CN101226001B - Solar water heating system and intelligent control method thereof - Google Patents
Solar water heating system and intelligent control method thereof Download PDFInfo
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- CN101226001B CN101226001B CN2008100102033A CN200810010203A CN101226001B CN 101226001 B CN101226001 B CN 101226001B CN 2008100102033 A CN2008100102033 A CN 2008100102033A CN 200810010203 A CN200810010203 A CN 200810010203A CN 101226001 B CN101226001 B CN 101226001B
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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
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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
- Y02E10/50—Photovoltaic [PV] energy
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention provides a solar hot water system and the intelligent control method, which is characterized in that a temperature probe is provided respectively with the solar collector and the water tank, while signal lines of the temperature probe, a water pump and a sunshade cover motor are all connected to the corresponding interfaces on the computer controller. Firstly set the date and time parameters and the cover level for the heat-collecting tube needed to be shaded; then set the maximum as well as the minimum water temperatures for the water tank and numerical value of temperature difference between the solar collector and the water tank; and at last operate the computer controller according to the above setting to realize automation control. The solar hot water system and the intelligent control method has the advantage that commands can be inputted according to time categories to realize timing control for the sunshade cover. The sunshade device can be regulated automatically according to heat utilization to change the hot side in working by proportions, which utilizes solar energy with optimization. The solar hot water system can provide an excellent protection for the solar collector from damages such as hail and pollutions like dust and accumulated snow, and is provided with the function of rubbing surface of the heat-collecting tube. The solar hot water system ischaracterized with electricity saving and convenient operation.
Description
Technical field
The invention belongs to a kind of solar energy and utilize facility, particularly a kind of solar water heating system intelligence control method.
Background technology
The vacuum heat-collecting tubular type solar thermal collector that generally uses can be aging under the situation that sky shines now, reduces service life or collecting efficiency; Heating also can cause water tank and some other components aging excessively, and increases the formation of incrustation scale; When the water tank water temperature reaches the temperature upper limit of setting in addition, water tank or release steam discharge, so perhaps emit the hot water water purification that reinjects---excessively thermal-arrest can cause the waste of water resource; And emitting the hot water cold water that reinjects also needs water pump to consume electric power.At above problem, someone develops " solar water heater of band temperature regulating device " (patent No. CN03273925.7), in water storage tank, be provided with temperature controller, temperature controller is connected with a controller, be provided with a solar protection devices on solar thermal collector top, be provided with the motor that is in transmission connection with solar protection devices, motor also links to each other with controller.Adopt the solar water appliance of this structure that temperature controlling function is arranged, and can better protective effect be arranged, increase the service life solar thermal collector.
At present, when solar water heating system is installed, excessively be heated in summer, all will limit the erection space of solar thermal collector with the intensity of sunshine in summer in order to prevent hot-water heating system.But, usually be that solar energy is at most again that the hot water demand is minimum the time summer, if with the summer is the basis of calculation, the hot water demand in three seasons of winter in spring and autumn certainly will can not be satisfied, (solar energy can only provide hot water below 50% to solar energy heating system, provides hot water below 75% to solar water heater so annual solar heating ability is very limited.So it is auxiliary to need electrical heating to wait.)
Obviously said solar-energy water heater can not address these problems, the solar protection devices design can not be regulated automatically according to the needs of heat utilization and (only be out that one closes this two kinds of duties, and can not change the collector area of participation work pro rata), do not reach and optimize the purpose of utilizing solar energy; And folding sky shade continually, also can expend electric power, run counter to the original intention of utilizing energy-saving solar.
Summary of the invention
The purpose of this invention is to provide a kind of solar water heating system intelligence control method, can realize sky shade being carried out timing controlled by the defeated people's instruction of time classification.Solar protection devices can be regulated automatically according to the needs of heat utilization, can change the collector area of the work of participating in pro rata, optimizes and utilizes solar energy; The fine protection solar thermal collector of energy is without prejudice and pollutes simultaneously, guarantees the heat absorption efficiency on solar thermal collector surface.Save electric energy, handiness.
