Algae culture device of flue gas treatment device

Abstract

The invention provides an algae culture device of a flue gas treatment device, comprising: an absorption tower in which a filler layer is arranged; the first liquid outlet is connected with the second liquid inlet through a first connecting pipeline, and the second liquid outlet is connected with the first liquid inlet through a second connecting pipeline; the liquid storage tank is provided with a third liquid inlet, a third liquid outlet and an algae seed adding port, and the third liquid inlet is connected to the first connecting pipeline; the photobioreactor is provided with an air inlet, an air outlet, a fourth liquid inlet and a fourth liquid outlet, the fourth liquid inlet is connected with the third liquid outlet, a culture unit is arranged in the photobioreactor, and the culture unit is connected between the fourth liquid inlet and the fourth liquid outlet; and the fourth liquid outlet is connected to the second connecting pipeline through a third connecting pipeline. According to the technical scheme, the problem that the material cost of the absorption tower is increased due to the fact that new algae filler which is independently purchased from the outside is replaced in the prior art is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of carbon dioxide capture, and in particular to an algae cultivation device of a flue gas treatment device. Background Art

[0002] In the related art, the packing layer in the absorption tower provides a larger surface area, so that the gas (such as carbon dioxide) and the liquid (such as the absorption liquid) have more sufficient contact. This increased contact area helps to improve the absorption efficiency of the gas. The packing in the packing layer can promote the mass transfer process between the gas and the liquid.

[0003] In some applications, the packing layer can be used as a carrier for algae fillers. These algae fillers capture carbon dioxide through photosynthesis, and the packing layer provides them with space to grow and attach. The algae fillers will gradually age and die in the process of capturing carbon dioxide and need to be replaced regularly. Each replacement of new algae fillers purchased separately from outside not only increases material costs, but also labor and time costs. Summary of the invention

[0004] The main purpose of the present invention is to provide an algae cultivation device for a flue gas treatment device to solve the problem in the related art that the material cost of the absorption tower is increased by replacing new algae fillers purchased separately from the outside.

[0005] In order to achieve the above-mentioned objectives, the present invention provides an algae cultivation device of a flue gas treatment device, comprising: an absorption tower, the absorption tower is provided with a flue gas inlet, a flue gas outlet, a first liquid inlet and a first liquid outlet, and a packing layer is provided in the absorption tower; a regeneration tower, the regeneration tower is provided with a second liquid inlet, a second liquid outlet and a carbon dioxide outlet, the first liquid outlet is connected to the second liquid inlet through a first connecting pipeline, and the second liquid outlet is connected to the first liquid inlet through a second connecting pipeline; a liquid storage tank, the liquid storage tank is provided with a third liquid inlet, a third liquid outlet and an algae seed addition port, and the third liquid inlet is connected to the first connecting pipeline; a photobioreactor, the photobioreactor is provided with an air inlet, an air outlet, a fourth liquid inlet and a fourth liquid outlet, the fourth liquid inlet is connected to the third liquid outlet, a cultivation unit is provided in the photobioreactor, the cultivation unit is connected between the fourth liquid inlet and the fourth liquid outlet, and the fourth liquid outlet is connected to the second connecting pipeline through the third connecting pipeline.

[0006] Furthermore, the culture unit includes a culture chamber and a uniformly distributed member arranged in the culture chamber.

[0007] Furthermore, the culture unit also includes an air pump arranged in the culture chamber, and the air pump is connected between the fourth liquid inlet and the fourth liquid outlet.

[0008] Further, the fourth liquid inlet is connected to the third liquid outlet via a fourth connecting pipeline, and the third connecting pipeline is connected to the fourth connecting pipeline via a fifth connecting pipeline.

[0009] Furthermore, a filter is provided on the fourth connecting pipeline.

[0010] Furthermore, a first pump body is arranged on the fourth connecting pipeline, and a second pump body is arranged on the third connecting pipeline.

[0011] Furthermore, there are multiple culture units, which are arranged at intervals, and the inlet of each culture unit is connected to the fourth liquid inlet, and the outlet of each culture unit is connected to the fourth liquid outlet.

