CN110854937A - Thermal power frequency modulation method of coupling heat storage device - Google Patents
Thermal power frequency modulation method of coupling heat storage device Download PDFInfo
- Publication number
- CN110854937A CN110854937A CN201911282380.1A CN201911282380A CN110854937A CN 110854937 A CN110854937 A CN 110854937A CN 201911282380 A CN201911282380 A CN 201911282380A CN 110854937 A CN110854937 A CN 110854937A
- Authority
- CN
- China
- Prior art keywords
- steam
- thermal
- storage device
- heat storage
- heat
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
-
- 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
Abstract
The invention discloses a thermal power frequency modulation method of a coupling heat storage device, which is characterized in that the thermal power generating set is coupled with the heat storage device; during energy storage, waste electricity generated by the thermal generator set is used as heating energy of the heat storage device, electric energy is converted into heat energy and stored in the heat storage device, peak clipping service is provided for a power supply side, and the waste peak electricity is reduced; when energy is released, water is transferred by the heat energy stored in the heat storage device and the evaporation heat exchange equipment, saturated steam which meets the requirement of starting a steam turbine in the thermal generator set is generated after heating and evaporation to push the steam turbine, the output of the steam turbine is improved, and the power of the steam turbine quickly meets the frequency modulation requirement. The invention adopts the heat storage device as a frequency modulation technical means, has low device cost and good safety, can greatly improve the peak-shaving and frequency-modulating capacity of the thermal power generating unit through the coupling with the thermal power generating unit, provides technical support for the safety of a power grid, improves the flexible output capacity of the thermal power generating unit, and improves the accepting capacity of the power grid to new energy.
Description
Technical Field
The invention belongs to the field of thermal power generation, particularly relates to an electric heating energy conversion and high-efficiency heat energy storage technology, and particularly relates to a thermal power frequency modulation method of a coupling heat storage device.
Background
At present, the frequency modulation capability of a thermal power generating unit is weak, and the output of a steam turbine of the thermal power generating unit is about 2% min from a coal-fired unit-1To satisfy 10MW min-1The climbing requirement needs to be configured with 500MW coal-fired units, and along with the implementation of electrochemical energy storage technology in the present year, the requirement of meeting frequency modulation by using an electrochemical energy storage station becomes a new generation of peak regulation technical scheme, but because the lithium ion battery has large self reaction activity and frequent fire accidents, the lithium ion battery also provides high requirements for the safety of the lithium ion battery, and is influenced by the problems of battery cost, service life and the like, and the economic benefit of the lithium ion battery is poor.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the requirement of the frequency modulation of the thermal power generating unit, a heat storage frequency modulation technology which utilizes the coupling of a high-temperature heat storage technology and the thermal power generating unit is provided, so that the peak clipping of a heat storage device is realized, and a solution can be provided for the thermal power frequency modulation.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a thermal power frequency modulation method of a coupling heat storage device is characterized in that a high-temperature heat storage device is coupled to a thermal power generator set;
during energy storage, waste electricity generated by the thermal generator set is used as heating energy of the heat storage device, electric energy is converted into heat energy and stored in the heat storage device, peak clipping service is provided for a power supply side, and the waste peak electricity is reduced;
when energy is released, water is transferred by the heat energy stored in the heat storage device and the evaporation heat exchange equipment, saturated steam which meets the requirement of starting a steam turbine in the thermal generator set is generated after the water is vaporized at high temperature to drive the steam turbine, the output of the steam turbine is improved, and the power of the steam turbine quickly meets the frequency modulation requirement.
Specifically, saturated steam generated by the heat storage device is merged into a high-pressure steam pipe network or a medium-pressure steam pipe network of the thermal power generating unit and is respectively used for driving a high-pressure cylinder, a medium-pressure cylinder or a low-pressure cylinder.
