CN113898546A - Novel heat collection type hot air flow power generation system - Google Patents

Novel heat collection type hot air flow power generation system Download PDF

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Publication number
CN113898546A
CN113898546A CN202111220122.8A CN202111220122A CN113898546A CN 113898546 A CN113898546 A CN 113898546A CN 202111220122 A CN202111220122 A CN 202111220122A CN 113898546 A CN113898546 A CN 113898546A
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heat
molten salt
chimney
power generation
wall
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CN202111220122.8A
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Chinese (zh)
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公志炜
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Individual
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Priority to CN202111220122.8A priority Critical patent/CN113898546A/en
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    • 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
    • F03G6/02—Devices for producing mechanical power from solar energy using a single state working fluid
    • F03G6/04—Devices for producing mechanical power from solar energy using a single state working fluid gaseous
    • F03G6/045—Devices for producing mechanical power from solar energy using a single state working fluid gaseous by producing an updraft of heated gas or a downdraft of cooled gas, e.g. air driving an engine
    • 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
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/30—Wind motors specially adapted for installation in particular locations
    • F03D9/34—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures
    • F03D9/35—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects
    • F03D9/37—Wind motors specially adapted for installation in particular locations on stationary objects or on stationary man-made structures within towers, e.g. using chimney effects with means for enhancing the air flow within the tower, e.g. by heating
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/30—Solar heat collectors using working fluids with means for exchanging heat between two or more working fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/77—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00—Arrangements for storing heat collected by solar heat collectors
    • F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00—Details of absorbing elements
    • F24S70/60—Details of absorbing elements characterised by the structure or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
    • F24S80/60—Thermal insulation
    • 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
    • Y02E10/44—Heat exchange systems
    • 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
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E10/70—Wind energy
    • Y02E10/728—Onshore wind turbines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention discloses a novel heat-collecting type hot air flow power generation system, which relates to the technical field of new energy power generation and solves the technical problems in the prior art, and comprises a base, wherein a wind chimney is arranged on the base and comprises a wind chimney inner wall, a wind chimney outer wall is arranged on the outer side of the wind chimney inner wall, a heat insulation layer is arranged on the outer side of the wind chimney outer wall, a generator and a generator bearing frame are arranged in the wind chimney, a hot air flow turbine and a cyclone are arranged in the generator and the generator bearing frame through a generator shaft, an air heater is arranged in the wind chimney, and the air heater is connected with a heat storage system; the invention abandons the steam turbine and the water treatment system, the steam system, the condensing system, the water supply system and the like which are matched with the steam turbine, so that the system equipment is greatly reduced, the structure is simpler, the investment cost is lower, and the operation and maintenance cost is lower. Meanwhile, the system does not need to use water as a working medium, so that the system can be installed in gobi desert or even desert areas with good illumination conditions and no water resources.

Description

Novel heat collection type hot air flow power generation system
Technical Field
The invention relates to the technical field of new energy power generation, in particular to the technical field of a novel heat collection type hot air flow power generation system.
Background
In the coming years, a large amount of wind power and photovoltaic power are continuously connected to the grid, and the power grid regulation and control capability is further weakened. Because the heat storage cost is far lower than that of other forms of energy storage, the photo-thermal power generation not only can be used as a continuous and stable power supply to supply power to a power grid, but also can be used as a special heat storage peak regulation power plant. The photo-thermal power generation has the capacity of heat storage and peak regulation which are not available in wind power generation and photovoltaic power generation, so that the photo-thermal power generation can occupy an indispensable position in a clean energy link.
The existing photo-thermal power generation mainly comprises a groove type, a tower type and a Fresnel type, except for different heat collection modes, the power generation process is basically the same as that of a thermal power plant, and water is heated into steam by using a heat storage medium to drive a steam turbine and then drive a generator to generate power. The working mode has high investment cost, complex system, high failure rate and high operation and maintenance cost, most of the photo-thermal power generation systems are arranged in arid water-deficient areas of the northwest gobi desert, and the steam turbine needs a large amount of water resources, so that the running cost of the system is increased.
Disclosure of Invention
The invention aims to: in order to solve the technical problem, the invention provides a novel heat collection type hot air flow power generation system.
