Device and method for efficient enrichment and slow release application of carbon dioxide

Abstract

The invention discloses a device and a method for efficient enrichment and slow release application of carbon dioxide, and belongs to the field of seaweed and microalgae cultivation. A device for efficient enrichment and slow release application of carbon dioxide comprises a cultivation box and a mounting ring mounted on the cultivation box, and further comprises an aeration pipe arranged in the cultivation box and provided with a plurality of groups of aeration holes; the at least two groups of communicating pieces are arranged on the symmetrical outer side walls of the cultivation box, the communicating piece on one side is communicated with a water inlet pipe, and the communicating piece on the other side is communicated with a water drainage pipe; the connecting shaft is rotationally connected to the side, close to the water inlet pipe, in the cultivation box, and a water wheel is fixedly connected to the connecting shaft; the adding hopper communicates with the side, close to the water wheel, of the cultivation box, and a discharging assembly is arranged in the adding hopper; the invention can overcome the problems of non-uniform distribution of nutrient substances in water, low utilization rate of algae and easy damage of algae.

Description

Technical Field

[0001] The present invention relates to the technical field of seaweed and microalgae cultivation, and particularly to an apparatus and method for efficient enrichment and slow release application of carbon dioxide. Background Art

[0002] Seaweeds refer to large algae visible to the naked eye, such as kelp, laver, and wakame, etc., which are multicellular organisms and mainly grow in marine or freshwater environments; microalgae are single-celled or simply multicellular microalgae, usually only a few micrometers in size and need to be observed with a microscope. They are widely distributed and can survive in fresh water, seawater, and even extreme environments. They have high photosynthetic efficiency and fast reproduction speed. Usually, methods such as natural proliferation, artificial raft culture, and pond culture are adopted. Among them, the pond culture method requires controlling water quality, light, and nutrients, and the nutrients need to be comprehensively selected according to the characteristics of algae and economy through carbon dioxide enrichment and slow release technology.

[0003] By cultivating seaweeds and microalgae, carbon can be captured and sequestered, and nitrogen, phosphorus, and heavy metals in industrial wastewater can be absorbed, reducing water eutrophication; extracting biodiesel and ethanol as energy sources; since some algae are rich in protein, they can be used as a source of vegetarian protein; replacing fish oil to increase the fatty acid content of farmed fish, etc. With the progress of genetic engineering and photoreactor technology, the seaweed and microalgae industries may achieve larger-scale commercialization.

[0004] Currently, during the cultivation of seaweeds and microalgae, most of the gas rich in carbon dioxide (such as industrial waste gas) is directly injected into the cultivation water body through pipelines to increase the dissolution rate, and bicarbonate is added according to the content of nutrients in the water body so that carbon dioxide exists in the form of bicarbonate ions to be slowly released for the use of algae. However, in large-scale cultivation ponds, the water body has insufficient fluidity and the bicarbonate is unevenly distributed during addition, resulting in uneven distribution of nutrients in the water body, which is not conducive to the full utilization of seaweeds. Moreover, when the algae are exposed to the sun for a long time, it is not easy to control the temperature on the water surface, and the sun is also likely to burn the leaves of the algae, resulting in the growth of the algae being hindered. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of uneven distribution of nutrients in the water body, low utilization rate of algae, and easy damage to algae in the prior art, and to propose an apparatus and method for efficient enrichment and slow release application of carbon dioxide.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A device for efficient enrichment and slow release application of carbon dioxide, comprising an incubation box and an installation ring installed on the incubation box, further comprising: an aeration pipe disposed inside the incubation box, with multiple groups of aeration holes provided on the aeration pipe; a connecting member, at least two groups of which are disposed on the symmetric outer side walls of the incubation box, with a water inlet pipe connected to one of the connecting members and a drain pipe connected to the other connecting member; a connecting shaft rotatably connected to one side of the incubation box near the water inlet pipe, with a water wheel fixedly connected to the connecting shaft; an adding hopper communicated with the side of the incubation box near the water wheel, and a blanking assembly provided inside the adding hopper; a sunshade mechanism disposed inside the installation ring, which is used to shield the top of the incubation box when the sunlight is too strong, and a sensor is fixedly connected to the inner wall of the incubation box for monitoring the height of water, the concentration of bicarbonate in the water, and the temperature at the water level in the incubation box; an adjusting mechanism disposed inside the connecting member for making the water flow evenly in the incubation box and adjusting the liquid level height in the incubation box.

