High-stability illumination system for microalgae culture

Abstract

The invention discloses a high-stability illumination system for microalgae culture, and relates to the technical field of microalgae culture. According to the columnar illumination system, an outer pipe body is arranged outside a lamp string in a sleeving mode; a tubular moving trolley is arranged in the outer pipe body, and an annular electromagnet carried by the moving trolley is used for driving an outer cleaning assembly arranged on the outer pipe body in a sleeving mode to move; the whole outer cleaning assembly is a pipe body, and an annular soft bag internally provided with iron powder is arranged on the inner wall. In the moving process of the moving trolley, an annular soft bag on the inner wall of the outer cleaning assembly deforms under the influence of magnetic force and efficiently scrapes off wall-attached microalgae in the up-down moving process; the high-stability illumination system for microalgae culture is stable and reliable, has an efficient self-cleaning function, is high in universality and can be conveniently cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of microalgae cultivation, and in particular to a high-stability lighting system for microalgae cultivation. Background Art

[0002] Microalgae have many advantages such as fast growth rate, strong carbon fixation ability, high photosynthesis efficiency, and high energy product yield. In the existing technology, microalgae cultivation systems are used on a large scale to meet the needs of water treatment and carbon fixation.

[0003] The devices mainly used in the microalgae cultivation system are open devices and closed devices; the open devices are mainly runway-type shallow water devices, curtain-type devices, etc.; the closed devices are mainly columnar devices, cube-type devices, spherical devices and pipeline devices;

[0004] Microalgae is a photoautotrophic organism that is very sensitive to parameters such as light intensity during its growth process. In order to improve the efficiency of microalgae cultivation, in the prior art, whether it is an open device or a closed device, in order to make full use of light energy, light-emitting lamps (lighting systems) are generally arranged inside the algae liquid. However, due to the competition for nutrients and light, microalgae will form a serious wall adhesion phenomenon on the lamp tube, and after adhesion, the light reaching the inside of the algae liquid is weakened, which in turn affects the growth and reproduction of algae cells. In order to ensure the stability of the lighting system, the attached microalgae need to be cleaned regularly. The cleaning process is costly, time-consuming and tedious, which seriously affects the continuity and stability of microalgae cultivation.

[0005] Therefore, there is a need for a high-stability lighting system for microalgae cultivation that is stable and reliable, has an efficient self-cleaning function, is highly versatile, and can be easily cleaned. Summary of the invention

[0006] The embodiments of the present application provide a high-stability lighting system for microalgae cultivation, thereby solving the technical problems in the prior art of microalgae cultivation lighting systems, such as serious microalgae adhesion problems, poor stability of function, inability to self-clean, and a complicated and time-consuming cleaning process; the technical effects of achieving a high-stability lighting system for microalgae cultivation that is stable and reliable, has an efficient self-cleaning function, is highly versatile, and can be easily cleaned are achieved.

[0007] The embodiment of the present application provides a high-stability lighting system for microalgae cultivation, including a top block, a bottom plate, an outer tube body, a light string assembly, an inner sliding assembly, and an outer cleaning assembly;

[0008] The outer tube body is a transparent soft or hard round tube, with both ends fixed to the top block and the bottom plate respectively, and is closed by the top block and the bottom plate;

[0009] The light string assembly comprises a light string of light tubes and a transparent outer sleeve sleeved on the light string (110); both ends of the light string and the outer sleeve are respectively fixed on the top block and the bottom plate;

[0010] The main body of the inner sliding assembly is a tubular mobile trolley, whose wheels abut against the inner wall of the outer tube body and slide along the length direction of the outer tube body; the inner sliding assembly includes a magnetic attraction ring which is an electromagnet, and the gap between the circumference of the magnetic attraction ring and the inner wall of the outer tube body is uniform;

[0011] The outer cleaning component is a circular tubular structure as a whole, which is sleeved on the outer tube body; the outer cleaning component includes a rubber ring-shaped resistance scraper; the resistance scraper is closely attached to the outer tube body under magnetic attraction and then moves with itself to scrape the adherent microalgae.

