphase fluids;

We can provide on-site and rack mounted separate converters;

High precision digital signal processing ensures precise and stable measurement;

The special detector isolation system greatly reduces the interference of external stress and vibration;

The simple measurement flow path facilitates automatic emptying and cleaning, and can be used in the food industry;

Can ensure high precision and stability in a large range;

Accurate density measurement;

Measure the concentration of solutions, suspensions, and emulsions(Calculation based on water content and pure oil)；

Temperature range:-200℃～+350℃；

High performance based on microprocessors;

Save the set parameters and accumulated amount during power outage;

high definitionLCDDisplay;

Choose different measuring tube materials;

provideEN，ASMEorJISStandard flanges, or provided upon request;

Principle:

When a is located inPWhen a particle inside a tube that rotates with a point as the center of rotation moves towards or away from the center of rotation, a consistent force will be generated, as shown in the principle diagram1:

The quality in the picture isδmThe particles move at a constant speedvAround a fixed pointPAnd at angular velocityOhWhen moving inside a rotating pipeline, this particle will obtain two acceleration components:

Normal accelerationαr(centripetal acceleration), whose magnitude is equal toO2RDirection orientationPPoint;

tangential accelerationαt(Coriolis acceleration), whose magnitude is equal to2ωvDirection andαrVertical.

According to Newton's second law of motion (force)=qualityXAcceleration), generating Coriolis accelerationαtIt must be thereαtApply a corresponding force in the direction of, with a magnitude equal to2 ω V δ MThis force comes from the upward rotating pipeline. The force acting in the opposite direction on the pipeline,FC = 2 ω V δ M(abbreviated as Coriolis force). In the figure, the fluidδm=ρAΔxTherefore, the Coriolis force can be expressed as:

ΔFc=2ωvδm=2ωvρAΔx=2ωδqmΔx

Where:AFor the cross-sectional area inside the pipeline

δqm=δdm/dt=vρA

For a specific rotating pipeline, its frequency characteristics are constant,Δ FCOnly depends onδqmTherefore, directly or indirectly measuring the Coriolis force exerted by the fluid flowing in a rotating pipeline can determine the mass flow rate, which is the basic principle of a mass flowmeter.