[0012] Furthermore, the algae cultivation device of the flue gas treatment device also includes a separation and collection device, which is provided with a fifth liquid inlet, a fifth liquid outlet, a gas outlet and a collection port, the fifth liquid inlet is connected to the fourth liquid inlet, and the fifth liquid outlet is connected to the third connecting pipeline through a sixth connecting pipeline.

[0013] Furthermore, a third pump body is arranged on the sixth connecting pipeline.

[0014] Furthermore, a heat exchanger is provided on the first connecting pipeline and the second connecting pipeline.

[0015] According to the technical solution of the present invention, the algae cultivation device of the flue gas treatment device includes: an absorption tower, a regeneration tower, a liquid storage tank and a photobioreactor. The absorption tower is provided with a flue gas inlet, a flue gas outlet, a first liquid inlet and a first liquid outlet, and a packing layer is provided in the absorption tower. The regeneration tower is provided with a second liquid inlet, a second liquid outlet and a carbon dioxide outlet, the first liquid outlet is connected to the second liquid inlet through a first connecting pipeline, and the second liquid outlet is connected to the first liquid inlet through a second connecting pipeline. The liquid storage tank is provided with a third liquid inlet, a third liquid outlet and an algae seed addition port. The third liquid inlet is connected to the first connecting pipeline. The photobioreactor is provided with an air inlet, an air outlet, a fourth liquid inlet and a fourth liquid outlet, the fourth liquid inlet is connected to the third liquid outlet, a cultivation unit is provided in the photobioreactor, the cultivation unit is connected between the fourth liquid inlet and the fourth liquid outlet, and the fourth liquid outlet is connected to the second connecting pipeline through the third connecting pipeline. The liquid storage tank stores the solution containing carbon dioxide flowing out from the first liquid inlet, and the algae seeds can be added to the liquid storage tank from the algae seed addition port. The algae seeds and the solution containing carbon dioxide are mixed together to form an algae culture solution, and the algae culture solution enters the culture unit from the fourth liquid inlet. The photobioreactor uses light and carbon dioxide to cultivate the growth of algae, and the grown algae can be discharged from the fourth liquid outlet. In this way, when it is necessary to replace new algae fillers regularly, the algae cultivated by the algae cultivation device of the flue gas treatment device can be directly added to the filler layer in the absorption tower through the second connecting pipeline, without the need to replace new algae fillers purchased separately from the outside, which not only reduces the material cost, but also reduces the labor and time cost. Therefore, the technical solution of the present application effectively solves the problem of replacing new algae fillers purchased separately from the outside in the related art, which increases the material cost of the absorption tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A piping connection diagram of an embodiment of an algae cultivation device of a flue gas treatment device according to the present invention is shown.

[0018] The above drawings include the following reference numerals:

[0019] 10. Absorption tower; 11. Flue gas inlet; 12. Flue gas outlet; 13. First liquid inlet; 14. First liquid outlet; 15. Packing layer;

[0020] 20. Regeneration tower; 21. Second liquid inlet; 22. Second liquid outlet; 23. Carbon dioxide gas outlet;

[0021] 31. first connecting pipeline; 32. second connecting pipeline; 33. third connecting pipeline; 34. fourth connecting pipeline; 35. fifth connecting pipeline; 36. sixth connecting pipeline;

[0022] 40. Liquid storage tank; 41. Third liquid inlet; 42. Third liquid outlet; 43. Algae seed addition port;

[0023] 50. Photobioreactor; 51. Air inlet; 52. Air outlet; 53. Fourth liquid inlet; 54. Fourth liquid outlet; 55. Culture chamber; 56. Uniform distribution member; 57. Air pump;

[0024] 61. filter; 62. first pump body; 63. second pump body; 64. third pump body; 65. heat exchanger;

