CN106988491A - Collect rainfall pattern CPC condensation photovoltaics and save flat roof - Google Patents
Collect rainfall pattern CPC condensation photovoltaics and save flat roof Download PDFInfo
- Publication number
- CN106988491A CN106988491A CN201710176044.3A CN201710176044A CN106988491A CN 106988491 A CN106988491 A CN 106988491A CN 201710176044 A CN201710176044 A CN 201710176044A CN 106988491 A CN106988491 A CN 106988491A
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- Prior art keywords
- water pump
- cpc
- water
- valve
- temperature controller
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005494 condensation Effects 0.000 title claims abstract description 15
- 238000009833 condensation Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004134 energy conservation Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
- H02S40/22—Light-reflecting or light-concentrating means
-
- 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
- Y02A20/108—Rainwater harvesting
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- 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
- Y02E10/52—PV systems with concentrators
-
- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
Flat roof is saved the present invention relates to one kind collection rainfall pattern CPC condensation photovoltaics, including slot type roof, slot type roof includes backboard, heat insulation layer, CPC concentrators, the delivery port and water inlet on slot type roof are respectively provided with captation and division box, temperature controller is connected with turn on circulation line between captation output end and division box input, valve A, water collector A and water pump A, temperature controller output end is provided with two branch roads side by side, valve B, water collector B and water pump B are sequentially connected on another branch road of the output end of temperature controller, temperature controller and valve A, valve B, water pump A, the equal connections of water pump B.The beneficial effects of the invention are as follows：Using CPC concentrators, light concentrating times reach 2~6 times, it is possible to increase Solar use efficiency, reduce the quantity of photovoltaic cell；Rainy day collects rainwater, fine day building energy conservation；Summer cools down roof, winter ceiling heating；The sponge cities for being applied to rainwater-collecting, realize the efficient utilization of architecture-integral more.
Description
Technical field
Field is utilized the invention belongs to solar building, is related to a kind of collection rainfall pattern CPC condensation photovoltaics and saves flat roof.
Background technology
With the reduction of non-renewable energy resources, people are badly in need of seeking a kind of new energy instead of the old energy, and solar energy is used as one
Plant clean, the free of contamination energy, the primary selection as the mankind.Nowadays in all trades and professions, generally using solar energy, start to dig
Dig the greatest benefit of solar energy.Photovoltaic generating system it is increasingly mature, effectively combined with solar energy, as part daily life section
The component of energy product.
In the daily life of modern society, there is the product of many utilization solar energy, water collection type CPC condensation photovoltaics energy-conservation
Roof, with extensive market prospects.Present existing static concentrating photovoltaic roof, some be confined to single generating or
Heating function.And water collection type CPC condensation photovoltaics energy-conservation roof, cogeneration of heat and power is simple land productivity compared with other photovoltaic cells
With air cooling, this device makes the generating efficiency of photovoltaic cell reach a high value using Water Cooling Technology.This energy-conservation roof can lead to
Cross collection rainwater and turn to own use, domestic water is preheated, economized on resources.Collection rainfall pattern CPC condensation photovoltaics, which save flat roof, to be had
Efficient operating mode, cost is low, the problem of overcoming many products single production capacity.
The content of the invention
The technical problem to be solved in the present invention is：Based on above mentioned problem, the present invention provides a kind of collection rainfall pattern CPC condensation photovoltaics
Save flat roof.
The present invention solves a technical scheme being used of its technical problem：One kind collection rainfall pattern CPC condensation photovoltaic energy-conservations
Flat roof, includes the slot type roof of horizontal positioned, and slot type roof includes slot type backboard, the insulation located at backboard inner bottom surface
At layer, the uniform CPC concentrators that the bottom opening above heat insulation layer is mounted side by side, the bottom opening of CPC concentrators
Conduit is offered in heat insulation layer, conduit water outlet end inwall is provided with sensor, and channel floor is provided with support frame, supported
Photovoltaic cell is installed, photovoltaic cell is located at CPC concentrator intracavitary at the top of frame；Delivery port and the water inlet difference on slot type roof
Equipped with captation and division box, it is sequentially connected on the circulation line between captation output end and division box input
Have temperature controller, valve A, water collector A and a water pump A, temperature controller output end provided with two branch roads side by side, valve B, water collector B and water pump B according to
It is secondary to be connected on another branch road of the output end of temperature controller, temperature controller and valve A, valve B, water pump A, the equal connections of water pump B.
