An oxygen content regulating device for an ecological water body of algae

Abstract

This invention discloses a device for regulating oxygen content in a photophytic aquatic body, comprising a culture tube equipped with a light source assembly, a pneumatic piston assembly at the bottom of the culture tube including a dual-function air pump for charging and suction, and a piston plate slidably disposed inside the culture tube; an air box at the top of the culture tube, equipped with a carbon dioxide introduction mechanism and an oxygen removal mechanism. The piston plate reciprocates to circulate the algal solution, facilitating the transfer of oxygen produced by microalgae photosynthesis into the air box. When the oxygen concentration in the air box exceeds a set value, the piston plate automatically accelerates its movement. This accelerated movement of the piston plate also triggers the oxygen removal mechanism to expel the oxygen produced in the air box more quickly, thus regulating the oxygen content and preventing excessive oxygen consumption and carbon dioxide production caused by excessively high oxygen-to-gas mixture concentrations in the air box.

Description

Technical Field

[0001] This invention relates to the field of ecological and environmental protection technology, specifically to a device for regulating the oxygen content of algae-inspired water bodies. Background Technology

[0002] The global climate is warming, and the main cause of global warming is the continuous increase in carbon dioxide emissions. Therefore, it is urgent to deal with carbon dioxide emissions. There are many ways to deal with carbon dioxide, among which biological carbon sequestration is a very important method. Common biological carbon sequestration mainly relies on algae to carry out photosynthesis, absorb carbon dioxide from the environment and produce oxygen.

[0003] The existing microalgae cultivation system, its cultivation method, and microalgae products, with patent application publication number CN114250133A, include: a photosynthetic reaction unit, a growth regulation unit, a harvesting unit, and an oxygen removal device. The photosynthetic reaction unit has a transparent optical tube, the growth regulation unit has an regulation tank, and the interior of the regulation tank is divided into curved flow channels by multiple baffles. When the culture medium passes through the regulation tank, it gradually cools down and slows down or stops photosynthesis. The harvesting unit is used to collect a portion of the microalgae in the culture medium, and the oxygen removal device is used to remove oxygen from the culture medium. The shortcomings are that the oxygen removal device of the existing microalgae cultivation system is only used to remove oxygen, but cannot regulate the oxygen. When the oxygen concentration in the system pipeline is too high, that is, when the oxygen concentration in the environment where the microalgae are located is too high and cannot be removed in time, the respiration of the microalgae will increase, thus producing too much carbon dioxide. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide a device for regulating the oxygen content of algae-inspired water bodies.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A device for regulating oxygen content in a bioluminescent aquatic body includes a culture tank equipped with a light source assembly. A pneumatic piston assembly, comprising a dual-function air pump for charging and suction, is located at the bottom of the culture tank. A piston plate is slidably mounted inside the culture tank. An air box is located at the top of the culture tank, equipped with a carbon dioxide introduction mechanism and an oxygen removal mechanism. The oxygen removal mechanism includes exhaust pipes connected to the air box, with multiple exhaust pipes distributed circumferentially. An elastic air bladder is connected to the end of each exhaust pipe, with one-way valves at both ends of the elastic air bladder. A connecting vertical rod is connected to the exhaust pipe, and a top pressure plate aligned with the elastic air bladder is slidably mounted on the connecting vertical rod. A fixed pulley is connected to the top of the connecting vertical rod, and a linkage steel wire is connected to the top pressure plate. The linkage steel wire is connected to the fixed pulley, and its end is connected to the bottom of the piston plate. An oxygen concentration detector electrically connected to the dual-function air pump is mounted on the air box.

[0007] As a further aspect of the present invention: the inner bottom of the air box has a plurality of open strip boxes that communicate with the breeding cylinder.

[0008] As a further aspect of the present invention: the carbon dioxide introduction mechanism includes multiple strip-shaped floats, each of which is disposed within a corresponding open strip box. Multiple sliding air pipes are equidistantly arranged on the strip-shaped floats. Multiple air pumps are circumferentially connected to the top outer side of the air box. Multiple fixed air pipes are connected to the top outer side of the air box. The top of each sliding air pipe slides through a corresponding fixed air pipe. The top of each fixed air pipe is connected to the outlet end of a corresponding air pump. Each open strip box is equipped with a liquid level sensing switch electrically connected to the corresponding air pump.

[0009] As a further aspect of the present invention: the bottom end of the sliding air tube penetrates the corresponding strip float, and both ends of the sliding air tube are open.