[0025] 70. Separation and collection device; 71. Fifth liquid inlet; 72. Fifth liquid outlet; 73. Gas outlet; 74. Collection port. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] like Figure 1 As shown, the present application provides an algae cultivation device of a flue gas treatment device, and an embodiment of the algae cultivation device of the flue gas treatment device includes: an absorption tower 10, a regeneration tower 20, a liquid storage tank 40 and a photobioreactor 50. The absorption tower 10 is provided with a flue gas inlet 11, a flue gas outlet 12, a first liquid inlet 13 and a first liquid outlet 14, and a packing layer 15 is provided in the absorption tower 10. The regeneration tower 20 is provided with a second liquid inlet 21, a second liquid outlet 22 and a carbon dioxide gas outlet 23, the first liquid outlet 14 is connected to the second liquid inlet 21 through a first connecting pipeline 31, and the second liquid outlet 22 is connected to the first liquid inlet 13 through a second connecting pipeline 32. The liquid storage tank 40 is provided with a third liquid inlet 41, a third liquid outlet 42 and an algae seed addition port 43. The third liquid inlet 41 is connected to the first connecting pipeline 31. The photobioreactor 50 is provided with an air inlet 51, an air outlet 52, a fourth liquid inlet 53 and a fourth liquid outlet 54. The fourth liquid inlet 53 is connected to the third liquid outlet 42. A culture unit is provided in the photobioreactor 50. The culture unit is connected between the fourth liquid inlet 53 and the fourth liquid outlet 54. The fourth liquid outlet 54 is connected to the second connecting pipeline 32 through the third connecting pipeline 33.

[0030] By applying the technical solution of this embodiment, the liquid storage tank 40 stores the solution containing carbon dioxide flowing out from the first liquid inlet 13, and the algae seeds can be added to the liquid storage tank 40 from the algae seed addition port 43. The algae seeds and the solution containing carbon dioxide are mixed together to form an algae culture solution, and the algae culture solution enters the culture unit from the fourth liquid inlet 53. The photobioreactor 50 uses light and carbon dioxide to cultivate the growth of algae, and the grown algae can be discharged from the fourth liquid outlet 54. In this way, when it is necessary to regularly replace new algae fillers, the algae cultivated by the algae cultivation device of the flue gas treatment device can be directly added to the filler layer 15 in the absorption tower 10 through the second connecting pipeline 32, without the need to replace new algae fillers purchased separately from the outside, which not only reduces the material cost, but also reduces the labor and time cost. Therefore, the technical solution of this embodiment effectively solves the problem of replacing new algae fillers purchased separately from the outside in the related art, which increases the material cost of the absorption tower.

[0031] like Figure 1 As shown, the culture unit includes a culture chamber 55 and a uniform distribution member 56 disposed in the culture chamber 55. The algae species grow in the culture chamber 55 using light and carbon dioxide. The uniform distribution member 56 is evenly distributed in the culture chamber 55 to ensure that the algae have sufficient growth space. The light intensity is controlled at 8 μmol / m 2 ·s to 100 μmol / m 2 s, ensuring that algae can photosynthesize effectively.

[0032] like Figure 1 As shown, the culture unit further includes an air pump 57 disposed in the culture chamber 55, and the air pump 57 is connected between the fourth liquid inlet 53 and the fourth liquid outlet 54. The air pump 57 can generate tiny bubbles to fully dissolve carbon dioxide in the culture chamber 55, thereby increasing the dissolution rate of carbon dioxide.

[0033] like Figure 1 As shown, the fourth liquid inlet 53 is connected to the third liquid outlet 42 through the fourth connecting pipeline 34, and the third connecting pipeline 33 is connected to the fourth connecting pipeline 34 through the fifth connecting pipeline 35. The fifth connecting pipeline 35 is connected to the fourth connecting pipeline 34, so that the nutrient solution in the culture chamber 55 circulates in the photobioreactor 50 to ensure that the algae are evenly contacted with the nutrient solution. The fifth connecting pipeline 35 is connected to the fourth connecting pipeline 34 through a control valve.

[0034] like Figure 1 As shown, in order to prevent algae and other particles from clogging the fourth connecting pipe 34 , a filter 61 is provided on the fourth connecting pipe 34 .

[0035] like Figure 1As shown, the fourth connecting pipeline 34 is provided with a first pump body 62, which can provide kinetic energy for the liquid flowing through the fourth connecting pipeline 34, and the third connecting pipeline 33 is provided with a second pump body 63. The second pump body 63 can provide kinetic energy for the liquid flowing through the third connecting pipeline 33.

