An integrated device for outdoor cultivation of microalgae

By combining a self-shrinking shading mechanism with a color-changing acrylic panel, the spectral control of the microalgae cultivation device is precisely controlled, solving the problems of insufficient and excessive light in traditional devices, improving biomass and astaxanthin accumulation efficiency, and reducing energy consumption.

CN224411771UActive Publication Date: 2026-06-26ATUSH SELENIUM CHAIN BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ATUSH SELENIUM CHAIN BIOTECHNOLOGY CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional microalgae cultivation devices suffer from insufficient shading during the green cell stage, leading to photoinhibition. During the red cell stress stage, strong light can easily damage the algae. Furthermore, manual operation cannot respond to changes in sunlight in real time, affecting biomass accumulation and astaxanthin synthesis.

Method used

The design employs a self-shrinking shading mechanism and a color-changing acrylic panel. It automatically adjusts the unfolding range of the shading net according to the light intensity and achieves precise spectral control by linking the color change of the acrylic panel.

Benefits of technology

It solved the problem of lag in manual operation, achieved increased biomass production, accelerated astaxanthin accumulation, and reduced energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to microalgae cultivation technical field discloses a kind of microalgae outdoor cultivation integrated device, including the support of four columns, the top end of the support swing installation is self retracting sunshade mechanism, the self retracting sunshade mechanism includes self retracting sunshade net, driving assembly is installed on the support and drives self retracting sunshade net contraction, further including adjustable color acrylic plate installed on the support and located below self retracting sunshade net. Through the design of self retracting sunshade mechanism cooperation colorable acrylic plate, self retracting sunshade mechanism can be automatically adjusted according to real-time light intensity self retracting sunshade net's unfolding range, acrylic plate can show different color in green cell stage and red cell stress stage, and with self retracting sunshade net linkage control, realize the accurate control of spectrum, solve artificial operation hysteresis problem, achieve the core purpose of biomass yield, astaxanthin accumulation speed up, and reduce energy consumption.
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Description

Technical Field

[0001] This utility model relates to the field of microalgae cultivation technology, specifically to an integrated device for outdoor microalgae cultivation. Background Technology

[0002] Microalgae cultivation refers to the technical process of large-scale cultivation, management, and harvesting of single-celled or simple multicellular microalgae under controlled or semi-controlled environmental conditions through artificial intervention. Its core lies in utilizing the photosynthetic characteristics of microalgae to transform them into high-value biological resources.

[0003] Traditional microalgae cultivation devices require manual switching of shading facilities, which presents the following problems:

[0004] 1. Insufficient shading during the green cell stage leads to photoinhibition, while excessive shading reduces biomass accumulation;

[0005] 2. The erythrocyte stress stage requires strong light to induce astaxanthin synthesis, but sudden strong light can easily damage algae, and manual operation cannot respond to changes in sunlight in real time. Therefore, we need to propose an integrated outdoor microalgae cultivation device. Utility Model Content

[0006] The purpose of this invention is to provide an integrated outdoor microalgae cultivation device. Through a self-shrinking shading mechanism combined with a color-changing acrylic panel, the self-shrinking shading mechanism automatically adjusts the deployment range of the self-shrinking shading net according to real-time light intensity. The acrylic panel displays different colors during the green cell stage and the red cell stress stage, and is linked with the self-shrinking shading net for precise spectral control. This solves the problem of lag in manual operation, achieving the core objectives of increased biomass production, accelerated astaxanthin accumulation, and reduced energy consumption, thereby addressing the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated outdoor microalgae cultivation device, comprising a support frame composed of four columns, a self-retracting shading mechanism movably mounted on the top of the support frame, the self-retracting shading mechanism comprising a non-expanding mode for dealing with the red blood cell stress stage and a self-retracting shading net with an expansion range of -% for dealing with the green cell growth stage, a driving component for driving the self-retracting shading net to contract on the support frame, and a contraction component for supporting the stable contraction of the self-retracting shading net at the bottom of the self-retracting shading net;

[0008] It also includes a color-adjustable acrylic panel mounted on a bracket and located below the self-shrinking shade net, the acrylic panel having a built-in electrochemical variable layer, the color display mode of the acrylic panel being linked to the shrinkage state of the self-shrinking shade net for control.

