Abstract: the scale vortex flowmeter using note information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. 1, on-site installation, electricity and flow before the check 1) Supervisor and by-pass pipe on the flange, valve, pressure hole, the thermometer hole and joint shall be no leakage phenomenon; 2) Pipeline vibration condition is in accordance with the specification; 3) Sensors installed correctly, each. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale using vortex flowmeter note article details. 1, on-site installation, electricity and flow before the check 1) Supervisor and by-pass pipe on the flange, valve, pressure hole, the thermometer hole and joint shall be no leakage phenomenon; 2) Pipeline vibration condition is in accordance with the specification; 3) The sensor installation is correct, all part of the electrical connections are in good condition. 2, static debugging in the electricity power supply is connected not flow converter should be no output, the instantaneous flow indicator is zero, the cumulative flow no change, otherwise the first checks whether because of bad signal shielding or ground, or pipe vibration strong and introduce the jamming signal. If confirmation is not the cause, the converter can be adjusted within the potentiometer, reduce the amplifier gain or improve shaping circuit trigger level, until the output is zero. 3 flow dynamic debugging, by-pass valve, open the upstream and downstream of the valve, flow stability after the converter output pulse width of continuous uniform pulse, flow indicator stability without jump, the valve opening, the output change. Otherwise should check and adjust the potentiometer until the instrument output is correct trigger and no leakage pulse. 4, instrument coefficient of correction of vortex street flowmeter calibration of meter coefficient is under laboratory conditions, the working conditions when using deviating from the laboratory conditions for instrument coefficient of correction above is all there is in this article, you are welcome to inquire me factory flowmeter selection, quotation, etc.
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Abstract: The basic principles and common types of metal tube float flow meters are provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Metal tube rotameter is mainly used for small and medium-caliber flow measurement, which can measure liquid, gas, steam, etc., and is widely used. 1. The working principle of the metal tube float flowmeter: Measure the flow according to the height of the metal tube float in the conical tube, and use the flow. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the basic principles of metal tube float flowmeters and the details of common types of articles. Metal tube rotameter is mainly used for small and medium-caliber flow measurement, which can measure liquid, gas, steam, etc., and is widely used. 1. Working principle of metal tube float flowmeter: The flow rate is measured according to the height of the metal tube float in the conical tube, and the weight of the float is balanced by the pressure difference generated when the fluid passes through the gap between the float and the tube wall. The higher the float is supported, the larger the annular gap area, that is, the annular gap area changes with the flow rate, so it is generally called the area method. It is mostly used in the measurement of medium and small flow, and there are types with electric remote transmission or gas remote transmission transmitter. 2. Classification of metal tube rotameter: (1) Classification by tapered tube material: It can be divided into transparent material tapered tube and metal tapered tube. ①Transparent conical tube metal tube float flowmeter: The transparent conical tube material includes glass tube, transparent engineering plastics such as polystyrene, polycarbonate, plexiglass, etc. Among them, the glass tube is the most used, but it is easy to break; while the engineering plastic tube is not easy to break, and some are also resistant to corrosion by corrosive media such as acid and alkali. The diameter of the transparent conical tube rotameter is 15~40mm, and the flow indexing is directly engraved on the outer wall of the conical tube, or an indexing scale is installed next to the conical tube. There are cone smooth surfaces and guide ribs (or flat surfaces) in the conical tube. ) two kinds. The float moves freely in the conical tube, or moves under the guidance of the ribs of the conical tube, and the instrument with the inner wall of the larger mouth and smooth surface is also guided by the guide rod. ②Metal conical tube float flowmeter: The diameter of the metal tube conical tube float flowmeter is 15~40mm, and the displacement of the float is transmitted to the conversion part outside the casing by means of magnetic steel coupling. Compared with the transparent conical tube rotameter. Can be used for higher media temperature and pressure, and is not easy to break. In addition, there are several other structures of the transparent rotameter. For example, the transparent straight tube rotameter is a deformation structure of the transparent conical tube rotameter, and the flow detection element is composed of an orifice plate and a conical floating plug. There are other types or variants of metal tube conical tube rotameters. Among them, the direct instruction type can directly observe and read the position of the float through the transparent straight pipe and the floating plug; the horizontal installation type can be installed in the horizontal pipe; Convenience; the floating plug orifice plate replaces the rotor conical tube with the floating plug orifice plate, and it is more convenient to change the flow specification as long as the floating plugs with different tapers are exchanged. (2) According to the function of the flowmeter: it can be divided into on-site indication, pneumatic remote signal output, electric remote signal output, alarm, etc. Transparent tube rotameters are all on-site indicating types. Sometimes a proximity switch is installed to output upper and lower limit alarm signals. The conversion part of the remote signal output type instrument converts the displacement of the float into a current or air pressure analog signal output, which is respectively a gas remote rotameter and an electric remote rotameter. (3) Classification according to the connection method with the pipeline: it can be divided into hose connection, flange connection and threaded connection. There are three connection methods for transparent tube rotameter. Among them, hose connection is often used for instruments with a diameter of 10mm or less and places with low working