| 摘要 |
<p>PURPOSE: A single pump type agricultural water supply and drainage apparatus and a water supply and drainage method thereof are provided to selectively or simultaneously supply water to fields, and to discharge waste water through a separated route. CONSTITUTION: A first valve(14) controls inflow of water supplied from a water source(100) on an inlet of a water supply pipe(1). A first drain outlet(11) supplies water to each agricultural field on the rear side of a pump. A second drain outlet(21) discharges wastewater to the outside. A second valve(24) and a third valve(34) control the inlets of a first drainage part and a second drainage part. A drainage pipe(2) discharges the water to the second drain outlet by the first valve and the second valve. A fourth valve(44) opens and closes the drainage pipe. A plurality of branch drain holes(150) is formed on an end of the first drain outlet.</p> |
