CN106704106A - Device capable of carrying out solar power generation and seawater desalination with combination of wind power pressurization chimney - Google Patents

Device capable of carrying out solar power generation and seawater desalination with combination of wind power pressurization chimney Download PDF

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Publication number
CN106704106A
CN106704106A CN201611022382.3A CN201611022382A CN106704106A CN 106704106 A CN106704106 A CN 106704106A CN 201611022382 A CN201611022382 A CN 201611022382A CN 106704106 A CN106704106 A CN 106704106A
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CN
China
Prior art keywords
chimney
thermal
wind
arrest canopy
power generation
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Pending
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CN201611022382.3A
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Chinese (zh)
Inventor
左潞
陈佳俊
周晓天
许波峰
唐植懿
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Hohai University HHU
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Hohai University HHU
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Priority to CN201611022382.3A priority Critical patent/CN106704106A/en
Publication of CN106704106A publication Critical patent/CN106704106A/en
Pending legal-status Critical Current

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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
    • 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
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/911—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose
    • F05B2240/9111—Mounting on supporting structures or systems on a stationary structure already existing for a prior purpose which is a chimney
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/141—Wind power
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Power Engineering (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Wind Motors (AREA)

Abstract

The invention discloses a device capable of carrying out solar power generation and seawater desalination with combination of a wind power pressurization chimney. The device comprises a seawater desalination device, a heat collector, a chimney, a turbine and a wind power pressurization device, wherein an H-shaped vertical axis wind turbine blade and a ventilator blade are in rigid connection with each other to form a whole at the top of the chimney; when the H-shaped vertical axis wind turbine blade is blown to rotate by high-altitude wind, the ventilator blade is also driven to rotate; due to negative pressure generated by the rotating ventilator blade, the pressure difference between inside and outside of the chimney is further increased, so that the emission of acted hot air flow in the chimney is accelerated, and the chimney effect is enhanced; through the wind power pressurization device, the negative pressure in the chimney is increased, so that the power generation capacity of a solar chimney power generation system is obviously improved; meanwhile, the by-product fresh water is also produced; the comprehensive utilization rate of the solar energy is greatly increased.

