KR102400061B1 - Energy self-sustaining power generation system for inland water farm - Google Patents

Abstract

The present invention relates to an energy-independent power generation system for inland aquaculture farms. In particular, rainwater or ocean currents are stored and purified and then electrolyzed to supply oxygen to the inland farms' oxygen supply and sterilization equipment, and hydrogen is produced by direct current using a fuel cell. For inland aquaculture farms that produce power, produce DC power through a solar panel, convert the produced DC power into AC power, store it, and supply oxygen and sterilize the inland farms as driving power to the sterilization and water temperature control devices It relates to an energy-independent power generation system.

Description

Energy-independent power generation system for inland aquaculture farms

The present invention relates to an energy-independent power generation system for inland aquaculture farms. In particular, rainwater or ocean currents are stored and purified and then electrolyzed to supply oxygen to the inland farms' oxygen supply and sterilization equipment, and hydrogen is produced by direct current using a fuel cell. For inland aquaculture farms that produce power, produce DC power through a solar panel, convert the produced DC power into AC power, store it, and supply oxygen and sterilize the inland farms as driving power to the sterilization and water temperature control devices It relates to an energy-independent power generation system.

Hydroelectric power generation induces the flow rate (Q) of rivers or reservoirs located at a high location and uses the potential energy (H) to generate rotational force in the water wheel and convert the rotational motion into electrical energy by a generator directly connected to the water wheel. It is a method of generating electricity. The drop (H) is the maximum vertical distance that can be used, and the drop reduced due to loss is called the rated drop (Net Head), and the flow rate (Q) is the amount of water passing per second (㎥/sec), and the flow rate of the water rotating the water wheel is The larger the number and the larger the drop, the larger the power generation facility capacity and the higher the amount of electricity. That is, the output of hydroelectric power generation can be calculated as hydraulic power output [kW] = 9.8 (gravity acceleration) × flow rate (m3/s) × drop (m) × water turbine generator efficiency (%).

Small-scale hydroelectric power generation is a power generation method that is mainly performed using dams or small rivers in areas with many mountains and valleys. The small-scale hydro power generation was not carried out smoothly due to the lack of economic feasibility due to the low economic efficiency of 35% due to various complaints in the area surrounding the development and the seasonality of rainfall.

However, recently, as the need for small hydro power generation has been amplified due to the local energy supply project and the Renewable Energy Supply Mandatory System (RPS) according to the government’s new and renewable energy supply policy, the existing facilities that do not cause civil complaints in public institutions, such as dams or pumps, have been established. A lot of effort is being made to develop small-scale hydroelectric power generation using lower dams of power plants, agricultural reservoirs, sewage treatment plants, water pipelines, sewage treatment plants, and cooling water from thermal power plants.

If this small hydro power generation is applied to a fish farm or land farm, small hydro power generation is possible using the water thrown into the sea after culturing fish and shellfish. The small hydro power generation effect was expected by installing a small hydroelectric power plant, but a small hydro power generation device manufactured to maximize the rotational efficiency of the rotating body by effectively inducing a load with severe undulations from the flow energy of the existing fluid was installed in the waterway of a farm with a different environment. It is difficult to expect small hydro power generation.

In addition, a large amount of money is consumed to control the water temperature in the aquaculture farm, and the electricity consumed for the water temperature control in the farm occupies a large part, and it is inefficient to use the electricity produced by the small hydro power generation as the electricity to control the water temperature in the farm. and may have adverse effects on the environment as well.

Accordingly, there is a need for an eco-friendly and economical power generation system that is easy to apply in aquaculture.

