Automated irrigation system equipped with low pressure rotating sprinklers

FIELD: agriculture.

SUBSTANCE: automated irrigation system equipped with low pressure rotating sprinklers consists of hydraulic pumping station, containing turbine connected with a shaft of high and low pressure pumps. The central control board is connected with automatic weather station, metre, placed on the low pressure supply pipeline of irrigation system, and winding of commutating three-way valve, the inlet of which is connected with the outlet of the high pressure pump, and the outlet with the inlet of the high pressure supply pipeline. The outlets of the high pressure supply pipeline are connected with the inlet of the first tree-way valve of the control systems and hydraulic protection of sprinklers from failures, the drive of which is connected with a plunger of ratchet gear, and diaphragm actuator of which is connected with high pressure supply pipeline. The outlet of the first three-way valve is connected through throttle with diaphragm actuator of double throw switch, interacting with the drive of the second three-way valve, the inlet of which is connected with high pressure supply pipeline, and the outlet is connected with feed line of hydraulic drive of the sprinkler and line of hydraulic protection of the sprinkle from failures through the cut-off valve. The outlet of the line of hydraulic protection is connected with the diaphragm actuator of the cut-off valve and diaphragm actuator of hydrorelay controlling hydraulic drive gate valve, placed on the inlet of the sprinkler. The outlet of the feed line of hydraulic drive is connected with through three-way valve with end pulse sprinkler, and the drive of the third three-way valve is connected with on-off mechanism connecting pulse sprinkler with the feed line of hydraulic drives, which contacts with the sensors of the beginning and the end of sprinklers passing the corner sector.

EFFECT: invention allows simplifying automated control system, increasing quality of irrigation.

1 dwg

 

The invention relates to agriculture and can be used for irrigation of agricultural crops in the low-pressure sprinkler machines circular actions.

Known automated low-pressure irrigation system with hydraulic pump station containing a turbine connected to the shaft of a low pressure pump, a supply line connected to the sprinkler machines, which are equipped with a high-pressure pump connected to the hydraulic line protection sprinkler from accidents and the supply line of the hydraulic low-pressure sprinkler circular actions. The Central control unit (CPU) of the system is connected by electric lines connecting with the remote control (GTP) by the operation of low-pressure sprinkler. (Patent for invention №603 KG, MKI A01G 25/09. - Publ. 31.11.2002. - Bull. No. 11.)

The disadvantage of this system is the complexity of the control system, requiring highly skilled personnel, the presence of an additional electric lines of communication of the CPU with the PU sprinkling machines, the presence of irrigation sites "corners" and "diamonds", not pour low-pressure sprinkler machine (EBM) circular steps, low quality irrigation DM due to the lack of controls according to the automatic weather station.

Technical resultcontainer of the invention is the simplification of the system control the operation of low-pressure sprinkler machines, improving the efficiency of irrigation systems and the quality of irrigation and the provision of opportunities in the irrigated areas of low-pressure irrigation DM circular actions "corners" and "diamonds".

The claimed technical result is achieved by an automated irrigation system with low-pressure sprinkler machines, circular steps, including hydraulic pumping station having a turbine shaft connected with the shaft of the high-pressure and low-pressure pumps, contains a Central control unit, connected to an automatic weather station, flow meter installed on the low-pressure inlet line (irrigation network, and the winding of the switching three-way valve.

The input switching three-way valve connected to the output of the high-pressure pump, and the output to the input of the high-pressure inlet pipeline. The outputs of the high-pressure supply pipe connected to the inlet of the first three-way valve control systems and hydraulic protection sprinkler machines from accidents, the actuator which is connected with the plunger ratchet mechanism, the membrane actuator which is connected to the high pressure supply line.

The output of the first three-way valve through a throttle connected to the diaphragm actuator dip switch that interacts with the actuator of the second t is ghodasara valve, an input connected to the high pressure supply line and the outlet through the valve from the supply line to the sprinkler hydraulic machines and hydraulic line protection sprinkler from accidents.

The output line of the hydraulic protection connected with diaphragm actuator shut-off valve and diaphragm actuator, hydrocele control hydraulic valves installed at the entrance of the pivot. The output supply line hydraulic actuators connected through the third three-way valve with limit impulse sprinkler apparatus, and the drive of the third three-way valve is connected with an on / off mechanism connecting impulse sprinkler apparatus to the supply line of the hydraulic actuators, which interacts with the sensors at the beginning and end of the passage sprinkling machine "corner" of the sector.

The system improves the quality of irrigation and the coefficient of land use in low-pressure irrigation by sprinkling circular steps with hydraulic drives.

The drawing shows a diagram of the automated irrigation system with low-pressure sprinkler machines circular actions.

