JP2018074985A - Plant factory using microhydraulic power generation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive plant by reducing the energy cost of power, etc., for a plant factory.SOLUTION: A plant factory using power acquired from a microhydraulic power generation system as a power source for the plant factory in which the microhydraulic power generation system comprises: a water tank 31; a water conduit pipe 32 provided below the water tank with one end communicating with the water tank, and descending toward the other end; a condensate pipe one end of which communicates with the other end of the water conduit pipe, and rising toward the other end; a plurality of power generation units 35 provided at a point on the water conduit pipe and which generates power by using the flow of water through the water conduit pipe; a pump 33 that connects to the other end of the condensate pipe that discharges water in the condensate pipe into the water tank; and a power unit connected to the plurality of power generation units which is charged by power from the plurality of power generation units and which supplies power to the pump. The pump generates a uniform suction flow in the condensate pipe and the water conduit pipe by the suction force generated by discharging water from the condensate pipe, and is configured to form a water flow through the water conduit pipe.SELECTED DRAWING: Figure 2

Description

The present invention relates to a plant factory using a micro hydroelectric power generation system that generates electricity by hydropower.

Due to the effects of climate change due to global warming, domestic and global abnormal climates, such as heavy rain and tornadoes that have never been experienced, are worried and anxious. In addition, food necessary for the survival of mankind is expected to be considerably deficient due to an increase in the world's population and a decrease in cultivated area due to desertification and salt damage. Furthermore, since agricultural products imported from overseas are sprayed with a large amount of agricultural chemicals for mass production, there is a concern about the impact on the human body. As described above, the growth and harvesting of plants such as vegetables and fruits that are cultivated by using natural power are affected by the weather, so that there is a problem that income is not stable. In order to protect the safety and security of consumers and consumers, it is necessary to build a supply system that maintains stable agricultural management and reliable food production. Therefore, in recent years, plant factories for controlling the environment such as temperature and performing stable production have been constructed and operated in various parts of Japan.

JP2012-193730 JP2015-195708

Conventional plant factories are expensive to supply energy for controlling the environment such as temperature, and the price of produced plants is higher than that of conventional plants.

An object of the present invention is to make energy used in a plant factory in the plant factory, reduce energy costs in the plant factory, and reduce the price of plants cultivated in the plant factory. The present inventor has proposed a pumped-up type micro hydroelectric power generation system that generates power using a water flow. (Patent Documents 1 and 2) Since this pumped-type micro hydroelectric power generation system is small, it can be installed in a plant factory, and the electric power obtained by the micro hydroelectric power generation system is used for the power (energy) of the plant factory. Specifically, it has the following characteristics.

(1) The present invention has a micro hydroelectric power generation system that generates electricity by hydropower in a plant factory that grows plants, and uses electric power obtained from the micro hydroelectric power generation system as a power source (energy source) of the plant factory. The micro hydro power generation system is a water storage tank for storing water, and is disposed below the water storage tank, and one end communicates with the water storage tank and descends toward the other end. A water conduit, one end of which is in communication with the other end of the water conduit, a condensate tube rising toward the other end, and a water flow that is provided in the middle of the water conduit and flows through the water conduit Connected to the other end of the condensate pipe, and a pump for discharging water in the condensate pipe into the water storage tank, and connected to the plurality of power generation units. The plurality A power supply unit that is charged with electric power from the power generation unit and supplies electric power to the pump, and the condensate pipe and the water guide by the suction generated by the pump discharging water in the condensate pipe The plant factory is configured to generate a uniform suction flow in the pipe to form the water flow that flows through the water conduit, and uses the power of the power supply device as power for the plant factory.

(2) In addition to (1), the present invention provides that all or part of the electric power used in the plant factory is electric power generated by the micro power generation system, and the water storage tank and / or the condensate pipe In addition, a heater and / or a cooling device for heating or cooling the water stored in the water tank and / or the water stored in the condensate pipe is installed, and all the power sources of the heater and / or the cooling device are installed. Alternatively, a part of the electric power is generated by the micro power generation system, and a heat radiating plate is installed in the water conduit to dissipate heat of heating water or cold water in the plant factory. And a temperature control system for setting the temperature in the plant factory to a predetermined temperature is installed, and all or part of the power source of the temperature control system is the micro hydroelectric power generation system. Characterized in that in a generated electric power.

