Spirulina cultivation device

Abstract

The utility model provides a spirulina cultivation device which comprises a cultivation tank, and an aeration strip, a plurality of light supplementing lamps and a temperature control hot bar are distributed in the cultivation tank. Wherein a dustproof cover plate is arranged at the top of the culture tank, and an air hole and an algae collecting hole formed beside the air hole are formed in the center of the dustproof cover plate; aeration holes are formed in the bottom of the breeding tank, and the aeration strips are connected with the aeration holes; the aeration strips are distributed at the bottom of the culture tank in a rectangular shape; spirulina liquid is arranged in the culture tank. The culture tank which is larger in volume and easy to install and clean is adopted, only the aeration pump is used in the culture tank for aeration, the situation that a water pump is used, and consequently the growth of spirulina is affected is avoided, the culture conditions in the culture tank are easy to control, the requirements of the spirulina for the growth environment in different environments are met, and the culture efficiency is improved. The yield of the spirulina is improved, and the requirements of fresh spirulina eating of families are met.

Description

Technical Field

[0001] This utility model relates to the field of spirulina cultivation, and specifically to a spirulina cultivation device. Background Technology

[0002] Spirulina is mainly available in two common product forms: fresh spirulina and dried spirulina powder. The two differ in their active enzyme content and health benefits. The active enzymes in fresh spirulina possess biological activity and health benefits, including boosting immunity, improving digestion, lowering blood sugar, and protecting the liver and kidneys, among other dietary supplement effects. Dried spirulina powder, on the other hand, is more commonly used as a nutritional supplement or additive, serving to provide additional nutrients.

[0003] Currently, the consumption of fresh spirulina is gradually gaining recognition and promotion. However, fresh spirulina is a living food, which is easily contaminated by microorganisms, loses its own activity, and is affected by the oxidation of chemical components at room temperature. Its shelf life is only a few hours, making the consumption of fresh spirulina almost a luxury.

[0004] Currently, most small-scale spirulina cultivation devices available for home balconies are tubular photobioreactors. Their principle involves using a water pump to draw algae solution from the cultivation tank into an aeration tank, and then another water pump draws the algae solution from the aeration tank to the top inlet of the tubular photobioreactor. Due to gravity, the algae solution flows back down into the aeration tank in the return tubular bioreactor, creating a continuous cycle. However, these tubular photobioreactors are expensive to manufacture and unaffordable for most households. Cleaning the tubular tubes is also very troublesome, requiring individual disassembly and cleaning, which is labor-intensive, time-consuming, and prone to damage and leaks. Furthermore, the water pumps used for water circulation are centrifugal pumps with significant shearing force, easily cutting the fine spirulina and affecting its growth. The volume of photosensitive algae in the tubular photobioreactor is also very limited (only 20-30 liters), resulting in a very limited fresh algae yield that cannot meet the needs of a family of three.

[0005] In view of the above, this utility model is hereby proposed. Summary of the Invention

[0006] The purpose of this utility model is to provide a spirulina cultivation device. By using a larger volume cultivation tank that is easy to install and clean, and by using only an aeration pump for aeration in the cultivation tank, the use of a water pump is avoided, thus avoiding the impact on the growth of spirulina. Moreover, the cultivation conditions in the cultivation tank are easy to control, meeting the requirements of spirulina for growth environment in different environments, improving the yield of spirulina, and meeting the demand of families for fresh spirulina.

[0007] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted:

[0008] A spirulina cultivation device includes a cultivation tank; the cultivation tank contains aeration strips, multiple supplemental lighting lamps, and a temperature-controlled heating rod; a dust cover is provided on the top of the cultivation tank, with a ventilation hole at the center and an algae collection hole next to the ventilation hole; aeration holes are provided at the bottom of the cultivation tank, and the aeration strips are connected to the aeration holes; the aeration strips are arranged in a rectangular pattern at the bottom of the cultivation tank; and spirulina liquid is provided inside the cultivation tank.

[0009] In this invention, a tank-type bioreactor is used as the culture container for spirulina. It has advantages such as large volume, easy cleaning, simple installation, and low manufacturing cost. The tank capacity is 100-120L, which significantly improves the yield of spirulina, producing 60-80 grams of fresh spirulina sludge per day, enough for 2-3 people. Furthermore, the use of an aeration pump within the tank avoids the need for a water pump, eliminating shear forces. The water pump is only activated when harvesting spirulina, thus preventing shear forces from affecting the spirulina. The growth of spirulina; and the aquaculture tank in this utility model is a transparent aquaculture tank made of food-grade materials such as acrylic, PP, PE, PVC, and glass. In order to greatly reduce the production cost of spirulina aquaculture equipment, transparent aquaculture tanks can be made by using glass as the material. However, since most of the glass glue used for bonding glass aquaculture tanks is acidic glue, acidic glue is not resistant to alkaline aquaculture solutions and is prone to delamination, which can lead to cracking and leakage of the aquaculture tank. Therefore, neutral glue is used for bonding in the aquaculture tank of this utility model, and a layer of Teflon nano glue is applied after bonding to ensure that the aquaculture tank does not delaminate or leak.