The heat storage device comprises a closed heat preservation cavity, a plurality of electric heating elements and a plurality of heat storage modules which are positioned in the heat preservation cavity and sequentially arranged at intervals, an evaporator positioned on one side inside the heat preservation cavity, a fan positioned on one side of the evaporator, and a steam pocket positioned outside the heat preservation cavity and connected with a steam ascending pipe of the evaporator;
the electric heating element is connected with an electric control unit of the thermal generator set through an electric wire, and the electric heating element is heated by taking waste electricity generated by the thermal generator set as electric energy;
the heat storage module and the electric heating element are correspondingly provided with mutually communicated airflow channels, and heat energy generated on the electric heating element is stored in the heat storage module through airflow;
the fan is used for enabling the airflow of the heat-preservation cavity to form circulating reflux and enter the evaporator;
the evaporator forms high-temperature steam by utilizing high-temperature airflow entering the evaporator, and heat is conveyed to an upper steam pocket through a steam ascending pipe in the evaporator;
the steam drum generates high-temperature saturated steam through heat transmitted by the evaporator below, and the high-temperature saturated steam enters the thermal power generator set through the steam output pipe to push the steam turbine to generate power.
Furthermore, the steam pocket is connected with the thermal generator set and the heating power network through a three-way valve, and high-temperature saturated steam is respectively conveyed to the thermal generator set or the heating power network.
Preferably, each heat storage module is respectively positioned at the front end of the airflow direction of each electric heating element.
Preferably, the fan is located at an air inlet of the evaporator and rapidly conveys high-temperature hot gas into the evaporator.
Specifically, the heat storage medium in the heat storage module is a high-temperature phase-change material such as magnesia brick, cordierite or molten salt.
The invention further provides a thermal generator set coupled with the heat storage device, wherein one end of the heat storage device is connected with an electric control unit of the thermal generator set, and the other end of the heat storage device is connected with a steam pipe network of the thermal generator set;
during energy storage, waste electricity generated by the thermal generator set is used as heating energy of the heat storage device, electric energy is converted into heat energy and stored in the heat storage device, peak clipping service is provided for a power supply side, and the waste peak electricity is reduced;
during energy release, saturated steam which meets the requirement of starting a steam turbine in the thermal generator set is generated to drive the steam turbine through heat energy stored in the heat storage device, the output of the steam turbine is improved, and the power of the steam turbine can quickly meet the frequency modulation requirement.
Has the advantages that:
1. the invention adopts the heat storage device as a frequency modulation technical means, has low device cost and good safety, can greatly improve the peak-shaving and frequency-modulating capacity of the thermal power generating unit through the coupling with the thermal power generating unit, provides technical support for the safety of a power grid, improves the flexible output capacity of the thermal power generating unit, and improves the accepting capacity of the power grid to new energy.
2. The method can be popularized in a plurality of application scenes such as frequency modulation and peak shaving of the thermal power generating unit, is expected to realize various requirements such as clean rotation standby, high-efficiency safe frequency modulation and the like of the thermal power generating unit, greatly reduces the consumption of fire coal in a low-load operation state when the thermal power generating unit is used as a peak-shaving frequency modulation power supply, improves the overall utilization rate of the system, increases the flexibility of the thermal power generating unit, and reduces the problem of carbon emission.
Drawings
The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Fig. 1 is a block diagram of a conventional thermal power plant.
Fig. 2 is a block diagram of a thermal generator set coupled with a thermal storage device according to the present invention.
Fig. 3 is a schematic structural view of the thermal storage device.
Wherein each reference numeral represents:
1, a heat preservation cavity; 2 an electrically powered heating element; 3, a heat storage module; 4, an evaporator; 5, a fan; 6, a steam drum; 61 steam drum water inlet; 62 a steam output pipe.
Detailed Description
The invention will be better understood from the following examples.