[0007] To facilitate the quantitative addition of bicarbonate, preferably, the blanking assembly includes a rotating shaft rotatably connected inside the adding hopper, a blanking roller fixedly connected to the rotating shaft and fitting with the adding hopper, one end of the rotating shaft extends to the outside of the adding hopper, and a first driven wheel assembly is provided at the end of the rotating shaft.

[0008] To facilitate driving the winding roller and the rotating shaft and making the added bicarbonate more evenly distributed, further, on the connecting member on the side of the lower part of the water wheel near the water inlet pipe, the bottom end of the adding hopper is located above the water wheel, one end of the connecting shaft near the first driven wheel assembly extends to the outside of the incubation box, and a driving wheel group is fixedly connected to the end of the connecting shaft, and a first belt is sleeved between the driving wheel group and the first driven wheel assembly.

[0009] To avoid the situation that algae are exposed to the sun for a long time, even further, the sunshade mechanism includes an installation cavity opened in the installation ring, a unwinding roller is rotatably connected to one side of the installation cavity away from the driving wheel group, a sunshade sheet is wound around the unwinding roller, a disk spring is fixedly connected between the unwinding roller and the inner wall of the installation cavity, a winding roller is rotatably connected to one side of the installation cavity away from the unwinding roller, a pull rope connected to the sunshade sheet is wound around the winding roller, a second driven wheel assembly is provided at the shaft end of the winding roller near the driving wheel group, slip rings are provided on both the first driven wheel assembly and the second driven wheel assembly, a second belt is sleeved between the second driven wheel assembly and the driving wheel group, and a hydraulic rod is fixedly connected to one side of the installation cavity near the winding roller.

[0010] In order to ensure the more stable winding and unwinding of the sunshade sheet, further, both the first driven wheel assembly and the second driven wheel assembly include inner rings fixedly connected to the rotating shaft and the winding roller. An outer ring is rotatably connected to the inner ring. A cavity is formed between the inner ring and the outer ring. A plurality of ratchet holes are formed on one side of the outer ring close to the cavity. A plurality of driving plates are rotatably connected to the inner ring through hinges. A second elastic plate is fixedly connected between the driving plate and the outer ring. On the side of the inner ring far from the second elastic plate and close to the winding roller, a mounting plate is fixedly connected. An arc-shaped telescopic rod is fixedly connected between the mounting plate and the driving plate. A second permanent magnet is fixedly connected to the side of the driving plate close to the second elastic plate. A second electromagnet is fixedly connected to the side of the inner ring close to the second permanent magnet. Among them, the side of the driving plate close to the ratchet hole is inclined. The arc-shaped telescopic rod is communicated with the hydraulic rod through a slip ring. The second electromagnet is electrically connected to the sensor through a slip ring. And when the second electromagnet is energized, the magnetic properties of the mutually approaching sides of the second electromagnet and the second permanent magnet are the same.

[0011] In order to facilitate the adjustment of the liquid level height and the fluidity of the water body, further, the adjusting mechanism includes a baffle rotatably connected in the connecting member. A first elastic plate is fixedly connected between the baffle and the connecting member. A first permanent magnet is fixedly connected to the baffle close to the drain pipe. A first electromagnet is fixedly connected to the connecting member close to the first permanent magnet. An adjusting rod is fixedly connected between the baffle close to the water inlet pipe and the connecting member. Among them, the first electromagnet is electrically connected to the sensor. And when the liquid level in the cultivation box is too high, the first electromagnet is energized and the magnetic properties of the mutually approaching sides of the first electromagnet and the first permanent magnet are opposite. When the liquid level in the cultivation box is too low, the first electromagnet is energized and the magnetic properties of the mutually approaching sides of the first electromagnet and the first permanent magnet are the same. The adjusting rod is communicated with the hydraulic rod through a pipeline.

[0012] In order to ensure the stability and uniformity of carbon dioxide delivery, preferably, one end of the air diffuser pipe extends to the outside of the cultivation box, and the other end is sealed for delivering carbon dioxide. The air diffuser pipe is located at the bottom inside the cultivation box. A plurality of air diffuser holes are evenly formed on the air diffuser pipe for evenly discharging carbon dioxide to the bottom of the cultivation box. And the air diffuser pipe is arranged in an "S" shape.

