CN114856722A - Power generation and energy storage circulating system - Google Patents
Power generation and energy storage circulating system Download PDFInfo
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- CN114856722A CN114856722A CN202210293920.1A CN202210293920A CN114856722A CN 114856722 A CN114856722 A CN 114856722A CN 202210293920 A CN202210293920 A CN 202210293920A CN 114856722 A CN114856722 A CN 114856722A
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- 238000010248 power generation Methods 0.000 title claims abstract description 156
- 238000004146 energy storage Methods 0.000 title claims abstract description 68
- 239000000446 fuel Substances 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 127
- 239000001257 hydrogen Substances 0.000 claims description 48
- 229910052739 hydrogen Inorganic materials 0.000 claims description 48
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 44
- 238000002485 combustion reaction Methods 0.000 claims description 43
- 238000005868 electrolysis reaction Methods 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000002918 waste heat Substances 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005381 potential energy Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 150000002431 hydrogen Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a power generation and energy storage circulating system, which comprises: the device comprises a first power generation device, an energy storage device and a conversion device, wherein the first power generation device generates electric energy by burning fuel, the energy storage device is connected with the first power generation device and used for collecting the electric energy generated by the first power generation device, the energy storage device is also used for storing raw materials of the fuel used for power generation of the first power generation device, the conversion device is connected with the energy storage device and used for converting the raw materials into the fuel used for power generation of the first power generation device, and the conversion device is connected with the first power generation device to supply the fuel to the first power generation device. According to the power generation and energy storage circulating system disclosed by the embodiment of the invention, the energy storage device collects and stores redundant electric energy, so that the waste of energy is avoided. Under the condition of higher power consumption, the energy storage device transmits the stored electric energy to the power grid, so that the condition of insufficient power supply of the power grid is avoided. The conversion device converts the raw material into the fuel of the first power generation device, and the working efficiency of the system is improved.
Description
Technical Field
The invention relates to the technical field of power generation, in particular to a power generation and energy storage circulating system.
Background
The power generation of the gas turbine is high-efficiency heat-power conversion equipment, and the electric energy generated by the power generation of the gas turbine is transmitted to a power grid. When the gas turbine continuously works, the annual working time can reach 8000h, when the electricity demand is low, a large amount of redundant electric energy exists, and if the electric energy is not stored, energy waste can be caused. In order to solve the problem of resource waste, the part of electric energy needs to be efficiently stored, and the electric energy is put into use when the power consumption demand is high, so that the situation of insufficient power supply amount is compensated. Also, with the progress of science and technology and the development of society, people are gradually aware of the importance of environmental protection, and the use of cleaner energy as fuel for gas turbines has become a hot spot of research nowadays due to the requirement of reducing pollutant emissions.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides a power generation and energy storage circulating system which has the characteristics of energy conservation, environmental protection, high-efficiency energy storage and energy cyclic utilization.
The power generation and energy storage circulating system of the embodiment of the invention comprises: the system comprises a first power generation device, an energy storage device and a conversion device, wherein the first power generation device generates electric energy by burning fuel, the energy storage device is connected with the first power generation device and is used for collecting the electric energy generated by the first power generation device, the energy storage device is also used for storing raw materials of the fuel used for power generation of the first power generation device, the conversion device is connected with the energy storage device and is used for converting the raw materials into the fuel used for power generation of the first power generation device, and the conversion device is connected with the first power generation device so as to provide the fuel for the first power generation device.
According to the power generation and energy storage circulating system disclosed by the embodiment of the invention, the first power generation device generates electric energy and transmits the electric energy to the power grid. When the power consumption is less, one part of the electric energy generated by the first power generation device is transmitted to the power grid, and the rest part of the electric energy is collected and stored by the energy storage device, so that the waste of energy is avoided. When the power consumption is high, the electric energy produced by the first power generation device is completely transmitted to the power grid, and the stored electric energy is transmitted to the power grid by the energy storage device, so that the condition that the power supply quantity of the power grid is insufficient is avoided. And the raw materials stored in the energy storage device are converted into fuel by the conversion device and the fuel is supplied to the first power generation device for combustion, so that the working efficiency of the system is improved.
