CN104974924B - A kind of purposes of guiding device, method of river diversion and guiding device - Google Patents
A kind of purposes of guiding device, method of river diversion and guiding device Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
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- 238000005273 aeration Methods 0.000 claims description 89
- 238000000926 separation method Methods 0.000 claims description 77
- 239000007788 liquid Substances 0.000 claims description 67
- 230000000243 photosynthetic effect Effects 0.000 claims description 49
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- 239000012780 transparent material Substances 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 abstract description 38
- 239000000463 material Substances 0.000 abstract description 25
- 230000000903 blocking effect Effects 0.000 abstract description 16
- 238000005276 aerator Methods 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 description 24
- 238000005286 illumination Methods 0.000 description 22
- 238000009792 diffusion process Methods 0.000 description 20
- 230000004888 barrier function Effects 0.000 description 17
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- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
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Abstract
The invention discloses the purposes of a kind of guiding device, method of river diversion and guiding device, is related to hydrodynamics technology field, can ensure that flowing material uniformly mixes up and down.Guiding device disclosed by the invention, including：At least one flow blocking device and at least one flow distribution plate, and the flow blocking device is arranged at intervals with the flow distribution plate, and separate space is formed between the flow blocking device and the flow distribution plate；Aerator, the aerator are arranged on the bottom of at least one separate space, to promote the flowing material in the separate space around the flow distribution plate shuttling movement.The purposes of guiding device disclosed by the invention, method of river diversion and guiding device is suitable for the uniform mixed process of flowing material.
Description
Technical Field
The invention relates to the technical field of hydromechanics, in particular to a flow guide device, a flow guide method and application of the flow guide device.
Background
For certain fluid substances contained in open containers, it is sometimes necessary to maintain their uniform mixing up and down over a period of time to achieve their purpose. For example, for the algae liquid contained in the open pond and used for photosynthetic microorganism cultivation, the cultivation liquid level depth is generally 10-35 cm, the photosynthetic microorganisms on the surface layer of the liquid surface generally receive over-strong illumination, and the middle and lower layers of the algae liquid are difficult to float up to the liquid surface to light regularly, so that the illumination is generally received to be over-weak, the integral photosynthesis of the algae liquid is influenced, and therefore, the algae liquid is required to be uniformly mixed up and down in the cultivation process to improve the cultivation yield of the photosynthetic microorganisms.
At present, the main means of the prior art is to aerate an open container, the aeration is mostly carried out in a mode of arranging an aeration device in parallel at the bottom of a pool, but the fluid is free and irregular diffusion movement under the aeration effect, taking the photosynthetic microorganism cultivation as an example, usually, a lot of algae liquid returns to the bottom of the pool again due to the action of resistance and gravity after floating up or moving for a certain distance, the middle and lower layers of algae liquid can not be ensured to smoothly reach a liquid level illumination area, and the contribution of aeration to promoting the up-and-down mixing of the algae liquid to improve the cultivation yield of the photosynthetic microorganisms is greatly discounted.
Disclosure of Invention
The invention mainly aims to provide a flow guide device, a flow guide method and application of the flow guide device, which can ensure that fluid substances are uniformly mixed up and down.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, the present invention provides a flow guiding device, comprising:
the flow separation device and the flow distribution plate are arranged at intervals, and an independent space is formed between the flow separation device and the flow distribution plate;
an aeration device disposed at a lower portion of at least one of the independent spaces to promote the fluid substances in the independent spaces to circulate around the flow distribution plate.
Specifically, the top end of the flow separation device is higher than the top end of the flow distribution plate, and the bottom end of the flow separation device is lower than the bottom end of the flow distribution plate.
Optionally, the flow separation device is a plate-shaped structure, the plate-shaped structure is arranged to form a predetermined angle with a horizontal plane, wherein the predetermined angle is greater than 0 ° and less than or equal to 90 °; or
The flow separation device is a light guide body structure with a preset length, and the cross section shape of the light guide body in the direction perpendicular to the length direction comprises: at least one of a V-shape, a triangle, a rectangle, a circle, or an irregular shape.
Specifically, when the flow blocking device is a plate-shaped structure and forms a preset angle with the horizontal plane, the aeration device is arranged at each preset angle, and the air outlet direction of the aeration device is parallel to the plate-shaped structure and is obliquely upward;
when the flow separation device is a light guide body structure with a preset length, the aeration device is arranged on any side of each light guide body, and the air outlet direction of the aeration device is obliquely upward along the side surface of the light guide body.
Preferably, the light guide body is made of a transparent material.
Specifically, when the flow separation device is of a plate-shaped structure, the top end of the plate-shaped structure is 2-5 cm higher than the top end of the flow distribution plate, and the bottom end of the plate-shaped structure is 2-5 cm lower than the bottom end of the flow distribution plate; or,
when the flow separation device is a light guide body structure with a preset length, the top end of the light guide body is 2-15 cm higher than the top end of the flow distribution plate, and the bottom end of the light guide body is 2-5 cm lower than the bottom end of the flow distribution plate.
On the other hand, the invention also provides a flow guiding method, which uses the flow guiding device provided by any one of the technical schemes, and the method comprises the following steps:
arranging the flow guide device in a pool containing fluid substances;
ventilating the aeration device of the flow guide device to push the fluid substances to circularly move around the flow distribution plate of the flow guide device.
Specifically, the flow blocking device forms a preset angle with a horizontal plane, wherein the preset angle is larger than 0 degrees and smaller than or equal to 90 degrees.
