KR101142359B1 - Massive culturing tank for manufacturing bio-fuel and apparatus for culturing microalgae having the same - Google Patents

Abstract

PURPOSE: A culture bath for manufacturing biofuel is provided to store a certain amount of fluid containing microalgae and to control culture condition of the fluid in real-time. CONSTITUTION: A culture bath(100) for microalgae comprises a culture part(110) and a fluid flow part. The culture part has an open upper portion and has a fluid storing space inside. The culture part comprises a bottom(113), a side wall(111), and a partition wall(112). The bottom forms bottom side of the storing space and has a certain width. The partition wall is formed at the center of the bottom and is formed in a predetermined length along the longitudinal direction of the side wall to form a circulation path(a).

Description

CULTURE BULK FOR MANUFACTURING BIOFUEL AND MULTI-ALBLOW CULTURE CULTURE DEVICE WITH THE SAME {MASSIVE CULTURING TANK FOR MANUFACTURING BIO-FUEL AND APPARATUS FOR CULTURING MICROALGAE HAVING THE SAME}

The present invention relates to a culture tank for biofuel production and a microalgae culturing apparatus having the same, and more particularly, to a biofuel cultivation capable of continuously circulating a fluid including microalgae and supplying oxygen in large quantities. It relates to a tank and a microalgae mass culture device having the same.

In general, microalgae may play a role in treating wastewater, immobilizing carbon dioxide due to various capacities, and for the purpose of producing useful substances such as fuels, cosmetics, feed, food coloring and pharmaceutical raw materials. It has been used, and valuable high value materials are constantly being discovered and expanding their applications.

Typically, microalgae have unlimited potential as a raw material of biodiesel because they have the advantage of being able to harvest a large amount in a short time due to rapid growth and breeding activity according to the culture environment conditions.

There are many factors such as the composition of the medium, temperature, pH, light intensity, light quantity, etc., which affect the increase in biomass and useful products of microalgae, but among them, light occupies the largest portion due to the characteristics of photosynthetic microalgae.

In general, the apparatus for culturing photosynthetic microalgae for the purpose of immobilizing carbon dioxide can be largely divided into a large-scale cultivation outdoors (open system) and using a microbial culture photobioreactor (closed system).

Outdoor mass cultivation apparatus including pond type has been mainly used in the form of reaction facilities such as lakes or large ponds and is commercially available in some countries.

However, this type of cultivation facility has the advantages of low initial investment and easy maintenance, but it is difficult to contaminate, isolate and purify, low cell concentration, high mass (especially nitrogen source), high water quality and quantity demand, and irregular climate. Due to problems such as conditions and expensive labor costs, the installation is extremely limited.

In addition, the microalgae cultivation photobioreactor has a structure for circulating a culture solution by closely contacting a narrow long rectangular or cylindrical pipe in order to maximize the irradiation area exposed to sunlight and to shorten the light transmission distance into the culture medium. Have

However, such a reactor mainly installed indoors requires expensive installation costs, and has a problem in that maintenance costs are increased after manufacturing.

Therefore, conventionally, when using the two kinds of culture facilities as described above, there is a problem that causes an increase in the production cost.

In addition, in the related art, since the seawater or freshwater containing the microalgae is continuously forced to circulate and sufficient oxygen cannot be provided, there is a problem that the microalgae cannot be cultured in large quantities quickly in a predetermined space.

In addition, there is a conventional problem that can not monitor and control the microalgal culture environment in real time.

An object of the present invention is to store a certain amount of fluid containing a microalgae, it is possible to cultivate in large quantities by continuously performing forced circulation and oxygen supply, and having a culture tank for biofuel production that can achieve a low equipment cost and having The present invention provides a microalgal mass culturing apparatus.

Another object of the present invention is to provide a biofuel culture tank and a microalgae mass culturing apparatus having the same, which can control the culture environment of a fluid including microalgae in real time.

In a preferred embodiment, the present invention provides a culture tank for producing biofuel.