Description

It is a kind of to combine the device that wind-force boosting type chimney carries out solar power generation and desalinization
Technical field
The present invention relates to the use of solar energy to be generated electricity and field of sea water desalting technology, and in particular to a kind of combined solar The integration unit of chimney generation, wind power boosting and desalinization.
Background technology
With developing rapidly for global economy, the depletion rate of fossil fuel is increased, and energy supply and demand contradiction and environment are asked Topic is protruded very much, and Optimization of Energy Structure is extremely urgent.Solar energy can successfully manage energy as a kind of persistently energy of environmental protection The problems such as source shortage and climate change.
Solar chimney technological synthesis heat storage technology, chimney technology, wind turbine electric generation technology in one, with dimension Repair conveniently, be to realize one of large-scale development and the feasible way using solar energy the advantages of reliable, usage cycles are long, Possess huge application prospect.
Fresh water is indivisible necessity in our daily lifes, but in recent years, due to economic fast development, The expansion of population, shortage of fresh water problem has had resulted in serious threat to the mankind, and causes attention all over the world.Seawater Desalination is currently acquired a large amount of fresh water so as to solve the problems, such as one of most common method of shortage of fresh water.But, desalinization is A kind of mode of highly energy-consuming, the seawater desalination system driven by the use of regenerative resource in environment-friendly mode is used as a kind of innovation Method, has obtained extensive concern at present.
However, single solar chimney electricity generation system is typically less than 1% due to the conversion efficiency of solar energy, and it is bullied Wait and weather influence is very big, this solar chimney forms of electricity generation is difficult large-scale commercial.Solar chimney electricity generation system exists In the case that chimney height and thermal-arrest canopy radius are certain, the current density difference inside and outside system is influence system inside and outside differential pressure size Principal element.Because atmospheric density is small, although system can obtain the considerable inside and outside air-flow temperature difference, inside and outside current density difference is not Greatly, cause inside and outside air-flow differential also and less, this restrict the raising of system generated energy, this is system deficiency in itself.
Existing joint desalinization solar energy chimney generator, such as patent 200810021605.3 disclose a kind of profit The device of chimney generation and desalinization is carried out with solar energy, by solar power generation and solar energy sea water desalination apparatus combination one Rise, although improve the conversion efficiency of solar energy, while can additional fresh water output, but this system does not improve system The pressure difference of inside and outside air-flow, and because the fresh water that some energy in integrated system is condensed is taken away, result in the thermal-arrest of system Canopy interior air-flow temperature is slightly decreased, and the inside and outside differential pressure of integrated system is further reduced on the contrary, causes the decline of generated energy.
The content of the invention
It is an object of the invention to overcome deficiency of the prior art, there is provided one kind joint wind-force boosting type chimney is carried out Solar power generation and the device of desalinization, comprehensive utilization solar chimney are generated electricity and desalinization, by chimney top Portion installs H type vertical shaft wind impeller blades additional, allows H type vertical shaft wind impeller blades directly to drive ventilating vane to rotate and produces negative pressure, from And the negative pressure value inside whole chimney is improved, system generated energy not only is improve, while improve system fresh water yield.
In order to solve the above technical problems, the invention provides one kind joint wind-force boosting type chimney carry out solar power generation and The device of desalinization, it is characterized in that, including sea water desalinating unit, thermal-arrest canopy, chimney, turbine and wind power boosting device；
Thermal-arrest canopy includes thermal-arrest canopy base plate, the thermal-arrest canopy cover plate being covered in above thermal-arrest canopy base plate, thermal-arrest canopy cover plate and collection Horn-like diversion cavity is formed between hot canopy base plate；
The sea water desalinating unit includes the distillation bottom of pond groove positioned at bottom, and distillation bottom of pond groove sets along thermal-arrest canopy base plate annular Put, the outer rim side for distilling bottom of pond groove is provided with the sea intake and be located at that the brine outlet positioned at bottom is connected with sea water layer The water outlet of upper end；Multigroup glass partition support, two adjacent groups glass partition are radially equally spaced in distillation bottom of pond groove The upper end of support is angularly disposed glass partition, is provided with the lower end with glass partition low side junction on each glass partition support To the arc fresh water collecting apparatus by means that inside front extends, both drainage troughs are communicated between adjacent fresh water collecting apparatus by means along bottom, The exit connection water outlet of outermost layer drainage trough；
The chimney is vertical hollow cylinder, and the outlet of diversion cavity is connected with the lower port of chimney, and connected at both Center sets the turbine；
The wind power boosting device includes the supporting plate being arranged in upper chimney end mouthful cavity, and supporting plate center vertically connects Main shaft is connect, the lower end of main shaft is circumferentially provided with ventilating vane, and upper end circumferentially sets H type vertical shaft wind impeller blades, and H types are vertical The lower end of axle wind wheel blade is rigidly connected with ventilating vane.
Further, fresh water collecting apparatus by means is a ring-type for quadrant.
Further, distillation bottom of pond groove use absorptivity scope for 0.9~0.94 the stainless steel with selective coating Plate.
