CN103359799A - Two-channel chimney device, seawater desalting device and method for forming two airflow channels - Google Patents
Two-channel chimney device, seawater desalting device and method for forming two airflow channels Download PDFInfo
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- CN103359799A CN103359799A CN2012100994272A CN201210099427A CN103359799A CN 103359799 A CN103359799 A CN 103359799A CN 2012100994272 A CN2012100994272 A CN 2012100994272A CN 201210099427 A CN201210099427 A CN 201210099427A CN 103359799 A CN103359799 A CN 103359799A
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- 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
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- 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
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- 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
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- 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
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- 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
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Abstract
The invention relates to a two-channel chimney device, a seawater desalting device and a method for forming two airflow channels. The two-channel chimney device comprises a heating chamber, an ascending air channel communicated with the heating chamber, and a descending air channel, wherein an outlet of the descending channel is communicated with the heating chamber, air flow paths among the descending air channel, the heating chamber and the ascending air channel enable gas, which is expanded under heating, in the heating chamber to enter the ascending air channel by virtue of a chimney effect, and gas is also introduced into the heating chamber through the descending air channel. By virtue of the two-channel device, heat energy generated by desalting seawater can be efficiently reused, and the loss of heat in the heating chamber can be reduced. According to the invention, the defects of seawater desalting by solar energy in the prior art are overcome, the seawater desalting ratio is improved, the energy consumption is reduced, and the construction and maintenance costs are low.
Description
Technical field
The present invention relates to energy utilization and field of sea water desalting technology, specifically, the present invention relates to the method and apparatus that utilizes sun power to desalinize seawater.
Background technology
Tellurian water resources is very abundant, but wherein 97% is the seawater that can't drink and irrigate, is the glacier of the South Pole and the arctic and in remaining 3% major part is arranged, and can't be utilized easily.And earth fossil energy reduces day by day, and the day of distance exhaustion is very few, so utilize fossil energy to come desalination water, cost is too high.Therefore utilizing the natural energy resources such as sun power to come desalination water is the heat subject of nearly ten several years, although new technology constantly release, still most of technology all face all respects such as cost and technology restriction and can't large-scale promotion.Large-scale desalination water equipment generally adopts multi-level flash or reverse osmosis method filtering technique now, and the cost of making desalination water is approximately 4 kilowatt-hour/tons, about 5～6 yuan/tons, or suitable height, especially for agricultural provides water, so high cost is unacceptable.Therefore reducing energy consumption is the subject matter that the present invention will approach.
In addition, also has dew point evaporation seawater (salt water) desalination technology, it is as carrier take air, by with seawater or brackish water to its humidification with dry to make fresh water, and by heat transmission process and the humidification process coupling of will drying, make condensation latent heat be directly delivered to evaporator room, for evaporated salt water provides the latent heat of vaporization, to improve the thermo-efficiency of process.Multistage flash evaporation method and osmosis filtration method are the main method that instantly extensive sea water desaltination is adopted, but the former can produce concentrated seawater and salt crust, increase cost for cleaning, and the cost of latter's equipment is higher.Thereby the multistage flash evaporation method is the boiling point that utilizes low pressure to reduce seawater makes seawater evaporate rapidly in lower temperature, and then condensation obtains the method for fresh water, so be divided into multistagely, namely set different air pressure according to differing temps, thereby realize the purpose that the seawater heat takes full advantage of.
Solar chimney designs in order to utilize sun power to generate electricity at first, yet utilizes solar chimney to generate electricity, and a lot of people's researchs are also arranged.Publication number is that " CN101671056 ", application number are the method that 200910070802.9 Chinese patent application has disclosed a kind of solar chimney desalination water, it utilizes the solar energy collector harvest energy, and inflow solar chimney, then use high-pressure hydraulic pump that water is brought up to the chimney middle part, by spraying plant seawater is sprayed, and allow the heat of gas in the solar chimney and the seawater that will flow into shower nozzle carry out heat exchange, and realize energy recovery, produce simultaneously desalination water.The shortcoming of this method is to design complexity, and laid down cost is higher, and the solar energy utilization ratio is lower, because still there is the part heat to flow in the air.
Summary of the invention
The object of the present invention is to provide a kind of two channels chimney device, it is so that form the Energy Intensity Reduction of air-flow.
Another object of the present invention is to provide a kind of two channels funnel-shaped sea water desalinating plant, its energy consumption that desalinizes seawater is lowered.
Another object of the present invention is to provide a kind of method of utilizing chimneyeffect to form two gas channels, it is so that form the Energy Intensity Reduction of air-flow.
A further object of the present invention is to provide a kind of two channels funnel-shaped method for desalting seawater, itself so that the energy consumption that desalinizes seawater be lowered.
For realizing the two channels chimney device of described purpose, the rising air flue that comprises heating chamber and connection heating chamber, be characterized in, also comprise the decline air flue, the outlet of decline air flue is communicated with heating chamber, gas flow path between decline air flue, heating chamber and the rising air flue makes after when gases are heated, they expand in the heating chamber by means of chimneyeffect, enters the rising air flue, and makes simultaneously the decline air flue introduce gas to heating chamber.
Described two channels chimney device, its further characteristics are, side in decline air flue and the rising air flue in the opposing party's periphery around and arrange, and/or the side in decline air flue and the heating chamber in the opposing party's periphery around and arrange, between decline air flue and the rising air flue, and/or at least part of section can carry out heat exchange between decline air flue and the heating chamber.
Described two channels chimney device, its further characteristics be, described heating chamber is the solar energy heating canopy, and described rising air flue is solar chimney.
Described two channels chimney device, its further characteristics are that the gas velocity maximum position place in the described gas flow path is provided with wind motor.
Described two channels chimney device, its further characteristics be, in the solar energy heating canopy or rising air flue bottom water receptacle is set, the water in the water receptacle stores heat energy by absorbing solar temperature rising.
