Changzhou Chengfeng Flow Meter Co., Ltd., 30 years of brand, 30 years of professional, professional selection, professional quotations, summed up over 30 years of experience in production practice, and strive to develop a variety of flow measurement products, according to the needs of different customers, Different customer equipment requirements, professional custom all kinds of non-standard flow meter products, in full accordance with the parameters and requirements of customers to provide customers with "tailored", adhere to the "quality first, the user first" principle of treatment plant To ensure long-term stability and continuous improvement of product quality, to provide users with quality products and perfect services. The measurement of water flow is not difficult. Most of the flowmeters with different principles can be used to measure the flow of water, but it is certainly not a good idea to install one. The following is a brief analysis of the advantages and disadvantages of flowmeters used to measure various water flow rates. 1. The object with higher sediment content. The water flow measurement object with higher sediment content is common in raw water. If a differential flow meter with differential flow or flow differential pressure meter with average velocity is selected, the pressure-relief valve and drain valve are often blocked by sediment and affect their use. In contrast, plug-in vortex flowmeters and plug-in electromagnetic flowmeters do not have this type of situation. Large-caliber water flowmeters tend to have low flow rates. Sediment in water is easily deposited on the inner wall of the measuring tube and the flow cross-sectional area is reduced. As a result, the flow indication is high, so it should be regularly cleaned. 2. Measurement objects for process monitoring and control. The water flow meter for process monitoring and control is generally not as high in measurement accuracy as trade settlement. The main considerations are reliability, price, and type of output signal. In the old installations of industrial and mining enterprises, the most used is still the throttling differential pressure flowmeter. In new installations, people prefer to use vortex flowmeters. This is because throttling differential pressure flowmeters are complicated to install, require heavy maintenance, and have large pressure losses. Open-air installations also need to consider antifreeze and vortex flowmeters. Installation and maintenance are very simple, so throttling differential pressure flowmeters have been out of the market in water flow measurement. However, the vortex flowmeter can only solve part of the water flow measurement problem, because the larger caliber vortex flowmeter is more expensive than the same caliber electromagnetic flowmeter, and the largest caliber vortex flowmeter can only be DN300~DN400. The smallest caliber vortex flowmeter is now DN15, its minimum measurable water flow is 0.32/m3h, while the electromagnetic flowmeter caliber from DN2.5~DN3000, measurable flow from 0.0053 to 305000m3/h, thus the coverage It is much wider than a vortex street flow meter. The vortex street can only reach about 0.4 m/s at the lowest flow rate that can be measured, while the electromagnetic flow meter can measure normally at 0.1 m/s. Large-diameter electromagnetic flowmeters are also very expensive. The most economical option is to use plug-in flowmeters. Commonly used ones include constant-velocity tubes, plug-in vortex flowmeters and plug-in electromagnetic flowmeters, and plug-in vortex flowmeters. The lower limit of the flow rate is 0.32m/s, but the lower limit of the measurable flow rate of the electromagnetic flow probe is not limited, but the error is slightly larger, about (±0.2%R+1mm/s) 3. The measurement object in the vapor-liquid equilibrium state. Water in liquid phase equilibrium state, such as boiler deaerator water tank outlet water, to measure its flow, the flowmeter should be installed after the booster pump, if installed in the booster pump, because the fluid flow through the flowmeter is always There is a certain pressure loss, and the water in the vapor-liquid equilibrium state causes partial liquid vaporization due to the pressure drop, causing the flowmeter to show high values. 4. Measurement of sewage flow. Sewage is characterized by dirt, and some are also corrosive. The pipeline-conveyed sewage can be measured with an electromagnetic flow meter. The sewage discharged through the open channel is suitable for measurement with an open channel flow meter. 5. Flow measurement of deionized water. Deionized water and high-purity distilled water are highly pure water, and their electrical conductivity is about three orders of magnitude lower than that of a general-purpose electromagnetic flowmeter, so it cannot be measured with an electromagnetic flowmeter. Changzhou Chengfeng Instrument Intelligent Electromagnetic Flowmeter is developed based on the standard manufacturing system. Its advanced design concept ensures the high precision and high reliability of the product. Compared with the old electromagnetic flowmeter, it has high measurement accuracy and reliability. Strong, stable, functional, long life and other advantages. Breaking the routine, meeting more customer requirements, and tailoring all kinds of non-standard model flow meters for customers, this is a capability and an attitude. It is our attitude to allow customers to buy products that are satisfying and provide them with perfect service. Changzhou Chengfeng flow meter, a trustworthy good product. China-made brand flowmeters.
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