Compared with prior art, the beneficial effect that is reached of the present invention is：The present invention is increased by wind power boosting device Chimney internal negative pressure is so as to considerably improve the generated energy of solar chimney electricity generation system, while also attaching fresh water output, pole Improve solar energy composite utilization rate greatly.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention；
Fig. 2 is the partial structural diagram of sea water desalinating unit in apparatus of the present invention；
Fig. 3 is the partial enlarged drawing of glass partition support in sea water desalinating unit；
Fig. 4 is the top view of sea water desalinating unit；
Fig. 5 is H type vertical axis rotor pressure charging system partial enlarged drawings in apparatus of the present invention；
Fig. 6 is H type vertical axis rotor pressure charging system top views in apparatus of the present invention.
Reference：1st, sea water desalinating unit；11st, brine outlet；12nd, sea intake；13rd, water outlet；14th, seawater Layer；15th, fresh water collecting apparatus by means；16th, glass partition support；17th, glass partition；18th, drainage trough；19th, bottom of pond groove is distilled；2nd, thermal-arrest Canopy；21st, thermal-arrest canopy cover plate；22nd, thermal-arrest canopy base plate；3rd, turbine；4th, chimney；5th, wind power boosting device；51st, H types vertical shaft wind Impeller blade；52nd, ventilating vane；53rd, main shaft；54th, supporting plate；55th, bearing；56th, chimney wall.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention Technical scheme, and can not be limited the scope of the invention with this.
As shown in figure 1, a kind of joint wind-force boosting type chimney of the invention carries out the dress of solar power generation and desalinization Put, it is characterized in that, including sea water desalinating unit 1, thermal-arrest canopy 2, chimney 4, turbine 3 and wind power boosting device 5.
As shown in Fig. 2 thermal-arrest canopy 2 includes thermal-arrest canopy base plate 22, is covered in the thermal-arrest canopy cover plate of the top of thermal-arrest canopy base plate 22 21, form horn-like diversion cavity between thermal-arrest canopy cover plate 21 and thermal-arrest canopy base plate 22；Diversion cavity becomes narrow gradually from the bottom up.
Sea water desalinating unit 1 includes the distillation bottom of pond groove 19 positioned at bottom, (right side sea is only show in Fig. 2 as shown in Figure 2 The partial enlargement structure of water desalination apparatus), distillation bottom of pond groove 19 is set along the annular of thermal-arrest canopy base plate 22, outside distillation bottom of pond groove 19 Ring side is provided with the sea intake 12 that the brine outlet 11 positioned at bottom is connected with sea water layer 14 and the fresh water positioned at upper end goes out Mouth 13；Multigroup glass partition support 16, two adjacent groups glass partition support 16 are radially equally spaced in distillation bottom of pond groove 19 Upper end it is angularly disposed have glass partition 17, the annexation between glass partition support and glass partition is as shown in figure 3, glass , positioned at the bottom of the glass partition support 16 of inner side (being left side in figure), other end connection is positioned at outside for the connection of the one end of dividing plate 17 The interlude of glass partition support 16, is provided with inwardly on each glass partition support 16 in the lower end with glass partition low side junction The arc fresh water collecting apparatus by means 15 that side top extends, arcuately bottom is communicated with both drainage troughs between adjacent fresh water collecting apparatus by means 18, the exit connection water outlet 13 of outermost layer drainage trough 18.
Distillation bottom of pond groove 19 is the stainless steel plate with coating for selective absorption, and absorptivity is between 0.9~0.94.
The annexation of fresh water collecting apparatus by means and drainage trough is as shown in figure 4, glass partition support 16 and fresh water collecting apparatus by means 15 are Around the distribution of thermal-arrest canopy center ring by ring, the fresh water for obtaining is condensed from glass partition 17 and is fallen along glass partition support 16 In entering fresh water collecting apparatus by means 15, if without drainage trough 18, then produced fresh water only can be in the fresh water collecting of the another ring of a ring In device 15, it is impossible to be discharged to outside；And a connection is opened in the effect of drainage trough 18 between adjacent fresh water collecting apparatus by means Passage, allows the UNICOM of all of fresh water collecting apparatus by means 15, and then is flowed out from water outlet 13.
Fresh water collecting apparatus by means 15 is preferably a ring-type for quadrant, is fixed on glass partition support 16.Rule Arc-shaped can be conducive to quickly collecting fresh water.
Chimney 4 is vertical hollow cylinder, and the outlet of diversion cavity is connected with the lower port of chimney 4, and in both connect The turbine 3 is set at the heart；
The wind power boosting device 5 includes the supporting plate 54 being arranged in the upper port cavity of chimney 4, such as Fig. 5 and Fig. 6 institutes Show, the outer circumference of supporting plate 54 is fixed on chimney wall 56, the center of supporting plate 54 vertically connects main shaft by bearing 55 53, the lower end of main shaft 53 is circumferentially provided with ventilating vane 52, and upper end circumferentially sets H type vertical shaft winds impeller blade 51, and H types hang down D-axis wind wheel blade 51 is rigidly connected with ventilating vane 52.Ventilating vane 52, can play a supporting role, but can produce from The exhausting effect of bottom.Supporting plate 54 is the steel plate for being circumferentially provided with multiple two vertical plates, plays a part of supports main shaft, while Supporting plate 54 also acts as water conservancy diversion effect.Because air-flow after turbine 3 by having rotation, in the resistance that the inside of chimney 4 is subject to It is smaller, so this rotation may be maintained to chimney breast, therefore install two vertical plates additional and can just play water conservancy diversion effect.