The present invention is to install a micro hydroelectric power generation system in a plant factory, operate the plant factory using electric power obtained by the micro hydroelectric power generation system, and reduce power consumption used in the plant factory. Can do. In addition, since the fluid (water) used in the micro hydroelectric power generation system has a function of heating and cooling according to the temperature in the plant factory, the temperature adjustment in the plant factory can be controlled efficiently, Energy (electric power) used in the temperature control device can be reduced. In particular, the water conduit used in the micro hydroelectric power generation system is distributed throughout the plant factory, and the temperature adjustment in the plant factory can be efficiently controlled by the heat radiating plate attached to the water conduit. As a result, it is possible to reduce the cost of the plant factory, in particular, energy costs such as electric power, and supply inexpensive plants.

FIG. 1 is a front (elevation) schematic diagram of a plant factory using the micro hydroelectric power generation system of the present invention. FIG. 2 is a schematic plan view of a plant factory using the micro hydroelectric power generation system of the present invention. FIG. 3 is a schematic side view of a plant factory building viewed from the side. FIG. 4 is a diagram showing a state in which a rotary disk-shaped generator attached in the middle of the water conduit is installed in the water conduit. FIG. 5 is a diagram showing a cross section of the portion indicated by the alternate long and short dash line B1-B2 in FIG. FIG. 6 is a diagram showing another embodiment of the rotary disk generator.

In the plant factory of the present invention, a water conduit that descends in the plant factory building is installed, and a plurality of micro hydroelectric generators that generate electricity by flowing water flowing through the water conduit are arranged in the middle of the water conduit, and the micro hydro power generation The power consumed by the machine is used to cover the energy consumed by the plant factory.

FIG. 1 is a diagram showing an embodiment of the present invention. The plant factory 11 of the present invention is installed in a building 12. FIG. 1 is a schematic view of a building in which a plant factory is installed as seen from the front (elevation). The building 12 is surrounded by a floor 21, a ceiling 24, and side walls 22, 23, 27, 28, in which a descending water conduit 32 is arranged. A power generator 35 is installed in the middle of the water conduit 32, and the power generator 35 generates power using a fluid (water) flowing through the water conduit 32. Since a plurality of the generators 35 are arranged in the middle of the water conduit 32, they may be described as power generation units. In addition, a heat radiating portion 37 is appropriately disposed in the middle of the water conduit 32, and the heat of the fluid is efficiently dissipated (radiated) into the building 12 to warm or cool the temperature in the building. The heat dissipating part 37 is, for example, a pipe using a heat sink (having a large surface area) with a fin structure (structure having a large surface area) attached to a water conduit with a flange 45, or a material having good heat conduction ( For example, it is a pipe made of copper or aluminum, or a combination of these, and is a part that efficiently dissipates heat of a fluid flowing through the heat radiating part 37 to the outside of the heat radiating part 37, that is, inside the plant factory. If the heat radiating plate 37 is disposed along the downward flow of the water conduit 32, the heat (hot or cold) of the fluid (water) flowing through the water conduit 32 can be efficiently dissipated stepwise to the outside of the water conduit. it can.