Therefore, the power generation and energy storage circulating system provided by the embodiment of the invention solves the problems of energy waste when the power consumption demand is low and insufficient power supply when the power consumption demand is high.
In some embodiments, the raw material is water and the fuel of the first power generation device is hydrogen.
In some embodiments, the energy storage device includes a water pump and two water storage assemblies, wherein the altitude of one water storage assembly is higher than the altitude of the other water storage assembly, the water pump is connected to the two water storage assemblies and is used for pumping water in the water storage assembly at a low altitude into the water storage assembly at a high altitude, the water pump is connected to the first power generation device, and the electric energy required by the operation of the water pump is provided by the first power generation device.
In some embodiments, the first power generation device is coupled to the conversion device and provides electrical energy for the conversion device to convert the raw material, and the conversion device includes an electrolysis module coupled to the water storage module for electrolytically treating water in the water storage module.
In some embodiments, the conversion device further comprises a storage assembly connected with the electrolysis assembly to collect hydrogen and oxygen generated by the electrolysis of water.
In some embodiments, the first power generation device comprises a compressor, a combustion chamber, a turbine and a generator which are connected in sequence, and the storage assembly is connected with the combustion chamber to provide hydrogen for the combustion chamber.
In some embodiments, the combustion chamber is connected to the water storage assembly for recovering water produced by the combustion of hydrogen gas in the combustion chamber.
In some embodiments, the system further comprises a second power generation device, wherein the second power generation device is connected with the two water storage assemblies, water in the water storage assembly at high altitude flows into the water storage assembly at low altitude through the second power generation device, and the second power generation device converts potential energy of water flow into electric energy.
In some embodiments, a third power generation device is included and is coupled to the turbine and configured to convert thermal energy exhausted from the turbine into electrical energy.
In some embodiments, the third power generation device includes a waste heat boiler and a steam turbine generator, the turbine is connected to the waste heat boiler to provide high-temperature flue gas to the waste heat boiler, and the waste heat boiler is connected to the steam turbine generator.
Drawings
FIG. 1 is a schematic diagram of a power generation and energy storage cycle system according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a power generation and energy storage circulation system according to an embodiment of the invention.
Reference numerals:
a power grid 100,
A first power generation device 1, a compressor 101, a combustion chamber 102, a turbine 103, a generator 104,
Energy storage device 2, water pump 201, water storage component 202
The conversion device 3, the electrolysis assembly 301, the storage assembly 302, the hydrogen storage chamber 3021, the hydrogen compressor 3022, the oxygen storage chamber 3023, the oxygen compressor 3024,
A second power generation device 4,
A third power generation device 5, a waste heat boiler 501, and a steam turbine generator 502.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The power generation and energy storage circulation system of the embodiment of the invention is described below with reference to the accompanying drawings.
As shown in fig. 1, the power generation and energy storage circulation system according to the embodiment of the present invention includes: a first power generation device 1, an energy storage device 2 and a conversion device 3.
The first power generation device 1 generates electric energy by burning fuel, the energy storage device 2 is connected with the first power generation device 1 and is used for collecting the electric energy generated by the first power generation device 1, the energy storage device 2 is also used for storing raw materials of the fuel used for power generation of the first power generation device 1, the conversion device 3 is connected with the energy storage device 2 and is used for converting the raw materials into the fuel used for power generation of the first power generation device 1, and the conversion device 3 is connected with the first power generation device 1 to supply the fuel to the first power generation device 1.
It is understood that the first power generation device 1 generates electricity by burning fuel, and the first power generation device 1 delivers the generated electric energy to the grid 100. During the power consumption peak period, a part of the electric energy generated by the first power generation device 1 is transmitted to the power grid 100, and the redundant electric energy is collected and stored by the energy storage device 2, so that the situation that the redundant electric energy is unavailable and the energy is wasted is avoided. During the peak period of power consumption, the electric energy generated by the first power generation device 1 is completely transmitted to the power grid 100, and the energy storage device 2 also transmits the stored electric energy to the power grid 100, so that the situation of insufficient power supply is avoided.