Described two channels chimney device, its further characteristics are, described rising air flue entrance is at the top of heating chamber, and the outlet of described decline air flue is in the bottom of heating chamber, the gas of expanded by heating is risen naturally at heating chamber, and focus on the ingress of rising air flue.
For the funnel-shaped sea water desalinating plant of the two channels that realizes described purpose, comprise evaporator room, be used for the evaporation seawater; The rising air flue that is communicated with evaporator room; Be characterized in, also comprise the decline air flue that is communicated with evaporator room, the decline air flue, gas flow path between evaporator room and the rising air flue makes after when gases are heated, they expand in the heating chamber by means of chimneyeffect, enter the rising air flue, and make simultaneously the decline air flue introduce gas to evaporator room, side in decline air flue and the rising air flue in the opposing party's periphery around and arrange, and/or the side in decline air flue and the evaporator room in the opposing party's periphery around and arrange, between decline air flue and the rising air flue, and/or down at least part of section between air flue and the evaporator room can be carried out heat exchange, the section of heat exchange is hot switching path; And fresh water collecting device, having collection port, this collection port is positioned at the below of hot switching path.
The funnel-shaped sea water desalinating plant of described two channels, its further characteristics are, described rising air flue entrance is at the top of evaporator room, and the outlet of described decline air flue is in the bottom of evaporator room, the gas of expanded by heating is risen naturally at heating chamber, and focus on the ingress of rising air flue.
The funnel-shaped sea water desalinating plant of described two channels, its further characteristics be, described evaporator room is the solar energy heating canopy, and described rising air flue is solar chimney.
The funnel-shaped sea water desalinating plant of described two channels, its further characteristics are, also comprise the capillary evaporation device and/or the seawater jet apparatus that are arranged in the evaporator room, the capillary evaporation device from sea container adsorbing seawater and spread seawater and the contact area of gas accelerating the evaporation of described seawater, seawater jet apparatus extracting seawater and be sprayed into the water smoke shape to accelerate the evaporation of described seawater from sea container.
For the chimneyeffect that utilizes of realizing described purpose forms the method for two gas channels, utilize principle that hot gas rises that the hot gas in the heating chamber is upwards imported in the atmosphere and form the rising air flue, be characterized in that the gas that the draught head that also causes by means of the discharging of hot gas simultaneously sucks atmosphere downwards is in heating chamber and form the decline air flue.
The described method of utilizing chimneyeffect to form two gas channels, its further characteristics are, with the side in decline air flue and the rising air flue in the opposing party's periphery around setting, and/or the side in decline air flue and the heating chamber in the opposing party's periphery around and arrange, and between decline air flue and rising air flue, and/or carry out heat exchange between decline air flue and the heating chamber between at least part of section.
The described method of utilizing chimneyeffect to form two gas channels, its further characteristics are to utilize the solar energy heating canopy to consist of described heating chamber, and utilize solar chimney to consist of described rising air flue.
Be the funnel-shaped method for desalting seawater of the two channels that realizes described purpose, in evaporator room, evaporate seawater, utilize principle that hot gas rises that the hot gas in the evaporator room is imported in the atmosphere straight up and form the rising air flue, it is characterized in that the gas that the draught head that also causes by means of the discharging of hot gas simultaneously sucks atmosphere straight down is in evaporator room and form the decline air flue; With the side in decline air flue and the rising air flue in the opposing party's periphery around setting, and carrying out heat exchange between at least part of section between decline air flue and the rising air flue, with the fresh water in the hot gas in the condensation rising air flue.
The funnel-shaped method for desalting seawater of described two channels, its further characteristics are to utilize the solar energy heating canopy to consist of described evaporator room, and utilize solar chimney to consist of described rising air flue.
The funnel-shaped method for desalting seawater of described two channels, its further characteristics are, also utilize capillary evaporation device and/or seawater jet apparatus in the evaporator room to accelerate the evaporation of seawater, the capillary evaporation device from sea container adsorbing seawater and spread seawater and the contact area of gas accelerating the evaporation of described seawater, seawater jet apparatus extracting seawater and be sprayed into the water smoke shape to accelerate the evaporation of described seawater from sea container.
In aforesaid invention, after when gases are heated, they expand in heating chamber or the evaporator room, density will reduce, and then upwards entered the rising air flue; And in the decline air flue because gas is to flow into from upper atmosphere, so temperature is lower than the temperature of the gas in the rising air flue, thereby density greater than the density of gas in the rising air flue, thereby form chimneyeffect.High like this air body constantly enters from the top of decline air flue, until enter in heating chamber or the evaporator room, enters the rising air flue after being heated again, and the top exit from the rising air flue flows out again, thus ceaselessly operation.
Aforesaid invention has a lot of advantages, include but not limited to, first, because the gas temperature of earth surface reduces with height, the gas temperature that is to say the high-altitude is lower, and density is larger, so the medial temperature of the gas in the decline air flue is lower than the air themperature in the respective heights external world, therefore descend mean density in the air flue also greater than the outside air mean density of correspondence position, thereby can produce stronger chimneyeffect; The second, the bottom of heating chamber assists in substantially sealing, and compared to the air on earth's surface, the air in high-altitude is cleaner, therefore can keep so whole device more to clean; The 3rd, because be provided with two-way air flue, be two air flues like this, and carry out heat exchange raising aspect between decline air flue and the heating chamber, and then have widely purposes.Especially, when the sending down abnormally ascending road is looped around the periphery of rising air flue and heating chamber instantly, the heat loss through radiation of the high-temperature gas of rising air flue and heating chamber will be lowered by the gas absorption in the air flue, again be brought in the heating chamber, in other words, the decline air flue has played the effect for rising air flue and heating chamber insulation---and be different from the static state insulation of double-layer vacuum, can be referred to as dynamic insulation.Such insulation effect has been arranged, and the utilization ratio of energy will improve greatly.And being compared to vacuum heat-preserving, the structure of this dynamic insulation has advantage with low cost and that can build on a large scale.
