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1. Do vortex flowmeters need to be powered? Both powered and non powered vortex flowmeters exist, depending on their functional configuration. 1. Intelligent devices that require power must have an external power supply (such as 24V DC) for smart vortex flowmeters with built-in electronic components. The core function of such devices is to convert physical flow signals into standard current signals (such as 4-20mA) or digital signals (such as RS485), thereby achieving real-time interaction with external control systems, data recorders, or industrial IoT platforms. This type of application is currently the mainstream in the market, covering scenarios such as chemical engineering and energy monitoring of combustion sources that require remote monitoring. 2. Mechanical devices that do not require electrical connection use pure mechanical structures. Basic models usually rely only on fluid force to drive internal gears or finger liquid needles, achieving instantaneous flow readings on site. For example, local monitoring points for old pipelines may adopt this solution, but due to the inability to transmit data remotely and limited functionality, the current application scope is relatively narrow, and it is more commonly used as a backup or low-cost scenario option. 2. What is an intelligent vortex flowmeter?
Also known as Karman vortex street or Karman vortex, it is a physics theory proposed by Hungarian American aerodynamicist, Feng Karman, and also the doctoral supervisor of Qian Xuesen in China.. Vortex street refers to the phenomenon of unstable boundary layer separation that occurs in a fluid containing a blocking fluid under specific conditions. Two asymmetrically arranged vortices are generate
3. The difference between intelligent vortex flowmeter and intelligent electromagnetic flowmeter
Intelligent electromagnetic flowmeter has higher accuracy, especially suitable for measuring conductive liquids. The best flowmeter for renting conductive liquids. The accuracy of intelligent vortex flowmeter is lower than that of electromagnetic flowmeter. However, its advantage is that it can measure liquids, gases, and vapors, and its measurement is not limited by the conductivity performance. Compared with vortex flowmeter, electromagnetic flowmeter has much better chemical resistance because of the electrode and lining disadvantages. The material selection and installation method of electromagnetic flowmeter can measure solid-liquid two-phase flow, which is also a major advantage. Although the accuracy of vortex flowmeter is not as high as that of electromagnetic flowmeter, it is not affected by the conductivity performance of the medium.