CN203474813U - Photobiological cultivation unit and system - Google Patents
Photobiological cultivation unit and system Download PDFInfo
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- CN203474813U CN203474813U CN201320461422.XU CN201320461422U CN203474813U CN 203474813 U CN203474813 U CN 203474813U CN 201320461422 U CN201320461422 U CN 201320461422U CN 203474813 U CN203474813 U CN 203474813U
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Abstract
The utility model relates to a photobiological cultivation unit and a photobiological cultivation system. The cultivation unit comprises a cultivation device and a circulating system, wherein the cultivation device comprises a cultivation surface and a corresponding supporting structure; the cultivation device is in closed ring connection with the circulating system; the depth of a liquid layer on the cultivation surface is less than 10cm. The photobiological cultivation system is composed of the plurality of cultivation units by serial connection, parallel connection and parallel and serial connection. The cultivation unit adopts one cultivation surface, and the cultivation surface can be flat and can be bent, can be arranged horizontally and can be arranged obliquely (the general orientation is basically the same), so that the problem that the cultivation surfaces in units and the cultivation surface between the adjacent units shield the light mutually is avoided; a flexible surface is selected and the surface tension is adjustable; the requirements on the supporting strength and the installation precision are low and a mixing accelerating structure is additionally arranged so as to be good for mixing algae liquid flowing on the mixing accelerating structure. The photobiological cultivation unit and system are simple in structure, low in cost and high in CO2 utilization rate, and can deal with adverse weathers; the temperature can be controlled properly.
Description
Technical field
The utility model relates to a kind of photo bio cultivation unit and cultivating system.Specifically, the utility model proposes a kind of simple in structure, with low cost, CO
2utilization ratio is high, can tackle adverse weather, suitably photo bio cultivation unit and the cultivating system of temperature control.
Background technology
Photosynthetic microorganism/vegetable cell can utilize the inorganics of the forms such as sun power, water and simple mineral substance synthesis of organic substance and hydrogen, oxygen, methane.Micro-algae is a class individual small photosynthetic autotrophs/type of supporting of holding concurrently, unicellular/simple multicellular organism, has the features such as widely distributed, of a great variety, photosynthetic efficiency is high, fast growth, strong adaptability.
Mass-producing, high yielding culture are the bottlenecks of the micro-algae industrialized development of restriction, and the exploitation of low-cost, efficient cultivating system is the key that micro-algae large-scale is produced.Present stage cubic light bio-reactor still ubiquity cost high, be difficult for the problems such as amplification, current numerous enterprises still continues to continue to use traditional " raceway pond " and carries out micro-algae large-scale cultivation.Tradition raceway pond mostly is oval or circular shallow pond, in pond, to be generally 15～30cm dark for algae liquid, by cylinder shape stirring rake, algae liquid is continued to stir (Borowitzka, 1999), thereby realize circulating of whole pond algae liquid, so that frustule and each nutrition distribution homogeneous in algae liquid, and increase frustule and see light rate.But the cultured output of application raceway pond is always not ideal enough.Its major cause is: on the one hand, in pond, the algae liquid degree of depth is large, and sunlight decay to zero after taking in several centimetres of liquid levels, and only skin layer frustule visible ray, carries out photosynthesis; On the other hand, algae hydraulic hybrid type power only depends on stirring rake to provide, and makes the mixedness of algae liquid in the vertical direction poor, and cells of superficial layer is shown in that light is superfluous, growth is suppressed, and bottom cell is shown in that light is not enough, growth is restricted.In addition, the cultivation final concentration of application raceway pond is undesirable (only about 0.5g/L, US5981271) also, causes the last handling process treatment capacities such as collection, dehydration large, and then has increased the cost of final algae product.
The minimum unit of the discloseder cultivating systems of prior art forms by least two cultivation faces, and it is also inessential; And when outdoor utility due to minimum unit in two cultivation face tilt opposite directions, can cause the cultivation face in minimum unit and between adjacent cells to be mutually in the light.
