Professional turbine flowmeter | The difference between turbine flowmeter and vortex flowmeter should be explained in detail and comprehensively.

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1. How to solve the problem of unstable instantaneous flow display of gas turbine flowmeter

The solution to the unstable instantaneous flow display of LWGY gas turbine flow residue meter needs to be targeted according to specific reasons. Common reasons and solutions are as follows: the straight pipe section does not meet the requirements. Reason: the length of the straight pipe section before and after the flowmeter is insufficient (standard is 10D in the front and 5D in the back), or there are interference components such as elbows and valves, which cause the fluid flow state to be disordered and affect the measurement stability. Solution: Adjust the pipeline layout to ensure that there is a straight pipe section with 10 times the diameter in front of the flowmeter and 5 times the diameter behind it; If the space is limited, a rectifier (such as a honeycomb rectifier) can be installed to improve the fluid state. Reasons for uncleanliness and uncleanliness of the medium or blockage of the impeller: The medium in the pipeline contains impurities (such as particles, oil stains, etc.), and the absence of a filter leads to impeller jamming or inflexible rotation, manifested as flow fluctuations. Solution: Install a filter upstream of the flowmeter (recommended filtration accuracy ≤ 50 μ m) and regularly clean the filter screen. Disassemble the flowmeter, clean the impeller and bearings, check for wear or jamming, and replace vulnerable parts if necessary. Reason for turbulent flow or unstable pressure of the medium: The medium in the pipeline itself has pulsating flow (such as the outlet of the compressor) or pressure fluctuations, and the lack of a rectifier leads to measurement distortion in the flowmeter. Solu

tion: Install a buffer tank or stabilizing device in front of the flowmeter to reduce pressure fluctuations. Install rectifiers (such as porous plate rectifiers) to eliminate turbulence and ensure uniform fluid flow through the flowmeter. Reason for actual flow exceeding the range: The flow rate in the pipeline is lower than the minimum range of the flow meter or exceeds the maximum range, resulting in increased measurement error or signal saturation. Solution: Check the range of the flowmeter (usually indicated on the nameplate or instruction manual), and confirm whether the actual flow rate is within the range (recommended to work within 30% -70% of the range). If the flow rate is too low, a small-diameter flowmeter can be replaced; If the flow rate is too high, it is necessary to use a large range instrument or parallel diversion. The reason for the quality problem of the flowmeter itself is due to a decrease in sensor sensitivity, amplifier failure, or abnormal signal transmission, resulting in unstable output signals. Solution: Check if the connection between the sensor and amplifier is loose, and tighten the wiring terminals again. Use an oscilloscope or multimeter to detect sensor output signals (such as frequency or pulse signals). If the signal is abnormal, return to the factory for repair or replace the sensor. If it is an amplifier failure, you can try replacing the amplifier module with the same model. Reasons for pipeline incompleteness or external interference: The pipeline is not completely filled with medium (such as liquid in gas or inclined installation position), resulting in uneven force on the impeller. External strong electromagnetic fields (such as frequency converters and high-power motors) interf

Professional turbine flowmeter | The difference between turbine flowmeter and vortex flowmeter should be explained in detail and comprehensively.

1. How to solve the problem of unstable instantaneous flow display of gas turbine flowmeter

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