Types and characteristics of large-diameter pipeline flow meters

Abstract: The types and characteristics of large-diameter pipeline flowmeters are provided by excellent flowmeter and flowmeter manufacturers. When measuring the liquid flow of large-diameter pipelines, the following factors should be considered when selecting a flowmeter: the pressure loss should be as small as possible; due to the low flow rate (to reduce operating costs), dirt and sludge are easily deposited on the inner wall of the pipeline; the measurement of the flowmeter used The range is special. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the types and characteristics of large-diameter pipeline flowmeters for details. When measuring the liquid flow of large-diameter pipelines, the following factors should be considered when selecting a flowmeter: the pressure loss should be as small as possible; due to the low flow rate (to reduce operating costs), dirt and sludge are easily deposited on the inner wall of the pipeline; the measurement of the flowmeter used The range should be particularly large to adapt to the disparity of browsing in different time periods; the protection level of the flowmeter should also meet the requirements of the environment. Large-diameter pipeline liquid flow meters have the following types and characteristics. 1. Electromagnetic flowmeter Electromagnetic flowmeter is made according to Faraday's law of electromagnetic induction, and is widely used in the flow measurement of various conductive liquids in industrial processes. Features: ① There are no moving parts in the pipeline, no blocking parts, and there is almost no additional pressure loss in the measurement. ② The measurement results have nothing to do with physical parameters such as flow velocity distribution, fluid pressure, temperature, density, and viscosity. ③High measurement accuracy and large measurement range (up to 200:1). ④ The requirements for straight pipe sections are relatively low and easy to meet. ⑤ There are products with large diameter and meet the protection requirements. ⑥ The price of large-caliber products is higher, and the larger the diameter, the faster the price growth. 2. Ultrasonic flowmeter Ultrasonic flowmeter is made by using the fact that the propagation speed of sound waves in static fluids is different from that in flowing fluids. It can measure the flow of both conductive media and non-conductive media. Features: ① The probe can be installed on the outside of the pipeline (clamp type), without hindering the flow of the fluid in the pipeline to reduce pressure loss. ②The measurement accuracy is related to the diameter of the pipe. The larger the diameter of the pipe, the higher the accuracy may be obtained (using multi-sound segments). 3. Insertion flowmeter In the occasions where the measurement accuracy is not high, the insertion flowmeter can be used to measure the large flow. Because the main advantage of the insertion flowmeter is the low price (only a fraction of other structures), and the flowmeter is light in weight, low in pressure loss, and easy to install and maintain. Features: Insertion Turbine Flow Meter——The price is low, but it is only suitable for measuring the fluid of clean liquid, otherwise it is easy to cause the turbine to get stuck (it is not realistic to install a filter with a mesh number that meets the requirements on the large-diameter pipeline). Insertion Vortex Flowmeter——The dirt resistance is better than the plug-in turbine flowmeter, and the measurement accuracy is not bad, but the lower limit of the measurable flow velocity cannot be too low (when measuring the water flow, the lower limit of the flow velocity can only reach 0.3m/s), otherwise it will not be competent. Insertion Ultrasonic Flowmeter——Not affected by changes in temperature, pressure, density and conductivity; the sensor has a simple structure, no throttling, and no blockage; no shutdown and power failure during installation. Insertion Electromagnetic Flowmeter——Low cost; no moving parts, and the parts in contact with the medium are made of stainless steel, which has a long service life; easy installation and maintenance-free; one type of flow sensor can be used for various pipe diameters, which brings a lot of convenience to selection and use. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Types and Characteristics of Large Diameter Pipeline Flow Meters'

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