CN219494049U - Fused salt heat accumulation power generation peak regulation system - Google Patents
Fused salt heat accumulation power generation peak regulation system Download PDFInfo
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- CN219494049U CN219494049U CN202320953544.4U CN202320953544U CN219494049U CN 219494049 U CN219494049 U CN 219494049U CN 202320953544 U CN202320953544 U CN 202320953544U CN 219494049 U CN219494049 U CN 219494049U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The utility model provides a fused salt heat storage power generation peak shaving system which comprises a fused salt heat storage system and a power generation system, wherein the fused salt heat storage system comprises a high-temperature fused salt tank, a heat exchanger, a low-temperature fused salt tank and an electric heater which are sequentially connected, and the power generation system is connected to the heat exchanger. The system is used for heating molten salt by wind power photovoltaic power generation in a low electricity consumption period, storing heat, heating water by using high-temperature molten salt to generate high-temperature high-pressure steam in a high electricity consumption peak period, pushing a steam turbine to do work, converting stored heat into electric energy for output, effectively absorbing power generation and light emission to realize large-scale storage and scheduling of non-water renewable energy power, constructing a comprehensive power generation system with complementary renewable energy power generation and large-scale energy storage system, realizing peak clipping and valley filling of power, and stably outputting a load curve according to requirements. And the recycling of the molten salt can also keep environment-friendly and avoid pollution.
Description
Technical Field
The utility model relates to the technical field of power generation equipment, in particular to a fused salt heat storage power generation peak regulation system.
Background
In the prior art, for the application of fused salt heat accumulation, a heat source is mainly from solar photo-heat, and because solar energy has the characteristics of intermittence, low heat flow and the like, a plurality of technical bottlenecks exist in the market and large-scale utilization of the solar energy. Meanwhile, the solar thermal power station has the key problem of overhigh cost and overlarge occupied area in popularization and utilization, and the cost of solar thermal power generation is about several times of the cost of fossil energy thermal power generation. Therefore, the market of solar thermal power generation needs technical personnel to reduce the power generation cost by adopting technical means on one hand, and on the other hand, the government is required to formulate reasonable renewable energy power generation price and other policy specifications.
The system has the advantages that the fused salt heat storage heat source comes from the heat generated by an electric boiler in the period of low-valley electricity or wind-abandoning and light-abandoning electricity, the installation power of an unstable power supply such as wind power and photovoltaic in China is increased more and more, the installation capacity of a coal-fired power generator is limited, the unstable and discontinuous power supply output in the whole power grid is increased greatly year by year, and the situation firstly causes great threat to the safe operation of the power grid; secondly, when the load of the electricity utilization side is increased, the power of the electricity generation side cannot be kept up, so that the power supply capacity is insufficient. The current countermeasure is to utilize peak shaving of coal-fired power plants or a large number of newly added wind photovoltaic installation machines. However, when the wind power and photovoltaic installed capacity exceeds the power grid regulation capacity, the wind power and photovoltaic installed capacity are forced to reject the wind and reject the light. In order to reduce the phenomena of wind and light discarding, various energy storage modes such as a battery, pumping water, compressed air and the like are proposed to absorb the wind and light discarding. However, the battery has problems of long service life, safety and the like in large-scale energy storage technology, and meanwhile, the energy storage cost is still extremely high, so that the battery does not have large-scale application conditions. The pumped storage cost is lower, the technology is mature, but the construction site is limited by water resources and geographical conditions, and the popularization and application are limited. The compressed air energy storage also needs the resource conditions such as rock caves and the like to have application value.
Disclosure of Invention
The utility model aims to provide a fused salt heat storage power generation peak shaving system, so as to solve the problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a fused salt heat accumulation electricity generation peak shaving system, includes fused salt heat accumulation system and power generation system, fused salt heat accumulation system is including the high temperature molten salt jar, heat exchanger, low temperature molten salt jar and the electric heater that link to each other in order, power generation system connects on the heat exchanger, high temperature molten salt jar with be provided with governing valve A between the low temperature molten salt jar, governing valve A with the heat exchanger is parallelly connected.
Preferably, a regulating valve B is arranged between the high-temperature molten salt tank and the heat exchanger.
Preferably, the outlets of the high-temperature molten salt tank and the low-temperature molten salt tank are respectively provided with an exothermic molten salt pump and a heat-accumulating molten salt pump.
Preferably, the heat exchanger adopts a fused salt and water heat exchanger.
Preferably, the power generation system comprises a steam turbine, a condenser and a circulating pump which are sequentially connected, the steam turbine and the circulating pump are connected with an air outlet and an air inlet of the heat exchanger, and a generator is arranged on the steam turbine.
The beneficial effects of the utility model are as follows:
the utility model provides a fused salt heat storage power generation peak regulation system, which is used for heating fused salt by using wind power photovoltaic power generation waste in a low electricity consumption valley period, storing heat, heating water supply by using high-temperature fused salt to generate high-temperature high-pressure steam in a high electricity consumption peak period, pushing a steam turbine to apply work, converting stored heat into electric energy to output, effectively absorbing waste wind and waste light to realize large-scale storage and scheduling of non-aqueous renewable energy power, constructing a comprehensive power generation system with complementary renewable energy power generation and large-scale energy storage system, realizing peak clipping and valley filling of the power, and stably outputting according to a load curve. And the recycling of the molten salt can also keep environment-friendly and avoid pollution.
Drawings
Fig. 1 is a schematic diagram of the molten salt heat storage power generation peak shaving system provided in example 1;
icon: 1-a high-temperature molten salt storage tank; 2-exothermic molten salt pump; 3-molten salt and water heat exchanger; 4-a steam turbine; a 5-generator; 6 a condenser; 7-a circulation pump; 8-a low-temperature salt melting tank; 9, a heat accumulating molten salt pump; 10-an electric heater; 11-regulating valve a; 12-regulating valve B.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description is presented by way of example only and is not intended to limit the utility model.
