A kind of solar chimney generating equipment using compressed-air energy-storage system
Technical field
The invention belongs to steam-electric power plant technical fields, and in particular to it is a kind of using compressed-air energy-storage system too
Positive energy chimney generation equipment.
Background technique
As being constantly progressive for science and technology constantly increases with population, people are increasing to the utilization demand of the energy, stone
Not only reserves are limited but also after utilizing there is also serious environmental pollution to the conventional energy resources such as oil, coal, natural gas, in addition the energy
Frequently haunting for crisis, is necessarily required to clean production and living needs of the reproducible energy to meet people.It opens on a large scale at present
Sending out the clean reproducible energy utilized mainly includes solar energy, wind energy, biomass energy, and the solar energy per second for being irradiated to the earth can
The energy discharged up to 5,000,000 tons of standard coals, every solar energy for being irradiated to the earth for 40 minutes is just for the 1 year energy in the whole world
Consumption.It can be said that the energy exploitation and application potentiality of solar energy are very big.
Greenhouse effects refer to the greenhouse gases in atmosphere to the insulation effect of the earth, and can making indoor and outdoor, there are certain temperature
Difference.Stack effect refers to indoor air along there is the space of vertical bank to ramp up or decline, and air is caused to reinforce showing for convection current
As.
Solar chimney generating equipment master is greenhouse effects to be utilized and stack effect generates electricity.German J
Schlaich professor proposed solar chimney generation technology in 1978, and concrete principle is as follows:
When sun visible light (shortwave radiation) passes through the transparent glass of thermal-arrest canopy, air is heated in canopy, the sky after heating
Gas is discharged rapidly from radially about to center flow, and by chimney, to drive the wind turbine power generation in thermal-arrest canopy exit
Machine power generation.
For the generating efficiency of solar chimney generating equipment, by the intensity of stack effect and the intensity effect of greenhouse effects
It is larger, cause whole day day part power swing larger, especially night without sunlight irradiation or rainy days, relies solely on soil
Insulation effect possessed by heat be difficult to directly drive wind turbine generator and generate electricity.And with regard to current technology from the point of view of,
Solar chimney generation technology has that generating efficiency is lower.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of solar chimney power generations using compressed-air energy-storage system
Equipment, the present invention has rational design, improves solar chimney electricity generation system power swing problem by compressed-air energy-storage system,
Guarantee that solar chimney electricity generation system steadily efficiently operates, improves generating efficiency.
In order to achieve the above objectives, a kind of solar chimney generating equipment using compressed-air energy-storage system of the present invention
Including thermal-arrest canopy, thermal-arrest canopy upper end is connected to solar chimney, and solar chimney lower part is provided with several wind turbines, wind-force
Turbine is connected by the piston of speed change gear and compressor, and the gas outlet of compressor and the air inlet of high pressure tank connect,
The gas outlet of high pressure tank and the air inlet of heat exchanger connect, and heat collector, heat collector and storage are provided with above thermal-arrest canopy
The air inlet in hot cell hot end connects, and the air inlet of thermal storage unit hot end and heat exchanger connects, the output shaft of heat exchanger and expansion
The air inlet of machine connects, and the power output shaft of expanding machine and the rotor of generator connect, the gas outlet of heat exchanger and heat collector
Connection.
Further, radiator is set on the outside of compressor.
Further, radiator is arranged in chimney periphery.
Further, several wind turbines are circular layout centered on the axis of solar chimney.
Further, heat exchanger and expanding machine are provided with several, and all heat exchangers are connected in series, and all expanding machines connect
It connects on same root power output shaft.
Further, the gas outlet of heat exchanger passes through the connection of thermal storage unit cold end and heat collector.
Further, high pressure tank is arranged below thermal-arrest canopy or underground.
Further, heat collector is groove type heat collector.
