Microalgae culturing and harvesting device
By setting up algae harvesting components and driving components in the photobioreactor, the problem of algae attachment affecting photosynthesis and harvesting efficiency is solved, and the efficient harvesting and continuous management of microalgae environment is achieved.
Patent Information
- Application Number
- CN202421335599.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During the immobilization and culture of microalgae, the increase in the thickness of the algae layer causes the nutrient mass transfer and light penetration depth to be affected, reducing the yield of microalgae immobilized culture, and the adhesion of microalgae on the inner wall of the photobioreactor affects the photosynthesis efficiency and procurement Efficiency of harvest.
Design a microalgae culture harvesting device, including an algae harvesting component and a driving component. The harvesting component consists of a harvesting sponge, a fixing ring and a spring, driven with an external electromagnet, for collecting microscope on the inner wall of the photobioreactor algae prevents attachment and simplifies the harvesting process.
Effectively prevent algae from adhering to the inner wall of the photobioreactor, improve photosynthesis efficiency and harvesting efficiency, simple structure and convenient operation, reduce algae waste, and ensure the sustainability of algae growth.
Smart Images
Figure CN222182232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of microalgae cultivation, in particular to a microalgae cultivation and harvesting device. Background Art
[0002] Microalgae are a type of unicellular or multicellular phytoplankton that live in water. As a new type of renewable biomass energy with great potential, microalgae have the advantages of high photosynthetic efficiency, zero net carbon value, and easy cultivation. How to effectively utilize the biomass energy of microalgae is one of the current research hotspots at home and abroad. The efficient cultivation and enrichment of microalgae is a very important research topic.
[0003] During the immobilized culture of microalgae, the thickness of the algae layer will gradually increase with the growth of culture time. This phenomenon is called "bioretention". When the thickness of the algae layer is too large, it will affect the mass transfer of nutrients and the penetration depth of light, resulting in a decrease in the yield of immobilized microalgae culture. In order to avoid the above problems, the microalgae need to be harvested regularly during the immobilized culture of microalgae.
[0004] At present, the main methods for harvesting microalgae include centrifugation, filtration, flocculation, flotation, etc. The harvesting of microalgae is affected by the characteristics of the algae cells themselves (size, density, etc.). The concentration of microalgae culture is low, the cells are easily damaged and ruptured, and the cells are stably suspended in the culture medium, which brings great challenges to the harvesting efficiency.
[0005] During the cultivation process of microalgae, the algae are expanded into the photobioreactor through three stages and cultivated in the photobioreactor. However, in the photobioreactor, the microalgae are easily attached to the inner wall of the photobioreactor, which will affect the photosynthesis efficiency and collection effect of the microalgae, and then affect the operation efficiency of the entire cultivation system, resulting in inconvenience in the harvesting of microalgae. Utility Model Content
[0006] The purpose of the utility model is to provide a microalgae cultivation and harvesting device to solve the problems raised in the above background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A microalgae cultivation and harvesting device comprises a fixing frame, a photobioreactor for algae cultivation, a solar panel, a cultivation light source, an algae harvesting component for collecting algae on the inner wall of the photobioreactor, and a harvesting drive component for driving the algae harvesting component. The algae harvesting component comprises a harvesting sponge, a harvesting fixing ring and a spring. The outer circumferential wall structure of the harvesting sponge matches the inner circumferential wall structure of the photobioreactor. The harvesting fixing rings are symmetrically distributed and located inside the two ends of the harvesting sponge. The spring is embedded between the two harvesting fixing rings inside the harvesting sponge. One end of the spring is connected to the inner middle portion of one of the harvesting fixing rings, and the other end of the spring is connected to the inner middle portion of the other harvesting fixing ring.
[0009] As a preferred solution of the utility model, the harvesting drive assembly includes a first semicircular ring-shaped battery iron and a second semicircular ring-shaped electromagnet, and one end of the first semicircular ring-shaped battery iron and the second semicircular ring-shaped electromagnet form an openable ring-shaped battery iron through a connecting piece, and the ring-shaped battery iron composed of the first semicircular ring-shaped battery iron and the second semicircular ring-shaped electromagnet is sleeved on the outer wall of the photobioreactor.
