CN113315245A - Energy storage system - Google Patents
Energy storage system Download PDFInfo
- Publication number
- CN113315245A CN113315245A CN202110632412.7A CN202110632412A CN113315245A CN 113315245 A CN113315245 A CN 113315245A CN 202110632412 A CN202110632412 A CN 202110632412A CN 113315245 A CN113315245 A CN 113315245A
- Authority
- CN
- China
- Prior art keywords
- water tank
- fresh water
- energy storage
- tank
- brine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/003—Systems for storing electric energy in the form of hydraulic energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention belongs to the technical field of energy storage, and relates to an energy storage system, which comprises a fresh water tank and a brine tank, wherein heat exchangers are arranged in the fresh water tank and the brine tank, heat preservation systems are arranged on the surfaces of the fresh water tank and the brine tank, and a steam turbine is fixedly arranged between the fresh water tank and the brine tank. The energy storage system has the advantages that the fresh water tank and the brine tank are arranged, the temperature between the fresh water tank and the brine tank can be kept consistent by means of the work of the heat exchanger, more dissolved salt enters the brine tank, the purpose of improving the energy density and the power density is achieved, the steam turbine is arranged and rotates, the purpose of generating power and charging energy can be achieved by means of the electrical connection with the generator, the heat loss of the device can be reduced by arranging the heat preservation system, the utilization efficiency of the whole system is improved, the energy storage system can realize charging by replacing fresh water and brine, the turbine can also realize reverse charging, and the energy storage is simple, efficient, durable and economical.
Description
Technical Field
The invention belongs to the technical field of energy storage, and particularly relates to an energy storage system.
Background
With the development of new energy power generation, especially photovoltaic and wind power, renewable energy power generation has inherent intermittence and fluctuation, which causes the phenomena of wind abandonment and light abandonment, increases the mismatch degree of supply and demand and influences the stability of a power grid, and the energy storage technology can stabilize the contradiction between supply and demand of electric energy, improve the consumption of wind and light and maintain the stability of the power grid.
For the existing energy storage systems, the mature applications are mainly electrochemical energy storage and pumped storage. The construction of pumped storage power stations is subject to great geographical restrictions, since upper and lower reservoirs are required to be present at close distances and have high height differences. And under the condition of limited height difference, the energy density which can be achieved by the pumped storage power station is very limited. Electrochemical energy storage is mainly based on a lithium ion battery route, and although the electrochemical energy storage has higher energy density and power density, the lithium ion battery has poor low-temperature performance, overheating explosion risk, high cost, intolerance of problems of overcharge and discharge and the like, so that the problems can not be solved so far, and the energy storage market can not be opened.
Meanwhile, the concentration difference between the natural river and the ocean is utilized to generate the salt difference power, and the salt difference energy provided is limited due to the lower temperature of the naturally-occurring river and the naturally-occurring ocean and the seawater concentration of only 3.5 percent. The traditional salt difference energy utilization modes comprise osmotic pressure power generation, reverse electrodialysis power generation and steam pressure difference power generation. Neither has been developed because of the low energy density nor power density.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an energy storage system, which solves the technical problems of poor adaptability, insecurity and high cost.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an energy storage system, includes fresh water tank and salt water tank, all be provided with the heat exchanger in fresh water tank and the salt water tank, fresh water tank and salt water tank surface are provided with the heat preservation system, fixed mounting has the steam turbine between fresh water tank and the salt water tank, steam turbine electric connection has the generator.
As a further scheme of the invention: the heat preservation system is made of heat preservation materials.
As a further scheme of the invention: including but not limited to tube heat exchangers and plate heat exchangers.
As a further scheme of the invention: and the steam turbine and the generator are connected to form a steam turbine power generation system.
As a further scheme of the invention: the fresh water tank and the brine tank are connected through a heat exchanger to form a heat exchange system.
As a further scheme of the invention: the fresh water tank, the brine tank and the steam turbine power generation system are connected to form a power output system.
As a further scheme of the invention: the brine in the brine tank can be a solution formed by various compounds formed by metal ions and acid radical ions and water.
