『Steam vortex flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
What flow meter is used to measure superheated steam/saturated steam? Vortex flowmeters are generally used to measure superheated steam and saturated steam. To ensure measurement accuracy, appropriate temperature or pressure compensation should be selected based on the characteristics of both. Saturated steam: Water is heated at a certain pressure until it boils and vaporizes. At this point, the steam temperature is equal to the saturation temperature, which is called saturated steam. The saturation pressure and saturation temperature correspond to each other, and both pressure compensation and temperature compensation can be used during measurement. Due to the relatively easy pressure compensation and high measurement accuracy, pressure compensation methods are mostly used in practical applications, such as the use of LUB split vortex flowmeter embedded with HSYB pressure transmitter. Overheated steam: Saturated steam continues to be heated, and when the temperature rises and exceeds the saturation temperature at that pressure, it is called superheated steam. Superheated steam is a single-phase fluid with characteristics similar to gases. Its temperature and pressure are two independent variables, and its density is determined by both. When measuring, any change in temperature or pressure can cause a change in steam density, which in turn affects the mass flow rate. Therefore, temperature and pressure compensation must be performed simultaneously to ensure accuracy, such as when using a LUB split vortex flowmeter with HSYB pressure transmitter and WZPK platinum resistor. In addition, measuring the flow rate of high-temperature steam (superheated steam or saturated steam) can also use LUB integrated vortex flowmeter 
2. Several key points for selecting, installing, and using steam vortex flowmeters
The key points for selecting, installing, and using steam vortex flowmeters are as follows: Selection points: Scientific and accurate beam destruction for steam density compensation: When measuring steam mass flow rate, steam pressure and temperature changes must be considered, and density compensation must be performed through a flow integrator.
. Platinum resistors for measuring steam temperature need to be installed in a standardized manner, including insertion into the center of the pipeline, installation at 5 times the diameter downstream of the flowmeter, and insulation measures taken at the installation location. When measuring steam pressure, if a pressure pipe is used for pressure measurement, zero point shift must be performed, and it can also be corrected in the flow accumulator; The pressure transmitter is installed at 4 times the diameter downstream of the flowmeter, and its front valve and sealing gasket should be intact and unobstructed. If pressure and temperature compensation are used, the set values should strive to be close to reality. In the flow integrator, it is necessary to correctly set the operating status of the steam flow meter. For situations where it is difficult to determine the steam status, it is recommended to use an intelligent flow integrator, combined with platinum resistors and pressure transmitters for temperature and pressure compensation. Reasonable selection of range ratio: Range ratio is the ratio of the maximum and minimum flow rates that a flowmeter can measure within a given accuracy range. User
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