[0010] The aquaculture tank in this invention is equipped with a dust cover on top, which can effectively prevent the spirulina liquid from being contaminated by impurities. The dust cover has a vent hole and an algae collection hole in the center. The vent hole is connected to the filter bucket, and the algae collection hole is connected to the algae pump. The bottom of the dust cover is equipped with an aeration hole, a supplemental light hole, a wire hole, and a drainage hole, which are respectively connected to the aeration strip, the supplemental light, and the temperature control heating rod.

[0011] The aeration strips are arranged in a rectangular pattern in the culture tank, which ensures uniform aeration of the spirulina culture liquid. This allows for greater removal of dissolved oxygen, introduction of carbon dioxide, and tumbling of the spirulina algae. The dissolved oxygen removed by the aeration strips is supplied by an aeration pump located at the bottom.

[0012] Preferably, as a further feasible solution, the bottom of the culture tank is also provided with multiple supplemental lighting holes, and the supplemental lights are connected to the supplemental lighting holes; each supplemental light is wrapped with a waterproof layer; based on the characteristics of spirulina photosynthesis, this utility model designs a special LED supplemental light for spirulina with a light intensity of 100-200 μmol / m²s and light quality of blue light (400-500nm) and red light (620-680nm). By placing the supplemental light in the culture tank and connecting it to a smart power strip, the smart power strip can manually control the light exposure time, thereby intelligently regulating the culture conditions of spirulina, so that spirulina can grow better in an environment of alternating light and darkness, and thus greatly improve the growth rate and photosynthetic rate of spirulina through such light cycle changes.

[0013] Preferably, as a further feasible option, a filter bucket is also provided on the top of the breeding tank, and the filter bucket is connected to the breeding tank through the vent hole.

[0014] Preferably, as a further feasible option, the nylon mesh is a 300-400 mesh nylon mesh.

[0015] In this invention, a filter bucket composed of a conical funnel and a nylon mesh is placed in the vent hole of the dust cover on the top of the culture tank. The filter bucket effectively filters the algae, and during the algae harvesting period, an algae pump is used to pump the spirulina culture solution into the filter bucket for filtration and harvesting of fresh spirulina. The filtrate can then be recycled back into the culture tank for reuse. 300-400 mesh nylon mesh is preferred as it has excellent filtration effect on the spirulina culture solution.

[0016] Preferably, as a further feasible option, an algae pump is also provided above the filter bucket, and the algae pump is connected to the aquaculture tank through the algae collection hole.

[0017] Preferably, as a further feasible solution, a supporting base box is provided below the breeding tank for supporting the breeding tank and placing the aeration pump, etc.; the supporting base box is equipped with a smart power strip and an aeration pump, the aeration pump is connected to the smart power strip, and the smart power strip supplies power to the aeration pump.

[0018] Preferably, as a further feasible option, the aeration pump includes an air outlet and an air inlet, a filter element is provided in front of the air inlet, and the air outlet is connected to the aeration strip.

[0019] In this invention, a filter element is installed before the air inlet of the aeration pump. This filter element can effectively pre-filter the air, so that the air introduced into the aquaculture tank through the air outlet of the aeration pump and the rubber hose connected to the aeration strip is free of pollutants and impurities, thus providing an excellent growth environment for spirulina. The aeration pump is connected to a smart power strip to intelligently control the aeration time, thereby achieving the purpose of intelligently controlling the growth environment of spirulina.

[0020] Preferably, as a further feasible option, both the temperature-controlled heating rod and the supplementary light are connected to the smart power strip.

[0021] In this invention, the temperature control heating rod is installed inside the aquaculture tank and mainly consists of three parts: a monitoring unit, a control unit, and an adjustment unit. It is connected to a smart power strip, which supplies power to and controls the temperature control heating rod. The temperature control heating rod can be remotely controlled via a wireless network to a mobile device, and the temperature can be set within a safe range.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] (1) This utility model provides a spirulina cultivation device. By using a larger volume cultivation tank that is easy to install and clean, and using only an aeration pump for aeration in the cultivation tank, the use of a water pump is avoided, which would affect the growth of spirulina. Furthermore, the cultivation conditions in the cultivation tank are easy to control, which meets the requirements of spirulina for growth environment under different conditions, improves the yield of spirulina, and meets the demand of families for fresh spirulina.

