Multilayered jacketed microalgal carbon capture and energy production photobioreactor device

By using a multi-layered, sleeve-type microalgae carbon fixation energy-producing photoreactor with a fixed light source and alternating light and dark environments, the problem of mismatch between the moving speed of the light strip and the flow speed of microalgae has been solved, thereby improving the photosynthetic and carbon fixation efficiency of microalgae and reducing maintenance difficulty and cost.

CN224350673UActive Publication Date: 2026-06-12SHANGHAI SANCITY ENVIRONMENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-11
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

In existing microalgae photoreactors, the movement speed of the light strip is not matched with the flow speed of the microalgae, resulting in the microalgae receiving too little or too much light, which affects the "flash effect" and reduces carbon fixation efficiency.

Method used

The multi-layered sleeve-type microalgae carbon fixation energy-producing photoreactor, which uses a fixed light source, ensures that microalgae are evenly distributed in light and dark environments by alternating the setting of light and shadow components and controlling the alternation of light and dark by the drive component. Temperature sensors, pH sensors and carbon dioxide concentration sensors are used for real-time monitoring and adjustment.

Benefits of technology

It improves the photosynthetic efficiency and carbon fixation efficiency of microalgae, reduces maintenance complexity, lowers operation difficulty and cost, and achieves efficient carbon fixation of microalgae under stable light conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of multilayer sleeve type microalgae carbon fixation energy production light reactor device, it is related to the field of microalgae carbon fixation, including hollow sleeve reactor and drive assembly, the hollow of hollow sleeve reactor is provided with two LED fluorescent tubes, the bottom of the outer wall of hollow sleeve reactor is integrally fixed with bottom plate, the outer wall of one side of hollow sleeve reactor is provided with four fluid tubes, the end of each fluid tube is connected by U-shaped connecting pipe, the outer wall of four fluid tubes is staggered distribution has two groups of illumination pieces and two groups of shielding piece, each group of illumination piece is formed by twelve arc plates, every two arc plates are matched to form a complete ring, each group of shielding piece is formed by two matched semicircular plates, the utility model uses fixed light source, eliminates the problem that lamp strip moving speed and microalgae flow speed do not match, can accurately control light and dark alternation and uniform illumination distribution, the photosynthesis efficiency of microalgae is improved, and microalgae carbon fixation efficiency is improved.
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Description

Technical Field

[0001] This utility model mainly relates to the technical field of microalgae carbon fixation, specifically a multi-layer sleeve-type microalgae carbon fixation energy-producing photoreactor device. Background Technology

[0002] In recent years, with the increasing severity of global climate change, microalgae carbon fixation technology has received widespread attention due to its high efficiency and environmental friendliness. Microalgae carbon fixation technology absorbs carbon dioxide through photosynthesis and converts it into biomass energy, effectively mitigating the greenhouse effect.

[0003] A photoreactor for achieving the "flash effect" of microalgae, as described in the prior art, includes a base plate, a cabinet-type reactor disposed on the top surface of the base plate, a support assembly connected to the top surface of the base plate, two sets of support assemblies mirrored each other, a pipe-type reactor disposed between the two sets of support assemblies, the pipe-type reactor having a serpentine structure, both ends of the pipe-type reactor being connected through to the side wall of the cabinet-type reactor, a drive assembly connected between the two sets of support assemblies, and a first steering assembly and a second steering assembly rotatably connected between the two sets of support assemblies.

[0004] While the aforementioned technology can simulate a flashing effect by moving the light strip, which is beneficial for improving the efficiency of photosynthesis and carbon fixation of microalgae and promotes algal cell growth, if the speed of the light strip movement does not match the flow speed of the microalgae, the light exposure time received by the microalgae may be too short or too long, affecting the effect of the "flashing effect" and thus reducing the carbon fixation efficiency. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a multi-layer sleeve-type microalgae carbon fixation energy-producing photoreactor device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device includes a hollow sleeve reactor and a drive assembly. Two LED tubes are installed in the hollow part of the hollow sleeve reactor. A base plate is integrally fixed to the bottom of the outer wall of the hollow sleeve reactor. Four fluid tubes are installed on one side of the outer wall of the hollow sleeve reactor. The ends of each fluid tube are connected by a U-shaped connecting pipe. Two sets of lighting elements and two sets of blocking elements are staggered on the outer walls of the four fluid tubes. Each set of lighting elements is composed of twelve arc-shaped plates. Every two arc-shaped plates match to form a complete ring. Each set of blocking elements is composed of two matching semi-circular plates.

