Environment-friendly microalgae cultivation pond

Abstract

This invention discloses an environmentally friendly microalgae cultivation pond, belonging to the field of microalgae cultivation technology. It includes a pond body with a dividing chamber in the middle. The bottom of the dividing chamber is fixedly connected to the inner wall of the pond body. A drive mechanism for driving the internal circulation of the pond body is provided on the side wall of the pond body. A light guide mechanism for guiding light into the bottom layer of the water flow within the dividing chamber is provided inside the dividing chamber. Cleaning mechanisms are provided on both sides of the dividing chamber for cleaning the output end of the light guide mechanism and are driven by the drive mechanism. This invention effectively solves the problem of insufficient light at the bottom layer of traditional microalgae cultivation ponds due to water depth by guiding external light sources through a light-collecting cover and a light guide tube on the inner wall of the reflective layer. The drive mechanism simultaneously drives an impeller to achieve water circulation, and the cleaning mechanism, linked by a transmission structure, periodically and automatically cleans the diffuse reflective light-transmitting sheet, preventing dirt adhesion from affecting light transmittance.

Description

Technical Field

[0001] This invention relates to an environmentally friendly microalgae cultivation pond, belonging to the field of microalgae cultivation technology. Background Technology

[0002] Microalgae have attracted widespread attention for their large-scale cultivation due to their applications in bioenergy, food, and environmental protection. Microalgae growth depends on photosynthesis, therefore, cultivation equipment needs to provide sufficient light. However, in conventional deep-water aquaculture ponds, as water depth increases, the penetration of natural light decreases, leading to severe light deficiency in the bottom areas of the pond, which restricts microalgae growth and affects overall cultivation efficiency and yield. To solve the problem of insufficient light in deep water, there is an urgent need for a device that can effectively introduce light into the bottom of the aquaculture pond.

[0003] Existing microalgae cultivation ponds typically consist of a tank containing the culture medium, equipped with a stirring or circulation mechanism, airlift pump, etc., to maintain uniform suspension of the microalgae. To improve lighting, some solutions employ artificial light sources directly installed on the side walls or bottom of the tank. These devices are relatively simple in structure, mainly consisting of the tank body, circulation drive components, and basic light-emitting elements. However, the above solution has the following shortcomings in practical use: 1. The artificial light source directly installed in the above-mentioned device has high energy consumption, and although its spectrum is adjustable, it is difficult to completely simulate the full spectrum characteristics of natural light, which may affect the physiological metabolism and product accumulation of microalgae. In addition, the light from the artificial light source decays quickly in the water and is difficult to uniformly cover the deep area.

[0004] 2. The light-transmitting components of the above-mentioned devices are in a nutrient-rich water environment for a long time, and algae or dirt are easily attached to their surfaces. However, existing devices generally do not integrate any automatic cleaning mechanism, which leads to a continuous decline in light transmission performance. Frequent shutdowns for manual maintenance are necessary, which seriously affects the continuity of production and the level of automation. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides an environmentally friendly microalgae cultivation pond, achieving... The technical solution adopted by this invention to solve its technical problem is: An environmentally friendly microalgae cultivation pond includes a pond body, a dividing chamber in the middle of the pond body, the bottom of the dividing chamber being fixedly connected to the inner wall of the pond body, and a driving mechanism for driving the internal circulation of the pond body on the side wall of the pond body. The compartment is equipped with a light guide mechanism to guide light into the bottom layer of the water flow in the pool. Both sides of the segmented compartment are equipped with cleaning mechanisms for cleaning the output end of the light guide mechanism and driven by a drive mechanism.

[0006] Preferably, the drive mechanism includes a bearing housing and a drive motor. The bottom of the bearing housing is fixedly connected to the dividing chamber, a rotating rod is rotatably arranged in the middle of the bearing housing, and an impeller is fixedly connected to the outer periphery of the rotating rod. The side wall of the drive motor is fixedly connected to the surface of the pool body, and the output shaft of the drive motor is fixedly connected to the rotating rod; In this design, after the drive motor starts, its output shaft drives the rotating rod and impeller to rotate synchronously. The rotation of the impeller acts on the liquid in the tank, generating directional thrust and driving the liquid to circulate within the tank, providing the necessary mixing and mass transfer conditions for microalgae growth.

