Illumination device for microalgae culture

Abstract

The utility model relates to the technical field of microalgae culture, in particular to an illumination device for microalgae culture, which comprises a support and cross beams fixedly connected to two sides of the support, the illumination device is arranged on the inner side of the support, a culture tank is arranged below the illumination device, the illumination device comprises an LED (light-emitting diode) lamp strip and a light-transmitting lampshade, compared with the prior art, through the synergistic effect of the wave-shaped light-transmitting lampshade and the nanometer reflective coating of the double-layer acrylic plate, multi-angle uniform illumination of the surface layer and the deep layer of a culture solution is achieved, the light-transmitting lampshade is arranged at the bottom of the LED lamp strip, the light-transmitting lampshade is in a wave shape, and flow guide protrusions are fixedly connected to the bottom face of the interior of the culture tank. The problem of light receiving gradient difference caused by insufficient penetrating power of a traditional flat plate light source is solved; a clamping groove plug-in design is adopted, so that the light source assembly and the culture groove can be quickly disassembled and cleaned or longitudinally stacked and expanded; and the mixing efficiency is enhanced by inducing turbulent flow by combining the wave-shaped flow guide bulges.

Description

Technical Field

[0001] This utility model relates to the field of microalgae cultivation technology, specifically to a light-emitting device for microalgae cultivation. Background Technology

[0002] In the process of microalgae cultivation, the uniformity of light, the maintainability of the structure, and the mixing efficiency of the nutrient solution are the key issues that restrict large-scale production.

[0003] In existing technologies, traditional photobioreactors mostly use fixed light sources or flat-panel lamp arrays, which results in significant differences in light intensity between the surface and deep layers of the culture medium. In addition, the integration of the light source components with the culture tank is low, requiring complete disassembly for cleaning and maintenance, which leads to problems such as cumbersome operation and easy damage to precision components.

[0004] Existing technology discloses a microalgae cultivation device, including an incubator, a fluorescent lamp group, a supplemental lighting group, and a light controller. At least one support plate is fixed inside the incubator, each support plate supporting a culture dish. Each support plate is equipped with a fluorescent lamp group and a supplemental lighting group to provide illumination to the culture dish. When the light controller receives information about the microalgae type and the volume of the culture dish, it adjusts the light intensity of the fluorescent lamp group and the supplemental lighting group until a preset light intensity is achieved. It also adjusts the light-dark ratio of the fluorescent lamp group and the supplemental lighting group until a preset light-dark ratio is achieved. The light intensity and light-dark ratio of the mixed light are automatically adjusted according to the microalgae type and the volume of the culture dish to ensure appropriate light intensity and illumination duration for microalgae reproduction, enabling stable and efficient microalgae reproduction and improving the cultivation quality.

[0005] While some devices improve the uniformity of light intensity distribution through spiral reflective structures or inverted conical light guide units, the reflective components are fixedly connected to the culture tank, making it impossible to quickly replace or expand the modules. This limits the adaptability to different culture stages. Currently, there is an urgent need for a microalgae culture device that integrates a detachable light source module, a dynamic flow guide structure, and high expandability to simultaneously optimize light energy utilization and culture medium mixing efficiency. Utility Model Content

[0006] To address the aforementioned technical problems or one of the technical problems existing in the prior art, this utility model discloses a light-emitting device for microalgae cultivation, comprising a support frame and crossbeams fixed to both sides of the support frame. The light-emitting device is provided on the inner side of the support frame, and a cultivation tank is provided below the light-emitting device. The light-emitting device includes an LED light strip and a light-transmitting lampshade. The light-transmitting lampshade is located at the bottom of the LED light strip and is wavy. A flow-guiding protrusion is fixed to the bottom surface inside the cultivation tank.

[0007] Furthermore, multiple rows of crossbeams are arranged in parallel on both sides of the support, and the inner side of the crossbeams is provided with slots to provide a modular installation interface, which facilitates quick adjustment of the component layout. Multiple rows of crossbeams enable the stacking of multiple culture units, saving space and improving the culture efficiency per unit area.

[0008] Furthermore, the two ends of the LED light strip are inserted into the inside of the bracket via slots, simplifying the installation process of the lamps and enhancing maintainability. The plug-in design facilitates the replacement or upgrading of the light source, while ensuring the stability of the light strip and preventing displacement from affecting the uniformity of illumination.

