The application of electromagnetic flow meter scale in petrochemical industry

Abstract: the electromagnetic flow meter scale applications in petrochemical industry information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Abstract: this paper introduces the working principle of electromagnetic flowmeter and application in petrochemical industry. Along with the rapid development of computer technology, oil chemical instrumentation control system also gradually to digital, networked, modeling, intelligent direction. Petrochemical enterprises. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the electromagnetic flowmeter scale applications in petrochemical industry article details. This paper introduces the working principle of electromagnetic flowmeter and application in petrochemical industry. Along with the rapid development of computer technology, oil chemical instrumentation control system also gradually to digital, networked, modeling, intelligent direction. Petrochemical enterprises in the existing information system on the basis of development, deepening enterprise integrated automation system, strengthen the application of safety control system, improve the level of enterprise advanced automation and control, in order to enhance market competitiveness of the enterprise. The application of new type of automatic detection and analyzer: instrument system at home and abroad to digital, intelligent, network, the development of miniaturization, the petrochemical enterprises to improve the application level of the automatic detecting instrument. To meet the requirements for field bus control system, and the total linear transducer obtained rapid development. The transmitter is full digital, the structure is simple, resolution and stability are higher than that of general intelligent transmitter. Due to the fieldbus digital instrument product improvement, and has high reliability, interoperability, Can integrate different brand product configuration) Wait for a characteristic, will get more applications in the field of petrochemical process control. The development of commercial trade, both at home and abroad for higher measurement accuracy, goods delivery of petrochemical factory of mass flowmeter metering application accuracy for & plusmn; 0. 1% or higher. Petrochemical enterprises to strengthen product quality management, also promoted the application of on-line analysis instrument. It will directly affect the petrochemical enterprise product quality, and the application of advanced control level, thus obtained the petrochemical system, actively promote, mainly including online oil quality analyzer, online gas phase or liquid phase chromatography and other physical properties analyzer etc. Zui new online multiplex near-infrared ( NIR） Spectrum analyzer refining blending system has been applied in petrochemical enterprises and achieved good results. A new generation of laboratory rapid low cost of gasoline quality index tester has been successfully applied to the hangzhou refinery units, such as by the user's praise. Soft measurement technology development also soon, is mainly used for section analysis of petrochemical enterprises detection problem. Due to the environmental protection request more and more high, environmental protection instrument application also increased, such as online flue gas analysis, comprehensive water quality analyzer, on-line COD analyzers, DO analyzer and PH analyzer, etc. At present, petrochemical enterprise online analytical instrument is a big demand, compared with foreign products, domestic online analytical instrument there is a certain gap. Now use most of the online analytical instrument is imported products. Petrochemical maintenance work pay more and more attention to the factory, especially more interested in predicting maintenance problems. Some companies are required to provide online online and real-time sensor system, used to monitor heat exchanger and the efficiency of heating furnace, vibration and corrosion, and evaluation & other; Health & throughout; Status indicator. Using diagnostic and predictive maintenance ability of instrument and system, can make the production potential of existing equipment increased by 1% ~ 3%, and at the same time unplanned maintenance cost can be reduced by 10% ~ 30%. Electromagnetic flow meter according to the scene of the meet at the same time, also can output 4 ~ 20 ma current signal for records, adjust and control, has been widely used in chemical industry, environmental protection, metallurgy, medicine, paper making, water supply and drainage and other industrial technology and management. On the principle of electromagnetic induction measuring dielectric fluid velocity of electromagnetic flowmeter. It on both sides of the pipe and a magnetic field, the measured medium flows through the pipe cutting lines, the induced potential on two detection electrodes, its size is proportional to the velocity of the fluid. The characteristics of the electromagnetic flowmeter is no moving parts and components in the bulge on fluid, has the very high reliability, can be used to measure the acid, alkali, salt solution, slurry, pulp, mortar plaster, pulp, resin, rubber, synthetic fiber pulp and emulsion all sorts of suspended solids, such as steam gasification and the flow of viscous material. Electromagnetic flowmeter sealed performance is good, can also be used in tap water and sewage systems. And measurement process is not in contact with the fluid, and is suitable for pharmaceutical, biological, chemical and food industry. This meter can also detect the blood flow. Its range than about 100:1, the precision is generally 1%, high precision electromagnetic flowmeter can reach 0. 1% ( Mean square error (mse) 。 Due to the sensors must be kept in pipe has certain proportion relationship between internal resistance and impedance measurement circuit, thus has certain difficulty in manufacturing. When the electrical conductivity of measured medium is about 10 ohm & middot; Difficult centimeters when begin, lower conductivity occurs when the original rational difficult. When the conductivity of 10 ohm & middot; Cm, reached between the conductive medium and dielectric & other; Line & throughout; Heat and noise level significantly increased with the increase of internal resistance.

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