Apparatus for automatic controlling of water flow rate supplied by pump-and-power unit

FIELD: agriculture, in particular, irrigation systems, more particular, controlling of water flows supplied into upstream of open irrigation system.

SUBSTANCE: apparatus has upper, lower and minimum level sensors made in the form of hermetic contacts mounted on floats, in upstream water-intake construction, within hollow sleeves cooperating with magnets immovably fixed on sleeves. Hermetic contact of upper level sensor is connected to power unit through time delay relay, receiving-transmitting unit connected to unit for controlling of electric engine of downstream pump-and-power unit, control unit for main electric hydraulic relay and in parallel with end switch mounted on hydraulic drive of locking apparatus engageable with stop positioned on hydraulic drive stem in upper position of pump. Hermetic contact of lower level sensor is connected to power unit through time delay relay, receiving-transmitting unit, unit for controlling electric engine of downstream pump-and-power unit, control unit of additional electric hydraulic relay and in parallel with second end switch also mounted on hydraulic drive of locking apparatus and engageable with said stop in lower position of pump. Hermetic contact of minimum level sensor is connected to power unit and unit for controlling electric engine of upstream pump-and-power unit.

EFFECT: increased efficiency by providing automatic controlling of water flow rate supplied to upstream of open irrigation system.

1 dwg

 

The invention relates to agriculture, namely, irrigation systems, and can be used to regulate the supply water flow in the upstream face of the open irrigation system.

A device to eliminate pulsation phenomena, including the pump installed in the intake chamber, provided with a bypass pipe connecting the output (pressure) piping suction piping Tangenziale (A.S. 156420, CL A01G 25/09, similar).

The disadvantage of this device is the lack of automatic regulation of the feed water flow when changing the mode of water use upstream of the open irrigation system.

Know another device to automatically maintain the pressure in a closed irrigation system, including a pump and power unit with control unit, the suction is placed in the intake chamber and the discharge piping connecting Tangenziale bypass pipeline through a locking device with hydraulic drive, divided into upper and lower cavity through a piston fixed to the piston rod of the hydraulic actuator, managed electrohydraulic through the unit time delay, the reed contact and the magnet attached to the stem, managing and Executive blocks electrohydraulic, additional electrohydraulic, the IV is in a block which is connected with the upper cavity of the hydraulic actuator, this Executive unit main electrohydraulic connected with the lower cavity of the hydraulic drive and control unit additional electrohydraulic connected to the power source through the lower limit of the electric contact pressure gauge and relay time delay control block main electrohydraulic connected to the power source through the upper limit electroconductor gauge and relay time delay, and the electric contact pressure gauge is installed in the delivery pipe of a pump and power unit, besides the reed contact interacts with the magnet in the top of stroke position of the hydraulic valve body and serially included in the circuit of the electric-contact pressure gauge upper limit and control unit, pump and power unit.

The disadvantage of this device is the lack of opportunities to supply automatic control of water flow by changing the mode of water upstream of the open irrigation system.

The technical problem of the invention is to automate the process of controlling the water flow in the upstream face of the open irrigation system.

This object is achieved in that the device is fitted with upper, lower and lowest levels, made in the form of reed contacts mounted on floats and RA is displaced upstream of the diversion structure, inside the hollow glasses, interacting with magnets fixedly mounted on the glasses, with the reed contact of the upper level sensor associated with the power source through the relay time delay unit receiving the transmission control unit motor pump and power unit downstream, control unit main electrohydraulic and in parallel with the limit switch, mounted on the hydraulic valve body interacting with emphasis placed on the rod of the hydraulic actuator in the upper position of the piston, and the reed contact of the lower level sensor to the power supply through the relay time delay unit of the transmission / reception control unit motor pump and power unit downstream, the managing unit additional electrohydraulic and in parallel with the second limit switch mounted also on the hydraulic valve body and cooperating with the stop in the bottom position of the piston, in addition, the reed contact sensor minimum level is connected to the power source, the control unit of the motor pump of the power unit of the upstream.

Thanks to the supply of the upstream sensors of the upper and lower level and their connection with the power source through the relay time delay unit receiving the transmission control unit of the electric motor is elem pumping unit downstream and control units, primary and secondary, electrohydraulic creates the possibility of controlling the supply flow rate of the water level in the intake structure of the upstream, depending on the changing water separation, which cannot be done either in the analog or in the prototype. In addition, the placement of the sensors in the intake construction of the headrace channel will significantly increase the performance of the automation system at the expense of operational control over the level changes directly in the intake structure and the instantaneous signal transmission to the change in feed consumption. This will allow you to create optimal water supply, linked to the water intake upstream that will significantly reduce energy costs for uninterrupted water supply facilities with the necessary amount of water.

