KR102200310B1 - Photobioreactor for cultivation of microalgae using double vertical tube and convergence building structure for agriculture and fisheries having thereof - Google Patents

Abstract

A microalgae light culture apparatus using a vertical double tube is disclosed. The microalgae light culture apparatus using a vertical double tube according to the present invention is made of a transparent material and is formed of a hollow tube and is vertically disposed, and is made of a transparent material and is formed of a hollow tube, and is located in the inner center of the outer tube. At least one vertical double pipe which is installed vertically and made of an inner pipe in which an outlet hole is formed in the upper region; Both ends are connected to the culture solution storage tank, arranged horizontally, coupled to communicate with the lower end of the vertical double tube, and at the bottom of the position corresponding to the lower end of the inner tube, for stirring while moving the culture solution upward of the inner tube. A horizontal transfer pipe in which an aeration member is provided; And a gas discharge member coupled to the upper end of the outer pipe to prevent the inflow of pollutants and to discharge gas generated from the vertical double pipe to prevent a pressure increase in the vertical double pipe, wherein the aeration member for aeration It is characterized in that the culture solution of the inner tube is moved upward and flows into the outer tube through the outlet hole, and then circulated to the culture solution storage tank through the horizontal transfer tube. According to the present invention, microalgae in the center of the microalgae culture tube are repeatedly transported to the outer tube by being configured to circulate inside the vertical double tube, so that photosynthesis can be smoothly received by receiving light, so that the microalgae are at a constant concentration. Even after cultivation, it is possible to provide the effect that each individual microalgae in the center of the inner culture tube can be cultured uniformly and smoothly.

Description

Microalgae light culture device using vertical double tube and convergence building structure for agricultural and fishery industry having same {PHOTOBIOREACTOR FOR CULTIVATION OF MICROALGAE USING DOUBLE VERTICAL TUBE AND CONVERGENCE BUILDING STRUCTURE FOR AGRICULTURE AND FISHERIES HAVING THEREOF}

The present invention relates to a microalgae light culture device using a vertical double tube and a fusion building structure for the agricultural and fishery industry having the same, and more particularly, it is possible to efficiently cultivate microalgae with a vertical double tube, such a microalgae light culture device It is not only possible to save energy, but also to a microalgae light culture apparatus using a vertical double tube that can efficiently perform microalgae cultivation and agricultural and fishery industry, and a fusion building structure for the agricultural and fishery industry having the same.

Worldwide, photosynthetic microorganisms are usefully utilized in various fields of industry, and a lot of research is being conducted to increase the utilization. In particular, photosynthetic microorganisms are being actively studied among the attention-grabbing microorganisms, and photosynthetic microorganisms are in the spotlight as an eco-friendly renewable energy source that can replace the fossil fuels currently in use such as petroleum, coal, and natural gas. It is also being newly illuminated for food and feed.

The development and improvement of strains suitable for each use of these photosynthetic microorganisms, development of culture technology to secure a large amount of microorganisms more easily, and research on harvesting suitable for use and transforming it into a final product are being actively conducted.

The currently known photosynthetic microorganism culture system uses a field culture system and a device culture system using a device, and in the case of a field culture system, although it is essential for the economic production of useful substances of photosynthetic microorganisms, temperature and light intensity control according to the season and external pollution There is a problem in that it is difficult to maintain the uniformity of the concentration of and inorganic salts, making it difficult to perform an efficient mass culture process.

Accordingly, in the case of photosynthetic spirulina in Korea, imports are dependent on problems such as sunlight and temperature due to the four seasons climate during cultivation.

In addition, in the case of a culture system using a culture device, effective illumination can be maintained and high productivity can be expected.Contamination by a closed structure as well as loss of carbon dioxide required for photosynthesis is minimal, and various factors for production are checked and controlled. Although it has an effective advantage, the growth of sparulina is deteriorating because gas exchange inside the culture pipe is not easily performed, and bubbles are generated by the culture solution as the culture solution is injected from the upper layer of the culture tank and falls to the lower side. There is a problem.

Looking at the prior art, Korean Patent Laid-Open No. 10-2010-0113179 (published date: 2010.10.21) has a tubular spirulina culture device was devised, which is a cylindrical culture tank, a gas inlet located at the bottom of the culture tank, A plurality of sensor mounting ports, a culture solution inlet, a culture solution outlet and a culture solution discharge port, a pressure control valve and a spray ball located above the culture tank, a light source and agitator located inside the culture tank, and the outside of the culture tank A culture unit equipped with an attached temperature controller, a culture solution inlet communicating with the culture solution outlet of the culture unit, a pump unit provided with a pump and a culture solution outlet, and a culture solution inlet communicating with the culture solution outlet of the pump unit, a culture with a light source attached in the longitudinal direction It consists of a pipe and a pipe portion provided with a culture solution outlet communicating with the culture solution injection port of the culture solution preparation unit.

Spirulina culture apparatus according to the prior art is expected to increase the culture efficiency by preventing spirulina from sticking to the surface of the culture apparatus, but there is a problem in that gas exchange is not easy as mentioned above. In addition, gas exchange is very important when culturing photosynthetic microorganisms in a liquid phase. In the prior art, gas exchange is not performed properly due to short distance and time due to gas exchange, and the growth of photosynthetic microorganisms is degraded by receiving a carbon source from carbon dioxide. There was this.

In addition, since the microalgae cultivation apparatus according to the prior art was cultivating microalgae in most of the culture tanks, photosynthesis was not smooth because the light required for photosynthesis was not evenly transmitted to the microalgae in the center of the culture tank. The microalgae located in the center of the tank had a problem of being killed.

In addition, the microalgae cultivation apparatus according to the prior art has a problem in that the cultivation of microalgae is smoothly performed only when a constant temperature is maintained, and a lot of energy is used for this.

. Korean Patent Publication No. 10-2010-0113179 (Publication date: 2010.10.21)

It is an object of the present invention to increase the density of microalgae in the process of culturing the microalgae, so that light does not reach the center of the culture tube, so that the microalgae culture rate reaches a certain level. In order to solve this problem, the microalgae in the center of the culture tube are continuously circulated toward the outer wall of the culture tube, and the microalgae inside the culture tube receive light evenly to provide a means to induce photosynthesis. have.

Another object of the present invention is to provide a means for efficiently controlling the temperature of the culture medium circulating through the microalgae culture tube using less energy.