Furthermore, the energy storage device 2 is used for storing raw materials of fuel used for combustion of the first power generation device 1 in addition to electric energy of the first power generation device 1, thereby providing high efficiency and convenience for fuel supply of the first power generation device 1.
Alternatively, the fuel of the first power generation device 1 is a combustible substance such as hydrogen, methane, or natural gas. The energy storage device 2 stores the raw material, converts the raw material into the combustible substance by the conversion device 3, and conveys the converted combustible substance to the first power generation device 1 for power generation.
Further, the first power generation device 1 is connected to the grid 100, and the first power generation device 1 is also connected to the energy storage device 2. The energy storage device 2 is connected to the power grid 100, and the energy storage device 2 is also connected to the converter device 3. The conversion means 3 are connected to the first power generation means 1. Thereby realizing the transmission of energy and the delivery of fuel.
In the power generation and energy storage circulation system of the embodiment of the invention, the first power generation device 1 generates electric energy and transmits the electric energy to the power grid 100. When the power consumption is less, a part of the electric energy generated by the first power generation device 1 is transmitted to the power grid 100, and the rest of the electric energy is collected and stored by the energy storage device 2, so that the waste of energy is avoided. When the power consumption is high, all the electric energy generated by the first power generation device 1 is transmitted to the power grid 100, and the energy storage device 2 transmits the stored electric energy to the power grid 100, so that the situation that the power supply amount of the power grid 100 is insufficient is avoided. And the raw materials stored in the energy storage device 2 are converted into fuel by the conversion device 3 and the fuel is supplied to the first power generation device 1 for combustion, so that the working efficiency of the system is improved.
In some embodiments, the raw material is water and the fuel of the first power generation device 1 is hydrogen.
It can be understood that the fuel of the first power generation device 1 is hydrogen, and the clean energy hydrogen is used as the fuel of the first power generation device 1, compared with the conventional fuel natural gas, the CO in the combustion product 2 And CO is replaced with clean combustion product water, which is beneficial for reducing carbon emissions.
The raw material is water, which by conversion in the conversion means 3 is able to generate the hydrogen fuel required by the first power generation means 1. The combustion product of the first power generation device 1 after combustion of hydrogen is also water. Therefore, the combustion products of the first power generation device 1 can also be supplemented for the raw material stored in the energy storage device 2.
Alternatively, the raw material stored in the energy storage device 2 is water, and the first power generation device 1 is connected to the energy storage device 2, so that the first power generation device 1 discharges water, which is a combustion product obtained by combusting hydrogen, to the energy storage device 2, thereby performing a supply function of the raw material.
In some embodiments, as shown in fig. 2, the energy storage device 2 includes a water pump 201 and two water storage assemblies 202, wherein the altitude of one water storage assembly 202 is higher than the altitude of the other water storage assembly 202, the water pump 201 is connected to the two water storage assemblies 202 and is used for pumping the water pump 201 in the low altitude water storage assembly 202 into the high altitude water storage assembly 202, the water pump 201 is connected to the first power generation device 1, and the electric energy required by the operation of the water pump 201 is provided by the first power generation device 1.
It can be understood that, during the peak period of power consumption, the redundant electric energy generated by the first power generation device 1 is used for the operation of the water pump 201, and the water pump 201 in the low-altitude water storage assembly 202 is driven into the high-altitude water storage assembly 202 by the water pump 201, so that the electric energy is converted into the gravitational potential energy of water, thereby realizing the storage of the electric energy and avoiding the waste of energy. And the water in the water storage assembly 202 is also the raw material of the fuel required by the first power generation device 1, and the combustion products of the first power generation device 1 can be directly discharged into the water storage assembly 202, so that the working efficiency of the system is improved, and the efficient utilization of energy is further realized.
In addition, the technical efficiency of pumped storage is high, and can reach 65% -80% generally. The load response speed is high, only 5min is needed from full stop to full power generation, only 1min is needed from full stop to full load water pumping, and the system has the advantages of large energy storage capacity, high power, low cost and high efficiency.
