Aeration and light supplement device for circular microalgae cultivation pond

Abstract

The utility model discloses a kind of aeration and light supplementing device of circular microalgae breeding pond, it is related to microalgae breeding technical field, including circular breeding pond, aeration device is installed on circular breeding pond, the output end of aeration device is inserted into circular breeding pond, and can do circular stirring around the axis of circular breeding pond, the bottom of circular breeding pond is equipped with light supplementing device, further include total controller, aeration device, light supplementing device are electrically connected with total controller, control is carried out to aeration device and light supplementing device by total controller, the microalgae in pool is stirred by aeration device, avoid the precipitation of microalgae, promote the flow of water body, so that microalgae can be fully combined with the gas pumped in;Light supplementing device set on pool bottom and natural light above pool surface double role, meet the illumination required of microalgae, promote the photosynthesis of microalgae, ensure the rapid growth of microalgae, while supplying illumination up and down makes the illumination of microalgae more sufficient and uniform.

Description

Technical Field

[0001] This utility model belongs to the field of microalgae cultivation technology, and specifically relates to an aeration and supplemental lighting device for a circular microalgae cultivation pond. Background Technology

[0002] Microalgae, as an important biological resource, have extremely broad application prospects in food, feed, health products, cosmetics, and bioenergy. Their cells are rich in high-value-added products such as proteins, lipids, polysaccharides, pigments, and high-value unsaturated fatty acids. In the large-scale cultivation of microalgae, aeration and supplemental lighting are two key technical aspects, mainly used to optimize the growth environment, improve photosynthetic efficiency, and maintain dissolved oxygen balance in the water.

[0003] Existing microalgae cultivation systems typically separate aeration and supplemental lighting devices. Aeration usually employs aeration discs or pipes at the bottom of the tank, releasing tiny bubbles to provide carbon dioxide and promote water flow, preventing algae sedimentation. Supplemental lighting often uses fixed LED panels at the top or lamps suspended above the water surface. However, this separate design has several drawbacks. First, it results in uneven lighting; the top light source is easily blocked by upper algae, leading to insufficient light in the middle and lower layers, limiting cultivation density and biomass production. Second, the bubbles generated by fixed aeration points have short and concentrated upward paths, limiting their ability to mix and agitate the large volume of water in the tank. This can easily create "dead zones" far from the aeration points, where algal cells settle and die, resulting in uneven distribution of carbon dioxide and nutrients. Finally, algae have different light requirements at different growth stages, and traditional supplemental lighting devices cannot provide sufficient light for each stage. Utility Model Content

[0004] The purpose of this invention is to provide an aeration and supplemental lighting device for a circular microalgae cultivation pond, which can solve problems such as uneven aeration, low carbon source utilization, and difficulty in deep-level supplemental lighting in circular cultivation ponds. Through the synergistic effect of the aeration and supplemental lighting devices, the growth rate and cultivation quality of microalgae are improved, while reducing unit production costs. The specific technical solution is as follows: An aeration and supplemental lighting device for a circular microalgae culture pond includes a circular culture pond, an aeration device installed on the circular culture pond, the output end of the aeration device extending into the circular culture pond and capable of circumferentially agitating around the axis of the circular culture pond, a supplemental lighting device provided on the bottom of the circular culture pond, and a main controller, wherein the aeration device and the supplemental lighting device are electrically connected to the main controller.

[0005] Preferably, the aeration device includes a stirring mechanism and an aeration mechanism. The stirring mechanism is mounted on the circular aquaculture pond via a mounting frame. The stirring mechanism includes a stirring drive motor, a dual-shaft drive motor, a waterproof sleeve, an output stirring shaft, stirring blades, and a mounting base. The stirring drive motor is mounted on the mounting frame, and its output end is connected to the mounting base. The waterproof sleeve is mounted on the mounting base, and the dual-shaft drive motor is mounted inside the waterproof sleeve. Both output ends of the dual-shaft drive motor are provided with the output stirring shaft, and the stirring blades are mounted on the output stirring shaft. The aeration mechanism is installed at the center of the bottom of the circular aquaculture pond, and the bottom end of the waterproof sleeve is rotatably mounted on the aeration mechanism.

