Which vortex flowmeter manufacturer is better

When many purchasers and technical friends choose vortex flowmeters, they usually look for manufacturers with very high cost-effectiveness. Then the question arises, how to choose a cost-effective vortex flowmeter manufacturer? The following is the manufacturer of vortex flowmeters Take you into the world of vortex flowmeters and uncover the mystery of vortex flowmeters. Here, I will briefly introduce you to a few points that are convenient to distinguish: 　　 The first and most important point is how to judge which vortex flowmeter manufacturer is better. Weight! I believe some friends will ask whether the quality is good or not, how does it have to do with weight? Let me explain, vortex flowmeters are generally used to measure steam billing use or compressed air metering use, in this type of working condition The vibration of the pipeline will be more obvious. Why does the vibration affect the accuracy of the flowmeter? This will explain the measurement principle of the lower vortex street: 　　 measurement principle: the triangular cylindrical vortex generator is set in the fluid, and the vortex is generated Regular vortices are alternately generated on both sides of the body. This vortex is called Karman vortex. The vortex array is arranged asymmetrically downstream of the vortex generator.　　 The vortex flowmeter is a volume flowmeter that measures the volume flow of gas, steam or liquid, the volume flow rate or the mass flow rate of the standard condition according to the Kármán Vortex Street principle (Kármán Vortex Street). It can be used as a flow transmitter in automation control systems. The vortex flowmeter uses the principle of fluid oscillation to measure the flow. When the fluid passes through the vortex flow transmitter in the pipeline, two rows of vortices proportional to the flow velocity are alternately generated up and down after the vortex generator of the triangular column. The release frequency of the vortex is proportional to the flow rate. The average velocity of the fluid flowing through the vortex generator is related to the characteristic width of the vortex generator, which can be expressed by the following formula: 　　 where: 　　 is the release frequency of the vortex, in Hz; v is the average velocity of the fluid flowing through the vortex generator, in m /s; d is the characteristic width of the vortex generator, in m; St is the Strouhal number, dimensionless, and its numerical range is 0.14-0.27.　　St is a function of the Reynolds number, 　　When the Reynolds number Re is in the range of 　　, the value of St is about 0.2. In the measurement, the Reynolds number of the fluid should be satisfied as much as possible. At this time, the vortex frequency can be calculated by measuring the vortex frequency to calculate the average velocity v of the fluid flowing through the vortex generator, and then the flow rate q can be calculated from the formula, where A It is the cross-sectional area of u200bu200bthe fluid flowing through the vortex generator.　　 It can be seen that once it is unstable and prone to vibration, then the overall measurement must be inaccurate, and more will have a small flow, or the accuracy will be relatively low. Some domestic manufacturers generally use their hands and feet on the pipe material, which makes the body unable to withstand high-strength pressure and relatively high steam. It is light in weight. Like some foreign brands, they are basically of the same caliber flowmeter. The stability is relatively better. To sum up, I believe you have seen so much, you should have already understood how to choose a vortex flowmeter manufacturer, which is the best vortex flowmeter manufacturer, you can learn about Kaidi’s my sister flowmeter and Kaidi vortex flowmeter. The quality of the forged body material used is about 1.5 times that of general domestic manufacturers with the same caliber, and the stability can replace some foreign brands.
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