| 摘要 |
PURPOSE: An underground pipe system containing a water supply and discharge pipe and a water discharge hole is provided which is capable of effectively supplying and draining water necessary for growing plants and crops even during the dry, rainy and severe cold season. The system can also supply cold air in the hottest weather as well as hot air. CONSTITUTION: This underground pipe system comprises: a supply pipe(13) for supplying hot air or water supplied from a heater or a water supply equipment through a connection pipe; a discharge pipe(11) constructed on the upper side of the supply pipe to discharge air or water; a supply hole(16) formed on both side portion of the supply pipe with a discharge groove(17) and fusing rod(14); and a discharge hole(12) intermittently formed on the surface of the discharge pipe. A fixing rod and fusing point are arranged at the opposite portion of the supply pipe by bending the discharge pipe. The system can supply warm air at 15 to 25deg.C during the winter season and cold air at 5 to 10deg.C during the summer season and promote drainage during the rainy season and also has a heat retaining function. |