[0010] As a further aspect of the present invention: the aquaculture tank is provided with a cleaning mechanism, the cleaning mechanism including a suction tube, the suction tube being vertically connected to the piston plate, the top of the suction tube passing through the top of the aquaculture tank and the top of the air box from bottom to top, and the top of the suction tube being connected to a sludge pump.

[0011] As a further aspect of the present invention: the bottom end of the straw is provided with a plurality of auxiliary tubes in a circumferential manner, the auxiliary tubes are connected to the straw, and the bottom of the auxiliary tubes are provided with a plurality of suction holes at equal intervals.

[0012] As a further aspect of the present invention: the breeding cylinder, air box, and open strip box are all transparent glass bodies.

[0013] As a further aspect of the present invention: the light source assembly includes a conical connecting cover, the conical connecting cover being connected to the bottom of the breeding tank, a plurality of first light source lamps being evenly distributed on the inner wall of the conical connecting cover, and a plurality of second light source lamps being evenly distributed on the inner top of the air box.

[0014] The beneficial effects of this invention are:

[0015] 1. The piston plate in this invention reciprocates to circulate the algal liquid, facilitating the transfer of oxygen produced by microalgae photosynthesis in the algal liquid to the gas box. When the oxygen concentration in the gas box exceeds the set value, the piston plate can be automatically adjusted to accelerate its movement. When the piston plate accelerates its movement, it can be linked to the oxygen removal mechanism to accelerate its movement, so as to accelerate the removal of oxygen produced in the gas box, thereby achieving regulation and avoiding excessive oxygen consumption and carbon dioxide production caused by excessively high oxygen concentration in the gas box.

[0016] 2. Under the action of the piston plate, the algal liquid in the culture tube of this invention can be diverted to each of the circumferentially distributed open strip boxes, which facilitates diffusion and light exposure. At the same time, whenever the algal liquid is diverted to the open strip box, the set strip float plate drives the sliding air tube to rise, keeping it at the liquid surface layer, so that the injected carbon dioxide gas can come into contact with the microalgae floating on the liquid surface, thereby facilitating photosynthesis and fully absorbing carbon dioxide gas. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0021] Figure 4 This is a top view schematic diagram of the connection between the aquaculture tube and the open strip box in this invention;

[0022] Figure 5 This is a bottom view schematic diagram of the structure in which the straw and auxiliary tube are connected in this invention.

[0023] In the diagram: 1. Aquaculture tank; 2. Conical connecting cover; 3. First light source; 4. Dual-function air pump (filling and suction); 5. Piston plate; 6. Suction tube; 7. Auxiliary tube; 8. Linkage wire; 9. Elastic airbag; 10. Top pressure plate; 11. Connecting vertical rod; 12. Fixed pulley; 13. One-way air valve; 14. Exhaust pipe; 15. Open strip box; 16. Strip float; 17. Sliding air pipe; 18. Fixed air pipe; 19. Air pump; 20. Liquid level sensor switch; 21. Oxygen concentration detector; 22. Sludge pump; 23. Suction hole; 24. Second light source; 25. Air box. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-5As shown, a device for regulating oxygen content in a photophytic aquatic body includes a culture tank 1 containing microalgae liquid. An air box 25 is fixedly connected to the top of the culture tank 1. Multiple open strip boxes 15, communicating with the culture tank 1, are distributed circumferentially around the bottom of the air box 25. The culture tank 1, air box 25, and open strip boxes 15 are all transparent glass bodies. A light source assembly is installed on the culture tank 1, including a conical connecting cover 2 fixedly connected to the bottom of the culture tank 1. Multiple first light source lamps 3 are evenly distributed on the inner wall of the conical connecting cover 2. Multiple second light source lamps 24 are evenly distributed on the top of the air box 25, facilitating illumination of the entire culture tank 1 and the algae liquid within the air box 25, thus promoting photosynthesis of the microalgae in the algae liquid. A pneumatic piston assembly is installed at the bottom of the culture tank 1, including a dual-function air pump 4. A piston plate 5 is slidably installed inside the culture tank 1, with the algae liquid located in the space above the piston plate 5. Limit switches, electrically connected to the dual-function air pump 4, are installed on both the upper and lower sides of the inner wall. It should be noted that the limit switch on the upper side is electrically connected to the air intake control circuit of the dual-function air pump 4, and the limit switch on the lower side is electrically connected to the air intake control circuit of the dual-function air pump 4. Thus, when the piston plate 5 moves inside the cultivation tube 1, the dual-function air pump 4 can continuously repeat the air intake and intake. When the dual-function air pump 4 inflates the cultivation tube 1, the piston plate 5 slides upward along the cultivation tube 1, which facilitates the push out of the algal liquid in the cultivation tube 1 and diverts it into each open strip box 15, so that the microalgae in the algal liquid can disperse to receive light and fully carry out photosynthesis. When the dual-function air pump 4 intakes, the piston plate 5 slides downward along the cultivation tube 1 due to the negative pressure. Thus, the algal liquid diverted into each open strip box 15 flows back into the cultivation tube 1, realizing the circulation of algal liquid, so as to remove the oxygen produced by photosynthesis.