Compared with prior art, the present invention at least has technical effect beneficial below, comprehensively considers solar chimney hair
Electric system power swing problem rises hot-air and is not directed through turbine hair using compressed-air energy-storage system come peak load shifting
Motor, and pass through the energy storage of compressor compresses air, then passing through slot type collecting system is pressure-air heating, finally in expanded machine
Acting drives electrical power generators, wherein is stored in valve of the pressure-air in high pressure tank by control high pressure tank
Flow control is carried out, is mixed into high temperature and high pressure gas after thermal storage unit regulates and controls with groove type heat collector institute's heat-collecting capacity.By to height
Warm pressure-air carries out flow control, and the energy that can be had more than needed at night to daytime is used, and can run at night
For a period of time, enhance the generating capacity of the equipment, improve solar chimney generating efficiency.
Further, radiator is set between compressor and high pressure tank, and radiator is arranged in chimney periphery radiator
The heat come out is used for the gas of heating solar chimney, realizes the recycling of thermal energy, while carrying out to compressor cold
But.
Further, all wind turbines are circular layout centered on the axis of solar chimney, by turbine annular cloth
Office is conducive to the acquisition to wind energy, the capture of energization.
Further, heat exchanger and expanding machine are provided with several, and all heat exchangers are connected in series, and all expanding machines connect
It connects on same root power output shaft, coaxially facilitates connection, structure is simple, reduces intermediate loss, may improve efficiency greatly to the greatest extent.
Further, the gas outlet of heat exchanger passes through the connection of thermal storage unit cold end and heat collector, and heat transferring medium is led to
It crosses thermal storage unit cold end and is transferred to heat collector, reuse.
Further, high pressure tank is arranged below thermal-arrest canopy or underground, does not have additional land occupation demand.
Further, heat collector is groove type heat collector.Required area is smaller, is arranged in thermal-arrest canopy near chimney,
The Heat-collecting effect of thermal-arrest canopy is had substantially no effect on.
Detailed description of the invention
Fig. 1 is operation principle schematic diagram of the present invention;
In attached drawing: 1- wind turbine, 2- speed change gear, 3- compressor, 4- radiator, 5- high pressure tank, 6- heat exchange
Device, 7- expanding machine, 8- generator, 9- thermal storage unit cold end, 10- heat collector, 11- thermal storage unit hot end, 12- pump, the 13- sun
Energy chimney, 14- thermal-arrest canopy.
Specific embodiment
Below in conjunction with Figure of description and embodiment, the present invention is described in further details, make the purpose of the present invention,
Technical solution and advantage are more clear.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance or the quantity for implicitly indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be bright
Show or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple " contain
Justice is two or more.
Referring to Fig.1, a kind of solar chimney generating equipment using compressed-air energy-storage system include solar chimney 13,
Thermal-arrest canopy 14, wind turbine 1, speed change gear 2, compressor 3, high pressure tank 5, radiator 4, heat exchanger 6, expanding machine 7, thermal-arrest
Device 10, thermal storage unit hot end 11 and thermal storage unit cold end 9 and pump 12, compressed-air energy-storage system includes wind turbine 1, speed change
Device 2, compressor 3, high pressure tank 5 and radiator 4.
Wherein: 14 upper end of thermal-arrest canopy is connected to solar chimney 13, and several wind turbines 1 are arranged in solar energy in a ring
14 near exit of chimney bottom thermal-arrest canopy, heat collector 10 is provided with above thermal-arrest canopy 14, and speed change gear 2 is gearbox, wind-force
The output shaft of turbine 1 and the input axis connection of gearbox, the output shaft of gearbox are connect with the piston of compressor 3, compressor 3
Gas outlet connect with the air inlet of high pressure tank 5, the gas outlet of high pressure tank 5 is connect with the air inlet of heat exchanger 6,
The output shaft of heat exchanger 6 is connect with the air inlet of expanding machine 7, and the power output shaft of expanding machine 7 and the rotor of generator connect, swollen
The gas outlet of swollen machine 7 is connected with waste gas recovering device, and the gas outlet of heat exchanger 6 is connect with thermal storage unit cold end 9, and thermal storage unit is cold
The connection at end 9 and heat collector 10, heat collector 10 are connect with the air inlet in thermal storage unit hot end 11, thermal storage unit hot end 11
Gas outlet is connect with the entrance of pump 12, is pumped 12 outlet and is connect with the air inlet of heat exchanger 6.Radiator 4 is arranged in outside chimney 13
Week.Wherein the effect of radiator 4 is cooled down to compressor 3, guarantees the normal operation of compressor 3, thermal storage unit cold end 9 and accumulation of heat
Unit hot end 11 is storage heater.
