Photo-biological reaction device

Abstract

The utility model discloses a photo-biological reaction device which comprises a shutter mechanism, a driving mechanism and a reaction system, the shutter mechanism comprises a window frame and a plurality of blades, the upper ends and the lower ends of the blades arranged side by side are rotationally installed on the window frame, the blades are of transparent hollow structures, liquid inlets are formed in the lower ends of the blades, and ventilation openings are formed in the upper ends of the blades. The driving mechanism is in driving connection with the blades; the reaction system comprises a liquid container, a peristaltic pump, a communicating pipe, an air blower and a liquid collecting container, the communicating pipe is communicated with liquid inlets in the lower ends of the blades, the liquid outlet end of the liquid container containing water and chlorella is connected with the liquid inlet end of the communicating pipe through the peristaltic pump, and the air outlet end of the air blower is connected with the air inlet end of the communicating pipe. And the liquid outlet end of the communicating pipe is connected with the liquid collecting container. According to the reaction device, a shutter space is used for providing a growth space for chlorella, the occupied area of a building is greatly saved, biological carbon sequestration and air purification are realized, and a product is rich in triglyceride, can be prepared into eco-friendly biodiesel, and is energy-saving and environment-friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of energy saving, in particular to a photobiological reaction device. Background Art

[0002] Biomass carbon fixation is a very promising "double reduction" technology. Microalgae belongs to traditional biomass and has the advantages of fixing CO2, purifying organic wastewater, and can be used as biofuel. Through photosynthesis, the carbon element in CO2 is fixed and converted into its own biomass. Among them, Chlorella contains growth factor CGF, which is a high-oil content biomass for preparing biodiesel. On the other hand, my country's current building energy consumption accounts for a high proportion of the country's total energy consumption. From the perspective of energy conservation and environmental protection, building energy conservation is an important development trend. How to combine the two to improve energy utilization and energy-saving technology is an important research direction and topic.

[0003] Therefore, it is necessary to design a photobiological reaction device to overcome the above problems. Utility Model Content

[0004] In order to avoid the above problems, a photobiological reaction device is provided, which has a simple structure and is easy to operate. The shutter space is used to provide growth space for Chlorella, which greatly saves building space. It relies on the photosynthesis of Chlorella to absorb indoor CO2, realize biological carbon fixation, purify the air, and bring good comfort, promoting human physical and mental health. The Chlorella accumulated after cultivation is different from general algae, is rich in triglycerides, and can be prepared into eco-friendly biodiesel, which is expected to replace fossil energy and save energy and protect the environment.

[0005] The utility model provides a photobiological reaction device, comprising: a shutter mechanism, a driving mechanism and a reaction system; the shutter mechanism comprises a window frame and a plurality of blades, the upper and lower ends of the plurality of blades arranged in parallel are respectively rotatably mounted on the window frame, the blades are transparent hollow structures, the lower ends are provided with a liquid inlet, and the upper ends are provided with an air vent; the driving mechanism drives and connects the plurality of blades, and drives the blades to rotate on the window frame; the reaction system comprises a liquid container, a peristaltic pump, a connecting pipe, a blower and a liquid collecting container, the connecting pipe is respectively connected with the liquid inlets at the lower ends of the plurality of blades, the liquid outlet end of the liquid container containing water and Chlorella is connected with the liquid inlet end of the connecting pipe through the peristaltic pump, the air outlet end of the blower is connected with the air inlet end of the connecting pipe, and the liquid outlet end of the connecting pipe is connected with the liquid collecting container.

[0006] Furthermore, the blade is in an arc shape bent to one side.

[0007] Furthermore, the driving mechanism includes a swing motor, a rack and multiple gears. The multiple gears are installed one by one at the upper ends of the multiple blades. The rack is installed on the window frame along its length direction and meshes with the multiple gears. The output end of the swing motor is connected to one end of the rack to drive the rack to move back and forth.

[0008] Furthermore, a regulating valve for regulating gas flux is provided at the connection between each blade and the connecting pipe.

[0009] Furthermore, a gas collecting valve is provided between the connection between the connecting pipe and the liquid collecting container.

