A photobioreactor
By designing spirally coiled reactor pipes and gas source devices in the photobioreactor, the problems of short light path and low space utilization were solved, achieving efficient photosynthesis of microalgae and uniform mixing of the culture medium.
Patent Information
- Application Number
- CN202522082444.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-28
AI Technical Summary
Existing column-type photobioreactors have a short optical path during circulation operation, which affects the photosynthesis of microalgae and has low space utilization.
Design a photobioreactor in which the reactor pipes are spirally coiled around the outside of a buffer container to increase the optical path length, and gas is introduced into the culture medium through a gas source device for stirring and providing carbon dioxide to ensure that the microalgae are in full contact with nutrients.
It improves the light energy absorption efficiency and space utilization of microalgae, avoids microalgae sedimentation, and ensures the mixing uniformity of the culture medium and the photosynthetic effect.
Smart Images
Figure CN224678037U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photobiological cultivation, and in particular to a photobioreactor. Background Technology
[0002] Microalgae are a type of autotrophic plant that is widely distributed on land and in the ocean, rich in nutrients, and has a high degree of photosynthesis; they have great development prospects in the fields of food, medicine, genetic engineering, and liquid fuels.
[0003] A photobioreactor is a device used for the culture of photosynthetic organisms' cells or tissues, exhibiting high photosynthetic efficiency. In particular, it enables the high-density, high-yield, and high-quality continuous or semi-continuous culture of microalgae and photosynthetic bacteria under optimal conditions. The continuous development of novel, efficient, and simple photobioreactors suitable for research and production is becoming an important part of the development of algae and photosynthetic biotechnology.
[0004] However, existing column-type photobioreactors typically have short pipes outside the buffer tank, resulting in a short light path during cyclic operation, which is detrimental to the photosynthesis of microalgae. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a photobioreactor in which at least part of the reactor pipe is spirally coiled around the outside of the buffer container, which can not only greatly increase the light path and enable microalgae to fully absorb light energy for photosynthesis, but also improve the space utilization rate.
[0006] To achieve the above objectives, the present invention employs the following technical solution:
[0007] A photobioreactor, comprising:
[0008] A buffer container having a length in a first direction, and having a buffer container sidewall extending along the first direction and a buffer cavity capable of holding liquid.
[0009] The reactor pipeline includes a reactor pipeline body, a liquid outlet pipe connected to the reactor pipeline body, and a liquid inlet pipe connected to the reactor pipeline body. The liquid outlet pipe has a liquid outlet connected to the buffer cavity of the buffer container, and the liquid inlet pipe has a liquid inlet connected to the buffer cavity of the buffer container. The reactor pipeline body is spirally coiled along the outer circumferential surface of the side wall of the buffer container and extends along the first direction. At least a portion of the reactor pipeline body is made of a light-transmitting material.
[0010] A driving device is used to drive the liquid in the reactor pipe to flow from the inlet of the pipe to the outlet of the pipe and enter the buffer chamber through the outlet of the pipe, and to drive the liquid in the buffer chamber to enter the reactor pipe through the inlet of the pipe.
[0011] Using the above technical solution, when the photobioreactor is working, under the drive of the driving device, the culture medium in the reactor pipe flows from the inlet of the pipe to the outlet of the pipe and enters the buffer chamber through the outlet of the pipe. The culture medium in the buffer chamber enters the reactor pipe through the inlet of the pipe, realizing circulation.
[0012] Because the reactor pipe body is spirally coiled, its length can be greatly extended within a limited space, thus significantly increasing the light-transmitting portion. This not only allows the reactor pipe to hold more culture medium, increasing the culture volume, but also extends the time the culture medium spends within the reactor pipe body, thereby increasing the optical path length and improving light utilization. This allows the microalgae in the culture medium to more fully absorb light energy for photosynthesis. Furthermore, since the reactor pipe body is coiled around the buffer container, the space occupied by the photobioreactor is reduced, improving space utilization.
[0013] Furthermore, the photobioreactor is a gas source device for introducing gas into the buffer container and / or the reactor pipeline;
[0014] When the gas source device is used to introduce gas into the buffer container, the buffer container is provided with a buffer container air inlet that communicates with the buffer chamber, and the gas source device introduces gas into the buffer container through the buffer container air inlet.
[0015] When the gas source device is used to introduce gas into the reactor pipeline, the reactor pipeline is provided with a reactor pipeline air inlet connected to its internal channel, and the gas source device introduces gas into the reactor pipeline through the reactor pipeline air inlet.
[0016] The above technical solution makes the photobioreactor more reasonable; the gas source device introduces gas into the buffer container and / or the reactor pipeline to provide carbon dioxide for the photosynthesis of microalgae;
[0017] Furthermore, when the gas source device introduces gas into the buffer container and / or the reactor pipeline, the introduced gas will have a certain stirring effect on the culture medium in the buffer container and / or the reactor pipeline, which can effectively prevent the accumulation of microalgae in the culture medium, improve the mixing uniformity, and ensure sufficient contact between microalgae and nutrients and gas.
[0018] Of course, when the gas source device is used to introduce gas into the buffer container, the buffer container is usually at least partially transparent to light or the buffer cavity is equipped with a buffer cavity light source so that the microalgae in the buffer container can carry out photosynthesis.
[0019] Typically, the gas source device simply supplies gas into the reactor pipeline.
[0020] Furthermore, when the buffer container is provided with the buffer container air inlet, the buffer container air inlet is located at the bottom position in the vertical direction of the buffer container, or located on the side of the buffer container and close to the bottom position in the vertical direction of the buffer container.
[0021] When the reactor pipeline is provided with an air inlet, the air inlet is located in the reactor pipeline close to the liquid inlet.
[0022] By adopting the above technical solution, the air inlet of the buffer container and / or the air inlet of the reactor pipeline are set more reasonably; the gas introduced by the gas source device can more effectively contact the microalgae, and the introduced gas can also better stir the culture medium.
[0023] Furthermore, the gas source device includes a mixing and processing unit, a carbon dioxide gas supply source connected to the mixing and processing unit to supply carbon dioxide to the mixing and processing unit, an adjustable gas supply source connected to the mixing and processing unit to supply non-carbon dioxide gas or non-pure carbon dioxide gas to the mixing and processing unit, and the mixing and processing unit outputs gas to the buffer container and / or the reactor pipeline, wherein the mixing and processing unit is configured to mix and process multiple gases input to it before outputting them externally.
[0024] By adopting the above technical solution, the gas source device is made more reasonable, and the mixing and processing unit can mix the carbon dioxide provided by the carbon dioxide gas source with the gas provided by the regulating gas source, so that the gas delivered by the gas source device to the buffer container and / or the reactor pipeline can meet the actual cultivation requirements.
[0025] Generally, the carbon dioxide supply source is a carbon dioxide cylinder, and the mixing and processing unit is a gas mixer.
[0026] Furthermore, the regulating air supply source is an air pump, which supplies air to the mixing and processing unit.
[0027] By adopting the above technical solution, the gas supply source adjustment becomes more reasonable.