Another object of the present invention is to provide a hybrid building structure for agricultural and fishery industries to which a microalgae light culture device is applied.

In addition, the problem to be solved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

The object is, according to the present invention, an outer tube made of a transparent material and formed as a hollow tube and arranged vertically, and an outer tube made of a transparent material and formed as a hollow tube, installed vertically in the inner center of the outer tube, and the upper region At least one or more vertical double pipes made of an inner pipe in which an outlet hole is formed; Both ends are connected to the culture solution storage tank, arranged horizontally, coupled to communicate with the lower end of the vertical double tube, and at the bottom of the position corresponding to the lower end of the inner tube, for stirring while moving the culture solution upward of the inner tube. A horizontal transfer pipe in which an aeration member is provided; And a gas discharge member coupled to the upper end of the outer pipe to prevent the inflow of pollutants and to discharge gas generated from the vertical double pipe to prevent a pressure increase in the vertical double pipe, wherein the aeration member for aeration In the microalgae light culture apparatus using a vertical double tube, characterized in that the culture solution of the inner tube moves upward and flows into the outer tube through the outlet hole, and then circulates to the culture solution storage tank through the horizontal transfer tube. Achieved by

Between the outer tube and the inner tube, there is provided a gap maintaining member for maintaining a constant gap between the inner tube and the inner surface of the outer tube inside the outer tube, and the gap maintaining member is formed in a ring shape and the It may be made of an external coupling portion in close contact with the inner surface of the outer pipe, an inner coupling portion formed in a ring shape to which the inner pipe is fitted, and a plurality of connection portions connecting the outer coupling portion and the inner coupling portion.

The lower end of the inner tube is maintained at a distance of 1-4 cm from the upper surface of the aeration air diffuser, and a plurality of inlet holes may be formed around the lower end of the inner tube.

The vertical double pipes are formed of a plurality of vertical double pipes and are respectively coupled to the horizontal conveying pipe by maintaining a predetermined distance, and the aeration air diffuser may be provided with a channel corresponding to the number of the vertical double pipes.

The horizontal transfer pipe having the aeration aeration member and a plurality of vertical double pipes each coupled to the horizontal transfer pipe constitute one light culture module, and an end of the horizontal transfer pipe constituting the light culture module is optional. Each of the light culture modules may be connected or separated from each other as connected or separated to increase or decrease the culture capacity of the microalgae.

Transfer pumps for circulating and transferring the culture solution may be provided at the inlet line and the outlet line of the culture solution storage tank.

The gas discharge member comprises a cover member provided with a discharge port and coupled to the upper end of each of the outer pipes, and a discharge pipe for collecting and discharging the gas discharged through each of the discharge ports by connecting the discharge ports of each of the cover members. It may be configured to be lowered or opened at a predetermined pressure, and may be formed of a relief valve provided on each of the cover members.

At the bottom of the culture medium storage tank, a first temperature control means for adjusting the temperature of the culture medium to be accommodated may be provided, and the first temperature control means may include a first heating element that generates heat by a supplied power source.

The aeration member for aeration is provided with a second temperature control means for adjusting the temperature of the circulated culture medium, and the second temperature control means includes: an air supply pipe for supplying the filtered air to the aeration member; And a second heating element configured to generate heat by the supplied power and provided in the air supply pipe.

The above object is, according to the present invention, as a fusion building structure for the agricultural and fishery industry having a microalgae light culture device using a vertical double tube, a culture space in which the microalgae light culture device is installed separated from the outside by a wall, a roof and an entrance door And, in the culture space, a third temperature control means for adjusting the temperature of the culture space or for adjusting the temperature of the culture medium circulating in the microalgae light culture device is provided in the culture space. It is achieved by a convergence building structure for the agricultural and fishery industry with equipment.

A panel for solar power generation may be installed on the roof or wall.

The third temperature control means includes: an underground heat exchange tube which is buried underground by having an inlet pipe and a water outlet pipe exposed to the culture space, and receiving heat medium oil; And an air circulation member consisting of a heat exchange unit, wherein the air inlet and the air outlet are exposed to the culture space, and the middle consists of a plurality of dividing pipes to maintain airtightness inside the underground heat exchange pipe. After flowing in and passing through the split pipe, the air discharged to the air outlet may be heat-exchanged by heat medium oil accommodated in the underground heat exchange pipe to be heated or cooled.

The third temperature control means comprises a rainwater storage tank tank configured to store rainwater collected and filtered from the eaves of the roof and buried underground; And a culture liquid circulation pipe that is branched from the microalgae light culture device and is piped inside the rainwater storage tank so that the culture liquid selectively circulates by opening and closing a valve, wherein the culture liquid circulating through the microalgal light culture device It may be configured to control the temperature of the culture medium by circulating through the culture medium circulation pipe.

The rainwater storage tank tank may further include a cooling and heating device for controlling the temperature of the stored rainwater.

The culture medium circulation pipe is composed of an underground inlet pipe provided with an inlet valve and an underground outlet pipe provided with a water outlet valve, and ends of the underground inlet pipe and the underground outlet pipe communicate with the circulation pipe of the microalgae light culture device, respectively. And, a ground circulation opening/closing valve is provided in the circulation pipe between the underground inlet pipe and the underground outlet water pipe, and the culture liquid circulating through the microalgae light culture apparatus is the inlet valve, the water outlet valve, and the ground circulation opening/closing valve. The temperature can be controlled by heat exchange while circulating the culture medium circulation pipe.

The object is, according to the present invention, a roof with a panel for solar power generation and a building structure comprising a wall forming a wall, the wall is made of a glass greenhouse forming a side wall culture space, the glass In the side wall culture space formed by the greenhouse, a transparent culture tube through which the culture solution for cultivation of microalgae circulates is continuously installed in a vertical or horizontal direction, and each end of the transparent culture tube has a circulation pump and is connected to the culture solution storage tank. It is achieved by a convergence building structure for the agricultural and fishery industry having a microalgae light culture device, characterized in that.

In the interior of the building structure, a device for hydroponic cultivation, a device for plant cultivation, a device for aqua phonics or aquaculture is provided, and hydroponic cultivation, plant cultivation, aqua phonics or aquaculture may be made.