[0026] The gas box 25 is equipped with a carbon dioxide introduction mechanism, which includes multiple strip floats 16, each set within a corresponding open strip box 15. Multiple sliding air tubes 17 are equidistantly fixedly connected to the strip floats 16, with the bottom end of each tube penetrating the corresponding float and both ends open. Multiple air pumps 19 are circumferentially fixedly connected to the top outer side of the gas box 25, and multiple fixed air tubes 18 are vertically fixedly connected to the top outer side of the gas box 25. The top of each sliding air tube 17 slides through a corresponding fixed air tube 18, and the top of each fixed air tube 18 communicates with the outlet of the corresponding air pump 19. Each open strip box 15 is equipped with a corresponding air pump 19. The liquid level sensor switch 20, which is electrically connected to the piston plate 5, pumps the algae in the culture tank 1 to the open strip boxes 15. As the liquid level in the open strip boxes 15 rises, the corresponding strip float 16 rises accordingly. Once the liquid level rises, the liquid level sensor switch 20 is activated, causing the gas pump 19 to start. The gas pump 19 then introduces carbon dioxide gas or air from the surrounding space into the corresponding fixed gas pipe 18. The introduced gas is then injected into the algae liquid in the open strip boxes 15 through the sliding gas pipe 17. Since the strip float 16 rises with the liquid level of the algae liquid, the bottom port of the sliding gas pipe 17 also rises, which facilitates the contact between the carbon dioxide gas and the microalgae floating on the liquid surface, so as to carry out photosynthesis and fully absorb the carbon dioxide gas.

[0027] An oxygen venting mechanism is provided on the air box 25. The oxygen venting mechanism includes an exhaust pipe 14, which is fixedly connected to the air box 25 and has multiple pipes distributed circumferentially. An elastic airbag 9 is connected to the end of the exhaust pipe 14. One-way valves 13 are provided at both ends of the elastic airbag 9. The one-way valve 13 at the end of the elastic airbag 9 near the exhaust pipe 14 allows gas to flow from the exhaust pipe 14 into the elastic airbag 9, while the one-way valve 13 at the end of the elastic airbag 9 away from the exhaust pipe 14 allows gas to flow out from the elastic airbag 9. A connecting rod 11 is vertically fixedly connected to the exhaust pipe 14. A top pressure plate 10 aligned with the elastic airbag 9 is slidably mounted on the connecting rod 11. The connecting rod 11 passes through the top pressure plate 10. A fixed pulley 12 is fixedly connected to the top of the connecting rod 11. A linkage is connected to the top pressure plate 10. The steel wire 8 and the linkage steel wire 8 are connected to the fixed pulley 12. The end of the linkage steel wire 8 passes through the bottom of the breeding tank 1 and is connected to the bottom of the piston plate 5. When the piston plate 5 is at the bottom of the breeding tank 1, the end of the linkage steel wire 8 near the piston plate 5 is in a relaxed state. Only when the piston plate 5 is raised to a position close to the top of the breeding tank 1, the linkage steel wire 8 is tightened and then raised again, which can pull the linkage steel wire 8 to link the top pressure plate 10. An oxygen concentration detector 21 is installed on the air box 25 and is electrically connected to the charging and suction dual-function air pump 4. It should be noted that the oxygen concentration detector 21 is electrically connected to the operating power level control circuit of the charging and suction dual-function air pump 4 through a relay. This operating power level control circuit controls the power of the charging and suction dual-function air pump 4 during the charging operation and the suction operation.

