| 摘要 |
FIELD: agricultural amelioration, in particular, drop irrigation equipment for irrigation of gardens and vineyards. ^ SUBSTANCE: pulsed dropper has hydropneumatic accumulator and bypass valve. Hydropneumatic accumulator has cover and casing. Cover is connected to pressure main. Casing is communicating with distributing pipe. Drain valve is located in bottom part of casing. Drain valve membrane is made from material featuring initial shape memory. Bypass valve is made in the form of rubber pipe equipped with nipple. One end of valve is inserted into bottom of hydropneumatic accumulator. Other end of valve is connected through pipe union with pressure main. Nipple mounted within rubber pipe cavity is made in the form of disk disposed in mid portion of rod and continuously conjugated with disk which divides bypass valve cavity into pressure chamber and pressure suppressing chamber, said pressure suppressing chamber being communicating with distributing pipe. Water bypass slots and annular channels are provided on disk and rod surfaces, said slots and channels being designed for retaining of rings and also for retaining of rubber pipe ends. Bypass valve is mounted by means of rings on ends of rubber pipe within pipe unions of casings and cover of hydropneumatic accumulator. Said pipe unions in cover and casing may be joined to rings at ends of bypass valve. Pressure suppressing chamber is communicating through radial apertures and axial opening provided in lower part of rod with atmosphere. Radial slots are provided in cover pipe union. ^ EFFECT: increased efficiency of pulsed dropper, enhanced reliability in operation and uniform dispensing of irrigation norms. ^ 3 cl, 2 dwg |