Solar water heating system intelligence control method provided by the invention, comprise solar thermal collector, Motorized blind cover, water tank, water pump, solar thermal collector and water tank are provided with temperature-sensing probe respectively, the holding wire of temperature-sensing probe, water pump and sky shade motor all is connected on the corresponding control interface of computer controller, it is characterized in that:
When A, initial normal condition, the sky shade motor does not start, not sunshade of sky shade;
B, the date and time parameter is set;
C, the thermal-collecting tube that needs are hidden hide the gear setting;
D, then sets the highest water temperature T 2max of water tank and minimum water temperature T 2min; Temperature T 1 in the setting solar thermal collector and the temperature difference numerical value Y between the water tank water temperature T 2; Set " water tank water temperature ideal value " T2i;
Affirmation also is provided with parameter more than the storage;
E, manipulation computer controller carry out automation control according to above setting:
At first, judge whether that according to the built-in time system of computer needs start sunshade function: when date and time all meets setup parameter, electric motor starting, sky shade hides the thermal-collecting tube of set position quantity;
Then, identification and analysis temperature data: when the difference DELTA T of temperature T in T2＜T2min and the solar thermal collector 1 and water tank water temperature T 2＜Y, electric motor starting removes sky shade; When the difference DELTA T of the temperature T in T2 〉=T2max and the solar thermal collector 1 and water tank water temperature T 2 〉=Y, electric motor starting hides whole heat collectors:
Subsequently; After water tank temperature reaches water tank ideal temperature T2i, automatically restore to the quantitative sunshade state of setting according to the date and time parameter again.
Segmentation, long-term formula of date when segmentation, week when above-mentioned date and time is the date.
The present invention compares with prior art has following advantage:
1, can realize sky shade being carried out timing controlled by the defeated people's instruction of time classification.Solar protection devices can be regulated automatically according to the needs of heat utilization, can change the collector area of the work of participating in pro rata, optimizes and utilizes solar energy; 2, sky shade can not be subjected to infringement and pollutions such as dust, accumulated snow such as hail by fine protection solar thermal collector, and sky shade also has the function on wiping thermal-collecting tube surface.The heat absorption efficiency on the fine assurance solar thermal collector of energy surface.3, save electric energy, handiness.
Description of drawings
Fig. 1 is the horizontal covering formula sky shade schematic diagram on the solar thermal collector.
Fig. 2 is sky shade is provided with the wiping paste layer towards a side of solar thermal collector a schematic diagram.
Fig. 3 is the each several part connection diagram of solar water heating system.
The specific embodiment
Solar water heating system embodiment provided by the invention: see Fig. 1-3, solar thermal collector 7 adopts the glass vacuum tube type heat collector that generally uses now, the assembling solar protection devices adopts prior art (number of patent application: 03273925.7) on solar thermal collector 7, just the sky shade with its vertical covering formula changes horizontal covering formula sky shade into, promptly, drive roll 4 is installed on left side or right side at support, at two pulleys 8 of the upper and lower installation of opposite side, be sleeved on sky shade 3 connection transmission ropes 5 on the drive roll 4, transmission rope 5 is walked around pulley 8 and is connected drive rolls 4.Drive roll 4 motor 1 that is in transmission connection.
The power of motor 1 can adopt 2 two kinds of conventional power supply and solar storage batteries, realizes the double dynamical mode of operation of conventional power supply and solar storage battery.Photovoltaic solar assembly (solar panel) can be installed on the outer surface of solar protection devices.(as a outdoor roller blind that French Wei Lukesi VELUX group releases on market, built-in solar cell, the roller shutter embedded with solar battery relies on the fritter photovoltaic module charging that is embedded on the roller shutter outer cover fully, can realize continuous No. 100 switches.)
Carry out photoelectricity by the photovoltaic solar assembly and transform, the power storage of generation in the middle of solar storage battery.When electric weight is sufficient, power to consumers such as sky shade motor 1, water pump and solar energy controllers by solar storage battery;
Sky shade 3 is that lighttight flexible fabric is made, and is provided for the wiping paste layer 9 on wiping thermal-collecting tube surface towards a side of solar thermal collector, and wiping paste layer 9 is for having elasticity, the bubble end that can not damage glass, sponge class material.Wiping paste layer 9 can regularly take off clean or change new.Wiping paste layer 9 is provided with 1-3 exterior cross-section and is shaped as the wiping rib 10 that the arc line type lines are formed the V font, and wiping rib 10 constitutes the canine tooth state of interaction with the vacuum glass tube-surface that is arranged in parallel.The arc line type lines can reduce the frictional resistance with thermal-collecting tube, guarantee when sky shade 3 advances or retreats not injury set heat pipe, can also wipe the side of thermal-collecting tube.Solar protection devices of the present invention can adopt multiple version of the prior art, but will change horizontal covering formula into.The superiority of covering formula sky shade is: the thermal-collecting tube on the solar thermal collector all is that parallel longitudinal is arranged, and every thermal-collecting tube all is independently, and one has broken and also do not influence the work of other thermal-collecting tube.So from left to right or from right to left hide, can cover in whole thermal-collecting tube from top to bottom, not only reduced participation collector power (because having reduced the quantity that participates in the thermal-collecting tube of work), can not wear out because of illumination yet.
