Filtering and sterilizing device for microalgae culture

Abstract

The utility model relates to the technical field of microalgae culture, in particular to a microalgae culture filtration sterilization device which comprises an algae culture photobioreactor, a microalgae filtration sterilization cylinder and a controller, the algae culture photobioreactor is located on one side of the microalgae filtration sterilization cylinder, a microalgae suspension stirring assembly is arranged in the algae culture photobioreactor, and the microalgae suspension stirring assembly is located on the other side of the microalgae filtration sterilization cylinder. A filtering and sterilizing assembly for culturing and filtering microalgae is arranged in the microalgae filtering and sterilizing barrel and comprises a microporous filter membrane, a sterilizing membrane and a filtering and cleaning nozzle; the microfiltration membrane and the degerming membrane are arranged in the microalgae filtration degerming cylinder to filter and degerm liquid in the algae culture photobioreactor, the microfiltration membrane can effectively block the size of microalgae particles, only allows microalgae to pass through, and prevents solid impurities from entering, so that the purity of algae culture is ensured, and the quality of the algae culture photobioreactor is improved. And the use effects of the microporous filter membrane and the degerming membrane can be maintained only by regularly replacing the filter membrane, so that the filtering and degerming cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of microalgae cultivation, in particular to a microalgae cultivation filtering and sterilization 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 hot topics of research at home and abroad.

[0003] During the microalgae cultivation process, microalgae growth requires a relatively sterile environment. If there are too many microorganisms in the environment, it will interfere with and inhibit the growth of microalgae, leading to the formation of miscellaneous bacteria, thereby affecting the quality and yield of microalgae and reducing the overall economic benefits of microalgae production. Utility Model Content

[0004] The utility model aims to provide a microalgae culture filtering and sterilization device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A microalgae cultivation, filtration and sterilization device comprises an algae cultivation photobioreactor, a microalgae filtration and sterilization cylinder and a controller, wherein the algae cultivation photobioreactor is located at one side of the microalgae filtration and sterilization cylinder, a microalgae suspension and stirring component is arranged inside the algae cultivation photobioreactor, a filtration and sterilization component for cultivating and filtering microalgae is arranged inside the microalgae filtration and sterilization cylinder, the filtration and sterilization component comprises a microporous filter membrane, a sterilization membrane and a filtration and cleaning nozzle, a first support frame is arranged outside the microporous filter membrane, the external structure of the first support frame matches the internal structure of the microalgae filtration and sterilization cylinder, a second support frame is arranged outside the sterilization membrane, the sterilization membrane is located at the bottom of the microporous filter membrane, and filtration and sterilization disassembly handles are evenly distributed above the microporous filter membrane at the top of the first support frame, the filtration and cleaning nozzles are distributed at the top of the microporous filter membrane at the bottom of the filtration and sterilization disassembly handle, and fixing grooves are evenly arranged at the bottom of the first support frame near the outer circumferential wall.

[0007] As a preferred solution of the utility model, connecting grooves are distributed on the inner circumferential wall of the microalgae filtration and sterilization cylinder, and a fixing part connected to the fixing groove is arranged inside the connecting groove. The fixing part includes a fixed plug rod and a spring. The spring sleeve is located outside the fixed plug rod, one end of the spring is fixed to the inner wall of the connecting groove, and the inner circumferential wall of the other end of the spring is fixed to the outer wall of the middle part of the fixed plug rod.

[0008] As a preferred solution of the utility model, the sterilization membrane is connected to the inner wall of the microalgae filtration sterilization cylinder at the bottom of the microporous filter membrane through a second supporting frame.

[0009] As a preferred solution of the utility model, the microalgae suspension stirring assembly includes a stirring shaft and stirring blades distributed on the outer circumferential wall of the stirring shaft. One end of the stirring shaft penetrates the shell on one side below the algae cultivation photobioreactor and extends to the outside to be connected to the suspension stirring motor.

[0010] As a preferred solution of the present utility model, the suspension stirring motor is electrically connected to the controller via a wire.

