Agricultural electricity based water management system

The agricultural water conversion management system uses electricity to convert water into water. Considering the large number of agricultural water intakes, a calculation method of converting electricity into water is adopted. "Electricity to convert water" analyzes the relationship between electricity consumption and water intake to determine the water intake coefficient and calculate the water intake. The agricultural water conversion management system, with the help of the electricity conversion coefficient and electricity consumption, provides a method to grasp the scale of agricultural irrigation water, which has a good data support role in groundwater pressure collection, agricultural water price reform, and agricultural water resource tax reform.

Agricultural electricity based water management system

Water metering mode

In areas where only the measurement of water volume in agricultural irrigation wells is required, a relatively simple "water volume measurement" mode can be adopted, which involves selecting appropriate types of water measurement instruments and construction plans based on the site conditions, installing online water measurement facilities on agricultural irrigation wells, and ensuring data reporting to the provincial platform. When adopting the "water quantity measurement" mode, in principle, the county-level water administrative department should introduce third-party measurement service enterprises (hereinafter referred to as "service enterprises") with relevant service capabilities through public recruitment and signing of long-term service contracts to be responsible for the construction and management of the agricultural irrigation well measurement system within its jurisdiction. Service enterprises should use their own funds to carry out the construction of the measurement facility system, and as the property owner of the measurement facility, be responsible for the operation and maintenance management of the measurement facility during the service period stipulated in the contract. The county-level water administrative department shall, in accordance with the contract agreement, gradually pay the service fee in installments during the contract period based on the quality of measurement data services provided by the service enterprise. The annual service fee payment standard and payment method shall be determined on the basis of comprehensive consideration of factors such as one-time construction investment, annual operation and maintenance costs, equipment depreciation period, reasonable financial costs and profits of the service enterprise.

Technical scheme for controlling underground water resources through electricity conversion

At the measurement and control site, based on specific circumstances, in order to meet measurement requirements and minimize the impact on farmers, pipeline modifications and alterations should be avoided as much as possible. If necessary, modifications should be made by extending the water well vertically upwards without adding bends to meet the measurement requirements of the measuring equipment and achieve accurate measurement. This project is mainly divided into three categories based on the site environment:

Category 1: If the on-site horizontal direction cannot meet the measurement requirements through the extension pipeline, vertical construction is used to meet the equipment measurement requirements. As the equipment is constructed inside the wellbore, pipe section ultrasonic flow meters and water meters are used for underground construction, and split RTU is used

Type 2: The site itself meets the measurement needs, or the measurement site needs are met through simple modifications

Category 3: There is no fixed pump on site, and online water measurement needs to be carried out through an electric water telemetry terminal

Agricultural water splitting telemetry terminal

Product Overview

• This product is developed by our company specifically for the management and measurement of water consumption in non pump fields for agricultural irrigation wells. It is an electric water conversion underground water resource control device, and the principle of water measurement is based on electric water conversion calculation. It can accurately calculate water consumption based on the electricity consumption of the well.

• The underground water resource control device for agricultural machinery wells adopts an integrated design, including an electricity collection module, a 4G transmission module, a display module, and a machine well start stop control module.

(1) Electricity collection module: using a digital three-phase energy metering chip to achieve well useThe measurement of electricity is carried out and connected to the core module of electric water through pulse mode, with an accuracy of level 1.

(2) Start stop control module: The start stop control module uses a three-phase magnetic holding relay, which is in a normally engaged state. After exceeding the rated water usage, the load is separated and the power is cut off. Carrying current AC380V/60A, mechanical durability 100000 times, electrical durability 5000 times.

(3) 4G communication module: using 4G communication module or 4Gcat1 module to ensure communicationThe quality and stability of the information.

(4) Chinese character display module: using 19264 Chinese characters for easy viewing of water usage information.

(5) Electric water conversion module: using fixed and variable coefficients to convert electricity consumption into water consumption,And responsible for scheduling and coordinating the other four modules.

• Features

• (1) Can achieve electricity collection and calculate water volume;

• (2) Daily scheduled reporting of water consumption for a single well;

• (3) Exceeding the quota usage will automatically alert the platform or disable the well;

• (4) Charging water resource tax for exceeding quota usage;

• (5) Within the quota, it can be used to start and stop the water pump through a mobile app;

• (6) Remote parameter configuration;

• (7) The product supports online upgrade (OTA upgrade).

