Compressed air is collected as the electricity generation system of power using wind-forceTechnical field
The utility model belongs to wind power generation energy accumulation technical field, collects compressed air using wind-force more particularly to a kind ofElectricity generation system as power.
Background technique
It is well known that wind energy is clean renewable energy, cost of electricity-generating is low, and THE WIND ENERGY RESOURCES IN CHINA amount is abundant, and windPower technology is more mature, therefore the following wind-powered electricity generation will be renewable energy power generation mode that China gives priority to, the scale of developmentWith speed, China's energy-saving and emission-reduction strategy and country will be directly related to about adjustment and Optimization of Energy Structure, improve renewable energyThe target of source ratio.
However, exposing problems in wind-powered electricity generation fast development, there is interval as one of renewable energy in wind energyProperty and the poor two fatal problems of stability, in the high load capacity demand period of power grid, wind-powered electricity generation be it is insecure, in underload periodBut the power that a large amount of power grids are difficult to dissolve may be issued.In this way, relying on the power grid of wind power generation on a large scale may generate seriouslySafety and stability problem, the contradiction that large-scale wind power sends out consumption become increasingly conspicuous, the problem of " abandonment ", is gradually serious.According toStatistics, wind-powered electricity generation enterprise, which abandons electricity and accounts for about, in recent years should generate electricity the 1/3 of total amount, cause the wasting of resources of flood tide, while pacifying to power gridFull stable operation and the sustainable development of wind-powered electricity generation propose double challenge.Due to the unstability of wind resource, electrical thermal storage is systemAbout one of the main bottleneck that utilizes on a large scale of wind-powered electricity generation.How these intermittent energies " splicing " to be got up using energy accumulating technique,And steadily export, it is that utilization must solve the problems, such as on a large scale for raising renewable energy ratio and renewable energy.
Disadvantage mentioned above can greatly be avoided by using energy-storage system.However the savings of electric energy be it is difficult and expensive,Most common accumulation mode-lead-acid battery is such as used, although its technology has reached quite mature stage, scale, costEtc. factors limit its application in long-range stand-alone program, the cost of every kilowatt hour is several hundred dollars, is used for high-power storageIt can be almost impossible.In addition, battery maintenance and self discharge are also associated technical bottleneck, while can also prestige be caused to environmentThe side of body.
Compressed-air energy storage (CAES) is a kind of generally acknowledged potential extensive energy storage mode, its energy storage cost compared withIt is low, to the pollution very little of environment.In a typical compressed air system, in the underload period of power grid, a part of electric energyFor driving air compressor.The air of compression is stored in certain specific space (such as underground karst cavity or artificial air storage chamber)In.Then, in electricity peak period, the pressure-air of compression is released, by expansion driven turbine power generation.Compressed airEnergy-storage system wants using gas fuel, usually natural gas, and burns in compressed air to improve the temperature of compressed air, fromAnd improve the efficiency of system.Different from traditional gas turbine power generation, CAES system provides compressed air by air storage chamber, reducesDemand for fuel when unit operation.
China's wind energy deposit is abundant, and is evenly distributed, and in order to realize the high-quality utilization of wind-power electricity generation, proposes a kind of wind-force hairThe integral system and integrated approach of electricity and extensive accumulation of energy are very important, and this system is in low power consumption when power gridWhen, by the integrated of wind-powered electricity generation and compressed-air energy-storage system, multistage compressor system compresses are driven with all or part of wind-powered electricity generationAir simultaneously stores pressure-air；In peak of power consumption, driving gas turbine power generation supply power grid is released.In this waySystem greatly increase the utilization rate of wind energy and benefit, the safety and stability of power grid also greatly improved simultaneously.
Summary of the invention
The utility model is to solve technical problem present in well-known technique and provide a kind of empty using wind-force collection compressionElectricity generation system of the gas as power.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique:
It is a kind of to collect compressed air as the electricity generation system of power using wind-force, it is characterised in that: including wind collecting systemSystem, air compressor, air cleaning unit, compressed-air energy storage device, compressed air expanding machine and generator；
Wherein, the wind collecting system includes tower bucket, is mounted on the power device of tower bucket upper end, the power deviceAir compressor is connected by actuating unit；The power device includes casing, and vertical tower bucket direction is mounted on casingLine shaft, sharf is connected by clutch in line shaft, blade is installed in the outer end of the sharf, described in casingDriving bevel gear is installed on line shaft；The actuating unit includes the transmission being mounted in tower bucket along tower bucket short transverseAxis, the upper end of the transmission shaft are equipped with the passive bevel gear of first engaged with driving bevel gear；The lower end of the transmissionSecond passive bevel gear is installed, the second passive bevel gear engages the passive bevel gear of third, the passive bevel gear peace of thirdOn second driving shaft, the second driving shaft extends tower bucket pedestal, the second driving shaft connection air compressorLine shaft, the air inlet of the air compressor are equipped with filter, and the gas outlet of the air compressor passes through the first high pressureAppendix connects air cleaning unit；
The air cleaning unit includes several concatenated purifying tubes, and the gas outlet of final stage purifying tube lower end is high by secondPress the inlet end of appendix connection compressed-air energy storage device；The pressure duct is equipped with check valve and electric-controlled ball valve；The pressureThe outlet side of contracting air accumulator is equipped with pressure reducing valve, and the pressure reducing valve connects air compressing expansion machine by appendix, describedThe power output end of air compressing expansion machine connects generator, and the generator is connected to the power distribution cabinet of power grid connection；
It further include worm gear supercharging heat reclaiming system；The worm gear supercharging heat reclaiming system includes worm wheel pressure booster, instituteThe air inlet connection air compressing expansion machine exhaust outlet of the tail gas worm gear of worm wheel pressure booster is stated, the gas outlet of tail gas worm gear connects rowGas tail pipe；The air inlet that worm gear increases the air inlet worm gear of device connects the air filter being communicated with the atmosphere；The outlet of air inlet worm gearMouth passes through heat-resisting piping connection air compressing expansion machine or hot gas reservoir.