pressure; threaded connection is often used for instruments with a diameter of 40mm or less, which is not widely used; flange connection is used for Instruments with a diameter of 15~100mm are the most common applications. The metal tube rotameter is usually flanged, and individual models are threaded. (4) Classification according to the measured fluid: it can be divided into liquid, gas and steam. Most rotameters can measure both liquid and gas with the same instrument. Only specially designed metal tube rotameters can be used to measure steam, or additional components can be added to standard instruments, such as adding liquid damping parts with heat sinks, adding heat sinks at the connection with the indicating conversion part, etc. (5) Classification by use: it can be divided into basic type, jacket insulation type, explosion-proof type, corrosion-resistant type and blowing type. The base type is the most widely used. The jacket insulation type is used for occasions where the temperature in the pipeline is significantly higher (or lower) than the ambient temperature. When used for explosive gas or dust, the electric remote rotameter adopts explosion-proof type. At present, there are explosion-proof design structures and intrinsically safe explosion-proof design structures in China. The structural parts and floats of the corrosion-resistant rotameter in contact with the medium are made of engineering plastics such as polytetrafluoroethylene. The flow rate of the blowing type is small, the air is 20~3000L/h, the water is 0.3~100L/h,Precision is not required. The blowing type rotameter is integrated with a small self-operated differential pressure regulator, so that the flow change caused by the pressure fluctuation of the power source or the disturbance of the downstream parameter change can be adjusted by itself to maintain a constant flow. (6) Classification according to the passage of the tested fluid: it can be divided into full flow type and split flow type. The full flow type refers to the instrument in which all the fluid to be measured flows through the rotameter. The diverter type means that only part of the fluid to be measured flows through the flow detection part such as the float. The diverter type rotameter is composed of a standard orifice mounted on the main pipeline and a smaller diameter rotameter, and is used for larger flow rates with a pipe diameter greater than 50mm. and as long as the place is instructed. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Basic Principles and Common Types of Metal Tube Float Flow Meters'
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Abstract: The information of several major factors to distinguish the quality of flow meter is provided by excellent flow meter and flow meter manufacturers. Any product has a quality statement. Now that the society is progressing and the industry is developed, users have higher and higher quality requirements for products. The same is true in the flowmeter industry. The development of flowmeters is accelerating, and users have more and more needs and requirements for flowmeters. high while flowing. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of several major factors that distinguish the quality of flowmeters. Any product has a quality statement. Now that the society is progressing and the industry is developed, users have higher and higher quality requirements for products. The same is true in the flowmeter industry. The development of flowmeters is accelerating, and users have more and more needs and requirements for flowmeters. High, and there are many manufacturers of flowmeters. At this time, there is a problem of flowmeter selection and judging whether the quality of the product is good or not. The biggest problem should be judging the quality of the product. The selection problem is not too big. If you find any flowmeter manufacturer, you will help you choose the type. However, in terms of quality, manufacturers must say that their products are good, and this needs to be done from the side. The side is reflected, such as market reputation, such as user evaluation, and now the Internet is so developed, all these related information can be found online. So what are the indicators of whether a product is of good quality or not? Generally speaking, the quality of the flow meter is reflected from the following aspects. ①Accuracy flowmeter measurement must obtain a measurement result, the size of the flow, but there will be an error in this measurement. The smaller the error, the closer it is to the actual flow, the higher the accuracy of the flowmeter. The higher the accuracy, the higher the requirements for the flow meter production process. No instrument can measure the true value of the fluid being measured with 100% accuracy, it can only be said to be as close to the actual flow rate as possible. Many industrial productions now require high-precision flowmeters, so this accuracy must be considered when purchasing. As an industrial instrument, most of the flow meters are 2.5 and 4.0, but they can also achieve an accuracy of 1.5. The flowmeter has professional non-standard customization capabilities, and can customize high-precision flowmeters. ② Sensitivity What is the sensitivity, and where do you get the performance from? Generally speaking, this sensitivity refers to the sensitivity of the instrument measurement. It is usually expressed by the ratio of the change of the output of the instrument to the change of the measured parameter that causes the change. ③ Response time During the use of a flowmeter, it is necessary to truly reflect the data of the flow rate and to respond as quickly as possible. When the measured fluid parameter changes, the measured value indicated by the meter will always be ready to be expressed after a while, and the delay time of this lag is the response time. ④Zero drift and span drift refer to the percentage of the average change relative to the span after multiple measurements of the relative zero and maximum span confirmed by the instrument. ⑤ What is reproducibility? It refers to the percentage of the difference between each measured value and the average value relative to the maximum scale range when the same instrument is used to repeatedly measure a certain parameter under the same measurement conditions. This is an important indicator of the stability of instruments and meters, and generally needs to be checked when they are put into operation and during daily calibration. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Several factors to distinguish the quality of the flow meter'
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Introduction to Coriolis Flow Meters

