PROBLEM TO BE SOLVED: To provide a carbon dioxide gas generator which can achieve miniaturization by achieving integration with the air blower and thereby solve economic problems, because, in a conventional carbonic acid gas generator having a structure equipped with a pair of air plenum, the CO2 temperature and air volume from the air plenum has been considered rarely and thereby burning of crops is thought to be readily occurred.SOLUTION: An outer shell 1 is partitioned into an upper and a lower room by an intermediate plate, a blower 6 is provided in the lower room, and a combustor is provided in the upper room. A first air suction port is opened in the outer shell 1, a heat chamber with an upper opening 700 is provided in the upper room, a suction passage is formed between the upper and lower rooms, the suction passage is provided adjacent to the heat chamber, a first opening of the suction passage opens to the upper opening 700 of the heat chamber, a second opening of the suction passage opens to a suction port of the blower 6, and a discharge port of the blower can be connected to a duct of a house.SELECTED DRAWING: Figure 2-2COPYRIGHT: (C)2018,JPO&INPIT【課題】従来の炭酸ガス発生装置は、対の吹出口を備えた構造であるが、吹出口からのCO2温度、及び風量に関する配慮が稀有であり、作物の焼きつきが発生し易いと考えられる。送風装置との一体化を達成することにより小型化を達成し、経済面の課題解決を図ることができる炭酸ガス発生装置を提供する。【解決手段】外郭体1を中板で上下部屋に区画し、下部屋に送風機6を、上部屋に燃焼機を設ける。外郭体1に、第1空気吸込み口を開設し、上部屋に、上部開口部700を備えた燃焼筒を設け、上下部屋間に吸込み通路を形成し、吸込み通路は、燃焼筒に併設し、吸込み通路の第1開口部は、燃焼筒の上部開口部700に開口し、吸込み通路の第2開口部は、送風機6の吸込み口に開口し、送風機の吐出口は、ハウスのダクトに接続可能とする。【選択図】図2-2