[0013] In order to improve the diversity of water body flow, preferably, the connecting members on both sides are arranged in a low-high-low-high sequence in turn, and the lowermost water inlet pipe is located below the lowermost drain pipe.

[0014] In order to facilitate the monitoring of the state of the water body, preferably, the sensor includes three parts. The lowermost part is a bicarbonate monitoring part, the middle part is a liquid level monitoring part, and the uppermost part is a temperature monitoring part. And the temperature detection part is located above the liquid level.

[0015] A method for efficient enrichment and slow release application of carbon dioxide, comprising the following steps: Step 1: During the cultivation of seaweeds and microalgae, carbon dioxide is intermittently discharged to the bottom, increasing the carbon dioxide content in the water. At the same time, substances rich in carbon dioxide at the bottom are transported to the water surface to promote the growth of seaweeds and microalgae; Step 2: Drive the water flow to move in horizontal and vertical directions, so that the seaweed and microalgae leaves can stretch, while taking away metabolic wastes and maintaining the cleanliness of the seaweed and microalgae leaves; Step 3: During the flow of water, adjust the inflow and outflow of water according to the height of the liquid level to avoid the liquid level being too low or too high; Step 4: With the cultivation of seaweeds and microalgae, when the concentration of bicarbonate in the water is too low, add bicarbonate to the water so that carbon dioxide exists in the form of bicarbonate ions and is slowly released for the growth of seaweeds and microalgae; Step 5: When the sunlight is too strong, shade the seaweeds and microalgae to avoid long-term exposure to the sun.

[0016] Compared with the prior art, the present invention provides a device and method for efficient enrichment and slow release application of carbon dioxide, having the following beneficial effects: 1. For the device for efficient enrichment and slow release application of carbon dioxide, the dissolution rate of carbon dioxide in the water body can be increased through the air diffuser pipe. At the same time, nutrients at the bottom of the water body can be lifted to the water surface through tiny bubbles, thereby promoting the growth of algae. Then, the horizontal and vertical fluidity of the water body is increased through the water inlet pipe and the drain pipe, enabling the algae leaves to stretch, increasing the light-receiving area, thus improving the photosynthesis efficiency. At the same time, metabolic wastes can be taken away, thereby improving the nutritional conditions of the algae. At the same time, the leaves can also be cleaned, which is beneficial to the progress of photosynthesis.

[0017] 2. For the device for efficient enrichment and slow release application of carbon dioxide, when the water body is flowing, the water wheel can drive the feeding assembly to rotate according to the nutritional components of the water body, adding bicarbonate to the cultivation tank. At the same time, the bicarbonate can also be stirred by the water wheel to make its distribution in the water body more uniform. In addition, the inflow and discharge speeds of the water body can be adjusted according to the height of the water surface, making the water surface height relatively stable, which is beneficial to the growth of algae.

[0018] 3. For the device for efficient enrichment and slow release application of carbon dioxide, when the sunlight is too strong, the water wheel can also drive the shading mechanism to intermittently shade the algae, avoiding the algae being in a long-term exposure state and being burned by the sun, and further improving the growth efficiency of the algae.

[0019] The parts not involved in this device are the same as those in the prior art or can be implemented using the prior art. The present invention can overcome the problems of uneven distribution of water body nutrients, low utilization rate of algae, and easy damage to algae. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic structural diagram of a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 1 ; Figure 2 FIG. is a schematic structural diagram of a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 2 ; Figure 3 FIG. is a top view structural schematic diagram of a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 4 FIG. is a structural schematic diagram of the addition hopper in a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 5 FIG. is a sectional structural schematic diagram of the mounting ring in a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 6 FIG. is a sectional structural schematic diagram of the first driven wheel assembly or the second driven wheel assembly in a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 7 FIG. is a partial sectional structural schematic diagram of the cultivation tank, the connecting member, and the water inlet pipe or the drain pipe in a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention; Figure 8 FIG. is a device for efficient enrichment and slow release application of carbon dioxide proposed by the present invention Figure 5 Schematic diagram of the structure of part A therein.