The invention specifically adopts the following technical scheme for realizing the purpose:
a novel heat collection type hot air flow power generation system comprises a base, wherein a wind chimney is arranged on the base and comprises a wind chimney inner wall, a wind chimney outer wall is arranged outside the wind chimney inner wall, a heat insulation layer is arranged between the wind chimney inner wall and the wind chimney outer wall, a generator and a generator bearing frame are arranged inside the wind chimney, a hot air flow turbine and a cyclone are arranged on the generator and the generator bearing frame through a generator shaft, an air heater is arranged inside the wind chimney, and the air heater is connected with a heat storage system.
The heat collection and heat storage system is a high-temperature molten salt system and comprises a high-temperature molten salt tank, a low-temperature molten salt tank and a reflector, and molten salt pumps are arranged at outlets of the high-temperature molten salt tank and the low-temperature molten salt tank.
The high-temperature molten salt tank is connected with the air heater through the molten salt pump, a temperature regulating valve is arranged between the molten salt pump and the air heater, the high-temperature molten salt tank is communicated with the high-temperature header through a pipeline, and the high-temperature header is fixed on the outer wall of the chimney through a steel stay cable and a support.
The low-temperature molten salt tank is connected with the air heater through a pipeline, the low-temperature molten salt tank is connected with the low-temperature header through a molten salt pump, and a flow regulating valve is arranged between the molten salt pump and the low-temperature header.
The high-temperature header and the low-temperature header are communicated through a heat absorption pipe, a heat insulation layer is arranged on one side of the heat absorption pipe, a vacuum heat collector is arranged on the other side of the heat absorption pipe, and the vacuum heat collector is matched with the reflector for use.
The inner bottom of the base is provided with an installation well, the base is provided with an air inlet, the air inlet is provided with an air adjusting door, and the air inlet is provided with a filter screen.
The vacuum heat collector comprises heat-conducting filler, one side of the heat-conducting filler is fixedly connected with a heat absorption pipe, one side of the heat-conducting filler is provided with a heat collection plate, the other side of the heat collection plate is fixedly connected with a glass support, a glass sheet is fixedly connected onto the glass support, and a vacuum cavity is formed between the glass sheet and the heat collection plate.
The invention has the following beneficial effects:
the system abandons the steam turbine and the water treatment system, the steam system, the condensing system, the water supply system and the like which are matched with the steam turbine, so that the system has the advantages of greatly reduced equipment, simpler structure, lower investment cost and lower operation and maintenance cost. Meanwhile, the system does not need to use water as a working medium, so that the system can be installed in gobi desert or even desert areas with good illumination conditions and no water resource.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic top view of a chimney according to an embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of the system arrangement of embodiment 1 of the present invention;
FIG. 4 is a schematic side view showing the structure of a vacuum heat collector according to example 1 of the present invention;
FIG. 5 is a schematic top view of the high temperature header of example 1 of the present invention;
FIG. 6 is a schematic structural view of a vacuum heat collector according to embodiment 1 of the present invention;
FIG. 7 is a schematic structural view of embodiment 2 of the present invention;
FIG. 8 is a schematic diagram showing the system arrangement in embodiment 2 of the present invention;
reference numerals: 1-pedestal, 2-chimney, 201-chimney inner wall, 202-chimney outer wall, 3-generator, 4-generator bearing frame, 5-generator shaft, 6-hot airflow turbine, 7-cyclone, 8-air heater, 9-high temperature molten salt tank, 10-low temperature molten salt tank, 11-molten salt pump, 12-pipeline, 13-high temperature header, 14-temperature regulating valve, 15-low temperature header, 16-flow regulating valve, 17-heat absorbing pipe, 18-reflector, 19-installation well, 20-air inlet, 21-regulating air door, 22-filter screen, 23-heat preservation layer, 24-vacuum heat collector, 25-heat conducting filler, 26-heat collecting plate, 27-glass support, etc, 28-glass sheet, 29-vacuum chamber, 30-mounting bracket, 31-low pressure compressor, 32-high pressure compressor, 33-nitrogen tank, 34-heat storage bin, 35-heat storage medium, 36-heat/heat storage heat exchanger, 37-valve a, 38-valve b, 39-valve c, 40-valve d, 41-valve e, 42-valve f, 43-valve g and 44-valve h.