WO2024037027A1 - 能量梯级利用的光煤互补汽轮机系统及发电系统 - Google Patents

能量梯级利用的光煤互补汽轮机系统及发电系统 Download PDF

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Publication number
WO2024037027A1
WO2024037027A1 PCT/CN2023/090449 CN2023090449W WO2024037027A1 WO 2024037027 A1 WO2024037027 A1 WO 2024037027A1 CN 2023090449 W CN2023090449 W CN 2023090449W WO 2024037027 A1 WO2024037027 A1 WO 2024037027A1
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WIPO (PCT)
Prior art keywords
steam
low
inlet
outlet
pressure
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PCT/CN2023/090449
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English (en)
French (fr)
Inventor
杨庆川
余小兵
杨利
刘学亮
郑天帅
刘永林
王伟
顾雨恒
薛晨晰
王东晔
林轶
赵若昱
李保垒
Original Assignee
西安热工研究院有限公司
西安西热节能技术有限公司
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Publication of WO2024037027A1 publication Critical patent/WO2024037027A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
    • F03G6/067—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
    • 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
    • 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
    • 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
    • F01K7/40—Use of two or more feed-water heaters in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/071—Devices for producing mechanical power from solar energy with energy storage devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00—Devices for producing mechanical power from solar energy
    • F03G6/098—Components, parts or details
    • F03G6/108—Components, parts or details of the heat transfer system
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Definitions

  • the present disclosure belongs to the technical field of steam turbine power generation, and specifically relates to a light-coal complementary steam turbine system and a power generation system using energy cascades.
  • a steam turbine is a rotating steam power device.
  • the steam turbine is one of the main equipment for modern thermal power generation.
  • the steam turbine power generation system in the related art uses the steam turbine to produce work and then drives the engine to generate electricity.
  • the steam turbine power generation system usually uses coal as fuel to generate electricity, resulting in a large amount of pollutant emissions and high power generation costs in the steam turbine power generation system.
  • the present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent.
  • embodiments of the present disclosure propose a steam turbine system, which has the advantages of low cost, low energy consumption, and environmental protection.
  • the light-coal complementary steam turbine system for energy cascade utilization includes a first medium tank, a second medium tank, a light and heat system, a first heat exchange gas, a second heat exchanger, a steam generating device, a steam turbine and a heat recovery device. system.
  • the first medium tank has a first medium inlet and a first medium outlet
  • the second medium tank has a second medium inlet and a second medium outlet;
  • the photothermal system has a third medium inlet and a third medium outlet, the third medium outlet is connected to the first medium inlet, and the third medium inlet is connected to the second outlet;
  • the first heat exchanger has a first heat-absorbing side inlet, a first heat-absorbing side outlet, a first heat-releasing side inlet and a first heat-releasing side outlet, and the first heat-releasing side inlet is connected to the first medium
  • the exits are connected;
  • the second heat exchanger has a second heat-absorbing side inlet, a second heat-absorbing side outlet, a second heat-releasing side inlet and a second heat-releasing side outlet, and the second heat-releasing side outlet is connected to the second medium
  • the inlets are connected, and the second heat release side inlet is connected to the first heat release side outlet;
  • the steam generating device has a first water inlet and a first steam outlet;
  • the steam turbine includes a high-pressure cylinder and a medium-pressure cylinder.
  • the high-pressure cylinder has a high-pressure steam inlet and a high-pressure steam outlet.
  • the high-pressure steam inlet is connected to the first steam outlet, and the high-pressure steam outlet is connected to the first heat absorber.
  • the side entrances are connected;
  • the medium-pressure cylinder has a medium-pressure steam inlet and a medium-pressure steam outlet, and the medium-pressure steam inlet is connected to the first heat-absorbing side outlet;
  • the heat recovery system includes a high-pressure adding system, the high-adding system has a first high-adding channel, one end of the first high-adding channel is connected to the medium-pressure cylinder, and the other end of the first high-adding channel Connected to the first water inlet, the first high-gauge channel has a first inlet and a second outlet, the first inlet is connected to the second heat-absorbing side outlet, and the first outlet is connected to the second heat-absorbing side outlet. The two heat-absorbing side outlets are connected.
  • the light-coal complementary steam turbine system of the embodiment of the present disclosure uses a light-heat system to replace the steam generating device to heat the cold reheated steam, thereby greatly reducing the fuel consumed by the steam generating device; on the other hand,
  • the photothermal system is used to heat the liquid water entering the steam generating device, further reducing the fuel consumption required for the steam generating device to generate steam.
  • the light-coal complementary steam turbine system of the embodiment of the present disclosure reduces the amount of fuel consumed by the steam generating device, saves costs, and also reduces the emission of pollutants generated by burning fuel.
  • the energy cascade utilization light-coal complementary steam turbine system of the embodiment of the present disclosure further includes:
  • the first pipeline has one end connected to the first medium outlet and the other end of the first pipeline connected to the first heat release side inlet.
  • the second pipeline has one end connected to the second medium inlet and the other end of the second pipeline connected to the second heat release side outlet.
  • Third pipeline One end of the third pipeline is connected to the first heat release side outlet, and the other end of the third pipeline is connected to the second heat release side inlet.
  • the light-coal complementary steam turbine system for energy cascade utilization of the embodiments of the present disclosure further includes a low-pressure cylinder having a low-pressure steam inlet and a low-pressure steam outlet, and the medium-pressure steam outlet is connected to the low-pressure steam inlet. connected.
  • the energy cascade utilization light-coal complementary steam turbine system of the embodiment of the present disclosure further includes a condensing device and a deaerator, the condensing device has a first condensation inlet and a first condensation outlet, the deaerator has A first deoxygenation inlet and a first deoxygenation outlet, the first condensation inlet is connected to the low-pressure steam outlet, the first condensation outlet is connected to the first deoxygenation inlet, and the first deoxygenation outlet is connected to The first water inlet is connected.
  • the heat recovery system also includes a low-heating system
  • One end of the first high-adding channel is connected to the first deaeration outlet, and the other end of the first high-adding channel is connected to the first water inlet;
  • the high-pressure adding system also has a second high-pressure adding channel.
  • One end of the second high-pressure adding channel is connected to the first deoxygenation outlet, and the other end of the second high-pressure adding channel is connected to the high-pressure cylinder and the middle pressure cylinder. At least one of the pressure cylinders is connected;
  • the low-adding system has a first low-adding channel, one end of the first low-adding channel is connected to the first condensation outlet, and the other end of the first low-adding channel is connected to the first deoxygenation inlet;
  • the condensation device also has a second condensation inlet
  • the low-pressure adding system also has a second low-adding channel.
  • One end of the second low-adding channel is connected to the second condensation inlet, and the other end of the second low-adding channel Connected to the low pressure cylinder.
  • the high plus system includes:
  • a first high-adding device the first high-adding device has a first high-adding pipeline, one end of the first high-adding pipeline is connected to the first deoxygenation outlet;
  • the second high-adding device has a second high-adding pipeline, one end of the second high-adding pipeline is connected to the other end of the first high-adding pipeline;
  • a third high-pressure adding device has a third high-pressure adding pipeline, one end of the third high-pressure adding pipeline is connected to the other end of the second high-pressure adding pipeline, the third high-pressure adding pipeline
  • the other end of the high-adding pipeline is connected to the first water inlet, and the chamber of the first high-adding pipeline, the chamber of the second high-adding pipeline, and the chamber of the third high-adding pipeline Connect in sequence to form the first high-added channel;
  • the deaerator also has a second deaerator outlet
  • the first high-adding steam device also has a first high-adding steam inlet and a first high-adding steam outlet, and the first high-adding steam outlet is connected with the second high-adding steam outlet.
  • the oxygen outlet is connected
  • the second high-adding steam device also has a second high-adding steam inlet and a second high-adding steam outlet, and the second high-adding steam outlet is connected to the first high-adding steam inlet,
  • the third high-adding steam device also has a third high-adding steam inlet and a third high-adding steam outlet.
  • the third high-adding steam outlet is connected to the second high-adding steam inlet.
  • the third high-adding steam inlet connected to one of the high pressure cylinder and the medium pressure cylinder,
  • the second high-pressure adding device also has a fourth high-pressure adding steam inlet, and the fourth high-adding steam inlet is connected to one of the high-pressure cylinder and the medium-pressure cylinder;
  • the first high-pressure steam inlet also has a fifth high-pressure steam inlet, and the fifth high-pressure steam inlet is connected to one of the high-pressure cylinder and the medium-pressure cylinder.
  • the low-plus system includes:
  • a first low-adding device the first low-adding device has a first low-adding pipeline, one end of the first low-adding pipeline is connected to the first condensation outlet;
  • the second low-adding device has a second low-adding pipeline, one end of the second low-adding pipeline is connected to the other end of the first low-adding pipeline;
  • a third low-adding device has a third low-adding pipeline, one end of the third low-adding pipeline is connected to the other end of the second low-adding pipeline;
  • a fourth low-adding device has a fourth low-adding pipeline, one end of the fourth low-adding pipeline is connected to the other end of the third low-adding pipeline, the fourth low-adding pipeline
  • the other end of the adding pipeline is connected to the first deoxygenation inlet; the chamber of the first low adding pipeline, the chamber of the second low adding pipeline, and the cavity of the third low adding pipeline
  • the chamber and the chamber of the fourth low-plus pipeline are connected in sequence to form the first low-plus channel
  • the first low-adding steam device also has a first low-adding steam inlet and a first low-adding steam outlet, and the first low-adding steam outlet is connected to the second condensation inlet,
  • the second low-adding steam device also has a second low-adding steam inlet and a second low-adding steam outlet, and the second low-adding steam outlet is connected to the first low-adding steam inlet,
  • the third low-adding steam device also has a third low-adding steam inlet and a third low-adding steam outlet, and the third low-adding steam outlet is connected to the second low-adding steam inlet,
  • the fourth low-adding steam device also has a fourth low-adding steam inlet and a fourth low-adding steam outlet.
  • the fourth low-adding steam outlet is connected to the third low-adding steam inlet.
  • the fourth low-adding steam inlet is connected to the third low-adding steam inlet.
  • the low pressure cylinders are connected,
  • the third low-pressure adding device also has a fifth low-pressure adding steam inlet, and the fifth low-pressure adding steam inlet is connected to the low-pressure cylinder,
  • the second low-pressure steam inlet also has a sixth low-pressure steam inlet, and the sixth low-pressure steam inlet is connected to the low-pressure cylinder,
  • the first low-pressure steam inlet also has a seventh low-pressure steam inlet, and the seventh low-pressure steam inlet is connected with the low-pressure cylinder.
  • the steam generating device includes:
  • a steam generator having the first water inlet, the third steam outlet and the fourth steam outlet;
  • the first steam heater includes a first heating inlet and a first heating outlet.
  • the first heating inlet is connected to the third steam outlet.
  • the first heating outlet is connected to the first heating outlet. Steam outlet connection;
  • the second steam heater includes a second heating inlet and a second heating outlet.
  • the second heating inlet is connected to the fourth steam outlet.
  • the second heating outlet is connected to the first heating outlet.
  • the steam outlet is connected.
  • the deaerator further has a third deaeration outlet, and the third deaeration inlet is connected to the medium-pressure cylinder.
  • An embodiment of the present disclosure also provides a power generation system.
  • the power generation system includes a generator and a steam turbine system.
  • the steam turbine system is the steam turbine system described in any of the above embodiments.