[0010] Furthermore, the upper and lower ends of the blade are rotatably mounted on the window frame through copper sleeves or bearings.

[0011] Furthermore, the blade is made of organic glass.

[0012] Furthermore, both the light-facing surface and the light-back surface of the blade are curves convex toward the light direction.

[0013] Furthermore, the curved convex portion of the blade facing the light surface is offset from the center of the blade.

[0014] Microalgae is a general term for all single-cell or simple multi-cell photosynthetic microorganisms. They can use light energy to convert CO2 into organic matter and release O2. Compared with terrestrial plants, they have the characteristics of high photosynthesis efficiency and fast growth rate. The CO2 fixed by them accounts for more than 40% of the global CO2 fixation. Chlorella is a spherical single-cell freshwater algae with a diameter of 3 to 8 μm. It is a kind of microalgae that grows and reproduces by photosynthesis. The energy produced is used for aerobic respiration and various life activities. It can produce organic matter such as triglycerides (TG), which can be converted into biomass fuel after hydrogenation with methanol. By utilizing the chemical energy ATP and Pi synthesized by the light reaction in photosynthesis, the captured CO2 can be fixed using 1,5-bisphosphate ribulose carboxylase / oxygenase.

[0015]

[0016] The above figure is a simplified schematic diagram of the synthesis of triglycerides (TG) by Chlorella. It starts with triphosphoglycerate (3-PGA) generated by the dark reaction of Chlorella, and then reacts with acyl-CoA to generate lysophosphatidic acid (Lyso-PA) under the action of glycerol triphosphate acyltransferase (GPAT); Lyso-PA is esterified by lysophosphatidic acid acyltransferase (LPAAT) to generate the central metabolite phosphatidic acid (PA); PA is dephosphorylated by phosphatidic acid phosphatase (PAP) to generate DAG; DAG is esterified by diacylglycerol acyltransferase (DGAT) to generate triglycerides.

[0017] During the cultivation process, the main factors affecting the growth and reproduction of Chlorella are: CO2, light, temperature, pH, etc. The application scenario of the reaction device is set near the indoor window, which basically meets the temperature conditions for the growth of Chlorella, and can meet the cultivation and light requirements of Chlorella in sunny or cloudy days. After the pH of the culture solution is adjusted, it is within the optimal pH range of Chlorella, and no regulation is required during the cultivation process. In summary, the reaction device mainly needs to control the CO2 influencing factor. After different concentrations of CO2 are introduced into the leaves, the lag period of Chlorella growth is not much different, but the exponential growth period will vary greatly due to different CO2 concentrations: after the air is introduced, the exponential growth period of ordinary Chlorella is only 3d (2~5d), and then enters the plateau period. The introduction of high concentrations of CO2 will cause the exponential growth period of ordinary Chlorella to be extended. When the reproduction of Chlorella reaches the decline period, the reproduction rate will drop significantly. At this time, the TG content in Chlorella reaches its peak, and the Chlorella can be taken out to continue to cultivate the next cycle. Adjust according to different climatic conditions and light time, and set the appropriate cultivation cycle based on the color and turbidity of the liquid in the leaves.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the reaction device has a simple structure and is easy to operate. The shutter space is used to provide growth space for Chlorella, which greatly saves building space. It relies on the photosynthesis of Chlorella to absorb indoor CO2, achieves biological carbon fixation, purifies the air, and brings good comfort, promoting human physical and mental health. The Chlorella accumulated after cultivation is different from general algae, is rich in triglycerides, and can be prepared into eco-friendly biodiesel, which is expected to replace fossil energy and save energy and protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a photobiological reaction device according to a preferred embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of a blade in a preferred embodiment of the utility model;

[0021] Description of Figure Numbers:

[0022] 1. Shutter mechanism, 11. Window frame, 12. Blades, 13. Liquid inlet, 14. Ventilation port,

[0023] 2. Driving mechanism, 21. Swing motor, 22. Rack, 23. Gear,

[0024] 3. Reaction system, 31. Liquid container, 32. Peristaltic pump, 33. Connecting pipe, 34. Blower, 35. Liquid collecting container, 36. Regulating valve, 37. Gas collecting valve. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 and Figure 2 As shown, a photobiological reaction device provided in this embodiment includes: a shutter mechanism 1 , a driving mechanism 2 and a reaction system 3 .

