CN215170505U - Pumped storage power generation system - Google Patents
Pumped storage power generation system Download PDFInfo
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- CN215170505U CN215170505U CN202120234085.5U CN202120234085U CN215170505U CN 215170505 U CN215170505 U CN 215170505U CN 202120234085 U CN202120234085 U CN 202120234085U CN 215170505 U CN215170505 U CN 215170505U
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- 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
Abstract
A pumped storage power generation system is reconstructed from a raw water power station under the condition of not changing the layout of the raw water power station, wherein one part of the engineering and equipment of the reconstructed pumped storage power generation system is from the original engineering and equipment of the raw water power station, and the other part of the engineering and equipment of the raw water power station is from the engineering and equipment of the raw water power station after reconstruction or reconstruction; the system can generate electricity by using the water energy of the upper reservoir in function, can also pump the water of the lower reservoir into the upper reservoir for storing energy by using the electric energy of a power grid, and transforms a single-function system which can only generate electricity of a raw water power station into a double-function system which can generate electricity and store energy; the utility model discloses novel structure is unique, can effectively solve pumped storage power station construction cycle long, and the construction cost is high, and the construction cost has been practiced thrift greatly to the problem of site selection difficulty, is the innovation in the construction of pumped storage power station, also provides technical support for the pumped storage power station transformation of conventional power station, and social, economic benefits and energy-concerving and environment-protective benefit are showing.
Description
Technical Field
The utility model belongs to the technical field of water and electricity, energy storage and clean energy and specifically relates to a pumped storage power generation system is related to.
Background
At present, in order to improve the stability of an electric power system, improve the frequency modulation and peak shaving capacity of the electric power system, enhance the flexibility of the electric power system, and fully utilize and consume clean energy such as wind power and photovoltaic power generation, a pumped storage power generation system needs to be vigorously developed. However, because the construction cost of the pumped storage power station is high, the construction period is long, the site selection is difficult, the water amount needs to be supplemented due to continuous evaporation and leakage, and the civil construction cost of the pumped storage power station accounts for about 70% of the construction cost of the whole power station, if the novel pumped storage power station can be constructed by utilizing the resources of engineering, equipment, water energy and the like of the conventional hydropower station, the problems can be solved, but no public report is found.
The utility model discloses a novel pumped storage power generation system is under the condition that does not change original conventional hydroelectric set overall arrangement, the pumped storage power generation system that the original reservoir of make full use of conventional hydroelectric station unit, the dam, the factory building, the inlet tube, the runner room, rebuild on the basis of original engineering and equipment such as draft tube and obtains, the pumped storage two-way operation that the one-way electricity generation of realizing original conventional hydroelectric station changed into pumped storage system, both can effectively solve wind-powered electricity generation, clean energy's such as photovoltaic utilization ratio problem, can also effectively solve the above-mentioned problem in the construction of pumped storage power generation system, the report is not seen publicly so far.
SUMMERY OF THE UTILITY MODEL
To above-mentioned purpose, for overcoming prior art's defect, the utility model discloses an aim at is exactly through a pumped storage power generation system, can effectively solve newly-built pumped storage power station construction cost height, construction cycle length, the problem of site selection difficulty and water yield replenishment, simultaneously, can also solve clean energy's such as wind-powered electricity generation, photovoltaic utilization ratio problem.
In order to achieve the above object, the present invention provides a pumped storage power generation system, which comprises an upper storage, a dam, a factory building, a water inlet pipe, a water pump turbine, a generator motor, a main shaft, a runner chamber, a draft pipe, a lower storage, a reversible unit auxiliary device, a reversible unit speed regulator system, a reversible electrical and control system, a new upper storage dam, and a lower storage dam, wherein the pumped storage power generation system is reconstructed from a raw water power station without changing the layout of the raw water power station, and a part of the reconstructed engineering and equipment of the pumped storage power generation system is derived from the original engineering and equipment of the raw water power station, and the other part is derived from the engineering and equipment of the raw water power station after reconstruction; the system can generate electricity by using the water energy of the upper reservoir in function, can also pump the water of the lower reservoir into the upper reservoir for storing energy by using the electric energy of a power grid, and transforms a single-function system which can only generate electricity of a raw water power station into a double-function system which can generate electricity and store energy;
the upper reservoir is communicated with a water flow inlet of the water inlet pipe, a water flow outlet of the water inlet pipe is communicated with a water flow inlet of the pump water turbine, a water flow outlet of a runner of the pump water turbine is communicated with a water flow inlet of the draft tube, a water flow outlet of the draft tube is communicated with the lower reservoir to form a water flow channel of engineering and equipment, and water flows through the water flow channel formed by the upper reservoir, the water inlet pipe, the pump water turbine, the draft tube and the lower reservoir, so that the water can flow in the forward direction and the reverse direction, and a bidirectional conversion structure between mechanical energy and water energy is formed; the pump turbine is connected with the generator motor through the main shaft to form a mechanical rotating part of a pumped storage power generation system of the reversible water turbine generator set, so that bidirectional conversion between mechanical energy and electric energy is realized; the reversible type water turbine generator set auxiliary equipment is connected with the reversible type water turbine generator set to form an auxiliary function system required by the bidirectional operation of the reversible type water turbine generator set; the reversible unit speed regulator system is connected with the reversible hydroelectric generating set to form a speed regulating and controlling system required by the bidirectional operation of the reversible hydroelectric generating set; one end of the reversible electrical and control system is connected with the reversible water-turbine generator set to realize excitation, regulation and control required by the bidirectional operation of the reversible water-turbine generator set, and the other end of the reversible electrical and control system is connected with a power grid to form an electric energy transmission channel between the pumped storage power generation system and the power grid.