The implementation of level sensors in the form of a reed contact mounted on floats and placed upstream of the diversion structure, hollow cups, interacting with magnets fixedly mounted on the glasses, and the relationship of reed contact sensor upper level with the power source through the relay time delay unit receiving the transmission control unit motor pump and power unit downstream and control unit main electrohydraulic, and connectivity reed contact sensor bottom level with the power source through the relay time delay unit of the transmission / reception control unit motor pump of the power unit is inego of water with a control unit additional electrohydraulic not only provides a set of distinctive features is not known either in analogue neither in the prototype, but will allow you to purchase a new positive effect automatic regulation of the flow rate of a pump and power unit on the water level in the construction of the headrace channel, while ensuring the performance of work and eliminating errors that occur when the wave process from the wind on the water surface by placing sensors in a hollow glasses.

Supply device and a limit switch mounted on the hydraulic valve body interacting with emphasis placed on the rod of the hydraulic actuator, in the lower position and the connection of the limit switch in the upper position with the control motor, pumping unit downstream and upper level sensor and the delivery device, the second limit switch mounted on the hydraulic valve body and cooperating with the stop in the bottom position of the piston and its connection with the control unit motor pump and power unit downstream and lower level sensor, provides not only the disconnection of the motor pump of the power unit in the absence of water intake upstream, but the production of a signal in the control unit and the inclusion of an additional pump and power unit in operation when there is insufficient water in one unit of the upstream. This distinctive the sign is also not known either in analogue neither in the prototype.

Supply device sensor minimum level established upstream of the diversion structure, and connectivity reed contact with the power source, the control unit of the motor pump of the power unit of the headrace channel will help in moments of lack of water supply of downstream unmount the pump and power unit, which eliminates sucking air and the occurrence of cavitation processes, leading to deterioration of the equipment. These distinctive properties and created this positive effect is impossible in the analog or in the prototype.

The drawing shows a schematic diagram of the proposed device for automatic regulation of the feed flow water pump and power unit.

Device for automatic regulation of the feed water flow pumping unit includes a water intake upper 1 and lower 2 pounds with pumping units and control units 3, 4, 5 and the suction pressure 6 pipelines pumping unit downstream 2 connecting Tangenziale-bypass 7 pipeline through the gate device 8 with the hydraulic actuator 9, divided into upper and lower cavities by means of the piston 10 mounted on the rod 11 of the hydraulic actuator 9 is controlled primary 12 and an additional 13 electro is ikorel, connected to the upper and lower cavities of the hydraulic actuator 9 and equipped with a control 14, 15 blocks, sensors, top 16, bottom 17 and a minimum of 18 levels, made in the form of reed contacts 19, 20, 21 mounted on the floats 22, 23, 24 and placed upstream of the 1 intake structure, hollow cups 25, 26, 27, interacting with the magnets 28, 29, 30, still attached to the cups 25, 26, 27, with reed contact sensor 16 19 top level associated with the power source through the relay time delay 31, the block of reception and transmission 32 to the control unit 4 by an electric motor, pumping unit downstream 2, control unit 14 of the main electrohydraulic 12 and in parallel with the limit switch 33 mounted on the hydraulic actuator 9 locking device 8, which interacts with the stop 34, mounted on a shaft 11 of the hydraulic actuator 9, in the upper position of the piston 10, and the reed contact 20 of the sensor 17 of the lower level with the power source through the relay time delay 35, block acceptance 32, the control unit 4 by an electric motor, pumping unit downstream 2, control unit 15 additional electrohydraulic 13 and in parallel with the second limit switch 36 mounted also on the hydraulic actuator 9 locking device 8 and cooperating with the stop 34 in the lower position of the piston 10, kromerowo reed contact 21 of the sensor minimum 18 is connected to the power source, the control unit 3 of the motor pump of the power unit of the upstream 1.

Device for automatic regulation of the feed water pump and power unit operates as follows.

