CN102388786B - Automatic water supply and drip irrigation method and system through wind power generation - Google Patents

Abstract

The invention discloses a wind power automatic water supply and drip irrigation method and system with simple method, easy implementation and high efficiency, which can simultaneously realize domestic water supply and drip irrigation. The water supply and drip irrigation method uses an intelligent controller to control the operation status of the energy storage tank and the water pump according to the wind strength and the water supply and drip irrigation volume, so as to realize the all-weather automatic complementary intelligent water supply powered by wind energy. The water supply and drip irrigation system includes a water pump, an energy storage tank, and a controller. The water pump, the energy storage tank, and their corresponding water supply pipes are connected to each other through an automatic regulating valve electrically connected to an intelligent controller. The water pump is powered by a wind energy battery. Provide power.

Description

Automatic water supply and drip irrigation method and system for wind power generation

technical field

The invention relates to a water supply system, in particular to an automatic water supply and drip irrigation method and system for wind power generation. the

Background technique

Rural domestic water and crop irrigation are two important issues in farmers' life and production. With the progress and development of the social economy, the domestic water supply in the vast rural areas has also been fundamentally improved, especially through the promotion of the use of tower-free water supply systems in rural areas, many farmers can not only use clean and clean tap water; however, although The towerless water supply system can improve rural domestic water use. However, on the one hand, the investment cost of the existing towerless water supply device is relatively high, and the structure is relatively complicated; on the other hand, due to the relative energy consumption of the existing water supply device As for the irrigation of crops, with the frequent occurrence of natural disasters, drought is also one of the most important reasons that seriously affect the harvest of crops, especially in the northwest region, this problem is particularly prominent, and the use of drip irrigation technology is undoubtedly the solution A relatively advanced technical means for this problem is a development trend. However, this technical method is not perfect at present, and there are still many problems to be solved, such as the problem of power energy. Drip irrigation is a decentralized operation. Therefore, there are many inconveniences in using grid power as power, which also restricts the development of drip irrigation technology to a certain extent. the

Contents of the invention

The object of the present invention is to provide a method and system for automatic water supply and drip irrigation for wind power generation in view of the deficiencies in the prior art. The water supply and drip irrigation method is simple and easy to implement. The system has a simple structure and adopts wind power generation as power to realize domestic water supply and crop drip irrigation at the same time, and has high operating efficiency. the

The water supply and drip irrigation method of the present invention includes setting a water supply storage device and a water pump powered by wind energy to form a water supply system through a controller to realize fully automatic water supply and drip irrigation without towers. At the same time, the energy storage tank is used as the energy storage device for water supply and drip irrigation, and the cooperation between the energy storage tank and the wind energy-powered water pump realizes the all-weather, fully automatic, self-adaptive and complementary intelligent water supply powered by wind energy and drip irrigation. the

The complementary intelligent water supply is to use wind power to automatically control the operation status of the water pump and the energy storage tank according to the change of wind force, and to control the corresponding water supply and drip irrigation volume of the energy storage tank according to the size and change of the output supply of the water pump according to the strength of the wind force , and make the operation output of the water pump always close to the corresponding power of the wind energy source. the

The complementary intelligent water supply is an intelligent controller using a set program, based on wind power, water supply volume, and drip irrigation volume (as input signals) through automatic When the wind is strong, the regulating valve is directly supplied with water by the water pump or through the energy storage tank, and at the same time supplies energy to the energy storage tank; when the wind is weak, the water pump and the energy storage tank are jointly supplied with water, and the lower limit of the operation of the water pump is set value, when the wind force is so weak that the water pump reaches the lower limit of operation and cannot meet the minimum frequency or voltage requirements for the pump to start, the water pump will stop working and the energy storage tank will supply water alone. the

The all-weather water supply is stored in the form of water by the energy storage tank instead of the storage power in the form of electricity, so as to realize all-weather, fully automatic, self-adaptive and complementary intelligent water supply and drip irrigation. the

The water supply and drip irrigation system of the present invention include a water pump, a power unit, a storage tank, and a controller. The storage tank includes an energy storage tank, and the power unit includes a wind energy power supply that provides power for the water pump. The water pump, the energy storage tank, Its corresponding water supply pipes are connected to each other through an automatic regulating valve, and the controller is an intelligent controller connected to the automatic regulating valve, the energy storage tank, and the water pump respectively, and the intelligent controller is based on wind force, water supply and drip irrigation Quantitatively control the running status of the energy storage tank and the water pump. the

