CN105822486A - Energy storage system and power station - Google Patents
Energy storage system and power station Download PDFInfo
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- CN105822486A CN105822486A CN201610341820.6A CN201610341820A CN105822486A CN 105822486 A CN105822486 A CN 105822486A CN 201610341820 A CN201610341820 A CN 201610341820A CN 105822486 A CN105822486 A CN 105822486A
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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
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Abstract
The invention discloses an energy storage system which comprises a pressurizing device, an energy storage unit, a pressure energy converting unit and a first power generation device. When energy is stored, mechanical energy is converted into liquid pressure energy through the pressurizing device and the liquid pressure energy is stored in the energy storage unit; when the energy is released, the liquid pressure energy is converted into the mechanical energy through the pressure energy converting unit, and further a dynamo is driven to work. Compared with the existing energy storage manner, the energy storage system has the prominent advantages of being high in energy conversion efficiency, low in cost, environment friendly, free of pollution and the like. On the strength of the energy storage system, the invention provides a power station with the energy storage system.
Description
Technical field
The present invention relates to Technology of Electrical Power Generation, be specifically related to a kind of energy storage system and power plant.
Background technology
For a long time, for meeting ever-increasing electrical load requirements, power construction department has to require to build all kinds of power generating equipments according to peak load.Large scale construction power generating equipment constantly, power construction department brings great difficulty, and during electricity consumption ebb, electric energy produced by these power generating equipments far surpasses actual demand, result in huge waste.
In order to reduce waste, generally being stored by unnecessary electric energy, common energy storage mode has batteries to store energy, draw water energy storage and water electrolysis hydrogen production three kinds；But these three energy storage mode all exists major defect, specific as follows:
1) batteries to store energy is that the chemical reaction by internal storage battery converts electrical energy into chemical energy and stores, but, the discharge and recharge number of times of accumulator is limited, service life is shorter, and operation and maintenance cost is high.
2) energy storage of drawing water is to be evacuated in the cistern of higher position by the water of lower position by water pump, convert electrical energy into the potential energy storage of water, this energy storage mode needs at the difference in height cistern that more significantly position construction scale is bigger near water, and when releasing energy, needing to rely on hydro-electric power generating equipment could be electric energy by the potential energy of water；Therefore, energy storage of drawing water is higher to place and equipment requirements, and investment and construction period are long, are limited substantially by geographical conditions.
3) water electrolysis hydrogen production is to split water into hydrogen and oxygen by electric energy, converts electrical energy into chemical energy and is stored in hydrogen, and when releasing energy, hydrogen burns in steam power plant and then chemical energy is changed into electric energy；Owing to hydrogen is a kind of flammable explosive gas, the condition of storage of hydrogen is harsher, and therefore, construction and the maintenance cost of storage facility are higher.
To sum up, for power generation field, how to ensure storage and release processing efficient, safety and the low cost of electric energy, remain a thorny technical problem of comparison.
Summary of the invention
In view of this, the present invention proposes a kind of new energy storage system, utilizes storage that this energy storage system can be efficient, safe and releases energy, and builds and use process cost cheap.On this basis, the present invention proposes a kind of power plant with this energy storage system.
As first aspect, the present invention proposes a kind of energy storage system, specifically includes pressurizer, energy-storage units, pressure energy converting unit and the first TRT, and described energy-storage units is provided with cavity volume, and described cavity volume is built with gas；Described pressurizer is connected with cavity volume, for by fluid pressurization input extremely described cavity volume；
Described pressure energy converting unit includes driving cylinder and movement transforming device；One end of described driving cylinder is connected with the liquid outlet of cavity volume, and the other end is connected with movement transforming device, for the pressure energy of liquid is converted into linear motion；Described movement transforming device and the first TRT are connected, and for linear motion is converted into rotary motion, and then drive described first TRT work.
Preferably, described movement transforming device includes that pressurized cylinder and hydraulic motor, the piston of described driving cylinder are connected by connecting rod with the piston of pressurized cylinder；Described pressurized cylinder is connected with hydraulic motor, is supplied to hydraulic motor, described hydraulic motor and the first TRT and is in transmission connection after being pressurizeed by hydraulic oil.
