WATER SUPPLY APPARATUS FOR HEATING GREENHOUSE WITH INTERNAL CURTAIN FOR SPRAYING WATER DESIGNED TO RECOVER USED WATER AND MIX AND RECYCLE USED WATER AND GROUND WATER AFTER HEATING TO FORM WATER CURTAIN

摘要

PURPOSE: A water supply apparatus used for heating a curved roof greenhouse(vinyl house) with an internal curtain for spraying water allowing for recovery of used water through a water receiving container and mixing and recycling of used water and ground water after heating to form a water curtain is provided. It is simple in construction and reduces energy consumption. CONSTITUTION: The water supply apparatus for greenhouse is designed to recover used water through a water receiving container(20), recover to a recovered water tank(30) by allowing reflux through a reflux pipe(21), supply most of the water to a raw water tank(40) and drain the remainder through a drain pipe(32). The heating of a vinyl house is achieved by heating raw water supplied from the raw water tank in a boiler(50) and spraying the heated water on the inner roof of a greenhouse through a nozzle(12) to form a water curtain. The temperature of ground water to be supplied to the raw water tank, water supplied from the recovered water tank and water for heating the greenhouse is about 13deg.C, 5 to 6deg.C and 12 to 15deg.C respectively.