Inside the building structure, a fourth temperature control means for adjusting the air temperature of the inner space and the side wall culture space of the building structure is provided, and the fourth temperature control means is buried in the basement of the building structure, and the entrance And the outlet is an underground buried pipe for heating and cooling exposed to the inner space or the side wall culture space; And an air heating/cooling device provided at the inlet or outlet to heat or cool the air circulated to the underground buried pipe for cooling and heating by a blower.

The underground buried pipe for cooling and heating may be disposed on the bottom of the rainwater storage tank or aquaculture tank when the rainwater storage tank or aquaculture tank is buried.

The above object is, according to the present invention, as a building structure consisting of an indoor or outdoor land aquaculture, aquaculture tank in which the upper part is opened and the rest except for the upper part area is buried; A plurality of pillar members provided in the upper portion of the fish tank; Panels provided on upper ends of the pillar members to form a roof and configured to generate solar power; And a culture medium storage tank in which a culture medium circulating through the microalgal culture tubes is stored, with microalgal culture tubes arranged horizontally or vertically at the edge of the farm tank to form a wall, and connected to the microalgal culture tubes. It is achieved by a convergent building structure for the agricultural and fishery industry having a microalgae light culture device, characterized in that it comprises a microalgae light culture device made of.

At the bottom of the panels, eaves are provided to prevent rainwater from entering the aquaculture tank, and rainwater collected by the eaves is filtered and accommodated in a rainwater storage tank buried underground, and if necessary, the farm It can be supplied in a water tank or configured for use as agricultural water.

According to the present invention, since the microalgae are configured to circulate inside the vertical double tube, light can easily reach the center of the microalgae culture tube, and photosynthesis can be performed even at the center, so that each microalgae individual can be cultured uniformly and smoothly. It will be able to provide. That is, since the microalgae in the inner tube are repeatedly circulated to the outer tube, light is evenly received to facilitate photosynthesis, thereby providing an effect that each individual microalgae can be cultured uniformly and smoothly.

In addition, since the temperature of the culture medium or the culture space circulating through the microalgae culture tube is controlled by geothermal heat, it is possible to provide an effect of controlling the temperature with little energy.

In addition, it is possible to provide an effect of providing a microalgae light culture device, a panel for solar power generation, and a fusion building structure for the agricultural and fishery industry to utilize rainwater.

1 is a schematic configuration diagram showing a microalgae light culture apparatus using a vertical double tube according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view showing the vertical double pipe shown in FIG. 1.
3 is a perspective view showing a state in which the vertical double tube and the horizontal transfer tube shown in FIG. 1 form one light culture module, and each light culture module is connected.
FIG. 4 is a bottom perspective view showing a pipe of an aeration air diffuser provided on a bottom surface of each light culture module shown in FIG. 3.
5 is a schematic configuration diagram showing a state in which each light culture module shown in FIG. 3 is connected to a culture medium storage tank.
6 is a perspective view showing the microalgae light culture apparatus using the vertical double tube shown in FIG.
7 is a bottom perspective view of the culture solution storage tank showing a first temperature control means provided in the culture solution storage tank shown in FIG. 1.
8 is a schematic configuration diagram illustrating a second temperature control means provided in the aeration member for aeration shown in FIG. 1.
9 is a schematic diagram showing the construction of a fusion building structure for the agricultural and fishery industry having a microalgae light culture apparatus using a vertical double tube according to the present invention.
10 is a schematic cross-sectional view for explaining a third temperature control means provided in the integrated building structure for agricultural and fishery industry shown in FIG.
11 is a schematic perspective view showing a third temperature control means shown in FIG. 10.
12 and 13 are schematic configuration diagrams showing another embodiment of the third temperature control means shown in FIG. 10.
14 (a) and (b) are schematic diagrams showing the construction of a fusion building structure for the agricultural and fishery industry having a microalgae light culture apparatus according to another embodiment of the present invention.
15A and 15B are schematic configuration diagrams showing another embodiment of the fusion building structure for the agricultural and fishery industry shown in FIG. 14.
16 is a schematic cross-sectional view for explaining a fourth temperature control means of the integrated building structure for the agricultural and fishery industry shown in FIG. 14.
17 and 18 are schematic diagrams showing the construction of a fusion building structure for the agricultural and fishery industry having a microalgae light culture apparatus according to another embodiment of the present invention.
19 is a schematic configuration diagram for explaining a state in which the microalgae light culture apparatus and the building structure according to the present invention are remotely controlled.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, a description of a function or configuration that is already known will be omitted in order to clarify the gist of the present invention.

In the accompanying drawings, FIG. 1 is a schematic configuration diagram showing a microalgae light culture apparatus using a vertical double tube according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a vertical double tube shown in FIG. 1, 3 is a perspective view showing a state in which the vertical double tube and the horizontal transfer tube shown in FIG. 1 form one light culture module, and each light culture module is connected. In addition, FIG. 4 is a bottom perspective view showing the piping of the aeration aeration member provided on the bottom of each light culture module shown in FIG. 3, and FIG. 5 is a state in which each light culture module shown in FIG. 3 is connected to a culture solution storage tank It is a schematic configuration diagram representing, and FIG. 6 is a perspective view showing a microalgae light culture apparatus using a vertical double tube shown in FIG. 5.

As shown in FIGS. 1 to 6, the microalgae light culture apparatus 10 using a vertical double tube according to the present invention includes a vertical double tube 20 and a horizontal transfer tube 30 and a culture solution storage tank 40 After the culture solution of the inner tube 22 is moved upward by the aeration member 50 for aeration provided in the horizontal transfer tube 30, the outer tube 24 is introduced through the outlet hole 22A. It is to be circulated to the culture medium storage tank 40 through the horizontal transfer pipe (30).

The microalgae light culture apparatus 10, after the culture liquid flows from the horizontal transfer tube 30 to the inner tube 22, moves upward, and circulates again through the outer tube 24 to the horizontal transfer tube 30. When the microalgae are cultured at a certain concentration, each individual can be uniformly cultured in the vertical double tube 20 by compensating for the disadvantage of not reaching the inner center of light so that each individual microalgae can receive light uniformly and perform photosynthesis. You will be able to.

The microalgae light culture apparatus 10 will be described in more detail.

The vertical double tube 20 is made of a transparent material and is formed of a hollow tube to be vertically disposed, and is made of a transparent material. It is formed as a high hollow tube, is vertically installed in the inner center of the outer tube 24, and consists of an inner tube 22 in which an outlet hole 22A is formed in the upper region. Such a vertical double pipe 20 may be composed of one, but in the present embodiment, a description will be made based on a plurality of units.

