CN103436437B - Culture pond for culturing micro-algae - Google Patents
Culture pond for culturing micro-algae Download PDFInfo
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- CN103436437B CN103436437B CN201310420982.5A CN201310420982A CN103436437B CN 103436437 B CN103436437 B CN 103436437B CN 201310420982 A CN201310420982 A CN 201310420982A CN 103436437 B CN103436437 B CN 103436437B
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Abstract
The invention provides a culture pond for culturing micro-algae. The culture pond comprises a pond bottom (1), a side wall (2) fixed on the pond bottom (1), a clapboard (6) which extends along the side wall (2) in a spacing mode, and a stirring paddle (7) which is positioned between the side wall (2) and the clapboard (6), wherein the outer end (3) of the side wall (2) is connected to the outer surface of the side wall (2) adjacent to the outer end (3), and the side wall (2) extends by helically coiling along the longitudinal length direction thereof. The invention aims to provide the culture pond which is used for culturing the micro-algae and has less flow dead zones during culture.
Description
Technical field
The present invention relates to a kind of culturing pool, relate to a kind of culturing pool for microdisk electrode particularly.
Background technology
Raceway pond is the most ancient microalgae culture system, and proposed the sixties in 20th century by Oswakl, use till today, agent structure has almost no change always, and the domestic and international research work carried out it is very few in decades.Raceway pond is generally ring structure, and medium depth is generally 15-30cm, has two or more cyclic water channels, is stirred by web wheel to promote that nutrient solution mixes.The large scale culturing of current micro-algae mainly adopts this kind of open type system of raceway pond.But the simple structure of raceway pond can cause, and liquid level is higher, light path is long; Algae liquid flow distance is long, and lower floor's algae flow velocity is slow, can not with upper strata algae liquid hybrid switching, be difficult to receive sunlight, the micro-algae of lower floor is easily adherent, impact growth; Turning, raceway pond two ends resistance is complicated, and current easily form a large amount of dead band.Finally cause light utilising efficiency low, algae cultivation density is low, yields poorly.
Such as, the Chinese utility model patent of CN201420077Y discloses a kind of ring-shaped circulation microalgae liquefaction reaction pond.The division plate forming ring-type bypass channel groove is provided with in annular container cell, annular container cell and division plate are that glass that transmittance is high is made or made for the alumina based material being coated with tapetum lucidum, are provided with the drive unit that can impel liquid-flow in it in annular container cell.In prior art, is provided with multiple arc in the middle of reaction tank and cuts off, algae liquid flow direction constantly changes, and steering angle is 180 degree, and turning point be plane is not cambered surface, so algae liquid resistance to flow is strong, power loss is many, and dead zone area is large.
Summary of the invention
For Problems existing in correlation technique, the object of the present invention is to provide a kind of for microdisk electrode and the culturing pool that in breeding process, flow dead is less.
For achieving the above object, the invention provides a kind of culturing pool for microdisk electrode, comprising: at the bottom of pond; Be fixed on the sidewall at the bottom of pond; Along the dividing plate that sidewall extends with it at intervals; The outer end of sidewall is connected to the outside surface of the sidewall adjacent with outer end; And the stirring rake between sidewall and dividing plate; Sidewall extends along its longitudinal length direction spiral wound.
According to the present invention, outer end is tightly connected by the outside surface of arc-shaped transition linkage section and sidewall, and the inner of sidewall is free end.
According to the present invention, the height at the bottom of the pond between the sidewall and dividing plate of spiral wound periodically successively decreases from high to low gradually along the bearing of trend of sidewall.
According to the present invention, maximum at the height of the exit side of each stirring rake at the bottom of pond, minimum at the height of the feeding side of each stirring rake.
According to the present invention, stirring rake is driven by drive-motor, and drive-motor is arranged at side-wall outer side.
According to the present invention, stirring rake is at least arranged on: between the outer end of sidewall and the outer end of dividing plate and the inner of dividing plate and sidewall and between the internal surface that the inner is alternate.
According to the present invention, the internal surface of culturing pool is all equipped with anti seepage membrane.