Existing cultivating system is made cultivation face mainly with mechanically resistant material greatly, and not only the weight of mechanically resistant material self can have higher requirements to the intensity of supporting structure, and also higher to the manufacture of supporting structure and setting accuracy requirement, and engineering cost and difficulty are higher.The problems such as in addition, existing cultivating system also exists that very flexible (utilization rate of carbon dioxide is low, cannot tackle adverse weather ensureing product quality, without temperature control measure), space availability ratio are low, algae liquid vertical direction undermixing, energy derive are single.
Utility model content
It is large that first the purpose of this utility model is to solve the liquid layer degree of depth existing in prior art, and vertical direction mixes poor problem, proposes a kind of photo bio cultivation unit.
The purpose of this utility model is also to solve in prior art cultivation face in unit and between adjacent cells and is mutually in the light, mechanically resistant material self requires high to the intensity of supporting structure and manufacture, setting accuracy, the problem that the engineering cost in non-flat forms physical features and difficulty are high.Also comprise in addition CO
2the technical problems such as gas supply mode efficiency is low, and to (or to a little less than algae product quality controllability) a little less than the resistivity of the hazard weathers such as dust storm, without temperature control facility, space availability ratio is low, urgees mixed weak effect, and energy derive is single.
The utility model has also proposed a kind of photo bio cultivating system by cultivation cell formation.
For reaching this object, the utility model by the following technical solutions:
A photo bio cultivation unit, described cultivation unit comprises cultivation apparatus and the recycle system, and described cultivation apparatus comprises cultivation face and corresponding supporting structure, and described cultivation apparatus is closed loop with the recycle system and is connected; The liquid layer degree of depth on described cultivation face is less than 10cm.
Following as the preferred technical scheme of the utility model, but the restriction of the technical scheme not providing as the utility model by the following technical programs, can better reach and realize technical purpose of the present utility model and beneficial effect.
Preferably, on the basis of the technical scheme providing at the utility model, the liquid layer degree of depth on described cultivation face is less than 5cm, is preferably less than 3cm, is further preferably less than 2cm, is more preferably less than 1cm, most preferably 4～8mm.
Preferably, on the basis of the technical scheme providing at the utility model, described cultivation unit includes a cultivation face.
Preferably, on the basis of the technical scheme providing at the utility model, described cultivation face is flexible face; Described flexible face is covered in the upper surface of supporting structure, is fixedly connected with supporting structure, forms cultivation apparatus.
Preferably, on the basis of the technical scheme providing at the utility model, described cultivation face middle part is yield zone; In each edge of described cultivation face, at least parallel with algae liquid flow direction two edges, higher than yield zone, form overflow weir; The angle of described overflow weir and yield zone is preferably 90 degree.
Preferably, on the basis of the technical scheme providing at the utility model, described cultivation face is level or tool certain slope is placed; The described gradient is preferably less than 10 degree, is further preferably less than 5 degree, is most preferably less than 2 degree.
Preferably, on the basis of the technical scheme providing at the utility model, above cultivation face surface or its, add short mixed structure.
Preferably, on the basis of the technical scheme providing at the utility model, the top of described cultivation face is provided with transparent material layer; In described cultivation face outside, establish transparent anti-infrared film.
Preferably, on the basis of the technical scheme providing at the utility model, in each edge of described supporting structure, at least parallel with algae liquid flow direction two edges are higher than other parts in supporting structure;
Described supporting structure is skeleton shape structure, and it makes whole model by single-material, or is made by multimode, single/multiple material splicing assembling; In described supporting structure, add slope conditioning and tension-adjusting gear.
Preferably, on the basis of the technical scheme providing at the utility model, the described recycle system comprises pipeline, lifting gear, surge tank and liquid distributor; The end of described pipeline algae liquid flow direction from cultivation face extends to the origin or beginning of algae liquid flow direction; Described liquid distributor is connected with pipeline end, is positioned at the origin or beginning of algae liquid flow direction; Described lifting gear is pump; Described surge tank is provided with temperature regulating device; On described pipeline, collection device is set.
Preferably, on the basis of the technical scheme providing at the utility model, described lifting gear is impeller pump, submersible pump or gas-liquid mixing pump, and described surge tank is connected in series with pipeline; Described lifting gear is gas-liquid mixing pump, and described surge tank and pipeline also connect.