[0011] As a preferred solution of the utility model, the filter cleaning nozzle is connected to an external filter water supply device through a pipeline, and the filter water supply device is electrically connected to the controller through a wire.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In view of the problems raised in the background technology, the present application filters and sterilizes the liquid inside the algae culture photobioreactor by setting a microporous filter membrane and a sterilizing membrane inside the microalgae filtering and sterilizing cylinder. The microporous filter membrane can effectively block the size of the microalgae particles, allowing only the microalgae to pass through, while preventing solid impurities from entering, preventing the algae particles from absorbing microorganisms such as bacteria or fungi in the external environment, and also preventing these microorganisms from entering the culture liquid, thereby ensuring the purity of the algae culture. At the same time, due to the effective filtering effect of the microporous filter membrane and the sterilizing membrane, it is only necessary to regularly replace the filter membrane to maintain the use effect of the microporous filter membrane and the sterilizing membrane, which also greatly reduces the sterilization cost;

[0014] By setting a filter cleaning nozzle on the top of the microporous filter membrane, the microporous filter membrane is cleaned regularly to prevent clogging and maintain its filtering effect;

[0015] The microporous filter membrane is fixed to the inner wall of the microalgae filtration and sterilization cylinder through the first support frame and the fixing piece. The top of the first support frame is provided with a filter sterilization disassembly handle frame to facilitate the disassembly and installation of the first support frame to replace the microporous filter membrane;

[0016] The microalgae in the algae culture photobioreactor before filtration are stirred to mix the microalgae suspension to ensure that all the microalgae are evenly distributed on the microporous filter membrane to ensure the filtration and sterilization effect;

[0017] Each device is controlled by a controller, and the components work together to complete the function of filtering and sterilizing the microalgae to ensure the purity and safety of the microalgae. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a three-dimensional diagram of the structure of the overall algae cultivation photobioreactor of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the integral microalgae filtration and sterilization cartridge of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the microporous filter membrane and the first supporting frame of the utility model;

[0021] Figure 4 This is a side view of the microalgae suspension stirring assembly of the utility model;

[0022] Figure 5 For this utility model Figure 3 Enlarged view of area A in the middle.

[0023] In the figure: 1. algae culture photobioreactor; 11. microalgae suspension stirring assembly; 111. stirring shaft; 112. stirring blade; 2. microalgae filtration and sterilization cylinder; 21. microporous filter membrane; 211. first support frame; 212. filtration and sterilization disassembly buckle bracket; 213. fixing groove; 22. sterilization membrane; 221. second support frame; 23. filter cleaning nozzle; 24. connecting groove; 25. fixing piece; 251. fixing rod; 252. spring. DETAILED DESCRIPTION

[0024] 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

[0025] Each device in this application document adopts a conventional model in the prior art, and the control method is to control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which belongs to the common knowledge in this field, so this application document will not explain it in detail.

[0026] See also Figure 1-5 The utility model provides a technical solution: a microalgae culture filtration and sterilization device, comprising an algae culture photobioreactor 1, a microalgae filtration and sterilization cylinder 2 and a controller. The algae culture photobioreactor 1 is located on one side of the microalgae filtration and sterilization cylinder 2. A microalgae suspension stirring component 11 is arranged inside the algae culture photobioreactor 1. The microalgae suspension stirring component 11 comprises a stirring shaft 111 and stirring blades 112 distributed on the outer circumferential wall of the stirring shaft 111. One end of the stirring shaft 111 penetrates a housing on one side below the algae culture photobioreactor 1 and extends to the outside thereof to be connected to a suspension stirring motor; the suspension stirring motor is electrically connected to the controller through a wire.

[0027] It should be noted that, in this embodiment, the microalgae suspension stirring component 11 is provided to stir the microalgae inside the algae culture photobioreactor 1 before filtration, so as to mix the microalgae suspension, so as to ensure that all the microalgae can be evenly distributed on the microporous filter membrane 21, thereby ensuring the filtration and sterilization effect;

[0028] Furthermore, the microalgae suspension stirring assembly 11 is located at the bottom of the algae culture photobioreactor 1 to prevent the microalgae from settling and ensure that the evenly mixed microalgae suspension is evenly transported to the inside of the microalgae filtration and sterilization cylinder 2 for filtration.

