CN109556302B - Disc type solar heat collector based on thermal capillary force effect - Google Patents
Disc type solar heat collector based on thermal capillary force effect Download PDFInfo
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- CN109556302B CN109556302B CN201811415617.4A CN201811415617A CN109556302B CN 109556302 B CN109556302 B CN 109556302B CN 201811415617 A CN201811415617 A CN 201811415617A CN 109556302 B CN109556302 B CN 109556302B
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- 230000000694 effects Effects 0.000 title description 2
- 238000010521 absorption reaction Methods 0.000 claims abstract description 97
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000012212 insulator Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 18
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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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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Abstract
The invention relates to a disk type solar heat collector based on thermal capillary force action, and belongs to the technical field of solar heat collectors. The disc type solar heat collector is characterized in that a heat insulator is arranged outside a disc, a heat absorption coating is arranged on the surface of the disc, a serpentine structure consisting of a plurality of heat absorption pipes and elbows is arranged on the disc, two heat absorption pipes distributed along the radial direction of the disc in the serpentine structure are in closed connection through the elbows, and the pipe orifice outlet of each heat absorption pipe is positioned at the center of the disc; the pipeline passes through the center positions of the disc and the heat insulator, the top of the pipeline is provided with a cold water outlet, the bottom of the pipeline is provided with a cold water inlet, a plurality of vertically arranged heat absorption pipes are arranged in the pipeline, the pipe orifice outlets of every two heat absorption pipes positioned at the center of the disc are respectively connected with vertically arranged heat absorption pipes in the pipeline, and the two vertically arranged heat absorption pipes are connected with each other in a sealing way through a small elbow to form a sealed heat absorption pipeline; before the sealing heat absorption pipeline is processed, the working medium is filled after vacuumizing. The invention has the advantages of simple structure, stable operation and the like.
Description
Technical Field
The invention relates to a disk type solar heat collector based on thermal capillary force action, and belongs to the technical field of solar heat collectors.
Background
The solar heat collector for the hot water system is mainly a thermosiphon type flat plate type solar heat collector and a vacuum tube type solar heat collector, which are mature and stable in China after long-time development and large-area popularization, wherein the flat plate type solar heat collector is applied earlier and mainly comprises a heat absorbing plate, a transparent cover plate, a heat insulating layer, a shell and the like. Due to its structural limitations, bottlenecks in heat collection efficiency have been reached. Meanwhile, the interfaces of the vacuum heat collecting pipes are more due to the distributed arrangement of the vacuum heat collecting pipes, hidden danger of water leakage exists, the maintenance cost of the whole system is high, and the production cost of the vacuum heat collecting pipes is high.
Disclosure of Invention
Aiming at the problems and the defects existing in the prior art, the invention provides a disk type solar heat collector based on the action of thermal capillary force. The disk type solar heat collector based on the thermal capillary force has the advantages of high energy utilization rate, simple structure, stable operation and the like. The invention is realized by the following technical scheme.
The disc type solar heat collector based on the action of thermal capillary force comprises a heat absorption plate and a pipeline 3, wherein the heat absorption plate comprises a disc 1, heat absorption pipes 2, a heat insulator 5, a heat absorption coating 7 and an elbow 8, the heat insulator 5 is arranged outside the disc 1, the heat absorption coating 7 is arranged on the surface of the disc 1, a serpentine structure consisting of a plurality of the heat absorption pipes 2 and the elbow 8 is arranged on the disc 1, two heat absorption pipes 2 which are distributed along the radial direction of the disc 1 in the serpentine structure are in closed connection through the elbow 8, and the pipe orifice outlet of each heat absorption pipe 2 is positioned at the center of the disc 1; the pipeline 3 passes through the center positions of the disc 1 and the heat insulator 5, a cold water outlet 6 is arranged at the top of the pipeline 3, a cold water inlet 4 is arranged at the bottom of the pipeline 3, a plurality of vertically arranged heat absorption pipes 2 are arranged in the pipeline 3, the pipe orifice outlets of every two heat absorption pipes 2 positioned at the center of the disc 1 are respectively connected with the vertically arranged heat absorption pipes 2 in the pipeline 3, and the two vertically arranged heat absorption pipes 2 are connected with each other in a sealing way through a small elbow to form a sealing heat absorption pipe; before the sealing heat absorption pipe is processed, the working medium 10 is filled after vacuumizing.