[0028] Furthermore, the gas source device includes a carbon dioxide flow control unit and / or a regulating gas flow control unit. The carbon dioxide flow control unit is disposed between the carbon dioxide gas supply source and the mixing and processing unit for regulating and controlling the gas flow rate delivered from the carbon dioxide gas supply source to the mixing and processing unit. The regulating gas flow control unit is disposed between the regulating gas supply source and the mixing and processing unit for regulating and controlling the gas flow rate delivered from the regulating gas supply source to the mixing and processing unit.
[0029] By adopting the above technical solution, the gas source device is made more reasonable. Users can adjust the gas flow rate of the carbon dioxide supply source to the mixing and processing unit and / or the gas flow rate of the regulating gas supply source to the mixing and processing unit by adjusting the carbon dioxide flow control unit and / or the gas flow rate of the regulating gas supply source to the mixing and processing unit, thereby realizing the adjustment of the proportion of carbon dioxide in the mixed gas output by the mixing and processing unit.
[0030] The carbon dioxide flow control unit and the regulating gas flow control unit are mass flow controllers.
[0031] Furthermore, the gas source device includes a carbon dioxide detection unit, and the output of the mixing and processing unit is connected to the carbon dioxide detection unit to detect the carbon dioxide content in the mixed gas output by the mixing and processing unit;
[0032] The carbon dioxide detection unit is also connected to the top of the buffer chamber of the buffer container to detect the carbon dioxide content in the gas escaping from the top of the buffer chamber.
[0033] By adopting the above technical solution, the gas source device becomes more reasonable;
[0034] The carbon dioxide detection unit can detect the carbon dioxide content in the mixed gas output by the mixing processing unit, and therefore adjustments can be made based on the detection result.
[0035] The carbon dioxide detection unit can detect the carbon dioxide content in the gas escaping from the top of the buffer chamber, that is, detect the carbon dioxide content after the mixed gas comes into contact with the microalgae. Therefore, it can be adjusted according to the detection result. Of course, the two detection structures above can also be compared and adjusted according to the structure after comparison.
[0036] Furthermore, the photobioreactor includes a pipeline light source group, which includes at least one pipeline light source capable of emitting light. The pipeline light source is positioned close to the reactor pipeline, and the light emitted by the pipeline light source can illuminate the light-transmitting portion of the reactor pipeline.
[0037] By adopting the above technical solution, the photobioreactor becomes more rational; the pipeline light source group can provide light when natural light is insufficient, thereby ensuring that microalgae can fully absorb light energy for photosynthesis.
[0038] Furthermore, the pipe light source has a length, and the length direction of the pipe light source matches the first direction.
[0039] By adopting the above technical solution, the setting of the pipeline light source is made more reasonable; specifically, the pipeline light source adopts LED light strip.
[0040] Furthermore, multiple pipe light source groups are provided, and the multiple pipe light source groups are distributed at intervals around the outer peripheral surface of the buffer container sidewall of the buffer container.
[0041] By adopting the above technical solution, the photobioreactor becomes more rational; the multiple pipeline light source groups can provide sufficient light for the microalgae inside the reactor pipeline body;
[0042] Specifically, the plurality of the pipe light source groups are evenly distributed around the outer peripheral surface of the buffer container sidewall of the buffer container.
[0043] Furthermore, the pipeline light source group is located between the reactor pipeline and the buffer container sidewall of the buffer container, and / or on the side of the reactor pipeline away from the buffer container sidewall.
[0044] By adopting the above technical solution, the arrangement of the pipeline light source group is more reasonable; preferably, the pipeline light source group is located between the reactor pipeline and the buffer container sidewall of the buffer container, and is set close to the reactor pipeline body; since the reactor pipeline and the body are arranged in a coiled manner, the pipeline light source group is surrounded, so that the refracted or reflected light is directed to other parts of the reactor pipeline body, which greatly improves the light utilization rate.
[0045] Furthermore, the reactor pipe body includes a plurality of pipe spiral turns connected in sequence, each pipe spiral turn continuously coiled along the outer circumferential surface of the buffer container sidewall, and there is a predetermined distance between two adjacent pipe spiral turns in the first direction.
[0046] The spiral coil of the pipeline can be understood as a structure that wraps around the outer circumference of the side wall of the buffer container.
[0047] By adopting the above technical solution, the main body of the reactor pipe is more reasonable. Since there is a predetermined distance between two adjacent spiral turns of the pipe in the first direction, light can also pass between the two adjacent spiral turns of the pipe, so that the microalgae can fully contact the light.
[0048] Furthermore, along the first direction, a first pipeline body connecting end and a second pipeline body connecting end are respectively formed at both ends of the reactor pipeline body. The pipeline outlet pipe is connected and disposed on the side of the first pipeline body connecting end, and the pipeline outlet pipe is connected to the reactor pipeline body through the first pipeline body connecting end. The pipeline inlet pipe is connected and disposed on the side of the second pipeline body connecting end, and the pipeline inlet pipe is connected to the reactor pipeline body through the second pipeline body connecting end.
[0049] The above technical solution makes the reactor pipeline more rational.
[0050] Furthermore, the liquid outlet direction of the pipe outlet and / or the inner wall structure of the buffer cavity opposite to the pipe outlet are configured such that the liquid entering the buffer cavity can act on the liquid in the buffer cavity to form a vortex.
[0051] By adopting the above technical solution, when the culture medium flows out of the outlet of the pipe and into the buffer chamber, it will act on the culture medium in the buffer chamber to form a vortex, which can effectively reduce the phenomenon of microalgae sticking to the wall and make the culture medium in the buffer chamber more uniform.
[0052] Furthermore, when the liquid outlet direction of the pipe is configured such that the liquid entering the buffer chamber can act on the liquid in the buffer chamber to form a vortex, the projection of the liquid outlet direction on the horizontal plane forms a first included angle α between the horizontal line connecting the liquid outlet of the pipe and the vertical axis of the buffer chamber; the first included angle α is a non-zero included angle.
[0053] When the inner wall structure of the buffer chamber opposite to the outlet of the pipe is configured to allow the liquid entering the buffer chamber to act on the liquid in the buffer chamber to form a vortex, a liquid guide is formed in the inner wall of the buffer chamber opposite to the outlet of the pipe, and the liquid guide is used to guide the liquid to flow into the buffer chamber in a manner that is not perpendicular to the horizontal plane.
[0054] Using the above technical solution, since the projection of the liquid outlet direction of the pipe outlet on the horizontal plane forms a first included angle α with the horizontal line connecting the liquid outlet of the pipe and the vertical axis of the buffer chamber, the force applied to the culture medium in the buffer chamber when the culture medium flowing out of the pipe outlet comes into contact with the culture medium in the buffer chamber can achieve the formation of a vortex.
[0055] Due to the provision of the liquid guide, the culture medium flowing out of the outlet of the pipe comes into contact with the liquid guide and, guided by the liquid guide, flows into the culture medium in the buffer chamber in a manner that is not perpendicular to the horizontal plane, thereby enabling the force applied to the culture medium in the buffer chamber to form a vortex.
[0056] The above technical solution has a reasonable and reliable structural design.
