Analysis of the Error Causes of the Software and Hardware of the Orifice Flow Meter in the Measurement Process

Abstract: The analysis information of the error causes of the software and hardware of the orifice flowmeter during the measurement process is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Due to the weather of the differential pressure transmitter of the mobile equipment, many problems in Xinjiang, the temperature difference between the parts of the pulse line is still large in the field conditions, the measurement error analysis of the orifice flowmeter in this field is the present, the hole Part is a mistake. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following is the details of the article on the analysis of the reasons for the error caused by the software and hardware of the orifice flowmeter during the measurement process. Due to the weather of the differential pressure transmitter of the mobile equipment, the temperature difference between many problems in Xinjiang is large, the connection part of the pulse line is still under field conditions, and the orifice flowmeter measurement error analysis is used in this field. Part is the possibility of a mistake, keep the focus. Possibility and measurement of the degree of erosion in the barrel wall of the corroded plate, especially at right angles to the inlet edge, separation in use, despite the formation of filtration devices and dust, diaphragms, mining also gas emission factors change, in the well plate , the necessary criteria, beyond the estimated flow measurement uncertainty, the effect of the measurement tube corroded at right angles to the comparison of the inner wall, and the radius of the inlet edge is a particularly severe US allele. Software problems with orifice flow meters, hardware problems, or less start a brief analysis. Etc., the gas flow rate, we have used a standard orifice flow meter to measure gas composition, differential pressure, pressure, temperature and flow rate. Any deviation from the design process is the most common site, and the actual value of the executed process is our biggest concern. In most cases, adding value to the design process, briefly analyzing the actual operation, the flow value is low, the main reasons are as follows. Citing false reliability by measuring differential pressure transmitters. The error distribution of the differential pressure gauge: when the system works at less than 50%, the relative error of the flow rate of 1% to 6% to 3% of the differential pressure measurement. Since the flow value is a function of the same Reynolds number, it is necessary to have a deviation in the flow value of the Reynolds number, which leads to a change in the flow coefficient that inevitably leads to a change. In this way, the flow values ​​to be produced deviate from the design values ​​of these effects in actual operation. When the medium temperature pressure deviates from the design value, the mass flow rate of the dielectric fluid of the process (including gas and liquid) is calculated under the design conditions, the design of the throttling device, the specific conditions, many parameters of the main parameters, pressure and temperature. The density of the fluid according to the dielectric is constant under this particular condition (temperature, pressure, etc.), and the main parameters, the actual performance of the medium, the temperature of the moving fluid, the pressure from this design value, etc. you will inevitably change Density in a fluid medium. The change in density of the fluid flow value in the medium is very intuitive. The processing operation is converted in accordance with the density of the fluid medium, and the reading of the meter gives the convenience of the volume flow rate in the normal state. Change the density of its dielectric fluid, changing the transition relationship. The effect caused by the actual implementation of the device is that the flow measurement aperture deviates from the design value. The open orifice plate is improperly processed and does not meet the design requirements. With the gradually balanced valve relationship, three valves, the gas flow occurs because there is a small leak, it is possible to reduce the pressure of the pipe and the output signal of the transmitter is low as the differential pressure gauge. The high and low pressure valves in check valve 3 are closed. I will continue to slow down until it reaches zero balance, the output of the leaking valve, the output of the instrument, and we will not change. Incorrect installation?? An error occurred. Reduced order flow meter orifice plate flips, and displaced piping arrangements, and piping from the wrong starting layout for installation are the main reasons for the prevalence of straight pipe sites that do not meet the required lengths. Errors generated by the instrument itself. Examples: eccentric position pressure, welding, welding protruding inlet hole, thickness error hole, stair attachment throttle, eccentric vertical sharpness, upstream end orifice surface roughness, steps in annular chamber size, taking hole pressure cuttings Displacement, processing non-standard or clogging. other errors. In the measurement process of the orifice plate flowmeter, the analysis of the causes of errors in software and hardware has become the most common error in natural gas transmission and sales in the storage work area (such as deformation). Bending orifice plates, such as gas, corruption, orifice plate damage, wound plate, corrosion of pipes, hardware problems, long-term use of these rings, gas permeability of the work area, so as to develop effective measures, maintenance of hole hardware problems, filling and sealing, regular and timely exchange of grease The corresponding part of the inspection and maintenance of the orifice plate: this is relatively easy to find and solve things. The above is the whole content of this article,You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Analysis of the Error Causes of the Software and Hardware of the Orifice Flow Meter in the Measurement Process'

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