[0036] like Figure 1 As shown, in order to improve the efficiency of cultivating algae fillers, there are multiple cultivation units, and the multiple cultivation units are arranged at intervals. The inlet of each cultivation unit is connected to the fourth liquid inlet 53, and the outlet of each cultivation unit is connected to the fourth liquid outlet 54.

[0037] like Figure 1 As shown, the algae cultivation device of the flue gas treatment device also includes a separation and collection device 70. The separation and collection device 70 is provided with a fifth liquid inlet 71, a fifth liquid outlet 72, a gas outlet 73 and a collection port 74. The collection port 74 is convenient for further collecting algae so as to sell the collected excess algae, which can reduce costs and increase profits. The fifth liquid inlet 71 is connected to the fourth liquid inlet 53, and the fifth liquid outlet 72 is connected to the third connecting pipeline 33 through the sixth connecting pipeline 36. The liquid separated by the separation and collection device 70 can enter the third connecting pipeline 33 again through the sixth connecting pipeline 36, and then be replenished to the absorption tower 10 through the second connecting pipeline 32. The fifth liquid inlet 71 is connected to the fourth liquid inlet 53 through a control valve.

[0038] like Figure 1 As shown, a third pump body 64 is disposed on the sixth connecting pipeline 36. The third pump body 64 can provide kinetic energy for the liquid flowing through the sixth connecting pipeline 36.

[0039] like Figure 1 As shown, a heat exchanger 65 is disposed on the first connecting pipeline 31 and the second connecting pipeline 32. The heat exchanger 65 can perform heat exchange between the liquid flowing through the first connecting pipeline 31 and the liquid flowing through the second connecting pipeline 32.

[0040] In one aspect of the present application, an algae cultivation device of a flue gas treatment device is provided, comprising an absorption tower 10, on which a flue gas inlet 11, a flue gas outlet 12, a first liquid inlet 13 and a first liquid outlet 14 are provided, and a packing layer 15 is provided in the absorption tower 10; a regeneration tower 20, on which a second liquid inlet 21, a second liquid outlet 22 and a carbon dioxide gas outlet 23 are provided, the first liquid outlet 14 is connected to the second liquid inlet 21 through a first connecting pipeline 31, and the second liquid outlet 22 is connected to the first liquid inlet 13 through a second connecting pipeline 32; a liquid storage tank 40, which The liquid storage tank 40 is provided with a third liquid inlet 41, a third liquid outlet 42 and an algae seed addition port 43, and the third liquid inlet 41 is connected to the first connecting pipeline 31; the photobioreactor 50 is provided with an air inlet 51, an air outlet 52, a fourth liquid inlet 53 and a fourth liquid outlet 54, and the fourth liquid inlet 53 is connected to the third liquid outlet 42. A culture unit is provided in the photobioreactor 50, and the culture unit is connected between the fourth liquid inlet 53 and the fourth liquid outlet 54, and the fourth liquid outlet 54 is connected to the second connecting pipeline 32 through the third connecting pipeline 33. This design realizes the recycling of carbon dioxide in flue gas through the efficient cooperation of the absorption tower and the regeneration tower, which not only reduces the emission of carbon dioxide, but also provides sufficient carbon source for the growth of algae. In industrial flue gas treatment scenarios such as thermal power plants and cement plants, the effective implementation of this solution not only reduces carbon emissions and promotes the development of environmental protection, but also generates a series of economic benefits through the growth of algae, such as the production of algae biomass energy, which further improves resource utilization efficiency and demonstrates its wide application potential and economic value in the field of industrial flue gas treatment.

[0041] In one embodiment of the present application, the culture unit includes a culture chamber 55 and a uniform distribution member 56 disposed in the culture chamber 55. By disposing the uniform distribution member, the uniform distribution of the algae liquid in the culture chamber can be ensured, the photosynthesis efficiency of the algae is improved, and thus the growth rate of the algae and the flue gas treatment efficiency are improved. For environments with uneven lighting, such as indoor or semi-outdoor photobioreactors, the use of the uniform distribution member ensures the stable growth of the algae, avoids slow growth or death caused by uneven light distribution, increases the growth density of the algae, and thus improves the overall processing capacity of the flue gas treatment device, so that it can maintain efficient operation under different lighting conditions, and enhances the adaptability and stability of the device.

