CN219342131U

CN219342131U - Aeration type microalgae culture apparatus

Info

Publication number: CN219342131U
Application number: CN202320655988.XU
Authority: CN
Inventors: 张婷婷; 彭丽成; 吉晓楠; 庞锐捷; 储啸; 宋常正; 解诗雨; 毛洁然
Original assignee: Hainan University
Current assignee: Hainan University
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-07-14
Anticipated expiration: 2033-03-29

Abstract

The utility model discloses an aeration type microalgae culture device which comprises a frame, wherein a plurality of culture tanks are arranged on the frame, a linear guide plate is arranged in the culture tanks, the tail ends of the linear guide plates are connected with the tail ends of the culture tanks, aeration devices are arranged on two sides of the linear guide plate, the culture tanks are an upper culture tank and a bottom culture tank, an algae outlet is arranged on the side surface of the upper culture tank, the bottom culture tank is designed into a closed-loop structure without the algae outlet, the upper culture tank positioned at the top is connected with the bottom culture tank through a circulating pipeline, and a one-way valve and a water pump are arranged on the circulating pipeline. The utility model has simple structure and low manufacturing cost, the algae liquid forms flowing circulation between the upper layer culture pond and the bottom layer culture pond by the cooperation of the aeration device and the water pump, and the aeration device is utilized to increase the contact area of the algae liquid, promote the gas-liquid mass transfer process, avoid the light inhibition phenomenon of algae bodies, lead the microalgae at different layers to be uniformly light-receiving, and have the characteristics of good gas-liquid mass transfer effect, strong light-receiving property, high microalgae yield and the like.

Description

Aeration type microalgae culture apparatus

Technical Field

The utility model belongs to the technical field of microalgae culture, and relates to a microalgae culture device, in particular to an aeration type microalgae culture device.

Background

Microalgae are a type of micro-miniature and nutritious photosynthetic autotrophic microorganism, and widely distributed in land fresh water and ocean, and can utilize sunlight and CO ² And other nutrients can proliferate and grow quickly, and can synthesize a large amount of organic matters in cells, and microalgae can produce CO ² The transformation efficiency of the plant is 10 to 50 times of that of the land higher plant, so the plant has great significance on energy transformation and carbon circulation in ecological environment; meanwhile, microalgae organisms contain rich grease, hydrocarbon and other high-added-value bioactive substances, and are used for preparing liquid fuels, producing medicines, foods and animal feeds, and CO ² The method has wide application prospect in the aspects of fixation and the like, and is one of the hot spots emerging in the field of biorefinery research.

Microalgae culture systems fall into two basic categories: an open microalgae culture system and a closed microalgae culture system. At present, an open microalgae culture system mainly comprises an open culture pond and an open culture device, wherein the open culture pond mainly uses a natural or artificial long-strip-shaped pond, but due to the light absorption and shading effects of microalgae cells, the illumination depth of the culture pond can be attenuated along with the depth of the culture pond and the cell concentration in the microalgae culture process, the culture pond can present an illumination partition structure of a surface strong light area, a middle weak light area and a bottom layer no light area, so that the middle and lower layer of the algae cells are in the weak light area or the dark area, sufficient illumination cannot be obtained, uneven light receiving of the algae cells is caused, the photosynthesis of the algae cells is weaker, and the open culture pond has low investment cost and is easy for large-scale production, but the yield of microalgae organisms is low, and the culture conditions are difficult to control due to topography and natural factors; in the culture process of microalgae, in order to prevent the sedimentation of microalgae, timely discharge oxygen generated during growth of microalgae and make the microalgae receive light alternately, a wave turbine is basically arranged at one end of the raceway pond, the continuous stirring of the wave turbine is used for making the microalgae flow, the wave turbine is used for stirring the portion of the wave turbine while pushing the microalgae, the flow of the microalgae is mainly laminar, so that the stirring effect gradually disappears along with the longer distance, the condition that the light receiving of the lower microalgae is uneven and the gas-liquid mass transfer is reduced still occurs after the long-distance microalgae stops turning, and the wave turbine is mechanically stirring and has a severe amplitude and has a certain damage to the microalgae, so that the open culture device also has the problem of low microalgae biological yield.

