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1. What are the types of mass flow meters?
2. The difference between turbine flow meters and vortex flow meters.
1. Different design principles. Turbine flow meters focus on measuring liquids and belong to the velocity type flow beam meter. The principle is to use the relationship between the rotational angular velocity of the impeller placed in the liquid and the liquid flow velocity to calculate the liquid flow rate by measuring the impeller speed.. The vortex flowmeter is designed and manufactured based on the Karman vortex principle. The principle of fluid oscillation is applied to measure flow rate. When the fluid passes through the vortex flow transmitter in the pipeline, two columns of vortices proportional to the flow velocity are alternately generated up and down behind the vortex generator in the triangular column. The release frequency of the vortices is related to the average velocity of the fluid flowing through the vortex generator and the characteristics of the vortex generator.
2、 The vortex flowmeter is mainly used for flow measurement of industrial pipeline media fluids, such as gases, liquids, vapors, and other media, with different application ranges. Turbine flow meters are widely used to measure the amount of trapped gas in various objects such as petroleum, organic liquids, inorganic liquids, liquefied gas, natural gas, coal gas, and low-temperature fluids.
3、 Different characteristics of turbine flow meters include simple structure, few processed parts, light weight, easy maintenance, high flow capacity (large flow rate that can pass through the same caliber), and adaptability to high parameters (high temperature, high pressure, and low temperature). The ch
1、 Vortex flowmeter is a flowmeter based on the Karman vortex principle for measurement. It can measure liquids and gases, and is also very economical. The diameter is generally DN10-- DN1000. With temperature and pressure compensation, it can accurately measure gas or steam flow, and has a wide range of applications;
2、 Vortex flowmeter can only measure volumetric flow rate, usually in m3/h (cubic meters per hour), with instantaneous flow display and cumulative flow display;
3、 The measurement range corresponding to electromagnetic flow meters of different diameters is: liquid measurement: (unit: m3/h): DN15
1.2-6; DN20
1.5---10； DN25：2---16； DN32
1.8---20； DN40：2.5---25； DN50：3.5---40； DN65：7.5---70； DN80：12---130； DN100：18---160； ..... Gas measurement: (unit: m3/h): DN15:4--28; DN20：6---40； DN25：8---50； DN32：15---150； DN40：18---180； DN50：25---480； DN65：50---500； DN80：80---800； DN100：120---1200； ..... For more detailed information, please refer to the technical article on the website of Shandong Qiangqiang Automation Technology Co., Ltd.... Www.qszdh. com
4. Briefly describe the working principle and characteristics of vortex flowmeter.
[Answer]: Vortex flowmeter, also known as vortex flowmeter or Ka
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