Preferably, heat exchanger 6 and expanding machine 7 are provided with 3, and 3 heat exchangers 6 are connected in series, and 3 expanding machines 7 connect
On same root power output shaft.
Preferably, wind turbine 1 drives compressor 3 through gearbox 2, saves generating equipment and motor.
Preferably, several compressors 3 are disposed in series in 14 near exit of thermal-arrest canopy, cooling using intercooled mode,
Generated heat is directly used in the air in heating solar chimney 13 in cooling procedure.Compressor 3 is outside thermal-arrest canopy 14
Environment sucks air, is different from the higher air of temperature of shed, ambient air temperature is lower, compressible.
High pressure tank 5 is arranged below thermal-arrest canopy 14 or underground for storing compressed pressure-air, does not have
Additional land occupation demand.
Slot type collecting system is made of heat collector 10, thermal storage unit hot end 11 and thermal storage unit cold end 9, passes through the thermal-arrest
Heat is transmitted to pressure-air by system, and pressure-air is made to enter expanding machine acting.Heat collector 10 is groove type heat collector, required face
Product is smaller, is arranged in thermal-arrest canopy 14 near chimney, has substantially no effect on to the Heat-collecting effect of thermal-arrest canopy 14.
Working principle of the present invention is as follows:
Present invention employs compressed-air energy-storage systems to carry out storage of higher pressures and slot type collecting system to high pressure sky to air
Gas is heated, and generated high pressure-temperature air enters the acting of expanding machine 7, and then generator 8 is driven to generate electricity, generated tail
Gas is discharged by solar chimney, can further be recovered energy.Specifically:
Compressed-air energy-storage system is directly driven by the wind turbine of solar chimney bottom thermal-arrest canopy near exit, the sun
Light penetrates the transparent cover plate of thermal-arrest canopy 14, is heated air in canopy, and the air after heating is radial to center flow, into the sun
Energy chimney 13, when being exported by thermal-arrest canopy 14, air accelerates under the action of stack effect, drives 13 bottom of solar chimney
The wind turbine 1 in portion rotates, and directly drives air compressor 3 through speed change gear 2, compressor 3 sucks surrounding air and pressed
Contracting, the generated heat exchange of compression process are directly used in the air in heating solar chimney 13 through radiator 4, press through compressor 3
Pressure-air after contracting will be stored in high pressure tank 5.
Sunlight is radiated on trough heat collection 10, and the air after collecting heat is stored in thermal storage unit hot end 11, is led to
After crossing pressure-air heat exchange of 12 extraction of pump in heat exchanger 6 and above-mentioned high pressure tank 5, generated high temperature and high pressure gas into
Enter the acting of expanding machine 7, so that driven generator 8 generates electricity.Wherein, high pressure tank 5 is located underground does not have additional land occupation need
It asks;Compressor 3 is connected, using cooling during rolling;Heat transferring medium after heat exchanger 6 is returned to slot type by thermal storage unit cold end 9
Heat collector 10;After the expanded machine 7 of high temperature and pressure air completes workmanship, generated tail gas is discharged by solar chimney 13,
The waste heat and kinetic energy of tail gas can further be recycled.
To night or rainy weather, the air after heat collector 10 heats passes through in heat exchanger 6 and high pressure tank 5
The unspent pressure-air heat exchange of storage forms pressure high temperature hot gas, and high temperature and high pressure gas enters the acting of expanding machine 7, from
And driven generator 8 generates electricity.Due to the thermal Finite that night or rainy weather heat collector are collected into, but still can and high pressure
The pressure-air heat exchange stored in air accumulator 5, continues to generate electricity, improves generating efficiency.