What effect does water hammer have on a turbine flow meter?

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The impact of water hammer on turbine flowmeters is mainly reflected in the following aspects:

1. Physical damage: The water hammer effect will cause the pressure in the pipeline to rise sharply. This sudden change in pressure can damage the turbine flow meter. The sudden stop or direction change of the high-speed flowing liquid will cause serious damage to the precision components inside, especially the impeller, which may cause the impeller to deform, break or become stuck, thus seriously affecting the accuracy and service life of the flow meter.

   

2. Reduced accuracy: Even if water hammer does not directly cause physical damage, repeated pressure fluctuations may cause changes in the mechanical structure of the flow meter, affecting the smooth rotation of the impeller, thereby reducing measurement accuracy. Accuracy. The readings of turbine flow meters that have been affected by water hammer for a long time may become unstable or deviate.

3. Control system failure: Water hammer may also affect the flow meter. Interference or damage to electronic control systems, such as pressure sensors and signal transmission lines, may cause false flow readings or system failure alarms.

   

4. Increased maintenance costs: Frequent water hammer. Incidents will increase the maintenance frequency and repair costs of turbine flow meters, including replacement of damaged parts and calibration work, affecting production efficiency and operating costs.

In order to avoid water hammer on the turbine. The following precautions are usually taken to prevent the impact of flow meters:

• When opening and closing the valve, the valve should be opened and closed as smoothly as possible. It is recommended to use the "two-stage opening, two-stage closing" method to control the fluid flow to reduce sudden changes in flow rate.

• Install equipment such as water hammer absorbers or pressure reducing valves to absorb and mitigate the transient high pressure caused by water hammer effects.

  

• Consider installing appropriate cavities when designing piping systems. Protection and pressure relief devices.

• Strengthen operational training to ensure that operators understand the conditions and preventive measures for water hammer.

< p>In summary, water hammer is a key issue that needs to be paid attention to when using turbine flowmeters. Reasonable prevention and control measures are essential to protect the flowmeter, maintain measurement accuracy and ensure safe production.