⎝⎛星力捕鱼⎞⎠

⎝⎛星力捕鱼⎞⎠ page Company Profile ⎝⎛星力捕鱼⎞⎠ Product center Quality system marketing network After sales service Recruitment contact us
Flow meter series
Temperature instrument series
Pressure instrument series
Calibration instrument series
Level instrument series
Digital display instrument series
Transmitter instrument series
Wire and cable series
Bridge instrument cabinet series
Pipe fitting valve series

Address: Xiongyi, Jinhe Road, Jinhu County, Jiangsu Province
Lunan
Phone: 0517-86900901
0517-86900921
0517-86900920
Fax: 0517-86900902
Postcode: 211600
http://zzyfwh.com
Email: chinadongxiang@163.com
Industry Information
How to use a vortex flowmeter in the field
2011-12-2 13:40:24

的工作原理 Working principle of vortex flowmeter

A vortex generator (blocking fluid) is set in the fluid, and regular vortices are alternately generated from both sides of the vortex generator. This vortex is called a Kaman vortex street (see Figure 1). The vortex array is asymmetric downstream of the vortex generator. To arrange. According to the Kaman vortex principle, there are the following relations:

In the formula, m is the ratio of the arched area on both sides of the vortex generator to the cross-sectional area of the pipe; D is the surface diameter; d is the width of the vortex generator; Velocity; Sr is the Strouhal number; U is the average velocity of the measured medium flow.

具有以下一些特点: Vortex flowmeter has the following characteristics:

① The output is a pulse frequency whose frequency is directly proportional to the actual volumetric flow of the measured fluid and is not affected by the composition, density, pressure and temperature of the fluid;

②Wide measurement range, the general range can reach more than 10: 1;

③ The accuracy is medium to upper level;

④ No moving parts, high reliability;

⑤Simple and firm structure, easy installation and low maintenance cost;

⑥ Wide range of applications, applicable to liquid, gas and steam.