Compound algae culture apparatus

A compound algae culture apparatus, comprising:

• a photobioreactor module including at least one photobioreactor unit, wherein the at least one photobioreactor unit includes a light-transmitting coiled pipe, and the light-transmitting coiled pipe has a fluid inlet end and a fluid outlet end;
• a growth regulating module including at least one growth tank unit, wherein the at least one growth tank unit has a tank body, the tank body has a growth tank inlet and a growth tank outlet, and a plurality of partitions are disposed in the tank body to divide an inside of the tank body for formation of a curved flow channel;
• wherein a volume of the at least one growth tank unit is configured to be larger than a volume of the at least one photobioreactor unit, and a residence time of a culture fluid in the at least one growth tank unit is not less than a residence time of the culture fluid in the at least one photobioreactor unit;
• and
• an automatic harvesting device connected to the growth tank outlet of the at least one growth tank unit, wherein the automatic harvesting device is used for harvesting a portion of algae in the culture fluid;
• wherein the culture fluid for culturing the algae enters the growth regulating module after carrying out photosynthesis in the photobioreactor module, the culture fluid passes through the automatic harvesting device after passing through the growth regulating module, and the culture fluid re-enters the photobioreactor module after the portion of the algae in the culture fluid is harvested by the automatic harvesting device;
• wherein the at least one growth tank unit further includes a growth tank light source device, a growth tank gas replenishment device, a plurality of growth tank temperature control devices, and a fluid agitating device;
• wherein the growth tank light source device is disposed above the at least one growth tank unit, the growth tank gas replenishment device is disposed in the at least one growth tank unit for injecting gas into the culture fluid in the at least one growth tank unit, the growth tank temperature control devices are disposed in the at least one growth tank unit for controlling a temperature of the culture fluid in the at least one growth tank unit, and the fluid agitating device is disposed in the at least one growth tank unit for agitating a water flow.