CN208008495U - A kind of solar still - Google Patents
A kind of solar still Download PDFInfo
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- CN208008495U CN208008495U CN201721907683.4U CN201721907683U CN208008495U CN 208008495 U CN208008495 U CN 208008495U CN 201721907683 U CN201721907683 U CN 201721907683U CN 208008495 U CN208008495 U CN 208008495U
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- solar still
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 230000008033 biological extinction Effects 0.000 claims abstract description 38
- 238000001704 evaporation Methods 0.000 claims abstract description 37
- 230000008020 evaporation Effects 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 23
- 239000002355 dual-layer Substances 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 24
- 239000004020 conductor Substances 0.000 claims description 23
- 239000011148 porous material Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 3
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000013535 sea water Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000010612 desalination reaction Methods 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
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- 239000011229 interlayer Substances 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
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- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019658 bitter taste Nutrition 0.000 description 1
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- 230000005494 condensation Effects 0.000 description 1
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- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
Abstract
The utility model discloses a kind of solar still, the solar still is equipped with light and heat collection unit, automatic water distribution evaporation element, immediately heat exchange condensing unit and the additional hot cell of electricity；Petal type parabolic concentrator in the light and heat collection unit is along the circumferential direction fitted around in the dual-layer vacuum glass steel destilling tower surrounding as optically focused receiver；Extinction thermal-arrest conduit array in light and heat collection unit, automatic water distribution evaporation element, exchange heat immediately condensing unit and the additional hot cell of electricity are installed in dual-layer vacuum glass steel destilling tower.The solar still has light and heat collection at low cost, and floor space is small；Evaporation efficiency is high, and water yield is big；Specific heat capacity is small, and water outlet is fast；Heat leakage is small, and hot reuse is efficient, can round-the-clock production water, the advantages that energy conservation and environmental protection.
Description
Technical field
The utility model belongs to technical field of solar, specifically, being related to a kind of solar still.
Background technology
With the continuous getting worse increased with water pollution of population, shortage of water in sources and water quality water shortage increasingly jeopardize
The existence of the mankind.Sea water desalination is carried out using solar energy, it is not only resourceful, it is of low cost, and energy conservation and environmental protection, it is to solve water
The important measures of source property water shortage.
Currently, carrying out sea water desalination using solar energy, due to taking up a large area, the problems such as evaporation efficiency is low, not yet enter
The scale practical stage；With the fast development of membrane separation technique, sea water desalination is carried out using reverse osmosis membrane, has realized scale
Using the problems such as but reverse osmosis membrane materials are of high cost, easily block, and water outlet still has the bad mouthfeels such as bitterness still remains.
Solar still is the key that the development of solar energy purifier, and the prior art is with disc evaporator, solar pond etc.
Based on.Tower type solar evaporator is still in further research.
Utility model content
The purpose of this utility model is to provide a kind of solar stills, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions：
A kind of solar still, the solar still be equipped with light and heat collection unit, automatic water distribution evaporation element,
Immediately heat exchange condensing unit and the additional hot cell of electricity；Petal type parabolic concentrator in the light and heat collection unit is circumferentially square
To being fitted around in the dual-layer vacuum glass steel destilling tower surrounding as optically focused receiver；Extinction thermal-arrest in light and heat collection unit
Conduit array, automatic water distribution evaporation element, exchange heat immediately condensing unit and the additional hot cell of electricity are installed in dual-layer vacuum glass
In steel destilling tower.
As further program of the utility model：The light and heat collection unit is by petal type parabolic concentrator, bilayer
Vacuum glass steel destilling tower and outer layer extinction collection heat conductor and internal layer extinction collection heat conductor composition；The extinction thermal-arrest conduit array
It erects to be mounted in dual-layer vacuum glass steel destilling tower with internal layer extinction collection heat conductor and forms optically focused receiver；The petal type is thrown
Object plane condenser is along cylinder dual-layer vacuum glass steel destilling tower surrounding around uniformly distributed, formation optically focused hemisphere.
