CN112146074A - Fused salt energy storage thermal power frequency modulation and peak shaving system and method - Google Patents
Fused salt energy storage thermal power frequency modulation and peak shaving system and method Download PDFInfo
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- CN112146074A CN112146074A CN202011151484.1A CN202011151484A CN112146074A CN 112146074 A CN112146074 A CN 112146074A CN 202011151484 A CN202011151484 A CN 202011151484A CN 112146074 A CN112146074 A CN 112146074A
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- 150000003839 salts Chemical class 0.000 title claims abstract description 169
- 238000004146 energy storage Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 50
- 230000008569 process Effects 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 10
- 238000010248 power generation Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 238000005338 heat storage Methods 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 6
- 239000012943 hotmelt Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/22—Methods of steam generation characterised by form of heating method using combustion under pressure substantially exceeding atmospheric pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
-
- 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
- Y02E60/14—Thermal energy storage
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
A fused salt energy storage thermal power frequency modulation and peak regulation system and method comprises a bidirectional heat exchanger, wherein one end of the tube side of the bidirectional heat exchanger is connected with a cold fused salt pump, the other end of the bidirectional heat exchanger is connected with a hot fused salt pump, one end of the shell side of the bidirectional heat exchanger is connected with a superheater rear pipeline of a thermal power unit, the other end of the bidirectional heat exchanger is connected with a feed pump rear pipeline and a deaerator heating steam extraction pipeline, the cold fused salt pump is connected with a cold fused salt tank, low-temperature fused salt is pumped to the tube side of the bidirectional heat exchanger, and flows into the hot fused salt tank through the hot; and high-temperature molten salt in the hot molten salt tank is pumped to the pipe side of the bidirectional heat exchanger through the hot molten salt pump and flows into the cold molten salt tank through the cold molten salt pump. The molten salt is used for efficiently storing and releasing the difference between energy production and demand in the thermal power generation process by utilizing the advantages of good fluidity and high heat capacity of the molten salt, and exchanges heat with water and steam of the thermal power generating unit, so that the aim of quickly and stably adjusting the thermal power generating unit is fulfilled.
Description
Technical Field
The invention relates to the technical field of thermal power generation frequency modulation and peak shaving, in particular to a fused salt energy storage thermal power frequency modulation and peak shaving system and method.
Background
Thermal power generation is one of the most important ways for human beings to obtain electric power, and a rankine cycle that utilizes fuel and water vapor to drive a steam turbine is the most widely used thermodynamic cycle power generation system. Along with the continuous increase of human demand for electric power, the capacity of electric power system becomes very huge, and the demand of power consumption load is more and more diversified, and a large amount of new forms of energy electricity generation are merged into the electric wire netting simultaneously, like wind-powered electricity generation, photovoltaic power generation etc. and it does not possess the regulating power itself yet for the regulation of electric wire netting relies on traditional thermal power system in a large number and undertakes. The large thermal power generation adopts combustion coal as a heat source, a power station boiler combustion system is large and complex, frequent and large-amplitude frequency modulation and peak load regulation requirements of a power grid are difficult to respond, the safety and flexibility of the power grid operation are reduced, and although the contradiction can be relieved by technical transformation and improvement of the control capability of a power station control system, the adjustment of a large thermal power generating unit is difficult and fundamentally solved. However, the development of energy storage materials and energy storage technology provides an effective solution to this problem.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a fused salt energy storage thermal power frequency modulation and peak regulation system and a fused salt energy storage thermal power frequency modulation and peak regulation method, which utilize the advantages of good fluidity and high heat capacity of fused salt to efficiently store and release the energy production and demand difference in the thermal power generation process by using the fused salt, and exchange heat with water and steam of a thermal power generating unit to realize the purpose of quickly and stably regulating the thermal power generating unit.
