A dedicated microalgae culture dish

Abstract

The utility model belongs to the technical field of microalgae culture dish, concretely relates to a special microalgae culture dish, including base and the circular ring frame of setting on the base, the one side of circular ring frame is provided with the supporting plate, is provided with the rotating assembly on the supporting plate, is provided with the funnel type culture dish that rotates in the inside of circular ring frame on the rotating assembly, and the top of circular ring frame is provided with two symmetrical through grooves, every through groove inside is provided with magnetic fixing assembly, is provided with L type connecting plate on the magnetic fixing assembly, the side of L type connecting plate near funnel type culture dish is provided with the close -fitting board, two close -fitting boards constitute a conical casing that wraps up funnel type culture dish. The device passes through the high shear force mixing of funnel type culture dish forced through narrow neck part, makes microalgae cell, nutrient substance distribute more evenly in culture solution, makes LED light energy direct, close -range, all -round irradiation to the whole conical surface of funnel type culture dish simultaneously, has improved illumination uniformity and light energy utilization efficiency significantly.

Description

Technical Field

[0001] This utility model belongs to the field of microalgae culture dish technology, specifically relating to a special microalgae culture dish. Background Technology

[0002] Microalgae, as an important biological resource, have shown enormous application potential in numerous fields such as bioenergy, food, feed, medicine, and environmental remediation. For example, some microalgae are rich in oils and can be used for biodiesel production; some microalgae contain abundant proteins, vitamins, and minerals, making them excellent food and feed additives; and some microalgae possess the ability to remove pollutants such as nitrogen and phosphorus from wastewater, making them suitable for wastewater treatment. Therefore, efficient and stable microalgae cultivation technology is crucial for fully realizing the value of microalgae.

[0003] In microalgae cultivation, the cultivation device plays a crucial role. Traditional microalgae cultivation devices suffer from several problems that urgently need to be addressed. Firstly, regarding the uniformity of the culture medium, common devices struggle to achieve a sufficiently even distribution of microalgae cells, nutrients, and dissolved CO2 (or other gases) within the culture medium. During cultivation, microalgae cells tend to settle, leading to cell accumulation at the bottom and a relatively smaller number of cells at the top, resulting in uneven cell distribution. Simultaneously, the inability to diffuse nutrients in a timely manner creates concentration gradients, preventing some areas of microalgae from receiving sufficient nutrients. This not only affects the growth rate of microalgae but may also lead to inconsistent growth states, reducing overall cultivation efficiency and quality.

[0004] Secondly, lighting conditions are a key factor affecting microalgal photosynthesis. Traditional cultivation devices perform poorly in terms of light uniformity and light energy utilization efficiency. Most cultivation devices use lighting methods that fail to directly, closely, and comprehensively illuminate all parts of the cultivation container, resulting in blind spots. Microalgal photosynthesis requires high light intensity and uniformity; insufficient or uneven light will limit the photosynthetic efficiency of microalgae, thus affecting their growth and metabolism. Furthermore, inadequate light energy utilization also leads to energy waste and increases cultivation costs.

[0005] To address this, we propose a specialized microalgae culture dish. This device uses a funnel-shaped culture dish to force mixing through a narrow neck, generating high shear force. This results in a more uniform distribution of microalgae cells, nutrients, and dissolved CO2 (or other gases) in the culture medium. Simultaneously, it allows LED lights to directly, closely, and comprehensively illuminate the entire conical surface of the funnel-shaped culture dish, significantly improving the uniformity of illumination and the efficiency of light energy utilization. Utility Model Content

[0006] The purpose of this invention is to provide a special microalgae culture dish. This device uses a funnel-shaped culture dish to force mixing through a narrow neck, generating high shear force, which makes the microalgae cells, nutrients, and dissolved CO2 (or other gases) more evenly distributed in the culture medium. At the same time, it allows LED lights to directly, closely, and omnidirectionally illuminate the entire conical surface of the funnel-shaped culture dish, significantly improving the uniformity of light illumination and the efficiency of light energy utilization.

[0007] The specific technical solution adopted by this utility model is as follows:

[0008] A specialized microalgae culture dish includes a base and a circular frame mounted on the base. A support plate is provided on one side of the circular frame, and a rotating assembly is provided on the support plate. A funnel-shaped culture dish rotating inside the circular frame is mounted on the rotating assembly. Two symmetrical through slots are formed at the top of the circular frame, and a magnetic fixing assembly is provided inside each through slot. An L-shaped connecting plate is provided on the magnetic fixing assembly. A bonding plate is provided on the side of the L-shaped connecting plate near the funnel-shaped culture dish. The two bonding plates form a conical shell that surrounds the funnel-shaped culture dish. An LED light is provided on one side of each bonding plate.

[0009] Furthermore, the rotating assembly includes a stepper motor mounted on the support plate, the output end of which is connected to the funnel-shaped culture dish.

