Vortex flowmeter report | Actual flow rate of vortex flowmeter | SILVER,transit time ultrasonic flow meter

『Vortex flowmeter report』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)

What are the measurement ranges of vortex flowmeters?

1、 Vortex flowmeter is a flowmeter based on the Karman vortex principle for measurement. It can measure liquids and gases, and is also very economical. The diameter is generally DN10-- DN1000. With temperature and pressure compensation, it can accurately measure gas or steam flow, and has a wide range of applications;

2、 Vortex flowmeter can only measure volumetric flow rate, usually in m3/h (cubic meters per hour), with instantaneous flow display and cumulative flow display;

3、 The measurement range corresponding to electromagnetic flow meters of different diameters is: liquid measurement: (unit: m3/h): DN15

1.2-6; DN20

1.5---10； DN25：2---16； DN32

1.8---20； DN40：2.5---25； DN50：3.5---40； DN65：7.5---70； DN80：12---130； DN100：18---160； ..... Gas measurement: (unit: m3/h): DN15:4--28; DN20：6---40； DN25：8---50； DN32：15---150； DN40：18---180； DN50：25---480； DN65：50---500； DN80：80---800； DN100：120---1200； ..... For more detailed information, please refer to the technical article on the website of Shandong Qiangqiang Automation Technology Co., Ltd.... Www.qszdh.com

2. Actual flow rate of vortex flowmeter

The flow formula measured by vortex flowmeter is qv=π D2U/4=π D2mdf/4Sr K=f/qv=[π D2md/4Sr] -1. Under specific flow conditions, a part of the fluid kinetic energy is converted into fluid vibration, and the vibration frequency and flow rate (flow rate) of the vortex flowmeter have a certain proportional relationship. A flowmeter that works based on this principle is called a fluid vibration flowmeter. At present, there are three types of fluid vibration flow meters: vortex street flow met

ers, vortex precession flow meters, and jet flow meters. Fluid vibration flowmeter has the following characteristics: 1) The output is a pulse frequency, which is proportional to the actual volumetric flow rate of the measured fluid and is not affected by fluid composition, density, pressure, or temperature; 2) The measurement range is wide, and the general range can reach 10:1 or more; 3) The accuracy is above average level; 4) No movable parts, high reliability; 5) The structure is simple and sturdy, easy to install, and has low maintenance costs; 6) Widely applicable, suitable for liquids, gases, and vapors. The working principle is to set up a vortex generator (blocking fluid) in the fluid, and generate regular vortices alternately from both sides of the vortex generator. This type of vortex is called a Karman vortex street, as shown in Figure 1. The vortices are arranged asymmetrically downstream of the vortex generator. Assuming the frequency of vortex occurrence is f, the average velocity of the measured medium flow is U, the width of the vortex generator face is d, and the diameter of the body is D. According to the principle of Karman vortex street, there is a relationship f=SrU1/d=SrU/md. The vortex generator is the main component of the detector, which is closely related to the flow characteristics (instrument coefficient, linearity, range, etc.) and resistance characteristics (pressure loss) of the instrument. It is required that: 1) the vortex can be controlled to separate synchronously in the axial direction of the vortex generator; 2) Within a wide range of Reynolds numbers, there are stable vortex separation points, and maintaining a constant branch state results in the Strouhal number; 3) Can generate st

Vortex flowmeter report | Actual flow rate of vortex flowmeter

What are the measurement ranges of vortex flowmeters?

2. Actual flow rate of vortex flowmeter

『SILVER Official Website SERVICE』