Microalgae culture device

Abstract

The utility model discloses a microalgae culture device which comprises a culture container, the culture container is fixed on the ground through an installation vertical frame and comprises a shell and a transparent culture cylinder vertically embedded in the shell, an upper chamber and a lower chamber are arranged in the culture cylinder, the upper chamber is a liquid conveying chamber, the lower chamber is a culture chamber, and the liquid conveying chamber is communicated with the culture chamber. A plurality of liquid leakage openings communicated with the culture chamber are formed in the bottom end of the liquid conveying chamber in a penetrating manner; the nutrient solution conveying unit is communicated with the top end of the liquid conveying cavity and comprises a nutrient solution storage box, a liquid conveying pipe, a water pump and a first control valve, one end of the liquid conveying pipe is communicated with the nutrient solution storage box, the other end of the liquid conveying pipe is communicated with the top end of the liquid conveying cavity, and the water pump and the first control valve are connected to the liquid conveying pipe. According to the utility model, a nutrient solution can be uniformly distributed, so that microalgae at different positions can be in rapid contact with the nutrient solution, and the growth speed difference of the microalgae is small.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic nursing, in particular to a bone and joint trauma nursing auxiliary dressing device. Background Art

[0002] Microalgae are a type of single-cell organisms with chlorophyll. They are autotrophic, diverse, widely distributed, and fast-growing. They can use CO2 for photosynthesis during reproduction to produce rich organic matter and release oxygen. Microalgae are irreplaceable in aquatic seedlings as the starter feed for aquatic animal seedlings and the nutritional fortification food for secondary bait organisms. Their core position is reflected in the direct starter feed for shellfish, shrimp larvae, and some fish larvae. Secondly, they are also the necessary food for secondary bait organisms in aquaculture such as rotifers, artemia, copepods, and cladocerans. Therefore, the cultivation of algae is also increasing.

[0003] In the process of using a culture device to culture microalgae, it is usually necessary to add nutrient solution into the culture chamber to provide nutrients to promote the growth of microalgae. For example, a multifunctional algae culture device disclosed in the patent document with application number CN205161430U includes a culture device and a culture chamber. The bottom left side of the culture device is provided with a dirt storage cavity, and the right side is provided with a nutrient solution cavity. The culture chamber is arranged inside the culture device, and the upper part of the culture device is connected with a lamp holder. When the technical solution is used, the nutrient solution in the nutrient chamber enters the dirt storage cavity through the provided dirt storage cavity and nutrient solution cavity when the culture task is completed, and the nutrient solution is drawn out from the nutrient solution cavity and sent to the nutrient chamber for algae culture. However, when the solution is used, the nutrient solution can only enter the interior of the culture chamber through a single pipeline, resulting in the nutrient solution being concentrated in a certain place when added, and the nutrient solution is unevenly distributed, which will cause the microalgae at different positions to be unable to quickly contact the nutrient solution, causing a certain impact on the culture of microalgae. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the algae cultivation device in the prior art can only allow the existing nutrient solution to enter the cultivation chamber through a single pipe, resulting in the nutrient solution being concentrated in a certain place when added, and the nutrient solution being unevenly distributed, which will cause the microalgae at different positions to be unable to quickly contact the nutrient solution, thus causing a certain impact on the cultivation of the microalgae, thereby providing a microalgae cultivation device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A microalgae cultivation device comprises a cultivation container and a nutrient solution delivery unit; the cultivation container is fixed on the ground by means of an installation stand, and comprises an outer shell and a transparent cultivation cylinder vertically embedded in the outer shell, wherein the interior of the cultivation cylinder comprises an upper chamber and a lower chamber, wherein the upper chamber is an infusion chamber, and the lower chamber is a cultivation chamber, and a plurality of leakage ports connected to the cultivation chamber are provided through the bottom end of the infusion chamber; the nutrient solution delivery unit is connected to the top end of the infusion chamber, and comprises a nutrient solution storage tank, an infusion tube, a water pump and a first control valve, wherein one end of the infusion tube is connected to the nutrient solution storage tank, and the other end is connected to the top end of the infusion chamber, and the water pump and the first control valve are respectively connected to the infusion tube.