The performance that aforementioned invention reduces energy consumption is mainly reflected in: the first, closed or return-flow type design and can not be lost in the atmosphere so that most of heat is stayed in the device; The second, the mobile of water vapour has chimneyeffect to drive, and only needs towering gas passage, so cost is lower; Three, the capillary evaporation device has greatly enlarged evaporation area, improves the water vapour evaporation.So the present invention has improved the speed of solar seawater desalination and the utilization ratio of sun power is to realize flowing of gas by chimneyeffect, thereby realizes the application of the each side such as evaporation of seawater or generating, because only having reduced energy consumption.
Seawater comprises brackish water etc., and other can extract by evaporation the liquid of fresh water.
In addition, the needed energy of the heating chamber of aforementioned invention or evaporator room can be diversified, when using the electric energy equal energy source, and when utilizing the two channels chimney device to carry out sea water desaltination.The first, can save land area, because electric energy equal energy source energy density is high, can in very little scope, realize a large amount of evaporations of seawater, and two-way air flue can extend by heavenwards, so just need not to take a large amount of soils; The second, energy consumption is lower, because gas carries out heat exchange in two air flues, thereby so that most of energy is recycled, and in energy recovery, condensed steam obtains desalination water.So utilize the two-way air flue chimney sea water desalinating plant of electric energy equal energy source, namely the solar energy heating canopy is become the evaporator room that utilizes the electric energy equal energy source, in evaporator room, can utilize capillary evaporation device or water-and mist-spraying device to promote evaporation.
Aforementioned purpose, technical scheme and technique effect describe in detail in connection with drawings and embodiments described later.
Description of drawings
The above and other features of the present invention, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the structural representation of a kind of common solar chimney device in the prior art;
Fig. 2 A is the structural representation of the two channels chimney device of one embodiment of the invention;
Fig. 2 B is the structural representation of the two channels chimney device of another embodiment of the present invention;
Fig. 2 C is the structural representation of the two channels chimney device of another embodiment of the present invention;
Fig. 3 is the structural representation of the funnel-shaped sea water desalinating plant of two channels of one embodiment of the invention;
Fig. 4 is the structural representation of the funnel-shaped sea water desalinating plant of two channels of another embodiment of the present invention.
Embodiment
Aftermentioned embodiment uses an important principle, is exactly chimneyeffect.So-called chimneyeffect refers to that indoor gas along the space that vertical bank is arranged to rising or descending, causes gas to add the phenomenon of strong convection.When modal chimneyeffect is the running of stove, boiler, the hot gas of generation along with chimney to rising, leave at the top of chimney.The air-flow that causes because of loose the overflowing of the hot gas in the chimney is filled up the gas suction of open air, makes the fire of stove more fierce.Thereby strengthen the convection current of gas.So in general, pressure difference is maximum near chimney bottom, and the speed of gas is maximum.Chimney described in the aftermentioned embodiment, the device that can play chimneyeffect that all refers to.So the chimney device of indication comprises solar chimney among the aftermentioned embodiment, and other are the devices that can play chimneyeffect.Aftermentioned embodiment has disclosed a kind of new chimney device in addition, has plurality of advantages compared with traditional chimney, and this will specifically set forth in an embodiment.
Aftermentioned embodiment is the sea water desalinating plant that utilizes chimneyeffect, and the generation of chimneyeffect can utilize sun power as the energy, and that also can utilize other is used as the energy such as electric energy or Steel Plant's waste heat or power station waste gas residual heat etc.And utilize the chimney device of chimneyeffect, playing is gas flow, thereby accelerates the effect of sea water desaltination.So following examples are set forth as the energy with sun power, but sun power can be directly replace with other energy, and principle is basic identical.No matter utilize sun power or utilize other energy, all devices among the aftermentioned embodiment have all taken into full account the recovery of energy in addition, so capacity usage ratio can improve greatly, thereby reduce the cost of desalination water.
Except chimneyeffect, aftermentioned embodiment also utilizes wicking action principle and law of connected vessels etc.Wicking action is fluid surface to be caused the magnetism of solid surface.Kapillary inserts and infiltrates in this liquid capillaceous, and the intraluminal fluid face rises, and is higher than the outer liquid level of pipe, can be referred to as to infiltrate wicking action; Kapillary inserts and does not infiltrate in this liquid capillaceous, and liquid in pipe descends, and is lower than the outer liquid level of pipe, can be called not infiltrate wicking action; Above situation all is the capillarity that wicking action causes, aftermentioned embodiment utilization be the former, i.e. liquid situation that kapillary is infiltrated.And kapillary is made a general reference all and can be played capillary object.By wicking action capillaceous, can water from the water source in certain altitude range to around transmit, thereby increase greatly the contact area of water and gas, thereby the effect of realization rapid evaporation.The capillary evaporation device that aftermentioned embodiment uses need to be that seawater or brackish water are had very strong wicking action, can produce again the material of larger evaporation area, reasonable material comprises glass wire or net, nylon fibre line or net, and other porous materials, have device than strong absorptive such as sponge etc.
Except with the wicking action, can also produce water smoke by water-and mist-spraying device, namely the water atomization spray is swept in the hotter dry gas, with the contact area of expansion seawater and air, and realization improves the effect of velocity of evaporation.This method is close with capillary method effect, can use separately, also can use together.In a word, under the effect of these two kinds of methods, so that in the space that these two kinds of methods are used, water vapour reaches capacity immediately, then obtains desalination water by lowering the temperature for such gas, during in other words according to high temperature and low temperature, the difference of saturated steam density realizes the desalination of seawater.
The invention will be further described below in conjunction with specific embodiments and the drawings; set forth in the following description more details so that fully understand the present invention; but the present invention obviously can implement with multiple this description ground alternate manner that is different from; those skilled in the art can do similar popularization, deduction according to practical situations in the situation of intension of the present invention, therefore should be with content constraints protection scope of the present invention of this specific embodiment.