The utility model also provides a kind of photo bio cultivating system by above-mentioned cultivation cell formation, and described photo bio cultivating system is comprised of series, parallel and series-parallel connection a plurality of described cultivation unit.
The cultivation face tilt direction that respectively cultivates unit in described cultivating system is consistent, and algae liquid flows in each cultivation face cocycle, or is collected after flowing on a plurality of cultivation faces.
Compare with prior art scheme, the utlity model has following beneficial effect:
The technical scheme that the utility model provides has overcome that the liquid layer degree of depth in traditional cultivating system is large, vertical direction mixes the top layer frustule that the defect such as poor causes and sees that light is superfluous, bottom frustule is shown in the deficiencies such as light is not enough, cultivation final concentration is low, effectively improved each frustule in unit volume algae liquid and seen light probability, light utilising efficiency is high.Meanwhile, this cultivation modular construction is simple, be easy to construction, can be built on the ground, half on the ground, underground, can utilize natural land, mountain region, hills etc. as supporting structure, according to physical features construction cultivation unit, there is larger application potential and cost degradation space.
In addition, in the preferred technical scheme that the utility model provides: described cultivation unit consists of a cultivation face, cultivation face can put down, can be bent, can be arbitrary shape, can placed horizontally also tiltable settle (general orientation is basically identical), avoided the problem that in cultivation unit, cultivation face is in the light mutually; Flexible face is being guaranteed under the prerequisite of prior art function, for space has been opened up in the selection of lower cost materials; The relative non-flexible material of sole mass is generally lighter simultaneously, thereby has reduced the requirement of strength to supporting.And flexible face requires relatively lower to the processing of supporting structure and setting accuracy, if along on liquid flow direction, supporting beam height and the design height of different positions are slightly different, can flexible face not laid and is construed as limiting, and algae liquid above will present " waterfall stream " in flexible face (real is cultivation face), be more conducive to mix.Also can above cultivation face surface or its, add short mixed structure, be beneficial to algae liquid mixing diametrically in thin layer, further improve light utilising efficiency.
Utilize gas-liquid mixing pump to realize that liquid is carried and gas-liquid is fully mixed simultaneously, improve mixing efficiency, and can surge tank is standby as bypass, simplified system.In microalga cultivation process, carbon source can CO
2dissolved air water form fills into, CO in dissolved air water
2under normal temperature, normal pressure, with micro-bubble form, separate out with algae liquid and fully contact, thereby improve CO
2utilising efficiency.
On cultivation face, transparent material layer can be set, can effectively avoid the impact of adverse weather on micro algae growth, and then improve algae product quality; Can adopt transparent anti-infrared film, when ensureing algae product quality, increase the controllability to system temperature, be beneficial in megathermal climate region and cultivate.
In supporting structure, add slope conditioning and tension-adjusting gear, can realize the adjusting of the cultivation face gradient and surperficial Zhang Du; Temperature regulating device is set on surge tank in the recycle system, realizes the concentrated temperature control of algae liquid; On pipeline, collection device can be set, realize algae harvest product; In addition, nutritive substance (gaseous state, liquid state, solid-state) can fill into by feeding-system optional position from the recycle system and cultivation face.
Cultivating system can form agricultural greenhouse basic structure, and both culturing microalgae is combined with hothouse plants cultivation, can realize Poly-generation, thereby improve land utilization ratio and economic benefit; System running kinetic energy can be provided by systems such as windmill, waterwheels, to utilize regional nature of living in/renewable/discarded energy, reduces Nonrenewable energy resources consumption.
The cultivating system of cultivation cell formation described in the utility model, has avoided the problem that between adjacent cells, cultivation face blocks mutually, has the above-mentioned various advantages that cultivation unit itself has, and can be applicable to the large-scale cultivation of photo bio (micro-algae).
