The application of flow meter and its development trend

Abstract: the flow meter application and developing trend of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Application and development trend of flow meter flow detecting element or flow sensors ( 传感器) In addition to feelings flow, but also may feel the other variables, and thus derived from other functions, can simplify the process of detection system, reducing the number and connection pipe, instrument. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a flow meter application and developing trend of the article details. Application and development trend of flow meter flow detecting element or flow sensors ( 传感器) In addition to feelings flow, but also may feel the other variables, and thus derived from other functions, can simplify the process of detection system, reduce the amount of instrument and the connection pipeline, reduce the cost. Process pipe hole reduces potential leakage fault. Electromagnetic flowmeter, the full tube electromagnetic flow meter in the measurement of average flow velocity at the same time must also tube liquid level measurement. Forward and reverse respectively using two exciting winding concatenated, two measured under different magnetic field intensity and magnetic field distribution of the velocity signal electric potential, the ratio between the two potential relationship with liquid level height has the certain function. Vortex street flowmeter, vortex body separation vortex frequency of vortex flowmeter is proportional to the velocity. Quality of ultrasonic flowmeter, ultrasonic flowmeter is trying to spread time method ultrasonic flowmeter based on volume, in the use of ultrasonic measure the second parameter fluid acoustic impedance and density, calculus after mass flow. Mature progress meter application limits on a subject, a breakthrough in technology, adapted to develop advanced instrument, made in the field has a rapid development, the progress of several flow meter application fields are discussed below. 1, electromagnetic flowmeter, the full tube electromagnetic flowmeter, traditional electromagnetic flowmeter can measure full tube liquid flow rate, the full package electromagnetic flowmeter is applied to has the nature of free surface flow field of sewage discharge, and like in the field of precision measurement. The traditional non full pipe flow or open channel flow error from & plusmn; （ 3 ~ 5) % the FS down & plusmn; （ 1 ~ 2) %FS。 Measure more low conductivity of liquid, can now be measured is lower than the traditional electromagnetic flowmeter conductivity threshold of 2 ~ 3 orders of magnitude of the liquid, such as we haven't been able to measure the glycerin, ethylene glycol, etc. In addition, this instrument is almost nonexistent slurry flow noise and noise, also won't produce electrode surface effect form of noise. Lining the surface covering oil such as the conductive thin insulating layer or dirt will not affect the measurement. Low power consumption and two wire electromagnetic flowmeter has a rapid development, the two wire does not need additional external excitation circuit, with only 4 madc current instrument needed power, usually only tens of milliwatts. Low power electromagnetic flowmeter could use dry cell or solar cells, more easily to use electromagnetic flowmeter with no mains power supply. Two-dimensional ( Direction) Electromagnetic flow meter and measurement point more plug-in electromagnetic flowmeter, electromagnetic speed meter is placed in the outside of the ship hull plug-in electromagnetic flowmeter. Later plug-in electromagnetic flowmeter in large and medium-sized duct has a larger development, also has used in open channel, known as the electromagnetic current meter ( electromagneticcurrentmeter) 。 But in river flow or hydraulic test model should not only know the velocity measuring velocity direction. 2 d electromagnetic current meter is also called the vector, the electromagnetic flow meter can enter the hydrological test applications. Plug-in electromagnetic flowmeter also referring to the design concept of uniform tube, in the insert stem buy multiple sets of electromagnetic flow measurement unit, improve the measurement precision, the plug-in electromagnetic flow meter is in the bull by the application in a favorable position. 2, thermal mass flowmeter thermal mass flowmeter heat is mainly distributed in the past, is applied to the gas flow measurement, more applied in the semiconductor industry, heat treatment furnace, analytical instruments such as hydrogen, oxygen, ammonia and other flow measurement and control measure in the process of the valve manufacturing and leak amount, etc. Abroad in recent years, the heat dissipation effect of invasive and plug-in thermal flowmeter and process of industrial application and environmental protection of large and medium pipeline is developing rapidly. Radial section arrangement more sets of detecting element testing rod, more to insert the way applied in HVAC ( Heating ventilation and air conditioning) Large and medium-sized engineering pipeline; Also applied to boiler pipe into the air and flue emission monitoring SO2 and NOX emissions. Tiny liquid quality although thermal flowmeter has more than 20 years of history, but it was not until recent years rapid development in industry application, there are a few factories that produce a variety of models of distributed hot flow meter on the market. The current is mainly used in chemical, petrochemical, food and other process industries experimental device. For example, the ratio of liquid constant flow ratio control system, flow measurement and control of gas injection process. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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Latest technology and manufacturing equipment has improved the quality of mass flow meter.