• 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:
    An impulse-sinking hydrant having an upright cylindrical housing with a movable piston disposed therein and formed with a radial passageway and an upright stem having a first passageway communicating with the radial passageway, the upright stem extending above the housing in an upper position of the piston. The upper end of the housing communicates with a pressure-accumulative reservoir through a second passageway which lies in registration with the radial passageway when the piston is in the upper position. A supply conduit carrying water under pressure communicates with the reservoir through a third passageway and with the interior of the housing through a fourth passageway feeding into the lower end thereof for displacing the piston upwardly. A valve member vertically disposed in the third passageway is displaceable by the water from the supply conduit into a radial passageway blocking position for allowing the water to feed into the reservoir and, upon equalization of the water pressure in the reservoir with the water pressure in the supply conduit, the valve being displaceable by gravity into a supply conduit blocking position for allowing the water from the reservoir to feed into the radial passageway.
    公开号:SU942633A1
    申请号:SU797770515
    申请日:1979-04-04
    公开日:1982-07-15
    发明作者:Йорданов Георгиев Веселин；Стефанов Медникаров Владимир
    申请人:Институт По Механике И Биомеханике,София(Инопредприятие)；
    IPC主号:
    专利说明:

    (54) PULSE DIPPING HYDRANT
    one
    The invention relates to agriculture and can be used in stationary sprinkler systems with synchronous pulsed action.
    A pulsed immersing hydrant is known, which consists of a movable rack with a pulse Action control valve installed at its upper end and a cylindrical body connected at its lower end with a water-air tank. Inside the movable stand and the casing there are two tubes that are telescopically inserted into each other, the inside of which is rigidly connected to the stand and the control valve with a pulse action, and the external one is rigidly fixed in the case, passes through its bottom and connects to the supply pipeline.
    A plunging hydrant is known, consisting of a cylindrical body in which a movable stand with a central longitudinal opening is installed. The rack ends with a tight piston. An annular groove is formed along the lateral surface of the piston, which is connected by radial holes to the central hole of the rack.
    A disadvantage of the known impulse submersible hydrant is that the telescopically interconnecting tubes located inside the movable rack and the body, which make it difficult to seal the movable elements of the hydrant, increase the hydraulic losses during sprinkling and lead to an increase in the diameter of the hydrant, and proportionally This also increases the resistance forces of the soil when removing the rack above the ground. In addition, a large, unproductive in terms of sprinkling, volume, including the volume of the hull and the volume of the rack, leads to an increase in several times the volume of the water-air reservoir of the voir.
    The purpose of the invention is to create a pulse dipping hydrant of minimum diametrical dimensions with minimal energy loss of water flow, minimum volume of water conductive paths behind the water-air reservoir, without the need to include additional elements as in a movable rack, also in the hydrant body.
    This goal is achieved by creating a pulsed immersion hydrant, in which a chamber with a cavity with a vertically disposed slide valve is rigidly mounted vertically to the supply pipeline. The upper part of the chamber is connected by a horizontal tube on one side with the annular groove of the piston, and on the opposite side - with the water chamber of the air / water reservoir. In the upper end of the spool there is a hole connecting its cavity with a water chamber, and at its lower end there is a hole coaxial with the hole. an intermediate chamber wall connecting the cavity of the valve through a vertical drip with a movable ball and intermediate connections to the supply pipe. At the lower end of the vertical channel is a slot for a ball.
    The advantages of the invention are that the water chamber of the water-air tank is connected to the movable stand in the uppermost part of the body without part of the volume of the latter in the working water conduit following the tank, which reduces hydraulic losses, and the unproductive volume is significantly reduced. A reduction in the required volume of the reservoir by several times and an effective use of the pressure of the water accumulated in it in relation to the rain is achieved. The movable stand and the body are not duplicated by tubes located inside the telescopically each other, which, together with the piston of the movable stand tightly developed in the axial direction, reduces the diametrical dimensions of the hydrant, increases the reliability of the stand removal above the ground and simplifies the sealing of the moving elements.
    An exemplary embodiment of the invention is shown in the drawing, which is a vertical section along the axis of a pulsed immersion hydrant.
    The impulse submersible hydrant consists of a housing 2 in which a movable stand 12 is installed, ending with a dense piston 7. An annular groove 9 with radial holes 8 connecting the groove 9 with the central opening 13 of the pole 12 is developed on the lateral surface of the piston. The pipe 4 is rigidly mounted with a chamber 4 with a zolotnik 16 vertically disposed therein with a cavity 6. The upper part of the chamber 4 is by means of a horizontal tube
    15 is connected on one side with the annular groove 9 of the piston 7, and on the other side with the water chamber 20 of the water-air reservoir 21. At the upper end of the spool
    16 there is an opening 17 connecting the water chamber 20 with its cavity, and at its lower end there is an opening 5 coaxially with
    a bore 2 of the intermediate wall 18 of the chamber 4 connecting the cavity b of the spool 16 through the vertical channel 26 to the movable ball 24 and the intermediate connections 28 and 3c of the supply pipe 29. A socket 27 for the ball 24 is formed at the lower end of the vertical channel.
    Pulse immersion hydrant works as follows.
