CN220432803U - Low-cost microalgae breeding device - Google Patents
Low-cost microalgae breeding device Download PDFInfo
- Publication number
- CN220432803U CN220432803U CN202321062281.4U CN202321062281U CN220432803U CN 220432803 U CN220432803 U CN 220432803U CN 202321062281 U CN202321062281 U CN 202321062281U CN 220432803 U CN220432803 U CN 220432803U
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- microalgae
- cultivation
- plastic film
- pond
- film
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- 238000009395 breeding Methods 0.000 title description 2
- 230000001488 breeding effect Effects 0.000 title description 2
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000002985 plastic film Substances 0.000 claims abstract description 33
- 229920006255 plastic film Polymers 0.000 claims abstract description 33
- 238000009423 ventilation Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 241000195493 Cryptophyta Species 0.000 description 13
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- 239000001963 growth medium Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 235000016425 Arthrospira platensis Nutrition 0.000 description 1
- 240000002900 Arthrospira platensis Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000195585 Chlamydomonas Species 0.000 description 1
- 241000195649 Chlorella <Chlorellales> Species 0.000 description 1
- 241000195620 Euglena Species 0.000 description 1
- 235000019733 Fish meal Nutrition 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 241000195663 Scenedesmus Species 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004467 fishmeal Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- 238000006386 neutralization reaction Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 210000003250 oocyst Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229940082787 spirulina Drugs 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Cultivation Of Seaweed (AREA)
Abstract
The utility model discloses a low-cost microalgae cultivation device, which comprises a cultivation pond, wherein one side of the cultivation pond is provided with a ventilation bracket, a plastic film is covered on the cultivation pond, the plastic film is lapped on the top of the ventilation bracket and seals the ventilation bracket, the other side of the film is fixed on the periphery of the cultivation pond, the plastic film can be attached to the liquid level of microalgae liquid, and the film lapped on the outer side of the ventilation bracket can be opened and closed to adjust the area of the ventilation bracket for sealing. The device can effectively reduce the construction cost and simultaneously realize good temperature control and wind prevention, thereby being beneficial to improving the yield of microalgae cultivation.
Description
Technical Field
The utility model relates to the field of microalgae cultivation, in particular to a microalgae cultivation device which is low in cost and capable of effectively controlling temperature and preventing wind.
Background
Microalgae are the oldest organisms on earth, and are one of the most important organisms on earth today, and fix 40% of carbon dioxide on earth. The microalgae has rapid growth, high photosynthetic efficiency, rich protein content, rich oil and other nutritional ingredients, and can be used for food, health products, aquatic baits and feeds, water pollution treatment and the like. By culturing microalgae on a large scale, the imported dependence of China on petroleum, soybean, fish meal feed and the like can be gradually relieved, and the carbon neutralization is facilitated.
The current method for large-scale industrialized cultivation of microalgae is mainly a runway pool method, and the south is generally an open runway pool, namely, a pool is dug in the open field, a culture solution is filled in the pool, and the microalgae grow in the culture solution. In the north, an arch shed is covered on an open runway pool, so that the environmental invasion is resisted, the temperature is improved, and the cultivation time can be prolonged. At present, most microalgae are produced in a canopy runway pool mode, but a large amount of metal materials are consumed as supports for supporting and preventing wind when the canopy runway pool is built, the galvanized pipe supports are spaced by one meter, each 10 meters is calculated together with a cross beam penetrating through things, and the galvanized pipe is needed to be more than about 1200 meters for each mu of canopy runway pool, so that the cost is high, and the building and maintenance are relatively labor-consuming. In addition, the metal hard tube is easy to rust and has short service life. The characteristics of this shed are that it is practically fully supported, i.e. the shed film is not in contact with the liquid surface of algae liquid, and there is a layer of air between the liquid surface and shed film. The arch canopy runway pool has the main problems that the construction cost is high due to the requirements of support and wind prevention, the algae liquid is increased by Wen Man, and the cooling control in high-temperature weather is difficult to a certain extent because no ventilation opening is arranged.
In order to improve the economic benefit of microalgae cultivation and reduce the facility cost of cultivation, a float cultivation system (CN 212247019U) for cultivating microalgae by using a plastic barrel belt, a microalgae cultivation system (CN 217103848U) which is convenient for temperature control, a width-limited float microalgae cultivation system (CN 217733057U), a shaking microalgae cultivation system (CN 218642736U), a microalgae culture solution disturbance system (CN 218642736U) and the like are improved on the basis, and a continuously optimized technical scheme is provided for large-scale microalgae cultivation.
Disclosure of Invention
The utility model aims to provide a microalgae cultivation device with low cost, which can effectively reduce the construction cost and realize good temperature and wind resistance, thereby being beneficial to further improving the economic benefit of large-scale microalgae cultivation.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the low-cost microalgae cultivation device comprises a cultivation pond, wherein a ventilation support is arranged on one side of the cultivation pond, a plastic film covers the cultivation pond, the plastic film is lapped on the ventilation support and the top of the cultivation pond and seals the ventilation support and the cultivation pond, the plastic film can be attached to the liquid level of microalgae liquid, and the plastic film lapped on the outer side of the ventilation support can be unfolded and used for adjusting the area of the ventilation support; a scroll is arranged on the outer side of the ventilation bracket and used for regulating and controlling the opening and closing of the plastic film; and a film pressing rope is arranged above the plastic film.
Preferably, the culture pond is rectangular, and has a length of 10-200 m and a width of 2-8 m.
Preferably, the height of the ventilated support is 20-200 cm.
Preferably, the periphery of the culture pond is provided with a surrounding baffle, and a water seepage prevention bottom film is arranged in the surrounding baffle.
Preferably, the plastic film and the water-proof bottom film are connected together to provide a relatively closed space for microalgae growth.
Preferably, a water outlet is reserved on the enclosure of the culture pond, and the water outlet is higher than the liquid level of the microalgae liquid in the culture pond and is used for discharging water above the film.
Preferably, the top of the ventilation bracket extends to the inner side of the culture pond to form an extension part.
Preferably, the length of the extension is no greater than 200 cm.
In the above technical scheme, only set up ventilative support in breed pond one side, and need not build the support frame on whole breed pond, can effectively reduce the cost of build like this, breed the pond upper cover and cover plastic film, and the film can laminate the surface to little algae liquid, both be favorable to keeping warm and intensify, also strengthened the ability of resisting strong wind, reduced the risk of being destroyed by strong wind, play the effect that reduces the support frame but not reduce safety, set up ventilative support in one side of film, can adjust the air flow who passes ventilative support through the opening and shutting of film on the regulation ventilative support, the air that flows through blows in plastic film below can effectively be little algae liquid cooling. The microalgae liquid can be injected above the film to cool down, and the arranged water outlet is favorable for water injection or rainwater discharge. The technical scheme is beneficial to further reducing the construction cost of the large-scale microalgae cultivation and improving the temperature control effect.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model (without covering the plastic film);
FIG. 2 is a schematic diagram of the structure of the present utility model (with plastic film);
FIG. 3 is a schematic cross-sectional structure of the present utility model (plastic film is attached to the surface of microalgae liquid).
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in the figure, the low-cost microalgae cultivation device comprises a cultivation pond 1, wherein the cultivation pond 1 can be formed by digging on the ground, and can also be formed by arranging walls and the like around the ground, the cultivation pond is subjected to water seepage prevention treatment, the length of the cultivation pond is 10-200 m, and the width of the cultivation pond is 2-8 m. In a preferred embodiment, the culture pond is rectangular, 100 meters in length and 6 meters in width. The north side of the culture pond is provided with a ventilation bracket 2, the ventilation bracket 2 can be a metal door-shaped bracket, the height of the ventilation bracket 2 is generally 20-200 cm, in one embodiment, the height of the ventilation bracket 2 is 160 cm, two ends of the door-shaped bracket are fixed on the ground, and a vertical beam or a cross beam can be arranged in the door-shaped bracket for reinforcement, but the ventilation performance of the ventilation bracket is maintained. The upper part of the culture pond 1 is covered with a plastic film 3, three sides of the plastic film 3 are respectively fixed on the south side, the east side and the west side of the culture pond, the middle part of the plastic film 3 is stuck on the liquid surface of the microalgae liquid 6, so that the gap between the plastic film 3 and the microalgae liquid is small or no gap, the rapid temperature rise and heat preservation of the microalgae liquid are facilitated, the other side of the plastic film 3 is taken as a wind shielding side 5 to be taken on the top of a wind shielding bracket 2, the outer side part is connected with a scroll 4, the scroll 4 is arranged on the wind shielding bracket 2 and can scroll up and down to pack or release the plastic film of the wind shielding side 5, the air quantity flowing through the wind shielding bracket 2 can be adjusted by adjusting the area of the wind shielding side 5 for shielding the wind shielding bracket 2, namely, the air quantity blown into the bottom of the plastic film is adjusted to cool the microalgae liquid.
In a preferred embodiment, the culture pond 1 is arranged on the ground, soil walls are arranged around the culture pond, the width of the soil walls is 6 meters in the north and the south, the length of the soil walls is 100 meters, the area of the net culture pond is 600 square meters, the depth of the pond is 50 cm, a water seepage prevention bottom film is paved in the culture pond 1, and the height of microalgae liquid is 30 cm. The ventilation bracket 2 is arranged on the north side and has the height of 100 cm, the east, south and west side edges of the plastic film 3 are clamped together with the water seepage prevention bottom film to be fixed, the middle most part of the film is lapped on the surface of algae liquid, and the north end is wound on the scroll 4 and bypasses the top of the ventilation bracket 2. In the embodiment, the plastic film 3 is a 15-wire PO film, and the use result shows that the low-cost microalgae cultivation device can keep stable under climates such as natural wind and rain, provides good growth space for microalgae, increases the temperature of the microalgae liquid in the morning, rolls up the wind shielding side when the temperature reaches a proper interval and exposes a part of the ventilation bracket to enable air to flow in, so that the temperature can be kept balanced and stable, and the wind shielding side is put down to stop the air from flowing in when the temperature reaches the evening, so that the temperature can be effectively kept warm. In this embodiment, a plurality of water outlets (not shown) are preferably provided at the position of 32 cm on the south side of the enclosure, and when the temperature of the algae liquid exceeds the range due to the excessively high temperature, water is sprayed above the plastic film 3 to cool the algae liquid, and the sprayed water can be discharged from the water outlets.