[0012] Furthermore, the inner sliding assembly also includes an inner carrier tube, an annular carrier plate, a resisting wheel assembly, and a spring wire;

[0013] The bottom of the top block is provided with a receiving groove for accommodating the spring wire;

[0014] The opening of the storage groove faces downward and is a cylindrical groove; the inner carrier tube is a circular tubular ring body, which is sleeved on the light string assembly to play a role of bearing support;

[0015] The annular carrier plate is a circular tubular ring body, the inner wall of which is fixed to the outer wall of the inner carrier tube through a hard bracket and is coaxial with the inner carrier tube;

[0016] The annular carrier plate is used to support the abutment wheel assembly and the magnetic attraction ring;

[0017] The main body of the abutment wheel assembly is a cylindrical wheel made of rubber material, there are multiple of them, and they are positioned on the outer side wall of the annular carrier plate;

[0018] The spring wire is a spring-shaped power wire, the top of which is positioned in the storage slot and connected to the power transmission line;

[0019] The inner ring of the magnetic attraction ring is fixed on the outer ring of the annular carrier plate.

[0020] Further, the external cleaning assembly includes an external carrier tube, a limiting wheel and an abutting scraper;

[0021] The outer carrier tube is a circular tubular ring;

[0022] The limiting wheels are positioned at the top or bottom of the outer carrier tube through a hard bracket, are evenly distributed on the outer carrier tube, and are cylindrical wheel bodies, with side walls abutting against the outer wall of the outer tube body;

[0023] The resisting scraping body comprises an annular soft bag and an annular scraper;

[0024] The annular soft capsule is an elastic rubber annular capsule filled with iron powder, and the outer ring is tightly attached to and fixed on the inner wall of the outer carrier tube;

[0025] The annular scraper is an annular plate body made of rubber, and its longitudinal section is triangular or trapezoidal, and its outer ring is tightly attached to and fixed on the inner ring of the annular soft bag.

[0026] Preferably, the outer tube body and the outer sleeve are both soft tubes, which can be more conveniently placed in different types of containers, thereby better adapting to various containers for culturing microalgae.

[0027] Preferably, a plurality of resisting and scraping bodies are positioned on the outer carrier tube, and the plurality of resisting and scraping bodies are arranged in a row;

[0028] The outer tube body is provided with an upper retaining ring near the top and a lower retaining ring near the bottom;

[0029] The upper retaining ring and the lower retaining ring are both hard ring bodies, and are more than 20 cm away from the end of the outer tube body;

[0030] During the movement of the inner sliding component, when the outer cleaning component abuts against the upper retaining ring and the lower retaining ring and is restricted from moving, the inner sliding component is controlled to continue moving, thereby changing the abutting scraping body adsorbed by the magnetic attraction ring.

[0031] Preferably, a plurality of external stirring bodies are fixed on the external cleaning component; the external stirring bodies are long hard plates or rods, one end of which is fixed on the outer wall of the external carrier tube and is evenly distributed around the circumference of the external cleaning component in a radial arrangement; when the external cleaning component moves up and down, the external stirring bodies play a role in stirring the algae liquid and thereby improving the efficiency of microalgae cultivation.

[0032] Preferably, the number of the magnetic rings on the annular carrier is three, which are arranged in a row, and the spacing between them is less than 2 cm;

[0033] The number of the abutting scraping body on the external cleaning component is one;

[0034] Under normal conditions, the magnetic ring in the middle attracts the scraping body. At this time, controlling whether one of the other two magnetic rings is energized and the size of the magnetic force can control the inclination angle of the scraping body and thus obtain different scraping effects.

[0035] Preferably, the outer carrier tube comprises a base ring and a rotating tube;

[0036] The base ring and the rotating tube are both cylindrical ring bodies and are coaxial. The rotating tube is closely attached to one end of the base ring and is connected to the base ring by rotating around its own axis.

[0037] The limiting wheels are all positioned on the base ring; the resisting scraping bodies are all positioned on the rotating tube;

[0038] The external stirring body is in the shape of a blade;

[0039] When the external cleaning component moves up and down, the external stirring body drives the rotating tube to rotate under the action of the resistance of the algae liquid.

[0040] Preferably, the inner sliding assembly further comprises a suction ring;

[0041] The outer cleaning assembly also includes a corresponding ring;

[0042] The adsorption ring is an electromagnet ring body and is arranged in a row with the magnetic attraction ring;

[0043] When the outer tube is placed vertically, the adsorption ring is located at the bottom of the magnetic attraction ring and the distance between the two is greater than 5 cm;

[0044] The corresponding ring is a hard ring body made of ferromagnetic material, the outer ring of which is fixed on the inner wall of the rotating tube and arranged in a row with the abutting scraping body;

[0045] When the outer tube body is placed vertically, the corresponding ring is located at the bottom of the resisting scraper body and the distance between the two is greater than 5 cm; when the magnetic ring attracts the resisting scraper body, the adsorption ring attracts the corresponding ring; when no scraping and cleaning is required and only stirring is required, the magnetic ring is controlled to be powered off and the adsorption ring is controlled to be powered on.

