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Solid flow measurement system (capacitance)

1. Product Function
1, pulverized coal gasification pipeline pulverized coal flow velocity, density, flow measurement, participation in measurement, control and interlocking;
2, pulverized coal injection system pulverized coal flow velocity, density, flow measurement;

2. Product Features
1, advanced technology, mature models, accurate measurement results, stable and reliable, to avoid remote calibration;
2, the industry's unique density of the original signal acquisition technology, compared with the differential technology, in the stability, accuracy has obvious advantages for the measurement results of the stability, accuracy, real-time provided a good guarantee;
3, Mature and reliable mathematical model of density calculation, the calibration process is simple and easy, to ensure the accuracy of the measurement of density (100mg / cm3 ~ 650mg / cm3) within the scope of the whole working conditions.
4, excellent original signal amplification processing (adaptive amplification technology) technology to make the flow rate is stable and accurate measurement covers a larger range of density conditions 60mg / cm3 ~ 890mg / cm3);
5, with advanced correlation and stability algorithms, measurement results with excellent accuracy, stability, real-time;
6, high wear-resistant, high-strength structural design, unique circuit design and selection of electronic components, has good high temperature performance and anti-environmental corrosion, to ensure the safety and life of equipment.
7, assembly type lining design, easy to replace the liner, significantly reduce customer maintenance costs later;
Note: This equipment is only suitable for inert gas conveying dense phase coal powder condition, the use of air delivery there may be caused by the excitation of static electricity explosion.


3. Product Composition
System consists of two parts, namely the host and sensor:
(A) host (single wall-mounted)

(B) host (plug-in box, a rack of four hosts, a single host two signal output)


(C) Sensor


4.Technical Parameters


Parameter item



Flow rate range

  0.0~15m/s(Pulverized coal density required for stable, accurate flow rate measurements should not be less than 60mg/cm3);


Density range
Effective measurement range




Pulverized coal mass flow measurement

0 ~ 1.5Akg / s. A is the pipe cross-sectional area, unit cm2;


Flow measurement accuracy

Better than ± 3% (under well-calibrated conditions);


Working pressure

The maximum working pressure 6MPa (beyond this standard to be customized);


Transmission medium maximum working temperature



Pipe diameter



Sensor power supply

24V DC


Host (secondary instrument) power supply

220V AC


Host (secondary instrument) signal output

Two 4 ~ 20mA (two signal output, flow rate, density, flow three election two)


Host (secondary instrument) power output

24V DC


Sensor and host (secondary instrument) communication

RS485, the distance is not more than 1000m


Sensor and the host (secondary instrument) connection

Four-wire system


Sensor protection rating



Sensor explosion-proof rating

Ex d ⅡB T6 Gb