The diameter or length of the outer tube 24 and the inner tube 22 described above is formed differently according to the scale of the microalgae light culture apparatus 10, and in this embodiment, the diameter of the outer tube 24 is 140 mm, The diameter of the inner tube 22 is described based on that made of 70 mm, and the inner tube 22 and the outer tube 24 are made of transparent plastic (PE or PC, PP, acrylic, etc.) material.

In this way, the vertical double tube 20 constitutes a double tube of the inner tube 22 and the outer tube 24 and is arranged vertically. In order to facilitate the photosynthetic action of microalgae, the microalgae in the inner tube 22 are horizontal Each individual microalgae receives light evenly by repeatedly circulating to the outer tube 24 through the outlet hole 22A at the upper end of the inner tube 22 by the aeration member 50 provided in the transfer tube 30. This is to ensure that photosynthetic action is uniformly performed smoothly. In addition, the aeration member 50 for aeration is for smoothly agitating the culture solution of the inner tube 22 with the culture solution of the outer tube 24 while the aeration air rises upwardly inside the inner tube 22 during operation. .

As shown in FIG. 2, between the outer tube 24 and the inner tube 22, the inner tube 22 maintains a constant distance from the inner surface of the outer tube 24 inside the outer tube 24. A plurality of space holding members 26 are provided for. The spacing member 26 is formed in a ring shape and is in close contact with the inner surface of the outer tube 24, an outer coupling portion 26A, and an inner coupling portion 26B formed in a ring shape to which the inner tube 22 is fitted. And, it consists of a plurality of connecting ribs (26C) connecting the external coupling portion (26A) and the inner coupling portion (26B). Since the plurality of spacing members 26 configured as described above are installed between the outer tube 24 and the inner tube 22, the inner tube 22 and the outer tube 24 maintain a constant distance.

On the other hand, the lower end of the inner tube 22, as shown in Figure 1 to maintain a gap of 1-4 cm from the upper surface of the aeration air diffuser 50, a plurality of inflow around the lower end of the inner tube 22 A ball 22B is formed. This coupling structure is to allow the aeration air to flow smoothly into the inner tube 22 when the aeration air diffuser 50 is operated. In particular, by making the gap between the lower end of the inner tube 22 and the aeration air diffuser 50 less than 3 cm, and forming inlet holes 22B having a diameter of 1.2 to 1.5 cm at a position of 2-3 cm upward from the lower end, When the aeration aeration member 50 is operated, the aeration air flows smoothly into the inner tube 22 and moves upward, and at the same time, the culture solution flows into each inlet hole 22B to move upward of the inner tube 22. have.

In addition, with this structure, the culture solution located at the bottom of the horizontal transfer tube 30 moves to the inner tube 22, and the culture solution discharged from the outer tube 24 may circulate to the culture solution storage tank 40.

The horizontal transfer pipe 30 is connected to the culture liquid storage tank 40 at both ends to circulate the culture liquid, and is disposed horizontally and coupled to communicate with each lower end of the vertical double pipes 20. That is, the lower end of the outer pipe 24 constituting the vertical double pipe 20 is coupled to communicate with the upper surface of the horizontal transfer pipe 30, and the inner pipe 22 has the lower end of the aeration air diffuser 50 installed on the inner floor. It is installed close to In addition, at the bottom of the horizontal transfer pipe 30 at a position corresponding to the lower end of the inner pipe 22, an aeration aeration member 50 for stirring while moving the culture solution introduced into the inner pipe 22 upward is provided.

This horizontal transfer pipe 30 serves to circulate and temporarily accommodate the culture medium, and serves to vertically support a plurality of vertical double pipes (20). In addition, it serves as a structure in which the aeration air diffuser 50 is installed.

The aeration member 50 forcibly discharges air and serves to transfer the culture solution upward while stirring, and is provided at the bottom of the horizontal transfer pipe 30 in a channel corresponding to the number of each inner tube 22 Aeration air outlets 52 for discharging the supplied aeration air, aeration pipe 54 connecting each aeration air outlet 52, and aeration air to the aeration pipe 54 It includes an aeration air generator 56 for forced supply. At this time, the lower end of each inner tube 22 is installed close to the upper surface of the aeration air outlet 52.

The air for aeration is discharged to the inner tube 22 by the aeration member 50 for aeration and moves upward while stirring the culture solution and at the same time transferring the culture solution upward, and also controlling the temperature of the culture solution. Is done. That is, by lowering or discharging the temperature of the air for aeration to a required temperature or raising it, the temperature of the culture liquid in contact with the air for aeration may decrease or increase.

The above-described vertical double pipe 20 is formed of a plurality of vertically coupled to the horizontal transfer pipe 30 by maintaining a predetermined interval, and the aeration air outlet 52 of the aeration air diffuser 50 is each vertical double pipe 20 ) And the corresponding number respectively.

In addition, a horizontal transfer pipe 30 provided with the aeration aeration member 50 and a plurality of vertical double pipes 20 respectively coupled to the horizontal transfer pipe 30 form one light culture module (M).

The light culture module M having such a structure may be used alone, or as shown in FIG. 3, a plurality of light culture modules M may be connected in series to form one culture system.

In particular, as the ends of the horizontal transfer pipe 30 constituting the light culture module M are selectively connected or separated, each light culture module M is connected or separated from each other to increase or decrease the culture capacity of microalgae. do. That is, when microalgae are cultivated on a small scale, one or two to three light culture modules (M) are connected, and when microalgae are cultured on a large scale, three or more light culture modules (M) are connected. You can achieve your purpose.

In this way, the light culture module (M) can be configured, in which the microalgae light culture apparatus 10 according to the present invention has a horizontal transfer tube 30 and a plurality of vertical double tubes independent of the horizontal transfer tube 30 ( This is possible because they are vertically arranged and combined.

The gas discharge member 60 is to cover the upper end of the vertical double pipe 20 to block the inflow of foreign substances and to discharge the gas and aeration air generated in the vertical double pipe 20, and the outer pipe 24 It is bonded to the upper end to prevent the inflow of pollutants including foreign substances, and discharges gas and aeration air generated in the inner tube 22 and the outer tube 24 of the vertical double tube 20 to discharge the pressure inside the vertical double tube 20 It is configured to prevent rising.