As the utility model further scheme：The extinction thermal-arrest conduit array selects the black nickel wire net of tubulose or net
Eye fabric surface coats one kind in black nickel powder body, and the internal layer extinction integrates heat conductor and coats infra-red china powder as mesh fabric
It is made.
As the utility model further scheme：The automatic water distribution evaporation element is by water distribution evaporation of carrier, siphon
Water distributing tray, temperature sensor, feed pump, frequency converter and control system composition；The water distribution evaporation of carrier selects surface area big, inhales
It is wet to dissipate the imitative manufactured yarn of moist good textile fabric or fabric；The siphon water distributing tray is molded at sieve-like by transparent grp
Molding, sieve pore are connected with extinction collection heat pipe, and in outer layer extinction collection heat conductor and internal layer extinction collection heat conductor, water distribution steams casing
It sends out carrier and passes through siphon water distribution pan bottom from sieve pore, be dispersed in siphon water distributing tray.
As the utility model further scheme：The instant heat exchange condensing unit is by feed pipe, water outlet casing, steaming
Vapour collects perforation casing, feed pump, vacuum pump, temperature sensor, pressure sensor, frequency converter and control software composition；It is described
The water supply pore in siphon water distributing tray is connected on feed pipe, and at double-layer vacuum destilling tower axle center, the feed pipe
It is pierced by from dual-layer vacuum glass steel distillation tower bottom, and is connected with external feed pump.
As the utility model further scheme：The additional hot cell of electricity is by far infrared electro-thermal tube, overheat automatic stop
Device and waterproof anticreeper composition；The far infrared electro-thermal tube is mounted between extinction collection heat pipe and water outlet casing.
Compared with prior art, the utility model has the beneficial effects that：
1, light and heat collection is efficient, at low cost
The utility model light and heat collection technology using double-layer vacuum transparent glass outer steel shell destilling tower as optically focused receiver,
Can large area, comprehensive reception concentrator optically focused, without concentrator tracking focus.Concentrator surrounds destilling tower solid optically focused, accounts for
Ground area is small, light gathering efficiency is high；Extinction thermal-arrest conduit array can be layered that substep is comprehensive to receive optically focused, caused by reducing light reflection
Photo-thermal loses, and can not only form black hole type light absorption, but also pass through tubulose mesh extinction collection heat pipe and water distribution evaporation of carrier
It is set with direct heat transfer, improves light-thermal conversion efficiency so that light and heat collection efficiency greatly improves, to reduce cost of investment
And operating cost.
2, evaporation efficiency is high, and water yield is big, and water outlet is fast
Water distribution evaporation technique provided by the utility model, using high surface area, the highly hygroscopic capillary for dissipating wet fibrous material
Tube effect is supplied water using automatic frequency-conversion, is determined confluent according to evaporation capacity, ultra-low volume balanced water supplement be may be implemented so that wait steaming
The hot specific volume for evaporating seawater or tap water is in minimum state, and disengagement area is big, thus evaporation efficiency is high, and water yield is big, water outlet
Soon.
3, heat leakage is small, and hot reuse is efficient
Instant condensing heat-exchange technology provided by the utility model, using negative pressure extraction, low pressure evaporation, pressure makes stream, makes steaming
Vapour four circumferential central steams out of destilling tower are collected perforated pipe and are collected, and the heat leakage of distillation shell is reduced.It, can under negative pressure state
Inception temperature of evaporation is set to reduce, steam condensation latent heat exchanges heat reuse immediately, and it is high that thermal energy repeats reclamation rate.
4, can round-the-clock production water, and prevent incrustation scale from generating
Solar still provided by the utility model is equipped with the additional thermal of far infrared column net irradiation electricity, not only can be with
The round-the-clock maintenance evaporator production water using the additional heat of electricity in the absence of sunlight, and the uniform transillumination shone using Far-infrared spoke,
The generation of incrustation scale is reduced, and prevents hot-spot.