[0028] The piston plate 5 reciprocates within the culture tank 1, causing the algae solution to flow back and forth between the open strip box 15 and the culture tank 1. This facilitates the release of oxygen into the air chamber 25. Whenever the piston plate 5 rises to a certain height, the linkage wire 8 tauts and is pulled. This pulled linkage wire 8, through the steering action of the fixed pulley 12, lifts the top pressure plate 10. The top pressure plate 10 then compresses the elastic air bladder 9, which expels the oxygen-mixed gas from the exhaust pipe 14. When the piston plate 5 returns to its original position, the linkage wire 8 relaxes, and the top pressure plate 10 returns to its original position under gravity. This resets the elastic air bladder 9, allowing oxygen to flow again from the air chamber 25 through the exhaust pipe 14. The oxygen-containing gas mixture is drawn out from the gas chamber 25, and the oxygen concentration detector 21 is used to detect the oxygen concentration in the gas chamber 25. When the oxygen concentration in the gas chamber 25 exceeds the set value, the oxygen concentration detector 21 sends an electrical signal to the dual-function air pump 4, which increases the operating power of the dual-function air pump 4. This speeds up the air intake and exhaust, thereby increasing the speed of the piston plate 5 in the culture tube 1. The increased speed of the piston plate 5 drives the top pressure plate 10 to repeatedly press the elastic air bag 9, thereby accelerating the output of the oxygen-containing gas mixture in the gas chamber 25. This prevents the microalgae from having excessively strong respiration when the oxygen concentration in the gas chamber 25 is too high, which would consume too much oxygen and produce too much carbon dioxide.

[0029] The aquaculture tank 1 is equipped with a cleaning mechanism, which includes a suction tube 6. The suction tube 6 is vertically fixed to the piston plate 5, and the top of the suction tube 6 slides through the top of the aquaculture tank 1 and the top of the air box 25 from bottom to top. Sealing rubber rings are provided at the penetration positions of the aquaculture tank 1 and the air box 25, and are fitted onto the suction tube 6 to provide a seal. A sludge pump 22, model 100ZJL-A31, is fixedly connected to the top of the suction tube 6. Multiple auxiliary pipes 7 are arranged circumferentially at the bottom of the suction tube 6. The auxiliary pipes 7 are connected to the suction tube 6. Multiple suction holes 23 are equidistantly opened at the bottom of the auxiliary pipes 7. When it is necessary to remove the microalgae residue or dead algae that has settled at the bottom of the aquaculture tank 1, the sludge pump 22 is directly started, so that it can suck up the material that has settled on the piston plate 5 through the auxiliary pipes 7 at the end of the suction tube 6 to achieve cleaning.

[0030] The working principle of this invention is as follows: The culture tube 1 is filled with microalgae liquid. The dual-function air pump 4 at the bottom of the culture tube 1 continuously and repeatedly inflates and deflates the culture tube 1. When inflating the culture tube 1, the piston plate 5 slides upward along the culture tube 1, pushing out the algae liquid in the culture tube 1 and diverting it into each open strip box 15, thereby facilitating the dispersion of microalgae in the algae liquid. Since the air box 25, the open strip box 15 and the culture tube 1 are all transparent glass bodies, it is convenient for the microalgae to be exposed to light and fully carry out photosynthesis. When the dual-function air pump 4 deflates the culture tube 1, the piston plate 5 slides downward along the culture tube 1 due to the negative pressure. In this way, the algae liquid diverted into each open strip box 15 flows back into the culture tube 1. This process is repeated to achieve the circulation of algae liquid.

[0031] Meanwhile, whenever the piston plate 5 pumps the algae in the culture tube 1 out and diverts it into each open strip box 15, as the liquid level in the open strip box 15 rises, the corresponding strip float 16 rises accordingly. Once the liquid level rises, the liquid level sensor switch 20 is activated, causing the gas pump 19 to start. The gas pump 19 then introduces carbon dioxide gas or air from the surrounding space into the corresponding fixed gas pipe 18. The introduced gas is then injected into the algae liquid in the open strip box 15 through the sliding gas pipe 17. Since the strip float 16 rises with the liquid level of the algae liquid, the bottom port of the sliding gas pipe 17 also rises, making it easier for the carbon dioxide gas to come into contact with the microalgae floating on the liquid surface, so as to carry out photosynthesis, fully absorb carbon dioxide gas, and release oxygen.