[0024] (2) This utility model provides a spirulina cultivation device, which solves the problem of insufficient light for spirulina cultivation on a home balcony by installing a supplementary light in the cultivation tank. The built-in supplementary light is not only highly efficient in supplementing light, but also does not cause light pollution in the home.

[0025] (3) This utility model provides a Spirulina cultivation device, which adopts the method of rectangularly distributing aeration strips at the bottom of the cultivation tank to increase the aeration of Spirulina growth, thereby making the Spirulina algae roll fully. In addition, the unique installation of the aeration strip supply pipeline adopts the method of top-down installation, which effectively solves the problem of algal liquid backflow and damage to the aeration pump after power failure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a spirulina cultivation device according to the present invention;

[0027] Figure 2 This is a schematic diagram of the overall structure of a spirulina cultivation device according to the present invention.

[0028] The labels in the attached diagram represent: 1. Culture tank; 2. Spirulina liquid; 3. Support box; 4. Aeration strip; 5. Supplemental light; 6. Filter hopper; 7. Aeration pump; 8. Algae pump; 9. Smart power strip; 10. Temperature-controlled heating rod. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are some embodiments of this utility model, but not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "top", "bottom", "inner", "side wall", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] To more clearly illustrate the technical solution of this utility model, the following description is provided in the form of specific embodiments.

[0032] Example 1

[0033] Please see Figure 1-2 As shown, this utility model is a spirulina cultivation device, including 1. a cultivation tank; 2. spirulina liquid; 3. a support box; 4. an aeration strip; 5. a supplemental light; 6. a filter bucket; 7. an aeration pump; 8. an algae extraction pump; 9. a smart power strip; and 10. a temperature-controlled heating rod.

[0034] This utility model provides a spirulina cultivation device, such as... Figure 1 and 2 As shown, the device includes a breeding tank 1; the breeding tank 1 is made of transparent material, including but not limited to acrylic, PP, PE, PVC, food-grade glass with safety requirements, etc.

[0035] Within the aquaculture tank 1, aeration strips 4 are arranged in a rectangular pattern, such as... Figure 2 As shown, there are multiple supplemental lights 5 and temperature control heating rods 10; and a dust cover is provided on the top of the aquaculture tank 1, with a ventilation hole in the center of the dust cover and an algae collection hole next to the ventilation hole; and an aeration hole is also provided at the bottom of the aquaculture tank 1, with an aeration strip connected to the aeration hole.

[0036] The culture tank 1 is filled with spirulina solution 2, which requires a clean water source with a pH value maintained between 8.5 and 10.5; the temperature is controlled between 25℃ and 35℃; and 12-16 hours of light per day is required, using natural light or artificial light sources (such as LED lights); nutrient supply can be provided using Zarrouk culture medium.

[0037] The bottom of the breeding tank 1 is provided with multiple supplemental lighting holes. The supplemental lighting 5 built into the breeding tank 1 is connected to the supplemental lighting 5 through the supplemental lighting holes, thereby fixing the supplemental lighting 5 inside the breeding tank 1. In order to prevent water from entering the supplemental lighting 5, a waterproof layer is wrapped around the outside of the supplemental lighting.

[0038] The top of the aquaculture tank 1 is also equipped with a filter bucket 6. The filter bucket 6 is placed in the air vent on the top of the aquaculture tank 1 so that the filter bucket 6 is connected to the aquaculture tank, and fresh spirulina can be collected through the filter bucket to achieve fresh consumption of spirulina.

[0039] The filter bucket 6 consists of a conical funnel and a nylon mesh, with the nylon mesh distributed inside the conical funnel. The nylon mesh is made of 300-400 mesh. An algae pump 8 is also installed above the filter bucket 6. The algae pump 8 is placed in the algae collection hole at the top of the culture tank 1, thereby connecting the algae pump 8 to the culture tank 1. The algae pump 8 draws spirulina liquid from the culture tank 1 and pumps it into the filter bucket 6 for filtration, thereby obtaining fresh spirulina.

[0040] The breeding tank 1 is also provided with a support base 3 below it. The support base 3 is equipped with a smart power strip 9 and an aeration pump 7. The aeration pump 7, the temperature control heating rod 10 and the supplementary light 5 are all connected to the smart power strip 9, so that the aeration, temperature and supplementary light time can be intelligently controlled through the smart power strip 9.

[0041] The specific implementation process of the spirulina cultivation device of this utility model is as follows:

[0042] A transparent culture tank 1 made of glass is selected. The glass is 10mm thick and the external dimensions of the tank are 800mm long × 400mm wide × 450mm high (culture height is 400mm). The internal volume of the spirulina culture tank 1 is 118 liters. Neutral structural adhesive is used for bonding, and a layer of Teflon nano adhesive is applied to the surface of the bonding seam inside the tank to prevent the alkaline culture solution from corroding the structural adhesive.