  • the power generation system of the embodiment of the present disclosure greatly reduces the amount of fuel required by the steam generation device by configuring the light-coal complementary steam turbine system of the above embodiment, which not only saves the cost of power generation, but also reduces the emission of pollutants generated by power generation. .
  • the power generation system of the embodiment of the present disclosure has the advantages of low cost, low energy consumption and environmental protection.
  • Figure 1 is a schematic structural diagram of a light-coal complementary steam turbine system with energy cascade utilization according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of the steam generation device in the light-coal complementary steam turbine system with energy cascade utilization according to the embodiment of the present disclosure.
  • the first heat exchanger 201.
  • Second heat exchanger 501, second heat-absorbing side inlet; 502, second heat-absorbing side outlet; 503, second heat-releasing side inlet; 504, second heat-releasing side outlet;
  • the first medium tank 61.
  • the first medium inlet 62.
  • Second medium tank 71. Second medium inlet; 72. Second medium outlet;
  • the first high-altitude channel 90111. The first entrance; 90112. The first exit; 9012. The second high-altitude channel;
  • the first high-adding device 90131.
  • the first high-adding pipeline 90132.
  • the first high-adding steam inlet 90133.
  • the first high-adding steam outlet 90134.
  • the second high-adding device 90141.
  • the second high-adding pipeline 90142.
  • the second high-adding steam inlet 90143.
  • the third high-pressure adding device 90151.
  • the third high-pressure adding pipeline 90152.
  • the first low-adding device 90231.
  • the first low-adding pipeline 90232.
  • the first low-adding steam inlet 90233.
  • the first low-adding steam outlet 90234.
  • the second low-adding device 90241.
  • the second low-adding pipeline 90242.
  • the second low-adding steam inlet 90243.
  • the third low adding device 90251.
  • the third low adding pipeline 90252.
  • the fourth low-adding device 90261.
  • the fourth low-adding pipeline 90262.
  • the solar-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure includes a first medium tank 6, a second medium tank 7, a photothermal system 1, a first heat exchange gas, a second heat exchanger Heater 5, steam generating device 3, steam turbine 4 and heat recovery system 9.
  • the first medium tank 6 has a first medium inlet 61 and a first medium outlet 62;
  • the second medium tank 7 has a second medium inlet 71 and a second medium outlet 72;
  • the photothermal system 1 is used to convert solar energy into thermal energy.
  • the photothermal system 1 has a third medium inlet 101 and a third medium outlet 102.
  • the third medium outlet 102 is connected to the first medium inlet 61, and the third medium inlet 101 is connected to the second medium inlet 102.
  • the medium outlet 72 is connected.
  • the first heat exchanger 2 has a first heat-absorbing side inlet 201, a first heat-absorbing side outlet 202, a first heat-releasing side inlet 203 and a first heat-releasing side outlet 204.
  • the first heat-releasing side inlet 203 is connected with the first medium. Exit 62 is connected;
  • the second heat exchanger 5 has a second heat-absorbing side inlet 501, a second heat-absorbing side outlet 502, a second heat-releasing side inlet 503, and a second heat-releasing side outlet 504.
  • the second heat-radiating side outlet 504 is connected to the second medium.
  • the inlet 71 is connected, and the second heat releasing side inlet 503 is connected with the first heat releasing side outlet 204;
  • the steam generating device 3 is used to evaporate liquid water into steam.
  • the steam generating device 3 has a first water inlet 31 and a first steam outlet 32 .
  • the steam turbine 4 includes a high-pressure cylinder 401 and a medium-pressure cylinder 402.
  • the high-pressure cylinder 401 has a high-pressure steam inlet 4011 and a high-pressure steam outlet 4012.
  • the high-pressure steam inlet 4011 is connected to the first steam outlet 32, and the high-pressure steam outlet 4012 is connected to the first heat-absorbing side inlet 201. connected.
  • the medium-pressure cylinder 402 has a medium-pressure steam inlet 4021 and a medium-pressure steam outlet 4022.
  • the medium-pressure steam inlet 4021 is connected to the first heat-absorbing side outlet 202.
  • the heat recovery system 9 includes a high heating system 901.
  • the high heating system 901 has a first high heating passage 9011. One end of the first high heating passage 9011 is connected to the medium pressure cylinder 402, and the other end of the first high heating passage 9011 is connected to the first high heating passage 9011.
  • the water inlet 31 is connected.
  • the first high-gauge channel 9011 has a first inlet 90111 and a first outlet 90112. The first inlet 90111 is connected to the second heat-absorbing side outlet 502, and the first outlet 90112 is connected to the second heat-absorbing side outlet 502.
  • the main steam After the main steam is discharged from the steam generating device 3 through the first steam outlet 32, the main steam enters the steam turbine through the high-pressure steam inlet. 4 does work in the high-pressure cylinder 401, and the main steam forms cold reheat steam after doing work in the high-pressure chamber and is discharged from the high-pressure steam outlet 4012; the cold reheat steam discharged from the high-pressure steam outlet 4012 passes through the first heat exchanger 2
  • the endothermic side inlet 201 enters the first heat exchanger 2, causing the cold reheat steam to exchange heat with the medium heated by the photothermal system 1 to form hot reheat steam.
  • the hot reheat steam passes through the first endothermic side outlet 202. It is discharged and enters the medium-pressure cylinder 402 through the medium-pressure steam inlet 4021 to perform work.
  • the liquid water in the first high-heating channel 9011 of the high-heating system 901 of the heat recovery system 9 After the liquid water in the first high-heating channel 9011 of the high-heating system 901 of the heat recovery system 9 is discharged from the first outlet 90112, it enters the second heat exchanger 5 through the second heat-absorbing side inlet 501 for heat exchange and temperature rise. After the liquid water is discharged from the second heat-absorbing side outlet 502, it enters the first high-pressure passage 9011 through the first inlet 90111, and then enters the steam generating device 3 through the first water inlet 31 to form main steam.
  • the medium heated by the light energy system is discharged from the third medium outlet 102, enters the first medium tank 6 through the first medium inlet 61, and then is discharged through the first medium outlet 62 into the first heat exchanger 2 for cold reheating.
  • the steam performs heat exchange, and the heat-exchanged medium is discharged from the first heat release side outlet 204 and then enters the second heat exchanger 5 through the second heat release side inlet 503 and is discharged from the first high heat exchanger channel 9011 into the second heat exchanger.
  • the liquid water in the heater 5 performs heat exchange to heat the liquid water. After heat exchange
  • the medium enters the second medium tank 7 through the second medium inlet 71 and is discharged through the second medium outlet 72, and then enters the photothermal system 1 through the third medium inlet 101 for reheating.
  • the steam turbine system in the related art includes a boiler and a steam turbine 4.
  • the steam turbine 4 includes an intermediate pressure cylinder 402 and a high pressure cylinder 401.
  • water enters the boiler for heat treatment to form high-temperature and high-pressure main steam.
  • the main steam enters the high-pressure cylinder 401 and performs work to form cold reheat steam.
  • the cold reheat steam needs to enter the boiler again for heating to form
  • the hot reheated steam is used for the medium pressure cylinder 402 to do work. That is to say, the boiler not only needs to heat water to form high-temperature and high-pressure main steam, but also needs to reheat the cold reheat steam. Therefore, the boiler needs to consume more fuel when heating the cold reheat steam and water, which leads to related technologies.
  • the steam turbine 4 system in China emits more pollutants and is expensive to use.
  • the solar-coal complementary steam turbine system 100 with energy cascade utilization in the embodiment of the present disclosure uses the solar thermal system 1 to replace the steam generating device 3 to heat the cold reheat steam, so that the heat of the fuel that the steam generating device 3 needs to consume is reduced.
  • the photothermal system 1 is used to heat the liquid water entering the steam generating device 3, further reducing the fuel consumed by the steam generating device 3, which not only saves costs, but also reduces the pollution generated by burning fuel. emission.
  • the solar-coal complementary steam turbine system 100 of the embodiment of the present disclosure can achieve a high degree of complementarity between tower solar thermal and thermal power unit systems, significantly reducing carbon emissions.
  • Intermediate reheating (the reheat steam flow rate under THA working condition is 1422.38t/h) is used as an example to calculate.
  • the boiler heat consumption can be saved by 862.1GJ/h. Calculated based on the boiler thermal efficiency of 0.926, it is equivalent to saving 31.84t/h of standard coal throughout the year.
  • the amount of coal saved was 27882.1 tons.
  • the annual carbon dioxide emissions were reduced by 7,306,711.9 tons, the sulfur dioxide emissions were reduced by 2,370.5 tons, and the nitrogen oxide emissions were reduced by 2,063.7 tons.
  • the light-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure has the advantages of low cost, low energy consumption and environmental protection.
  • the light-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure includes a first medium tank 6, a second medium tank 7, a light and heat system 1, a first heat exchange gas, a second heat exchanger 5, and a steam generating device 3 , steam turbine 4 and heat recovery system 9.
  • the first medium tank 6 has a first medium inlet 61 and a first medium outlet 62;
  • the second medium tank 7 has a second medium inlet 71 and a second medium outlet 72;
  • the photothermal system 1 is used to convert solar energy into thermal energy.
  • the photothermal system 1 has a third medium inlet 101 and a third medium outlet 102.
  • the third medium outlet 102 is connected to the first medium inlet 61, and the third medium inlet 101 is connected to the second medium inlet 102.
  • the medium outlet 72 is connected.
  • the photothermal system 1 includes a body 104 and a heat storage tank 103.
  • the body 104 includes a mirror field 1041 and a tower body 1042.
  • the heat storage tank 103 is located at the upper end of the tower body 1042.
  • the heat storage tank 103 has a first medium inlet 61 and a first medium. Exit 62.
  • the mirror field 1041 reflects sunlight onto the heat storage tank 103, and the heat storage tank 103 absorbs the heat of the sunlight, thereby heating the medium located in the heat storage tank 103, causing the temperature of the medium in the heat storage tank 103 to rise, thereby achieving The effect of storing solar energy.
  • the medium in the heat storage tank 103 may be molten salt, water, or other substances capable of storing energy.
  • the first heat exchanger 2 has a first heat-absorbing side inlet 201, a first heat-absorbing side outlet 202, a first heat-releasing side inlet 203 and a first heat-releasing side outlet 204.
  • the first heat-releasing side inlet 203 is connected with the first medium. Exit 62 is connected;
  • the second heat exchanger 5 has a second heat-absorbing side inlet 501, a second heat-absorbing side outlet 502, a second heat-releasing side inlet 503, and a second heat-releasing side outlet 504.
  • the second heat-radiating side outlet 504 is connected to the second medium.
  • the inlet 71 is connected, and the second heat releasing side inlet 503 is connected with the first heat releasing side outlet 204;
  • the steam generating device 3 has a first water inlet 31 and a first steam outlet 32 .
  • the steam turbine 4 includes a high-pressure cylinder 401 and a medium-pressure cylinder 402.
  • the high-pressure cylinder 401 has a high-pressure steam inlet 4011 and a high-pressure steam outlet 4012.
  • the high-pressure steam inlet 4011 is connected to the first steam outlet 32, and the high-pressure steam outlet 4012 is connected to the first heat-absorbing side inlet 201. connected; connected
  • the medium-pressure cylinder 402 has a medium-pressure steam inlet 4021 and a medium-pressure steam outlet 4022.
  • the medium-pressure steam inlet 4021 is connected to the first heat-absorbing side outlet 202.
  • the heat recovery system 9 includes a high heating system 901.
  • the high heating system 901 has a first high heating passage 9011. One end of the first high heating passage 9011 is connected to the medium pressure cylinder 402, and the other end of the first high heating passage 9011 is connected to the first high heating passage 9011.