Optionally, the flow divider or the flow dividing plate of the flow guiding device is arranged non-parallel to the flow direction of the fluid substance in the tank.
In another aspect, an embodiment of the present invention further provides a use of a flow guiding device provided in any one of the above technical solutions, wherein the flow guiding device is used for open pond type photosynthetic microorganism cultivation.
In the flow guiding device provided by the embodiment of the invention, the flow isolating device 10 and the flow dividing plate 20 are arranged at intervals, so that a limited independent space 40 is formed between the flow isolating device 10 and the flow dividing plate 20, and the aeration device 30 is further arranged at the lower part of at least one independent space 40, so that air bubbles generated by the aeration device 30 rise along the vicinity of the side wall of the flow isolating device 10 to push the fluid substances in the independent space to move upwards, the air content in the fluid substances in the vicinity of the side wall of the flow isolating device 10 continuously rises during the rising process of the fluid substances to form a density difference with the fluid substances in the vicinity of the flow dividing plate 20, so that the fluid substances in the independent space generate a relatively regular circulating motion around the flow dividing plate 20 as shown in figure 1 under the combined action of the driving force generated by aeration, the density difference of the fluid and gravity, so as to circulate the fluid substances at different depths through the liquid level, meanwhile, irregular diffusion motion can be formed inside the fluid substances under the action of the aeration gas, so that the fluid substances in the independent spaces can be uniformly mixed up and down under the combined action of the regular circulation motion and the irregular diffusion motion; compared with the irregular diffusion movement only through the aeration effect in the prior art, the flow guide device provided by the embodiment of the invention can enable the fluid substances to be mixed more uniformly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flow guiding device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another flow guiding device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another flow guiding device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another flow guiding device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another flow guiding device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another flow guiding device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another light guide in the flow guiding device according to the embodiment of the present invention;
fig. 8 is a flowchart illustrating a flow guiding method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, the embodiment of the invention provides a flow guiding device, which can be used for uniformly mixing any fluid substance up and down, for example, for uniformly mixing up and down in a photosynthetic microorganism cultivation process. Specifically, the flow guide device may include:
the flow separation device comprises at least one flow separation device 10 and at least one flow distribution plate 20, wherein the flow separation device 10 and the flow distribution plate 20 are arranged at intervals, and an independent space 40 is formed between the flow separation device 10 and the flow distribution plate 20;
and an aeration device 30, wherein the aeration device 30 is disposed at a lower portion of at least one of the independent spaces 40 to promote the fluid material in the independent space 40 to circulate around the flow distribution plate 20.
In the flow guiding device provided by the embodiment of the invention, the flow isolating device 10 and the flow dividing plate 20 are arranged at intervals, so that a limited independent space 40 is formed between the flow isolating device 10 and the flow dividing plate 20, and the aeration device 30 is further arranged at the lower part of at least one independent space 40, so that air bubbles generated by the aeration device 30 rise along the vicinity of the side wall of the flow isolating device 10 to push the fluid substances in the independent space to move upwards, the air content in the fluid substances in the vicinity of the side wall of the flow isolating device 10 continuously rises during the rising process of the fluid substances to form a density difference with the fluid substances in the vicinity of the flow dividing plate 20, so that the fluid substances in the independent space generate a relatively regular circulating motion around the flow dividing plate 20 as shown in figure 1 under the combined action of the driving force generated by aeration, the density difference of the fluid and gravity, so as to circulate the fluid substances at different depths through the liquid level, meanwhile, irregular diffusion motion can be formed inside the fluid substances under the action of the aeration gas, so that the fluid substances in the independent spaces can be uniformly mixed up and down under the combined action of the regular circulation motion and the irregular diffusion motion; compared with the irregular diffusion movement only through the aeration effect in the prior art, the flow guide device provided by the embodiment of the invention can enable the fluid substances to be mixed more uniformly.
Specifically, when being applied to photosynthetic microorganism breed with above-mentioned guiding device, under regular circulatory motion and irregular diffusion motion combined action, the breed liquid of the different degree of depth obtains the relatively even chance at the liquid level light to both avoided well lower floor's photosynthetic microorganism to receive illumination too weak, can also avoid the photosynthetic microorganism on liquid surface layer to receive illumination too strong, and then carried out photosynthesis better and accelerate growth, improved overall yield effectively.
In the embodiment of the present invention, the flow guiding device may include at least one flow blocking device 10 and at least one flow dividing plate 20, and the number of the flow blocking devices 10 and the number of the flow dividing plates 20 may be specifically determined according to the size of the container for disposing the flow guiding device.
For example, when the width of the container for disposing the deflector is large, as shown in fig. 1 and 4, the deflector may include a plurality of flow partitions 10 and a plurality of flow distribution plates 20; it should be noted that when the flow guiding device comprises at least two flow barriers 10, the space formed by two adjacent flow barriers 10 and the flow dividing plate 20 located therebetween can be regarded as an integral independent space, and under the action of the aeration device 30, the fluid substance forms a relatively regular circular rotating flow around the flow dividing plate 20 in each integral independent space.
When the width of the container for disposing the deflector is small, as shown in fig. 2 and 5, the deflector may include a flow blocking device 10 and a flow dividing plate 20; in this case, the space formed by the flow separation device 10 provided with the aeration device 30, the open pond wall and the flow distribution plate 20 located therebetween can be regarded as an integral independent space, and the fluid substance forms a regular circular and rotational flow around the flow distribution plate 20 in the integral independent space under the action of the aeration device 30.