[0028] The shutter mechanism 1 includes a window frame 11 and a plurality of blades 12. The upper and lower ends of the plurality of blades 12 arranged in parallel are rotatably mounted on the window frame 11 through copper sleeves or bearings respectively. The blades 12 are transparent hollow structures. In this embodiment, organic glass is used. Organic glass has the advantages of good light transmittance, easy processing, stable chemical properties, beautiful appearance, good tightness, etc., which can meet the indoor comfort requirements of Chlorella while photosynthesis; and a liquid inlet 13 is provided at the lower end of the blade 12, and a vent 14 is provided at the upper end.

[0029] like Figure 2As shown, the blade 12 can be curved to one side. In this embodiment, each blade 12 is equivalent to a photobioreactor for culturing Chlorella. In order to ensure good indoor comfort under sunlight, that is, the indoor daylight level is not affected after the shutters are installed, and at the same time, the growth rate of Chlorella is maximized; firstly, considering that a sufficiently large illumination area is required to promote the growth of Chlorella, the shape of the side facing the light on the cross-section of the shutter blade 12 is set to a curve with a larger convexity, and the side facing the indoor backlight is set to a curve with a smaller convexity; secondly, considering the indoor comfort and the shape design of ordinary shutters, the convexity on the illuminated side of the shutter blade 12 is set at a position deviating from the center of the blade 12 so as to achieve ventilation and lighting effects when the blade 12 is opened, and it is convenient for production and installation.

[0030] Considering production cost and efficiency, the thickness of the blinds can be greater than 4mm. Secondly, considering that the organic glass has a certain thickness, there is a certain overlap space at the interface of the leaf surfaces on both sides. Setting the minimum distance between adjacent blinds to 50mm can achieve a complete sunshade effect, while avoiding problems such as obstructed indoor vision and insufficient sunlight caused by too small a distance. In this embodiment, 2mm thick organic glass is used, and the size of each blade 12 is designed to be 5cm wide and 1.2m long. The whole is applied to a window with a height of 1m and a width of 1.2m. The number of blades 12 is set according to actual needs and application scenarios.

[0031] like Figure 1 As shown, the driving mechanism 2 drives and connects multiple blades 12, driving the blades 12 to rotate on the window frame 11; the driving mechanism 2 includes a swing motor 21, a rack 22 and multiple gears 23, and the multiple gears 23 are installed one by one at the upper ends of the multiple blades 12. The rack 22 is installed on the window frame 11 along its length direction and meshes with the multiple gears 23. The output end of the swing motor 21 is connected to one end of the rack 22 to drive the rack 22 to move back and forth. Start the motor to drive the rack 22 to move back and forth left and right, thereby driving the gear 23 to rotate, and then the multiple blades 12 rotate accordingly to adjust the angle.

[0032] At the same time, the reaction system 3 includes a liquid container 31, a peristaltic pump 32, a connecting pipe 33, a blower 34 and a liquid collecting container 35. The connecting pipe 33 is respectively connected to the liquid inlets 13 at the lower ends of the plurality of blades 12. The liquid outlet end of the liquid container 31 containing water and Chlorella is connected to the liquid inlet end of the connecting pipe 33 through the peristaltic pump 32, the air outlet end of the blower 34 is connected to the air inlet end of the connecting pipe 33, and the liquid outlet end of the connecting pipe 33 is connected to the liquid collecting container 35.

[0033] A regulating valve 36 for regulating gas flux is provided at the connection between each blade 12 and the connecting pipe 33 , and a gas collecting valve 37 is provided between the connection between the connecting pipe 33 and the liquid collecting container 35 .

