Why The Use of Orifice Flowmeter Will Have A Large Deviation? How To Deal with This Problem

Orifice plate flowmeter is a commonly used flow measurement instrument, widely used in various fluid measurement fields. However, when using orifice flow meters, there may sometimes be significant deviations, which may have an adverse impact on the measurement results. This article will explore why there is a significant deviation when using orifice plate flow meters, and how to deal with this problem.

1、 The reasons for the deviation of orifice plate flowmeter

The influence of fluid characteristics: The measurement results of orifice flow meters are greatly influenced by the fluid characteristics. For example, changes in parameters such as temperature, pressure, density, and viscosity of fluids can lead to deviations in the measurement results of flow meters.

The influence of installation conditions: The installation angle of the orifice flowmeter and the length of the front and rear straight pipe sections can also affect the measurement results. If the installation conditions do not meet the requirements, such as insufficient length of the straight pipe section, it will lead to deviation in the measurement results of the flow meter.

The impact of wear and dirt: Long term use of orifice flow meters may result in deviation of measurement results due to the influence of wear or dirt on the orifice part.

The influence of calculation formulas: The measurement results of orifice flow meters need to be obtained through certain calculation formulas. If there are errors or deviations in the calculation formula, it can also lead to deviations in the final measurement results.

2、 A method to solve the deviation of orifice flowmeter

Choose the appropriate flow meter: Select the appropriate flow meter model and specifications for different fluid characteristics to ensure the accuracy of measurement results.

Ensure that the installation conditions meet the requirements: strictly follow the installation requirements of the flow meter to ensure that the straight pipe length, installation angle, and other conditions meet the requirements.

Regular maintenance and cleaning: Regularly maintain and clean the flow meter to maintain its cleanliness and avoid the influence of dirt on the measurement results.Calibration and correction: Regularly calibrate and correct the flow meter to ensure the accuracy of its measurement results. Standard measuring instruments can be used to calibrate flow meters and correct deviations.

Using multi parameter measurement: In order to reduce the impact of changes in fluid characteristics on measurement results, a multi parameter measurement method can be used to measure multiple parameters of the fluid simultaneously, in order to obtain more accurate measurement results.