Disclosure of Invention

The utility model provides an aeration type microalgae culture device aiming at the defects of the prior art, which adopts a stepped mounting structure, through the cooperation of an aeration device and a water pump, air discharged by the aeration device is utilized to push microalgae and is matched with the extraction of the water pump, so that the microalgae form flow circulation between an upper layer culture pond and a bottom layer culture pond, the contact area of the air and the liquid is increased by the aeration device, the lower layer microalgae in the flowing process is jacked upwards to roll and exchange positions with the upper layer microalgae, the effect of rolling and stirring the microalgae while flowing is achieved, the gas-liquid mass transfer process is promoted, the light inhibition phenomenon of the microalgae on different layers is avoided, the microalgae yield of different layers is uniformly light-receiving, and the microalgae yield is effectively improved.

The utility model adopts the technical scheme that:

an aeration microalgae culture device comprises a frame, wherein the frame is designed into a ladder structure, a plurality of culture tanks are detachably arranged on the frame from top to bottom, the culture tanks are designed into a rectangular structure, a linear guide plate is arranged in the culture tanks, the tail end of the linear guide plate is connected with the tail end of the culture tank, the left part and the right part of the culture tank are separated by the linear guide plate to form a flow path, a drainage port is formed between the front end of the linear guide plate and the front end of the culture tank and used for circulation of algae liquid, aeration devices are arranged on two sides of the linear guide plate and connected with an air pump, the culture tanks are divided into an upper culture tank and a bottom culture tank from top to bottom, an algae outlet is arranged on the side surface of the upper culture tank, the bottom culture tank is designed into a closed-loop structure without the algae outlet, the upper layer culture pond and the bottom layer culture pond at the top are connected through a circulating pipeline, a one-way valve and a water pump are arranged on the circulating pipeline, when the aeration device operates, generated air can enable microalgae in the upper layer culture pond to flow to the algae outlet through a guide opening along a guide plate, and simultaneously stir algae liquid, enable lower layer microalgae in the upper layer culture pond to stir and turn upwards, enable the lower layer microalgae to turn to the surface layer of the liquid surface, promote air-liquid mass transfer and achieve the purpose of enabling the microalgae to be uniformly light-receiving at the same time, and when the microalgae flow into the bottom layer culture pond from the upper layer culture pond at the top in a layered manner, the algae liquid in the bottom layer culture pond is pumped back into the upper layer culture pond at the top through the circulating pipeline by the water pump, so that flowing circulation is formed.

Furthermore, the drainage groove is arranged on the algae outlet, so that the smoothness of the outflow of the microalgae is improved.

Further, the canopy is detained to all detachable setting on upper strata cultivate pond and the bottom cultivate pond, detains and sets up the splashproof mouth on the canopy, and the splashproof mouth is connected with the drainage groove, detains the canopy and can install or dismantle as required, controls the light receiving of little algae and avoids the exogenous pollution, and the splashproof mouth is used for preventing the sputtering when the algae liquid flows.

Furthermore, the front ends of the upper layer culture pond and the bottom layer culture pond are designed to be arc-shaped structures, so that the backflow of the algae liquid after impacting the pond body is prevented, and the flow of the algae liquid is facilitated.

Further, the arc-shaped guide plates are arranged at the drainage openings of the upper-layer culture pond and the bottom-layer culture pond, and the arc-shaped guide plates enable the drainage openings to form double curved channels for increasing the fluidity of the algae liquid.

When microalgae are cultivated, the aeration device is opened, the algae liquid flows from the upper layer cultivation pool at the top to the algae outlet along the linear guide plate by the air generated by the aeration device, meanwhile, under the action of the air generated by the aeration device, the algae liquid can be stirred when flowing, so that the lower layer microalgae is enabled to be overturned to the upper layer, the effect of uniformly receiving light of the microalgae is also achieved in the process of promoting gas-liquid mass transfer, when the algae liquid flows to the algae outlet, the algae liquid flows downwards layer by layer through the upper layer cultivation pool at the top through the drainage groove until flowing into the lower layer cultivation pool, finally, the algae liquid flows to the water pump under the pushing of the aeration device, and the algae liquid in the lower layer cultivation pool is pumped into the upper layer cultivation pool at the top through the water pump, so that the algae liquid forms flowing circulation between the upper layer cultivation pool and the lower layer cultivation pool, and the purpose of cultivating the microalgae is achieved.

