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Industry Information
The elliptical gear flowmeter does not have certain requirements for the front and rear straight pipe sections.
2012-3-10 11:19:55

Precautions and installation requirements for using oval gear flowmeter

是计量流经管道内液体流量总和的容积式流量计,我公司的流量计具有测量精度高,受液体粘度影响小,表前不需要安装直管段,,广泛用于石油、化工、医药卫生等油类及高粘度介质的累积流量测量。 Oval gear flowmeter is a volumetric flowmeter that measures the sum of the liquid flow in the pipeline. Our company's flowmeter has high measurement accuracy and is not affected by the viscosity of the liquid. There is no need to install a straight pipe section before the table. It is widely used in petroleum, chemical, Cumulative flow measurement of oils and high-viscosity media such as medicine and health. The elliptical gear flowmeter after installation can ensure sufficient accuracy when used, and it is a more accurate flowmeter. However, if the flow rate of the measured medium is too small during use, the effect of the leakage error of the instrument will be prominent, and sufficient measurement accuracy cannot be guaranteed. Secondly, when using an elliptical gear flowmeter, pay attention to the temperature of the measured medium must not be too high, otherwise it will not only increase the measurement error, but also may cause the gear to jam. After long-term use, the gears inside the oval gear flowmeter will be corroded and worn, which will affect the measurement accuracy. Therefore, it is necessary to pay attention to observation and take it apart regularly for inspection. If conditions permit, it is better to perform calibration regularly. The flow measurement has nothing to do with the flow state of the fluid. This is because the elliptical gear flowmeter relies on the pressure head of the measured medium to push the ellipse gear to rotate for measurement. The elliptical gear flowmeter has high measurement accuracy and is suitable for measuring the flow of high-viscosity media, but it is not suitable for fluids containing solid particles. Clean the pipes before installing the flowmeter. If the liquid contains solid particles, a filter must be installed upstream of the pipeline; if there is gas, an exhaust device should be installed. During installation, the elliptical gear rotation axis of the flow meter should be parallel to the ground.


使用特点及安装 Elliptic gear flowmeter using characteristics and installation

The elliptical gear flowmeter correctly installed in accordance with the requirements can ensure sufficient accuracy when used. Generally, the accuracy of the accumulated value can reach level 0.5, which is a more accurate flowmeter. However, if the flow rate of the measured medium is too small during use, the effect of the leakage error of the instrument will be prominent, and sufficient measurement accuracy cannot be guaranteed. Therefore, the oval gear flowmeters of different models and specifications have an allowable value for the minimum used flow rate. The measurement accuracy can be guaranteed only when the actual measured flow rate is greater than the lower limit flow rate allowable value.
Secondly, when using an elliptical gear flowmeter, pay attention to the temperature of the measured medium must not be too high, otherwise it will not only increase the measurement error, but also may cause the gear to jam. For this reason, the oval gear flowmeter is used within the operating temperature range specified by the meter. After long-term use, the gears inside the oval gear flowmeter will be corroded and worn, which will affect the measurement accuracy. Therefore, it is necessary to pay attention to observation and take it apart regularly for inspection. If conditions permit, it is better to perform calibration regularly.
Oval gear flowmeter features Flow measurement has nothing to do with the flow state of the fluid. This is because the elliptic gear flowmeter relies on the pressure head of the measured medium to push the elliptical gear to measure. The larger the viscosity of the medium, the smaller the amount of leakage from the gear and the measuring gap. Therefore, the larger the sticky skin of the test medium, the smaller the leakage error, and the more favorable it is for measurement. The elliptical gear flowmeter has high measurement accuracy and is suitable for measuring the flow of high-viscosity media, but it is not suitable for fluids containing solid particles (solid particles will seize the gear and make it impossible to measure the flow). 在安装前应清洁管道. If gas is contained in the liquid medium to be measured, it will also cause measurement errors. Elliptic gear flowmeter installation The oval gear flowmeter should be cleaned before installation. If the liquid contains solid particles, a filter must be installed upstream of the pipeline; if it contains gas, an exhaust device should be installed. The elliptical gear flowmeter does not have certain requirements for the front and rear straight pipe sections. It can be installed horizontally or vertically. During installation, the elliptical gear rotation axis of the flow meter should be parallel to the ground.