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Industry Information
Verabar flowmeter is a plug-in flow measuring instrument for fluid flow
2012-4-16 9:45:11

是一种插入式流量测量仪表。 Verabar flowmeter is a plug-in flow measurement instrument. A Verabar sensor is inserted in the pipeline. When the fluid flows through the sensor, a high-pressure distribution area is generated in the forward flow direction of the sensor and a low-pressure distribution area is generated at the rear. The sensor has a plurality of pairs of pressure-receiving holes arranged in a certain rule in the high and low pressure regions, and generally measures the total pressure of the fluid, including the static pressure and the average velocity pressure Pl and the static pressure P2. Introduce P1 and P2 to the differential pressure transmitter respectively, and measure the differential pressure △ P = P1-P2. △ P reflects the average velocity of the fluid, so that the flow rate of the fluid can be calculated. Verabar flowmeters belong to the category of differential pressure averaging tube flowmeters. They all measure the flow rate of the fluid through the differential pressure before and after the fluid passes through the flow meter. Therefore, you need to know a few parameters when choosing an order flowmeter: The diameter of the pipeline 2, the nature of the fluid 3, the pressure of the fluid in the process pipeline 4, the temperature of the fluid in the process pipeline 5, the flow of the fluid 6, the status of the process site


的概念:当流体流过探头时,在其前部产生一个高压分布区,高压分布区的压力略高于管道的静压。 About the concept of Verabar flowmeter : When the fluid flows through the probe, a high pressure distribution area is generated in the front of the probe. The pressure in the high pressure distribution area is slightly higher than the static pressure of the pipeline. According to the principle of Bernoulli's equation, when the fluid flows through the probe, the speed increases, and a low-pressure distribution area is generated at the rear of the probe. The pressure in the low-pressure distribution area is slightly lower than the static pressure of the pipeline. After the fluid flows through the probe, a partial vacuum is created at the back of the probe, and vortices appear on both sides of the probe. The cross-sectional shape of the average velocity flow probe, the surface roughness, and the location of the low pressure pressure taking hole are the key factors that determine the performance of the probe. The stability and accuracy of the low-voltage signal play a decisive role in the accuracy and performance of the average speed probe. Verabar's average velocity flow probe can accurately detect the average differential pressure produced by the average velocity of the fluid. The Verabar average velocity flow probe has multiple pairs of pressure taking holes arranged according to certain criteria in the high and low pressure areas, making it possible to accurately measure the average flow velocity.

测量原理:威力巴流量计是一种插入式流量测量仪表。 Verabar flowmeter measurement principle: Verabar flowmeter is a plug-in flow measurement instrument. A Verabar sensor is inserted into the pipe. When the fluid flows through the sensor, a high-pressure distribution area is generated in the front direction of the flow, and a low-pressure distribution area is generated at the rear. The sensor has a plurality of pairs of pressure-receiving holes arranged in a certain rule in the high and low pressure regions, and generally measures the total pressure of the fluid, including the static pressure and the average velocity pressure Pl and the static pressure P2. Introduce P1 and P2 into the differential pressure transmitter, and measure the differential pressure △ P = P1-P2. △ P reflects the average velocity of the fluid, so that the flow rate of the fluid can be calculated.