Application of Ultrasonic Flow Meter in Large Diameter Water Pipeline

Abstract: The application information of ultrasonic flowmeter in large-diameter water pipelines is provided by excellent flowmeter and flowmeter manufacturers. Circulating water is widely used in petrochemical enterprises as the cooling medium of coolers, and its conveying pipelines are generally larger in diameter, usually 600-1000mm, or even more than 1000mm. In the past, a variety of flowmeters have been used for measurement, such as electromagnetic flowmeters, turbine flowmeters. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the details of the application of ultrasonic flowmeters in large-diameter water pipelines. Circulating water is widely used in petrochemical enterprises as the cooling medium of coolers, and its conveying pipelines are generally larger in diameter, usually 600-1000mm, or even more than 1000mm. In the past, a variety of flowmeters have been used for measurement, such as electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, etc. However, due to the large amount of impurities in the circulating water, in practical applications, the sensor is often covered or entangled by debris, which affects normal use. As a result, accurate traffic data cannot be provided. With most enterprises' updated understanding of energy metering and increasing demand, stable and accurate metering of circulating water flow in some large-diameter or insufficient straight pipe sections has become an urgent problem to be solved. In recent years, with the continuous development and maturity of multi-channel ultrasonic flowmeter technology, ultrasonic flowmeters have the advantages of convenient installation, small maintenance, wide measurement range, and adaptability to more complex pipeline structures and flow distribution. It solves the technical problems of large-diameter circulating water flow measurement. 1. Characteristics of large-diameter circulating water pipeline measurement Because the circulating water pipeline has a large diameter and a large flow rate, a slight deviation in the operation of the instrument will bring about a large measurement error. In order to obtain accurate flow data, the following requirements need to be met during the measurement process: ① The pressure loss is small. Since the energy loss is proportional to the product of the pressure loss and the flow rate, if the pressure loss is too large, the fluid kinetic energy will be lost greatly during the long-term operation of the flowmeter, resulting in energy waste. In order to accurately measure large-diameter pipes, the pressure loss during the measurement process needs to be small enough. ②On-line maintenance can be realized. Because the installation site of large-diameter pipelines is relatively humid and difficult to maintain and maintain, it is generally difficult to arrange a bypass for the installation of flowmeters. Even if a bypass and a valve are installed, it is difficult to open and close, and it is difficult to ensure the tightness of the valve. The meter should be low maintenance and easy to service. ③Slightly affected by impurities in the medium. Because the medium in the circulating water pipeline contains many impurities, the pipeline often contains soil, oil, debris, etc., attention should be paid to the mechanical strength and the contamination, winding and covering of the measuring element caused by impurities in the water. Therefore, use a measuring instrument that has no moving mechanical parts or sensors that are not easily affected. ④Can realize online calibration. The diameter of the pipeline is large and the flow rate is also large, so there will be many troubles and difficulties when calibrating, so it can only be calibrated online during operation. 2 Problems existing in the application of other types of flowmeters Large-caliber circulating water measuring instruments are roughly as follows: ultrasonic flowmeters, electromagnetic flowmeters, vortex flowmeters, differential pressure flowmeters, etc. The main problems of various flowmeters are as follows . 2.1 Electromagnetic flowmeter The electromagnetic flowmeter uses the principle of electromagnetic induction to measure the average flow rate of the conductive liquid in the conduit, and further obtains the volume flow of the liquid. It has the advantages of small pressure loss, unaffected by the temperature, pressure and viscosity of the liquid to be measured, and can measure impurity-containing liquids. , so it is widely used in circulating water metering. But there are still some problems in practical work: ①The measurement error is affected by the external electromagnetic field. Therefore, special attention should be paid to avoid severe vibration and strong AC and DC magnetic fields during installation. ②Affected by the flow velocity distribution, in the case of the flow velocity axis symmetrical distribution, the flow signal is proportional to the average flow velocity. Due to the influence of the flow velocity distribution and the eddy current, the straight pipe section upstream of the flowmeter should have a certain length, generally 5D. ③The electrode surface is easy to be polluted. When measuring the fluid with attached sediment, the electrode surface will be polluted, which often causes zero drift. Therefore, during use, it is necessary to pay attention to the regular cleaning of the electrode. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Application of Ultrasonic Flow Meter in Large Diameter Water Pipeline'
Beijing Sincerity Automatic Equipment Co., Ltd has built its reputation on a commitment to providing quality products and services while rapidly responding to international needs for innovative products.
If you have any issues with your mass flow meter, you will have to call the experts at Sincerity Flow Meter to assist you. Any of your enquiry is warmly welcomed.
If we avoid overselling mass flow meter endress hauser ultrasonic flow meter and capabilities, you gain credibility and earn trust. We did not want to jeopardize our ingrained preference for humility.