Phase I and Phase II Projects of 60,000 t/a Electronic Grade Polysilicon

MG9650 Series Vortex Precession Flowmeter

● Medium：3.4 MPa hydrogen, chlorosilane
● Output Signal：4~20mA+HART LCD
● Process Temperature：330℃
● Explosion proof：ExiaⅡCT4
● Ingress protection：IP65
● Accuracy：±1.0％
● Process Connection：Flange
● Diameter：DN100, DN250

● Process Section of Cold Hydrogenation Unit and Rectification Process Section in the Polysilicon Industry
● Measurement Scheme for large diameter pipeline, High-Pressure and Low-Density Hydrogen
● With low requirements for straight pipe sections (3D in the front and 1D in the back), the installation is more flexible
● Designed with 4 piezoelectric ceramic sensors to eliminate the influence of external vibrations to the greatest extent
● Adopting a split-type signal converter and a dual-transmitter structure, the temperature and pressure compensation measurement is more accurate
● More than 190 sets of vortex precession flowmeters are used in total for Phase I and Phase II of this project

MG5600+MG1100 Series Pressure Products

Output Signal：4~20mA+HART LCD
Process Temperature：-45℃-200℃
Explosion proof：ExiaⅡCT4
Ingress protection：IP66
Accuracy：±0.05%
Process Connection：HG/T 20615 CL150 2" RF

There is a large temperature difference between day and night at the project site. The pressure transmitter should have good linearity and be able to achieve accurate measurement under the premise of drastic changes in the on-site temperature. The MG5600 series pressure transmitters have 21 pressure points and 7 temperature points for temperature and pressure compensation, which perfectly solves the problem of on-site temperature drift.

MG9350 Series Rectangular Flowmeter

● Medium： Applied to the measurement of solid-liquid mixed flow of chlorosilane + silicon powder
● Product Name：Rectangular Flowmeter
● Temperature：124℃
● Pressure：0.4MPa
● Density：1355kg/m³
● Output：4~20mA+HART

The rectangular flowmeter is a throttling element that generates a differential - pressure signal. According to the hydrodynamic equations, based on the corresponding relationship between the differential - pressure signal and the flow rate, the fluid flow rate can be accurately calculated. This kind of throttling element is based on the wedge - shaped and Venturi principles. By combining the advantages of both, it has made significant improvements in key performance and has become a high - precision and high - reliability throttling element, thus broadening the application range of differential - pressure flowmeters.

MG9800 Series Metal Rotameter

● Medium：Hydrogen / Chlorosilane
● Temperature：170℃
● Pressure：3.36MPa
● Density：2.19kg/m³
● Output Signal：4~20mA+HART
● Application Process: Cold Hydrogenation Pipeline

● Hydrogen embrittlement prevention treatment, degreasing to remove oil
● Magnetic isolation sensor, without additional openings, reducing leakage points
● Laser-engraved dial, which can be equipped with a backlight and allows for online replacement and calibration of the transmitter
● The rotameter features small size, convenient use, stable measurement, high cost-performance, etc., and has extremely low requirements for the upstream straight pipe section during installation
● Multiple stainless steel measuring tubes are available, with optional PFA or PTFE linings, suitable for various fluid media