External clamp-on ultrasonic flowmeter in fluid measurement applications

Project Overview

Clamp-On Ultrasonic Flowmeter is a flow measurement instrument implemented using high-precision ultrasonic sensing technology.

1. Features

1. Non-invasive measurement: no need to cut the pipeline, no need to shut down the machine, and no contamination of the pipeline medium.

2. Wide applicability: suitable for a variety of fluid media, such as water, oil, chemicals and natural gas, and suitable for various pipeline sizes.

3. High precision: Multi-path measurement technology is adopted to eliminate instability and abnormal data in the signal and improve measurement accuracy.

4. Easy installation: Just stick the sensor on the surface of the pipe to complete the installation. There is no need to break the pipe and cut off the flow, and the installation is non-destructive.

5. Intuitive data reading: easy to carry, convenient to operate, intuitive to read data, and can memorize and save the read data.

2. Working principle

The clamp-on ultrasonic flowmeter obtains the flow rate of the fluid through the propagation time difference of ultrasonic waves, and then calculates the flow rate in the pipeline. Specifically, when an ultrasonic beam propagates in a liquid, the flow of the liquid will cause a slight change in the propagation time, and the change in the propagation time is proportional to the flow rate of the liquid. By measuring the propagation time of sound waves in the downstream and counter-current directions, the flow velocity is calculated based on the time difference.

3. Application scenarios

Clamp-on ultrasonic flow meters have a wide range of application scenarios, including but not limited to:

1. Water, sewage, seawater, etc. Measurement

2. Water supply and drainage

3. Power plants (nuclear power, thermal power and hydraulic power)

4. Paper making and pulping

5. Heat, heating, heat supply

6. Leak detection

7. Metallurgy, mining

8. Petroleum, chemical industry

9. Traffic inspection, traffic tracking and collection

10. Heat measurement, heat balance

11. Traffic, thermal management, monitoring network system

4. Advantages and Disadvantages

(1) Advantages

1. Non-contact measurement: There is no need to destroy the pipeline, and the flow measurement can be carried out on the installed pipeline without breaking the pipe. stream to achieve lossless installation.

2. Widely applicable: It can measure a wide range of liquids, including water, seawater, slurry or oil, acid and alkali and other uniform liquids.

3. Simple installation: Just stick the external clip-on sensor on the surface of the pipe to complete the installation, which is easy to operate.

4. High precision: It can accurately measure the flow rate and flow rate of fluids, especially suitable for measuring pipes of different materials, such as metal pipes (stainless steel, carbon steel, cast iron, etc.), plastic pipes, etc.

5. Portability: It is easy to carry, intuitive to read data, and can remember and save the read data.

(2) Disadvantages

1. Limited measurement accuracy: the accuracy of domestic ultrasonic flowmetersThe accuracy level is generally level 1 or lower, and is greatly affected by external conditions (such as high electric fields, magnetic fields, etc.).

2. Temperature limitation: Generally it can only be used to measure fluids below 200°C.

3. Sensitive to pipeline conditions: If pipelines are not properly maintained (such as build-up or corrosion problems), inaccurate measurement results may result.

4. Fluid conductivity requirements: The fluid needs to be able to properly conduct ultrasonic waves, otherwise penetration problems may occur, leading to erroneous results.