The utility model has simple structure and low manufacturing cost, adopts a stepped mounting structure, pushes microalgae by the cooperation of the aeration device and the water pump, and cooperates with the extraction of the water pump by utilizing the air discharged by the aeration device to form flowing circulation between the upper layer culture pond and the bottom layer culture pond, and utilizes the aeration device to increase the contact area of gas and liquid, so that the lower layer microalgae are jacked upwards to roll and exchange positions with the upper layer microalgae when flowing, the effect of rolling and stirring the microalgae while flowing is achieved, the gas-liquid mass transfer process is promoted, the light inhibition phenomenon of algae is avoided, the microalgae at different layers are uniformly subjected to light, the microalgae yield is effectively improved, and the utility model has the characteristics of good gas-liquid mass transfer effect, strong light-receiving property, high microalgae yield and the like.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a schematic diagram of the structure of the upper culture pond of the utility model.

FIG. 3 is a schematic view of the structure of the bottom culture pond according to the utility model.

FIG. 4 is a schematic view of the structure of the aeration device according to the present utility model.

FIG. 5 is a schematic diagram showing the connection of the bottom culture tank and the circulation pipeline of the top upper culture tank.

FIG. 6 is a schematic view of the structure of the canopy of the present utility model.

In the figure: 1. a frame; 2. a bottom layer culture pond; 3. an upper layer culture pond; 4. buckling a shed; 5. an air pump; 6. an aeration device; 7. a drainage port; 8. a straight line deflector; 9. an algae outlet; 10. drainage grooves; 11. an arc-shaped guide plate; 12. a circulation line; 13. a water pump; 14. splash-proof mouth.

Detailed Description

The utility model will now be further illustrated by way of example, but not by way of limitation, with reference to the accompanying drawings.

In the structures shown in figures 1, 2, 3, 4, 5 and 6, the aeration microalgae culture device provided by the utility model comprises a frame 1, wherein the frame 1 is designed into a stepped structure, a plurality of culture ponds are detachably arranged on the frame 1 from top to bottom, the culture ponds are designed into a rectangular structure, a linear guide plate 8 is arranged in the culture ponds, the tail end of the linear guide plate 8 is connected with the tail end of the culture ponds, a drainage port 7 is formed between the front end of the linear guide plate 8 and the front end of the culture ponds, aeration devices 6 are arranged on two sides of the linear guide plate 8, the aeration devices 6 are connected with an air pump 5, the culture ponds are divided into an upper culture pond 3 and a lower culture pond 2 from top to bottom, a splash-proof opening 14 is detachably arranged on each of the upper culture pond 3 and the lower culture pond 2, the splash-proof opening 14 is connected with the drainage slot 10, an algae outlet 9 is arranged on the side surface of the upper culture pond 3, the algae outlet 9 is provided with a drainage slot 10, the lower culture pond 2 is designed into a closed loop structure without algae outlet, the upper culture pond 3 and the lower culture pond 2 is connected with a circulating pipeline 12 through a circulating valve 13.

The front ends of the upper layer culture pond 3 and the bottom layer culture pond 2 are designed to be arc-shaped structures.

Arc-shaped guide plates 11 are arranged at the drainage openings 7 of the upper-layer culture pond 3 and the lower-layer culture pond 2.

Depending on the scale of cultivation, a plurality of upper-layer cultivation ponds may be provided on the rack.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. An aeration type microalgae culture device is characterized in that: including the frame, the frame designs to step structure, from top to bottom detachable sets up the several and cultivates the pond in the frame, cultivate the pond design and be rectangular structure, set up sharp guide plate in cultivateing the pond, the tail end of sharp guide plate and cultivate pond tail end connection, form the drainage mouth between the front end of sharp guide plate and the front end of cultivateing the pond, set up aeration equipment in sharp guide plate both sides, aeration equipment is connected with the air pump, cultivate the pond and cultivate the pond by last upper strata down to divide into cultivateing pond and bottom, cultivate the pond side at the upper strata and set up out the algae mouth, the bottom cultivates the pond then designs to have the closed loop structure of algae mouth, the upper strata that is located the top cultivates pond and bottom cultivates the pond and pass through circulating line connection, set up check valve and water pump on circulating line.

2. The aeration microalgae culture apparatus of claim 1, wherein: and the algae outlet is provided with a drainage groove.

3. The aeration microalgae culture apparatus of claim 1, wherein: the upper layer culture pond and the bottom layer culture pond are detachably provided with a buckling shed, the buckling shed is provided with a splash-proof opening, and the splash-proof opening is connected with the drainage groove.

4. The aeration microalgae culture apparatus of claim 1, wherein: the front ends of the upper layer culture pond and the bottom layer culture pond are designed to be arc-shaped structures.

5. The aeration microalgae culture apparatus of claim 1, wherein: arc guide plates are arranged at the drainage openings of the upper layer culture pond and the bottom layer culture pond.