Further, water pump B output end is connected with filter.
Further, CPC concentrators are in the bowl-shape of indent, and the inner surface of CPC concentrators is reflective mirror, and mirror reflection is too
On sunlight to photovoltaic cell.
Further, electrical energy drive water pump A, water pump B, the temperature controller of photovoltaic cell generation, unnecessary electricity is stored in storage
Battery is interior or is transported to power network.
Further, photovoltaic cell series connection connection, photovoltaic cell connection has current-collector and inverter.
Further, photovoltaic cell series connection connection, photovoltaic cell connection has current-collector and inverter.
The beneficial effects of the invention are as follows：(1) CPC concentrators are used, light concentrating times reach 2~6 times, it is possible to increase solar energy
Utilization ratio, reduces the quantity of photovoltaic cell；(2) rainy day collects rainwater, fine day building energy conservation；(3) summer cools down to roof,
Winter ceiling heating；(4) it is applied to the sponge city of rainwater-collecting more, realizes the efficient utilization of architecture-integral.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation on slot type roof；
Fig. 3 is apparatus of the present invention operational flow diagram；
Wherein：1. backboard, 2.CPC concentrators, 3. photovoltaic cells, 4. sensors, 5. support frames, 6. conduits, 7. thermal insulation separations
Thermosphere, 8. valve A, 9. temperature controllers, 10. captations, 11. valve B, 12. water collector B, 13. water pump B, 14. filters, 15. collection
Hydrophone A, 16. water pump A, 17. division boxs.
Embodiment
Presently in connection with specific embodiment, the invention will be further described, following examples be intended to illustrate invention rather than
Limitation of the invention further.
A kind of collection rainfall pattern CPC condensation photovoltaics as shown in Figure 1, 2 save flat roof, include the slot type roof of horizontal positioned,
Slot type roof includes slot type backboard 1, the heat insulation layer 7 located at the inner bottom surface of backboard 1, is uniformly mounted side by side in heat insulation layer
Conduit 6 is offered in heat insulation layer 7 at the CPC concentrators 2 of the bottom opening of 7 tops, the bottom opening of CPC concentrators 2,
The water outlet end inwall of conduit 6 is provided with sensor 4, and the bottom of conduit 6 is provided with support frame 5, and the top of support frame 5 is provided with photovoltaic
Battery 3, photovoltaic cell 3 is located at the intracavitary of CPC concentrators 2；The delivery port and water inlet on slot type roof are respectively provided with captation 10
With division box 17, temperature control is connected with turn on the circulation line between the output end of captation 10 and the input of division box 17
Device 9, valve A8, water collector A15 and water pump A16, the output end of temperature controller 9 are provided with two branch roads, valve B11, water collector B12 and water side by side
Pump B13 is sequentially connected on another branch road of the output end of temperature controller 9, temperature controller 9 and valve A8, valve B11, water pump A16, water pump
The equal connections of B13.
Division box 17 is conducive in branch road by the water through pump A uniformly being divided to each conduit 6 on slot type roof, keeps
Water is uniform in each conduit 6.Captation 17 puts together the water of each delivery port of conduit 6, and temperature is flow to after being well mixed
Device 9 is controlled, is easy to that the average temperature of water is measured and controlled.
Water pump B13 output end is connected with filter 14.
CPC concentrators 2 are bowl-shape in indent, and the inner surface of CPC concentrators 2 is reflective mirror, and mirror reflection sunshine is extremely
On photovoltaic cell 3.The indent parabola face of CPC concentrators 2 is separately mounted to the both sides of photovoltaic cell 3, and is worn with setscrew
Cross heat insulation layer 7 to be fixed on backboard 1, surface directly and air contact, according to concentrating light principles, is radiated on photovoltaic cell 3
Solar radiation reach 2~6 times.
Electrical energy drive water pump A16, water pump B13, the temperature controller 9 of the generation of photovoltaic cell 3, unnecessary electricity are stored in battery
It is interior or be transported to power network.
Photovoltaic cell 3 is connected in series, and the connection of photovoltaic cell 3 has current-collector and inverter.