[0021] In the figure: 1, cultivation tank; 2, mounting ring; 3, aeration pipe; 4, connecting member; 5, water inlet pipe; 6, drain pipe; 7, addition hopper; 8, rotating shaft; 9, feeding roller; 10, connecting shaft; 11, water wheel; 12, driving wheel set; 13, first driven wheel assembly; 14, first belt; 15, installation cavity; 16, unwinding roller; 17, sunshade; 18, disc spring; 19, winding roller; 20, pull rope; 21, second driven wheel assembly; 2101, inner ring; 211, outer ring; 212, cavity; 213, ratchet hole; 214, driving plate; 215, second elastic plate; 216, mounting plate; 217, arc-shaped telescopic rod; 218, second permanent magnet; 219, second electromagnet; 22, slip ring; 23, second belt; 24, sensor; 25, hydraulic rod; 26, baffle; 27, first elastic plate; 28, first permanent magnet; 29, first electromagnet; 30, adjusting rod. DETAILED DESCRIPTION OF THE INVENTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] Embodiment 1: Referring to Figures 1-8 , a device for efficient enrichment and slow release application of carbon dioxide, including a cultivation box 1 and a mounting ring 2 installed on the cultivation box 1, and further including: an air supply pipe 3 disposed inside the cultivation box 1, and a plurality of air supply holes are provided on the air supply pipe 3; at least two connecting members 4 are disposed on the symmetric outer side walls of the cultivation box 1, and a water inlet pipe 5 is connected to one of the connecting members 4, and a drain pipe 6 is connected to the other connecting member 4. The connecting members 4 on both sides are arranged in a low-high-low-high sequence. The lowermost water inlet pipe 5 is located below the lowermost drain pipe 6, and both the water inlet pipe 5 and the drain pipe 6 are connected to a replenishment tank for replenishing the water in the cultivation box 1 while realizing water flow. A filtering device is provided on one side of the replenishment tank close to the drain pipe 6 for treating seaweed and microalgae metabolites in the water during the circulation process; a connecting shaft 10 is rotatably connected to one side of the cultivation box 1 close to the water inlet pipe 5, and a water wheel 11 is fixedly connected to the connecting shaft 10; a feeding hopper 7 is connected to the cultivation box 1 close to the water wheel 11, and a feeding assembly is arranged inside the feeding hopper 7; a sunshade mechanism is arranged inside the mounting ring 2 for shielding the top of the cultivation box 1 when the sunlight is too strong. A sensor 24 is fixedly connected to the inner wall of the cultivation box 1 for monitoring the height of the water in the cultivation box 1, the concentration of bicarbonate in the water, and the temperature at the water surface. The sensor 24 includes three parts. The lowermost part is a bicarbonate monitoring part, the middle part is a liquid level monitoring part, and the uppermost part is a temperature monitoring part, and the temperature detection part is located above the liquid level; an adjusting mechanism is arranged inside the connecting member 4 for making the water flow evenly in the cultivation box 1 and adjusting the liquid level height in the cultivation box 1.

[0025] In this example, during the cultivation of algae, carbon dioxide gas is intermittently introduced into the cultivation tank 1 through the aeration pipe 3. Part of the gas will dissolve in the water body, and the other part will form a bubble curtain in the form of tiny bubbles, rising the deep water body rich in nutrients to the water surface. Moreover, the water flow rate is increased through the water inlet pipe 5 and the drain pipe 6, which can not only improve the lighting conditions and nutritional conditions of the algae, but also increase gas exchange and reduce the adhesion of algae stains on the liquid surface, thereby promoting the growth of algae. And when the water body is flowing, bicarbonate is added according to the nutrient components of the water body, and under the action of the water wheel 11, the bicarbonate is stirred so that the bicarbonate is evenly distributed in the water body and slowly released for the algae to use. When the sunlight is too strong, the water wheel 11 can drive the shading mechanism to intermittently shade the algae, which can not only ensure the photosynthesis of the algae, but also prevent the algae from being burned, further promoting the growth of the algae.

[0026] Referring to Figure 1 and Figure 4 , the blanking assembly includes a rotating shaft 8 rotatably connected in the adding hopper 7. A blanking roller 9 that fits the adding hopper 7 is fixedly connected to the rotating shaft 8. One end of the rotating shaft 8 extends to the outside of the adding hopper 7, and a first driven wheel assembly 13 is arranged at the end of the rotating shaft 8. A connecting member 4 on the lower part of the water wheel 11 is close to one side of the water inlet pipe 5. The bottom end of the adding hopper 7 is located above the water wheel 11. One end of the connecting shaft 10 extending to the outside of the cultivation tank 1 close to the first driven wheel assembly 13, and a driving wheel set 12 is fixedly connected to the end of the connecting shaft 10. A first belt 14 is sleeved between the driving wheel set 12 and the first driven wheel assembly 13. One end of the aeration pipe 3 extends to the outside of the cultivation tank 1, and the other end is sealed for transporting carbon dioxide. The aeration pipe 3 is located at the bottom inside the cultivation tank 1. A plurality of groups of aeration holes are evenly opened on the aeration pipe 3 for evenly discharging carbon dioxide to the bottom of the cultivation tank 1, and the aeration pipe 3 is arranged in an "S" shape.

