Ultrasonic flowmeter

Ultrasonic flowmeter
Features of ultrasonic flowmeter:
1) There are no moving parts in the installation pipe section of the flowmeter, which will not hinder fluid movement.
2) Not affected by the conductivity, temperature and pressure of the measured medium.
3) Lateral flow correction.
4) The measurement range is wide, ranging from small pipes with a diameter of 0.25 meters to large pipes with a diameter of 20 meters.
5) The range of flow velocity is wide, the flow velocity can be measured from 0.02m/s to 20m/s, and meet the requirements of measurement accuracy.
6) It can measure bidirectional flow, has temperature measurement function, can calibrate flow velocity, and has self-diagnosis function.
7) Online dry calibration is possible.
8) Ultrasonic flowmeter is installed, maintained and verified online without stopping water. Maintenance is simple and does not affect production.
9) There is no need to install valves and expansion joints before and after the installation of the ultrasonic flowmeter, which is simple to install and saves money.
10) The accuracy is 0.5 level.
11) Good stability, no zero drift, no interference from external electromagnetic and other factors, and can be verified once every 6 years.
Installation and installation point selection
The ultrasonic flowmeter is installed directly on the pipeline (steel pipe) or on the inner wall of the pipeline (concrete pipe), which is simple and quick to install. Installation costs are low. A set of ultrasonic flowmeter includes the host, transducer, and cable. Generally, the total weight is within 100 kg.
1. Equipment maintenance
The ultrasonic flowmeter is easy to maintain. When the transducer fails, it can be overhauled and replaced without stopping the water, and the maintenance does not affect the normal water supply.
Measurement error and drift
Ultrasonic flowmeters are generally installed on site. During the installation process, professional surveying and mapping technology is used to measure the geometric parameters of the pipeline, and a laser theodolite is used to determine the installation position of the transducer. Mature installation technology ensures the measurement accuracy of the flowmeter.
Versatility
Ultrasonic flowmeters are highly versatile. All ultrasonic flowmeters of pipe diameters use the same type of flowmeter, which is easy to maintain and replace.
Flow rate calibration and dry calibration
The ultrasonic flowmeter has a temperature measurement function with a measurement accuracy of ±0.5°C. The ultrasonic flowmeter measures the temperature not by adding a temperature measuring element, but by using the measuring principle of the ultrasonic itself to calculate the temperature.
The significance of monitoring temperature:
(1) Compared with the water temperature measured by the standard thermometer and the water temperature calculated by the flow meter, the flow rate can be calibrated online.
(2) Compared with the water temperature measured by the standard thermometer and the water temperature calculated by the flow device, it can check whether the flowmeter installation and the measurement of geometric parameters are accurate;
(3) Ultrasonic flowmeter can be calibrated dry online.