[Patent Document 1] Korean Patent Publication No. 2020-0018873 (Title of the invention: small hydro power generation system using farm discharge water and power generation method using the same)

Therefore, the present invention has been made in view of the above, and an object of the present invention is to supply oxygen to the oxygen supply and sterilization device of an inland aquaculture farm at an environmentally friendly and low cost, and to supply driving power to a water temperature control device in an inland aquaculture farm It aims to provide an energy-independent power generation system for inland water farms that can provide

In order to achieve the above object, an energy-independent power generation system for an inland water farm according to an embodiment of the present invention includes: an advanced water purification device configured to perform advanced water purification treatment by storing rainwater or seawater supplied through an intake pump; The water purified by the advanced water purification device is electrolyzed to generate hydrogen and oxygen, and the oxygen is supplied to the oxygen supply and sterilization device of the inland fish farm, and the hydrogen undergoes a hydrogen purification process to obtain and store high-purity clean hydrogen. a hydrogen and oxygen supply device configured to discharge more than a set amount of hydrogen after being discharged; and a fuel cell that receives hydrogen from the hydrogen and oxygen supply device and produces DC power using a redox reaction; It is characterized in that it includes; an energy production device including an energy storage unit that is converted into power and stored thereafter to be provided to the water temperature control device of the inland fish farm.

In the energy-independent power generation system for inland water farms according to the above embodiment, the advanced water purification device includes: a screen installed in a water storage tank to filter water supplied to the water storage tank to remove impurities; a sedimentation filter configured to contact the water filtered by the screen to remove suspended matter including dust, sand and rust; a membrane filter configured to remove contaminants including heavy metals, bacteria and viruses contained in the water purified by the sedimentation filter; and a UV (Ultraviolet) filter configured to remove harmful bacteria by irradiating ultraviolet light to the water purified by the membrane filter.

In the energy independent power generation system for an inland water farm according to the above embodiment, the hydrogen and oxygen supply device includes: a water electrolysis device configured to generate hydrogen and oxygen by electrolyzing the water purified by the advanced water purification device; a hydrogen purification unit configured to purify the hydrogen generated by the water electrolysis device to obtain clean hydrogen of high purity; a hydrogen storage unit configured to store high-purity clean hydrogen obtained by the hydrogen purification unit; and an automatic control unit configured to sense the amount of hydrogen input from the hydrogen storage unit to the fuel cell and supply hydrogen from the hydrogen storage unit to the fuel cell when the detected amount of hydrogen is equal to or greater than a set value.

In the energy self-reliant power generation system for inland water farms according to the above embodiment, the energy production device senses the output current or voltage of the solar panel, and when the sensed lower limit of the output current or voltage is greater than or equal to a set value, to provide the output DC power to the energy storage unit, and to provide the output DC power of the fuel cell to the energy storage unit when the detected output current or voltage is within a set range by sensing the output current or voltage of the fuel cell It may further include a configured Battery Management System (BMS).

In the energy-independent power generation system for an inland water farm according to the above embodiment, the energy production device may provide driving power to the advanced water purification device and the hydrogen and oxygen supply device.

In the energy self-reliant power generation system for inland water farms according to the above embodiment, a flow meter for measuring the amount of flowing water is mounted between the water storage tank and the sedimentation filter, between the sedimentation filter and the membrane filter, and in the water outlet pipe of the UV filter. can

In the energy-independent power generation system for inland water farms according to the above embodiment, the advanced water purification device includes: a screen installed in a water storage tank to filter water supplied to the water storage tank to remove impurities; a sedimentation filter configured to contact the water filtered by the screen to remove suspended matter including dust, sand and rust; a membrane filter configured to remove contaminants including heavy metals, bacteria and viruses contained in the water purified by the sedimentation filter; and an ozone filter configured to generate ozone using oxygen generated from the hydrogen and oxygen supply device and to remove heavy metals and pathogens by introducing the ozone into water purified by the membrane filter.

In the energy-independent power generation system for inland water farms according to the above embodiment, the advanced water purification device includes: a screen installed in a water storage tank to filter water supplied to the water storage tank to remove impurities; a sedimentation filter configured to contact the water filtered by the screen to remove suspended matter including dust, sand and rust; a UV filter configured to remove harmful bacteria by irradiating UV light to the water purified by the precipitation filter; and a membrane filter configured to remove contaminants including heavy metals, bacteria and viruses contained in the water purified by the UV filter.