[0010] Furthermore, the funnel-shaped culture dish is composed of a first conical shell, a second conical shell, and a cylindrical channel. Both the first conical shell and the second conical shell are provided with a first connecting tube and a second connecting tube. The first connecting tube is provided with a sealing cap, and the second connecting tube is provided with multiple layers of hydrophobic and breathable membranes.

[0011] Furthermore, the first conical shell, the second conical shell, and the inner wall of the cylindrical channel are provided with a hydrophobic and anti-adhesion coating.

[0012] Furthermore, threaded grooves are provided at the top and bottom of the cylindrical channel, and threaded rings matching the threaded grooves are provided between the first conical shell and the second conical shell.

[0013] Furthermore, the magnetic fixing assembly includes a first magnetic block disposed inside the through groove and a connecting rod disposed on one side of the L-shaped connecting plate. One end of the connecting rod passes through the through groove and is fitted with a second magnetic block, which attracts the first magnetic block.

[0014] Furthermore, the LED lights are distributed along the conical curved surface of the funnel-shaped culture dish.

[0015] The technical effects achieved by this utility model are as follows:

[0016] 1. First, the L-shaped connecting plate is opened to both sides by the magnetic fixing component, so that the bonding plate is no longer attached to the funnel-shaped culture dish. Then, the funnel-shaped culture dish is rotated 180° by the rotating component. When it is flipped, the algal solution flows from the upper cavity to the lower cavity, and is forced to mix by generating high shear force through the narrow neck. This makes the microalgal cells, nutrients, and dissolved CO2 (or other gases) more evenly distributed in the culture medium, preventing cell sedimentation and the formation of nutrient concentration gradients.

[0017] 2. Then, the two L-shaped connecting plates are moved toward the funnel-shaped culture dish again by the magnetic fixing component, so that the bonding plate is attached to the funnel-shaped culture dish. This allows the LED light to directly, closely, and from all directions illuminate the entire conical surface of the funnel-shaped culture dish, which significantly improves the uniformity of light illumination and the efficiency of light energy utilization, meeting the high requirements of microalgae photosynthesis for light intensity and uniformity. Attached Figure Description

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

[0019] Figure 2 This is an exploded view of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the funnel-shaped petri dish of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the bonding plate of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base; 2. Ring frame; 3. Support plate; 4. Funnel-shaped petri dish; 5. Through groove; 6. L-shaped connecting plate; 7. Adhesive plate; 8. LED light; 9. Stepper motor; 10. First conical shell; 11. Second conical shell; 12. Cylindrical channel; 13. Threaded groove; 14. Threaded ring; 15. First magnetic block; 16. Connecting rod; 17. Second magnetic block. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-4As shown, a special microalgae culture dish includes a base 1 and a circular frame 2 set on the base 1. A support plate 3 is set on one side of the circular frame 2, and a rotating component is set on the support plate 3. A funnel-shaped culture dish 4 is set on the rotating component and rotates inside the circular frame 2. Two symmetrical through slots 5 are opened on the top of the circular frame 2. A magnetic fixing component is set inside each through slot 5. An L-shaped connecting plate 6 is set on the magnetic fixing component. A bonding plate 7 is set on the side of the L-shaped connecting plate 6 near the funnel-shaped culture dish 4. The two bonding plates 7 form a conical shell that surrounds the funnel-shaped culture dish 4. An LED light 8 is set on one side of each bonding plate 7.

[0026] The rotating component includes a stepper motor 9 mounted on a support plate 3. The output end of the stepper motor 9 is connected to a funnel-shaped culture dish 4. The stepper motor 9 drives the funnel-shaped culture dish 4 to rotate 180°. When the dish is flipped, the algal liquid flows from the upper cavity to the lower cavity, forcibly passing through the narrow neck to generate high shear force mixing.

[0027] It should be noted that the stepper motor 9 can be timed by an external controller, which is existing technology and will not be elaborated on here.

[0028] Meanwhile, the funnel-shaped culture dish 4 is composed of a first conical shell 10, a second conical shell 11, and a cylindrical channel 12. The first conical shell 10 and the second conical shell 11 are each provided with a first connecting tube and a second connecting tube. The first connecting tube allows liquid to enter and exit. The first connecting tube is provided with a sealing cap (or a control valve). The second connecting tube is provided with multiple layers of hydrophobic and breathable membranes, which allow gas exchange but prevent liquid and microorganisms from passing through. The membrane layer spacing is 2 mm to form an airflow channel.

[0029] Furthermore, a hydrophobic anti-adhesion coating (such as a silica nano-coating) is provided on the inner walls of the first conical shell 10, the second conical shell 11, and the cylindrical channel 12 to prevent the cylindrical channel 12 from becoming clogged. This is prior art and will not be described in detail here.