Valve and water pump are adjusted the sensor and temperature controller of running.Rainy day valve A is opened, and valve B is closed, by rainwater collection
Collect in water collector A.When fine day water level is less than the 1/10 of conduit, water pump A operatings, valve A and valve B are closed, and are stored in water collector
Water is flowed into slot type roof through water pump, and when water level is higher than the 9/10 of conduit, water pump A is closed, now the water in slot type roof by
The heat that solar energy and photovoltaic cell capable of generating power are produced.When the coolant-temperature gage in tank reaches 20 DEG C, temperature controller control valve B is beaten
Open so that hot water is flowed into water collector B, is used by pump B towards interior, pump B hot water is handled by filter again, this
The water of branch road outflow is preheated equivalent to domestic water.When hot water is bled off, water level is again below the 1/10 of conduit, and valve B is closed
Close, valve A is closed, the water stored in water collector is flowed into slot type roof through pump A, form circulating water heating process.
As Fig. 3 shows, a part of solar energy changes into direct current by photovoltaic cell, and then being changed into by inverter can be with
The alternating current used for household electrical appliance, or electricity can be connected to the grid, temperature controller and water pump in the system be also by light
Lie prostrate battery power.Water in slot type roof conduit reduces the temperature of photovoltaic battery panel close to photovoltaic battery panel, water by part too
The positive heat that can be produced with photovoltaic cell capable of generating power, improves photoelectric transformation efficiency, obtained hot water is filtered through filter
After can be preheated with domestic hot-water supply.Summer rainwater flows through the heat that slot type roof absorbs roof, and water temperature reaches 20 DEG C or so, is less than
Indoor temperature, the effect for having cooling roof；Winter photovoltaic generation, water temperature rise, higher than indoor temperature, there is the work of ceiling heating
With.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (5)
1. one kind collection rainfall pattern CPC condensation photovoltaics save flat roof, it is characterized in that：Slot type roof including horizontal positioned, slot type room
Top includes slot type backboard (1), the heat insulation layer (7) located at backboard (1) inner bottom surface, is uniformly mounted side by side in heat insulation layer
(7) opened up in the heat insulation layer (7) at the CPC concentrators (2) of the bottom opening above, the bottom opening of CPC concentrators (2)
There is conduit (6), conduit (6) water outlet end inwall is provided with sensor (4), and conduit (6) bottom is provided with support frame (5), support
Photovoltaic cell (3) is installed, photovoltaic cell (3) is located at CPC concentrators (2) intracavitary at the top of frame (5)；The delivery port on slot type roof
Captation (10) and division box (17) are respectively provided with water inlet, captation (10) output end and division box (17) are defeated
Enter and be connected with temperature controller (9), valve A (8), water collector A (15) and water pump A (16), temperature controller in turn on the circulation line between end
(9) output end is provided with two branch roads side by side, and valve B (11), water collector B (12) and water pump B (13) are sequentially connected to temperature controller (9)
On another branch road of output end, temperature controller (9) and valve A (8), valve B (11), water pump A (16), water pump B (13) connection.
2. collection rainfall pattern CPC condensation photovoltaics according to claim 1 save flat roof, it is characterized in that：Described water pump B (13)
Output end be connected with filter (14).
3. collection rainfall pattern CPC condensation photovoltaics according to claim 1 save flat roof, it is characterized in that：Described CPC concentrators
(2) in the bowl-shape of indent, the inner surface of CPC concentrators (2) is on reflective mirror, mirror reflection sunshine to photovoltaic cell (3).
4. collection rainfall pattern CPC condensation photovoltaics according to claim 1 save flat roof, it is characterized in that：Described photovoltaic cell
(3) electrical energy drive water pump A (16), water pump B (13), the temperature controller (9) produced, unnecessary electricity is stored in battery or defeated
It is sent to power network.