[0007] Preferably, the light guiding mechanism includes a light guide tube, which is bent and has a reflective layer on its inner wall. The light guide tube is disposed inside the dividing chamber, with one end penetrating the dividing chamber and the other end penetrating the side wall of the dividing chamber. The number of light guide tubes is set to multiple, and the bending directions of adjacent light guide tubes are opposite. A light-collecting cover is fixedly connected to one end of the light guide tube, and a diffuse reflection light-transmitting sheet is fixedly connected to the other end of the light guide tube. In this design, the light-collecting hood gathers external light sources. After entering the light guide tube, the light is guided along a curved path by the reflective layer on the inner wall to the diffuse reflection light-transmitting sheet located in the water layer of the pond. The diffuse reflection light-transmitting sheet converts the concentrated light into uniformly scattered light, providing the necessary illumination for photosynthesis of microalgae at the bottom of the pond, thus solving the problem of insufficient light at the bottom of traditional aquaculture ponds due to water depth.

[0008] Preferably, the cleaning mechanism includes a movable rod, and two fixed sleeves are fitted around the outer periphery of the movable rod. The side walls of the two fixed sleeves are fixedly connected to the dividing compartment. The bottom of the movable rod is provided with multiple cleaning structures for cleaning the diffuse reflection light-transmitting sheet. The moving rod is provided with a transmission structure above it for transmitting power to the drive mechanism and driving the moving rod to reciprocate. In this design, the transmission structure transmits part of the power from the drive mechanism to the moving rod, causing it to reciprocate linearly in the horizontal direction under the guidance of the fixed sleeve. The reciprocating motion of the moving rod drives the cleaning structure at its bottom to move synchronously, thereby periodically cleaning the outer surface of the diffuse reflective light-transmitting sheet and preventing algae or dirt from adhering and affecting the light transmission efficiency.

[0009] Preferably, the cleaning structure includes a connecting rod, the top of which is fixedly connected to a movable rod, a cleaning scraper is provided on one side of the connecting rod, and a plurality of guide rods are fixedly connected to the side wall of the cleaning scraper. The plurality of guide rods pass through the connecting rod and are slidably connected to the connecting rod. Each of the guide rods has a limit ring fixedly connected to its end, and each of the guide rods has a compression spring sleeved on its outer periphery. One end of each compression spring abuts against a connecting rod, and the other end of each compression spring abuts against a cleaning scraper. The cleaning scraper is matched with an adjacent diffuse reflective light-transmitting sheet. In this design, the connecting rod, driven by the moving rod, propels the cleaning scraper to reciprocate laterally via multiple guide rods. Simultaneously, a compression spring provides continuous elastic preload, ensuring the cleaning scraper remains in contact with the surface of the light-transmitting sheet. As the cleaning scraper moves back, it effectively removes deposits from the surface of the diffuse-reflective light-transmitting sheet.

[0010] Preferably, the transmission structure includes an installation chamber, the side wall of which is fixedly connected to the dividing chamber, a sliding groove is provided at the bottom of the installation chamber, and the rotating rod passes through the dividing chamber and is rotatably connected to the dividing chamber. The inner sidewall of the installation chamber is rotatably provided with a first gear, the top of the first gear is meshed with a second gear, the top of the second gear is meshed with a toothed ring, the toothed ring is sleeved on the outer periphery of the rotating rod, and the toothed ring is fixedly connected to the rotating rod; A rotating disk is fixedly connected to the side wall of the first gear. An eccentric shaft is rotatably provided on the side wall of the rotating disk. A reciprocating sleeve is sleeved on the outer circumference of the eccentric shaft. A fixed rod is fixedly connected between the bottom of the reciprocating sleeve and the moving rod. In this design, the rotating rod rotates, causing the toothed ring fixed to it to rotate synchronously. The toothed ring, through meshing, sequentially drives the second gear and the first gear to rotate. The first gear drives the rotating disk and the eccentrically positioned guide shaft to rotate together. Because the reciprocating sleeve is connected to a horizontally movable rod via a fixed rod, the eccentric rotational motion of the guide shaft is forcibly converted into the horizontal reciprocating linear motion of the reciprocating sleeve. This motion is precisely transmitted to the movable rod through the fixed rod, thereby driving the entire cleaning mechanism to perform periodic cleaning tasks.