A plurality of baffle plates 9 are arranged in the disc 3.
The inner diameter of the heat absorption tube 2 is smaller than 4mm.
The disc 1 and the heat absorption pipes 2 are preferably made of red copper, the diameter of the disc 1 is 500-1350 mm, and the radial length of each heat absorption pipe 2 on the disc 1 is more than 20 mm.
The length of the vertically arranged heat absorbing pipes 2 in the pipeline 3 is less than 2/3 of the radius of the disc 1.
The height of the part of the pipeline 3 penetrating through the disc 1 is 20-50 mm, and the length of the rest pipeline 3 is 50-400 mm.
The heat insulator 5 is high light-transmitting glass, covers the whole heat absorbing plate and vacuumizes.
The heat absorbing coating 7 is a black chromium coating.
The charging volume of the working medium 10 is 50% -70% of the volume of the heat absorption tube 2.
The disc 1 is provided with a serpentine structure formed by a plurality of heat absorption pipes 2 and elbows 8, which can be a serpentine structure formed by a plurality of heat absorption pipes 2 and elbows 8 embedded in the disc 1, or a serpentine structure formed by a plurality of heat absorption pipes 2 and elbows 8 arranged on the surface or the bottom surface of the disc 1.
The working principle of the disk type solar heat collector based on the thermal capillary force action is as follows:
Before the sealed heat absorption pipeline is processed, the working medium 10 is filled after vacuumizing, and because the working medium is partially vaporized after being filled into the heat absorption pipe 2 under the vacuum condition, a section of air lock and a section of liquid column structure is formed under the action of capillary force, the heat absorption layer 7 on the surface of the disc 1 starts absorbing heat and transmits heat to the disc 1 under the radiation of sunlight, the disc 1 heats up and then transmits heat to the heat absorption pipe 2, along with the rising of the temperature, the working medium in the heat absorption pipe 2 on the disc 1 starts expanding and further vaporizing, the working medium 10 in the heat absorption pipe 2 is pushed to move towards the heat absorption pipe in the cylinder, the driving force from the hot end to the cold end is formed, and meanwhile, the working medium in the heat absorption pipe 2 under the action of cold water in the pipeline 3 starts contracting and liquefying to further increase the driving force. Because of the randomness and asymmetry of the distribution of the working medium in the adjacent heat absorption tubes 2 on the disc 1 (the distribution of the working medium 10 in different sealed heat absorption tubes is different, so the distribution of the working medium 10 in different sealed heat absorption tubes has randomness and asymmetry), the pushing forces formed in the adjacent heat absorption tubes 2 are not equal, and the difference value of the two pushing forces is the restoring force for pushing the working medium 10 to reciprocate in the heat absorption tubes 2. The working fluid transfers heat from the disc 1 to the cold water in the pipe 3 in the form of latent heat and sensible heat under the action of the pushing force and the restoring force.
The beneficial effects of the invention are as follows:
(1) The heat absorption tube is changed from a simple straight thin tube to a serpentine structure with a plurality of elbows consisting of capillaries in shape, and the reciprocating motion of working medium in the heat absorption tube is pushed by the specific restoring force and pushing force, so that compared with the common heat tube, the heat absorption tube has the advantages of small heat transfer temperature difference and high heat exchange efficiency.
(2) Compared with the traditional structure that the heating section and the condensing section are positioned on the same plane, the condensing section is positioned below the heating section, the pipeline where the condensing section is positioned is perpendicular to the disc where the heating section is positioned, the occupied area is reduced under the same radiation power, and the condensing section is significant for a solar heat collection system.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is a partial cross-sectional view of the deck of the absorber plate of the present invention;
FIG. 4 is a cross-sectional view of a heat absorber plate of the present invention;
FIG. 5 is a partial physical view of the present invention;
FIG. 6 is a diagram of the present invention.