Aftermentioned embodiment has disclosed several novel chimney devices, and has disclosed the device that utilizes this chimney device to realize solar electrical energy generation or sea water desaltination.The needed energy of sea water desaltination can be sun power, also can be other energy, such as electric energy, wind energy, Geothermal energy or bioenergy etc., and perhaps various energy resources acting in conjunction is to reach optimized effect.And below be among the embodiment, only describe with the energy of sun power as desalination water, thus the title among the embodiment name with solar chimney, solar energy heating canopy etc., but do not represent to use sun power.
Fig. 1 is the structural representation of existing a kind of common solar chimney device.As shown in Figure 1, this solar chimney device 100 mainly comprises solar chimney 103 and solar energy heating canopy 101, wherein solar chimney 103 is designed to have effect of heat insulation, prevent that the gas heat in it is lost in the ambient air, and the height of solar chimney 103 is higher, and then the gas velocity in it is just larger.And solar energy heating canopy 101 is generally transparent configuration, the material of black often is set to improve the specific absorption of sun power under the solar energy heating canopy 101, obviously the area of solar energy heating canopy 101 is larger, the gas temperature that then produces is higher, the air pressure that produces in solar chimney 103 bottoms is also just higher, and air pressure is higher, and the gas velocity in solar chimney 103 is just higher.Regular solar chimney 103 generally only has a rising air flue.To have two air flues at aftermentioned embodiment, i.e. rising air flue, the air flow line in a decline air flue, two air flues is opposite.
Fig. 2 A and Fig. 2 B are respectively the structural representation of the two channels chimney device of one embodiment of the invention.Shown in Fig. 2 A and Fig. 2 B, two channels chimney device 200 comprises solar chimney (for the rising air flue) 203, (for heating chamber) 201 of solar energy heating canopy and intake ducting (for the decline air flue) 204.Solar chimney 203 and intake ducting 204 consist of two-way air flue for regular solar chimney 103 single rising air flues, be characterized in, solar chimney 203 is parallel with intake ducting 204.The enforcement that utilizes chimneyeffect to form the method for two gas channels of the present invention can be understood in conjunction with the embodiment shown in Fig. 2 A, Fig. 2 B.Solar energy heating canopy 201 bottoms keep sealing, after when gases are heated, they expand in the solar energy heating canopy 201, will produce in solar chimney 203 bottoms high pressure, and then enter solar chimney 203 like this.And in intake ducting 204, because the gas in the intake ducting 204 is to flow into from upper atmosphere, so medial temperature is lower than the medial temperature of the gas in the solar chimney 203, thus density greater than the density of gas in the solar chimney 203, thereby form chimneyeffect.High like this air body constantly enters from the top of intake ducting 204, until enter in the solar energy heating canopy 201, enters solar chimney 203 after being heated again, flow out from solar chimney 203 top exits again, thus ceaselessly operation.As for the shape of solar energy heating canopy 201, then according to the difference of landform or application places and different.Be typically take solar chimney 203 bottoms as vertex to the pyramid type of radiation all around.The difference of Fig. 2 A and Fig. 2 B is that chimney 203 is different with the relative position of intake ducting 204, and chimney 203 is arranged in intake ducting 204 in Fig. 2 A, and in Fig. 2 B, intake ducting 204 passes from chimney 203, and its operation logic is all identical, so repeat no more.Make with the higher material of specific heat if thermal-arrest canopy 201 is interior, so at night, the heat of thermal-arrest canopy 201 can discharge, so that whole device 200 will remain in operation for some time, this is an optimization design.
Compared to common solar chimney device 100, two channels chimney device 200 has three advantages, first, the medial temperature of the gas in the intake ducting 204 is lower than the air themperature in the correspondence position external world, because the gas temperature of earth surface reduces with height, 1000 meters of about every risings, temperature reduces by 6.5 degrees centigrade, therefore the mean density in the intake ducting 204 is also greater than the outside air mean density of correspondence position, thereby can produce stronger chimneyeffect with rising air flue 203, second, two channels chimney device 200, bottom (heating chamber) seals, compared to the air on earth's surface, the air in high-altitude is cleaner, therefore can keep so whole device 200 more to clean; The 3rd, because be provided with two-way air flue, provide favourable condition for two air flues carry out heat exchange like this, and carried out heat exchange between decline air flue and the heating chamber, and then had widely purposes.Especially, when sending down abnormally ascending road 204 is looped around the periphery of rising air flue 203 and heating chamber 201 instantly, the heat loss through radiation of the high-temperature gas of rising air flue 203 and heating chamber 201 will be lowered by the gas absorption in the air flue 204, again be brought in the heating chamber 201, in other words, decline air flue 204 has played the effect for rising air flue 203 and heating chamber 201 insulations---and be different from the static state insulation of double-layer vacuum, can be referred to as dynamic insulation.Such insulation effect has been arranged, and the utilization ratio of energy will improve greatly.And being compared to vacuum heat-preserving, the structure of this dynamic insulation has advantage with low cost and that can build on a large scale.
Instantly be arranged on rising air flue 203 peripheries and carry out with it effective heat exchange in sending down abnormally ascending road 204 such as Fig. 2 C, the air flue 204 that descends simultaneously is arranged on the radiant heat of the periphery absorption high-temperature heating chamber 201 of heating chamber, the double air passage chimney device can be used as solar energy heating and attemperator uses, because the heat that flows out from the top exit of rising air flue 203 like this can minimize, and most of heat is recycled to heating chamber 201, because the speed that heat runs off is proportional to the temperature difference of two kinds of materials, and the temperature difference of the gas in the decline air flue and ambient atmosphere is very little, so the heat that runs off is very little, thereby plays insulation effect.In other words, between gas temperature higher heating chamber 201 and rising air flue 203 and ambient atmosphere, the decline air flue 204 of setting becomes a dynamic thermal insulation layer.And conduct is collected the double air passage chimney device of sun power and insulation effect use aspect the generation air-flow, and the speed of air-flow can reduce.