[0011] Preferably, a baffle plate is slidably disposed inside the slide groove, and the fixing rod is disposed through the baffle plate; In this design, the baffle plate is slidably installed within a groove at the bottom of the installation chamber, and it has holes through which the fixing rod passes. The main function of the baffle plate is to seal the groove, prevent impurities in the pool from entering the installation chamber, and protect the transmission structure from contamination.

[0012] Preferably, the outer circumference of the eccentric shaft is provided with multiple guide rollers; In this design, the guide roller is rotatably positioned on the outer periphery of the eccentric shaft. Its function is to transform the sliding friction between the reciprocating sleeve and the guide shaft into rolling friction, which significantly reduces motion resistance and component wear.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This device transmits external light sources to the bottom of the pool through a light-collecting cover and a light guide tube on the inner wall of the reflective layer via a light-guiding mechanism. The light is then evenly scattered by a diffuse reflection light-transmitting sheet, effectively solving the problem of insufficient light at the bottom of traditional microalgae cultivation ponds due to water depth.

[0014] 2. This device drives the impeller through a drive mechanism to achieve water circulation, and uses a transmission structure to link with a cleaning mechanism to perform periodic automatic cleaning of the diffuse reflective light-transmitting sheet, preventing dirt from adhering and affecting the light transmittance. It achieves integrated circulation, supplementary lighting and cleaning functions, reducing energy consumption and maintenance costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the light guide structure of the present invention; Figure 3 This is a schematic diagram showing the location of the cleaning mechanism of the present invention; Figure 4 This is a cross-sectional view of the transmission structure of the present invention; Figure 5 This is a schematic diagram of the eccentric shaft position in this invention; Figure 6 This is a schematic diagram of the cleaning structure of the present invention.

[0017] In the picture: 1. Pool body; 11. Divided compartments; 2. Drive mechanism; 21. Bearing housing; 22. Drive motor; 23. Rotating rod; 24. Impeller; 3. Light guiding mechanism; 31. Light guide tube; 32. Light collecting cover; 33. Diffuse reflection light transmission sheet; 4. Cleaning mechanism; 41. Moving rod; 42. Fixing sleeve; 43. Cleaning structure; 44. Transmission structure; 1. Connecting rod; 432. Cleaning scraper rod; 433. Guide rod; 434. Limiting ring; 435. Compression spring; 441. Installation chamber; 442. Slide groove; 443. First gear; 444. Second gear; 445. Gear ring; 446. Rotating disk; 447. Eccentric shaft; 448. Reciprocating sleeve; 449. Fixed rod; 1. Baffle; 6. Guide rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 The present invention provides a technical solution: An environmentally friendly microalgae cultivation pond includes a pond body 1, a dividing chamber 11 in the middle of the pond body 1, the bottom of the dividing chamber 11 being fixedly connected to the inner wall of the pond body 1, and a driving mechanism 2 for driving the circulation within the pond body 1 on the side wall of the pond body 1. The partition compartment 11 is equipped with a light guide mechanism 3 for guiding light into the bottom layer of the water flow in the pool 1; Both sides of the partition compartment 11 are equipped with cleaning mechanisms 4 for cleaning the output end of the light guide mechanism 3 and driven by the drive mechanism 2.

[0020] For further information, please refer to [link / reference]. Figure 1 The drive mechanism 2 includes a bearing housing 21 and a drive motor 22. The bottom of the bearing housing 21 is fixedly connected to the dividing chamber 11. A rotating rod 23 is rotatably arranged in the middle of the bearing housing 21. An impeller 24 is fixedly connected to the outer periphery of the rotating rod 23. The side wall of the drive motor 22 is fixedly connected to the surface of the pool body 1, and the output shaft of the drive motor 22 is fixedly connected to the rotating rod 23.

[0021] For further information, please refer to [link / reference]. Figure 2 The light guiding mechanism 3 includes a light guide tube 31, which is bent and has a reflective layer on its inner wall. The light guide tube 31 is disposed inside the dividing chamber 11. One end of the light guide tube 31 passes through the dividing chamber 11 and the other end of the light guide tube 31 passes through the side wall of the dividing chamber 11. The number of light guide tubes 31 is set to multiple, and the bending directions of adjacent light guide tubes 31 are opposite. A light-collecting cover 32 is fixedly connected to one end of the light guide tube 31, and a diffuse reflection light-transmitting sheet 33 is fixedly connected to the other end of the light guide tube 31.

