I. Overview of water intake methods in the water conservancy industry
At present, the water intake method of Chinese water conservancy industry mainly adopts two forms of open channel flow and pipeline delivery. Among them, pipeline transportation is widely used in the transportation of various water sources because of its good sealing and high utilization rate of water resources. Water sources that need to be transported by pipeline mainly include:
1. Groundwater: stable water quality and rich mineral content
2. Surface water: including river water, river water, lake water, etc., with the characteristics of convenient water intake. After these water sources are transported through pipelines, they are mainly used for: tap water production, industrial production, agricultural irrigation, ecological water replenishment and so on
Ⅱ. The scope of application of ultrasonic water meters
Ultrasonic flow measurement technology with its unique advantages has become an important solution in the field of modern water metering. Ultrasonic water meters are suitable for all applications where accurate measurement of water flow in pipes is required, especially for the following applications:
Typical application scenario
1. Industrial and commercial water metering supervision
Measurement of water source Wells provided by factories and enterprises, water monitoring of large public buildings (such as shopping malls, hospitals, schools), and measurement management of public water users such as commercial complexes
2. Measurement of agricultural irrigation water
Flow monitoring of branch canals and canals in large irrigation areas, water metering of high-efficiency water-saving irrigation projects, and water metering in the comprehensive reform of agricultural water price
3. Other special applications
Water metering in and out of sewage treatment plants, flow monitoring of water conservancy hub projects, measurement management of cross-basin water transfer projects
Ⅲ. Detailed explanation of technical advantages
1. Excellent water quality adaptability
Ultrasonic water meter adopts non-contact measurement principle, without any internal flow blocking components, which can perfectly cope with:
A water source with high sand content;
A body of water containing suspended matter such as aquatic grasses;
Corrosive water environment;
This unique design not only ensures the measurement accuracy, but also greatly extends the service life of the instrument.
2. High precision measurement performance
The measurement accuracy can reach ±1%, meeting the most stringent measurement requirements;
Wide range ratio (usually up to 1:250), suitable for large flow fluctuations;
The measuring principle of time difference method is adopted, which is not affected by water quality change.
3. Excellent environmental reliability
Fully sealed design, protection level up to IP68, can be fully immersed in water work;
Using special material shell, strong corrosion resistance;
Pass EMC anti-interference test to ensure stable operation in complex electromagnetic environment;
The unique anti-strong magnetic interference design can automatically recover after strong magnetic attack, which has more advantages than traditional mechanical water meters.
4. Intelligent management function
The standard RS485/M-BUS communication interface supports remote meter reading;
Optional wireless communication module (NB-IoT/LoRa);
Support data storage and exception alarm functions;
It can be seamlessly connected with SCADA system to realize information management of water resources.
5. Significant energy saving benefits
Zero pressure loss design, compared with the traditional water meter can reduce the pump energy consumption by more than 15%;
Ultra-low power consumption design, working current is only microamperes;
Built-in lithium battery power supply, service life of up to 10 years;
No external power supply is required for easy installation and maintenance.
Ⅳ. Industry application prospects
With the increasingly refined management of water resources, ultrasonic water meters, with their technical advantages, will be more widely used in the following fields:
Accurate measurement in the reform of water resources tax, supervision and management of water intake permits, construction of water-saving society, and construction of smart water systems
V. Conclusion
As a new generation of intelligent metering instruments, ultrasonic water meters, with their excellent performance and reliable performance, are providing strong technical support for the modernization of the water conservancy industry. With the continuous progress of technology and the accumulation of application experience, ultrasonic water meters will certainly play a more important role in the field of water resources management.