Automatic monitoring equipment for evaporation of newly built reservoirs in Gansu Province

Automatic monitoring equipment for evaporation of newly built reservoirs in Gansu Province

Surface evaporation is an important link in the water cycle and a significant topic in hydrological research. It is the main part of water loss in reservoirs, lakes, and other bodies of water, and is also the basic reference material for studying land surface evaporation. Water surface evaporation data is required in water resource assessment, hydrological model determination, water conservancy and hydropower engineering, and planning, design, and management of industrial and mining enterprises with large water consumption.

Water surface evaporation, as a characterization of evaporation capacity, is a necessary analysis content for water resource evaluation work. Generally, the water surface evaporation of the E601 type evaporator on the ground is used as the analysis basis. The use of the E601 ground evaporator in various parts of China dates back to the early 1960s and has accumulated more than 40 years of measured data. This not only provides important basis for previous national water resources surveys and evaluations, but also lays the foundation for the study of the long-term variation law of water surface evaporation.

JYB-ZF fully automatic digital evaporation station realizes automatic water level change measurement, automatic overflow calculation, automatic rainfall calculation, and automatic water replenishment on the basis of manual evaporation, thus achieving automatic measurement of daily evaporation. 4G wireless transmission is adopted in communication, and real-time monitoring data is sent to the hydrological center station server, making it convenient for various units to access and view the data in a timely manner.

It achieves real-time monitoring and intelligent management of evaporation through technologies such as evaporation buckets, water level sensors, intelligent valves, and 4G wireless transmission. When the water level in the evaporator tank is below the set threshold, the intelligent valve will automatically open to replenish water and maintain a stable monitoring environment. At the same time, real-time data is uploaded to the cloud through 4G wireless communication, enabling remote management and data storage‌The main functions include real-time monitoring of evaporation, intelligent water replenishment, and remote management, thereby improving the accuracy and automation of monitoring‌Suitable for observing water surface evaporation in various regions and types.

【 Applicable fields 】

Meteorological stations, hydrological stations, water conservancy, agricultural research, ecological environment monitoring and other fields.

Real time monitoring of evaporation rate‌Measure water level changes through a water level sensor, calculate evaporation rate, and accurately record the process of water evaporation‌.

‌Intelligent hydration‌When the water level in the evaporator tank is below the set threshold, the intelligent valve automatically opens to replenish water, ensuring continuous and accurate data‌.

‌Remote data transmission‌Real time uploading of data to the cloud through 4G wireless communication for remote management and data storage‌.

‌Intelligent data analysis‌By combining meteorological parameters such as temperature, humidity, wind speed, and air pressure, analyze the trend of evaporation changes and provide scientific basis for meteorological research and water resource assessment‌.

‌abnormal warning‌When the water level drops abnormally or equipment malfunctions, the system automatically alarms and reminds management personnel to check and maintain in a timely manner.

These functions enable automatic evaporation stations to be widely used in meteorological stations, hydrological stations, agricultural research, ecological environment monitoring and other fields, providing accurate data support for scientific research and water resource management‌.

Automatic monitoring equipment for evaporation of newly built reservoirs in Gansu Province

1. High resolution: 0.1mm, high precision: ± 0.3% FS

2. High stability, with weak accuracy affected by wind and waves.

3. No temperature drift or time drift.

4. Long lifespan: The photoelectric encoder has a lifespan of up to 10 years

5. RS485 output

6. Automatic deduction of rainfall, overflow, automatic replenishment, and drainage

7. Fully automatic evaporation observation that complies with hydrological observation standards

8. Unrestricted recording of evaporation, overflow, and rainfall data

This evaporation station system is based on the basic core principle of connectors, with evaporation buckets, rain gauges, and static water level gauges as the basic observation tools. The collector automatically collects, processes, and displays information on evaporation, precipitation, overflow, and water replenishment processes, and automatically controls the water replenishment and drainage processes. The collector is connected to the upper computer system through RS485/232 communication interface, and the application software provided by the system can realize remote monitoring of water surface evaporation process information and data compilation and storage.

When the water level in the evaporation bucket drops due to evaporation, the water level in the static water bucket synchronously drops. The float pulls the measuring cable to drive the measuring wheel and encoder to rotate, and the encoder outputs encoded data corresponding to the amount of water level drop. The collector calculates the water surface evaporation during the corresponding time period by collecting the water level changes within the corresponding time range. When the water level in the evaporation bucket drops to the agreed value, the collector controls the water replenishment pump to work, replenishing water to the evaporation bucket to restore the water level in the bucket to the height of the water level mark line. Then, using the height after replenishment as the starting point, the evaporation amount for the next period is measured. On rainy days, when the water level in the evaporation tank rises to the agreed value, the collector drives the drainage device to work, discharges excess water, and calculates the overflow amount based on relevant data.