Gel mold for high-density culture of microalgae

By designing a gel mold with a perforated plate, a main body, and a bottom plate structure, the economic and efficiency problems of existing molds were solved, and high-density microalgae cultivation with high pore density, low cost, and high nutrient diffusion efficiency was achieved.

CN224494165UActive Publication Date: 2026-07-14TONGWEI AGRI DEV CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGWEI AGRI DEV CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing metal molds are costly, physically limited, and chemically incompatible, while polymer molds have significant process limitations, structural failures, and the inability to achieve nutrient gradient control, resulting in low economic efficiency and effectiveness of microalgae culture molds.

Method used

A gel mold for high-density microalgae culture was designed, employing a well plate, main body, and base plate structure. The support array is matched with the through-hole array, and the reinforcing column is matched with the reinforcing hole. PETG material is used, and the reinforcing column is made of stainless steel. High-density culture is achieved through assembly and demolding.

Benefits of technology

It increases pore density, reduces demolding force, decreases costs, improves nutrient diffusion efficiency, and achieves efficient microalgae cultivation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of gel mould of microalgae high-density culture, belong to microalgae aquaculture technical field, including orifice plate, main body and bottom plate, main body upper end is equipped with placing groove, column array and multiple reinforcing holes are equipped in placing groove, the height of placing groove is greater than the height of orifice plate;Orifice plate is equipped with through-hole array matched with column array, and the bottom plate is equipped with multiple reinforcing columns matched with reinforcing hole. When using, through-hole array is sleeved on column array, then orifice plate is placed in placing groove, then reinforcing column is sleeved on reinforcing hole, then main body is placed above bottom plate to complete the assembly of gel mould, finally gel is poured into placing groove, until filling in placing groove, wait for gel solidification and press down main body, reinforcing column ejects microalgae high-density culture gel and orifice plate, and completes demoulding.
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Description

Technical Field

[0001] This utility model belongs to the field of microalgae cultivation technology, specifically relating to a gel mold for high-density microalgae cultivation. Background Technology

[0002] The microalgae carrier with a dense microchannel structure is a highly efficient bioreactor design for microalgae cultivation. Its core is to optimize light energy utilization, gas exchange, and nutrient transfer through a channel network (dense microchannel structure), thereby significantly improving the growth efficiency and biomass yield of microalgae.

[0003] Dense microchannel structures require molds when prepared using gels. Using metal molds presents several drawbacks: economic constraints (CNC machining of stainless steel molds (200×200×10mm) costs > ¥4000 / set); physical limitations (minimum column diameter ≥ 5mm results in pore density < 100 pores / dm² (actual space utilization ≤ 41%)); and chemical incompatibility (Ca²⁺ crosslinking induces metal ion-gel adhesion, leading to a demolding breakage rate > 90%). Using polymer molds also presents drawbacks: process limitations (the column array center-to-center distance is difficult to exceed the 6mm physical limit); structural failure (plastic deformation rate > 25% when the height-to-diameter ratio > 3.75 (e.g., Φ4mm×15mm column); and functional deficiencies (homogeneous structures cannot achieve nutrient gradient regulation). Utility Model Content

[0004] The purpose of this invention is to solve the problems of the prior art and provide a gel mold for high-density microalgae culture. In use, the through-hole array is fitted onto the support array, then the well plate is placed in the placement groove, then the reinforcing column is fitted onto the reinforcing hole, then the main body is placed on the base plate to complete the assembly of the gel mold, and finally the gel is poured into the placement groove until the placement groove is full. After the gel solidifies, the main body is pressed down, and the reinforcing column pushes out the gel and well plate of high-density microalgae culture, thus completing the demolding.

[0005] This utility model is achieved through the following technical solution:

[0006] A gel mold for high-density microalgae culture includes a well plate, a main body, and a base plate. The upper end of the main body is provided with a placement groove, and the placement groove is provided with a support array and multiple reinforcing holes. The height of the placement groove is greater than the height of the well plate. The well plate is provided with a through-hole array that matches the support array, and the base plate is provided with multiple reinforcing columns that match the reinforcing holes.

[0007] Preferably, the base plate is provided with a boss for placing the main body.