[0010] As a preferred solution of the utility model, the photobioreactor is installed on the outer wall of the fixing frame through a fixing part, the culture light source is installed on the outer wall of the fixing frame on one side of the photobioreactor, and the culture light source is parallel to the photobioreactor structure.
[0011] As a preferred solution of the utility model, the solar panel is installed on the top of the fixing frame, the solar panel is connected to a battery via a wire, and the battery is electrically connected to the culture light source via a wire.
[0012] As a preferred solution of the utility model, the inner walls of the first semicircular ring-shaped battery iron and the second semicircular ring-shaped electromagnet are pasted with photobioreactor outer wall cleaning cotton, and the outer wall cleaning cotton is detachable.
[0013] As a preferred solution of the utility model, the outer wall of the end of the harvesting sponge is in contact with the inner wall of the photobioreactor.
[0014] As a preferred solution of the utility model, the diameter of the harvesting fixing ring is smaller than the diameter of the harvesting sponge and the inner wall of the photobioreactor, and the spring can be bent according to the structure of the inner wall of the photobioreactor.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] In response to the problems raised in the background technology, the present application arranges an algae harvesting component inside the photobioreactor to cooperate with an external harvesting drive component to facilitate the harvesting of microalgae located inside and on the inner wall of the photobioreactor. The harvesting is convenient. On the one hand, it prevents the algae from adhering to the inner wall of the photobioreactor when the algae are cultivated inside the photobioreactor, thereby affecting the photosynthesis efficiency of the microalgae and the operating efficiency of the entire breeding system. On the other hand, it is convenient to harvest the microalgae attached to the inside and on the inner wall of the photobioreactor. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is an overall side view of the utility model;
[0018] Figure 2 This is a side view of the connection between the culture light source and the fixing frame of the utility model;
[0019] Figure 3 This is a schematic diagram of the overall algae harvesting assembly of the utility model;
[0020] Figure 4 It is a schematic diagram of the overall harvesting drive assembly of the utility model.
[0021] In the figure: 1. fixing frame; 2. photobioreactor; 4. solar panel; 5. culture light source; 6. algae harvesting assembly; 61. harvesting sponge; 62. harvesting fixing ring; 63. spring; 7. harvesting drive assembly; 71. first semicircular ring-shaped battery iron; 72. second semicircular ring-shaped electromagnet; 73. connecting piece; 74. outer wall cleaning cotton. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention. Example
[0023] See also Figure 1-4 The utility model provides a technical solution: a microalgae cultivation and harvesting device, comprising a fixed frame 1, a photobioreactor 2 for algae cultivation, a solar panel 4, a cultivation light source 5, an algae harvesting component 6 for collecting algae on the inner wall of the photobioreactor 2, and a harvesting driving component 7 for driving the algae harvesting component 6, the photobioreactor 2 is installed on the outer wall of the fixed frame 1 through a fixing part, the cultivation light source 5 is installed on the outer wall of the fixed frame 1 on one side of the photobioreactor 2, and the cultivation light source 5 is parallel to the structure of the photobioreactor 2; the solar panel 4 is installed on the top of the fixed frame 1, the solar panel 4 is connected to a battery through a wire, and the battery is electrically connected to the cultivation light source 5 through a wire.
[0024] It should be noted that, in this embodiment, by providing a solar panel 4 to power the culture light source 5 of the photobioreactor 2 for culturing algae, the algae can perform photosynthesis inside the photobioreactor 2 by utilizing the solar panel 4;
[0025] Furthermore, the culture light source 5 is parallel to the structure of the photobioreactor 2 , and the culture light source 5 provides light for the photobioreactor 2 , ensuring that the culture light source 5 can cover the photobioreactor 2 .