[0042] In one embodiment of the present application, the culture unit further includes an air pump 57 disposed in the culture chamber 55, and the air pump 57 is connected between the fourth liquid inlet 53 and the fourth liquid outlet 54. The provision of the air pump can increase the oxygen content in the culture chamber, promote the growth of algae, and accelerate the circulation of the algae liquid, thereby improving the processing efficiency of the algae liquid. For scenarios where algae growth requires a large amount of oxygen, such as high-density algae culture, the use of an air pump significantly increases the growth rate of algae and the flue gas treatment efficiency, while also reducing the energy consumption during the algae culture process, thereby achieving efficient and energy-saving algae culture and flue gas treatment, and providing a more economical and environmentally friendly solution for industrial flue gas treatment and environmental protection.

[0043] In one embodiment of the present application, the fourth liquid inlet 53 is connected to the third liquid outlet 42 through the fourth connecting pipeline 34, and the third connecting pipeline 33 is connected to the fourth connecting pipeline 34 through the fifth connecting pipeline 35. This connection method can ensure the continuous circulation of the algae liquid and improve the treatment efficiency of the algae liquid. For scenarios where continuous flue gas treatment is required, such as continuously operated industrial flue gas treatment devices, the continuous circulation of the algae liquid ensures the continuity and efficiency of flue gas treatment, avoids the decline in treatment effect caused by the interruption of the algae liquid circulation, improves the stability and reliability of the device, enables it to maintain efficient treatment under continuous operation conditions, and enhances the practicality and competitiveness of the flue gas treatment device.

[0044] In one embodiment of the present application, a filter 61 is provided on the fourth connecting pipeline 34. The setting of the filter can remove impurities in the algae liquid, ensure the purity of the algae liquid, and improve the growth efficiency of the algae. During the circulation of the algae liquid, maintaining the purity of the algae liquid is crucial for the healthy growth of the algae. Through the setting of the filter, impurities in the algae liquid, such as microorganisms, particulate matter, etc., can be effectively removed, avoiding the negative impact of these impurities on the growth of algae, and improving the growth rate of the algae and the flue gas treatment efficiency. It is suitable for scenarios with high requirements for the purity of the algae liquid in the algae liquid circulation system, such as the production process of algae biomass energy, ensuring the healthy growth of algae and the production of high-quality biomass energy.

[0045] In one embodiment of the present application, a first pump body 62 is provided on the fourth connecting pipeline 34, and a second pump body 63 is provided on the third connecting pipeline 33. The setting of the pump body can provide power for the circulation of the algae liquid, ensure the continuous circulation of the algae liquid, and improve the treatment efficiency of the algae liquid. For scenarios where circulation power needs to be provided, such as an algae liquid circulation system, the use of the pump body ensures the continuous circulation of the algae liquid and the efficiency of flue gas treatment, avoids the decline in treatment effect due to insufficient algae liquid circulation power, improves the operating stability and treatment efficiency of the algae liquid circulation system, enables it to maintain efficient treatment under high-load operating conditions, enhances the practicality and competitiveness of the algae cultivation device, and provides a more stable and efficient solution for industrial flue gas treatment.

[0046] In one embodiment of the present application, there are multiple culture units, and the multiple culture units are arranged at intervals, the inlet of each culture unit is connected to the fourth liquid inlet 53, and the outlet of each culture unit is connected to the fourth liquid outlet 54. Providing multiple culture units can further improve the growth efficiency of algae, which is suitable for scenarios where large-scale algae cultivation is required. In large-scale flue gas treatment devices, by providing multiple culture units, the growth rate of algae and the flue gas treatment efficiency can be significantly improved, while also reducing the energy consumption during algae cultivation, achieving efficient and energy-saving algae cultivation and flue gas treatment, and providing a more economical and environmentally friendly solution for industrial flue gas treatment and environmental protection, demonstrating its wide application potential and economic value in the field of flue gas treatment.