Optionally, the water storage assembly 202 is a reservoir, wherein one reservoir is constructed at a low altitude and the other reservoir is constructed at a high altitude. A riverway is arranged between the two reservoirs and is used for discharging water from the high-altitude reservoir to the low-altitude reservoir.
Further, a water conveying pipeline is further arranged between the two reservoirs, the water pump 201 is located in the low-altitude reservoir and connected with the water conveying pipeline, and the water pump 201 is used for pumping water in the low-altitude reservoir into the high-altitude reservoir through the water conveying pipeline. The water pump 201 is connected to the first power generation device 1, and the first power generation device 1 supplies electric power to the water pump 201.
According to the power generation and energy storage circulating system, the first power generation device 1 supplies electric energy to the water pump 201, so that water in the low-altitude water reservoir is input into the high-altitude water reservoir, the electric energy is converted into gravitational potential energy, and the function of storing redundant electric energy is realized. The water in the water reservoir is used as a raw material and is converted into hydrogen by the conversion device 3 to be supplied to the first power generation device 1 for combustion, and the combustion products of the first power generation device 1 are discharged into the water reservoir again, so that the material is recycled.
In some embodiments, as shown in fig. 1 and 2, the first power generation device 1 is connected to the conversion device 3 and provides the electric energy required by the conversion device 3 in the process of converting the raw material, and the conversion device 3 comprises an electrolysis assembly 301, and the electrolysis assembly 301 is connected to the water storage assembly 202 to electrolyze the water in the water storage assembly 202.
It will be appreciated that the first power generation device 1 is connected to the conversion device 3, and the conversion device 3 is also supplied with electric energy by the first power generation device 1, thereby further achieving efficient use of energy. The electrolysis component 301 electrolyzes water in the water storage component 202 to generate hydrogen, the hydrogen is conveyed to the first power generation device 1 to be combusted, the first power generation device 1 regenerates electric energy after combusting the hydrogen, and recycling of energy is achieved.
Optionally, the electrolysis module 301 is connected to the water storage module 202, the electrolysis module 301 is further connected to the first power generation device 1, the first power generation device 1 provides electric energy for the electrolysis module 301, the electrolysis module 301 electrolyzes water in the water storage module 202, and hydrogen generated by electrolysis is delivered to the first power generation device 1.
Further, a hydrogen pipeline is arranged between the electrolysis assembly 301 and the first power generation device 1, a hydrogen compressor 3022 is arranged on the hydrogen pipeline, and hydrogen generated by electrolyzing water is conveyed to the first power generation device 1 through the hydrogen pipeline and under the action of the hydrogen compressor 3022.
In some embodiments, as shown in fig. 1 and 2, the conversion device 3 further comprises a storage assembly 302, and the storage assembly 302 is connected with the electrolysis assembly 301 to collect hydrogen and oxygen generated by the electrolysis of water.
It will be appreciated that the storage assembly 302 collects hydrogen and oxygen generated by the electrolysis of water for use by the corresponding process equipment, indirectly avoiding energy waste.
Optionally, the storage assembly 302 includes a hydrogen storage chamber 3021 and an oxygen storage chamber 3023, the hydrogen storage chamber 3021 is connected to the electrolysis assembly 301 through a hydrogen pipeline, an oxygen pipeline is provided between the oxygen storage chamber 3023 and the electrolysis assembly 301, and an oxygen compressor 3024 is provided on the oxygen pipeline.
Therefore, hydrogen and oxygen generated by the electrolysis module 301 after electrolyzing water can enter the hydrogen storage chamber 3021 for storage or enter the first power generation device 1 for combustion through the hydrogen pipeline and under the action of the hydrogen compressor 3022. Oxygen enters the oxygen storage chamber 3023 through an oxygen pipeline and under the action of the oxygen compressor 3024 to be stored, so as to be used.
In some embodiments, as shown in fig. 2, the first power generation device 1 includes a compressor 101, a combustor 102, a turbine 103 and a power generator 104 connected in sequence, and a storage assembly 302 is connected to the combustor 102 to supply hydrogen to the combustor 102.