Preferably, described energy storage system includes multiple described driving cylinder and multiple described pressurized cylinder, and described driving cylinder mates formation supercharging group one by one with pressurized cylinder, and multiple described supercharging groups provide hydraulic oil to hydraulic motor.
Preferably, described energy storage system includes two described driving cylinders and two described pressurized cylinders, and described driving cylinder mates formation the first supercharging group one by one with pressurized cylinder and the second supercharging group, described first supercharging group and the second supercharging group alternately provide hydraulic oil to hydraulic motor.
Preferably, described energy storage system also includes the first valve group, the second valve group and storage pool, and described driving cylinder, pressurized cylinder all include rodless cavity；
In the first state, the rodless cavity of driving cylinder of the first supercharging group is connected by described first valve group with the liquid outlet of cavity volume, and is connected with storage pool by the rodless cavity of the driving cylinder of the second supercharging group；Meanwhile, the rodless cavity of pressurized cylinder of the first supercharging group is connected by described second valve group with the oil-in of hydraulic motor, and is connected with the oil return opening of hydraulic motor by the rodless cavity of pressurized cylinder of the second supercharging group；
In the second condition, the rodless cavity of driving cylinder of the second supercharging group is connected by described first valve group with the liquid outlet of cavity volume, and is connected with storage pool by the rodless cavity of the driving cylinder of the first supercharging group；Meanwhile, the rodless cavity of pressurized cylinder of the second supercharging group is connected by described second valve group with the oil-in of hydraulic motor, is connected with the oil return opening of hydraulic motor by the rodless cavity of pressurized cylinder of the first supercharging group.
Preferably, described energy storage system also includes the first valve group and storage pool, and described driving cylinder is provided with rod chamber and rodless cavity, and the rod chamber of two described driving cylinders is interconnected；
In the first state, the rodless cavity of driving cylinder of the first supercharging group is connected by described first valve group with the liquid outlet of cavity volume, and is connected with storage pool by the rodless cavity of the driving cylinder of the second supercharging group；
In the second condition, the rodless cavity of driving cylinder of the second supercharging group is connected by described first valve group with the liquid outlet of cavity volume, and is connected with storage pool by the rodless cavity of the driving cylinder of the first supercharging group.
Preferably, described energy storage system also includes the second valve group, and described pressurized cylinder is provided with rodless cavity；
In the first state, the rodless cavity of pressurized cylinder of the first supercharging group is connected by described second valve group with the oil-in of hydraulic motor, and is connected with the oil return opening of hydraulic motor by the rodless cavity of pressurized cylinder of the second supercharging group；
In the second condition, the rodless cavity of pressurized cylinder of the second supercharging group is connected by described second valve group with the oil-in of hydraulic motor, and is connected with the oil return opening of hydraulic motor by the rodless cavity of pressurized cylinder of the first supercharging group.
Preferably, described energy storage system also includes the second valve group and hydraulic oil container, and described pressurized cylinder is provided with rodless cavity, and the oil return opening of described hydraulic motor connects with hydraulic oil container；
In the first state, the rodless cavity of pressurized cylinder of the first supercharging group is connected by described second valve group with the oil-in of hydraulic motor, and is connected with hydraulic oil container by the rodless cavity of the pressurized cylinder of the second supercharging group；
In the second condition, the rodless cavity of pressurized cylinder of the second supercharging group is connected by described second valve group with the oil-in of hydraulic motor, and is connected with hydraulic oil container by the rodless cavity of the pressurized cylinder of the first supercharging group.
Preferably, described movement transforming device is provided with bent axle, described bent axle and the first TRT and is in transmission connection；Multiple described driving cylinders are connected with bent axle, are used for ordering about bent axle and rotate.
Preferably, the phase angle between multiple described driving cylinders is uniformly distributed.
Preferably, described cavity volume includes that gas storage chamber and liquid storage cavity, described pressurizer are connected with liquid storage cavity, and described liquid outlet is arranged on liquid storage cavity.
Preferably, described liquid is water.
Preferably, described pressurizer is centrifugal pump or plunger displacement pump.