The operation principle of apparatus of the present invention is that outside air flows into thermal-arrest canopy 2 through the import of thermal-arrest canopy, through thermal-arrest canopy cover plate A 21 solar radiation part is reflected away from glass partition 17, remaining transmitted through glass partition 17 heat by sea water layer 14 and Distillation bottom of pond groove 19 is absorbed, and ocean temperature is raised and evaporated, while sea intake 12 supplements seawater with certain speed, makes sea water layer 14 are maintained at constant altitude.It is because the solar energy that glass partition 17 absorbs is little and directly scattered to the air-flow inside thermal-arrest canopy 2 Heat, therefore the temperature of glass partition 17 is less than the water temperature of sea water layer 14, therefore will pass through between sea water layer 14 and glass partition 17 Radiation, convection current and evaporation carry out heat exchange, and evaporation of seawater simultaneously forms steam.Steam can be condensed into the lower surface of glass partition 17 The globule.Glass partition 17 has a suitable inclination angle, and the globule will be flowed down along glass partition 17, fallen light under gravity In water collector 15, then water outlet 13 is flowed to by drainage trough 18, and the strong brine for distilling bottom of pond groove 19 is gone out by strong brine Mouth 11 is discharged.
While fresh water is produced, the air current flow of thermal-arrest canopy 2 to the bottom of chimney 4, the density decline of air-flow, system is flowed into Inside and outside density contrast is increased, and stack effect aggravation, draft reaches maximum, and air-flow is able to rise and discharges, while outside air is through collection The import of hot canopy 2 is continuously supplemented in come to reach dynamic equilibrium.Density contrast and pressure difference are maximum inside and outside the bottom of chimney 4, Therefore axial flow wind turbines 3 are being set herein, ascending air promotes the blade rotation of turbine 3, and drives corresponding hair Motor is generated electricity.Turbine 3 consumes thermal current major part pressure potential and part kinetic energy, and remaining fraction pressure Potential energy and kinetic energy are used to drive thermal current to continue on chimney 4 and rise, and the temperature of air-flow is gradually reduced in uphill process, and enthalpy drop turns It is gravitional force to be melted into, and the speed of air-flow is slightly decreased, then in thermal current inflow wind power boosting device 5.
Because aerial wind speed high is larger, when high-altitude natural wind blows the rotation of H type vertical shaft winds impeller blade 51, can also drive logical The rotation of fan blade 52, the negative pressure of the generation of ventilating vane 52 of rotation accelerates the row of the thermal current that work(is finished in chimney Go out, the inside and outside differential pressure of chimney 4 is further increased, and enhances stack effect, so as to improve the shaft power of turbine 3.
In Spain's solar chimney prototype, chimney height Hc=200m, Diameter of chimney Dc=10m；Thermal-arrest canopy diameter Dcoll=244m, thermal-arrest canopy inlet height Hin=2m, outlet height Hout=8m.Stable state meteorological condition, solar radiation are taken in analysis Intensity I=800W/m2, environment temperature Ta=298.15K, external environment density pa=1.225kg/m3。
In single solar chimney electricity generation system, from the import of thermal-arrest canopy to exit flow temperature rise Mass flow m=ρ π Dc 2V, chimney inlet air flow speedη in above formulacIt is recuperation layer efficiency；CpIt is air Specific heat at constant pressure, unit J/ (kgK)；ρ is current density, units/kg/m3；By three solving simultaneous equations obtain three it is unknown The value of amount, Δ T=12.26K, m=1220kg/s, v=12.7m/s.System draftAir-flow Power Pm=Δ pm/ ρ=94.93kW.Take turbine efficiency ηt=0.4, power output P=ηt·Pm=38kW.Solar energy is comprehensive Close utilization rate
In joint desalinization solar chimney electricity generation system, recuperation layer is replaced by glass partition, due to a part of energy Measure for desalinization, cause air-flow temperature rise reduction, air velocity declines.Now system draft Air-flow power Pm=Δ pm/ ρ=76.1kW, power output P=ηt·Pm=30.4kW, while producing fresh waterWherein qeIt is evaporation of seawater rate of heat transfer, unit W/m2, hwIt is the seawater unit area latent heat of vaporization, it is single Position J/ (kgm2), solar energy composite utilization rate
In the joint desalinization solar chimney electricity generation system that wind power boosting device of the invention drives, when H types hang down D-axis rotor diameter is 10m, a height of 15m.When rotating speed is 70rpm, the negative pressure value that pressure charging system is provided is 64Pa, now air-flow Power Pm=Δ pm/ ρ=123.9kW, power output P=ηt·Pm=49.5kW, while fresh water outputSolar energy composite utilization rate
By theoretical calculation as can be seen that being generated electricity by the joint desalinization solar chimney of wind power boosting system drive Solar energy composite utilization rate has and is substantially improved in system.In order to further prove superiority of the invention, by with Spain Prototype size is modeled, and carries out numerical simulation, the reference of physical simulation process in the insides of ANSYS FLUENT 15《Desalinization is too Positive energy chimney combined generating system thermal performance numerical simulation》(《Thermal power generation》, 1 phase of volume 45, in January, 2016).Simulation knot Fruit shows：The generated energy of wind power boosting joint desalinization solar energy chimney generator of the present invention is than single solar chimney Improve 10kW, at the same can output fresh water 26.4kg/h, solar energy composite utilization rate improves 70%；Than classical joint seawater Desalination solar energy chimney generator generated energy improves 15kW, and solar energy composite utilization rate improves 30%.This and theory are counted Calculation value is sufficiently close to, it was demonstrated that the reliability and superiority of apparatus of the present invention.
The present invention increases chimney internal negative pressure so as to considerably improve the sun by H type vertical-shaft wind supercharging devices The generated energy of energy chimney generation system, while also attaching fresh water output, greatly improves solar energy composite utilization rate.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, on the premise of the technology of the present invention principle is not departed from, some improvement and modification can also be made, these are improved and modification Also should be regarded as protection scope of the present invention.

