CN202246643U - Coupling-type photo-bioreactor - Google Patents

Abstract

The utility model discloses a coupled photobioreactor, which comprises a low-position flat photobioreactor, a high-position flat photobioreactor, a middle-position photobioreactor and an external circulation tube, wherein: the low-position flat photobiology and the high-position flat plate The inside of the photobioreactor is communicated through the middle photobioreactor; the outside of the low flat photobioreactor and the high flat photobioreactor are connected through the external circulation pipeline; the high flat photobioreactor A ventilation pipeline is provided, and the ventilation pipeline is connected with a high-pressure gas source. The utility model combines the respective advantages of a flat photobioreactor and a vertical tube photobioreactor, and can realize low-cost and high-density cultivation of microalgae with high added value.

Description

A coupled photobioreactor

technical field

The utility model relates to a photobioreactor, in particular to a coupled photobioreactor.

Background technique

Microalgae are a kind of aquatic (or terrestrial, aerial, symbiotic) lower plants with different phylogenies, small individuals, usually single cells or groups, and capable of photosynthesis. They are the earliest and most widely distributed plants in nature. , the largest variety and quantity of biomass resources. Microalgae have unique biological characteristics and are widely used in biopharmaceuticals, nutritional products, health products, sewage treatment, natural food processing, biological bait, biological fertilizer and renewable energy production, and have important economic and social value.

Many microalgae are rich in high value-added biologically active substances, such as proteins, polysaccharides, vitamins, β-carotene, polyunsaturated fatty acids (EPA, DHA, AA), lutein, etc., and become important biological substances for human future development. one of the resources. (1) Protein, some blue-green algae (spirulina) and green algae (chlorella) have high protein content and reasonable amino acid composition, containing 8 kinds of amino acids necessary for human body, which can be used as an important source of single-cell protein; (2) polysaccharides , Microalgae polysaccharides widely exist in microalgae cells, and have a wide range of physiological functions such as anti-tumor, anti-virus, anti-radiation damage, anti-mutation, anti-aging, anti-coagulation, lowering blood lipids, and regulating the body's immunity. Currently, there are many studies The microalgae polysaccharides include: Arthrospira (spirulina) polysaccharides, chlorella polysaccharides, Porphyridum polysaccharides, etc.; (3) pigments, mainly carotenoids (carotene, lutein) and phycobilin (Phycoerythrin, Phycocyanin). β-carotene is the precursor of vitamin A synthesis. It has anti-oxidation, anti-mutation, anti-aging, cancer prevention, and increased immunity. The content of β-carotene in Dunaliella salina accounts for 10% of the dry weight. %above. Lutein pigments and rich algae strains mainly include: Eustigmatophyceae (Eustigmatophyceae), astaxanthin (Haematococcus pluvialis), zeaxanthin (Nannochloropsis gaditana), lutein (Scenedesmus almeriensis, Muriellopsis sp.), fucus Flavin (Bacillariophyceae) etc. Phycocyanin (Spirulina) can be used as a photosensitizer for photodynamic therapy of cancer, and high-purity phycocyanin can be used as a fluorescent molecular probe for biological macromolecules; (4) polyunsaturated fatty acids (PUFA) , has unique physiological functions, prevents and treats cardiovascular diseases, cancer, regulates central nervous system and visual system functions, improves the body's immune function regulation ability, and prevents memory loss. Certain species of microalgae are rich in PUFAs, such as Cryptidinium cuspii (docosahexaenoic acid), diatoms and euophthora (eicosapentaenoic acid), spirulina (gamma-linolenic acid), Notch Edge green algae (arachidonic acid) and so on.

Microalgae has such important development and utilization value, but its industrialization process is relatively slow. At present, there are very few types of microalgae biological products available on the market, mainly concentrated in products produced by algae strains such as Spirulina, salina, Haematococcus pluvialis, Cryptidium cusvii and Chlorella, breaking through the production of microalgae. Low-cost high-density culture technology is the key to bringing microalgae biological products to the market. Microalgae can be cultivated on a large scale in a transparent culture device called a photobioreactor in a manner similar to microbial fermentation. Therefore, an efficient photobioreactor is the key equipment for quickly realizing large-scale cultivation of microalgae.

There are mainly two types of photobioreactors for microalgae cultivation: open and closed. The open photobioreactor has the advantages of simple structure, easy scale-up and low cost, and has been widely used in large-scale commercial microalgae cultivation. But it also has many disadvantages, such as small specific surface area, low utilization rate of light energy and _CO2 , easy pollution, poor control ability of environmental conditions (temperature, light, pH, etc.), etc., currently only a few kinds of microalgae (microalgae Algae, salina, spirulina, etc.) can be cultivated in open photobioreactors, while microalgae that require mild culture conditions and weak population competition can only be cultivated in closed photobioreactors. Compared with the open photobioreactor, the closed photobioreactor has the following advantages: (1) it is not easy to be polluted by dust, insects and miscellaneous bacteria, etc., and can realize purebred cultivation; (2) the cultivation conditions are easy to control (temperature, pH); (3) The culture density is high and easy to harvest; (4) It is suitable for the photoautotrophic culture of most microalgae; (5) It has a high specific surface area; (6) The utilization rate of light energy and CO ₂ is low High advantages, but these advantages of closed photobioreactors are at the expense of increased investment and operating costs.

At present, scientific research institutes and enterprises generally adopt traditional photobioreactors (raceway pool, flat plate type, pipeline type, vertical column type, hanging bag type, etc.) to cultivate high value-added economical microalgae, which have many technical shortcomings: ( 1) The photobioreactors designed by most scientific research units do not have the ability to scale up. Some utility models claim that they can realize the large-scale cultivation of microalgae, but they lack practical applications. After cost accounting, it is found that their construction costs are relatively low. (2) The production of economical microalgae with high added value is relatively low and the types of microalgae are limited (chlorella, salina, spirulina, etc.) During the cultivation process, human pathogenic bacteria may breed and affect the quality of the product; (3) There are also many shortcomings in the traditional closed photobioreactor, such as the oxygen desorption problem of the pipeline photobioreactor, the vertical column photobioreactor The series problem of the device, the selection of the light-transmitting film of the hanging bag photobioreactor, the contradiction between the increase of the optical path and the light attenuation of the flat photobioreactor, etc., the above problems limit the use of traditional closed photobioreactors. Wide application in large-scale cultivation of microalgae.

According to the latest statistics from the State Intellectual Property Office of China (2011), there are currently more than 90 utility models related to the large-scale cultivation of microalgae, involving various types of photobioreactors, including: fermenters with built-in light sources, flat photobioreactors, etc. Bioreactor, column photobioreactor, pipeline photobioreactor, bag photobioreactor, open photobioreactor, combined photobioreactor, etc. The design of the above-mentioned photobioreactors all has defects to a certain extent, which affects its application in the large-scale cultivation of microalgae. Among them, the pipe-type photobioreactor is difficult to decompose oxygen, difficult to clean, high in cost, and difficult in temperature control. The column photobioreactor does not have the problem of oxygen resolution and mixing, but its culture volume is small, it is not easy to expand (vertical and radial), the specific surface area is small, and the light in the center of the reactor is not easy to penetrate, and the production efficiency is low. The bag reactor has disadvantages such as difficult oxygen desorption and repeated use of transparent materials. In addition, its membrane has poor light transmission and the external reinforcement structure has obvious light shading. It needs further improvement to apply it to large-scale cultivation. The plate reactor reduces the influence of light attenuation by shortening the light path, which will lead to a decrease in the culture volume; the light path increases, the light attenuation phenomenon of the reactor is serious, the series connection of the reactor is difficult, and the investment cost is high. The fermenter with a built-in light source can solve the problem of lighting the algae liquid to a certain extent, but it also brings a series of potential negative effects, such as the light source being adhered by the algae liquid and the energy consumption of the light source.

In fact, for the cultivation of high value-added microalgae, closed photobioreactors are an ideal choice. On the one hand, some microalgae (Haematococcus pluvialis) are more sensitive to the environment, and open photobioreactors cannot meet the needs of cultivation; on the other hand, microalgae biological products are usually used in health care products, cosmetics, functional foods and pharmaceuticals. Among them, the above-mentioned industries have high requirements on raw materials, and open photobioreactors are easy to contaminate bacteria, viruses, protozoa and other miscellaneous algae. Some pollutants themselves are pathogenic to the human body, and some pollutants can produce toxins. Invisibly increases the cost of late culture detection and processing.

Constructing an efficient closed photobioreactor culture system is an important way to promote the development of microalgae industry. The design of a closed photobioreactor should follow the following principles: (1) low construction cost; (2) easy to scale up, easy to clean, and precise temperature control; (3) high utilization of light and carbon dioxide; (4) algae liquid The circulation is good, and the conversion speed of algae cells in the light and dark areas is fast. The utility model designs a new photobioreactor according to this principle, and realizes low-cost and high-density cultivation of microalgae through internal and external circulation of algae liquid.

Utility model content

In view of the above problems, the purpose of this utility model is to provide a coupled photobioreactor to realize low-cost and high-density cultivation of high value-added microalgae.

In order to achieve the above purpose, the technical solution provided by the utility model is a coupled photobioreactor, including a low flat photobioreactor, a high flat photobioreactor, a middle photobioreactor and an external circulation tube, wherein: The low flat photobiology and the inner side of the high flat photobioreactor communicate through the middle photobioreactor; the low flat photobiological and the outside of the high flat photobioreactor pass through the outer circulation pipeline Connected; the high-level flat photobioreactor is provided with a ventilation pipeline, and the ventilation pipeline is connected to a high-pressure gas source.

Preferably, the low flat plate photobioreactor includes front and rear main body transparent plates, a lower bottom tank, left and right special-shaped flanges and a lower top transparent plate, wherein: the front and rear main body transparent plates are embedded in the lower in the card slot of the bottom groove, and sealed with sealant; the left and right special-shaped flanges are arranged on the left and right sides of the low bottom groove, and the flange covers of the left and right special-shaped flanges are respectively provided with A plurality of through-pipe interfaces; the lower top transparent plate is bonded to the upper surface of the lower flat photobioreactor and sealed with a sealant, and an algae liquid port is opened on the lower top transparent plate to communicate with the middle Photobioreactor.

Preferably, the inner side of the pipe joint is a threaded joint, and the outer side is a smooth joint.

Preferably, the low flat photobioreactor is provided with two sets of ventilation pipelines, one set is located at the bottom of the low flat photobioreactor, and the other is close to the lower surface of the low top transparent plate.

Preferably, a serpentine condenser is arranged inside the low-level flat plate photobioreactor, and the water inlet and outlet of the serpentine condenser are arranged on the same flange cover.

Preferably, the elevated flat plate photobioreactor includes a transparent container, an elevated bottom tank, and an elevated bottom transparent plate, wherein: the transparent container is formed by bonding several transparent flat plates, and the side of the transparent container is provided with outer Circulation pipe interface; the high-position bottom tank supports the transparent container, the high-position bottom transparent plate is bonded to the high-position bottom tank, and the high-position bottom tank and the high-position bottom transparent plate are provided with algae The liquid port is used to communicate with the intermediate photobioreactor.

Preferably, the middle-level photobioreactor is a column-type photobioreactor, wherein the low-position top transparent plate, the high-position bottom tank, and the high-position bottom transparent plate are all provided with a plurality of circular holes.

Preferably, the low top transparent plate is a porous organic glass plate, wherein each small hole has a two-layer ladder structure inside.

Preferably, the middle photobioreactor is a flat photobioreactor with a short optical path, wherein a square groove is opened in the middle of the low top transparent plate, the high bottom groove and the high bottom transparent plate.

Preferably, it includes a metal support frame, the bottom surface of which is welded to the low bottom groove, and the upper surface is welded to the high bottom groove.

Compared with the prior art, the utility model proposes a new coupled photobioreactor cultivation system on the basis of a comprehensive analysis of the design principles of the photobioreactor, which combines a flat photobioreactor and a vertical tube photobioreactor Based on the advantages of each device, the low-cost and high-density cultivation of high value-added microalgae is realized. Specifically, by optimizing the design scheme of the coupled photobioreactor, the following technical effects can be achieved: first, to achieve effective temperature control of the photobioreactor; second, to realize the scale-up of the photobioreactor; third, to use The air-lift method solves the circulation of algae liquid; fourthly, the short-path photobioreactor (tubular type, flat-plate type) is coupled with the flat-plate reactor, which increases the effective illumination area of the reactor and improves the light exposure of algae cells. utilization rate.

Description of drawings

Fig. 1 is the structural representation of the utility model coupled photobioreactor;

Fig. 2 is the schematic diagram of algae fluid circulation of the coupled photobioreactor shown in Fig. 1;

Fig. 3 A is a schematic structural view of the column photobioreactor in Fig. 1;

Fig. 3B is a schematic diagram of the structure of the short-path flat-panel photobioreactor in Fig. 1;

Fig. 4 is a schematic structural view of the lower bottom tank in Fig. 1;

Fig. 5A is a front view of the lower bottom tank shown in Fig. 4;

Fig. 5B is a top view of the lower bottom tank shown in Fig. 4;

Fig. 5C is a left view of the lower bottom tank shown in Fig. 4;

Fig. 6 is a schematic diagram of the structure of the flange cover in Fig. 1;

Fig. 7 is a schematic diagram of the structure of the coupled photobioreactor type two;

Fig. 8A is a schematic diagram of the structure of the high bottom tank;

Fig. 8B is a structural schematic diagram of the metal inner support frame;

Fig. 9 is a structural schematic diagram of a porous organic glass plate;

Figure 10 coupled photobioreactor type-serial mode diagram;

Fig. 11 A series mode diagram of Type 2 coupled photobioreactor.

Detailed ways

The key point of the utility model is to introduce a "column photobioreactor or a short-diameter flat photobioreactor" into the traditional flat panel reactor to increase the illuminated area of the traditional flat panel reactor and improve the light exposure of microalgae. Utilization efficiency is used to realize low-cost and high-density cultivation of high value-added microalgae.

The following embodiment is a coupled photobioreactor, and the structure, function and working principle of the coupled photobioreactor will be described below.

The coupled photobioreactor includes a metal support frame, a low flat photobioreactor, a high flat photobioreactor, an external circulation tube, a column photobioreactor/short light path flat photobioreactor, and the column Taking a photobioreactor as an example, the structure, function and working principle of the main components are described as follows:

The main function of the metal support frame is to support and fix the high-position flat photobioreactor. The material is a metal square tube or round tube with certain rigidity.

The low flat plate photobioreactor is composed of front and rear transparent plates, a low bottom tank, a serpentine condenser, a ventilation pipe, special-shaped flanges, porous organic glass plates (or other transparent plates with openings) and other structures. Wherein the lower bottom groove (Fig. 4) is mainly used for the reinforcement of the bottom of the photobioreactor, and the lower bottom groove must be made of a metal material with certain rigidity and not easy to rust, or made of a plastic mold (the fine structure of the lower bottom groove as shown in Figures 5A-5C). The transparent plates of the front and rear main bodies are embedded in the card slots of the low bottom groove shown in Figure 4, and sealed with glass glue to prevent the culture solution from seeping out; the transparent plates can be made of ordinary glass, plexiglass, tempered glass and borosilicate glass. The special-shaped flange is installed or welded on the left and right sides of the low bottom tank. The functions of the special-shaped flange are: (1) to facilitate the cleaning of the reactor; (2) the flange cover (Figure 6) can weld the metal interface , to facilitate the connection of condensation pipe, ventilation pipe and external diversion pipe. The serpentine condenser tube is installed inside the low-level flat plate photobioreactor for cooling the algae liquid; the water inlet and outlet of the serpentine condenser tube are set on the same flange cover, which can be disassembled and installed through the threaded interface; the serpentine condenser tube The material of the condenser tube is a metal tube with fast heat transfer (such as stainless steel tube, copper tube and aluminum tube). There are two sets of ventilation pipelines in the low-level flat-plate photobioreactor, one of which is located at the bottom of the low-level flat-plate reactor, which is used for the mixing of the algae liquid and the supplement of carbon dioxide in the flat-plate reactor; the other is close to the lower surface of the porous organic glass plate. The porous plexiglass plate (Figure 9) is fixed on the upper surface of the low flat photobioreactor by glass glue, and the interior of each small hole is a two-layer ladder structure to prevent the column photobioreactor from slipping into the flat photobioreactor.

The column-type photobioreactor/short-path flat-panel photobioreactor is the core structure of the utility model. When microalgae enter the area from the low-level flat-panel photobioreactor, they can receive more sufficient light and emit carbon dioxide. High-efficiency supplementation greatly increases the growth rate of algae cells. For the production of light-induced bioactive substances (such as astaxanthin, etc.), its promoting effect is more obvious. Column photobioreactors can be made of plexiglass tubes, ordinary glass tubes and flexible plastic tubes. Short-path flat-panel photobioreactors can be made of ordinary glass and plexiglass.

The elevated plate photobioreactor is composed of a transparent container, an elevated bottom tank, a porous plexiglass plate (or other transparent plates with openings), a ventilation line and an external circulation pipe interface, wherein: the transparent container is made of several specific specifications of transparent The flat plate is bonded by an adhesive, and the algae liquid is fully mixed after entering the transparent container from the "column photobioreactor/short light path flat photobioreactor"; the ventilation line is used for the enriched compressed air Blowing in, the high-pressure gas generates a strong air lift force during the rapid rise of the bubbles, driving the culture medium to move upwards to realize the circulation of the algae liquid; the porous plexiglass plate is used to fix the column photobioreactor; the high bottom tank is mainly used Reinforcement at the bottom of the photobioreactor, but it is different from the low-level bottom tank structure of the low-level flat photobioreactor. The high-level bottom tank has a number of uniformly arranged round holes through which the algal liquid can enter the transparent container. The external circulation pipe interface is located on the side of the high-level flat plate photobioreactor, and is used for the connection of the external circulation pipe.

The external circulation pipe is a pipe connecting the high-level flat photobioreactor and the low-level photobioreactor. After the algae liquid enters the high-level flat photobioreactor through air lift, it can be circulated from the outside under the action of gravity. The pipeline returns to the low-level photobioreactor to realize the circulation of the algae liquid. The introduction of the circulation structure accelerates the circulation between the upper layer of algae liquid and the lower layer of algae liquid in the reactor, which is beneficial to the accumulation of algae cell biomass.

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1, it is a kind of preferred embodiment of the coupling type photobioreactor of the present invention, wherein 1 represents the low flat photobioreactor, 2 is the column photobioreactor, 3 is the high flat photobioreactor, 4 is an external circulation pipe, 5 is a metal support frame, 11 is a transparent plate, 12 is a bottom groove, 13 is a special-shaped flange, 14 is a porous organic glass plate, 31 is a connection port of an external circulation pipe, and 32 is a ventilation pipe interface. The structure and function of the components have been described in detail in the foregoing utility model principles, and will not be repeated here.

The circulation direction of the algae liquid in the system is shown by the arrow in Figure 2. The algae liquid in the low-level flat photobioreactor 1 enters the column photobioreactor 2 along the direction of the arrow under the action of the air lift force. The photobioreactor 2 has a smaller illuminated area and light path, and the algae cells can receive more sufficient light, where the rapid accumulation of biomass is carried out, and the algae liquid then enters the high-level flat plate photobioreactor 3 for full mixing. When the algae liquid When the height exceeds the height of the interface of the external circulation pipe, the algae liquid enters the external circulation pipe 4, and then returns to the low-level flat plate photobioreactor 1 under the action of gravity to complete the circulation of the algae liquid. The algae liquid can be cooled and supplemented with carbon dioxide in the low-level flat-plate photobioreactor 1 .

Referring to Fig. 3 A and Fig. 3 B, it is respectively the structural representation of column type photobioreactor and short light path flat plate photobioreactor, on the basis of following the utility model design principle, above-mentioned two types (short light path flat plate type and Column) photobioreactors can achieve high-density cultivation of high value-added microalgae.

The three-dimensional structure of the lower bottom tank 12 is shown in Figure 4. The bottom tank must be made of a metal material with certain rigidity and not easy to rust, or made of a plastic mold. A special-shaped flange is installed at the left and right ends of the bottom tank. Figures 5A, 5B and 5C are the front view, top view and left view of the bottom tank respectively. and seal it with glass glue to prevent water seepage.

Referring to Fig. 6, it is a flange cover of a special-shaped flange, on which there are multiple through interfaces, the interface facing the inside of the reactor is a threaded interface, and the external interface is a smooth interface. The threaded interface facilitates the removal of the pipeline. Wherein 61 is the ventilation pipeline interface, 62 and 63 are the water inlet and the water outlet of the condensation pipe respectively, 64 is the connection port of the external circulation pipe, and 65 is the ventilation pipeline interface.

Embodiment 1, the formation of coupled photobioreactor type one

In order to better illustrate the design idea of the utility model, the assembly process of the coupling photobioreactor type 1 is described in detail as follows:

(1) Use welding, cutting, bending and other metal processing methods, or plastic technology to make the bottom tank of the reactor (as shown in Figure 4);

(2) Use glass glue to glue the front and rear main body glass plates to the designated position;

(3) The porous plexiglass plate (as shown in Figure 9) is bonded to the upper surface of the low-position flat photobioreactor;

(4) Fix the metal inner support frame (as shown in Figure 8B) at the position shown in Figure 1;

(5) Install the elevated bottom tank (as shown in Figure 8A) and the perforated plexiglass plate in order;

(6) Use glass glue to install the column photobioreactor at the designated location;

(7) Make a high-position flat photobioreactor;

(8) Install various ventilation, condensation and circulation pipelines.

Embodiment 2, the formation of coupling type photobioreactor type two

On the basis of following the design principle of the utility model, the column photobioreactor can be replaced by a flat photobioreactor with a short optical path (the specific structure is shown in Figure 7), and the assembly of the coupling photobioreactor type two is now The process is detailed as follows:

(1) Use welding, cutting, bending and other metal processing methods, or plastic technology to make the bottom tank of the reactor;

(2) Fix the inner support frame (as shown in Figure 8B) on the metal lower bottom groove. The inner support frame is mainly used to support the short-path flat photobioreactor. Use glass glue to glue the front and rear main glass plates to the designated position ;

(3) Bond the plexiglass plate with the long slot in the middle to the upper surface of the low-position flat photobioreactor, and seal it with glass glue to prevent the culture solution from seeping out;

(4) Install the short light path flat plate photobioreactor to the designated position in Figure 7;

(5) Fix the metal inner support frame at the position shown in Figure 7; bond the high-level bottom groove (as shown in Figure 8A) with a slot in the middle to the upper surface of the short-path flat photobioreactor;

(6) Make a high-level flat-panel photobioreactor;

(7) Install various ventilation, condensation and circulation pipelines.

Embodiment 3, the serial amplification of coupled photobioreactor

In order to pursue a larger cultivation scale, the utility model provides a series model of the coupled reactor unit (as shown in Fig. 10 and Fig. 11 ). An interface is added to the special-shaped flange cover of each reactor unit for the series connection of the lower part of the reactor, and an expansion port is also opened on the side of the high-level flat photobioreactor for the series connection of adjacent reactor units.

As mentioned above, the low-cost and high-density culture technology of high value-added microalgae is the key to restricting its industrialization. At present, scientific research institutions and enterprises generally use raceway pools and closed photobioreactors (flat plate, pipeline, vertical column and Hanging bag type, etc.) to cultivate high value-added microalgae, the production efficiency is generally low, and the above-mentioned culture system has many disadvantages: (1) The photobioreactor in the raceway pond has low output, serious light attenuation, difficult temperature control, and the utilization of CO2 The efficiency is low, the circulation is poor, and the types of microalgae cultivated are limited (chlorella, salina, spirulina, etc.), and they are easily contaminated by other organisms during the cultivation process, which affects the quality of the product; (2) traditional closed photobiology The construction cost of the reactor is relatively high, and there are also many disadvantages, such as the oxygen desorption problem of the pipeline photobioreactor, the series connection problem of the vertical column photobioreactor, the selection of the light-transmitting film of the hanging bag photobioreactor, and the flat panel photobioreactor. The problem of contradiction between optical path increase and light attenuation of type photobioreactor.