[0029] See also Figure 2 , 3 5. A filtration and sterilization component for cultivating and filtering microalgae is arranged inside the microalgae filtration and sterilization cylinder 2. The filtration and sterilization component includes a microporous filter membrane 21, a sterilization membrane 22 and a filtration and cleaning nozzle 23. A first support frame 211 is arranged outside the microporous filter membrane 21. The external structure of the first support frame 211 matches the internal structure of the microalgae filtration and sterilization cylinder 2. A second support frame 221 is arranged outside the sterilization membrane 22. The sterilization membrane 22 is located at the bottom of the microporous filter membrane 21. Filter sterilization disassembly handles 212 are evenly distributed above the microporous filter membrane 21 at the top of the first support frame 211. The filtration and cleaning nozzles 23 are distributed at the top of the microporous filter membrane 21 at the bottom of the filtration and sterilization disassembly handle 212. The bottom of the first support frame 211 is close to the bottom of the microporous filter membrane 21. Fixed grooves 213 are evenly arranged near the outer circumferential wall; the filter cleaning nozzle 23 is connected to the external filter water supply equipment through a pipeline, and the filter water supply equipment is electrically connected to the controller through a wire; the sterilization membrane 22 is connected to the inner wall of the microalgae filtration sterilization cylinder 2 at the bottom of the microporous filter membrane 21 through the second support frame 221; connecting grooves 24 are distributed on the inner circumferential wall of the microalgae filtration sterilization cylinder 2, and a fixing part 25 connected to the fixed groove 213 is arranged inside the connecting groove 24, and the fixing part 25 includes a fixed plug rod 251 and a spring 252, and the spring 252 is sleeved on the outside of the fixed plug rod 251, one end of the spring 252 is fixed to the inner wall of the connecting groove 24, and the inner circumferential wall of the other end of the spring 252 is fixed to the outer wall of the middle part of the fixed plug rod 251.

[0030] It should be noted that, in the present embodiment, the liquid inside the algae culture photobioreactor 1 is filtered and sterilized by setting a microporous filter membrane 21 and a sterilizing membrane 22 inside the microalgae filtering and sterilizing cylinder 2. The microporous filter membrane 21 can effectively block the size of the microalgae particles, allowing only the microalgae to pass through, while preventing solid impurities from entering, preventing the algae particles from absorbing microorganisms such as bacteria or fungi in the external environment, and also preventing these microorganisms from entering the culture liquid, thereby ensuring the purity of the algae culture. At the same time, due to the effective filtering effect of the microporous filter membrane 21 and the sterilizing membrane 22, it is only necessary to regularly replace the filter membrane to maintain the use effect of the microporous filter membrane 21 and the sterilizing membrane 22, which also greatly reduces the sterilization cost;

[0031] Each device is controlled by a controller, and the components work together to complete the function of filtering and sterilizing the microalgae to ensure the purity and safety of the microalgae;

[0032] Furthermore, by providing a filter cleaning nozzle 23 on the top of the microporous filter membrane 21, the microporous filter membrane 21 is cleaned regularly to prevent clogging and maintain its filtering effect;

[0033] Furthermore, the microporous filter membrane 21 is fixed to the inner wall of the microalgae filtration and sterilization cylinder 2 through the first support frame 211 and the fixing member 25. A filter sterilization disassembly handle 212 is provided on the top of the first support frame 211 to facilitate the disassembly and installation of the first support frame 211 to replace the microporous filter membrane 21.

[0034] Furthermore, when the microporous filter membrane 21 needs to be replaced and installed, hold the filter sterilization disassembly buckle frame 212 with one hand to ensure that the fixed groove 213 at the bottom of the first support frame 211 corresponds to the position of the connecting groove 24 on the inner wall of the microalgae filtration sterilization cylinder 2, move downward and press the first support frame 211, the landslide structure of the fixed groove 213 squeezes the fixed rod 251, and the fixed rod 251 squeezes the spring 252 and moves toward the side of the connecting groove 24. At this time, the reverse force of the spring 252 squeezes the fixed rod 251, and the end of the fixed rod 251 slides into the bottom of the fixed groove 213 through the landslide structure of the fixed groove 213, and the fixed rod 251 abuts against the fixed groove 213 to complete the installation; when disassembling, pull upward, and the fixed rod 251 slides out of the fixed groove 213, which is convenient for disassembly and installation of the first support frame 211 to replace the microporous filter membrane 21.