If the water conduit 32 can maintain the fluid velocity that optimizes the power generation efficiency of the generator, it is desirable to be disposed in a wide area in the plant factory, and the heat radiation from the heat radiating unit 37 is the area where the plants in the plant factory are grown. Can be allocated efficiently. It is desirable that the heat radiating portion 37 is also arranged at a plurality of portions of the water conduit 32, particularly at an optimum portion for keeping the temperature in the plant factory at a predetermined value. A water tank 31 is installed at the top of the building 12, and water is poured into the water tank 31 from tap water, ground water, or natural water such as a river, and the water is stored in the water tank 31. The inlet of the water conduit 32 is connected to the lower part of the water storage tank 31, and the water conduit 32 descends from the water reservoir 31, so that the water in the water reservoir 31 flows from the inlet of the water conduit 32 into the water conduit 32. . Electricity is generated by a plurality of generators 35 arranged in the middle of the water conduit 32 by the flowing water descending in the water conduit 32. The water guide pipe 32 goes around a necessary portion in the building 12 where the plant factory 11 is installed, and descends. The building 12 shown in FIG. 1 has a three-story structure. In the third-floor portion, the water conduit 32 descends from the left end where the water storage tank 31 is installed to the right end, bends at the right end, and further descends from the right end to the left end.

The water guide pipe 32 further bends in the vicinity of the floor 26 at the left end of the third floor, enters the second floor, descends from the left end to the right end, bends at the right end, and further descends from the right end to the left end. The water guide pipe 32 further bends in the vicinity of the floor 25 at the left end of the second floor, enters the first floor, descends from the left end to the right end, bends at the right end, and further descends from the right end to the left end. The water conduit 32 becomes an exit at the left end of the first floor. As described above, since the water guide pipe 32 is arranged in a wide area in the building (in the plant factory), the required number of generators 35 and heat dissipating parts (heat dissipating plates) can be arranged with a long length. The outlet of the water conduit 32 is connected to the condensate pipe 43, and the condensate pipe 43 rises substantially vertically from the floor portion of the first floor to the vicinity of the water tank 31 on the third floor. The condensate pipe 43 is composed of two parts {43 (43-1, 2)}, and the upper condensate pipe 43 (43-2) has a larger inner diameter than the lower condensate pipe 43 (43-1). There is a lot of water. The pumping pump 33 is connected to the upper part of the upper condensate pipe 43 (43-2), and the water stored in the condensate pipe 43 is discharged. A uniform suction flow is generated in the condensate pipe and the conduit pipe by the suction force generated by the discharge, and a water stream flowing through the conduit pipe is formed. That is, the speed and amount of water flow in the conduit 32 can be adjusted by the discharge amount of the pumping pump 33.

The water discharged by the pumping pump 33 flows out from the water injection pipe 42 and is stored in the water storage tank 31. The stored water enters the conduit 32 again, and water flows through the conduit 32. For example, the water in the condensate pipe and the conduit pipe is moved by the force sucked into the gap generated by the pump discharging the water in the condensate pipe, and the water in the condensate pipe and the conduit pipe is It circulates in the pipe as a uniform suction flow in a decompressed state until it returns to an equilibrium state by the principle. Therefore, a circulating water flow can be formed with relatively small energy, and water is circulated in the pipe by being sucked by the negative pressure generated by the pump. Therefore, in the power generation unit 35, the turbine blades rotated by the water flow It is possible to form a space close to a vacuum that does not impede the rotation. As a result, as a micro hydroelectric power generation system that uses the water in the water storage tank 31 to efficiently generate power with very little energy consumption and returns the generated water to the water storage tank for circulation, it is an emergency power source for disasters. Of course, the energy conversion process is packaged in a simple and compact manner, so that it can supply the required amount of electricity according to the application as a regional distributed generator in smart communities, and requires advanced maintenance skills. However, it is possible for more people to participate in the energy supply process as a device that implements device assembly by regional companies and performs periodic maintenance inspections. In the present invention, this micro hydroelectric power generation system is arranged in a plant factory, and the plant factory is operated using the generated electric power.

The pump is preferably configured to pump the water in the condensate pipe by the difference in height between the water surface in the condensate pipe and the water surface in the water storage tank. As described above, the water surface in the condensate pipe and the water surface in the water storage tank are in the same plane and kept in an equilibrium state by the principle of the inverse siphon, and the pump only needs to lift water by a slight height. For this reason, the amount of energy consumed by the pump is very small. It is also preferable that each of the plurality of power generation units 35 includes a water turbine unit having a water turbine blade configured to rotate by a water flow, and a generator unit that converts the rotational force of the water turbine blade into electricity. The water wheel blade is configured to efficiently receive the kinetic energy of the water flow and convert it into rotational motion.