[0046] Preferably, it also includes an outer clip;

[0047] The outer surface of the outer tube body is provided with a multi-layer outer covering tube;

[0048] The outer clamp is fixed on the outer side wall of the outer carrier tube;

[0049] The outer covering tube is a tubular transparent heat shrink tube, which is in multiple numbers and is sheathed on the outer tube body in multiple layers and closely attached to the outer tube body;

[0050] A knife for cutting the outer coating tube is positioned on the inner wall of the outer carrier tube. The knife is automatically extended and retracted by a control unit and can only cut one layer of the outer coating tube at a time.

[0051] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0052] A columnar lighting system is provided, an outer tube body is arranged outside the light string, a tubular mobile trolley is arranged inside the outer tube body, and an annular electromagnet carried by the mobile trolley is used to drive an outer cleaning component mounted on the outer tube body to move; the outer cleaning component is a tube body as a whole, and an annular soft bag with built-in iron powder is arranged on the inner wall; during the movement of the mobile trolley, the annular soft bag on the inner wall of the outer cleaning component is deformed under the influence of magnetic force and efficiently scrapes off the microalgae attached to the wall during the up and down movement; the technical problems of serious microalgae adhesion problem, poor stability of function, inability to self-clean, and complicated and time-consuming cleaning process in the lighting system for microalgae cultivation in the prior art are effectively solved; thereby achieving the technical effect that the high-stability lighting system for microalgae cultivation is stable and reliable, has an efficient self-cleaning function, is highly versatile, and can be cleaned conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a schematic diagram of the internal structure of the high-stability lighting system for microalgae cultivation in this application;

[0054] Figure 2 This is a schematic diagram of the appearance structure of the high-stability lighting system for microalgae cultivation in this application;

[0055] Figure 3 A schematic diagram of the positional relationship between the light string assembly, the top block and the bottom plate;

[0056] Figure 4 It is a schematic diagram of the overall structure of the inner sliding component;

[0057] Figure 5 is a schematic diagram of the cross-sectional structure of the inner sliding component;

[0058] Figure 6 It is a schematic diagram of the overall structure of the external cleaning component;

[0059] Figure 7 is a schematic diagram of the cross-sectional structure of the external cleaning component;

[0060] Figure 8 A schematic diagram of the positional relationship between the outer tube body and the base frame;

[0061] Fig. 9 Schematic diagram of the positional relationship between the external stirring body and the external carrier tube;

[0062] Fig.10 It is a schematic diagram of the positional relationship between the outer covering tube and the outer tube body.

[0063] In the figure:

[0064] Top block 001, storage groove 010, bottom plate 002, outer tube body 003, power transmission line 004, upper retaining ring 005, lower retaining ring 006, bottom frame 007, outer covering tube 008, light string 110, outer sleeve 120, inner carrier tube 210, annular carrier plate 220, magnetic ring 230, adsorption ring 240, resistance wheel assembly 250, rotating rod 251, rotating wheel body 252, spring wire 260, outer carrier tube 310, base ring 311, rotating tube 312, limiting wheel 320, outer clamp 330, annular soft bag 341, annular scraper 342, corresponding ring 350, outer stirring body 360. DETAILED DESCRIPTION

[0065] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0066] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0068] Embodiment 1

[0069] like Figures 1 to 7 As shown, the high-stability lighting system for microalgae cultivation of the present application includes a top block 001, a bottom plate 002, an outer tube body 003, a light string assembly, an inner sliding assembly, an outer cleaning assembly, a power assembly and a control unit.

[0070] The top block 001 is a hard block with a power transmission line 004 positioned on the top; the power transmission line 004 is electrically connected to the light string assembly and the inner sliding assembly to provide energy for the light string assembly and the inner sliding assembly.

[0071] The bottom plate 002 is a hard plate body, which is fixed to the bottom of the outer tube body 003 and serves to seal the outer tube body 003 .

[0072] like Figure 2As shown, the outer tube body 003 is a transparent soft or hard round tube, with two ends respectively fixed to the bottom of the top block 001 and the top of the bottom plate 002, and is closed by the top block 001 and the bottom plate 002.

[0073] The light string assembly is used as a light source, and includes a light string 110 and an outer sleeve 120; the light string 110 is a string of light tubes, with two ends respectively fixed at the center position of the bottom of the top block 001 and the center position of the top of the bottom plate 002, and electrically connected to the power transmission line 004; the outer sleeve 120 is a transparent tube body, which is sleeved on the light string 110, with the inner wall close to the light string 110, and the two ends are respectively fixed on the top block 001 and the bottom plate 002, so as to prevent the light string 110 from being damaged when the inner sliding assembly moves.

