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What are the differences between electromagnetic flowmeter and vortex flowmeter?
Electromagnetic flowmeter and vortex flowmeter are two commonly used flow measurement devices, with the following differences: their working principles are different: electromagnetic flowmeter uses the principle of electromagnetic induction to measure the flow rate of conductive fluid by measuring the electromotive force generated when the conductive fluid passes through an external magnetic field; The vortex flowmeter obtains the flow rate value by measuring the frequency of the vortex. Different measuring media: Electromagnetic flow meters can measure various conductive liquids, such as water, sewage, seawater, various acid-base salt solutions, various industrial liquids, etc; Vortex flow meters can measure gases such as steam and compressed air, and Borui can also measure liquids, but cannot measure conductive liquids. Different temperature requirements: Electromagnetic flow meters require that the temperature of the measured medium should not be too high, generally below 50 ℃; Vortex flowmeters do not have such strict temperature requirements, and can easily measure high-temperature gases or liquids. The structural forms are different: the electromagnetic flowmeter has two structural forms: the integrated type and the split type. The integrated type installs the converter and sensor together, while the split type installs the sensor and converter separately (with a 5M cable). I hope this information can help you understand the difference between electromagnetic flowmeters and vortex flowmeters.
2. What are the differences between vortex street and turbine flowmeter?
The difference between a vortex flowmeter an
1. Differences in working principle. Vortex flowmeter: When fluid flows through non streamlined obstacles, periodic vortices (vortex streets) will be formed behind the obstacles.
. The vortex frequency is directly proportional to the fluid velocity, and the flow rate can be calculated by measuring the frequency. The formula is: f=Kv, where f is the vortex frequency, v is the flow velocity, and K is a constant related to the shape of the object and fluid properties. Turbine flowmeter: The fluid drives the turbine to rotate, and the turbine speed is proportional to the flow rate. The flow rate is calculated by measuring the speed. The formula is: Q=KN, where Q is the flow rate, N is the rotational speed, and K is a constant related to fluid characteristics and turbine design.
2. Differential vortex flow meters suitable for resolving quality issues: liquids such as water, oil, alcohol, chemical raw materials, etc. Gases: air, oxygen, nitrogen, natural gas, coal gas, etc. Steam: saturated steam, superheated steam. Characteristics: Strong adaptability to fluid types, capable of covering multiple media. Turbine flowmeter: gases: air, nitrogen, oxygen, hydrogen, biogas, natural gas, etc. Steam: Suitable for steam flow measurement. Liquids: Clean, low viscosity liquids (such as those in the petroleum, food and beverage, and pharmaceutical industries). Characteristics: High requirements for fluid cleanliness, high viscosity may affect measurement accuracy.
III. Differences in Cost and Application Scenarios of Hebe family Vortex flowmeter: Cost: slightly higher than turbine flowmet
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