[0007] In an optional embodiment, a filter is installed at the connection point between the top of the infusion chamber and the infusion tube.

[0008] In an optional embodiment, it further includes a lighting assembly, which includes a plurality of lighting tubes vertically arranged between the outer shell and the culture cylinder, and the plurality of lighting tubes are circumferentially spaced around the culture cylinder.

[0009] In an optional embodiment, the lighting assembly also includes an annular connecting seat which is sleeved on the outside of the culture tube and forms a set spacing with the outer wall of the culture tube, and multiple lighting tubes are arranged circumferentially at intervals on the end face of the connecting seat, and the bottom end of the connecting seat is rotatably connected to the bottom end of the inner cavity of the shell, and a plurality of gear teeth are distributed on the outer peripheral wall of the connecting seat. A driving motor is fixedly installed at the bottom end of the shell, and the output shaft of the driving motor passes through the inner cavity of the shell and is connected to a driving gear meshing with the gear teeth of the connecting seat through a reducer, and the driving gear is suitable for driving the connecting seat to rotate to drive the multiple lighting tubes to rotate circumferentially.

[0010] In an optional embodiment, the bottom end of the connecting seat is recessed with an annular groove, the bottom end of the inner cavity of the shell is convexly provided with an annular protrusion adapted to the annular groove, and the connecting seat is rotatably connected to the annular protrusion via the annular groove.

[0011] In an optional embodiment, a liquid outlet is provided at the bottom end of the culture cylinder, a second control valve is installed on the liquid outlet, and the liquid outlet is connected to a collection box through a collection pipe.

[0012] In an optional embodiment, it further includes a heating component arranged on the inner wall of the culture chamber, and the heating component includes a temperature sensor, a heating shell, and an electric heating resistance wire arranged inside the heating shell.

[0013] In an optional embodiment, it also includes a control unit, which includes a controller, a liquid level sensor and a chlorophyll sensor, the liquid level sensor and the chlorophyll sensor are respectively installed on the inner wall of the culture chamber, and the controller is electrically connected to the first control valve, the water pump, the second control valve, the drive motor, the liquid level sensor, the chlorophyll sensor, the temperature sensor and the thermal resistance wire.

[0014] In an optional embodiment, the mounting stand includes a mounting ring and three supporting feet that are inclined and evenly spaced at the bottom end of the mounting ring, and the bottom end of the inner wall of the mounting ring is connected to an annular supporting plate along the inner wall of the mounting ring.

[0015] Compared with the prior art, the technical solution of the utility model has the following advantages:

[0016] 1. The utility model provides a leakage port through the bottom of the infusion chamber, so that the nutrient solution can be delivered to the culture chamber in a dispersed state, so that the nutrient solution is distributed more evenly, so that the microalgae at different positions can quickly contact the nutrient solution, thereby the growth rate of the microalgae is less different, and the more dispersed the nutrient solution is, the better the microalgae absorb it, which can further improve the growth rate of the microalgae.

[0017] 2. The utility model uses the functions of the illumination lamp tube, the connecting seat, the annular groove, the annular protrusion, the driving gear and the driving motor. The driving motor drives the driving gear to rotate, thereby driving the connecting seat and the illumination lamp tube to rotate around the culture tube, which can fully provide light for the microalgae in the culture tube, so that the light in each corner of the culture tube is more uniform and sufficient, avoiding the existence of light dead corners, and further improving the yield and growth of microalgae.

