Why does the vortex flowmeter have abnormal negative pressure?

A vortex flowmeter is a common device used to measure liquid or gas flow. In practical applications, it is sometimes found that the negative pressure of the vortex flowmeter has abnormal problems. Let's analyze the causes of this problem and how to solve it.

Vortex flowmeter negative pressure is defined as the state where the internal pressure of the flowmeter is lower than the ambient air pressure. Under normal circumstances, the vortex flowmeter should work under positive pressure. If negative pressure occurs, it may affect the rotation of the turbine, produce oscillation and interference, causing the flow meter to measure inaccurately or not work properly. Therefore, we need to eliminate or solve this abnormal problem.

There are many reasons for negative pressure in vortex flowmeters, such as pipe blockage, unreasonable design of pipes before and after the flowmeter, and irregular installation. If the pipe is blocked, you can use cleaning equipment to clean it. If the pipeline design is unreasonable, you can try to redesign the pipeline layout. If it is an installation problem, before installation, you need to determine the installation direction, distance, sampling point and other parameters of the flow meter, and install it strictly in accordance with the requirements.

When solving the problem of abnormal negative pressure of the vortex flowmeter, we also need to consider the impact of negative pressure on the measurement of the flowmeter. Under normal circumstances, the measurement range of the vortex flowmeter is positive pressure. If negative pressure occurs, the flowmeter measurement may be inaccurate. At this time, corresponding adjustments and treatments need to be made according to the specific situation, such as replacing a suitable flowmeter or re-installing it. Design associated piping systems.

In short, when the vortex flowmeter encounters abnormal negative pressure problems, the problem needs to be analyzed and solved in time. At the same time, you also need to pay attention to the detection and maintenance of the equipment in daily use to prevent problems from occurring.