[0047] In one embodiment of the present application, the algae cultivation device of the flue gas treatment device further includes a separation and collection device 70, on which a fifth liquid inlet 71, a fifth liquid outlet 72, a gas outlet 73 and a collection port 74 are provided, the fifth liquid inlet 71 is connected to the fourth liquid inlet 53, and the fifth liquid outlet 72 is connected to the third connecting pipeline 33 through the sixth connecting pipeline 36. The setting of the separation and collection device can separate the algae and liquid in the algae liquid, which is convenient for the collection and reuse of the algae, and at the same time, the gas can be discharged, thereby improving the treatment efficiency of the algae liquid. In the production process of algae biomass energy, the efficient collection and reuse of algae is a key link. Through the setting of the separation and collection device, the automatic collection of algae and the effective discharge of gas can be realized, the collection efficiency and reuse rate of algae can be improved, and the energy consumption in the algae collection process can also be reduced, and efficient and energy-saving algae collection and flue gas treatment can be realized, which provides a more economical and environmentally friendly solution for industrial flue gas treatment and environmental protection, and demonstrates its wide application potential and economic value in the field of flue gas treatment.

[0048] In one embodiment of the present application, a third pump body 64 is provided on the sixth connecting pipeline 36. The provision of the third pump body can provide power for the algae liquid from the separation and collection device to the photobioreactor, ensure the continuous circulation of the algae liquid, and improve the treatment efficiency of the algae liquid. In the algae liquid circulation system, the continuous circulation of the algae liquid is the key to ensuring the growth of algae and the flue gas treatment effect. Through the provision of the third pump body, power can be provided for the circulation of the algae liquid, ensuring the continuous circulation of the algae liquid, improving the treatment efficiency of the algae liquid, and also reducing the energy consumption during the circulation of the algae liquid, realizing efficient and energy-saving algae liquid circulation and flue gas treatment, providing a more economical and environmentally friendly solution for industrial flue gas treatment and environmental protection, and demonstrating its wide application potential and economic value in the field of flue gas treatment.

[0049] In one embodiment of the present application, a heat exchanger 65 is provided on the first connecting pipeline 31 and the second connecting pipeline 32. The setting of the heat exchanger can adjust the temperature of the algae liquid, ensure that the algae liquid circulates at a suitable temperature, and improve the growth efficiency of the algae. For scenarios where the temperature of the algae liquid needs to be adjusted, such as flue gas treatment devices in different seasons or different regions, the use of a heat exchanger can ensure that the algae liquid circulates at a suitable temperature, avoiding the growth of algae caused by excessively high or low temperatures. The growth rate of algae and the flue gas treatment efficiency are improved, while also reducing the energy consumption during the circulation of the algae liquid, achieving efficient and energy-saving algae liquid circulation and flue gas treatment, and providing a more economical and environmentally friendly solution for industrial flue gas treatment and environmental protection, demonstrating its wide application potential and economic value in the field of flue gas treatment.

[0050] This solution achieves efficient absorption and regeneration of carbon dioxide in flue gas by allowing algae to absorb carbon dioxide in the absorption tower and then releasing carbon dioxide in the regeneration tower. At the same time, the algae are cultured using a photobioreactor to improve the growth efficiency of algae, thereby improving the flue gas treatment efficiency. By setting a liquid storage tank, algae liquid can be stored, which is convenient for the recycling of algae liquid. At the same time, by setting a filter and a pump body, the purity and circulation power of the algae liquid are guaranteed, and the circulation efficiency of the algae liquid is improved. In addition, by setting multiple culture units, the growth efficiency of algae can be further improved. By setting a separation and collection device, the algae and liquid in the algae liquid can be separated, which is convenient for the collection and reuse of algae. At the same time, the gas can be discharged, and the treatment efficiency of the algae liquid is improved. This device has a simple structure, is easy to operate, has a good treatment effect, and has a wide range of application prospects. In practical applications, this solution can effectively reduce carbon dioxide emissions in industrial flue gas, and can also generate biomass energy through the growth of algae, achieving the dual benefits of flue gas treatment and energy production, providing a new solution for industrial flue gas treatment, and has important environmental and economic value. At the same time, by optimizing the design and layout of each component, the processing efficiency and stability of the algae cultivation device can be further improved, and it is suitable for flue gas treatment scenarios of different scales and types, such as small factories, large power stations, etc., showing its wide application potential and economic value in the field of flue gas treatment. This efficient and economical flue gas treatment method can not only meet the requirements of environmental protection regulations and reduce the impact of industrial activities on the environment, but also provide a renewable energy source for industrial activities through the production of biomass energy, reducing dependence on fossil energy, and showing its great potential and value in promoting sustainable industrial development.