The utility model discloses novel structure is unique, can effectively solve pumped storage power station construction cycle long, and the construction cost is high, and the construction cost has been practiced thrift greatly to the problem of site selection difficulty, is the innovation in the construction of pumped storage power station, also provides technical support for the pumped storage power station transformation of conventional power station, and social, economic benefits and energy-concerving and environment-protective benefit are showing.
Drawings
FIG. 1 is a schematic diagram of a pumped-hydro energy storage power generation system of the present invention;
wherein: 1-upper warehouse, 2-dam, 3-factory building, 4-water inlet pipe, 5-pump turbine, 6-generator motor, 7-main shaft, 8-runner chamber, 9-draft pipe, 10-lower warehouse, 11-reversible unit auxiliary equipment, 12-reversible unit speed regulator system, 13-reversible electric and control system, 14-upper warehouse new dam and 15-lower warehouse dam.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings.
The pumped storage power generation system is formed by reconstructing a raw water power station under the condition that the layout of the raw water power station is not changed, one part of the engineering and the equipment of the reconstructed pumped storage power generation system comes from the original engineering and the equipment of the raw water power station, and the other part of the engineering and the equipment of the raw water power station comes from the engineering and the equipment of the modified or reconstructed raw water power station; the system can generate electricity by using the water energy of the upper reservoir 1 in function, and can also pump the water in the lower reservoir 10 into the upper reservoir 1 for energy storage by using the electric energy of a power grid, so that the unidirectional power generation function of a hydropower station is converted into the energy storage and power generation bidirectional function of water pumping and energy storage power generation;
the upper reservoir 1 is communicated with a water flow inlet of a water inlet pipe 4, a water flow outlet of the water inlet pipe 4 is communicated with a water flow inlet of a pump turbine 5, a water flow outlet of the pump turbine runner 5 is communicated with a water flow inlet of a draft tube 9, a water flow outlet of the draft tube 9 is communicated with a lower reservoir 10 to form a water flow channel of engineering and equipment, and water flows through the water flow channel formed by the upper reservoir 1, the water inlet pipe 4, the pump turbine 5, the draft tube 9 and the lower reservoir 10, so that the water can flow in the forward direction and the reverse direction, and a bidirectional conversion structure between mechanical energy and water energy is formed; the pump turbine 5 is connected with the generator motor 6 through the main shaft 7 to form a mechanical rotating part of a pumped storage power generation system of the reversible water turbine generator set, so that bidirectional conversion between mechanical energy and electric energy is realized; the reversible type unit auxiliary equipment 11 is connected with the reversible type hydroelectric generating set to form an auxiliary function system required by the bidirectional operation of the reversible type hydroelectric generating set; the reversible unit speed regulator system 12 is connected with the reversible hydroelectric generating set to form a speed regulating and controlling system required by the bidirectional operation of the reversible hydroelectric generating set; one end of the reversible electrical and control system 13 is connected with the reversible water turbine generator set to realize excitation, regulation and control required by the bidirectional operation of the reversible water turbine generator set, and the other end of the reversible electrical and control system 13 is connected with a power grid to form an electric energy transmission channel between the pumped storage power generation system and the power grid.
In order to ensure better implementation effect, the pump turbine 5 is one of a mixed flow reversible turbine, an axial flow reversible turbine, an oblique flow reversible turbine or a through flow reversible turbine.