In order to achieve the purpose, the invention adopts the technical scheme that:
a fused salt energy storage thermal power frequency modulation peak regulation system comprises a bidirectional heat exchanger 3, wherein one end of the tube side of the bidirectional heat exchanger 3 is connected with a cold fused salt pump 4, the other end of the bidirectional heat exchanger is connected with a hot fused salt pump 5, one end of the shell side of the bidirectional heat exchanger 3 is connected with a superheater rear pipeline of a thermal power unit, the other end of the shell side of the bidirectional heat exchanger is connected with a feed pump rear pipeline and a deaerator heating steam extraction pipeline, the cold fused salt pump 4 is connected with a cold fused salt tank 1, low-temperature fused salt is pumped to the tube side of the bidirectional heat exchanger 3, and flows into a hot fused salt tank 2 through;
the high-temperature molten salt in the hot molten salt tank 2 is pumped to the pipe side of the bidirectional heat exchanger 3 through the hot molten salt pump 5 and flows into the cold molten salt tank 1 through the cold molten salt pump 4.
A first valve 6 is arranged on a pipeline connected between one end of the shell side of the bidirectional heat exchanger 3 and a superheater of the thermal power unit; the other end of the shell side of the bidirectional heat exchanger 3 is connected with a water feeding pump and a deaerator through pipelines respectively, and a second valve 7 and a third valve 8 are arranged on the pipelines respectively.
And a heat tracing device 9 is arranged inside the cold molten salt tank 1, inside the hot molten salt tank 2, inside the two-way heat exchanger 3, between one end of the tube side of the two-way heat exchanger 3 and the cold molten salt pump 4, between the other end of the tube side of the two-way heat exchanger 3 and the hot molten salt pump 5, between the other end of the shell side of the two-way heat exchanger 3 and the water feeding pump, and between the other end of the shell side of the two-way heat exchanger 3 and the deaerator.
The cold molten salt pump 4 and the hot molten salt pump 5 respectively and independently operate in the processes of energy storage and energy release.
The system is applied to a thermodynamic power generation circulating system of a carbon dioxide Brayton cycle.
A method of a fused salt energy storage thermal power frequency modulation and peak shaving system comprises the following steps;
when the system normally works and does not participate in frequency modulation and peak shaving, the cold molten salt tank 1 and the hot molten salt tank 2 respectively store a certain volume of low-temperature molten salt and high-temperature molten salt liquid, the first valve 6, the second valve 7 and the third valve 8 are all closed, and the cold molten salt pump 4 and the hot molten salt pump 5 are all stopped;
when the thermal power generating unit has frequency modulation peak regulation requirements, for load increase conditions, a first valve 6 and a second valve 7 are opened, meanwhile, a hot molten salt pump 5 operates, a part of high-pressure saturated water behind a boiler water supply pump flows through the shell side of a bidirectional heat exchanger 3, is heated by high-temperature molten salt flowing in a pipe side in a countercurrent mode to become high-temperature high-pressure steam, and is converged into a main steam pipeline of the thermal power generating unit to enter a steam turbine to do work, at the moment, the hot molten salt completes a heat release process and flows into a cold molten salt tank 1, and the steam quantity of the thermal power generating unit is rapidly increased; for the load reduction situation, the first valve 6 and the third valve 8 are opened, the cold molten salt pump 4 runs, part of high-temperature main steam of the boiler flows through the shell side of the bidirectional heat exchanger 3, low-temperature molten salt flowing on the pipe side is heated in a countercurrent mode and then flows into a heating steam extraction pipeline of a deaerator of a thermal power generating unit, at the moment, the cold molten salt finishes the heat storage process and flows into the hot molten salt tank 2, the cold molten salt tank and the hot molten salt tank are kept at proper molten salt liquid levels in the idle process of the molten salt through the energy storage or release process of the molten salt, and when the system is idle for a long time, the heat tracing devices 9 at each position can be opened to avoid the solidification of.