5, Standardization instrument, complete set
The technical equipment of the utility model --- solar still is, it can be achieved that standardization, equipment, complete set so that
Occupation area of equipment is small, at low cost, and production is installed, using very convenient.
Description of the drawings
Fig. 1 is the structural schematic diagram of solar still；
Fig. 2 is the cross section schematic top plan view in Fig. 1；
Fig. 3 is the structural schematic diagram of the dual-layer vacuum glass steel destilling tower in the light and heat collection unit in Fig. 1；
Fig. 4 is the structural schematic diagram of the extinction collection heat pipe in the light and heat collection unit in Fig. 1；
Fig. 5 is the structural schematic diagram of the siphon water distributing tray in the water distribution evaporation element in Fig. 1.
In figure：1- petal type parabolic concentrators；2- dual-layer vacuum glass steel destilling towers；3- automatic siphon water distributing trays；4-
It is discharged casing；5- feed pipes；6- steam collects perforation casing；7- temperature sensors；8- pressure sensors；9- outer layer extinction thermal-arrests
Conductor；10- water distribution evaporation of carrier；11- internal layer extinction collection heat conductors；12- far infrared electro-thermal tubes；13- water inlets；14- feed pumps；
15- is discharged casing external thermal insulation；16- vacuum pumps；17- distilled water outlets；18- exhaust-valves；19- frequency converters；20- siphon water distributing trays
Water supply pore；21- siphon water distributor water distributing pores；22- zigzag effluent weirs；23- water distributing pores and extinction thermal-arrest catheter interface； 24-
Extinction thermal-arrest conductor mesh.
Specific implementation mode
The technical solution of the utility model is described in more detail With reference to embodiment.
- 5 are please referred to Fig.1, a kind of solar still, the solar still includes light and heat collection unit, automatically
Water distribution evaporation element, exchange heat condensing unit and the additional hot cell of electricity immediately.
The light and heat collection unit is by petal type parabolic concentrator 1, dual-layer vacuum glass steel destilling tower 2 and outer layer extinction
Collect heat conductor 9 and internal layer extinction collection heat conductor 11 forms；
The automatic water distribution evaporation element is by water distribution evaporation of carrier 10, siphon water distributing tray 3, temperature sensor 7, feed pump
14, frequency converter 19 and control software composition；
The instant heat exchange condensing unit collects perforation casing 6, feed pump 14, true by feed pipe 5, water outlet casing 4, steam
Sky pump 16, temperature sensor 7, pressure sensor 8, frequency converter 19 and control software composition；
The additional hot cell of electricity is made of far infrared electro-thermal tube 12, overheat automatic stop arrangement and waterproof anticreeper.
Petal type parabolic concentrator 1 in the light and heat collection unit is made of pintongs covering of the fan condenser, can be with per valve
It uniaxially overturns, when not working the solar still long period, the overturning of pintongs covering of the fan condenser 1 is protected from light, and covers bilayer
Vacuum glass steel destilling tower 2 prevents optically focused from overheating and damaging component；The collection area of condenser 1, height, by water consumption, institute
Locate the decisions such as region sunlight intensity.
The shell of dual-layer vacuum glass steel destilling tower 2 in the light and heat collection unit mainly differs 2- by two diameters
5 centimetres of transparent grp cylinder is set with to form interlayer, and rear closed, formation thermal insulation layer is vacuumized between interlayer.
Outer layer extinction collection heat conductor 9 in the light and heat collection unit is weaved by metal aluminum filament, the outer layer as shown in Figure 4
Extinction integrates heat conductor 9 as screen net structure, and outer layer extinction collects 9 surface of heat conductor and is coated with black nickel body；Memory extinction collection heat conductor 11
It is made of terylene mosquito netting coating last layer infrared ceramic powder and memory extinction integrates heat conductor 11 with acrylate etc. as adhesive.