The culture tank, the upper portion is open, the circulation path of the fluid for producing biofuel is formed therein, the fluid containing microalgae provided from the outside is continuously cultured by circulating continuously along the circulation path at different locations, the inside A culture unit in which a fluid level limiting groove having a predetermined depth is formed along a circumference to form a boundary of the storage level of the fluid; And a fluid flow portion disposed on the circulation path, forcibly circulating the fluid along the circulation path, and providing oxygen to the fluid.

Here, the culture unit, the side wall in which the storage space for storing the fluid is formed, the bottom connecting the lower end of the side wall, is installed so as to stand upright in the center of the bottom, partitioning the storage space to form the circulation path It is preferable to have a partition.

And it is preferable that the cross-sectional width of the said circulation path gradually narrows along upper direction from the said culture part.

In addition, it is preferable that an inclined surface is formed on the side surfaces of the side wall and the partition wall facing each other so as to gradually narrow the interval of the surface facing downward from above the culture portion.

In addition, the lower end of the culture unit is preferably inserted into the ground to a predetermined depth.

In addition, the fluid level confined groove is preferably formed to have a predetermined depth to the inner side of the periphery of the circumference of the side wall and each of the partition wall at a position forming a certain height from the bottom of the culture tank.

On the other hand, the fluid flow portion is installed in the culture portion, the support member having a rotation axis, formed radially from the outer circumference of the rotation axis, the end is bent at a predetermined angle, the blade on the plate for flowing the fluid, It is preferable to include a rotary motor connected to the rotary shaft and receiving an electrical signal from the outside to rotate the rotary shaft, and a fluid flow control unit electrically connected to the rotary motor and controlling the operation of the rotary motor.

Here, each of the blades is provided with a first blade on the plate provided radially from the outer periphery of the rotary shaft, and the second blade on the plate provided at the end of the first blade to be inclined at an angle with the first blade. desirable.

The inclination angles of the first blade and the second blade form 15 to 20 degrees.

In addition, a support frame is further provided between the rotating shaft and the respective blades.

The support frame may include a plurality of first support frames extending radially from a plurality of positions of the outer circumference of the rotation shaft and end portions of the first support frames along the circumferential direction of the rotation shaft. It is preferred to have a second support frame to which the blade is fixed.

In another aspect, the present invention provides a microalgal mass culture apparatus.

The culture apparatus includes a culture tank described above, and a heating unit that heats the culture unit and controls a temperature value of the culture unit.

Here, the heating unit is buried in the lower end of the culture unit, the heating pipe circulating the heating water, both ends of the heating pipe is connected, the boiler for heating the heating water to a predetermined temperature to supply to the heating pipe to circulate It is preferable to provide.

The heating unit further includes a temperature control unit.

The temperature control unit, the temperature sensor for measuring the temperature value of the fluid stored in the culture unit, and receives the measured temperature value from the temperature sensor, the measured temperature value is in the range of the preset reference temperature value It includes a boiler control unit for controlling the operation of the boiler to be included.

In addition, the heating pipe is preferably buried in the lower end of the incubation to form the irregularities on the outer circumference of the heating pipe.

The present invention has the effect of storing a certain amount of the fluid containing the microalgae, and cultivating in large quantities by continuously performing the circulation and oxygen supply.

In addition, the present invention has the effect of real-time control of the culture environment of the fluid containing microalgae.

The present invention has the effect of achieving a low installation cost compared to the installation cost of conventional reactors.

1 is a perspective view showing a microalgal culture tank for producing a biofuel of the present invention.
2 is a plan view showing the culture tank of FIG.
3 is a cross-sectional view showing the culture tank of FIG.
4 is a partially enlarged cross-sectional view showing the symbol A of FIG.
5 is a perspective view showing a fluid flow according to the present invention.
6 is a perspective view showing the installation state of the fluid flow portion according to the present invention.
7 is a view showing an example in which the microalgae mass culture device of the present invention is installed.

Hereinafter, with reference to the accompanying drawings, it will be described a culture tank for biofuel production.

1 to 3 show a culture tank for producing a biofuel of the present invention.

Referring to Figure 1, the microalgal culture tank 100 of the present invention is composed of a culture unit 110, the fluid flow unit 200.

2 and 3, the culture unit 110 is opened upward, and a fluid storage space is formed therein. The storage space stores a certain amount of fluid including the microalgae. The fluid may be either sea water or fresh water.

