LWQ series integrated gas turbine flowmeter

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1Overview

LWQSeries gas turbine flowmeterIt is a new generation of high-precision and high reliability gas precision measuring instrument developed by absorbing advanced technology of flow meters at home and abroad and optimizing design, integrating theories of gas mechanics, fluid mechanics, electromagnetics, etc. It has excellent low-pressure and high-pressure measuring performance, multiple signal output methods, and low sensitivity to fluid disturbances. It is widely used for measuring gases such as natural gas, coal to gas, liquefied gas, and light hydrocarbon gas.

2、 Principle

When the fluid flows into the flowmeter, it is rectified and accelerated by the integrated rectifier. Due to the angle between the turbine blades and the fluid flow direction, the turbine generates rotational torque. After overcoming the friction torque and fluid resistance torque, the turbine begins to rotate. Within a certain flow range, the angular velocity of turbine rotation is proportional to the fluid volume flow rate. According to the principle of electromagnetic induction, a magnetic sensor is used to sense a pulse signal proportional to the volume flow rate of the fluid from a coaxial rotating signal wheel. The signal is amplified and enters the microprocessor unit together with temperature and pressure sensor signals for processing, and the instantaneous flow rate and cumulative amount of the gas are directly displayed in the window.LWQ series integrated gas turbine flowmeter

3、 Technical parameters

1. Basic parameters: see Table 1

2. Tested media: natural gas, coal to gas, air, etc

3. Environmental temperature: -20 ℃ to+50 ℃

4. Medium temperature: -20 ℃ to+80 ℃

5. Explosion proof rating: Exib Ⅱ BT4, Exd Ⅱ BT6

6. Output signal: Voltage pulse, 4-20mA two-wire system

7. Communication interface: RS-485 communication interface is selected.

8. Power supply: Sensor: 12V DC (pulse output) Transmitter: 24VD (current output) 3.0V lithium battery (on-site display)

LWQ series integrated gas turbine flowmeter
The flow range is shown in the table below