Influence factor on vortex flowmeters:
1, the fluid temperature changes on the flow coefficient of the vortex flow meter causes, the fluid temperature changes, the corresponding change in density, and thus differential pressure flowmeter and speed flowmeter mass flow measurement error, can be Density compensation to solve. In addition to this, changes in the temperature of the fluid also cause changes in the geometry of the measuring part of the flowmeter and therefore cause errors.
2. The flow coefficient is influenced by the temperature of the fluid and consists of two parts: the change in the width of the generated body and the change in the internal diameter of the pipe. Why do you say so? The Karman vortex street frequency is inversely proportional to the occurrence of the body. When the fluid temperature rises, the body increases, and the frequency inversely decreases, so the indication value is low; the flow coefficient is inversely proportional to the inner diameter of the pipe, and the fluid temperature increases. As the inner diameter of the pipe increases, the flow cross-sectional area on both sides of the generating body increases, the flow coefficient decreases accordingly, and the flow rate indication is low.

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