Rotary vortex flowmeter in the chemical industry applications

Project Overview

The precession vortex flowmeter is specially used to measure single component gas or fixed ratio mixed gas. It has been widely used in petroleum, chemical industry, semiconductor, medical instrument, bioengineering, combustion control, gas distribution, environmental monitoring, precision Instruments, scientific research, metrology, food, metallurgy, aerospace and other fields.

The precession vortex flowmeter is used for precise measurement and automatic control of gas mass flow. Using standard input and output signals, centralized computer control can be achieved. There are many forms of applications in Daqing Petrochemical Company. For example, the polypropylene device hydrogen flow meter FT-121A/B uses an intelligent precession vortex flowmeter with a measuring range of 1.45Kg/H and 9.5Kg/H.

Compared with traditional flow meters, it does not need to be equipped with temperature and pressure transmitters, and can directly measure mass flow (under standard conditions, 0°C, 101.325KPa) without temperature and pressure compensation. ).

When gas is used as a control variable in the production process (such as combustion, chemical reaction, ventilation exhaust, product drying, etc.), a mass flow controller is used to directly measure the number of moles of the gas.

If you want to maintain a quantitative mixture of gases as a mixture or batch, or if you want to optimize a chemical reaction process, there is no better technology than using a mass flow controller. The mass flow controller continuously adjusts the flow rate and can also be obtained through the display instrument.

The precession flowmeter is also a good instrument for testing the tightness of pipeline systems and valves. It directly displays the amount of air leakage. Mass flow meters are cost-effective, easy to install, and easy to operate. Using precession flow meters and mass flow controllers is one of the most reasonable choices.

Since the sensor of this type of precession flow meter is a thermal principle, if the gas is not a dry gas, it will affect the heat transfer efficiency, thus affecting the output signal and measurement accuracy of the sensor.