[0074] Furthermore, the outer sleeve 120 and the outer tube body 003 are made of the same material.

[0075] The main body of the inner sliding assembly is a tubular mobile trolley, which is mounted on the light string assembly, and its wheels are against the inner wall of the outer tube body 003. A motor is provided on it (the motor is used to drive its wheels to rotate), and it slides inside the outer tube body 003 along the length direction of the outer tube body 003 under the coordinated control of the control unit and the power assembly;

[0076] like Figure 4 and Figure 5 As shown, the inner sliding component includes a magnetic ring 230; the magnetic ring 230 is a ring-shaped electromagnet, the edge of which is less than two centimeters away from the inner wall of the outer tube body 003 and the gap between the edge and the inner wall of the outer tube body 003 is uniform, and the power is turned on and off under the control of the control unit.

[0077] Furthermore, the inner sliding assembly also includes an inner carrier tube 210, an annular carrier plate 220, a contact wheel assembly 250, and a spring wire 260; the bottom of the top block 001 is provided with a storage groove 010 for accommodating the spring wire 260; the opening of the storage groove 010 faces downward and is a cylindrical groove; the inner carrier tube 210 is a tubular ring body, which is sleeved on the light string assembly and plays a role of bearing and supporting; the annular carrier plate 220 is a tubular ring body, and the inner wall is fixed to the outer wall of the inner carrier tube 210 by a hard bracket (a plate-shaped, plate-shaped or frame-shaped bracket), and is coaxial with the inner carrier tube 210; the annular carrier plate 220 is used to bear and support the contact wheel assembly 250. Wheel assembly 250 and magnetic ring 230; the main body of the abutting wheel assembly 250 is a cylindrical wheel made of rubber, and there are multiple of them, which are positioned on the outer wall of the annular carrier 220, always abutting against the inner wall of the outer tube body 003 and rotating under the coordinated control of the power assembly and the control unit, thereby driving the entire inner sliding assembly to move smoothly in the outer tube body 003; the spring wire 260 is a spring-shaped power line, the top of which is positioned in the storage groove 010 and connected to the power transmission line 004, and the bottom is positioned on the inner carrier tube 210, for supplying power for the operation of the inner sliding assembly; the inner ring of the magnetic ring 230 is fixed on the outer ring of the annular carrier 220.

[0078] Furthermore, the resistance wheel assembly 250 includes a rotating rod 251 and a rotating wheel body 252; the rotating rod 251 is a hard rod body, one end of which is rotatably connected to the outer wall of the annular carrier 220, and the axial direction of the rotating shaft is perpendicular to the axial direction of the annular carrier 220; the rotating wheel body 252 is a cylindrical rubber wheel body, which is rotatably connected to the other end of the rotating rod 251 around its own axis; the axial direction of the rotating wheel body 252 is perpendicular to the axial direction of the annular carrier 220; a torsion spring is positioned at the connection position between the rotating rod 251 and the annular carrier 220, and the existence of the torsion spring ensures that the rotating wheel body 252 always resists and squeezes the inner wall of the outer tube body 003.

[0079] Furthermore, the number of the abutment wheel assemblies 250 is 6, which are arranged in two groups, each with three abutment wheel assemblies. The existence of the 6 abutment wheel assemblies 250 ensures that the gap between the top edge and the bottom edge of the annular carrier plate 220 and the outer tube body 003 is always uniform.

[0080] like Figure 6 and Figure 7 As shown, the outer cleaning component is a circular tubular structure as a whole, which is sleeved on the outer tube body 003, and moves with the movement of the inner sliding component under the magnetic force of the inner sliding component;

[0081] The external cleaning assembly includes an external carrier tube 310, a limiting wheel 320 and a resisting scraper;

[0082] The outer carrier tube 310 is a circular tubular ring body, which plays a role of bearing support, and the difference between the inner diameter and the diameter of the outer tube body 003 is less than 3 cm; the limiting wheel 320 is positioned at the top or bottom of the outer carrier tube 310 through a hard bracket, and is evenly distributed on the outer carrier tube 310. It is a cylindrical wheel body, and the axial direction of the rotating shaft is perpendicular to the length direction of the outer tube body 003, and the side wall is against the outer wall of the outer tube body 003; the existence of the limiting wheel 320 makes the gap between the inner wall of the outer carrier tube 310 and the outer wall of the outer tube body 003 uniform;

[0083] The resisting and scraping body is used to deform under the influence of magnetic force and resist the outer wall of the outer tube body 003, thereby removing the adherent microalgae on the outer wall of the outer tube body 003, and includes an annular soft capsule 341 and an annular scraper 342; the annular soft capsule 341 is an elastic rubber annular capsule filled with iron powder, and the outer ring is tightly attached to and fixed on the inner wall of the outer carrier tube 310; the annular scraper 342 is an annular plate body made of rubber material, and the longitudinal section is triangular or trapezoidal, and the outer ring is tightly attached to and fixed on the inner ring of the annular soft capsule 341; when the annular soft capsule 341 is deformed under the influence of magnetic force, the annular soft capsule 341 is deformed accordingly.

