In power production, the amount of demineralized water in power plants is quite large, how to effectively measure the demineralized water is a more concerned problem for users. According to the traditional flowmeter selection method, it is generally the choice of orifice flowmeter, or turbine flowmeter. Electromagnetic flowmeter is not suitable for measuring demineralized brine, electromagnetic flowmeter requires that the medium must be a conductive liquid in order to meet the basic requirements of its normal operation. Although the electromagnetic flowmeter has high accuracy and stable operation, it is no problem in measuring general media, such as sewage, ionized water, acid, alkali and salt solutions, but because the demineralized water in the power plant has low ion content and low conductivity, its conductivity can not meet the measurement requirements, so the electromagnetic flowmeter can not measure the flow of demineralized water.
Orifice flowmeter and turbine flowmeter belong to the traditional type of flowmeter, because the measuring parts need to be in direct contact with the measuring medium, there are also various defects such as choke, poor accuracy, and installation trouble. The effect is not ideal. During site inspection, but it has a lot of shortcomings, because it is the desalted water of the centrifugal pump, it is often stuck by debris, and there is frequent start-stop pump, the rotor is often broken!
Therefore, for the flow detection of brine removal, we generally recommend the external clamp-on type ultrasonic flowmeter to our customers, which is very good for measuring the flow of brine removal. Recommended reasons are as follows:
1, this is the difference between the external clamp-type ultrasonic flowmeter and electromagnetic flowmeter, the external clamp-on type ultrasonic flowmeter is not affected by the conductivity of the fluid, and can accurately measure the electromagnetic flowmeter can not measure the low conductivity of pure water or other fluids.
2, the accuracy of the external clamp-on type ultrasonic flowmeter meets the measurement requirements, and its accuracy is usually ±1%, and ±0.5% after correction.
3, external clamp-on type ultrasonic flowmeter because its measuring probe is outside the tube wall, through the coupling agent to be closely connected with the tube wall, and is not in direct contact with the measured medium, there is no choke, its operating life can be well guaranteed.
4, strong anti-interference ability, wide power supply amplitude, to meet the needs of the scene.
5, the installation of the external clamp on ultrasonic flowmeter is also very convenient, as long as the external clamp on sensor is installed on the external pipe, to avoid cutting off the pipe and polluting the brine.
Lanry clamp on ultrasonic flowmeter is a very excellent flow measurement product, very suitable for PVC, cast steel and stainless steel and other pipe materials flow measurement, it is not only suitable for measuring electromagnetic flowmeters and other products can not be competent for low conductivity in addition to salt water or pure water, but also suitable for other types of fluid media, The accuracy of ultrasonic flowmeter measurement of liquid flow is almost not affected by the temperature, pressure, viscosity, density and other parameters of the measured flow body, which solves the problem of flow measurement of strong corrosive, non-conductive, radioactive and flammable and explosive media that are difficult to measure by other types of meters.
Post time: Jun-09-2023