Influence of Medium Velocity on Type Selection of Mass Flow Meter

The influence of medium flow rate on the selection of mass flowmeter The mass flowmeter has high measurement accuracy, and the measurement is not affected by the physical properties of the medium, and there is no requirement for the length of the upstream and downstream straight pipe sections. Moreover, the mass flowmeter is an instrument with a high degree of intelligence. In addition to mass flow, its transmitter can output process parameters such as volume flow, density, temperature, viscosity, and concentration that are converted into 4-20mA or pulse signals or bus signals. It can also output the empty pipe detection signal converted into relay contact or NAMOUR signal; even without batch controller, it can directly control the valve in two-stage opening and closing. Therefore, mass flow meters are widely used in chemical, pharmaceutical, energy, rubber, paper, food and other industrial sectors, and are quite suitable for batching, loading and trade transfer. The mass flowmeter can be divided into single tube type and double tube type according to the number of measuring pipe sections; according to the shape of the measuring tube, it can be divided into curved and straight, and the curved measuring tube is also divided intoΩGlyph, S-shape, J-shape, triangle, etc.; according to the material of the measuring tube, there are 316L, 904L, C-22 alloy, and zirconium; according to the installation method of the flowmeter, there are thread, flange, clamp, CajonVCO, Swagelok, etc. 

According to the actual situation of the project and process parameters, select a mass flowmeter with the appropriate shape, material, nominal diameter, nominal pressure and installation method. When the mass flowmeter is working normally, the vibration of the measuring tube will cause the measuring medium in the tube to generate Coriolis force. The greater the Coriolis force, the greater the friction between the flowing medium and the measuring tube wall, and the greater the pressure loss of the flowmeter, and the magnitude of the Coriolis force is proportional to the flow velocity of the measuring medium. Therefore, the influence of the flow rate of the measurement medium should be considered when selecting the mass flowmeter. The influence of the medium flow rate on the selection of the mass flowmeter is related to the measurement principle of the mass flowmeter. Obviously, the mass flowmeter is mainly used to measure the mass flow rate of the medium or to output the calculated volume flow rate, and the selection parameters provided by the technology professional only involve the mass flow rate or volume flow rate of the medium; therefore, the influence of the medium flow rate will be ignored. The measuring tube of the mass flowmeter has a small vibration amplitude, so it can be regarded as no moving parts, and its measurement value is not affected by the flow field in the pipeline. Therefore, it can measure various non-Newtonian fluids and viscous and particle-containing slurries, and the flow range ratio can be large. However, the maximum measurement value of a mass flowmeter with a certain nominal diameter is actually limited, and the medium flow rate is a factor. We can properly select the shape and nominal diameter of the flowmeter measuring tube according to the flow rate of the medium. To sum up, when selecting a mass flowmeter, it is necessary to consider whether its pressure loss is allowed by the entire process. It is required to limit the pressure loss, which also limits the upper limit range of the medium flow rate under a certain nominal diameter. Or, under the requirement of ensuring the upper limit of medium mass flow rate or volume flow rate, choose a larger nominal diameter to expand the flow area. In addition, the nominal diameter of the flowmeter is small, the measurement accuracy is high, and the price is relatively cheap; the nominal diameter is large, although the pressure loss of the flowmeter is reduced, the measurement accuracy is reduced and the purchase cost is increased. Therefore, it is necessary to strike a balance between accuracy and pressure loss, and calculate the most suitable nominal diameter.

With technology speeding up in lighting speed, have created quite a name for itself amidst insertion ultrasonic flow meter and it happens to have a lot of benefits as well.
No, this isn't a wonder product and it won't be likely to change your life but it will give your coriolis density meter a kick and bring the extraordinary to the every day. give it a shot at Sincerity Mass Flow Meter Manufacturers.
It is one of the best products available in the market today. mass flow meter is famous product in many oversees market.