CN202290634U - Movable solar battery board array surface dust removing system - Google Patents
Movable solar battery board array surface dust removing system Download PDFInfo
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- CN202290634U CN202290634U CN201120360063XU CN201120360063U CN202290634U CN 202290634 U CN202290634 U CN 202290634U CN 201120360063X U CN201120360063X U CN 201120360063XU CN 201120360063 U CN201120360063 U CN 201120360063U CN 202290634 U CN202290634 U CN 202290634U
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- 239000000428 dust Substances 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000003491 array Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000005453 pelletization Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
A movable solar battery board array surface dust removing system belongs to the technical field of solar photovoltaic generating and comprises a high-pressure water generating device, a conveying pipeline, an adjusting mechanism, at least one ejecting device and a moving trolley. The high-pressure water generating device and the adjusting mechanism are integrally fixed on the moving trolley, and high-pressure water generated by the high-pressure water generating device is conveyed to the ejecting device fixedly installed on the adjusting mechanism through the conveying pipeline and forms fan-shaped high-pressure water flow through the ejecting device. The high-pressure water flow has an impact and shearing comprehensive function on dust coated on the surface of solar battery board arrays and achieves dust removing, and the moving trolley can achieve moving type dust removing by keeping certain feeding speed. The movable solar battery board array surface dust removing system is simple in structure, low in cost and high in efficiency, cannot affect design and installation of the solar battery board arrays, cannot damage surfaces of the solar battery boards, causes no environment pollution, can achieve wide-range dust removing and has an auxiliary frost, ice and snow removing and cooling function.
Description
Technical field
The utility model relates to a kind of technology that dedusting is carried out on the solar panel array surface, relates in particular to a kind of mobile solar energy panel array surface dust pelletizing system, belongs to the solar photovoltaic technology field.
Background technology
In whole solar photovoltaic generation system, solar panel belongs to one of core component, and general series connection and the parallel way of adopting formed solar panel array with it, is installed in outdoor reception sunshine and produces electric energy.But in use,, thereby can reduce the usefulness that its photoelectric transformation efficiency influences whole solar photovoltaic generation system, therefore need regularly dedusting to be carried out on the solar panel array surface if dust and dirt is coverd with on the solar panel array surface.In addition, research shows that solar panel is exposed to the sun down at the sun, and its surface temperature rises and generating efficiency decline, and solar panel array designs relatively difficulty of good aeration-cooling passage because size is bigger.
In China; Large-scale solar photovoltaic power plant often is distributed in the desert belt; Solar panel array need stand heavy tests such as dust storm, frost sleet, and along with human cost rises, it is little to adopt a large amount of manual works to carry out the dedusting feasibility; Best bet is the cleaner of design special, and can assist and lower the temperature.Existing dedusting technology is primarily aimed at the monolithic solar panel, and dedusting is limited in scope, and adopts friction solar panel surface to realize dedusting, thereby is prone to produce the more dust and dirt of static absorption under the long-term accumulated; Or adopt fluid that the impact and the shearing force of dust and dirt are carried out dedusting; But dust arrester often is fixedly installed to the solar panel array periphery; This is to the design of solar panel array and install the certain limitation requirement is all arranged, and this dust arrester long term exposure is outdoor is prone to affected by environment and is damaged.Given this; Preferably can design the special-purpose dust pelletizing system that a cover is independent of solar panel array; Can under the prerequisite of design that does not restrict existing solar panel array and installation, realize the large tracts of land dedusting, the solar panel surface of not wearing and tearing again can be adjusted and self adapts to all solar panel arrays; Overall cost is low, is convenient to later maintenance.
The utility model content
The purpose of the utility model is to overcome prior art is carried out dedusting to solar panel array deficiency; A kind of system of mobile solar energy panel array surface dedusting is proposed; The mounting means that can adapt to existing solar panel array; Dedusting is on a large scale carried out on the solar panel array surface, also can be played auxiliary remove frost, ice and snow and cooling effect.