In the energy independent power generation system for inland water farms according to the above embodiment, between the water storage tank and the settling filter, between the settling filter and the UV filter, and the water outlet pipe of the membrane filter, a flow meter for measuring the amount of flowing water is mounted can be

According to the energy self-reliant power generation system for inland aquaculture farms according to an embodiment of the present invention, the rainwater or seawater supplied through the intake pump is stored for advanced purification treatment, and the highly purified water is electrolyzed to generate hydrogen and oxygen, , oxygen is supplied to the oxygen supply and sterilization treatment device of the inland aquaculture farm, and hydrogen is obtained and stored with high purity clean hydrogen through a hydrogen purification process, and then more than a set amount of hydrogen is discharged. It produces DC power using reaction, converts solar energy into electrical energy to produce DC power, converts the produced DC power into AC power, stores it, and provides it to the water temperature control device of the inland fish farm, so it is eco-friendly and low-cost It has an excellent effect of supplying oxygen to the oxygen supply and sterilization device of the inland farm, as well as supplying driving power to the water temperature control device of the inland farm.

1 is an overall configuration diagram of an energy-independent power generation system for an inland water farm according to an embodiment of the present invention.
FIG. 2 is a view showing a screen installed in the water storage tank of FIG. 1 .
3 is a flowchart illustrating the operation of the automatic control unit of FIG. 1 .
4 is a flowchart illustrating an operation of the Battery Management System (BMS) of FIG. 1 .
5 is an overall configuration diagram of an energy-independent power generation system for inland water farms according to another embodiment of the present invention.

In describing the embodiments of the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. And, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification. The terminology used in the detailed description is for the purpose of describing embodiments of the present invention only, and should in no way be construed as limiting. Unless explicitly used otherwise, expressions in the singular include the meaning of the plural. In this description, expressions such as “comprising” or “comprising” are intended to indicate certain features, numbers, steps, acts, elements, some or a combination thereof, one or more other than those described. It should not be construed as excluding the existence or possibility of other features, numbers, steps, acts, elements, or any part or combination thereof.

In each system shown in the figures, elements in some instances may each have the same reference number or different reference numbers to suggest that the represented elements may be different or similar. However, elements may have different implementations and work with some or all of the systems shown or described herein. The various elements shown in the drawings may be the same or different. Which one is referred to as the first element and which is referred to as the second element is arbitrary.

In this specification, when any one component 'transmits', 'transfers' or 'provides' data or signal to another component, one component directly transmits data or signal to another component, of course, and transmitting data or signals to the other component via at least one other component.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is an overall configuration diagram of an energy-independent power generation system for an inland water farm according to an embodiment of the present invention.

As shown in FIG. 1 , the energy-independent power generation system for an inland water farm according to an embodiment of the present invention includes a high-level water purification device 100 , a hydrogen and oxygen supply device 200 , and an energy production device 300 .

The advanced water purification device 100 stores rainwater or seawater supplied by the water intake pump from the internal water surface, performs advanced purification treatment, and provides it to the hydrogen and oxygen supply device 200, the screen 115, the sedimentation filter 120 ), a membrane filter 130 and an Ultraviolet (UV) filter 140 .

The screen 115 is installed in the water storage tank 110 and serves to filter rainwater or seawater that is supplied to and stored in the water storage tank 110 to remove impurities. The screen 115 is, for example, made of a stainless material, has excellent corrosion resistance and durability, and is easy to install and manage, so that it can be applied to various types of water storage tanks. Since the screen 115 operates in a non-powered, power-free manner, it has a low defect rate and can be used for a long period of time. The screen 115 is easy to clean and easy to maintain because it is easy to disassemble and assemble.

The sedimentation filter 120 is in contact with the water filtered by the screen 115 to remove bulky suspended substances such as dust, sand, and rust contained in the water, and the lifespan of the UV filter 140 and the membrane filter 130 . It serves to extend the , and is also called a cement filter.

The membrane filter 130 serves to provide purified water to the UV filter 140 by removing contaminants such as heavy metals, bacteria, and viruses contained in the water purified by the sedimentation filter 120 . The membrane filter 130 may be a thin film such as a liquid film or a solid film capable of selectively passing a specific component to separate a mixture. Purified water can be obtained by selectively filtering only foreign substances mixed in the contaminated water through the thin film.