[0018] 3. The utility model can sense the temperature change of the algae liquid in the culture chamber in real time through the controller, temperature sensor and electric heating resistor. When the temperature sensor senses that the temperature of the algae liquid is lower than the preset value, the electric heating resistor will automatically start to heat the algae liquid. After heating to the preset value, the electric heating resistor will automatically stop heating to prevent the algae liquid temperature from being too low and affecting the growth of algae. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a microalgae cultivation device according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the culture cylinder of the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the installation stand of the embodiment of the utility model;

[0022] Figure 4This is a schematic cross-sectional view of a culture container according to an embodiment of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the embodiment of the utility model when the connecting base is installed with the illumination lamp tube;

[0024] Wherein, the accompanying drawings are marked as follows:

[0025] 1. Shell; 2. Culture tube; 21. Infusion chamber; 22. Leakage port; 23. Culture chamber; 24. Liquid outlet; 3. Controller; 4. Nutrient solution storage tank; 5. Water pump; 6. First control valve; 7. Mounting ring; 71. Support plate; 8. Support foot; 9. Second control valve; 10. Collection tube; 11. Collection tank; 12. Illumination lamp tube; 13. Connecting seat; 14. Annular bump; 15. Drive motor; 16. Drive gear; 17. Liquid level sensor; 18. Heating shell; 19. Thermal resistor. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0028] For easier understanding, see Figures 1 to 3 The utility model provides a microalgae cultivation device, including a cultivation container and a nutrient solution delivery unit; the cultivation container is fixed on the ground by installing a stand, including an outer shell 1 and a transparent cultivation tube 2 vertically embedded in the outer shell 1, wherein the interior of the cultivation tube 2 has an upper chamber and a lower chamber, wherein the upper chamber is an infusion chamber 21, and the lower chamber is a cultivation chamber 23, and a plurality of leakage ports 22 connected to the cultivation chamber 23 are formed through the bottom end of the infusion chamber 21; the nutrient solution delivery unit is connected to the top end of the infusion chamber 21, and includes a nutrient solution storage tank 4, an infusion tube, a water pump 5 and a first control valve 6, one end of the infusion tube is connected to the nutrient solution storage tank 4, and the other end is connected to the top end of the infusion chamber 21, and the water pump 5 and the first control valve 6 are respectively connected to the infusion tube.

[0029] In this embodiment, by opening a leakage port 22 at the bottom of the infusion chamber 21, the nutrient solution can be delivered to the culture chamber 23 in a dispersed state, so that the nutrient solution is distributed more evenly, so that the microalgae at different positions can quickly contact the nutrient solution, and the growth rate of the microalgae is less different.

[0030] In this embodiment, the outer shell 1 surrounds the outside of the culture tube 2, and there is a certain distance between the inner wall of the outer shell 1 and the inner wall of the culture tube 2. The interior of the culture tube 2 has two chambers, namely an upper chamber and a lower chamber. The space of the upper chamber is smaller than the cavity of the lower chamber. The upper chamber is used to accommodate nutrient solution input from the outside, and the lower chamber is used to cultivate microalgae. The nutrient solution in the upper chamber will flow into the lower chamber in a dispersed state through the leakage port 22. The leakage port 22 covers the bottom of the upper chamber. The leakage port 22 is distributed in a circle in the circumferential direction and in multiple circles from the outside to the inside. The nutrient solution stored in the nutrient solution storage box 4 can be a variety of liquid components such as carbon source, nitrogen source, inorganic salt, acid, alkali, etc. that promote the growth of algae.

[0031] In the above embodiment, when nutrient solution needs to be added to the culture tube 2, the first control valve 6 is opened first, and then the nutrient solution in the nutrient solution storage box 4 is pumped into the infusion chamber 21 through the water pump 5. The nutrient solution in the infusion chamber 21 then flows in a dispersed manner to various positions of the culture chamber 23 through multiple leakage ports 22. When the amount is reached, the water pump 5 and the first control valve 6 can be closed.

[0032] Optionally, the mounting stand includes a mounting ring 7 and three supporting feet 8 which are inclined and evenly spaced at the bottom end of the mounting ring 7. The bottom end of the inner wall of the mounting ring 7 is connected with an annular supporting plate 71 along the inner wall of the mounting ring 7. When in use, the culture container is directly inserted into the mounting ring 7 and then supported and fixed by the supporting plate 71. When disassembling, the culture container can be lifted up, thereby facilitating the installation and disassembly of the culture container.