[0008] The drive assembly is mounted on the base plate and is used to control the opening and closing of the arc plate and the semi-circular plate. Temperature sensors, pH sensors and carbon dioxide concentration sensors are respectively installed on the inner wall of the hollow tube reactor.

[0009] Specifically, in this technical solution, each of the arc-shaped plates has a groove on its inner wall, and an LED light strip is bonded to each of the grooves;

[0010] Each of the semi-circular plates has an arc-shaped rubber pad adhered to the inner wall of its end, and each rubber pad is in close contact with the outer wall of the corresponding fluid pipe.

[0011] Specifically, the driving assembly includes two side plates, the bottom ends of which are fixed to the upper surface of the base plate with screws. A rotating shaft is rotatably mounted between the two side plates. The outer wall of the rotating shaft is symmetrically provided with threads in opposite directions. A drive motor is mounted on the outer wall of one of the side plates by screws. The output end of the drive motor is connected to the rotating shaft through a coupling. Movable plates are sleeved on the outer wall of the rotating shaft at two threads. Two second connecting blocks and two first connecting blocks are staggered above the two movable plates. Each first connecting block is fixed to the outer wall of the corresponding arc-shaped plate with screws, and each second connecting block is fixed to the outer wall of the corresponding semi-circular plate with screws.

[0012] Specifically, in this technical solution, each of the first connecting blocks and the second connecting blocks is fixedly connected by a connecting plate, and the top of each of the movable plates is fixedly connected to the bottommost first connecting block.

[0013] Specifically, each of the movable plates is provided with support rods on both sides, the top of each support rod is fixedly connected to the lower surface of the first connecting block, the bottom of each support rod is embedded with a ball bearing, and each ball bearing is in sliding contact with the upper surface of the base plate.

[0014] Specifically, in this technical solution, the top of the hollow sleeve reactor is fixed with a mounting plate by screws, a horizontal plate is provided in the center of the hollow part of the hollow sleeve reactor, and mounting brackets are fixed on the lower surface of both the mounting plate and the horizontal plate. The two LED tubes are respectively installed in the mounting brackets, and the upper surface of the horizontal plate and the lower surface of the mounting plate are fixedly connected by the mounting brackets.

[0015] Specifically, in this technical solution, a pump body is installed inside the hollow tube reactor. The pump body's output port is connected to the inlet of the lowest fluid pipe, and the outlet of the highest fluid pipe is connected to the top of the outer wall of the hollow tube reactor.

[0016] In summary, this utility model has the following advantages: by using a fixed light source, the problem of mismatch between the moving speed of the light strip and the flow speed of the microalgae is eliminated. The light source is fixed, and the microalgae flow with the culture medium in the fluid tube. When flowing through the illuminated area, they are illuminated, and when flowing through the shaded area, they enter the dark environment. This allows for precise control of light and dark alternation and uniform light distribution, thereby improving the photosynthetic efficiency of the microalgae, effectively absorbing and fixing carbon dioxide, and enhancing the overall carbon fixation efficiency of the microalgae in the device.

[0017] Furthermore, the fixed light source reduces the complex maintenance work required due to the movement of the light strip, while the stable lighting conditions also facilitate the monitoring and management of the microalgae growth process, reducing the difficulty of operation and maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front axis structure of the device of this utility model;

[0019] Figure 2 This is a schematic diagram of the separation structure of the light-illuminating component and the blocking component of this utility model;

[0020] Figure 3 This utility model Figure 2 Front view structural diagram;

