What does the pipeline flow monitoring system refer to?

1、 Background introduction

The use of modern information technology and monitoring methods to build smart cities is not only the trend of urban development in the world today, but also an important part of ecological civilization construction. At the same time, the development of the new era has put forward higher requirements for the intelligence of water management. Therefore, it is not only necessary to construct a good urban rainwater and sewage drainage system, but also to adopt effective monitoring methods to protect the ecological environment of urban areas, which is particularly important.

Through the drainage network system, it is possible to query the distribution information of the pipeline network, monitor and collect drainage network data, and share data information with drainage systems, automatic monitoring systems for drainage pump stations, urban river management systems, etc. The smart drainage information system can process and analyze data to evaluate and predict the operation status of the drainage network, thereby achieving scientific and effective scheduling and management of the drainage network. 2、 System Overview:

According to feedback from on-site personnel, it is necessary to monitor various sewage outlets on site. Doppler ultrasonic flow meters are used in the pipeline network to simultaneously monitor water level, flow velocity, and flow rate. The telemetry terminal is connected uniformly, and the telemetry terminal card is inserted and uploaded to the cloud platform. Data can be shared at any time on WeChat or computer.

Power supply: It is recommended to use a lithium battery power supply system. If data is uploaded every 5 minutes, lithium batteries can provide continuous power supply for 2-3 months.

3、 Scheme composition:

1. Doppler ultrasonic flowmeter probe: This probe can simultaneously measure water level, flow velocity, flow rate, and water temperature.

2. Lithium battery power supply system (built-in telemetry terminal): mainly used for supplying power to sensor probes and telemetry terminals, generally using 45AH/12V batteries, with a default collection time of once every 5 minutes, which can last for about 3 months. The main function of the built-in telemetry terminal is to summarize and calculate the flow rate information of each measurement point, and send it to the server through GPRS wireless network. Real time water level and flow information can be viewed through cloud platform (free) or data receiving software (charged and requiring customers to have a fixed IP server).

3. Galvanized steel pipe: used for cable routing.

4. Installation bracket: used to fix the flowmeter probe inside the bottom of the pipeline.

5. Cloud platform

4、 Product features:

1. Doppler flowmeter:

Wide range: 0.02-5m/s (flow velocity)

The resolution can reach 1mm/s (flow velocity)

High response time, breaking the previous practice of requiring a long time to obtain flow rate and flow rate, with measurement results constantly refreshed.

The velocity area method for flow measurement is suitable for both full and non full pipes, and can freely set the cross-sectional water level relationship.

The internal high-precision temperature sensor can be used for water temperature measurement and sound velocity compensation.

The fluid dynamics shell design has minimal impact on the flow state of the water body and does not affect measurement accuracy.

The anti-corrosion shell design can work for a long time in harsh environments.

L can provide instantaneous flow values and cumulative flow values.

There are no mechanical rotating parts, and there are no problems such as sediment blockage or entanglement with water plants or debris. It is suitable for measuring in rivers with high suspended sediment content and floating objects such as water plants.

Measuring linearity, it has been calibrated at the factory and does not require calibration even after long-term use.

Equipped with data receiving software, it can read real-time and cumulative data.

Technical Specifications:

Flow rate: Measurement range: 0.02-5m/s

Accuracy: 1.0% ± 1cm/s

Resolution: 1mm/s

Water depth: Measurement range: 0m-10m

Accuracy: ± 1cm

Resolution: 1mm

Temperature: Measurement range: -10 ℃ -60 ℃

Accuracy: ± 0.5 ℃,

Resolution: 0.1 ℃

Flow rate: Measurement range: 0.001m ³/h-99999999 m ³/h (can be increased according to the cross-section)

Accuracy: ± 3% (varies depending on the cross-sectional flow state)

Resolution: 0.0001 m ³/s

Power supply: DC 10V-24V

Working current: 12V less than 0.1A

Output signal: RS485 (Modbus RTU)

Storage capacity: 2M (expandable)

Protection level: IP68

Working temperature: 0 ℃ -60 ℃ (non freezing)

Storage temperature: -10 ℃ -70 ℃

Equipment Material: Grey PVC