[0022] For further information, please refer to [link / reference]. Figure 3 The cleaning mechanism 4 includes a movable rod 41, and two fixed sleeves 42 are sleeved on the outer periphery of the movable rod 41. The side walls of the two fixed sleeves 42 are fixedly connected to the dividing chamber 11. The bottom of the movable rod 41 is provided with multiple cleaning structures 43 for cleaning the diffuse reflective light-transmitting sheet 33. A transmission structure 44 is provided above the moving rod 41 for transmitting power to the drive mechanism 2 and driving the moving rod 41 to reciprocate.

[0023] For further information, please refer to [link / reference]. Figure 6 The cleaning structure 43 includes a connecting rod 431. The top of the connecting rod 431 is fixedly connected to the moving rod 41. A cleaning scraper 432 is provided on one side of the connecting rod 431. Multiple guide rods 433 are fixedly connected to the side wall of the cleaning scraper 432. The multiple guide rods 433 are all set through the connecting rod 431 and are slidably connected to the connecting rod 431. Multiple guide rods 433 are fixedly connected to the ends of limit rings 434, and multiple guide rods 433 are fitted with compression springs 435 on their outer periphery. One end of each compression spring 435 abuts against the connecting rod 431, and the other end of each compression spring 435 abuts against the cleaning scraper 432. The cleaning scraper 432 is matched with the adjacent diffuse reflective light-transmitting sheet 33.

[0024] For further information, please refer to [link / reference]. Figure 4-5 The transmission structure 44 includes an installation chamber 441, the side wall of which is fixedly connected to the dividing chamber 11, a sliding groove 442 is provided at the bottom of the installation chamber 441, and a rotating rod 23 is provided through the dividing chamber 11 and is rotatably connected to the dividing chamber 11. A first gear 443 is rotatably mounted on the inner side wall of the installation compartment 441. A second gear 444 is meshed at the top of the first gear 443. A toothed ring 445 is meshed at the top of the second gear 444. The toothed ring 445 is sleeved on the outer periphery of the rotating rod 23 and is fixedly connected to the rotating rod 23. A rotating disk 446 is fixedly connected to the side wall of the first gear 443. An eccentric shaft 447 is rotatably mounted on the side wall of the rotating disk 446. A reciprocating sleeve 448 is sleeved on the outer circumference of the eccentric shaft 447. A fixed rod 449 is fixedly connected between the bottom of the reciprocating sleeve 448 and the moving rod 41.

[0025] For further information, please refer to [link / reference]. Figure 3 A baffle plate 5 is slidably installed inside the slide groove 442, and a fixing rod 449 is installed through the baffle plate 5.

[0026] For further information, please refer to [link / reference]. Figure 5 Multiple guide rollers 6 are provided on the outer circumference of the eccentric shaft 447.

[0027] The workflow of this embodiment is as follows: In this device, the drive motor 22 rotates the impeller 24, driving the liquid circulation within the pool. Simultaneously, the light collected by the light-collecting hood 32 is reflected by the inner wall of the light guide tube 31 and then evenly introduced into the bottom water of the pool 1 by the diffuse reflection light-transmitting sheet 33, providing illumination for microalgae photosynthesis. The power of the drive mechanism 2 is converted into the horizontal reciprocating motion of the moving rod 41 through the transmission structure 44, which consists of a gear ring 445, a gear set, an eccentric shaft 447, and a reciprocating sleeve 448. This motion, in turn, drives the cleaning scraper 432 to periodically clean the surface of the diffuse reflection light-transmitting sheet 33, maintaining its high light transmittance. The entire device achieves integrated and coordinated operation of water circulation, deep-layer illumination, and automatic cleaning through mechanical linkage.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly microalgae cultivation pond, characterized in that, Includes a pool body (1), a dividing chamber (11) is provided in the middle of the pool body (1), the bottom of the dividing chamber (11) is fixedly connected to the inner wall of the pool body (1), and a driving mechanism (2) for driving the circulation flow inside the pool body (1) is provided on the side wall of the pool body (1). The partitioned compartment (11) is equipped with a light guide mechanism (3) for guiding light into the bottom layer of the water flow in the pool (1). Both sides of the segmented compartment (11) are provided with a cleaning mechanism (4) for cleaning the output end of the light guide mechanism (3) and driven by the drive mechanism (2).