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 6, the present embodiment provides a novel heat collection type hot airflow power generation system, which includes a base 1, the base 1 is made of concrete, a chimney 2 is disposed on the base 1, the chimney 2 is circular, the chimney 2 includes a chimney inner wall 201, a chimney outer wall 202 is disposed outside the chimney inner wall 201, an insulating layer 23 is disposed outside the chimney outer wall 202, a generator 3 and a generator bearing frame 4 are disposed inside the chimney 2, the generator 3 and the generator bearing frame 4 are provided with a hot airflow turbine 6 and a cyclone 7 through a generator shaft 5, an air heater 8 is disposed inside the chimney 2, the air heater 8 is connected with a heat storage system, the heat collection and heat storage system is a high temperature molten salt system including a high temperature molten salt tank 9, a low temperature molten salt tank 10 and a reflecting mirror 18, the outlets of the high temperature molten salt tank 9 and the low temperature molten salt tank 10 are both provided with a molten salt pump 11, the high-temperature molten salt tank 9 is connected with an air heater 8 through a molten salt pump 11, a temperature regulating valve 14 is arranged between the molten salt pump 11 and the air heater 8, the high-temperature molten salt tank 9 is communicated with a high-temperature header 13 through a pipeline 12, the high-temperature header 13 is fixed on the outer wall 202 of the air chimney through a steel cable and a bracket, the low-temperature molten salt tank 10 is connected with the air heater 8 through a pipeline 12, the low-temperature molten salt tank 10 is connected with a low-temperature header 15 through a molten salt pump 11, a flow regulating valve 16 is arranged between the molten salt pump 11 and the low-temperature header 15, the high-temperature header 13 and the low-temperature header 15 are communicated through a heat absorbing pipe 17, one side of the heat absorbing pipe 17 is provided with a heat insulating layer 23, the other side of the heat absorbing pipe 17 is provided with a vacuum heat collector 24, the vacuum heat collector 24 is matched with a reflector 18 for use, the inner bottom of the base 1 is provided with an installation well 19, an air inlet 20 is formed in the base 1, an air adjusting valve 21 is arranged on the air inlet 20, a filter screen 22 is arranged on the air inlet 20, the vacuum heat collector 24 comprises a heat-conducting filler 25, one side of the heat-conducting filler 25 is fixedly connected with a heat absorbing pipe 17, one side of the heat-conducting filler 25 is provided with a heat collecting plate 26, the other side of the heat collecting plate 26 is fixedly connected with a glass support 27, a glass sheet 28 is fixedly connected on the glass support 27, a vacuum cavity 29 is formed between the glass sheet 28 and the heat collecting plate 26, all pipelines are provided with heat insulating layers 23, the reflector 18 reflects solar radiation energy onto the glass sheet 28 of the vacuum heat collector 24, the solar radiation energy enters the vacuum cavity 29 through the glass sheet 28 and is emitted to the heat collecting plate 26, the heat collecting plate 26 transmits the absorbed solar radiation heat to the heat absorbing pipe 17 through the heat-conducting filler 25, the molten salt pump 11 adjusts the flow rate of low-temperature molten salt in the low-temperature molten salt tank 10 through a flow adjusting valve 16 (so as to control the temperature of the high-temperature molten salt), and then transmits the low-temperature header through a pipeline 12 15, the low-temperature header 15 conveys the low-temperature molten salt to each heat-absorbing pipe 17, the heat-absorbing pipes 17 transmit heat to the low-temperature molten salt, the heat-absorbing temperature of the low-temperature molten salt rises and enters the high-temperature header 13, the high-temperature molten salt in the high-temperature header 13 enters the high-temperature molten salt tank 9 through a pipeline 12, the high-temperature molten salt in the high-temperature molten salt tank 9 is adjusted by the molten salt pump 11 through the temperature adjusting valve 14 (to control the air temperature) and then conveyed to the air heater 8 through the high-temperature molten salt inlet pipeline of the air heater, the air is filtered by the filter screen 22, the flow is adjusted by the air damper 21 and then enters the air pipe, the air pipe and the air heater 8 after absorbing the heat dissipated by the storage tanks, the mechanical pump and the conveying pipeline, the air is heated to rise in temperature, expand in volume and reduce density to form a lifting force, a rotary ascending air flow is generated after passing through the cyclone 7, the rotary ascending air flow drives the hot-flow turbine 6 to do work and finally discharged from the air chimney outlet, the hot gas turbine 6 drives the generator 3 to generate electricity through the generator shaft 5, and the high-temperature molten salt enters the low-temperature molten salt tank 10 from the low-temperature molten salt conveying pipeline at the outlet of the air heater after the temperature of the high-temperature molten salt is reduced after heat exchange through the air heater 8.
