HOT-AIR HEATING SYSTEM FOR PLASTIC GREENHOUSE FOR PROTECTED HORTICULTURE, AND CARBON DIOXIDE RECOVERY AND DISSIPATION SYSTEM AND METHOD FOR HOT-AIR HEATING SYSTEM FOR PLASTIC GREENHOUSE FOR PROTECTED HORTICULTURE
PROBLEM TO BE SOLVED: To provide a hot-air heating system for controlling environment in a plastic greenhouse for protected horticulture to use a paraffin fuel, absolutely free from exhaustion of combustion gas from the greenhouse, and eliminating the need of the operation to open a roof window for temperature control in the daytime, thereby preventing the lowering of the effect of carbon dioxide stored in the greenhouse during the night.SOLUTION: The hot-air heating system includes an open-flame burning apparatus 40 placed in the plastic greenhouse 60 for protected horticulture and supplied with a paraffin fuel, a hot-air duct connected to the open-flame burning apparatus 40 and supplying the combustion gas into the plastic greenhouse 60, a temperature detecting means for detecting the air temperature in the plastic greenhouse 60, a blowing means for circulating and exhausting the air in the plastic greenhouse 60, and a controlling means for controlling the operation of the open-flame burning apparatus 40. The open-flame burning apparatus 40 includes a blower to send combustion gas into the hot-air duct and a hot-air generation means for elevating the temperature of the gas by the heat generated by the combustion of the paraffin fuel, and further provided with a carbon dioxide storage means for dissolving and storing the carbon dioxide in the plastic greenhouse 60.【課題】燃焼ガスをハウス外に一切排出せず、昼間に温度調整のために天窓を開ける必要がない、夜間に貯めたハウス内の二酸化炭素の効果を減じることがない施設園芸ハウス内の環境を調節するためのパラフィン燃料を用いた暖房システムを提供する。【解決手段】施設園芸ハウス６０内に配設され、パラフィン燃料が供給される直火型燃焼装置４０と、直火型燃焼装置４０に接続されて施設園芸ハウス６０内に燃焼ガスを送出する温風ダクトと、施設園芸ハウス６０内の気温を検出する温度検出手段と、施設園芸ハウス６０内の空気の循環及び排出を行う送風手段と、直火型燃焼装置４０の動作を制御する制御手段とを備え、直火型燃焼装置４０は、燃焼ガスを温風ダクトへ送り込むための送風機と、パラフィン燃料の燃焼に伴う発熱により昇温させる温風発生手段とを有し、施設園芸ハウス６０内の二酸化炭素を溶解させ、貯蔵するための二酸化炭素貯蔵手段を備える。【選択図】図５
