CN115234322A - Electrode fused salt energy storage steam supply power generation system - Google Patents
Electrode fused salt energy storage steam supply power generation system Download PDFInfo
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- CN115234322A CN115234322A CN202210953645.1A CN202210953645A CN115234322A CN 115234322 A CN115234322 A CN 115234322A CN 202210953645 A CN202210953645 A CN 202210953645A CN 115234322 A CN115234322 A CN 115234322A
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—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 of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
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- 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
- F01K7/34—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 of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/44—Use of steam for feed-water heating and another purpose
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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
Abstract
The invention discloses an electrode molten salt energy storage steam supply power generation system, which comprises: electrode fused salt heat-retaining heat transfer system and supply vapour power generation system, electrode fused salt heat-retaining heat transfer system includes low temperature fused salt jar, electrode fused salt boiler, high temperature fused salt jar and steam generator, and usable new forms of energy abandons the fused salt in the electricity/millet electricity heating electrode fused salt heat-retaining heat transfer system, realizes the heat and stores and with the heat exchange who supplies vapour power generation system, supply vapour power generation system to include steam turbine, low pressure oxygen-eliminating device, high pressure heater, temperature and pressure reducer, generator and main transformer, the superheated steam that usable heat exchange produced provides industrial steam and electric power. The electrode molten salt energy storage steam supply power generation system can absorb new energy and abandon electricity, provide industrial steam, meet the requirements of heat users, and can realize services such as deep peak regulation, peak load, frequency modulation and black start for a power grid.
Description
Technical Field
The invention relates to the technical field of energy storage, and particularly provides an electrode molten salt energy storage steam supply power generation system.
Background
In recent years, new energy such as wind power, photovoltaic power generation and the like in China develops rapidly, and how to realize effective storage and utilization of abandoned/valley power of new energy becomes a problem to be solved urgently.
Disclosure of Invention
In view of this, the invention aims to provide an electrode molten salt energy storage steam supply power generation system to realize effective storage and utilization of new energy abandoned electricity/valley electricity.
The technical scheme provided by the invention is as follows: electrode fused salt energy storage steam supply power generation system includes: the electrode fused salt heat storage and exchange system comprises a low-temperature fused salt tank, an electrode fused salt boiler, a high-temperature fused salt tank and a steam generator, wherein the low-temperature fused salt tank, the electrode fused salt boiler, the high-temperature fused salt tank and the steam generator are sequentially connected through pipelines and realize the circulation of fused salt in the pipelines through a fused salt pump, the steam generator is further provided with a hot feed water inlet and an overheated steam outlet which are connected with the steam supply and generation system, the steam supply and generation system comprises a steam turbine, a low-pressure deaerator, a high-pressure heater, a temperature and pressure reducer, a generator and a main transformer, the steam turbine comprises a steam inlet, an industrial steam outlet, a one-section backheating steam extraction port, a two-section backheating steam extraction port and a three-section backheating steam extraction port, and the steam inlet is connected with the overheated steam outlet of the steam generator, the industrial steam outlet is connected with an industrial steam pipeline, the first medium inlet and the first medium outlet of the high-pressure heater sequentially pass through the first heat recovery steam extraction port, the first medium outlet is connected with the first inlet of the high-pressure deaerator, the second heat recovery steam extraction port is connected with the second inlet of the high-pressure deaerator, the third heat recovery steam extraction port passes through the low-pressure deaerator and is connected with the third inlet of the high-pressure deaerator, the inlet of the low-pressure deaerator is also connected with a water supply pipeline, the outlet of the high-pressure deaerator sequentially passes through the second medium inlet and the second medium outlet of the high-pressure heater and is connected with the hot water supply inlet of the steam generator, the inlet of the temperature reduction pressure reducer is connected with the superheated steam outlet of the steam generator, the outlet of the temperature reduction pressure reducer is connected with the industrial steam pipeline, and the generator is connected with the steam turbine, the steam turbine drives the generator to generate power, and the main transformer is connected with the generator and used for boosting the power generated by the generator and then sending the boosted power to a power grid.