[0057] Furthermore, the first included angle α is greater than 0 degrees but less than 90 degrees.
[0058] By adopting the above technical solution, the setting of the first included angle α is more reasonable, so that the culture medium flowing out of the outlet of the pipe can better act on the culture medium in the buffer chamber to stably form a vortex; preferably, the value of the first included angle α is about 70 degrees to 80 degrees.
[0059] Furthermore, at least the inner wall portion of the buffer cavity opposite to the liquid outlet of the pipeline has an arc-shaped structure, that is, the liquid guide portion has an arc-shaped structure.
[0060] By adopting the above technical solution, the liquid guide part is made more reasonable, enabling it to stably and reliably guide the liquid to flow into the buffer cavity in a manner that is not perpendicular to the horizontal plane, resulting in a reasonable structure; specifically, the inner wall of the buffer cavity adopts an arc-shaped structure as a whole.
[0061] Furthermore, the first direction is parallel to the vertical axial direction of the buffer container.
[0062] The above technical solution makes the photobioreactor more reasonable.
[0063] Furthermore, the buffer container includes a buffer container body and a buffer outlet pipe. The buffer container body has the buffer cavity and the buffer container sidewall, and the buffer container body is provided with a buffer outlet communicating with the buffer cavity. The buffer outlet pipe is communicating with the buffer outlet. The inlet pipe of the reactor pipeline is communicating with the buffer cavity through the buffer outlet pipe.
[0064] By adopting the above technical solution, the structure of the buffer container is made more reasonable; specifically, the buffer container body is a buffer tank.
[0065] Furthermore, the side of the buffer outlet that communicates with the buffer cavity is located at the bottom surface of the buffer cavity in the vertical direction.
[0066] Using the above technical solution, the liquid in the buffer chamber flows out through the buffer outlet formed at the bottom of the buffer chamber, making it easier for the liquid in the buffer chamber to form a vortex.
[0067] Furthermore, the side of the buffer outlet that communicates with the buffer cavity is located at the vertical axis of the buffer cavity.
[0068] The above technical solution makes it easier for the liquid in the buffer chamber to form vortices.
[0069] Furthermore, the inner wall of the buffer cavity is formed as a cavity guide inner wall on the side near its bottom position in the vertical direction. Along the direction from the top to the bottom of the buffer cavity in the vertical direction, the distance from the cavity guide inner wall to the vertical axis of the buffer cavity gradually decreases.
[0070] The above technical solution makes it easier for the liquid in the buffer chamber to form vortices.
[0071] Furthermore, the driving device includes a power pump, which is disposed between the buffer container and the reactor pipeline, and the power pump inlet is connected to the buffer chamber of the buffer container. Specifically, the power pump inlet is connected to the buffer outlet pipe to achieve communication with the buffer chamber, and the power pump outlet is connected to the pipeline inlet of the reactor pipeline.
[0072] By adopting the above technical solution, the driving device is made more reasonable, and the inlet of the reactor pipeline is connected to the buffer chamber of the buffer container through the driving device;
[0073] The power pump provides power for the circulation of the culture medium; specifically, the power pump is a centrifugal pump.
[0074] Furthermore, the photobioreactor includes a control module for controlling the operating state of the photobioreactor.
[0075] The above technical solution makes the photobioreactor more reasonable; specifically, the control module can control the working status of the drive device and the pipeline light source group.
[0076] Furthermore, the reactor pipe is provided with one or more auxiliary openings that communicate with its internal channels.
[0077] By adopting the above technical solution, the reactor pipeline is made more reasonable. Users can set up pH detection modules, temperature detection modules, etc. through the auxiliary opening. Of course, the auxiliary opening needs to be closed when not in use.
[0078] Furthermore, the auxiliary opening is located in the reactor pipe near the inlet of the pipe.
[0079] By adopting the above technical solution, the setting of the auxiliary opening is made more reasonable.
[0080] Furthermore, the main body of the reactor pipeline is made entirely of a light-transmitting material.
[0081] The above technical solution makes the reactor pipeline body more rational.
[0082] Furthermore, the reactor pipe body is made of transparent polycarbonate material.
[0083] By adopting the above technical solution, the main body of the reactor pipeline is made more reasonable, which can greatly reduce production costs.
[0084] Furthermore, the photobioreactor includes a mounting base that matches the buffer container for fixed support.
[0085] The above structure makes the structure of the photobioreactor more reasonable, and the fixed base provides adjustment for the placement of the buffer container.
[0086] Furthermore, the first direction is parallel to the vertical axial direction of the buffer container, the fixing base includes a fixing support plate and a support frame disposed below the fixing support plate for supporting the fixing support plate, the fixing support plate is provided with a first through hole, and the buffer container sidewall of the buffer container protrudes outward to form a convex ring with a diameter larger than the first through hole.
[0087] By adopting the above technical solution, the fit structure of the buffer container placed on the fixed base is more reasonable.
[0088] Furthermore, a roller is provided at the end of the support frame away from the fixed support plate. Specifically, the roller is configured as a swivel wheel with a self-locking brake.
[0089] The above technical solution makes it easy to move the photobioreactor by using the casters.
[0090] Furthermore, the photobioreactor includes a light source support, the number of which matches the number of the pipe light source groups, and their positions correspond one-to-one with the distribution of the pipe light source groups. The light source support extends along the first direction, and the pipe light source in each pipe light source group is installed on the corresponding light source support.
[0091] By adopting the above technical solution, the photobioreactor becomes more rational, and the setting of the light source support can provide an installation foundation for the installation of the pipeline light source;
[0092] Specifically, there are four sets of pipe light source groups, each set including two pipe light sources; correspondingly, there are also four light source supports; the two pipe light sources in each set are located on both sides of the corresponding light source support.
[0093] Furthermore, the light source bracket is fixedly mounted on the fixed base on the side facing the fixed base. When multiple light source brackets are provided, each light source bracket has an interconnection structure on the side away from the fixed base. In each interconnection structure, one end is connected to the light source bracket, and the other end extends towards each other in a bend and intersects at a preset intersection point.
[0094] By adopting the above technical solution, the setting of the light source bracket is more reasonable, stable and reliable.
[0095] Furthermore, the photobioreactor includes a stirring device for stirring the liquid within the buffer chamber.
[0096] The above technical solution makes the photobioreactor more reasonable, and the stirring device can stir the culture medium in the buffer chamber, thereby improving the mixing uniformity.
[0097] This is especially true when the culture medium circulates too slowly to form a vortex.
[0098] Furthermore, the stirring device includes a stirring paddle and a drive mechanism for driving the stirring paddle to rotate, the stirring paddle being located within the buffer chamber.
[0099] The above technical solution makes the stirring device more reasonable; specifically, the driving mechanism is a drive motor.
[0100] Furthermore, the stirring device includes a first magnetic attraction structure and a second magnetic attraction structure that can magnetically engage with the first magnetic attraction structure. The stirring paddle is connected to the first magnetic attraction structure to rotate synchronously with the first magnetic attraction structure, and the second magnetic attraction structure is disposed on the output shaft of the driving mechanism.