The present invention also proposes another kind of energy storage system, specifically includes pressurizer, energy-storage units, pressure energy converting unit and the first TRT, and described energy-storage units is provided with cavity volume, and described cavity volume is built with gas；Described pressurizer is connected with cavity volume, for by fluid pressurization input extremely described cavity volume；Described liquid is hydraulic oil, and described pressure energy converting unit is hydraulic motor, and the oil-in of described hydraulic motor is connected with the liquid outlet of cavity volume, and the rotating shaft of described hydraulic motor is connected with the first TRT, is used for driving described first TRT work.
As second aspect, the present invention proposes a kind of power plant, and including the second TRT, motor and the energy storage system of above-mentioned any one, described second TRT electrically connects with motor, and described motor is in transmission connection with pressurizer.
The energy storage system that the present invention proposes includes pressurizer, energy-storage units, pressure energy converting unit and the first TRT；When storing energy, the pressure energy being converted mechanical energy into liquid by pressurizer is stored in energy-storage units, and when releasing energy, the pressure energy of liquid is converted into mechanical energy by pressure energy converting unit, and then drives generator operation.Compared with existing energy storage mode, the present invention has that energy conversion efficiency is high, with low cost, environmental protection, the outstanding advantages such as pollution-free.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
The fundamental diagram in the power plant that Fig. 1 provides for the specific embodiment of the invention；
One of fundamental diagram of pressure energy converting unit that Fig. 2 provides for the specific embodiment of the invention；
The two of the fundamental diagram of the pressure energy converting unit that Fig. 3 provides for the specific embodiment of the invention；
The structural representation of a kind of movement transforming device that Fig. 4 provides for the specific embodiment of the invention.
Description of reference numerals:
1 pressurizer 2 energy-storage units 3 pressure energy converting unit 4 first TRT
5 storage pool 6 second TRT 7 motor 21 gas storage chambers
22 liquid storage cavity 31 driving cylinder 32 movement transforming device 33 first valve groups
34 second valve group 321 pressurized cylinder 322 hydraulic motor 323 bent axles
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in Figure 1, the specific embodiment of the invention proposes a kind of power plant, this power plant specifically includes the second TRT 6, motor 7 and energy storage system, energy storage system specifically includes pressurizer 1 (can be specifically centrifugal pump or plunger displacement pump), energy-storage units 2, pressure energy converting unit the 3, first TRT 4 and storage pool 5, second TRT 6 electrically connects with motor 7, and motor 7 is in transmission connection with pressurizer 1；Energy-storage units 2 is provided with gas storage chamber 21 and liquid storage cavity 22, and gas storage chamber 21 is built with gas；Pressurizer 1 is connected with liquid storage cavity 22, is used for fluid pressurization and inputs to liquid storage cavity 22；Pressure energy converting unit 3 includes driving cylinder 31 and movement transforming device 32, and one end of driving cylinder 31 is connected with liquid storage cavity 22, and the other end is connected with movement transforming device 32, for the pressure energy of liquid is converted into linear motion；Movement transforming device 32 is connected with the first TRT 4, for linear motion is converted into rotary motion, and then drives the first TRT 4 to work.Wherein, movement transforming device 32 includes pressurized cylinder 321 and hydraulic motor 322, and the piston of driving cylinder 31 is connected by connecting rod with the piston of pressurized cylinder 321；Pressurized cylinder 321 is connected with hydraulic motor 322, is supplied to hydraulic motor 322 after being pressurizeed by hydraulic oil, and hydraulic motor 322 is in transmission connection with the first TRT 4.
When storing energy, the electric energy that second TRT 6 provides orders about motor 7 and rotates, and then drive pressurizer 1 to work, pressurizer 1 is delivered to energy-storage units 2 by after the liquid pressing in storage pool 5, along with in energy-storage units 2, the volume of liquid increases, pressure in energy-storage units 2 increases the most therewith, and correspondingly, its energy stored is the most.When releasing energy, highly pressurised liquid orders about driving cylinder 31 reciprocating action, and driving cylinder 31 drives pressurized cylinder 321 to move back and forth, pressurized cylinder 321 is supplied to hydraulic motor 322 after being pressurizeed by hydraulic oil, ordering about hydraulic motor 322 to work, finally, hydraulic motor 322 drives the first TRT 4 to work.