In short, the skilled person can specifically select the number of the flow dividing devices 10 and the flow dividing plates 20 according to the actual situation, and the invention is not limited to this.
In the embodiment of the present invention, the top end of the flow separation device 10 is higher than the top end of the flow distribution plate 20, and the bottom end of the flow separation device 10 is lower than the bottom end of the flow distribution plate 20.
In the embodiment of the present invention, the flow separator 10 may have a plate-like structure, for example, including at least one of a flat plate, a curved plate, and a corrugated plate as shown in fig. 1 to 3, and in short, the present invention is not limited thereto as long as the fluid substance can rise along the vicinity of the sidewall of the flow separator 10 under the aeration action.
The flow separation device 10 of the plate-shaped structure is arranged to form a predetermined angle alpha with the horizontal plane, wherein the predetermined angle alpha is greater than 0 degrees and less than or equal to 90 degrees, preferably 45-60 degrees, such as 1 degree, 30 degrees, 45 degrees, 50 degrees, 55 degrees, 60 degrees, 75 degrees or 90 degrees.
Preferably, the aeration device 30 can be arranged on one side of the plate-shaped flow separation device 10 with a predetermined angle α to the horizontal plane, and the air outlet direction of the aeration device 30 is parallel to the plate-shaped structure and is inclined upwards, for example, as shown in fig. 1 and 2, when the flow separation device 10 is inclined to the right with a predetermined angle α to the horizontal plane, the aeration device 30 can be arranged on the right side of the flow separation device 10; when the flow separation device 10 is inclined to the left and forms a predetermined angle α with the horizontal plane, the aeration device 30 may be disposed on the left side of the flow separation device 10; when the flow separation device 10 is vertical to the horizontal plane, the aeration device 30 can be arranged on any one of the left side or the right side of the flow separation device 10; in summary, in the flow guiding device of the present invention, the aeration device is disposed on one side of the plate-shaped flow blocking device 10 with a small angle with the horizontal plane, or on any one side of the flow blocking device 10 when the flow blocking device 10 is perpendicular to the horizontal plane.
In particular, the flow barriers of the plate-like structure may be transparent or opaque. Further, the material of the flow barrier with a plate-shaped structure may be at least one selected from plastic, rubber, glass, steel and composite materials, preferably a material with good weather resistance and water resistance, such as plastic and glass.
When the deflector is positioned in the container, the distribution plate 20 is suspended in the liquid, with its top end submerged below the liquid level and its bottom end at a distance from the bottom wall of the container, so that the circulation of the fluid material around the distribution plate 20 is effectively ensured.
In practical applications, when the fluid substance contained in the container needs to be illuminated, such as when the container is used for cultivating photosynthetic microorganisms, it is preferable that, in order to achieve the above-mentioned circulation effect and not to affect photosynthesis of the photosynthetic microorganisms, whether the flow separation device of the plate-shaped structure is transparent or opaque, the top end of the flow separation device 10 of the plate-shaped structure can be 2-5 cm higher than the top end of the flow distribution plate 20, such as 2cm, 3cm, 4cm or 5 cm; the bottom end of the flow separation device 10 can be 2-5 cm lower than the bottom end of the flow distribution plate, such as 2cm, 3cm, 4cm or 5 cm. Thus, when the flow guide device is arranged in the container, the top end of the flow separation device 10 can be lower than the liquid level for a certain distance, for example, 0-10 cm, and then the top end of the flow distribution plate 20 is submerged 2-15 cm below the liquid level; make the bottom of separate flow device 10 apart from container bottom less than or equal to 5cm, so the bottom of flow distribution plate 20 will be apart from bottom of the pool 2 ~ 10cm to guarantee that photosynthetic microorganism can encircle flow distribution plate 20 and form regular circulation rotatory flow among the aeration process, and can also guarantee that platelike structure can not shelter from the illumination because of exposing the liquid level, therefore can not influence photosynthetic microbial photosynthesis.
Optionally, when the flow separation device with a plate-shaped structure is made of a transparent material, especially a material with high transparency, the top end of the flow separation device 10 with a plate-shaped structure may be 2-15 cm higher than the top end of the flow distribution plate 20, such as 2cm, 5cm, 10cm, or 15 cm. Thus, when the flow guide device is arranged in the container, the top end of the flow separation device 10 can be higher than the liquid level for a certain distance, for example, 0-10 cm, and then the top end of the flow distribution plate 20 is submerged 2-5 cm below the liquid level; thus, the photosynthetic microorganisms can form regular circular rotation flow around the flow distribution plate 20 in the aeration process, and the plate-shaped structure can not block the light, so that the photosynthesis of the photosynthetic microorganisms can not be influenced.
In practical applications, when the fluid substance contained in the container is simply mixed up and down without illumination, the embodiment of the present invention has no specific requirements on the relative sizes of the flow separation device and the flow distribution plate, as long as it can ensure that the flow distribution plate is suspended in the liquid when the flow guide device is arranged in the container, thereby effectively ensuring that the fluid substance circularly moves around the flow distribution plate.
In another embodiment of the present invention, the flow-blocking device 10 may further include a light guide structure with a predetermined length as shown in fig. 4 to 7, and a cross-sectional shape of the light guide 10 perpendicular to the length direction may include: at least one of a V-shape as shown in fig. 4, 5 or 7, a triangular shape as shown in fig. 6, a rectangular shape, a circular shape, or an irregular shape; in this case, the aeration device 30 may be disposed on any side of each flow blocking device 10, and the air outlet direction of the aeration device 30 is inclined upward along the side of the light guide 10.