Referring to FIG. 3, the culture unit 110 includes a bottom 113, a side wall 111, and a partition wall 112.

The bottom 113 is a portion constituting the bottom of the storage space, and has a predetermined width and width.

The side wall 111 is formed to have a predetermined height upward from the edge of the bottom 113 to surround the side of the storage space.

The partition wall 112 is formed at the center of the bottom 113. The partition wall 112 is formed to have a predetermined length along the longitudinal direction of the side wall 111 so as to form an elliptical circulation path (a).

Therefore, the storage space is partitioned by a central portion by the side wall 111.

Although not shown in the drawing, the culture unit 110 is provided with a fluid supply pipe (not shown) and a fluid discharge pipe (not shown). The fluid supply pipe supplies the fluid to the storage space inside the culture tank 100, and the fluid discharge pipe discharges the fluid to the outside. Here, a valve (not shown) for opening and closing the pipe may be installed at each of the fluid supply pipe and the fluid discharge pipe.

The cross-sectional width of the circulation path (a) is formed to gradually narrow along the downward from the upper side of the culture unit (110).

An inclined surface S is formed on surfaces of the sidewall 111 and the partition wall 112 that face each other. The inclined surface S is composed of a first inclined surface S1 and a second inclined surface S2.

The first inclined surface S1 is formed on the outer surface of the sidewall 111 exposed to the storage space, and the second inclined surface S2 is formed on each of both side surfaces of the partition wall 112 exposed to the storage space.

Substantially, the cross-sectional width of the circulation path a is the width of the first inclined surface S1 and the second inclined surface S2.

The first and second inclined surfaces S1 and S2 in the present invention form an inclination in which the cross-sectional width of the circulation path a becomes narrower from above the culture unit 110.

That is, the cross-sectional width of the circulation path (a) is formed to gradually widen along the top from the bottom 113 of the culture unit (110).

The first and second inclined surfaces S1 and S2 having the inclination as described above may smoothly flow the fluid by reducing friction between the outer surfaces of the side walls 111 and the partition walls 112 and the flow of the fluid.

The culture unit 110 is formed with a fluid level limiting groove 130.

The fluid level limiting groove 130 includes a first fluid level limiting groove 131 formed in the side wall 111 of the culture unit 110 and a second fluid level limiting groove 132 formed in the partition wall 112. do.

The first and second fluid level confining grooves 131 and 132 form the same height from the bottom 113 of the culture unit 110.

The first fluid level confined groove 131 is formed along an outer surface of the side wall 111 exposed to the storage space. The second fluid level limiting groove 132 is formed along an outer surface of the partition wall 112 exposed to the storage space.

The fluid level limiting groove 130 may limit the storage level of the fluid stored in the storage space.

Preferably, the fluid level limiting groove 130 is formed in a polygonal shape. Of course, the fluid level limiting groove 130 may be formed in a shape forming a curved surface.

The culture unit 110 is installed on the ground.

The ground may be the bottom of a structure having a greenhouse structure. The structure may be the plant 1 of FIG. 7.

A portion of the lower end of the culture unit 110 is inserted into the ground. The culture unit 110 may be provided with geothermal heat by being installed inside the ground. Therefore, it is advantageous in winter.

The culture unit 110 is formed of concrete. Referring to Figure 4, the outer surface of the culture unit 110 is formed with a waterproof layer 120 having a predetermined thickness. The waterproof layer 120 may be a PVC liner.

Due to the formation of the waterproof layer 120, the fluid stored in the storage space of the culture unit 110 may penetrate into the culture unit 110 and may not leak to the outside.

Next, the fluid flow unit 200 will be described.

Referring to FIG. 2, the fluid flow part 200 is installed in the culture part 110 to be disposed on the circulation path a.

Referring to FIG. 2, the fluid flow part 200 includes a support member 210 having a rotating shaft 220, blades 240, a rotation motor 230, and a fluid flow control unit 250. It is composed.

Figure 5 shows the fluid flow portion, Figure 6 shows the installation state of the fluid flow portion.