The system contains a source of irrigation 1 installed and dam 2, creating a drop in water levels (upper and lower reach) source of irrigation 1. Hydraulic pump station 3 contains the turbine was the 4, the entrance of which is connected with the upper tail, and the output from the lower downstream. Turbine 4 connected to the shaft with high-pressure pump 5, the low-pressure pump 6 and the generator 7. The output of the low-pressure pump 6 is connected via a flow meter 8 with low-pressure supply line 9 irrigation network, which through the valve 10 with a hydraulic actuator connected to the pivot (DM) 11 circular actions. The output of the high-pressure pump 5 is connected through the switching three-way valve 12 with the high-pressure supply line 13 irrigation network. The winding of the switching three-way valve 12 is connected to the output of the Central control unit (CPU) 14. The inputs of the CPU 14 is connected to the output of the automatic weather station 15, a constant current generator 7 and the flow meter 8. The CPU 14 includes a controller, a battery, an electronic switching keys. On sprinkling machines (EBM) 11 to the high pressure inlet pipe 13 is connected to the input of the first three-way valve 16 of the control system and hydraulic protection sprinkler from accidents, the actuator which interacts with the plunger 17 ratcheting mechanism 18. Ratchet mechanism 18 is switched diaphragm actuator 19 which is connected with the high pressure supply line 13. The output of the first three-way valve 16 is connected through a throttle 20 with diaphragm actuator 21 dip what about the switch 22 of the second three-way valve 23, an input connected to the high pressure supply line 13, and the output - input shutoff valve 24 mounted on the input power 25 hydraulic actuators 26 of the support trucks pivot 11. The hydraulic cylinders 26 are connected with the supply line through the valve-valve 27. The dip switch mechanism 22 is similar to, for example, on-off switching mechanism of a ballpoint pen, pressing of which causes extension and retraction of the rod. The output of the second three-way valve 23 is connected with line 28 hydronamic DM from accidents. Line 28 hydronamic DM from accidents contains Executive valves 29 mounted on each support carriage and driven from copiers installed on the pendulum regulator speed reference trucks DM 11. The output line 28 hydronamic DM from accidents connected with diaphragm actuator, hydrocele 30 control hydraulic valves 10 and diaphragm actuator shut-off valve 24. At the leading anchor trolley output supply line 25 hydraulic actuators connected through the valve-unit 31 speed DM, the valve of the distributor 27 to the hydraulic actuator 26 leading the support truck and the entrance to the third three-way valve 32, the output of which is connected with an end pulse sprinkler apparatus 33 with hidropneumoacumulatorul 34, the membrane 35 which is connected with dumpsec the traditional mechanism 36 of the switching valve 37 end sprinkler apparatus 33, mounted on the end of the water conveyance belt DM. Drive three-way valve 32 is connected with the mechanism 38 connect impulse sprinkler apparatus 33 to the supply line of the hydraulic actuator 25 that communicates with the sensors 39 and the beginning of the end 40 of the passage of the DM sector, you are watering the "corners".

Automated irrigation system with low-pressure sprinkler machines circular steps is as follows.

Before the beginning of the growing season operator sets on cranes-setting device 31 of the speed of sprinkling machines, the CPU 14 will say sprinkling machines that will pour the relevant areas, the initial water content in the soil in the irrigated areas, biological factors irrigated crops and their irrigation.

During the growing period of the automatic weather station 15 calculates potential evapotranspiration of crops cultivated and transmits these readings of the CPU 14, which calculates evapotranspiration grown in the irrigated areas of agricultural crops. When reducing the calculated water content in the soil in the irrigated areas to the lower threshold of the optimum soil moisture, the CPU 14 sends a signal about the beginning of irrigation.

The operator engages the turbine 4, to the which rotates in the low-pressure pump 6, high-pressure pump 5, the generator 7 and then switches the CPU 14 in the automatic mode. The CPU 14 generates a package of short voltage pulses and pulse with more duration on the inclusion of DM, which serves to drive the three-way valve 12. The number of the pulse of long duration corresponds to the number of the first selected sprinkler (selected first irrigated land).

When applying voltage pulses to the coil of a three-way valve 12 switches and generates a pause interrupts the supply of high pressure water in the high pressure pipe 13. At each pause in the work management systems and hydraulic protection against accidents sprinkling machines 11 diaphragm actuator 19 switches the ratchet mechanism 17 one step. While long pause interrupts the supply water pressure in the high pressure pipe 13 to the selected pivot the pusher 18 ratcheting mechanism 17 off the first three-way valve 16 for a time sufficient for flushing water from the membrane actuator 21 through the orifice 20 and the first three-way valve 16. When this diaphragm actuator acts on the dip switch 22, which includes a second three-way valve 23, through which the water from the high pressure pipe 13 is fed into the line hydronamic 28 DM from accidents and power line 25 hydraulic actuators 26 sprinkling the machine.