The flow-blocking device 10 of the light guide structure may be solid as shown in fig. 6, or hollow as shown in fig. 7, and may be preferably filled with transparent liquid or solid, for example, water, ethanol, plastic, etc. in the V-shaped light guide shown in fig. 7; of course, it is also possible to fill the interior with an opaque liquid or solid, which is not limited by the present invention.
Optionally, as shown in fig. 6, one or both ends of each light guide 10 may be further provided with a flow guiding head 13, for example, when the flow guiding device is placed in a container, the flow guiding head is provided at the water facing end to reduce the resistance of the light guide to the fluid.
Preferably, the light guide 10 and/or the flow guiding head 13 may be made of a transparent material, for example, a transparent material such as transparent plastic, glass, composite material, etc.; materials with better weather resistance and water resistance, such as plastic and glass, are preferred.
The light guide body 10 and/or the flow guiding head 13 made of transparent material are important for practical applications, for example, when the flow guiding device is applied to culture of photosynthetic microorganisms, the flow blocking device 10 of the transparent light guide body structure not only can play a role in guiding flow so as to enable the fluid substance to rise along the vicinity of the side wall of the fluid substance under the action of aeration, but also can play a role in guiding light so as to guide the light on the liquid surface to be below the liquid surface and increase the light receiving area of the fluid substance, thereby further improving the photosynthesis of the photosynthetic microorganisms.
When the deflector is placed in a container, the distribution plate 20 is suspended in the liquid, with its top end submerged below the liquid level and its bottom end at a distance from the bottom of the tank, so that the circulation of the fluid material around the distribution plate 20 is effectively ensured.
In practical applications, when the fluid substance contained in the container needs illumination, such as when the container is used for cultivating photosynthetic microorganisms, preferably, in order to achieve the above-mentioned circulation effect and not to affect photosynthesis of the photosynthetic microorganisms, the top end of the transparent light guiding body may be 2-15 cm, such as 2cm, 4cm, 6cm, 8cm, 10cm, 12cm, 14cm or 15cm, higher than the top end of the flow distribution plate, and the bottom end of the light guiding body may be 2-5 cm, such as 2cm, 3cm, 4cm or 5cm lower than the bottom end of the flow distribution plate. Therefore, when the flow guide device is placed in the open pool, the top end of the light guide body can be higher than the liquid level for a certain distance, for example, 0-10 cm, and then the top end of the flow distribution plate is submerged 2-5 cm below the liquid level; the bottom of the light guide body is less than or equal to 5cm away from the bottom of the pool, and the bottom of the flow distribution plate is 2-10 cm away from the bottom of the pool, so that the photosynthetic microorganisms can form regular circular rotating flow around the flow distribution plate in the aeration process, and the light guide body can guide illumination below the liquid level.
Of course, when the fluid substance contained in the container does not need to be illuminated but only needs to be simply mixed up and down, the embodiment of the present invention has no specific requirements on the transparency of the flow separation device of the light guide structure and the relative size of the flow distribution plate, as long as the flow distribution plate is suspended in the liquid when the flow guide device is arranged in the container, thereby effectively ensuring that the fluid substance circularly moves around the flow distribution plate.
In an embodiment of the invention, the flow barriers and the distribution plates of the flow guiding device may be connected to each other by at least one connecting beam, wherein the connecting beam may be located above, and/or in the middle, and/or below the flow barriers and the distribution plates.
Preferably, as shown in fig. 3, the fixation of each flow separation device 10 and the flow distribution plate 20 between each flow separation device 10 may be arranged as follows: the brackets 60 are added parallel to the flow barriers 10 or the distribution plates 20 from one of their sides and the connection beams 50 are added below the brackets 60 (i.e. below the flow barriers and the distribution plates) to connect them to each other, and furthermore, the cross-sectional area of the connection beams should be as small as possible to reduce the fluid resistance; alternatively, as shown in fig. 6, the fixation of the respective flow barriers 10 and the flow dividing plate 20 between the respective flow barriers 10 may be arranged as follows: a bracket 60 parallel to the flow distribution plate 20 is added from one side of the flow distribution plate 20, and a connecting beam 50 is added above each flow separation device 10 and the bracket 60 to connect the flow separation devices and the bracket with each other; of course, the connecting beams may be added from the middle of the flow barriers to connect the flow barriers to each other, and in short, the flow barriers and the splitter plates are connected to each other as a whole, which is not limited by the present invention.
In the embodiment of the invention, each flow separation device and each flow distribution plate have certain lengths, and can be parallel to each other in the length direction or form a certain angle, for example, the angle is 0-30 degrees, such as 1 degree, 5 degrees, 10 degrees, 20 degrees or 30 degrees; the heights of the flow barriers may be equal or different. The splitter plate may be parallel to the flow divider or may form an angle with the flow divider, for example, 0 to 30 °, such as 1 °, 5 °, 10 °, 20 °, or 30 °. Preferably, in the embodiment of the present invention, each flow separation device is parallel to each flow distribution plate in length. Specifically, the lengths of the flow barriers and the flow dividing plates can be specifically determined according to actual conditions, and the invention is not limited to this.