[0027] In this embodiment, when adding bicarbonate, first add the bicarbonate into the adding hopper 7. Initially, the blanking roller 9 can block the bicarbonate. When the nutrient components in the water body in the cultivation tank 1 are less, the rotating shaft 8 and the blanking roller 9 are driven to rotate through the first driven wheel assembly 13, and the bicarbonate is evenly added into the cultivation tank 1. And during the adding process, through the rotation of the water wheel 11, the bicarbonate can be thrown to various parts of the cultivation tank 1, so that the bicarbonate is evenly distributed in the cultivation tank 1 for the algae to fully utilize.

[0028] Referring to Figure 1 , Figure 2 , Figure 5 and Figure 8, the sunshade mechanism includes an installation cavity 15 formed in the installation ring 2. A winding roller 16 is rotatably connected to the side of the installation cavity 15 away from the driving wheel set 12. A sunshade sheet 17 is wound around the winding roller 16. A disc spring 18 is fixedly connected between the winding roller 16 and the inner wall of the installation cavity 15. A winding roller 19 is rotatably connected to the side of the installation cavity 15 away from the winding roller 16. A pulling rope 20 connected to the sunshade sheet 17 is wound around the winding roller 19. A second driven wheel assembly 21 is arranged at the shaft end of the winding roller 19 close to the driving wheel set 12. Slip rings 22 are arranged on both the first driven wheel assembly 13 and the second driven wheel assembly 21. A second belt 23 is sleeved between the second driven wheel assembly 21 and the driving wheel set 12. A hydraulic rod 25 is fixedly connected to the side of the installation cavity 15 close to the winding roller 19.

[0029] In this embodiment, when the sun is in a normal state, the sunshade sheet 17 will not block the cultivation box 1. When the sun is too strong, after being exposed to the sun for a long time, the temperature of the liquid surface will gradually rise. At this time, the driving wheel set 12 and the second driven wheel assembly 21 drive the winding roller 19 to rotate. The sunshade sheet 17 is pulled to the other side through the pulling rope 20 and wound on the winding roller 19. When the sunshade sheet 17 on the winding roller 19 is wound to a certain thickness, the hydraulic rod 25 stops the continuous rotation of the winding roller 19. Subsequently, under the action of the disc spring 18, the sunshade sheet 17 is wound onto the winding roller 16, thereby intermittently shading the algae to prevent the algae from being burned due to long-term exposure to the sun and further promoting the growth of the algae.

[0030] Refer to Figure 1 、 Figure 6 and Figure 8, both the first driven wheel assembly 13 and the second driven wheel assembly 21 include an inner ring 2101 fixedly connected to the rotating shaft 8 and the winding roller 19. An outer ring 211 is rotatably connected to the inner ring 2101. A cavity 212 is formed between the inner ring 2101 and the outer ring 211. A plurality of sets of ratchet holes 213 are formed on one side of the outer ring 211 close to the cavity 212. A plurality of sets of driving plates 214 are rotatably connected to the inner ring 2101 through hinges. A second elastic plate 215 is fixedly connected between the driving plate 214 and the outer ring 211. On one side of the inner ring 2101 close to the winding roller 19 and away from the second elastic plate 215, a mounting plate 216 is fixedly connected. An arc-shaped telescopic rod 217 is fixedly connected between the mounting plate 216 and the driving plate 214. On one side of the driving plate 214 close to the second elastic plate 215, a second permanent magnet 218 is fixedly connected. On one side of the inner ring 2101 close to the second permanent magnet 218, a second electromagnet 219 is fixedly connected. Among them, one side of the driving plate 214 close to the ratchet hole 213 is inclined. The arc-shaped telescopic rod 217 is communicated with the hydraulic rod 25 through a slip ring 22. The second electromagnet 219 is electrically connected to the sensor 24 through the slip ring 22. And when the second electromagnet 219 is energized, the magnetic properties of the mutually approaching sides of the second electromagnet 219 and the second permanent magnet 218 are the same.

