Gas Turbine Flow Meter

HQ-LWQ Gas Turbine Flow Meter
I. Overview of HQ-LWQ Gas Turbine Flow Meter
The HQ-LWQ gas turbine flow meter adopts advanced microprocessor technology, possessing advantages such as powerful functions, high calculation accuracy, and reliable performance. Its main technical indicators reach the advanced level of similar foreign products. It is an ideal instrument for gas metering in petroleum, chemical, power, metallurgical, industrial and civil boilers, as well as for metering urban natural gas, gas pressure regulating stations, and gas trading. Its working principle is as follows: When gas enters the flow meter, it is first accelerated by a special rectifier. Under the action of the fluid, the turbine overcomes resistance torque and friction torque and begins to rotate. When the torque reaches equilibrium, the speed stabilizes. The turbine speed is proportional to the gas flow rate. The rotating signal disk periodically changes the sensor's magnetic resistance, thereby causing the sensor to output a pulse signal proportional to the flow rate.

The product features the following characteristics:
1. It adopts imported German precision bearings, ensuring high accuracy, good stability, and a wide rangeability (20:1). Small-diameter flow meters require no lubrication for five years under normal operating conditions, while large-diameter flow meters only require occasional lubrication, making them easy to use.

2. The carefully designed flow channel structure avoids airflow between the bearings, improving the medium adaptability of the turbine flow meter.

3. The unique reverse thrust structure and sealing structure design ensure long-term reliable bearing operation.

4. It uses a magnetoresistive element instead of a magnetic sensing coil, avoiding magnetic attraction, improving detection sensitivity, further reducing the starting flow rate, and enhancing product stability and reliability.

5. The independent mechanism design ensures good interchangeability and convenient maintenance.

6. It integrates temperature, pressure, and flow sensors with an intelligent flow totalizer, automatically tracking and correcting the temperature, pressure, and compressibility factor of the measured gas, directly measuring the standard volumetric flow rate and total volume of the gas.

7. The main performance indicators reach international advanced levels and comply with ISO9951 standards. 8. Employing advanced low-power technology, it can operate with either internal or external power supplies; the internal battery can last for over five years.

9. The HQ-LWQ model boasts powerful functions, offering four compensation methods, three pulse signal outputs, three historical data recording methods, and two standard current signal outputs.

10. It can form a network communication system via an RS485 interface, facilitating automated management. The RS485 communication protocol conforms to the MODBUS standard.

11. The meter head can rotate 180° freely for easy installation.

Selection Table