The utility model can also use following technical measures:
It further include heat reclaiming system, the heat reclaiming system includes the heat exchange box for containing heat transferring medium, describedFirst high pressure gas pipeline is coiled in heat exchange box, and the heat exchange box connection provides the water pump of medium circulation, the water inlet of heat exchange boxConnect heat transferring medium；The water outlet of heat exchange box connects heat-storage medium case；Water-supply-pipe between the heat-storage medium case and heat exchange boxRoad is equipped with the controller of control pump working state；Subscriber unit is connected outside the water outlet of the heat-storage medium case.
It further include cold air recovery system, the cold air recovery system includes the tailpipe for connecting the gas outlet of tail gas worm gearCold air transfer pipeline, the cold air transfer pipeline connects cold air subscriber unit.
The utility model has the advantages and positive effects of: the utility model have benefit of peak regulation, to electric network security,Stability enhancing and power supply quality improve bring benefit, and can reduce investment cost, reduce discharge；Valley-fill benefit, byIn making the wind-powered electricity generation that can only be dropped originally be fully utilized using compressed air accumulation of energy, wind-powered electricity generation on-road efficiency is improved.ThusNew system can further promote the development of renewable energy power generation.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of the embodiments of the present invention；
Fig. 2 is 2 structural schematic diagram of the embodiments of the present invention；
Fig. 3 is 3 structural schematic diagram of the embodiments of the present invention.
In figure: 10, wind collecting system；11, tower bucket；11-1, tower bucket pedestal；12, power device；12-1, casing；12-2, line shaft；12-3, sharf；12-4, blade；12-5, driving bevel gear；12-6, clutch；13, actuating unit；13-1, transmission shaft；13-2, the first passive bevel gear；13-3, the second passive bevel gear；The passive bevel gear of 13-4, third；13-5,Second driving shaft；20, air compressor；21, air filter；22, the first high pressure gas pipeline；30, air cleaning unit；31,Purifying tube；32, the second high pressure gas pipeline；33, check valve；34, electric-controlled ball valve；35, pressure reducing valve；40, compressed-air energy storage device；50, compressed air expanding machine；60, generator；70, heat reclaiming system；71, heat exchange box；72, water pump；73, heat-storage medium case；80, cold air recovery system；90, worm gear supercharging heat reclaiming system；91, tail gas worm gear；92, air inlet worm gear；93, air filtrationDevice；100, hot gas reservoir.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, andIt is described in detail with the accompanying drawings as follows:
Embodiment 1, referring to Fig. 1, a kind of collect compressed air as the electricity generation system of power, including wind energy using wind-forceAcquisition system 10, air compressor 20, air cleaning unit 30, compressed-air energy storage device 40, compressed air expanding machine 50 andGenerator 60；
Wherein, the wind collecting system 10 includes tower bucket 11, is mounted on the power device 12 of tower bucket upper end, described dynamicPower device connects air compressor 20 by actuating unit 13；The power device 12 includes casing 12-1, vertical tower bucketDirection is mounted on the line shaft 12-2 on casing, passes through clutch 12-6 connection sharf 12-3, the sharf in line shaftOuter end install blade 12-4, driving bevel gear 12-5 is installed on the line shaft in casing；The power transmission dressSetting 13 includes the transmission shaft 13-1 being mounted in tower bucket along tower bucket short transverse, and the upper end of the transmission shaft is equipped with and activeFirst passive bevel gear 13-2 of bevel gear engagement；The second passive bevel gear 13-3 is installed in the lower end of the transmission, and described theTwo passive bevel gears engage the passive bevel gear 13-4 of third, and the passive bevel gear of third is mounted on second driving shaft 13-5,The second driving shaft extends tower bucket pedestal 11-1, the line shaft of the second driving shaft 13-5 connection air compressor 20,The air inlet of the air compressor is equipped with filter 21, and the gas outlet of the air compressor passes through the first high pressure gas pipeline22 connection air cleaning units 30；
The air cleaning unit 30 includes several concatenated purifying tubes 31, and the gas outlet of final stage purifying tube lower end passes through theThe inlet end of two high pressure gas pipelines 32 connection compressed-air energy storage device 40；The pressure duct is equipped with check valve 33 and automatically controlled ballValve 34；The outlet side of the compressed-air energy storage device 40 is equipped with pressure reducing valve 35, and the pressure reducing valve connects air by appendixThe power output end of compressing expansion machine 50, the air compressing expansion machine connects generator 60, and the generator is connected to power gridThe power distribution cabinet of connection；