  • the water inlet 31 is connected.
  • the first high-gauge channel 9011 has a first inlet 90111 and a first outlet 90112. The first inlet 90111 is connected to the second heat-absorbing side outlet 502, and the first outlet 90112 is connected to the second heat-absorbing side outlet 502.
  • the first heat exchanger 2 has a first heat absorption side channel and a first heat release side channel, and one end of the first heat release side channel is the first heat exchanger.
  • the other end of the heat release side inlet 203 and the first heat release side channel is the first heat release side outlet 204.
  • One end of the first heat-absorbing side channel is the first heat-absorbing side inlet 201, and the other end of the first heat-absorbing side channel is the first heat-absorbing side outlet 202.
  • the first heat release side channel and the first heat absorption side channel can perform heat exchange in the first heat exchanger 2 .
  • the second heat exchanger 5 has a second heat-absorbing side channel and a second heat-releasing side channel.
  • One end of the second heat-releasing side channel is the second heat-releasing side.
  • the other end of the inlet 503 and the second heat release side channel is the second heat release side outlet 504.
  • One end of the second heat-absorbing side channel is the second heat-absorbing side inlet 501, and the other end of the second heat-absorbing side channel is the second heat-absorbing side outlet 502.
  • the second heat releasing side channel and the second heat absorbing side channel can perform heat exchange in the second heat exchanger 5 .
  • the medium in the heat storage tank 103 can be discharged from the first medium outlet 62 and then enter the first heat release side channel of the first heat exchanger 2 through the first heat release side inlet 203 .
  • the cold reheat steam discharged from the high-pressure steam outlet 4012 passes through the first
  • the heat-absorbing side inlet 201 enters the first heat-absorbing side channel of the first heat exchanger 2 .
  • the medium in the first heat release channel exchanges heat with the cold reheat steam in the first heat absorption channel, so that the cold reheat steam is heated into hot reheat steam and is discharged through the first heat absorption side outlet 202 and then passes through the medium pressure
  • the steam inlet 4021 enters the medium pressure cylinder 402 to perform work.
  • the medium in the first heat release channel is discharged from the first heat release side outlet 204 and then enters the first heat exchanger 2 through the first heat release side inlet to exchange heat with the cold reheat steam.
  • the medium is discharged from the first heat release side outlet 204 and enters the second heat exchanger 5 through the second heat release side inlet 503, and the liquid water is discharged from the first high-gauge channel 9011 and enters the second heat exchanger 5.
  • the heat-exchanged medium enters the photothermal system 1 through the first medium inlet 61 and is heated again.
  • the light-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure has the advantages of low cost of use, low energy consumption, and environmental protection.
  • the light-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure further includes a first pipeline, a second pipeline, and a third pipeline.
  • One end of the first pipeline is connected to the first medium outlet 62, and the other end of the first pipeline is connected to the first heat release side inlet 203.
  • One end of the second pipeline is connected to the second medium inlet 71 , and the other end of the second pipeline is connected to the second heat release side outlet 504 .
  • One end of the third pipeline is connected to the first heat release side outlet 204, and the other end of the third pipeline is connected to the second heat release side inlet 503.
  • the heat storage tank 103, the first medium tank 6, the second medium tank 7, the first heat exchanger 2 and the second heat exchanger 5 are finally connected by using the first pipeline, the second pipeline and the third pipeline.
  • the medium is circulated between the heat storage tank 103, the first heat exchanger 2 and the second heat exchanger 5.
  • the light-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure further includes a low-pressure cylinder 403 .
  • the low-pressure cylinder 403 has a low-pressure steam inlet 4031 and a low-pressure steam outlet 4032 .
  • the medium-pressure steam The outlet 4022 is connected to the low pressure steam inlet 4031. That is to say, after the hot reheated steam enters the medium-pressure cylinder 402 through the medium-pressure steam inlet 4021 to perform work, it is discharged from the Central Asian steam outlet and then enters the low-pressure cylinder 403 through the low-pressure steam outlet 4032 to perform work.
  • the light-coal complementary steam turbine system 100 for energy cascade utilization in the embodiment of the present disclosure further includes a condensing device 8 and a deaerator 903.
  • the condensing device 8 has a first condensation inlet 801 and a first condensation outlet 803.
  • the device 903 has a first deoxygenation inlet 9031 and a first deoxygenation outlet 9034.
  • the first condensation inlet 801 is connected to the low-pressure steam outlet 4032.
  • the first condensation outlet 803 is connected to the first deoxygenation inlet 9031.
  • the first deoxygenation outlet 9034 is connected to the first deoxygenation inlet 9031.
  • the first water inlet 31 is connected.
  • the steam discharged from the low-pressure steam outlet 4032 enters the condensation device 8 through the first condensation inlet 801 for condensation. After the steam is condensed into liquid water, it is discharged from the first condensation outlet 803 and enters the deaerator through the first deaeration inlet 9031.
  • the device performs deoxygenation.
  • the deoxygenated liquid water is discharged from the first deoxygenation outlet 9034 and then enters the steam generating device 3 through the first water inlet 31 to be heated again to form main steam, and the cycle is repeated.
  • the heat recovery system 9 also includes a low-heating system 902 .
  • the high-adding system 901 has a first high-adding channel 9011 and a second high-adding channel 9012 connected to each other. One end of the first high-adding channel 9011 is connected to the first deaeration outlet 9034, and the other end of the first high-adding channel 9011 is connected to the first water inlet 31 connected.
  • the deaerator 903 also has a second deaeration inlet 9032.
  • One end of the second high pressure plus channel 9012 is connected to the second deaeration inlet 9032.
  • the other end of the second high pressure plus channel 9012 is connected to at least one of the high pressure cylinder 401 and the medium pressure cylinder 402. One is connected.
  • the low-adding system 902 has a first low-adding channel 9021. One end of the first low-adding channel 9021 is connected to the first condensation outlet 803, and the other end of the first low-adding channel 9021 is connected to the first deaeration inlet 9031.
  • the condensing device 8 also has a second condensation inlet 802, and the low-adding system 902 also has a second low-adding channel 9022. One end of the second low-adding channel 9022 is connected to the second condensing inlet 802, and the other end of the second low-adding channel 9022 is connected to the second condensing inlet 802.
  • the low pressure cylinder 403 is connected.
  • first high-adding channel 9011 and the second high-adding channel 9012 are capable of heat exchange
  • first low-adding channel 9021 and the second low-adding channel 9022 are capable of heat exchange. That is to say, the steam discharged from the low-pressure cylinder 403 enters the second low-pressure channel 9022 through the other end of the second low-pressure channel 9022.
  • the liquid water in the first low-pressure channel 9021 and the steam in the second low-pressure channel 9022 Heat exchange is performed, and the temperature of the liquid water in the first low-pressure channel 9021 is increased.
  • the steam in the second low-adding channel 9022 is condensed into liquid water after heat exchange and is discharged from one end of the second low-adding channel 9022.
  • the liquid water is discharged from the first condensation outlet.
  • 803 enters the first low-adding channel 9021 through one end of the first low-adding channel 9021 and exchanges heat with the steam in the second low-adding channel 9022 to increase the temperature.
  • the liquid water whose temperature has been raised is discharged from the other end of the first high-pressure channel 9011 and enters the deaeration device through the first deaeration inlet 9031 for deaeration.
  • the deoxygenated liquid water is discharged from the first deoxygenated outlet 9034 and enters the first high-adding channel 9011 through one end of the first high-adding channel 9011.
  • the steam discharged from the high-pressure cylinder 401 and the medium-pressure cylinder 402 enters the second high-pressure channel 9012 through the other end of the second high-pressure channel 9012.
  • the liquid water in the first high-pressure channel 9011 is mixed with the liquid water in the second high-pressure channel 9012.
  • the steam exchanges heat, and the temperature of the liquid water in the first high-pressure passage 9011 is increased.
  • the steam in the second high-adding channel 9012 is condensed into liquid water after heat exchange and is discharged from one end of the second high-adding channel 9012, and then enters the deaeration device through the second deaeration inlet 9032 for deoxygenation.
  • the liquid water is discharged from the first deaeration outlet 9034 and then enters the first high-adding channel 9011 through one end of the first high-adding channel 9011 and interacts with The steam in the second high-heating passage 9012 performs heat exchange to increase the temperature.
  • the liquid water whose temperature has been raised is discharged from the other end of the first high-heating channel 9011 and enters the steam generating device 3 through the first water inlet 31 to be heated again to form main steam.
  • the heat recovery system 9 uses the steam in the high-pressure cylinder 401 and the medium-pressure cylinder 402 to heat the liquid water in the first high-pressure pipeline 90131, and uses the steam in the low-pressure cylinder 403 to heat the first high-pressure pipeline. Liquid water in 90131 is heated. This prevents the temperature of the liquid water entering the steam generating device 3 from being too low, thereby reducing the energy required by the steam generating device 3 to heat the liquid water as main steam. Therefore, the solar-coal complementary steam turbine system 100 with cascade utilization of energy in the embodiment of the present disclosure greatly reduces the energy consumption of the solar-coal complementary steam turbine system 100 with cascade utilization of energy by setting the heat recovery system 9 .
  • the high-adding system 901 includes a first high-adding device 9013 , a second high-adding device 9014 , and a third high-adding device 9015 .
  • the first high-adding device 9013 has a first high-adding pipeline 90131, and one end of the first high-adding pipeline 90131 is connected to the first deaeration outlet 9034.
  • the second high pressure device 9014 has a second high pressure pipeline 90141. One end of the second high pressure pipeline 90141 is connected to the other end of the first high pressure pipeline 90131.
  • the third high-pressure adding device 9015 has a third high-pressure adding pipeline 90151.
  • One end of the third high-adding pipeline 90151 is connected to the other end of the second high-adding pipeline 90141.
  • the other end of the third high-adding pipeline 90151 is connected to the first high-pressure adding pipeline 90151.
  • the water inlet 31 is connected.
  • the chamber of the first high-pressure pipeline 90131, the chamber of the second high-pressure pipeline 90141, and the chamber of the first high-gas pipeline 90131 are connected in sequence to form the first high-gas channel 9011.
  • the first high-adding device 9013 also has a first high-adding steam inlet 90132 and a first high-adding steam outlet 90133.
  • the first high-adding steam outlet 90133 is connected to the second deoxygenating inlet 9032.
  • the second high-adding device 9014 also has a second high-adding steam outlet 90133 The high-adding steam inlet 90142 and the second high-adding steam outlet 90143.
  • the second high-adding steam outlet 90143 is connected to the first high-adding steam inlet 90132.
  • the third high-adding steam inlet 9015 also has a third high-adding steam inlet 90152 and a third high-adding steam inlet 90152.
  • the third high-pressure steam outlet 90153 is connected to the second high-pressure steam inlet 90142, and the third high-pressure steam inlet 90152 is connected to one of the high-pressure cylinder 401 and the medium-pressure cylinder 402.
  • the second high-pressure steam inlet 90144 also has a fourth high-pressure steam inlet 90144.
  • the fourth high-pressure steam inlet 90144 is connected to one of the high-pressure cylinder 401 and the medium-pressure cylinder 402.
  • the first high-pressure steam inlet 90134 also has a fifth high-pressure steam inlet 90134.
  • the fifth high-pressure steam inlet 90134 is connected to one of the high-pressure cylinder 401 and the medium-pressure cylinder 402.