[0008] Preferably, the reinforcing post is disposed on the boss.

[0009] Preferably, the main body is provided with handles around its perimeter.

[0010] Preferably, the perforated plate, the main body, and the base plate are all made of PETG material.

[0011] Preferably, the support array is a 24*24 support array; the through-hole array is a 24*24 through-hole array.

[0012] Preferably, the column diameter of the support array is 3.9-4.1 mm; the aperture of the through-hole array is 3.9-4.1 mm.

[0013] Preferably, the height of the placement groove is 15mm; the height of the perforated plate is 5mm.

[0014] Preferably, the reinforcing column is made of stainless steel.

[0015] Preferably, the diameter of the reinforcing column is 1.9-2.1 mm and the height is 24.9-25.1 mm.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] I. The present invention provides a gel mold for high-density microalgae culture. In use, the through-hole array is fitted onto the support array, then the well plate is placed in the placement groove, then the reinforcing column is fitted onto the reinforcing hole, then the main body is placed on the base plate to complete the assembly of the gel mold, and finally the gel is poured into the placement groove until the placement groove is full. After the gel solidifies, the main body is pressed down, and the reinforcing column pushes out the gel and well plate of high-density microalgae culture, thus completing the demolding.

[0018] II. The gel mold for high-density microalgae culture provided by this utility model has a handle that makes it more convenient to press down the main body.

[0019] III. The present invention provides a gel mold for high-density microalgae culture, which has higher pore density, lower demolding force, lower paper cost and higher nutrient diffusion efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the perforated plate in this utility model;

[0022] Figure 3 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the base plate in this utility model;

[0024] The components are: 1. perforated plate; 2. main body; 3. base plate; 4. placement groove; 5. support array; 7. through hole array; 9. boss; 10. handle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0026] Example 1

[0027] like Figures 1-4 As shown, this embodiment provides a gel mold for high-density microalgae culture, including a well plate 1, a main body 2, and a base plate 3. The upper end of the main body 2 is provided with a placement groove 4, and the placement groove 4 is provided with a support array 5 and a plurality of reinforcing holes. The height of the placement groove 4 is greater than the height of the well plate 1. The well plate 1 is provided with a through-hole array 7 that matches the support array 5, and the base plate 3 is provided with a plurality of reinforcing columns that match the reinforcing holes.

[0028] Example 2

[0029] like Figures 1-4 As shown, this embodiment provides a gel mold for high-density microalgae culture, including a well plate 1, a main body 2, and a base plate 3. The upper end of the main body 2 is provided with a placement groove 4, and the placement groove 4 is provided with a support array 5 and a plurality of reinforcing holes. The height of the placement groove 4 is greater than the height of the well plate 1. The well plate 1 is provided with a through-hole array 7 that matches the support array 5, and the base plate 3 is provided with a plurality of reinforcing columns that match the reinforcing holes.

[0030] The base plate 3 is provided with a boss 9 for placing the main body 2.

[0031] The reinforcing column is disposed on the boss 9.

[0032] The main body 2 is provided with handles 10 around its perimeter.

[0033] The perforated plate 1, the main body 2, and the bottom plate 3 are all made of PETG material.

[0034] The support array 5 is a 24*24 support array 5; the through-hole array 7 is a 24*24 through-hole array 7.

[0035] The column diameter of the support array 5 is 3.9-4.1 mm; the aperture of the through-hole array 7 is 3.9-4.1 mm.

[0036] The height of the placement groove 4 is 15mm; the height of the perforated plate 1 is 5mm.

[0037] The reinforcing column is made of stainless steel.

[0038] The diameter of the reinforcing column is 1.9-2.1 mm and the height is 24.9-25.1 mm.

[0039] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0040] I. The present invention provides a gel mold for high-density microalgae culture. In use, the through-hole array 7 is fitted onto the support array 5, then the well plate 1 is placed in the placement groove 4, then the reinforcing column is fitted onto the reinforcing hole, then the main body 2 is placed on the base plate 3 to complete the assembly of the gel mold, and finally the gel is poured into the placement groove 4 until the placement groove 4 is full. After the gel solidifies, the main body 2 is pressed down, and the reinforcing column pushes out the gel and well plate 1 of the high-density microalgae culture, thus completing the demolding.