Utilize solar energy collecting and the heat preservation property of two channels chimney device 200, in solar energy heating canopy 201, be provided with water receptacle 205, water receptacle can directly absorb the heat of sun power, also can carry out heat exchange and absorbing heat by the air in heat exchanger and the thermal-arrest canopy.Water in the water receptacle 205 can absorb heat and the storage in the solar energy heating canopy, thereby produce the water of high temperature, these water can directly provide use to people, also can be used as the collector of heat, come the temperature in the balance solar energy heating canopy 201, stable within limits the gas temperature in the solar energy heating canopy 201, avoid because the temperature fluctuation that waits factor to cause round the clock.Also can directly to absorb sun power be water heating in the water receptacle 205 to heat exchanger in addition, and utilize two channels chimney device 200 to be incubated.And water receptacle 205 and heat exchanger all are common equipment, do not do too much description.
And when sending down abnormally ascending road 204 is arranged on the peripheral of rising air flue 203 and heating chamber or only is arranged on the periphery of heating chamber 201 instantly, and not deliberately the heat exchange of raising between them, just absorb their atural beat radiation, the air flue 204 that descends so can absorb the radiant heat from rising air flue 203 and/or heating chamber 201, when the decline air flue 204 of this moment plays the effect of heat recuperation, do not reduce temperature and the speed of rising air flue 203 interior air-flows.In the larger position of air-flow wind motor is set so, produces power or electric power, will improve greatly the utilising efficiency of sun power.This is the improvement to traditional solar chimney power generation system.When heating chamber 201 utilizes sun power as the energy, become the solar energy heating canopy.
For example, the temperature in traditional solar heat-collection canopy 201 is approximately 70 degrees centigrade, and corresponding outside air temperature is made as 30 degrees centigrade, and the temperature difference is about 40 degrees centigrade like this, and loss heat speed is very fast, to such an extent as to the temperature in the solar energy heating canopy is difficult to improve again.And use decline air flue 204 to reclaim after the heats, the gas temperature in the decline air flue 204 in outside air temperature and thermal-arrest canopy between the temperature, about 35～45 degrees centigrade.So, the heat that is lost in the thermal-arrest canopy in the decline air flue 204 is got back to again the thermal-arrest canopy very soon, and the gas in the decline air flue 204 and the temperature difference of ambient atmosphere are about 5～10 degrees centigrade, thermal-radiating speed is very slow, the result is that the temperature in solar energy heating canopy 201 and the rising air flue 203 has improved, and therefore chimneyeffect is strengthened.The setting of decline air flue 204 greatly reduces the loss of heat in the thermal-arrest canopy.Simultaneously, because the total height of solar energy heating canopy can ignore with respect to rising air flue 203, the raising of the air flue 204 interior temperature that therefore descend, the temperature of air flue 204 bottoms that especially descend improves, and is very little on the impact of chimneyeffect intensity.
Especially build as the transparent glass of solar energy heating canopy 201 general employings, its heat-insulating property is relatively poor.And that rising air flue 203 or solar chimney do not need is transparent, can utilize lagging material to make.With so dynamic attemperator, can improve its sun power utilising efficiency, also can enlarge the use range of solar chimney device simultaneously, namely no matter in the torrid zone, temperate zone or frigid zone are also no matter be can use in summer or winter.Because the utilization of solar chimney device is chimney or the inside and outside temperature difference of rising air flue, rather than the absolute temperature in it.The decline air flue is arranged on the peripheral or inner of heating chamber, needs to consider cost.For the solar energy heating canopy, its surface-area is very large, so it is peripheral that decline air flue 204 is arranged on the solar energy heating canopy, be equivalent to use bilayer structure, the decline air flue is the interlayer between the bilayer, and the cost of this part has just doubled like this, and this is the cost that improves the sun power utilising efficiency.
Two channels chimney device 200 has three main application, and first is exactly to drive wind turbine to generate electricity, and its method is in the fastest place of gas flow rates wind turbine generator to be set, and utilizes the air-flow that flows to generate electricity and gets final product.To select preferably in solar chimney 203 bottoms in general.Second is exactly to desalinize seawater, and mainly is to utilize sun power evaporation seawater, then carry out condensation this will be in embodiment as shown in Figure 3 and Figure 4 detailed analysis.The 3rd is exactly to produce hot water, namely as solar water heater.Compare with the traditional vacuum tube solar water heater, two channels chimney device 200 is collected sun power and is made water-heater, and cost is lower and larger.In the two-way air flue, according to the custom thinking, the passage called after chimney at the air-flow place that moves upward or rising air flue, and another one air flue called after intake ducting or decline air flue.Fig. 3 is the structural representation of the funnel-shaped sea water desalinating plant of two channels of one embodiment of the invention.As shown in Figure 3, the two channels chimney device shown in the funnel-shaped sea water desalinating plant 300 corresponding diagram 2A of two channels.The funnel-shaped sea water desalinating plant 300 of two channels comprises: solar energy heating canopy (evaporator room) 301, pond 302 (or pond or container of other guiding or savings seawater), solar chimney (rising air flue) 303 and fresh water collecting device 305.Wherein, solar energy heating canopy 301 comes heating seawater for collecting sun power; Pond 302 is positioned at the below of solar energy heating canopy 301, fills seawater in it and promotes the evaporation of seawater; Solar chimney 303 is positioned at the top of solar energy heating canopy 301 and is attached thereto logically, is provided with the intake ducting (decline passway) 304 with solar chimney 303 parallel longitudinals in it, and the water vapour in the solar energy heating canopy 301 are formed chimneyeffect; Fresh water collecting device 305 is positioned at the bottom of solar chimney 303, is used for water vapor condensation is become fresh water collecting.