  • the chamber of the pipeline connecting the first high-adding steam outlet 90133 and the second high-adding steam inlet 9032, the chamber of the pipeline connecting the second high-adding steam outlet 90143 and the first high-adding steam inlet 90132, and the third high-adding steam The chambers connected to the outlet 90153 and the second high-pressure steam inlet 90142 are sequentially connected to form a second high-pressure steam passage 9012.
  • the high-pressure heating system 901 uses the steam in the high-pressure cylinder 401 and the medium-pressure cylinder 402 to heat the liquid water in the first high-pressure heating pipeline 90131, so that the temperature of the liquid water entering the steam generating device 3 will not be too low, and thus can The energy required by the steam generating device 3 to heat the liquid water as main steam is reduced. Therefore, the solar-coal complementary steam turbine system 100 with cascade utilization of energy in the embodiment of the present disclosure greatly reduces the energy consumption of the solar-coal complementary steam turbine system 100 with cascade utilization of energy in the embodiment of the present disclosure by setting the high-power system 901 .
  • the low adding device 902 includes a first low adding device 9023 , a second low adding device 9024 , a third low adding device 9025 and a fourth low adding device 9026 .
  • the first low-adding device 9023 has a first low-adding pipeline 90231, and one end of the first low-adding pipeline 90231 is connected to the first condensation outlet 803.
  • the second low-adding device 9024 has a second low-adding pipeline 90241. One end of the second low-adding pipeline 90241 is connected to the other end of the first low-adding pipeline 90231.
  • the third low-adding device 9025 has a third low-adding pipeline 90251, and one end of the third low-adding pipeline 90251 is connected to the other end of the second low-adding pipeline 90241.
  • the fourth low-adding device 9026 has a fourth low-adding pipeline 90261. One end of the fourth low-adding pipeline 90261 is connected to the other end of the third low-adding pipeline 90251.
  • the other end of the fourth low-adding pipeline 90261 is connected to the first
  • the deaeration inlet 9031 is connected, the chamber of the first low-adding pipeline 90231, the chamber of the second low-adding pipeline 90241, the chamber of the third low-adding pipeline 90251 and the chamber of the fourth low-adding pipeline 90261 in sequence connected to form the first low plus channel 9021.
  • the first low-adding steam device 9023 also has a first low-adding steam inlet 90232 and a first low-adding steam outlet 90233.
  • the first low-adding steam outlet 90233 is connected to the second condensation inlet 802.
  • the second low-adding steam device 9024 also has a second low-adding steam inlet 90242 and a second low-adding steam outlet 90243.
  • the second low-adding steam outlet 90243 is connected to the first low-adding steam inlet 90232.
  • the third low-adding steam device 9025 also has a third low-adding steam inlet 90252 and a third low-adding steam outlet 90253.
  • the third low-adding steam outlet 90253 is connected to the second low-adding steam inlet 90242.
  • the fourth low-adding steam device 9026 also has a fourth low-adding steam inlet 90262 and a fourth low-adding steam outlet 90263.
  • the fourth low-adding steam outlet 90263 is connected to the third low-adding steam inlet 90252.
  • the fourth low-adding steam inlet 90262 is connected to the low pressure Cylinder 403 is connected.
  • the third low-pressure adding device 9025 also has a fifth low-pressure adding steam inlet 90254, and the fifth low-pressure adding steam inlet 90254 is connected to the low-pressure cylinder 403.
  • the second low-pressure adding device 9024 also has a sixth low-pressure adding steam inlet 90244, and the sixth low-pressure adding steam inlet 90244 is connected to the low-pressure cylinder 403.
  • the first low-pressure adding device 9023 also has a seventh low-pressure adding steam inlet 90234, and the seventh low-pressure adding steam inlet 90234 is connected to the low-pressure cylinder 403.
  • the chamber of the pipeline connecting the first low-adding steam outlet 90233 and the second condensation inlet 802 the chamber of the pipeline connecting the second low-adding steam outlet 90243 and the first low-adding steam inlet 90232, and the third low-adding steam outlet
  • the chamber of the pipeline connected to the second low-added steam inlet 90242 and the fourth low-added steam outlet 90263 to the third low-added steam inlet 90252 are connected in sequence to form the second low-added channel 9022.
  • the low-pressure system 902 uses the steam in the low-pressure cylinder 403 to heat the liquid water in the first low-pressure pipeline 90231, so that the temperature of the liquid water entering the first high-pressure channel 9011 will not be too low, thereby causing the incoming steam to generate The temperature of the liquid water in the device 3 will not be too low, thereby reducing the energy required by the steam generating device 3 to heat the liquid water into main steam. Therefore, the solar-coal complementary steam turbine system 100 with cascade utilization of energy in the embodiment of the present disclosure greatly reduces the energy consumption of the solar-coal complementary steam turbine system 100 with cascade utilization of energy by setting the low-loading system 902 .
  • the steam generating device 3 includes a steam generator 33 , a first steam heater 34 , and a second steam heater 35 .
  • the steam generator 33 has a first water inlet 31, a third steam outlet 3341 and a fourth steam outlet 3342;
  • the first steam heater 34 includes a first heating inlet 3411 and a first heating outlet 3431, and the first heating inlet 3411 and the third Steam
  • the steam outlet 3341 is connected, and the first heating outlet 3431 is connected with the first steam outlet 32;
  • the second steam heater 35 includes a second heating inlet 3511 and a second heating outlet 3531, and the second heating inlet 3511 is connected with the fourth steam outlet 3342.
  • the second heating outlet 3531 is connected with the first steam outlet 32 .
  • the steam generating device 3 of the embodiment of the present disclosure includes a steam generator 33 , a first steam heater 34 and a second steam heater 35 .
  • the steam generator 33 includes an economizer 331 , a water-cooled wall 332 , a steam-water separator 333 and a horizontal low-temperature superheater 334 .
  • the economizer 331 has a first water inlet 31, and the economizer 331, the water wall 332, the steam-water separator 333 and the horizontal low-temperature superheater 334 are connected in sequence.
  • the economizer 331 and the water-cooled wall 332 are used to heat water to generate steam.
  • the steam-water separator 333 is used to separate the evaporated water in the steam.
  • the separated water returns to the water-cooled wall 332 for heating and evaporation.
  • the horizontal low-temperature superheater 334 It includes a third steam outlet 3341 and a fourth steam outlet 3342.
  • the first steam heater 34 includes a vertical low-temperature superheater 341, a screen superheater 342 and a final superheater 343.
  • the vertical low-temperature superheater 341 includes a first heating inlet 3411
  • the final superheater 343 has a first heating outlet 3431
  • the first heating inlet 3411 is connected with the third steam outlet 3341
  • the second steam heater 35 includes a horizontal low temperature reheater 351 , a vertical low temperature reheater 352 and a final stage reheater 353 .
  • the horizontal low temperature reheater 351 includes a second heating inlet 3511
  • the final reheater 353 has a second heating outlet 3531
  • the second heating inlet 3511 is connected with the fourth steam outlet 3342
  • the reheater 352 and the final reheater 353 are connected in sequence, thereby heating the steam to form high-temperature and high-pressure main steam.
  • water enters the steam generator 33 through the first water inlet 31 and is heated to form steam.
  • a part of the steam is discharged from the third steam outlet 3341 and enters the third steam generator through the first heating inlet 3411.
  • a steam heater 34 is heated to form high-temperature and high-pressure main steam (.MPa, °C), and the formed main steam is discharged through the first heating outlet 3431.
  • Another part of the steam is discharged from the third steam outlet 3341 and enters the second steam heater 35 through the second heating inlet 3511 to be heated to form high-temperature and high-pressure main steam.
  • the formed main steam is discharged through the second heating outlet 3531 .
  • the main steam formed after being heated by the first steam heater 34 and the second steam heater 35 respectively is discharged through the first steam outlet 32 .
  • the boiler in the related art includes a steam generator 33, a superheater and a reheater, wherein the steam generator 33 has a first outlet 90112 and a second outlet, the superheater has a steam inlet and a main steam outlet, and the reheater includes a cold reheater. Steam inlet and hot reheat steam outlet. The first outlet 90112 and the second outlet are both connected to the steam inlet. The steam is discharged from the first outlet 90112 and the second outlet and enters the superheater to be heated to form main steam. The main steam is discharged through the main steam outlet for use by the high-pressure cylinder 401 of the steam turbine 4 .
  • the cold reheat steam generated after doing work in the high-pressure cylinder 401 needs to return to the traditional boiler again, and is heated in the reheater entering through the cold reheat steam inlet to form hot reheat steam.
  • the hot reheat steam exits from the hot reheat steam Drained for use by the medium pressure cylinder 402.
  • the steam generating device 3 of the light-coal complementary steam turbine system 100 with energy cascade utilization in the embodiment of the present disclosure can be simply modified by using a boiler in the related art.
  • the first outlet 90112 of the steam generator 33 of the boiler in the related art is connected to the steam inlet. Disconnect and connect the cold reheat steam inlet of the reheater to the first outlet 90112 of the steam generator 33 so that the reheater and the superheater heat the steam generated by the steam generating device 3 together. Therefore, only part of the pipelines in the traditional boiler need to be modified to adapt the traditional boiler to the light-coal complementary steam turbine system 100 of the energy cascade utilization embodiment of the present disclosure. There is no need to carry out large-scale modifications to the traditional boiler or spend money to produce steam. Therefore, the steam generating device 3 of the steam turbine 4 system of the light-heat and coal-fired complementary steam turbine 4 system in the embodiment of the present disclosure is easy to reuse and transform, and has the advantage of low deployment cost.
  • the deaerator 903 also has a third deaeration inlet 9033, which is connected to the medium-pressure cylinder 402 to receive the liquid water discharged from the medium-pressure cylinder 402.
  • An embodiment of the present disclosure also provides a power generation system, including a generator 200 and the light-coal complementary steam turbine system 100 with cascade utilization of energy described in the above embodiment.
  • the power generation system provided by the embodiment of the present disclosure adopts the light-coal complementary steam turbine system 100 with energy cascade utilization, which has the advantages of low cost, low energy consumption and environmental protection.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this disclosure, unless otherwise explicitly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be mechanically connected, electrically connected or communicable with each other; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, Unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features may be in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • the terms “one embodiment,” “some embodiments,” “example,” “specific examples,” or “some examples” or the like mean that a particular feature, structure, material, or other feature is described in connection with the embodiment or example.
  • Features are included in at least one embodiment or example of the disclosure.
  • the schematic expressions of the above terms are not necessarily directed to the same embodiment or example.