[0084] A lower retaining ring 006 is fixed on the side wall of the outer tube body 003 close to the bottom plate 002 ; the lower retaining ring 006 is a hard ring body, which is used to limit the outer cleaning component from being separated from the outer tube body 003 .

[0085] The power assembly is used to provide power for the operation of the various components of the high-stability lighting system for microalgae cultivation of this application, and the control unit plays a role in controlling the coordinated operation of the various components of the high-stability lighting system for microalgae cultivation. Both are prior arts and will not be described in detail here.

[0086] Preferably, the control unit is a combination of a programmable logic controller and control buttons.

[0087] When the high-stability lighting system for microalgae cultivation of the embodiment of the present application is used: it can be fixed in an open microalgae cultivation system or a closed microalgae cultivation system as needed, and the top block 001 is fixed by a bracket, and it can be placed vertically or tilted; the magnetic suction ring 230 is periodically controlled to be energized, so that the resistance scraper is adsorbed to deform it and close to the inner wall of the outer tube body 003, and the resistance scraper is moved with the resistance scraper to scrape the adherent microalgae.

[0088] Preferably, when the illumination system of the present application is used, controlling the frequent changes in the magnetic force of the magnetic attraction ring 230 can achieve the effect of causing the scraper to vibrate, thereby quickly shaking off the adhered microalgae.

[0089] Preferably, if the present application is used in an open microalgae culture system (open bioreactor), the entire system of the present application can be regularly pulled out for more detailed cleaning after long-term use.

[0090] Preferably, Figure 8 As shown, the outer tube body 003 and the outer sleeve 120 are both soft tubes, which can be more conveniently placed in different types of containers, thereby better adapting to various containers for cultivating microalgae.

[0091] Furthermore, in order to prevent the inner carrier tube 210 from causing friction damage to the outer tube 120 when the inner carrier tube 210 moves, a rubber tube is fixed to the inner wall of the inner carrier tube 210 ; the rubber tube is a rubber material tube body, and the outer wall is in close contact with the inner wall of the inner carrier tube 210 .

[0092] Preferably, a base frame 007 is positioned at the bottom of the bottom plate 002, and the base frame 007 is a frame structure, which plays the role of bearing and supporting the bottom plate 002 and the outer tube body 003; when in use, the base frame 007 can cooperate with the microalgae culture container (by being fixed to the inner bottom or side wall of the microalgae culture container) to realize the vertical setting, inclined setting, horizontal setting or even curved setting of the soft outer tube body 003.

[0093] Preferably, a plurality of resistance scraping bodies are positioned on the outer carrier tube 310, and the plurality of resistance scraping bodies are arranged in a row; an upper retaining ring 005 is positioned near the top of the outer tube body 003, and a lower retaining ring 006 is positioned near the bottom; both the upper retaining ring 005 and the lower retaining ring 006 are hard ring bodies, and are more than 20 cm away from the end of the outer tube body 003; during the movement of the inner sliding assembly, when the outer cleaning assembly is restricted from moving by the upper retaining ring 005 and the lower retaining ring 006, the inner sliding assembly is controlled to continue moving, thereby changing the resistance scraping body adsorbed by the magnetic ring 230.

[0094] Preferably, the materials and hardness of the annular scraper 342 of different resisting scraping bodies are different, and different cleaning effects can be obtained by replacing different resisting scraping bodies.

[0095] Preferably, providing a plurality of resisting scraping bodies can extend the service life of the external cleaning component and reduce its maintenance cycle.

[0096] Preferably, a plurality of external stirring bodies 360 are fixed on the external cleaning component; the external stirring bodies 360 are long hard plates or rods, one end of which is fixed on the outer wall of the external carrier tube 310, and are evenly distributed around the circumference of the external cleaning component in a radial arrangement; when the external cleaning component moves up and down, the external stirring bodies 360 play a role in stirring the algae liquid and thus improving the efficiency of microalgae cultivation.

[0097] Preferably, the outer stirring body 360 is a hard rod or a plate.