[0031] In this embodiment, it should be explained that the specific structure of the slip ring 22 can refer to the conventional means in the prior art. Those skilled in the art can know this and will not be elaborated here. The slip ring 22 can realize the stable connection of gas, liquid, and electricity between the stationary and rotating structures. When the sunlight is too strong, under the action of the sensor 24, the second electromagnet 219 on the second driven wheel assembly 21 is in an energized state. Under the action of the second permanent magnet 218, the driving plate 214 is driven to rotate towards the ratchet hole 213 side. Thus, when the outer ring 211 rotates, the inner ring 2101 and the winding roller 19 are driven to rotate, realizing the unwinding of the sunshade 17 to shade the algae. When the sunshade 17 wound on the winding roller 19 is wound to a certain thickness, the hydraulic rod 25 will be compressed, driving the arc-shaped telescopic rod 217 to extend outwards until the driving plate 214 disengages from the ratchet hole 213. Then, with the action of the disc spring 18, the sunshade 17 is wound onto the unwinding roller 16, thereby intermittently shading the algae, which can avoid burning the algae while ensuring the photosynthesis of the algae.

[0032] Refer to Figure 1 , Figure 2 and Figure 7, The adjusting mechanism includes a baffle 26 rotatably connected inside the communicating member 4. A first elastic plate 27 is fixedly connected between the baffle 26 and the communicating member 4. A first permanent magnet 28 is fixedly connected to the baffle 26 on the side close to the drain pipe 6. A first electromagnet 29 is fixedly connected to the side of the communicating member 4 close to the first permanent magnet 28. An adjusting rod 30 is fixedly connected between the baffle 26 on the side close to the water inlet pipe 5 and the communicating member 4. Among them, the first electromagnet 29 is electrically connected to the sensor 24. When the liquid level in the cultivation box 1 is too high, the first electromagnet 29 is energized and the magnetic poles on the side close to the first permanent magnet 28 are opposite. When the liquid level in the cultivation box 1 is too low, the first electromagnet 29 is energized and the magnetic poles on the side close to the first permanent magnet 28 are the same. The adjusting rod 30 is connected to the hydraulic rod 25 through a pipeline.

[0033] In this embodiment, under normal conditions, the water in the supplementary tank is discharged into the cultivation box 1 through the water inlet pipe 5 under the action of the pump, and then the water in the cultivation box 1 is pumped into the supplementary tank through the drain pipe 6 by the pump, so as to realize the flow of the water body in the cultivation box 1. And when the water pressure on the side of the communicating member 4 close to the water inlet pipe 5 reaches a certain value, it drives the baffle 26 to rotate, so that the water can uniformly pass through the communicating member 4 and be discharged into the cultivation box 1. The water flow at the drain pipe 6 has the same working principle as above, which can ensure the stability of the water flow. And in the cross-shaped arrangement of the water inlet pipe 5 and the drain pipe 6, the water body can move along the horizontal and vertical directions simultaneously during the flowing process to promote the growth of algae. Since the cultivation box 1 is outdoors, under the action of sunlight, the evaporation of water will be accelerated. Therefore, water needs to be replenished regularly. When the liquid level is lower than the specified value, the first electromagnet 29 is energized, generating a repulsive force with the first permanent magnet 28, driving the baffle 26 to rotate towards the cultivation box 1 side, thereby reducing the water discharge volume. While ensuring the water flow, the water in the cultivation box 1 can be replenished. When the liquid level is too high, it is the opposite of the above process to increase the water discharge volume. In addition, the hydraulic rod 25 and the adjusting rod 30 can be combined to adjust the water discharge volume.

[0034] Embodiment 2: Basically the same as Embodiment 1. On the basis of Embodiment 1, a method for efficient enrichment and slow release application of carbon dioxide includes the following steps: Step 1: During the cultivation of seaweed and microalgae, carbon dioxide is intermittently discharged to the bottom, increasing the carbon dioxide content in the water and transporting the substances rich in carbon dioxide at the bottom to the water surface to promote the growth of seaweed and microalgae. Step 2: Drive the water flow to move along the horizontal and vertical directions, so that the seaweed and microalgae leaves can stretch, while taking away the metabolic wastes and keeping the cleanliness of the seaweed and microalgae leaves. Step 3: During the flow of water, adjust the inflow and outflow of water according to the height of the liquid level to prevent the liquid level from being too low or too high; Step 4: During the cultivation of seaweeds and microalgae, when the concentration of bicarbonate in the water is too low, add bicarbonate to the water so that carbon dioxide exists in the form of bicarbonate ions and is slowly released to supply the growth of seaweeds and microalgae; Step 5: When the sunlight is too strong, shade the seaweeds and microalgae to prevent them from being exposed to the sun for a long time.