The dam 2, the factory building 3, the water inlet pipe 4, the runner chamber 8 and the tail water pipe 9 directly utilize projects and equipment of a raw water power station for a pumped storage power generation system, namely directly utilize original equipment.
The system comprises an upper storage 1, a water pump turbine 5, a generator motor 6, a main shaft 7, a lower storage 10, reversible unit auxiliary equipment 11, a reversible unit speed regulator system 12 and a reversible electric and control system 13, wherein the engineering and equipment obtained by modifying or reconstructing corresponding engineering and equipment of a raw water power station for a pumped storage power generation system.
The upper reservoir 1 is formed by additionally building an upper reservoir new dam 14 at the upstream of a reservoir dam 2 of a raw water power station; the pump water turbine 5 is formed by reconstructing an original power generation water turbine, the size of the axial surface of the pump water turbine 5 is the same as that of the axial surface of an original power generation water turbine runner, other components of the pump water turbine 5 adopt water turbine components of a raw water power station, and the arrangement position and the type of the pump water turbine 5 are the same as those of a hydraulic turbine set of the raw water power station; the generating motor 6 is formed by reconstructing a hydraulic generator of a raw water power station, the size of the axial surface of the generating motor 6 is the same as that of the axial surface of the raw water wheel generator, and the arrangement position and the type of the generating motor 6 are the same as those of the raw water wheel generator set.
The main shaft 7 is redesigned and manufactured by a main shaft of a hydroelectric generating set of a raw water power station, the length of the main shaft 7 is the same as that of the main shaft of the raw water power station, and the arrangement position and the type of the main shaft 7 are the same as those of the raw water turbine generating set.
The lower reservoir 10 is formed by additionally building a lower reservoir dam 15 at the downstream of a tail canal of a raw water power station.
The reversible unit auxiliary equipment 11 is formed by transforming unit auxiliary equipment of a raw water power station, and the arrangement position and the type of the reversible unit auxiliary equipment 11 are the same as those of the raw water power station.
The reversible unit speed regulator system 12 is formed by transforming a hydro-generator speed regulating system of a raw water power station, and the arrangement position and the type of the reversible unit speed regulator system 12 are the same as those of the raw water power station.
The reversible electric and control system 13 is formed by reconstructing an electric and control system of a raw water power station, and is an electric energy transmission channel between a pumped storage power generation system and a power grid.
In order to reduce construction cost height, shorten construction cycle, pumped storage power generation system be under the condition that does not change conventional hydropower station overall arrangement, form by conventional hydropower station reconstruction, the novel pumped storage power generation system's that reforms transform engineering and equipment partly derive from original engineering and the equipment of former conventional hydropower station, another part derives from engineering and the equipment of former conventional hydropower station after transformation or reconstruction. The improved pumped storage power generation system can generate power by using the water energy of the upper reservoir 1 in function, and can also pump the water in the lower reservoir 10 into the upper reservoir 1 for energy storage by using the electric energy of a power grid, so that the one-way power generation function of the original conventional hydropower station is converted into the two-way functions of energy storage and power generation of the pumped storage power generation system.
The utility model discloses when specifically using, operating condition and process have two kinds: one is a power generation working condition, and the other is a pumped storage working condition.
(1) The power generation working condition is a process of converting water flow potential energy into electric energy. The specific working process of the power generation working condition is as follows: water flows into the water inlet pipe 4 from the upper reservoir 1, then flows into the pump turbine 5 from the water inlet pipe 4, then flows into the draft tube 9 from the pump turbine 5, and finally flows into the lower reservoir 10 through the draft tube 9. In the process, the water flow drives the pump turbine 5 to rotate by utilizing water energy; the hydraulic energy is converted into the rotary mechanical energy of a pump turbine 5 (at the moment, the pump turbine is used as a water turbine), the pump turbine 5 drives a generator motor 6 (at the moment, the generator motor is used as a generator) connected by a main shaft 7 to generate electricity, and therefore the pumped storage power generation system converts the rotary mechanical energy of the pump turbine 5 into electric energy; the electrical energy is then fed to the grid through the reversible electrical and control system 13 for use by the user.
(2) The water pumping working condition is a process of converting electric energy into water flow potential energy and storing the water flow potential energy. The concrete working process of the water pumping working condition is as follows: the electric energy of electric power grid is utilized through reversible electricity and control system 13 to generating motor 6 (generating motor uses as the generator this moment), the pump turbine 5 that drive main shaft 7 is connected (the pump turbine uses as the water pump this moment), thereby convert the electric energy of electric power grid into the rotating mechanical energy of pump turbine 5, and simultaneously, pump turbine 5 is with rivers suction draft 9 in the lower storehouse 10, rivers flow into pump turbine 5 from draft 9 again, then flow into inlet tube 4 from pump turbine 5, flow into upper storehouse 1 from inlet tube 4 at last, thereby realize that pump turbine 5 converts the rotating mechanical energy of self into hydroenergy, the realization is converted into hydroenergy and is stored the electric energy.