In the above-described embodiments, the quantity of driving cylinder 31 and pressurized cylinder 321 can be arranged as required, and driving cylinder 31 mates formation supercharging group one by one with pressurized cylinder 321, and multiple supercharging groups provide hydraulic oil to together hydraulic motor 322.
In preferably embodiment, the quantity of driving cylinder 31 and pressurized cylinder 321 is two, and driving cylinder 31 mates formation the first supercharging group one by one with pressurized cylinder 321 and the second supercharging group, the first supercharging group and the second supercharging group alternately provide hydraulic oil to hydraulic motor 322；In order to control work process, energy storage system is also configured with corresponding control valve, implements form at least following four:
1) as in figure 2 it is shown, driving cylinder 31 and pressurized cylinder 321 are the most all single-acting cylinder (being i.e. provided only with rodless cavity, be not provided with bar chamber), energy storage system is also configured with the first valve group 33 and the second valve group 34.In the first state, the rodless cavity of the driving cylinder 31 of the first supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the second supercharging group；Meanwhile, the rodless cavity of the pressurized cylinder 321 of the first supercharging group is connected by the second valve group 34 with the oil-in of hydraulic motor 322, and is connected with the oil return opening of hydraulic motor 322 by the rodless cavity of pressurized cylinder 321 of the second supercharging group.In the second condition, the rodless cavity of the driving cylinder 31 of the second supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the first supercharging group；Meanwhile, the rodless cavity of the pressurized cylinder 321 of the second supercharging group is connected by the second valve group 34 with the oil-in of hydraulic motor 322, is connected with the oil return opening of hydraulic motor 322 by the rodless cavity of pressurized cylinder 321 of the first supercharging group.
2) as it is shown on figure 3, driving cylinder 31 is double acting cylinder (being i.e. provided with rod chamber and rodless cavity), the rod chamber of two driving cylinders 31 is interconnected, and energy storage system is configured with the first valve group 33；In the first state, the rodless cavity of the driving cylinder 31 of the first supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the second supercharging group.In the second condition, the rodless cavity of the driving cylinder 31 of the second supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the first supercharging group.
3) driving cylinder 31 is double acting cylinder (being i.e. provided with rod chamber and rodless cavity), and pressurized cylinder 321 is single-acting cylinder, and energy storage system is configured with the first valve group 33 and the second valve group 34；In the first state, the rodless cavity of the driving cylinder 31 of the first supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the second supercharging group；Meanwhile, the rodless cavity of the pressurized cylinder 321 of the first supercharging group is connected by the second valve group 34 with the oil-in of hydraulic motor 322, and is connected with the oil return opening of hydraulic motor 322 by the rodless cavity of pressurized cylinder 321 of the second supercharging group.In the second condition, the rodless cavity of the driving cylinder 31 of the second supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the first supercharging group；Meanwhile, the rodless cavity of the pressurized cylinder 321 of the second supercharging group is connected by the second valve group 34 with the oil-in of hydraulic motor 322, and is connected with the oil return opening of hydraulic motor 322 by the rodless cavity of pressurized cylinder 321 of the first supercharging group.
4) driving cylinder 31 is double acting cylinder, and pressurized cylinder 321 is single-acting cylinder, and energy storage system is configured with first valve group the 33, second valve group 34 and hydraulic oil container, and the oil return opening of hydraulic motor 322 connects with hydraulic oil container.In the first state, the rodless cavity of the driving cylinder 31 of the first supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the second supercharging group；Meanwhile, the rodless cavity of the pressurized cylinder 321 of the first supercharging group is connected by the second valve group 34 with the oil-in of hydraulic motor 322, and is connected with hydraulic oil container by the rodless cavity of the pressurized cylinder 321 of the second supercharging group.In the second condition, the rodless cavity of the driving cylinder 31 of the second supercharging group is connected by the first valve group 33 with liquid storage cavity 22, and is connected with storage pool 5 by the rodless cavity of the driving cylinder 31 of the first supercharging group；Meanwhile, the rodless cavity of the pressurized cylinder 321 of the second supercharging group is connected by the second valve group 34 with the oil-in of hydraulic motor 322, and is connected with hydraulic oil container by the rodless cavity of the pressurized cylinder 321 of the first supercharging group.