  • the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
  • those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

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Abstract

一种能量梯级利用的光煤互补汽轮机系统和发电系统，能量梯级利用的光煤互补汽轮机系统包括第一介质罐（6)、第二介质罐(7)、光热系统（1）、第一换热器（2）、第二换热器（5）、蒸汽发生装置（3）、汽轮机（4）和回热系统（9）。第一换热器具有第一吸热侧入口（201）、第一吸热侧出口（202）、第一放热侧入口（203）和第一放热侧出口（204），第一放热侧入口与第一介质罐相连；蒸汽发生装置具有第一进水口（31）与第一蒸汽出口（32）；汽轮机包括高压缸（401）和中压缸（402），高压缸具有高压蒸汽入口（4011）和高压蒸汽出口（4012），高压蒸汽入口与第一蒸汽出口相连，高压蒸汽出口与第一吸热侧入口相连；中压缸具有中压蒸汽入口（4021）和中压蒸汽出口（4022），中压蒸汽入口与第一吸热侧出口相连。该汽轮机系统和发电系统使用成本低、能耗少且环保。

Description

能量梯级利用的光煤互补汽轮机系统及发电系统
相关申请的交叉引用
本申请要求在2022年08月17日在中国提交的中国专利申请号2022109854825的优先权，其全部内容通过引用并入本文。
技术领域
本公开属于汽轮机发电技术领域，具体涉及一种能量梯级利用的光煤互补汽轮机系统及发电系统。
背景技术
汽轮机是一种旋转式蒸汽动力装置，汽轮机是现代火力发电的主要设备之一。相关技术中的汽轮机发电系统利用汽轮机做功进而推动发动机发电，汽轮机发电系统通常采用煤炭作为燃料进行发电，导致汽轮机发电系统的污染物排放较多且发电的成本高。
发明内容
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。
为此，本公开实施例提出一种汽轮机系统，该汽轮机系统具有使用成本低、能耗少以及环保的优点。
本公开实施例提供的能量梯级利用的光煤互补汽轮机系统包括第一介质罐、第二介质罐、光热系统、第一换热气、第二换热器、蒸汽发生装置、汽轮机和回热系统。
所述第一介质罐具有第一介质入口和第一介质出口；
所述第二介质罐具有第二介质入口和第二介质出口；
所述光热系统具有第三介质入口和第三介质出口，所述第三介质出口与所述第一介质入口相连，所述第三介质入口与所述第二出口相连；
所述第一换热器具有第一吸热侧入口、第一吸热侧出口、第一放热侧入口和第一放热侧出口，所述第一放热侧入口与所述第一介质出口相连；
所述第二换热器具有第二吸热侧入口、第二吸热侧出口、第二放热侧入口和第二放热侧出口，所述第二放热侧出口与所述第二介质入口相连，所述第二放热侧入口与所述第一放热侧出口相连；
所述蒸汽发生装置具有第一进水口与第一蒸汽出口；
所述汽轮机包括高压缸和中压缸，所述高压缸具有高压蒸汽入口和高压蒸汽出口，所述高压蒸汽入口与所述第一蒸汽出口相连，所述高压蒸汽出口与所述第一吸热侧入口相连；
所述中压缸具有中压蒸汽入口和中压蒸汽出口，所述中压蒸汽入口与所述第一吸热侧出口相连；
所述回热系统包括高加系统，所述高加系统具有第一高加通道，所述第一高加通道的一端与所述中压缸相相连，所述第一高加通道的另一端与所述第一进水口相连，所述第一高加通道具有第一进口和第二出口，所述第一进口与所述第二吸热侧出口相连，所述第一出口与所述第二吸热侧出口相连。
与相关技术相比，本公开实施例的光煤互补汽轮机系统通过利用光热系统一方面代替蒸汽发生装置加热冷再热蒸汽，使蒸汽发生装置所需要消耗的燃料大大的减少；另一方面，利用光热系统对进入蒸汽发生装置内的液态水进行升温，进一步减少了蒸汽发生装置产生蒸汽所需要消耗的燃料。
因此，本公开实施例的光煤互补汽轮机系统减少了蒸汽发生装置消耗的燃料量，节约了成本，而且还减少了燃烧燃料所产生污染物的排放。
在一些实施例中，本公开实施例的能量梯级利用的光煤互补汽轮机系统进一步包括：
第一管路，第一管路的一端与第一介质出口相连，第一管路的另一端与第一放热侧入口相连。
第二管路，第二管路的一端与第二介质入口相连，第二管路的另一端与第二放热侧出口相连。
第三管路。第三管路的一端与第一放热侧出口相连，第三管路的另一端与第二放热侧入口相连。
在一些实施例中，本公开实施例的能量梯级利用的光煤互补汽轮机系统进一步包括低压缸，所述低压缸具有低压蒸汽入口和低压蒸汽出口，所述中压蒸汽出口与所述低压蒸汽入口相连。
在一些实施例中，本公开实施例的能量梯级利用的光煤互补汽轮机系统进一步包括冷凝装置和除氧器，所述冷凝装置具有第一冷凝入口和第一冷凝出口，所述除氧器具有第一除氧入口和第一除氧出口，所述第一冷凝入口与所述低压蒸汽出口相连，所述第一冷凝出口与所述第一除氧入口相连，所述第一除氧出口与所述第一进水口相连。
在一些实施例中，所述回热系统还包括低加系统，
所述第一高加通道一端与所述第一除氧出口相连，所述第一高加通道另一端与所述第一进水口相连；
所述高加系统还具有第二高加通道，所述第二高加通道的一端与所述第一除氧出口相连，所述第二高加通道另一端与所述高压缸和所述中压缸中的至少一者相连；
所述低加系统具有第一低加通道，所述第一低加通道的一端与所述第一冷凝出口相连，所述第一低加通道的另一端与所述第一除氧入口相连；
所述冷凝装置还具有第二冷凝入口，所述低加系统还具有第二低加通道，所述第二低加通道的一端与第二冷凝入口相连，所述第二低加通道的另一端与所述低压缸相连。
在一些实施例中，所述高加系统包括：
第一高加装置，所述第一高加装置具有第一高加管路，所述第一高加管路的一端与所述第一除氧出口相连；
第二高加装置，所述第二高加装置具有第二高加管路，所述第二高加管路的一端与所述第一高加管路的另一端相连；
第三高加装置，所述第三高加装置具有第三高加管路，所述第三高加管路的一端与所述第二高加管路的另一端相连，所述第三高加管路的另一端与所述第一进水口相连，所述第一高加管路的腔室、所述第二高加管路的腔室和所述第三高加管路的腔室依次连通以形成所述第一高加通道；
所述除氧器还具有第二除氧出口，所述第一高加装置还具有第一高加蒸汽入口和第一高加蒸汽出口，所述第一高加蒸汽出口与所述第二除氧出口相连，
所述第二高加装置还具有第二高加蒸汽入口和第二高加蒸汽出口，所述第二高加蒸汽出口与所述第一高加蒸汽入口相连，
所述第三高加装置还具有第三高加蒸汽入口和第三高加蒸汽出口，所述第三高加蒸汽出口与所述第二高加蒸汽入口相连，所述第三高加蒸汽入口与所述高压缸和所述中压缸中的一者相连，
所述第二高加装置还具有第四高加蒸汽入口，所述第四高加蒸汽入口与所述高压缸和所述中压缸中的一者相连；
所述第一高加装置还具有第五高加蒸汽入口，所述第五高加蒸汽入口与所述高压缸和所述中压缸中的一者相连。
在一些实施例中，所述低加系统包括：
第一低加装置，所述第一低加装置具有第一低加管路，所述第一低加管路的一端与所述第一冷凝出口相连；
第二低加装置，所述第二低加装置具有第二低加管路，所述第二低加管路的一端与所述第一低加管路的另一端相连；
第三低加装置，所述第三低加装置具有第三低加管路，所述第三低加管路的一端与所述第二低加管路的另一端相连；
第四低加装置，所述第四低加装置具有第四低加管路，所述第四低加管路的一端与所述第三低加管路的另一端相连，所述第四低加管路的另一端与所述第一除氧入口相连；所述第一低加管路的腔室、所述第二低加管路的腔室、所述第三低加管路的腔室和所述第四低加管路的腔室依次连通以形成所述第一低加通道，
所述第一低加装置还具有第一低加蒸汽入口和第一低加蒸汽出口，所述第一低加蒸汽出口与所述第二冷凝入口相连，
所述第二低加装置还具有第二低加蒸汽入口和第二低加蒸汽出口，所述第二低加蒸汽出口与所述第一低加蒸汽入口相连，
所述第三低加装置还具有第三低加蒸汽入口和第三低加蒸汽出口，所述第三低加蒸汽出口与所述第二低加蒸汽入口相连，
所述第四低加装置还具有第四低加蒸汽入口和第四低加蒸汽出口，所述第四低加蒸汽出口与所述第三低加蒸汽入口相连，第四低加蒸汽入口与所述低压缸相连，
所述第三低加装置还具有第五低加蒸汽入口，所述第五低加蒸汽入口与所述低压缸相连，
所述第二低加装置还具有第六低加蒸汽入口，所述第六低加蒸汽入口与所述低压缸相连，
所述第一低加装置还具有第七低加蒸汽入口，所述第七低加蒸汽入口与所述低压缸相连。
在一些实施例中，所述蒸汽发生装置包括：
蒸汽发生器，所述蒸汽发生器具有所述第一进水口、第三蒸汽出口和第四蒸汽出口；
第一蒸汽加热器，所述第一蒸汽加热器包括第一加热进口和第一加热出口，所述第一加热进口与所述第三蒸汽出口连通，所述第一加热出口与所述第一蒸汽出口连通；和
第二蒸汽加热器，所述第二蒸汽加热器包括第二加热进口和第二加热出口，所述第二加热进口与所述第四蒸汽出口连通，所述第二加热出口与所述第一蒸汽出口连通。
在一些实施例中，所述除氧器还具有第三除氧出口，所述第三除氧入口与所述中压缸相连。
本公开实施例还提供了一种发电系统，所述发电系统包括发电机和汽轮机系统，所述汽轮机系统为上述任一实施例所述的汽轮机系统。本公开实施例的发电系统通过设置上述实施例的光煤互补汽轮机系统，大大的降低了蒸汽发生装置所需的燃料量，既节省了发电成本，也减少了发电所产生的污染物的排放量。
由此，本公开实施例的发电系统具有使用成本低、能耗少以及环保的优点。
附图说明
图1是本公开实施例能量梯级利用的光煤互补汽轮机系统的结构示意图；
图2是本公开实施例能量梯级利用的光煤互补汽轮机系统中蒸汽发生装置的结构示意图。
附图标记：
100、能量梯级利用的光煤互补汽轮机系统；200、发电机；
1、光热系统；
101、第三介质入口；102、第三介质出口；103、储热罐；104、本体；1041、镜场；1042、塔体；
2、第一换热器；201、第一吸热侧入口；202、第一吸热侧出口；203、第一放热侧入口；204、第一放热侧出口；
3、蒸汽发生装置；31、第一进水口；32、第一蒸汽出口；33、蒸汽发生器；331、省煤器；332、水冷壁；333、汽水分离器；334、水平低温过热器；3341、第三蒸汽出口；3342、第四蒸汽出口；34、第一蒸汽加热器；341、垂直低温过热器；3411、第一加热进口；342、屏式过热器；343、末级过热器；3431、第一加热出口；35、第二蒸汽加热器；351、水平低温再热器；3511、第二加热进口；352、垂直低温再热器；353、末级再热器；3531、第二加热出口；
4、汽轮机；401、高压缸；4011、高压蒸汽入口；4012、高压蒸汽出口；402、中压缸；4021、中压蒸汽入口；4022、中压蒸汽出口；403、低压缸；4031、低压蒸汽入口；4032、低压蒸汽出口；
5、第二换热器、501、第二吸热侧入口；502、第二吸热侧出口；503、第二放热侧入口；504、第二放热侧出口；
6、第一介质罐；61、第一介质入口；62、第一介质出口；
7、第二介质罐；71、第二介质入口；72、第二介质出口；
8、冷凝装置；801、第一冷凝入口；802、第二冷凝入口；803、第一冷凝出口；
9、回热系统；
901、高加系统；
9011、第一高加通道；90111、第一进口；90112、第一出口；9012、第二高加通道；
9013、第一高加装置；90131、第一高加管路；90132、第一高加蒸汽入口；90133、第一高加蒸汽出口；90134、第五高加蒸汽入口；