It should be noted that the reversible unit auxiliary equipment 11, the reversible unit governor system 12 and the reversible electrical and control system 13 are all known and commercially available products.
The utility model discloses simple structure, the modern design is unique, the engineering and the equipment resource of former hydropower station have been utilized, most engineering and equipment investment have been saved, can effectively solve the problem of former hydropower station's hydroenergy resource reuse, and former pumped storage power station construction cycle is long, the problem that construction cost is high, construction cost practices thrift about 70%, construction cycle saves about 60%, be the innovation in the construction of pumped storage power station, the pumped storage power station transformation for conventional hydropower station provides technical support, social, economic benefits and energy-concerving and environment-protective benefit are showing.
Claims (3)
1. A pumped storage power generation system comprises an upper reservoir (1), a dam (2), a factory building (3), a water inlet pipe (4), a pump turbine (5), a power generation motor (6), a main shaft (7), a runner chamber (8), a draft tube (9), a lower reservoir (10), reversible unit auxiliary equipment (11), a reversible unit speed regulator system (12), a reversible electric and control system (13), an upper reservoir new dam (14) and a lower reservoir dam (15), it is characterized in that the pumped storage power generation system is reconstructed from a raw water power station under the condition of not changing the layout of the raw water power station, the system can utilize the water energy of the upper reservoir (1) to generate electricity, can also utilize the electric energy of a power grid to pump the water of the lower reservoir (10) into the upper reservoir (1) to store energy, and transforms a single-function system of a raw water power station, which can only generate electricity, into a double-function system which can generate electricity and store energy;
the upper reservoir (1) is communicated with a water flow inlet of the water inlet pipe (4), a water flow outlet of the water inlet pipe (4) is communicated with a water flow inlet of the water pump turbine (5), a water flow outlet of the water pump turbine (5) is communicated with a water flow inlet of the draft pipe (9), a water flow outlet of the draft pipe (9) is communicated with the lower reservoir (10) to form a water flow channel of engineering and equipment, and water can flow forwards and backwards through the water flow channel formed by the upper reservoir (1), the water inlet pipe (4), the water pump turbine (5), the draft pipe (9) and the lower reservoir (10) to form a bidirectional conversion structure between mechanical energy and water energy; the water pump turbine (5) is connected with the generating motor (6) through the main shaft (7) to form a mechanical rotating part of a pumped storage generating system of the reversible water turbine generator set, so that bidirectional conversion between mechanical energy and electric energy is realized; the reversible unit auxiliary equipment (11) is connected with the reversible hydroelectric generating set to form an auxiliary function system required by the bidirectional operation of the reversible hydroelectric generating set; the reversible unit speed regulator system (12) is connected with the reversible hydroelectric generating set to form a speed regulating and controlling system required by the bidirectional operation of the reversible hydroelectric generating set; one end of the reversible electrical and control system (13) is connected with the reversible water turbine generator set to realize excitation, adjustment and control required by the bidirectional operation of the reversible water turbine generator set, and the other end of the reversible electrical and control system (13) is connected with a power grid to form an electric energy transmission channel between the pumped storage power generation system and the power grid.
2. The pumped-hydro energy storage power generation system of claim 1, wherein the pump turbine (5) is one of a francis turbine, an axial flow francis turbine, a diagonal flow francis turbine or a through-flow francis turbine.
3. The pumped storage power generation system according to claim 1, wherein the dam (2), the factory building (3), the water inlet pipe (4), the runner chamber (8) and the tail water pipe (9) are used for directly utilizing projects and equipment of a raw water power station, namely directly utilized original equipment, for the pumped storage power generation system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120234085.5U CN215170505U (en) | 2021-01-28 | 2021-01-28 | Pumped storage power generation system |
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| CN202120234085.5U CN215170505U (en) | 2021-01-28 | 2021-01-28 | Pumped storage power generation system |
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| CN215170505U true CN215170505U (en) | 2021-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523918A (en) * | 2021-01-28 | 2021-03-19 | 华北水利水电大学 | Pumped storage power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112523918A (en) * | 2021-01-28 | 2021-03-19 | 华北水利水电大学 | Pumped storage power generation system |
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