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不少实验室由于有暖气或空调设施,需开动具有0.6×2米吊门的通风柜,每小时抽出二千多立方米空气,使冬夏季室内难以保持所需的温度。因此我室设计了两个有辅助空气进口的通风柜(见图)。这种结构通过专用管道把室外空气引到通风柜前面多孔板底下溢出,在操作口形成一道气幕。这种
Due to the heating or air-conditioning facilities in many laboratories, a fume hood with a ceiling of 0.6 × 2 meters needs to be activated to extract more than 2,000 cubic meters of air per hour, making it difficult to maintain the desired indoor temperature in winter and summer. Therefore, I designed two fume hoods with auxiliary air intakes (see photo). This structure leads the outdoor air to the underside of the perforated plate in front of the fume hood through a special pipe to form an air curtain at the operation opening. This