According to the present invention, anti seepage membrane is made up of TPO water-proof material or PVC waterproof material.
According to the present invention, at the bottom of pond, sidewall and dividing plate be the integral piece of Unitarily molded formation; Or at the bottom of pond, sidewall and dividing plate be the separation member being fixed to one another connection.
According to the present invention, in the region that the linkage section that outer end is connected with sidewall surrounds, be provided with aerating apparatus.
Advantageous Effects of the present invention is:
(1) in the present invention, the sidewall of culturing pool coils in a spiral form.Compared with prior art, on the one hand, the comparatively slow problem easily producing dead band of flow velocity in straight way is avoided owing to there is not straight way; On the other hand, only there is turn-around zone in central position and end position in the present invention, avoids the dead band, many places of causing due to 180 ° of ovdersteerings, and install stirring rake herein additional, can produce pushing effect, avoid the generation in dead band.In addition, the sidewall of culturing pool coils in a spiral form and makes any position of culturing pool be arcuate structure, and algae liquid and pool wall constantly collide mutually, can continue to keep turbulence state.Because this culturing pool effectively to avoid the generation in dead band by aforesaid method, add turbulent flow DL degree, thus avoid deposition and pollution that algae occurs, promote that lower floor's algae liquid receives sunlight, improve cultivation density and algae output.
(2) according to geometry law " figure of same circumference, the area of a circle is maximum ", known when area is certain, close to circle, the girth of figure is less.Therefore will carry the algae liquid of same volume, culturing pool of the present invention is shorter than pool wall length needed for rectilinear traditional raceway pond, and the anti seepage membrane requirement for the material and place mat of building pool wall is less, thus reduces manufacturing cost.
(3) because the bearing of trend of the height at the bottom of pond along sidewall changes periodically from high to low, and utilize stirring rake to be promoted to by the algae liquid of lower to exceed, effectively can accelerate the velocity of flow of algae liquid, prevent lower floor's algae liquid from crossing slow due to velocity of flow and producing near-wall air curtain, the algae liquid in also even further whole culturing pool, improving can cultivation density and algae output.
Accompanying drawing explanation
Fig. 1 is the structural representation of a culturing pool of the present invention embodiment;
Fig. 2 is the structural representation of another embodiment of culturing pool of the present invention.
Embodiment
With reference to Fig. 1, the culturing pool for microdisk electrode of the present invention comprises: at the bottom of pond 1, the sidewall 2 be fixed at the bottom of pond on 1, along sidewall 2 and and sidewall 2 dividing plate 6, the stirring rake 7 between sidewall 2 and dividing plate 6 that extend at intervals.Wherein, the outer end 3 of sidewall 2 is connected to the outside surface of the sidewall 2 adjacent with outer end 3, and sidewall 2 extends along its longitudinal length direction spiral wound.
Specifically, culturing pool is by the bottom of pond 1 and to be fixed at the bottom of pond on 1, spiral sidewall 2 and to surround.Along the bearing of trend of sidewall 2, sidewall 2 compartment of terrain is provided with dividing plate 6, namely dividing plate 6 is also volution.Preferably, along the vertical wraparound direction of sidewall 2, dividing plate 6 is equal to the distance of the pool wall of the two sections of sidewalls 2 be adjacent.Namely dividing plate 6 and sidewall 2 form double helical, wide Chi Dao.The outer end 3 of sidewall 2 is connected to the outside surface of the sidewall 2 adjacent with outer end 3, and then forms the culturing pool closed.Wherein at the bottom of pond 1, sidewall 2 and dividing plate 6 are the integral piece of Unitarily molded formation and are all equipped with at the internal surface (at the bottom of pond 1, the surface that contacts with algae liquid with dividing plate 6 of sidewall 2) of culturing pool the anti seepage membrane be made up of TPO water-proof material or PVC waterproof material.Certainly, at the bottom of pond 1, sidewall 2 and dividing plate 6 also can for being fixed to one another the separation member of connection.To should be appreciated that at the bottom of the material of anti seepage membrane and pond 1, the structure of sidewall 2, dividing plate 6 all can determine according to concrete service condition, the present invention is not limited thereto.