As shown in FIG. 1, the gas discharge member 60 includes a cover member 62 that is coupled to the upper end of each of the outer pipes 24 by having a discharge port 62A, and each of the cover members 62 It consists of a discharge pipe 64 for collecting and discharging the gas discharged through each discharge port 62A by connecting the discharge port 62A. Each of the cover members 62 is provided with a packing and is coupled to each of the outer pipes 24, so that gas and aeration air may be prevented from leaking to an unintended area. As described above, each of the discharge ports 62A is connected to the discharge pipe 64, so that gas and aeration air can be prevented from being discharged to an unintended area.

Meanwhile, as shown in FIG. 3, the gas discharge member 60 may be configured to be opened at a predetermined pressure and may include a relief valve 66 provided in each of the cover members 62. As the gas discharge member 60 is configured as the relief valve 66 as described above, piping work of the discharge pipe 64 for connecting the discharge port 62A of each cover member 62 may be eliminated.

The culture medium storage tank 40 is for storing the culture liquid circulating through the horizontal transfer pipe 30 and circulating again, and has a transparent window. This culture medium storage tank 40 is provided with a stirrer 43 operated by a motor in the center of the inside, and an automatic opening/closing valve 45 that opens when the internal air pressure rises to a predetermined pressure is installed at the top, and a light culture module ( An inlet line 42A through which the culture solution circulated M) flows into and an outlet line 42B through which the stored culture solution is circulated back to the light culture module M are provided. At this time, in the inlet line 42A and the outlet line 42B of the culture solution storage tank 40, a transfer pump 44 for circulating and transferring the culture solution is provided, respectively. The process of circulating the culture medium through each light culture module M may be smoothly performed by the transfer pump 44. At this time, the transfer pump 44 installed in the inlet line 42A serves to pull the culture solution, and the transfer pump 44 installed in the outlet line 42B serves to push the culture solution. This is to prevent the horizontal transfer pipe 30 from being damaged by hydraulic pressure when the transfer pump only serves to push, and the culture medium in the horizontal transfer pipe 30 circulates smoothly at a constant speed so that microalgae are transferred horizontally. It is to prevent being settled on the bottom of the pipe 30 and killed.

On the other hand, in the culture medium storage tank 40, a temperature sensor 41 for detecting the temperature inside the culture medium storage tank 40, a carbon dioxide sensor for measuring the amount of carbon dioxide, and a PH sensor for measuring PH And, a manipulation unit 46 having a display capable of confirming a result detected and measured by these sensors is provided on the outside. Of course, the operation unit has a function of supplying and cutting power and controlling various sensors. In addition, a valve 47 (a type of aerator) capable of supplying carbon dioxide is mounted at the lower end (bottom) of the culture solution storage tank 40, and a sample outlet 48 through which the culture solution can be collected as a sample is provided with a valve. And, an outlet 49 for harvesting microalgae by discharging the culture solution to the harvester is provided with a valve.

On the other hand, although the microalgae differs depending on the type, the survival temperature is approximately 10-40 ℃. For this purpose, a means for properly maintaining the temperature of the circulating or stored culture medium is provided on the bottom of the culture medium storage tank 40. That is, the first temperature control means (80A) for controlling the temperature of the culture medium accommodated in the culture medium storage tank 40 is provided. The first temperature control means 80A is made of a first heating element 82A made of a heating wire or the like that generates heat by a supplied power source. As such, the first heating element 82A is installed on the bottom of the culture solution storage tank 40 as shown in FIG. 7, so that the culture solution stored in the culture solution storage tank 40 is controlled by controlling the first heating element 82A in winter. It becomes possible to increase the temperature of.

Of course, when a cooling device is installed on the bottom of the culture medium storage tank 40, the temperature of the culture medium stored in the culture medium storage tank 40 may be lowered in the summer.

Meanwhile, another embodiment for controlling the temperature of the circulating culture medium is shown in FIG. 8. As shown in Fig. 8, the aeration member 50 for aeration is provided with a second temperature control means 80B for adjusting the temperature of the circulating culture medium. The second temperature control means 80B is configured to generate heat by an air supply pipe 84A for supplying the filtered air to the aeration air diffuser 50, and the supplied power supply to the air supply pipe 84A. It consists of the provided 2nd heating element 84B. At this time, one end of the air supply pipe 84A is connected to the aeration pipe 54, and the other end of the air supply pipe 84A is connected to the aeration air generator 56 for forcibly supplying the aeration air. Accordingly, when the aeration air generator 56 is operated while the second heating element 84B is heated, the air heated by the second heating element 84B is transferred to the inner tube 22 through the aeration air discharge port 52. Since it is supplied, the temperature of the circulated culture medium can be adjusted, and in particular, the second temperature control means 80B can be used in winter. Of course, when a cooling device is installed in the air supply pipe 84A, since cooled air is supplied through the aeration air outlet 52, it can be usefully utilized to lower the temperature of the culture solution in the summer.

Microalgae light culture apparatus 10 using a vertical double tube according to the present invention configured as described above operates as follows.

As shown in Fig. 1, the culture solution is supplied to the horizontal transfer pipe 30 by the operation of the transfer pump 44 installed in the inlet line 42A and the outlet line 42B of the culture solution storage tank 40 and then again. It is introduced into the culture medium storage tank 40. When the culture solution circulates through the horizontal transfer pipe 30 in this way, the air for aeration is discharged to the inner tube 22 by each aeration air outlet 52, so that some of the culture solution flows into the inner tube 22 and then upwards. It is transferred and stirred at the same time.

Subsequently, the microalgae of the culture medium transferred upward from the inside of the inner tube 22 are grown by photosynthetic action by light flowing through the outer tube 24 and the inner tube 22.

Meanwhile, the culture solution containing microalgae grown while moving upward of the inner tube 22 flows into the outer tube 24 through an outlet hole 22A formed at the upper end of the inner tube 22. The culture medium introduced into the outer pipe 24 is again introduced into the horizontal transfer pipe 30 and circulates, some of which are circulated back to the neighboring inner pipe 22, and the remaining portions are circulated to the culture medium storage tank 40.