9014、第二高加装置；90141、第二高加管路；90142、第二高加蒸汽入口；90143、第二高加蒸汽出口；90144、第四高加蒸汽入口；
9015、第三高加装置；90151、第三高加管路；90152、第三高加蒸汽入口；90153、第三高加蒸汽出口；
902、低加系统；
9021、第一低加通道；9022、第二低加通道；
9023、第一低加装置；90231、第一低加管路；90232、第一低加蒸汽入口；90233、第一低加蒸汽出口；90234、第七低加蒸汽入口；
9024、第二低加装置；90241、第二低加管路；90242、第二低加蒸汽入口；90243、第二低加蒸汽出口；90244、第六低加蒸汽入口；
9025、第三低加装置；90251、第三低加管路；90252、第三低加蒸汽入口；90253、第三低加蒸汽出口；90254、第五低加蒸汽入口；
9026、第四低加装置；90261、第四低加管路；90262、第四低加蒸汽入口；90263、第四低加蒸汽出口；
903、除氧器；9031、第一除氧入口；9032、第二除氧入口；9033、第三除氧入口；9034、第一除氧出口。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
下面参考附图1-2描述本公开实施例的能量梯级利用的光煤互补汽轮机系统100。
如图1-2所示，本公开实施例的能量梯级利用的光煤互补汽轮机系统100包括第一介质罐6、第二介质罐7、光热系统1、第一换热气、第二换热器5、蒸汽发生装置3、汽轮机4和回热系统9。
第一介质罐6具有第一介质入口61和第一介质出口62；
第二介质罐7具有第二介质入口71和第二介质出口72；
光热系统1用于将太阳能转化为热能，光热系统1具有第三介质入口101和第三介质出口102，第三介质出口102与第一介质入口61相连，第三介质入口101与第二介质出口72相连。
第一换热器2具有第一吸热侧入口201、第一吸热侧出口202、第一放热侧入口203和第一放热侧出口204，第一放热侧入口203与第一介质出口62相连；
第二换热器5具有第二吸热侧入口501、第二吸热侧出口502、第二放热侧入口503和第二放热侧出口504，第二放热侧出口504与第二介质入口71相连，第二放热侧入口503与第一放热侧出口204相连；
蒸汽发生装置3用于将液态水蒸发为蒸汽，蒸汽发生装置3具有第一进水口31与第一蒸汽出口32。
汽轮机4包括高压缸401和中压缸402，高压缸401具有高压蒸汽入口4011和高压蒸汽出口4012，高压蒸汽入口4011与第一蒸汽出口32相连，高压蒸汽出口4012与第一吸热侧入口201相连。
中压缸402具有中压蒸汽入口4021和中压蒸汽出口4022，中压蒸汽入口4021与第一吸热侧出口202相连。
回热系统9包括高加系统901，高加系统901具有第一高加通道9011，第一高加通道9011的一端与中压缸402相相连，第一高加通道9011的另一端与第一进水口31相连，第一高加通道9011具有第一进口90111和第一出口90112，第一进口90111与第二吸热侧出口502相连，第一出口90112与第二吸热侧出口502相连。
下面参考附图1-2描述本公开实施例的能量梯级利用的光煤互补汽轮机系统100的工作过程。
如图1所示，水通过第一进水口31进入蒸汽发生装置3内处理形成高温高压的主蒸汽，主蒸汽通过第一蒸汽出口32排出蒸汽发生装置3后，主蒸汽通过高压蒸汽进口进入汽轮机4的高压缸401内做功，主蒸汽在高压腔内做功后形成冷再热蒸汽并从高压蒸汽出口4012排出；从高压蒸汽出口4012排出的冷再热蒸汽通过第一换热器2的第一吸热侧入口201进入第一换热器2内，使冷再热蒸汽与经过光热系统1加热后的介质换热升温形成热再热蒸汽，热再热蒸汽通过第一吸热侧出口202排出并通过中压蒸汽入口4021进入中压缸402内做功。
回热系统9的高加系统901的第一高加通道9011内的液态水由第一出口90112排出后，通过第二吸热侧入口501进入第二换热器5内进行换热升温，升温后的液态水由第二吸热侧出口502排出后，通过第一进口90111进入第一高加通道9011内后，再通过第一进水口31进入蒸汽发生装置3形成主蒸汽。
其中，光能系统加热后的介质从第三介质出口102排出，经过第一介质入口61进入第一介质罐6内后经第一介质出口62排出进入第一换热器2内与冷再热蒸汽进行换热，换热后的介质从第一放热侧出口204排出后通过第二放热侧入口503进入第二换热器5中与由第一高加通道9011内排出进入第二换热器5内的液态水进行换热，使液态水升温。换热后 的介质经过第二介质入口71进入第二介质罐7内后经第二介质出口72排出后，通过第三介质入口101进入光热系统1内进行再次加热。
相关技术中的汽轮机系统包括锅炉和汽轮机4，汽轮机4包括中压缸402和高压缸401。相关技术中的汽轮机系统在工作时，水进入锅炉内加热处理形成高温高压的主蒸汽，主蒸汽进入高压缸401内做功后形成冷再热蒸汽，冷再热蒸汽需要再次进入锅炉内加热从而形成热再热蒸汽，以供中压缸402做功。也就是说，锅炉不仅需要加热水使其形成高温高压的主蒸汽，还需要对冷再热蒸汽再进行加热，因此锅炉在加热冷再热蒸汽和水需要消耗较多的燃料，从而导致相关技术中的汽轮机4系统的污染物排放较多且使用的成本高。
与相关技术相比，本公开实施例的能量梯级利用的光煤互补汽轮机系统100利用光热系统1代替蒸汽发生装置3加热冷再热蒸汽，使蒸汽发生装置3所需要消耗的燃料的热量减少，同时利用光热系统1对进入蒸汽发生装置3内的液态水进行升温，进一步的减少了蒸汽发生装置3所需要消耗的燃料，既节约了成本，而且还减少了燃烧燃料所产生污染物的排放。
由此，本公开实施例的光煤互补汽轮机系统100能够较高程度实现塔式太阳能光热和火电机组系统互补，大幅度减少碳排放，以常规660MW机组(CLN600-24.2/566/566，一次中间再热，THA工况下再热蒸汽流量为1422.38t/h)为例进行计算，可以节约锅炉热耗862.1GJ/h，按照锅炉热效率0.926计算，折合节约标准煤31.84t/h，全年节约煤炭量27882.1吨。全年减少二氧化碳排放7306711.9吨，全年减少二氧化硫排放2370.5吨，全年氮氧化物排放2063.7吨。
由此，本公开实施例的能量梯级利用的光煤互补汽轮机系统100具有使用成本低、能耗少以及环保的优点。
下面参考附图1-2进一步的描述一下本公开实施例的能量梯级利用的光煤互补汽轮机系统100。
本公开实施例的能量梯级利用的光煤互补汽轮机系统100包括第一介质罐6、第二介质罐7、光热系统1、第一换热气、第二换热器5、蒸汽发生装置3、汽轮机4和回热系统9。
第一介质罐6具有第一介质入口61和第一介质出口62；
第二介质罐7具有第二介质入口71和第二介质出口72；
光热系统1用于将太阳能转化为热能，光热系统1具有第三介质入口101和第三介质出口102，第三介质出口102与第一介质入口61相连，第三介质入口101与第二介质出口72相连。
光热系统1包括本体104和储热罐103，本体104包括镜场1041和塔体1042，储热罐103设于塔体1042的上端，储热罐103具有第一介质入口61和第一介质出口62。镜场1041将太阳光反射至储热罐103上，储热罐103吸收太阳光的热量，进而加热位于储热罐103内的介质，使储热罐103的介质的温度升高，由此达到储存太阳能的效果。
在一些实施例中，储热罐103内的介质可为熔盐、水等能够储存能量的物质。
第一换热器2具有第一吸热侧入口201、第一吸热侧出口202、第一放热侧入口203和第一放热侧出口204，第一放热侧入口203与第一介质出口62相连；
第二换热器5具有第二吸热侧入口501、第二吸热侧出口502、第二放热侧入口503和第二放热侧出口504，第二放热侧出口504与第二介质入口71相连，第二放热侧入口503与第一放热侧出口204相连；
蒸汽发生装置3具有第一进水口31与第一蒸汽出口32。
汽轮机4包括高压缸401和中压缸402，高压缸401具有高压蒸汽入口4011和高压蒸汽出口4012，高压蒸汽入口4011与第一蒸汽出口32相连，高压蒸汽出口4012与第一吸热侧入口201相连；
中压缸402具有中压蒸汽入口4021和中压蒸汽出口4022，中压蒸汽入口4021与第一吸热侧出口202相连。
回热系统9包括高加系统901，高加系统901具有第一高加通道9011，第一高加通道9011的一端与中压缸402相相连，第一高加通道9011的另一端与第一进水口31相连，第一高加通道9011具有第一进口90111和第一出口90112，第一进口90111与第二吸热侧出口502相连，第一出口90112与第二吸热侧出口502相连。
值得注意的是，为了使得第一换热器2能够实现换热，第一换热器2具有第一吸热侧通道和第一放热侧通道，第一放热侧通道的一端是第一放热侧入口203，第一放热侧通道的另一端是第一放热侧出口204。第一吸热侧通道的一端是第一吸热侧入口201，第一吸热通道的另一端是第一吸热侧出口202。第一放热侧通道和第一吸热侧通道能够在第一换热器2内进行换热。
同时，为了使得第二换热器5能够实现换热，第二换热器5具有第二吸热侧通道和第二放热侧通道，第二放热侧通道的一端是第二放热侧入口503，第二放热侧通道的另一端是第二放热侧出口504。第二吸热侧通道的一端是第二吸热侧入口501，第二吸热通道的另一端是第二吸热侧出口502。第二放热侧通道和第二吸热侧通道能够在第二换热器5内进行换热。
也就是说，储热罐103内的介质可由第一介质出口62排出后通过第一放热侧入口203进入第一换热器2的第一放热侧通道内。由高压蒸汽出口4012排出的冷再热蒸汽通过第一 吸热侧入口201进入第一换热器2的第一吸热侧通道内。第一放热通道内的介质与第一吸热通道内的冷再热蒸汽进行换热，使得冷再热蒸汽被加热为热再热蒸汽后有第一吸热侧出口202排出后通过中压蒸汽入口4021进入中压缸402内进行做功。而第一放热通道内的介质经过换热后由第一放热侧出口204排出后经过第一放热侧进口进入第一换热器2内与冷再热蒸汽进行换热，换热后的介质从第一放热侧出口204排出后通过第二放热侧入口503进入第二换热器5中与由第一高加通道9011内排出进入第二换热器5内的液态水进行换热，使液态水升温。换热后的介质经过第一介质入口61进入光热系统1内进行再次加热。
由此实现利用太阳能将冷再热蒸汽加热为热再热蒸汽和对将要进入蒸汽发生装置3内的液态水进行升温。能够减少蒸汽发生装置3产生蒸汽所需能耗。因此，本公开实施例的能量梯级利用的光煤互补汽轮机系统100具有使用成本低、能耗少以及环保的优点。
在一些实施例中，如图1所示，本公开实施例的能量梯级利用的光煤互补汽轮机系统100还包括第一管路、第二管路和第三管路。
第一管路的一端与第一介质出口62相连，第一管路的另一端与第一放热侧入口203相连。
第二管路的一端与第二介质入口71相连，第二管路的另一端与第二放热侧出口504相连。
第三管路的一端与第一放热侧出口204相连，第三管路的另一端与第二放热侧入口503相连。
利用第一管路、第二管路和第三管路将储热罐103、第一介质罐6、第二介质罐7、第一换热器2和第二换热器5收尾相连由此实现介质在由储热罐103、第一换热器2和第二换热器5之间进行循环。