[0026] See also Figure 1 , 3 4, the algae harvesting assembly 6 includes a harvesting sponge 61, a harvesting fixing ring 62 and a spring 63. The outer circumferential wall structure of the harvesting sponge 61 matches the inner circumferential wall structure of the photobioreactor 2. The harvesting fixing rings 62 are symmetrically distributed and located inside the two ends of the harvesting sponge 61. The spring 63 is embedded between the two harvesting fixing rings 62 inside the harvesting sponge 61. One end of the spring 63 is connected to the middle part of one of the harvesting fixing rings 62, and the other end of the spring 63 is connected to the middle part of the other harvesting fixing ring 62. The outer wall of the end of the harvesting sponge 61 abuts against the inner wall of the photobioreactor 2; the diameter of the harvesting fixing ring 62 is smaller than the diameter of the harvesting sponge 61 and the photobioreactor. The inner wall diameter of the reactor 2, and the spring 63 can be bent according to the inner wall structure of the photobioreactor 2; the harvesting drive component 7 includes a first semicircular ring battery iron 71 and a second semicircular ring electromagnet 72, one end of the first semicircular ring battery iron 71 and the second semicircular ring electromagnet 72 form an openable ring battery iron through a connecting piece 73, and the ring battery iron composed of the first semicircular ring battery iron 71 and the second semicircular ring electromagnet 72 is sleeved on the outer wall of the photobioreactor 2; the inner walls of the first semicircular ring battery iron 71 and the second semicircular ring electromagnet 72 are pasted with outer wall cleaning cotton 74 of the photobioreactor 2, and the outer wall cleaning cotton 74 is detachable.
[0027] It should be noted that in this embodiment, the present application facilitates the harvesting of microalgae located inside and on the inner wall of the photobioreactor 2 by arranging an algae harvesting component 6 in the photobioreactor 2 in cooperation with an external harvesting driving component 7. The harvesting is convenient. On the one hand, it prevents the algae from being attached to the inner wall of the photobioreactor 2 when the algae are cultivated inside the photobioreactor 2, thereby affecting the photosynthesis efficiency of the microalgae and the operation efficiency of the entire breeding system. On the other hand, it is convenient to harvest the microalgae attached to the inside and on the inner wall of the photobioreactor 2. The structure is simple and the operation is convenient.
[0028] Furthermore, by arranging the algae harvesting assembly 6 inside the photobioreactor 2, not only can the algae be effectively prevented from adhering to the inner wall, but the inner wall can also be conveniently cleaned regularly to reduce the waste of algae, and at the same time, the sustainability of algae growth can be ensured, which takes into account both economic benefits and environmental protection;
[0029] Furthermore, an intelligent monitoring system can be added inside the photobioreactor 2 to detect the growth status of the algae through sensors. When the algae reaches a certain growth density or growth rate, an alarm is issued to remind the algae cultivation personnel to harvest, thereby improving the efficiency of harvesting and reducing the waste of algae.
[0030] Furthermore, the harvesting fixing ring 62 and the spring 63 provided inside the harvesting sponge 61 ensure that the harvesting sponge 61 can be used for harvesting. The spring 63 can drive the harvesting sponge 61 to bend and move inside the photobioreactor 2 according to the structure of the photobioreactor 2, thereby preventing the harvesting sponge 61 from being blocked inside the photobioreactor 2.
[0031] Furthermore, when it is necessary to harvest the algae inside the photobioreactor 2, the algae harvesting component 6 is placed in the top entrance of the photobioreactor 2, and the harvesting drive component 7 is placed on the outer wall of the photobioreactor 2 outside the algae harvesting component 6 to ensure that the outer wall cleaning cotton 74 is in contact with the outer wall of the photobioreactor 2. The first semicircular battery iron 71 and the second semicircular electromagnet 72 are energized to adsorb the harvesting fixing ring 62 at the end of the harvesting sponge 61, and the first semicircular battery iron 71 and the second semicircular electromagnet 72 are moved to drive the harvesting sponge 61 to move on the inner wall of the photobioreactor 2 to harvest the microalgae inside and on the inner wall of the photobioreactor 2.