    At the initial moment before switching on the supply pressure line 29, the movable stand 12 is in the lowest position, i.e. it is removed in cylinder 2, and the spool 16 and ball 24 are respectively in the lower part of chamber 4 and the cone-shaped socket 27 of channel 26. At switching on the pressure pipeline 29, water through pipe 30 and hole 31 of bottom 1 penetrates into the sub-piston space of housing 2 and begins to push the piston 7 upward, and with it the immersion strut 12. At the same time, water penetrates through chamber 4, raises gold 16 and closes the opening 15, and the passage through the opening 28 and the cone-shaped nest 27, lifts the ball 24. Through the channel 26, the holes 25 and 5, the cavity 6 of the golden 16 and the holes 17 and 19 the water enters the water chamber 20 air tank 21, where, through flexible membrane 22, air begins to compress pre-pressurized air to a certain pressure in air tube 23. After withdrawal of the submersible stand above the ground, i.e., when the extreme upper position of the piston 7 is reached, the axis of the radial holes 8 and the annular groove 9 coincidence t with the axis of the holes 15 and 19. The water from the peristal space of the cylinder 2 is pushed out through the opening 11 into the additional pressure reservoir 10. When the process of accumulating water in the water chamber 20 of the air reservoir 21 is completed, and the pressure in it is equalized with pressure m of water in the pressure supply pipe 29, the ball 24 under the action of its own weight falls into the cone-shaped seat 27 and closes the opening 28. After the signal about the reduced pressure in the supply network 29, the spool 16 is pulsed. moves down and the accumulated water from the water chamber 20 through the holes 19, 15, 8 and 13 is drawn to the sprinkler for sprinkling. This process is carried out under the action of compressed air in the air chamber 23. For all subsequent signals of high and low pressure in the supply pipeline, water is accumulated in the water-air tank 21 periodically, followed by pushing it out for sprinkling through the immersion sprinkler 12. If necessary, remove the immersed water.
    权利要求:
    Claims (2)
    [1]
    Claim
    1. Impulse immersion hydrant,, 0 comprising a cylindrical housing connected at the upper and lower ends, respectively, with an additional and supply pressure networks, a movable strut located in the housing with a central longitudinal | 5 hole and with a piston at the end, with an annular piston groove connected via radial bores with a central hole rack, and vodnovozdushny and reservoir, characterized in that the perpendicular to the feed napor- hydrochloric network 20 is fixedly mounted about the chamber with interstitial wall, having th hole, and with a vertically arranged spool with a cavity, the upper part of the chamber through a horizontal tube connected on one side to the annular groove of the piston, and on the opposite side to the water chamber of the air-water reservoir, and a hole is made in the upper part of the spool connecting the water chamber with cavity, and in the lower part a hole is made, coaxial with the hole of the intermediate wall of the chamber and connecting the spool cavity through a vertical channel in which a movable ball with a supply pressure head is located the network.
    [2]
    2. Submersible hydrant in π. 1, characterized in that, at the lower end of the vertical channel selected socket for the ball.
    It is recognized as an invention according to the results of the examination carried out by the Office for Invention of the People's Republic of Bulgaria.
    类似技术:
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    SU1328721A1|1987-08-07|Arrangement for taking bottom samples
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    SU1253526A2|1986-08-30|Generator of command pulses for closed irrigation system
    SU1102527A1|1984-07-15|Command pulse generator for closed irrigation systems with pulsing sprinkler apparatus
    RU2022317C1|1994-10-30|Culvert water outlet
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    SU305702A1|1976-02-25|Stationary automated sprinkler with pulse sprinklers
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    SU376062A1|1973-04-05|AUTOMATED IRRIGATION SYSTEM
    DE735181C|1943-06-07|Sprinkler with automatic, intermittent water discharge
    SU548242A1|1977-02-28|Retractable Underground Hydrant
    同族专利:
    公开号 | 公开日
    GB2018554B|1982-06-23|
    HU181891B|1983-11-28|
    DE2914064A1|1979-10-25|
    ES250476U|1980-07-16|
    CS237202B1|1985-07-16|
    NL7902884A|1979-10-19|
    FR2423265B3|1982-02-19|
    ES250476Y|1981-01-16|
    DE2914064C2|1987-10-08|
    US4270697A|1981-06-02|
    FR2423265A1|1979-11-16|
    GB2018554A|1979-10-24|
    DD161091A3|1984-10-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1984531A|1931-01-06|1934-12-18|Siemens Ag|Sprayer employed in watering areas of land|
    US1998592A|1932-10-29|1935-04-23|Siemens Ag|Spraying device|
    US3063645A|1961-06-12|1962-11-13|Joseph C Tropeano|Sprinkler head and valve control mechanism with compressed air means|
    SU378198A1|1971-03-19|1973-04-18|Всесоюзный научно исследовательский институт механизации , техники полива|EXTRACTIVE UNDERGROUND HYDRANT|
    US3794245A|1972-05-26|1974-02-26|Williamson Built Inc|Intermittent sprinkler and system|
    US3976250A|1973-11-14|1976-08-24|Bentzinger Harlan A|Irrigation device|BG29733A1|1979-08-21|1981-02-16|Georgiev|Apparatus for impulse sprinkling|
    IL63434D0|1981-07-27|1981-10-30|Mekler Dan|Apparatus and method for drip irrigation|
    US4852801A|1988-03-11|1989-08-01|Wet Enterprises, Inc.|Airpowered water displays|
    GB2241180A|1990-02-22|1991-08-28|Rolls Royce Plc|Automatic retractable fluid delivery valve|
    DE4129888C2|1991-09-09|1995-04-13|Runolt Holz|Telescopic sprinkler|
    US5398873A|1994-04-28|1995-03-21|Johnson; Lonnie G.|Fluid pulsator with accumulator for frequency control|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    BG3944678|1978-04-17|
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