Preferably, the electrode molten salt boiler pass through low temperature molten salt jar fused salt outlet pipe with the low temperature molten salt jar is connected, the high temperature molten salt jar pass through high temperature molten salt jar fused salt inlet pipe with the electrode molten salt boiler is connected, steam generator's hot medium entry pass through high temperature molten salt jar fused salt outlet pipe with the high temperature molten salt jar is connected, steam generator's hot medium export pass through low temperature molten salt jar fused salt inlet pipe with the low temperature molten salt jar is connected.
Preferably, a low-temperature molten salt pump is arranged on the molten salt outlet pipeline of the low-temperature molten salt tank.
Preferably, a high-temperature molten salt pump is arranged on the molten salt outlet pipeline of the high-temperature molten salt tank.
Further preferably, the steam generator consists of a preheater, a steam drum, an evaporator and a superheater.
Preferably, the steam inlet is connected with a superheated steam outlet of the steam generator through a hot steam pipeline, the first regenerative steam extraction port is connected with a first inlet of the high-pressure deaerator through a first regenerative steam extraction pipeline, a first medium inlet of the high-pressure heater, a first medium outlet and a high-pressure heater drain pipeline in sequence, the second regenerative steam extraction port is connected with a second inlet of the high-pressure deaerator through a second regenerative steam extraction pipeline, the third regenerative steam extraction port is connected with a third inlet of the high-pressure deaerator through a third regenerative steam extraction pipeline, the low-pressure deaerator and a relay pipeline in sequence, an outlet of the high-pressure deaerator is connected with a hot water supply inlet of the steam generator through a cold water supply pipeline, a second medium inlet of the high-pressure heater, a second medium outlet and a hot water supply pipeline in sequence, and an inlet of the temperature and pressure reducer is connected with the superheated steam outlet of the steam generator through a superheated steam pipeline.
Further preferably, a relay water pump is arranged on the relay water pipeline.
Further preferably, a feed pump is arranged on the cold feed water pipeline.
Further preferably, an inlet of the temperature and pressure reducing device is provided with a flow regulating valve; and a main steam regulating valve is arranged at the inlet of the steam turbine.
Preferably, the number of the high-pressure heaters is multiple, a plurality of section regenerative steam extraction ports are arranged on the steam turbine, first medium inlets of the high-pressure heaters are connected with the section regenerative steam extraction ports on the steam turbine in a one-to-one correspondence manner, and drain water of each high-pressure heater flows to the first inlet of the high-pressure deaerator from high to low step by step according to pressure.
The electrode molten salt energy storage and steam supply power generation system comprises an electrode molten salt heat storage and exchange system and a steam supply power generation system, and can effectively store and utilize new energy abandoned electricity/valley electricity, wherein the electrode molten salt heat storage and exchange system can utilize the new energy abandoned electricity/valley electricity to heat molten salt in the electrode molten salt heat storage and exchange system to realize heat storage and heat exchange with the steam supply power generation system, superheated steam can be generated by heat exchange, two paths of generated superheated steam go to the place, one path of generated superheated steam can directly provide industrial steam, the other path of generated superheated steam can push a steam turbine to do work, industrial steam and electric power are provided in a cogeneration mode, and simultaneously, regenerative steam extraction and heat of the steam turbine can be effectively utilized by the steam supply power generation system again.
The electrode molten salt energy storage steam supply power generation system provided by the invention can absorb new energy abandoned electricity, provide industrial steam, meet the requirements of heat users, and can realize services such as deep peak regulation, peak load, frequency modulation and black start for a power grid.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
fig. 1 is a schematic structural diagram of an electrode molten salt energy storage steam supply power generation system provided by the invention.