[0033] Preferably, a filter is installed at the connection point between the top of the infusion chamber 21 and the infusion tube, and the filter is a 100-mesh filter bag for filtering impurities in the nutrient solution.

[0034] In an alternative embodiment, see Figure 4 and Figure 5 , also includes a lighting assembly, which includes a plurality of lighting tubes 12 vertically arranged between the shell 1 and the culture tube 2, and the plurality of lighting tubes 12 are circumferentially spaced around the culture tube 2.

[0035] Preferably, the lighting assembly also includes an annular connecting seat 13 which is sleeved on the outside of the culture tube 2 and forms a set spacing with the outer wall of the culture tube 2. The multiple lighting tubes 12 are arranged on the end surface of the connecting seat 13 at circumferential intervals. The bottom end of the connecting seat 13 is rotatably connected to the bottom end of the inner cavity of the outer shell 1. A number of gear teeth are distributed on the outer peripheral wall of the connecting seat 13. A driving motor 15 is fixedly installed at the bottom end of the outer shell 1. The output shaft of the driving motor 15 is passed through the inner cavity of the outer shell 1 and is connected to a driving gear 16 meshing with the gear teeth of the connecting seat 13 through a reducer. The driving gear 16 is suitable for driving the connecting seat 13 to rotate so as to drive the multiple lighting tubes 12 to rotate circumferentially. The driving motor 15 can be controlled to turn on and off according to the set time. When the driving motor 15 is turned on, it will drive the driving gear 16 to rotate horizontally, thereby driving the connecting seat 13 to rotate, thereby achieving the purpose of rotating the multiple lighting tubes 12 around the culture tube 2.

[0036] Optionally, the bottom end of the connecting seat 13 is recessed with an annular groove, and the bottom end of the inner cavity of the shell 1 is convexly provided with an annular protrusion 14 adapted to the annular groove. The connecting seat 13 is rotatably connected to the annular protrusion 14 via the annular groove, and the annular groove can be stuck on the annular protrusion 14 and rotate along the annular protrusion 14, thereby allowing the connecting seat 13 to rotate relative to the culture tube 2.

[0037] In other embodiments, the annular protrusion may be two symmetrical arc blocks, that is, two arc blocks are symmetrically protruded on the left and right sides or the front and back sides of the bottom end of the inner cavity of the shell 1, and the two arc blocks are inserted into the annular groove and slidably connected to the annular groove, and the annular groove rotates back and forth on the two arc blocks.

[0038] In this embodiment, through the action of the illumination lamp 12, the connecting seat 13, the annular groove, the annular protrusion 14, the driving gear 16 and the driving motor 15, the driving motor 15 drives the driving gear 16 to rotate, thereby driving the connecting seat 13 and the illumination lamp 12 to rotate around the culture tube 2, which can fully provide light for the microalgae in the culture tube 2, so that the light in each corner of the culture tube 2 is more uniform and sufficient, avoiding the existence of light dead corners, and further improving the yield and growth of microalgae.

[0039] In the present embodiment, the illumination lamp tube 12 is a cold white fluorescent lamp tube, which can avoid the influence of light heat generation on the culture temperature. The lamp tube is detachably installed on the top end face of the connecting seat 13. Specifically, a threaded hole can be opened on the end face of the connecting seat 13, and the lamp tube is screwed in and fixed through the threaded hole. When it needs to be replaced, the lamp tube can be screwed out. There is a certain distance between adjacent threaded holes, and there is a certain distance between the connecting seat 13 and the outer wall of the culture tube 2 to avoid the heat of the lamp tube being too close to the culture tube 2 and causing the temperature of the algae liquid to rise. The outer peripheral wall of the connecting seat 13 is evenly covered with gear teeth, and the driving gear 16 is arranged on one side of the connecting seat 13 and meshes with the gear teeth of the connecting seat 13 to drive the connecting seat 13 rotates, thereby driving the illumination lamp 12 to rotate around the culture tube 2, and the rotation amplitude can be adjusted as needed, such as setting the time to rotate once an hour, and the amplitude of each rotation can be rotated to a position between the original two illumination lamps 12, that is, the illumination lamp 12 needs to be rotated twice to rotate to the position of the next adjacent illumination lamp 12, so that all places in the culture chamber 23 can be illuminated to avoid the existence of blind spots of illumination, or when the distance between two adjacent illumination lamps 12 is large, the illumination lamp 12 can be rotated three or four times to rotate to the position of the next adjacent illumination lamp 12, and the specific rotation amplitude can be set according to the situation without any limitation.