In this way, microalgae are cultivated in a process in which the culture solution circulates through each light culture module M, and the microalgae can be harvested from the culture solution introduced into the culture solution storage tank 40. In particular, the vertical double tube 20 in which the microalgae are cultured consists of an inner tube 22 and an outer tube 24 and is vertically installed, so that the culture solution of the inner tube 22 is circulated to the outer tube 24 and thus the vertical double tube 20 )(Inner tube) By receiving light evenly to the microalgae in the center, photosynthesis of microalgae can be made uniformly and smoothly, and the light culture module (M) can be configured so that the amount of microalgae culture can be adjusted according to the conditions. You will be able to.

In the accompanying drawings, FIG. 9 is a schematic diagram showing the construction of a fusion building structure for the agricultural and fishery industry having a microalgae light culture device using a vertical double tube according to the present invention, and FIG. 10 is a fusion building for the agricultural and fishery industry shown in FIG. It is a schematic cross-sectional view for explaining the third temperature control means provided in the structure, and Figure 11 is a schematic perspective view showing the third temperature control means shown in FIG.

As shown in FIGS. 9 to 11, a fusion building structure 100 for the agricultural and fishery industry having the microalgae light culture apparatus 10 using the above-described vertical double pipe is provided.

Convergence building structure 100 for agriculture and fishery industry is separated from the outside by a wall 110, a roof 120 and an entrance door to form a culture space (S) in which the microalgae light culture device 10 is installed, and a culture space ( S) is provided with a third temperature control means (80C) for adjusting the temperature of the culture space (S) or to control the temperature of the culture medium circulating the microalgae light culture device (10).

At this time, the light culture module M constituting the microalgae light culture device 10 may be installed in the culture space S, but as shown in FIG. 12, the side wall culture space S2 formed on the wall 110 ) Can be installed. In this case, the light culture module M may be installed vertically or horizontally, and the side wall culture space S2 may be made of a transparent glass wall or a vinyl wall so that light for photosynthesis of microalgae is transmitted. In addition, the culture space (S) or the wall culture space (S2) is provided with illumination (L) (LED illumination) for photosynthesis of microalgae even on cloudy days or at night. The electricity used in the lighting L is produced by the solar panel P of the roof 120.

Convergence building structure 100 for the agricultural and fishery industry is made of a glass greenhouse or a vinyl greenhouse, and the above-described microalgae light culture apparatus 10 is installed in the culture space (S). In addition, a panel for solar power generation is installed on the roof 120 or the wall 110. This photovoltaic panel (P) is for producing the power required by the convergence building structure 100 for the agricultural and fishery industry and the microalgae light culture device (10).

And, the third temperature control means (80C), as shown in Figures 9 to 11, provided with an inlet pipe (86A) and a water outlet pipe (86B) exposed to the culture space (S) is buried underground, The underground heat exchange pipe (86C) in which the heat medium oil is accommodated, the air inlet (87A) and the air outlet (87B) are exposed to the culture space (S), and the middle consists of a plurality of split pipes (87C). ) Consists of an air circulation member 87E consisting of a heat exchanger unit 87D that is coupled by maintaining airtightness in the interior. At this time, it is preferable that a blower is provided at the air inlet 87A and the air outlet 87B for smooth circulation of air.

The third temperature control means (80C) having such a structure is a heat medium in which the air introduced through the air inlet 87A and discharged to the air outlet 87B after passing through each divided pipe 87C is accommodated in the underground heat exchange pipe 86C. The temperature of the culture space S may be controlled by being heat-exchanged by oil and being heated or cooled and then discharged to the culture space S through the air outlet 87B again. At this time, the temperature of the air discharged to the air outlet 87B may vary according to the temperature of the heat medium oil. However, since the underground heat exchange pipe (86C) is buried underground, the temperature of the heat medium oil contained in the underground heat exchange pipe (86C) by geothermal heat can always be kept constant. In other words, it can maintain a temperature of about 15-25℃ even in winter or summer.

In this way, the temperature of the culture space (S) is adjusted to a temperature suitable for cultivation of microalgae by the third temperature control means (80C) using geothermal heat, so that electric energy and other fossils to control the temperature of the culture space (S) The use of fuel can be significantly reduced. In particular, electricity is generated by the solar panel P provided on the wall 110 or the roof 120, and the power used for the agricultural and fishery fusion building structure 100 is itself generated by the solar panel P. By being produced, energy saving can be achieved.

Meanwhile, the third temperature control means 80C may be configured as shown in FIGS. 12 and 13.

That is, the rainwater storage tank 88A, which is configured to store the filtered rainwater collected from the eaves of the roof 120 and is buried underground, and the microalgae light culture device 10, diverge from the opening and closing of the valve so that the culture solution is It consists of a culture solution circulation pipe (88B) piped inside the rainwater storage tank (88A) to selectively circulate. In this case, a filtering device 88C for filtering rainwater is provided between the eaves and the rainwater storage tank 88A. In addition, the rainwater storage tank 88A further includes a cooling/heating device 88D for controlling the temperature of the stored rainwater. The cooling and heating device 88D increases the temperature of rainwater stored in winter and lowers the temperature of rainwater stored in summer, so that the temperature of the culture solution circulating in the culture solution circulation pipe 88D can be uniformly adjusted to a set temperature.

On the other hand, the culture medium circulation pipe (88B) is made of an underground intake pipe (88B-1) equipped with an inlet valve (B1) and an underground outlet pipe (88B-2) equipped with a water outlet valve (B2), and the underground intake pipe Each end of the (88B-1) and the underground outlet pipe (88B-2) communicates with the circulation pipe 31 (the pipe connected to the horizontal transfer pipe) of the microalgae optical culture apparatus 10, respectively, and the underground intake pipe 88B A ground circulation opening/closing valve B3 is provided in the circulation pipe 31 between the -1) and the underground water outlet pipe 88B-2. Therefore, the culture medium circulating the microalgae light culture device 10 is heat-exchanged while circulating the culture medium circulation pipe 88B according to the opening and closing of the inlet valve B1, the outlet valve B2, and the ground circulation opening/closing valve B3. Is adjusted.

With this structure, the culture solution circulating through the microalgae light culture apparatus 10 is circulated through the culture solution circulation pipe 88B, so that the temperature of the culture solution can be controlled.

In the accompanying drawings, (a) and (b) of FIG. 14 are schematic diagrams showing the construction of a fusion building structure for the agricultural and fishery industry having a microalgae light culture apparatus according to another embodiment of the present invention.