[0035] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover the equivalent replacement or change according to the technical solution and inventive concept of the present invention within the protection scope of the present invention.

Claims

1. An apparatus for efficient enrichment and slow release application of carbon dioxide, comprising a cultivation box (1) and a mounting ring (2) installed on the cultivation box (1), characterized in that, It further includes: An aeration pipe (3) is arranged inside the cultivation box (1), and multiple groups of aeration holes are arranged on the aeration pipe (3); Connecting members (4), at least two groups are arranged on the symmetric outer side walls of the cultivation box (1), a water inlet pipe (5) is connected to one of the connecting members (4), and a drain pipe (6) is connected to the other connecting member (4); A connecting shaft (10) is rotatably connected to one side of the cultivation box (1) close to the water inlet pipe (5), and a water wheel (11) is fixedly connected to the connecting shaft (10); An adding hopper (7) is connected to one side of the cultivation box (1) close to the water wheel (11), and a blanking assembly is arranged inside the adding hopper (7); A sunshade mechanism is arranged inside the mounting ring (2), and is used to shield the top of the cultivation box (1) when the sunlight is too strong. A sensor (24) is fixedly connected to the inner wall of the cultivation box (1) for monitoring the water height, the concentration of bicarbonate in the water, and the temperature at the water level in the cultivation box (1); An adjusting mechanism is arranged inside the connecting member (4) for making the water flow evenly in the cultivation box (1) and adjusting the liquid level height in the cultivation box (1).

2. The device for high-efficiency enrichment and slow-release application of carbon dioxide according to claim 1, wherein, The blanking assembly includes a rotating shaft (8) rotatably connected inside the adding hopper (7), a blanking roller (9) fixedly connected to the rotating shaft (8) and fitting with the adding hopper (7), one end of the rotating shaft (8) extends to the outside of the adding hopper (7), and a first driven wheel assembly (13) is arranged at the end of the rotating shaft (8).

3. The device for high-efficiency enrichment and slow-release application of carbon dioxide according to claim 2, characterized in that, The lower part of the water wheel (11) is close to the connecting member (4) on one side of the water inlet pipe (5), the bottom end of the adding hopper (7) is located above the water wheel (11), one end of the connecting shaft (10) close to the first driven wheel assembly (13) extends to the outside of the cultivation box (1), and a driving wheel set (12) is fixedly connected to the end of the connecting shaft (10). A first belt (14) is sleeved between the driving wheel set (12) and the first driven wheel assembly (13).

4. The device for high-efficiency enrichment and slow-release application of carbon dioxide according to claim 3, characterized in that, The sunshade mechanism includes a mounting cavity (15) opened inside the mounting ring (2). A winding roller (16) is rotatably connected to one side of the mounting cavity (15) away from the driving wheel set (12). A sunshade sheet (17) is wound around the winding roller (16). A disc spring (18) is fixedly connected between the winding roller (16) and the inner wall of the mounting cavity (15). A winding roller (19) is rotatably connected to one side of the mounting cavity (15) away from the winding roller (16). A pulling rope (20) connected to the sunshade sheet (17) is wound around the winding roller (19). A second driven wheel assembly (21) is arranged at the shaft end of the winding roller (19) close to the driving wheel set (12). Slip rings (22) are arranged on both the first driven wheel assembly (13) and the second driven wheel assembly (21). A second belt (23) is sleeved between the second driven wheel assembly (21) and the driving wheel set (12). A hydraulic rod (25) is fixedly connected to one side of the mounting cavity (15) close to the winding roller (19).