[0009] Preferably, the drive assembly includes a lead screw rotatably mounted between two columns, the outer wall of the lead screw being threadedly connected to a lead screw seat, and the lead screw seat being connected to one end of the self-shrinking shade net.

[0010] Preferably, the drive assembly further includes a motor, one end of the output shaft of the motor is sleeved with a second pulley, one end of the lead screw passes through the column and is sleeved with a first pulley, and the first pulley and the second pulley are connected by a belt drive.

[0011] Preferably, the shrinking assembly includes a rotating base and two shrinking rods rotatably mounted on the rotating base, with the ends of the two shrinking rods rotatably mounted on the lower ends of the self-shrinking shade net.

[0012] Preferably, a sleeve is connected to the end of the retractable rod, and a fixed post is connected to the bottom of both ends of the self-retracting shade net. The sleeve is rotatably installed on the outer wall of the fixed post, and a telescopic rod is installed between the two retractable rods.

[0013] Preferably, it also includes a microalgae cultivation mechanism located between the four pillars, the microalgae cultivation mechanism including a centrifugal pump, a steel frame, pipes and a pipe reactor, the pipes being arranged in a continuous bend.

[0014] Preferably, the pipe is installed inside the steel frame, one end of the pipe is connected to a centrifugal pump, the other end of the pipe is connected to a pipe reactor, and the pipe reactor is connected to the centrifugal pump.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a self-shrinking shading mechanism in conjunction with a color-changing acrylic panel. The self-shrinking shading mechanism can automatically adjust the unfolding range of the self-shrinking shading net according to the real-time light intensity. The acrylic panel can display different colors during the green cell stage and the red cell stress stage, and is linked with the self-shrinking shading net for precise spectral control.

[0017] 2. This utility model solves the problem of lag in manual operation, and achieves the core objectives of increasing biomass production, accelerating astaxanthin accumulation, and reducing energy consumption. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the structure of the self-retracting sunshade mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the shrink-fit component of this utility model;

[0021] Figure 4This is a schematic diagram of the microalgae cultivation mechanism of this utility model.

[0022] In the picture:

[0023] 1. Column; 11. Support plate;

[0024] 2. Self-retracting shading mechanism; 21. Self-retracting shading net; 22. Motor; 23. Lead screw; 24. Lead screw seat; 25. Pulley 1; 26. Pulley 2; 27. Belt; 28. Retraction assembly;

[0025] 281. Telescopic rod; 282. Fixed post; 283. Sleeve; 284. Rotating seat; 285. Telescopic rod;

[0026] 3. Acrylic sheet;

[0027] 4. Microalgae cultivation facility; 41. Centrifugal pump; 42. Steel frame; 43. Pipeline; 44. Pipeline reactor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-4 This utility model provides a technical solution: an integrated outdoor microalgae cultivation device, including a support frame composed of four columns 1 arranged in a matrix, and the cross-section of the columns 1 is L-shaped, which not only increases the stability of the support frame but also saves materials. A self-retracting shading mechanism 2 is movably installed at the top of the support frame. The self-retracting shading mechanism 2 can automatically adjust the shading range according to the light intensity, which is beneficial to the light requirements of microalgae at different growth stages.

[0030] The self-contracting shading mechanism 2 includes a non-expanding mode to cope with the red blood cell stress stage and a self-contracting shading net 21 with a 50-100% expansion range to cope with the green cell growth stage. During the green cell growth stage, the self-contracting shading mechanism 2 has a 50-100% expansion range to avoid the problems of insufficient shading leading to light inhibition and excessive shading reducing biomass accumulation. During the red blood cell stress stage, the self-contracting shading mechanism 2 does not expand to enhance natural light.