Functional parameters of measuring facilities

1. Hardware parameters

• (1) Voltage input: Three phase three wire 3x380V;

• (2) Current input: 20A (60A);

• (3) Electricity accuracy level: Level 2;

• (4) Accuracy level of water quantity: Level 2 (after calibration);

• (5) Start: 0.004Ib;

• (6) Power consumption: ≤ 2w;

• (7) Data saving: Data saving;

• (8) Display: Adopting 12864 Chinese characters with white background and black characters LCD liquid crystal display;

• (9) Communication method: 4GCAT1;

• (10) Maximum breaking load: 90A;

• (11) Protection level: IP65;

• (12) Environmental requirements: Operating temperature: -30~60 ℃; Working humidity: 45% to 75%.

2. Functional requirements

• (1) Integrated design of monitoring, control, and communication: built-in electrical parameter monitoring module (three-phase)Current, three-phase voltage, electricity consumption, power factor, etc;

• (2) Equipped with the function of "breaking water with electricity";

• (3) Capable of displaying cumulative water consumption, electricity consumption, annual water consumption, annual electricity consumption, instantaneous water consumption, and power consumption;

• (4) Equipped with over limit, load, pulse, power, network, and data transmission status indication functions;

• (5) Automatically report water and electricity consumption, with adjustable reporting intervals;

• (6) The equipment has the function of remotely configuring the water quota and water electricity conversion coefficient for the well;

• (7) Over quota alarm function;

• (8) Within the water quota for the well, water users can remotely control it through the APP;

• (9) When the water usage in the well exceeds the quota, the management unit can remotely force the shutdown of the water pump;

• (10) During seasonal fallow periods, it has the function of remotely prohibiting the use of water pumps;

• (11) Equipped with automatic sleep function to reduce power consumption;

• (12) Equipped with remote program automatic upgrade function;

• (13) Capable of reporting from multiple centers simultaneously;

• (14) Supports SZY206-2016 protocol, SL427-2021 communication protocol, and SL651-2014 hydrological protocol.

Installation of Measurement Facilities

2.1 Installation location selection

Well water resources

Source control installationplace

Figure 3-3 Equipment Installation Location Diagram

1. The equipment is installed at the lower port of the electricity meter in the power bureau.

2. The location can be selected according to local conditions.

2.2 Installation process

1. Material requisition

Details of single set materials above 30KW:

(1) 1 set of box body

(2) 25mm2 power cord

(3) 9 25mm2 copper noses

(4) 6mm2 ground wire

(5) Box lifting ears and matching screws

(6) 2 expansion plugs

(7) Adhesive tape

(8) 1 lead seal for the box body

Details of single set materials below 30KW:

(1) 1 set of box body

(2) 35mm2 power cord

(3) 9 35mm2 copper aluminum noses

(4) 6mm2 ground wire

(5) Box lifting ears and matching screws

(6) 2 expansion plugs

(7) Adhesive tape

(8) 1 lead seal for the box body

2. Box fixing

Fix the lifting ears with matching screws, tighten the ground wire with the lifting ear screws, and fix the box with expansion boltsKeep the box parallel and perpendicular inside the transformer room.

3. Incoming and outgoing linesAbove 30KW: 35mm2 aluminum wire crimped with copper aluminum nose (matching the on-site cable), connect the incoming and outgoing wires.Below 30KW: 25mm2 aluminum wire crimping copper aluminum nose (matching with the site), connect the incoming and outgoing wires.

4. Ground wireFix the ground wire at the grounding point of the transformer.

5. AntennaThe antenna enters the box through the antenna hole and is tightened to the connection on the right side of the instrument panelAdsorbed to the top of the box.

6. Seal the box with lead.

2 . 3 Installation accessoriesAbove 30KW

Below 30KW

2.4 Debugging steps

• 1. Power on and check if the display is normal and if the version number is correct;

• 2. Check if the communication light and signal quality are normal;

• 3. Whether the well number and station code are correct;

• 4. Whether the terminal can automatically exchange data and parameters with the center is a matching factor type;

• 5. Set the electric water conversion coefficient to check if the water conversion is normal and if the uploaded data is accurate.

Its main characteristics are as follows:

◆ Adopting high-definition LCM LCD screen display, easy to operate and convenient to use;

Support 4G-CAT1 wireless communication network across the entire network;

◆ Supports multiple data acquisition interfaces, enabling the collection of data such as water level, pressure, electricity, and water volume;

Using a positioning module, it can collect and report latitude and longitude; Adopting a high-performance, 16 bit embedded low-power embedded microprocessor with 256K bytes of FLASH memory, it has fast computing speed, strong anti-interference ability, reliable measurement, and high accuracy;

◆ Adopting flame-retardant plastic shell, with strong dielectric properties, flame retardancy, heat resistance, and wear resistance;

Supports dual data transmission and multiple reporting methods, enabling real-time monitoring of data;

Support remote firmware upgrade (OTA program).

Scope of Application

This product is mainly used for measuring irrigation water in farmland.