Preferably, outer end 3 is tightly connected by the outside surface of arc-shaped transition linkage section 5 with sidewall 2, and the inner 4 of sidewall 2 is free end.That is, outer end 3 and sidewall 2 outside surface by arc-shaped transition be connected 5 connect time, this connecting zone can be made to be arc-shaped transition, to prevent from forming dead band in this transitional region.Thus, as shown in Figure 1, dividing plate 6 and sidewall 2 are formed centrally a turn-around zone (algae liquid need experience two 180 ° turn to when flowing) herein in culturing pool, and the position connecting adjacent sidewall 2 in outer end 3 forms another turn-around zone (algae liquid need experience two 180 ° turn to when flowing) herein.This structure makes algae liquid flow through the Chi Dao be made up of dividing plate 6 and sidewall 2 circulate through two turn-around zone in culturing pool.In addition, preferably, aerating apparatus is provided with in the region that the linkage section be connected with sidewall 2 in outer end 3 surrounds, that is, in the Chi Dao part that the camber line of arc-shaped transition linkage section 5 and the line at its two ends surround.
Stirring rake 7 is driven by drive-motor 9, and drive-motor 9 is arranged at outside sidewall 2.And stirring rake 7 is at least arranged on: between the outer end 3 of sidewall 2 and the outer end of dividing plate 6 and the inner 10 of dividing plate 6 and sidewall 2 with inner 10 alternate internal surfaces between, namely two above-mentioned turn-around zone places, to drive algae liquid by turning to excessive turn-around zone to reach circulation.Wherein, have the turn-around zone of two 180 °, along algae liquid flow direction, stirring rake 7 is arranged on first 180 ° of turning point.In the present embodiment, drive three stirring rakes 7 to provide algae liquid impellent by a motor 9, stirring rake 7 is positioned over as shown in Figure 1 respectively, the innermost circle of volution culturing pool, centre and outmost turns.
Structure thus, in culturing pool of the present invention, compared with prior art, on the one hand, avoids the comparatively slow problem easily producing dead band of flow velocity in straight way owing to there is not straight way; On the other hand, only there is turn-around zone in central position and end position in the present invention, avoids the dead band, many places of causing due to 180 ° of ovdersteerings, and install stirring rake herein additional, can produce pushing effect, avoid the generation in dead band.In addition, the sidewall of culturing pool coils in a spiral form and makes any position of culturing pool be arcuate structure, and algae liquid and pool wall constantly collide mutually, can continue to keep turbulence state.Because this culturing pool effectively to avoid the generation in dead band by aforesaid method, add turbulent flow DL degree, thus avoid deposition and pollution that algae occurs, promote that lower floor's algae liquid receives sunlight, improve cultivation density and algae output.
In the present embodiment, at the bottom of the pond between the sidewall 2 and dividing plate 6 of spiral wound, the height of 1 successively decreases from high to low gradually along the bearing of trend periodicity of sidewall 2, and at the bottom of pond, 1 is maximum at the height of the exit side of each stirring rake 7, minimum at the height of the feeding side of each stirring rake 7.That is, owing to 1 being in periodic undulations at the bottom of pond, algae liquid flows from high to low, until flow to stirring rake 7.That is, stirring rake 7 is by the rotation of its blade, algae liquid is risen to the eminence at the exit side place of stirring rake 7 by the lower at the feeding side place of stirring rake 7.Then, between adjacent two stirring rakes 7, algae liquid is flowed to the lower at the feeding side place of next stirring rake 7 again by the eminence at the exit side place of a stirring rake 7, circulate thus.Because the bearing of trend of the height at the bottom of pond along sidewall changes periodically from high to low, and can utilize stirring rake 7 that the algae liquid of lower is promoted to eminence, effectively can accelerate the velocity of flow of algae liquid, prevent lower floor's algae liquid from crossing slow due to velocity of flow and producing near-wall air curtain, the algae liquid in also even further whole culturing pool, improving can cultivation density and algae output.
