Photobioreactor

Abstract

The utility model provides a photobioreactor which comprises a buffer container, a communicating pipeline and a power device, the communicating pipeline is provided with a plurality of communicating liquid outlets and communicating liquid inlets, the communicating liquid outlets and the communicating liquid inlets are respectively communicated with a buffer cavity of the buffer container, and the communicating liquid outlets are distributed around the axis of the buffer cavity at intervals; and the liquid outlet direction of each communicating liquid outlet and / or the inner wall structure, opposite to the liquid outlet, in the buffer cavity is configured to enable liquid entering the buffer cavity to act on liquid in the buffer cavity and form a vortex rotating in the first direction. Through the special arrangement of the liquid outlet direction of the communicating liquid outlets and / or the inner wall structure of the buffer cavity, liquid in the buffer cavity can form vortexes rotating in the first direction, the wall sticking phenomenon is effectively reduced, and the vortexes can be formed more stably due to the fact that the communicating liquid outlets are multiple.

Description

Technical Field

[0001] The utility model relates to the technical field of microalgae cultivation, in particular to a photobioreactor. Background Art

[0002] Microalgae are a type of autotrophic plant found on land and in the oceans, boasting rich nutrients and high photosynthetic rates. They hold great promise for development in the fields of food, medicine, genetic engineering, and liquid fuels. With the increasing depletion of traditional fossil energy sources (such as oil and coal), microalgae, as a renewable energy source (such as oils and fats), have garnered significant attention and hold significant social significance. Therefore, the microalgae industry presents a broad prospect for application.

[0003] A photobioreactor is a device used to culture photosynthetic cells or tissues, achieving high photosynthetic efficiency. Microalgae and photosynthetic bacteria, in particular, can be cultured continuously or semi-continuously under optimal conditions at high density, yield, and quality. The continuous development of new, efficient, and simple photoreactors suitable for both research and production is becoming a crucial component in the development of algae and photosynthetic biotechnology. Years of photoreactor research have demonstrated that a variety of distinctive circular photosynthetic reactors hold great promise for future applications.

[0004] In the prior art, when culturing algae in a photobioreactor, microalgae often adhere to the inner wall of the buffer tank. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a photobioreactor, which, through the special arrangement of the liquid outlet direction of the connecting liquid outlet and / or the inner wall structure of the buffer chamber, can make the liquid in the buffer chamber form a vortex rotating in a first direction, effectively reducing the wall sticking phenomenon, and multiple connecting liquid outlets are provided, which can make the formation of the vortex more stable.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A photobioreactor, comprising:

[0008] a buffer container having a buffer cavity;

[0009] a communication pipe having a plurality of communication liquid outlets and a communication liquid inlet, wherein the communication liquid outlets and the communication liquid inlet are respectively communicated with the buffer chamber, and the plurality of communication liquid outlets are spaced apart and distributed around the axis of the buffer chamber;

[0010] and a power device for driving the liquid in the buffer cavity into the communicating pipe through the communicating liquid inlet, and driving the liquid in the communicating pipe into the buffer cavity through the plurality of communicating liquid outlets;

[0011] The liquid outlet direction of each of the communicating liquid outlets and / or the inner wall structure of the buffer cavity opposite to the liquid outlet are configured so that the liquid entering the buffer cavity can act on the liquid in the buffer cavity and form a vortex rotating in the first direction.

[0012] The first direction is clockwise or counterclockwise;

[0013] The multiple communicating liquid outlets are spaced around the axis of the buffer cavity only means that the multiple communicating liquid outlets are arranged along the circumference of the buffer cavity, and the distances from the communicating liquid outlets to the axis of the buffer cavity are not fixed and may be unequal.

[0014] With the above structure, when in use, under the drive of the power device, the culture liquid in the buffer chamber enters the communicating pipe, and the culture liquid in the communicating pipe enters the buffer chamber through the multiple communicating liquid outlets, thereby realizing a circulating flow;

[0015] Furthermore, because the liquid discharge direction of each of the communicating liquid outlets and / or the inner wall structure of the buffer chamber opposite to the liquid outlet is configured so that the liquid entering the buffer chamber can act on the liquid in the buffer chamber and form a vortex rotating in a first direction, when the culture liquid flows out of the plurality of communicating liquid outlets into the buffer chamber and contacts the culture liquid in the buffer chamber, the liquid flowing out of the communicating liquid outlets will act on the liquid in the buffer chamber to cause it to flow in the first direction and form a vortex, which can effectively reduce the adhesion of microalgae to the inner wall of the buffer chamber and make the culture liquid in the buffer chamber more uniform.

[0016] In the above structure, the communicating liquid outlets are provided in plurality, so that when the photobioreactor circulates, the vortex in the buffer chamber can be formed more stably and reliably;

[0017] Of course, if the liquid outlet direction of each of the communicating liquid outlets and the inner wall structure of the buffer chamber opposite to the liquid outlet meet the conditions at the same time, the culture liquid in the buffer chamber can be further made to form a vortex more easily.

[0018] Furthermore, when the liquid discharge direction of the communicating liquid outlet is configured so that the liquid entering the buffer chamber can act on the liquid in the buffer chamber and form a vortex rotating in the first direction, a first angle α is formed between the projection of the liquid discharge direction of the communicating liquid outlet on a horizontal plane and a horizontal line connecting the communicating liquid outlet and the axis of the buffer chamber; the first angle α is a non-zero angle, and the direction of the projection of the liquid discharge direction of the communicating liquid outlet on a horizontal plane onto the horizontal line connecting the communicating liquid outlet and the axis of the buffer chamber matches the first direction;

[0019] When the inner wall structure of the buffer chamber opposite to the liquid outlet is configured to enable the liquid entering the buffer chamber to act on the liquid in the buffer chamber and form a vortex rotating in the first direction, a liquid guide portion is formed on the inner wall of the buffer chamber opposite to the connected liquid outlet, and the liquid guide portion is used to guide the liquid to flow along the first direction.

[0020] The projection of the liquid discharge direction of the communicating liquid outlet on a horizontal plane onto the horizontal line connecting the communicating liquid outlet and the axis of the buffer chamber matches the first direction. This can be understood as follows: the projection of the liquid discharge direction of the communicating liquid outlet on a horizontal plane rotated in the first direction with the communicating liquid outlet as the origin will coincide with the horizontal line connecting the communicating liquid outlet and the axis of the buffer chamber; and the angle of rotation is the first included angle α.

[0021] With the above structure, since a first angle α is formed between the projection of the liquid outlet direction of the communicating liquid outlet on a horizontal plane and the horizontal line connecting the communicating liquid outlet and the axis of the buffer chamber, when the culture fluid flowing out of the communicating liquid outlet contacts the culture fluid in the buffer chamber, a force in a first direction is exerted on the culture fluid in the buffer chamber, causing the liquid in the buffer chamber to flow in the first direction to form a vortex.

[0022] Since a liquid guide portion is formed at a position on the inner wall of the buffer chamber opposite to the communicating liquid outlet, and the liquid guide portion is used to guide the liquid to flow in a first direction, the culture liquid flowing out of the communicating liquid outlet, after coming into contact with the liquid guide portion, flows in the first direction along the guide direction of the liquid guide portion. Therefore, when coming into contact with the culture liquid in the culture chamber, a force in the first direction is applied to the culture liquid in the buffer chamber, causing the liquid in the buffer chamber to flow in the first direction to form a vortex.

[0023] The above structural design is reasonable and reliable.

[0024] Furthermore, the first angle α is greater than 0 degrees but less than 90 degrees; the first angle α formed by the projection of the liquid outlet direction of each of the communicating liquid outlets on the horizontal plane and the horizontal line connecting the communicating liquid outlet and the axis of the buffer chamber is substantially equal;

[0025] The inner wall structure of at least a portion of the buffer cavity opposite to the liquid outlet is in an arc shape.

[0026] The fact that the first angle α corresponding to the liquid outlet direction of each of the communicating liquid outlets is substantially equal can be understood as follows: the difference between the first angles α corresponding to the liquid outlet directions of the two communicating liquid outlets does not exceed ±10 degrees.

[0027] By adopting the above structure, the restriction of the first angle makes the setting of the connecting liquid outlet more reasonable, so that the culture fluid flowing out of the connecting liquid outlet can better act on the liquid in the buffer chamber to make it flow in the first direction, so as to form a vortex more easily and stably; preferably, the first angle α is about 70 degrees to 80 degrees.

[0028] The inner wall structure of at least the portion of the buffer cavity opposite to the liquid outlet is arc-shaped, so that the culture fluid flowing out of the communicating liquid outlet can be guided by it to flow in the first direction when it contacts the inner wall structure; specifically, the interior of the buffer cavity as a whole adopts an arc-shaped structure.

[0029] Furthermore, the plurality of communicating liquid outlets are distributed at equal intervals around the axis of the buffer cavity; the equal intervals here refer to equal angular intervals.

[0030] With the above structure, the culture fluid flowing out of the multiple communicating liquid outlets can act more stably on the culture fluid in the buffer chamber, making it easier for the culture fluid in the buffer chamber to form a vortex, thereby avoiding other unnecessary effects.

[0031] Furthermore, the number of the communicating liquid outlets is set to an even number.

[0032] By adopting the above structure, the culture fluid flowing out of the multiple communicating liquid outlets can act more stably on the culture fluid in the buffer chamber, making it easier for the culture fluid in the buffer chamber to form a vortex, thereby avoiding other unnecessary effects; specifically, the number of the communicating liquid outlets is set to two.

[0033] Furthermore, the photobioreactor includes a stirring mechanism, which includes a stirring drive and a stirring blade. The stirring blade is located in the buffer chamber, and the stirring drive is drivingly connected to the stirring blade to drive the stirring blade to rotate along a first direction.

[0034] With the above structure, when the stirring driving member drives the stirring blade to rotate in the first direction, it can help the culture liquid in the buffer chamber to form a vortex, and can stir the culture liquid in the buffer chamber to make the culture liquid in the buffer chamber more uniform.

[0035] Furthermore, the rotation axis of the stirring blade is colinear with the axis of the buffer chamber.

[0036] The above structure makes the arrangement of the stirring blade more reasonable, so that the rotation of the stirring blade can help the culture liquid in the buffer chamber to form a vortex.

[0037] Furthermore, the stirring blade is arranged near the middle or bottom of the buffer chamber.

[0038] The above structure makes the arrangement of the stirring blade more reasonable, so that it can better stir the culture liquid in the buffer chamber and is more conducive to the formation of a vortex in the culture liquid in the buffer chamber.

[0039] Furthermore, the stirring mechanism includes a stirring connecting rod, the stirring drive member includes a stirring drive motor, the rotation axis of the output shaft of the stirring drive motor is colinear with the axis of the buffer chamber, and the output shaft of the stirring drive motor is driven and connected to the stirring blade through the stirring connecting rod.

[0040] The above structure makes the arrangement of the stirring mechanism more reasonable, and the arrangement of the stirring connecting rod facilitates the stirring member to drive the stirring blade located at the bottom of the buffer chamber.

[0041] Furthermore, the buffer container includes a buffer container body and a buffer liquid outlet pipe, the buffer container body has the buffer cavity, and the buffer container body is provided with a buffer liquid outlet connected to the buffer cavity, and the buffer liquid outlet pipe is connected to the buffer liquid outlet; the communicating liquid inlet is connected to the buffer cavity through the buffer liquid outlet pipe.

[0042] The above structure makes the structural arrangement of the buffer container more reasonable; specifically, the buffer container body adopts a buffer tank.

[0043] Furthermore, a side of the buffer liquid outlet communicating with the buffer cavity is formed on the bottom surface of the buffer cavity.

[0044] With the above structure, the liquid in the buffer cavity flows out through the buffer liquid outlet formed at the bottom of the buffer cavity, so that the liquid in the buffer cavity is more likely to form a vortex.

[0045] Furthermore, the side of the buffer liquid outlet communicating with the buffer cavity is located at the axis of the buffer cavity.

[0046] The above structure makes it easier for the liquid in the buffer cavity to form a vortex.

[0047] Furthermore, the side of the buffer cavity sidewall close to its bottom is formed as the cavity bottom sidewall, and along the direction from the top of the buffer cavity to the bottom of the buffer cavity, the distance from the cavity bottom sidewall to the buffer cavity axis gradually decreases.

[0048] The above structure makes it easier for the liquid in the buffer cavity to form a vortex. Specifically, the side wall of the bottom of the cavity is formed into a conical structure or a frustum structure.

[0049] Furthermore, the communicating pipe includes a common section and a plurality of branch sections, one end of the common section is formed with the communicating liquid inlet, one end of each of the branch sections is connected to the common section, and the other end is formed as the communicating liquid outlet.

[0050] The above structure makes the structure of the connecting pipe more reasonable. The formation of multiple branch sections can not only better form multiple connecting liquid outlets, but also help the culture fluid to flow more smoothly in the connecting pipe; specifically, there are two branch sections, and correspondingly, there are two connecting liquid outlets.

[0051] Furthermore, a branch opening and closing valve is provided at the connection point between the common section and each branch section for controlling whether the common section of the branch section is connected.

[0052] With the above structure, the setting of the branch opening and closing valve enables the user to selectively add one or more branch sections to the circulation; enables the user to increase or decrease the branch sections participating in the circulation according to their own needs; and when individual branch sections are damaged or cannot work normally, the circulation on the branch can be closed by closing the corresponding branch opening and closing valve to facilitate inspection and maintenance.

[0053] Furthermore, the common section includes a common pipeline and a multi-way connector, one end of the common pipeline is formed as the connecting liquid inlet, and the other end is connected and communicated with the multi-way connector, and the branch section is communicated with the multi-way connector.

[0054] The above structure makes the structural setting of the common section more reasonable.

[0055] Furthermore, one end of the branch section provided with the communicating liquid outlet passes through the top of the buffer container and extends into the interior of the buffer cavity.

[0056] The above structure makes the arrangement of the branch section more reasonable, and facilitates the easier arrangement of the liquid outlet direction of the end where the communicating liquid outlet is arranged.

[0057] Furthermore, the branch section includes a first branch pipeline, a second branch pipeline, a third branch pipeline, a fourth branch pipeline, a liquid outlet pipeline, and a plurality of connecting pipelines;

[0058] The first branch pipe is arranged outside the buffer container, and the first branch pipe has a height difference in the height direction of the buffer container, the first port of the first branch pipe is higher than the second port of the first branch pipe, and the first port is higher than the top surface of the buffer container;

[0059] The second branch pipe is provided on the side of the first port, and one end of the second branch pipe is connected to the first port through the connecting pipe, and the other end of the second branch pipe extends toward the axis side of the buffer cavity and is located on the top surface of the buffer container to form a third port;

[0060] One end of the third branch pipe is connected to the third port through the connecting pipe, and the other end extends through the top surface of the buffer container to the inside of the buffer cavity and is connected to one end of the liquid outlet pipe, and the other end of the liquid outlet pipe is formed with the communicating liquid outlet;

[0061] The fourth branch pipe is arranged on the side of the second port, and one end of the fourth branch pipe is connected to the second port through the connecting pipe, and the other end extends to the common section and is connected to the common section;

[0062] The connecting pipe and the liquid outlet pipe are in the shape of curved pipes.

[0063] The above structure makes the structure of the branch section more reasonable; specifically, the first branch pipe and the third branch pipe are arranged vertically, and the second branch pipe and the fourth branch pipe are arranged horizontally.

[0064] Furthermore, the power device includes a power pump, which is arranged at the connection between the buffer container and the connecting pipe, and the liquid inlet end of the power pump is connected to the buffer cavity of the buffer container, and the liquid outlet end of the power pump is connected to the connecting liquid inlet of the connecting pipe.

[0065] With the above structure, the power pump can provide power for the circulation of the culture solution. Specifically, the power pump is a water pump.

[0066] Furthermore, the communicating pipe is provided with an air inlet for supplying gas thereto; the gas tank supplies gas to the communicating pipe through the air inlet.

[0067] The above structure makes the structure of the communication pipe more reasonable, and the gas required for photobiological culture is introduced into the communication pipe through the air inlet.

[0068] Furthermore, the air inlet is arranged on a side of the communicating pipe close to the communicating liquid inlet.

[0069] The above structure makes the arrangement of the air inlet more reasonable, so that the gas can better contact with the photoorganisms.

[0070] Furthermore, there are one or more air inlets. When one air inlet is provided, the air inlet is provided on the common section; when multiple air inlets are provided, the number of the air inlets matches the number of the branch sections, and each branch section is provided with the air inlet.

[0071] The above structure makes the arrangement of the air inlet more reasonable. Preferably, a plurality of air inlets are provided, and each branch section is provided with an air inlet.

[0072] Furthermore, the photobioreactor includes a light source, and the light source includes a buffer container light source arranged in the buffer container and / or a pipeline light source arranged on one side of the communicating pipeline.

[0073] With the above structure, the light source can provide light for the cultivation of the photoorganisms, making the structure of the photobioreactor more reasonable; preferably, the light source includes the buffer container light source and the pipeline light source.

[0074] Further, when the light source includes the buffer container light source, the light emitting side of the buffer container light source extends into the buffer cavity, and the buffer container light source is arranged on the top of the buffer container;

[0075] When the light source includes the pipeline light source, the light-emitting side of the pipeline light source faces the connecting pipeline, and the connecting pipeline is made of light-transmitting material at least in the portion opposite to the pipeline light source; the pipeline light source is correspondingly provided on one side of one or more branch sections.

[0076] By adopting the above structure, the arrangement of the buffer container light source and the pipeline light source is more reasonable, so as to facilitate them to provide light to the photoorganisms.

[0077] Furthermore, the branch section includes a first branch pipe having a height difference in a height direction of the buffer container, and the pipe light source is arranged on one side of the first branch pipe.

[0078] The above structure makes the structure of the pipeline light source more reasonable, so that it can better provide light for the photoorganisms flowing through the first branch pipeline.

[0079] Furthermore, the pipeline light source has a length, and the length direction of the pipeline light source matches the extension direction of the corresponding first branch pipeline; the first branch pipeline is made of light-transmitting material at least in a portion opposite to the pipeline light source.

[0080] The above structure makes the structure of the pipeline light source more reasonable, so that it can better provide light for the photoorganisms flowing through the first branch pipeline.

[0081] Furthermore, the first branch pipe with the pipe light source provided on one side includes a first branch pipe connecting section, a second branch pipe connecting section, and a light-transmitting branch pipe. The first branch pipe connecting section and the second branch pipe connecting section respectively connect the two ends of the light-transmitting branch pipe with the pipes in the branch sections located on both sides of the light-transmitting branch pipe; the light-transmitting branch pipe is made of a light-transmitting material, and the pipe light source is arranged on one side of the light-transmitting branch pipe.

[0082] The above structure makes the structure of the first branch pipeline more reasonable.

[0083] Furthermore, the photobioreactor comprises a heating and thermostatic device capable of heating the liquid, and the heating and thermostatic device is arranged in the buffer cavity of the buffer container and / or in the communicating pipe.

[0084] The above structure makes the photobioreactor more reasonable, and the heating and thermostat device can provide a suitable culture temperature for the culture liquid; when the stirring mechanism is provided, preferably, the heating and thermostat device is provided in the communicating pipe.

[0085] Furthermore, when the heating and thermostatic device is arranged in the communicating pipe, the heating and thermostatic device is arranged in one or more of the branch sections.

[0086] The above structure makes the setting of the heating and constant temperature device arranged in the connecting pipe more reasonable; since the culture fluid is in a circulating state, only one heating and constant temperature device needs to be set, that is, only one heating and constant temperature device needs to be set in one branch section or the buffer cavity.

[0087] Furthermore, the photobioreactor includes a detection device capable of measuring the state of the liquid, and the detection device is arranged in the buffer cavity of the buffer container and / or in the communicating pipe.

[0088] The above structure makes the photobioreactor more reasonable, and the detection device can detect the state of the culture solution and provide feedback for the cultivator to check.

[0089] Furthermore, when the detection device is arranged in the communicating pipe, the detection device is arranged in one or more of the branch sections.

[0090] The above structure makes the detection device arranged in the communicating pipe more reasonable;

[0091] Since the culture fluid is in a circulating state, only one detection device for each function needs to be provided, that is, only one detection device with a corresponding function needs to be provided in one branch section or the buffer chamber; preferably, the detection device is provided on the branch section.

[0092] Specifically, the detection device includes a temperature sensor for detecting the temperature of the culture solution. The temperature sensor cooperates with the heating constant temperature device to better achieve the constant temperature effect of the culture solution; of course, the detection device can also include a pH value detection sensor for detecting the pH value of the culture solution, etc.

[0093] Furthermore, the photobioreactor includes a sampling channel, and the sampling channel is provided on the buffer container and communicated with the buffer cavity, or is provided on the communicating pipe and communicated with the communicating pipe.

[0094] With the above structure, the setting of the sampling channel makes it convenient for the cultivator to take samples; specifically, the sampling channel is set on the buffer container, and more specifically, the sampling channel is set on the buffer liquid outlet pipe and connected thereto; the buffer liquid outlet pipe is connected to the sampling channel and the power pump respectively through a three-way joint.

[0095] Furthermore, the photobioreactor includes a sampling on-off valve for controlling whether the sampling channel is connected to the buffer chamber or the communication pipe.

[0096] With the above structure, the setting of the sampling opening and closing valve can close the sampling channel when sampling is not required, and the sampling opening and closing valve is easy to operate, which is convenient for the user's sampling operation.

[0097] Furthermore, the photobioreactor includes a fixing frame, which matches the buffer container to fix and support the buffer container.

[0098] The above structure makes the structural setting of the photobioreactor more reasonable.

[0099] Compared with the prior art, the present invention has the following beneficial effects:

[0100] (1) The photobioreactor of the present invention can form a vortex rotating in the first direction of the liquid in the buffer chamber by means of the special arrangement of the liquid outlet direction of the communicating liquid outlet and / or the inner wall structure of the buffer chamber, thereby effectively reducing the wall sticking phenomenon. In addition, the plurality of communicating liquid outlets can make the formation of the vortex more stable.

[0101] (2) The photobioreactor of the present invention is provided with a stirring mechanism, which helps the culture fluid in the buffer chamber to form a vortex.

[0102] (3) The photobioreactor of the present invention is reasonably designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0103] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0104] Figure 1 This is a schematic diagram of the three-dimensional structure of the photobioreactor of the present invention;

[0105] Figure 2 A schematic diagram of the three-dimensional structure of the photobioreactor of the present invention from another angle (excluding the fixing frame);

[0106] Figure 3 This is a schematic structural diagram of the connecting pipes in the photobioreactor of the present invention;

[0107] Figure 4 This is a schematic diagram of a partial explosion structure of the connecting pipes in the photobioreactor of the present invention;

[0108] Figure 5 This is a schematic diagram of the liquid discharge direction of the liquid outlet of the photobioreactor of the present invention;

[0109] Figure 6 This is a schematic structural diagram of the stirring mechanism in the photobioreactor of the present invention;

[0110] Figure 7 Schematic diagrams of various embodiments of the photobioreactor of the present invention;

[0111] The names of the components corresponding to the reference numerals in the figures are: 1. buffer container; 101. buffer cavity; 102. liquid guide portion; 103. buffer container body; 1031. buffer liquid outlet; 1032. cavity bottom side wall; 104. buffer liquid outlet pipe; 2. connecting pipe; 201. connecting liquid outlet; 202. connecting liquid inlet; 203. common section; 2031. common pipe; 2032. multi-way connector; 204. branch section; 2041. first branch pipe; 2041a. first port; 2041b. second port; 2041c. first branch pipe connecting section; 2041d. second branch pipe connecting section; 2041e. light-transmitting branch pipe; 2042 , second branch pipeline; 2042a, third port; 2043, third branch pipeline; 2044, fourth branch pipeline; 2045, liquid outlet pipeline; 2046, connecting pipeline; 3, power unit; 301, power pump; 3011, liquid inlet end; 3012, liquid outlet end; 4, stirring mechanism; 401, stirring drive member; 4011, stirring drive motor; 402, stirring blade; 403, stirring connecting rod; 5, branch opening and closing valve; 6, air inlet; 7, light source; 701, buffer container light source; 702, pipeline light source; 8, heating constant temperature device; 9, detection device; 901, temperature sensor; 10, sampling channel; 11, sampling opening and closing valve; 12, fixing bracket. DETAILED DESCRIPTION

[0112] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0113] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0114] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an 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 aspect described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0115] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0116] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples, however, one skilled in the art will appreciate that the examples can be practiced without these specific details.

[0117] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0118] The following describes the technical solutions provided by various embodiments of the present application in conjunction with the accompanying drawings.

[0119] See Figures 1 to 7 The utility model provides a photobioreactor, comprising:

[0120] A buffer container 1 having a buffer chamber 101;

[0121] A communication pipe 2 having a plurality of communication liquid outlets 201 and a communication liquid inlet 202, wherein the communication liquid outlets 201 and the communication liquid inlet 202 are respectively connected to the buffer chamber 101, and the plurality of communication liquid outlets 201 are spaced apart around the axis of the buffer chamber 101;

[0122] and a power device 3 for driving the liquid in the buffer chamber 101 into the communication pipe 2 through the communication liquid inlet 202 and driving the liquid in the communication pipe 2 into the buffer chamber 101 through the plurality of communication liquid outlets 201;

[0123] The liquid outlet direction of each of the communicating liquid outlets 201 and / or the inner wall structure of the buffer cavity 101 opposite to the liquid outlet are configured so that the liquid entering the buffer cavity 101 can act on the liquid in the buffer cavity 101 and form a vortex rotating in the first direction.

[0124] The first direction is clockwise or counterclockwise;

[0125] The multiple communicating liquid outlets 201 are spaced around the axis of the buffer cavity 101 only means that the multiple communicating liquid outlets 201 are arranged along the circumference of the buffer cavity 101, and the distances from the communicating liquid outlets 201 to the axis of the buffer cavity 101 are not fixed and may be unequal.

[0126] With the above structure, when in use, driven by the power device 3, the culture liquid in the buffer chamber 101 enters the communicating pipe 2, and the culture liquid in the communicating pipe 2 enters the buffer chamber 101 through the multiple communicating liquid outlets 201, thereby achieving a circulating flow.

[0127] Furthermore, because the liquid outlet direction of each of the communicating liquid outlets 201 and / or the inner wall structure of the buffer chamber 101 opposite to the liquid outlet are configured so that the liquid entering the buffer chamber 101 can act on the liquid in the buffer chamber 101 and form a vortex rotating in the first direction, when the culture liquid flows out of the buffer chamber 101 through the multiple communicating liquid outlets 201 and contacts the culture liquid in the buffer chamber 101, the liquid flowing out of the communicating liquid outlets 201 will act on the liquid in the buffer chamber 101 to cause it to flow in the first direction and form a vortex, which can effectively reduce the adhesion of microalgae to the inner wall of the buffer chamber 101 and make the culture liquid in the buffer chamber 101 more uniform;

[0128] In the above structure, the communicating liquid outlets 201 are provided in plurality, so that when the photobioreactor circulates, the vortex formation in the buffer chamber 101 can be made more stable and reliable;

[0129] Of course, if the liquid outlet direction of each of the communicating liquid outlets 201 and the inner wall structure of the buffer chamber 101 opposite to the liquid outlet meet the conditions at the same time, the culture liquid in the buffer chamber 101 can be further made to form a vortex more easily.

[0130] See Figure 5Furthermore, when the liquid outlet direction of the communicating liquid outlet 201 is configured so that the liquid entering the buffer chamber 101 can act on the liquid in the buffer chamber 101 and form a vortex rotating in the first direction, a first angle α is formed between the projection of the liquid outlet direction of the communicating liquid outlet 201 on the horizontal plane and the horizontal line connecting the communicating liquid outlet 201 and the axis of the buffer chamber 101; the first angle α is a non-zero angle, and the direction of the projection of the liquid outlet direction of the communicating liquid outlet 201 on the horizontal plane to the horizontal line connecting the communicating liquid outlet 201 and the axis of the buffer chamber 101 matches the first direction;

[0131] When the inner wall structure of the buffer chamber 101 opposite to the liquid outlet is configured to enable the liquid entering the buffer chamber 101 to act on the liquid in the buffer chamber 101 and form a vortex rotating in the first direction, a liquid guide portion 102 is formed on the inner wall of the buffer chamber 101 opposite to the connected liquid outlet 201, and the liquid guide portion 102 is used to guide the liquid to flow along the first direction.

[0132] The projection of the liquid discharge direction of the communicating liquid outlet 201 on the horizontal plane onto the horizontal line connecting the axis of the communicating liquid outlet 201 and the axis of the buffer chamber 101 matches the first direction. This can be understood as follows: the projection of the liquid discharge direction of the communicating liquid outlet 201 on the horizontal plane rotated in the first direction with the communicating liquid outlet 201 as the origin will coincide with the horizontal line connecting the axis of the communicating liquid outlet 201 and the axis of the buffer chamber 101; and the angle of rotation is the first included angle α.

[0133] With the above structure, since the projection of the liquid outlet direction of the communicating liquid outlet 201 on the horizontal plane forms a first angle α with the horizontal line connecting the communicating liquid outlet 201 and the axis of the buffer chamber 101, when the culture fluid flowing out of the communicating liquid outlet 201 contacts the culture fluid in the buffer chamber 101, a force in a first direction is exerted on the culture fluid in the buffer chamber 101, causing the liquid in the buffer chamber 101 to flow in the first direction to form a vortex.

[0134] Since a liquid guide portion 102 is formed on the inner wall of the buffer chamber 101 opposite to the communicating liquid outlet 201, and the liquid guide portion 102 is used to guide the liquid to flow in a first direction, the culture liquid flowing out of the communicating liquid outlet 201, after contacting the liquid guide portion 102, flows in the first direction guided by the liquid guide portion 102. Therefore, when contacting the culture liquid in the culture chamber, a force in the first direction is applied to the culture liquid in the buffer chamber 101, causing the liquid in the buffer chamber 101 to flow in the first direction to form a vortex.

[0135] The above structural design is reasonable and reliable.

[0136] Furthermore, the first angle α is greater than 0 degrees but less than 90 degrees; the first angle α formed between the projection of the liquid outlet direction of each of the communication outlets 201 on the horizontal plane and the horizontal line connecting the communication outlet 201 and the axis of the buffer chamber 101 is substantially equal;

[0137] The inner wall structure of at least the portion of the buffer cavity 101 opposite to the liquid outlet is in an arc shape.

[0138] The fact that the first angle α corresponding to the liquid outlet direction of each communicating liquid outlet 201 is substantially equal can be understood as follows: the difference between the first angles α corresponding to the liquid outlet directions of the two communicating liquid outlets 201 does not exceed ±10 degrees.

[0139] By adopting the above structure, the restriction of the first angle makes the setting of the connecting liquid outlet 201 more reasonable, so that the culture fluid flowing out of the connecting liquid outlet 201 can better act on the liquid in the buffer chamber 101 to make it flow in the first direction, so as to form a vortex more easily and stably; preferably, the first angle α is about 70 degrees to 80 degrees.

[0140] The inner wall structure of at least the portion of the buffer chamber 101 opposite to the liquid outlet is arc-shaped, so that the culture fluid flowing out of the communicating liquid outlet 201 can be guided to flow in the first direction when it contacts the inner wall structure; specifically, the interior of the buffer chamber 101 as a whole adopts an arc-shaped structure.

[0141] Furthermore, the plurality of communicating liquid outlets 201 are distributed at equal intervals around the axis of the buffer chamber 101 ; the equal intervals here refer to equal angular intervals.

[0142] With the above structure, the culture fluid flowing out of the multiple communicating liquid outlets 201 can act more stably on the culture fluid in the buffer chamber 101, making it easier for the culture fluid in the buffer chamber 101 to form a vortex, thereby avoiding other unnecessary effects.

[0143] Furthermore, the number of the communicating liquid outlets 201 is set to an even number.

[0144] By adopting the above structure, the culture fluid flowing out of the multiple communicating liquid outlets 201 can be more stable when acting on the culture fluid in the buffer chamber 101, making it easier for the culture fluid in the buffer chamber 101 to form a vortex, thereby avoiding causing other unnecessary effects; specifically, the number of the communicating liquid outlets 201 is set to two.

[0145] See Figure 1 、 Figure 6 , further, in some embodiments, the photobioreactor includes a stirring mechanism 4, such as Figure 7 As shown in Scheme B1 and Scheme B2, the stirring mechanism 4 includes a stirring drive 401 and a stirring blade 402. The stirring blade 402 is located in the buffer chamber 101. The stirring drive 401 is driven and connected to the stirring blade 402 to drive the stirring blade 402 to rotate in a first direction. In some embodiments, the photobioreactor is not provided with the stirring mechanism 4. Figure 7 As shown in Scheme A1, Scheme A2 and Scheme A3.

[0146] With the above structure, when the stirring driving member 401 drives the stirring blade 402 to rotate in the first direction, it can help the culture liquid in the buffer chamber 101 to form a vortex, and can stir the culture liquid in the buffer chamber 101 to make the culture liquid in the buffer chamber 101 more uniform.

[0147] Furthermore, the rotation axis of the stirring blade 402 is colinear with the axis of the buffer chamber 101 .

[0148] The above structure makes the arrangement of the stirring blade 402 more reasonable, so that the rotation of the stirring blade 402 can help the culture liquid in the buffer chamber 101 to form a vortex.

[0149] Furthermore, the stirring blade 402 is disposed near the middle or bottom of the buffer chamber 101 .

[0150] The above structure makes the arrangement of the stirring blade 402 more reasonable, so that it can better stir the culture solution in the buffer chamber 101 and is more conducive to forming a vortex in the culture solution in the buffer chamber 101.

[0151] Furthermore, the stirring mechanism 4 includes a stirring connecting rod 403, the stirring driving component 401 includes a stirring driving motor 4011, the rotation axis of the output shaft of the stirring driving motor 4011 is colinear with the axis of the buffer chamber 101, and the output shaft of the stirring driving motor 4011 is driven and connected to the stirring blade 402 through the stirring connecting rod 403.

[0152] The above structure makes the arrangement of the stirring mechanism 4 more reasonable. The arrangement of the stirring connecting rod 403 facilitates the stirring member to drive the stirring blade 402 located at the bottom of the buffer chamber 101 .

[0153] See Figure 2 and Figure 5Furthermore, the buffer container 1 includes a buffer container body 103 and a buffer liquid outlet pipe 104. The buffer container body 103 has the buffer cavity 101, and the buffer container body 103 is provided with a buffer liquid outlet 1031 connected to the buffer cavity 101. The buffer liquid outlet pipe 104 is connected to the buffer liquid outlet 1031; the communicating liquid inlet 202 is connected to the buffer cavity 101 through the buffer liquid outlet pipe 104.

[0154] The above structure makes the structural arrangement of the buffer container 1 more reasonable; specifically, the buffer container body 103 adopts a buffer tank.

[0155] Furthermore, a side of the buffer liquid outlet 1031 communicating with the buffer cavity 101 is formed on the bottom surface of the buffer cavity 101 .

[0156] With the above structure, the liquid in the buffer cavity 101 flows out through the buffer liquid outlet 1031 formed at the bottom of the buffer cavity 101 , so that the liquid in the buffer cavity 101 is more likely to form a vortex.

[0157] Furthermore, the side of the buffer liquid outlet 1031 communicating with the buffer cavity 101 is located at the axis of the buffer cavity 101 .

[0158] The above structure makes it easier for the liquid in the buffer chamber 101 to form a vortex.

[0159] See Figure 5 Furthermore, the side of the side wall of the buffer cavity 101 close to its bottom is formed as a cavity bottom side wall 1032, and along the direction from the top of the buffer cavity 101 to the bottom of the buffer cavity 101, the distance from the cavity bottom side wall 1032 to the axis of the buffer cavity 101 gradually decreases.

[0160] The above structure makes it easier for the liquid in the buffer cavity 101 to form a vortex. Specifically, the bottom side wall 1032 of the cavity is formed into a conical structure or a frustum structure.

[0161] See Figures 2 to 4 Furthermore, the connecting pipe 2 includes a common section 203 and multiple branch sections 204, one end of the common section 203 is formed with the connecting liquid inlet 202, one end of each branch section 204 is connected to the common section 203, and the other end is formed as the connecting liquid outlet 201.

[0162] The above structure makes the structure of the connecting pipe 2 more reasonable. The formation of multiple branch sections 204 can not only better form multiple connecting liquid outlets 201, but also help the culture fluid to flow more smoothly in the connecting pipe 2; specifically, there are two branch sections 204, and correspondingly, there are two connecting liquid outlets 201.

[0163] Furthermore, a branch opening and closing valve 5 is provided at the connection point between the common section 203 and each branch section 204 for controlling whether the common section 203 of the branch section 204 is connected.

[0164] With the above structure, the setting of the branch opening and closing valve 5 enables the user to selectively add one or more branch sections 204 to the circulation; enables the user to increase or decrease the branch sections 204 participating in the circulation according to their own needs; and when individual branch sections 204 are damaged or cannot work normally, the circulation on the branch can be closed by closing the corresponding branch opening and closing valve 5 to facilitate inspection and maintenance.

[0165] See Figure 4 Furthermore, the common section 203 includes a common pipeline 2031 and a multi-way connector 2032, one end of the common pipeline 2031 is formed as the connecting liquid inlet 202, and the other end is connected and communicated with the multi-way connector 2032, and the branch section 204 is communicated with the multi-way connector 2032.

[0166] The above structure makes the structural setting of the common section 203 more reasonable.

[0167] Furthermore, one end of the branch section 204 communicating with the liquid outlet 201 passes through the top of the buffer container 1 and extends into the interior of the buffer cavity 101 .

[0168] The above structure makes the arrangement of the branch section 204 more reasonable, and facilitates the arrangement of the liquid outlet direction of the communicating liquid outlet 201 at the end thereof where the communicating liquid outlet 201 is arranged.

[0169] See Figure 4 , further, the branch section 204 includes a first branch pipeline 2041, a second branch pipeline 2042, a third branch pipeline 2043, a fourth branch pipeline 2044, a liquid outlet pipeline 2045, and a plurality of connecting pipelines 2046;

[0170] The first branch pipe 2041 is disposed outside the buffer container 1, and the first branch pipe 2041 has a height difference in the height direction of the buffer container 1. The first port 2041a of the first branch pipe 2041 is located higher than the second port 2041b of the first branch pipe 2041, and the first port 2041a is higher than the top surface of the buffer container 1.

[0171] The second branch pipe 2042 is provided on the side of the first port 2041a, and one end of the second branch pipe 2042 is connected to the first port 2041a through the connecting pipe, and the other end of the second branch pipe 2042 extends toward the axis side of the buffer cavity 101 and is located on the top surface of the buffer container 1 to form a third port 2042a;

[0172] One end of the third branch pipe 2043 is connected to the third port 2042a through the connecting pipe 2046, and the other end extends through the top surface of the buffer container 1 to the inside of the buffer cavity 101 and is connected to one end of the liquid outlet pipe 2045. The other end of the liquid outlet pipe 2045 is formed with the communicating liquid outlet 201.

[0173] The fourth branch pipe 2044 is provided on the side of the second port 2041b, and one end of the fourth branch pipe 2044 is connected to the second port 2041b through the connecting pipe 2046, and the other end extends toward the common section 203 and is connected to the common section 203;

[0174] The connecting pipe 2046 and the liquid outlet pipe 2045 are in the shape of curved pipes.

[0175] The above structure makes the structure of the branch section 204 more reasonable; specifically, the first branch pipe 2041 and the third branch pipe 2043 are vertically arranged, and the second branch pipe 2042 and the fourth branch pipe 2044 are horizontally arranged.

[0176] See Figure 1 and Figure 2 Furthermore, the power device 3 includes a power pump 301, which is arranged at the connection between the buffer container 1 and the connecting pipe 2, and the liquid inlet end 3011 of the power pump 301 is connected to the buffer cavity 101 of the buffer container 1, and the liquid outlet end 3012 of the power pump 301 is connected to the connecting liquid inlet 202 of the connecting pipe 2.

[0177] With the above structure, the power pump 301 can provide power for the circulation of the culture solution. Specifically, the power pump 301 is a water pump.

[0178] See Figures 1 to 4 Furthermore, the communicating pipe 2 is provided with an air inlet 6 for supplying gas thereto; the gas tank supplies gas to the communicating pipe 2 through the air inlet 6 .

[0179] The above structure makes the structure of the communication pipe 2 more reasonable, and the gas required for photobiological culture is introduced into the communication pipe 2 through the air inlet 6 .

[0180] Furthermore, the air inlet 6 is provided on a side of the communicating pipe 2 close to the communicating liquid inlet 202 .

[0181] The above structure makes the arrangement of the air inlet 6 more reasonable, so that the gas can better contact with the photoorganisms.

[0182] Furthermore, one or more air inlets 6 are provided. When one air inlet 6 is provided, the air inlet 6 is provided on the common section 203 ; when multiple air inlets 6 are provided, the number of the air inlets 6 matches the number of the branch sections 204 , and each branch section 204 is provided with the air inlet 6 .

[0183] The above structure makes the arrangement of the air inlet 6 more reasonable. Preferably, a plurality of air inlets 6 are provided, and each branch section 204 is provided with an air inlet 6 .

[0184] See Figures 1 to 4 Furthermore, the photobioreactor includes a light source 7 , and the light source 7 includes a buffer container light source 701 arranged in the buffer container 1 and / or a pipe light source 702 arranged on one side of the connecting pipe 2 .

[0185] With the above structure, the light source 7 can provide light for the cultivation of the photoorganisms, making the structure of the photobioreactor more reasonable; preferably, the light source 7 includes the buffer container light source 701 and the pipeline light source 702.

[0186] Further, when the light source 7 includes the buffer container light source 701, the light emitting side of the buffer container light source 701 extends into the buffer cavity 101, and the buffer container light source 701 is arranged on the top of the buffer container 1;

[0187] When the light source 7 includes the pipe light source 702, the light-emitting side of the pipe light source 702 faces the connecting pipe 2, and the connecting pipe 2 is made of light-transmitting material at least in the portion opposite to the pipe light source 702; the pipe light source 702 is correspondingly provided on one side of one or more branch sections 204.

[0188] The above structure makes the arrangement of the buffer container light source 701 and the pipeline light source 702 more reasonable, so as to facilitate them to provide light to the photoorganisms.

[0189] See Figure 4 Furthermore, the branch section 204 includes a first branch pipe 2041 having a height difference in the height direction of the buffer container 1 , and the pipe light source 702 is arranged on one side of the first branch pipe 2041 .

[0190] The above structure makes the structure of the pipeline light source 702 more reasonable, so that it can better provide light for the photoorganisms flowing through the first branch pipeline 2041.

[0191] Furthermore, the pipeline light source 702 has a length, and the length direction of the pipeline light source 702 matches the extension direction of the corresponding first branch pipeline 2041; the first branch pipeline 2041 is made of light-transmitting material at least in the portion opposite to the pipeline light source 702.

[0192] The above structure makes the structure of the pipeline light source 702 more reasonable, so that it can better provide light for the photoorganisms flowing through the first branch pipeline 2041.

[0193] Furthermore, the first branch pipe 2041, on one side of which the pipe light source 702 is provided, includes a first branch pipe connecting section 2041c, a second branch pipe connecting section 2041d, and a light-transmitting branch pipe 2041e. The first branch pipe connecting section 2041c and the second branch pipe connecting section 2041d respectively connect the two ends of the light-transmitting branch pipe 2041e with the pipes in the branch sections 204 located on both sides of the light-transmitting branch pipe 2041e; the light-transmitting branch pipe 2041e is made of light-transmitting material, and the pipe light source 702 is arranged on one side of the light-transmitting branch pipe 2041e.

[0194] The above structure makes the structure of the first branch pipeline 2041 more reasonable.

[0195] See Figure 7 Furthermore, in some embodiments, the photobioreactor includes a heating thermostat 8 capable of heating the liquid, such as Figure 7 As shown in Scheme A2, Scheme A3 and Scheme B2, the heating thermostat 8 is arranged in the buffer chamber 101 of the buffer container 1 and / or in the communicating pipe 2; in some embodiments, the photobioreactor is not provided with the heating thermostat 8, such as Figure 7 As shown in Scheme A1 and Scheme B1.

[0196] The above structure makes the photobioreactor more reasonable, and the heating and thermostat device 8 can provide a suitable culture temperature for the culture liquid; when the stirring mechanism 4 is provided, preferably, the heating and thermostat device 8 is provided in the connecting pipe 2.

[0197] Furthermore, when the heating and thermostatic device 8 is arranged in the communicating pipe 2 , the heating and thermostatic device 8 is arranged in one or more of the branch sections 204 .

[0198] The above structure makes the arrangement of the heating and thermostat device 8 in the communicating pipe 2 more reasonable. Since the culture medium is in a circulating state, only one heating and thermostat device 8 is required, that is, only one heating and thermostat device 8 is required in each branch section 204 or the buffer chamber 101.

[0199] In some embodiments, the heating constant temperature device 8 is arranged in the buffer cavity 101 of the buffer container 1, such as Figure 7 As shown in the scheme A3; in some embodiments, the heating constant temperature device 8 is provided in the communicating pipe 2, as shown in FIG. Figure 7 As shown in Scheme A2 and Scheme B2.

[0200] See Figure 3 Furthermore, the photobioreactor includes a detection device 9 capable of measuring the liquid state, and the detection device 9 is arranged in the buffer cavity 101 of the buffer container 1 and / or in the connecting pipe 2.

[0201] The above structure makes the photobioreactor more reasonable. The detection device 9 can detect the state of the culture solution and provide feedback for the cultivator to check.

[0202] Furthermore, when the detection device 9 is arranged in the communicating pipe 2 , the detection device 9 is arranged in one or more of the branch sections 204 .

[0203] The above structure makes the detection device 9 provided in the communicating pipe 2 more reasonable.

[0204] Since the culture medium is in a circulating state, only one detection device 9 for each function needs to be set, that is, only one detection device 9 with a corresponding function needs to be set in one branch section 204 or the buffer chamber 101; preferably, the detection device 9 is set on the branch section 204.

[0205] Specifically, the detection device 9 includes a temperature sensor 901 for detecting the temperature of the culture solution. The temperature sensor 901 cooperates with the heating constant temperature device 8 to better achieve the constant temperature effect of the culture solution; of course, the detection device 9 can also include a pH value detection sensor for detecting the pH value of the culture solution, etc.

[0206] See Figure 1 、 Figure 2 Furthermore, the photobioreactor includes a sampling channel 10 , which is arranged on the buffer container 1 and communicates with the buffer cavity 101 or is arranged on the communicating pipe 2 and communicates with the communicating pipe 2 .

[0207] With the above structure, the setting of the sampling channel 10 makes it convenient for the cultivator to take samples; specifically, the sampling channel is set on the buffer container 1, and more specifically, the sampling channel 10 is set on the buffer liquid outlet pipe 104 and connected thereto; the buffer liquid outlet pipe 104 is connected to the sampling channel 10 and the power pump 301 respectively through a three-way joint.

[0208] Furthermore, the photobioreactor includes a sampling on-off valve 11 for controlling whether the sampling channel 10 is connected to the buffer chamber 101 or the connecting pipe 2 .

[0209] With the above structure, the setting of the sampling opening and closing valve 11 can close the sampling channel 10 when sampling is not required, and the sampling opening and closing valve 11 is easy to operate, which is convenient for the user's sampling operation.

[0210] See Figure 1 Furthermore, the photobioreactor includes a fixing frame 12 , and the fixing frame 12 matches the buffer container 1 to fix and support the buffer container 1 .

[0211] The above structure makes the structural setting of the photobioreactor more reasonable.

[0212] The same or similar parts between the various embodiments in this specification can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0213] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A photobioreactor, characterized in that: include: A buffer container (1) having a buffer chamber (101); a communication pipe (2), having a plurality of communication liquid outlets (201) and a communication liquid inlet (202), wherein the communication liquid outlets (201) and the communication liquid inlet (202) are respectively connected to the buffer chamber (101), and the plurality of communication liquid outlets (201) are spaced apart and distributed around the axis of the buffer chamber (101); and a power device (3) for driving the liquid in the buffer chamber (101) into the communicating pipe (2) through the communicating liquid inlet (202), and driving the liquid in the communicating pipe (2) into the buffer chamber (101) through the plurality of communicating liquid outlets (201); The liquid outlet direction of each of the communicating liquid outlets (201) and / or the inner wall structure of the buffer cavity (101) opposite to the liquid outlet are configured so that the liquid entering the buffer cavity (101) can act on the liquid in the buffer cavity (101) and form a vortex rotating in the first direction.

2. The photobioreactor according to claim 1, wherein: When the liquid outlet direction of the communicating liquid outlet (201) is configured so that the liquid entering the buffer cavity (101) can act on the liquid in the buffer cavity (101) and form a vortex rotating in a first direction, a first angle α is formed between the projection of the liquid outlet direction of the communicating liquid outlet (201) on a horizontal plane and a horizontal line connecting the axis of the communicating liquid outlet (201) and the buffer cavity (101); the first angle α is a non-zero angle, and the direction of the projection of the liquid outlet direction of the communicating liquid outlet (201) on a horizontal plane to the horizontal line connecting the axis of the communicating liquid outlet (201) and the buffer cavity (101) matches the first direction; When the inner wall structure of the buffer cavity (101) opposite to the liquid outlet is configured so that the liquid entering the buffer cavity (101) can act on the liquid in the buffer cavity (101) and form a vortex rotating in a first direction, a liquid guide portion (102) is formed on the inner wall of the buffer cavity (101) opposite to the communicating liquid outlet (201), and the liquid guide portion (102) is used to guide the liquid to flow along the first direction.

3. The photobioreactor according to claim 2, wherein: The first angle α is greater than 0 degrees but less than 90 degrees; the first angle α formed between the projection of the liquid outlet direction of each of the communicating liquid outlets (201) on the horizontal plane and the horizontal line connecting the communicating liquid outlet (201) and the axis of the buffer chamber (101) is substantially equal; The inner wall structure of at least the portion of the buffer cavity (101) opposite to the liquid outlet is an arc-shaped structure; The plurality of communicating liquid outlets (201) are distributed at equal intervals around the axis of the buffer cavity (101), and the number of the communicating liquid outlets (201) is set to an even number.

4. The photobioreactor according to claim 1, wherein: The invention comprises a stirring mechanism (4), wherein the stirring mechanism (4) comprises a stirring driving member (401) and a stirring blade (402), wherein the stirring blade (402) is located in the buffer chamber (101), and the stirring driving member (401) is drivingly connected to the stirring blade (402) to drive the stirring blade (402) to rotate in a first direction.

5. The photobioreactor according to claim 4, characterized in that: The rotation axis of the stirring blade (402) is collinear with the axis of the buffer chamber (101); The stirring blade (402) is arranged near the middle or bottom of the buffer chamber (101); The stirring mechanism (4) includes a stirring connecting rod (403), and the stirring driving member (401) includes a stirring driving motor (4011). The rotation axis of the output shaft of the stirring driving motor (4011) is colinear with the axis of the buffer chamber (101), and the output shaft of the stirring driving motor (4011) is drivingly connected to the stirring blade (402) through the stirring connecting rod (403).

6. The photobioreactor according to claim 1, characterized in that: The buffer container (1) comprises a buffer container body (103) and a buffer liquid outlet pipe (104); the buffer container body (103) has the buffer cavity (101), and the buffer container body (103) is provided with a buffer liquid outlet (1031) communicating with the buffer cavity (101); the buffer liquid outlet pipe (104) is communicated with the buffer liquid outlet (1031); the communicating liquid inlet (202) is communicated with the buffer cavity (101) via the buffer liquid outlet pipe (104); The side of the buffer liquid outlet (1031) communicating with the buffer cavity (101) is formed on the bottom surface of the buffer cavity (101); The side of the buffer liquid outlet (1031) communicating with the buffer cavity (101) is located at the axis of the buffer cavity (101); A side of the side wall of the buffer cavity (101) close to the bottom thereof is formed as a cavity bottom side wall (1032), and along the direction from the top of the buffer cavity (101) to the bottom of the buffer cavity (101), the distance from the cavity bottom side wall (1032) to the axis of the buffer cavity (101) gradually decreases.

7. The photobioreactor according to claim 1, characterized in that: The communication pipe (2) comprises a common section (203) and a plurality of branch sections (204); one end of the common section (203) is formed with the communication liquid inlet (202); one end of each branch section (204) is connected to the common section (203), and the other end is formed as the communication liquid outlet (201); A branch opening and closing valve (5) is provided at the connection point between the common section (203) and each branch section (204) for controlling whether the branch section (204) and the common section (203) are connected; The common section (203) comprises a common pipeline (2031) and a multi-way connector (2032); one end of the common pipeline (2031) is formed as the communicating liquid inlet (202), and the other end is connected to and communicates with the multi-way connector (2032); the branch section (204) is communicated with the multi-way connector (2032); One end of the branch section (204) provided with the communicating liquid outlet (201) passes through the top of the buffer container (1) and extends into the interior of the buffer cavity (101); The branch section (204) includes a first branch pipeline (2041), a second branch pipeline (2042), a third branch pipeline (2043), a fourth branch pipeline (2044), a liquid outlet pipeline (2045), and a plurality of connecting pipelines (2046); The first branch pipe (2041) is arranged outside the buffer container (1), and the first branch pipe (2041) has a height difference in the height direction of the buffer container (1), the position of the first port (2041a) of the first branch pipe (2041) is higher than the position of the second port (2041b) of the first branch pipe (2041), and the first port (2041a) is higher than the top surface of the buffer container (1); The second branch pipe (2042) is arranged on the side of the first port (2041a), and one end of the second branch pipe (2042) is connected to the first port (2041a) through the connecting pipe, and the other end extends toward the axial side close to the buffer cavity (101) and is located on the top surface of the buffer container (1) to form a third port (2042a); One end of the third branch pipe (2043) is connected to the third port (2042a) via the connecting pipe (2046), and the other end extends through the top surface of the buffer container (1) to the inside of the buffer cavity (101) and is connected to one end of the liquid outlet pipe (2045), and the other end of the liquid outlet pipe (2045) is formed with the communicating liquid outlet (201); The fourth branch pipe (2044) is arranged on the side of the second port (2041b), and one end of the fourth branch pipe (2044) is connected to the second port (2041b) through the connecting pipe (2046), and the other end extends toward the common section (203) and is connected to the common section (203); The connecting pipe (2046) and the liquid outlet pipe (2045) are in the shape of curved pipes.

8. The photobioreactor according to claim 1, wherein: The power device (3) comprises a power pump (301), the power pump (301) being arranged at the connection between the buffer container (1) and the communicating pipe (2), and the liquid inlet end (3011) of the power pump (301) being in communication with the buffer chamber (101) of the buffer container (1), and the liquid outlet end (3012) of the power pump (301) being in communication with the communicating liquid inlet (202) of the communicating pipe (2).

9. The photobioreactor according to claim 1, characterized in that: The communication pipe (2) comprises a common section (203) and a plurality of branch sections (204); one end of the common section (203) is formed with the communication liquid inlet (202); one end of each branch section (204) is connected to the common section (203), and the other end is formed as the communication liquid outlet (201); The communicating pipe (2) is provided with an air inlet (6) for supplying gas thereto; The air inlet (6) is arranged on a side of the communicating pipe (2) close to the communicating liquid inlet (202); One or more air inlets (6) are provided. When one air inlet (6) is provided, the air inlet (6) is provided on the common section (203); when multiple air inlets (6) are provided, the number of air inlets (6) provided matches the number of branch sections (204), and each branch section (204) is provided with the air inlet (6); The photobioreactor comprises a light source (7), and the light source (7) comprises a buffer container light source (701) arranged in the buffer container (1) and / or a pipeline light source (702) arranged on one side of the connecting pipeline (2); When the light source (7) includes the buffer container light source (701), the light-emitting side of the buffer container light source (701) extends into the buffer cavity (101), and the buffer container light source (701) light source (7) is arranged on the top of the buffer container (1); When the light source (7) includes the pipeline light source (702), the light-emitting side of the pipeline light source (702) faces the connecting pipeline (2), and the connecting pipeline (2) is made of a light-transmitting material at least in a portion opposite to the pipeline light source (702); and the pipeline light source (702) is correspondingly provided on one side of one or more branch sections (204); The branch section (204) comprises a first branch pipe (2041) having a height difference in the height direction of the buffer container (1), and the pipe light source (702) is arranged on one side of the first branch pipe (2041); The pipeline light source (702) has a length, and the length direction of the pipeline light source (702) matches the extension direction of the corresponding first branch pipeline (2041); the first branch pipeline (2041) is made of a light-transmitting material at least in a portion opposite to the pipeline light source (702); The first branch pipe (2041) having the pipe light source (702) provided on one side comprises a first branch pipe connecting section (2041c), a second branch pipe connecting section (2041d), and a light-transmitting branch pipe (2041e); the first branch pipe connecting section (2041c) and the second branch pipe connecting section (2041d) respectively connect the two ends of the light-transmitting branch pipe (2041e) with the pipes in the branch sections (204) located on both sides of the light-transmitting branch pipe (2041e); the light-transmitting branch pipe (2041e) is made of a light-transmitting material, and the pipe light source (702) is provided on one side of the light-transmitting branch pipe (2041e); The photobioreactor comprises a heating and thermostatic device (8) capable of heating the liquid, wherein the heating and thermostatic device (8) is arranged in the buffer chamber (101) of the buffer container (1) and / or in the connecting pipe (2); When the heating and constant temperature device (8) is arranged in the communicating pipe (2), the heating and constant temperature device (8) is arranged in one or more of the branch sections (204); The photobioreactor comprises a detection device (9) capable of measuring the liquid state, wherein the detection device (9) is arranged in the buffer cavity (101) of the buffer container (1) and / or in the connecting pipe (2); When the detection device (9) is arranged in the communicating pipe (2), the detection device (9) is arranged in one or more of the branch sections (204); The detection device (9) includes a temperature sensor (901).

10. The photobioreactor according to claim 1, characterized in that: It comprises a sampling channel (10), wherein the sampling channel (10) is arranged on the buffer container (1) and communicates with the buffer cavity (101), or is arranged on the communication pipe (2) and communicates with the communication pipe (2); The photobioreactor comprises a sampling on-off valve (11) for controlling whether the sampling channel (10) is in communication with the buffer chamber (101) or the communication pipe (2); The photobioreactor comprises a fixing frame (12), and the fixing frame (12) matches the buffer container (1) to fix and support the buffer container (1).

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