As shown in Fig. 14, the agricultural and fishery fusion building structure 100 having the microalgae light cultivation apparatus 10 according to another embodiment is a roof 120 provided with a panel P for solar power generation. And, it includes a wall 110 forming a wall surface. In addition, the wall 110 is made of a glass greenhouse 112 forming the side wall culture space (S2), and in the side wall culture space (S2) formed by the glass greenhouse 112, a culture solution for culturing microalgae circulates The transparent culture tube 35 is continuously installed in a vertical or horizontal direction. And, each end of the transparent culture tube 35 is the same as the above-described inventions except that it has a structure connected to the culture medium storage tank 40 provided with a circulation pump.

In this case, the transparent culture tube 35 may be formed of a vertical double tube 20 as shown in FIG. 1.

In this way, since the wall surface of the building structure 100 is made of the glass greenhouse 112 forming the side wall culture space (S2), light is transmitted from the outside to facilitate the culture of microalgae, and the interior of the building structure 100 Electric energy for lighting can be saved.

In addition, since the wall 110 of the building structure 100 is made of a glass greenhouse 112 forming the side wall culture space (S2), the heat insulation effect is maximized, and thus energy for heating in winter and energy for cooling in summer are remarkably You can save a lot.

In particular, since the transparent culture tube 35 of the microalgae light culture apparatus 10 is made of the glass greenhouse 112, the culture space S of the building structure 100, that is, the interior can be utilized for various purposes. For example, as shown in (a) and (b) of Fig. 15, a device for hydroponic cultivation, a device for plant cultivation, a device for aquaponics or aquaculture is installed inside the building structure 100 Hydroponic cultivation, plant cultivation, aquaponics or aquaculture can be done.

However, it is not limited thereto, and the interior of the architectural structure 100 can be used for a wide variety of purposes, such as a space for aquaculture or various plant cultivation, as well as a space for office work and other living spaces.

At this time, as shown in Figure 16, the building structure 100 is provided with a fourth temperature control means (80D).

That is, the interior of the building structure 100, the fourth temperature control means (80D) for controlling the air temperature of the inner space (S3) and the culture space (S2) of the building structure 100 is provided, and the fourth temperature The adjusting means (80D) is buried in the basement of the building structure (100), and the inlet (89B) and the outlet (89C) are exposed to the inner space (S3) or the side wall culture space (S2) for cooling and heating underground buried pipe (89A) ), and an air heating and cooling device 89E provided at the inlet 89B or the outlet 89C to heat or cool the air circulated to the underground buried pipe 89A for cooling and heating by the blower 89D. .

At this time, the underground buried pipe 89A for cooling and heating is disposed on the bottom of the rainwater storage tank 88A or the aquaculture tank 130 when the rainwater storage tank 88A or the aquaculture tank 130 is buried. . This is to ensure that the air circulating through the underground buried pipe 89A for cooling and heating is exchanged with rainwater or water for aquaculture affected by geothermal heat at the bottom of the rainwater storage tank 88A or the aquarium 130 . In this case, energy for operating the air heating/cooling device 89D can be saved.

In addition, electric energy for air heating and cooling device 89E or microalgae light cultivation device 10, and other crop cultivation and aquaculture operations is produced by the solar panel P provided on the roof 120, and air conditioning and heating. Since the underground buried pipe 89A is affected by geothermal heat, the electric energy used in the building structure 100 is minimized and can be saved.

In the accompanying drawings, FIGS. 17 and 18 are schematic diagrams showing the construction of a fusion building structure for the agricultural and fishery industry having a microalgae light culture apparatus according to another embodiment of the present invention.

As shown in Figs. 17 and 18, the agricultural and fishery fusion building structure 100 having a microalgae light culture device according to another embodiment is the embodiment described above except that it is made of an indoor or outdoor land farm Same as

That is, the building structure 100 according to another embodiment has an open top and a plurality of fish tanks 130 provided in the upper end 132 of the fish farm tank 130 in which the rest is buried except for the upper end area. The pillar members 140 and the panel P, which is provided on the upper end of the pillar members 140 to form the roof 120, and configured to generate solar power, and in a horizontal direction or in the edge region of the fish farm tank 130 The microalgae culture tubes 27 are arranged in a vertical direction to form a wall, and the culture solution storage tank 40 is connected to the microalgae culture tubes 27 to store the culture solution circulating through the microalgae culture tubes 27. It includes the microalgae light culture device 10 made.

And, on the bottom of the panels (P), an eave 135 is provided to prevent rainwater from flowing into the aquaculture tank 130, and rainwater collected by the eaves 135 is filtered and then buried underground is stored. It is accommodated in the water tank tank 88A.

The architectural structure 100 for indoor or outdoor aquaculture constructed as described above is composed of microalgae culture tubes 27 having a function for culturing microalgae in the wall 110, so that aquaculture and microalgal culture Not only can it be achieved at the same time, but also energy saving can be achieved by producing and supplying power required for aquaculture and microalgae cultivation from the panel P of the roof 120.

In addition, rainwater stored in the rainwater storage tank 88A can be supplied to the aquaculture tank 130 or used as agricultural water as needed, thereby saving water.

In addition, the microalgae light culture device 10 may be provided in the building structure 100 to provide microalgae harvested from the microalgae light culture device 10 as feed (feed) for aquatic organisms to be cultured.

Meanwhile, the microalgae light culture apparatus 10 and the building structure 100 described above may be remotely controlled by a control device. For example, as shown in Fig. 19, the microalgae light culture device 10 and the solar power generation device and the power storage device by the solar panel P of the building structure 100, the control device 200 And the remote management server 300 and the control device 200 are configured to exchange data with each other by the communication unit 400 including wireless communication, etc., so that the manager can remotely transmit the microalgae light culture device ( 10) and the building structure 100 can be controlled.

In addition, the administrator may control the microalgae light culture device 10 and the building structure 100 while moving from a distance after accessing the management server 300 using the portable terminal 500 equipped with a remote management control application. There will be.

In the above, although specific embodiments of the present invention have been described and illustrated, the present invention is not limited to the described embodiments, and various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have. Accordingly, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and the modified embodiments should be said to belong to the claims of the present invention.

10: microalgae culture device 20: vertical double tube
30: horizontal transfer pipe 40: culture medium storage tank
50: aeration aeration member 60: gas discharge member
80A: first temperature control means 80B: second temperature control means
80C: third temperature control means 80D: fourth temperature control means
88A: Rainwater storage tank tank
100: building structure 110: wall
120: roof 130: aquaculture tank

Claims (21)

An outer tube made of a transparent material and formed as a hollow tube and disposed vertically, and an outer tube made of a transparent material and formed as a hollow tube, installed vertically in the inner center of the outer tube, and an outlet hole is formed in the upper area, and a number of At least one or more vertical double pipes consisting of inner pipes each of which is formed with four inlet holes;
Both ends are connected to the culture medium storage tank and arranged horizontally, the lower end of the outer tube of the vertical double tube is coupled to communicate with the upper surface, and the lower end of the inner tube is installed to extend close to the bottom, and corresponding to the inner tube At the bottom of the position, an aeration member for stirring while moving the culture solution upward of the inner tube is provided, but the distance between the lower end of the inner tube and the upper surface of the aeration member is horizontally provided by maintaining 1-4cm Conveying pipe; And
A gas discharge member coupled to the upper end of the outer pipe to prevent inflow of pollutants and to discharge gas generated from the vertical double pipe to prevent an increase in pressure inside the vertical double pipe,
The culture medium of the inner tube is moved upward by the aeration member for aeration, the outer tube is introduced through the outlet hole, and then circulated to the culture solution storage tank through the horizontal transfer tube,
Between the outer tube and the inner tube,
The inner tube is provided with a gap maintaining member for maintaining a constant distance from the inner surface of the outer tube inside the outer tube, and the gap maintaining member is formed in a ring shape and is in close contact with the inner surface of the outer tube. It consists of a portion, an inner coupling portion formed in a ring shape to which the inner tube is fitted, and a plurality of connecting ribs connecting the outer coupling portion and the inner coupling portion,
In the aeration air diffuser member,
A second temperature control means for adjusting the temperature of the circulated culture medium is provided, and the second temperature control means includes: an air supply pipe for supplying filtered air to the aeration air diffuser; And it is configured to generate heat by the supplied power, characterized in that consisting of a second heating element provided in the air supply pipe,
Microalgae light culture device using vertical double tube. delete delete The method of claim 1,
The vertical double pipe,
Consisting of a plurality, each coupled to the horizontal transfer pipe by maintaining a predetermined interval, the aeration air diffuser member is characterized in that each provided with a number corresponding to the number of the vertical double pipe,
Microalgae light culture device using vertical double tube. The method of claim 4,
The horizontal transfer pipe having the aeration aeration member and a plurality of vertical double pipes each coupled to the horizontal transfer pipe constitute one light culture module, and an end of the horizontal transfer pipe constituting the light culture module is optional. In accordance with the connection or separation, each of the optical culture modules is connected or separated from each other to increase or decrease the culture capacity of the microalgae,
Microalgae light culture device using vertical double tube. The method of claim 5,
In the inlet line and outlet line of the culture solution storage tank, a transfer pump for circulating and transferring the culture solution is provided, respectively,
Microalgae light culture device using vertical double tube. The method of claim 4,
The gas discharge member,
A cover member having an outlet and coupled to the upper end of each of the outer pipes, and a discharge pipe for collecting and discharging the gas discharged through each of the outlets by connecting the outlets of the cover members, or
It is configured to open at a predetermined pressure, characterized in that consisting of a relief valve provided in each of the cover member,
Microalgae light culture device using vertical double tube. The method of claim 1,
On the bottom of the culture medium storage tank,
A first temperature control means for adjusting the temperature of the culture medium to be accommodated is provided, and the first temperature control means comprises a first heating element that generates heat by a supplied power source,
Microalgae light culture device using vertical double tube. delete A fusion building structure for the agricultural and fishery industry having a microalgae light culture device using a vertical double tube according to any one of claims 1, 4 to 8,
It is separated from the outside by a wall, a roof, and an entrance door to form a culture space in which the microalgae light culture device is installed, and in the culture space, the temperature of the culture space is adjusted or the culture solution circulating the microalgal light culture device is Characterized in that the third temperature control means for controlling the temperature is provided,
Convergence building structure for agricultural and fishery industry with microalgae light culture device. The method of claim 10,
On the roof or wall,
Characterized in that the panel for solar power generation is installed,
Convergence building structure for agricultural and fishery industry with microalgae light culture device. The method of claim 10,
The third temperature control means,
An underground heat exchange tube which is buried underground with an inlet pipe and an outlet pipe exposed to the culture space, and accommodates heat medium oil; And
The air inlet and the air outlet are exposed to the culture space, and the middle consists of a plurality of divided pipes, and consists of an air circulation member consisting of a heat exchange part that is coupled by maintaining airtightness inside the underground heat exchange pipe,
The air introduced into the air inlet and passed through the split pipe and then discharged to the air outlet is heat-exchanged by heat medium oil accommodated in the underground heat exchange pipe to be heated or cooled,
Convergence building structure for agricultural and fishery industry with microalgae light culture device. The method of claim 10,
The third temperature control means,
A rainwater storage tank tank configured to store rainwater collected and filtered from the eaves of the roof and buried underground; And
It consists of a culture liquid circulation pipe branched from the microalgae light culture device and piped into the interior of the rainwater storage tank so that the culture liquid selectively circulates by opening and closing a valve,
Characterized in that the culture solution circulating through the microalgae optical culture device is circulated through the culture solution circulation tube to control the temperature of the culture solution,
Convergence building structure for agricultural and fishery industry with microalgae light culture device. The method of claim 13,
The rainwater storage tank tank,
It characterized in that it further comprises a cooling device for controlling the temperature of the stored rainwater,
Convergence building structure for agricultural and fishery industry with microalgae light culture device. The method of claim 13,
The culture medium circulation pipe,
Consisting of an underground inlet pipe having an inlet valve and an underground outlet pipe having a water outlet valve, ends of the underground inlet pipe and the underground outlet pipe are each communicated with a circulation pipe of the microalgae light culture device, and the underground inlet pipe A ground circulation opening/closing valve is provided in the circulation pipe between the subsurface water outlet pipe and the culture medium circulating the microalgae optical culture apparatus while circulating the culture medium circulation pipe according to the opening and closing of the inlet valve, the water outlet valve, and the ground circulation opening/closing valve. Characterized in that the temperature is controlled by heat exchange,
Convergence building structure for agricultural and fishery industry with microalgae light culture device. delete delete delete delete delete delete

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