In addition, with reference to Fig. 1 for example, the semicircle of the innermost circle of spiral sidewall 2 to be radiuses be 250cm, revolve the semicircle that turnback connects a radius 500cm, by that analogy, often revolving turnback radius increases 250cm, and maximum radius is 1250cm; In like manner, spiral dividing plate 6 maximum radius is 1000cm.The radius of arc-shaped transition linkage section 5 is 250cm.Namely as shown in Figure 1, can be formed, from culturing pool center to a radial direction, there are 5 Tiao Chi roads.Optionally, sidewall 2 and the thick 24cm of dividing plate 6, high 50cm.
As shown in Figure 1, arrow is that algae liquid flows to.Algae liquid is from arc-shaped transition linkage section 5 Chu Chi road, drive by stirring rake 7, along outmost turns counterclockwise flow, flowing one circle (that is, algae pendular ring is around 360 °) drives by second stirring rake 7 afterwards, continues counterclockwise flow, again drive by stirring rake 7 to culturing pool center, thus by turn-around zone (comprising two 180 ° herein to turn to), start clockwise flow, until arrive arc-shaped transition linkage section 5 to complete a circulation.Further, by the driving of stirring rake 7 being positioned at arc-shaped transition linkage section 5 Chu Chi road, by the turn-around zone of 180 °, next circulation is entered.
Culturing pool in the above embodiment of the present invention and traditional raceway pond are contrasted by experiment:
Wherein, during the two contrast, starting condition is consistent, and inoculum density is 0.3g/L, and the cultivation degree of depth is 25cm, and power of motor is 1.5kW, cultivates 14 days.
(1) measure culturing pool and traditional raceway pond each point flow velocity, there is the dead band of flow velocity lower than 0.1m/s at the bend place of stirring rake far-end and part straight way in traditional raceway pond, and culturing pool of the present invention does not exist dead band substantially.
(2) culturing pool compares traditional raceway pond, and average daily production improves 25%, as shown in the table:
(3) when identical cultured area, volution raceway pond compares traditional raceway pond, and floor space reduces 3%, and the material usage building pool wall saves 22.53%, and the anti seepage membrane consumption of laying saves 9.97%, as shown in the table:
Can be embodied by experiment, culturing pool of the present invention does not have dead band substantially, and the output of algae is apparently higher than traditional raceway pond, and building materials needed for culturing pool of the present invention is less, low cost of manufacture.
With reference to Fig. 2, what illustrate is an alternative embodiment of the invention.In this embodiment, only be with the difference of first embodiment of the present invention shown in Fig. 1: compartment of terrain is provided with 5 stirring rakes 7, namely, as shown in Figure 2, along the direction from sensing center, outer end 3, stirring rake 7 is equally spaced set, wherein, be spaced apart a Ge Chi road, and along the Chi Daozhong that the sidewall 2 that first stirring rake in this direction is positioned at outer end 3 place is formed with adjacent dividing plate 6.In the embodiment shown in fig. 1, stirring rake 7 is only arranged on algae liquid with the Chi Daozhong of counterclockwise flow.And in the embodiment shown in Figure 2, also stirring rake 7 is provided with in the road, pond of algae liquid with clockwise flow, thus velocity of flow and the turbulent flow DL degree of algae liquid in this Duan Chi road can be accelerated further, avoid because this Duan Chi road is long that algae liquid velocity of flow that is that cause slows down, DL degree declines.Thus, cultivation density and algae output is further increased.