[0031] The bracket is equipped with a drive assembly for retracting the self-retracting shade net 21. The bottom of the self-retracting shade net 21 is provided with a shrinkage assembly 28 for supporting the stable shrinkage of the self-retracting shade net 21. The shrinkage assembly 28 plays an auxiliary supporting role in the unfolding of the self-retracting shade net 21.

[0032] It also includes a color-adjustable acrylic panel 3 mounted on a bracket and located below the self-shrinking shade net 21. The acrylic panel 3 has a built-in electrochemical variable layer, and the color display mode of the acrylic panel 3 is linked to the shrinkage state of the self-shrinking shade net 21 for control.

[0033] It is worth noting that each column 1 has a support plate 11 installed on its side, and the acrylic plate 3 is set on the four support plates 11.

[0034] During the green cell stage, the color of acrylic plate 3 is adjusted to red to promote photosynthesis; during the red cell stress stage, acrylic plate 3 is adjusted to blue-purple to efficiently induce astaxanthin synthesis.

[0035] The drive assembly includes a lead screw 23 rotatably mounted between two columns 1. The outer wall of the lead screw 23 is threadedly connected to a lead screw seat 24, which is connected to one end of the self-shrinking shade net 21.

[0036] The drive assembly also includes a motor 22, one end of the output shaft of the motor 22 is fitted with a second pulley 26, one end of the lead screw 23 passes through the column 1 and is fitted with a first pulley 25, and the first pulley 25 and the second pulley 26 are connected by a belt 27.

[0037] The motor 22 drives the lead screw 23 to rotate via the belt 27 and two pulleys. The lead screw 23 drives the lead screw seat 24 to move linearly, which in turn causes the self-contracting shade net 21 to begin to unfold.

[0038] The device also includes a control center and a photosensitive sensor (not shown in the figure). The photosensitive sensor is connected to the acrylic plate 3, and both the photosensitive sensor and the motor 22 are electrically connected to the control center. The light intensity signal received by the photosensitive sensor is transmitted to the control center, which then controls the motor 22 to work, thereby adjusting the unfolding range of the self-retracting shade net 21.

[0039] Light intensity > 300 μmol / m 2 At a rate of / s, for every 100μmol increase, the self-contracting shade net 21 contracts by 20%, and in heavy rain, the self-contracting shade net 21 fully expands.

[0040] The retractable assembly 28 includes a rotating base 284 and two retractable rods 281 rotatably mounted on the rotating base 284. The ends of the two retractable rods 281 are respectively rotatably mounted on the lower ends of the self-retractable shade net 21. During the retraction of the self-retractable shade net 21, the angle between the two retractable rods 281 changes.

[0041] The end of the retractable rod 281 is connected to a sleeve 283, and the bottom of both ends of the self-retractable sunshade net 21 are connected to a fixed post 282. The sleeve 283 is rotatably mounted on the outer wall of the fixed post 282, and a telescopic rod 285 is installed between the two retractable rods 281.

[0042] The two ends of the telescopic rod 285 are rotatably connected to the two retractable rods 281 respectively.

[0043] It also includes a microalgae cultivation mechanism 4 located between four columns 1. The microalgae cultivation mechanism 4 includes a centrifugal pump 41, a steel frame 42, a pipe 43 and a pipe reactor 44. The pipe 43 is arranged in a continuous bend.

[0044] The pipe 43 is installed inside the steel frame 42. One end of the pipe 43 is connected to the centrifugal pump 41, and the other end of the pipe 43 is connected to the pipe reactor 44, which is connected to the centrifugal pump 41.

