How do vortex flowmeter measure in low temperature environments?

Project Overview

Vortex flowmeter is a volume flowmeter developed based on the Karman vortex principle to measure gas, steam and liquid volume flow, standard volume flow or mass flow. In the flow measurement of industrial pipeline media fluids, different working conditions have different effects on the vortex flowmeter. Today we mainly discuss the impact of low temperature on vortex flowmeters and countermeasures.

The impact of low temperature on the flow meter

• The impact on the flow coefficient: When the fluid temperature changes, its density also changes, which will affect the vortex flow rate. The meter's measurements bring errors. For this situation, we can solve it through density compensation.

• Influence on the geometric dimensions of the measurement part of the flow meter: Changes in the geometric dimensions of the measurement part of the flow meter can also cause errors. Especially when the vortex flowmeter is measuring steam flow, if the temperature changes too much, it will cause a large error. Therefore, when measuring steam, temperature compensation is generally required.

Countermeasures under low-temperature conditions

Under low-temperature conditions, insulation and heat tracing measures need to be taken for the flow meter.

• Insulation materials can be used to wrap the parts of the flow meter that are prone to freezing or that are afraid of freezing. When winter comes, inspections and frequent drainage are required to prevent damage to the packaging insulation materials.

• Take heat tracing measures. Measures such as steam heating and electric heating can be selected according to the on-site working conditions.

The above is a brief discussion of vortex flowmeter measurement in low temperature environments. For more technical questions about vortex flow meters, please feel free to contact Supmea Measurement and Control~