In the figure: 1-disc, 2-heat absorption pipe, 3-pipeline, 4-cold water inlet, 5-insulator, 6-cold water outlet, 7-heat absorption coating, 8-elbow, 9-baffle plate and 10-working medium.
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
Example 1
As shown in fig. 1 to 5, the disc type solar collector based on thermal capillary force comprises a heat absorbing plate and a pipeline 3, wherein the heat absorbing plate comprises a disc 1, heat absorbing pipes 2, a heat insulating body 5, a heat absorbing coating 7 and bends 8, the heat insulating body 5 is arranged outside the disc 1, the heat absorbing coating 7 is arranged on the surface of the disc 1, the disc 1 is provided with a serpentine structure consisting of a plurality of heat absorbing pipes 2 and 12 bends 8, two heat absorbing pipes 2 which are distributed along the radial direction of the disc 1 in the serpentine structure are in closed connection through the bends 8, and the pipe orifice outlet of each heat absorbing pipe 2 is positioned at the center of the disc 1; the pipeline 3 passes through the center positions of the disc 1 and the heat insulator 5, a cold water outlet 6 is arranged at the top of the pipeline 3, a cold water inlet 4 is arranged at the bottom of the pipeline 3, a plurality of vertically arranged heat absorption pipes 2 are arranged in the pipeline 3, the pipe orifice outlets of every two heat absorption pipes 2 positioned at the center of the disc 1 are respectively connected with the vertically arranged heat absorption pipes 2 in the pipeline 3, and the two vertically arranged heat absorption pipes 2 are connected with each other in a sealing way through a small elbow to form a sealed heat absorption pipeline; before the sealing heat absorption pipeline is processed, the working medium 10 is filled after vacuumizing.
Wherein a plurality of baffle plates 9 are arranged in the pipeline 3; the inner diameter of the heat absorption pipe 2 is 2.15mm, and the outer diameter is 3.18mm; the disc 1 and the heat absorption pipes 2 are made of red copper, the diameter of the disc 1 is 620mm, and the radial length of each heat absorption pipe 2 on the disc 1 is 300mm; the length of the heat absorption tube 2 vertically arranged in the pipeline 3 is 250mm; the height of the part of the pipeline 3 passing through the disc 1 is 50mm, and the length of the rest pipeline 3 is 400mm; the heat insulator 5 is high light-transmitting glass, covers the whole heat absorbing plate and is vacuumized, the heat absorbing coating 7 is a black chromium coating, and the filling volume of the working medium 10 is 50% of the volume of the heat absorbing pipe 2.
Example 2
As shown in fig. 1 to 6, the disc type solar collector based on thermal capillary force comprises a heat absorbing plate and a pipeline 3, wherein the heat absorbing plate comprises a disc 1, heat absorbing pipes 2, a heat insulating body 5, a heat absorbing coating 7 and bends 8, the heat insulating body 5 is arranged outside the disc 1, the heat absorbing coating 7 is arranged on the surface of the disc 1, the disc 1 is provided with a serpentine structure consisting of a plurality of heat absorbing pipes 2 and 12 bends 8, two heat absorbing pipes 2 which are distributed along the radial direction of the disc 1 in the serpentine structure are in closed connection through the bends 8, and the pipe orifice outlet of each heat absorbing pipe 2 is positioned at the center of the disc 1; the pipeline 3 passes through the center positions of the disc 1 and the heat insulator 5, a cold water outlet 6 is arranged at the top of the pipeline 3, a cold water inlet 4 is arranged at the bottom of the pipeline 3, a plurality of vertically arranged heat absorption pipes 2 are arranged in the pipeline 3, the pipe orifice outlets of every two heat absorption pipes 2 positioned at the center of the disc 1 are respectively connected with the vertically arranged heat absorption pipes 2 in the pipeline 3, and the two vertically arranged heat absorption pipes 2 are connected with each other in a sealing way through a small elbow to form a sealed heat absorption pipeline; before the sealing heat absorption pipeline is processed, the working medium 10 is filled after vacuumizing.