[0032] When the algae solution flows back and forth between the open strip box 15 and the culture tube 1, the generated oxygen is easily discharged into the air box 25. Whenever the piston plate 5 rises to a certain height, the linkage wire 8 tauts and is then pulled. The pulled linkage wire 8, through the steering action of the fixed pulley 12, lifts the top pressure plate 10 upward. The top pressure plate 10 then squeezes the elastic air bladder 9, which in turn expels the oxygen-mixed gas discharged from the exhaust pipe 14. When the piston plate 5 returns to its original position, the linkage wire 8 relaxes, and the top pressure plate 10 returns to its original position under gravity. In this way, the elastic air bladder 9 returns to its original position and draws oxygen back into the air box 25 through the exhaust pipe 14. The mixture contains a gas, and the oxygen concentration detector 21 is used to detect the oxygen concentration in the gas chamber 25. When the oxygen concentration in the gas chamber 25 exceeds the set value, the oxygen concentration detector 21 sends an electrical signal to the dual-function air pump 4, which increases the operating power of the dual-function air pump 4. This speeds up the air intake and exhaust, thereby increasing the speed of the piston plate 5 moving within the culture tube 1. The increased speed of the piston plate 5 drives the top pressure plate 10 to repeatedly press against the elastic air bag 9, thereby accelerating the oxygen output from the gas chamber 25. This prevents the microalgae from consuming too much oxygen and producing too much carbon dioxide when the oxygen concentration in the gas chamber 25 is too high.

[0033] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A device for regulating oxygen content in a photophyte ecosystem, comprising a culture tube (1), wherein a light source assembly is provided on the culture tube (1), a pneumatic piston assembly is provided at the bottom of the culture tube (1), the pneumatic piston assembly includes a dual-function air pump (4) for charging and suction, and a piston plate (5) is slidably provided inside the culture tube (1); an air box (25) is provided at the top of the culture tube (1), and a carbon dioxide introduction mechanism and an oxygen removal mechanism are provided on the air box (25), characterized in that, The oxygen release mechanism includes an exhaust pipe (14), which is connected to the air box (25) and has multiple pipes distributed circumferentially. An elastic air bag (9) is connected to the end of the exhaust pipe (14). One-way valves (13) are provided at both ends of the elastic air bag (9). A connecting vertical rod (11) is connected to the exhaust pipe (14). A top pressure plate (10) aligned with the elastic air bag (9) is slidably provided on the connecting vertical rod (11). A fixed pulley (12) is connected to the top of the connecting vertical rod (11). A linkage steel wire (8) is connected to the top pressure plate (10). The linkage steel wire (8) is connected to the fixed pulley (12). The end of the linkage steel wire (8) is connected to the bottom of the piston plate (5). An oxygen concentration detector (21) electrically connected to the charging and suction dual-function air pump (4) is provided on the air box (25). The bottom of the air box (25) has a plurality of open strip boxes (15) that are connected to the breeding tube (1) in a circumferential direction. The carbon dioxide introduction mechanism includes multiple strip floats (16), each of which is located within a corresponding open strip box (15). Multiple sliding air pipes (17) are equidistantly arranged on the strip floats (16). Multiple air pumps (19) are circumferentially connected to the top outer side of the air box (25). Multiple fixed air pipes (18) are connected to the top outer side of the air box (25). The top of each sliding air pipe (17) is slidably inserted into the corresponding fixed air pipe (18). The top of each fixed air pipe (18) is connected to the outlet of the corresponding air pump (19). Each open strip box (15) is equipped with a liquid level sensing switch (20) electrically connected to the corresponding air pump (19). The aquaculture tank (1) is equipped with a cleaning mechanism, which includes a suction tube (6). The suction tube (6) is vertically connected to the piston plate (5). The top of the suction tube (6) passes through the top of the aquaculture tank (1) and the top of the air box (25) from bottom to top. The top of the suction tube (6) is connected to a sludge pump (22).

2. The device for regulating oxygen content in photophytic water bodies according to claim 1, characterized in that, The bottom end of the sliding air tube (17) passes through the corresponding strip float (16), and both ends of the sliding air tube (17) are open.

3. The device for regulating oxygen content in photophytic water bodies according to claim 1, characterized in that, The bottom end of the straw (6) is provided with a plurality of auxiliary tubes (7) in a circumferential manner. The auxiliary tubes (7) are connected to the straw (6). The bottom of the auxiliary tubes (7) is provided with a plurality of suction holes (23) at equal intervals.

4. The device for regulating oxygen content in photophytic water bodies according to claim 1, characterized in that, The breeding tube (1), air box (25) and open strip box (15) are all transparent glass bodies.

5. The device for regulating oxygen content in photophytic water bodies according to claim 4, characterized in that, The light source assembly includes a conical connecting cover (2), which is connected to the bottom of the breeding tube (1). Multiple first light source lamps (3) are evenly distributed on the inner wall of the conical connecting cover (2), and multiple second light source lamps (24) are evenly distributed on the inner top of the air box (25).

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