See Fig. 3, temperature-sensing probe S1, S2 are set respectively in solar thermal collector and the water tank, the holding wire of temperature-sensing probe S1, S2, water pump and sky shade motor all is connected on the corresponding control interface of solar energy computer controller.
Solar energy computer controller adopts existing product (as the product of Jiangsu sun rain company).
In addition, the development angle of successively decreasing from technology innovation and production cost, single-chip microcomputer in the solar energy computer controller need be reserved USB or other I/0 interfaces, connects the internet, and the user can be in case of emergency by digital terminal equipment networking straighforward operations such as Ji Suanji PDA or mobile phones; Perhaps entrust professional institution (such as the solar water heater after-sale service department) according to the weather condition Remote, hide heat collector such as remote control when attacked by hail or strong wind.Can also be connected solar energy computer controller with meteorological testers such as " automatic weather stations ", can obtain the folding that data such as wind and rain and solar radiation are controlled sky shade automatically by automatic weather station; Can also when raining heavily, open puggaree automatically, so that by rain-out cleaning puggaree surface.
The intelligence control method of solar water heating system is as follows:
When A, initial normal condition, the sky shade motor does not start, not sunshade of sky shade;
B, manipulation solar energy computer controller are set time parameter:
At first be that date and time is selected and setting, be divided into " the segmentation during date ", " segmentation during week ", " long-term formula of date ":
" the segmentation during date ", promptly in the middle of 1 year, control instruction from certain date to certain date (for example the specialty salesperson can according to regional climate characteristic help the user set the acquiescence duty-every year in such a month, and on such a day to which date, what cover in prop up thermal-collecting tubes); Can be on the same day commencement date and deadline, is used for only realizing on the same day function of setting.
" segmentation during week "; promptly in 7 days from the Monday to the Sunday, (for example, the user just comes to villa rustica each weekend the control instruction of some day or a few days; only need noon on noon Friday to Sunday and remove sky shade during this period of time, the same sunshade of other times is with the protection solar thermal collector).
" long-term formula of date ", the i.e. control instruction of set time in the middle of every day (for example, somewhere dust storm at night is big, may damage thermal-collecting tube, starts sky shade automatically in time in night every day to early morning and all hides solar thermal collector so set).
Next is to set at the start-stop hour: assigning to xx point xx minute from xx point xx needs sunshade during this period of time.
If commencement date and deadline and start-stop hour are identical, then do not start any function.
" emergency switch option ", i.e. fully sunshade or pack up the switch option of sky shade fully (for example when suffering that suddenly hail attacks, the user can start the complete sunshade of sky shade immediately immediately; And in needs dismounting sky shade, the user can pack up sky shade immediately fully)." switch fully " instruction of being sent by " emergency switch option " has first priority: in case of emergency promptly, when the user all hides heat collector by this instruction, above-describedly be in disarmed state, till this instruction is removed according to the automatically actuated mechanism of Temperature numerical.)
C, the thermal-collecting tube that needs are hidden hide the gear setting; The thermal-collecting tube quantity that set to need hides (as, can block the unit as one by per 5 thermal-collecting tubes, then the solar thermal collector of one 20 arm can be divided into 4 unit, stepper motor can 4 gears of relative set);
D, then sets the highest water temperature T 2max of water tank and minimum water temperature T 2min; Set temperature T 1 and the temperature difference numerical value Δ T=T1-T2=Y between the water tank water temperature T 2 (user can select numerical value Y between 5-20 degree centigrade) in the solar thermal collector; Can set " water tank water temperature ideal value " T2i (user can select numerical value between 40-80 degree centigrade) in addition; Affirmation also is provided with parameter more than the storage.
E, manipulation computer controller carry out automation control according to above setting:
At first, judge whether that according to the built-in time system of computer needs start sunshade function: when period and hour all meet setup parameter, electric motor starting, the thermal-collecting tube of sky shade covering set position quantity; Like this, by " period and hour " input instruction, sky shade is carried out timing, quantitatively control.