It will be appreciated that air enters the compressor 101 and undergoes a process of near adiabatic compression, the compressor 101 communicating with the combustion chamber 102. The hydrogen gas enters the combustion chamber 102 to undergo a process of approximately isobaric expansion (combustion), and the combustion chamber 102 communicates with the turbine 103 and undergoes a process of approximately adiabatic expansion in the turbine 103, thereby causing the generator 104 to generate electricity.
Alternatively, the compressor 101, the combustion chamber 102 and the turbine 103 are connected in series and communicated with each other, and the turbine 103 is connected with the generator 104. The hydrogen pipeline is communicated with the combustion chamber 102, hydrogen generated by electrolyzing water is pressed into the combustion chamber 102 under the action of the hydrogen compressor 3022, the compressor 101 presses outside air into the combustion chamber 102, the hydrogen and oxygen in the air are combusted to generate heat energy, and blades in the turbine 103 rotate under the action of pressure difference, so that chemical energy generated by fuel combustion is converted into electric energy and mechanical energy. The turbine 103 drives the generator 104 to operate, and converts mechanical energy into electric energy, and the electric energy generated by the generator 104 is transmitted to the power grid 100.
In some embodiments, as shown in fig. 1 and 2, the combustion chamber 102 is coupled to a water storage assembly 202, and the water storage assembly 202 is used to recover water produced by the combustion chamber 102 after combustion of hydrogen gas.
Optionally, the combustion chamber 102 is connected to the low-altitude water storage assembly 202, and water generated after the hydrogen in the combustion chamber 102 is combusted is recycled to the low-altitude water storage assembly 202, so as to realize the recycling of raw materials.
In some embodiments, as shown in fig. 2, a second power generation device 4 is further included, the second power generation device 4 is connected to two water storage assemblies 202, water in the water storage assembly 202 at high altitude flows into the water storage assembly 202 at low altitude through the second power generation device 4, and the second power generation device 4 converts potential energy of water flow into electric energy.
It can be understood that, during the peak period of power consumption, the surplus power generated by the first power generation device 1 is converted into the gravitational potential energy of water and stored in the high-altitude water reservoir, and the second power generation device 4 is used for converting the gravitational potential energy of water into electric energy again and transmitting the electric energy to the power grid 100, so as to avoid the situation of insufficient power supply during the peak period of power consumption.
Optionally, the second power generation device 4 is a water turbine, the water turbine is arranged in a river channel between two reservoirs, the water turbine is arranged adjacent to the low-altitude reservoir, and the water turbine converts potential energy of water flow into electric energy and transmits the electric energy to the power grid 100, so that the electric energy is transmitted to the power grid 100 during a peak period of power utilization, and therefore the electric energy stored by the energy storage device 2 is supplemented to the power grid 100 for use.
In some embodiments, as shown in fig. 1 and 2, a third power plant 5 is further included, the third power plant 5 being coupled to the turbine 103 and configured to convert thermal energy exhausted from the turbine 103 into electrical energy.
It will be appreciated that the heat energy generated by the combustion of hydrogen in the combustion chamber 102 is transferred to the turbine 103, the turbine 103 discharges the heat energy to the third power generation device 5, and the third power generation device 5 converts the heat energy into electric energy, thereby achieving energy cascade utilization.
In some embodiments, as shown in fig. 2, the third power generation device 5 includes a waste heat boiler 501 and a steam turbine generator 502, the turbine 103 is connected to the waste heat boiler 501 to supply high temperature flue gas to the waste heat boiler 501, and the waste heat boiler 501 is connected to the steam turbine generator 502.
Optionally, the exhaust-heat boiler 501 is connected to the turbine 103, the high-temperature flue gas exhausted by the turbine 103 is conveyed to the exhaust-heat boiler 501, and the water in the exhaust-heat boiler 501 is heated at high temperature to generate steam. The exhaust-heat boiler 501 is connected to the steam turbine generator 502, and the steam generated by the exhaust-heat boiler 501 is sent to the steam turbine generator 502 and used by the steam turbine generator 502 for generating electricity.
