• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A device for the automatic and pulsed delivery of an irrigation liquid, which can be connected, at its upstream side, to a source liquid under a constant or substantially constant pressure, and at its downstream side, to a distribution network equipped with pressure-responding valves. These valves are capable of closing, during the step charging of the distribution system, at a pressure equal to, or substantially equal to, the liquid feed pressure, and of opening, during irrigation liquid expelling, when the pressure decreases under said value. The device comprises a Venturi device, fed with the same irrigation liquid, from whose region of constricted stream a duct is branched off, to transmit to a sliding member depressure generated by the Venturi. As a function of such a depressure, a sliding member reciprocatingly shifts between a position of opening of the irrigation liquid delivery port, and a position of closure of said port and of simultaneous or subsequent venting towards the atmosphere, so as to cause a pressure drop and the explusion of the irrgation liquid from the distribution network, and the beginning again of the cycle. An irrigation facility incorporating this device is connected to a distribution network equipped with a plurality of pressure-responding valves, each one of which is provided with a delivery nozzle.
    公开号:SU1662335A3
    申请号:SU884356750
    申请日:1988-10-28
    公开日:1991-07-07
    发明作者:Бароссо Эмилио；Риви Альдино
    申请人:Эникем Агриколтура С.П.А. (Фирма)；
    IPC主号:
    专利说明:

    fig /
    The invention relates to agriculture and can be used for pulsed irrigation of agricultural crops.
    The aim of the invention is to increase the reliability of the system.
    FIG. 1 shows a diagram of the irrigation system; in fig. 2 - a device for software control of water supply in a certain sequence to a group of irrigation pipelines; in fig. 3 and 4 - water outlet, respectively, with a closed and open elastic valve; in fig. 5 is a diagram of the irrigation system with parallel connection of two groups of irrigation pipes.
    The irrigation system consists of a main pipeline 1 and a group of elastic irrigation pipes 2, connected in series through water outlets 3. Each water outlet 3 consists of a body 4 with a horizontal inlet 5 and a bis outlet with a vertical water outlet 7. In case A, a vertically elastic valve 8 is installed water outlet 3. The valve 8 is made in the form of a piston 9 with a guide 10 of a cylindrical valve 11 with an axial bore 12. Between the main pipeline 1 and a group of elastic pipelines 2, a software control unit is installed for supplying water in a specific sequence to a group of irrigation pipes 2. The software control unit consists of a Venturi nozzle 13 and a locking member 14 with a membrane 15. The Venturi nozzle 13 has an inlet 16, an outlet 17 and a constricted part 18, hydraulically associated with the supermembrane cavity 19 through the channel 20. The locking member 14 consists of a housing 21 with an axial inlet 22 and an outlet 23, a stem 24, a valve 25, a control valve 26 with a switch. The switch is made in the form of a membrane 27 installed inside the axial bore 28 of the stem 24 with the ability to overlap the saddle 29 of the drain nipple 30 of the control valve 26 and form an internal cavity 31 hydraulically connected with a narrowed part 18 of the Venturi nozzle 13. In the housing 21 with submembrane The cavity 32 under the valve 25 is provided with an additional membrane 33 with the formation of an additional sub-membrane cavity 34 above the inlet 22 and outlet 23 and the possibility of their blocking. The output 23 is located parallel to the axial inlet22. The membrane 15 is fixed in the sleeve 35. The drain pipe 30 is made in the form of a screw with an axial hole 36 and is installed
    in the housing 21 from the side of the supramembrane cavity 19 coaxially with the rod 24.
    Irrigation system works as follows.
    Water from the pressurizing device is supplied to the main pipeline 1 and through the inlet 22, the cavity 34 and the outlet 23 enters the Venturi nozzle 13. The membrane 33 is in the upper position. When water flows through the venturi nozzle 13, a negative pressure is created in its constricted part 18, which is transmitted to the cavity 19.
    From the outlet 17 of the Venturi nozzle 13, the water enters the irrigation pipes 2 and acts on the piston 9 of the first outlet 3. The piston 9 moves the cylindrical valve 11 down and compresses it. The piston 9 opens the inlet 5, and the damper 11 closes the outlet nozzle 7, after which the water enters the next irrigation pipeline 2 and the outlet 3. The process of their operation repeats similarly to the first pipeline 2 and its outlet 3 until the last irrigation pipeline 2 is filled.
    When the whole group of irrigation pipelines 2 is filled, the pressure in the constricted portion 18 of the Venturi nozzle 13 rises and the pressure increase is transferred to the supramembrane cavity 19, the membrane 15 with the stem 24 and the valve 25 descends. The valve 25 acts on the membrane 33, closes the inlet 22 and the outlet 32. When the stem 24 is lowered, the membrane 27 is detached from the seat 29, and water from the cavity 19 is discharged through the axial hole 36 to the atmosphere. In this case, the water is drained into the atmosphere only from the first irrigation pipeline.
    When water is drained, the pressure before the first water outlet decreases and the piston 9 closes its inlet 5, and the valve 11 opens the water outlet nozzle 7, and water from the subsequent irrigation pipe 2 begins to flow for irrigation through the water outlet nozzle 7. This continues until the entire irrigation group Pipelines will not empty. Making the irrigation pipes 2 elastic contributes to an increase in the volume of water leaving irrigation water outlets 3, i.e. elastic pipelines 2 are a kind of battery.
    When the irrigation pipelines 2 are empty, the pressure in the narrowed part 18 of the Venturi nozzle 13 drops and, accordingly, the pressure drops in cavity 19. The membrane 15 with the stem 24 and valve 25 rises until the membrane 27 closes the saddle 29. The membrane 33 opens the inlet 22 and exit 23 and water enters the venturi nozzle
    权利要求:
    Claims (4)
    [1]
    13, and the filling cycle of the system is repeated. The time and volume of emptying the system is regulated by the degree of screwing in the drain pipe 30. The irrigation system may have several groups of irrigation pipes connected in parallel. Claims 1. An irrigation system comprising a main pipeline, a group of irrigation pipelines, successively connected to each other through outlets with bodies, elastic valves, inlets, outlets and water outlets, installed between the main pipeline and a group of irrigation pipelines nor by supplying water in a certain sequence to a group of irrigation pipelines with a venturi nozzle with an inlet, outlet, and a constricted part, a diaphragm cavity of a closure member having a housing, an axial inlet, an outlet, a stem and a valve, and a control valve with a switch, a seat and a drainage nozzle communicated with the atmosphere, characterized in that the closure member is provided with an additional membrane , the stem on the side of the main supramembrane cavity of the closure member has an axial bore, and the control valve switch is made in the form of a membrane, while
    the gate valve outlet is located parallel to its entrance, an additional membrane is installed in the main submembrane cavity under the valve of the gate valve with the formation of an additional submembrane cavity above the gate inlet and outlet and the valve can be closed, the switch membrane is installed inside the axial hole of the stem with the possibility of blocking the valve seat control and formation of an internal cavity hydraulically connected to the constricted portion of the venturi nozzle.
    [2]
    2. The system according to claim 1, characterized in that the drain nipple of the control valve is designed as a screw with an axial hole, and is installed in the body of the closure member on the side of the permembrane cavity coaxially with the stem.
    [3]
    3. The system according to claim 1, characterized in that the elastic outlet valve is designed as a piston with a guide and cylindrical valve with an axial bore, while the elastic valve is installed vertically in the outlet outlet, the outlet of which is horizontal, and the outlet outlet is vertically.
    [4]
    4. System pop. 1, characterized in that the irrigation pipes are elastic.
    26
    -GUT
    17
    13
    33 15 V
    Rig.2
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    同族专利:
    公开号 | 公开日
    BR8805783A|1989-08-01|
    IN171927B|1993-02-06|
    AU609886B2|1991-05-09|
    JPH01148129A|1989-06-09|
    IL88123D0|1989-06-30|
    US4900189A|1990-02-13|
    PT88888A|1989-09-14|
    PT88888B|1993-12-31|
    NZ226431A|1990-09-26|
    IT1223015B|1990-09-12|
    MA21417A1|1989-07-01|
    IT8722449D0|1987-10-29|
    CN1057081A|1991-12-18|
    GR1000834B|1993-01-25|
    CN1033731A|1989-07-12|
    AU2399188A|1989-05-04|
    ES2012901A6|1990-04-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1685205A|1924-12-17|1928-09-25|Gen Zeolite Company|Rate of flow controller|
    US3053461A|1959-11-12|1962-09-11|Bruce D Inglis|Pressure controlled spray device|
    US3739952A|1971-07-09|1973-06-19|Gillette Co|Intermittent dispensing device|
    SU496022A1|1974-07-01|1975-12-25|Казахский Научно-Исследовательский Институт Водного Хозяйства|Command pulse generator for closed irrigation systems|
    IL45205A|1974-07-05|1976-09-30|District Council Of Eylot Regi|System for dispensing quantities of water at predetermined time intervals|
    IT1061205B|1976-12-30|1983-02-08|Fiat Spa|SELF-PILOTED IRRIGATION SYSTEM|
    AU4241078A|1978-12-12|1980-06-19|Stan W|Automatic irrigation system control valve assembly|
    US4291836A|1979-10-23|1981-09-29|Chen Hsiung Wu|Intermittent water-supply system|US4987915A|1987-12-28|1991-01-29|Aaron Goldsmith|Automatic water control apparatus|
    US5037238A|1990-08-13|1991-08-06|Wait Thomas R|Process for raising sunken sprinkler heads|
    US5249745A|1991-09-19|1993-10-05|Giacomo Bertolotti|Fluid distribution system|
    IT1251938B|1991-10-17|1995-05-27|Enichem Agricoltura Spa|DEVICE FOR PULSED DISPENSING OF AN IRRIGATION LIQUID AND IRRIGATION SYSTEMS THAT INCORPORATE THE DEVICE|
    IT1252631B|1991-12-04|1995-06-19|Enichem Agricoltura Spa|BY-PASS REGULATING THE RETURN FLOW OF A PILOT VALVE INSERTED IN AN IRRIGATION NETWORK|
    US5675982A|1996-04-26|1997-10-14|Rocky Research|Pulsed operation control valve|
    GB2383578B|1999-05-27|2003-10-08|Matthew James Harold Rawlings|Sprayer controller and method|
    ITVI20030115A1|2003-06-13|2004-12-14|Arno Drechsel|DEVICE FOR THE GENERATION OF VACUUM, PARTICULARLY|
    US20080087749A1|2006-10-10|2008-04-17|Rodney Ruskin|Irrigation flushing system|
    US9924645B2|2015-12-21|2018-03-27|International Business Machines Corporation|Controlling valve operation using pressure|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT22449/87A|IT1223015B|1987-10-29|1987-10-29|DEVICE FOR PULSATED DISPENSING OF AN IRRIGATION LIQUID AND IRRIGATION SYSTEMS THAT INCORPORATE THE DEVICE|
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