In the present embodiment, except solar chimney 303, solar energy heating canopy 301 and intake ducting 304, in solar energy heating canopy 301, be provided with evaporation equipment, strengthen solar energy heating canopy 301 as the volatility of evaporator room, and in order to promote the evaporation of seawater, be provided with pond 302.Be provided with in addition capillary evaporation device 308 and water-and mist-spraying device 309 etc., capillary evaporation device 308 is arranged in pond 302, utilizes wicking action to accelerate the evaporation of seawater; Water-and mist-spraying device 309 is extracting seawater from pond 302, in the bottom of solar chimney 303 seawater is sprayed into the water smoke shape, accelerates the evaporation of seawater; Wherein the two can use simultaneously, also can use separately, can be arranged in the solar energy heating canopy 301, also can be arranged in the solar chimney 303, and particular case is determined according to practical situation or cost.Water-and mist-spraying device 309 comprises shower nozzle, water pipe and water pump etc.Capillary evaporation device 308 and water-and mist-spraying device 309 are to evaporate in order to accelerate, but it is not necessary, but optimization design.Improve the area in solar energy heating canopy 301 interior evaporation waters, also can improve velocity of evaporation.
The funnel-shaped method for desalting seawater of two channels of the present invention can be understood with reference to Fig. 3 or embodiment shown in Figure 4.When seawater is subjected to after thermal evaporation becomes water vapour, the high-temperature gas that contains a large amount of even saturated steam, inevitable along solar chimney 303 risings, therefore for so that water vapor condensation becomes desalination water, need for this reason gas cooling, and the method for cooling is so that the heat-exchange power of the gas of the gas in the solar chimney 303 and intake ducting 304.Therefore as shown in Figure 3, the part section of solar chimney or rising air flue 303 is heat exchange air flue 307, it is one or more elongated pipelines, has a more air outlet 306, fresh water collecting device 305 is positioned at the below of heat exchange air flue 307, and heat exchange air flue 307 is surrounded by intake ducting 304.And heat exchange air flue 307 can be solar chimney 303 part or all, and this will decide as the case may be.Heat exchange air flue 307 can be set to one or several parallel pipeline, and need to use the higher material of thermal conductivity to make, and metallic substance such as copper and aluminium will improve the surface-area of these heat exchange air flues 307 simultaneously.And the method that improves surface-area has, the first, reduce the sectional area of single air flue, and improve the number of heat exchange air flue 307; The second, be provided with the tinsel that is bonded together with it on the surface of heat exchange air flue 307; The 3rd, heat exchange air flue 307 is made crooked shape, with the larger length of realization in limited height, thereby improve surface-area.
In addition, flow-guiding channel 3051 that also is provided with fresh water tank 3052 and fresh water below heat exchange air flue 307 etc. (is collectively referred to as fresh water collecting device 305, effect is the 307 interior condensations of heat exchange air flue and the fresh water that gets importing fresh water tank 3052 and storage), wherein flow-guiding channel 3051 is positioned at the below of heat exchange air flue 307, is used for collecting condensation fresh water; Fresh water tank 3052 is positioned at the outside of solar chimney 303 and is connected with flow-guiding channel 3051, is used for fresh water is stored.And decide with particular case as required the position of fresh water tank 3052.Although solar chimney 303, comprise heat exchange air flue 307, carry out heat exchange with intake ducting 304, but heat is to pass to intake ducting 304 from solar chimney 303, because heat transfer always passes to low temperature from high temperature, along with the gas temperature difference of two air flues of heat exchange is more and more less, the speed of heat transmission also can reduce, therefore the gas medial temperature in the solar chimney 303 is greater than the gas medial temperature in the intake ducting 304, and then the gas density in the solar chimney 303 is less than the gas mean density in the intake ducting 304, so just guaranteed chimneyeffect, thus so that gas flow.And in order to control the size of chimneyeffect, can design as required the efficient of heat exchange, to guarantee the speed maximization of sea water desaltination.
As shown in Figure 3, in solar chimney 303 bottoms, the below of the top of water-and mist-spraying device 309, fresh water collecting device 305 can arrange wind turbine generator 310 and utilize water vapour to generate electricity, do like this, just can allow energy be utilized more fully, and utilize the electric energy produce to provide power for the water pump of water-and mist-spraying device 309.Certainly, be used for generating electricity, it is higher that solar chimney 303 just need to be done, to improve the intensity of chimneyeffect.Sea water desaltination then needs heat exchange air flue 307 and gas in the intake ducting 304 to carry out sufficient heat exchange, and this can reduce chimneyeffect, so the two is contradiction, and the whether more actual needs that utilizes simultaneously and deciding.
The gas inlet of intake ducting 304 (inlet mouth) 3041 is on the top of intake ducting 304, top exit near solar chimney 303, and the pneumatic outlet of intake ducting 304 is to 301 radiation all around of thermal-arrest canopy, and be in the lower place of thermal-arrest canopy 301 inner heights, to guarantee only to enter solar chimney 303 than hot gas in the thermal-arrest canopy 301, namely on vertical and horizontal, all away from the position of solar chimney 303 bottoms.So just can guarantee to flow into gas in the solar energy heating canopy 301 from intake ducting 304, flow through long path and heated fully, and merge after a large amount of water vapour, enter again solar chimney 303.