Reference numerals: 1. an electrode molten salt heat storage and exchange system; 1.1, a low-temperature molten salt tank; 1.2, a low-temperature molten salt pump; 1.3, an electrode molten salt boiler; 1.4, a high-temperature molten salt tank; 1.5, a high-temperature molten salt pump; 1.6, a steam generator; 1.11, a molten salt outlet pipeline of the low-temperature molten salt tank; 1.31, a molten salt inlet pipeline of the high-temperature molten salt tank; 1.41, a molten salt outlet pipeline of the high-temperature molten salt tank; 1.61, a molten salt inlet pipeline of a low-temperature molten salt tank; 2. A steam supply power generation system; 2.1, a steam turbine; 2.2, a low-pressure deaerator; 2.3, a relay water pump; 2.4, a high-pressure deaerator; 2.5, a water supply pump; 2.6, a high-pressure heater; 2.7, temperature and pressure reduction; 2.8, a generator; 2.9, a main transformer; 2.11, a superheated steam pipeline; 2.12, industrial steam pipelines; 2.14, a section of regenerative steam extraction pipeline; 2.15, a two-section regenerative steam extraction pipeline; 2.16, three sections of regenerative steam extraction pipelines; 2.21, make-up water pipe; 2.22, a relay water pipeline; 2.41, a cold water supply pipeline; 2.61, a hot water supply pipeline; 2.62, high-pressure heater drain pipe.
Detailed Description
The invention will be further explained with reference to specific embodiments, without limiting the invention.
In order to solve the problem of new energy power generation consumption, as shown in fig. 1, the invention provides an electrode molten salt energy storage steam supply power generation system, which realizes that the new energy abandoned electricity/valley electricity is used for heating molten salt, heat storage and exchange are carried out to generate superheated steam, the generated superheated steam has two paths of places, one path of the superheated steam directly provides industrial steam, and the other path of the superheated steam pushes a steam turbine to do work, and provides the industrial steam and electric power in a cogeneration mode.
As shown in fig. 1, the electrode molten salt energy storage steam supply power generation system comprises: the electrode molten salt heat storage and exchange system 1 comprises a low-temperature molten salt tank 1.1, an electrode molten salt boiler 1.3, a high-temperature molten salt tank 1.4 and a steam generator 1.6, wherein the low-temperature molten salt tank 1.1, the electrode molten salt boiler 1.3, the high-temperature molten salt tank 1.4 and the steam generator 1.6 are sequentially connected through a pipeline and realize the circulation of molten salt in the pipeline through a molten salt pump, the steam generator 1.6 is also provided with a hot feed water inlet and a superheated steam outlet which are connected with the steam supply and power generation system 2, the steam supply and power generation system 2 comprises a steam turbine 2.1, a low-pressure deaerator 2.2, a high-pressure deaerator 2.4, a high-pressure heater 2.6, a temperature and pressure reducer 2.7, a generator 2.8 and a main transformer 2.9, the steam turbine 2.1 comprises a steam inlet, an industrial steam discharge port, a first-stage regenerative steam extraction port, a second-stage regenerative steam extraction port and a third-stage regenerative steam extraction port, the steam inlet is connected with a superheated steam outlet of the steam generator 1.6, the industrial steam outlet is connected with an industrial steam pipeline 2.12, the first section of backheating steam extraction port sequentially passes through a first medium inlet and a first medium outlet of the high-pressure heater 2.6 and is connected with a first inlet of the high-pressure deaerator 2.4, the second section of backheating steam extraction port is connected with a second inlet of the high-pressure deaerator 2.4, the third section of backheating steam extraction port is connected with a third inlet of the high-pressure deaerator 2.4 through the low-pressure deaerator 2.2, an inlet of the low-pressure deaerator 2.2 is further connected with a supplementary water pipeline 2.21, an outlet of the high-pressure deaerator 2.4 sequentially passes through a second medium inlet and a second medium outlet of the high-pressure heater 2.6 and is connected with a hot water supply inlet of the steam generator 1.6, an inlet of the temperature reduction pressure reducer 2.7 is connected with a superheated steam outlet of the steam generator 1.6, the outlet of the temperature and pressure reducing device 2.7 is connected with an industrial steam pipeline 2.12, the generator 2.8 is connected with the steam turbine 2.1, the steam turbine 2.1 drives power generation, the main transformer 2.9 is connected with the generator 2.8 and used for boosting the power generation of the generator 2.8 and then sending the power generation to a power grid, wherein the low-pressure deaerator 2.2 can be replaced by a water supply heater.