The invention has the beneficial effects that:
the system utilizes two molten salt tanks and a bidirectional heat exchanger, stores heat energy of partial main steam of the thermal power generating unit in a molten salt heat storage medium in a sensible heat mode, absorbs and releases heat energy through bidirectional flow of cold and hot molten salt, enables the thermal power generating unit to respond quickly to adjustment requirements, enables a boiler with large inertia to adapt to changes of load requirements through a slow adjusting process, and has the characteristics of simplicity, easiness in control and high system efficiency.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Wherein, 1 is a cold molten salt tank, 2 is a hot molten salt tank, 3 is a bidirectional heat exchanger, 4 is a cold molten salt pump, 5 is a hot molten salt pump, 6-8 are valves, and 9 is a heat tracing device.
Detailed Description
The present invention will be described in further detail with reference to examples.
Referring to fig. 1, a cold molten salt tank 1 and a hot molten salt tank 2 of the fused salt energy storage thermal power frequency modulation peak regulation system respectively store low-temperature and high-temperature fused salt media, the cold molten salt tank 1 is connected with a cold molten salt pump 4, low-temperature fused salt is pumped to the pipe side of a bidirectional heat exchanger 3, and flows into the hot molten salt tank 2 through a hot molten salt pump 5; the high-temperature molten salt in the hot molten salt tank 2 is pumped to the pipe side of the bidirectional heat exchanger 3 through the hot molten salt pump 5 and flows into the cold molten salt tank 1 through the cold molten salt pump 4, and the cold molten salt pump and the hot molten salt pump respectively and independently operate in the processes of energy storage and energy release.
The cold molten salt pump 4 is connected with the cold molten salt tank 1, and the cold molten salt pump 4 is used for pumping low-temperature molten salt.
And the hot-melt salt pump 5 is connected with the hot-melt salt tank 2 and used for pumping high-temperature molten salt.
The shell side of the bidirectional heat exchanger 3 of the fused salt energy storage thermal power frequency modulation peak regulation system is connected with a steam-water flow of a thermal power unit, and one end of the shell side is connected with a rear main steam pipeline of a superheater of the thermal power unit and is controlled by a first valve 6; the other end of the shell side is respectively connected with the back of a water feeding pump of the thermal power generating unit and a heating steam extraction pipeline of the deaerator and is respectively controlled by a second valve 7 and a third valve 8.
The heat tracing device 9 is installed on a molten salt tank, a bidirectional heat exchanger and a pipeline of the fused salt energy storage thermal power frequency modulation peak regulation system, so that fused salt at each position of the system can not be solidified.
The fused salt energy storage thermal power frequency modulation peak regulation system is provided with a cold fused salt storage tank 1 and a hot fused salt storage tank 2, wherein the cold fused salt storage tank and the hot fused salt storage tank respectively store low-temperature and high-temperature fused salt media under normal pressure, and have good heat insulation performance.
The bidirectional heat exchanger 3 is of a shell-and-tube heat exchanger structure, fluid on the shell side is water or steam, fluid on the tube side is molten salt, the fluid on the shell side and the fluid on the tube side of the bidirectional heat exchanger are both allowed to flow in a bidirectional mode, but the fluid on the shell side and the fluid on the tube side must be in a countercurrent heat exchange mode.
And one end of the tube side of the bidirectional heat exchanger 3 is connected with the cold molten salt pump 4, and the other end of the bidirectional heat exchanger is connected with the hot molten salt pump 5. One end of the shell side of the steam-extraction device is connected with a rear pipeline of a superheater of the thermal power generating unit, and the other end of the steam-extraction device is connected with a rear pipeline of a water feed pump and a heating steam extraction pipeline of a deaerator.
The cold molten salt pump 4 is connected with the cold molten salt tank 1 and one end of the tube side of the bidirectional heat exchanger 3, and pumps low-temperature molten salt; and the hot-melt salt pump 5 is connected with the other end of the pipe side of the hot-melt salt tank 2 and the bidirectional heat exchanger 3 and pumps high-temperature molten salt.