The technical scheme of the utility model is following:
A kind of system of mobile solar energy panel array surface dedusting, it is characterized in that: this system comprises high pressure water generating device, transmission pipeline and the injection apparatus that at least one is made up of shower nozzle and nozzle; Described high pressure water generating device contains high-pressure hydraulic pump, power-equipment, storage tank, Pressure gauge, safety valve, pressure regulator valve and control valve, and described storage tank, Pressure gauge and safety valve link to each other with described high-pressure hydraulic pump respectively; The arrival end of described pressure regulator valve links to each other with the discharge outlet of high-pressure hydraulic pump, and the port of export of pressure regulator valve links to each other with the arrival end of control valve, and the port of export of control valve links to each other with described transmission pipeline, it is characterized in that: this system also comprises governor motion and trolley; Said governor motion is made up of base, L shaped connecting rod, spring, governor motion first connecting rod, governor motion second connecting rod and hollow pipe; Base and trolley are fixed; One end of L shaped connecting rod is fixed on the base; The L shaped connecting rod other end links to each other through rotating shaft with an end of governor motion first connecting rod; The two ends of spring connect L shaped connecting rod and governor motion first connecting rod respectively, and the other end of governor motion first connecting rod links to each other through ball pivot with an end of governor motion second connecting rod, and the other end of governor motion second connecting rod is fixedly connected with hollow pipe; The hollow pipe closed at both ends is provided with an import and at least one outlet along axis direction on hollow tube wall, described import links to each other with transmission pipeline, and said outlet links to each other with injection apparatus; Said high pressure water generating device and governor motion by overall fixed on trolley movably.
The technical characterictic of the utility model also is: described power-equipment adopts motor, diesel engine or gasoline engine, and the width of the carbody of said trolley is less than the vertical range h between two row's solar panel arrays.
The technical characterictic of the utility model also is: said shower nozzle is fixed single hole shower nozzle, and said nozzle is a fan nozzle, the coaxial installation of shower nozzle and nozzle.
The utility model utilizes High-Pressure Water that the dust and dirt generation of solar panel array surface coverage is impacted and shears comprehensive function and realize dedusting; Compared with prior art; Have the following advantages and the high-lighting effect: 1. the utility model can be realized portable dedusting, and is simple in structure, integrated cost is low, efficiency of dust collection is high; 2. the utility model is adjusted the distance of injection apparatus to the solar panel array surface through governor motion; And the drift angle and the angle of shock when spraying; The different installation and the size that can initiatively adapt to solar panel array; Flexibility is high, through changing the high-pressure hydraulic pump output pressure and changing the nozzle model and can improve dedusting usefulness; 3. design and the installation that has solar panel array now do not exerted an influence.In addition, this system also can play the effect of solar panel array being carried out snow removing in winter, defrosting in autumn and cooling, thereby improves the photoelectric transformation efficiency of solar panel, increases the service life, and saves the manpower maintenance cost.
Description of drawings
Fig. 1 is the main assembly block diagram of the utility model.
When Fig. 2 carries out dedusting for the said system of the utility model, the relativeness sketch map of high pressure water generating device, governor motion, trolley and solar panel array.
Sketch map when Fig. 3 moves dedusting for the utility model in large-scale solar panel array.
Fig. 4 is governor motion and an injection apparatus scheme of installation in the utility model.
Fig. 5 is the structural representation of injection apparatus in the utility model.
Fig. 6 is plane and the surperficial angular relationship of solar panel array that injection apparatus ejection High-Pressure Water forms in the utility model.
Among the figure: the 1-high-pressure hydraulic pump; The 2-power-equipment; The 3-storage tank; The 4-Pressure gauge; The 5-safety valve; The 6-pressure regulator valve; The 7-control valve; The 8-transmission pipeline; The 9-injection apparatus; The 10-governor motion; The 11-trolley; The 12-solar panel array; The 13-base; 14-L shape connecting rod; The 15-rotating shaft; The 16-spring; 17-governor motion first connecting rod; The 18-ball pivot; 19-governor motion second connecting rod; The 20-hollow pipe; The 21-shower nozzle; The 22-nozzle.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
The system of a kind of mobile solar energy panel array surface dedusting that the utility model provides; Utilize high-pressure hydraulic pump to produce water under high pressure; Through transmission pipeline water under high pressure is delivered to each injection apparatus, regulating the high-pressure hydraulic pump output pressure through pressure regulator valve is 2MPa～4MPa with the water under high pressure pressure that guarantees each injection apparatus exit; Water under high pressure forms High-Pressure Water through injection apparatus, utilizes High-Pressure Water that the dust and dirt of solar panel array surface coverage is produced impact and shears comprehensive function, and then realizes dedusting.This system comprises a trolley, can realize portable dedusting.