[0098] Preferably, the outer stirring body 360 is a soft rod or a plate.

[0099] Preferably, in order to increase the disturbance of the algae liquid caused by the external agitator 360 , the external agitator 360 is densely covered with holes.

[0100] Preferably, the holes on the outer agitating body 360 are through holes of different sizes.

[0101] Preferably, there are three magnetic rings 230 on the annular carrier plate 220, which are arranged in a row with a spacing of less than 2 cm between each other; there is one resisting scraper on the external cleaning component; under normal circumstances, the magnetic ring 230 located in the middle adsorbs the resisting scraper, and at this time, controlling whether one of the other two magnetic rings 230 is energized and the size of the magnetic force can control the inclination angle of the resisting scraper and thereby obtain different scraping effects.

[0102] Preferably, the top of the top block 001 and the bottom of the bottom plate 002 of different microalgae cultivation lighting systems can be spliced, combined and fixed together, and after splicing, the circuit of the spliced ​​microalgae cultivation lighting systems can be turned on; when in use, microalgae cultivation lighting systems of different lengths can be spliced ​​as needed.

[0103] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0104] The present invention solves the technical problems in the prior art of microalgae cultivation illumination systems, such as serious microalgae adhesion problems, poor stability of function, inability to self-clean, and complicated and time-consuming cleaning process; and achieves the technical effect that a high-stability illumination system for microalgae cultivation is stable and reliable, has an efficient self-cleaning function, is highly versatile, and can be easily cleaned.

[0105] Embodiment 2

[0106] Considering that the outer tube body 003 will be tilted, horizontally placed or twisted for a long time, the gravity of the external cleaning component will cause more serious wear on the local position of the annular scraper 342 than other positions (there is a wear difference), thereby affecting the cleaning effect and the maintenance and replacement cycle of the annular scraper 342; in order to balance the wear and extend the service life of the scraper body, the embodiment of the present application optimizes and improves the structure of the outer stirring body 360 and the structure of the outer carrier tube 310 on the basis of the above embodiment, specifically:

[0107] The outer carrier tube 310 includes a base ring 311 and a rotating tube 312;

[0108] The base ring 311 and the rotating tube 312 are both cylindrical ring bodies and are coaxial. The rotating tube 312 is closely attached to one end of the base ring 311 and is connected to the base ring 311 by rotating around its own axis.

[0109] The limiting wheels 320 are all positioned on the base ring 311; the resisting scraping bodies are all positioned on the rotating tube 312;

[0110] like Fig. 9 As shown, the outer stirring body 360 is in the shape of a blade;

[0111] During the up and down movement of the external cleaning component, the external agitating body 360 drives the rotating tube 312 to rotate due to the resistance of the algae liquid.

[0112] Preferably, in order to improve the stability of the outer cleaning component during movement, increase the adsorption effect of the inner sliding component on the outer cleaning component, and realize that even if the attached microalgae are not scraped and cleaned, the outer cleaning component can be driven to stir the algae liquid along the outer tube body 003; the inner sliding component also includes an adsorption ring 240; the outer cleaning component also includes a corresponding ring 350; the adsorption ring 240 is an electromagnet ring body, and is arranged in a row with the magnetic attraction ring 230; when the outer tube body 003 is vertically placed, the adsorption ring 240 is located at the magnetic attraction ring 2 30 and the distance between the two is greater than 5 cm; the corresponding ring 350 is a hard ring body made of ferromagnetic material, and the outer ring is fixed on the inner wall of the rotating tube 312, and is arranged in a row with the resisting scraper body; when the outer tube body 003 is vertically placed, the corresponding ring 350 is located at the bottom of the resisting scraper body and the distance between the two is greater than 5 cm; when the magnetic ring 230 attracts the resisting scraper body, the adsorption ring 240 attracts the corresponding ring 350; when no scraping and cleaning is required and only stirring is required, the magnetic ring 230 is controlled to be powered off and the adsorption ring 240 is controlled to be powered on.

[0113] Embodiment 3

[0114] Considering that the lighting system of the present application needs to be taken out for deep cleaning of the outer tube body 003 in order to maintain the lighting effect after long-term or even ultra-long-term use; in order to further improve the convenience of use of the lighting system for microalgae cultivation of the present application and further increase the convenience of cleaning; the embodiment of the present application is provided with an outer clamp 330 on the side wall of the outer carrier tube 310, and a multi-layer outer tube 008 is added to the outer surface of the outer tube body 003; when deep cleaning is required, the outermost outer tube 008 is torn off with the help of the outer clamp 330 to maintain the clean state of the outer tube body 003, specifically:

[0115] The outer clamp 330 is a manual or electric clamp, and is fixed on the outer wall of the outer carrier tube 310 .