The structures, proportions, and dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the skilled in the art. In addition, the terms "upper", "lower", "front", "rear" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
Fig. 1 shows a block diagram of a conventional thermal generator set. High-temperature saturated steam generated by the coal-fired boiler firstly enters the high-pressure side steam turbine through the high-pressure pipeline to push the high-pressure side steam turbine to operate for power generation, and meanwhile, the rest high-temperature steam enters the middle-low pressure side steam turbine through the medium-pressure pipeline to push the middle-low pressure side steam turbine to operate for power generation.
Fig. 2 is a block diagram of a thermal generator set coupled with a heat storage device according to the present invention. A lead is connected to the power control unit before the generator is incorporated into the grid, connected to the electrical heating element 2 of the thermal storage device, for supplying power to the electrical heating element 2 for dissipating the waste power. The heat storage device comprises a closed heat insulation cavity 1 (surrounded by a wall body with a heat insulation layer), a plurality of electric heating elements 2 and a plurality of heat storage modules 3 (the heat storage media are high-temperature phase-change materials such as magnesia bricks, cordierite or fused salt) which are positioned in the heat insulation cavity 1 and are sequentially arranged at intervals, an evaporator 4 positioned on one side inside the heat insulation cavity 1, a fan 5 positioned on one side of the evaporator 4, and a steam pocket 6 which is positioned outside the heat insulation cavity 1 and is connected with a steam riser of the evaporator 4. The electric heating element 2 is connected with an electric control unit of the thermal generator set through an electric wire, and the electric heating element 2 is heated by using waste electricity generated by the thermal generator set as electric energy. The heat storage module 3 and the electric heating element 2 are correspondingly provided with mutually communicated airflow channels, and heat energy generated on the electric heating element 2 is stored in the heat storage module 3 through airflow. The fan 5 is used for enabling the airflow of the heat preservation cavity 1 to form circulation reflux, is positioned at an air inlet of the evaporator 4 and quickly conveys high-temperature hot gas into the evaporator. The evaporator 4 forms high-temperature steam by using high-temperature airflow entering the evaporator, and heat is conveyed to an upper steam pocket 6 through a steam ascending pipe inside the evaporator. The steam drum 6 generates high-temperature saturated steam through heat transmitted by the evaporator 4 below, and the high-temperature saturated steam enters a high-pressure pipeline of the thermal power generating unit through a steam output pipe 62 to push a steam turbine to generate power; one side of the bottom of the steam drum 6 is provided with a steam drum water inlet 61.
The steam output pipe of the steam pocket 6 is connected with the thermal generator set and the heating power network through a three-way valve, and high-temperature saturated steam is respectively conveyed to the thermal generator set or the heating power network.
Example 1
The heat storage device is in a hot standby state, the steam space in the steam drum is filled with saturated steam at the temperature of 430 ℃ under the pressure of 3.83MPa, the flow of a steam outlet is 0, a fan of the heat storage device is in a low-speed operation state or an inoperative state, the temperature and the pressure in the steam drum are maintained, and the heat storage capacity of the heat storage module is kept between 80 and 100 percent of the heat storage capacity. On get instruction request exitWhen the full load or any other load output requirement is met, the steam drum and a high-pressure pipeline of the thermal generator set are communicated, the fan operates quickly, hot air in the heat-insulating cavity is guided into the evaporator, and the output of the steam outlet is maximized. Through calculation analysis and test analysis of heat exchange quantity, when the heat storage material is at different temperatures, the output load of the heat storage module is rapidly increased, and the increase rate of the output load can be 30-90% min of the full-load output power of the heat storage module-1The time required by the device to reach full load output is about 2-20 seconds, the generated steam enters a high-pressure pipeline through a regulating valve to drive a steam turbine to generate power, and when the steam boiler does not meet the power requirement, the thermal generator set can reach the required power to meet the secondary frequency modulation requirement of a power grid.