Each diverter plate may be a plate-like structure such as at least one of a flat plate, a curved plate, or a corrugated plate. The flow dividing plate is mainly arranged to divide the space between the flow dividing device provided with the aeration device and the other flow dividing device or the container wall into two parts, so that the fluid substances on two sides of the flow dividing plate generate density difference in the aeration process, and the fluid substances are ensured to generate rotary flow in the space. Therefore, the present invention is not limited to the specific structure of the flow distribution plate as long as the flow distribution plate can perform this function.
The material of the splitter plate can be selected from plastic, rubber, glass, steel, composite materials and the like, and materials with good weather resistance and water resistance, such as plastic and glass, are preferred.
The diverter plate may be transparent or opaque.
The aeration device 30 is provided at one side of the flow barrier and is located at a lower portion of the independent space 40 between the flow barrier 10 and the flow distribution plate 20. In this way, the air bubbles generated by the aeration device 30 will rise along the vicinity of the side wall of the flow separation device 10, that is, the side wall of the flow separation device 10 can play a certain guiding role for the aeration air bubbles, so that the air bubbles can push the fluid substance to move upwards, and thus the fluid substance forms an approximately circular movement trend around the flow distribution plate 20 in each integral independent space, thereby realizing the up-and-down uniform mixing of the fluid substance.
Further, when the flow separation device is a transparent light guide 10, and the aeration device 30 acts on the side wall of the light guide 10, the bubbles can also play a certain role in scouring the light guide 10, so that when the flow guide device is applied to culture photosynthetic microorganisms, the photosynthetic microorganisms can be prevented from attaching to the surface of the light guide 10 for a long time and damaging the light guide performance of the light guide 10.
In addition, the aeration device 30 may be externally connected to a pneumatic device (not shown) to provide the aeration device 30 with a gas having a flow rate.
It should be noted that the air outlet holes (not shown) of the aeration device 30 should be as close to the bottom of the flow separation device 10 as possible, and may be offset from the bottom of the flow separation device 10 in the vertical direction and/or the horizontal direction. The number of the aeration apparatuses 30 provided in the lower portion of each independent space is not particularly limited, and may be one, or may be plural, such as two, three, four, or the like.
Specifically, the aeration device can be an aeration pipe, an oxygenation pipe, an aeration stone, a perforated pipe and the like; the material of the aeration device can be plastic, rubber, glass, steel, composite materials and the like, and preferably, the material has good weather resistance and water resistance, simple structure, easy maintenance and difficult blockage, such as plastic.
The aeration device 30 may be transparent or opaque.
Specifically, fig. 3 is a schematic structural diagram of a flow guiding device provided by the present invention.
As shown in fig. 3, the flow separator 10, the baffle plate 20, and the aerator pipe 30 are mounted at a predetermined position and fixed together by a connecting beam 50, a bracket 60, and a bracket attachment 70, and then are integrally placed in an open pond containing fluid material, wherein the initial inclination angle of the flow separator 10 and the flow distribution plate 20 to the horizontal plane is set to 60 °, and of course, may be set to 0-90 ° according to specific situations; the aeration pipe 30 is arranged at the right side of the flow isolating device 10 and is externally connected with aeration power equipment (not shown).
Thus, under the aeration action of the aeration pipe 30, the bubbles rise along the vicinity of the right side wall of the flow separation device 10 to push the fluid substance to move obliquely upward, and at the same time, the gas content in the fluid substance in the independent space formed by the right side of the flow separation device 10 and the flow distribution plate 20 increases, and a density difference is formed between the gas content and the fluid substance in the independent space formed by the right side of the flow distribution plate 20 and the left side of the flow separation device 10. The fluid material is forced to rotate clockwise around the diverter plate 20 under the combined action of the aeration impulse, fluid density differential, and gravity. In this way, fluid substances of different depths circulate through the top, and in the local fluid substances passing through the top, irregular diffusion movements are formed in the interior of the local fluid substances under the action of the aeration gas. Thus, under the combined action of regular circulation motion and irregular diffusion motion, fluid substances at different depths are uniformly mixed up and down.
Correspondingly, as shown in fig. 8, an embodiment of the present invention further provides a flow guiding method, where the method uses any one of the flow guiding devices provided in the embodiment of the present invention, and specifically, the method may include:
s1, arranging the flow guide device in a pool containing fluid substances;
and S2, ventilating the aeration device of the flow guide device to push the fluid substances to circularly move around the flow distribution plate of the flow guide device.
In the flow guiding device provided by the embodiment of the invention, the flow isolating device 10 and the flow dividing plate 20 are arranged at intervals, so that a limited independent space 40 is formed between the flow isolating device 10 and the flow dividing plate 20, and the aeration device 30 is further arranged at the lower part of at least one independent space 40, so that air bubbles generated by the aeration device 30 rise along the vicinity of the side wall of the flow isolating device 10 to push the fluid substances in the independent space to move upwards, the air content in the fluid substances in the vicinity of the side wall of the flow isolating device 10 continuously rises during the rising process of the fluid substances to form a density difference with the fluid substances in the vicinity of the flow dividing plate 20, so that the fluid substances in the independent space generate a relatively regular circulating motion around the flow dividing plate 20 as shown in figure 1 under the combined action of the driving force generated by aeration, the density difference of the fluid and gravity, so as to circulate the fluid substances at different depths through the liquid level, meanwhile, irregular diffusion motion can be formed inside the fluid substances under the action of the aeration gas, so that the fluid substances in the independent spaces can be uniformly mixed up and down under the combined action of the regular circulation motion and the irregular diffusion motion; compared with the irregular diffusion movement only through the aeration effect in the prior art, the flow guide device provided by the embodiment of the invention can enable the fluid substances to be mixed more uniformly.