Then, identification and analysis temperature data: when T2＜T2min and difference DELTA T＜Y, electric motor starting removes sky shade; When T2 〉=T2max and difference DELTA T 〉=Y, electric motor starting hides whole heat collectors.
Subsequently, under the effect of sky shade (standard-sized sheet or complete shut-down), when water tank temperature T2 gos up or returns when dropping to the ideal temperature T2i of setting, sky shade returns to the quantitative covering thermal-collecting tube state of setting according to time parameter.
By the fully automatic operation of solar energy computer controller control solar water heating system, hardware support kit equipment such as parameter control circulating pump, magnetic valve and auxiliary electrical heating that can be default according to time and temperature etc.
Function of use one: the user can set that (the water tank maximum temperature value is big more by the computer controller to the water tank maximum temperature, the heat of storage is many more, but the water tank water temperature is too high not only dangerous but also scale easily, can allow the user freely select this water tank maximum temperature value between the 60-90 degree); When the water tank water temperature reaches the maximum temperature of setting, if the temperature in temperature one heat collector in the cause computer controller comparison solar thermal collector exceeds certain setting value (such as the temperature difference more than 10 degrees centigrade) than water tank water temperature again, the supply that extraneous solar energy so just is described has obviously exceeded demand, and at this time the computer controller starts sky shade automatically and comes sunshade; If the temperature in the heat collector close with the water tank water temperature (such as the temperature difference in 10 degrees centigrade) even lower, then the solar energy in the explanation external world is not many especially, (distance of water tank and solar thermal collector is far away more to consider thermal loss in the heat transfer process again, the heat-insulating property of water pipe is low more, thermal loss is big more), just the overheated problem of water tank can not occur, also just there is no need to start the sunshade function of sky shade.
Same reason, the user can set the minimum (such as 40 degrees centigrade) of a water tank water temperature by the computer controller, dropped to when the water tank water temperature below the minimum temperature of this setting, if this moment, the computer controller will compare temperature in temperature-heat collector in the solar thermal collector less than certain setting value (such as 60 degrees centigrade), the supply that extraneous solar energy then is described is not enough really, should remove sky shade automatically, to enlarge collector power.
Solar energy is supplied with in lasting superfluous season and is controlled a part of area (perhaps a part of thermal-collecting tube) of sky shade covering heat collector in the time period of prediction automatically, thereby reduces collector area pari passu.The thermal-arrest ability of solar thermal collector all is directly proportional with the quantity of its collector area or thermal-collecting tube.The heat collector that can predict certain collector area (the perhaps thermal-collecting tube of some) according to the data at annual sunshine of zones of different can excessively be heated in which period date in summer.So, can send the motor that corresponding instruction is given sky shade by the computer controller on the date of setting according to these ready-made data setting programs, realize pro rata, in a planned way changing the effect of collector power.
For example, suppose that one 3 mouthfuls family needs the 200L life to use hot water every day, the solar thermal collector with 20 hot pipe type vacuum heat collection pipes can only heat the hot water less than 50% in spring, autumn, three seasons of winter, but can be near 100% in summer.If satisfy the solar-heating amount in spring, autumn, three seasons of winter, just need be increased to 40 vacuum heat collection pipes, and this can cause the problem of excessive thermal-arrest in summer.So need in period date in summer, shelter from 20 vacuum heat collection pipes more than needed according to the data prediction at sunshine with sky shade, that is to say at default value of design in the computerized control system: in this section (the solar energy excess supply) date in prediction, the default conditions of sky shade are " giving some vacuum heat collection pipe sunshades ", only stay other vacuum heat collection pipe operate as normal; In case run into continuous dark clouds weather, solar-heating deficiency, water tank water temperature have dropped to the minimum temperature of setting following (such as below 45 degrees centigrade), and this moment, the computer controller can remove sky shade automatically, so that increase collector power; The user also can manual operation remove sky shade on the computer controller.The water tank temperature (such as 75 degrees centigrade) that goes back up to setting at water tank temperature recovers the acquiescence sunshade function of sky shade afterwards more automatically.