Accompanying drawing explanation
Fig. 1 is the photo bio cultivation modular construction schematic diagram that is provided with a kind of recycle system in the utility model;
Fig. 2 is the photo bio cultivation modular construction schematic diagram that is provided with the another kind of recycle system in the utility model;
Fig. 3 (a) is that cultivation described in the utility model unit supports and is built on the ground with frame shape;
Fig. 3 (b) is to take soil and be built on the ground as supporting in cultivation described in the utility model unit;
Fig. 3 (c) is to take soil and be built in half on the ground as supporting in cultivation described in the utility model unit;
Fig. 3 (d) be cultivation described in the utility model unit take soil as support be built in underground;
Fig. 3 (e) is cultivation described in the utility model unit physical features and building near the mountain;
Fig. 3 (f) is that cultivation described in the utility model unit is built according to hills physical features;
Fig. 4 is photo bio cultivation modular construction schematic diagram described in the utility model embodiment 1;
Fig. 5 (a) is a kind of arrangement form of photo bio cultivation cell transparent infrared film described in the utility model embodiment 2;
Fig. 5 (b) is the another kind of arrangement form of photo bio cultivation cell transparent infrared film described in the utility model embodiment 2;
Fig. 6 is photo bio cultivation modular construction schematic diagram described in the utility model embodiment 3.
Fig. 7 be the utility model by described cultivation units in series, collect endways the cultivating system structural representation of algae liquid;
Fig. 8 be the utility model by described cultivation unit series-parallel connection, the cultivating system structural representation of cyclic culture.
In figure: 1-cultivates face; 2-supporting structure; 3-pipeline; 4-lifting gear; 5-surge tank; 6-overflow weir; 7-liquid distributor; 8-collection device.
Below the utility model is further described.But following example is only simple and easy example of the present utility model, do not represent or limit rights protection scope of the present utility model, protection domain of the present utility model is as the criterion with claims.
Embodiment
For the utility model is described better, be convenient to understand the technical solution of the utility model, typical but non-limiting embodiment of the present utility model is as follows:
A photo bio cultivation unit, described cultivation unit comprises cultivation apparatus and the recycle system, and described cultivation apparatus comprises cultivation face 1 and corresponding supporting structure 2, and described cultivation apparatus is closed loop with the recycle system and is connected; The liquid layer degree of depth on described cultivation face 1 is less than 10cm.
In the utility model, described cultivation unit mainly consists of cultivation face 1 and recycle system two portions.Described cultivation unit includes a cultivation face 1.Nutritive substance fills into whole cultivation system by the recycle system or cultivation face.
The liquid layer degree of depth on described cultivation face 1 is less than 5cm, is preferably less than 3cm, is further preferably less than 2cm, is more preferably less than 1cm, most preferably 4～8mm.
Described cultivation face 1 is flexible face; Described flexible face is covered in the upper surface of supporting structure 2, is fixedly connected with supporting structure 2, forms cultivation apparatus.Cultivation face 1 can put down, can be bent, can be arbitrary shape (as stepped, wavy, circular, arbitrary polygon etc., be not limited to this), its smooth surface or be provided with the short structure of mixing of characteristic.Cultivation face 1 can placed horizontally also tiltable settle (general orientation is basically identical), preferred angled is settled.
Described cultivation face 1 middle part is yield zone, for algae liquid, flows; In cultivation face 1 each edge, at least parallel with algae liquid flow direction two edges, higher than yield zone, form overflow weir 6, to maintain the thickness of algae liquid in flexible face, and can prevent that flow rate control from not going out along the mobile algae hydrorrhea of flexible face at that time.The height of the shape of cultivation face 1, overflow weir 6, overflow weir 6 are determined by supporting structure 2 with the angle of yield zone.Preferably, overflow weir 6 is 90 degree with the angle of yield zone.
Cultivation face 1 is level or tool certain slope is placed.Its gradient is less than 10 degree, is preferably less than 5 degree, is further preferably less than 2 degree.
Described flexible face material is avirulent material, the material of preferred seawater corrosion resistance, preferred film or cloth shape impervious material, further preferred canopy film, building film, geomembrane, tarpaulin, tarpaulin or oilcloth; Described canopy film is selected from PVC, PE, EVA, PEP or its composite membrane.Typical but non-limiting example comprises: PVC, and PEP, building film, tarpaulin, the composite membrane of EVA and PE, tarpaulin, oilcloth, the composite membrane of PVC and PEP, geomembranes etc., all can be used for implementing the utility model.