Referring to FIG. 6, the support member 210 includes a pair of support plates 211. One of the pair of support plates 211 is installed on the top of the side wall of the culture unit 110, the other is installed on the top of the partition wall (112).

The pair of support plates 211 may be installed to be detachable from an upper end of the side wall 111 and the partition wall 112.

A lower end of the pair of support plates 211 is formed with a fixing groove 211a to be fitted to the upper end of the side wall 111 and the upper end of the partition wall 112. The lower ends of the pair of support plates 211 fitted into the fixing grooves 211a may be tightened using a fastening member such as a fastening bolt B.

Both ends of the rotation shaft 220 are rotatably supported by the pair of support plates 211.

Referring to FIG. 5, the rotary motor 230 is connected to one end of the rotary shaft 220.

The fluid flow control unit 250 is electrically connected to the rotary motor 230 to control the operation of the rotary motor 230.

The blades 240 are installed on the outer circumference of the rotating shaft 220 to the first blades 241 and the end of each of the first blades 241, each of the first blade 241 and It is composed of second blades 242 connected in a predetermined slope.

The first blade 241 and the second blade 242 form an inclination angle of 15 degrees to 20 degrees with each other. The inclination angle between the first and second blades 241 and 242 is an empirical value obtained by a plurality of experiments. The second blade 242, which is substantially inclined from the first blade 241, is a member that serves to pump up the fluid. Accordingly, the inclination may form an angle of 15 degrees to 20 degrees that can easily pump up a portion of the forcibly flowing fluid while forming a forced flow of the fluid.

In addition, the width of the second blade 242 along the radial direction is preferably formed narrower than the width of the first blade 241. The width of the second blade 242 determines the amount of fluid to be pumped up.

In addition, before bending the second blade 242, the width of the first blade 241 may be increased or decreased in proportion to the amount of fluid to be pumped up.

That is, the boundary between the first blade 241 and the second blade 242 may be arbitrarily adjusted. For example, by varying the bending position of the second blade 242, the boundary may be variably adjusted.

In addition, the blades 240 are formed in a plate shape. The blade 240 has corrosion resistance.

For example, the blades 240 may be formed of plastic or glass fiber reinforced plastic. In addition, the blades 240 may be formed of stainless steel.

Referring to Figure 5, the configuration of the blade 240 will be described in more detail.

One end of the first blades 241 is fixed to the rotation shaft 220. The first blades 241 are installed so as to be radial with respect to the rotation shaft 220.

Each of the second blades 242 is installed at an end of each of the first blades 241. Each of the second blades 242 is installed at an end of the first blade 241 to form an inclination of 15 degrees to 20 degrees from each of the first blades 241.

Here, the first and second blades 241 and 242 may be integrally formed with each other. Accordingly, the inclination may be formed by bending the second blade 242 from the first blade 241. In addition, a predetermined heat may be applied to the blade 240 to bend easily when bending.

In addition, the first and second blades 241 and 242 may be detachable from each other.

For example, the first and second blades 241 and 242 may be bolted to each other. In addition, the first and second blades 241 and 242 may be coupled to each other. Although not shown in the drawings, a fitting groove may be formed at an end of the first blade 241 and a fitting protrusion may be formed at the end of the second blade 242. The fitting groove and the fitting protrusion are formed on blades opposite to each other.

As shown in FIG. 6, the ends of the first and second blades 241 and 242 are rotated so as to be sequentially impregnated with the fluid stored in the storage space of the culture unit 110.

As each second blade 242 inclined from the first blade 241 is rotated, the fluid may be pumped upward, and the pumped fluid may be dropped downward at a predetermined height at a predetermined height. .

Therefore, the fluid flow part 200 forms a circulation path (a) for forcibly circulating fluid in the culture part 110 using the rotating blades 240. In addition, the fluid flow unit 200 may continuously supply oxygen generated due to the drop of the fluid to the circulating fluid.

Referring to FIG. 5, a support frame 260 is further provided between the rotation shaft 220 and the blades 240.

Here, the support frame 260 is composed of a plurality of first support frames 261 and the second support frame 262.

The first support frames 261 extend radially from a plurality of positions of the outer circumference of the rotation shaft 220 in a radial shape to extend a predetermined length.