Example 2
The heat storage device is in a cold standby state, no saturated steam exists in the steam space in the steam drum at the moment, the fan of the heat storage device is in a non-running state, water meeting the steam running requirement exists in the steam drum water space, and the heat storage capacity of the heat storage device is kept between 80% and 100% of the heat storage capacity. When the demand is obtained and the outlet is full load or other arbitrary load output demand is required, the steam pocket and the high-pressure pipeline of the thermal generator set are communicated, the fan runs fast, and hot air in the heat-insulation cavity is guided into the evaporator. At the moment, steam is generated gradually after heat exchange and heating in the steam drum, and the power is output after the steam drum reaches a saturated state. Through heat exchange amount calculation analysis and test analysis, when the heat storage materials are at different temperatures, the output of the heat storage module is rapidly increased, namely the time required by the device to reach full load output is about 2-5 minutes, generated steam enters a medium-pressure pipeline through a regulating valve to drive a steam turbine to generate power, and when a steam boiler does not meet the power requirement, a thermal generator set can reach the required power, so that the secondary frequency modulation requirement of a power grid can be met.
Example 3
The heating is the main mode of exerting oneself, abandons the peak electricity and makes the electric heating element of heat storage device generate heat, stores abundant electric power in the heat-retaining module, does not influence original coal-fired thermal power generating unit's the ability of exerting oneself of generating electricity, and the steam pocket produces low pressure heating steam according to the requirement of low pressure steam pipe network simultaneously, satisfies the demand of heating power network to low pressure saturated steam, and pressure is generally 0.4 ~ 2.0MPa, and unnecessary saturated steam merges the heating power network for the heating.
The present invention provides a method and a concept for a thermal power frequency modulation method coupled with a thermal storage device, and a method and a way for implementing the technical scheme are many, the above description is only a preferred embodiment of the present invention, and it should be noted that, for a person skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (10)
1. A thermal power frequency modulation method of a coupling heat storage device is characterized in that the thermal power generating set is coupled with the heat storage device;
during energy storage, waste electricity generated by the thermal generator set is used as heating energy of the heat storage device, electric energy is converted into heat energy and stored in the heat storage device, peak clipping service is provided for a power supply side, and the waste peak electricity is reduced;
during energy release, saturated steam which meets the requirement of starting a steam turbine in the thermal generator set is generated to drive the steam turbine through heat energy stored in the heat storage device, the output of the steam turbine is improved, and the power of the steam turbine can quickly meet the frequency modulation requirement.
2. The thermal power frequency modulation method of the coupled heat storage device according to claim 1, wherein saturated steam generated by the heat storage device is merged into a high-pressure steam pipe network or a medium-pressure steam pipe network of a thermal power generating unit and is respectively used for driving a high-pressure cylinder, a medium-pressure cylinder or a low-pressure cylinder.
3. The thermal power frequency modulation method of the coupled thermal storage device according to claim 1, wherein the thermal storage device comprises a closed thermal insulation cavity (1), a plurality of electric heating elements (2) and a plurality of heat storage modules (3) which are positioned in the thermal insulation cavity (1) and are sequentially arranged at intervals, an evaporator (4) positioned on one side inside the thermal insulation cavity (1), a fan (5) positioned on one side of the evaporator (4), and a steam pocket (6) positioned outside the thermal insulation cavity (1) and connected with a steam riser of the evaporator (4);
the electric heating element (2) is connected with an electric control unit of the thermal generator set through an electric wire, and the electric heating element (2) is heated by taking waste electricity generated by the thermal generator set as electric energy;
the heat storage module (3) and the electric heating element (2) are correspondingly provided with mutually communicated airflow channels, and heat energy generated on the electric heating element (2) is stored in the heat storage module (3) through airflow;
the fan (5) is used for enabling the airflow of the heat-preservation cavity (1) to form circulation reflux and enter the evaporator (4);
the evaporator (4) forms high-temperature steam by utilizing high-temperature airflow entering the evaporator, and heat is conveyed to the steam pocket (6) above the evaporator through the steam ascending pipe in the evaporator;
the steam drum (6) generates high-temperature saturated steam through heat transmitted by the evaporator (4) below, and the high-temperature saturated steam enters the thermal power generating unit through the steam output pipe to push the steam turbine to generate power.