In each edge of described supporting structure 2, at least parallel with algae liquid flow direction two edges are higher than other parts in supporting structure 2, and it is approximate matrix along algae liquid flow direction vertical section.Described supporting structure 2 can be made whole model by single-material, or is made by multimode, single/multiple material splicing assembling.
Described supporting structure 2 constituent materials can be natural materials or synthetic materials; Described natural materials is selected from metal, soil, brick, stone, wood or bamboo etc.; Described synthetic materials is selected from plastics, concrete or plastic-steel etc.The typical but non-limiting example of described supporting structure 2 materials comprises: metal, and brick, stone, plastics, concrete, bamboo, plastic-steel, soil etc., all can be used for implementing the utility model.
In described supporting structure 2, add slope conditioning and tension-adjusting gear.The described flexible face gradient can realize adjusting by slope conditioning, and a surface degree can be realized adjusting by tension-adjusting gear.
Described cultivating system can be built in ground, also can for supporting, be built in ground, half ground, underground in soil, also can build according to physical features on (as soil, mountain region, hills), but be not limited to this.
In the utility model, the recycle system comprises pipeline 3, lifting gear 4, surge tank 5 and liquid distributor 7, and is closed loop with cultivation apparatus and is connected.The end of pipeline 3 algae liquid flow direction from cultivation face 1 extends to the origin or beginning of algae liquid flow direction; Liquid distributor 7 is connected with pipeline 3 ends, is positioned at the origin or beginning of algae liquid flow direction.Lifting gear 4 is preferably pump; On surge tank 5, be preferably provided with temperature regulating device; Collection device is preferably set on pipeline 3.
(1) as shown in Figure 1,, when lifting gear 4 is impeller pump, submersible pump or gas-liquid mixing pump, surge tank 5 is connected in series with pipeline 3.
Contain CO
2the gas of component or contain CO
2the dissolved air water of component maybe can promote the nutritive medium of micro algae growth to pass in surge tank 5, preferably along surge tank 5 bottoms, contacts after by micropore sparger with algae liquid in surge tank 5 again, and what form like this contains CO
2the even microbubble of component can contact more fully with algae liquid, is beneficial to CO
2or nutritive substance fully mixes with algae liquid.
(2) as shown in Figure 2,, when lifting gear 4 is gas-liquid mixing pump, surge tank 5 is with pipeline 3 and connect (bypass is connected).
Generally, by-pass valve cuts out, and contains CO
2the gas of component fully mixes with algae liquid in gas-liquid mixing pump, so that micro algae growth desired nutritional material to be provided.When night or adverse weather, bypass can be opened, make algae liquid deposit surge tank 5 in, according to breeding technique demand, can in surge tank 5, pass into gas and (preferably contain CO
2the gas of component).
Described surge tank 5 can be used as algae liquid and gas (contains CO
2the place of component) mixing or the interim storage place of algae liquid, select the kind of pump according to this.According to processing requirement, during as storage place, sometimes also can blast containing CO
2the gas of component.
Described nutritive substance (gaseous state, liquid state, solid-state) fills into mode except above-mentioned, also can on other positions of the recycle system (as pipeline 3) or cultivation face 1, add by feeding-system.
The described recycle system is delivered to cultivation face 1 the other end by the algae liquid of the cultivation face of flowing to 1 one end, makes algae liquid be lamelliform, flows equably along cultivation face 1, so moves in circles.
On described pipeline 3, collection device can be set, the cell cultivating for collecting this cultivating system.
The material of the preferred seawater corrosion resistance of described pipeline 3 material, is preferably plastics or lining is moulded metal.The preferred PVC of described plastics; But if institute's culturing cell is fresh water strain, the corrosion resistant of material is required relatively to reduce.
The utility model can add short mixed structure above cultivation face 1 surface or its, thereby makes algae liquid along in flexible face flow process, forms turbulent flow in thin layer, is beneficial to algae liquid mixing diametrically in thin layer, further to improve light utilising efficiency." short mixed structure " described in the utility model mean cultivation face surface or above the structure that can promote that algae liquid mixes is set.Other structures that can strengthen algae liquid mixing in thin layer that those skilled in the art can obtain all can be used for the utility model.
