Direct-action type lateral flow regulator

Abstract

The invention specifically discloses a direct-action type lateral flow regulator which comprises a water-in connector connected with a water-in pipe, a water-out connector connected with a water-out pipe and a valve core, wherein the water-in connector and the water-out connector are both of a hollow tubular shape; a vertical cylindrical inner cavity is arranged in a shell; the lower end of the water-in connector is fixedly connected with the upper end of the shell; the left end of the water-out connector is fixedly connected with the side wall of the shell; the valve core comprises a shell, an extension spring, a piston sealing ring and a piston disc; the valve core is positioned in the inner cavity; a rotation center axis of the piston disc is coaxial with the rotation center axis of the inner cavity; the piston sealing ring is arranged between the piston disc and the inner cavity and sleeves the peripheral side surface of the disc body; the two ends of the extension spring are welded on the water-in connector and the piston disc respectively; and a sealing cover is arranged in the inner cavity of the shell. The regulator is simple in structure and quick and sensitive in response; and since the valve core directly contacts with the incoming water, the starting regulation pressure is relatively low.

Description

technical field [0001] The invention relates to the field of agricultural irrigation equipment, in particular to a direct-acting capillary flow regulator. Background technique [0002] Drip irrigation is an advanced water-saving irrigation technology. It mainly uses pressure pipes to directly transport irrigation water to the roots of crops, realizing small-quantity local irrigation. In order to adapt to the uneven terrain conditions of the traditional drip irrigation system, the working pressure of the design water head of the dripper is relatively high, usually reaching about 10 meters. A capillary pressure (flow) regulator is added to the inlet of the capillary. In recent years, with the popularization of drip irrigation systems, drip irrigation technology has been widely promoted and applied in plain areas and greenhouses. For plain irrigation and greenhouses, the topographic height difference is small, so the impact on the irrigation uniformity of the drip irrigation ...

AI Technical Summary

Problems solved by technology

[0003] Due to the head loss in the water delivery system, there must be a pressure difference between the capillary tubes. Under low pressure conditions, the flow rate is more sensitive to the pressure. In order not to affect (reduce) the water uniformity of the regulator, a capillary flow regulator is also required, while the traditional one The capillary pressure (flow) regulator has a high starting pressure, generally around 10 meters, which cannot meet the needs of the low-pressure drip irrigation system. Therefore, it is necessary to research and develop a low-pressure flow regulator with low starting pressure and stable working performance.

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