[0101] By adopting the above technical solution, the stirring device becomes more reasonable; when the driving mechanism is working, the second magnetic attraction structure rotates synchronously with the output shaft. Since the first magnetic attraction knot and the second magnetic attraction structure are magnetically attracted to each other, the rotation of the first magnetic attraction structure drives the stirring paddle to rotate.
[0102] Compared with the prior art, the present invention has the following beneficial effects:
[0103] (1) The photobioreactor of this utility model has at least part of its reactor pipe spirally coiled around the outside of the buffer container, which not only greatly increases the light path and allows microalgae to fully absorb light energy for photosynthesis, but also improves the space utilization rate.
[0104] (2) The photobioreactor of this utility model has a reasonable structure, low cost, and is easy to promote. Attached Figure Description
[0105] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0106] Figure 1 This is a three-dimensional structural schematic diagram of the photobioreactor of this utility model;
[0107] Figure 2 This is a schematic diagram of the buffer container, reactor pipeline and drive device in the photobioreactor of this utility model;
[0108] Figure 3 This is a schematic diagram of the connection structure of the reactor pipes and drive device in the photobioreactor of this utility model;
[0109] Figure 4 This is a schematic diagram of the structure used to form vortices within the buffer chamber in the photobioreactor of this invention;
[0110] Figure 5 This is a cross-sectional view of the buffer container body in the photobioreactor of this invention.
[0111] Figure 6 This is a schematic diagram of the structure of the fixed base, light source support, and pipeline light source assembly in the photobioreactor of this utility model;
[0112] Figure 7 This is a schematic diagram of the stirring device in the photobioreactor of this invention;
[0113] The component names corresponding to the various reference numerals in the figure are as follows: 1. Buffer container; 101. Buffer container sidewall; 102. Buffer cavity; 1021. Cavity guide inner wall; 103. Liquid guide part; 104. Buffer container body; 1041. Buffer outlet; 105. Buffer outlet pipe; 106. Convex ring; 2. Reactor pipe; 201. Reactor pipe body; 2011. Pipe spiral turn; 2012. First pipe body connecting end; 2013. Second pipe body connecting end; 202. Pipe outlet pipe; 2021. Pipe outlet; 203. Pipe inlet pipe; 2031. Pipe inlet; 204. Reactor pipe air inlet; 205. Auxiliary opening; 3. Drive unit 301. Power pump; 3011. Power pump inlet; 3012. Power pump outlet; 4. Gas source device; 401. Mixing and processing unit; 402. Regulating gas supply source; 403. Carbon dioxide flow control unit; 404. Regulating gas flow control unit; 405. Carbon dioxide detection unit; 5. Pipe light source group; 501. Pipe light source; 6. Control module; 7. Fixing base; 701. Fixing support plate; 7011. First perforation; 702. Support frame; 703. Roller; 8. Light source bracket; 9. Interconnection structure; 10. Stirring device; 1001. Stirring paddle; 1002. Drive mechanism; 1003. First magnetic attraction structure; 1004. Second magnetic attraction structure. Detailed Implementation
[0114] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0115] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0116] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0117] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0118] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.
[0119] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0120] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.
[0121] See Figures 1 to 7 This utility model provides a photobioreactor, comprising:
[0122] A buffer container 1 having a length in a first direction, and having a buffer container sidewall 101 extending along the first direction and a buffer cavity 102 capable of storing liquid.
[0123] The reactor pipeline 2 includes a reactor pipeline body 201, a liquid outlet pipe 202 connected to the reactor pipeline body 201, and a liquid inlet pipe 203 connected to the reactor pipeline body 201. The liquid outlet pipe 202 has a liquid outlet 2021 connected to the buffer cavity 102 of the buffer container 1, and the liquid inlet pipe 203 has a liquid inlet 2031 connected to the buffer cavity 102 of the buffer container 1. The reactor pipeline body 201 is spirally coiled along the outer circumferential surface of the buffer container sidewall 101 and extends along the first direction. At least a portion of the reactor pipeline body 201 is made of a light-transmitting material.
[0124] The driving device 3 is used to drive the liquid in the reactor pipe 2 to flow from the pipe inlet 2031 to the pipe outlet 2021 and enter the buffer chamber 102 through the pipe outlet 2021, and drive the liquid in the buffer chamber 102 to enter the reactor pipe 2 through the pipe inlet 2031.
[0125] Using the above technical solution, when the photobioreactor is working, under the drive of the driving device 3, the culture medium in the reactor pipe 2 flows from the pipe inlet 2031 to the pipe outlet 2021 and enters the buffer chamber 102 through the pipe outlet 2021. The culture medium in the buffer chamber 102 enters the reactor pipe 2 through the pipe inlet 2031, realizing circulation.
[0126] Because the reactor pipe body 201 is spirally coiled, its length can be greatly extended within a limited space, thus greatly increasing the light-transmitting portion of the reactor pipe 2. This not only allows the reactor pipe 2 to hold more culture medium, increasing the culture volume, but also extends the time the culture medium spends within the reactor pipe body 201, thereby increasing the optical path length and improving light utilization. This allows the microalgae in the culture medium to more fully absorb light energy for photosynthesis. Furthermore, because the reactor pipe body 201 is coiled around the buffer container 1, it reduces the space occupied by the photobioreactor, improving space utilization.
[0127] Furthermore, the photobioreactor is a gas source device 4 for introducing gas into the buffer container 1 and / or the reactor pipeline 2;
[0128] When the gas source device 4 is used to introduce gas into the buffer container 1, the buffer container 1 is provided with a buffer container 1 air inlet that is connected to the buffer chamber 102, and the gas source device 4 introduces gas into the buffer container 1 through the buffer container 1 air inlet.
[0129] When the gas source device 4 is used to introduce gas into the reactor pipeline 2, the reactor pipeline 2 is provided with a reactor pipeline air inlet 204 that is connected to its internal channel, and the gas source device 4 introduces gas into the reactor pipeline 2 through the reactor pipeline air inlet 204.
[0130] The above technical solution makes the photobioreactor more reasonable; the gas source device 4 introduces gas into the buffer container 1 and / or the reactor pipeline 2 to provide carbon dioxide for the photosynthesis of microalgae;
[0131] Furthermore, when the gas source device 4 introduces gas into the buffer container 1 and / or the reactor pipe 2, the introduced gas will have a certain stirring effect on the culture medium in the buffer container 1 and / or the reactor pipe 2, which can effectively prevent the accumulation of microalgae in the culture medium, improve the mixing uniformity, and ensure sufficient contact between microalgae and nutrients and gas.
[0132] Of course, when the gas source device 4 is used to introduce gas into the buffer container 1, the buffer container 1 is usually at least partially transparent to light or the buffer cavity 102 is provided with a light source so that the microalgae in the buffer container 1 can carry out photosynthesis.
[0133] Normally, the gas source device 4 simply supplies gas into the reactor pipeline 2.
[0134] Furthermore, when the buffer container 1 is provided with an air inlet, the air inlet is located at the bottom position in the vertical direction of the buffer container 1, or located on the side of the buffer container 1 and close to the bottom position in the vertical direction of the buffer container 1.
[0135] When the reactor pipeline 2 is provided with the reactor pipeline air inlet 204, the reactor pipeline air inlet 204 is located in the reactor pipeline 2 close to the pipeline liquid inlet 2031.
[0136] By adopting the above technical solution, the air inlet of the buffer container 1 and / or the air inlet 204 of the reactor pipeline are set more reasonably; the gas introduced by the gas source device 4 can more effectively contact the microalgae, and the introduced gas can also better stir the culture medium.
[0137] Furthermore, the gas source device 4 includes a mixing and processing unit 401, a carbon dioxide gas supply source is connected to the mixing and processing unit 401 to supply carbon dioxide to the mixing and processing unit 401, an adjustable gas supply source 402 is connected to the mixing and processing unit 401 to supply non-carbon dioxide gas or non-pure carbon dioxide gas to the mixing and processing unit 401, and the mixing and processing unit 401 outputs gas to the buffer container 1 and / or the reactor pipeline 2, wherein the mixing and processing unit 401 is configured to mix and process multiple gases input to it before outputting them externally.
[0138] By adopting the above technical solution, the gas source device 4 is made more reasonable. The mixing and processing unit 401 can mix the carbon dioxide provided by the carbon dioxide gas source with the gas provided by the regulating gas source 402, so that the gas delivered by the gas source device 4 to the buffer container 1 and / or the reactor pipeline 2 can meet the actual cultivation requirements.
[0139] Generally, the carbon dioxide supply source is a carbon dioxide cylinder, and the mixing and processing unit 401 is a gas mixer.
[0140] Furthermore, the regulating air supply source 402 is an air pump, which supplies air to the mixing and processing unit 401.
[0141] The above technical solution makes the gas supply source 402 more reasonable.
[0142] Furthermore, the gas source device 4 includes a carbon dioxide flow control unit 403 and / or a regulating gas flow control unit 404. The carbon dioxide flow control unit 403 is disposed between the carbon dioxide gas supply source and the mixing and processing unit 401 to regulate and control the gas flow rate delivered from the carbon dioxide gas supply source to the mixing and processing unit 401. The regulating gas flow control unit 404 is disposed between the regulating gas supply source 402 and the mixing and processing unit 401 to regulate and control the gas flow rate delivered from the regulating gas supply source 402 to the mixing and processing unit 401.
[0143] By adopting the above technical solution, the gas source device 4 is made more reasonable. Users can adjust the gas flow rate of the carbon dioxide supply source to the mixing processing unit 401 and / or the gas flow rate of the regulating gas supply source 402 to the mixing processing unit 401 by adjusting the carbon dioxide flow control unit 403 and / or the regulating gas flow control unit 404, thereby realizing the adjustment of the proportion of carbon dioxide in the mixed gas output by the mixing processing unit 401.
[0144] The carbon dioxide flow control unit 403 and the regulating gas flow control unit 404 are mass flow controllers.
[0145] Furthermore, the gas source device 4 includes a carbon dioxide detection unit 405, and the output of the mixing and processing unit 401 is connected to the carbon dioxide detection unit 405 to detect the carbon dioxide content in the mixed gas output by the mixing and processing unit 401.
[0146] The carbon dioxide detection unit 405 is also connected to the top of the buffer chamber 102 of the buffer container 1 to detect the carbon dioxide content in the gas escaping from the top of the buffer chamber 102.
[0147] By adopting the above technical solution, the gas source device 4 becomes more reasonable;
[0148] The carbon dioxide detection unit 405 can detect the carbon dioxide content in the mixed gas output by the mixing processing unit 401, and can therefore adjust it according to the detection result.
[0149] The carbon dioxide detection unit 405 can detect the carbon dioxide content in the gas escaping from the top of the buffer chamber 102, that is, detect the carbon dioxide content after the mixed gas comes into contact with the microalgae. Therefore, it can be adjusted according to the detection result. Of course, the two detection structures above can also be compared and adjusted according to the structure after comparison.
[0150] Furthermore, the photobioreactor includes a pipeline light source group 5, which includes at least one pipeline light source 501 capable of emitting light. The pipeline light source 501 is disposed close to the reactor pipeline 2, and the light emitted by the pipeline light source 501 can illuminate the light-transmitting part of the reactor pipeline 2.
[0151] By adopting the above technical solution, the photobioreactor becomes more rational; the pipeline light source group 5 can provide light when natural light is insufficient, thereby ensuring that microalgae can fully absorb light energy for photosynthesis.
[0152] Furthermore, the pipe light source 501 has a length, and the length direction of the pipe light source 501 matches the first direction.
[0153] By adopting the above technical solution, the setting of the pipeline light source 501 is more reasonable; specifically, the pipeline light source 501 adopts an LED light strip.
[0154] Furthermore, multiple pipe light source groups 5 are provided, and the multiple pipe light source groups 5 are distributed at intervals around the outer peripheral surface of the buffer container sidewall 101 of the buffer container 1.
[0155] By adopting the above technical solution, the photobioreactor becomes more rational; the multiple pipeline light source groups 5 can provide sufficient light for the microalgae inside the reactor pipeline body 201;
[0156] Specifically, the plurality of the pipe light source groups 5 are evenly distributed around the outer peripheral surface of the buffer container sidewall 101 of the buffer container 1.
[0157] Furthermore, the pipeline light source group 5 is located between the reactor pipeline 2 and the buffer container sidewall 101 of the buffer container 1, and / or on the side of the reactor pipeline 2 away from the buffer container sidewall 101 of the buffer container 1.
[0158] By adopting the above technical solution, the arrangement of the pipeline light source group 5 is more reasonable; preferably, the pipeline light source group 5 is located between the reactor pipeline 2 and the buffer container side wall 101 of the buffer container 1, and is set close to the reactor pipeline body 201; since the reactor pipeline 2 and the body are arranged in a coiled manner, the pipeline light source group 5 is surrounded, so that the refracted or reflected light is directed to other parts of the reactor pipeline body 201, which greatly improves the utilization rate of light.
[0159] Furthermore, the reactor pipe body 201 includes a plurality of pipe spiral turns 2011 connected in sequence, each pipe spiral turn 2011 continuously coiled along the outer peripheral surface of the buffer container sidewall 101, and a predetermined distance between two adjacent pipe spiral turns 2011 in the first direction.
[0160] The pipe spiral 2011 can be understood as a structure that wraps around the outer circumference of the side wall 101 of the buffer container.
[0161] By adopting the above technical solution, the reactor pipe body 201 is made more reasonable. Since there is a predetermined distance between two adjacent pipe spiral turns 2011 in the first direction, light can also pass between the two adjacent pipe spiral turns 2011, so that microalgae can fully contact light.
[0162] Furthermore, along the first direction, a first pipeline body connection end 2012 and a second pipeline body connection end 2013 are respectively formed at both ends of the reactor pipeline body 201. The pipeline outlet pipe 202 is connected to the first pipeline body connection end 2012 side and is connected to the reactor pipeline body 201 through the first pipeline body connection end 2012. The pipeline inlet pipe 203 is connected to the second pipeline body connection end 2013 side and is connected to the reactor pipeline body 201 through the second pipeline body connection end 2013.
[0163] The above technical solution makes the reactor pipeline 2 more reasonable.
[0164] Furthermore, the discharge direction of the pipe outlet 2021 and / or the inner wall structure of the buffer chamber 102 opposite to the pipe outlet 2021 are configured such that the liquid entering the buffer chamber 102 can act on the liquid in the buffer chamber 102 to form a vortex.
[0165] By adopting the above technical solution, when the culture medium flows out of the outlet 2021 of the pipe and into the buffer chamber 102, it will act on the culture medium in the buffer chamber 102 to form a vortex, which can effectively reduce the phenomenon of microalgae sticking to the wall and make the culture medium in the buffer chamber 102 more uniform.
[0166] Furthermore, when the liquid outlet 2021 of the pipeline is configured such that the liquid entering the buffer chamber 102 can act on the liquid in the buffer chamber 102 to form a vortex, the projection of the liquid outlet 2021 on the horizontal plane and the horizontal line connecting the vertical axis of the pipeline outlet 2021 and the buffer chamber 102 form a first included angle α; the first included angle α is a non-zero included angle.
[0167] When the inner wall structure of the buffer chamber 102 opposite to the outlet 2021 of the pipe is configured such that the liquid entering the buffer chamber 102 can act on the liquid in the buffer chamber 102 to form a vortex, a liquid guide portion 103 is formed in the inner wall of the buffer chamber 102 opposite to the outlet 2021 of the pipe, and the liquid guide portion 103 is used to guide the liquid to flow into the buffer chamber 102 in a manner that is not perpendicular to the horizontal plane.
[0168] Using the above technical solution, since the projection of the liquid outlet 2021 on the horizontal plane forms a first angle α with the horizontal line connecting the vertical axis of the liquid outlet 2021 and the buffer chamber 102, the force applied to the culture medium in the buffer chamber 102 when the culture medium flowing out of the liquid outlet 2021 comes into contact with the culture medium in the buffer chamber 102 can achieve the formation of a vortex;
[0169] Due to the provision of the liquid guide 103, after the culture medium flowing out from the outlet 2021 of the pipe comes into contact with the liquid guide 103, it flows towards the culture medium in the buffer chamber 102 in a manner that is not perpendicular to the horizontal plane under the guidance of the liquid guide 103, thereby enabling the force applied to the culture medium in the buffer chamber 102 to form a vortex.
[0170] The above technical solution has a reasonable and reliable structural design.
[0171] Furthermore, the first included angle α is greater than 0 degrees but less than 90 degrees.
[0172] By adopting the above technical solution, the setting of the first included angle α is more reasonable, so that the culture medium flowing out of the outlet 2021 of the pipeline can better act on the culture medium in the buffer chamber 102 to stably form a vortex; preferably, the value of the first included angle α is about 70 degrees to 80 degrees.
[0173] Furthermore, at least the inner wall portion of the buffer cavity 102 opposite to the liquid outlet 2021 of the pipeline has an arc-shaped structure, that is, the liquid guide portion 103 has an arc-shaped structure.
[0174] By adopting the above technical solution, the liquid guide part 103 is more reasonable, enabling it to stably and reliably guide the liquid to flow into the buffer cavity 102 in a manner that is not perpendicular to the horizontal plane, resulting in a reasonable structure; specifically, the inner wall of the buffer cavity 102 adopts an arc-shaped structure as a whole.
[0175] Furthermore, the first direction is parallel to the vertical axial direction of the buffer container 1.
[0176] The above technical solution makes the photobioreactor more reasonable.
[0177] Further, the buffer container 1 includes a buffer container body 104 and a buffer outlet pipe 105. The buffer container body 104 has the buffer cavity 102 and the buffer container sidewall 101, and the buffer container body 104 is provided with a buffer outlet 1041 communicating with the buffer cavity 102. The buffer outlet pipe 105 is connected to the buffer outlet 1041. The inlet pipe 203 of the reactor pipe 2 is connected to the buffer cavity 102 through the buffer outlet pipe 105.
[0178] By adopting the above technical solution, the structure of the buffer container 1 is made more reasonable; specifically, the buffer container body 104 adopts a buffer tank.
[0179] Furthermore, the side of the buffer outlet 1041 that communicates with the buffer cavity 102 is located at the bottom surface of the buffer cavity 102 in the vertical direction.
[0180] Using the above technical solution, the liquid in the buffer chamber 102 flows out through the buffer outlet 1041 formed at the bottom of the buffer chamber 102, making it easier for the liquid in the buffer chamber 102 to form a vortex.
[0181] Furthermore, the side of the buffer outlet 1041 that communicates with the buffer cavity 102 is located at the vertical axis of the buffer cavity 102.
[0182] By adopting the above technical solution, the liquid in the buffer cavity 102 is more likely to form a vortex.
[0183] Furthermore, the inner wall of the buffer cavity 102 is formed as a cavity guide inner wall 1021 on the side near its bottom position in the vertical direction. Along the direction from the top to the bottom of the buffer cavity 102 in the vertical direction, the distance from the cavity guide inner wall 1021 to the vertical axis of the buffer cavity 102 gradually decreases.
[0184] By adopting the above technical solution, the liquid in the buffer cavity 102 is more likely to form a vortex.
[0185] Furthermore, the driving device 3 includes a power pump 301, which is disposed between the buffer container 1 and the reactor pipe 2. The power pump inlet 3011 of the power pump 301 is connected to the buffer chamber 102 of the buffer container 1. Specifically, the power pump inlet 3011 of the power pump 301 is connected to the buffer outlet pipe 105 to achieve communication with the buffer chamber 102, and the power pump outlet 3012 of the power pump 301 is connected to the pipe inlet 2031 of the reactor pipe 2.
[0186] By adopting the above technical solution, the driving device 3 is made more reasonable, and the inlet 2031 of the reactor pipe 2 is connected to the buffer chamber 102 of the buffer container 1 through the driving device 3.
[0187] The power pump 301 provides power for the circulation of the culture medium; specifically, the power pump 301 is a centrifugal pump.
[0188] Furthermore, the photobioreactor includes a control module 6 for controlling the operating state of the photobioreactor.
[0189] The above technical solution makes the photobioreactor more reasonable; specifically, the control module 6 can control the working status of the drive device 3 and the pipeline light source group 5.
[0190] Furthermore, the reactor pipe 2 is provided with one or more auxiliary openings 205 that communicate with its internal channels.
[0191] By adopting the above technical solution, the reactor pipeline 2 is made more reasonable. Users can set up pH detection modules, temperature detection modules, etc. through the auxiliary opening 205. Of course, when not in use, the auxiliary opening 205 needs to be closed.
[0192] Furthermore, the auxiliary opening 205 is located in the reactor pipe 2 near the pipe inlet 2031.
[0193] By adopting the above technical solution, the setting of the auxiliary opening 205 is made more reasonable.
[0194] Furthermore, the reactor pipeline body 201 is entirely made of a light-transmitting material.
[0195] The above technical solution makes the reactor pipeline body 201 more reasonable.
[0196] Furthermore, the reactor pipe body 201 is made of transparent polycarbonate material.
[0197] By adopting the above technical solution, the reactor pipeline body 201 becomes more reasonable, which can greatly reduce production costs.
[0198] Furthermore, the photobioreactor includes a mounting base 7, which is matched with the buffer container 1 for fixed support of the buffer container 1.
[0199] The above structure makes the structure of the photobioreactor more reasonable, and the fixed base 7 provides adjustment for the placement of the buffer container 1.
[0200] Furthermore, the first direction is parallel to the vertical axial direction of the buffer container 1. The fixed base 7 includes a fixed support plate 701 and a support frame 702 disposed below the fixed support plate 701 to support the fixed support plate 701. The fixed support plate 701 is provided with a first through hole 7011. The buffer container sidewall 101 of the buffer container 1 protrudes outward to form a convex ring 106 with a diameter larger than the first through hole 7011.
[0201] By adopting the above technical solution, the fit structure of the buffer container 1 on the fixed base 7 is made more reasonable.
[0202] Furthermore, a roller 703 is provided at one end of the support frame 702 away from the fixed support plate 701. Specifically, the roller 703 is configured as a swivel wheel with a self-locking brake.
[0203] The above technical solution makes it easy to move the photobioreactor by using the casters.
[0204] Furthermore, the photobioreactor includes a light source support 8. The number of light source supports 8 matches the number of pipe light source groups 5, and their positions correspond one-to-one with the distribution positions of the pipe light source groups 5. The light source supports 8 extend along the first direction, and the pipe light source 501 in each pipe light source group 5 is installed on the corresponding light source support 8.
[0205] By adopting the above technical solution, the photobioreactor becomes more reasonable, and the setting of the light source support 8 can provide an installation foundation for the installation of the pipeline light source 501.
[0206] Specifically, there are four sets of pipe light source groups 5, each set of pipe light source group 5 includes two pipe light sources 501; correspondingly, there are also four light source brackets 8; the two pipe light sources 501 of each set of pipe light source groups 5 are arranged on both sides of the corresponding light source bracket 8.
[0207] Furthermore, the light source bracket 8 is fixedly mounted on the fixed base 7 on the side facing the fixed base 7. When multiple light source brackets 8 are provided, each light source bracket 8 is provided with an interconnection structure 9 on the side away from the fixed base 7. In each interconnection structure 9, one end is connected to the light source bracket 8, and the other end extends towards each other in a bend and intersects at a preset intersection point.
[0208] By adopting the above technical solution, the setting of the light source bracket 8 is more reasonable, stable and reliable.
[0209] Furthermore, in some embodiments, the photobioreactor includes a stirring device 10 for stirring the liquid within the buffer chamber 102.
[0210] The above technical solution makes the photobioreactor more reasonable, and the stirring device 10 can stir the culture medium in the buffer chamber 102, which can improve the mixing uniformity.
[0211] This is especially true when the culture medium circulates too slowly to form a vortex.
[0212] Furthermore, the stirring device 10 includes a stirring paddle 1001 and a driving mechanism 1002 for driving the stirring paddle 1001 to rotate, wherein the stirring paddle 1001 is located inside the buffer chamber 102.
[0213] The above technical solution makes the stirring device 10 more reasonable; specifically, the driving mechanism 1002 is a drive motor.
[0214] Furthermore, the stirring device 10 includes a first magnetic structure 1003 and a second magnetic structure 1004 that can magnetically engage with the first magnetic structure 1003. The stirring paddle 1001 is connected to the first magnetic structure 1003 to rotate synchronously with the first magnetic structure 1003, and the second magnetic structure 1004 is disposed on the output shaft of the drive mechanism 1002.
[0215] By adopting the above technical solution, the stirring device 10 is made more reasonable; when the driving mechanism 1002 is working, the second magnetic structure 1004 rotates synchronously with the output shaft. Since the first magnetic junction and the second magnetic structure 1004 are magnetically attracted to each other, the first magnetic structure 1003 rotates and drives the stirring paddle 1001 to rotate.
[0216] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.
[0217] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be defined by the scope of the claims.
Claims
1. A photobioreactor, characterized in that... ,include: A buffer container (1) has a length in a first direction and has a buffer container sidewall (101) extending along the first direction and a buffer cavity (102) capable of storing liquid. The reactor pipe (2) includes a reactor pipe body (201), a pipe outlet (202) connected to the reactor pipe body (201), and a pipe inlet (203) connected to the reactor pipe body (201). The pipe outlet (202) has a pipe outlet (2021) connected to the buffer chamber (102) of the buffer container (1), and the pipe inlet (203) has a pipe inlet (2031) connected to the buffer chamber (102) of the buffer container (1). The reactor pipe body (201) is spirally coiled along the outer circumferential surface of the side wall (101) of the buffer container, and the reactor pipe body (201) extends along the first direction. At least part of the reactor pipe body (201) is made of a light-transmitting material. The driving device (3) is used to drive the liquid in the reactor pipe (2) to flow from the inlet (2031) to the outlet (2021) and enter the buffer chamber (102) through the outlet (2021), and drive the liquid in the buffer chamber (102) to enter the reactor pipe (2) through the inlet (2031).
2. The photobioreactor according to claim 1, characterized in that: Gas source device (4) for introducing gas into the buffer container (1) and / or the reactor pipeline (2); When the gas source device (4) is used to introduce gas into the buffer container (1), the buffer container (1) is provided with an air inlet that is connected to the buffer chamber (102), and the gas source device (4) introduces gas into the buffer container (1) through the air inlet of the buffer container (1). When the gas source device (4) is used to introduce gas into the reactor pipe (2), the reactor pipe (2) is provided with a reactor pipe inlet (204) connected to its internal channel, and the gas source device (4) introduces gas into the reactor pipe (2) through the reactor pipe inlet (204).
3. The photobioreactor according to claim 2, characterized in that: When the buffer container (1) is provided with an air inlet, the air inlet is located at the bottom of the buffer container (1) in the vertical direction, or at the side of the buffer container (1) and close to the bottom of the buffer container (1) in the vertical direction. When the reactor pipe (2) is provided with the reactor pipe air inlet (204), the reactor pipe air inlet (204) is located in the reactor pipe (2) close to the pipe liquid inlet (2031).
4. The photobioreactor according to claim 2 or 3, characterized in that: The gas source device (4) includes a mixing and processing unit (401), a carbon dioxide gas supply source is connected to the mixing and processing unit (401) to supply carbon dioxide to the mixing and processing unit (401), an adjustable gas supply source (402) is connected to the mixing and processing unit (401) to supply non-carbon dioxide gas or non-pure carbon dioxide gas to the mixing and processing unit (401), and the mixing and processing unit (401) outputs gas to the buffer container (1) and / or the reactor pipeline (2), wherein the mixing and processing unit (401) is configured to: mix and process multiple gases input to it and then output them to the outside; The regulating air supply source (402) is an air pump, which supplies air to the mixing and processing unit (401); The gas source device (4) includes a carbon dioxide flow control unit (403) and / or a regulating gas flow control unit (404). The carbon dioxide flow control unit (403) is disposed between the carbon dioxide gas supply source and the mixing processing unit (401) for regulating and controlling the gas flow rate delivered from the carbon dioxide gas supply source to the mixing processing unit (401). The regulating gas flow control unit (404) is disposed between the regulating gas supply source (402) and the mixing processing unit (401) for regulating and controlling the gas flow rate delivered from the regulating gas supply source (402) to the mixing processing unit (401). The gas source device (4) includes a carbon dioxide detection unit (405), and the output of the mixing processing unit (401) is connected to the carbon dioxide detection unit (405) to detect the carbon dioxide content in the mixed gas output by the mixing processing unit (401). The carbon dioxide detection unit (405) is also connected to the top of the buffer chamber (102) of the buffer container (1) for detecting the carbon dioxide content in the gas escaping from the top of the buffer chamber (102).