The rise of water in the intake structure of the headrace channel 1 to the upper level leads to the triggering of the sensor 16 of the upper level, which is caused by movement of the float 22 with reed contact 19 in the hollow glass 25 up and at the level specified by the magnet 28 (upper level) is the closure of reed contact 19. This provides for the grant of a pulse through relay time delay 31, outstanding intermittent (periodic) pulse to the block of reception and transmission 32, which in turn transmits it to the control unit 4 downstream 2. The control unit 4 performs the issuance of the pulse in the control unit 14 of the main electrohydraulic 12 at the opening of the locking device 8 by means of the hydraulic actuator 9 and the connection of the inlet 5 and outlet 6 of the pipelines. This provides a partial discharge water flow from the discharge pipe 6 into the suction pipe 5, which reduces feed consumption, water intake in the construction of the headrace channel 1. In case of insufficient opening of the locking device 8 (reduction of flow rate) time relay 31 generates a repeated pulse to the block of reception and transmission 32, the control unit 4 and a control unit 14 osnovnoj is electrohydraulic 12, that provides a further opening of the locking device 8 and an even bigger decrease in feed consumption pumping unit downstream 2. Discrete opening of the locking device 8 is carried out up until the level upstream of the diversion structure 1 will not fall below the upper limit, or when reaching the piston 10 with the rod 11 to the upper position when the stop 34, mounted on a shaft 11 of the hydraulic actuator 9, affecting limit switch 33 causes it. As a result, the pulse from the timer 31 is fed through a limit switch 33 to the control unit 4 pump and power unit downstream 2, causing the stop of the motor, pump and power unit downstream 2. Water flow in the upstream water intake structure 1 is stopped, which stops the growth of the water level upstream.

Falling water intake construction of the headrace channel 1 to the lower level leads to the triggering of the sensor 17 of the lower level, which is caused by movement of the float 23 with reed contact 20 in the hollow glass 26 down and at the level specified by the magnet 29 (lower level), leads to the closure of reed contact 20.

This provides for the grant of a pulse through a time relay 35, outstanding intermittent (periodic) pulse in the reception unit of the transmission 32, which in turn passes it to the block of the control 4 downstream 2.

The control unit 4 performs the issuance of the pulse in the control unit 15 additional electrohydraulic 13 for closing the shut-off device 8 by means of the hydraulic actuator 9. This provides a reduction of the partial discharge water flow from the discharge pipe 6 into the suction pipe 5, which increases feed consumption, water intake in the construction of the headrace channel 1. Insufficient closure of the shut-off device 8 time relay 35 generates a repeated pulse to the complete closing of the shut-off device 8. In case of failure of lifting water intake construction of the headrace channel 1, above the lower level, the impact of the stop 34 in the lower position of the piston 10 (full closing of the locking device 8) to the second limit switch 36 mounted on the hydraulic actuator 9 locking device 8, is the circuit closing and delivery of the pulse to activate the second pump and power unit.

A drop of water in the intake structure of the upstream to the lowest level trigger sensor 18 minimum level, which is caused by movement of the float 24 with reed contact 21 in the hollow glass down 27 and at the level (minimum level) magnet 30 causes the closure of reed contact 21. It provides for the issuing of momentum in the control unit 3 of the motor pump of the power unit top is iefa 1 to stop the motor.

The introduction of the proposed device for automatic regulation of the feed flow water pump and power unit at the irrigation systems will reduce operating costs by 5-10%, reduce energy consumption on the supply of water for 8-12% by creating optimal water supply that are aligned with the intake structure of the upstream.

Device for automatic regulation of the feed flow water pump and power unit, including intakes of the upper and lower pools with pumping units and control units, suction and discharge piping to the pump and power unit downstream connecting Tangenziale bypass pipeline through a locking device with hydraulic drive, divided into upper and lower cavity through a piston fixed to the piston rod of the hydraulic actuator, managed primary and secondary, electrohydraulic connected to the upper and lower cavities of the hydraulic and air control units, relays time delay, the reed contact and the magnet, characterized in that the device is fitted with upper, lower and minimum levels, made in the form of reed contacts mounted on floats and placed upstream of the diversion structure, hollow cups, collaboration is relevant with magnets fixedly mounted on the glasses, when the reed contact of the upper level sensor associated with the power source through the relay time delay unit receiving the transmission control unit motor pump and power unit downstream, control unit main electrohydraulic and in parallel with the limit switch, mounted on the hydraulic locking device interacting with emphasis placed on the rod of the hydraulic actuator in the upper position of the piston, and the reed contact of the lower level sensor to the power supply through the relay time delay unit of the transmission / reception control unit motor pump and power unit downstream, control unit additional electrohydraulic and in parallel with the second limit switch mounted also on the hydraulic locking device and interacting with the stop in the bottom position of the piston, in addition, the reed contact sensor minimum level is connected to the power source, the control unit of the motor pump of the power unit of the upstream.



 

Same patents:

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