[0021] Figure 4 This is a schematic diagram of the oblique axis structure of the light-illuminating component and the blocking component of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0023] Figure Descriptions: 1. Hollow tube reactor; 101. Pump body; 102. Fluid pipe; 103. U-shaped connecting pipe; 104. Base plate; 2. Mounting plate; 201. Mounting bracket; 202. LED tube; 203. Horizontal plate; 3. Arc plate; 301. Groove; 302. LED light strip; 4. Semi-circular plate; 401. Rubber pad; 5. Drive assembly; 501. Side plate; 502. Drive motor; 503. Rotating shaft; 504. Moving plate; 505. First connecting block; 506. Second connecting block; 507. Connecting plate; 6. Support rod; 601. Ball bearing. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] It should be noted that the hollow tube reactor 1, the fluid tube 102, and the U-shaped connecting tube 103 are all made of transparent materials to ensure that light can pass through and not affect the photosynthesis of microalgae.

[0027] Furthermore, a controller is installed on the outer wall of the hollow tube reactor 1. The controller contains an optical fiber system and an intelligent control system. The optical fiber system is used to transmit the light signals of the LED tube 202 and the LED strip 302. The intelligent control system is used to automatically adjust the light intensity and the flow rate of the pump 101 based on the data monitored in real time by the temperature sensor, pH sensor and carbon dioxide concentration sensor.

[0028] In this embodiment, please refer to Figures 1-5 As shown, a multi-layer sleeve-type microalgae carbon fixation energy photoreactor device includes a hollow sleeve reactor 1 and a drive assembly 5. Two LED tubes 202 are installed in the hollow part of the hollow sleeve reactor 1. The top of the hollow sleeve reactor 1 is fixed with a mounting plate 2 by screws. A horizontal plate 203 is provided in the center of the hollow part of the hollow sleeve reactor 1. Mounting brackets 201 are fixed on the lower surface of both the mounting plate 2 and the horizontal plate 203. The two LED tubes 202 are respectively installed in the mounting brackets 201. The upper surface of the horizontal plate 203 is fixedly connected to the lower surface of the mounting plate 2 through the mounting brackets 201. The top and bottom of the side of the hollow sleeve reactor 1 away from the fluid pipe 102 are connected to the liquid inlet pipe and the liquid outlet pipe.

[0029] A base plate 104 is integrally fixed to the bottom of the outer wall of the hollow tube reactor 1. Four fluid pipes 102 are provided on one side of the outer wall of the hollow tube reactor 1. A pump body 101 is installed inside the hollow tube reactor 1. The outlet of the pump body 101 is connected to the inlet of the lowest fluid pipe 102, and the outlet of the highest fluid pipe 102 is connected to the top of the outer wall of the hollow tube reactor 1. The ends of each fluid pipe 102 are connected by a U-shaped connecting pipe 103. Two sets of light are staggered on the outer walls of the four fluid pipes 102. The device includes a light source and two sets of shielding components. Each set of light sources consists of twelve arc-shaped plates 3. Every two arc-shaped plates 3 match to form a complete ring. The inner wall of each arc-shaped plate 3 has a groove 301. An LED light strip 302 is attached to each groove 301. Each set of shielding components consists of two matching semi-circular plates 4. An arc-shaped rubber pad 401 is attached to the inner wall of the end of each semi-circular plate 4. Each rubber pad 401 is in close contact with the outer wall of the corresponding fluid pipe 102, which can effectively block the light.

[0030] The drive assembly 5 is mounted on the base plate 104. The drive assembly 5 is used to control the opening and closing of the arc plate 3 and the semi-circular plate 4. Temperature sensors, pH sensors and carbon dioxide concentration sensors are respectively installed on the inner wall of the hollow tube reactor 1.