[0045] During use, a photosensitive sensor (not shown in the figure) receives and detects the light intensity in real time. The self-retracting shading mechanism automatically adjusts the shading range according to the light intensity. During the green cell stage, the unfolding range of the self-retracting shading net 21 needs to be adjusted to 50-100% to avoid insufficient shading leading to light inhibition and excessive shading reducing biomass accumulation. Specifically, the motor 22 drives the lead screw 23 to rotate through the belt 27 and two pulleys. The lead screw 23 drives the lead screw seat 24 to move linearly, thereby causing the self-retracting shading net 21 to begin unfolding. The self-retracting shading net 21 stops when it has unfolded to more than half its length, thus reducing the damage from strong light.

[0046] During the green cell stage, the color of acrylic plate 3 is adjusted to red mode to promote photosynthesis;

[0047] During the red blood cell stress stage, the self-shrinking shade net 21 is fully retracted (without unfolding) by the drive component to enhance natural light, and the acrylic plate 3 is adjusted to a blue-purple mode to efficiently induce astaxanthin synthesis.

[0048] 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. An integrated device for outdoor cultivation of microalgae, characterized by: The system includes a support frame consisting of four columns (1), with a self-shrinking shading mechanism (2) movably mounted on the top of the support frame. The self-shrinking shading mechanism (2) includes a non-expanding mode for dealing with red blood cell stress and a self-shrinking shading net (21) with a 50-100% expansion range for dealing with green cell growth. A drive assembly for driving the self-shrinking shading net (21) to shrink is mounted on the support frame, and a shrinking assembly (28) for supporting the stable shrinking of the self-shrinking shading net (21) is provided at the bottom of the self-shrinking shading net (21). It also includes a color-adjustable acrylic panel (3) mounted on a bracket and located below the self-shrinking shade net (21), the acrylic panel (3) having a built-in electrochemical variable layer, the color display mode of the acrylic panel (3) being linked to the shrinkage state of the self-shrinking shade net (21) for control.

2. The integrated device for outdoor cultivation of microalgae according to claim 1, characterized in that: The drive assembly includes a lead screw (23) rotatably mounted between two columns (1), and a lead screw seat (24) is threadedly connected to the outer wall of the lead screw (23). The lead screw seat (24) is connected to one end of the self-shrinking shade net (21).

3. The integrated device for outdoor cultivation of microalgae according to claim 2, characterized in that: The drive assembly also includes a motor (22), one end of the output shaft of the motor (22) is fitted with a second pulley (26), one end of the lead screw (23) passes through the column (1) and is fitted with a first pulley (25), and the first pulley (25) and the second pulley (26) are connected by a belt (27).

4. The integrated device for outdoor cultivation of microalgae according to claim 1, characterized in that: The shrinking assembly (28) includes a rotating seat (284) and two shrinking rods (281) rotatably mounted on the rotating seat (284). The ends of the two shrinking rods (281) are respectively rotatably mounted on the lower ends of the self-shrinking shade net (21).

5. The integrated device for outdoor cultivation of microalgae according to claim 4, characterized in that: The end of the retractable rod (281) is connected to a sleeve (283), and the bottom of both ends of the self-retractable sunshade net (21) is connected to a fixed post (282). The sleeve (283) is rotatably installed on the outer wall of the fixed post (282), and a telescopic rod (285) is installed between the two retractable rods (281).

6. The integrated device for outdoor cultivation of microalgae according to claim 1, characterized in that: It also includes a microalgae cultivation mechanism (4) located between four columns (1), the microalgae cultivation mechanism (4) including a centrifugal pump (41), a steel frame (42), pipes (43) and a pipe reactor (44), the pipes (43) being arranged in a continuous bend.

7. The integrated outdoor microalgae cultivation device according to claim 6, characterized in that: The pipe (43) is installed inside the steel frame (42). One end of the pipe (43) is connected to the centrifugal pump (41), and the other end of the pipe (43) is connected to the pipe reactor (44), which is connected to the centrifugal pump (41).