Fig. 4 is the structural representation of solar chimney formula sea water desalinating plant of the two-way air flue of another embodiment of the present invention.Be that with difference embodiment illustrated in fig. 3 the position of heat exchange air flue 307 and intake ducting 304 has been exchanged in the solar chimney 303.Be solar chimney 303 outside, and intake ducting 304 passes solar chimney 303, heat exchange air flue 307 surrounds intake ductings 304, its principle of work is with embodiment illustrated in fig. 3 identical.In the embodiment shown in fig. 4, intake ducting 304 is many elongated pipelines preferably, and perhaps the inlet mouth of intake ducting 304 is preferably a plurality of, is distributed in the periphery of the air outlet of solar chimney 303.The solar chimney 200 of the two-way air flue that the embodiment corresponding diagram 2B of Fig. 4 discloses.Based on the analysis of Fig. 3 and Fig. 4 embodiment as can be known, solar energy heating canopy 301 is also used as evaporator room except the effect of collecting sun power.In addition among the embodiment shown in Figure 3, when using water-and mist-spraying device 309 in solar chimney 303 bottoms when, solar chimney 303 also plays the effect of evaporator room.So the zone at evaporation equipment place is evaporator room.
The embodiment of Fig. 3 and Fig. 4 carries out sea water desaltination with sun power as the energy, but utilize sun power, the soil that space required is larger, because total energy and the proportional example of area of the sun power that utilizes, therefore when using the electric energy equal energy source, and when utilizing the two channels chimney device to carry out sea water desaltination.The first, can save land area, because electric energy equal energy source energy density is high, can in very little scope, realize a large amount of evaporations of seawater, and two-way air flue can extend by heavenwards, so just need not to take a large amount of soils; The second, energy consumption is lower, because gas carries out heat exchange in two air flues, thereby so that most of energy is recycled, and in energy recovery, condensed steam obtains desalination water.So utilize the two-way air flue chimney sea water desalinating plant of electric energy equal energy source, namely the solar energy heating canopy is become the evaporator room that utilizes the electric energy equal energy source, in evaporator room, can utilize capillary evaporation device or water-and mist-spraying device to promote evaporation.Flow when only utilizing chimneyeffect to produce, so that when water vapor condensation, the boiling point that the interior gas temperature of evaporator room should be lower than seawater is advisable, boiling point is generally about 100 degrees centigrade, because when exceeding boiling point, the evaporator room internal gas pressure may approach or greater than external atmosphere pressure, although can utilize chimneyeffect so, but water vapour just rises in chimney, and the gas in the intake ducting can stop to flow, in addition have part water vapour in intake ducting to flowing.For fear of the appearance of this situation, so the gas temperature in the evaporator room should be lower than the seawater boiling point.If but extraction fan is set in intake ducting, extraneous gas is sent in the evaporator room, then can so that the gas temperature in the evaporator room greater than the seawater boiling point.
More than among all embodiment, although device can utilize sun power, do not get rid of that to use other energy be that the evaporation of seawater in the solar energy heating canopy improves heat, the while also can allow sun power and other energy jointly use, with the speed of raising desalination water.And improve sea water desaltination speed with other energy, can interior seawater or the gas of direct heating solar energy heating canopy.Since whole process heat can be repeatedly utilization, even therefore use other energy, what energy consumption also can be very is low.It is evident that solar chimney is relative with the position of condensation channel, can replace, that is to say solar chimney in both sides or on every side, and condensation channel can be realized above-mentioned functions equally in the centre.
More than use among the embodiment that solar chimney comprises the dead front type solar chimney, the height of solar chimney is set as the case may be, and it highly will be decided according to the maximization of desalination water speed.So the height of solar chimney is just relevant with the factors such as quantity of the sectional area of the heating surface area of solar energy heating canopy, solar chimney, local solar ray energy metric density and solar chimney.Need to prove, more than all utilize the device of solar chimney, the quantity of its solar chimney and corresponding adverse current air flue is all more than or equal to 1.But when generating electricity with solar chimney generation wind-force, the height of solar chimney is just very crucial, because the size of wind speed depends primarily on the temperature of air and the height of solar chimney.The other solar energy heating canopy described in the above embodiment, its shape all are to utilize the shape of concentrating to the solar chimney bottom than hot gas, and such as taper or arc, and so that the contact part of solar energy heating canopy and solar chimney is vertex.
Above sea water desalinating plant, the source of its energy also can derive from other energy such as electric energy etc. except the sun, also can be that various energy resources is used jointly.Especially this type of small-sized desalination water device can utilize sun power and electric energy energy mix to accelerate velocity of evaporation, to improve the speed of desalination water.The capillary evaporation device of using among above all embodiment in addition produces a large amount of xln because distill for a long time and adheres on it, can clean by regular replacing and solve, and also can collect the solid crystal body and do industrial raw material.The method of cleaning is very simple, directly utilizes large marine seawater to clean and gets final product, and this is a considerable advantage of capillary evaporation.
The solar energy sea water desalination apparatus of previous embodiment has fully solved the shortcoming of present solar seawater desalination.The first, the design of closed or return-flow type and can not be lost in the atmosphere so that most of heat is stayed in the device; The second, the flow pattern of water vapour is driven by chimneyeffect, so construction and maintenance cost are lower, and does not consume traditional energy; Three, the capillary evaporation device has greatly enlarged evaporation area, can reduce the air pressure in the device simultaneously, improves the water vapour evaporation.Therefore the present invention has improved the speed of solar seawater desalination and the utilization ratio of sun power.
Although the present invention with preferred embodiment openly as above, it is not to limit the present invention, and any those skilled in the art can make possible change and modification without departing from the spirit and scope of the present invention.Therefore, every content that does not break away from technical solution of the present invention, all falls within the protection domain that claim of the present invention defines any modification, equivalent variations and modification that above embodiment does according to technical spirit of the present invention.
Claims (13)
1. two channels chimney device, the rising air flue that comprises heating chamber and connection heating chamber, it is characterized in that, also comprise the decline air flue, the outlet of decline air flue is communicated with heating chamber, gas flow path between decline air flue, heating chamber and the rising air flue makes after when gases are heated, they expand in the heating chamber by means of chimneyeffect, enters the rising air flue, and makes simultaneously the decline air flue introduce gas to heating chamber.
2. two channels chimney device as claimed in claim 1, it is characterized in that, side in decline air flue and the rising air flue in the opposing party's periphery around and arrange, and/or the side in decline air flue and the heating chamber in the opposing party's periphery around and arrange, between decline air flue and the rising air flue, and/or at least part of section can carry out heat exchange between decline air flue and the heating chamber.
