What problems should be paid attention to when measuring natural gas with gas waist wheel flowmeter? Posted by : admin / Posted on : Aug 08， 2020

At present, domestic flow meters commonly used to measure natural gas mainly include gas waist wheel flow meters, gas turbine flow meters, precession vortex flow meters and orifice flow meters. Let's take a look at what advantages the gas waist wheel flowmeter has when measuring natural gas, and what problems should be paid attention to.
Gas waist wheel flowmeter (also known as Roots flowmeter) can be used not only to measure the flow of dry gas, but also to measure the flow of wet gas (associated gas), while the orifice flowmeter and gas turbine flowmeter are not It is suitable for measuring the associated gas containing liquid droplets. Therefore, the gas waist wheel flowmeter has certain advantages in this respect. So, what are the problems that should be paid attention to when measuring natural gas with Roots flowmeter? Let's take a look at it specifically:
1. Since natural gas may contain some impurities, it is generally necessary to install a filter upstream of the flowmeter to prevent the flowmeter from being blocked or jammed, and also to regularly discharge, check and clean the filter;
2. In order to prevent liquid accumulation during measurement, the flowmeter should be installed vertically or higher than the process pipeline as much as possible, and the liquid accumulation should be discharged regularly;
3. Before the flowmeter is put into use, check whether there are welding slag and other impurities in the pipeline. If so, it should be cleaned, and the bypass should be opened to prevent the flowmeter from being damaged by high-speed operation;
4. On-site personnel should regularly observe and pay attention to the pressure before and after the flowmeter to determine the fault in time.