Function of use two: the computer controller is surveyed water tank and solar thermal collector temperature inside by temperature-sensing probe, and start some function according to temperature value, such as when being higher than 10 degrees centigrade of water tank water temperatures at the solar energy heating actuator temperature, automatically start water pump and realize heat exchange, with the water in the heating water tank; After the water tank water temperature reaches the maximum temperature of setting, stop pump working, (these functions are basic functions that the split pressure-bearing type solar heat water system on the market all has to stop solar thermal collector and water tank to carry out heat exchange.The developer of solar energy computer controller can increase expanding function according to client's needs).
Single-chip microcomputer in the solar energy computer controller is reserved USB or other I/O interfaces, connects the internet, and the user can be in case of emergency by digital terminal equipment networking straighforward operations such as Ji Suanji PDA or mobile phones.
Single-chip microcomputer in the solar energy computer controller is reserved USB or other I/O interfaces, can be connected with " automatic weather station ", can obtain meteorological data in real time such as wind and rain and solar radiation by automatic meteorological sensing instrument, again by control the folding of sky shade automatically according to the set good parameter of human-computer dialogue.
Claims (4)
1. the intelligence control method of a solar water heating system, comprise solar thermal collector, Motorized blind cover, water tank, water pump, solar thermal collector and water tank are provided with temperature-sensing probe respectively, the holding wire of temperature-sensing probe, water pump and sky shade motor all is connected on the corresponding control interface of computer controller, it is characterized in that:
When A, initial normal condition, the sky shade motor does not start, not sunshade of sky shade;
B, the date and time parameter is set;
C, the thermal-collecting tube that needs are hidden hide the gear setting;
D, then sets the highest water temperature T 2max of water tank and minimum water temperature T 2min; Temperature T 1 in the setting solar thermal collector and the temperature difference numerical value Y between the water tank water temperature T 2; Set " water tank water temperature ideal value " T2i;
Affirmation also is provided with parameter more than the storage;
E, manipulation computer controller carry out automation control according to above setting:
At first, judge whether that according to the built-in time system of computer needs start sunshade function: when date and time all meets setup parameter, electric motor starting, sky shade hides the thermal-collecting tube of set position quantity;
Then, identification and analysis temperature data: when the difference DELTA T of temperature T in T2＜T2min and the solar thermal collector 1 and water tank water temperature T 2＜Y, electric motor starting removes sky shade; When the difference DELTA T of the temperature T in T2 〉=T2max and the solar thermal collector 1 and water tank water temperature T 2 〉=Y, electric motor starting hides whole heat collectors:
Subsequently, after water tank temperature reaches water tank ideal temperature T2i, automatically restore to the quantitative sunshade state of setting according to the date and time parameter again.
2. the intelligence control method of solar water heating system according to claim 1 is characterized in that: the parameter of date and time is set, segmentation, long-term formula of date when segmentation, week when being divided into the date.
3. the intelligence control method of solar water heating system according to claim 1, it is characterized in that: design has " emergency switch option ", the user has first priority by " switch fully " instruction that this option sends: in case of emergency promptly, when the user implements all to hide heat collector by this instruction, above-describedly be in disarmed state, till this instruction is removed according to the automatically actuated mechanism of Temperature numerical.
4. the intelligence control method of solar water heating system according to claim 1, it is characterized in that: reserve USB or other I/O interfaces by the single-chip microcomputer in the computer controller, connect the internet, the user can be in case of emergency by computer or the operation of mobile phone networked remote control;
Perhaps be connected, obtain wind and rain and the real-time meteorological data of solar radiation by automatic meteorological sensing instrument, again by control the folding of sky shade automatically according to the set good parameter of human-computer dialogue with " automatic weather station ".
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100102033A CN101226001B (en) | 2008-01-24 | 2008-01-24 | Solar water heating system and intelligent control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100102033A CN101226001B (en) | 2008-01-24 | 2008-01-24 | Solar water heating system and intelligent control method thereof |
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| CN101226001A CN101226001A (en) | 2008-07-23 |
| CN101226001B true CN101226001B (en) | 2010-11-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236351A (en) * | 2010-04-23 | 2011-11-09 | 潘戈 | Mobile-technology-based building renewable energy heating system remote monitoring system and method |
| CN104534700A (en) * | 2014-12-19 | 2015-04-22 | 上海电机学院 | System and method for prolonging service life of solar water heater vacuum tube based on smart phone |
| CN104597914A (en) * | 2015-01-28 | 2015-05-06 | 周正英 | Solar tracking system |
| TWI622266B (en) * | 2016-12-01 | 2018-04-21 | Dust detection system and method applied to solar panel |
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| CN101226001A (en) | 2008-07-23 |
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