Wherein a plurality of baffle plates 9 are arranged in the pipeline 3; the inner diameter of the heat absorption pipe 2 is 2.15mm, and the outer diameter is 3.18mm; the disc 1 and the heat absorption pipes 2 are made of red copper, the diameter of the disc 1 is 500mm, and the radial length of each heat absorption pipe 2 on the disc 1 is 200mm; the length of the vertically arranged heat absorption tube 2 in the pipeline 3 is 35mm; the height of the part of the pipeline 3 passing through the disc 1 is 20mm, and the length of the rest pipeline 3 is 50mm; the top surface of the heat insulator 5 is glass, the bottom surface is a foam heat insulating layer, the heat absorbing coating 7 is a black chromium coating, and the filling volume of the working medium 10 is 70% of the volume of the heat absorbing pipe 2.
Example 3
As shown in fig. 1 to 6, the disc type solar collector based on thermal capillary force comprises a heat absorbing plate and a pipeline 3, wherein the heat absorbing plate comprises a disc 1, heat absorbing pipes 2, a heat insulating body 5, a heat absorbing coating 7 and bends 8, the heat insulating body 5 is arranged outside the disc 1, the heat absorbing coating 7 is arranged on the surface of the disc 1, the disc 1 is provided with a serpentine structure consisting of a plurality of heat absorbing pipes 2 and 12 bends 8, two heat absorbing pipes 2 which are distributed along the radial direction of the disc 1 in the serpentine structure are in closed connection through the bends 8, and the pipe orifice outlet of each heat absorbing pipe 2 is positioned at the center of the disc 1; the pipeline 3 passes through the center positions of the disc 1 and the heat insulator 5, a cold water outlet 6 is arranged at the top of the pipeline 3, a cold water inlet 4 is arranged at the bottom of the pipeline 3, a plurality of vertically arranged heat absorption pipes 2 are arranged in the pipeline 3, the pipe orifice outlets of every two heat absorption pipes 2 positioned at the center of the disc 1 are respectively connected with the vertically arranged heat absorption pipes 2 in the pipeline 3, and the two vertically arranged heat absorption pipes 2 are connected with each other in a sealing way through a small elbow to form a sealed heat absorption pipeline; before the sealing heat absorption pipeline is processed, the working medium 10 is filled after vacuumizing.
Wherein a plurality of baffle plates 9 are arranged in the pipeline 3; the inner diameter of the heat absorption pipe 2 is 2.15mm, and the outer diameter is 3.18mm; the disc 1 and the heat absorption pipes 2 are made of red copper, the diameter of the disc 1 is 1350mm, and the radial length of each heat absorption pipe 2 on the disc 1 is 500mm; the length of the heat absorption tube 2 vertically arranged in the pipeline 3 is 320mm; the height of the part of the pipeline 3 passing through the disc 1 is 40mm, and the length of the rest pipeline 3 is 380mm; the top surface of the heat insulator 5 is glass, the bottom surface is a foam heat insulating layer, the heat absorbing coating 7 is a black chromium coating, and the filling volume of the working medium 10 is 60% of the volume of the heat absorbing pipe 2.
Example 4
Referring to the structure of example 1, this example differs from example 1 in that the heat insulator 5 is not circular, and the heat insulator 5 is a 620×620 mm square.
While the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. A disc type solar heat collector based on thermal capillary force is characterized in that: the heat absorption plate comprises a disc (1), heat absorption pipes (2), heat insulators (5), heat absorption coatings (7) and elbows (8), wherein the heat insulators (5) are arranged outside the disc (1), the heat absorption coatings (7) are arranged on the surface of the disc (1), a serpentine structure formed by a plurality of the heat absorption pipes (2) and the elbows (8) is arranged on the disc (1), two heat absorption pipes (2) which are distributed along the radial direction of the disc (1) in the serpentine structure are in closed connection through the elbows (8), and the pipe orifice outlet of each heat absorption pipe (2) is positioned at the center of the disc (1); the pipeline (3) passes through the center positions of the disc (1) and the heat insulator (5), a cold water outlet (6) is formed in the top of the pipeline (3), a cold water inlet (4) is formed in the bottom of the pipeline (3), a plurality of vertically arranged heat absorption pipes (2) are arranged in the pipeline (3), the pipe orifice outlets of every two heat absorption pipes (2) positioned at the center of the disc (1) are respectively connected with the vertically arranged heat absorption pipes (2) in the pipeline (3), and the two vertically arranged heat absorption pipes (2) are connected with each other in a sealing manner through a small elbow to form a sealing heat absorption pipe; vacuumizing before processing the sealed heat absorption pipe, and then filling a working medium (10);
The diameter of the pipeline (3) is 50-70 mm, and a plurality of baffle plates (9) are arranged in the pipeline;
the inner diameter of the heat absorption tube (2) is smaller than 4mm.