5. The photobioreactor according to claim 1, characterized in that: The system includes a pipeline light source group (5), which includes at least one pipeline light source (501) capable of emitting light. The pipeline light source (501) is located close to the reactor pipeline (2), and the light emitted by the pipeline light source (501) can illuminate the light-transmitting part of the reactor pipeline (2). The pipe light source (501) has a length, and the length direction of the pipe light source (501) matches the first direction; Multiple pipe light source groups (5) are provided, and the multiple pipe light source groups (5) are distributed at intervals around the outer peripheral surface of the buffer container sidewall (101) of the buffer container (1). The pipeline light source group (5) is located between the reactor pipeline (2) and the buffer container sidewall (101) of the buffer container (1), and / or on the side of the reactor pipeline (2) away from the buffer container sidewall (101) of the buffer container (1).
6. The photobioreactor according to claim 1, characterized in that: The reactor pipe body (201) includes a plurality of pipe spiral coils (2011) connected in sequence. Each pipe spiral coil (2011) is continuously coiled along the outer circumferential surface of the buffer container sidewall (101). There is a predetermined distance between two adjacent pipe spiral coils (2011) in the first direction. Along the first direction, a first pipeline body connection end (2012) and a second pipeline body connection end (2013) are formed at both ends of the reactor pipeline body (201). The pipeline outlet pipe (202) is connected to the first pipeline body connection end (2012) side, and the pipeline outlet pipe (202) is connected to the reactor pipeline body (201) through the first pipeline body connection end (2012). The pipeline inlet pipe (203) is connected to the second pipeline body connection end (2013) side, and the pipeline inlet pipe (203) is connected to the reactor pipeline body (201) through the second pipeline body connection end (2013).
7. The photobioreactor according to claim 1, characterized in that: The discharge direction of the pipe outlet (2021) and / or the inner wall structure of the buffer chamber (102) opposite to the pipe outlet (2021) are configured such that the liquid entering the buffer chamber (102) can act on the liquid in the buffer chamber (102) to form a vortex. When the liquid outlet (2021) of the pipeline is configured such that the liquid entering the buffer chamber (102) can act on the liquid in the buffer chamber (102) to form a vortex, the projection of the liquid outlet (2021) on the horizontal plane forms a first angle α between the horizontal line connecting the vertical axis of the pipeline outlet (2021) and the vertical axis of the buffer chamber (102); the first angle α is a non-zero angle. When the inner wall structure of the buffer chamber (102) opposite to the outlet (2021) of the pipe is configured to allow the liquid entering the buffer chamber (102) to act on the liquid in the buffer chamber (102) to form a vortex, a liquid guide (103) is formed in the inner wall of the buffer chamber (102) opposite to the outlet (2021) of the pipe, and the liquid guide (103) is used to guide the liquid to flow into the buffer chamber (102) in a manner that is not perpendicular to the horizontal plane; The first included angle α is greater than 0 degrees but less than 90 degrees; The inner wall portion of the buffer cavity (102) at least opposite to the liquid outlet (2021) of the pipeline has an arc-shaped structure.
8. The photobioreactor according to claim 1 or 7, characterized in that: The first direction is parallel to the vertical axial direction of the buffer container (1); The buffer container (1) includes a buffer container body (104) and a buffer outlet pipe (105). The buffer container body (104) has the buffer cavity (102) and the buffer container sidewall (101). The buffer container body (104) is provided with a buffer outlet (1041) communicating with the buffer cavity (102). The buffer outlet pipe (105) is connected to the buffer outlet (1041). The inlet pipe (203) of the reactor pipe (2) is connected to the buffer cavity (102) through the buffer outlet pipe (105). The side of the buffer outlet (1041) that communicates with the buffer cavity (102) is located at the bottom surface of the buffer cavity (102) in the vertical direction; The side of the buffer outlet (1041) that communicates with the buffer cavity (102) is located at the vertical axis of the buffer cavity (102); The inner wall of the buffer cavity (102) is formed into a cavity guide inner wall (1021) on the side near its bottom position in the vertical direction. Along the direction from the top to the bottom of the buffer cavity (102) in the vertical direction, the distance from the cavity guide inner wall (1021) to the vertical axis of the buffer cavity (102) gradually decreases.
9. The photobioreactor according to claim 1, characterized in that: The driving device (3) includes a power pump (301), which is located between the buffer container (1) and the reactor pipe (2). The power pump inlet (3011) of the power pump (301) is connected to the buffer chamber (102) of the buffer container (1), and the power pump outlet (3012) of the power pump (301) is connected to the pipe inlet (2031) of the reactor pipe (2).
10. The photobioreactor according to claim 5, characterized in that: Includes a control module (6) for controlling the working state of the photobioreactor; The reactor pipe (2) is provided with one or more auxiliary openings (205) that communicate with its internal channel. The auxiliary opening (205) is located in the reactor pipe (2) close to the inlet (2031) of the pipe; The reactor pipeline body (201) is made entirely of a light-transmitting material; The reactor pipe body (201) is made of transparent polycarbonate material; The photobioreactor includes a mounting base (7) that matches the buffer container (1) for fixed support of the buffer container (1). The first direction is parallel to the vertical axial direction of the buffer container (1). The fixed base (7) includes a fixed support plate (701) and a support frame (702) disposed below the fixed support plate (701) for supporting the fixed support plate (701). The fixed support plate (701) is provided with a first through hole (7011). The buffer container sidewall (101) of the buffer container (1) protrudes outward to form a convex ring (106) with a diameter larger than the first through hole (7011). A roller (703) is provided at one end of the support frame (702) away from the fixed support plate (701), and the roller (703) is configured as a swivel wheel with a self-locking brake; The photobioreactor includes a light source support (8). The number of light source supports (8) is matched with the number of pipe light source groups (5), and their positions are matched with the positions of the pipe light source groups (5) and correspond one-to-one. The light source supports (8) extend along the first direction, and the pipe light source (501) in each pipe light source group (5) is installed on the corresponding light source support (8). The light source bracket (8) is fixedly mounted on the fixed base (7) on the side facing the fixed base (7). When there are multiple light source brackets (8), each light source bracket (8) is provided with an interconnection structure (9) on the side away from the fixed base (7). In each interconnection structure (9), one end is connected to the light source bracket (8), and the other end extends towards each other in a bend and intersects at a preset intersection point.