The water supply pipe is provided with a water supply pressure or flow detector, the energy storage tank is provided with a pressure detector, the wind energy power supply is provided with a voltage or frequency detector, the pressure detector, water supply pressure or flow detector, and The voltage or frequency detectors are respectively connected to the intelligent controller through signal wires, and the working states of the water pump and the energy storage tank are controlled by the intelligent controller according to the water supply and drip irrigation pressure or flow detectors, pressure detectors, and wind energy power supply. The change in force is controlled by an automatic regulating valve. the

The energy storage tank is provided with one or several automatic regulating valves are respectively connected on the outlet of the water pump and/or the water supply pipe, and between several of the energy storage tanks and the water supply pipe; the intelligent controller is controlled by PLC The automatic regulating valve is an electric or pneumatic regulating valve, or a solenoid valve; the wind energy power supply is connected to the water pump motor through a power inverter, and the voltage or frequency detector is connected to the power inverter of the wind energy power supply output. the

A drip irrigation device and a domestic water supply device are respectively connected to the water supply pipe. the

The water supply and drip irrigation method of the present invention controls the size and presence or absence of the water supply of the water pump and the energy storage tank respectively according to the change of the wind force to the change of the electric quantity of the wind energy battery, and changes the wind energy from being stored in the form of a storage battery to being stored and utilized in the form of an energy storage tank. Realize all-weather, fully automatic, self-adaptive water supply and drip irrigation. The water supply and drip irrigation system constituted by the method of the present invention uses wind energy batteries as power, and at the same time, adopts an energy storage device to form a complementary intelligent water supply and drip irrigation system, which not only has high operating efficiency and low energy consumption, but also saves batteries and simplifies the system Composition, save investment, open up a new way of new energy utilization for rural areas, and open up a broader application prospect for towerless water supply and drip irrigation systems in vast rural areas. the

Description of drawings

Fig. 1 is a structural schematic diagram of the first embodiment of the water supply and drip irrigation system of the present invention. the

Detailed ways

The present invention will be further described through embodiment now in conjunction with accompanying drawing. the

The automatic water supply and drip irrigation method for wind power generation of the present invention is to supply water and drip irrigation in a complementary and intelligent manner, and use wind energy batteries to automatically control the operating states of water pumps and energy storage tanks according to changes in wind strength. The size of the output water supply of the weak water pump and whether there is any change controls the corresponding water supply and drip irrigation of the energy storage tank (by controlling the number of energy storage tanks or the opening of the water supply and drip irrigation valve), and makes the operation output of the water pump always close to The corresponding power of the wind energy battery. the

That is to say, the PLC controller is based on the wind strength and water supply (input signal) through the automatic regulating valve between the water pump, the energy storage tank, and the water supply and drip irrigation pipes. The water pump supplies water and drip irrigation through the energy storage tank, and at the same time supplements the energy of the energy storage tank. When the wind force is weak, the water pump and the energy storage tank jointly supply water and drip irrigation, and set the lower limit of the water pump operation. When the wind force is weak enough to make the water pump When the set value of the lower limit of operation is reached (when the frequency or voltage requirements for starting and running of the pump cannot be met), the water pump will stop working and the energy storage tank will supply water alone. the

The wind strength signal of the PLC controller is obtained by detecting the frequency or voltage of the power supply output by the wind energy battery by the voltage or frequency detector, and the water supply and drip irrigation volume signals are provided by the water supply, drip irrigation pressure or flow detector of the water supply pipe. the

Water supply of the present invention, drip irrigation system as shown in Figure 1, several energy storage tanks 3 outlets are respectively connected with the water supply pipe 10 of the system through electromagnetic valve 5, and each electromagnetic valve 5 is simultaneously as the inlet and outlet of each corresponding energy storage tank 3 Water outlet valve; the water supply pipe 10 is connected to the water supply outlet of the system with a solenoid valve 14, the outlet of the water pump 11 is connected to the solenoid valve 14 through the water supply pipe 10, and the solenoid valve 14 is used as the water outlet valve of the water pump 11, and can also be used as the main water supply valve of the system at the same time; Each energy storage tank 3 is respectively connected with a pressure detector 4, and the wind energy battery (wind energy power supply) 2 is connected to the motor 6 of the water pump 11 through the power inverter 7 to provide AC power for the water pump 11; the power inverter 7 (when the wind energy When the power supply is AC power frequency, then cancel the power inverter 7) The output end is connected with a power supply voltage or frequency detector 9, and the outlet of the water supply pipe 10 is connected with a water supply, drip irrigation pressure or flow detector 8; pressure detector 4, water supply The drip irrigation pressure or flow detector 8 and the power supply voltage or frequency detector 9 are respectively connected to the input end of the PLC controller 1 through a signal line, and a frequency converter 12 is connected between the motor 6 and the output end of the PLC controller 1; The solenoid valves 5 and 9 are respectively connected to the output end of the PLC controller 1 through a multi-way servo mechanism 13 through signal lines. the

