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The influence of noise on ultrasonic flow meter scale

by:Sincerity     2020-12-19
Abstract: the noise on the influence of ultrasonic flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Ultrasonic flowmeter in today's industrial production application is more and more widely, involving the industrial application of type also more and more rich, and shunda technician noticed especially gas ultrasonic flowmeter in gas pipeline has been more and more widely used in the measurement. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the impact of noise on the ultrasonic flow meter scale article details. Ultrasonic flowmeter in today's industrial production application is more and more widely, involving the industrial application of type also more and more rich, the technical personnel of noticed especially gas ultrasonic flowmeter in gas pipeline has been more and more widely used in measurement, because ultrasonic measuring principle is the use of the characteristics of the ultrasonic transmission work, in other words, the actual work is conducted using sound waves, ultrasonic flowmeter in gas production process will produce unnecessary ultrasonic noise, it will directly affect the normal operation of the ultrasonic flowmeter, for ultrasonic flowmeter accurately measuring adverse impact. About how to reduce or even eliminate noise for ultrasonic flowmeter, the influence of the concrete has the following measures can be implemented: regulating valve and noise reduction measures, regulating valve, A noise in the process of natural gas pipeline gas production, the regulator is of regulating devices used by zui. When regulator for regulating, can produce a very wide frequency range of noise, including ultrasonic frequency range of ultrasonic noise. The noise with the physical properties of sound waves from the essence, its size and the type of valve, gas flow rate and pressure regulating pressure factors, noise is generated to the regulating valve upstream and downstream transmission at the same time. But due to the effect of differential pressure of the regulating valve, gas was downstream compressed tightly in throttling mouth, make the noise of the main energy in the form of shock wave propagation to downstream, a relatively small number of upstream noise energy transmission. For ultrasonic flowmeter, the ultrasonic pulse transducer has a specific working frequency, used in the measurement of natural gas ultrasonic flowmeter its pulse frequency all above 120 KHZ. Transducer only on the working frequency of the pulse signal response, if the valve regulating the noise frequency transducer working frequency, ultrasonic flow timing and spreads through the air medium arrive, will make the transducer to detect and distinguish the pulse signals, resulting in failure of measurement. B, the operation condition of the noise control measures with the regulator design using ultrasonic flowmeter, we must give full consideration to the noise reduction measures. 1) Due to the noise of the regulating valve upstream energy is far less than to the spread of the noise energy downstream, so should first consider the regulator installed on the downstream of the ultrasonic flowmeter, the installation of as much as possible and make sure they have big distance. In short, we want full attention in the process of practice with noise case design and installation of ultrasonic flowmeter, pay close attention to the following several aspects of the problem, can effectively avoid the occurring of ultrasonic noise impact flowmeter work: 1) Install the ultrasonic flow meter, valve upstream of the regulator and keep enough distance between the two; 2) Between the ultrasonic flow meter and control valve installation tee pipe fittings such as to achieve the purpose of noise attenuation; 3) Understand the working frequency of ultrasonic flowmeter and the regulator noise frequency range, consider a higher frequency of ultrasonic flowmeter, in order to improve signal to noise ratio; 4) Preliminary design or ultrasonic flowmeter in the transformation stage, strengthen the communication design technology and instrument specialty, and early consultation is very important to the manufacturer; 5) By experiment, and draw lessons from foreign experience, should improve the refining gas pipeline industry in China as soon as possible about ultrasonic flowmeter design and installation of the relevant specification. Flow meter as a highly sophisticated equipment, not just in the process of manufacture and use need to strictly comply with its requirements, also must pay special attention to in the later maintenance can not make the flowmeter to retire ahead of schedule. If you have other questions or requirements about flow meter and flow meter manufacturer, we will serve you wholeheartedly. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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