[0035] The utility model workflow:

[0036] When in use, the microporous filter membrane 21 is placed in the second support frame 221 inside the microalgae filtration and sterilization cylinder 2, and the filter sterilization disassembly buckle frame 212 is held with one hand to ensure that the fixed groove 213 at the bottom of the first support frame 211 corresponds to the position of the connecting groove 24 on the inner wall of the microalgae filtration and sterilization cylinder 2, and the first support frame 211 is moved downward to press the first support frame 211, and the landslide structure of the fixed groove 213 squeezes the fixed plug rod 251, and the fixed plug rod 251 squeezes the spring 252 to move to one side of the connecting groove 24. At this time, the reverse force of the spring 252 squeezes the fixed plug rod 251, and the end of the fixed plug rod 251 slides into the bottom of the fixed groove 213 through the landslide structure of the fixed groove 213. The fixed plug rod 251 is abutted against the fixed groove 213 and the installation is completed. Start the controller, and the microalgae suspension stirring component 1 1 stirs the microalgae inside the algae culture photobioreactor 1 before filtration, and the conveying equipment conveys the microalgae suspension evenly mixed in the algae culture photobioreactor 1 to the inside of the microalgae filtration and sterilization cylinder 2, and filters and sterilizes the liquid inside the algae culture photobioreactor 1 through the microporous filter membrane 21 and the sterilization membrane 22. The microporous filter membrane 21 can effectively block the size of the microalgae particles, allowing only the microalgae to pass through, while preventing solid impurities from entering, preventing the algae particles from absorbing microorganisms such as bacteria or fungi in the external environment, and also preventing these microorganisms from entering the culture solution, thereby ensuring the purity of the algae culture. The filter cleaning nozzle 23 regularly cleans the microporous filter membrane 21 to prevent blockage so as to maintain its filtration effect. After the filtration and sterilization is completed, the controller actively shuts down the device.

[0037] Although 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 culture filtration and sterilization device, comprising an algae culture photobioreactor (1), a microalgae filtration and sterilization cylinder (2) and a controller, characterized in that: The algae cultivation photobioreactor (1) is located on one side of the microalgae filtration and sterilization cylinder (2); a microalgae suspension stirring component (11) is arranged inside the algae cultivation photobioreactor (1); a filtration and sterilization component for culturing and filtering the microalgae is arranged inside the microalgae filtration and sterilization cylinder (2); the filtration and sterilization component comprises a microporous filter membrane (21), a sterilization membrane (22) and a filtration and cleaning nozzle (23); a first support frame (211) is arranged outside the microporous filter membrane (21); the external structure of the first support frame (211) is similar to that of the microalgae filtration and sterilization cylinder. (2) The internal structure matches, a second support frame (221) is arranged outside the sterilization membrane (22), the sterilization membrane (22) is located at the bottom of the microporous filter membrane (21), and a filter sterilization disassembly handle frame (212) is evenly distributed above the microporous filter membrane (21) at the top of the first support frame (211), the filter cleaning nozzle (23) is distributed at the top of the microporous filter membrane (21) at the bottom of the filter sterilization disassembly handle frame (212), and a fixing groove (213) is evenly arranged near the outer circumferential wall at the bottom of the first support frame (211).

2. A microalgae culture filtration and sterilization device according to claim 1, characterized in that: The inner circumferential wall of the microalgae filtering and sterilizing cylinder (2) is provided with connecting grooves (24), and a fixing member (25) connected to the fixing groove (213) is arranged inside the connecting groove (24). The fixing member (25) includes a fixing rod (251) and a spring (252). The spring (252) is sleeved on the outside of the fixing rod (251), and one end of the spring (252) is fixed to the inner wall of the connecting groove (24), and the inner circumferential wall of the other end of the spring (252) is fixed to the outer wall of the middle part of the fixing rod (251).

3. A microalgae culture filtration and sterilization device according to claim 1, characterized in that: The sterilization membrane (22) is connected to the inner wall of the microalgae filtration sterilization cylinder (2) at the bottom of the microporous filter membrane (21) via a second support frame (221).

4. The microalgae culture filtration and sterilization device according to claim 1, characterized in that: The microalgae suspension stirring assembly (11) comprises a stirring shaft (111) and stirring blades (112) distributed on the outer circumferential wall of the stirring shaft (111); one end of the stirring shaft (111) penetrates a housing on a side below the algae cultivation photobioreactor (1) and extends to the outside thereof to be connected to a suspension stirring motor.

5. A microalgae culture filtration and sterilization device according to claim 4, characterized in that: The suspension stirring motor is electrically connected to the controller via a wire.

6. The microalgae culture filtration and sterilization device according to claim 1, characterized in that: The filter cleaning nozzle (23) is connected to an external filter water supply device via a pipeline, and the filter water supply device is electrically connected to the controller via a wire.

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