Example 1
The embodiment provides a fused salt heat accumulation power generation peak regulation system, the schematic diagram is shown in fig. 1, the system comprises a fused salt heat accumulation system and a power generation system, the fused salt heat accumulation system comprises a high-temperature fused salt tank, a heat exchanger, a low-temperature fused salt tank, a regulating valve B and an electric heater which are sequentially connected through pipelines, and the power generation system is connected to the heat exchanger.
The molten salt heat storage system is provided with a regulating valve A, and the regulating valve A is connected between the high-temperature molten salt tank and the low-temperature molten salt tank in parallel and serves as a bypass regulating switch.
The outlets of the high-temperature molten salt tank and the low-temperature molten salt tank in the embodiment are respectively provided with an exothermic molten salt pump and a heat storage molten salt pump, and the switching process of the high-temperature molten salt tank and the low-temperature molten salt tank is controlled.
The real-time rapid adjustment of the molten salt heating power can be realized by adjusting the power of the heat storage molten salt pump and the electric heating power;
the power of the exothermic molten salt pump and the outlet regulating valve B are regulated, so that the generation power can be regulated.
The power generation system in this embodiment includes steam turbine, condenser and the circulating pump that link to each other in proper order, the steam turbine with the circulating pump is connected gas outlet and the air inlet of heat exchanger are provided with the generator on the steam turbine.
The heat exchanger in this embodiment is a molten salt heat exchanger or a water heat exchanger.
The use principle is as follows:
when the fused salt heat storage power generation peak shaving system is adopted, the electric power is used for heating fused salt by the wind power photovoltaic power generation waste in the electricity consumption valley time period, the regulating valve B is closed, and the high-temperature fused salt tank and the low-temperature fused salt tank are adopted for heat storage;
in the electricity consumption peak time period, a high-temperature molten salt tank and a low-temperature molten salt tank are adopted for power generation, a regulating valve A and a regulating valve B are opened for regulation, and the magnitude of exothermic power generation is controlled by regulating a A, B valve. When the regulating valve A is opened, the regulating valve B is small, and the exothermic power generation is small. The regulating valve A is small in opening, the regulating valve B is large, and the exothermic power generation is large. The high-temperature molten salt is utilized to heat the molten salt and the water heat exchanger, so that high-temperature and high-pressure steam is generated, the steam turbine is driven to do work, and the generator converts stored heat into electric energy to be output.
By adopting the technical scheme disclosed by the utility model, the following beneficial effects are obtained:
the utility model provides a fused salt heat storage power generation peak regulation system, which is used for heating fused salt by using wind power photovoltaic power generation waste in a low electricity consumption valley period, storing heat, heating water supply by using high-temperature fused salt to generate high-temperature high-pressure steam in a high electricity consumption peak period, pushing a steam turbine to apply work, converting stored heat into electric energy to output, effectively absorbing waste wind and waste light to realize large-scale storage and scheduling of non-aqueous renewable energy power, constructing a comprehensive power generation system with complementary renewable energy power generation and large-scale energy storage system, realizing peak clipping and valley filling of the power, and stably outputting according to a load curve. And the recycling of the molten salt can also keep environment-friendly and avoid pollution.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which is also intended to be covered by the present utility model.
Claims (5)
1. The utility model provides a fused salt heat accumulation electricity generation peak shaving system, its characterized in that includes fused salt heat accumulation system and power generation system, fused salt heat accumulation system is including high temperature molten salt jar, heat exchanger, low temperature molten salt jar and the electric heater that link to each other in order, power generation system connects on the heat exchanger, high temperature molten salt jar with be provided with governing valve A between the low temperature molten salt jar, governing valve A with the heat exchanger is parallelly connected.
2. The molten salt heat storage power generation peak shaving system according to claim 1, wherein a regulating valve B is arranged between the high-temperature molten salt tank and the heat exchanger.
3. The molten salt heat storage power generation peak shaving system according to claim 1, wherein an exothermic molten salt pump and a heat storage molten salt pump are respectively arranged at the outlets of the high-temperature molten salt tank and the low-temperature molten salt tank.
4. The molten salt heat storage power generation peak shaving system according to claim 1, wherein the heat exchanger is a molten salt and water heat exchanger.
5. The fused salt heat storage power generation peak shaving system according to claim 1, wherein the power generation system comprises a steam turbine, a condenser and a circulating pump which are sequentially connected, the steam turbine and the circulating pump are connected with an air outlet and an air inlet of the heat exchanger, and a generator is arranged on the steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320953544.4U CN219494049U (en) | 2023-04-21 | 2023-04-21 | Fused salt heat accumulation power generation peak regulation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320953544.4U CN219494049U (en) | 2023-04-21 | 2023-04-21 | Fused salt heat accumulation power generation peak regulation system |
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| CN219494049U true CN219494049U (en) | 2023-08-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117072268A (en) * | 2023-10-12 | 2023-11-17 | 浙江博旭新能源科技有限公司 | Comprehensive utilization energy storage system and method for LNG cold energy and compressor inter-stage cooling water |
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2023
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117072268A (en) * | 2023-10-12 | 2023-11-17 | 浙江博旭新能源科技有限公司 | Comprehensive utilization energy storage system and method for LNG cold energy and compressor inter-stage cooling water |
| CN117072268B (en) * | 2023-10-12 | 2024-01-19 | 浙江博旭新能源科技有限公司 | Comprehensive utilization energy storage system and method for LNG cold energy and compressor inter-stage cooling water |
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