[0031] During microalgae carbon fixation, the culture medium is injected into the hollow tube reactor 1 through the inlet pipe. Then, the device is activated by the controller, simultaneously lighting up the LED tube 202 and several LED strips 302. The LED tube 202 provides uniform illumination to the culture medium within the hollow tube reactor 1. Next, the pump 101 starts operating, driving the culture medium to flow in from the inlet of the fluid pipe 102, circulating through the U-shaped connecting pipe 103. When passing through the fluid pipe 102 with its lighting element, the LED strips 302 within the lighting element provide additional illumination, enhancing photosynthetic efficiency. The culture medium then flows through the fluid pipe 102 with its shading element... At 02, the shielding device effectively blocks external light, allowing the system to enter a dark environment and ensuring the "flash effect." This promotes the growth of microalgae in an alternating light and dark environment, enhancing carbon fixation. Finally, the fluid is discharged back into the hollow tube reactor 1 from the outlet of the uppermost fluid pipe 102, forming a closed loop. Temperature, pH, and carbon dioxide concentration sensors monitor environmental parameters inside the reactor in real time and transmit the data to the controller. The intelligent control system in the controller performs algorithm analysis and dynamically adjusts the light intensity and circulation flow rate to ensure that the microalgae efficiently fix carbon in the most suitable environment. At the same time, the system records various data.

[0032] By adopting a fixed light source, the problem of mismatch between the moving speed of the light strip and the flow speed of microalgae is eliminated. It can accurately control the alternation of light and dark and the uniform light distribution, thereby improving the photosynthetic efficiency of microalgae, effectively absorbing and fixing carbon dioxide, and improving the overall carbon fixation efficiency of microalgae in the device. In addition, the fixed light source reduces the complex maintenance work required due to the movement of the light strip. At the same time, the stable light conditions also facilitate the monitoring and management of the growth process of microalgae, reducing the difficulty of operation and maintenance costs.

[0033] Please see Figure 1 , Figure 2 and Figure 4 As shown, the drive assembly 5 includes two side plates 501. The bottom ends of both side plates 501 are fixed to the upper surface of the base plate 104 with screws. A rotating shaft 503 is rotatably mounted between the two side plates 501. The outer wall of the rotating shaft 503 is symmetrically provided with threads in opposite directions. A drive motor 502 is mounted on the outer wall of one side plate 501 by screws. The output end of the drive motor 502 is connected to the rotating shaft 503 through a coupling. A movable plate 504 is sleeved on the outer wall of the rotating shaft 503 at the two threads. Two second connecting blocks 506 and two first connecting blocks 505 are staggered above the two movable plates 504. Each first connecting block 505 is fixed to the outer wall of the corresponding arc-shaped plate 3 with screws, and each second connecting block 506 is fixed to the outer wall of the corresponding semi-circular plate 4 with screws.

[0034] Each first connecting block 505 and the second connecting block 506 are fixedly connected by a connecting plate 507. The top of each movable plate 504 is fixedly connected to the bottommost first connecting block 505. Each movable plate 504 has a support rod 6 on both sides. The top of each support rod 6 is fixedly connected to the lower surface of the first connecting block 505. Each support rod 6 has a ball bearing 601 embedded in its bottom end. Each ball bearing 601 slides in contact with the upper surface of the base plate 104.

[0035] When maintenance is required, the operator starts the drive motor 502 via the controller. The output of the drive motor 502 drives the rotating shaft 503 to rotate, causing the two moving plates 504 to move relative to each other due to the opposite direction of the threads. The moving moving plates 504 drive the first connecting block 505 to move. The first connecting block 505 drives the second connecting block 506 to move synchronously through the connecting plate 507, thereby causing the arc plate 3 and the semi-circular plate 4 to move as a whole, thus completing the separation of the lighting element and the blocking element, and fully exposing the fluid pipe 102. The support rod 6 and the ball bearing 601 enable smooth movement and reduce friction loss. Then, the operator can replace the broken LED light strip 302 or perform other necessary maintenance operations. The entire maintenance process is efficient and convenient, greatly improving the service life and operational stability of the equipment.

[0036] The working principle of this utility model is as follows:

[0037] During microalgal carbon fixation, the culture medium is injected into the hollow tube reactor 1 through the inlet pipe. Then, the device is activated by the controller, and the LED tube 202 and several LED strips 302 are lit simultaneously. The LED tube 202 evenly irradiates the culture medium in the hollow tube reactor 1. Then, the pump 101 starts working, driving the culture medium to flow in from the inlet of the fluid tube 102 and circulate through the U-shaped connecting pipe 103. When it passes through the fluid tube 102 with the light-emitting element, the LED strips 302 in the light-emitting element provide additional light, enhancing the photosynthetic efficiency. When it passes through the fluid tube 102 with the blocking element, the blocking element effectively blocks the external light, allowing it to enter a dark environment, ensuring the "flash effect" and promoting the growth of microalgae in the alternating light and dark environment, thus improving the carbon fixation effect. Finally, it is discharged back into the hollow tube reactor 1 from the outlet of the fluid tube 102 at the top, forming a closed loop.