[0034] In actual use, firstly, water and chlorella in a ratio of 9:1 are added to the liquid container 31, and stirred evenly. After setting the liquid inlet flow rate of the peristaltic pump 32, the switch is turned on, and the water and chlorella are evenly sent into each blade 12 through the connecting pipe 33 until the required height is filled, and the feeding is completed. Normally, from 6:00 to 18:00 every day, the blower 34 switch is turned on, and air with a CO2 content of 0.04% to 0.07% is sent into the blade 12; in order to prevent the liquid from flowing down during ventilation, a small bubble stone commonly found in fish tanks can be selected and fixed at the bottom of the blade 12. Due to its porous structure, the bubble stone can convert the air introduced by the blower 34 into smaller bubbles, so that the CO2 in the air can fully react with the chlorella. During the day, under the conditions of suitable light intensity, CO2 concentration, temperature and pH value, the chlorella performs photosynthesis in the blades 12, absorbs CO2 and releases O2, and the gas returns to the atmosphere through the vent 14 above the blades 12. At the same time, organic matter such as triglyceride (TG) is synthesized in the blades 12, which is the raw material for preparing biomass fuel. After about a week, the chlorella is fully accumulated, and the chlorella at the end of the growth period can be taken out for use. At this time, the blower 34 switch is turned off, and all the products in the blades 12 are sent to the liquid collection container 35 through the connecting pipe 33, and are collected and used after filtration; during the recycling process, the blower 34 can be connected to the liquid inlet end of the connecting pipe 33, and the air can be sent to avoid the blockage of the connecting pipe 33.

[0035] The reaction device has a simple structure and is easy to operate. It uses the space of the shutters to provide growth space for Chlorella, which greatly saves building space. It relies on the photosynthesis of Chlorella to absorb indoor CO2, achieve biological carbon fixation, purify the air, and bring good comfort, promoting human physical and mental health. The Chlorella accumulated after cultivation is different from general algae and is rich in triglycerides. It can be prepared into eco-friendly biodiesel, which is expected to replace fossil energy and save energy and protect the environment.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A photobiological reaction device, characterized in that: include: A shutter mechanism, a driving mechanism and a reaction system; the shutter mechanism comprises a window frame and a plurality of blades, wherein the upper and lower ends of the plurality of blades arranged in parallel are rotatably mounted on the window frame respectively, and the blades are transparent hollow structures, and a liquid inlet is provided at the lower end, and an air vent is provided at the upper end; the driving mechanism drives and connects the plurality of blades, and drives the blades to rotate on the window frame; the reaction system comprises a liquid container, a peristaltic pump, a connecting pipe, a blower and a liquid collecting container, wherein the connecting pipe is respectively connected to the liquid inlets at the lower ends of the plurality of blades, the liquid outlet end of the liquid container containing water and Chlorella is connected to the liquid inlet end of the connecting pipe through the peristaltic pump, the air outlet end of the blower is connected to the air inlet end of the connecting pipe, and the liquid outlet end of the connecting pipe is connected to the liquid collecting container.

2. The photobioreactor device as claimed in claim 1, characterized in that: The blade is in an arc shape that bends to one side.

3. The photobioreactor device as claimed in claim 1, characterized in that: The driving mechanism includes a swing motor, a rack and multiple gears. The multiple gears are installed one by one at the upper ends of the multiple blades. The rack is installed on the window frame along its length direction and meshes with the multiple gears. The output end of the swing motor is connected to one end of the rack to drive the rack to move back and forth.

4. The photobioreactor device as claimed in claim 1, characterized in that: A regulating valve for regulating gas flux is provided at the connection between each blade and the connecting pipe.

5. The photobioreactor device as claimed in claim 1, characterized in that: A gas collecting valve is provided between the connection of the connecting pipe and the liquid collecting container.

6. The photobioreactor device as claimed in claim 1, characterized in that: The upper and lower ends of the blade are rotatably mounted on the window frame through copper sleeves or bearings.

7. The photobioreactor device as claimed in claim 1, characterized in that: The blades are made of plexiglass.

8. The photobioreactor device as claimed in claim 1, characterized in that: The light-facing side and the light-back side of the blade are both curves that are convex toward the light direction.

9. The photobioreactor device as claimed in claim 8, characterized in that: The curved convex portion of the blade facing the light side is offset from the center of the blade.

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