4. The thermal power frequency modulation method of the coupled heat storage device according to claim 3, wherein the steam drum (6) is connected with the thermal power generating unit and the thermal power grid through a three-way valve, and high-temperature saturated steam is respectively conveyed to the thermal power generating unit or the thermal power grid.
5. The thermal power frequency modulation method of the coupled thermal storage device according to claim 3, characterized in that each thermal storage module (3) is respectively positioned at the front end of the airflow direction of each electric heating element (2).
6. The thermal power frequency modulation method of the coupled thermal storage device according to claim 3, wherein the fan (5) is positioned at an air inlet of the evaporator (4).
7. The thermal power frequency modulation method of the coupled thermal storage device according to claim 3, wherein the thermal storage medium in the thermal storage module (3) is a high-temperature phase change material of magnesia brick, cordierite or molten salt.
8. A thermal generator set coupled with a heat storage device is characterized in that one end of the heat storage device is connected with an electric control unit of the thermal generator set, and the other end of the heat storage device is connected with a steam pipe network of the thermal generator set;
during energy storage, waste electricity generated by the thermal generator set is used as heating energy of the heat storage device, electric energy is converted into heat energy and stored in the heat storage device, peak clipping service is provided for a power supply side, and the waste peak electricity is reduced;
during energy release, saturated steam which meets the requirement of starting a steam turbine in the thermal generator set is generated to drive the steam turbine through heat energy stored in the heat storage device, the output of the steam turbine is improved, and the power of the steam turbine can quickly meet the frequency modulation requirement.
9. The thermal generator set coupled with the heat storage device according to claim 8, wherein the heat storage device comprises a closed heat preservation cavity (1), a plurality of electric heating elements (2) and a plurality of heat storage modules (3) which are positioned in the heat preservation cavity (1) and are sequentially arranged at intervals, an evaporator (4) positioned at one side inside the heat preservation cavity (1), a fan (5) positioned at one side of the evaporator (4), and a steam pocket (6) positioned outside the heat preservation cavity (1) and connected with a steam riser pipe of the evaporator (4);
the electric heating element (2) is connected with an electric control unit of the thermal generator set through an electric wire, and the electric heating element (2) is heated by taking waste electricity generated by the thermal generator set as electric energy;
the heat storage module (3) and the electric heating element (2) are correspondingly provided with mutually communicated airflow channels, and heat energy generated on the electric heating element (2) is stored in the heat storage module (3) through airflow;
the fan (5) is used for enabling the airflow of the heat-preservation cavity (1) to form circulation reflux and enter the evaporator (4);
the evaporator (4) forms high-temperature steam by utilizing high-temperature airflow entering the evaporator, and heat is conveyed to the steam pocket (6) above the evaporator through the steam ascending pipe in the evaporator;
the steam drum (6) generates high-temperature saturated steam through heat transmitted by the evaporator (4) below, and the high-temperature saturated steam enters the thermal power generating unit through the steam output pipe to push the steam turbine to generate power.