Specifically, when being applied to photosynthetic microorganism breed with above-mentioned guiding device, under regular circulatory motion and irregular diffusion motion combined action, the breed liquid of the different degree of depth obtains the chance of the liquid level light that is relatively even to both avoided well lower floor's photosynthetic microorganism to accept illumination too weak, can also avoid the photosynthetic microorganism on liquid surface layer to accept illumination too strong, and then carried out photosynthesis and accelerate growth better, improved overall yield effectively.
It should be noted that, in the embodiment of the present invention, the flow separation device or the flow distribution plate of the flow guide device is disposed non-parallel to the flow direction of the fluid substance in the pool.
Specifically, in step S2, the step of circulating the fluid substance around the dividing plate of the flow guide device may specifically include:
s21, the fluid substance moves upwards along the side wall of the flow separation device under the action of the aeration driving force of the aeration device and the guiding action of the flow separation device; the step limits the fluid substance to move upwards along the side wall of the flow separation device under the action of the aeration driving force of the aeration device, namely the side wall of the flow separation device plays a role in guiding the fluid substance, thereby being beneficial to regulating the movement track of the fluid substance.
S22, enabling the fluid substance to reach the surface layer of the liquid surface and circularly move around the splitter plate of the flow guiding device under the action of gravity and density difference; the step limits that under the action of the aeration driving force of the aeration device, the fluid substance moves to the surface layer of the liquid surface along the side wall of the flow separation device and then moves downwards under the action of the self gravity and the density difference among the spaces, so that the fluid substance forms circular motion around the flow distribution plate.
Specifically, in the embodiment of the invention, parameters such as the number, the position and the aeration speed of the aeration devices can be adjusted according to actual conditions, so that the time for circulating the fluid substances to the surface layer of the liquid surface is controlled, and the frequency for uniformly mixing the fluid substances up and down is adjusted.
Based on the disclosure of the present invention, those skilled in the art can specifically determine relevant parameters involved in the diversion process according to actual conditions, and in short, the fluid substance can be circulated around the diversion plate.
More specifically, in step S2, the step of circulating the fluid substance around the dividing plate of the flow guiding device may specifically include:
s21', under the aeration action of the aeration device, the bubbles rise along the side wall of the flow separation device and push the fluid substances to move obliquely upwards along the side wall of the flow separation device;
in this step, a flow guiding device with an inclined sidewall of the flow separation device is preferably used, specifically, the sidewall of the flow separation device and a horizontal plane may form a predetermined angle, and the predetermined angle may be greater than 0 ° and less than or equal to 90 °, preferably 45 to 60 °, such as 45 °, 50 °, 55 °, or 60 °; such as any of the flow-directing devices shown in fig. 1-7.
S22', in the rising process of the fluid substance, the gas content in the independent space formed by the flow separation device and the flow distribution plate is continuously increased, and the density of the fluid substance is gradually increased and distributed from bottom to top; the fluid substance in the top area of the independent space and the fluid substance in the space on the other side of the flow distribution plate form a first density difference, and under the action of the first density difference, the fluid substance moves from the top of one side of the flow distribution plate to the top of the other side of the flow distribution plate through the liquid level;
it should be noted that the density of the fluid material in the head region of the individual spaces is typically the greatest, and thus the first density difference between the fluid material in the head region and the fluid material in the space on the other side of the manifold is typically the greatest density difference. In this step, the fluid substance moves from the top of one side of the diverter plate to the top of the other side of the diverter plate, bypassing the top of the diverter plate.
S23', the density of the fluid substance on the top of the other side of the flow distribution plate is increased and the density of the fluid substance is distributed in a gradient way from top to bottom, and the fluid substance moves downwards under the action of gravity and the second density difference;
the second density difference mainly refers to the upper and lower density difference formed by the gradient decreasing distribution of the fluid substances in the space on the other side of the flow distribution plate from top to bottom. In this step, the fluid substance moves from top to bottom in the space on the other side of the diverter plate.
S24', the density of the fluid material increases from the two sides of the diversion plate at the bottom of the diversion plate, and the fluid material moves from the bottom of the diversion plate to the next circulation under the third density difference.
In the embodiment of the invention, in the pool, the fluid substances are limited in each independent space by the flow guide device, and the fluid substances circularly move around the flow distribution plate in each integral independent space by the method provided by the embodiment of the invention, so that the fluid substances are uniformly mixed up and down; in addition, in the circulating motion process, the interior of the local fluid substance forms irregular diffusion motion under the action of the aeration gas. Therefore, under the combined action of regular circulation motion and irregular diffusion motion, fluid substances in different areas are mixed relatively uniformly, and then are mixed uniformly better.
The embodiment of the invention changes the disordered and irregular flowing state of the fluid in the aeration in the prior art by constructing the regular and concise flow guide device and flow guide method, regulates the upward floating or moving track of the fluid substance, ensures that the fluid substance flows regularly and circularly on the whole, and simultaneously carries out irregular free diffusion movement in the circulating flow, thereby avoiding or reducing the problem that the part of the fluid substance cannot reach the liquid level due to the back-turning action and cannot be uniformly mixed;
specifically, when the flow guiding device and the flow guiding method provided by the embodiment of the invention are applied to the cultivation process of photosynthetic microorganisms, the photosynthetic microorganisms at the bottom of the pond far away from the illumination area can regularly float or move to a near illumination area (such as a liquid surface layer), and the improved device and method can better increase the light probability of the photosynthetic microorganisms far away from the illumination area, and simultaneously reduce the illumination time of the photosynthetic microorganisms at the near illumination area, thereby weakening the illumination damage of illumination to the photosynthetic microorganisms at the near illumination area. Therefore, the embodiment of the invention enhances the photosynthesis of the photosynthetic microorganism as a whole and promotes the growth of the photosynthetic microorganism as a whole.