The UV filter 140 removes harmful bacteria such as Escherichia coli, general bacteria, and viruses that exist in the water by irradiating ultraviolet rays to the water purified by the membrane filter 130 to provide purified water to the water electrolysis device 210 . plays a role The UV filter 140 may supply purified water by sterilizing harmful bacteria by a strong UV-C sterilization wavelength of approximately 253.7 nm generated by a sterilization lamp mounted in the housing.

On the other hand, between the water storage tank 110 and the sedimentation filter 120, between the sedimentation filter 120 and the membrane filter 130, and the water outlet pipe of the UV filter 140 is equipped with a flow meter for measuring the amount of flowing water. .

The hydrogen and oxygen supply device 200 electrolyzes the water purified by the advanced water purification device 100 to generate hydrogen and oxygen, and the oxygen is supplied to the oxygen supply and sterilization device of the inland fish farm, and hydrogen is purified by hydrogen After obtaining and storing high-purity clean hydrogen through a process, it serves to discharge more than a set amount of hydrogen to the energy production device 300 .

The hydrogen and oxygen supply device 200 includes a water electrolysis device 210 , a hydrogen purification unit 220 , a hydrogen storage unit 230 , and an automatic control unit 240 .

The water electrolyzer 210 receives water purified by the advanced water purification device 100 and electrolyzes it to generate hydrogen and oxygen. The water electrolyzer 210 may receive DC power generated from the solar heat collecting plate 330 and use it as driving power, or convert AC power stored in the energy storage unit 340 into DC power and use it.

Oxygen generated by the water electrolysis device 210 may be supplied to and used in an oxygen supply and sterilization device of an inland fish farm, and the generated hydrogen may be provided to the hydrogen purification unit 220 .

The hydrogen purification unit 220 serves to purify the hydrogen generated by the water electrolysis device 210 to obtain clean hydrogen of high purity. The hydrogen purification unit 220 performs hydrogen purification using a technique called, for example, hydrogen PSA (Pressure Swing Adsorption), which adsorbs impurities at a high pressure to purify hydrogen from a mixed gas containing hydrogen to high purity. It is a process technology provided by the process technology, and the pressure is lowered when the adsorbed material is desorbed and regenerated. The pressure is periodically converted from high pressure to low pressure, which is called pressure swing.

The hydrogen storage unit 230 may be a hydrogen tank for storing high-purity clean hydrogen obtained by the hydrogen purification unit 220 . The hydrogen storage unit 230 may be controlled by the automatic control unit 240 to discharge more than a set amount of hydrogen to the fuel cell 310 .

The automatic control unit 240 detects the amount of hydrogen input from the hydrogen storage unit 230 to the fuel cell 310 and, when the detected amount of hydrogen is greater than or equal to a set value, the hydrogen storage unit 230 to supply hydrogen to the fuel cell 310 . to supply The automatic control unit 240 may use the DC power generated by the solar tube heat collecting plate 330 as driving power or convert the AC power stored in the energy storage unit 340 into DC power and use it as driving power.

An operation of the automatic control unit 240 will be described in detail with reference to FIG. 3 .

First, the automatic control unit 240 detects the amount of hydrogen input to the fuel cell 310 (S1), and determines whether the detected amount of hydrogen is equal to or greater than a set value (S2).

If the amount of hydrogen detected in step S2 is equal to or greater than the set value (Y), the automatic control unit 240 supplies the hydrogen stored in the hydrogen storage unit 230 to the fuel cell 310 (S3), and step S1 ) proceeds.

On the other hand, if the amount of hydrogen detected in step S2 is less than the set value (N), the process proceeds to step S1.

The energy production device 300 receives hydrogen from the hydrogen and oxygen supply device 200 to produce DC power using a redox reaction, and converts solar energy into electrical energy to produce DC power, and the produced DC power It is converted into AC power, stored, and then provided to the water temperature control device of the inland fish farm.

The energy generating device 300 includes a fuel cell 310 , a solar heat collecting plate 330 , a BMS 320 , and an energy storage unit 340 .