The specific working process of the invention is as follows:
when the system normally works and does not participate in frequency modulation and peak shaving, the cold molten salt tank 1 and the hot molten salt tank 2 respectively store low-temperature molten salt and high-temperature molten salt liquid with certain volumes, the first valve 6, the second valve 7 and the third valve 8 are all closed, and the cold molten salt pump 4 and the hot molten salt pump 5 are all shut down. When the thermal power generating unit has frequency modulation peak regulation requirements, for load increase conditions, a first valve 6 and a second valve 7 are opened, meanwhile, a hot molten salt pump 5 operates, a part of high-pressure saturated water behind a boiler water supply pump flows through the shell side of a bidirectional heat exchanger 3, is heated by high-temperature molten salt flowing in a pipe side in a countercurrent mode to become high-temperature high-pressure steam, and is converged into a main steam pipeline of the thermal power generating unit to enter a steam turbine to do work, at the moment, the hot molten salt completes a heat release process and flows into a cold molten salt tank 1, and the steam quantity of the thermal power generating unit is rapidly increased; for the load reduction situation, the first valve 6 and the third valve 8 are opened, the cold molten salt pump 4 runs, part of high-temperature main steam of the boiler flows through the shell side of the bidirectional heat exchanger 3, low-temperature molten salt flowing from the pipe side is heated in a countercurrent mode and then flows into a thermal power unit deaerator heating steam extraction pipeline, and at the moment, the cold molten salt completes the heat storage process and flows into the hot molten salt tank 2. Through the process of storing or releasing energy by fused salt, the cold and hot fused salt tanks are kept at proper fused salt liquid levels when the system is idle. When the system is idle for a long time, the heat tracing device 9 at each position can be opened, and the solidification of the fused salt is avoided.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The fused salt energy storage thermal power frequency modulation and peak shaving system is characterized by comprising a bidirectional heat exchanger (3), wherein one end of the tube side of the bidirectional heat exchanger (3) is connected with a cold fused salt pump (4), the other end of the bidirectional heat exchanger is connected with a hot fused salt pump (5), one end of the shell side of the bidirectional heat exchanger (3) is connected with a superheater rear pipeline of a thermal power unit, the other end of the bidirectional heat exchanger is connected with a feed pump rear pipeline and a deaerator heating steam extraction pipeline, the cold fused salt pump (4) is connected with a cold fused salt tank (1), low-temperature fused salt is pumped to the tube side of the bidirectional heat exchanger (3), and flows into the hot fused salt tank (2) through the hot fused salt pump (5);
and the high-temperature molten salt in the hot molten salt tank (2) is pumped to the pipe side of the bidirectional heat exchanger (3) through a hot molten salt pump (5) and flows into the cold molten salt tank (1) through a cold molten salt pump (4).
2. The fused salt energy storage thermal power frequency modulation and peak regulation system of claim 1, wherein a first valve (6) is arranged on a pipeline connected between one end of the shell side of the bidirectional heat exchanger (3) and a thermal power unit superheater; the other end of the shell side of the bidirectional heat exchanger (3) is connected with a water feeding pump and a deaerator through pipelines respectively, and a second valve (7) and a third valve (8) are arranged on the pipelines respectively.
3. The fused salt energy storage thermal power frequency modulation and peak regulation system according to claim 1, wherein a heat tracing device (9) is arranged inside the cold fused salt tank (1), inside the hot fused salt tank (2), inside the bidirectional heat exchanger (3), between one end of the tube side of the bidirectional heat exchanger (3) and the cold fused salt pump (4), between the other end of the tube side of the bidirectional heat exchanger (3) and the hot fused salt pump (5), between the other end of the shell side of the bidirectional heat exchanger (3) and the water feeding pump, and between the other end of the shell side of the bidirectional heat exchanger (3) and the deaerator.