In other embodiments, movement transforming device 32 is bent axle 323, as shown in Figure 4, multiple crank throw it is provided with on bent axle 323, each crank throw and a driving cylinder 31 are hinged, and the phase angle between multiple driving cylinders 31 is uniformly distributed, and outfan and first TRT 4 of bent axle 323 are in transmission connection；Obviously, directly the linear motion of driving cylinder 31 can be converted to rotary motion by bent axle 323.
In the above-described embodiments, preferentially adopt the liquid using water as energy storage, to reduce cost.
In other embodiments, hydraulic oil can be used as the liquid of energy storage, accordingly, use hydraulic motor 322 as pressure energy converting unit 3, the oil-in of hydraulic motor 322 is connected with the liquid outlet of cavity volume, the rotating shaft of hydraulic motor 322 is connected with the first TRT 4, is used for driving described first TRT 4 to work.Compared with above-described embodiment, use hydraulic motor 322 directly the pressure energy of liquid to be converted to mechanical energy, greatly simplify system structure.
Compared with existing energy storage mode, the present invention improves energy conversion efficiency by the energy storage system of special construction, and has the advantages such as with low cost, safe and environment-friendly.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (15)
1. an energy storage system, it is characterized in that, including pressurizer (1), energy-storage units, pressure energy converting unit (3) and the first TRT (4), described energy-storage units is provided with cavity volume, and described cavity volume is built with gas；Described pressurizer (1) is connected with cavity volume, for by fluid pressurization input extremely described cavity volume；
Described pressure energy converting unit (3) includes driving cylinder (31) and movement transforming device (32)；One end of described driving cylinder (31) is connected with the liquid outlet of cavity volume, and the other end is connected with movement transforming device (32), for the pressure energy of liquid is converted into linear motion；Described movement transforming device (32) is connected with the first TRT (4), for linear motion is converted into rotary motion, and then drives described first TRT (4) to work.
Energy storage system the most according to claim 1, it is characterized in that, described movement transforming device (32) includes pressurized cylinder (321) and hydraulic motor (322), and the piston of described driving cylinder (31) is connected by connecting rod with the piston of pressurized cylinder (321)；Described pressurized cylinder (321) is connected with hydraulic motor (322), being supplied to hydraulic motor (322) after being pressurizeed by hydraulic oil, described hydraulic motor (322) is in transmission connection with the first TRT (4).
Energy storage system the most according to claim 2, it is characterized in that, including multiple described driving cylinders (31) and multiple described pressurized cylinder (321), and described driving cylinder (31) mates formation supercharging group one by one with pressurized cylinder (321), multiple described supercharging groups provide hydraulic oil to hydraulic motor (322).
Energy storage system the most according to claim 2, it is characterized in that, including two described driving cylinders (31) and two described pressurized cylinders (321), and described driving cylinder (31) mates formation the first supercharging group one by one with pressurized cylinder (321) and the second supercharging group, described first supercharging group and the second supercharging group alternately provide hydraulic oil to hydraulic motor (322).
Energy storage system the most according to claim 4, it is characterized in that, also including the first valve group (33), the second valve group (34) and storage pool (5), described driving cylinder (31), pressurized cylinder (321) all include rodless cavity；
In the first state, the rodless cavity of the driving cylinder (31) of the first supercharging group is connected by described first valve group (33) with the liquid outlet of cavity volume, and is connected with storage pool (5) by the rodless cavity of the driving cylinder (31) of the second supercharging group；Simultaneously, the rodless cavity of the pressurized cylinder (321) of the first supercharging group is connected by described second valve group (34) with the oil-in of hydraulic motor (322), and is connected with the oil return opening of hydraulic motor (322) by the rodless cavity of the pressurized cylinder (321) of the second supercharging group；
In the second condition, the rodless cavity of the driving cylinder (31) of the second supercharging group is connected by described first valve group (33) with the liquid outlet of cavity volume, and is connected with storage pool (5) by the rodless cavity of the driving cylinder (31) of the first supercharging group；Simultaneously, the rodless cavity of the pressurized cylinder (321) of the second supercharging group is connected by described second valve group (34) with the oil-in of hydraulic motor (322), is connected with the oil return opening of hydraulic motor (322) by the rodless cavity of the pressurized cylinder (321) of the first supercharging group.