In one embodiment, the top of the ventilated support 2 is provided with an extension towards the direction of the culture pond, which extension serves to further support the membrane 3. The length of the extension is typically no greater than 200 cm. A film pressing rope can be arranged on the upper side of the film and used for pressing the plastic film 3.
When the system is used for culturing microalgae, the types of microalgae cells are not limited, and the microalgae cells can be any microalgae with utilization value, preferably spirulina, chlorella, euglena, scenedesmus, diatom, oocyst, chlamydomonas and the like; the culture solution is not limited in composition, and can be prepared from conventional zaruker culture medium, TAP culture medium, BG11 culture medium, BMM, F/2 culture medium, etc., as long as the culture solution can provide microalgae for growth; the form of the light source is not limited.
Compared with the arch shed built by the existing metal bracket, the arch shed built by the metal bracket has the following advantages:
1. the cost is low: compared with the traditional support runway pool, the support is saved, and the expenditure is saved.
2. The construction is convenient: only the four walls and the north support of the pool are needed to be built, the construction is convenient and quick, and the mechanization is easy to realize.
3. The support is very little, partial film is directly covered on the liquid surface, and the stability of the support is higher.
4. The temperature rise is fast: the temperature of the algae liquid is lower than the optimal temperature in most of the morning even in the morning of the traditional cultivation shed, and the system can rapidly raise the temperature under the low-temperature condition, so that the duration of the optimal temperature is remarkably prolonged.
5. The temperature control effect is good: the ventilation opening is arranged on the ventilation bracket at the north side, water can be added to the upper part of the film for cooling, and the cooling water at the upper part of the film can evaporate to take away heat without influencing algae liquid.
7. Water saving: as most of the film is arranged on the liquid level of the algae liquid, the space between the film and the algae liquid is small, and the evaporation loss is smaller.
8. The transmittance is high: almost no air layer attenuates sunlight, the sunlight can be directly injected into the algae liquid, the light transmittance of the algae liquid is high, and the growth of microalgae is facilitated.
The present embodiments are merely illustrative of the present utility model and are not intended to be limiting, and the technical solutions that are not substantially transformed under the present utility model are still within the scope of protection.
Claims (8)
1. The low-cost microalgae cultivation device comprises a cultivation pond, and is characterized in that a ventilation bracket is arranged on one side of the cultivation pond, a plastic film covers the cultivation pond, the plastic film is lapped on the ventilation bracket and the top of the cultivation pond and seals the ventilation bracket and the cultivation pond, the plastic film can be attached to the liquid level of microalgae liquid, and the plastic film lapped on the outer side of the ventilation bracket can be opened and can be used for adjusting the area of the ventilation bracket; a scroll is arranged on the outer side of the ventilation bracket and used for regulating and controlling the opening and closing of the plastic film; and a film pressing rope is arranged above the plastic film.
2. The low cost microalgae cultivation apparatus as claimed in claim 1, characterized in that the cultivation pond is rectangular and has a length of 10-200 m and a width of 2-8 m.
3. The low cost microalgae cultivation apparatus as claimed in claim 1, wherein the height of the ventilated support is 20-200 cm.
4. The low cost microalgae cultivation apparatus as claimed in claim 1, wherein the cultivation pond is provided with a surrounding barrier around, and a water-impermeable bottom film is arranged in the surrounding barrier.
5. The low cost microalgae cultivation apparatus of claim 4, wherein the plastic film and the water impermeable base film are joined together to provide a relatively closed space for microalgae growth.
6. The low cost microalgae cultivation apparatus of claim 4 or 5, wherein a water outlet is left on the enclosure of the cultivation pond, the water outlet being higher than the liquid level of the microalgae liquid in the cultivation pond for draining water above the membrane.
7. The low cost microalgae cultivation apparatus of claim 1, wherein the top of the ventilation bracket extends to the inside of the cultivation pond to form an extension.
8. The low cost microalgae cultivation device of claim 7, wherein the length of the extension is not more than 200 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321062281.4U CN220432803U (en) | 2023-05-06 | 2023-05-06 | Low-cost microalgae breeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321062281.4U CN220432803U (en) | 2023-05-06 | 2023-05-06 | Low-cost microalgae breeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220432803U true CN220432803U (en) | 2024-02-02 |
Family
ID=89695250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321062281.4U Active CN220432803U (en) | 2023-05-06 | 2023-05-06 | Low-cost microalgae breeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220432803U (en) |
-
2023
- 2023-05-06 CN CN202321062281.4U patent/CN220432803U/en active Active
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