The system abandons the steam turbine and the water treatment system, the steam system, the condensing system, the water supply system and the like which are matched with the steam turbine, so that the system has the advantages of greatly reduced equipment, simpler structure, lower investment cost and lower operation and maintenance cost. Meanwhile, the system does not need to use water as a working medium, so that the system can be installed in gobi desert or even desert areas with good illumination conditions and no water resource.
Example 2
As shown in fig. 7 to 8, the present embodiment provides a novel heat collection type hot airflow power generation system, which includes a base 1, the base 1 is made of concrete, a chimney 2 is disposed on the base 1, the chimney 2 is circular, the chimney 2 includes a chimney inner wall 201, a chimney outer wall 202 is disposed outside the chimney inner wall 201, a heat insulation layer 23 is disposed outside the chimney outer wall 202, a generator 3 and a generator bearing frame 4 are disposed inside the chimney 2, the generator 3 and the generator bearing frame 4 are provided with a hot airflow turbine 6 and a cyclone 7 through a generator shaft 5, an air heater 8 is disposed inside the chimney 2, the air heater 8 is connected to a heat collection and storage system, the heat collection and storage system is a low temperature heat collection plate system, the low temperature heat collection plate system includes a heat collection plate 26, a mounting bracket 30, a pipe 12, a low pressure compressor 31, a high pressure compressor 32, and a heat collection plate system includes a heat collection plate 26, a mounting bracket 30, a pipe 12, a low pressure compressor 31, and a high pressure compressor 32, The heat storage device comprises a nitrogen tank 33, a heat storage bin 34 and a heat storage medium 35 (low-temperature heat storage medium such as cement), wherein an air inlet 20 is formed in a base 1, an air adjusting door 21 is arranged on the air inlet 20, a filter screen 22 is arranged on the air inlet 20, when heat is collected, a low-pressure compressor is started, a valve a37 is opened, nitrogen enters a heat collection plate 26 through a low-temperature nitrogen pipe, passes through a heat collection pipe for heat exchange, enters a high-temperature nitrogen pipe, enters a high-pressure compressor 32 through a valve f42, starts the high-pressure compressor 32, controls the temperature of an air heater 8 and the flow of the air heater 34 through the opening degrees of a regulating valve c39 and a valve d40, and returns to the nitrogen tank through a valve f42 after the heat exchange of the air heater 8. Valve b38, valve e41, valve h44 are closed. When heat is released: starting the low-pressure compressor 31, opening the valve b38, enabling low-temperature nitrogen to enter the heat collection bin 34, enabling the low-temperature nitrogen to enter the high-pressure compressor 32 through the valve h44 after heat exchange of the heat release/storage heat exchanger 36, starting the high-pressure compressor 32, controlling the temperature of the air heater through the adjusting valve c39, and enabling the high-temperature nitrogen to return to the nitrogen tank through the valve f42 after heat exchange of the air heater. Valve a37, valve d40, valve e41, and valve g43 are closed. The low pressure compressor 31 transmits the nitrogen in the nitrogen tank 33 to the heat absorption pipe 17 in the heat collection plate 26 through the pipeline 12, the heat absorber 17 transmits the heat to the low temperature nitrogen, the heat absorption temperature of the low temperature nitrogen rises to enter the high temperature nitrogen pipe, the high temperature nitrogen is further raised through the compression temperature of the high pressure compressor 32, one part of the nitrogen enters the air heater 8 to heat the air and then returns to the nitrogen tank 33, the other part of the nitrogen enters the heat storage bin 34, the heat storage medium 35 is heated through the heat release/heat storage heat exchanger 36 and then returns to the nitrogen tank 33, the air enters the air inlet pipe through the air inlet 20 through the air adjusting damper 21 after being filtered by the filter screen 22, the air enters the air heater 8 after absorbing the heat dissipated by the heat storage bin 34, each storage tank, the machine pump and the transmission pipeline, the air is raised by the heating temperature, expanded in volume and reduced in density to form the lift force, the cyclone 7 generates the rotary rising air flow, the rotating ascending airflow drives the hot airflow turbine 6 to do work and finally to be discharged from the outlet of the wind chimney 2, the hot airflow turbine 6 drives the generator 3 to generate electricity through the generator shaft 5, and after no heat energy exists in the heat collection area or when the system needs to increase load, the nitrogen low-pressure compressor 31 in the nitrogen tank 33 is compressed, enters the heat storage bin 34, exchanges heat with the heat storage medium 35 through the heat release/storage heat exchanger 36 to heat up, is further increased in compression temperature through the high-pressure compressor 32, enters the air heater 8 to heat air, and then returns to the nitrogen tank 33 through the pipeline.
