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Industry Information
Verabar flowmeter average velocity flow probe compared with traditional flow throttling device
2012-4-16 8:53:18

安装注意事项:1、测量液体:威力巴流量计在管道下方160°范围内安装;安装气体,威力巴在管道上方160°范围内安装;测量蒸汽:威力巴安装在管道下方;对垂直管道,可以在围绕垂直管道360°的任何方位安装威力巴,根据管径和介质情况选择单面或双面支撑。 Verabar flowmeter installation precautions: 1. Measure liquid: Verabar flowmeter is installed within 160 ° below the pipeline; install gas, Verabar is installed within 160 ° above the pipeline; measure steam: Verabar is installed below the pipeline; For vertical pipes, you can install Verabar in any orientation around 360 ° of the vertical pipe, and choose single or double-sided support according to the pipe diameter and the medium. 2. When the upstream and downstream straight pipe sections are not long enough, install a Verabar flowmeter 2 times the pipe diameter after the pipe bend. 3. To facilitate cleaning and maintenance of the flowmeter in the future, a bypass pipe should be installed. 4. If there is vibration in the measuring pipe, there should be fixed supports on both sides of the flow meter. 5. The pressure of the pipeline where the flow meter is installed must not exceed the rated maximum working pressure. 6. When the impulse tube leaks, smaller particles in the high pressure balance area of the probe may enter the pressure taking hole. When the pipeline is stopped, small particles may enter the pressure taking tube due to the Brownian motion of the molecule. Clean the probes regularly. 7. Regularly check whether the body of Verabar is bent, deformed, and whether the valve and connection flanges, joints are leaking or blocked. Use iron wire to clear the pressure-receiving pipeline and replace the flange gasket. 8. When measuring gas and steam, the measurement accuracy will be affected by temperature and pressure changes, so compensation should be considered. 9. Each Verabar probe needs to be analyzed for differential pressure, pressure, and structural strength according to fluid conditions before use, and to determine the range of the differential pressure transmitter based on the calculated differential pressure.

实际使用中参数核定问题:利用差压原理进行流量测量是当今世界上使用最广泛、最可靠的流量测量方式,随着科学技术的发展和流量测量技术的进步,一些新型、高性能的测量传感装置逐步取代了传统的节流装置进行流量测量,由美国VERIS公司推出的全新均速流量探头——威力巴便是其中之一。 Verification of parameters in actual use of Verabar flowmeters : Flow measurement using differential pressure principle is the most widely used and most reliable flow measurement method in the world today. With the development of science and technology and the advancement of flow measurement technology, some new, The performance measurement sensor gradually replaced the traditional throttling device for flow measurement, and the new average speed flow probe, Verabar, introduced by the American VERIS company, is one of them. In the past few decades, there has been no major breakthrough in the level of source detection, which has become a bottleneck restricting the development of differential pressure flow measurement systems, making high-level downstream instruments unable to exert their high efficiency. The emergence of Verabar precisely overcomes this shortcoming, making the measurement accuracy, repeatability and reliability of the primary source reach a new height. From the perspective of use, Verabar ’s average velocity flow probe has more advantages than traditional flow throttling devices, which are specifically manifested in the following aspects: High accuracy, large range ratio, greater than 10: 1; using non-constricting joints The flow design can reduce the permanent pressure loss of the orifice by at least 95%. It is easy to install, just need to weld a base after opening a small hole in the pipeline, there is no need to cut off the pipeline, some media can be installed online, and the probe can be removed and inspected at any time , Low installation cost, basically maintenance-free; because the Verabar connector can be directly connected to the transmitter, no need for three sets of valves and impulse tubes, to avoid measurement errors due to impulse tube leakage, blockage, etc .; can measure gas, Various media such as liquid and vapor have a wide range of applications, and the measurement signal is stable and the fluctuation is small.

的设计、制造先进,但其测量系统对被测介质有关参数的准确性要求也非常高,在这一点上威力巴流量计比其它流量测量系统的要求严格得多。 The design and manufacture of Verabar flowmeters are advanced, but its measurement system requires very high accuracy of the relevant parameters of the measured medium. At this point Verabar flowmeters have much stricter requirements than other flow measurement systems.