[0009] Furthermore, the LED light strip has L-shaped slots on both sides of its bottom surface, and L-shaped blocks are fixed to both sides of the top surface of the light-transmitting lampshade. The light-transmitting lampshade is connected through the L-shaped slots and L-shaped blocks.

[0010] Furthermore, a culture tank connector plate is fixedly connected to the bottom of the culture tank, and the culture tank is inserted into the inner side of the support through the culture tank connector plate, which simplifies the culture tank installation process and enhances maintainability.

[0011] Furthermore, the flow-guiding protrusions are wavy, which promotes the flow of the culture medium and prevents microalgae deposition. The flow-guiding structure enhances the liquid mixing efficiency, ensures uniform distribution of nutrients and gases, and improves the growth rate of microalgae.

[0012] Furthermore, the culture tank is a double-layered hollow acrylic plate in the shape of a cuboid, with a nano-reflective coating filling the interlayer to improve light energy utilization and temperature control performance. The reflective coating in the interlayer reduces light energy loss, and the double-layer structure reduces the impact of external temperature fluctuations on the culture environment, maintaining optimal growth conditions.

[0013] Furthermore, a control box is provided on the top of the bracket, and a control box connector plate is fixedly connected to the top of the control box. The control box is connected to the bracket through the connector plate. The control box is electrically connected to the LED light strip to centrally manage the illumination parameters. The modular control box supports independent adjustment of the illumination intensity and time of different areas to achieve precise cultivation management.

[0014] Furthermore, the top surface of the bracket is provided with T-shaped sliders on both sides, and the bottom surface of the bracket is provided with T-shaped grooves on both sides. The T-shaped sliders and T-shaped grooves are longitudinally aligned to achieve vertical stacking of the brackets. The system scale can be flexibly expanded through standardized interfaces to adapt to different production capacity needs.

[0015] Furthermore, the number of the light-emitting device and the culture tank is not less than one, and the number of the light-emitting device and the culture tank are corresponding.

[0016] Compared with existing technologies, this invention achieves multi-angle uniform illumination of the surface and deep layers of the culture medium through the synergistic effect of the wave-shaped light-transmitting lampshade and the nano-reflective coating of the double-layer acrylic plate, solving the problem of light gradient differences caused by insufficient penetration of traditional flat light sources. The slot-type plug-in design allows the light source components and culture tank to be quickly disassembled for cleaning or vertically stacked for expansion, overcoming the shortcomings of traditional fixed devices that are cumbersome to maintain and have limited volume. Combined with the wave-shaped flow-guiding protrusions that induce turbulence to enhance mixing efficiency, and the programmable adjustment of LED light intensity and wavelength by the control box, it improves the adaptability of algae growth while reducing energy consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 The technical solution adopted by this utility model is as follows: a microalgae cultivation lighting device, including a support 1 and crossbeams 14 fixed to both sides of the support 1. The support 1 is provided with a lighting device on its inner side, and a cultivation tank 4 is provided below the lighting device. The lighting device includes an LED light strip 3 and a light-transmitting lampshade 5. The light-transmitting lampshade 5 is located at the bottom of the LED light strip 3. The light-transmitting lampshade 5 is wavy and is used to convert direct light into diffused light, optimize light distribution and protect the LED light strip. The wavy surface increases the light refractive index, expands the effective irradiation range, and reduces local light intensity overload. The bottom surface inside the cultivation tank 4 is fixed with a flow guiding protrusion 41 to promote algal liquid circulation.

[0022] Preferably, multiple rows of crossbeams 14 are arranged in parallel on both sides of the support 1. The inner side of the crossbeams 14 is provided with a slot 13 to provide a modular installation interface, which facilitates quick adjustment of the component layout. Multiple rows of crossbeams 14 can realize the stacking of multiple culture units, saving space and improving the culture efficiency per unit area.

[0023] Preferably, both ends of the LED light strip 3 are inserted into the inner side of the bracket 1 through the slots 13, which simplifies the lamp installation process, enhances maintainability, and the plug-in design facilitates the replacement or upgrading of the light source. At the same time, it ensures the stability of the light strip and avoids displacement from affecting the uniformity of illumination.

[0024] Preferably, the LED light strip 3 has L-shaped slots on both sides of its bottom surface, and the light-transmitting lampshade 5 has L-shaped blocks fixed to both sides of its top surface. The light-transmitting lampshade 5 is connected by the L-shaped slots and L-shaped blocks. The L-shaped connection enables quick disassembly and assembly, making it easy to clean or replace the lampshade.