2. The environmentally friendly microalgae cultivation pond according to claim 1, characterized in that, The drive mechanism (2) includes a bearing housing (21) and a drive motor (22). The bottom of the bearing housing (21) is fixedly connected to the dividing chamber (11). A rotating rod (23) is rotatably arranged in the middle of the bearing housing (21). An impeller (24) is fixedly connected to the outer periphery of the rotating rod (23). The side wall of the drive motor (22) is fixedly connected to the surface of the pool body (1), and the output shaft of the drive motor (22) is fixedly connected to the rotating rod (23).

3. The environmentally friendly microalgae cultivation pond according to claim 2, characterized in that, The light guiding mechanism (3) includes a light guide tube (31), which is bent and has a reflective layer on its inner wall. The light guide tube (31) is located inside the dividing chamber (11), with one end of the light guide tube (31) penetrating the dividing chamber (11) and the other end of the light guide tube (31) penetrating the side wall of the dividing chamber (11). There are multiple light guide tubes (31), and the bending directions of adjacent light guide tubes (31) are opposite. A light-collecting cover (32) is fixedly connected to one end of the light guide tube (31), and a diffuse reflection light-transmitting sheet (33) is fixedly connected to the other end of the light guide tube (31).

4. The environmentally friendly microalgae cultivation pond according to claim 3, characterized in that, The cleaning mechanism (4) includes a movable rod (41), and two fixed sleeves (42) are fitted around the outer periphery of the movable rod (41). The side walls of the two fixed sleeves (42) are fixedly connected to the dividing chamber (11). The bottom of the movable rod (41) is provided with a plurality of cleaning structures (43) for cleaning the diffuse reflective light-transmitting sheet (33). A transmission structure (44) is provided above the moving rod (41) for transmitting power to the drive mechanism (2) and driving the moving rod (41) to reciprocate.

5. The environmentally friendly microalgae cultivation pond according to claim 4, characterized in that, The cleaning structure (43) includes a connecting rod (431), the top of the connecting rod (431) is fixedly connected to the moving rod (41), a cleaning scraper (432) is provided on one side of the connecting rod (431), and a plurality of guide rods (433) are fixedly connected to the side wall of the cleaning scraper (432). The plurality of guide rods (433) are all arranged through the connecting rod (431), and the plurality of guide rods (433) are all slidably connected to the connecting rod (431). Each of the guide rods (433) is fixedly connected to a limit ring (434) at its end. Each of the guide rods (433) is fitted with a compression spring (435) on its outer periphery. One end of each compression spring (435) abuts against a connecting rod (431), and the other end of each compression spring (435) abuts against a cleaning scraper (432). The cleaning scraper (432) is matched with an adjacent diffuse reflective light-transmitting sheet (33).

6. The environmentally friendly microalgae cultivation pond according to claim 4, characterized in that, The transmission structure (44) includes an installation chamber (441), the side wall of the installation chamber (441) is fixedly connected to the dividing chamber (11), the bottom of the installation chamber (441) is provided with a sliding groove (442), the rotating rod (23) is provided through the dividing chamber (11), and the rotating rod (23) is rotatably connected to the dividing chamber (11); The installation chamber (441) has a first gear (443) rotatably mounted on its inner side wall. A second gear (444) is meshed on the top of the first gear (443). A toothed ring (445) is meshed on the top of the second gear (444). The toothed ring (445) is sleeved on the outer circumference of the rotating rod (23). The toothed ring (445) is fixedly connected to the rotating rod (23). The first gear (443) has a rotating disk (446) fixedly connected to its side wall. An eccentric shaft (447) is rotatably provided on the side wall of the rotating disk (446). A reciprocating sleeve (448) is sleeved on the outer periphery of the eccentric shaft (447). A fixed rod (449) is fixedly connected between the bottom of the reciprocating sleeve (448) and the moving rod (41).

7. The environmentally friendly microalgae cultivation pond according to claim 6, characterized in that, A baffle plate (5) is slidably disposed inside the slide groove (442), and the fixing rod (449) is disposed through the baffle plate (5).

8. The environmentally friendly microalgae cultivation pond according to claim 6, characterized in that, The eccentric shaft (447) is provided with multiple guide rollers (6) rotating on its outer circumference.

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