The water discharged from the condensate pipe 43 by the pumping pump 33 flows out from the water injection pipe 42 and is stored in the water storage tank 31. The stored water enters the conduit 32 again, and water flows through the conduit 32. A generator 34 is installed in the upper part of the water storage tank 31, and the generator 34 generates power using water discharged from the water injection pipe 42. That is, the water generated from the water injection pipe 42 rotates the blades of the generator 34, so that the generator 34 generates power. The generator 34 and the generator 35 are invented by the present inventors, for example, and the details thereof are described in detail in patent documents (Japanese Unexamined Patent Application Publication Nos. 2012-193730 and 2015-195708). For example, in a system in which a turbine blade is attached to a disc-shaped outer periphery, a water flow hits the turbine blade, the disc rotates, and power is generated by electromagnetic induction of a coil and a permanent magnet attached to the disc by the rotation. is there. Other power generation systems are also described in detail in the above patent document. An example is shown in FIG.

FIG. 4 is a view showing a state in which the rotary disk-shaped generator 60 attached in the middle of the water conduit is installed in the water conduit 61. In FIG. 4, in order to understand the positional relationship between the water guide pipe 61, the water flow 65, and the generator 60, it is shown as inclined as in the arrangement state. A part of the water conduit 61 is opened, and a rotary disk-shaped generator installation box 62 is installed in the opening. A rotary disk-shaped generator 60 is arranged in the space 63 of the installation box 62. A fluid 64 such as water flows in the water guide pipe 61 in the direction indicated by the arrow 65. The rotary disk-shaped generator 60 includes a blade plate 66, a fixed annular body 68, a rotary disk body 69, and a rotary shaft 70.

A part of the rotary disk-shaped generator 60 enters the fluid flow, and the blades 66 attached to the outer periphery of the rotary disk-shaped generator 60 receive the fluid force 65 and rotate in the direction of arrow 67. To do. With this rotation, the rotating shaft 70 and the rotating disk 69 rotate to generate electricity. The rotary disk-shaped generator 60 has a size corresponding to the space 63 of the water conduit 61 and the installation box 62. Further, the blade plate 66 has a shape and size that can be rotated efficiently by receiving a flow of fluid. A part of the blade plate 66 is immersed in the fluid, and the other blade plates 66 are not immersed in the fluid and are present in a region where there is no fluid in the space 63 of the installation box 62. The rotary disk-shaped generator 60 is arranged so as to obtain the maximum rotational force by efficiently receiving the force of the fluid and minimizing the resistance force of the fluid. Further, when only a part of the rotary disk-shaped generator 60 is immersed in the fluid, there is an advantage that the intrusion of the fluid to the rotating shaft 70 or the rotating disk body 69 side can be suppressed as much as possible. In addition, since it can be rotated even if the rotary disk-shaped generator 60 whole is immersed in the fluid flow, the rotary disk-shaped generator of the present invention may be used according to the use state and the power generation capacity.

FIG. 5 is a diagram showing a cross section of the portion indicated by the alternate long and short dash line B1-B2 in FIG. The side pipe 61 and the side wall of the rotary disk-shaped generator installation box 62 are connected to each other, and the side walls (62-1, 62-2) of the installation box 62 are fixed to the rotary disk-shaped generator. The outer peripheral surface of the annular body 68 is surrounded and connected to the outer peripheral surface. That is, the width W1 of the fixed annular body 68 is larger than the width of the blade plate 66 and the width W2 of the water conduit 61. A part of the lower part of the fixed annular body 68 is immersed in the fluid 64, and the blade plate 66 rotates around the fixed annular member 68. Then, it receives the force of the fluid 64 and further rotates. Since the blade plate 66 and the rotating shaft 70 are connected by the connecting rotating body 75, the rotating shaft 70 rotates. Further, since the rotating shaft 70 and the rotating disk body 69 are connected or integrated, the rotating disk body 69 is rotated by the rotation of the rotating shaft 70. Since the fixed torus 68 is literally fixed, it can be connected (coupled) to the peripheral surface of the fixed torus 68 and the installation box 62, and the space 63 in the installation box 62 is sealed off from the external environment. be able to. Both sides of the fixed annular body 68 are outside the installation box 62. Both sides of the rotating shaft further protrude outside the fixed annular body 68, and the rotating shaft is supported by the fixed base 72 so as to be rotatable by a bearing 73 disposed on the fixed base 72.

FIG. 6 shows a rotating disk-shaped generator of a type in which a bottom surface of a rotating disk body in which only a permanent magnet is disposed and a stationary disk body in which a coil is disposed is arranged to face each other, using a fluid. It is a figure which shows embodiment which can be. The fixed disk bodies 113 and 115 are not shown because a coil on one side is not necessary. Further, in the present embodiment, fixed disk bodies 332 and 333 not having a permanent magnet fixed to one end of the coil are also arranged. That is, both end surfaces of the coils 335 and 336 in the fixed disk body 332 and 333 are arranged close to or coincide with both bottom surfaces of the fixed disk body 332. Further, the magnetic poles of one or a plurality of permanent magnets are arranged close to or coincide with both bottom surfaces of the fixed disk body 332 between the adjacent coils. A rotating disk body 331 is disposed between the fixed disk bodies 111 and 332, and a rotating disk body 112 is disposed between the fixed disk bodies 113 and 332. Further, the rotating disk body 116 is disposed between the fixed disk bodies 115 and 333, and the rotating disk body 334 is disposed between the fixed disk bodies 113 and 333. In the rotating disc bodies 331 and 334, the magnetic poles of the plurality of permanent magnets 337 and 340 are arranged close to or coincide with both bottom surfaces of the rotating disc bodies 331 and 334, as in the rotating disc bodies 112 and 116.

The generator is divided into left and right, and a connecting rotating body 311 having a blade plate 312 attached to the outside is disposed between them. The connecting rotating body 311 is connected to the rotating shaft 203. Therefore, when the vane plate 312 receives the force of the fluid and rotates, the connecting rotating body also rotates, and the rotating shaft 203 also rotates. Further, the outer sides of the fixed disk bodies 111, 113, 332 and the fixed disk bodies 115, 117, 333 are surrounded by the fixed base 301 and the fixed side wall base 302, and the rotating disk bodies 112, 331, 116 are further surrounded. 336 is also disposed therein. Of course, these rotating disk bodies are not in contact with the pedestal 201, the fixed base 301 and the fixed side wall base 302 and are connected to the rotating shaft 203, so that they can freely rotate together with the rotating shaft 203. The fixed side wall base 302 has a shaft hole, and the rotation shaft 203 is contained in the seal bearing 313 disposed in the shaft hole. Therefore, the rotation shaft can freely rotate, and the pedestal 201 and the fixed base 301 can be rotated. And the fluid does not enter the inside surrounded by the fixed side wall base 302. Further, the entire outside can be surrounded by a fixed base or case. Therefore, various members such as coils and permanent magnets arranged inside the rotary plates 112, 331 and 116, 333 and the fixed base are not affected by the fluid. That is, the disk generator of the present invention can be used in a place where a fluid exists. Furthermore, according to the energy which rotates a rotating shaft, these rotation disc bodies and fixed disc bodies can be repeatedly arranged, and electric power generation capability can be enlarged.

In addition, since the outer peripheral shape of the rotating disk body only needs to be prevented from contacting the pedestal 201 by rotation, the outer peripheral shape may be a shape other than a circular shape, for example, a triangle, a rectangle, a polygon, a star, an ellipse, or the like. However, the circular shape is the best because the rotational moment is uniform. In addition, since the rotational energy becomes smaller when the weight of the rotating disk is smaller, the rotation speed can be increased. Therefore, a space is formed in the rotating disk by using a frame frame other than the permanent magnet and the part supporting it. Better to do. Therefore, the outer permanent magnet may be arranged in the same circumferential shape, and the other region may be a frame-shaped rotating disk body having a space. The shape of the fixed disk body is not particularly specified as long as the above-described coils and permanent magnets are arranged. For example, although described as a disc body, the outer peripheral shape may be a triangle, rectangle, polygon, star, ellipse, or the like, or a frame structure that is easy to assemble as a whole. The method of rotating a rotating disk or rotating toroid using a vane plate as a power source is not particularly limited to the vane plate. As described above, the rotation used in an automobile or a motor is a rotating disk. It may be transmitted to a body, a rotating torus, or a rotating shaft. For example, the rotating torus can be rotated by rotating a belt around the rotating torus or rotating the rotating toroid into a gear shape. At that time, optimization of power generation can be realized by using a rotation adjusting mechanism. For example, the rotating disk body 112 is rotated with respect to the rotation of the blade board 312 and the connecting rotating body 311 by increasing the gear ratio of the connecting gear between the blade plate 312 and the connecting rotating body 311 and the rotating disk body 112 or the like. More power can be generated by making them rotate faster.

In FIG. 1, electricity generated by each of the generators 34 and 35 is collected in a power supply device 36, and a supply device 39 for supplying water to a pumping pump or a water storage tank 31 using the power, lighting in a plant factory or a building. The apparatus 38, the temperature control apparatus 38 in a building or a plant factory, the supply apparatus of oxygen, fertilizer, etc. to a plant can be driven. Moreover, the electric power obtained by micro hydroelectric power generation can be used for electric power for cooling and heating in buildings and plant factories, and electric power for various devices used in other buildings and plant factories. The supply device 39 for supplying water is, for example, water from tap water or groundwater, and can be circulated using the pumping pump 33 after filling the water storage tank 31, the water conduit 32, and the condensate pipe 43 to some extent. It is only necessary to replenish as much as possible due to evaporation or leakage. The electric power obtained by the micro hydroelectric power generation can be used as the driving power for the pumping pump 33 and the water supply device 39, the power for pumping up the ground water and transporting it to the supply device, and the power for transporting water from the river to the water supply device. A cap 41 is attached to the upper portion of the condensate pipe 43 (43-2), and water can be supplied from this cap 41 or excess water can be discharged. In addition, when installing a plant factory near a waterfall etc., water is directly supplied to the water storage tank 31 from the waterfall etc., and water discharged from the lower part of the water conduit 32 is discharged to the river etc. It is also possible to generate electricity with the generators 34 and 35 arranged in the tank. In this case, since it is not necessary to use the condensate pipe 43 or the pumping pump 33, extra power consumption is eliminated and more efficient power generation is possible.

The water storage tank 31 is provided with heaters (heating devices) or cooling devices 40 and 46 for heating and cooling the fluid (water) in the water storage tank and / or the condensate pipe. The heater is, for example, a resistance heating device, and the cooling device is, for example, a Peltier device. When the temperature in the plant factory is low, the water in the water storage tank 31 and / or the condensate pipe 43 is warmed by power supply from the power supply device 36, and the hot water is supplied to the water conduit 32. Since the heat radiating plate 37 is attached to each part of the water conduit 32, the heat is supplied to the plant factory to warm it. If there is insufficient heat dissipation, temperature control is also performed at temperature control equipment installed at various locations in the plant factory. When the temperature in the plant factory is high, the water in the water storage tank 31 and the condensate pipe 43 is cooled by supplying power from the power supply device 36, and the cold water is supplied to the water conduit 32. Since the heat radiating plate 37 is attached to each part of the water conduit 32, the cool air is supplied into the plant factory to be cooled. If cold heat is insufficient, the temperature is controlled by temperature control equipment installed at various locations in the plant factory. Electric power used in this temperature control facility is also supplied from the power supply device 36. In FIG. 1, the heaters or cooling devices 40 and 46 are disposed outside the water storage tank 31 and the condensate pipe 43, but may be embedded in the water storage tank and the 31 condensate pipe 43 themselves, or may be disposed in the water. . Or when heating with infrared rays or a lamp, it can also radiate a little away from the water storage tank 31 or the condensate pipe 43. The power (electric power) of the heaters or cooling devices 40 and 46 uses electric power obtained by the micro hydroelectric power generation system. Or you may arrange | position a heater or a cooling device in the pumping pump 33 or other required parts. In addition, the heater or the cooling device may be arranged in the whole of the water storage tank, the condensate pipe or the like, or only a part thereof, and may be appropriately selected depending on the capacity of the heater or the cooling device and the amount of water to be heated or cooled. Thus, using the heaters or cooling devices 40 and 46 and the heat radiating plate 37, the temperature in the plant factory can be maintained in an optimum state while assisting the temperature control equipment arranged in various places in the plant factory.

FIG. 2 is a plan view of a plant factory building. Four micro hydroelectric power generation systems 1 (1-1, 2, 3, 4) are arranged in the side walls 22, 23, 27, and 28 of the building, and a field 51 is installed between them. FIG. 3 is a schematic side view showing a plant factory building from a direction perpendicular to FIG. A field 51 is installed on each floor (first floor, second floor, and third floor) of a three-story building. The field 51 also has a three-layer structure, and an area 53 where plants are cultivated, a device 54 for supplying moisture to the plants, and an illumination device 55 are arranged on a base 52 of each layer. A nutrient supply device, a device for supplying oxygen, and the like can also be arranged. The plant can be of any kind, for example, lettuce, Japanese mustard spinach, spinach, green pepper and other fruits, strawberry and other fruits. Electric power necessary for a water supply device, a lighting device, and the like can also be supplied from the micro hydroelectric power generation system. Since the field 51 is installed between the water conduits 32 of each micro hydroelectric power generation system 1, the temperature is efficiently adjusted by heat radiation from the heat radiating plates 37 arranged at various locations of the water conduit 32. The illumination device 55 can employ various mechanisms. For example, LEDs, incandescent lamps, fluorescent lamps, and high-intensity discharge lamps (for example, mercury lamps, high-pressure sodium lamps, metal halide lamps) can be mentioned. The electric power used by the water supply device 54, the lighting device 55, the nutrient supply device, etc. is also the electric power generated by the micro hydroelectric power generation system. Moreover, the electric power generated by the micro hydroelectric power generation system can be used for the power of the air conditioning equipment in the plant factory. In addition, the electric power generated by the micro hydroelectric power generation system can be used for all devices driven by electric power in the plant factory.

Since conventional plant factories do not have energy self-sufficiency facilities such as electric power, it is necessary to add energy costs such as high electric power to plant production costs, and the price of plants produced by ordinary natural agriculture is high due to high plant production prices. The price competitiveness was poor. That is, there is a problem that the management of the plant factory is not stable. However, in the plant factory using the micro hydroelectric power generation system of the present invention, energy (electric power) can be produced in the plant factory as described above, and all of the energy (electric power) used in the plant factory is used. Or because it can be used as a part, the production cost of plants can be drastically reduced. Moreover, stable production is possible throughout the year, regardless of the weather and environment that are the advantages of plant factories. In addition, selection and management of soil, selection and management of nutrients such as fertilizer, management of moisture supply, selection and management of lighting (irradiation light), temperature / humidity management, oxygen / carbon dioxide management, and other plant growth The optimal environment for growth can be set by scientifically controlling the selection and management of various conditions, enabling plant production to increase, production of plants preferred by humans, supply of plants that are safe and secure for humans, etc. Become.

As described above in detail, the present invention is a system in which a micro hydroelectric power generation system is installed in a plant factory, and energy consumed in the plant factory is covered by energy generated by the micro hydroelectric power generation system. In FIG. 1 to FIG. 3, the field is arranged in a three-story building, but it may be one or two stories, or four or more stories. Although FIG. 1 shows the height of each floor, it is not limited to this value. What is necessary is just to set it as the system which produces | generates electricity optimally, changing the inclination of a water conduit, the amount of water of a reservoir, the amount of water which flows through a water conduit, or changing the size of a generator or the size of a slat according to height. In FIG. 1, the water conduit is bent at each floor, but it may be inclined in one direction and bent at the floor of each floor, and the structure and the way of routing may be changed to an optimum state as appropriate. The size of the plant factory should also be set to the size of the site, or set to a size that can operate the optimum micro hydroelectric power generation system. In addition, it cannot be overemphasized that the said content can be applied to the said other part regarding that it can apply without contradiction also in the other part which did not describe the content described and demonstrated in each part of a specification. Furthermore, the said embodiment is an example, and can be implemented in various changes within the range which does not deviate from a summary, and it cannot be overemphasized that the right range of this invention is not limited to the said embodiment.

The concept of a plant factory using the micro hydroelectric power generation system of the present invention can be applied not only to a plant factory but also to a botanical garden, a normal building (for example, an apartment or an office), and various factories. In other words, a micro hydroelectric power generation system is installed in a botanical garden or a normal building, and the electric power obtained by the micro hydroelectric power generation system is used as a power source necessary for the botanical garden or the building, such as a temperature control mechanism or an air conditioner. It can also be used for (electric power). The moving power of heat exchangers used in botanical gardens and buildings can also be obtained from the micro hydro power generation system. In addition, the water circulating in the micro hydroelectric power generation system can be used as drinking water in the event of a disaster. Furthermore, in a building where a micro hydroelectric power generation system is installed, it can be used as an agricultural factory that works year-round in snowy countries or cold regions using the electric power generated there, or as a disaster prevention.

31 ... Water storage tank, 32 ... Water guide pipe (flow pipe), 33 ... Water pump,
34 ... generator, 35 ... generator, 36 ... power supply, 37 ... heat dissipation part,
38 ... temperature control / lighting, 39 ... water supply device, 40 ... heater (cooling device),
41 ... cap, 42 ... water injection pipe, 43 ... condensate pipe, 45 ... flange,
51 ... field, 46 ... heater (cooling device)

Claims (5)

A plant characterized by having a micro hydroelectric power generation system that generates electricity by hydropower in a plant factory that cultivates plants, and using electric power obtained from the micro hydroelectric power generation system as a power source (energy source) of the plant factory A factory,
The micro hydroelectric power generation system is
A water storage tank for storing water, a water conduit arranged below the water storage tank, one end communicating with the water storage tank and descending toward the other end, and one end communicating with the other end of the water conduit A condensate pipe that rises toward the other end, a plurality of power generation units that are provided in the middle of the water conduit, and that generate power using a water flow flowing through the water conduit, and the other end of the condensate pipe Is connected to the pump for discharging the water in the condensate pipe into the reservoir, and is connected to the plurality of power generation units, and is charged by the power from the plurality of power generation units and A power supply device for supplying electric power, and a suction force generated by the pump discharging water in the condensate pipe generates a uniform suction flow in the condensate pipe and the conduit pipe. So as to form the water flow through the water pipe It made which are, plant factory, which comprises using the power of the power supply as a power plant factory. The plant factory according to claim 1, wherein all or part of the electric power used in the plant factory is generated by the micro power generation system. The water tank and / or the condensate pipe is provided with a heater and / or a cooling device for heating or cooling the water stored in the water tank and / or the water stored in the condensate pipe. The plant factory according to claim 1, wherein all or part of a power source of the cooling device is electric power generated by the micro power generation system. The plant factory according to any one of claims 1 to 3, wherein a heat radiating plate is installed in the water conduit to dissipate heat of heated water or cold water into the plant factory. A temperature control system for setting the temperature in the plant factory to a predetermined temperature is installed, and all or part of the power source of the temperature control system is electric power generated by the micro power generation system, The plant factory according to any one of claims 1 to 4.