The fuel cell 310 receives high-purity clean hydrogen from the hydrogen storage unit 230 of the hydrogen and oxygen supply device 200 to produce DC power using a redox reaction. The fuel cell 310 includes a plurality of fuel cell stacks. Each fuel cell stack is converted from a high pressure state to a low pressure state, and combines hydrogen provided with oxygen provided from the air to cause an explosion to generate electric energy.

The solar heat collecting plate 330 converts solar energy into electrical energy to produce direct current power and provides it as driving power to the water electrolysis device 210 and the automatic control unit 240 of the hydrogen and oxygen supply device 200 as well as the energy It serves to provide to the storage unit (340).

The energy storage unit 340 receives DC power produced by the fuel cell 310 and the solar heat collector 330, converts it into AC power, stores it, and provides it to the water temperature control device of the inland fish farm. The energy storage unit 340 may provide driving power to the advanced water purification device 100 and the hydrogen and oxygen supply device 200 .

The BMS 320 detects the output current or voltage of the solar heat collecting plate 330, and when the lower limit of the sensed output current or voltage is equal to or greater than the set value, the output DC power of the solar heat collecting plate 330 is supplied to the energy storage unit 340. In addition to providing, the output current or voltage of the fuel cell 310 is sensed, and when the sensed output current or voltage is within a set range, the output DC power of the fuel cell 310 is provided to the energy storage unit 340 . .

An operation of the BMS 320 will be described in detail with reference to FIG. 4 .

First, the BMS 320 detects the output current or voltage of the solar panel 330 (S10), and determines whether a lower limit value of the sensed output current or voltage is equal to or greater than a set value (S20).

If the lower limit of the output current or voltage of the solar heat collecting plate 330 sensed in step S20 is equal to or greater than the set value (Y), the BMS 320 converts the output DC power of the solar heat collecting plate 330 into the energy storage unit 340 ), and detects the output current or voltage of the fuel cell 310 (S40), and determines whether the detected output current or voltage of the fuel cell 310 is within a set range (S50) .

When the output current or voltage of the fuel cell 310 sensed in step S50 is within the set range (Y), the BMS 320 provides the output DC power of the fuel cell 310 to the energy storage unit 340 . After (S60), the process proceeds to step (S10).

On the other hand, if the lower limit of the output current or voltage of the solar heat collecting plate 330 sensed in step S20 is less than the set value (N), the process proceeds to step S10.

Meanwhile, if the output current or voltage of the fuel cell 310 detected in step S50 is not within the set range (N), the process proceeds to step S30.

According to the energy-independent power generation system for inland aquaculture farms according to an embodiment of the present invention configured as described above, rainwater or seawater supplied through an intake pump is stored for advanced purification treatment, and the highly purified water is electrolyzed to produce hydrogen and oxygen , and oxygen is supplied to the oxygen supply and sterilization treatment device of the inland fish farm, and hydrogen is obtained and stored with high purity clean hydrogen through a hydrogen purification process, and then more than a set amount of hydrogen is discharged, and the discharged hydrogen is supplied It receives and produces DC power using redox reaction, converts solar energy into electrical energy to produce DC power, converts the produced DC power into AC power, stores it, and provides it to the water temperature control device of the inland fish farm. It is possible to supply oxygen to the oxygen supply and sterilization treatment device of the inland aquaculture farm at low cost and to supply driving power to the water temperature control device of the inland aquaculture farm.

Meanwhile, the positions of the membrane filter 130 and the UV filter 140 in FIG. 1 are changeable.

In this case, between the water storage tank 110 and the sedimentation filter 120 , between the sedimentation filter 120 and the UV filter 140 , and in the outlet pipe of the membrane filter 130 , a flow meter for measuring the amount of flowing water is to be installed. can

On the other hand, FIG. 5 is an overall configuration diagram of an energy independent power generation system for an inland water farm according to another embodiment of the present invention, and the difference from the energy independent power generation system for an inland water farm of FIG. 1 is a UV filter in the advanced water purification device 100 (140) is replaced with the ozone filter (150).