As an improvement of the technical solution, as shown in fig. 1, the electrode molten salt boiler 1.3 is connected to the low-temperature molten salt tank 1.1 through a low-temperature molten salt tank molten salt outlet pipeline 1.11, the high-temperature molten salt tank 1.4 is connected to the electrode molten salt boiler 1.3 through a high-temperature molten salt tank molten salt inlet pipeline 1.31, the heat medium inlet of the steam generator 1.6 is connected to the high-temperature molten salt tank 1.4 through a high-temperature molten salt tank molten salt outlet pipeline 1.41, and the heat medium outlet of the steam generator 1.6 is connected to the low-temperature molten salt tank 1.1 through a low-temperature molten salt tank molten salt inlet pipeline 1.61.
As shown in fig. 1, a low-temperature molten salt pump 1.2 is arranged on a molten salt outlet pipeline 1.11 of the low-temperature molten salt tank, and is used for pressurizing low-temperature molten salt in the low-temperature molten salt tank so as to enable the low-temperature molten salt to enter the electrode molten salt boiler.
As shown in fig. 1, a high-temperature molten salt pump 1.5 is arranged on the molten salt outlet pipe 1.41 of the high-temperature molten salt tank, and is used for pressurizing the high-temperature molten salt in the high-temperature molten salt tank, so that the high-temperature molten salt enters the steam generator, and exchanges heat with hot feed water entering the steam generator from the steam supply power generation system to generate superheated steam.
As a technical improvement, the steam generator 1.6 consists of a preheater, a steam drum, an evaporator and a superheater.
As shown in fig. 1, the steam inlet is connected to the superheated steam outlet of the steam generator 1.6 through a superheated steam pipe 2.11, the first regenerative steam extraction port is connected to the first inlet of the high-pressure deaerator 2.4 through a first regenerative steam extraction pipe 2.14, the first medium inlet, the first medium outlet, and the high-pressure steam drain pipe 2.62, the second regenerative steam extraction port is connected to the second inlet of the high-pressure deaerator 2.4 through a second regenerative steam extraction pipe 2.15, the third regenerative steam extraction port is connected to the third inlet of the high-pressure deaerator 2.4 through a third regenerative steam extraction pipe 2.16, the low-pressure deaerator 2.2, and the relay water pipe 2.22, the outlet of the high-pressure deaerator 2.4 is connected to the third inlet of the high-pressure deaerator 2.4 through a cold water supply pipe 2.41, the second medium inlet, the second medium outlet, and the hot water supply pipe 2.61 of the high-pressure deaerator 2.4, and the hot water supply pipe 2.6, and the superheated steam outlet of the superheated steam generator 1.6 is connected to the superheated steam reducer outlet through a hot water supply pipe 2.7.6.
As shown in fig. 1, a relay water pump 2.3 is arranged on the relay water pipeline 2.22, and is used for pressurizing the relay water in the low-pressure deaerator so as to make the relay water enter the high-pressure deaerator.
As shown in fig. 1, a water feed pump 2.5 is arranged on the cold water feed pipe 2.41, and is used for pressurizing cold feed water in the high-pressure deaerator so as to make the cold feed water enter the high-pressure heater.
As an improvement of the technical scheme, an inlet of the temperature and pressure reducing device 2.7 is provided with a flow regulating valve; and a main steam regulating valve is arranged at the inlet of the steam turbine 2.1. Through the coordination control of the flow regulating valve and the main steam regulating valve, the steam turbine generator unit can continuously and reliably operate within the range of 30-100% of rated load under the condition of meeting industrial steam parameters.