[0025] Preferably, a culture tank plug-in plate 7 is fixedly connected to the bottom of the culture tank 4, and the culture tank 4 is plugged into the inner side of the support 1 through the culture tank plug-in plate 7, which simplifies the culture tank installation process and enhances maintainability.

[0026] Preferably, the flow-guiding protrusion 41 is wavy, which promotes the flow of culture medium and prevents microalgae deposition. The flow-guiding structure enhances the liquid mixing efficiency, ensures uniform distribution of nutrients and gases, and improves the growth rate of microalgae.

[0027] Preferably, the culture tank 4 is a rectangular double-layer hollow acrylic plate with a nano-reflective coating in between, which improves light energy utilization and temperature control performance. The reflective coating in between reduces light energy loss, and the double-layer structure reduces the impact of external temperature fluctuations on the culture environment, maintaining optimal growth conditions.

[0028] Preferably, the top of the bracket 1 is provided with a control box 2, and the top of the control box 2 is fixedly connected with a control box plug-in plate 6. The control box 2 is plugged into the bracket 1 through the plug-in plate 6. The control box 2 is electrically connected to the LED light strip 3 to centrally manage the illumination parameters. The modular control box supports independent adjustment of the illumination intensity and time of different areas to achieve precise cultivation management.

[0029] Preferably, the support 1 has T-shaped sliders 11 on both sides of the top surface and T-shaped grooves 12 on both sides of the bottom surface. The T-shaped sliders 11 and T-shaped grooves 12 are longitudinally aligned to achieve vertical stacking of the support 1. The system scale can be flexibly expanded through standardized interfaces to adapt to different production capacity requirements.

[0030] Preferably, the number of the light source and the culture tank 4 is not less than one, and the number of the light source and the number of the culture tank 4 correspond.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lighting device for microalgae cultivation, comprising a support (1) and crosspieces (14) fixed to the support (1) on both sides, characterized in that, The inner side of the bracket (1) is provided with a lighting device, the lower side of the lighting device is provided with a culture tank (4), the lighting device comprises an LED lamp strip (3) and a light-transmitting lamp shade (5), the light-transmitting lamp shade (5) is arranged at the bottom of the LED lamp strip (3), the light-transmitting lamp shade (5) is wave-shaped, and the bottom surface in the culture tank (4) is fixedly connected with a flow guide protrusion (41).

2. The photobioreactor of claim 1, wherein, Parallel rows of cross beams (14) are arranged on the two sides of the bracket (1), and the inner side of the cross beam (14) is provided with a clamping groove (13).

3. The photobioreactor of claim 1, wherein the light source is a light emitting diode (LED). Both ends of the LED lamp strip (3) are inserted into the inner side of the bracket (1) through the clamping groove (13).

4. The photobioreactor of claim 1, wherein, L-shaped clamping grooves are arranged on the bottom surface of the LED lamp strip (3), L-shaped clamping blocks are fixedly connected to the top surface of the light-transmitting lamp shade (5), and the light-transmitting lamp shade (5) is connected through the L-shaped clamping grooves and the L-shaped clamping blocks.

5. The photobioreactor of claim 1, wherein the light source is a light emitting diode (LED). The bottom of the culture tank (4) is fixedly connected with a culture tank insertion plate (7), and the culture tank (4) is inserted into the inner side of the bracket (1) through the culture tank insertion plate (7).

6. The photobioreactor of claim 1, wherein, The flow guide protrusion (41) is wave-shaped.

7. The photobioreactor of claim 1, wherein, The culture tank (4) is a double-layer hollow acrylic plate in the shape of a cuboid, and a nano light-reflecting coating is filled in the interlayer.

8. The photobioreactor of claim 1, wherein, The top of the bracket (1) is provided with a control box (2), the top of the control box (2) is fixedly connected with a control box insertion plate (6), the control box (2) is inserted into the bracket (1) through the insertion plate (6), and the control box (2) is electrically connected with the LED lamp strip (3).

9. The photobioreactor of claim 1, wherein, T-shaped sliding blocks (11) are arranged on the top surface of the bracket (1), T-shaped sliding grooves (12) are arranged on the bottom surface of the bracket (1), and the longitudinal positions of the T-shaped sliding blocks (11) and the T-shaped sliding grooves (12) correspond to each other.

10. The photobioreactor of claim 1, wherein, The number of the lighting device and the culture tank (4) is not less than one, and the number of the lighting device and the culture tank (4) corresponds.

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