[0051] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An algae cultivation device for a flue gas treatment device, characterized in that: include: An absorption tower (10), wherein the absorption tower (10) is provided with a smoke inlet (11), a smoke outlet (12), a first liquid inlet (13) and a first liquid outlet (14), and a packing layer (15) is provided in the absorption tower (10); A regeneration tower (20), wherein the regeneration tower (20) is provided with a second liquid inlet (21), a second liquid outlet (22) and a carbon dioxide gas outlet (23), the first liquid outlet (14) and the second liquid inlet (21) are connected via a first connecting pipeline (31), and the second liquid outlet (22) and the first liquid inlet (13) are connected via a second connecting pipeline (32); A liquid storage tank (40), wherein the liquid storage tank (40) is provided with a third liquid inlet (41), a third liquid outlet (42) and an algae seed addition port (43), and the third liquid inlet (41) is connected to the first connecting pipeline (31); A photobioreactor (50), wherein the photobioreactor (50) is provided with an air inlet (51), an air outlet (52), a fourth liquid inlet (53) and a fourth liquid outlet (54), wherein the fourth liquid inlet (53) is connected to the third liquid outlet (42), wherein a culture unit is provided in the photobioreactor (50), wherein the culture unit is connected between the fourth liquid inlet (53) and the fourth liquid outlet (54), and wherein the fourth liquid outlet (54) is connected to the second connecting pipeline (32) via a third connecting pipeline (33).

2. The algae cultivation device of the flue gas treatment device according to claim 1, characterized in that: The culture unit comprises a culture chamber (55) and a uniformly distributed member (56) arranged in the culture chamber (55).

3. The algae cultivation device of the flue gas treatment device according to claim 2, characterized in that: The culture unit further comprises an air pump (57) disposed in the culture chamber (55), and the air pump (57) is connected between the fourth liquid inlet (53) and the fourth liquid outlet (54).

4. The algae cultivation device of the flue gas treatment device according to claim 1, characterized in that: The fourth liquid inlet (53) is connected to the third liquid outlet (42) via a fourth connecting pipeline (34), and the third connecting pipeline (33) is connected to the fourth connecting pipeline (34) via a fifth connecting pipeline (35).

5. The algae cultivation device of the flue gas treatment device according to claim 4, characterized in that: The fourth connecting pipeline (34) is provided with a filter (61).

6. The algae cultivation device of the flue gas treatment device according to claim 4, characterized in that: The fourth connecting pipeline (34) is provided with a first pump body (62), and the third connecting pipeline (33) is provided with a second pump body (63).

7. The algae cultivation device of the flue gas treatment device according to claim 1, characterized in that: There are a plurality of culture units, which are arranged at intervals, and the inlet of each culture unit is connected to the fourth liquid inlet (53), and the outlet of each culture unit is connected to the fourth liquid outlet (54).

8. The algae cultivation device of the flue gas treatment device according to claim 1, characterized in that: The algae cultivation device of the flue gas treatment device also includes a separation and collection device (70), and the separation and collection device (70) is provided with a fifth liquid inlet (71), a fifth liquid outlet (72), a gas outlet (73) and a collection port (74), the fifth liquid inlet (71) is connected to the fourth liquid inlet (53), and the fifth liquid outlet (72) is connected to the third connecting pipeline (33) via a sixth connecting pipeline (36).

9. The algae cultivation device of the flue gas treatment device according to claim 8, characterized in that: The sixth connecting pipeline (36) is provided with a third pump body (64).

10. The algae cultivation device of the flue gas treatment device according to claim 8, characterized in that: Heat exchangers (65) are provided on the first connecting pipeline (31) and the second connecting pipeline (32).

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