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The characteristics of elliptical gear flowmeter, and the instruction manual of elliptical gear flowmeter

Author: Release date: 2015-02-12 11:09:18 Source: Shanghai Cixi View: 118
??? Oval gear flowmeter Characteristics
The flow measurement has nothing to do with the flow state of the fluid, because the elliptical gear flowmeter is driven by the pressure head of the measured medium to drive the elliptical gear to rotate. The larger the viscosity of the medium, the smaller the leakage from the gap between gear and metering space. Therefore, the larger the viscosity of nuclear testing medium is, the smaller the leakage error is, and the stronger the measurement is. The elliptical gear flowmeter has high measurement accuracy, which is suitable for measuring the flow rate of high viscosity medium, but it is not suitable for the fluid containing solid particles (the solid particles will block the gear, so that the flow can not be measured). If there is gas in the measured liquid medium, the measurement error will also be caused. Elliptical gear flowmeter is a kind of volumetric flowmeter, which is used to measure the liquid flow or instantaneous flow in the pipeline continuously or intermittently. It is especially suitable for the flow measurement of heavy oil, polyvinyl alcohol, resin and other high viscosity media.
??? Installation of oval gear flowmeter And use attention
The pipeline of elliptical gear flowmeter should be cleaned before installation. 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. Elliptical gear flowmeter has no certain requirements for straight pipe section. It can be installed horizontally or vertically. During installation, the elliptical gear shaft of the flowmeter should be parallel to the ground.
The oval gear flowmeter installed correctly according to the requirements can ensure enough accuracy when using. Generally, the accuracies of accumulated values can reach 0.5 level, which is a relatively accurate flow meter. However, if the flow rate of the measured medium is too small, the influence of the leakage error of the instrument will be prominent, which can no longer guarantee the sufficient measurement accuracy. Therefore, there is an allowable value for the minimum flow rate of elliptical gear flowmeter with different models and specifications. Only when the actual measured flow rate is greater than the allowable value of the lower limit flow rate, the measurement accuracy can be guaranteed. Secondly, the temperature of the measured medium should not be too high when using the elliptical gear flowmeter, otherwise it will not only increase the measurement error, but also cause the gear to jam. For this purpose, the instrument uses an elliptical temperature within the specified range. After long-term use of elliptical gear flowmeter, its internal gear will be corroded and worn, which will affect the measurement accuracy. Therefore, we should always pay attention to observation, and regularly remove for inspection. If conditions permit, it is better to calibrate regularly.

The above is Shanghai Cixi on the characteristics of elliptical gear flowmeter, elliptical gear flowmeter manual introduction, hope to help you, if you still related product problems, you can dial the page of the consultation phone! The company provides 24-hour service!

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