On the other hand, the embodiment of the invention also provides a use of the flow guiding device, wherein the flow guiding device is any one of the flow guiding devices provided by the embodiment of the invention, and particularly, the flow guiding device is used for open pond type photosynthetic microorganism cultivation.
As shown in fig. 1 to 7, when any one of the diversion devices of the embodiments of the present invention is used for the cultivation of photosynthetic microorganisms in an open pond, an open pond cultivation system is formed, and the system comprises: the open pond 200 and any one of the diversion devices provided by the embodiments of the present invention are disposed in the open pond 200.
In the open pond culture system provided by the embodiment of the invention, the flow separation device 10 and the flow distribution plate 20 form a limited independent space 40, the aeration device 30 is arranged at one side of the flow separation device 10 and is positioned at the lower part of the independent space 40, so that air bubbles generated by the aeration device 30 rise along the vicinity of the side wall of the flow separation device 10 to push photosynthetic microorganisms at the lower layer in the open pond to move upwards, the air content in the photosynthetic microorganisms in the independent space between the flow separation device 10 and the flow distribution plate 20 is continuously increased in the rising process of the photosynthetic microorganisms, a density difference is formed with culture liquid in the space at the corresponding side, so that the culture liquid generates regular circulation motion as shown in figure 1 around the flow distribution plate 20 under the combined action of the driving force generated by aeration, the density difference of the culture liquid and gravity, so that the culture liquid at different depths circulates through the liquid level, and in the local culture liquid passing through the liquid level, the inside of the photosynthetic microorganism reactor forms irregular diffusion movement under the action of aeration gas, so that under the combined action of regular circulation movement and irregular diffusion movement, photosynthetic microorganisms at different depths obtain relatively uniform opportunity of liquid surface visible light, thereby not only preventing the photosynthetic microorganisms at the middle and lower layers from receiving too weak light, but also preventing the photosynthetic microorganisms at the surface layer of the liquid surface from receiving too strong light, further better carrying out photosynthesis to accelerate growth, and effectively improving the total yield.
It should be noted that, since any one of the diversion devices provided in the embodiments of the present invention is used in the application of the diversion device provided in the present invention, the diversion device in the application has any one of the technical features described above, and the present invention will not be repeated in detail on the specific structure of the diversion device, and the following description will focus on the position or structural relationship between the open pond 200 and the diversion device.
Specifically, the open pond 200 contains the culture solution, and the liquid level depth may be 5-100 cm, preferably 10-15 cm, for example, 5cm, 10cm, 12cm, 14cm, 15cm, 20cm, 40cm, 70cm or 100 cm.
The length direction of the diversion device can be arranged along the length direction of the open pool 200, and can form a certain included angle with the length direction of the open pool 200, wherein the included angle can be 0-90 degrees, preferably 0-30 degrees, such as 0 degree, 1 degree, 5 degree, 10 degree, 15 degree, 20 degree, 30 degree, 45 degree, 60 degree or 90 degree.
The bottom of the flow guiding device may be in contact with the bottom of the open pond 200 or may be kept at a distance of preferably less than or equal to 5cm, such as 0cm, 1cm, 2cm, 3cm, 4cm or 5 cm.
It should be noted that the bottom of the diversion device in the embodiment of the present invention refers to the lowest position in the entire diversion device, for example, in the diversion device shown in fig. 1 or fig. 2, the bottom of the diversion device refers to the bottom of the aeration device located at the lowest position; in the deflector shown in fig. 3, the bottom of the deflector is the bottom of the connection beam 50 connecting the flow partitioner 10 and the flow distribution plate 20. Similarly, the top of the deflector in the embodiments of the present invention refers to the highest position in the whole deflector.
Optionally, the top of the flow guiding device may be a certain distance lower than the liquid level of the open pond 200, for example, when the top of the flow guiding device is made of an opaque material, for example, when the flow isolating device is a plate-shaped structure made of an opaque material, the top of the flow guiding device may be made to be a certain distance lower than the liquid level of the open pond 200, the distance may be 0 to 10cm, preferably 0 to 5cm, more preferably 1 to 3cm, such as 0cm, 1cm, 2cm, 3cm, 4cm, 5cm, 7cm or 10cm, so as to avoid the top of the flow guiding device made of an opaque material from shielding the light, thereby ensuring the light area of the culture solution as large as possible.
Of course, when the top of the flow guiding device is made of a transparent material, for example, when the flow blocking device 20 with a plate-shaped structure is made of a transparent material, especially a material with high transparency, or when the flow blocking device 20 is a transparent light guide, the top of the flow guiding device may be higher than the liquid level of the open pond 200 by a certain distance, which may be 0 to 10cm, preferably 0 to 5cm, more preferably 1 to 3cm, such as 0cm, 1cm, 2cm, 3cm, 4cm, 5cm, 7cm, or 10 cm. In short, the present invention is not limited to this, as long as the top of the diversion device can be prevented from blocking the light, so as to ensure the light area of the culture solution as large as possible.