[0006] Preferably, the stirring blades at both ends of the dual-shaft drive motor extend axially toward the output stirring shaft, and the widths of the stirring blades at both ends are oriented in opposite directions.

[0007] Preferably, the aeration mechanism includes a pump body, a delivery pipe, a connecting mounting base, and an air pump pipe. The connecting mounting base is installed at the center of the bottom of the circular aquaculture pond. The waterproof sleeve is rotatably installed on the connecting mounting base. An air delivery chamber is formed inside the connecting mounting base. The pump body and the connecting mounting base are connected through the delivery pipe. Several air pump pipes are evenly distributed in a star-shaped radial pattern around the center of the connecting mounting base. The air pump pipes are connected to the connecting mounting base. Several air outlet holes are provided on the air pump pipes facing the pond surface.

[0008] Preferably, the supplemental lighting device includes a composite light source plate and a protective cover. The composite light source plate is electrically connected to the main controller, and the composite light source plate is installed at the bottom of the circular aquaculture pond through the protective cover.

[0009] Preferably, the light source of the composite light source board includes blue-violet light and red light.

[0010] Preferably, the main controller further includes a time controller, which controls the composite light source panel to emit light at different time periods.

[0011] Compared with existing technologies, this utility model has the following beneficial effects: 1. This utility model provides an aeration and supplemental lighting device for a circular microalgae culture pond, which can solve problems such as uneven aeration, low carbon source utilization, and difficulty in deep supplemental lighting in circular culture ponds. Through the synergistic effect of the aeration and supplemental lighting devices, the growth rate and culture quality of microalgae can be improved, while reducing the unit production cost.

[0012] 2. The aeration device in this utility model makes the water flow more fully and the microalgae more fully agitated by doubly stirring the pool water, thus overcoming the problem that traditional stirring devices have limited ability to mix and stir the large volume of water in the pool.

[0013] 3. The supplemental lighting device in this invention is reasonably arranged at the bottom of the circular aquaculture pond. Combined with the aeration device to agitate the water, the path of the pumped gas in the pond is extended, which promotes the gas to fully react and contact with the microalgae in the pond. At the same time, the supplemental lighting device realizes alternating light emission under the action of the time controller (or light emission according to the needs of microalgae at different growth stages). With the combined effect of natural light on the pond surface, it promotes the photosynthesis of microalgae and improves the cultivation efficiency and quality of microalgae. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a cross-sectional view of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the circular aquaculture pond of this utility model.

[0017] Figure 3 This is an exploded view of a portion of the stirring mechanism of this utility model.

[0018] Explanation of key figure labels: 100-Circular aquaculture pond, 200-Aeration device, 210-Agitating mechanism, 211-Mounting frame, 212-Agitator drive motor, 213-Dual-shaft drive motor, 214-Waterproof sleeve, 215-Output agitator shaft, 216-Agitator blade, 217-Mounting base, 220-Aeration mechanism, 221-Pump body, 222-Conveying pipe, 223-Connecting mounting base, 224-Air pump pipe, 300-Supplemental lighting device, 310-Composite light source board, 320-Protective cover. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0023] Example like Figures 1 to 3As shown, an aeration and supplemental lighting device for a circular microalgae cultivation pond includes a circular cultivation pond 100, an aeration device 200 installed on the circular cultivation pond 100, the output end of the aeration device 200 extending into the circular cultivation pond 100 and capable of circumferentially agitating around the axis of the circular cultivation pond 100, a supplemental lighting device 300 provided on the bottom of the circular cultivation pond 100, and a main controller. The aeration device 200 and the supplemental lighting device 300 are both electrically connected to the main controller. The aeration device 200 and the supplemental lighting device 300 are controlled by the main controller. The aeration device 200 agitates the microalgae in the pool to prevent sedimentation, promote water flow, and allow the microalgae to fully combine with the pumped gas. The supplemental lighting device 300 at the bottom of the pool and the natural light above the pool surface work together to meet the light requirements of the microalgae, promote photosynthesis, and ensure rapid growth. At the same time, the supply of light from above and below ensures that the microalgae receive more sufficient and uniform light.