[0038] 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. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device, comprising a hollow sleeve reactor (1) and a drive assembly (5), characterized in that, The hollow tube reactor (1) has two LED tubes (202) installed in the hollow part. The bottom of the outer wall of the hollow tube reactor (1) is integrally fixed with a base plate (104). Four fluid tubes (102) are installed on one side of the outer wall of the hollow tube reactor (1). The end of each fluid tube (102) is connected by a U-shaped connecting pipe (103). The outer walls of the four fluid tubes (102) are staggered with two sets of lighting elements and two sets of shielding elements. Each set of lighting elements is composed of twelve arc plates (3). Every two arc plates (3) match to form a complete ring. Each set of shielding elements is composed of two matching semi-circular plates (4). The drive assembly (5) is mounted on the base plate (104). The drive assembly (5) is used to control the opening and closing of the arc plate (3) and the semi-circular plate (4). The inner wall of the hollow tube reactor (1) is equipped with a temperature sensor, a pH sensor and a carbon dioxide concentration sensor.

2. The multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device according to claim 1, characterized in that, Each of the arc-shaped plates (3) has a groove (301) on its inner wall, and an LED light strip (302) is bonded to each of the grooves (301); Each of the semi-circular plates (4) has an arc-shaped rubber pad (401) bonded to the inner wall of its end, and each of the rubber pads (401) is in close contact with the outer wall of the corresponding fluid pipe (102).

3. The multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device according to claim 1, characterized in that, The drive assembly (5) includes two side plates (501). The bottom ends of the two side plates (501) are fixed to the upper surface of the base plate (104) with screws. A rotating shaft (503) is rotatably installed between the two side plates (501). The outer wall of the rotating shaft (503) is symmetrically provided with threads in opposite directions. A drive motor (502) is installed on the outer wall of one of the side plates (501) by screws. The output end of the drive motor (502) is connected to the rotating shaft (503) through a coupling. The outer wall of the rotating shaft (503) is fitted with a movable plate (504) at the two threads. Two second connecting blocks (506) and two first connecting blocks (505) are staggered above the two movable plates (504). Each first connecting block (505) is fixed to the outer wall of the corresponding arc plate (3) with screws. Each second connecting block (506) is fixed to the outer wall of the corresponding semi-circular plate (4) with screws.

4. The multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device according to claim 3, characterized in that, Each of the first connecting blocks (505) and the second connecting blocks (506) is fixedly connected by a connecting plate (507), and the top of each of the moving plates (504) is fixedly connected to the bottommost first connecting block (505).

5. The multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device according to claim 4, characterized in that, Each of the movable plates (504) is provided with a support rod (6) on both sides. The top of each support rod (6) is fixedly connected to the lower surface of the first connecting block (505). Each support rod (6) has a ball (601) embedded in its bottom end. Each ball (601) is in sliding contact with the upper surface of the base plate (104).

6. The multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device according to claim 1, characterized in that, The top of the hollow tube reactor (1) is fixed with a mounting plate (2) by screws. A horizontal plate (203) is provided in the center of the hollow part of the hollow tube reactor (1). Mounting brackets (201) are fixed on the lower surface of the mounting plate (2) and the horizontal plate (203). Two LED tubes (202) are respectively installed in the mounting brackets (201). The upper surface of the horizontal plate (203) and the lower surface of the mounting plate (2) are fixedly connected by the mounting brackets (201).

7. The multi-layered sleeve-type microalgae carbon fixation and energy-producing photoreactor device according to claim 1, characterized in that, The hollow tube reactor (1) is equipped with a pump body (101) inside. The outlet of the pump body (101) is connected to the inlet of the lowest fluid pipe (102), and the outlet of the highest fluid pipe (102) is connected to the top of the outer wall of the hollow tube reactor (1).