Precisão e aplicações dos caudalímetros de engrenagem
When measuring lubricating liquids such as oils and fuels, the elliptical gear flowmeter is a common choice due to its reliability and high accuracy. Its accuracy is typically within ±0.5% to ±1%, which is attributed to its positive displacement working principle: the fluid drives two meshed elliptical gears to rotate, and a fixed volume of liquid is discharged with each rotation, thereby achieving stable measurement.
Main factors affecting accuracy:
1. Fluid properties: Suitable for clean and lubricating liquids. Liquids containing particles or with high viscosity may affect accuracy; they need to be filtered in advance.
2. Installation conditions: Must be installed correctly as per requirements, ensuring pipe alignment, reducing vibration, and leaving sufficient straight pipe sections.
3. Calibration and maintenance: Regular calibration and maintenance are key to maintaining long-term accuracy.
Take the OM-50 model as an example:
This model fully demonstrates the advantages of the elliptical gear flowmeter:
1. Capable of measuring viscous liquids: such as fuel, lubricating oil, hydraulic oil, etc. It performs exceptionally well at medium to high viscosities.
2. Robust and simple structure: The mechanical type does not require external power supply, is durable and suitable for harsh or remote environments.
3. High cost-effectiveness: Achieve reliable measurement at a lower cost.
4. Flexible output mode: It can be equipped with mechanical counters, electronic pulse sensors, etc., facilitating system integration.
Typical application fields:
Fuel metering (diesel, biodiesel, heating oil)
Oil and hydraulic oil blending
Quantitative processing of chemicals in chemical processes
Lubrication monitoring of industrial equipment
Fuel consumption tracking of mobile devices (generators, construction machinery)
Selection suggestions:
Confirm the compatibility of the measured fluid with the flowmeter material.
Ensure the working flow is within the measurement range.
Give priority to scenarios for measuring medium to high viscosity liquids.
Plan regular maintenance, especially when the fluid is not clean.
Resumo
The elliptical gear flowmeter is a durable and highly accurate measurement option, particularly suitable for the measurement of oil products, fuels, and chemical liquids. If you need to achieve stable measurement with a simple structure, it is a worthy choice to consider. Correct selection and proper use can meet the measurement requirements of most industrial processes.