As an improvement of the technical scheme, the number of the high-pressure heaters 2.6 is multiple, the steam turbine 2.1 is provided with a plurality of first-stage regenerative steam extraction ports, first medium inlets of the high-pressure heaters 2.6 are connected with the first-stage regenerative steam extraction ports on the steam turbine 2.1 in a one-to-one correspondence manner, and drain water of each high-pressure heater 2.6 flows to the first inlet of the high-pressure deaerator 2.4 in a self-flowing manner step by step from high to low according to pressure.
The specific electrode molten salt heat storage and exchange process of the electrode molten salt energy storage and steam supply power generation system is as follows:
the low-temperature molten salt in a low-temperature molten salt tank 1.1 of the electrode molten salt heat storage and exchange system 1 is pressurized by a low-temperature molten salt pump 1.2, enters an electrode molten salt boiler 1.3 through a low-temperature molten salt tank molten salt outlet pipeline 1.11 and is heated into high-temperature molten salt, and the high-temperature molten salt enters a high-temperature molten salt tank 1.4 through a high-temperature molten salt tank molten salt inlet pipeline 1.31 to realize the flowing, heating and heat storage of the molten salt, preferably, the working temperature of the low-temperature molten salt tank 1.1 is 290-310 ℃;
the high-temperature molten salt in the high-temperature molten salt tank 1.4 of the electrode molten salt heat storage and exchange system 1 is pressurized by a high-temperature molten salt pump 1.5, enters a steam generator 1.6 through a high-temperature molten salt outlet pipeline 1.41 and then is cooled into low-temperature molten salt by hot feed water entering from the steam supply power generation system 2, the low-temperature molten salt enters a low-temperature molten salt tank 1.1 through a low-temperature molten salt inlet pipeline 1.61 to realize flowing, heat release and heat exchange of the molten salt, preferably, the working temperature of the high-temperature molten salt tank 1.4 is 400-565 ℃, wherein the hot feed water entering the steam generator 1.6 is heated into superheated steam by the high-temperature molten salt entering the steam generator 1.6 and then returns to the steam supply power generation system 2 through a hot steam outlet of the steam generator 1.6.
The specific steam supply and power generation process of the electrode molten salt energy storage steam supply and power generation system is as follows:
superheated steam generated by a steam generator 1.6 of the electrode molten salt heat storage and exchange system 1 is divided into two paths, one path of superheated steam enters a temperature and pressure reducer 2.7 through a hot steam pipeline 2.11 for temperature and pressure reduction, and industrial steam is externally provided through an industrial steam pipeline 2.12; the other path of the steam enters a steam turbine 2.1 through a superheated steam pipeline 2.11 to push an impeller to rotate and do work, a generator 2.8 is driven to generate electric power, the electric power is boosted through a main transformer 2.9 and then is sent to a power grid, and the steam which does work is provided with industrial steam through an industrial steam outlet of the steam turbine 2.1.
The first-section regenerative extraction steam of the steam turbine 2.1 enters the high-pressure heater 2.6 through the first-section regenerative extraction steam pipeline 2.14, exchanges heat with feed water entering the high-pressure heater 2.6 from the high-pressure deaerator 2.4, condenses to become the high-pressure heater, drains water, and then enters the high-pressure deaerator 2.4 through the high-pressure heater drainage pipeline 2.62; the two-stage regenerative extraction steam of the steam turbine 2.1 enters a high-pressure deaerator 2.4 through a two-stage regenerative extraction steam pipeline 2.15; the three-stage regenerative extraction steam of the steam turbine 2.1 enters the low-pressure deaerator 2.2 through the three-stage regenerative extraction steam pipeline 2.16.