Fig. 1 is the main assembly block diagram of the said dust pelletizing system of the utility model; This dust pelletizing system comprises high pressure water generating device, transmission pipeline 8, governor motion 10, at least one injection apparatus 9 and trolley 11, and injection apparatus 9 is fixedly mounted on the governor motion 11; Described high pressure water generating device contains high-pressure hydraulic pump 1, power-equipment 2, storage tank 3, Pressure gauge 4, safety valve 5, pressure regulator valve 6 and control valve 7, and described storage tank, Pressure gauge, safety valve link to each other with described high-pressure hydraulic pump 1 respectively; The arrival end of described pressure regulator valve 6 links to each other with the discharge outlet of high-pressure hydraulic pump 1; The port of export of pressure regulator valve links to each other with the arrival end of control valve 7; The port of export of control valve links to each other with described transmission pipeline 8; Said control valve is used for the On/Off High-Pressure Water, and described power-equipment 2 can be motor, gasoline engine or diesel engine, is used to drive high-pressure hydraulic pump work.Said high pressure water generating device and governor motion by overall fixed on trolley 11 movably.
When Fig. 2 moves dedusting for the said system of the utility model, the relativeness sketch map of high pressure water generating device, governor motion 10, trolley 11 and solar panel array 12.Wherein high pressure water generating device, governor motion are fixed on the trolley, can wholely move.Solar panel array is tilted fixed installation; Injection apparatus 9 is fixedly installed on the governor motion 10, after regulating through governor motion, makes nozzle towards solar panel array upper surface one side.
Sketch map when Fig. 3 moves dedusting for the utility model in large-scale solar panel array.Solar panel array often is spliced into a row, and large solar photovoltaic power plant is made up of the plurality of rows solar panel array, leaves certain distance between every row's solar panel array, is convenient to receive sunshine.The said system of the utility model is placed between two row's solar panel arrays; Trolley 11 moves along the solar panel array orientation; Its width of the carbody needs less than the vertical range h between two row's solar panel arrays, with being installed in injection apparatus on the governor motion towards the solar panel upper surface, chooses suitable nozzle parameter according to the solar panel array setting angle; And secured adjusted mechanism, realize moving dedusting.
Fig. 4 is the schematic diagram of governor motion described in the utility model; Governor motion is used to adjust distance and the spray angle of injection apparatus to the solar panel array surface, and governor motion is made up of base 13, L shaped connecting rod 14, spring 16, governor motion first connecting rod 17, governor motion second connecting rod 19 and hollow pipe 20; Base and trolley are fixed; One end of L shaped connecting rod is fixed on the base; The L shaped connecting rod other end links to each other through rotating shaft 15 with an end of governor motion first connecting rod 17, and the two ends of spring 16 connect L shaped connecting rod and governor motion first connecting rod respectively, through the angle β between flexible L shaped connecting rod of scalable and the governor motion first connecting rod; The other end of governor motion first connecting rod links to each other through ball pivot 18 with an end of governor motion second connecting rod; Can be after ball pivot be adjusted to a certain orientation with the governor motion second connecting rod, through screw locking ball pivot, the other end of governor motion second connecting rod is fixedly connected with hollow pipe; Hollow pipe 20 closed at both ends are provided with an import and at least one outlet along axis direction on hollow tube wall, described import links to each other with transmission pipeline, and said outlet links to each other with injection apparatus 9.
