How to obtain the application accuracy of the turbine flowmeter
Turbine flowmeter has the characteristics of high sensitivity, good repeatability, large measuring range ratio and high accuracy. It is suitable for the measurement of weak corrosion cleaning heat flow. With the popularization of gas in industrial production and environmental protection in our country, gas has long become a key gas in daily life and industrial production. Turbine flowmeter, as a key trade measurement and verification machine and equipment for pipeline gas, has started to have strict regulations on its measurement verification accuracy. Let's talk about how to improve the measurement error of the turbine flowmeter.
The substantial reason for the large error of the turbine flowmeter is that the centrifugal impeller in the turbine flowmeter is movable, the actual operation is unreasonable, and it is very easy to be destroyed. The core component of the rolling bearing is destroyed, the stain resistance is low, and the material cleaning standard is high. Calibration must be carried out after continuous operation.
The incentives are unscientific selection, such as small specifications and medium total flow; the material is dirty and the hinge is very easy to jam; the installation aspect ratio does not meet the flowmeter standard; such as diameter change; elbow; or electromagnetic interference. Turbine flowmeters have consistency in long-term work, and turbine flowmeters are not suitable for places where the total flow fluctuates frequently.
During operation, first open the gate valve in front of the flowmeter, and then open the gate valves on both sides of the flowmeter. The operation should be maintained under the working pressure. Carefully observe the error characteristic diagram of the turbine flowmeter. In order to achieve a better actual measurement effect, the work content should be in the middle of 20-80% of the design process. If the actual operation exceeds the long-term performance or the step regulations, it will be available anytime and anywhere. Reduce the inspection accuracy of the flowmeter. Before the turbine flowmeter, clean the filter to ensure that the used filter is unobstructed (can be distinguished according to the pressure difference between the front and rear of the filter), and clean the filter on time.
The takeover section is an important main parameter to ensure the stability of the flowmeter sales market. After installation, ensure that there are sufficient pipe sections around the flowmeter. Turbine flowmeters have the ability to use regulator tubes and compensation when measuring expensive steam. The flowmeter should pay more attention to the matching standard temperature and working pressure. The total flow is 20 degrees, and ultimately 0 degrees. Turbine flowmeter has gone through many years of development trend, and its technology is relatively sound, which prevents installation and application. Needless to say, it basically achieves ideal measurement results.