5. collection rainfall pattern CPC condensation photovoltaics according to claim 1 save flat roof, it is characterized in that：Described photovoltaic cell
(3) it is connected in series, photovoltaic cell (3) connection has current-collector and inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176044.3A CN106988491A (en) | 2017-03-23 | 2017-03-23 | Collect rainfall pattern CPC condensation photovoltaics and save flat roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176044.3A CN106988491A (en) | 2017-03-23 | 2017-03-23 | Collect rainfall pattern CPC condensation photovoltaics and save flat roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106988491A true CN106988491A (en) | 2017-07-28 |
Family
ID=59412930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710176044.3A Pending CN106988491A (en) | 2017-03-23 | 2017-03-23 | Collect rainfall pattern CPC condensation photovoltaics and save flat roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106988491A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419773A (en) * | 2017-09-11 | 2017-12-01 | 天津市鑫天元机械设备有限公司 | A kind of water collector |
| CN111779131A (en) * | 2020-07-09 | 2020-10-16 | 马贞超 | Steel construction house system and connection structure of steel construction post and steel construction roof beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319579A (en) * | 2008-06-13 | 2008-12-10 | 昆山太得隆机械有限公司 | Solar construction integrated energy-saving system |
| CN101557178A (en) * | 2009-05-11 | 2009-10-14 | 南京工业大学 | Static concentrating photovoltaic roof combined heat and power generation system |
| CN102013839A (en) * | 2009-09-04 | 2011-04-13 | 李美芳 | Building material-type roof photovoltaic tracking tile generating system |
| CN102505811A (en) * | 2011-10-20 | 2012-06-20 | 中海阳新能源电力股份有限公司 | Solar photovoltaic roof system |
| CN202361548U (en) * | 2011-12-08 | 2012-08-01 | 金湖庭 | Energy saving system device based on peripheral water cycle of buildings |
| CN103438589A (en) * | 2013-08-30 | 2013-12-11 | 南京工业大学 | CPC concentrating photovoltaic combined heat and power generation system based on heat pipe technology |
| CN104848564A (en) * | 2015-05-14 | 2015-08-19 | 东南大学 | Solar photovoltaic photo-thermal double efficient heat exchange device |
| CN105135711A (en) * | 2015-09-25 | 2015-12-09 | 中国科学院电工研究所 | Paraboloid-groove-type solar concentrator capable of collecting rainwater |
| CN204993232U (en) * | 2015-09-24 | 2016-01-20 | 华北电力大学 | Solar cell heats and water -collection device |
| CN206616787U (en) * | 2017-03-23 | 2017-11-07 | 常州大学 | Collect rainfall pattern CPC condensation photovoltaics and save flat roof |
-
2017
- 2017-03-23 CN CN201710176044.3A patent/CN106988491A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319579A (en) * | 2008-06-13 | 2008-12-10 | 昆山太得隆机械有限公司 | Solar construction integrated energy-saving system |
| CN101557178A (en) * | 2009-05-11 | 2009-10-14 | 南京工业大学 | Static concentrating photovoltaic roof combined heat and power generation system |
| CN102013839A (en) * | 2009-09-04 | 2011-04-13 | 李美芳 | Building material-type roof photovoltaic tracking tile generating system |
| CN102505811A (en) * | 2011-10-20 | 2012-06-20 | 中海阳新能源电力股份有限公司 | Solar photovoltaic roof system |
| CN202361548U (en) * | 2011-12-08 | 2012-08-01 | 金湖庭 | Energy saving system device based on peripheral water cycle of buildings |
| CN103438589A (en) * | 2013-08-30 | 2013-12-11 | 南京工业大学 | CPC concentrating photovoltaic combined heat and power generation system based on heat pipe technology |
| CN104848564A (en) * | 2015-05-14 | 2015-08-19 | 东南大学 | Solar photovoltaic photo-thermal double efficient heat exchange device |
| CN204993232U (en) * | 2015-09-24 | 2016-01-20 | 华北电力大学 | Solar cell heats and water -collection device |
| CN105135711A (en) * | 2015-09-25 | 2015-12-09 | 中国科学院电工研究所 | Paraboloid-groove-type solar concentrator capable of collecting rainwater |
| CN206616787U (en) * | 2017-03-23 | 2017-11-07 | 常州大学 | Collect rainfall pattern CPC condensation photovoltaics and save flat roof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419773A (en) * | 2017-09-11 | 2017-12-01 | 天津市鑫天元机械设备有限公司 | A kind of water collector |
| CN111779131A (en) * | 2020-07-09 | 2020-10-16 | 马贞超 | Steel construction house system and connection structure of steel construction post and steel construction roof beam |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |
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| RJ01 | Rejection of invention patent application after publication |