10. The thermal power generating unit coupled with the heat storage device according to claim 9, wherein the steam pocket (6) is connected with the thermal power generating unit and the thermal power network through a three-way valve, and high-temperature saturated steam is respectively conveyed to the thermal power generating unit or the thermal power network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282380.1A CN110854937A (en) | 2019-12-13 | 2019-12-13 | Thermal power frequency modulation method of coupling heat storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282380.1A CN110854937A (en) | 2019-12-13 | 2019-12-13 | Thermal power frequency modulation method of coupling heat storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110854937A true CN110854937A (en) | 2020-02-28 |
Family
ID=69609701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911282380.1A Pending CN110854937A (en) | 2019-12-13 | 2019-12-13 | Thermal power frequency modulation method of coupling heat storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110854937A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704380A (en) * | 2022-03-14 | 2022-07-05 | 国网浙江省电力有限公司电力科学研究院 | Peak-shaving power generation system and method of coal-fired unit coupled with thermochemical energy storage |
| CN115864533A (en) * | 2022-11-28 | 2023-03-28 | 新疆鹏煜能源科技集团有限公司 | Hybrid shared energy storage and cogeneration energy echelon utilization device and method |
-
2019
- 2019-12-13 CN CN201911282380.1A patent/CN110854937A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704380A (en) * | 2022-03-14 | 2022-07-05 | 国网浙江省电力有限公司电力科学研究院 | Peak-shaving power generation system and method of coal-fired unit coupled with thermochemical energy storage |
| CN114704380B (en) * | 2022-03-14 | 2023-07-14 | 国网浙江省电力有限公司电力科学研究院 | Peak regulation power generation system and method of coal-fired unit coupled with thermochemical energy storage |
| CN115864533A (en) * | 2022-11-28 | 2023-03-28 | 新疆鹏煜能源科技集团有限公司 | Hybrid shared energy storage and cogeneration energy echelon utilization device and method |
| CN115864533B (en) * | 2022-11-28 | 2024-01-23 | 新疆鹏煜能源科技集团有限公司 | Mixed type shared energy storage and cogeneration energy cascade utilization device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212157096U (en) | Peak-regulating and frequency-modulating system for solid heat storage power generation of thermal power plant | |
| CN108317767B (en) | Proton exchange membrane fuel cell waste heat utilization system and method | |
| KR20160140945A (en) | solar thermal and BIGCC-integrated hybrid power generation system | |
| CN111288428A (en) | Fused salt electrode boiler heat-storage power generation system | |
| CN105804813A (en) | Method for improving energy storage efficiency of compressed air energy storage system | |
| CN109826708A (en) | A kind of compressed-air energy-storage system and application method of advanced distributed multiple-supplying | |
| CN113390075A (en) | Thermal power plant solid heat storage power generation peak regulation and frequency modulation system and working method | |
| CN111075668A (en) | Utilize electricity storage system of solid particle heat-retaining | |
| JP3674790B2 (en) | Cogeneration system | |
| CN110854937A (en) | Thermal power frequency modulation method of coupling heat storage device | |
| CN103775211A (en) | Distribution type combined cooling, heating and power supply system for active regulation-control type combustion gas turbine | |
| CN103925629A (en) | Wind driven generator peak shaving phase-change energy-storage heat supply system | |
| CN115717845A (en) | Method for improving peak regulation capacity of thermal power generating unit by fused salt energy storage | |
| CN205783981U (en) | A kind of distributed energy resource system of active accumulation of energy regulation and control | |
| CN107702360A (en) | A kind of cool and thermal power utilization system based on solar energy | |
| CN113324276B (en) | Frequency modulation and peak regulation safe heat supply system based on molten salt heat storage and working method thereof | |
| CN108397365A (en) | One kind being based on photo-thermal power generation co-generation unit and method | |
| CN112983565A (en) | Thermal power generating unit steam extraction auxiliary frequency modulation peak regulation system based on heat storage | |
| CN113390074A (en) | Thermal power plant heat storage power generation peak regulation and frequency modulation system and working method | |
| CN213120223U (en) | Thermal generator set coupled with fused salt heat storage device | |
| CN217816970U (en) | First station of multi-energy complementary green energy heat supply network | |
| CN203797761U (en) | Peak-shaving phase-change energy storage heating system for wind generators | |
| CN211183438U (en) | Thermal generator set coupled with heat storage device | |
| CN217935102U (en) | Peak-regulating frequency-modulating system coupling electricity and heat storage | |
| CN215174935U (en) | High-low temperature heat storage peak shaving system of thermal power plant |
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 |