在一些实施例中，如图1所示，本公开实施例的能量梯级利用的光煤互补汽轮机系统100进一步包括低压缸403，低压缸403具有低压蒸汽入口4031和低压蒸汽出口4032，中压蒸汽出口4022与低压蒸汽入口4031相连。也就是说，热再热蒸汽通过中压蒸汽入口4021进入中压缸402内做功后，由中亚蒸汽出口排出后通过低压蒸汽出口4032进入低压缸403内进行做功。可以理解的是，将由中压缸402内排出的蒸汽通入低压缸403内再次做功，一方面能够提高蒸汽的能量利用率，使得由蒸汽发生装置3产生的蒸汽能够做更多的功。另一方面使得由汽轮机4排出的蒸汽的温度进一步的降低，从而降低了后续将蒸汽冷凝为液态水的能耗。因此，，本公开实施例的能量梯级利用的光煤互补汽轮机系统100通过设置低压缸403，大大的提高了能量梯级利用的光煤互补汽轮机系统100的能量利用率，并降低了能量梯级利用的光煤互补汽轮机系统100的能耗。
在一些实施例中，本公开实施例的能量梯级利用的光煤互补汽轮机系统100进一步包括冷凝装置8和除氧器903，冷凝装置8具有第一冷凝入口801和第一冷凝出口803，除氧器903具有第一除氧入口9031和第一除氧出口9034，第一冷凝入口801与低压蒸汽出口4032相连，第一冷凝出口803与第一除氧入口9031相连，第一除氧出口9034与第一进水口31相连。也就是说，由低压蒸汽出口4032排出的蒸汽通过第一冷凝入口801进入冷凝装置8内进行冷凝，蒸汽冷凝为液态水后由第一冷凝出口803排出后通过第一除氧入口9031进入除氧装置进行除氧，经过除氧后的液态水由第一除氧出口9034排出后通过第一进水口31进入蒸汽发生装置3内被再次加热形成主蒸汽，依次往复。
在一些实施例中，如图1所示，回热系统9还包括低加系统902。
高加系统901具有第一高加通道9011和第二高加通道9012相连，第一高加通道9011一端与第一除氧出口9034相连，第一高加通道9011另一端与第一进水口31相连。
除氧器903还具有第二除氧入口9032，第二高加通道9012的一端与第二除氧入口9032相连，第二高加通道9012另一端与高压缸401和中压缸402中的至少一者相连。
低加系统902具有第一低加通道9021，第一低加通道9021的一端与第一冷凝出口803相连，第一低加通道9021的另一端与第一除氧入口9031相连。冷凝装置8还具有第二冷凝入口802，低加系统902还具有第二低加通道9022，第二低加通道9022的一端与第二冷凝入口802相连，第二低加通道9022的另一端与低压缸403相连。
值得注意的是，第一高加通道9011和第二高加通道9012能够进行换热，第一低加通道9021和第二低加通道9022能够进行换热。也就是说，由低压缸403排出的蒸汽通过第二低加通道9022的另一端进入第二低加通道9022内，第一低加通道9021内的液态水与第二低加通道9022内的蒸汽进行换热，第一低加通道9021内的液态水的温度得以提升。第二低加通道9022内的蒸汽经过换热后冷凝为液态水由第二低加通道9022的一端排出后，通过第二冷凝出口进入冷凝装置8内，经过进一步冷凝液态水由第一冷凝出口803排出后通过第一低加通道9021的一端进入第一低加通道9021内并与第二低加通道9022内的蒸汽进行换热以提升温度。温度提升后的液态水由第一高加通道9011的另一端排出并通过第一除氧入口9031进入除氧装置内进行除氧。经过除氧的液态水由第一除氧出口9034排出并通过第一高加通道9011的一端进入第一高加通道9011内。由高压缸401和中压缸402排出的蒸汽通过第二高加通道9012的另一端进入第二高加通道9012内，第一高加通道9011内的液态水与第二高加通道9012内的蒸汽进行换热，第一高加通道9011内的液态水的温度得以提升。第二高加通道9012内的蒸汽经过换热后冷凝为液态水由第二高加通道9012的一端排出后，通过第二除氧入口9032进入除氧装置内进行除氧后，经过除氧后的液态水由第一除氧出口9034排出后通过第一高加通道9011的一端进入第一高加通道9011内并与 第二高加通道9012内的蒸汽进行换热以提升温度。温度提升后的液态水由第一高加通道9011的另一端排出并通过第一进水口31进入蒸汽发生装置3内被再次加热形成主蒸汽。
可以理解的是，回热系统9利用高压缸401和中压缸402中的蒸汽对第一高加管路90131中的液态水进行加热，利用低压缸403中的蒸汽对第一高加管路90131中的液态水进行加热。使得进入蒸汽发生装置3内的液态水的温度不会过低，进而可降低蒸汽发生装置3将液态水加热为主蒸汽所需的能量。因此，本公开实施例的能量梯级利用的光煤互补汽轮机系统100通过设置回热系统9大大的降低了本公开实施例的能量梯级利用的光煤互补汽轮机系统100的能耗。
在一些实施例中，如图1所示，高加系统901包括第一高加装置9013、第二高加装置9014和第三高加装置9015。第一高加装置9013具有第一高加管路90131，第一高加管路90131的一端与第一除氧出口9034相连。第二高加装置9014具有第二高加管路90141，第二高加管路90141的一端与第一高加管路90131的另一端相连。第三高加装置9015具有第三高加管路90151，第三高加管路90151的一端与第二高加管路90141的另一端相连，第三高加管路90151的另一端与第一进水口31相连。第一高加管路90131的腔室、第二高加管路90141的腔室和第一高加管路90131的腔室依次连通以形成第一高加通道9011。
第一高加装置9013还具有第一高加蒸汽入口90132和第一高加蒸汽出口90133，第一高加蒸汽出口90133与第二除氧入口9032相连，第二高加装置9014还具有第二高加蒸汽入口90142和第二高加蒸汽出口90143，第二高加蒸汽出口90143与第一高加蒸汽入口90132相连，第三高加装置9015还具有第三高加蒸汽入口90152和第三高加蒸汽出口90153，第三高加蒸汽出口90153与第二高加蒸汽入口90142相连，第三高加蒸汽入口90152与高压缸401和中压缸402中的一者相连。
第二高加装置9014还具有第四高加蒸汽入口90144，第四高加蒸汽入口90144与高压缸401和中压缸402中的一者相连。第一高加装置9013还具有第五高加蒸汽入口90134，第五高加蒸汽入口90134与高压缸401和中压缸402中的一者相连。
其中，第一高加蒸汽出口90133与第二除氧入口9032相连管路的腔室、第二高加蒸汽出口90143与第一高加蒸汽入口90132相连管路的腔室和第三高加蒸汽出口90153与第二高加蒸汽入口90142相连的腔室依次连通以形成第二高加通道9012。
高加系统901利用高压缸401和中压缸402中的蒸汽对第一高加管路90131中的液态水进行加热，使得进入蒸汽发生装置3内的液态水的温度不会过低，进而可降低蒸汽发生装置3将液态水加热为主蒸汽所需的能量。因此，本公开实施例的能量梯级利用的光煤互补汽轮机系统100通过设置高加系统901大大的降低了本公开实施例的能量梯级利用的光煤互补汽轮机系统100的能耗。
在一些实施例中，如图1所示，低加系统902包括第一低加装置9023、第二低加装置9024、第三低加装置9025和第四低加装置9026。第一低加装置9023具有第一低加管路90231，第一低加管路90231的一端与第一冷凝出口803相连。第二低加装置9024具有第二低加管路90241，第二低加管路90241的一端与第一低加管路90231的另一端相连。第三低加装置9025具有第三低加管路90251，第三低加管路90251的一端与第二低加管路90241的另一端相连。第四低加装置9026具有第四低加管路90261，第四低加管路90261的一端与第三低加管路90251的另一端相连，第四低加管路90261的另一端与第一除氧入口9031相连，第一低加管路90231的腔室、第二低加管路90241的腔室、第三低加管路90251的腔室和第四低加管路90261的腔室依次连通以形成第一低加通道9021。
第一低加装置9023还具有第一低加蒸汽入口90232和第一低加蒸汽出口90233，第一低加蒸汽出口90233与第二冷凝入口802相连。第二低加装置9024还具有第二低加蒸汽入口90242和第二低加蒸汽出口90243，第二低加蒸汽出口90243与第一低加蒸汽入口90232相连。第三低加装置9025还具有第三低加蒸汽入口90252和第三低加蒸汽出口90253，第三低加蒸汽出口90253与第二低加蒸汽入口90242相连。第四低加装置9026还具有第四低加蒸汽入口90262和第四低加蒸汽出口90263，第四低加蒸汽出口90263与第三低加蒸汽入口90252相连，第四低加蒸汽入口90262与低压缸403相连。第三低加装置9025还具有第五低加蒸汽入口90254，第五低加蒸汽入口90254与低压缸403相连。第二低加装置9024还具有第六低加蒸汽入口90244，第六低加蒸汽入口90244与低压缸403相连。第一低加装置9023还具有第七低加蒸汽入口90234，第七低加蒸汽入口90234与低压缸403相连。
其中，第一低加蒸汽出口90233与第二冷凝入口802相连管路的腔室、第二低加蒸汽出口90243与第一低加蒸汽入口90232相连管路的腔室、第三低加蒸汽出口90253与第二低加蒸汽入口90242相连管路的腔室和第四低加蒸汽出口90263与第三低加蒸汽入口90252相连管路的腔室依次相连以形成第二低加通道9022。
低加系统902利用低压缸403中的蒸汽对第一低加管路90231中的液态水进行加热，使得进入第一高加通道9011内的液态水的温度不会过低，进而使得进入蒸汽发生装置3内的液态水的温度也不会过低，由此可降低蒸汽发生装置3将液态水加热为主蒸汽所需的能量。因此，本公开实施例的能量梯级利用的光煤互补汽轮机系统100通过设置低加系统902大大的降低了本公开实施例的能量梯级利用的光煤互补汽轮机系统100的能耗。
在一些实施例中，如图2所示，蒸汽发生装置3包括蒸汽发生器33、第一蒸汽加热器34、第二蒸汽加热器35。
蒸汽发生器33具有第一进水口31、第三蒸汽出口3341和第四蒸汽出口3342；第一蒸汽加热器34包括第一加热进口3411和第一加热出口3431，第一加热进口3411与第三蒸 汽出口3341连通，第一加热出口3431与第一蒸汽出口32连通；和第二蒸汽加热器35包括第二加热进口3511和第二加热出口3531，第二加热进口3511与第四蒸汽出口3342连通，第二加热出口3531与第一蒸汽出口32连通。
在一些实施例中，如图2所示，本公开实施例的蒸汽发生装置3包括蒸汽发生器33、第一蒸汽加热器34和第二蒸汽加热器35。
蒸汽发生器33包括省煤器331、水冷壁332、汽水分离器333和水平低温过热器334。省煤器331具有第一进水口31，省煤器331、水冷壁332、汽水分离器333和水平低温过热器334依次连接。省煤器331和水冷壁332用于加热水从而产生蒸汽，汽水分离器333用于将蒸汽中为蒸发的水分离，被分离后的水重新回到水冷壁332加热蒸发，水平低温过热器334包括第三蒸汽出口3341和第四蒸汽出口3342。
第一蒸汽加热器34包括垂直低温过热器341、屏式过热器342和末级过热器343。其中，垂直低温过热器341包括第一加热进口3411，末级过热器343具有第一加热出口3431，第一加热进口3411与第三蒸汽出口3341连通，垂直低温过热器341、屏式过热器342和末级过热器343依次连通，从而加热蒸汽使蒸汽形成高温高压的主蒸汽。
第二蒸汽加热器35包括水平低温再热器351、垂直低温再热器352和末级再热器353。其中，水平低温再热器351包括第二加热进口3511，末级再热器353具有第二加热出口3531，第二加热进口3511与第四蒸汽出口3342连通，水平低温再热器351、垂直低温再热器352和末级再热器353依次连通，从而加热蒸汽使蒸汽形成高温高压的主蒸汽。