5. The device for efficient enrichment and slow release application of carbon dioxide according to claim 4, characterized in that, The first driven wheel assembly (13) and the second driven wheel assembly (21) both include an inner ring (2101) fixedly connected to the rotating shaft (8) and the winding roller (19). An outer ring (211) is rotatably connected to the inner ring (2101). A cavity (212) is formed between the inner ring (2101) and the outer ring (211). A plurality of sets of ratchet holes (213) are formed on one side of the outer ring (211) close to the cavity (212). A plurality of sets of driving plates (214) are rotatably connected to the inner ring (2101) through hinges. A second elastic plate (215) is fixedly connected between the driving plate (214) and the outer ring (211). On one side of the inner ring (2101) close to the winding roller (19) and away from the second elastic plate (215), a mounting plate (216) is fixedly connected. An arc-shaped telescopic rod (217) is fixedly connected between the mounting plate (216) and the driving plate (214). A second permanent magnet (218) is fixedly connected to one side of the driving plate (214) close to the second elastic plate (215). A second electromagnet (219) is fixedly connected to one side of the inner ring (2101) close to the second permanent magnet (218). Wherein, one side of the driving plate (214) close to the ratchet hole (213) is inclined. The arc-shaped telescopic rod (217) is communicated with the hydraulic rod (25) through a slip ring (22). The second electromagnet (219) is electrically connected to the sensor (24) through a slip ring (22). And when the second electromagnet (219) is energized, the magnetic properties of the mutually approaching sides of the second electromagnet (219) and the second permanent magnet (218) are the same.

6. The device for high-efficiency enrichment and slow-release application of carbon dioxide according to claim 4, wherein, The adjusting mechanism includes a baffle (26) rotatably connected in the communicating member (4). A first elastic plate (27) is fixedly connected between the baffle (26) and the communicating member (4). A first permanent magnet (28) is fixedly connected to the baffle (26) on the side close to the drain pipe (6). A first electromagnet (29) is fixedly connected to the communicating member (4) on the side close to the first permanent magnet (28). An adjusting rod (30) is fixedly connected between the baffle (26) on the side close to the water inlet pipe (5) and the communicating member (4). Wherein, the first electromagnet (29) is electrically connected to the sensor (24). And when the liquid level in the cultivation box (1) is too high, the first electromagnet (29) is energized and the magnetic properties of the mutually approaching sides of the first electromagnet (29) and the first permanent magnet (28) are opposite. When the liquid level in the cultivation box (1) is too low, the first electromagnet (29) is energized and the magnetic properties of the mutually approaching sides of the first electromagnet (29) and the first permanent magnet (28) are the same. The adjusting rod (30) is communicated with the hydraulic rod (25) through a pipeline.

7. The device for efficient enrichment and slow release application of carbon dioxide according to claim 1, characterized in that, One end of the aeration pipe (3) extends to the outside of the cultivation box (1), and the other end is sealed for transporting carbon dioxide. The aeration pipe (3) is located at the bottom of the cultivation box (1). A plurality of sets of aeration holes are evenly formed on the aeration pipe (3) for evenly discharging carbon dioxide to the bottom of the cultivation box (1). And the aeration pipe (3) is arranged in an "S" shape.

8. The device for high-efficiency enrichment and slow-release application of carbon dioxide according to claim 1, characterized in that, The connecting members (4) on both sides are arranged in a low-high-low-high sequence in turn, and the lowermost water inlet pipe (5) is located below the lowermost drain pipe (6).

9. The device for high-efficiency enrichment and slow-release application of carbon dioxide according to claim 1, wherein The sensor (24) comprises three parts. The lowermost part is a bicarbonate monitoring part, the middle part is a liquid level monitoring part, and the uppermost part is a temperature monitoring part, and the temperature detection part is located above the liquid level.

10. A method for efficient enrichment and slow release application of carbon dioxide, using the device for efficient enrichment and slow release application of carbon dioxide according to any one of claims 1-9, characterized in that, It includes the following steps: Step 1: During the cultivation of seaweeds and microalgae, carbon dioxide is intermittently discharged to the bottom, which increases the carbon dioxide content in the water and conveys the substances rich in carbon dioxide at the bottom to the water surface to promote the growth of seaweeds and microalgae. Step 2: Drive the water flow to move in horizontal and vertical directions to extend the leaves of seaweeds and microalgae, take away metabolic wastes at the same time, and keep the leaves of seaweeds and microalgae clean. Step 3: During the flowing process of water, adjust the inflow and outflow of water according to the height of the liquid level to avoid the liquid level being too low or too high. Step 4: As the cultivation of seaweeds and microalgae proceeds, when the bicarbonate concentration in the water is too low, add bicarbonate to the water to make carbon dioxide exist in the form of bicarbonate ion and slowly release it for the growth of seaweeds and microalgae. Step 5: When the sunlight is too strong, shade the seaweeds and microalgae to avoid long-term exposure to the sun.

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