Certainly, the quantity of stirring rake 7 and position are not limited to two specific embodiments.Stirring rake 7 can be set according to the change etc. of height at the bottom of the length of the spiral number of turns of culturing pool, Chi Dao and pond.That is, in the position of the turbulent flow DL degree and velocity of flow that need to increase algae liquid, the position with excessive angle of turning or the position etc. that is easy to produce dead band arrange stirring rake 7, play to make stirring rake 7 and increase the velocity of flow of algae liquid and the effect of DL degree.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1., for a culturing pool for microdisk electrode, comprising:
(1) at the bottom of pond; Be fixed on the sidewall (2) on (1) at the bottom of described pond; Along the dividing plate (6) that described sidewall (2) extends with it at intervals; The outer end (3) of described sidewall (2) is connected to the outside surface of the described sidewall (2) adjacent with described outer end (3); And the stirring rake (7) be positioned between described sidewall (2) and described dividing plate (6); It is characterized in that, described sidewall (2) extends along its longitudinal length direction spiral wound,
Described stirring rake (7) is at least arranged on: between the internal surface of the described sidewall (2) that between the outer end (3) of described sidewall (2) and the outer end of described dividing plate (6) and the inner (10) of described dividing plate (6) is alternate with the inner (10) of described dividing plate (6)
Described outer end (3) is tightly connected by the outside surface of arc-shaped transition linkage section (5) with described sidewall (2), and the inner (4) of described sidewall (2) is free end,
The height being positioned at (1) at the bottom of the described pond between the sidewall (2) of described spiral wound and described dividing plate (6) successively decreases from high to low gradually along the bearing of trend periodicity of described sidewall (2),
(1) at the bottom of described pond is maximum at the height of the exit side of each described stirring rake (7), minimum at the height of the feeding side of each described stirring rake (7).
2. culturing pool according to claim 1, is characterized in that, described stirring rake (7) is driven by drive-motor (9), and described drive-motor (9) is arranged at described sidewall (2) outside.
3. culturing pool according to claim 1, is characterized in that, the internal surface of described culturing pool is all equipped with anti seepage membrane.
4. culturing pool according to claim 3, is characterized in that, described anti seepage membrane is made up of TPO water-proof material or PVC waterproof material.
5. culturing pool according to claim 1, is characterized in that, the integral piece that at the bottom of described pond, (1), described sidewall (2) and described dividing plate (6) are Unitarily molded formation; Or (1), described sidewall (2) and described dividing plate (6) are for being fixed to one another the separation member of connection at the bottom of described pond.
6. culturing pool according to claim 1, is characterized in that, is provided with aerating apparatus in the region that the linkage section that described outer end (3) are connected with described sidewall (2) surrounds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310420982.5A CN103436437B (en) | 2013-09-16 | 2013-09-16 | Culture pond for culturing micro-algae |
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| CN201310420982.5A CN103436437B (en) | 2013-09-16 | 2013-09-16 | Culture pond for culturing micro-algae |
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| CN103436437B true CN103436437B (en) | 2015-04-15 |
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| CN104974924B (en) * | 2015-07-08 | 2017-11-21 | 新奥科技发展有限公司 | A kind of purposes of guiding device, method of river diversion and guiding device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420077Y (en) * | 2009-04-14 | 2010-03-10 | 张炳泉 | Ring-shaped circulation microalgae liquefying reaction tank |
| CN201648113U (en) * | 2009-12-30 | 2010-11-24 | 张东旭 | Double-helix encircling-type sewage treatment oxidation ditch |
| CN101948740A (en) * | 2010-09-10 | 2011-01-19 | 中国科学院过程工程研究所 | Small-fall open pond for massively cultivating microalgae as well as use method and application thereof |
| CN203007256U (en) * | 2012-11-28 | 2013-06-19 | 新奥科技发展有限公司 | Microalgae large-scale cultivation raceway pond photobioreactor |
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- 2013-09-16 CN CN201310420982.5A patent/CN103436437B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201420077Y (en) * | 2009-04-14 | 2010-03-10 | 张炳泉 | Ring-shaped circulation microalgae liquefying reaction tank |
| CN201648113U (en) * | 2009-12-30 | 2010-11-24 | 张东旭 | Double-helix encircling-type sewage treatment oxidation ditch |
| CN101948740A (en) * | 2010-09-10 | 2011-01-19 | 中国科学院过程工程研究所 | Small-fall open pond for massively cultivating microalgae as well as use method and application thereof |
| CN203007256U (en) * | 2012-11-28 | 2013-06-19 | 新奥科技发展有限公司 | Microalgae large-scale cultivation raceway pond photobioreactor |
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