Online Application of Ultrasonic Flow Meter

Abstract: The online application information of ultrasonic flowmeters is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. As ultrasound waves propagate through a flowing fluid, they carry information on the fluid velocity. Therefore, the flow rate of the fluid can be detected by the received ultrasonic waves, and then converted into a flow rate. According to the detection method, it can be divided into propagation velocity difference method, Doppler method, and beam. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the online application article of ultrasonic flowmeters. As ultrasound waves propagate through a flowing fluid, they carry information on the fluid velocity. Therefore, the flow rate of the fluid can be detected by the received ultrasonic waves, and then converted into a flow rate. According to the detection method, it can be divided into different types of ultrasonic flowmeters such as propagation velocity difference method, Doppler method, beam shifting method, noise method and correlation method. Ultrasonic flowmeter is a kind of non-contact instrument that has only been used in the past ten years with the rapid development of integrated circuit technology. It can be linked with a water level gauge to measure the flow of open water. The use of ultrasonic flowmeter does not need to install measuring elements in the fluid, so it will not change the flow state of the fluid, and no additional resistance will be generated. The installation and maintenance of the instrument will not affect the operation of the production pipeline, so it is an ideal energy-saving flowmeter. 1. Current situation of the problem A few days ago, there was a heating process pipe section in my office. The V-cone flowmeter was used to measure the flow of the supply and return water. During the operation, it was found that when the daily flow was 1000T/h, the instantaneous deviation of the supply and return water could reach 200~300T/h h, which means that the daily water loss reaches 7200T, which is unacceptable for any operating unit. There is a big difference between the supply and demand sides in the accuracy of the meter, but due to the operation period, it is impossible to dismantle the flowmeter for calibration. In order to solve this problem, we designed a scheme for online comparison of dual ultrasonic flowmeters. Through actual operation and data acquisition and analysis, it provided a scientific basis for the subsequent processing of both parties. Figure 1 shows the measurement process system diagram of this section of the pipeline. The system uses the enthalpy difference method to measure the heat supply. The V-cone flowmeter and the temperature probe on the water supply pipeline are used to form a water supply enthalpy measurement unit. The measured data enters The heat totalizer uses the V-cone flowmeter on the return water pipeline and the temperature probe to form a return water enthalpy measurement unit. The measured data enters the heat totalizer, and the heat totalizer calculates the supply and return water through timed sampling. The enthalpy difference is used to calculate the heat consumed by the heated end. Figure 1 Structure diagram of the metering system In the actual metering process, the flow measured by the supply and return water flow meters will have deviations, that is, the system loses water. If this water loss is within the normal range, it is reasonable, and it will not affect the metering. However, if the deviation of the real-time flow value of supply and return water is large, it will not only affect the normal measurement of the instrument, but also reflect the excessive water loss during system operation. In trade measurement, this is the focus of disagreement between the supplier and the receiver. Figure 2 Dual ultrasonic flowmeter measurement Figure 2. Dual ultrasonic online measurement In order to solve the above problems and eliminate the doubts of the two sides about the meter, we designed a dual ultrasonic online measurement and comparison scheme. The measurement method is shown in Figure 2. When selecting the position of the ultrasonic flowmeter, it should be noted that it should be selected on the upstream side of the V-cone flowmeter, which not only ensures that there are enough straight pipe sections, the development of the flow rate is relatively sufficient, and will not be disturbed by the downstream temperature sensor. Because the change of flow velocity on the downstream side is relatively large, it is not conducive to the detection of ultrasonic flowmeter. Based on the above considerations, we chose to test at the stable flow stage around 2:00 pm. For the accuracy of data recording, we used two cameras to shoot the data display screen at the same time, and finally summarized the recording method to avoid the data recording process. Deviation occurs. We have collected some valid data through measurement, see Table 1 and Table 1 for details: The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Online Application of Ultrasonic Flow Meter'

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