Vortex flow meter for water flow meter selection

Abstract: The vortex flow meter information of the water flow meter selection is provided by the excellent flow meter and flow meter manufacturers and quotation manufacturers. Generally, for the selection of water flowmeters, we will first think of electromagnetic flowmeters and open channel flowmeters, but sometimes the medium is very pure and the conductivity is very low, or what should we do when the installation site does not meet the installation requirements of open channel flowmeters? We also have One chooses VNL. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following is the details of the vortex flowmeter article on the selection of water flowmeters. Generally, for the selection of water flowmeters, we will first think of electromagnetic flowmeters and open channel flowmeters, but sometimes the medium is very pure and the conductivity is very low, or what should we do when the installation site does not meet the installation requirements of open channel flowmeters? We also have a choice——VNLUGB snail flowmeter. The vortex flowmeter has simple structure, easy installation and maintenance, small pressure loss, wide range, long service life, stable performance, and the meter coefficient is not affected by the temperature, pressure, viscosity and composition of the fluid within the specified Reynolds number range. The impact of changes and other characteristics, has been more and more people of all ages. For the selection of the vortex water flowmeter, four selection parameters must be grasped, namely the diameter of the pipe; the maximum, minimum and commonly used instantaneous flow rates in the near and long term; the design pressure of the measured medium; the temperature of the measured medium. 1. Selection of caliber The caliber of the vortex flow sensor does not have to be the same diameter as the process pipeline, but should be selected reasonably according to the flow rate and flow. The selection of the vortex flowmeter diameter mainly considers the lower limit flow. Generally, the lower limit of the measured water velocity is 0.5m/s, and the normal flow rate is preferably between 1/2-2/3 of the measurement range. For example, 2. The selection of signal output Choose different output forms according to the requirements of the collected signals. When the flow accumulation is required, the pulse output type can be selected, and the analog (4-20mADC) output type can be selected when the control is required. Generally, we will do 4-20mA signal output to the user. 3. Instrument installation The vortex water flowmeter should be installed in a place with heat insulation, ventilation and easy maintenance, and try to install it in a place far away from vibration sources and strong electromagnetic interference. Where vibration exists, a vibration damping device must be used to reduce the vibration of the pipeline. Impact. Vortex flowmeters can be installed horizontally, inclined or vertically on the pipeline. Pay attention to the installation position. When installing vertically, the liquid medium must flow from bottom to top: when a temperature, pressure sensor or flow regulating valve needs to be installed on the pipeline, the temperature and pressure sensor and regulating valve should be installed downstream of the flowmeter. There must be a long enough straight pipe section before and after the vortex flowmeter, and the inner diameter of the pipe must be the same as the inner diameter of the vortex flowmeter. The inner diameter of the gasket connected to the pipeline is slightly larger than the inner diameter of the sensor, and the gasket cannot be protruded into the pipeline. Inside. 4. Parameter setting The meter coefficient of the flowmeter is calibrated under laboratory conditions. When used on site, the meter coefficient should be corrected. 5. Routine maintenance In order to ensure the accuracy and reliability of the long-term operation of the meter and avoid unexpected shutdown and data loss, it is necessary to strengthen the daily management and periodic maintenance of the meter itself and all aspects of the entire flow system after the flowmeter is put into operation. 6. Limitations of the vortex water flowmeter Because the vortex flowmeter is essentially a fluid vibration type flowmeter, it is particularly sensitive to external vibration and the flow state of the fluid. Pipeline vibration, impact force of pipe fluid, and random pulsating pressure due to changes in fluid pressure will have a greater impact on the measurement of the instrument. Especially in the measurement of small flow, the lateral lift generated by the small flow is small, the detection signal is weak, and it is easily affected by fluid impact vibration noise and pipeline vibration noise. After more than ten years of development, the flowmeter manufacturer has always been based on honest operation, customer demand first, and quality assurance as the priority. Continuous efforts are made to develop new technologies, improve product performance, use high-quality materials, and be meticulous about product quality, which is why it has been well received by customers. All my colleagues look forward to flying with you. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Vortex Flow Meter for Water Flow Meter Selection'

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