The top of cultivation face 1 described in the utility model is provided with transparent material layer.When fine, algae liquid cultivates on transparent material layer; As dusty wind weather, algae liquid cultivates on bottom flexible face.
The utility model is established transparent anti-infrared film in described cultivation face 1 outside, can effectively intercept the infrared rays that causes intensification, makes can be used for photosynthetic visible ray and enters and be radiated on cultivation face 1, is beneficial in megathermal climate region and cultivates.
The utility model can be combined described cultivation unit with agricultural greenhouse; The face that wherein cultivates is made by flexible, transparent material, and supporting structure 2 consists of brick wall and metal framework structure, simple in structure, be easy to construction, is beneficial to reduction Civil Engineering Cost.Meanwhile, cultivation cell formation agricultural greenhouse basic structure, in greenhouse, (cultivation face 1 time) can utilize the sunlight of transmission to carry out flowers and farm crop cultivation.
The running kinetic energy of cultivation described in the utility model unit can provide by systems such as windmill or waterwheels, to utilize regional nature of living in/renewable/discarded energy, reduces Nonrenewable energy resources consumption.
As shown in Figure 7, Figure 8, a kind of photo bio cultivating system by described cultivation cell formation is comprised of modes such as series, parallel and series-parallel connections a plurality of described cultivation unit.The cultivation face tilt direction that respectively cultivates unit in described cultivating system is consistent, and algae liquid flows in each cultivation face cocycle, or by collection device 8, is collected after flowing on a plurality of cultivation faces.
Embodiment 1
As shown in Figure 4, in the present embodiment, cultivation face be take skeleton construction as support.Cultivation face inclination is 2%, is rectangle, grows 35 meters, wide 15 meters, upper strata cultivation face by the transparent canopy film of PVC make, lower floor's cultivation face made by PE canopy film, levels cultivation face, at a distance of 0.1 meter, is isolated from the outside with transparent plastics film phonograph seal ，Shi lower floor cultivation face between two cultivation face edges.Algae liquid is with 4.5 * 10
-2m
3/ s(is 50cm/s) flow moving along cultivation surface current, liquid layer thickness is about 6mm.In surge tank, the body of ventilating is CO
2with the gas mixture of air, wherein CO
2concentration is 5%, and the micro-pore aeration system that is 0.2mm via aperture passes into mixed gas in mixed gas tank.When fine, algae liquid cultivates on top layer cultivation face; As dusty wind weather, algae liquid cultivates on bottom culture face, when algae liquid concentration (take chlorella as example) reaches 30g/L left and right, collects in algae liquid and after 1/3 frustule, continues to cultivate.In breeding process, initially to cultivate volume and nutrient solution consists of basis, regularly add the nutritive elements such as water and N, P.
In addition, this unit cultivates face at the middle and upper levels can be designed to free-standing pattern, and now algae liquid cultivates all the time on lower floor's cultivation face, when weather is suitable, upper strata cultivation face can be removed, and when weather is good enough, while having sand and dust, again upper strata cultivation face is not covered and is moved into.
The present embodiment can solve solution and the CO that the thin layer cultivating system existing in prior art lacks reply adverse weather
2the mode that passes into of gas is unfavorable for CO
2distribution and the diffusion of gas in algae liquid, the cultivation face problem such as be mutually in the light in same unit and between adjacent cells.In this embodiment, adopt " two cultivation face " system, top layer cultivation face consists of transparent material, and when fine, algae liquid cultivates on top layer cultivation face; As dusty wind weather, algae liquid cultivates on bottom culture face, to successfully manage adverse weather.In addition, adopt CO
2passing into mouth is connected or CO with water pump liquid outlet
2pass into mouthful and the mode such as water pump fluid inlet is connected indirectly, avoid water pump to affect CO
2distribution and the diffusion of gas in algae liquid.