[0043] At the bottom of the breeding tank 1, drill four Ф40mm holes with an electric drill for installing supplemental lights 5, and drill two Ф20mm holes for installing aeration strips 4 and sewage pipes;

[0044] A double-layered sliding edge strip is embedded at the top edge of the transparent aquarium 1. The top dust cover is made of three 5mm thick pieces of 360mm×250mm glass, edged with plastic strips. One Ф40mm hole and one Ф20mm hole are drilled in one of the glass pieces to house the filter 6 and the algae pump 8.

[0045] A support base box 3 with a length of 800mm × width of 400mm × height of 800mm is made of aluminum alloy material, and the support base box 3 is equipped with 2 doors;

[0046] Use four 400mm long Ф40mm acrylic tubes to make a waterproof outer shell for the supplemental light 5. Seal the upper end of the acrylic tube with a tube cap and glue the lower end with a PVC-U drain connector. Install it at the bottom of the breeding tank.

[0047] Using a Ф20 mm fish tank drain connector, pass through the drain hole at the bottom of the transparent aquarium and connect it to the flexible hose supporting the box 3 to make a drainage pipe for the aquarium.

[0048] Use a Ф20 mm aquarium water inlet / outlet connector, pass it through the aeration hole at the bottom of the aquarium, raise the upper end of the connector with a rigid material and make it higher than the water surface, and then connect the Ф6 mm soft rubber tube to the rectangular aeration strip 4 at the bottom of the aquarium; connect the lower end of the connector to the air outlet of the aeration pump 7 through a flexible hose, and insert the power cord of the aeration pump 7 into the smart power strip 9.

[0049] Insert the four supplemental lights 5 from the bottom of the aquarium upwards into the acrylic waterproof cover, and connect the power cords in parallel and plug them into the smart power strip 9.

[0050] In winter, place the temperature-controlled heating rod 10 completely in the spirulina solution (this is not necessary in summer), and plug the power cord into the smart power strip 9;

[0051] Prepare the Zarrouk formula nutrient solution according to the volume of the culture tank. The main components and their amounts in the Zarrouk formula are as follows (in grams per liter): NaHCO3: 16.80; K2HPO4: 0.50; NaNO3: 2.50; NaCl: 1.00; MgSO4·7H2O: 0.20; FeSO4·7H2O: 0.01; K2SO4: 1.00; CaCl2·2H2O: 0.04; EDTA: 0.08; A5: 1 mL / L; B6: 1 mL / L. Spirulina platensis is selected as the culture medium, and it can be harvested and consumed approximately one week after cultivation.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spirulina cultivation device, characterized in that, The system includes a culture tank; the culture tank contains aeration strips, multiple supplemental lights, and a temperature-controlled heating rod; the top of the culture tank is equipped with a dust cover, the dust cover has a vent hole in the center and an algae collection hole next to the vent hole; the bottom of the culture tank has aeration holes, and the aeration strips are connected to the aeration holes; the aeration strips are arranged in a rectangular pattern at the bottom of the culture tank; the culture tank contains spirulina liquid.

2. The spirulina cultivation device according to claim 1, characterized in that, The bottom of the breeding tank is also provided with multiple supplemental lighting holes, and the supplemental lights are connected to the supplemental lighting holes; each supplemental light is covered with a waterproof layer.

3. The spirulina cultivation device according to claim 2, characterized in that, The top of the aquaculture tank is also equipped with a filter bucket, which is connected to the aquaculture tank through the vent.

4. The spirulina cultivation device according to claim 3, characterized in that, The filter bucket consists of a conical funnel and a nylon mesh, with the nylon mesh distributed inside the conical funnel.

5. The spirulina cultivation device according to claim 4, characterized in that, The nylon mesh is a 300-400 mesh nylon mesh.

6. The spirulina cultivation device according to claim 3, characterized in that, An algae pump is also installed above the filter bucket, and the algae pump is connected to the aquaculture tank through the algae collection hole.

7. The spirulina cultivation device according to claim 2, characterized in that, A support base is provided below the aquaculture tank. A smart power strip and an aeration pump are installed inside the support base. The aeration pump is connected to the smart power strip and is powered by the smart power strip.

8. The spirulina cultivation device according to claim 7, characterized in that, The aeration pump includes an air outlet and an air inlet. A filter element is installed in front of the air inlet, and the air outlet is connected to the aeration strip.

9. The spirulina cultivation device according to claim 7, characterized in that, The temperature-controlled heating element and the supplementary light are both connected to the smart power strip.

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