[0024] Preferably, the aeration device 200 includes a stirring mechanism 210 and an aeration mechanism 220. The stirring mechanism 210 is mounted on the circular aquaculture pond 100 via a mounting bracket 211. The mounting bracket 211 is mounted on the opening end face of the circular aquaculture pond 100. The stirring mechanism 210 includes a stirring drive motor 212, a dual-shaft drive motor 213, a waterproof sleeve 214, an output stirring shaft 215, stirring blades 216, and a mounting base 217. The stirring drive motor 212 is mounted at the center of the mounting bracket 211, and its output end is connected to the mounting base 217. The waterproof sleeve 214 is mounted on the mounting base 217. Notably, to facilitate the disassembly and assembly of the motor, the mounting base 217 is designed as a modular unit, meaning that the mounting base 217 includes components that can be interlocked (assembled). The first and second halves of the assembly, the mounting base 217 after assembly, has a waterproof function, which can prevent the motor from being damaged by water seepage from the mounting base 217 during operation. Therefore, the dual-shaft drive motor 213 is installed in the waterproof sleeve 214. The output stirring shaft 215 is provided on both output ends of the dual-shaft drive motor 213, and the stirring blade 216 is installed on the output stirring shaft 215. While the stirring drive motor 212 drives the output stirring shaft 215 to rotate around the center of the circular aquaculture pond 100, the output stirring shaft 215 also rotates under the drive of the dual-shaft drive motor 213, stirring the water. Through double stirring, the water flows more fully and the microalgae are more fully agitated, overcoming the problem that traditional stirring devices have limited overall mixing and stirring capabilities for large water bodies in the pond.

[0025] In some preferred embodiments, the stirring blades 216 at both ends of the dual-axis drive motor 213 extend axially toward the output stirring shaft 215, and the widths of the stirring blades 216 at both ends are opposite, that is, one end of the stirring blades 216 at both ends is set upwards and the other end is set downwards. The purpose of this arrangement is to create a "stirring difference" between the stirring at both ends of the dual-axis drive motor 213.

[0026] Preferably, the aeration mechanism 220 is installed at the center of the bottom of the circular aquaculture pond 100, and the bottom end of the waterproof sleeve 214 is rotatably mounted on the aeration mechanism 220.

[0027] In some preferred embodiments, the aeration mechanism 220 includes a pump body 221, a delivery pipe 222, a connecting mounting base 223, and an air pumping pipe 224. The connecting mounting base 223 is installed at the center of the bottom of the circular aquaculture pond 100. The waterproof sleeve 214 is rotatably mounted on the connecting mounting base 223. An air supply chamber is formed inside the connecting mounting base 223. The pump body 221 and the connecting mounting base 223 are connected through the delivery pipe 222, which extends around the center of the connecting mounting base 223. Several air pump pipes 224 are evenly distributed in a star-shaped radial pattern. The air pump pipes 224 are connected to the connecting mounting base 223. The air pump pipes 224 have several air outlet holes facing the pool surface. Oxygen or carbon dioxide is pumped into the circular aquaculture pool 100 through the pump body 221. The pumped gas emerges from the air outlet holes. After being stirred by the aeration device 200, the path of the gas as it floats to the surface can be extended, so that the gas can fully react with or come into full contact with the microalgae.

[0028] In some preferred embodiments, the supplemental lighting device 300 includes a composite light source plate 310 and a protective cover 320. The composite light source plate 310 is electrically connected to the main controller, and the composite light source plate 310 is installed at the bottom of the circular aquaculture pond 100 through the protective cover 320. The light source of the composite light source plate 310 includes blue-violet light, red light, or a combination of both. The main controller also includes a time controller to control the composite light source plate 310 to emit light at different time periods. The supplemental lighting time is alternated (e.g., 12:12 or 14:10). Through the synergistic effect of supplemental lighting at the bottom of the aquaculture pond and natural light at the top, aquaculture efficiency and quality are improved.