[0116] like Fig.10 As shown, the outer covering tube 008 is a tubular transparent heat shrink tube, which is in multiple numbers and is sheathed on the outer tube body 003 in multiple layers and closely attached to the outer tube body 003;

[0117] A knife for cutting the outer tube 008 is positioned on the inner wall of the outer carrier tube 310 . The knife is automatically extended and retracted by a control unit and can only cut one layer of the outer tube 008 at a time.

[0118] After the lighting system of the present application has been used for a long time, the knife on the outer carrier tube 310 can be controlled to cut a layer of outer covering tube 008, and then the operator can remove the outermost outer covering tube 008; during the removal process, the top position of the outermost outer covering tube 008 can be manually torn off to separate it from other outer covering tubes 008, and then the corners of the outermost outer covering tube 008 can be fixed on the outer clip 330, and the outermost outer covering tube 008 can be torn off with the help of the movement of the external cleaning component.

[0119] Preferably, when all the outer covering tubes 008 on the outer tube body 003 are about to be used or have been completely used up, a new outer covering tube 008 can be coated on the outer tube body 003 (the coating process is to heat and shrink it after coating).

[0120] 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. A high-stability lighting system for microalgae cultivation, characterized in that: It includes a top block (001), a bottom plate (002), an outer tube body (003), a light string assembly, an inner sliding assembly, and an outer cleaning assembly; The outer tube body (003) is a transparent soft or hard round tube, with two ends respectively fixed on the top block (001) and the bottom plate (002), and is sealed by the top block (001) and the bottom plate (002); The light string assembly comprises a light string (110) which is a string of light tubes and a transparent outer sleeve (120) sleeved on the light string (110); both ends of the light string (110) and the outer sleeve (120) are respectively fixed on the top block (001) and the bottom plate (002); The main body of the inner sliding component is a tubular mobile trolley, whose wheels abut against the inner wall of the outer tube body (003) and slide along the length direction of the outer tube body (003); the inner sliding component includes a magnetic attraction ring (230) which is an electromagnet, and the gap between the circumference of the magnetic attraction ring (230) and the inner wall of the outer tube body (003) is uniform; The outer cleaning component is a circular tubular structure as a whole, which is sleeved on the outer tube body (003); the outer cleaning component comprises a rubber annular resistance scraper; the resistance scraper adheres closely to the outer tube body (003) under magnetic attraction, and then scrapes the adherent microalgae as it moves.

2. The high-stability illumination system for microalgae cultivation according to claim 1, characterized in that: The inner sliding assembly further comprises an inner carrier tube (210), an annular carrier plate (220), a resisting wheel assembly (250), and a spring wire (260); The bottom of the top block (001) is provided with a receiving groove (010) for accommodating the spring wire (260); The opening of the storage groove (010) faces downward and is a cylindrical groove; the inner carrier tube (210) is a circular tubular ring body, which is sleeved on the light string assembly and plays a role of bearing support; The annular carrier plate (220) is a circular tubular ring body, the inner wall of which is fixed to the outer wall of the inner carrier tube (210) through a hard bracket and is coaxial with the inner carrier tube (210); The annular carrier plate (220) is used to support the abutment wheel assembly (250) and the magnetic attraction ring (230); The main body of the abutment wheel assembly (250) is a cylindrical wheel made of rubber material, there are multiple of them, and they are positioned on the outer side wall of the annular carrier plate (220); The spring wire (260) is a spring-shaped power wire, the top of which is positioned in the storage groove (010) and is connected to the power transmission line (004); The inner ring of the magnetic attraction ring (230) is fixed on the outer ring of the annular carrier plate (220).

3. The high-stability illumination system for microalgae cultivation according to claim 2, characterized in that: The external cleaning component comprises an external carrier tube (310), a limiting wheel (320) and a resisting scraper; The outer carrier tube (310) is a circular tubular ring; The limiting wheel (320) is positioned at the top or bottom of the outer carrier tube (310) through a hard bracket, is evenly distributed on the outer carrier tube (310), is a cylindrical wheel body, and abuts against the outer wall of the outer tube body (003); The resisting and scraping body comprises an annular soft bag (341) and an annular scraper (342); The annular soft capsule (341) is an elastic rubber annular capsule filled with iron powder, and the outer ring is tightly attached to and fixed on the inner wall of the outer carrier tube (310); The annular scraper (342) is an annular plate body made of rubber material, and its longitudinal section is triangular or trapezoidal, and its outer ring is tightly attached to and fixed on the inner ring of the annular soft bag (341).