In the application of the diversion device provided by the embodiment of the invention, the top of the diversion plate 20 can be 2-5 cm lower than the liquid level of the open pool 200, such as 2cm, 3cm, 4cm or 5 cm; the bottom of the flow distribution plate 20 can be 2-5 cm lower than the bottom of the open pool 200, such as 2cm, 3cm, 4cm or 5 cm.
It can be understood that, in the implementation of the present invention, the specific size and configuration of the diversion device can be determined according to the actual cultivation situation, for example, when the open pond width is small, one flow isolation device 10 and one diversion plate 20 can be adopted, and when the open pond width is large, a plurality of flow isolation devices 10 and a plurality of diversion plates 20 can be adopted; when the cultivation density is high, the width between each flow separation device 10 and each flow distribution plate 20 can be smaller, for example, 50-100 mm, and when the cultivation density is low, the width between each flow separation device 10 and each flow distribution plate 20 can be appropriately larger, for example, 100-150 mm.
In short, as long as the algae liquid in the open pond 200 can form regular rotary flow in each integral independent space through the flow guide device disclosed by the invention, and the light exposure probability of the algae liquid is improved, a person skilled in the art can specifically select the algae liquid according to the actual culture conditions according to the content disclosed by the invention and the common general knowledge in the field.
In the embodiment of the invention, the flow guide devices are fixedly connected and arranged in the open pond through the simple bracket, the flow separation devices 10 and the flow distribution plate 20 form a limited integral independent space, and the culture solution forms regular rotary motion and irregular diffusion motion in each limited integral independent space through the gas provided by the aeration device 30, so that the photosynthetic microorganisms with different depths regularly reciprocate between a light area (namely liquid level) and a dark area (namely middle and lower layers of algae solution), namely, the invention changes the disordered and irregular flow state of the fluid in aeration in the prior art by constructing the regular and concise flow limiting space, thus, in the improved open pond culture system, the probability that the photosynthetic microorganisms with different depths float up to the liquid level can be better increased, and the illumination time of the photosynthetic microorganisms on the surface layer of the liquid level can be reduced, further, the illumination damage of illumination to the photosynthetic microorganisms on the surface layer of the liquid surface is weakened, so that the invention enhances the integral photosynthesis of the photosynthetic microorganisms and promotes the integral growth of the photosynthetic microorganisms.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A flow directing device, comprising:
the flow separation device and the flow distribution plate are arranged at intervals, and an independent space is formed between the flow separation device and the flow distribution plate, wherein the flow separation device is of a plate-shaped structure, the plate-shaped structure is arranged at a preset angle of 45-60 degrees with a horizontal plane, or the flow separation device is of a light guide body structure with a preset length, and the cross section of the light guide body in the direction perpendicular to the length direction is V-shaped;
when the flow separation device is of a plate-shaped structure and forms a preset angle of 45-60 degrees with the horizontal plane, the aeration device is arranged at each preset angle, and the air outlet direction of the aeration device is parallel to the plate-shaped structure and is obliquely upward; when the flow separation device is a light guide body structure with a preset length, the aeration device is arranged on any side of each light guide body, and the air outlet direction of the aeration device is obliquely upward along the side surface of the light guide body so as to push the fluid substances in the independent space to circularly move around the flow distribution plate;
the flow separation device is made of transparent materials, the top end of the flow separation device is higher than the top end of the flow distribution plate, and the bottom end of the flow separation device is lower than the bottom end of the flow distribution plate; the flow guide device is configured in such a way that when the flow guide device is arranged in a pool containing fluid substances, the top end of the flow separation device is higher than the liquid level, and the top end of the flow distribution plate is submerged below the liquid level.
2. The airflow guiding device of claim 1, wherein the light guiding member is made of a transparent material.
3. Flow guiding device according to claim 1,
when the flow separation device is of a plate-shaped structure, the top end of the plate-shaped structure is 2-5 cm higher than the top end of the flow distribution plate, and the bottom end of the plate-shaped structure is 2-5 cm lower than the bottom end of the flow distribution plate; or,
when the flow separation device is a light guide body structure with a preset length, the top end of the light guide body is 2-15 cm higher than the top end of the flow distribution plate, and the bottom end of the light guide body is 2-5 cm lower than the bottom end of the flow distribution plate.
4. A method for guiding flow, wherein the flow guide device according to any one of claims 1 to 3 is used, the method comprising:
arranging the flow guide device in a pool containing fluid substances;
ventilating the aeration device of the flow guide device to push the fluid substances to circularly move around the flow distribution plate of the flow guide device.
5. Flow directing method according to claim 4, wherein the flow dividing means or flow dividing plate of the flow directing device is arranged non-parallel to the direction of flow of the fluid substance in the basin.
6. Use of a flow guiding device according to any of claims 1 to 3 for open pond photosynthetic microorganism cultivation.
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| CN110283692A (en) * | 2019-06-15 | 2019-09-27 | 德沃（苏州）环境科技有限公司 | A kind of marsh gas reactor |
| CN110894463A (en) * | 2019-12-20 | 2020-03-20 | 深圳泰利能源有限公司 | Flat plate type photobioreactor for microalgae culture |
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| CN102477397A (en) * | 2010-11-23 | 2012-05-30 | 新奥科技发展有限公司 | Flow guiding device |
| CN103255046A (en) * | 2012-02-16 | 2013-08-21 | 中国石油天然气股份有限公司 | Circulating foam photobioreactor and application thereof |
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