Comparison of domestic and foreign flow meters

Abstract: The comparison information of flow meters at home and abroad is provided by excellent manufacturers of flow meters and flow meters. Due to different on-site processes and many influencing factors, there are more than 10 types of instrument principles and no less than 200 types. In the industrial automation system, although the quantity only accounts for 1/5 of the system automation instruments, the price accounts for about 1/3; in the scientific evaluation of energy saving, consumption reduction and pollution. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following is the details of the comparison articles of domestic and foreign flowmeters. Due to different on-site processes and many influencing factors, there are more than 10 types of instrument principles and no less than 200 types. In the industrial automation system, although the quantity only accounts for 1/5 of the system automation instruments, the price accounts for about 1/3; it accounts for more than half of the monitoring instruments in the scientific evaluation of energy saving, consumption reduction and pollution emission. Therefore, it has an important position in the national economy. 1. Market assessment 1. Foreign market According to the online survey of Flowresearch, in the past 5 years, the international economy is generally not very prosperous. USD 3.1 billion increased to USD 3.5 billion in 2007, of which traditional instruments (throttle, volume, turbine, rotameter, etc.) had a negative growth and a CAGR of -2.2%, from USD 1.643 billion in 2002 (accounting for 53% of the total ) fell to US$1.505 billion in 2007 (43%); and the annual growth rate of new instruments (electromagnetic, ultrasonic, Coriolis flowmeter, etc.) averaged 6.2%, from US$1.457 billion in 2002 to 20.19 in 2007 One hundred million U.S. dollars. The CAGR of electromagnetic flowmeters is less than 2%, because the base is already large and the technology is relatively mature. The survey believes that turbine flowmeters are often used in many countries in the world to measure gases or liquids with low viscosity. Due to the rotating parts in the instrument and the heavy maintenance workload, the CAGR in the past five years is -3.2%, and the sales volume has increased from 2002. $410 million fell to $348 million in 2007. Experts believe that although the growth momentum of ultrasound has been aggressive in recent years, the turbine is much cheaper than ultrasound and has a price advantage; compared with the throttling device, the range ratio can reach 10:1, and it is more accurate. In terms of trade settlement, it is still small and medium. Customers are happy to choose. The volumetric flow meter is a non-velocity meter, and there is no requirement for straight pipe sections to be installed, and the accuracy can generally reach±0.5%, but bulkier. The diameter is generally less than 0.2m. In the past 5 years, sales fell from $520 million in 2002 to $452 million in 2007, with a CAGR of -2.7%. Experts believe that it is a general development trend that new instruments will replace traditional instruments in many fields, but the process will be long. Please visit: Power Transmission and Distribution Equipment Network for more information 2. Domestic market According to statistics, in 2005, in the domestic automation instrument market, the annual sales of flow meters were 2.3 billion yuan; pressure transmitters were about 1.8 billion yuan (of which about 5 The differential pressure transmitter of about 100 million yuan is matched with the differential pressure flowmeter); the temperature instrument is 1.2 billion yuan; the level and liquid level instrument is 1 billion yuan. From the perspective of the type of flow meter, due to the relatively cumbersome throttling device and relatively low technical content, foreign manufacturers have basically not set foot in the Chinese market for such products. The selection of such meters in my country's projects is also mainly based on domestic products. No less than 200,000 units, about 600 million yuan or more. There is a big gap between my country's research and development of flow instruments and foreign countries, and most of them are satisfied with imitation. This problem can be seen from the well-known instrument exhibition MICONEX2006. Participating in this exhibition, Chinese and foreign manufacturers exhibited a total of 297 flow meters with more than 10 principles. Among the 16 categories, 204 manufacturers exhibited the first 6 exhibits, accounting for 69% of the total, indicating that they are the current Chinese and foreign manufacturers. Among the hot spots that instrument manufacturers are concerned about, among them, Coriolis flowmeters, 17 foreign exhibitors accounted for 68% of the total, and only 8 domestic ones. Does it mean that domestic attention is not enough for such instruments that accurately measure mass flow? And the inner cone flow rate In total, there are 30 domestic exhibitors, accounting for 91% of the total; only 3 foreign exhibitors. Is the domestic market overheated?•Electromagnetic flowmeters are still the hot spot in flow meters, ranking first. my country's major instrument factories have listed it as the main product, including Dalian Ruckus Instrument. According to the assessment of the American ARC consulting company, China has paid special attention to environmental protection in recent years, relying on the rapid development of water supply/sewage, metallurgy, mining, pulp, and pharmaceutical industries. In the next five years, the CAGR of electromagnetic flowmeters in my country will reach 10.7%. 380 million in 2003 increased to 640 million in 2008.•Ultrasound has many advantages, including accuracy, small pressure loss, and is especially suitable for trade measurement of precious fluids. It is paid more attention at home and abroad, but most of the domestic exhibits are for measuring liquids, although there are also a few for measuring gases. There are still some problems for trade settlement.•There are also many thermoelectric exhibits. Because it can measure mass flow and has high sensitivity, it is valued by the industry. However, its plug-in form can only measure dry and pure gas, and the accuracy is not as high as the manufacturers advertise. , it will take time to be practical. Second, the development trend 1. The structure is becoming more and more simple and portable. The early flow instruments are purely mechanical on-site display, such as volumetric flow meters.

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