Siphon water distributing tray 3 in the automatic water distribution evaporation element, the siphon water distributing tray 3 are molded into transparent grp
Type, the water distribution evaporation of carrier 10 in the automatic water distribution evaporation element are that the fiber crops or cotton of black are made using the alkali processing after stain that contracts
Fiber yarn.
Feed pipe 5, water outlet casing 4 and steam in the instant heat exchange condensing unit are collected perforation casing 6 and are all made of not
Become rusty steel pipe.
It is provided with quartz socket tube on far infrared electro-thermal tube 12 in the additional hot cell of electricity, avoids far infrared electro-thermal tube
12 electric leakages.
Two meters of 1 base diameter of the petal type parabolic concentrator, and it is 1.5 meters high；Dual-layer vacuum glass steel destilling tower 2 is straight
1 meter of diameter and 1.8 meters high.
The operation principle of the utility model is：As shown in Figure 1, seawater is pumped into feed pipe from water inlet 13, through feed pump 14
5, countercurrent flow is first carried out with water outlet casing 4, then carry out adverse current with steam collection perforation casing 6 and exchange heat again, the seawater after preheating
It flows into siphon water distributing tray 3 and absorbs water from feed pipe 5, it is uniformly distributed to extinction collection heat conductor 9,11 from water distributing pore 21 through capillarity
The optically focused and itself radiation exposed sunlight for absorbing condenser 1, are converted into thermal energy；Further on heating water distribution evaporation of carrier 11
Seawater, and it is allowed to rapid evaporation；The vapor of evaporation collects perforated pipe 4 and 5 countercurrent flow of feed pipe through steam, and steam condenses simultaneously
Evaporation latent heat is released, condensed distilled water is extracted with vacuum pump 16 from distilled water outlet 18 into access customer through being discharged casing 4
Water tank.
Feed pump 14 is through temperature sensor 7, frequency converter 19 and control software control.It is adapted therewith according to evaporation capacity offer
Confluent.The hot specific volume of seawater to be distilled is set to be in minimum state.
Vacuum pump 16 is controlled by pressure sensor 8 and control software, makes to maintain setting in vacuum glass steel destilling tower 2
Negative pressure state, enhancing mass and heat transfer, reduce inception temperature of evaporation.
Far infrared electro-thermal tube 12 in the additional hot cell of electricity is controlled by temperature sensor 7 and control software, is equipped with
Overheat automatic stop and leakage protection system.
The salt and impurity of 3 bottom of dual-layer vacuum glass steel destilling tower and the accumulation of 10 surface of water distribution evaporation of carrier are washed
It is discharged from exhaust-valve 15 after program washing.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of solar still, which is characterized in that the solar still is equipped with light and heat collection unit, automatic water distribution steams
Bill member, immediately heat exchange condensing unit and the additional hot cell of electricity；Petal type parabolic concentrator in the light and heat collection unit
It is along the circumferential direction fitted around in the dual-layer vacuum glass steel destilling tower surrounding as optically focused receiver；In light and heat collection unit
Extinction thermal-arrest conduit array, automatic water distribution evaporation element, exchange heat immediately condensing unit and the additional hot cell of electricity are installed in bilayer
In vacuum glass steel destilling tower.
2. a kind of solar still according to claim 1, which is characterized in that the light and heat collection unit is by petal type
Parabolic concentrator, dual-layer vacuum glass steel destilling tower and outer layer extinction collection heat conductor and internal layer extinction collection heat conductor composition；Institute
It states extinction thermal-arrest conduit array and internal layer extinction collection heat conductor is erect to be mounted in dual-layer vacuum glass steel destilling tower and forms optically focused
Receiver；The petal type parabolic concentrator, around being evenly distributed with, is formed poly- along cylinder dual-layer vacuum glass steel destilling tower surrounding
Light hemisphere.
