High-pressure micro-jet carbon supplementing system for microalgae cultivation of raceway pond

The invention provides a high-pressure micro-jet carbon supplementing system for microalgae cultivation of a raceway pond. The high-pressure micro-jet carbon supplementing system a liquid portion, a gas portion, a high-pressure micro-jet device and a micro-sprinkler group, the liquid portion is used for providing high-pressure liquid, the gas portion is used for providing high-pressure CO2, the high-pressure liquid reversely and closely contacts with the high-pressure CO2, solubility of tiny CO2 bubbles formed by micro-jet is increased under the high-pressure condition, the CO2 is sufficiently dissolved in the liquid by adjusting flow of the gas and the liquid, and the liquid with the dissolved CO2 enters the micro-sprinkler group placed in the raceway pond and is eventually released into the raceway pond. The high-pressure micro-jet carbon supplementing system overcomes the shortcoming that a carbon source is directly supplemented in a gaseous CO2 form or by taking microalgae liquid as a CO2 carrier in the cultivation process of an existing raceway pond, and the carbon supplementing system is high in CO2 use ratio, uniform in distribution and simple to mount.