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Description and description of the classification and name of the electromagnetic flowmeter

Classification and name of electromagnetic flowmeter
1. Electromagnetic flowmeter: From the perspective of the electromagnetic flowmeter itself, the electromagnetic flowmeter is a mature product. With the development of technology in recent years, on the one hand, the electromagnetic flowmeter transmitter is intelligent, and the inverter has added functions such as self-diagnosis and self-calibration. Thereby, some online self-diagnosis functions are realized, the maintenance workload of the electromagnetic flowmeter is reduced, and the traditional offline inspection method is replaced by the online inspection. Both Krohne and ABB are promoting this concept of online self-diagnosis. The online inspection method of electromagnetic flowmeter is becoming more and more mature from birth to application, but it will take some time to promote it in various industries across the country. The biggest difficulty lies in the electromagnetic flowmeter as a measuring instrument, and its online inspection specification needs to be recognized by the national technical supervision department and relevant industry associations. At present, the domestic electromagnetic flowmeter technology is mainly represented by Yokogawa manufacturers. The technology of domestic manufacturers is generally derived from Yokogawa's technology. Krohne low-frequency rectangular wave excitation type electromagnetic flowmeter is mainly a large-diameter product, which is widely used in the water industry. Yokogawa's dual-frequency excitation technology, especially for small-diameter products below 100mm, has a high share in the paper industry.
In 2008, the overall market size of electromagnetic flowmeters was 730 million. The top three YOKOGAWA accounted for 45% of the market. Chuanyi and Kaiyi and ABB were the representatives of the second echelon. Although the performance was less than 10%, it grew rapidly. Other market shares are less than 5%, but the growth rate of Siemens in the process industry in recent years is not to be seen.
2. Vortex flowmeter: The biggest problem in the development of vortex flowmeter technology is how to resist the noise and vibration problems in actual production. Vortex flowmeters are still developing flowmeters, regardless of their theoretical basis or practical experience. In the next few years, as the technology of vortex flowmeters continues to mature, the acceptance level and technical level of users will gradually increase, and the vortex flowmeter will gradually be maturely applied.
Due to the early entry into the Chinese market, Yokogawa has more application cases in the urban heating industry, and the acceptance of users is relatively high. E+H and Emerson have seen rapid growth in the vortex flowmeter market in recent years. The rise of the local vortex flowmeter production plant is rapid, but the product quality problem needs to be improved. If you want to break through the bottleneck of the market, you still need to start from research and development of high-end products and improve your research and development strength.
3. Mass flow meter: Unlike electromagnetic and vortex flowmeters, the mass flowmeter technology has a higher threshold. The biggest obstacle to the development of mass flow meters is the price issue. In the decades since the development of mass wanderers, local suppliers have not yet mastered the high-end mass flowmeter production technology. Therefore, the price of mass flow meters is high, except that it is widely used in the petroleum and petrochemical industry, and it is less used in other industries due to price restrictions. At present, the mainstream mainstream mass flowmeter suppliers in foreign countries have also seen such market demand, and have begun to promote low-end mass flowmeter products in the market. From the perspective of mass flowmeter technology, the mass flowmeter has a larger and larger diameter and can be used on various large diameter pipes. The undisputed leader in the mass flow meter market is YOKOGAWA, EMERSONMICROMOTION. Although other manufacturers have their own mass flow meters, the market sales are far less than YOKOGAWA's myths created by YOKOGAWA, both in technology and in the market. However, in recent years, these companies have stepped up the promotion of mass flow meters, and a single situation may change in the future.
The development of mass flowmeters in China has not stopped. However, due to some restrictions of the state-owned system, the flow of forms has overshadowed the essence of technology. On the other hand, mass flowmeter technology is indeed more difficult than electromagnetic and vortex streets. The mass flow meter has not been developed, and the only two are currently at the tens of millions. Its application is still not in the mainstream market.

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