The second support frame 262 connects end portions of the first support frames 261 along the circumferential direction and the longitudinal direction of the rotation shaft 220. The first blade 261 is fixed to the second support frame 262.

Next, the microalgae mass culture device of the present invention will be described.

Figure 7 shows the microalgal mass culture device of the present invention.

Referring to FIG. 7, the culture apparatus includes a culture tank 100 and a heating unit 300 that controls the temperature of the culture tank 100.

The culture tank 100 has the same configuration as described above with reference to FIGS.

The culture tank 100 is composed of a plurality, it may be arranged in parallel to each other in the internal space of the plant (1).

The heating unit 300 is composed of a heating pipe 310, the boiler 320.

The heating pipe 310 is a pipe for circulating heating water, and may be formed of a material having corrosion resistance such as copper (Cu).

The heating pipe 310 has a predetermined length. The heating pipe 310 is embedded in the lower end of the culture unit (110). The heating pipe 310 is embedded to form a jigjag (jigjag) shape in the lower portion of the bottom 113 of the culture unit (110).

Here, although not shown in the drawing, the heating pipe 310 may be buried in the lower end of the culture unit 110 to form an unevenness on the outer circumference of the heating pipe 310.

The heating pipe 310 is increased in contact with the inside of the lower end of the culture unit 110 through the unevenness. Increasing the contact area can increase the heat transfer efficiency.

Both ends of the heating pipe 310 protrudes out of the culture unit 110.

The boiler 320 is connected to both ends of the heating pipe 310 protruding to the outside of the culture unit 110.

The boiler 320 heats the heating water provided to the outside to a predetermined temperature. The boiler 320 supplies heating water heated to a predetermined temperature to the heating pipe 310 and circulates in the heating pipe 310.

The heating unit 300 includes a temperature control unit 330.

The temperature control unit 330 may be composed of a temperature sensor 331, the boiler control unit 332.

The temperature sensor 331 may be installed in the culture unit 110.

The temperature sensor 331 may measure the temperature value of the fluid stored in the storage space of the culture unit 110. The temperature sensor 331 transmits the measured temperature value to the boiler control unit 332.

The boiler control unit 332 has a preset reference temperature value range. The reference temperature value range is an optimum culture temperature range of the microalgae, which can be set variable because it can be obtained with a plurality of experimental values.

The boiler control unit 332 may receive the measured temperature value and control the operation of the boiler 320 to be included in a preset reference temperature value range.

Next, the operation of the microalgae mass culture device having the culture tank of the present invention having the above configuration will be described.

Referring to FIG. 7, two culture tanks 100 are installed in the inner space of the plant.

One of the two culture tanks 100 may store seawater, and the other may store freshwater. Here, the type of fluid stored in each culture tank 100 may be selectively varied.

One culture vessel 100 will be described as a representative example.

In the storage space of the culture unit 110, a predetermined amount of fluid, which is seawater including microalgae, is stored. The sea water may be stored in the storage space of the culture unit 110 through a fluid supply pipe (not shown).

The partition wall 112 formed to have a predetermined length at the center of the bottom 113 of the culture unit 110 forms a circulation path a in the storage space of the culture unit 110 at a predetermined distance from the side wall 111. . The circulation path a includes a straight flow path and a curved flow path.

Here, the water level of the seawater stored in the culture unit 110 may be limited by the fluid level confining groove 130 shown in FIGS. 3 and 4.

Sea water is stored in the storage space of the culture unit 110 to the same level as the height of the fluid level confining groove 130 is located.

Referring to FIG. 2, the fluid flow part 200 is disposed on the circulation path a of the culture part 110.

5 and 6, the fluid flow unit 200 may be installed in the culture tank 100 so that the second blades 242 are rotated so as to be sequentially immersed in sea water.

The fluid flow control unit 250 drives the rotary motor 230. The rotary motor 230 rotates the rotary shaft 220 at a constant rotational speed.

Therefore, the first blades 241 radially formed on the outer circumference of the rotating shaft 220 are rotated at a constant rotational speed. In addition, the second blades 242 installed to be inclined at the end of each first blade 241 are also rotated at the same time.