The ozone filter 150 generates ozone by using oxygen generated from the water electrolysis device 210 , and the ozone is added to water purified by the membrane filter 130 , and heavy metals contained in the water, Vibrio bacteria, and Escherichia coli It serves to supply purified water to the water electrolysis device 210 by removing pathogens such as.

In the drawings and specification, an optimal embodiment is disclosed, and specific terms are used, but these are used only for the purpose of describing the embodiments of the present invention, and are used to limit the meaning or limit the scope of the present invention described in the claims it didn't happen Therefore, it will be understood by those of ordinary skill in the art that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

100: advanced water purification device
110: water tank
115: screen
120: sedimentation filter
130: UV filter
140: membrane filter
150: ozone filter
200: hydrogen and oxygen supply device
210: water electrolysis device
220: hydrogen purification unit
230: hydrogen storage unit
240: automatic control
300: energy production device
310: fuel cell
320: BMS
330: solar heat collecting plate
340: energy storage unit

Claims (9)

After purifying rainwater or ocean currents, electrolysis is performed to supply oxygen to the inland fish farm and to the sterilization system. Hydrogen produces DC power using fuel cells and DC power through solar panels. An energy-independent power generation system for inland water farms that converts and stores the DC power to AC power and provides it as driving power to the oxygen supply and sterilization device and the water temperature control device of the inland fish farm,
an advanced water purification device 100 configured to perform advanced water purification treatment by storing rainwater or seawater supplied through a water intake pump;
The water purified by the advanced water purification device is electrolyzed to generate hydrogen and oxygen, and the oxygen is supplied to the oxygen supply and sterilization device of the inland fish farm, and the hydrogen undergoes a hydrogen purification process to obtain and store high-purity clean hydrogen. a hydrogen and oxygen supply device 200 configured to discharge hydrogen greater than or equal to a preset amount; and
A fuel cell 310 that receives hydrogen from the hydrogen and oxygen supply device and produces DC power using a redox reaction, a solar heat collecting plate 330 that converts solar energy into electrical energy to produce DC power; An energy production device 300 including an energy storage unit 340 that converts and stores the DC power produced by the fuel cell and the solar panel into AC power and then provides the stored AC power to the water temperature control device of the inland fish farm; including,
The hydrogen and oxygen supply device 200 is
a water electrolysis device 210 configured to generate hydrogen and oxygen by electrolyzing the water purified by the advanced water purification device;
a hydrogen purification unit 220 configured to purify the hydrogen generated by the water electrolysis device to obtain clean hydrogen of high purity;
a hydrogen storage unit 230 configured to store high-purity clean hydrogen obtained by the hydrogen purification unit; and
An automatic control unit 240 configured to detect the amount of hydrogen input from the hydrogen storage unit to the fuel cell 310 and supply hydrogen from the hydrogen storage unit to the fuel cell when the detected amount of hydrogen is greater than or equal to a set value. and
The energy production device 300 is
When the output current or voltage of the solar collector 330 is sensed and the lower limit of the sensed output current or voltage is equal to or greater than a set value, the output DC power of the solar collector is provided to the energy storage unit 340, and
A battery management system (BMS) 320 configured to detect an output current or voltage of the fuel cell 310 and provide output DC power of the fuel cell to the energy storage unit when the detected output current or voltage is within a set range further comprising,
The advanced water purification device 100
a screen 115 installed in the water storage tank 110 to filter the water supplied to the water storage tank to remove impurities;
a sedimentation filter 120 configured to contact the water filtered by the screen to remove suspended matter including dust, sand and rust;
a membrane filter 130 configured to remove contaminants including heavy metals, bacteria and viruses contained in the water purified by the sedimentation filter; and
An ozone filter 150 configured to generate ozone using the oxygen generated from the hydrogen and oxygen supply device 200 and to remove heavy metals and pathogens by introducing the ozone into the water purified by the membrane filter. Energy-independent power generation system for inland fish farms.
delete delete delete The method of claim 1,
The energy generating device 300 is an energy self-sufficient power generation system for inland water farms that provides driving power to the advanced water purification device 100 and the hydrogen and oxygen supply device 200 .
delete delete delete delete

Images