Make-up water enters the low pressure oxygen-eliminating device 2.2 through make-up water pipe 2.21, after being heated and deoxidization through the pressurization of relay water pump 2.3 after getting into high pressure oxygen-eliminating device 2.4 through relay water pipe 2.22, get into the relay water inside the high pressure oxygen-eliminating device 2.4 through the high pressure oxygen-eliminating device 2.4 heating with deoxidization after the pressurization of feed water pump 2.5 through cold feed water pipe 2.41 entering high pressure heater 2.6, later, get into the steam generator 1.6 of electrode fused salt heat-storage heat-exchange system 1 through hot feed water pipe 2.61 after being heated by one section backheat steam extraction pipe 2.14 entering high pressure heater 2.6 in steam generator 1.6 by high temperature fused salt heating and returning to steam power generation system 2 after being superheated steam.
The invention also provides application of the electrode molten salt energy storage and steam supply power generation system, molten salt in the electrode molten salt heat storage and exchange system in the electrode molten salt energy storage and steam supply power generation system is heated by utilizing the abandoned electricity/valley electricity of new energy, and the heated high-temperature molten salt exchanges heat with the steam supply power generation system in the electrode molten salt energy storage and steam supply power generation system to generate industrial steam and electric power.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. Electrode fused salt energy storage steam supply power generation system, its characterized in that includes: the electrode molten salt heat storage and exchange system (1) comprises a low-temperature molten salt tank (1.1), an electrode molten salt boiler (1.3), a high-temperature molten salt tank (1.4) and a steam generator (1.6), wherein the low-temperature molten salt tank (1.1), the electrode molten salt boiler (1.3), the high-temperature molten salt tank (1.4) and the steam generator (1.6) are sequentially connected through a pipeline and realize circulation of molten salt in the pipeline through a molten salt pump, a hot feed water inlet and an overheated steam outlet which are connected with the steam supply and generation system (2) are further arranged on the steam generator (1.6), the steam supply power generation system (2) comprises a steam turbine (2.1), a low-pressure deaerator (2.2), a high-pressure deaerator (2.4), a high-pressure heater (2.6), a temperature and pressure reducing device (2.7), a generator (2.8) and a main transformer (2.9), wherein the steam turbine (2.1) comprises a steam inlet, an industrial steam outlet, a one-section backheating steam extraction port, a two-section backheating steam extraction port and a three-section backheating steam extraction port, the steam inlet is connected with a superheated steam outlet of the steam generator (1.6), the industrial steam outlet is connected with an industrial steam pipeline (2.12), the one-section backheating steam extraction port sequentially passes through a first medium inlet and a first medium outlet of the high-pressure heater (2.6) and is connected with a first inlet of the high-pressure deaerator (2.4), and the two-section backheating steam extraction port is connected with a second inlet of the high-pressure deaerator (2.4), the three-section backheating steam extraction opening is connected with a third inlet of the high-pressure deaerator (2.4) through the low-pressure deaerator (2.2), an inlet of the low-pressure deaerator (2.2) is further connected with a makeup water pipeline (2.21), an outlet of the high-pressure deaerator (2.4) is sequentially connected with a hot water inlet of the steam generator (1.6) through a second medium inlet and a second medium outlet of the high-pressure heater (2.6), an inlet of the temperature and pressure reducing device (2.7) is connected with a superheated steam outlet of the steam generator (1.6), an outlet of the temperature and pressure reducing device (2.7) is connected with an industrial steam pipeline (2.12), the generator (2.8) is connected with the steam turbine (2.1), the steam turbine (2.1) is driven to generate power, and the main transformer (2.9) is connected with the generator (2.8) and is used for sending the generated power of the generator (2.8) into a power grid after the power generation and the voltage boosting.