Claims (3)

1. it is a kind of to combine the device that wind-force boosting type chimney carries out solar power generation and desalinization, it is characterized in that, including seawater Desalting plant, thermal-arrest canopy, chimney, turbine and wind power boosting device；
Thermal-arrest canopy includes thermal-arrest canopy base plate, the thermal-arrest canopy cover plate being covered in above thermal-arrest canopy base plate, thermal-arrest canopy cover plate and thermal-arrest canopy Horn-like diversion cavity is formed between base plate；
The sea water desalinating unit includes the distillation bottom of pond groove positioned at bottom, and distillation bottom of pond groove is set along thermal-arrest canopy base plate annular, The outer rim side for distilling bottom of pond groove is provided with sea intake that the brine outlet positioned at bottom is connected with sea water layer and positioned at upper end Water outlet；Multigroup glass partition support, two adjacent groups glass partition support are radially equally spaced in distillation bottom of pond groove Upper end it is angularly disposed have glass partition, be provided with inwardly in the lower end with glass partition low side junction on each glass partition support The arc fresh water collecting apparatus by means that side top extends, is communicated with both drainage troughs, outermost along bottom between adjacent fresh water collecting apparatus by means The exit connection water outlet of layer drainage trough；
The chimney is vertical hollow cylinder, and the outlet of diversion cavity is connected with the lower port of chimney, and the center connected at both Place sets the turbine；
The wind power boosting device includes the supporting plate being arranged in upper chimney end mouthful cavity, and supporting plate center vertically connects master Axle, the lower end of main shaft is circumferentially provided with ventilating vane, and upper end circumferentially sets H type vertical shaft wind impeller blades, H type vertical shaft winds The lower end of impeller blade is rigidly connected with ventilating vane.
2. a kind of joint wind-force boosting type chimney according to claim 1 carries out the dress of solar power generation and desalinization Put, it is characterized in that, fresh water collecting apparatus by means is a ring-type for quadrant.
3. a kind of joint wind-force boosting type chimney according to claim 1 carries out the dress of solar power generation and desalinization Put, it is characterized in that, distillation bottom of pond groove use absorptivity scope for 0.9 ~ 0.94 the stainless steel plate with selective coating.
CN201611022382.3A 2016-11-17 2016-11-17 Device capable of carrying out solar power generation and seawater desalination with combination of wind power pressurization chimney Pending CN106704106A (en)

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Application publication date: 20170524