The PLC controller 1 controls the operating speed of the motor 6 through the frequency converter 12 to make corresponding changes according to the change of the wind energy battery 2 with the wind strength, so that the output of the water pump 11 is always adapted to the wind strength; at the same time, the PLC controller 1 according to The output (supply amount) of the water pump 11 adjusts the number of energy storage tanks 3 put into operation (water supply and drip irrigation) through the solenoid valve 5 in good time to meet the required system water supply and drip irrigation volume and maintain the stability of the system water supply and drip irrigation. the

The PLC controller 1 is provided with a given value of the voltage or frequency lower limit for the operation of the motor 6. When the wind force is so weak that the power supply voltage or frequency supplied to the motor 6 by the wind energy battery 2 through the power inverter 7 is lower than the set lower limit of the motor 6 When setting the value, the PLC controller 1 outputs control signals to stop the operation of the water pump 11 and control the number of the energy storage tank 3 through the corresponding solenoid valve 5, so as to maintain the required water supply, drip irrigation pressure or flow. The water supply pressure or flow detector 8 can be connected to the inlet or outlet side of the water supply and drip irrigation solenoid valve 14 . The outlets of the water supply and drip irrigation solenoid valves 14 are respectively connected with a drip irrigation device 21 and a domestic water supply device 31 . Drip irrigation device 21 and domestic water supply device 31 are used as users of this system

When the wind force is strong and under the premise of ensuring normal water supply and drip irrigation, the PLC controller 1 controls the water pump 11 to The corresponding energy storage tank 3 is filled with water to replenish energy. The PLC controller 1 monitors the pressure of each energy storage tank 3 through each pressure detector 4 .

The water supply and drip irrigation system of the present invention is controlled and operated by a PLC controller 1 with program setting. The set value of running and stopping of the water pump 11 and the lower limit set value are respectively stored in the memory of the PLC controller 1, and are collected by the preset program of the PLC controller 1 as corresponding control parameters. the

Claims (4)

1. A kind of wind power generation automatic water supply, drip irrigation system, comprise water pump, power unit, storage tank, and controller, described storage tank comprises energy storage tank, and described power unit comprises the wind power supply that provides power for water pump, and described water pump , the energy storage tank, and the corresponding water supply pipes are connected to each other through an automatic regulating valve, and the controller is an intelligent controller connected to the automatic regulating valve, the energy storage tank, and the water pump respectively. and water supply and drip irrigation to control the operation status of the energy storage tank and water pump, It is characterized in that the water supply pipe is provided with a water supply pressure or flow detector, the energy storage tank is provided with a pressure detector, the wind energy power supply is provided with a voltage or frequency detector, and the pressure detector, water supply pressure or flow detection The detector, and the voltage or frequency detector are respectively connected to the intelligent controller through signal lines. 2. according to the described wind power generation automatic water supply of claim 1, drip irrigation system, it is characterized in that the working state of described water pump and energy storage tank is by intelligent controller according to water supply and drip irrigation pressure or flow detector, pressure detector and wind energy power supply The change with the wind force is controlled by an automatic regulating valve. 3. According to claim 1 or 2, the automatic water supply and drip irrigation system for wind power generation is characterized in that the energy storage tank is provided with one or several, the water pump outlet and/or the water supply pipe, and several of the energy storage tanks An automatic regulating valve is respectively connected between the tank and the water supply pipe; the intelligent controller is a PLC controller; the automatic regulating valve is an electric or pneumatic regulating valve, or a solenoid valve; the wind energy power supply is passed through a power inverter It is connected to the water pump motor, and the voltage or frequency detector is connected to the output end of the power inverter of the wind energy power supply. 4. The automatic water supply and drip irrigation system for wind power generation according to claim 1 or 2, characterized in that drip irrigation devices and domestic water supply devices are respectively connected to the water supply pipes.

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