利用本公开实施例的能量梯级利用的光煤互补汽轮机系统100，水通过第一进水口31进入蒸汽发生器33加热形成蒸汽，一部分蒸汽从第三蒸汽出口3341排出经过第一加热进口3411进入第一蒸汽加热器34内加热形成高温高压的主蒸汽(.MPa，℃)，形成的主蒸汽通过第一加热出口3431排出。另一部分蒸汽从第三蒸汽出口3341排出经过第二加热进口3511进入第二蒸汽加热器35内加热形成高温高压的主蒸汽，形成的主蒸汽通过第二加热出口3531排出。分别经过第一蒸汽加热器34和第二蒸汽加热器35加热后形成的主蒸汽通过第一蒸汽出口32排出。
相关技术中的锅炉包括蒸汽发生器33、过热器和再热器，其中蒸汽发生器33具有第一出口90112和第二出口，过热器具有蒸汽进口和主蒸汽出口，再热器包括冷再热蒸汽进口和热再热蒸汽出口。第一出口90112和第二出口均与蒸汽进口连通，蒸汽从第一出口90112和第二出口排出并进入过热器内加热形成主蒸汽，主蒸汽通过主蒸汽出口排出以便汽轮机4的高压缸401使用。高压缸401内做功后产生的冷再热蒸汽需再次回到传统锅炉内，并经过冷再热蒸汽进口进入的再热器内加热形成热再热蒸汽，热再热蒸汽从热再热蒸汽出口排出以便中压缸402使用。
本公开实施例的能量梯级利用的光煤互补汽轮机系统100的蒸汽发生装置3可以利用相关技术中锅炉进行简单的改造，将相关技术中的锅炉的蒸汽发生器33的第一出口90112与蒸汽进口断开连接，并将再热器的冷再热蒸汽进口与蒸汽发生器33的第一出口90112相连，使再热器与过热器一起加热蒸汽发生装置3产生的蒸汽。从而仅需对传统锅炉内的部分管路进行改造就可以使传统锅炉适配本公开实施例的能量梯级利用的光煤互补汽轮机系统100，无需对传统锅炉进行大规模的改造或者花费成本制造蒸汽发生装置3，因此，本公开实施例的光热与燃煤互补的汽轮机4系统的蒸汽发生装置3易于利旧改造，具有布置成本低的优点。
在一些实施例中，除氧器903还具有第三除氧入口9033，第三除氧入口9033与中压缸402相连以接收中压缸402排出的液态水。
本公开实施例还提供了一种发电系统，包括发电机200和上述实施例所述的能量梯级利用的光煤互补汽轮机系统100。本公开实施例提供的发电系统通过采用能量梯级利用的光煤互补汽轮机系统100，具有使用成本低、能耗少以及环保的优点。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本公开的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本公开中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
在本公开中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本公开中，术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本公开的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本公开的限制，本领域的普通技术人员在本公开的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种能量梯级利用的光煤互补汽轮机系统，其特征在于，包括：
    第一介质罐，所述第一介质罐具有第一介质入口和第一介质出口；
    第二介质罐，所述第二介质罐具有第二介质入口和第二介质出口；
    光热系统，所述光热系统具有第三介质入口和第三介质出口，所述第三介质出口与所述第一介质入口相连，所述第三介质入口与所述第二出口相连；
    第一换热器，所述第一换热器具有第一吸热侧入口、第一吸热侧出口、第一放热侧入口和第一放热侧出口，所述第一放热侧入口与所述第一介质出口相连；
    第二换热器，所述第二换热器具有第二吸热侧入口、第二吸热侧出口、第二放热侧入口和第二放热侧出口，所述第二放热侧出口与所述第二介质入口相连，所述第二放热侧入口与所述第一放热侧出口相连；
    蒸汽发生装置，所述蒸汽发生装置具有第一进水口与第一蒸汽出口；
    汽轮机，所述汽轮机包括高压缸和中压缸，所述高压缸具有高压蒸汽入口和高压蒸汽出口，所述高压蒸汽入口与所述第一蒸汽出口相连，所述高压蒸汽出口与所述第一吸热侧入口相连；
    所述中压缸具有中压蒸汽入口和中压蒸汽出口，所述中压蒸汽入口与所述第一吸热侧出口相连；
    回热系统，所述回热系统包括高加系统，所述高加系统具有第一高加通道，所述第一高加通道的一端与所述中压缸相相连，所述第一高加通道的另一端与所述第一进水口相连，所述第一高加通道具有第一进口和第二出口，所述第一进口与所述第二吸热侧出口相连，所述第一出口与所述第二吸热侧出口相连。
  2. 根据权利要求1所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，还包括：
    第一管路，所述第一管路的一端与所述第一介质出口相连，所述第一管路的另一端与所述第一放热侧入口相连。
    第二管路，所述第二管路的一端与所述第二介质入口相连，所述第二管路的另一端与所述第二放热侧出口相连。
    第三管路，所述第三管路的一端与所述第一放热侧出口相连，第所述三管路的另一端与所述第二放热侧入口相连。
  3. 根据权利要求1或2所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，进一步包括低压缸，所述低压缸具有低压蒸汽入口和低压蒸汽出口，所述中压蒸汽出口与所述低压蒸汽入口相连。
  4. 根据权利要求3所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，进一步包括冷凝装置和除氧器，所述冷凝装置具有第一冷凝入口和第一冷凝出口，所述除氧器具有第一除氧入口和第一除氧出口，所述第一冷凝入口与所述低压蒸汽出口相连，所述第一冷凝出口与所述第一除氧入口相连，所述第一除氧出口与所述第一进水口相连。
  5. 根据权利要求4所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，所述回热系统还包括低加系统，
    所述第一高加通道一端与所述第一除氧出口相连，所述第一高加通道另一端与所述第一进水口相连；
    所述高加系统还具有第二高加通道，所述第二高加通道的一端与所述第一除氧出口相连，所述第二高加通道另一端与所述高压缸和所述中压缸中的至少一者相连；
    所述低加系统具有第一低加通道，所述第一低加通道的一端与所述第一冷凝出口相连，所述第一低加通道的另一端与所述第一除氧入口相连；
    所述冷凝装置还具有第二冷凝入口，所述低加系统还具有第二低加通道，所述第二低加通道的一端与第二冷凝入口相连，所述第二低加通道的另一端与所述低压缸相连。
  6. 根据权利要求5所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，所述高加系统包括：
    第一高加装置，所述第一高加装置具有第一高加管路，所述第一高加管路的一端与所述第一除氧出口相连；
    第二高加装置，所述第二高加装置具有第二高加管路，所述第二高加管路的一端与所述第一高加管路的另一端相连；
    第三高加装置，所述第三高加装置具有第三高加管路，所述第三高加管路的一端与所述第二高加管路的另一端相连，所述第三高加管路的另一端与所述第一进水口相连，所述第一高加管路的腔室、所述第二高加管路的腔室和所述第三高加管路的腔室依次连通以形成所述第一高加通道；
    所述除氧器还具有第二除氧出口，所述第一高加装置还具有第一高加蒸汽入口和第一高加蒸汽出口，所述第一高加蒸汽出口与所述第二除氧出口相连，
    所述第二高加装置还具有第二高加蒸汽入口和第二高加蒸汽出口，所述第二高加蒸汽出口与所述第一高加蒸汽入口相连，
    所述第三高加装置还具有第三高加蒸汽入口和第三高加蒸汽出口，所述第三高加蒸汽出口与所述第二高加蒸汽入口相连，所述第三高加蒸汽入口与所述高压缸和所述中压缸中的一者相连，
    所述第二高加装置还具有第四高加蒸汽入口，所述第四高加蒸汽入口与所述高压缸和所述中压缸中的一者相连；
    所述第一高加装置还具有第五高加蒸汽入口，所述第五高加蒸汽入口与所述高压缸和所述中压缸中的一者相连。
  7. 根据权利要求5或6所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，所述低加系统包括：
    第一低加装置，所述第一低加装置具有第一低加管路，所述第一低加管路的一端与所述第一冷凝出口相连；
    第二低加装置，所述第二低加装置具有第二低加管路，所述第二低加管路的一端与所述第一低加管路的另一端相连；
    第三低加装置，所述第三低加装置具有第三低加管路，所述第三低加管路的一端与所述第二低加管路的另一端相连；
    第四低加装置，所述第四低加装置具有第四低加管路，所述第四低加管路的一端与所述第三低加管路的另一端相连，所述第四低加管路的另一端与所述第一除氧入口相连；所述第一低加管路的腔室、所述第二低加管路的腔室、所述第三低加管路的腔室和所述第四低加管路的腔室依次连通以形成所述第一低加通道，
    所述第一低加装置还具有第一低加蒸汽入口和第一低加蒸汽出口，所述第一低加蒸汽出口与所述第二冷凝入口相连，
    所述第二低加装置还具有第二低加蒸汽入口和第二低加蒸汽出口，所述第二低加蒸汽出口与所述第一低加蒸汽入口相连，
    所述第三低加装置还具有第三低加蒸汽入口和第三低加蒸汽出口，所述第三低加蒸汽出口与所述第二低加蒸汽入口相连，
    所述第四低加装置还具有第四低加蒸汽入口和第四低加蒸汽出口，所述第四低加蒸汽出口与所述第三低加蒸汽入口相连，第四低加蒸汽入口与所述低压缸相连，
    所述第三低加装置还具有第五低加蒸汽入口，所述第五低加蒸汽入口与所述低压缸相连，
    所述第二低加装置还具有第六低加蒸汽入口，所述第六低加蒸汽入口与所述低压缸相连，
    所述第一低加装置还具有第七低加蒸汽入口，所述第七低加蒸汽入口与所述低压缸相连。
  8. 根据权利要求1至7中任一项所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，所述蒸汽发生装置包括：
    蒸汽发生器，所述蒸汽发生器具有所述第一进水口、第三蒸汽出口和第四蒸汽出口；
    第一蒸汽加热器，所述第一蒸汽加热器包括第一加热进口和第一加热出口，所述第一加热进口与所述第三蒸汽出口连通，所述第一加热出口与所述第一蒸汽出口连通；和
    第二蒸汽加热器，所述第二蒸汽加热器包括第二加热进口和第二加热出口，所述第二加热进口与所述第四蒸汽出口连通，所述第二加热出口与所述第一蒸汽出口连通。
  9. 根据权利要求4至8中任一项所述的能量梯级利用的光煤互补汽轮机系统，其特征在于，所述除氧器还具有第三除氧入口，所述第三除氧入口与所述中压缸相连。
  10. 一种发电系统，其特征在于，包括：
    发电机，
    汽轮机系统，所述汽轮机系统为如权利要求1至9中任一项所述的能量梯级利用的光煤互补汽轮机系统。
PCT/CN2023/090449 2022-08-17 2023-04-24 能量梯级利用的光煤互补汽轮机系统及发电系统 WO2024037027A1 (zh)

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