Vortex street flowmeter

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Vortex flowmeter is according to the principle of Carmen (Karman vortex street) measuring the volume…

Overview of a vortex flowmeter

Vortex flowmeter is according to the principle of Carmen (Karman vortex street) measuring the volume of a gas, steam, or liquid flow rate, the volume of the standard condition or volume flow to mass flow meter.And can be used as flow transducer is applied to automatic control system.

The instrument adopts the advanced differential technology, cooperate the measures such as isolation, shielding, filtering, overcome the similar products such problems as poor vibration resistance, small signal data disorders, using a unique sensor encapsulation technology and protective measures, to ensure the reliability of the product.Products are both basic and compound type, basic measuring single traffic signal;Compound can be realized at the same time temperature, pressure, flow rate measurement.Each type has overall, fission structure, in order to adapt to different installation environment.

Second, the vortex street flowmeter features and USES

Features:

N have no moving parts, long-term stability, the structure is simple and easy to install and maintain

N the interference elimination circuit and vibration sensing head, has certain environmental vibration resistance

N the ultra-low power consumption single-chip microcomputer technology, 1 section 3.2 V10AH lithium batteries can be used more than 5 years

N by the software of the instrument coefficient nonlinear correction, improve the accuracy of measurement

N the pressure loss is small, span a wide range

N block using EEPROM to power-fail protection of cumulative flow, protection for more than 10 years

Vortex street flowmeter USES:

This instrument can be widely used in large, medium and small various water supply and drainage pipe, industrial circulation, sewage treatment, oil and chemical reagents and compressed air, saturation and superheated steam, gas and all kinds of medium flow rate measurement.

Vortex flowmeter is set in the fluid type triangular prism spiral body, from body side alternately vortex taking place with the rules of the vortex, the vortex is called the karman vortex, such as instrument automation in jiangsu, as shown in the right downstream asymmetric vortex column in spiral body is arranged.
Sets the frequency of vortex to f, average flow velocity was measured medium, incident flow of the vortex occurred body width is d, table body sizes for d, can get the following formula: