CN202246642U - Coupling type photobiological reactor system - Google Patents
Coupling type photobiological reactor system Download PDFInfo
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- CN202246642U CN202246642U CN 201120319637 CN201120319637U CN202246642U CN 202246642 U CN202246642 U CN 202246642U CN 201120319637 CN201120319637 CN 201120319637 CN 201120319637 U CN201120319637 U CN 201120319637U CN 202246642 U CN202246642 U CN 202246642U
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Abstract
The utility model discloses a coupling type photobiological reactor system, which comprises an inclined channel, a panel type photobiological reactor and a liquid flow air lift system, the low position end of the inclined channel is located above the panel type photobiological reactor, and the liquid flow air lift system comprises an air blowing device, a high position tank an a circulation pipeline. A liquid inlet of the high position tank is connected with a liquid outlet of the panel type photobiological reactor and a liquid outlet of the high position tank located above the high position end of the inclined channel through the circulation pipeline, and an air outlet of the air blowing device is communicated with the circulation pipeline. The coupling type photobiological reactor system utilizes double functions of air lift force and gravity to perform algae liquid circulation and fully considers the characteristics of growth of microalgae for producing oil and grease accumulation, thereby being capable of achieving low-cost and high-tensity culture of the microalgae for producing the oil.
Description
Technical field
The utility model relates to bioreactor, particularly a kind of manifold type photo-bioreactor system of realizing that the produce oil micro-algae large-scale is cultivated.
Background technology
Along with the exhaustion day by day of global fossil energy and running down of environmental problem, seek a kind of focus that renewable, environmentally friendly energy form becomes various countries scientist concern that continues.In numerous renewable energy source (in wind energy, Geothermal energy, water ability, sun power, the sea energy); Biofuel has high similarity with it at aspects such as energy density, incendivity and petrifaction diesel; And have and be prone to degraded, not sulfur-bearing and aromatic compounds, characteristic such as environmentally friendly, receive the extensive concern of countries in the world.
Biofuel is meant the longer chain fatty acid alkyl monoester that animal and plant or microbial oil obtain after esterification.Since 1988; Many American-European countries have begun the substitute of biofuel as petrifaction diesel is used; But because the higher prices of raw and semifnished materials, make the price of biofuel far above traditional petrifaction diesel, this becomes the main bottleneck of restriction biofuel industrialized development.The main raw material of production biofuel at present, is cash crop such as soybean, rape, sunflower seeds.This is the production of biodiesel mode on basis with the traditional agriculture, not only yields poorly, and ploughs with the food crop contention, therefore can not satisfy the demand of biofuel industry to the raw material sustainable growth.
Little algae be one type with the energy-producing lower plant of photoautotrophy, be nature origin the earliest, the widest, the kind of distributing and the maximum biomass resource of quantity.Many under certain condition little algaes can accumulate storage property triacylglycerol (little algae oil) in a large number in cell, its high-content can reach more than 50% of dried cell weight.Compare with high Lu Sheng oil crops, little algae has the photosynthetic efficiency height, growth velocity is fast, growth cycle is short, unit frustule fat content high and advantage such as the area that do not occupy cultivated land.Thereby, consider that from the yield and quality of little algae oil it should be the important non-grain raw material that solves the global energy shortage.
Utilize little algae production biofuel to have many technical bottlenecks, wherein, the low-cost high-density culture technique of the little algae of produce oil is to realize the key of its industrialization.The research work at initial stage finds that the little algae of some high produce oil (Nannochloropsis sp.) is when laboratory culture, and living weight can reach 8.0gL
-1More than, but after it is carried out outdoor amplification culture, the not enough 1.0gL of its living weight
-1, the huge drop on this output has disclosed and has developed a kind of necessity that can be used for the bioreactor of the little algae high-density culture of produce oil.
Be used for bioreactor that little algae cultivates at present and mainly contain open type and closed two types.That the open type bioreactor has is simple in structure, amplify easily and low cost and other advantages, has been successfully applied to during the bait micro-algae mass-producing cultivates; Closed photo bioreactor has the pollution of being difficult for, culture condition is easy to control, high specific surface area, luminous energy and CO
2Utilization ratio is than advantages such as height, and still, the investment of closed photo bioreactor and running cost are high.In the domestic disclosed bioreactor utility model patent, what be used for the little algae cultivation of produce oil only has following three:
One of which, application number are " 200820058978.3 ", and name is called " a kind of production equipment of industrialization culturing microalgae " (Cai Zhiwu).The main body of this culture apparatus is runway pond formula structure (not possessing stirring rake); Its mode through air-blowing realizes the circulation of algae liquid; Open pond covers with plastics film fully, and this reactor drum combines open and closed photo bioreactor advantage separately, can realize that the produce oil micro-algae large-scale cultivates.
Its two, application number is " 201020129411.8 ", name is called " a kind of oil-rich microalgae culture apparatus " (Wu Qifei, Jiangsu University).This reactor drum has been used for reference the design concept of anaerobic fermentation tank, and it comprises cover, tank body, gas distributor, chuck, temperature control texture, PLC automatic control system, and illumination apparatus is installed in tank interior.The PLC automatic control system can be regulated and control (temperature, illumination and CO to the growth of little algae more exactly
2), shortened culture cycle greatly, accelerated the speed of growth of little algae, improved production efficiency, reduced production cost.
Its three, application number is " 200680039890.0 ", name is called " by algae production method of bio-diesel oil, equipment and system " (U.S. Solix Biofuels Inc.).Said culture systems comprises the have multilayer plastics bag of (comprising heat resistant layer), the temperature that it can be used for splendid attire algal culture thing or regulates the algal culture thing.This reactor drum has been stablized the temperature in the culture systems with low energy expenditure, is applicable to the cultivation of any algae (the little algae of produce oil, bait micro-algae etc.).
Do not consider the biological characteristics of produce oil micro algae growth and oil and fat accumulation during above-mentioned reactor design, the cultivation of the little algae of produce oil is different from the bait algae more, and it needs competent illumination and CO
2Just can impel greasy quick accumulation, so above-mentioned bioreactor is difficult to satisfy the needs of the little algae high-density culture of produce oil.
At present, scientific research institution generally adopts open bioreactor and flat bioreactor to cultivate the little algae of produce oil, and its production efficiency is generally lower.The most typical, the most frequently used open culture systems is the runway pond bioreactor by Oswald (1969) design; This culture systems is light source with the natural light, relies on the rotation of paddle wheel, makes nutrient solution in the pond, mix, circulate; Prevent the efficiency of light energy utilization of frond deposition and raising frond cell; It is big that runway pond bioreactor has volume of culture, the advantage that cost of investment is low, but the runway pond also exists that specific surface area is little, luminous energy and CO
2Many shortcomings of low, the easy pollution of utilization ratio, envrionment conditions (temperature, illumination, pH etc.) controllability difference etc. only have a few little algae (chlorella, salt algae, tenaculat Habenaria etc.) can adopt runway pond bioreactor to cultivate at present.The history of flat bioreactor can be traced back to nineteen fifty-three the earliest, and Burlew utilizes the rectangle transparent vessel of design voluntarily to cultivate chlorella, for the application of dull and stereotyped reactor drum is laid a good foundation.The flat board reactor drum is cultivated the little algae of produce oil and had plurality of advantages: specific surface area is big, light utilization efficiency is high, structure is succinct relatively, be prone to clean, can design as required different optical paths, also can change the reactor drum angle makes it low, the suitable outdoor cultivation of cumulative concentration towards irradiate light direction, oxygen; Light-path and the strong turbulence of air-flow that it is short; Be the favourable condition that realizes the little algae high-density culture of produce oil; But its volume of culture is little than runway pond bioreactor; Identical cultivation scale, its production cost is higher.
The sixties in last century, the Czech scientist
Designed a kind of slant thin-film bioreactor that little algae is cultivated that is used for, this reactor drum is made up of following structure: two are used for algae liquid mobile metal path, CO
2Replenish square metal groove, recycle pump, high-order tower and plastic conduit etc. with the cooling of algae liquid.In this reactor assembly, algae liquid is in recycle pump pump to high-order tower, and the algae liquid in the high-order tower gets into the metal path of inclination through the flow sparger, and algae liquid carries out CO herein at effect refluxed to the square metal groove of gravity
2Supply and cooling, the square metal groove is connected with recycle pump, accomplishes the circulation of algae liquid.When this device was used to cultivate chlorella, Biomass of Chlorella can reach 35.0gL
-1, but there are many problems equally in this reactor drum in design: (1) impeller pump can produce necessarily damage to some environment sensitive algae strains (strain of acellular wall algae), so can not be used for the cultivation of this type of algae strain; (2) researchist can't observe the loop condition of algae liquid through the square metal groove, and the algae in the square metal groove can't be accepted illumination simultaneously; (3) the square metal cell body is long-pending amplify after, have a strong impact on attractive in appearance and be unfavorable for the circulation of algae liquid; (4) author of native system does not provide and can be used for more designing a model of large scale culturing; (5) this system can't overcome the influence that weather is cultivated little algae; (6) vertical height of square metal groove is low, is unfavorable for CO
2Supply.
At present, enterprise generally adopts traditional bioreactor (open pond, flat, duct type, vertical pillar etc.) to cultivate the little algae of produce oil.Because the cultivation of the little algae of produce oil is different from the bait algae, it needs competent illumination and CO
2Just can impel greasy quick accumulation, and present bioreactor is not almost considered the biological characteristics of produce oil micro algae growth and oil and fat accumulation when design, so be difficult to satisfy the needs of the little algae high-density culture of produce oil.Particularly, there are many shortcomings technically in these bioreactors:
(1) utilize open pond bioreactor to cultivate the little algae of produce oil, have drawback: light is difficult to penetrate the liquid layer of 15-30cm, causes the frustule of nutrient solution lower floor can't accept competent illumination; Open in addition pond bioreactor is difficult to be realized accuracy control over temperature; Frustule is to CO
2Utilization ratio low; Can't continue during rainy season to cultivate; Algae liquid cycle efficiency is poor.
(2) said referring to preamble, utilize flat bioreactor to cultivate the little algae of produce oil, have following shortcoming equally: to compare its cultivation scale less relatively with open pond; Reduce the influence of optical attenuation through the mode that shortens optical path, can cause the minimizing of volume of culture; The reactors in series difficulty is big, and cost of investment is high, has limited its application.
(3) there is certain problem in the duct type bioreactor on the analytic technique of gas, and the cooling of reactor drum will take a large amount of cultivation costs during outdoor cultivation; The duct type bioreactor utilizes surge pump to realize circulating of algae liquid more, and little algae (Haematocoocus Pluvialls etc.) that some are comparatively responsive can't carry out normal growth; The pipeline reactor construction cost is higher, and its cultivation scale is also less relatively in addition, is not suitable for the needs of the low-cost high-density cultivation of the little algae of produce oil.
(4) there is certain difficulty in vertical pillar bioreactor on the series connection amplifying technique, can't satisfy need of industrial production; Through increasing the mode enlarged culturing volume of optical path, with the irradiation situation that has a strong impact on inside reactor algae liquid; And be difficult to automatic flushing device is applied to vertical pillar bioreactor; The circulation of algae liquid and temperature control are the problem that this type reactor drum need solve equally.
(5) present disclosed combined bioreactor, it is the same deficiency that exists in design, has limited its application in large-scale production.
The problems referred to above to existing bioreactor exists are necessary to propose a kind of plan that can be used for the new type light bio-reactor of the little algae high-density culture of produce oil.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of manifold type photo-bioreactor system, can realize the cultivation of produce oil micro-algae large-scale.
Be the purpose that realizes solving the problems of the technologies described above; The technical scheme that the utility model provides is: a kind of manifold type photo-bioreactor system; Comprise inclination path, flat bioreactor and flow gas lift system; The low order end in said inclination path is positioned at the top of said flat bioreactor; Said flow gas lift system comprises air-blowing device, header tank and circulating line, and the liquid outlet that the fluid inlet of said header tank connects the liquid outlet of said flat bioreactor, said header tank through said circulating line is positioned at the high order end top in said inclination path, and the air outlet of said air-blowing device is communicated with said circulating line.
More excellent ground, the high order end in said inclination path is provided with the flow sparger, and the liquid outlet of said header tank connects the fluid inlet of said flow sparger through connecting tube; The low order end in said inclination path is provided with shallow grooves.
More excellent ground, said flat bioreactor inserts said air-blowing device through vent line.
More excellent ground is provided with gas mixing system, comprises carbon dioxide steel cylinder, gas mixer and two gas meters, and wherein: an inlet mouth of said gas mixer connects into said carbon dioxide steel cylinder, and another inlet mouth connects into said air-blowing device; Said vent line is inserted in one air outlet of said gas mixer, and another air outlet is communicated with the increase in pipeline of said circulating line; One in said two gas meters is used for the control air flow, and another is used to control carbon dioxide flow.
More excellent ground comprises two interconnective high-order inclination paths and low level inclination path, and wherein: the high order end in said high-order inclination path is positioned at the below of a header tank; The low order end in said low level inclination path is positioned at the top of a flat bio-reactor.
More excellent ground constitutes the inclination path of a notch cuttype by a plurality of open ponds, and wherein: the open pond at top is positioned at the below of a header tank; The open pond of bottommost is positioned at the top of a flat bio-reactor.
More excellent ground comprises two high-order inclination paths and a low level inclination path, and wherein: the high order end in two high-order inclination paths is positioned at the below of a header tank simultaneously; Said low level inclination path is located between the two high-order inclination paths; And the high order end in said low level inclination path is positioned at the low order end below in two high-order inclination paths simultaneously, and the low order end in said low level inclination path is positioned at the top of a flat bio-reactor simultaneously.
More excellent ground comprises two groups of inclination paths, two header tanks, and wherein: two groups of inclination paths form " eight " font structure; The top, high order end joint portion in two groups of inclination paths is provided with two header tanks, and low order end below, two groups of inclination paths is provided with a flat bioreactor respectively.
More excellent ground comprises two groups of inclination paths and two groups of header tanks, and wherein: two groups of inclination paths form " eight " font structure; The below, low order end joint portion in two groups of inclination paths is provided with a flat bioreactor, and high order end top, two groups of inclination paths is provided with one group of header tank respectively.
More excellent ground, the top of said flat bioreactor is provided with expansion plate, and said expansion plate is flexible through electric machine control.
Compared with prior art; The utility model combines the advantage of open pond of thin layer formula and flat bioreactor; Utilize the dual function of gas lift power and gravity to carry out the circulation of algae liquid, and take into full account the characteristic of produce oil micro algae growth and oil and fat accumulation, realize the little algae low-cost high-density cultivation of produce oil.Particularly, utilize this culture systems mainly can obtain following beneficial technical effects: (1) solves open pond formula bioreactor temperature control difficulty and CO
2The low problem of utilization ratio; (2) utilize the dual function of gas lift power and gravity, solved the damage of problem and the cf-of the moving property difference of algae liquid recycle stream in the open pond frustule; (3) can realize the high-density culture of the little algae of environment sensitive; (4) overcome the influence that rainwater weather is cultivated little algae; (5) solved the serious problem of open pond formula bioreactor optical attenuation; (6) in addition, tank level control system and temperature controlling system can be set easily, realize automatic adjusting algae liquid liquid level and temperature.
Description of drawings
Fig. 1 is the utility model manifold type photo-bioreactor system synoptic diagram;
Fig. 2 is the structural representation of Fig. 1 middle plateform formula bioreactor;
Fig. 3 is the structural representation of flow gas lift system among Fig. 1;
Fig. 4 A is the synoptic diagram of flow sparger type one among Fig. 1;
Fig. 4 B is the synoptic diagram of flow sparger type two among Fig. 1;
Fig. 5 is the structural representation in Fig. 1 medium dip path, has in fact constituted a kind of open pond bioreactor;
Fig. 6 is the synoptic diagram of the utility model manifold type photo-bioreactor system embodiment one, representes the structure of a kind of thin layer list path manifold type bioreactor;
Fig. 7 is the synoptic diagram of the utility model manifold type photo-bioreactor system embodiment two, representes that a kind of is the structure of stepped appearance manifold type bioreactor;
Fig. 8 is the synoptic diagram of the utility model manifold type photo-bioreactor system embodiment three, representes that a kind of is the structure of two thin layer paths manifold type bioreactor;
Fig. 9 is the synoptic diagram of the utility model manifold type photo-bioreactor system embodiment four, representes the structure of a kind of many thin layers path manifold type bioreactor type one;
Figure 10 is the synoptic diagram of the utility model manifold type photo-bioreactor system embodiment five, representes the structure of a kind of many thin layers path manifold type bioreactor type two.
Embodiment
The core concept of the utility model is that the open pond of thin layer formula, flat bioreactor and flow gas lift system are coupled; Advantage in conjunction with two kinds of dissimilar bioreactors; Utilize the dual function of gas lift power and gravity to carry out the circulation of algae liquid; And take into full account the characteristic of produce oil micro algae growth and oil and fat accumulation, and make frustule in the open pond of thin layer formula, accept more luminous energy, in flat bioreactor, replenish CO
2And cooling, increase photosynthetic efficiency, realize the little algae low-cost high-density cultivation of produce oil.
For realizing the purpose of above-mentioned design, the utility model provides the preferred solution of following manifold type photo-bioreactor system, and it is in the nature a kind of manifold type photo-bioreactor system (hereinafter to be referred as culture systems).This culture systems specifically comprises: parts such as thin layer inclination path, flat bioreactor (hereinafter to be referred as dull and stereotyped reactor drum), high pressure blower or air, algae liquid circulating line (comprising vacuum breaker and stopping valve), flow gas lift system, flow sparger, tank level control system, temperature controlling system, gas mixing system, expansion plate below describe respectively structure, function and the principle of work of wherein major parts.
Thin layer inclination path is the agent structure of this culture systems, and the produce oil microalgae cell receives more luminous energy therein and various nutritive ingredient is carried out merisis, is the main place of micro algae biomass accumulation.Algae liquid circulates mode in thin layer inclination path following: algae liquid is got in the thin layer inclination path by header tank, and under the effect of gravity, slowly flows downward to the one-level one-level, and finally flows in the flat bioreactor.The algae liquid degree of depth in this thin layer inclination path is usually less than 1cm, and the angle of inclination of thin layer inclination path and horizontal plane is 1 °-3 °, and the length in thin layer inclination path is 5-100m, width 0.2-1.0m.Alternative inclination path makes up material has simple glass, toughened glass, borosilicate glass, cement, rigid plastics (acrylic, polycarbonate, Vilaterm, PVC etc.), agripast film (needing bracing frame), stainless steel plate, PVC leather (needing bracing frame), plastic-steel plate (needing bracing frame) etc.
Flat bioreactor is the transparent plate by some specific standard sizes; Through the bonding transparent vessel that forms sealing of tackiness agent; Its effect in this coupling cultivate system mainly contains: (1) dull and stereotyped reactor bottom is equipped with some vent lines; When algae liquid being mixed, can realize the supply of carbonic acid gas in the algae liquid through air-blowing; (2) be provided with many circulating cooling pipe roads in the dull and stereotyped reactor drum, realize control the algae liquid temp; (3) during rainy season, algae liquid all is collected in the dull and stereotyped reactor drum, source of artificial light capable of using continues to cultivate.Wherein flat bioreactor lower end is connected with header tank through circulating line, under the effect of gas lift power, can algae liquid be raised to header tank.The transparent material that is used to make flat bioreactor has simple glass (0.8-2.0cm), synthetic glass (acrylic, polycarbonate and Vilaterm), toughened glass and borosilicate glass etc.
High pressure blower or air are commercially available equipment, and itself and circulating line, header tank are formed " the flow upward system " of this coupling cultivate system.The high-pressure air that gas blower or air produce, after through gas mixer and carbonic acid gas mixed, be divided into two-way: the one tunnel gets in the flat bioreactor, is used for the stirring of dull and stereotyped reactor drum algae liquid and the supply of carbonic acid gas; In the increase in pipeline that another road gets into header tank is communicated with, this part air-flow produces powerful gas lift power, drives algae liquid and gets in the header tank.Wherein, some vacuum breakers and stopping valve are housed in the circulation line, prevent that algae liquid from flowing backwards.Algae liquid can fully mix with dioxide gas at circulation line, greatly improves the utilising efficiency of carbonic acid gas.The power of high pressure blower or air needs according to the scale of cultivation accurate calculation, to guarantee algae liquid flows capable of circulation.Header tank is the container of a cylindrical or quadrate open upper end, and its lower end is connected with flat bioreactor through pipeline; On the sidewall of header tank upper end pipeline is housed, this pipeline is connected with the flow sparger.Header tank can be used simple glass, synthetic glass, toughened glass and borosilicate glass, material such as PVC, and vent line then can select present popular PPR and pvc pipe material to make up.
The flow sparger is a hollow cartridge type or square tube type container, and it mainly acts on is to guarantee that algae liquid evenly flows to thin layer inclination path (open pond), and wherein the high order end in each group thin layer inclination path all is equipped with the flow sparger.Alternative flow sparger manufacturing materials has stainless pipe or square tube, synthetic glass, rigid plastics etc.
Tank level control system is optional, is made up of liquidometer, central controller, SV and water pipe etc.It is inner that liquidometer is installed in flat bioreactor, is used for detecting the evaporation situation of culture systems algae liquid, and when the liquid level of algae liquid in the dull and stereotyped photoreactor is lower than the setting liquid level, liquidometer will carry instruction signal to central controller; After central controller was judged this signal, sending controling instruction was to SV; Closing and opening, automatic the replenishing of realization culture systems vaporize water through the control SV.
Temperature controlling system is optional, is made up of temp probe, central controller, cooling-water machine, SV, cooling water pipeline etc.It is inner that temp probe is installed in flat bioreactor, is used to detect the temperature of culture systems, and when temp probe detects temperature in the culture systems and is higher than design temperature, it will send a command signal to central controller; After central controller was judged this signal, sending controling instruction was to SV; Starting and close of solenoid control cooling-water machine realized the culture systems temperature auto control.
Gas mixing system is made up of two gas meters and gas mixer, is mainly used in the mixed of air and carbonic acid gas, and one of them under meter is used for the control of air flow quantity, and another under meter is used for the control of carbon dioxide gas flow; Gas mixer is used for the mixing of two kinds of gases, and it can be made by stainless material.
Expansion plate is installed in flat bioreactor upper end, and it stretches through electric machine control.When arrived rainy season, the control expansion plate covered in flat bioreactor upper end, prevented that rainwater from getting into; When after rainy season, open expansion plate, realize the circulation of algae liquid.
In order to make those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 has described a whole set of technical process of the utility model, and wherein 1 is the inclination path, and 2 is high pressure blower or air, and 3 is carbon dioxide steel cylinder; 4 is gas mixer, and 5 is the three-phase valve, and 6 is the algae collection, and 7 is cooling-water machine; 8 is cooling line, and 9 is vent line, and 10 is dull and stereotyped reactor drum, and 11 is the flow sparger; 12 is vacuum breaker, and 13 is liquidometer, and 14 is header tank.Wherein major parts structure, function and principle no longer repeat at this at the existing detailed description of preamble.
In this culture systems; The flow direction of algae liquid is shown in arrow among Fig. 1: algae liquid is under the effect of gas lift power; Got in the header tank 14 by pipeline, the algae liquid in the header tank 14 gets in the thin layer inclination path 1 through gas distributor 11 after of short duration storage; And in the path, effect lower edge of gravity one-level one-level ground slowly flows downward, finally import in the dull and stereotyped reactor drum 10; Algae liquid in dull and stereotyped reactor drum 10, can carry out carbonic acid gas replenish and temperature controlling, algae liquid is got in the pipeline by the outlet of dull and stereotyped reactor drum 10 lower ends, at effect refluxed to the header tank 14 of gas lift power, accomplishes full cycle.After cultivating end, algae liquid can be collected by algae collection 6.
Dull and stereotyped reactor drum is as shown in Figure 2, and the interface 101 of its middle plateform reactor drum 10 is connected with cooling-water machine 7 through the pipeline water-cooled tube 8 that is connected with header tank 14.Dull and stereotyped reactor drum can preferably adopt the mode (applying for a patent separately) of external reinforcing or interior lacing wire to make up.The transparent material that wherein is used to make dull and stereotyped reactor drum has simple glass, synthetic glass (acrylic, polycarbonate and Vilaterm), toughened glass and borosilicate glass etc.
Fig. 3 is manifold type culture systems " a flow upward system ", and wherein pipe interface 21 is connected with high pressure blower 2, can realize blasting of pressurized gas.End interface 101 links to each other under pipe interface 102 and the flat bioreactor, culture systems is connected into the circulating system of a sealing.The high pressure gas that high pressure blower 2 produces blast increase in pipeline 22 by pipe interface 21, in the zooming process of bubble, produce powerful gas lift power, drive nutrient solution and move upward, and realize the circulation of algae liquid.
Fig. 4 A and Fig. 4 B are two types flow sparger 11, and wherein algae liquid is got into by the connecting pipeline on flow sparger 11 tops, and when the height of algae liquid surpasses the height of flow sparger " front apron ", algae liquid will gently flow in the inclination path 1.Because the effect of flow sparger 11 is to guarantee that the algae liquid uniform and stable in the inclination path 1 flows, so the high order end in each group path all is equipped with flow sparger 11 for this reason.
Fig. 5 is the structure in inclination path 1, and its high order end is equipped with flow sparger 11, is provided with shallow grooves at low order end, guarantees that algae liquid can all flow into the high order end in next stage path.Preferably, the algae liquid degree of depth in the inclination path 1 is usually less than 5cm, and the angle of inclination path and horizontal plane is 1-3 °, and the length in inclination path is 5-100m, and width is 0.2-1.0m.
On the basis of following the above-mentioned patent principle of design of the utility model, can make up multiple multi-form manifold type culturing system of light bioreactor, illustrate as follows at present:
Embodiment one, thin layer path manifold type bioreactor
Referring to Fig. 6; This model is the utility model manifestation the most intuitively, and it comprises the dull and stereotyped reactor drum 10 in two interconnective thin layer inclination paths 1 (high-order thin layer path and low level thin layer path), a group, high pressure blower 2, header tank 14, two groups of flow spargers 11, one group of tank level control system, one group of temperature controlling system, gas mixing system, expansion plate etc.Thin layer inclination path 1 is 1-3 ° with the angle of horizontal plane, and length is 5-100m, width 0.2-1.0m; Motorized lift device all is equipped with in 1 bottom, every thin layer path, can regulate the angle of thin layer inclination path 1 and horizontal plane through the control lifting device.It is less relatively that this model is cultivated scale, can be used for the research of aspect, laboratory applications basis.
Embodiment two, stepped appearance manifold type bioreactor
Referring to Fig. 7, this model is other a kind of visualize form of the utility model, and its open pond part is a hierarchic structure, constitutes the thin layer inclination path of another kind of form.Algae liquid slowly flows to lowest layer ladder by the superiors' ladder, and frustule can be accepted competent illumination and grow in process of flowing.Ladder quantity can be provided with according to the cultivation scale, and this model only needs one group of flow sparger 11 can realize the uniform distribution of algae liquid.When the cultivation of this system is larger, can consider to increase aforementioned " flow upward system ", thus to quicken the circulation of algae liquid.