[0029] In summary, this invention provides an aeration and supplemental lighting device for a circular microalgae cultivation pond, which solves problems such as uneven aeration, low carbon source utilization, and difficulty in deep-level supplemental lighting in circular cultivation ponds. Through the synergistic effect of the aeration and supplemental lighting devices, the growth rate and cultivation quality of microalgae are improved, while reducing unit production costs. The aeration device in this invention, through dual agitation of the pond water, ensures more thorough water flow and microalgae movement, overcoming the limited mixing and agitation capabilities of traditional stirring devices for large bodies of water. The supplemental lighting device, rationally positioned at the bottom of the circular cultivation pond, combined with the aeration device's agitation, extends the path of the pumped gas within the pond, promoting full reaction and contact between the gas and the microalgae. Simultaneously, under the control of a timer, the supplemental lighting device achieves alternating light emission (or light emission according to the needs of microalgae at different growth stages), and, in conjunction with natural light on the pond surface, promotes photosynthesis in microalgae, improving cultivation efficiency and quality.

[0030] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An aeration and supplemental lighting device for a circular microalgae cultivation pond, comprising a circular cultivation pond (100), characterized in that, An aeration device (200) is installed on the circular aquaculture pond (100). The output end of the aeration device (200) extends into the circular aquaculture pond (100) and can rotate around the axis of the circular aquaculture pond (100). A supplementary lighting device (300) is provided on the bottom of the circular aquaculture pond (100). The pond also includes a main controller. The aeration device (200) and the supplementary lighting device (300) are electrically connected to the main controller. The aeration device (200) includes a stirring mechanism (210) and an aeration mechanism (220). The stirring mechanism (210) is mounted on the circular aquaculture pond (100) via a mounting bracket (211). The stirring mechanism (210) includes a stirring drive motor (212), a dual-shaft drive motor (213), a waterproof sleeve (214), an output stirring shaft (215), stirring blades (216), and a mounting base (217). The stirring drive motor (212) is mounted on... The agitation drive motor (212) is connected to the mounting base (217) on the mounting bracket (211). The waterproof sleeve (214) is installed on the mounting base (217). The dual-shaft drive motor (213) is installed inside the waterproof sleeve (214). The output stirring shaft (215) is provided on both output ends of the dual-shaft drive motor (213). The stirring blade (216) is installed on the output stirring shaft (215). The aeration mechanism (220) is installed at the center of the bottom of the circular aquaculture pond (100), and the bottom end of the waterproof sleeve (214) is rotatably installed on the aeration mechanism (220). The aeration mechanism (220) includes a pump body (221), a delivery pipe (222), a connecting mounting base (223), and an air pump pipe (224). The connecting mounting base (223) is installed at the center of the bottom of the circular aquaculture pond (100). The waterproof sleeve (214) is rotatably installed on the connecting mounting base (223). An air delivery chamber is formed inside the connecting mounting base (223). The pump body (221) and the connecting mounting base (223) are connected through the delivery pipe (222). Several air pump pipes (224) are evenly distributed in a star-shaped radial pattern around the center of the connecting mounting base (223). The air pump pipes (224) are connected to the connecting mounting base (223). Several air outlet holes are provided on the air pump pipes (224) facing the pond surface.

2. The aeration and supplemental lighting device for a circular microalgae cultivation pond according to claim 1, characterized in that, The stirring blades (216) at both ends of the dual-axis drive motor (213) extend axially toward the output stirring shaft (215), and the widths of the stirring blades (216) at both ends are oriented in opposite directions.

3. The aeration and supplemental lighting device for a circular microalgae cultivation pond according to claim 1, characterized in that, The supplemental lighting device (300) includes a composite light source plate (310) and a protective cover (320). The composite light source plate (310) is electrically connected to the main controller. The composite light source plate (310) is installed at the bottom of the circular aquaculture pond (100) through the protective cover (320).

4. The aeration and supplemental lighting device for a circular microalgae cultivation pond according to claim 3, characterized in that, The composite light source board (310) has blue-violet light and red light as its light sources.

5. The aeration and supplemental lighting device for a circular microalgae cultivation pond according to claim 4, characterized in that, The main controller also includes a time controller, which controls the composite light source board (310) to emit light at different time periods.

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