However, the utility model proposes a design scheme of a new type coupled photobioreactor. By combining the respective advantages of the flat photobioreactor and the vertical tubular photobioreactor, the low-cost and high-density microalgae with high added value are realized. Cultivation, which includes but not limited to the following technical effects: (1) effective temperature control of the photobioreactor; (2) scale-up of the photobioreactor; (3) solving the circulation of the algae liquid by using the air lift method; (4) Coupling the short light path photobioreactor (tube type, flat plate type) with the flat plate reactor increases the effective illumination area of the reactor and improves the light utilization efficiency of the algae cells. Thus, the low-cost and high-density cultivation of high value-added microalgae is better realized.

The above are only preferred implementations of the present utility model. It should be pointed out that the above-mentioned preferred implementations should not be regarded as limitations on the present utility model, and the protection scope of the present utility model should be based on the scope defined by the claims. For those skilled in the art, without departing from the spirit and scope of the utility model, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims (10)

1. manifold type bioreactor; It is characterized in that; Comprise the dull and stereotyped photo bio of low level, high-order dull and stereotyped bioreactor, meta bioreactor and outer circulating tube, wherein: the inboard of dull and stereotyped photo bio of said low level and the dull and stereotyped bioreactor of a said high position is communicated with through said meta bioreactor; The outside of dull and stereotyped photo bio of said low level and the dull and stereotyped bioreactor of a said high position is communicated with through said outer circulation pipeline; The dull and stereotyped bioreactor of a said high position is provided with vent line, and said vent line connects high-pressure air source.

2. manifold type bioreactor as claimed in claim 1; It is characterized in that; The dull and stereotyped bioreactor of said low level comprises forward and backward main body transparent panel, low level kerve, left and right special-shaped flange and low level top transparent plate; Wherein: said forward and backward main body transparent panel embeds in the draw-in groove of said low level kerve, and seals with sealer; Said left and right special-shaped flange is arranged at the and arranged on left and right sides of said low level kerve, offers the pipe joint of a plurality of perforations on the blind flange of said left and right special-shaped flange respectively; Said low level top transparent plate be bonded in the dull and stereotyped bioreactor of low level on show and with the sealer sealing, and offer algae liquid mouth on the said low level top transparent plate, in order to be communicated with said meta bioreactor.

3. manifold type bioreactor as claimed in claim 2 is characterized in that, the inboard of said pipe joint is a hickey, and the outside is smooth interface.

4. manifold type bioreactor as claimed in claim 2; It is characterized in that; The dull and stereotyped bioreactor of said low level is provided with two groups of vent lines, and wherein one group is positioned at the dull and stereotyped bioreactor of low level bottom, and another group is near the lower surface of said low level top transparent plate.

5. manifold type bioreactor as claimed in claim 2 is characterized in that, the set inside of the dull and stereotyped bioreactor of said low level has serpentine condenser, and the water-in of said serpentine condenser and water outlet are arranged on the same blind flange.

6. manifold type bioreactor as claimed in claim 2; It is characterized in that; The dull and stereotyped bioreactor of a said high position comprises transparent vessel, high-order kerve and high-order bottom transparent panel; Wherein: said transparent vessel is bonded by some transparent plates, and the side of said transparent vessel is provided with the outer circulating tube interface; Said high-order kerve supports said transparent vessel, and said high-order bottom transparent panel is bonded on the said high-order kerve, and all offers on said high-order kerve and the said high-order bottom transparent panel and offer algae liquid mouth, in order to be communicated with said meta bioreactor.

7. manifold type bioreactor as claimed in claim 6 is characterized in that, said meta bioreactor is the pillar bioreactor, and wherein said low level top transparent plate, high-order kerve and high-order bottom transparent panel all offer a plurality of circular holes.

8. manifold type bioreactor as claimed in claim 7 is characterized in that, said low level top transparent plate is the porous poly (methyl methacrylate) plate, and wherein each aperture inside is two-layer hierarchic structure.

9. manifold type bioreactor as claimed in claim 6 is characterized in that, said meta bioreactor is the dull and stereotyped bioreactor of short optical path, and square groove is offered in the centre of wherein said low level top transparent plate, high-order kerve and high-order bottom transparent panel.

10. manifold type bioreactor as claimed in claim 6 is characterized in that, comprises metal supporting frames, and its bottom surface is welded on the said low level kerve, and upper surface is welded on the said high-order kerve.

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