3. a kind of solar still according to claim 2, which is characterized in that the extinction thermal-arrest conduit array is selected
The black nickel wire net of tubulose or mesh fabric surface coat one kind in black nickel powder body, and the internal layer extinction integrates heat conductor as mesh fabric
Coat infrared ceramic powder system at.
4. a kind of solar still according to claim 1, which is characterized in that the automatic water distribution evaporation element is by cloth
Water evaporation carrier, siphon water distributing tray, temperature sensor, feed pump, frequency converter and control system composition；The water distribution evaporation of carrier
Select surface area big, the imitative manufactured yarn of the good textile fabric of moisture absorption dissipates moist or fabric；The siphon water distributing tray at sieve-like, by
Transparent grp compression molding, sieve pore are connected with extinction collection heat pipe, and casing is in outer layer extinction collection heat conductor and internal layer extinction collection
In heat conductor, water distribution evaporation of carrier passes through siphon water distribution pan bottom from sieve pore, is dispersed in siphon water distributing tray.
5. a kind of solar still according to claim 1, which is characterized in that the instant heat exchange condensing unit is by giving
Water pipe, water outlet casing, steam collect perforation casing, feed pump, vacuum pump, temperature sensor, pressure sensor, frequency converter and control
Software composition processed；The water supply pore in siphon water distributing tray is connected on the feed pipe, and is mounted on double-layer vacuum destilling tower axis
At the heart, the feed pipe is pierced by from dual-layer vacuum glass steel distillation tower bottom, and is connected with external feed pump.
6. a kind of solar still according to claim 1, which is characterized in that the additional hot cell of electricity is by far infrared
Electrothermal tube, overheat automatic stop arrangement and waterproof anticreeper composition；The far infrared electro-thermal tube be mounted on extinction collection heat pipe and
It is discharged between casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721907683.4U CN208008495U (en) | 2017-12-29 | 2017-12-29 | A kind of solar still |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721907683.4U CN208008495U (en) | 2017-12-29 | 2017-12-29 | A kind of solar still |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208008495U true CN208008495U (en) | 2018-10-26 |
Family
ID=63881203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721907683.4U Active CN208008495U (en) | 2017-12-29 | 2017-12-29 | A kind of solar still |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208008495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282892A (en) * | 2022-08-04 | 2022-11-04 | 淮阴工学院 | Preparation method of sandwich type long-acting salt-resistant gel photothermal evaporator |
| CN115571943A (en) * | 2022-04-24 | 2023-01-06 | 北京绿佳杰园林工程有限公司 | Landscape's rainwater recovery processing device |
-
2017
- 2017-12-29 CN CN201721907683.4U patent/CN208008495U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115571943A (en) * | 2022-04-24 | 2023-01-06 | 北京绿佳杰园林工程有限公司 | Landscape's rainwater recovery processing device |
| CN115282892A (en) * | 2022-08-04 | 2022-11-04 | 淮阴工学院 | Preparation method of sandwich type long-acting salt-resistant gel photothermal evaporator |
| CN115282892B (en) * | 2022-08-04 | 2023-09-29 | 淮阴工学院 | Preparation method of sandwich type long-acting salt-resistant gel photo-thermal evaporator |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231115 Address after: No.42, Dabu Road, Huadu District, Guangzhou, Guangdong 510000 Patentee after: Guangzhou Hanhua Investment Partnership (L.P.) Address before: No. 6, 1-103 Zhizhi Road, Hongshan District, Wuhan City, Hubei Province, 430000 Patentee before: Zeng Qingfu |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240122 Address after: 510000 No. 42, Dabu Road, Xiuquan street, Huadu District, Guangzhou, Guangdong Patentee after: Guangzhou Yidong Technology Co.,Ltd. Country or region after: China Address before: No.42, Dabu Road, Huadu District, Guangzhou, Guangdong 510000 Patentee before: Guangzhou Hanhua Investment Partnership (L.P.) Country or region before: China |