3. two channels chimney device as claimed in claim 1 is characterized in that, described heating chamber is the solar energy heating canopy, and described rising air flue is solar chimney.
4. two channels chimney device as claimed in claim 1 is characterized in that, the gas velocity maximum position place in the described gas flow path is provided with wind motor.
5. two channels chimney device as claimed in claim 3 is characterized in that, water receptacle is set in the solar energy heating canopy or bottom the rising air flue, and the water in the water receptacle stores heat energy by absorbing solar temperature rising.
6. two channels chimney device as claimed in claim 1, it is characterized in that described rising air flue entrance is at the top of heating chamber, the outlet of described decline air flue is in the bottom of heating chamber, the gas of expanded by heating is risen naturally at heating chamber, and focus on the ingress of rising air flue.
7. the funnel-shaped sea water desalinating plant of two channels comprises
Evaporator room is used for the evaporation seawater;
The rising air flue that is communicated with evaporator room;
It is characterized in that, also comprise
The decline air flue that is communicated with evaporator room, the decline air flue, gas flow path between evaporator room and the rising air flue makes after when gases are heated, they expand in the heating chamber by means of chimneyeffect, enter the rising air flue, and make simultaneously the decline air flue introduce gas to evaporator room, side in decline air flue and the rising air flue in the opposing party's periphery around and arrange, and/or the side in decline air flue and the evaporator room in the opposing party's periphery around and arrange, between decline air flue and the rising air flue, and/or down at least part of section between air flue and the evaporator room can be carried out heat exchange, the section of heat exchange is hot switching path; And
Fresh water collecting device has collection port, and this collection port is positioned at the below of hot switching path.
8. the funnel-shaped sea water desalinating plant of two channels as claimed in claim 7, it is characterized in that described rising air flue entrance is at the top of evaporator room, the outlet of described decline air flue is in the bottom of evaporator room, the gas of expanded by heating is risen naturally at heating chamber, and focus on the ingress of rising air flue.
9. such as claim 7 or the funnel-shaped sea water desalinating plant of 8 described two channels, it is characterized in that described evaporator room is the solar energy heating canopy, described rising air flue is solar chimney.
10. the funnel-shaped sea water desalinating plant of two channels as claimed in claim 7, it is characterized in that, also comprise the capillary evaporation device and/or the seawater jet apparatus that are arranged in the evaporator room, the capillary evaporation device from sea container adsorbing seawater and spread seawater and the contact area of gas accelerating the evaporation of described seawater, seawater jet apparatus extracting seawater and be sprayed into the water smoke shape to accelerate the evaporation of described seawater from sea container.
11. method of utilizing chimneyeffect to form two gas channels, utilize principle that hot gas rises that the hot gas in the heating chamber is upwards imported in the atmosphere and form the rising air flue, it is characterized in that the gas that the draught head that also causes by means of the discharging of hot gas simultaneously sucks atmosphere downwards is in heating chamber and form the decline air flue.
12. the method for utilizing chimneyeffect to form two gas channels as claimed in claim 11, it is characterized in that, with the side in decline air flue and the rising air flue in the opposing party's periphery around setting, and/or the side in decline air flue and the heating chamber in the opposing party's periphery around and arrange, and between decline air flue and rising air flue, and/or carry out heat exchange between decline air flue and the heating chamber between at least part of section.
13. the method for utilizing chimneyeffect to form two gas channels as claimed in claim 11 is characterized in that, utilizes the solar energy heating canopy to consist of described heating chamber, and utilizes solar chimney to consist of described rising air flue.
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| CN104402078A (en) * | 2014-12-05 | 2015-03-11 | 河海大学常州校区 | Double chimney tracking solar energy sea water desaltation system and desaltation method thereof |
| CN104896769A (en) * | 2015-06-10 | 2015-09-09 | 河海大学常州校区 | Tower type solar chimney salt, water and electricity cogeneration system and operation method thereof |
| CN104944488A (en) * | 2015-06-10 | 2015-09-30 | 河海大学常州校区 | Salt-water-electricity cogeneration system of sun-tracking solar chimney and operation method of salt-water-electricity cogeneration system |
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| CN109611296A (en) * | 2018-12-29 | 2019-04-12 | 武汉理工大学 | A kind of system that can be carried out power generation using solar energy and underground heat and produce water |
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| CN104402078A (en) * | 2014-12-05 | 2015-03-11 | 河海大学常州校区 | Double chimney tracking solar energy sea water desaltation system and desaltation method thereof |
| CN104402078B (en) * | 2014-12-05 | 2016-06-08 | 河海大学常州校区 | A kind of two chimney type motion tracking solar seawater desalination system and desalination method thereof |
| CN104896769A (en) * | 2015-06-10 | 2015-09-09 | 河海大学常州校区 | Tower type solar chimney salt, water and electricity cogeneration system and operation method thereof |
| CN104944488A (en) * | 2015-06-10 | 2015-09-30 | 河海大学常州校区 | Salt-water-electricity cogeneration system of sun-tracking solar chimney and operation method of salt-water-electricity cogeneration system |
| CN104896769B (en) * | 2015-06-10 | 2017-08-15 | 河海大学常州校区 | A kind of tower type solar chimney salt, water, cogeneration system and its operation method |
| CN106512114A (en) * | 2016-08-23 | 2017-03-22 | 广州市亿福迪医疗科技有限公司 | Constant-temperature constant-pressure adjustable cupping cup |
| CN109611296A (en) * | 2018-12-29 | 2019-04-12 | 武汉理工大学 | A kind of system that can be carried out power generation using solar energy and underground heat and produce water |
| CN112978830A (en) * | 2021-04-15 | 2021-06-18 | 中国科学院电工研究所 | Double-passive solar water treatment system |
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