Pay attention to three elements when purchasing a waist wheel flow meter

Abstract: When purchasing a waist wheel flowmeter, pay attention to three elements. The information is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. The structural features of the waist wheel flowmeter are as follows: there is a measuring chamber in the shell of the flowmeter, and there are one or two pairs of waist wheels that can rotate tangentially in the measuring chamber. A pair of transmission gears are installed coaxially with the two search wheels outside the flowmeter housing, and they mesh with each other to make the two. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of three elements to pay attention to when purchasing a waist wheel flowmeter. The structural features of the waist wheel flowmeter are as follows: there is a measuring chamber in the casing of the flowmeter, and there are one or two pairs of waist wheels that can rotate tangentially in the measuring chamber. A pair of transmission gears are installed coaxially with the two search wheels outside the casing of the flowmeter, and they mesh with each other so that the two waist wheels can be linked with each other. The selection of the waist wheel flowmeter should generally be considered from these four points, that is, the method of the flow sampling device and the type and specification of the measuring instrument should be determined according to the nature and flow of the fluid to be measured. conditions, consider the level of accuracy and economy, and consider the safety of measurement. 1. Determine the type and specification of the waist wheel flowmeter according to the properties and flow conditions of the measured fluid. The properties and flow conditions of the fluid determine the form and specification of the flowmeter. First of all, the selection should consider several key physical and chemical properties of the fluid: the state of the fluid (solid, gaseous or liquid state), the electrical conductivity of the fluid, the chemical corrosiveness of the fluid, and the viscosity of the fluid. Secondly, it is necessary to fully understand the application scope of various forms of flow meters. The physical and chemical properties of the fluid should be comprehensively considered in the selection. The fluid in solid state is generally dust or lumps, and there are only three types of flowmeters: impulse flowmeters, belt scales and rail scales. There are many types of flow instruments for liquid and gaseous fluids. Generally, flow instruments have series and models dedicated to gas measurement. For example, the Coriolis mass flowmeter we use has series models dedicated to gas measurement. In the case of poor liquid working conditions, it is only corroded, conductive, and with solid particles. In this case, it is best to choose an electromagnetic flowmeter. The flowmeters suitable for high viscosity mainly include oval gear flowmeters, waist wheel flowmeters, scraper flowmeters, target flowmeters, wedge flowmeters, etc., which should be determined according to accuracy, economic requirements and other actual working conditions. Finally, when selecting the fluid with corrosion, we must pay attention to the selection of the fluid contact material of the flowmeter. For example, when the electromagnetic flowmeter is used to measure hydrochloric acid liquid, the electrode must use a tantalum electrode, otherwise the electrode will be easily corroded. 2. The selection of the waist wheel flowmeter should fully consider the table conditions provided by the process. First of all, the static pressure and temperature of the medium should be considered. The static pressure and temperature resistance of the flowmeter are also an important part of ensuring the service life and accuracy of the instrument. The static pressure of the instrument is the pressure resistance degree, which should be slightly greater than the working pressure of the measured medium. , generally take 1.25 times to ensure that no leakage or accident occurs. The second is the selection of the measuring range, mainly the selection of the upper limit of the meter scale. If it is too small, it is easy to overload and damage the instrument; if it is too large, it will hinder the accuracy of the measurement. The national standard stipulates that the maximum flow rate does not exceed 95% of the full scale; the normal flow rate is 70% to 85% of the full scale; the minimum flow rate is not less than 30% of the full scale. The last important instrument condition is the process pipe diameter. Some flowmeters do not have a particularly large diameter, and some large diameter flowmeters are very expensive. At present, the flow meters that are more suitable for large diameters include flute-shaped uniform tubes, insertion vortex, insertion Type turbine, electromagnetic flowmeter, venturi tube, ultrasonic flowmeter. 3. Considering the accuracy level of the waist wheel flowmeter and the accuracy level of the economical flowmeter, it must comply with the provisions of the State Economic Commission [1983] No. 244 Document 'Requirements for the Accuracy of Energy Measuring Instruments'. Generally, the places with high precision requirements mainly include the measurement of raw materials entering the factory and the production device, the measurement of finished products from the device and the factory sales, the measurement of process formula raw materials, and the measurement of expensive substances. For the flow rate that is only used as a general reference in the production device, inexpensive flow meters such as glass rotors and metal rotors are usually used. Vortex flowmeters are usually used for gas (air, nitrogen, steam) in public works in production, and electromagnetic flowmeters are mainly used for various types of water. These two options are both economical and meet the accuracy requirements. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Pay attention to three elements when purchasing a waist wheel flow meter'

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The first machine to produce endress hauser ultrasonic flow meter, the tuning fork liquid density meter mass flow meter was invented in insertion ultrasonic flow meter in v shape coriolis mass flow meter by coriolis density meter and was subsequently improved.