Compared with the prior art, the invention has the beneficial effects that:
this energy storage system, through setting up fresh water jar and salt water jar, with the help of heat exchanger work, can realize that the temperature between fresh water jar and the salt water jar keeps unanimous, adopt to dissolve more salt and get into in the salt water jar, realize the purpose that improves energy density and power density, through setting up the steam turbine, the steam turbine rotates, can realize the electricity generation purpose of charging with the help of the electric connection with the generator, through setting up heat preservation system, can play the effect that reduces the device heat and scatter and disappear, improve the utilization efficiency of entire system, the invention can realize charging through changing fresh water and salt water, also can charge through the turbine reversal, the energy storage is simple, high-efficient, lasting, economy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system of the present invention;
in the figure: 1. a fresh water tank; 2. a brine tank; 3. a heat exchanger; 4. a steam turbine; 5. a generator; 6. a heat preservation system.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides an energy storage system, includes fresh water tank 1 and salt water tank 2, through setting up fresh water tank 1 and salt water tank 2, works with the help of heat exchanger 3, can realize that the temperature between fresh water tank 1 and the salt water tank 2 keeps unanimous, adopts and dissolves more salt and gets into in salt water tank 2, realizes improving energy density and power density's purpose, all is provided with heat exchanger 3 in fresh water tank 1 and the salt water tank 2, and fresh water tank 1 and salt water tank 2 connect through heat exchanger 3 and constitute heat exchange system.
Specifically, the heat exchanger 3 includes, but is not limited to, a tube heat exchanger 3 and a plate heat exchanger 3.
Specifically, the fresh water tank 1, the brine tank 2 and the steam turbine 4 are connected to form a power output system.
Specifically, the brine in the brine tank 2 may be a solution of various compounds of metal ions and acid ions and water.
The working principle of the invention is as follows:
s1, firstly, the steam turbine 4 is pushed to rotate to do work by the steam pressure difference existing between the fresh water tank 1 and the brine tank 2, and the steam turbine 4 drives the generator 5 to generate electricity;
s2, in the running process of the system, the fresh water is less and the brine is more and more, then the increased brine is extracted by filling the reduced fresh water, and the salt is added into the brine pipe to complete energy charging, so that the continuous running of the system is realized, and the purpose of energy charging is realized by reversing the steam turbine 4.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (7)
1. An energy storage system comprising a fresh water tank (1) and a brine tank (2), characterized in that: all be provided with heat exchanger (3) in fresh water tank (1) and salt water tank (2), fresh water tank (1) and salt water tank (2) surface are provided with heat preservation system (6), fixed mounting has steam turbine (4) between fresh water tank (1) and salt water tank (2), steam turbine (4) electric connection has generator (5).
2. An energy storage system according to claim 1, wherein: the heat insulation system (6) is made of heat insulation materials.
3. An energy storage system according to claim 1, wherein: the heat exchanger (3) includes, but is not limited to, a tube heat exchanger (3) and a plate heat exchanger (3).
4. An energy storage system according to claim 1, wherein: and the steam turbine (4) and the generator (5) are connected to form a power generation system of the steam turbine (4).
5. An energy storage system according to claim 1, wherein: the fresh water tank (1) and the brine tank (2) are connected through the heat exchanger (3) to form a heat exchange system.
6. An energy storage system according to claim 4, wherein: the fresh water tank (1), the brine tank (2) and the steam turbine (4) are connected to form a power output system.