The system has the advantages of simple structure, low investment cost and low operation and maintenance cost, does not need water as a working medium, can be installed in gobi desert or even desert areas with good illumination conditions and no water resources, does not need preheating, is fast to start and stop, has wide load adjusting range and fast adjusting speed, can be quickly adjusted from the minimum load to the maximum load range, and has high heat utilization rate because most of equipment, pipelines and storage tanks (heat storage bins) are installed in an air flow route and almost all heat dissipation loss is used for heating air.

Claims (7)

1. The utility model provides a novel heat-collecting type hot air flow power generation system, includes base (1), its characterized in that, is provided with wind chimney (2) on base (1), and wind chimney (2) are provided with wind chimney outer wall (202) including wind chimney inner wall (201), and wind chimney inner wall (201) outside is provided with wind chimney outer wall (202), and the outside of wind chimney outer wall (202) is provided with heat preservation (23), and the inside of wind chimney (2) is provided with generator (3) and generator bearing frame (4), generator (3) and generator bearing frame (4) are provided with hot air flow turbine (6) and cyclone (7) through generator shaft (5), and the inside of wind chimney (2) is provided with air heater (8), air heater (8) are connected with the heat-retaining system.
2. A novel heat collection type hot air flow power generation system according to claim 1, characterized in that the heat collection and storage system is a high temperature molten salt system comprising a high temperature molten salt tank (9), a low temperature molten salt tank (10) and a reflector (18), and the outlets of the high temperature molten salt tank (9) and the low temperature molten salt tank (10) are provided with molten salt pumps (11).
3. A novel heat collection type hot air flow power generation system according to claim 2, characterized in that the high temperature molten salt tank (9) is connected with the air heater (8) through a molten salt pump (11), a temperature regulating valve (14) is arranged between the molten salt pump (11) and the air heater (8), the high temperature molten salt tank (9) is communicated with the high temperature header (13) through a pipeline (12), and the high temperature header (13) is fixed on the outer wall (202) of the chimney through a steel cable and a bracket.
4. A novel heat collection type hot air flow power generation system according to claim 3, characterized in that the low temperature molten salt tank (10) is connected with the air heater (8) through a pipeline (12), the low temperature molten salt tank (10) is connected with the low temperature header (15) through a molten salt pump (11), a flow regulating valve (16) is arranged between the molten salt pump (11) and the low temperature header (15), and the low temperature header (15) is fixedly installed on the outer wall of the chimney.
5. A novel heat collection type hot air flow power generation system according to claim 4, characterized in that the high temperature header (13) and the low temperature header (15) are communicated with each other through a heat absorption pipe (17), one side of the heat absorption pipe (17) is provided with a heat insulation layer (23), the other side of the heat absorption pipe (17) is provided with a vacuum heat collector (24), and the vacuum heat collector (24) is used in cooperation with the reflector (18).
6. A novel heat collection type hot air flow power generation system according to claim 1, characterized in that the inner bottom of the base (1) is provided with an installation well (19), the base (1) is provided with an air inlet (20), the air inlet (20) is provided with a damper (21), and the air inlet (20) is provided with a filter screen (22).
7. A novel heat collection type hot air flow power generation system according to claim 4, characterized in that the vacuum heat collector (24) comprises a heat conduction filler (25), one side of the heat conduction filler (25) is fixedly connected with the heat absorption tube (17), one side of the heat conduction filler (25) is provided with a heat collection plate (26), the other side of the heat collection plate (26) is fixedly connected with a glass bracket (27), a glass sheet (28) is fixedly connected to the glass bracket (27), and a vacuum cavity (29) is formed between the glass sheet (28) and the heat collection plate (26).
CN202111220122.8A 2021-10-19 2021-10-19 Novel heat collection type hot air flow power generation system Pending CN113898546A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI798056B (en) * 2022-04-15 2023-04-01 國立高雄科技大學 Cyclone power generation device and power generation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI798056B (en) * 2022-04-15 2023-04-01 國立高雄科技大學 Cyclone power generation device and power generation method thereof

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