Gas flow meter selection recommendation

Abstract: The recommended information for gas flow meter selection is provided by the excellent flow meter and flow meter production and quotation manufacturers. The recommended order of gas metering selection is as follows: 1. Select V-shaped cone flowmeter 2. Select standard orifice flowmeter 1. Select V-shaped cone flowmeter Advantages: V-shaped cone flowmeter suspended in the center of the pipeline has a unique V-shaped cone. 'Rectification' function. The action of the fluid in the throttling element. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the details of the recommended articles for gas flowmeter selection. The recommended order of gas metering selection is as follows: 1. Select V-shaped cone flowmeter 2. Select standard orifice flowmeter 1. Select V-shaped cone flowmeter Advantages: V-shaped cone flowmeter suspended in the center of the pipeline has a unique V-shaped cone. 'Rectification' function. Under the action of the throttling element, the flow field will pass through the 'unsteady flow'→steady flow→The change process of constant (constant) flow' reaches the ideal prerequisite for the measurement principle of differential pressure flowmeter in the upstream part of the throttling element. Since the V-shaped cone has the functions of self-rectification and self-cleaning, the cone And there is no debris left on the pipeline. The throttling edge of the V-cone flowmeter is an obtuse angle, and a boundary layer is formed during flow, so that the fluid leaves the throttling edge. The boundary layer effect prevents the dirty fluid from wearing the throttling edge, and its ? value does not change for a long time. Therefore, there is no need to repeat the calibration, it has long-term stability, and there is almost no requirement for the length of the straight pipe section. It is a throttling device that is close to the ideal state. Disadvantages: Non-standardized products need to be calibrated by real flow before leaving the factory. Full tube type instrument, the larger the diameter of the tube, the heavier the volume. Installation requirements: Depending on the process pipeline conditions at the installation location of the instrument, generally only 0-3D front and rear straight pipe sections are required. Configuration: There are the following three configurations: 1 V-cone flow sensor, users can make other configurations. 2 V-type cone flow transmitter, composed of nozzle flow sensor and differential pressure transmitter. There are two structures of split installation and integrated installation. 3 V-type cone flowmeter has two structures of split installation and integrated installation: 2. Advantages of standard orifice flowmeter: high cost performance. Standard orifice plate has a long history, with international and national standards and verification regulations and a large number of test data, without real-flow calibration. The measurement data is authentic and reliable, and can be used as a meter for trade settlement. Disadvantages: Factors such as wear and dirt on the acute edge of the orifice plate will affect the measurement accuracy. The verification period is 6-12 months shorter. Installation requirements: Long enough straight pipe section, generally 20 times D before the table and 10 times D after the table. Configuration: There are the following three configurations: 1 orifice flow sensor, users can make other configurations by themselves. 2 orifice flow transmitter, composed of nozzle flow sensor and differential pressure transmitter. There are two structures of split installation and integrated installation. The 3-orifice flowmeter has two structures: split installation and integrated installation: the recommended order of gas metering selection is as follows 1. Use standard orifice flowmeter 2. Choose V-shaped cone flowmeter 1. Advantages of standard orifice flowmeter: The standard orifice differential pressure flowmeter has become the most important natural gas flowmeter in the world, accounting for about 70% in foreign countries and about 90% in China. It has a long historical background and various test data are complete. Simple structure, no moving parts, stable and reliable use, rich experience in design, manufacture and application. The degree of standardization is high, and real flow calibration is not necessary. Standard orifice plates have reliable experimental data and perfect international and national standards. As a flow meter for trade settlement. Cost-effective. Disadvantages: Factors such as wear and dirt on the acute edge of the orifice plate will affect the measurement accuracy. The verification period is 6-12 months shorter. Installation requirements: Long enough straight pipe section, generally 20 times D before the table and 10 times D after the table. Configuration: There are the following three configurations: 1 orifice flow sensor, users can make other configurations by themselves. 2 orifice flow transmitter, composed of nozzle flow sensor and differential pressure transmitter. There are two structures of split installation and integrated installation. 3 Orifice flowmeter, there are two structures of split installation and integrated installation: 2. Advantages of selecting V-shaped cone flowmeter: The V-shaped cone suspended in the center of the pipeline has a unique 'rectification' function. Under the action of the throttling element, the flow field will pass through the 'unsteady flow'→steady flow→The change process of constant (constant) flow' reaches the ideal prerequisite for the measurement principle of differential pressure flowmeter in the upstream part of the throttling element. Since the V-shaped cone has the functions of self-rectification and self-cleaning, the cone And there is no debris left on the pipeline. The throttling edge of the V-cone flowmeter is an obtuse angle, and a boundary layer is formed during flow, so that the fluid leaves the throttling edge. The boundary layer effect prevents the dirty fluid from wearing the throttling edge, and its ? value does not change for a long time. Therefore, there is no need to repeat the calibration, it has long-term stability, and there is almost no requirement for the length of the straight pipe section. It is a throttling device that is close to the ideal state. Disadvantages: Non-standardized products need to be calibrated by real flow before leaving the factory. Full tube type instrument, the larger the diameter of the tube, the heavier the volume. Installation requirements: Depending on the process pipeline conditions at the installation location of the instrument, generally only 0-3D front and rear straight pipe sections are required. Configuration: There are the following three configurations: 1 V-cone flow sensor, users can make other configurations. 2 V-type cone flow transmitter, composed of nozzle flow sensor and differential pressure transmitter. There are two structures of split installation and integrated installation. 3 V-type cone flowmeter has two structures: split installation and integrated installation: The above is the entire content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Recommendation for Selection of Gas Flow Meters'

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