Coriolis flow meters are widely recognized for their ability to accurately measure the mass flow rate of liquids and gases. They work on the principle of Coriolis force, which causes a twisting motion in the flow tube as the fluid passes through. This twisting motion is measured and converted into a flow measurement. Coriolis flow meters are popular in various industries, including oil and gas, chemical processing, food and beverage, and pharmaceuticals, due to their high accuracy and reliability.

Understanding the Importance of Accuracy

When it comes to flow measurement, accuracy is crucial. Inaccurate flow measurements can lead to inefficiencies, increased costs, and potential safety hazards in industrial processes. For this reason, maximizing the accuracy of Coriolis flow meters is essential. Fortunately, there are best practices that can help achieve this goal.

Optimizing Installation and Piping

The installation of a Coriolis flow meter plays a significant role in ensuring accuracy. Proper installation involves careful consideration of factors such as piping configuration, straight runs, and mounting orientation. Inadequate straight runs upstream or downstream of the flow meter can cause turbulence and affect accuracy. Additionally, mounting the flow meter in the wrong orientation can lead to errors in measurement. Therefore, it is essential to follow the manufacturer's recommendations and industry best practices when installing Coriolis flow meters.

Calibration and Verification Techniques

Calibration is critical for ensuring the accuracy of Coriolis flow meters. Regular calibration helps maintain the performance of the flow meter and detect any potential issues. Manufacturers often provide specific calibration procedures and intervals for their flow meters, and it is important to adhere to these guidelines. In addition to calibration, verification techniques such as zero verification and density calibration can further enhance the accuracy of Coriolis flow meters.

Maintenance and Troubleshooting Strategies

Proper maintenance is key to maximizing the accuracy of Coriolis flow meters. Routine inspection and cleaning of the flow meter components can prevent build-up and degradation that may affect accuracy. Additionally, understanding common issues and troubleshooting strategies is essential for addressing any deviations in measurement accuracy. This may involve monitoring for air or gas entrainment, addressing vibration or external forces, or identifying potential causes of signal noise.

Enhancing Accuracy Through Advanced Technology

Advancements in technology have led to the development of innovative features that can enhance the accuracy of Coriolis flow meters. For example, some modern flow meters are equipped with advanced signal processing capabilities that can compensate for external factors and environmental conditions. Furthermore, the integration of digital communication protocols allows for real-time monitoring and diagnostics, leading to proactive maintenance and improved accuracy.

Conclusion

Maximizing accuracy with Coriolis flow meters requires a comprehensive approach that encompasses installation best practices, calibration and verification techniques, maintenance and troubleshooting strategies, and the utilization of advanced technology. By adhering to these best practices, industries can ensure reliable and precise flow measurement, ultimately leading to improved process efficiency and cost savings. Whether in liquid or gas applications, the benefits of accurate flow measurement are invaluable, making the implementation of best practices for Coriolis flow meters a priority for many organizations.

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