Energy storage system the most according to claim 4, it is characterized in that, also include the first valve group (33) and storage pool (5), described driving cylinder (31) is provided with rod chamber and rodless cavity, and the rod chamber of two described driving cylinders (31) is interconnected；
In the first state, the rodless cavity of the driving cylinder (31) of the first supercharging group is connected by described first valve group (33) with the liquid outlet of cavity volume, and is connected with storage pool (5) by the rodless cavity of the driving cylinder (31) of the second supercharging group；
In the second condition, the rodless cavity of the driving cylinder (31) of the second supercharging group is connected by described first valve group (33) with the liquid outlet of cavity volume, and is connected with storage pool (5) by the rodless cavity of the driving cylinder (31) of the first supercharging group.
Energy storage system the most according to claim 6, it is characterised in that also include the second valve group (34), and described pressurized cylinder (321) is provided with rodless cavity；
In the first state, the rodless cavity of the pressurized cylinder (321) of the first supercharging group is connected by described second valve group (34) with the oil-in of hydraulic motor (322), and is connected with the oil return opening of hydraulic motor (322) by the rodless cavity of the pressurized cylinder (321) of the second supercharging group；
In the second condition, the rodless cavity of the pressurized cylinder (321) of the second supercharging group is connected by described second valve group (34) with the oil-in of hydraulic motor (322), and is connected with the oil return opening of hydraulic motor (322) by the rodless cavity of the pressurized cylinder (321) of the first supercharging group.
Energy storage system the most according to claim 6, it is characterized in that, also including the second valve group (34) and hydraulic oil container, described pressurized cylinder (321) is provided with rodless cavity, and the oil return opening of described hydraulic motor (322) connects with hydraulic oil container；
In the first state, the rodless cavity of the pressurized cylinder (321) of the first supercharging group is connected by described second valve group (34) with the oil-in of hydraulic motor (322), and is connected with hydraulic oil container by the rodless cavity of the pressurized cylinder (321) of the second supercharging group；
In the second condition, the rodless cavity of the pressurized cylinder (321) of the second supercharging group is connected by described second valve group (34) with the oil-in of hydraulic motor (322), and is connected with hydraulic oil container by the rodless cavity of the pressurized cylinder (321) of the first supercharging group.
Energy storage system the most according to claim 1, it is characterised in that described movement transforming device (32) is provided with bent axle (323), described bent axle (323) is in transmission connection with the first TRT (4)；Multiple described driving cylinders (31) are connected with bent axle (323), are used for ordering about bent axle (323) and rotate.
Energy storage system the most according to claim 9, it is characterised in that the phase angle between multiple described driving cylinders (31) is uniformly distributed.
11. according to the energy storage system described in claim 1 to 10 any one, it is characterized in that, described cavity volume includes gas storage chamber (21) and liquid storage cavity (22), described pressurizer (1) is connected with liquid storage cavity (22), and described liquid outlet is arranged on liquid storage cavity (22).
12. according to the energy storage system described in claim 1 to 10 any one, it is characterised in that described liquid is water.
13. according to the energy storage system described in claim 1 to 10 any one, it is characterised in that described pressurizer (1) is centrifugal pump or plunger displacement pump.
14. 1 kinds of energy storage systems, it is characterized in that, including pressurizer (1), energy-storage units, pressure energy converting unit (3) and the first TRT (4), described energy-storage units is provided with cavity volume, and described cavity volume is built with gas；Described pressurizer (1) is connected with cavity volume, for by fluid pressurization input extremely described cavity volume；
Described liquid is hydraulic oil, described pressure energy converting unit (3) is hydraulic motor, the oil-in of described hydraulic motor is connected with the liquid outlet of cavity volume, the rotating shaft of described hydraulic motor is connected with the first TRT (4), is used for driving described first TRT (4) to work.