As shown in Fig. 5 (a) and Fig. 5 (b), in the present embodiment, cultivation face be take soil as support.Cultivation face is made by PE film, is rectangle, long 60 meters, wide 30 meters, inclination is 1.7%.Cultivation face outer (as 1.5 meters of eminences) is established transparent anti-infrared film, in Inner Mongol Area during Summer, can make algae liquid temp be no more than 35 ℃.Algae liquid is with 1.2 * 10
-1m
3/ s(is 50cm/s) flow moving along cultivation surface current, liquid layer thickness is about 8mm.All the other and embodiment 1 are together.
The present embodiment can solve the thin layer cultivating system that exists in prior art and lack in the solution of reply " high temperature " and same unit and between adjacent cells the problems such as cultivation face is in the light mutually.In this embodiment, in cultivation face outside, add transparent anti-infrared film, effectively intercept the infrared rays that causes temperature rise, make can be used for photosynthetic visible ray and enter and be radiated on cultivation face, be beneficial in megathermal climate region and carry out both culturing microalgae.CO
2pass into mode and embodiment 1 together.
As shown in Figure 6, in the present embodiment, it is support that cultivation face be take cob wall and skeleton construction.Cultivation face inclination is 2.5%, is rectangle, grows 100 meters, wide 50 meters, by thickening canopy film, is made.Cultivation face is high-end take brick wall as supporting, to take the timber inserting in soil be support to low side.The upholders such as timber are set to maintain cultivation face overall flat and slightly oblique to a square neck in cultivation face edge and middle part (position that has framework).Algae liquid is with 0.2m
3/ s(is 40cm/s) flow moving along cultivation surface current, liquid layer thickness is about 10mm.In mixed gas tank, institute's body of ventilate is the power-plant flue gas after purification, wherein CO
2concentration is 8%.Cultivation face edge can be connected with ground with materials such as canopy films, forms greenhouse, can plant flowers and farm crop within it on the ground of portion, and particularly skiophilous plant growing way is especially good.
In addition, in this cultivation unit, adopt gas-liquid mixing pump as the gentle liquid mixing system of transmission power, surge tank is connected in the recycle system as bypass.During normal cultivation, by-pass valve cuts out; When night or weather are unsuitable, open by-pass valve, algae liquid flows into surge tank.Surge tank can be located in the greenhouse under cultivation face, thereby realize algae liquid, concentrates temperature control function.
The present embodiment can solve solution and the CO that the thin layer cultivating system existing in prior art lacks reply " cost degradation "
2the mode that passes into of gas is unfavorable for CO
2the cultivation face problem such as be mutually in the light in the distribution of gas in algae liquid and diffusion, same unit and between adjacent cells.In this embodiment, cultivating system is combined with agricultural greenhouse, wherein cultivating face can be made by transparent material (as canopy film), supporting structure is comprised of structures such as brick wall, cob wall and frameworks, can omit the costs of labor and simple in structure such as trench digging grooving, is beneficial to reduction engineering cost.Meanwhile, cultivating system forms agricultural greenhouse basic structure, and in greenhouse, (under cultivation face) can utilize the sunlight of top layer surrounding transmission to carry out flowers and farm crop cultivation.
Applicant's statement, the utility model illustrates detailed structure feature of the present utility model by above-described embodiment, but the utility model is not limited to above-mentioned detailed structure feature, do not mean that the utility model must rely on above-mentioned detailed structure feature and could implement.Person of ordinary skill in the field should understand; to any improvement of the present utility model; to the selection of the increase of the equivalence replacement of the selected parts of the utility model and accessory, concrete mode etc., within all dropping on protection domain of the present utility model and open scope.
Claims (27)
1. a photo bio cultivation unit, is characterized in that, described cultivation unit comprises cultivation apparatus and the recycle system, and described cultivation apparatus comprises cultivation face (1) and corresponding supporting structure (2), and described cultivation apparatus is closed loop with the recycle system and is connected; The liquid layer degree of depth on described cultivation face (1) is less than 10cm.
2. cultivation as claimed in claim 1 unit, is characterized in that, the liquid layer degree of depth on described cultivation face (1) is less than 5cm.
3. cultivation as claimed in claim 2 unit, is characterized in that, the liquid layer degree of depth on described cultivation face (1) is less than 3cm.
4. cultivation as claimed in claim 3 unit, is characterized in that, the liquid layer degree of depth on described cultivation face (1) is less than 2cm.