[0032] The utility model workflow:
[0033] During use, when it is necessary to harvest the algae inside the photobioreactor 2, the algae harvesting assembly 6 is placed in the top entrance of the photobioreactor 2, and the harvesting drive assembly 7 is placed on the outer wall of the photobioreactor 2 outside the algae harvesting assembly 6, ensuring that the outer wall cleaning cotton 74 is in contact with the outer wall of the photobioreactor 2, the first semicircular ring battery iron 71 and the second semicircular ring electromagnet 72 are energized to adsorb the harvesting fixing ring 62 at the end of the harvesting sponge 61, and the first semicircular ring battery iron 71 and the second semicircular ring electromagnet 72 are moved to drive the harvesting sponge 61 to move on the inner wall of the photobioreactor 2, The microalgae located inside and on the inner wall of the photobioreactor 2 are harvested; the present application facilitates the harvesting of the microalgae located inside and on the inner wall of the photobioreactor 2 by arranging an algae harvesting component 6 inside the photobioreactor 2 in cooperation with an external harvesting driving component 7. The harvesting is convenient. On the one hand, it prevents the algae from adhering to the inner wall of the photobioreactor 2 when the algae are cultivated inside the photobioreactor 2, thereby affecting the photosynthesis efficiency of the microalgae and the operation efficiency of the entire breeding system. On the other hand, it is convenient to harvest the microalgae attached to the inside and on the inner wall of the photobioreactor 2. The structure is simple and the operation is convenient.
[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A microalgae cultivation and harvesting device, comprising a fixing frame (1), a photobioreactor (2) for algae cultivation, a solar panel (4), a cultivation light source (5), an algae harvesting component (6) for collecting algae on the inner wall of the photobioreactor (2), and a harvesting drive component (7) for driving the algae harvesting component (6), characterized in that: The algae harvesting component (6) comprises a harvesting sponge (61), a harvesting fixing ring (62) and a spring (63); the outer circumferential wall structure of the harvesting sponge (61) matches the inner circumferential wall structure of the photobioreactor (2); the harvesting fixing rings (62) are symmetrically distributed and located inside the two ends of the harvesting sponge (61); the spring (63) is embedded between the two harvesting fixing rings (62) inside the harvesting sponge (61); one end of the spring (63) is connected to the middle part of one of the harvesting fixing rings (62); and the other end of the spring (63) is connected to the middle part of the other harvesting fixing ring (62).
2. A microalgae cultivation and harvesting device according to claim 1, characterized in that: The harvesting drive assembly (7) comprises a first semicircular ring-shaped battery iron (71) and a second semicircular ring-shaped electromagnet (72); one end of the first semicircular ring-shaped battery iron (71) and the second semicircular ring-shaped electromagnet (72) are connected via a connecting piece (73) to form an openable ring-shaped battery iron; the ring-shaped battery iron formed by the first semicircular ring-shaped battery iron (71) and the second semicircular ring-shaped electromagnet (72) is sleeved on the outer wall of the photobioreactor (2).
3. A microalgae cultivation and harvesting device according to claim 1, characterized in that: The photobioreactor (2) is mounted on the outer wall of the fixing frame (1) via a fixing member, the culture light source (5) is mounted on the outer wall of the fixing frame (1) on one side of the photobioreactor (2), and the culture light source (5) is parallel to the structure of the photobioreactor (2).
4. The microalgae cultivation and harvesting device according to claim 1, characterized in that: The solar panel (4) is installed on the top of the fixing frame (1), the solar panel (4) is connected to a battery via a wire, and the battery is electrically connected to the culture light source (5) via a wire.
5. The microalgae cultivation and harvesting device according to claim 2, characterized in that: The inner walls of the first semicircular ring-shaped battery iron (71) and the second semicircular ring-shaped electromagnet (72) are bonded with outer wall cleaning cotton (74) of the photobioreactor (2), and the outer wall cleaning cotton (74) is detachable.
6. The microalgae cultivation and harvesting device according to claim 1, characterized in that: The outer wall of the end of the harvesting sponge (61) abuts against the inner wall of the photobioreactor (2).
7. The microalgae cultivation and harvesting device according to claim 1, characterized in that: The diameter of the harvesting fixing ring (62) is smaller than the diameter of the harvesting sponge (61) and the inner wall of the photobioreactor (2), and the spring (63) can be bent according to the structure of the inner wall of the photobioreactor (2).