4. The fused salt energy storage thermal power frequency modulation and peak regulation system according to claim 1, wherein the cold fused salt pump (4) and the hot fused salt pump (5) are independently operated in energy storage and release processes respectively.
5. The fused salt energy storage thermal power frequency modulation and peak regulation system based on claim 1 is applied to a thermodynamic power generation circulating system of a carbon dioxide Brayton cycle.
6. The method for the fused salt energy storage thermal power frequency modulation and peak regulation system is characterized by comprising the following steps;
when the system normally works and does not participate in frequency modulation and peak shaving, the cold molten salt tank (1) and the hot molten salt tank (2) respectively store a certain volume of low-temperature molten salt and high-temperature molten salt liquid, the first valve (6), the second valve (7) and the third valve (8) are all closed, and the cold molten salt pump (4) and the hot molten salt pump (5) are all stopped;
when the thermal power generating unit has frequency modulation peak regulation requirements, for load increase conditions, a first valve (6) and a second valve (7) are opened, a hot molten salt pump (5) operates simultaneously, a part of high-pressure saturated water behind a boiler feed water pump flows through the shell side of a bidirectional heat exchanger (3), is heated by high-temperature molten salt flowing in a countercurrent mode at the pipe side to become high-temperature high-pressure steam, and is converged into a main steam pipeline of the thermal power generating unit to enter a steam turbine to do work, at the moment, the hot molten salt completes a heat release process and flows into a cold molten salt tank (1), and the steam quantity of the thermal power generating unit is rapidly increased; for the load reduction condition, a first valve (6) and a third valve (8) are opened, a cold molten salt pump (4) is operated, a part of high-temperature main steam of the boiler flows through the shell side of a bidirectional heat exchanger (3), low-temperature molten salt flowing on the pipe side is heated in a countercurrent mode and then converges into a deaerator heating steam extraction pipeline of a thermal power unit, the cold molten salt finishes the heat storage process and flows into a hot molten salt tank (2), the cold molten salt and the hot molten salt tank are kept at proper molten salt liquid levels when the system is idle through the process of storing energy or releasing energy of the molten salt, and when the system is idle for a long time, heat tracing devices (9) at each position can be opened to avoid solidification of the molten salt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011151484.1A CN112146074A (en) | 2020-10-25 | 2020-10-25 | Fused salt energy storage thermal power frequency modulation and peak shaving system and method |
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| CN202011151484.1A CN112146074A (en) | 2020-10-25 | 2020-10-25 | Fused salt energy storage thermal power frequency modulation and peak shaving system and method |
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Cited By (5)
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| CN113408904A (en) * | 2021-06-21 | 2021-09-17 | 西安热工研究院有限公司 | Fused salt reserve calculation method for deep peak shaving of fused salt heat storage auxiliary thermal power generating unit |
| CN114704815A (en) * | 2022-04-08 | 2022-07-05 | 西安热工研究院有限公司 | Vapor heat storage system |
| CN115234328A (en) * | 2022-08-15 | 2022-10-25 | 西安西热锅炉环保工程有限公司 | Fused salt heat storage deep peak regulation system of generator set and working method thereof |
| CN116718059A (en) * | 2023-08-07 | 2023-09-08 | 山西中能天胜科技有限公司 | Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage |
| CN116845933A (en) * | 2023-09-01 | 2023-10-03 | 山西中能天胜科技有限公司 | Power distribution system based on steam heat exchange coupling electrode heating fused salt |
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| CN114704815A (en) * | 2022-04-08 | 2022-07-05 | 西安热工研究院有限公司 | Vapor heat storage system |
| CN114704815B (en) * | 2022-04-08 | 2023-11-07 | 西安热工研究院有限公司 | Steam heat storage system |
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| CN116718059B (en) * | 2023-08-07 | 2023-10-27 | 山西中能天胜科技有限公司 | Power station peak shaving system and method based on high-capacity high-temperature molten salt energy storage |
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