CN204540211U - A kind of Intelligent drip irrigation system based on solar energy power generating - Google Patents

Abstract

The utility model relates to an intelligent drip irrigation system based on solar photovoltaic power generation, which belongs to the drip irrigation system. The photovoltaic power generation device and the storage battery are respectively connected to the inverter, and the inverter is connected to the power switch of the water lifting pump and the power switch of the booster pump, and the power switch of the water lifting pump is electrically connected to the water lifting pump and the water inlet valve respectively. One end of the water lifting pump It is connected to the water well, and the other end is connected to the water inlet valve. The water inlet valve is connected to the water storage tank. The bottom of the water storage tank is connected to the water outlet valve, tee, filter, and bypass valve in sequence. The bypass valve passes through the booster pump all the way. It is connected to the drip irrigation system, and the other is directly connected to the drip irrigation system. The power switch of the booster pump is electrically connected to the booster pump, and the fertilizer or medicine box is connected to the tee through the valve. The advantage is that it solves the electricity consumption of drip irrigation in areas without electricity. The power generation itself does not produce pollution, and can effectively reduce other pollution sources, reduce the economic burden brought by irrigation electricity costs, and is particularly convenient for application.

Description

An intelligent drip irrigation system based on solar photovoltaic power generation

technical field

The utility model belongs to a drip irrigation system, in particular to a drip irrigation system based on solar photovoltaic power generation.

Background technique

Scientific irrigation has a great impact on agricultural production. As an important commodity grain base in the country, in 2014 Jilin Province experienced severe drought in many major grain-producing counties, with a total of 10.09 million mu of autumn crops suffering from drought. Among them, 10 major grain-producing counties including Changling, Nong'an, and Gongzhuling had the least rainfall since 1951, and some plots even had no harvest. Taking Nong'an County as an example, there has been a lack of effective precipitation since July, and many corn stalks in the field have withered to two-thirds of the corn stalks, and some even died. It is expected that by the end of August, there will be significantly less precipitation, the area of drought will further expand, and the degree of drought will continue to increase. Due to the high cost of artificial irrigation, the rural areas in the disaster-stricken areas are still "relying on the weather". Once a disaster occurs, their self-rescue ability is very limited. Therefore, actively exploring high-tech and efficient irrigation technologies is urgent and challenging for agricultural production in Jilin Province.

The existing irrigation methods do not meet the needs of rural production in Jilin. Farmland irrigation in vast rural areas is relatively concentrated in terms of power consumption time. During the irrigation season, the agricultural power load increases sharply, greatly increasing the power supply pressure of the power grid, and even causing power cuts in some areas. To meet the demand for irrigation load in these areas, it may be necessary to increase the capacity of the main transformer, but the load rate of irrigation load is low and the duration is short, so the economy is poor. In some areas without electricity, there is no low-voltage power supply line that can be used to drive water pumps for irrigation, so small diesel engines are used as power to drive water pumps for irrigation. This has several disadvantages: (1) Diesel combustion produces pollutant emissions, which is not conducive to Energy saving and environmental protection; (2) The majority of agricultural practitioners do not have the habit of storing oil, resulting in tight oil supply during the irrigation period, while diesel sales cannot be guaranteed during idle hours; (3) The energy used for irrigation does not have high requirements for energy quality. Using high-quality primary energy consumption to meet low-quality energy demand is not conducive to energy efficiency and environmental protection.

Film-covered drip irrigation technology is a water-saving irrigation technology that has been popularized in the three northeastern provinces since 2010. Its advantage is that film-covering can effectively reduce water evaporation, and drip irrigation pipes all over the ground continuously transport water to the roots of corn, saving water Save effort. However, there are the following defects: (1) It must be cost-effective in a place close to the power grid, and the rural power grid in Jilin Province is weak, field crops in the field are far away from the power supply, the investment in laying lines is large and the operation is not safe, and the cost of electricity is high; (2) There is no Diesel engines are required to pump water in areas with electricity, and the cost is too high to bear; diesel engines are not environmentally friendly and cause oil supply pressure; (3) drip irrigation works for a long time and is often unattended.

Contents of the invention

The utility model provides an intelligent drip irrigation system based on solar photovoltaic power generation to solve the problems that irrigation is limited by seasonal time, the burden of electricity charges is large, and the environment is polluted.

The technical solution adopted by the utility model is: the photovoltaic power generation device and the storage battery are respectively connected to the inverter, the inverter is respectively connected to the power switch of the water lifting pump and the power switch of the booster pump, and the power switch of the water lifting pump is connected to the power switch of the water lifting pump and the charging pump respectively. The water valve is electrically connected, one end of the water pump is connected to the well, the other end is connected to the water inlet valve, the water inlet valve is connected to the water storage tank, and the bottom of the water storage tank is connected to the water outlet valve, tee, filter, and bypass valve in sequence. One way of the bypass valve is connected to the drip irrigation system through the booster pump, and the other way is directly connected to the drip irrigation system. The power switch of the booster pump is electrically connected to the booster pump, and the fertilizer or medicine box is connected to the tee through the valve; The data remote transmission receiving device is connected to the bus, and the bus is respectively connected to the power switch of the water pump, the water inlet valve, the water outlet valve, the bypass valve, the power switch of the booster pump, and the valve.

An embodiment of the utility model is: the inverter is connected to the DC working power supply, the camera is connected to the DC working power supply, and the field controller is connected to the camera through a data bus.

An embodiment of the utility model is: the sensor is connected to a DC working power supply, the sensor is connected to the DC working power supply, and the field controller is connected to the sensor through a data bus.

An embodiment of the utility model is: the sensor includes one or more of a soil moisture sensor, a temperature sensor, a pressure sensor, a water level sensor or a rainfall sensor.

The utility model has the advantage of novel structure, and the solar photovoltaic power generation system is used as the power source of the environment-friendly and energy-saving film-covered irrigation system. Generate electricity, and the generated electric energy drives the water pump to draw water, which is input into the irrigation system for irrigation. It has the following characteristics: (1) Solve the electricity consumption of drip irrigation in areas without electricity; (2) Power generation itself does not produce pollution, and can effectively reduce other pollution sources; (3) Reduce the economic burden brought by irrigation electricity charges; (4) Apply special convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The photovoltaic power generation device 1 and the storage battery 2 are respectively connected to the inverter 3, and the inverter is respectively connected to the water pump power switch S1 and the booster pump power switch S2, and the water pump power switch S1 is connected to the water pump 4 and the water inlet valve respectively. V1 is electrically connected, one end of the pump is connected to the water well 5, the other end is connected to the water inlet valve V1, the water inlet valve V1 is connected to the water storage tank 6, the bottom of the water storage tank is connected to the water outlet valve V2, the tee 7, the filter 8, The bypass valve V3 is sequentially connected. One way of the bypass valve V3 is connected to the drip irrigation system 10 through the booster pump 9, and the other way is directly connected to the drip irrigation system. The power switch S2 of the booster pump is electrically connected to the booster pump 9. The fertilizer or medicine The tank 14 is connected to the tee 7 via the valve V4; the field controller 11 is connected to the data remote transmission receiving device 12 and the bus 13, and the bus is respectively connected to the pump power switch S1, the water inlet valve V1, the water outlet valve V2, the bypass valve V3, The booster pump power switch S2 and the valve V4 are connected.

One embodiment of the utility model is: the inverter 3 is connected with the DC power supply 15 , the camera 16 is connected with the DC power supply 15 , and the field controller is connected with the camera through the data bus 18 .

One embodiment of the utility model is: the sensor 17 is connected to the DC working power supply 15 , the sensor 17 is connected to the DC working power supply 15 , and the field controller is connected to the sensor 17 through the data bus 18 .

One embodiment of the utility model is: the sensor 17 includes one or more of a soil moisture sensor, a temperature sensor, a pressure sensor, a water level sensor or a rainfall sensor.

The working principle of the utility model is:

As shown in Figure 1, when irrigation is required, the inverter takes power from the solar photovoltaic power generation device or battery, powers on the AC power supply, opens the valves V1, V2, and V3, and closes the power switch S1 of the pump and the power supply of the booster pump. Switch S2, the water from the water source enters the water storage tank through the water pump, passes through the filter or pressurizes or bypasses to the drip irrigation system, and enters the roots of the seedlings, and the irrigation system can irrigate. The bypass valve V3 is adjusted according to whether the drip irrigation system needs to be pressurized. Corresponding switching, valve V4 is selected according to whether fertilization or pesticide application is required, and sensors and cameras are selected according to needs.

The following is an example of implementing such an intelligent drip irrigation system based on solar photovoltaic power generation, but the implementation method is not limited thereto.

Solar photovoltaic power generation device, energy required for daily water extraction: 1.5kWh. According to the hydropower efficiency, the hydropower efficiency is 50% according to the relevant data. Considering the pump system efficiency, inverter efficiency, photovoltaic module matching efficiency, and loss efficiency, the total is 60%. Therefore, the total energy requirement is 5.2KWh. The peak sunshine hours in Northeast China are about 3.8 hours. Therefore, the peak power of solar photovoltaic modules is selected to be 6KW. It can ensure the stable operation of the drip irrigation system, and the running time is designed to be 2 hours.

Auxiliary battery components, the battery pack is used as an auxiliary storage unit, and drip irrigation is not required in rainy weather, 32 12V200AH batteries can be used to meet the requirements.

Field controller, the field controller is used for power management, and also takes into account the function of system signal collection, collecting data such as sensor, camera, water pump status, etc., and transmitting it to the remote monitoring host through the data remote transmission device, and can receive the control signal driven by the remote monitoring host , and then through the control bus to control related valves or switches, and the controller CPU selects a single-chip microcomputer.

Water storage tank, the water storage tank is designed as an overhead pool, the distance from the bottom of the pool to the ground is 3m, the pool area is 10m ² , and it is designed as a rectangular tank with a water depth of 1m, a length of 3.3m, and a height of 3m.

Water pump, booster pump. Suction lift: The suction lift of the centrifugal pump is 1-5m, and the maximum suction lift is 5m; lift: the total vertical distance from the center line of the pump to the water surface of the storage tank, designed to be 30m; flow rate: designed to be 8m ³ /h; Power: The total power is designed to be 1.1-1.5KW.

Drip irrigation tubing. Commonly used pipes for agricultural water supply buried are PE and PVC, and PE pipes are used in this scheme. The main pipe adopts Ф90 hard pipe, the branch pipe adopts PEФ63 hard pipe, the auxiliary pipe adopts PEФ32 hose, and the capillary pipe adopts Ф16 drip irrigation belt.

Claims (4)

1. An intelligent drip irrigation system based on solar photovoltaic power generation, characterized in that: the photovoltaic power generation device and the storage battery are respectively connected to an inverter, and the inverter is respectively connected to a water pump power switch and a booster pump power switch, and the water pump The power switch is electrically connected to the water pump and the water inlet valve respectively. One end of the water pump is connected to the well and the other end is connected to the water inlet valve. The water inlet valve is connected to the water storage tank. The bottom of the water storage tank is connected to the water outlet valve, tee, filter One way of the bypass valve is connected to the drip irrigation system through the booster pump, and the other way is directly connected to the drip irrigation system. The power switch of the booster pump is electrically connected to the booster pump, and the fertilizer or medicine box is connected to the drip irrigation system through the valve. Three-way connection; the field controller is connected to the remote data transmission receiving equipment and the bus, and the bus is respectively connected to the power switch of the water pump, the water inlet valve, the water outlet valve, the bypass valve, the power switch of the booster pump, and the valve. 2. A kind of intelligent drip irrigation system based on solar photovoltaic power generation according to claim 1, characterized in that: the inverter is also connected to the DC power supply, the camera is connected to the DC power supply, and the field controller communicates with the DC power supply through a data bus. Camera connection. 3. An intelligent drip irrigation system based on solar photovoltaic power generation according to claim 2, characterized in that: the sensor is connected to a DC power supply, the sensor is connected to the DC power supply, and the field controller is connected to the sensor through a data bus. 4. An intelligent drip irrigation system based on solar photovoltaic power generation according to claim 3, wherein the sensor includes one or more of a soil moisture sensor, a temperature sensor, a pressure sensor, a water level sensor or a rainfall sensor.