[0041] II. The gel mold for high-density microalgae culture provided by this utility model has a handle 10 that makes it more convenient to press down the main body 2.

[0042] III. The present invention provides a gel mold for high-density microalgae culture, which has higher pore density, lower demolding force, lower paper cost and higher nutrient diffusion efficiency.

[0043] Example 3

[0044] like Figures 1-4 As shown, this embodiment provides a gel mold for high-density microalgae culture, including a well plate 1, a main body 2, and a base plate 3. The upper end of the main body 2 is provided with a placement groove 4, and the placement groove 4 is provided with a support array 5 and a plurality of reinforcing holes. The height of the placement groove 4 is greater than the height of the well plate 1. The well plate 1 is provided with a through-hole array 7 that matches the support array 5, and the base plate 3 is provided with a plurality of reinforcing columns that match the reinforcing holes.

[0045] The base plate 3 is provided with a boss 9 for placing the main body 2.

[0046] The reinforcing column is disposed on the boss 9.

[0047] The main body 2 is provided with handles 10 around its perimeter.

[0048] The perforated plate 1, the main body 2, and the bottom plate 3 are all made of PETG material.

[0049] The support array 5 is a 24*24 support array 5; the through-hole array 7 is a 24*24 through-hole array 7.

[0050] The column diameter of the support array 5 is 4mm; the aperture of the through-hole array 7 is 4mm.

[0051] The height of the placement groove 4 is 15mm; the height of the perforated plate 1 is 5mm.

[0052] The reinforcing column is made of stainless steel.

[0053] The reinforcing columns have a diameter of 2mm and a height of 25mm. They form a 5x5 array and penetrate the base plate 3 and the perforated plate 1 to form distributed stress transmission nodes; the nodes are scientifically spaced with a spacing of 48mm.

[0054] Among them, the dimensions of the perforated plate 1 are 200*200*5mm, the dimensions of the main body 2 are 210*210*20mm, the dimensions of the bottom plate 3 are 230*230*5mm, and the dimensions of the boss 9 are 205*204*10mm.

[0055] Compared with the prior art, this utility model has the following advantages:

[0056]

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A gel mold for high-density microalgae culture, characterized in that: It includes a perforated plate (1), a main body (2) and a base plate (3). The upper end of the main body (2) is provided with a placement groove (4). The placement groove (4) is provided with a support array (5) and multiple reinforcing holes. The height of the placement groove (4) is greater than the height of the perforated plate (1). The perforated plate (1) is provided with a through hole array (7) that matches the support array (5). The base plate (3) is provided with multiple reinforcing columns that match the reinforcing holes.

2. The gel mold for high-density microalgae culture according to claim 1, characterized in that: The base plate (3) is provided with a boss (9) for placing the main body (2).

3. The gel mold for high-density microalgae culture according to claim 2, characterized in that: The reinforcing column is disposed on the boss (9).

4. The gel mold for high-density microalgae culture according to claim 3, characterized in that: The main body (2) is provided with handles (10) around its perimeter.

5. The gel mold for high-density microalgae culture according to claim 4, characterized in that: The perforated plate (1), the main body (2) and the bottom plate (3) are all made of PETG material.

6. The gel mold for high-density microalgae culture according to claim 5, characterized in that: The support array (5) is a 24*24 support array (5); the through-hole array (7) is a 24*24 through-hole array (7).

7. The gel mold for high-density microalgae culture according to claim 6, characterized in that: The column diameter of the support array (5) is 3.9-4.1 mm; the aperture of the through-hole array (7) is 3.9-4.1 mm.

8. The gel mold for high-density microalgae culture according to claim 7, characterized in that: The height of the placement groove (4) is 15mm; the height of the perforated plate (1) is 5mm.

9. A gel mold for high-density microalgae culture according to claim 8, characterized in that: The reinforcing column is made of stainless steel.

10. A gel mold for high-density microalgae culture according to claim 9, characterized in that: The diameter of the reinforcing column is 1.9-2.1 mm and the height is 24.9-25.1 mm.