2. The thermal capillary action based disc solar collector of claim 1, wherein: the circular disc (1) and the heat absorption pipes (2) are made of red copper, the diameter of the circular disc (1) is 500-1350 mm, and the radial length of each heat absorption pipe (2) on the circular disc (1) is more than 20 mm.
3. The thermal capillary action based disc solar collector of claim 1, wherein: the length of the vertically arranged heat absorption pipes (2) in the pipeline (3) is less than 2/3 of the radius of the disc (1).
4. The thermal capillary action based disc solar collector of claim 1, wherein: the height of the part of the pipeline (3) penetrating through the disc (1) is 20-50 mm, and the length of the rest pipeline (3) is 50-400 mm.
5. The thermal capillary action based disc solar collector of claim 1, wherein: the heat insulator (5) is high light-transmitting glass, covers the whole disc (1) and is vacuumized.
6. The thermal capillary action based disc solar collector of claim 1, wherein: the filling volume of the working medium (10) is 50-70% of the volume of the heat absorption tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415617.4A CN109556302B (en) | 2018-11-26 | 2018-11-26 | Disc type solar heat collector based on thermal capillary force effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415617.4A CN109556302B (en) | 2018-11-26 | 2018-11-26 | Disc type solar heat collector based on thermal capillary force effect |
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| Publication Number | Publication Date |
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| CN109556302A CN109556302A (en) | 2019-04-02 |
| CN109556302B true CN109556302B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811415617.4A Active CN109556302B (en) | 2018-11-26 | 2018-11-26 | Disc type solar heat collector based on thermal capillary force effect |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4315498A (en) * | 1979-04-13 | 1982-02-16 | Commissariat A L'energie Atomique | Solar collector |
| KR100932669B1 (en) * | 2009-04-29 | 2009-12-21 | 유제상 | Solar collector manufacturing method and the solar collector manufactured thereby |
| KR20120130813A (en) * | 2011-05-24 | 2012-12-04 | 주식회사 강남에너텍 | Solar receiver |
| CN108317747A (en) * | 2018-01-29 | 2018-07-24 | 海宁海光信息科技有限公司 | A kind of heat collector in solar water heating equipment |
| CN209605431U (en) * | 2018-11-26 | 2019-11-08 | 昆明理工大学 | A kind of disc type solar thermal collector based on the effect of hot capillary force |
-
2018
- 2018-11-26 CN CN201811415617.4A patent/CN109556302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4315498A (en) * | 1979-04-13 | 1982-02-16 | Commissariat A L'energie Atomique | Solar collector |
| KR100932669B1 (en) * | 2009-04-29 | 2009-12-21 | 유제상 | Solar collector manufacturing method and the solar collector manufactured thereby |
| KR20120130813A (en) * | 2011-05-24 | 2012-12-04 | 주식회사 강남에너텍 | Solar receiver |
| CN108317747A (en) * | 2018-01-29 | 2018-07-24 | 海宁海光信息科技有限公司 | A kind of heat collector in solar water heating equipment |
| CN209605431U (en) * | 2018-11-26 | 2019-11-08 | 昆明理工大学 | A kind of disc type solar thermal collector based on the effect of hot capillary force |
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| CN109556302A (en) | 2019-04-02 |
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Inventor after: He Yongqing Inventor after: Chen Yang Inventor after: Zhu Xiaoqin Inventor before: Chen Yang Inventor before: He Yongqing Inventor before: Zhu Xiaoqin |
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