According to the power generation and energy storage circulating system provided by the embodiment of the invention, the first power generation device 1 and the energy storage device 2 are combined, and the efficient power generation device for generating power by hydrogen combustion is combined with the energy storage device, so that the full utilization of energy is realized. Moreover, hydrogen is used as fuel for combustion power generation, so that the first power generation device 1 has the characteristics of high efficiency, cleanness and environmental protection, and is further beneficial to reducing carbon emission.
The redundant electric energy of the first power generation device 1 is stored in a pumped storage mode, and the device has the characteristics of large energy storage capacity, large power, low cost, high efficiency and quick response. In addition, water required by hydrogen preparation can be provided, and efficient utilization of energy is realized. At the same time as the completion of the entire energy cycle, the industrially important raw materials hydrogen and oxygen are also produced and stored by the hydrogen storage chamber 3021 and the oxygen storage chamber 3023.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A power generation and energy storage circulation system, comprising:
a first power generation device that generates electric power by burning fuel;
the energy storage device is connected with the first power generation device and used for collecting the electric energy generated by the first power generation device, and the energy storage device is also used for storing raw materials of fuel used for power generation of the first power generation device;
a conversion device coupled to the energy storage device and configured to convert the raw material into fuel for use in generating electricity by the first electricity generation device, the conversion device coupled to the first electricity generation device to provide fuel to the first electricity generation device.
2. A power generation and storage circulation system according to claim 1, wherein the raw material is water and the fuel of the first power generation device is hydrogen.
3. The power generation and energy storage circulation system according to claim 1, wherein the energy storage device comprises a water pump and two water storage assemblies, wherein the altitude of one water storage assembly is higher than that of the other water storage assembly, the water pump is connected with the two water storage assemblies and used for pumping water in the water storage assembly at low altitude into the water storage assembly at high altitude, the water pump is connected with the first power generation device, and the electric energy required by the operation of the water pump is provided by the first power generation device.
4. A power generation and energy storage circulation system according to claim 3, wherein the first power generation unit is connected to the conversion unit and provides the electrical energy required by the conversion unit in converting the raw material, and the conversion unit comprises an electrolysis module connected to the water storage module for electrolysis of the water in the water storage module.
5. The power generation and energy storage circulation system according to claim 4, wherein the conversion device further comprises a storage assembly connected with the electrolysis assembly for collecting hydrogen and oxygen generated by the electrolysis of water.
6. The power generation and energy storage circulation system according to claim 5, wherein the first power generation device comprises a compressor, a combustion chamber, a turbine and a power generator which are connected in sequence, and the storage assembly is connected with the combustion chamber to provide hydrogen for the combustion chamber.
7. A power generation and energy storage circulation system according to claim 6, wherein the combustion chamber is connected with the water storage assembly, and the water storage assembly is used for recovering water generated after the combustion chamber burns hydrogen.
8. A power generation and energy storage circulation system according to claim 3, further comprising a second power generation device, wherein the second power generation device is connected with the two water storage assemblies, water in the water storage assembly at high altitude flows into the water storage assembly at low altitude through the second power generation device, and the second power generation device converts potential energy of water flow into electric energy.
9. A power generating and storage cycle system according to claim 6, further comprising a third power generation device coupled to the turbine for converting thermal energy discharged from the turbine into electrical energy.
10. A power generation and energy storage cycle system according to claim 9, wherein the third power generation device comprises a waste heat boiler and a steam turbine generator, the turbine is connected with the waste heat boiler to provide high temperature flue gas to the waste heat boiler, and the waste heat boiler is connected with the steam turbine generator.
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| CN202210293920.1A CN114856722A (en) | 2022-03-23 | 2022-03-23 | Power generation and energy storage circulating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210293920.1A CN114856722A (en) | 2022-03-23 | 2022-03-23 | Power generation and energy storage circulating system |
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| US20090322090A1 (en) * | 2008-06-25 | 2009-12-31 | Erik Wolf | Energy storage system and method for storing and supplying energy |
| EP2503114A2 (en) * | 2011-03-22 | 2012-09-26 | RWE Power AG | Method for storing and dispensing energy and gas turbine power plant |
| CN104481617A (en) * | 2014-11-03 | 2015-04-01 | 东南大学 | Energy storing device based on redox reaction and energy storing method and generating method thereof |
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