[0040] In an optional embodiment, a liquid outlet 24 is provided at the bottom end of the culture tube 2, and a second control valve 9 is installed on the liquid outlet 24. The liquid outlet 24 is connected to a collecting box 11 through a collecting tube 10, so as to facilitate the collection of mature algae liquid. After opening the second control valve 9, the mature algae liquid will flow from the collecting tube 10 into the collecting box 11 for collection.

[0041] In an optional embodiment, a heating component is further included on the inner wall of the culture chamber 23 , and the heating component includes a temperature sensor, a heating shell 18 , and an electric heating resistance wire 19 disposed inside the heating shell 18 .

[0042] In this embodiment, the temperature sensor can sense the changes in the temperature of the algae liquid in the culture chamber 23 in real time. When the temperature sensor senses that the temperature of the algae liquid is lower than a preset value, the thermal resistor 19 will automatically start heating the algae liquid. After heating to the preset value, the thermal resistor 19 will automatically stop heating to prevent the algae liquid from being too low and affecting the growth of algae.

[0043] In other embodiments, the heating component may also be set as a constant temperature heating component, that is, the side wall of the heating shell 18 is filled with a phase change material.

[0044] In an optional embodiment, a control unit is also included, which includes a controller 3, a liquid level sensor 17 and a chlorophyll sensor, and the liquid level sensor 17 and the chlorophyll sensor are respectively installed on the inner wall of the culture chamber 23, and the controller 3 is electrically connected to the first control valve 6, the water pump 5, the second control valve 9, the drive motor 15, the liquid level sensor 17, the chlorophyll sensor, the temperature sensor and the thermal resistance wire 19.

[0045] It should be noted that the first control valve, water pump, second control valve, drive motor, controller, liquid level sensor, chlorophyll sensor, temperature sensor and thermal resistance wire in the present embodiment are all conventional components sold on the market. Their specific models, internal structures, connection relationships, working principles and the effects achieved are all public technical knowledge. Therefore, the specific internal structures of these components, how to electrically connect them to the controller and their respective working principles will not be described in detail here.

[0046] In this embodiment, full automation can be achieved through the action of the controller 3. The controller 3 is used to control the opening and closing of the first control valve 6 and the water pump 5. When nutrient solution needs to be added, the controller 3 opens the water pump 5 and the first control valve 6, and the water pump 5 transfers the nutrient solution in the nutrient solution storage tank 4 to the infusion chamber 21. The nutrient solution in the infusion chamber 21 flows into the culture chamber 23 through the action of the leakage port 22. When the height of the nutrient solution in the culture chamber 23 reaches the position of the liquid level sensor 17, the liquid level sensor 17 transmits a signal to the controller 3 to control the closing of the first control valve 6 and the water pump 5, and stops the delivery of the nutrient solution. After the nutrient solution is delivered, the microalgae can be cultured. During the culture process, when it is necessary to adjust the light, the controller 3 will control the start of the drive motor 15 according to the set time, and the drive motor 15 will control the rotation of the drive gear 16. After the rotating shaft of the machine 15 rotates half a circle, it drives the connecting seat 13 to rotate slightly, so that the illumination lamp 12 rotates to the position between the original two illumination lamps 12, and then rotates to the position of the original adjacent illumination lamps 12 after a period of time, so as to continuously rotate. During the cultivation process, the temperature of the algae liquid is monitored in real time by the temperature sensor. When it is lower than the preset value, the controller 3 will turn on the electric heating resistor 19 for heating. When the heating reaches the preset value, the electric heating resistor 19 will be closed to ensure that the temperature of the algae liquid is within a suitable range. After the algae liquid is cultivated for a certain period of time, the chlorophyll will increase. When the chlorophyll sensor senses that the chlorophyll value of the algae liquid reaches the preset value, the controller 3 will open the second control valve 9, and the mature algae liquid will flow into the collection box 11 for collection, so as to complete a cycle of algae cultivation. When the next round of cultivation is needed, the nutrient solution can be input.