Fig. 5 is the structural representation of the described injection apparatus of the utility model.Each injection apparatus is made up of a shower nozzle 21 and nozzle 22, and nozzle is the executive component that cleans dedusting, and its operation principle is the contraction through nozzle endoporus cross section, and the form of water under high pressure with high-speed water jet outwards sprayed.Shower nozzle is fixed single hole shower nozzle in the utility model; Nozzle is the single hole fan nozzle, adopts fan nozzle guaranteeing increasing clean range under certain cleaning performance prerequisite; The two installs shower nozzle and nozzle through the screw thread rotation co-axial seal, is convenient to when nozzle loses efficacy, change separately.Injection apparatus is fixed on the hollow pipe 20, can adopt one or more installations side by side, and the water under high pressure of hollow pipe hollow space forms the fan-shaped High-Pressure Water of certain angle through shower nozzle and nozzle, can carry out dedusting to the solar panel array surface of certain limit.
Fig. 6 is the plane of injection apparatus 9 ejection High-Pressure Waters formation and the angular relationship on solar panel array 12 surfaces.The surface of solar panel array and ground angle are established angle γ; Hollow pipe 20 is parallel with the solar panel array surface; All injection apparatus that are installed on the hollow pipe are drift angle α in the projection straight line of solar panel array surface formation and the top margin angle of solar panel array, and the angle on the High-Pressure Water plane of a plurality of nozzles ejections and solar panel array surface is angle of shock θ.Wherein angle β becomes complementary relationship among established angle γ and Fig. 4, can realize through regulating spring shown in Fig. 4 16, can regulate drift angle α and angle of shock θ respectively through regulating ball pivot 18.
The geographical position of solar photovoltaic power plant is different with meteorological condition, and the degree of solar panel surface dirt is different with type.Solar panel surface dirt belongs to the soft dirt layer of non-infiltration, mainly comprises: calcium carbonate in dust storm, ice and snow, the rainwater and grease, and composition is various, and its fouling and formation reason are very complicated.In this case; The solar panel surface contaminant is the main object of dedusting; In the dust pelletizing system practical implementation, should carry out specificity analysis by above-mentioned operating mode; Understand fully formation reason, condition and the character of dirt, take all factors into consideration the size and the installation of solar panel array again, thereby confirm optimum operating pressure, injection apparatus quantity, fan nozzle model and jet length, drift angle and the angle of shock of high-pressure hydraulic pump.
The jet that the described injection apparatus of the utility model produces belongs to the continuous water jet of non-submersion property; There is an impact peak value during beginning; The basic impact that keeps the solar panel array surface-stable, makes the solar panel array surface reach cleaning at continuous firing a period of time in dust removal process; The feed speed that under the prerequisite that guarantees cleaning performance, improves trolley also can reach the water saving purpose, and its feed speed size is confirmed in practice of construction.
The transmission pipeline 8 that the utility model connects from control valve 7 ports of export can be high pressure resistant, also need guarantee the sealing that each joint is good in the construction.
The medium of realizing dedusting in the utility model is a water; The composition that does not contain other interpolation; Generally can remove dust and dirt; But because the grease class dust and dirt that covers solar panel surface can form oil film on the solar panel array surface after through longer a period of time, the adhesion on surface is very big, can dissolve oil film through in water, adding the specific aim chemical composition.
Claims (4)
1. mobile solar energy panel array surface dust pelletizing system, this system comprises high pressure water generating device, transmission pipeline and the injection apparatus that at least one is made up of shower nozzle and nozzle; Described high pressure water generating device contains high-pressure hydraulic pump (1), power-equipment (2), storage tank (3), Pressure gauge (4), safety valve (5), pressure regulator valve (6) and control valve (7); Described storage tank, Pressure gauge and safety valve link to each other with described high-pressure hydraulic pump respectively; The arrival end of described pressure regulator valve links to each other with the discharge outlet of high-pressure hydraulic pump; The port of export of pressure regulator valve links to each other with the arrival end of control valve; The port of export of control valve links to each other with described transmission pipeline, it is characterized in that: this dust pelletizing system also comprises governor motion (10) and trolley (11); Said governor motion is made up of base (13), L shaped connecting rod (14), spring (16), governor motion first connecting rod (17), governor motion second connecting rod (19) and hollow pipe (20); Base and trolley are fixed; One end of L shaped connecting rod is fixed on the base; The L shaped connecting rod other end links to each other through rotating shaft (15) with an end of governor motion first connecting rod; The two ends of spring connect L shaped connecting rod and governor motion first connecting rod respectively, and the other end of governor motion first connecting rod links to each other through ball pivot (18) with an end of governor motion second connecting rod, and the other end of governor motion second connecting rod is fixedly connected with hollow pipe; The hollow pipe closed at both ends is provided with an import and at least one outlet along axis direction on hollow tube wall, described import links to each other with transmission pipeline, and said outlet links to each other with injection apparatus (9); Said high pressure water generating device and governor motion by overall fixed on trolley movably.
