Device for making up CO2 in microalgal culture pool

The utility model discloses a device for complementing carbon dioxide from microalgae breeding pond, which comprises section I of the aeration tank, section II of the aeration tank, a carbon dioxide inflation tube, an air aerated tube, a carbon dioxide supply system, an air supply system and a bracket. The aeration tank relies on the breeding pond, section I of the aeration tank is connected with the breeding pond by a channel, section II of the aeration tank is connected with the breeding pond by the channel, one side of the carbon dioxide inflation tube is connected with the carbon dioxide gas transmission tube, one side of the air aerated tube is connected with the air gas transmission tube, and the aeration tank is provided with a baffle. The device improves the absorption of carbon dioxide by solution of algae, and effectively utilizes carbon dioxide to reduce the release of carbon dioxide during production, The device has outstanding economic benefit and good environmental effect, which is suitable for using in runway type cultivating pond and circular cultivating pond for cultivating various microalgae while complementing carbon dioxide.