7. An energy storage system according to claim 1, wherein: the brine in the brine tank (2) can be a solution formed by water and compounds formed by various metal ions and acid radical ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110632412.7A CN113315245A (en) | 2021-06-07 | 2021-06-07 | Energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110632412.7A CN113315245A (en) | 2021-06-07 | 2021-06-07 | Energy storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113315245A true CN113315245A (en) | 2021-08-27 |
Family
ID=77378164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110632412.7A Pending CN113315245A (en) | 2021-06-07 | 2021-06-07 | Energy storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113315245A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246531A1 (en) * | 2009-04-30 | 2010-11-03 | Alstom Technology Ltd | Power plant with CO2 capture and water treatment plant |
| CN103615363A (en) * | 2013-11-23 | 2014-03-05 | 华中科技大学 | Power generation device and power generation method adopting salinity gradient power |
| CN105134308A (en) * | 2015-07-22 | 2015-12-09 | 赵连新 | High-temperature and high-pressure water energy accumulation steam power generation system |
| CN110203987A (en) * | 2019-05-25 | 2019-09-06 | 哈尔滨工业大学 | A kind of solar seawater desalination collaboration device for generating power by waste heat |
| CN112723640A (en) * | 2020-12-28 | 2021-04-30 | 中国长江三峡集团有限公司 | System and method for clean energy sea water desalination coupling salt difference energy power generation device |
-
2021
- 2021-06-07 CN CN202110632412.7A patent/CN113315245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2246531A1 (en) * | 2009-04-30 | 2010-11-03 | Alstom Technology Ltd | Power plant with CO2 capture and water treatment plant |
| CN103615363A (en) * | 2013-11-23 | 2014-03-05 | 华中科技大学 | Power generation device and power generation method adopting salinity gradient power |
| CN105134308A (en) * | 2015-07-22 | 2015-12-09 | 赵连新 | High-temperature and high-pressure water energy accumulation steam power generation system |
| CN110203987A (en) * | 2019-05-25 | 2019-09-06 | 哈尔滨工业大学 | A kind of solar seawater desalination collaboration device for generating power by waste heat |
| CN112723640A (en) * | 2020-12-28 | 2021-04-30 | 中国长江三峡集团有限公司 | System and method for clean energy sea water desalination coupling salt difference energy power generation device |
Non-Patent Citations (1)
| Title |
|---|
| 纪娟: "海水盐差发电技术的研究进展", 《能源技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110206599B (en) | Combined cooling, heating and power system | |
| CN109026241B (en) | Heat pump compressed air energy storage system | |
| CN110206598B (en) | Heat pump energy storage power generation system based on indirect cold storage and heat storage | |
| CN112524001B (en) | Heat pump electricity storage system based on transcritical Rankine cycle | |
| CN114142791B (en) | Multi-energy complementary all-weather light-heat-electricity combined supply system for ship | |
| CN110206600B (en) | Heat pump electricity storage system and method based on arrayed cold storage and heat storage | |
| CN110212203A (en) | A kind of organic flow battery of basic hydroxide group azophenlyene class and preparation method | |
| CN207010252U (en) | A kind of distributed power generation unit complementary based on various energy resources | |
| CN101938226B (en) | Double-effect solar accumulative black tube | |
| CN107026471A (en) | A kind of distributed generation system coupled based on multiple renewable energy sources | |
| CN203100223U (en) | Solar combined heat and power generation system based on pulsating heat pipe | |
| CN112124507A (en) | Wind energy wave photovoltaic power generation floating platform and use method thereof | |
| CN111141056A (en) | Heat pump energy storage system based on indirect cold storage and heat storage | |
| CN215404565U (en) | Hydrogen energy recycling system in extremely cold region | |
| CN105826579A (en) | Temperature difference energy chemical battery | |
| Hongkai et al. | Green power generation technology for distributed power supply | |
| CN212838198U (en) | Hot-melt salt heat storage ocean temperature difference energy-solar energy combined hydrogen energy production system | |
| CN210370818U (en) | Heat pump energy storage power generation system based on indirect cold storage and heat storage | |
| CN205178621U (en) | Power generation system provides multiple forms of energy to complement each other | |
| CN115727384B (en) | Heating system for realizing peak shaving and cross-season heat storage of thermoelectric unit and operation method | |
| CN209910216U (en) | Wind-solar complementary drive absorption heat pump system | |
| CN116826126A (en) | Iron-vanadium electrolyte and iron-vanadium redox flow battery | |
| CN113315245A (en) | Energy storage system | |
| CN207365168U (en) | A kind of new type solar energy and the compound renewable energy system of geothermal energy | |
| CN211575590U (en) | Energy storage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210827 |