The second blades 242 may rotate and flow seawater along a circulation path (a), and may sequentially raise a predetermined amount of seawater stored in the culture unit 110 upwardly. Then, the seawater that has been raised to an upper predetermined position may fall downward.

By the rotation of the second blades 242, seawater is pumped up, and the process of dropping the pumped seawater back to the stored seawater is repeated.

The second blade 242 in the present invention forms an inclination angle of 15 degrees to 20 degrees from the first blade 241, the inclination angle is a plurality of experimental values that can facilitate the generation of oxygen by raising and dropping the sea water. This is the optimal tilt angle obtained with.

By the repetitive process as described above, the sea water may be circulated along the circulation path (a) of the culture unit (110).

And the seawater spread by the rotation of the second blade 242 is dropped to the seawater forcedly circulated in the lower culture portion at a predetermined height. At this time, bubbles are formed in the seawater of the culture unit 110 by the drop, and thus oxygen may be supplied to the seawater.

Therefore, the seawater circulated along the circulation path (a) in the culture unit 110 may be provided with oxygen through the continuous drop process.

As a result, the microalgae contained in the seawater can be easily grown because they are continuously circulated and provided with oxygen.

In addition, referring to Figure 3, the culture tank 100 is made of concrete in which the rebar is excreted, the waterproof layer 120 is formed on the outer surface. Seawater or fresh water stored in the culture unit 110 may not leak outside or penetrate into the culture unit due to the waterproof layer 120.

In addition, an inclined surface S is formed on each of the inner side surface of the side wall 111 of the culture unit 110 and the outer side surface of the partition wall 112. The cross-sectional width of the circulation path (a) of the culture tank 100 is formed to gradually decrease along the downward.

Therefore, the seawater stored in the storage space of the culture unit 110 may be stably circulated by the inclined surface S, and may not overflow from the storage space to the outside during circulation.

The culture tank 100 as described above may be always provided with geothermal heat because the lower end portion is inserted into the ground.

Referring to FIG. 7, the heating unit 300 according to the present invention may heat and heat the culture unit 110.

The boiler 320 receives heating water from the outside. The boiler 320 heats the supplied heating water to a predetermined temperature. In addition, the boiler 320 supplies the heated heating water to the heating pipe 310 and circulates along the heating pipe 310.

Here, since the heating pipe 310 is embedded in the lower end of the culture unit 110, the heating temperature generated by the supply of heating water is transferred to the culture unit 110 through the lower end of the culture unit 110.

Therefore, the culture unit 110 may be heated to a predetermined temperature. That is, the fluid stored in the storage space of the culture unit 110 may be raised to a predetermined temperature.

In addition, the temperature control unit 330 according to the present invention may control the operation of the boiler 320.

The temperature sensor 331 measures the temperature value of seawater stored in the storage space of the culture unit 110 and circulated by the operation of the fluid flow unit 200 in real time, and transmits it to the boiler control unit 332.

The boiler control unit 332 receives the measured temperature value and controls the operation of the boiler 320 to be included in the range of the predetermined reference temperature value.

Therefore, the boiler 320 may receive an electrical signal from the boiler control unit 332 to variably determine the heating temperature of the heating water.

Through the above process, the seawater stored in the storage space of the culture unit 110 may be raised to a predetermined temperature.

In addition, the bottom 113 of the culture unit 110 is partially inserted into the bottom 10 of the plant (1).

Therefore, in the winter, the culture unit 110 may receive the geothermal heat directly through the bottom 113 of the culture unit 110.

Therefore, the temperature control unit 330 controls the operation of the boiler 320 in real time, so that the temperature of the seawater stored in the culture unit 110 to achieve the optimum temperature range required for the culture of microalgae over four seasons. can do.

As described above, the present invention circulates the seawater including the microalgae stored in the culture unit 110 in the culture unit 110, and provides oxygen.

In addition, the present invention controls the temperature of the seawater stored in the culture unit 110 in real time to be included in the predetermined reference temperature value range.

Accordingly, the present invention can easily control the culture or growth environment of the microalgae, it is possible to incubate the microalgae in large quantities in a short time.

100: culture tank 110: culture unit
120: waterproof layer 130: fluid level limited groove
200 fluid flow part 210 support member
211 support plate 220 rotating shaft
230: rotary motor 240: blade
241: first blade 242: second blade
250: fluid flow control unit 260: support frame
300: heating pipe 310: boiler
320: temperature controller 321: temperature sensor
322: boiler control unit

Claims (13)

The upper part is opened, a circulation path of the fluid for producing biofuel is formed therein, and the fluid including microalgae provided from the outside is continuously cultured by continuously circulating along the circulation path at different locations, A culture unit in which a fluid level limiting groove having a predetermined depth is formed to form a boundary of a storage level of the fluid; And
A fluid flow portion disposed on the circulation path, forcibly circulating the fluid along the circulation path, and providing oxygen to the fluid,
The fluid flow portion,
A support member installed in the culture section and having a rotating shaft;
Blades on the plate which are radially formed from the outer circumference of the rotation shaft, the ends of which are bent at an angle, and flow fluid;
A rotating motor connected to the rotating shaft and receiving an electrical signal from the outside to rotate the rotating shaft;
A fluid flow control unit electrically connected to the rotary motor and controlling the operation of the rotary motor;
Each blade is
A first blade on a plate radially installed from an outer circumference of the rotating shaft;
A second blade on the plate installed at an end of the first blade to be inclined at a predetermined angle with the first blade,
The first blade and the second blade is removable from each other,
Ends of the first and second blades are sequentially impregnated with the fluid as the rotating shaft is rotated,
Each of the second blades inclined from the first blade is forced to flow the fluid along the circulation path as the rotating shaft is rotated, and the fluid is pumped upwards to drop the fluids pumped up from a predetermined height downwards. ,
Wherein the first blade and the second blade are supported by a plurality of ribs.
The method of claim 1,
The culture unit,
A side wall on which a storage space for storing the fluid is formed;
A bottom connecting the lower end of the side wall,
It is installed to be upright in the center of the bottom, the culture tank for biofuel production, characterized in that it comprises a partition wall partitioning the storage space to form the circulation path.
The method of claim 2,
The cross section width of the circulation path is
A culture tank for producing a biofuel, characterized in that it gradually narrows down from above the culture section.
The method of claim 3,
On the side of the side wall and the partition facing each other,
A culture tank for producing a biofuel, characterized in that the inclined surface is formed so as to guide the interval of the face facing gradually from above the incubation gradually narrower.
The method of claim 1,
The lower end of the culture unit,
A culture tank for biofuel production, characterized in that is inserted into the ground at a predetermined depth.
The method of claim 2,
The fluid level limited groove,
In a position forming a certain height from the bottom of the culture tank,
The culture tank for producing a biofuel, characterized in that to form a predetermined depth in the inner side of the circumference of the side wall and each of the partition wall.
delete delete The method of claim 1,
A support frame is further provided between the rotating shaft and each of the blades,
The support frame,
A plurality of first supporting frames extending radially from the plurality of positions of the outer circumference of the rotation shaft in a predetermined length;
And a second support frame in which end portions of the first support frames are connected along the circumferential direction of the rotation shaft, and the blades are fixed to each other.
The culture tank of any one of claims 1 to 6 and 9; And
Microalgae mass culture device, characterized in that it comprises a heating unit for heating the culture unit, controlling the temperature value of the culture unit.
The method of claim 10,
The heating unit,
A heating pipe embedded in a lower end of the incubation unit, in which heating water is circulated;
Both ends of the heating pipe is connected, the microalgae mass culture device characterized in that it comprises a boiler for heating the heating water to a predetermined temperature to supply and circulate the heating pipe.
12. The method of claim 11,
The heating unit is further provided with a temperature control unit,
The temperature control unit,
A temperature sensor for measuring a temperature value of the fluid stored in the culture unit;
And a boiler control unit receiving the measured temperature value from the temperature sensor and controlling the operation of the boiler so that the measured temperature value is within a preset reference temperature value. Culture device.
12. The method of claim 11,
The heating pipe,
Microalgae mass culture device, characterized in that the outer periphery of the heating pipe to be embedded in the lower end of the culture portion.

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