Embodiment three, two thin layers path manifold type bioreactor
Referring to Fig. 8, this model is to be improved by " single path manifold type bioreactor " shown in Figure 6, and the cultivation scale of " thin layer path manifold type bioreactor " is less relatively, and after increasing a high-order path for it, its cultivation scale will double.Among Fig. 8, two thin layers path manifold type bioreactor has two high-order thin layer paths, a low level thin layer path, two header tanks etc., and it can realize the Rapid Cycle of algae liquid.
Embodiment four, many thin layers path manifold type bioreactor type one
The manifold type bioreactor of first three types, its cultivation scale are difficult to continue to enlarge, and to the problems referred to above, design a kind of designing a model of the produce oil outdoor mass-producing cultivation of little algae that can be used for.This model is made up of some inclinations path (similar solar panels), two groups of photo-bioreactor systems, two structures such as header tank, and its structural representation is as shown in Figure 9.Algae liquid is divided into two portions by the flow sparger; Two portions algae liquid gets into respectively in two flat bioreactors from different directions; Algae liquid carries out replenishing and temperature controlling of carbonic acid gas herein, and entering header tank under the effect of gas lift power is accomplished the circulation of algae liquid subsequently.Among this embodiment, the quantity in thin layer inclination path can be provided with according to the cultivation scale.And in order to accelerate algae liquid speed of circulation, the quantity of header tank 14 can increase equally.
Embodiment five, many thin layers path manifold type bioreactor type two
Referring to Figure 10, this model is similar with Fig. 9 " many thin layers path manifold type bioreactor type one ".Difference is; The vergence direction in path and " many thin layers path manifold type bioreactor type one " shown in Figure 9 are opposite; Algae liquid is to be pooled in the dull and stereotyped reactor drum in center by both sides, through in the extremely peripheral two groups of dull and stereotyped reactor drums of pipe-line transportation, under the effect of gas lift power, gets in peripheral two groups of header tanks subsequently then; Accomplish the circulation of algae liquid, this model can be used for the outdoor mass-producing of the little algae of produce oil equally and cultivates.
The culture effect of the foregoing description reactor assembly has obtained confirmation in the little algae bench scale of produce oil is cultivated.Generally adopt open pond and flat bioreactor to cultivate the little algae of produce oil with respect to present scientific research institution and enterprise; Production efficiency is generally lower; Be difficult to satisfy many shortcomings of industrialization needs, the culture systems of above embodiment includes but are not limited to following advantage: the low-cost high-density cultivation of the little algae of produce oil is realized in (1); (2) reduce the reactor drum construction cost; (3) realize the annual cultured continuously of the little algae of produce oil; (3) solve temperature control, the CO that traditional bioreactor can't overcome
2The problem of efficient supply and optical attenuation etc.
In sum, the utility model influences in analysis-by-synthesis on the basis of key factor of produce oil micro algae growth and oil and fat accumulation, and combines
Design a model, propose the open pond of thin layer formula formula bioreactor, flat bioreactor and flow gas lift system are coupled, utilize two kinds of reactor drums advantage separately, carry out through the dual function of gas lift power and gravity that algae liquid circulates, CO
2Efficient replenishing, realize that the little algae low-cost high-density of produce oil cultivates.
It below only is the preferred implementation of the utility model; Its key point is the advantage that combines open pond and flat bioreactor; Utilize the dual function of gas lift power and gravity, and take into full account the characteristic of produce oil micro algae growth and oil and fat accumulation, realize the little algae low-cost high-density cultivation of produce oil.Should be pointed out that above-mentioned preferred implementation should not be regarded as the restriction to the utility model, the protection domain of the utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in spirit that does not break away from the utility model and scope, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (10)
1. manifold type photo-bioreactor system; It is characterized in that; Comprise inclination path, flat bioreactor and flow gas lift system; The low order end in said inclination path is positioned at the top of said flat bioreactor; Said flow gas lift system comprises air-blowing device, header tank and circulating line, and the liquid outlet that the fluid inlet of said header tank connects the liquid outlet of said flat bioreactor, said header tank through said circulating line is positioned at the high order end top in said inclination path, and the air outlet of said air-blowing device is communicated with said circulating line.
2. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, the high order end in said inclination path is provided with the flow sparger, and the liquid outlet of said header tank connects the fluid inlet of said flow sparger through connecting tube; The low order end in said inclination path is provided with shallow grooves.
3. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, said flat bioreactor inserts said air-blowing device through vent line.
4. manifold type photo-bioreactor system as claimed in claim 1; It is characterized in that; Be provided with gas mixing system; Comprise carbon dioxide steel cylinder, gas mixer and two gas meters, wherein: an inlet mouth of said gas mixer connects into said carbon dioxide steel cylinder, and another inlet mouth connects into said air-blowing device; Said vent line is inserted in one air outlet of said gas mixer, and another air outlet is communicated with the increase in pipeline of said circulating line; One in said two gas meters is used for the control air flow, and another is used to control carbon dioxide flow.
5. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, comprises two interconnective high-order inclination paths and low level inclination path, and wherein: the high order end in said high-order inclination path is positioned at the below of a header tank; The low order end in said low level inclination path is positioned at the top of a flat bio-reactor.
6. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, constitutes the inclination path of a notch cuttype by a plurality of open ponds, and wherein: the open pond at top is positioned at the below of a header tank; The open pond of bottommost is positioned at the top of a flat bio-reactor.
7. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, comprises two high-order inclination paths and a low level inclination path, and wherein: the high order end in two high-order inclination paths is positioned at the below of a header tank simultaneously; Said low level inclination path is located between the two high-order inclination paths; And the high order end in said low level inclination path is positioned at the low order end below in two high-order inclination paths simultaneously, and the low order end in said low level inclination path is positioned at the top of a flat bio-reactor simultaneously.
8. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, comprises two groups of inclination paths, two header tanks, and wherein: two groups of inclination paths form " eight " font structure; The top, high order end joint portion in two groups of inclination paths is provided with two header tanks, and low order end below, two groups of inclination paths is provided with a flat bioreactor respectively.
9. manifold type photo-bioreactor system as claimed in claim 1 is characterized in that, comprises two groups of inclination paths and two groups of header tanks, and wherein: two groups of inclination paths form " eight " font structure; The below, low order end joint portion in two groups of inclination paths is provided with a flat bioreactor, and high order end top, two groups of inclination paths is provided with one group of header tank respectively.
10. like each described manifold type photo-bioreactor system of claim 1～9, it is characterized in that the top of said flat bioreactor is provided with expansion plate, said expansion plate is flexible through electric machine control.
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| CN 201120319637 CN202246642U (en) | 2011-08-29 | 2011-08-29 | Coupling type photobiological reactor system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224875A (en) * | 2013-04-28 | 2013-07-31 | 钟琦 | Microorganism culture apparatus |
| CN103361259A (en) * | 2013-07-30 | 2013-10-23 | 新奥科技发展有限公司 | Thin-layer breeding multiple production system |
| CN103396936A (en) * | 2013-07-30 | 2013-11-20 | 新奥科技发展有限公司 | Light biological cultivation unit and cultivation system |
| CN105219629A (en) * | 2015-10-23 | 2016-01-06 | 厦门大学 | The solid tower culture apparatus of carbon of a kind of spirulina water saving and cultural method thereof |
| CN105779271A (en) * | 2016-05-19 | 2016-07-20 | 孙旭阳 | Stepped drop type microalgae photoreactor |
| CN111423983A (en) * | 2020-04-08 | 2020-07-17 | 中国科学院力学研究所 | Continuous expansion culture ware of expansible base cell |
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2011
- 2011-08-29 CN CN 201120319637 patent/CN202246642U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224875A (en) * | 2013-04-28 | 2013-07-31 | 钟琦 | Microorganism culture apparatus |
| WO2014176852A1 (en) * | 2013-04-28 | 2014-11-06 | Zhong Qi | Microorganism culture device |
| CN103361259A (en) * | 2013-07-30 | 2013-10-23 | 新奥科技发展有限公司 | Thin-layer breeding multiple production system |
| CN103396936A (en) * | 2013-07-30 | 2013-11-20 | 新奥科技发展有限公司 | Light biological cultivation unit and cultivation system |
| CN105219629A (en) * | 2015-10-23 | 2016-01-06 | 厦门大学 | The solid tower culture apparatus of carbon of a kind of spirulina water saving and cultural method thereof |
| CN105779271A (en) * | 2016-05-19 | 2016-07-20 | 孙旭阳 | Stepped drop type microalgae photoreactor |
| CN111423983A (en) * | 2020-04-08 | 2020-07-17 | 中国科学院力学研究所 | Continuous expansion culture ware of expansible base cell |
| CN111423983B (en) * | 2020-04-08 | 2022-03-15 | 中国科学院力学研究所 | Continuous expansion culture ware of expansible base cell |
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