초록 ▼

Two pipe-construction houses of a shed-roofed type, facing each other at their ridge sides with a gap provided between the ridges, are coupled with girders to make an integrated construction. The sides are covered with rollable ventilative sheets, and its roof is made of a soft plastic film span on

Two pipe-construction houses of a shed-roofed type, facing each other at their ridge sides with a gap provided between the ridges, are coupled with girders to make an integrated construction. The sides are covered with rollable ventilative sheets, and its roof is made of a soft plastic film span on a pipe-construction roof frame above a hard plastic sheet spread along the central part in the longitudinal direction of the roof. Cultivation beds of rust-prevention-coated thin steel sheet are hung on bed bearing fittings of a pipe structure. Nutrient solution is fed by an air lift pump under control by electric conductance thereof.

대표청구항 ▼

A hydroponic system comprising: a pipe-assembly house construction defining an interior space comprising two shed-roofed structures including strut pipes and having ridge sides facing each other with a gap provided between the facing ridge sides and at least partially exposing the interior space, sa

A hydroponic system comprising: a pipe-assembly house construction defining an interior space comprising two shed-roofed structures including strut pipes and having ridge sides facing each other with a gap provided between the facing ridge sides and at least partially exposing the interior space, said two shed-roofed structures covered with ultraviolet shielding transparent sheets with the gap remaining uncovered, the two shed-roofed structures having a foundation and ridge-side pillars in common, said ridge-side pillars being fixed on said foundation and protruding from the foundation with the distance between adjacent ridge-side pillars expanding as the ridge-side pillars protrude away from the foundation, said two shed-roofed structures being coupled with girders to make an integrated construction thereby forming a triangular configuration between adjacent ridge-side pillar sides of said pipe-assembly house construction, the triangular configuration being covered with ventilative sheets, a plurality of rows of cultivation beds fixed on the strut pipes of said pipe-assembly house construction, nutrient solution channels connecting said cultivation beds, said cultivation beds arranged as a plurality of systems each having several rows of cultivation beds as a unit, nutrient solution tanks coupled to respective systems containing nutrient solution to be provided to the cultivation bends through the channels, the nutrient solution characterized by a temperature and a concentration, and nutrient solution controllers for controlling the concentration and the temperature of the said nutrient solution channels.