4. The high-stability illumination system for microalgae cultivation according to any one of claims 1 to 3, characterized in that: The outer tube body (003) and the outer sleeve (120) are both soft tubes, which can be placed in different types of containers more conveniently, and thus better adapted to various containers for microalgae cultivation.

5. The high-stability illumination system for microalgae cultivation according to claim 3, characterized in that: A plurality of resisting and scraping bodies are positioned on the outer carrier tube (310), and the plurality of resisting and scraping bodies are arranged in a row; An upper retaining ring (005) is positioned near the top of the outer tube body (003), and a lower retaining ring (006) is positioned near the bottom; both the upper retaining ring (005) and the lower retaining ring (006) are hard ring bodies, and are more than 20 centimeters away from the end of the outer tube body (003); During the movement of the inner sliding component, when the outer cleaning component abuts against the upper retaining ring (005) and the lower retaining ring (006) and is restricted from moving, the inner sliding component is controlled to continue moving, thereby changing the abutting scraping body adsorbed by the magnetic attraction ring (230).

6. The high-stability illumination system for microalgae cultivation according to claim 3, characterized in that: A plurality of external stirring bodies (360) are fixed on the external cleaning component; the external stirring bodies (360) are long hard plates or rods, one end of which is fixed on the outer wall of the external carrier tube (310), and are evenly distributed around the circumference of the external cleaning component in a radial arrangement; when the external cleaning component moves up and down, the external stirring bodies (360) play a role in stirring the algae liquid and thus improving the microalgae cultivation efficiency.

7. The high-stability illumination system for microalgae cultivation according to claim 3, characterized in that: The number of magnetic rings (230) on the annular carrier plate (220) is three, arranged in a row, and the spacing between them is less than 2 cm; The number of the abutting scraping body on the external cleaning component is one; Under normal conditions, the magnetic attraction ring (230) in the middle attracts the resisting scraping body. At this time, by controlling whether one of the other two magnetic attraction rings (230) is energized and the magnitude of the magnetic force, the tilt angle of the resisting scraping body can be controlled to obtain different scraping effects.

8. The high-stability illumination system for microalgae cultivation according to claim 6, characterized in that: The outer carrier tube (310) includes a base ring (311) and a rotating tube (312); The base ring (311) and the rotating tube (312) are both cylindrical ring bodies and are coaxial. The rotating tube (312) is closely attached to one end of the base ring (311) and is connected to the base ring (311) by rotating around its own axis. The limiting wheels (320) are all positioned on the base ring (311); the resisting and scraping bodies are all positioned on the rotating tube (312); The outer stirring body (360) is in the shape of a blade; During the up and down movement of the external cleaning component, the external agitator (360) drives the rotating tube (312) to rotate due to the resistance of the algae liquid.

9. The high-stability illumination system for microalgae cultivation according to claim 8, characterized in that: The inner sliding assembly also includes a suction ring (240); The outer cleaning assembly also includes a corresponding ring (350); The adsorption ring (240) is an electromagnet ring and is arranged in a row with the magnetic attraction ring (230); When the outer tube body (003) is placed vertically, the adsorption ring (240) is located at the bottom of the magnetic attraction ring (230) and the distance between the two is greater than 5 cm; the corresponding ring (350) is a hard ring body made of ferromagnetic material, and the outer ring is fixed on the inner wall of the rotating tube (312) and is arranged in a row with the abutting scraper body; When the outer tube (003) is placed vertically, the corresponding ring (350) is located at the bottom of the resisting scraping body and the distance between the two is greater than 5 cm; when the magnetic ring (230) attracts the resisting scraping body, the adsorption ring (240) attracts the corresponding ring (350); when scraping and cleaning are not required and only stirring is required, the magnetic ring (230) is controlled to be powered off and the adsorption ring (240) is controlled to be powered on.

10. The high-stability illumination system for microalgae cultivation according to claim 3, characterized in that: It also includes an outer clamp (330); the outer surface of the outer tube body (003) is provided with a multi-layer outer covering tube (008); The outer clip (330) is fixed on the outer side wall of the outer carrier tube (310); The outer covering tube (008) is a tubular transparent heat shrink tube, which is in multiple numbers and is sheathed on the outer tube body (003) in multiple layers and closely attached to the outer tube body (003); A knife for cutting the outer coating tube (008) is positioned on the inner wall of the outer carrier tube (310). The knife is automatically extended and retracted by a control unit and can only cut one layer of the outer coating tube (008) at a time.

Images