It further include worm gear supercharging heat reclaiming system 90；The worm gear supercharging heat reclaiming system includes worm wheel pressure booster,The air inlet of the tail gas worm gear 91 of the worm wheel pressure booster connects air compressing expansion machine exhaust outlet, and the gas outlet of tail gas worm gear connectsConnect tailpipe；The air inlet that worm gear increases the air inlet worm gear 92 of device connects the air filter 93 being communicated with the atmosphere；Air inlet snailThe gas outlet of wheel passes through heat-resisting piping connection air compressing expansion machine or hot gas reservoir 100；It is arranged by air compressing expansion machineThe high pressure low temperature residual air of port discharge will push the work of tail gas worm gear, be then discharged out low temperature exhaust gas, and worm gear increases the air inlet snail of deviceThe air filter sucking fresh air that wheel air inlet connection is communicated with the atmosphere, is collapsed into high temperature and pressure by air inlet worm gearHot gas, the hot gas generated at this time can be connected with air compressing expansion machine air inlet, improve the coefficient of expansion of compressed air, improveCapacity usage ratio also can connect hot gas accumulator, and the hot gas of high temperature and pressure carries out storage thermal energy by hot gas reservoir, when needIf the hot gas for opening storage can be fed directly to hot gas user terminal, such as hot-air mouth.
Embodiment 2, referring to Fig. 2, further including heat reclaiming system 70, the heat reclaiming system includes changing for containingThe heat exchange box 71 of thermal medium, first high pressure gas pipeline 22 are coiled in heat exchange box, and the heat exchange box connection provides medium and followsThe water inlet of the water pump 72 of ring, heat exchange box connects heat transferring medium；The water outlet of heat exchange box connects heat-storage medium case 73；The heat accumulationThe controller of control pump working state is installed on the hydraulic pipeline between medium box and heat exchange box；The heat-storage medium caseSubscriber unit is connected outside water outlet.
Embodiment 3, referring to Fig. 3, further including cold air recovery system 80, the cold air recovery system includes connection tail gas snailThe cold air transfer pipeline of the tailpipe of the gas outlet of wheel, the cold air transfer pipeline connect cold air subscriber unit.
The utility model has benefit of peak regulation, improves bring to electric network security, stability enhancing and power supply qualityBenefit, and investment cost can be reduced, reduce discharge；Valley-fill benefit, due to making to be lost originally using compressed air accumulation of energyThe wind-powered electricity generation of abandoning is fully utilized, and improves wind-powered electricity generation on-road efficiency.Thus new system can further promote renewable energy power generationDevelopment.
Furthermore wind energy can be converted into compressed air output and storage by the utility model, and is collected and producedThermal energy when raw pressure-air；Extra wind energy can be stored in the form of compressed air while power generation and can be withAccomplish cogeneration of heat and power；Electric energy can be converted to using the compressed air of storage when calm；The utility model can change existingWind-powered electricity generation layout be general mood electricity water cloth office, first develop the pneumatic power drive of distributed wind pressure and stocking system, can directly produceCompressed air can ignore that wind-power electricity generation-transfer efficiency-motor accounts for the loss of gross efficiency 30%-40%, and reduction is produced intoThis, reduces the possibility that tangible fossil resource becomes the toxic gas of invisible asphyxia, and the energy-storage system of the compressed air has nothingTime circulation and low pollution feature are limited, wind energy manufactures and stores compression sky when in particular with possible abandonment or can not temporarily dissolveGas, while can also heat, it is created when there is demand using compressed air power generation and is worth and can freeze, it is more to meet numerous usersKind demand.
The utility model can be used directly using the compressed air in air container to downstream industry, for example, this synthesisSystem embodiment is in sewage treatment plant in use, wind energy is transformed into compressed air by this system, with compressed air supply workProperty sludge bacterium go digestion sewage in organic matter；The electric energy of power grid trough period can also be replaced into wind energy by this integrated systemObtain compressed air.
Utilization and storage of the utility model as intermittent, probabilistic renewable energy, valley power resourceStorage and recycling, economical, safety, zero-emission and high efficiency, the especially condition in external environment acute variationUnder, it can be with long time continuous working and reliability with higher.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility modelLimitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations withModification, is all within the scope of the technical scheme of the utility model.