2. according to the described a kind of mobile solar energy panel array of claim 1 surface dust pelletizing system, it is characterized in that: described power-equipment adopts motor, diesel engine or gasoline engine.
3. according to the described a kind of mobile solar energy panel array of claim 1 surface dust pelletizing system, it is characterized in that: the width of the carbody of said trolley is less than the vertical range h between two row's solar panel arrays.
4. according to the described a kind of mobile solar energy panel array of claim 1 surface dust pelletizing system, it is characterized in that: said shower nozzle is fixed single hole shower nozzle, and said nozzle is a fan nozzle, the coaxial installation of shower nozzle and nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120360063XU CN202290634U (en) | 2011-09-23 | 2011-09-23 | Movable solar battery board array surface dust removing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120360063XU CN202290634U (en) | 2011-09-23 | 2011-09-23 | Movable solar battery board array surface dust removing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202290634U true CN202290634U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120360063XU Expired - Fee Related CN202290634U (en) | 2011-09-23 | 2011-09-23 | Movable solar battery board array surface dust removing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202290634U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441541A (en) * | 2011-09-23 | 2012-05-09 | 程智锋 | Solar panel array surface dust removal system and method |
| CN102847698A (en) * | 2012-08-31 | 2013-01-02 | 华南理工大学 | Dust removal device for photovoltaic cell arrays |
| CN104014506A (en) * | 2013-03-03 | 2014-09-03 | 蔡瑾玒 | Device for removing snow on solar cell panel |
| CN113182249A (en) * | 2021-04-14 | 2021-07-30 | 燕山大学 | High-pressure cleaning machine and cleaning method for disc parts |
-
2011
- 2011-09-23 CN CN201120360063XU patent/CN202290634U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441541A (en) * | 2011-09-23 | 2012-05-09 | 程智锋 | Solar panel array surface dust removal system and method |
| CN102441541B (en) * | 2011-09-23 | 2013-10-30 | 程智锋 | Solar panel array surface dust removal system and method |
| CN102847698A (en) * | 2012-08-31 | 2013-01-02 | 华南理工大学 | Dust removal device for photovoltaic cell arrays |
| CN102847698B (en) * | 2012-08-31 | 2015-03-11 | 华南理工大学 | Dust removal device for photovoltaic cell arrays |
| CN104014506A (en) * | 2013-03-03 | 2014-09-03 | 蔡瑾玒 | Device for removing snow on solar cell panel |
| CN113182249A (en) * | 2021-04-14 | 2021-07-30 | 燕山大学 | High-pressure cleaning machine and cleaning method for disc parts |
| CN113182249B (en) * | 2021-04-14 | 2022-08-05 | 燕山大学 | High-pressure cleaning machine and cleaning method for disc parts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHANG BO Free format text: FORMER OWNER: CHENG ZHIFENG Effective date: 20140224 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Bo Inventor before: Cheng Zhifeng |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHENG ZHIFENG TO: ZHANG BO |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140224 Address after: 100085 Beijing city Haidian District road month Jian Qing Park 2 Building 2 unit 202 Patentee after: Zhang Bo Address before: 100085 Beijing city Haidian District Xueqing Road Jianqing Park Building No. 2 2 unit 202 Patentee before: Cheng Zhifeng |
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| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Kang Dahai Inventor before: Zhang Bo |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180206 Address after: 100048 Beijing city Haidian District Road 9 No. 9 Building 2 layer 203 Patentee after: Beijing dynamic co Technology Co., Ltd. Address before: 100085 Beijing city Haidian District road month Jian Qing Park 2 Building 2 unit 202 Patentee before: Zhang Bo |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20190923 |