Fine algae culture device
First Claim
1. A culture device of microalgae, said device being one of either shape selected from a domed shape, a conical shape, and a cylindrical shape,wherein the culture device of the domed shape comprises an outside semispherical dome of a transparent material, an inside semispherical dome of a transparent material, and a bottom portion connecting lower ends of the two domes, a cylindrical opening portion is provided at top part of the outside semispherical dome, and an introducing member of air and/or carbonic acid gas and a discharging member of a culture solution are provided in the bottom portion, wherein the culture device of the conical shape comprises an outside conical peripheral wall of a transparent material, a transparent inside conical peripheral wall, and a bottom portion connecting lower ends of the two peripheral walls, a cylindrical opening portion is provided at top part of the outside conical peripheral wall, and an introducing member of air and/or carbonic acid gas and a discharging member of a culture solution are provided in the bottom portion, or, wherein the culture device of the cylindrical shape comprises an outside cylindrical peripheral wall having an upper wall of a transparent material, an inside cylindrical peripheral wall having an upper wall a transparent material, and a bottom portion connecting lower ends of the two peripheral walls, a cylindrical opening portion is provided in central part of the upper wall of the outside cylindrical peripheral wall, and an introducing member of air and/or carbonic acid gas and a discharging member of a culture solution are provided in the bottom portion.
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Accused Products
Abstract
This invention relates to a culture device of a domed shape, a conical shape, or a cylindrical shape of a closed type used for culture of microalgae, and a gas discharge device set so as to be movable in the culture device. The culture device is basically composed of a transparent inside member (a semispherical dome, a conical peripheral wall, or a cylindrical peripheral wall), a transparent outside member, and a bottom portion connecting the lower ends of the two members, a cylindrical opening portion is provided at the top part of the outside member, and a gas introducing member and a discharging member of a culture solution are provided in the bottom portion. The gas discharge device is basically composed of two opposed rectangular base plates, a bubble guide member, and a discharge nozzle. The culture solution can be agitated without mechanical agitation and the culture can be carried out in high concentrations.
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Citations
18 Claims
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1. A culture device of microalgae, said device being one of either shape selected from a domed shape, a conical shape, and a cylindrical shape,
wherein the culture device of the domed shape comprises an outside semispherical dome of a transparent material, an inside semispherical dome of a transparent material, and a bottom portion connecting lower ends of the two domes, a cylindrical opening portion is provided at top part of the outside semispherical dome, and an introducing member of air and/or carbonic acid gas and a discharging member of a culture solution are provided in the bottom portion, wherein the culture device of the conical shape comprises an outside conical peripheral wall of a transparent material, a transparent inside conical peripheral wall, and a bottom portion connecting lower ends of the two peripheral walls, a cylindrical opening portion is provided at top part of the outside conical peripheral wall, and an introducing member of air and/or carbonic acid gas and a discharging member of a culture solution are provided in the bottom portion, or, wherein the culture device of the cylindrical shape comprises an outside cylindrical peripheral wall having an upper wall of a transparent material, an inside cylindrical peripheral wall having an upper wall a transparent material, and a bottom portion connecting lower ends of the two peripheral walls, a cylindrical opening portion is provided in central part of the upper wall of the outside cylindrical peripheral wall, and an introducing member of air and/or carbonic acid gas and a discharging member of a culture solution are provided in the bottom portion.
- 8. A gas discharge device for use in a culture device of microalgae, the gas discharge device comprising two opposed rectangular base plates, a bubble guide member of a -shaped cross section opening down, and a discharge nozzle, wherein the bubble guide member is set as inclined with respect to upper surfaces of the rectangular base plates, an inclined wall as an upper surface of the bubble guide member is bent at an upper end thereof to form an upper wall extending substantially horizontally, the bubble guide member has side walls hanging down from both side edges of the inclined wall and the upper wall, lower ends of the both side walls are joined to the upper surfaces of the rectangular base plates, and the discharge nozzle is rotatably mounted through a through hole bored in a lower portion of the inclined wall.
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9. A gas discharge device for use in a culture device, comprising two opposed rectangular base plates, a bubble guide member of an inverse-U-shaped cross section opening down, and a discharge nozzle, wherein the bubble guide member is set as inclined with respect to upper surfaces of the rectangular base plates, an upper end of a semicircular inclined wall as an upper surface of the bubble guide member is bent to form an upper wall extending substantially horizontally as keeping the semicircular shape, the bubble guide member has side walls hanging down from both side edges of the inclined wall and the upper wall, lower ends of the both side walls are joined to the upper surfaces of the rectangular base plates, and the discharge nozzle is rotatably mounted through a through hole bored in a lower portion of the inclined wall.
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12. A microalgae culture apparatus comprising a culture device body and a gas discharge device,
wherein the culture device body is a culture device of a domed shape, a conical shape, or a cylindrical shape, wherein the culture device of the domed shape comprises an outside semispherical dome of a transparent material, an inside semispherical dome of a transparent material, and a bottom portion connecting lower ends of the two domes, a cylindrical opening portion is provided at top part of the outside semispherical dome, and a discharging member of a culture solution are provided in the bottom portion, wherein the culture device of the conical shape comprises an outside conical peripheral wall of a transparent material, a transparent inside conical peripheral wall, and a bottom portion connecting lower ends of the two peripheral walls, a cylindrical opening portion is provided at top part of the outside conical peripheral wall, and a discharging member of a culture solution are provided in the bottom portion, or, wherein the culture device of the cylindrical shape comprises an outside cylindrical peripheral wall having an upper wall of a transparent material, an inside cylindrical peripheral wall having an upper wall of a transparent material, and a bottom portion connecting lower ends of the two peripheral walls, a cylindrical opening portion is provided in central part of the upper wall of the outside cylindrical peripheral wall, and a discharging member of a culture solution are provided in the bottom portion, wherein the gas discharge device comprises two opposed rectangular base plates, a bubble guide member of a -shaped cross section or an inverse-U-shaped cross section opening down, and a discharge nozzle, the bubble guide member is set as inclined with respect to upper surfaces of the rectangular base plates, an inclined wall as an upper surface of the bubble guide member is bent at an upper end thereof to form an upper wall extending substantially horizontally, the bubble guide member has side walls hanging down from both side edges of the inclined wall and the upper wall, lower ends of the both side walls are joined respectively to the two upper surfaces of the rectangular base plates, and the discharge nozzle is rotatably mounted through a through hole bored in a lower portion of the inclined wall.
Specification