[0030] The cylindrical channel 12 has threaded grooves 13 at both the top and bottom. The first conical shell 10 and the second conical shell 11 are provided with threaded rings 14 that match the threaded grooves 13. This arrangement facilitates the installation and disassembly of the first conical shell 10, the second conical shell 11 and the cylindrical channel 12, and makes subsequent cleaning easier.

[0031] The magnetic fixing assembly includes a first magnetic block 15 disposed inside the through groove 5 and a connecting rod 16 disposed on one side of the L-shaped connecting plate 6. One end of the connecting rod 16 passes through the through groove 5 and is fitted with a second magnetic block 17. The second magnetic block 17 attracts the first magnetic block 15. This arrangement enables the L-shaped connecting plate 6 to move and fix the connecting rod 16 inside the through groove 5.

[0032] Funnel-shaped culture dish 4 is made of a highly transparent biocompatible material (such as borosilicate glass / medical PC), which facilitates light transmission and observation of the internal structure.

[0033] LED lights 8 are distributed along the conical curved surface of the funnel-shaped culture dish 4, matching the shape of the funnel-shaped culture dish 4 to provide illumination without blind spots.

[0034] The output end of the stepper motor 9 is detachably connected to the cylindrical channel 12. This arrangement facilitates the installation and removal of the cylindrical channel 12. The connection method can be bolt or snap-fit ​​connection, which is existing technology and will not be elaborated on here.

[0035] The working principle of this invention is as follows: First, the magnetic fixing component causes the L-shaped connecting plate 6 to open the bonding plate 7 to both sides, so that the bonding plate 7 is no longer in contact with the funnel-shaped culture dish 4. Then, the rotating component drives the funnel-shaped culture dish 4 to rotate 180°. When flipped, the algal liquid flows from the upper cavity to the lower cavity, and is forced to mix through the narrow neck by generating high shear force. This makes the microalgal cells, nutrients, and dissolved CO2 (or other gases) more evenly distributed in the culture medium, preventing cell sedimentation and the formation of nutrient concentration gradients. Then, the magnetic fixing component moves the two L-shaped connecting plates 6 towards the funnel-shaped culture dish 4 again, so that the bonding plate 7 is in contact with the funnel-shaped culture dish 4. This allows the light from the LED lamp 8 to directly, closely, and omnidirectionally irradiate the entire conical surface of the funnel-shaped culture dish 4, significantly improving the uniformity of light and the efficiency of light energy utilization, and meeting the high requirements of microalgal photosynthesis for light intensity and uniformity.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A special microalgae culture dish, comprising a base (1) and a circular frame (2) disposed on the base (1), characterized in that: A support plate (3) is provided on one side of the ring frame (2). A rotating component is provided on the support plate (3). A funnel-shaped petri dish (4) that rotates inside the ring frame (2) is provided on the rotating component. Two symmetrical through slots (5) are opened on the top of the ring frame (2). A magnetic fixing component is provided inside each through slot (5). An L-shaped connecting plate (6) is provided on the magnetic fixing component. A bonding plate (7) is provided on the side of the L-shaped connecting plate (6) near the funnel-shaped petri dish (4). The two bonding plates (7) form a conical shell that wraps around the funnel-shaped petri dish (4). An LED light (8) is provided on one side of each bonding plate (7).

2. The special microalgae culture dish according to claim 1, characterized in that: The rotating assembly includes a stepper motor (9) mounted on the support plate (3), and the output end of the stepper motor (9) is connected to the funnel-shaped culture dish (4).

3. The special microalgae culture dish according to claim 1, characterized in that: The funnel-shaped culture dish (4) is composed of a first conical shell (10), a second conical shell (11) and a cylindrical channel (12). The first conical shell (10) and the second conical shell (11) are each provided with a first connecting tube and a second connecting tube. The first connecting tube is provided with a sealing cap, and the second connecting tube is provided with a multilayer hydrophobic and breathable membrane.

4. The special microalgae culture dish according to claim 3, characterized in that: The inner walls of the first conical shell (10), the second conical shell (11), and the cylindrical channel (12) are provided with a hydrophobic and anti-adhesion coating.

5. A special microalgae culture dish according to claim 3, characterized in that: The cylindrical channel (12) has threaded grooves (13) at both the top and bottom, and a threaded ring (14) matching the threaded groove (13) is provided between the first conical shell (10) and the second conical shell (11).

6. The special microalgae culture dish according to claim 1, characterized in that: The magnetic fixing assembly includes a first magnetic block (15) disposed inside the through groove (5) and a connecting rod (16) disposed on one side of the L-shaped connecting plate (6). One end of the connecting rod (16) passes through the through groove (5) and is fitted with a second magnetic block (17). The second magnetic block (17) attracts the first magnetic block (15).

7. A special microalgae culture dish according to claim 1, characterized in that: The LED lights (8) are distributed along the conical surface of the funnel-shaped culture dish (4).

Images