With proper pivot Executive valves 29 line hydronamic 28 DM from accidents are closed, and the pressure of water supplied to the membrane actuator shut-off valve 24 and diaphragm actuator, hydrocele 30. The shutoff valve 24 is opened and water is supplied to the power line 25 hydraulic actuators 26. Sprinkling machine 11 starts to move.

At the same time, hydrocele 30 switches the hydraulic valve 10 at the input of the pivot opening. The valve 10 is opened, and water is fed into the feeding zone of the pivot 11. Sprinkling machine begins to water. Thus, the CPU 14 monitors the readings of the flow meter 8, the increase of water flow in low-pressure pipe 9 and secures the inclusion of the pivot.

At the approach to the "corner" sector, which also is watering the "corners"that are not captured by sprinkling machine, the sensor 39 can start to work through DM angular sector impact mechanism 38 connect impulse sprinkler apparatus 33 to the supply line of the hydraulic actuator 25, which includes a third three-way valve 32. The water from the supply line 25 of the hydraulic actuators is fed into the upper cavity hydropneumoaccumulator 34, the lower cavity which is filled with compressed air. After filling with water the upper cavity hydropneumoaccumulator his diaphragm 34 35 affects the dip is echanism switch 36, which opens the valve 37, and sprinkler unit 33 under the action of the energy of compressed air generates a pulse irrigation. After that, the membrane affects the two-position switching mechanism 36, which closes the valve 37, and the process of accumulation of water in hydropneumoaccumulator repeats, etc.

After passing through the angular sector sensor 40 interacts with the mechanism 38, which turns off the third three-way valve 32, the flow of water in impulse sprinkler apparatus 33 and watering "angle" stops and sprinkling machine continues watering of the site in normal mode.

In case of emergency (invalid bending water conveyance belt sprinkler) on the failed anchor trolley offers Executive valve 29, the water pressure in the line 28 hydronamic falls, shut-off valve 24 is closed, the water supply to the hydraulic actuators 26 and further bending water conveyance belt pivot stops. Hydrocele 30 switches the drive of the valve 10 to close the flow of water in water conveyance belt is stopped. The water flow in low-pressure pipe 9 is reduced, the CPU 14 detects the change of the readings of the flow meter 8 off sprinkler and gives an alarm to the operators who are going to repair the DM, and the CPU 14 at this time connects to stabilize R the vanishing water backup DM.

For inclusion in the next sprinkler CPU 14 calculates and submits the following package pulses with one pulse of long duration, the number of which corresponds to the number of the selected sprinkler, or the pulse of long duration, if DM connected serially to each other.

After issuance of irrigation on the plot (with the passage of DM circle irrigation and mining of time watering) CPU reapplies for the selected DM 11 in the high-pressure piping package pulses to interrupt the supply of pressure water. Reenabling the switching device 22 turns off the second three-way valve 23. Water supply in line hydronamic 28 from accidents and power line 25 of the hydraulic actuator 26 is terminated, sprinkling machine 11 stops, watering is stopped.

Automated irrigation system with low-pressure sprinkler machines circular action allows you to provide automated management of irrigation system by means of hydraulic automation to increase the efficiency of irrigation systems and the quality of irrigation through the use of for watering control automatic weather stations, to provide irrigation "corners"that are not captured by the low-pressure sprinkler machines, circular steps, i.e. to increase the coefficient of land use irrigated plots.

Automates the automated irrigation system with low-pressure sprinkler machines, circular steps, includes a Central control unit, hydraulic pump station, containing a turbine connected to the shaft of a low pressure pump, low-pressure supply line connected to the sprinkler machines, characterized in that the Central control unit is connected with an automatic weather station, flow meter installed on the low-pressure inlet line (irrigation network, and the winding of the switching three-way valve, the inlet of which is connected to the output of the high-pressure pump connected to the shaft with the turbine and the output to the input of the high-pressure supply line, the outputs of which are connected to the input of the first three-way valve control systems and hydraulic protection sprinkler machines from accidents, the actuator which is associated with the pusher ratcheting mechanism, the membrane actuator which is connected to the high pressure supply line, the output of the first three-way valve is connected through an inductor with a diaphragm actuator dip switch associated with the actuator of the second three-way valve, the inlet of which is connected to the high pressure supply line and the outlet through the valve from the supply line to the sprinkler hydraulic machines and hydraulic line protection sprinkler from accidents, the output of which is connected to the membrane at the Odom shut-off valve and diaphragm actuator, hydrocele control hydraulic valves, installed at the entrance of the pivot, the output supply line hydraulic actuators connected through the third three-way valve with limit impulse sprinkler apparatus, and the drive of the third three-way valve is connected with an on / off mechanism connecting impulse sprinkler apparatus to the supply line of the hydraulic actuators that interact with sensors at the beginning and end of the passage sprinkling machine angular sector.



 

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