[0047] Although the present invention has been described using the above preferred embodiments, it is not intended to limit the scope of protection of the present invention. Any person skilled in the art may make various changes and modifications to the above embodiments without departing from the spirit and scope of the present invention, and the changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A microalgae cultivation device, characterized in that: include: The culture container is fixed on the ground by installing a stand, and comprises a shell and a transparent culture cylinder vertically embedded in the shell, wherein the culture cylinder has an upper chamber and a lower chamber inside, wherein the upper chamber is an infusion chamber, and the lower chamber is a culture chamber, and a plurality of leakage ports communicating with the culture chamber are formed through the bottom end of the infusion chamber; The nutrient solution delivery unit is connected to the top of the infusion chamber, and includes a nutrient solution storage tank, an infusion tube, a water pump and a first control valve. One end of the infusion tube is connected to the nutrient solution storage tank, and the other end is connected to the top of the infusion chamber. The water pump and the first control valve are respectively connected to the infusion tube.

2. The microalgae cultivation device according to claim 1, characterized in that: A filter screen is installed at the connection point between the top of the infusion chamber and the infusion tube.

3. The microalgae cultivation device according to claim 1 or 2, characterized in that: It also includes a lighting assembly, which includes a plurality of lighting tubes vertically arranged between the shell and the culture cylinder, and the plurality of lighting tubes are circumferentially spaced around the culture cylinder.

4. The microalgae cultivation device according to claim 3, characterized in that: The lighting assembly also includes an annular connecting seat which is sleeved on the outside of the culture tube and forms a set spacing with the outer wall of the culture tube. Multiple lighting tubes are arranged circumferentially at intervals on the end surface of the connecting seat. The bottom end of the connecting seat is rotatably connected to the bottom end of the inner cavity of the shell. A plurality of gear teeth are distributed on the outer circumferential wall of the connecting seat. A driving motor is fixedly installed at the bottom end of the shell. The output shaft of the driving motor passes through the inner cavity of the shell and is connected to a driving gear meshing with the gear teeth of the connecting seat through a reducer. The driving gear is suitable for driving the connecting seat to rotate so as to drive the multiple lighting tubes to rotate circumferentially.

5. The microalgae cultivation device according to claim 4, characterized in that: The bottom end of the connecting seat is concavely provided with an annular groove, the bottom end of the inner cavity of the shell is convexly provided with an annular convex block matched with the annular groove, and the connecting seat is rotatably connected with the annular convex block through the annular groove.

6. The microalgae cultivation device according to claim 4, characterized in that: A liquid outlet is provided at the bottom end of the culture cylinder, a second control valve is installed on the liquid outlet, and the liquid outlet is connected to a collection box through a collection pipe.

7. The microalgae cultivation device according to claim 6, characterized in that: It also includes a heating component arranged on the inner wall of the culture chamber, and the heating component includes a temperature sensor, a heating shell, and an electric heating resistance wire arranged inside the heating shell.

8. The microalgae cultivation device according to claim 7, characterized in that: It also includes a control unit, which includes a controller, a liquid level sensor and a chlorophyll sensor, wherein the liquid level sensor and the chlorophyll sensor are respectively installed on the inner wall of the culture chamber, and the controller is electrically connected to the first control valve, the water pump, the second control valve, the drive motor, the liquid level sensor, the chlorophyll sensor, the temperature sensor and the thermal resistance wire respectively.

9. The microalgae cultivation device according to claim 1, characterized in that: The mounting stand comprises a mounting ring and three supporting feet which are inclined and evenly spaced and distributed at the bottom end of the mounting ring. The bottom end of the inner wall of the mounting ring is connected with an annular supporting plate along the inner wall of the mounting ring.

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