5. cultivation as claimed in claim 4 unit, is characterized in that, the liquid layer degree of depth on described cultivation face (1) is less than 1cm.
6. cultivation as claimed in claim 5 unit, is characterized in that, the liquid layer degree of depth on described cultivation face (1) is 4～8mm.
7. cultivation as claimed in claim 1 unit, is characterized in that, described cultivation unit includes a cultivation face (1).
8. cultivation as claimed in claim 1 unit, is characterized in that, described cultivation face (1) is flexible face; Described flexible face is covered in the upper surface of supporting structure (2), is fixedly connected with supporting structure (2), forms cultivation apparatus.
9. cultivation as claimed in claim 8 unit, is characterized in that, described cultivation face (1) middle part is yield zone; In each edge of described cultivation face (1), at least parallel with algae liquid flow direction two edges, higher than yield zone, form overflow weir (6).
10. cultivation as claimed in claim 9 unit, is characterized in that, described overflow weir (6) is 90 degree with the angle of yield zone.
11. cultivation as claimed in claim 1 unit, is characterized in that, described cultivation face (1) is level or tool certain slope is placed.
12. cultivation as claimed in claim 11 unit, is characterized in that, the described gradient is less than 10 degree.
13. cultivation as claimed in claim 12 unit, is characterized in that, the described gradient is less than 5 degree.
14. cultivation as claimed in claim 13 unit, is characterized in that, the described gradient is less than 2 degree.
15. cultivation as claimed in claim 1 unit, is characterized in that, on cultivation face (1) surface or its top add short mixed structure.
16. cultivation as claimed in claim 1 unit, is characterized in that, the top of described cultivation face (1) is provided with transparent material layer.
17. cultivation as claimed in claim 1 unit, is characterized in that, in described cultivation face (1) outside, establish transparent anti-infrared film.
18. cultivation as claimed in claim 1 unit, is characterized in that, in each edge of described supporting structure (2), at least parallel with algae liquid flow direction two edges are higher than other parts in supporting structure (2).
19. cultivation as claimed in claim 1 unit, is characterized in that, described supporting structure (2) is skeleton shape structure, and it makes whole model by single-material, or are made by multimode, single/multiple material splicing assembling.
20. cultivation as claimed in claim 1 unit, is characterized in that, described supporting structure adds slope conditioning and tension-adjusting gear in (2).
21. cultivation as claimed in claim 1 unit, is characterized in that, the described recycle system comprises pipeline (3), lifting gear (4), surge tank (5) and liquid distributor (7); The end of described pipeline (3) algae liquid flow direction from cultivation face (1) extends to the origin or beginning of algae liquid flow direction; Described liquid distributor (7) is connected with pipeline (3) end, is positioned at the origin or beginning of algae liquid flow direction.
22. cultivation as claimed in claim 21 unit, is characterized in that, described lifting gear (4) is pump.
23. cultivation as claimed in claim 21 unit, is characterized in that, described surge tank (5) is provided with temperature regulating device.
24. cultivation as claimed in claim 21 unit, is characterized in that, described pipeline arranges collection device on (3).
25. cultivation as claimed in claim 18 unit, is characterized in that, described lifting gear (4) is impeller pump, submersible pump or gas-liquid mixing pump, and described surge tank (5) is connected in series with pipeline (3); Or described lifting gear (4) is gas-liquid mixing pump, described surge tank (5) and pipeline (3) also connect.
26. 1 kinds of photo bio cultivating systems by the cultivation cell formation as described in one of claim 1-25, is characterized in that, described photo bio cultivating system is comprised of series, parallel and series-parallel connection a plurality of described cultivation unit.
27. cultivating systems as claimed in claim 26, is characterized in that, the cultivation face tilt direction that respectively cultivates unit in described cultivating system is consistent, and algae liquid flows in each cultivation face cocycle, or is collected after flowing on a plurality of cultivation faces.
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| CN201320461422.XU CN203474813U (en) | 2013-07-30 | 2013-07-30 | Photobiological cultivation unit and system |
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| CN201320461422.XU CN203474813U (en) | 2013-07-30 | 2013-07-30 | Photobiological cultivation unit and system |
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