2. The electrode molten salt energy storage steam supply power generation system according to claim 1, characterized in that: electrode fused salt boiler (1.3) through low temperature fused salt jar fused salt export pipeline (1.11) with low temperature fused salt jar (1.1) is connected, high temperature fused salt jar (1.4) through high temperature fused salt jar fused salt import pipeline (1.31) with electrode fused salt boiler (1.3) is connected, the hot medium entry of steam generator (1.6) through high temperature fused salt jar fused salt export pipeline (1.41) with high temperature fused salt jar (1.4) is connected, the hot medium export of steam generator (1.6) through low temperature fused salt jar fused salt import pipeline (1.61) with low temperature fused salt jar (1.1) is connected.
3. The electrode molten salt energy storage steam supply power generation system according to claim 2, characterized in that: and a low-temperature molten salt pump (1.2) is arranged on the molten salt outlet pipeline (1.11) of the low-temperature molten salt tank.
4. The electrode molten salt energy storage steam supply power generation system according to claim 2, characterized in that: and a high-temperature molten salt pump (1.5) is arranged on the molten salt outlet pipeline (1.41) of the high-temperature molten salt tank.
5. The electrode molten salt energy storage steam supply power generation system according to claim 1, characterized in that: the steam generator (1.6) consists of a preheater, a steam drum, an evaporator and a superheater.
6. The electrode molten salt energy storage steam supply power generation system according to claim 1, characterized in that: the steam inlet is connected with the superheated steam outlet of the steam generator (1.6) through a superheated steam pipeline (2.11), one section of backheating steam extraction is connected with the first inlet of the high-pressure deaerator (2.4) through one section of backheating steam extraction pipeline (2.14), the first medium inlet, the first medium outlet and the high-pressure heater drain pipeline (2.62) of the high-pressure heater (2.6), the second section of backheating steam extraction is connected with the second inlet of the high-pressure deaerator (2.4) through the second section of backheating steam extraction pipeline (2.15), the third section of backheating steam extraction is connected with the third inlet of the high-pressure deaerator (2.4) through the three sections of backheating steam extraction pipeline (2.16), the low-pressure deaerator (2.2) and the relay pipeline (2.22), the outlet of the high-pressure deaerator (2.4) is connected with the superheated steam outlet of the superheated steam generator (1.6) through the superheated steam inlet (2.41), the second medium inlet and the hot water supply pipeline (2.6).
7. The electrode molten salt energy storage steam supply power generation system according to claim 6, characterized in that: and a relay water pump (2.3) is arranged on the relay water pipeline (2.22).
8. The electrode molten salt energy storage steam supply power generation system according to claim 6, characterized in that: and a water feeding pump (2.5) is arranged on the cold water feeding pipeline (2.41).
9. The electrode molten salt energy storage steam supply power generation system according to claim 1, characterized in that: the inlet of the temperature and pressure reducing device (2.7) is provided with a flow regulating valve; and a main steam regulating valve is arranged at the inlet of the steam turbine (2.1).
10. The electrode molten salt energy storage steam supply power generation system according to claim 1, characterized in that: the high-pressure deaerator is characterized in that the number of the high-pressure heaters (2.6) is multiple, a plurality of section regenerative steam extraction ports are arranged on the steam turbine (2.1), a first medium inlet of each high-pressure heater (2.6) is connected with the section regenerative steam extraction ports on the steam turbine (2.1) in a one-to-one correspondence mode, and drainage of each high-pressure heater (2.6) flows to the first inlet of the high-pressure deaerator (2.4) automatically step by step from high to low according to pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210953645.1A CN115234322A (en) | 2022-08-10 | 2022-08-10 | Electrode fused salt energy storage steam supply power generation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116734230A (en) * | 2023-08-14 | 2023-09-12 | 西安热工研究院有限公司 | Fused salt steam storage system for improving safety of high-temperature gas cooled reactor generator set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116734230A (en) * | 2023-08-14 | 2023-09-12 | 西安热工研究院有限公司 | Fused salt steam storage system for improving safety of high-temperature gas cooled reactor generator set |
| CN116734230B (en) * | 2023-08-14 | 2024-01-23 | 西安热工研究院有限公司 | Fused salt steam storage system for improving safety of high-temperature gas cooled reactor generator set |
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