15. 1 kinds of power plants, it is characterized in that, including the second TRT (6), motor (7) and the energy storage system described in claim 1 to 14 any one, described second TRT (6) electrically connects with motor (7), and described motor (7) is in transmission connection with pressurizer (1).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513254A (en) * | 2019-09-09 | 2019-11-29 | 上海交通大学 | Energy storage device suitable for energy conversion |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263160A (en) * | 2006-03-27 | 2007-10-11 | Kayaba Ind Co Ltd | Energy conversion device |
| CN101718145A (en) * | 2009-12-11 | 2010-06-02 | 三一重工股份有限公司 | Energy recovery vibration attenuating system for cantilever frame as well as energy recovery method and vibration attenuating method for cantilever frame |
| CN102245906A (en) * | 2008-10-10 | 2011-11-16 | 诺海卓有限公司 | Digital hydraulic system |
| CN102705145A (en) * | 2012-06-01 | 2012-10-03 | 国家海洋技术中心 | Wave energy generating system adaptive to wavelet power generation |
| DE102011108253A1 (en) * | 2011-07-22 | 2013-01-24 | Rheinisch-Westfälische Technische Hochschule Aachen | Method for recovering energy from hydraulic system using hydraulic load, involves switching working chambers in optional manner, particularly by switchable proportional valve to carry out loading and unloading operations in pressure source |
| CN103465897A (en) * | 2012-06-06 | 2013-12-25 | 波克兰液压工业设备公司 | Apparatus for recovering energy |
| CN103615443A (en) * | 2013-12-03 | 2014-03-05 | 三一汽车制造有限公司 | Energy recovery hydraulic system and engineering machine |
| CN104929856A (en) * | 2015-04-23 | 2015-09-23 | 中国科学院广州能源研究所 | Wave energy conversion system with energy storage link capable of operating automatically |
| CN205001295U (en) * | 2015-08-11 | 2016-01-27 | 莆田市熙尧科技有限公司 | Energy preserves device |
-
2016
- 2016-05-20 CN CN201610341820.6A patent/CN105822486B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263160A (en) * | 2006-03-27 | 2007-10-11 | Kayaba Ind Co Ltd | Energy conversion device |
| CN102245906A (en) * | 2008-10-10 | 2011-11-16 | 诺海卓有限公司 | Digital hydraulic system |
| CN101718145A (en) * | 2009-12-11 | 2010-06-02 | 三一重工股份有限公司 | Energy recovery vibration attenuating system for cantilever frame as well as energy recovery method and vibration attenuating method for cantilever frame |
| DE102011108253A1 (en) * | 2011-07-22 | 2013-01-24 | Rheinisch-Westfälische Technische Hochschule Aachen | Method for recovering energy from hydraulic system using hydraulic load, involves switching working chambers in optional manner, particularly by switchable proportional valve to carry out loading and unloading operations in pressure source |
| CN102705145A (en) * | 2012-06-01 | 2012-10-03 | 国家海洋技术中心 | Wave energy generating system adaptive to wavelet power generation |
| CN103465897A (en) * | 2012-06-06 | 2013-12-25 | 波克兰液压工业设备公司 | Apparatus for recovering energy |
| CN103615443A (en) * | 2013-12-03 | 2014-03-05 | 三一汽车制造有限公司 | Energy recovery hydraulic system and engineering machine |
| CN104929856A (en) * | 2015-04-23 | 2015-09-23 | 中国科学院广州能源研究所 | Wave energy conversion system with energy storage link capable of operating automatically |
| CN205001295U (en) * | 2015-08-11 | 2016-01-27 | 莆田市熙尧科技有限公司 | Energy preserves device |
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| CN110513254A (en) * | 2019-09-09 | 2019-11-29 | 上海交通大学 | Energy storage device suitable for energy conversion |
| CN110513254B (en) * | 2019-09-09 | 2024-03-12 | 上海交通大学 | Energy storage device suitable for energy conversion |
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Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |