CN108692479A - A kind of enclosed spray cooling system using solar refrigeration - Google Patents
A kind of enclosed spray cooling system using solar refrigeration Download PDFInfo
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- CN108692479A CN108692479A CN201710119556.6A CN201710119556A CN108692479A CN 108692479 A CN108692479 A CN 108692479A CN 201710119556 A CN201710119556 A CN 201710119556A CN 108692479 A CN108692479 A CN 108692479A
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- outlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
-
- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
A kind of enclosed spray cooling system using solar refrigeration belongs to high efficient heat exchanging field.The main object of the present invention is to provide a kind of solution of the high heat flux density heat dissipation problem for electronic equipment surface, industrial cutting surfaces and facet surface.Include mainly:Solar energy heating plate (1), hot water regulating valve (2), generator (3), solution pump (4), solution shut-off valve (5), absorber (6), heat-exchanger pump (7), first shut-off valve (8), forecooler (9), condenser (10), filter (11), regulating valve of spraying (12), second shut-off valve (13), flowmeter (14), spray chamber (15), nozzle (16), surface (17) to be cooled, third shut-off valve (18).The present invention provides power using solar energy absorption type refrigeration mode for spray cooling system, and using water as misting cooling medium, system nebulization efficiency is high, safe, is suitable for solving the heat dissipation problem on various high heat flux density surfaces.
Description
Technical field
The present invention relates to a kind of enclosed spray cooling systems using solar refrigeration, belong to high efficient heat exchanging field.
Background technology
With the development of science and technology electronic equipment more and more also seems more to micromation and integrated development, heat dissipation problem
Exacerbation is wanted.If not adopting an effective measure reduces electronic equipment surface temperature, gently if substantially reduce its working efficiency, it is heavy then burn
Electronic device.In addition, application of the laser in fields such as medical operating, industry is also further extensive, it must be right after laser transmitting
Surface is cooled down, and is reduced heat and is dissipated, so as to lasting use.Conventional air-cooled and water-cooling pattern exchange capability of heat has reached pole
Limit, cannot be satisfied the radiating requirements of increasing electronic equipment and laser.
Misting cooling is will to cool down medium to be decomposed into countless discrete type droplets by atomization, is sprayed onto heating surface
A kind of novel cooling manner that heat is taken away by single-phase heat exchange and two-phase heat exchange, the advantage is that:Smaller surface temperature difference;Not yet
There is boiling hysteresis quality;Good heat exchange property;Uniform cooling wall temperature can be achieved;Working medium demand is small.Misting cooling skill
Art has very strong application prospect in above-mentioned cooling field.
In recent years, have relevant programme for the practical application of misting cooling to be suggested, such as patent
A kind of misting cooling loop apparatus based on microgravity environment that ZL201110446869.5 is proposed, but the flow system flow is smaller,
Microelectronic device, and the complicated easily blocking of capillary wick pipeline structure are may be only available for, system performance is influenced.Patent
A kind of free-standing two phase flow spray cooling system and its Spray Way that ZL201410350139.9 is proposed, but this method makes
Use high-pressure carbon dioxide as power source, it is excessive to the consumption of carbon dioxide, and spraying can not to the carbon dioxide after heating surface
Recycling can lead to greenhouse effects in escape to environment.Patent ZL201510072716.7 proposes a kind of based on air expansion system
The cooling system of cold airborne heater element is mainly characterized by using turbine as refrigeration device and power source, program installation
And use is restricted greatly, is not suitable for remaining industry and medical applications in addition to airborne cooling.Misting cooling input is real
Border is in application, must take into account lasting spraying, system encapsulation matching and the problem of energy conservation and environmental protection, to ensure what systems stay was stablized
Operation.Water is that a kind of latent heat is very big, is easily recycled, nontoxic cooling medium, is situated between relative to carbon dioxide and refrigerant class
The matter scope of application is wider, selects a kind of suitable endless form that can come into operation in industry and medical field.Solar energy system
Cold is a kind of energy-saving and environment-friendly refrigerating method, and misting cooling can be saved by carrying out front and back processing to misting cooling medium using this method
Drive energy, substantially increase the practicability of spray cooling system.
Invention content
The object of the present invention is to provide a kind of enclosed spray cooling systems using solar refrigeration.
The system is mainly cut by solar energy heating plate (1), hot water regulating valve (2), generator (3), solution pump (4), solution
Only valve (5), absorber (6), heat-exchanger pump (7), the first shut-off valve (8), forecooler (9), condenser (10), filter (11), spray
Mist regulating valve (12), the second shut-off valve (13), flowmeter (14), spray chamber (15), nozzle (16), surface to be cooled (17),
Three shut-off valves (18) form.
It is made of solar refrigeration system and spray cooling system using the enclosed spray cooling system of solar refrigeration.
Wherein solar refrigeration system is by solar energy heating plate (1), hot water regulating valve (2), generator (3), solution pump
(4), solution shut-off valve (5), absorber (6), heat-exchanger pump (7) composition.
Generator (3) has two entrances and three outlets, and first entrance is hot water inlet, and first outlet goes out for hot water
Mouthful, second entrance is lithium bromide water solution entrance, and second outlet exports for lithium bromide water solution, and third outlet goes out for vapor
Mouthful;It is lithium bromide water solution entrance that absorber (6), which has two entrances and one outlet, first entrance, and first outlet is bromination
Lithium aqueous solution outlet, second entrance are steam entry.
Wherein the outlet of solar energy heating plate (1) is connected with one end of hot water regulating valve (2), hot water regulating valve (2) it is another
One end is connected with the first entrance of generator (3), and the first outlet of generator (3) is connected with one end of heat-exchanger pump (7), heat-exchanger pump
(7) the other end is connected with the entrance of solar energy heating plate (1).
The second outlet of generator (3) is connected with one end of solution shut-off valve (5), the other end of solution shut-off valve (5) with
The first entrance of absorber (6) is connected.The first outlet of absorber (6) is connected with the entrance of solution pump (4), solution pump (4)
Outlet is connected with the second entrance of generator (3).
Above-mentioned spray cooling system is by the first shut-off valve (8), forecooler (9), condenser (10), filter (11), spraying
Regulating valve (12), the second shut-off valve (13), flowmeter (14), spray chamber (15), nozzle (16), surface to be cooled (17), third
Shut-off valve (18) forms.
For forecooler (9) there are two entrance and two outlets, first entrance is steam entry, and second entrance is that spraying is completed
Water inlet afterwards, first outlet are steam outlet, and second outlet is the water out after the completion of spraying;There are two condensers (10)
Entrance and two outlets, first entrance are steam entry, and second entrance is cooling medium inlet, and first outlet is condensed
Water out, second outlet are cooling media outlet.
Generator (3) third outlet is connected with the entrance of the first shut-off valve (8), the outlet of the first shut-off valve (8) and in advance
The first entrance of cooler (9) is connected, and the first outlet of forecooler (9) is connected with the first entrance of condenser (10), condenser
(10) first outlet is connected with the entrance of filter (11), the entrance phase of the outlet and spraying regulating valve (12) of filter (11)
Even, the outlet of spraying regulating valve (12) is connected with the entrance of the second shut-off valve (13), the outlet of the second shut-off valve (13) and flow
The entrance for counting (14) is connected, and the outlet of flowmeter (14) is connected with nozzle (16).Condensed water is through nozzle (16) atomized spray
In on surface to be cooled (17).Nozzle (16) and surface to be cooled (17) are all closed in spray chamber (15).Spray chamber (15)
Outlet is connected with the entrance of third shut-off valve (18), and the outlet of third shut-off valve (18) is connected with the second entrance of forecooler (9),
The second outlet of forecooler (9) is connected with the second entrance of absorber (6).
When system operation, solar energy heating plate stores water in (1), when solar energy heating plate (1) is by solar radiation,
In coolant-temperature gage increase.It is driven through heat-exchanger pump (7), hot water flows into generator (3);It is water-soluble that lithium bromide is stored in generator (3)
Liquid, the vapor after exchanging heat with hot water in lithium bromide water solution escape, and the third outlet through generator (3) flows into refrigeration system.
Solution concentration becomes larger in generator (3) at this time, is driven through solution pump (4), inflow absorber (6).Concentrated solution in absorber (6)
The moisture in forecooler (9) second outlet is absorbed, becomes weak solution again, is driven through solution pump (4) and flows into generator (3) again
Cycle.While the hot water stream for the completion that exchanges heat goes out generator (3), drives inflow solar energy heating plate (1) to add again through heat-exchanger pump (7)
Heat.
The vapor of the third outlet outflow of generator (3) flows into forecooler (9) through the first shut-off valve (8), in forecooler
(9) heat exchange is carried out with the water after the completion of spraying in, subsequently enters after condenser (10) continues cool to assigned temperature, passes through
Filter (11) filters out impurities in water, and flow is adjusted to designated value by regulating valve (12).Subsequent water passes through the second shut-off valve (13)
With flowmeter (14) flow nozzle (16).After nozzle (16) makes water fogging, sprays to surface to be cooled (17), reduce table to be cooled
Face temperature.It completes the water after spraying and flows into forecooler (9) through third shut-off valve (18), absorb the vapor that generator (3) flows out
Heat after inflow absorber (6) absorbed by lithium bromide concentrated solution therein.
Nozzle (16) and face to be cooled (17) are enclosed in spray chamber (15) so that the water after the completion of spraying can be along
Three shut-off valves (18) flow into forecooler (9), reach the cooling medium of saving and energy-efficient effect.Condenser (10) can be used but not only
It is limited to water, phase-change material, cryogenic media as low-temperature receiver.
Description of the drawings
Fig. 1 is the principle of the present invention figure.;
Label title in attached drawing 1:1. solar energy heating plate, 2. hot water regulating valves, 3. generators, 4. solution pumps, 5. molten
Liquid shut-off valve, 6. absorbers, 7. heat-exchanger pumps, 8. first shut-off valves, 9. forecoolers, 10. condensers, 11. filters, 12. sprayings
Regulating valve, 13. second shut-off valves, 14. flowmeters, 15. spray chambers, 16. nozzles, 17. surfaces to be cooled, 18. third shut-off valves.
Specific implementation mode
As shown in Figure 1, a kind of enclosed spray cooling system using solar refrigeration mainly include solar energy heating plate 1,
Hot water regulating valve 2, generator 3, solution pump 4, solution shut-off valve 5, absorber 6, heat-exchanger pump 7, the first shut-off valve 8, forecooler 9,
Condenser 10, filter 11, spraying regulating valve 12, the second shut-off valve 13, flowmeter 14, spray chamber 15, nozzle 16, table to be cooled
Face 17, third shut-off valve 18.
When the hot water in solar energy heating plate 1 reaches certain temperature, solution pump 4, solution shut-off valve 5 and heat-exchanger pump are opened
7 so that the hot water in solar energy heating plate 1 flows into generator 3 and exchanges heat with lithium bromide water solution therein, the heat after the completion of heating
Water is back to through heat-exchanger pump 7 in solar energy heating plate 1, reuptakes solar heat heating.
After lithium bromide water solution in generator 3 is heated, vapor therein flows into forecooler through the first shut-off valve 8.Hair
Solution concentration in raw device 3 becomes larger, and concentrated solution is through 5 inflow absorber 6 of solution shut-off valve.In absorber 6, concentrated solution absorbs spray
Water after the completion of mist cooling, concentration become smaller, are reheated through 4 inflow absorber 3 of solution pump.
The first shut-off valve 8, the second shut-off valve 13 and third shut-off valve 18 are opened, the vapor in generator 3 flows into precooling
Device 9 and the cooling of condenser 10 condensation are atomized after spraying regulating valve 12 adjusts flow by nozzle 16, to assigned temperature after atomization
Drop is sprayed to surface 17 to be cooled.Drop collects for flow after reducing the temperature on surface 17, is flowed into through third shut-off valve 18 pre-
Cooler 9, the vapor to be flowed out in generator 3 serve as pre- low-temperature receiver.The high temperature water flow of outflow forecooler 9 is absorbed by absorber 6, complete
At this nebulisation cycle.
By 12 adjustable spraying flow of regulating valve of spraying, adjusting numerical value can be obtained by the observation of flowmeter 14.
In actual use, surface 17 to be cooled and nozzle 16 being encapsulated in spray chamber 15 so that water can recycle,
Cooling medium is saved.When system operation, the extraneous low-temperature receiver of condenser 10 can be that cooling water, phase-change material or remaining low temperature are situated between
Matter.
Misting cooling and solar refrigeration system are coupled by this system, and providing one kind, to be applicable to electronic equipment cold
But, medical treatment, steel cutting etc. need the practical misting cooling scheme in the field of misting cooling, are that the surface in each field is efficiently cold
One safe and efficient platform is but provided.
Claims (4)
1. a kind of enclosed spray cooling system using solar refrigeration, it is characterised in that:By solar refrigeration system and spraying
Cooling system forms;
Above-mentioned solar refrigeration system is by solar energy heating plate (1), hot water regulating valve (2), generator (3), solution pump (4), molten
Liquid shut-off valve (5), absorber (6), heat-exchanger pump (7) composition.
Generator (3) has two entrances and three outlets, and first entrance is hot water inlet, and first outlet is hot water outlet, the
Two entrances are lithium bromide water solution entrance, and second outlet exports for lithium bromide water solution, and third outlet is steam outlet;
It is lithium bromide water solution entrance that absorber (6), which has two entrances and one outlet, first entrance, and first outlet is bromination
Lithium aqueous solution outlet, second entrance are steam entry;
Wherein the outlet of solar energy heating plate (1) is connected with one end of hot water regulating valve (2), the other end of hot water regulating valve (2)
It is connected with the first entrance of generator (3), the first outlet of generator (3) is connected with one end of heat-exchanger pump (7), heat-exchanger pump (7)
The other end be connected with the entrance of solar energy heating plate (1).
The second outlet of generator (3) is connected with one end of solution shut-off valve (5), the other end of solution shut-off valve (5) and absorption
The first entrance of device (6) is connected.The first outlet of absorber (6) is connected with the entrance of solution pump (4), the outlet of solution pump (4)
It is connected with the second entrance of generator (3).
Above-mentioned spray cooling system is adjusted by the first shut-off valve (8), forecooler (9), condenser (10), filter (11), spraying
Valve (12), the second shut-off valve (13), flowmeter (14), spray chamber (15), nozzle (16), surface to be cooled (17), third cut-off
Valve (18) forms.
For forecooler (9) there are two entrance and two outlets, first entrance is steam entry, and second entrance is after the completion of spraying
Water inlet, first outlet are steam outlet, and second outlet is the water out after the completion of spraying.
For condenser (10) there are two entrance and two outlets, first entrance is steam entry, and second entrance is that cooling medium enters
Mouthful, first outlet is condensed water out, and second outlet is cooling media outlet.
The third outlet of generator (3) is connected with the entrance of the first shut-off valve (8), the outlet of the first shut-off valve (8) and forecooler
(9) first entrance is connected, and the first outlet of forecooler (9) is connected with the first entrance of condenser (10), condenser (10)
First outlet is connected with the entrance of filter (11), and the outlet of filter (11) is connected with the entrance of spraying regulating valve (12), sprays
The outlet of mist regulating valve (12) is connected with the entrance of the second shut-off valve (13), outlet and the flowmeter (14) of the second shut-off valve (13)
Entrance be connected, the outlet of flowmeter (14) is connected with nozzle (16).Condensed water is cold in waiting for through nozzle (16) atomized spray
But on surface (17).Nozzle (16) and surface to be cooled (17) are all closed in spray chamber (15).The outlet of spray chamber (15) with
The entrance of third shut-off valve (18) is connected, and the outlet of third shut-off valve (18) is connected with the second entrance of forecooler (9), forecooler
(9) second outlet is connected with the second entrance of absorber (6).
2. a kind of enclosed spray cooling system using solar refrigeration according to claim 1, it is characterised in that including
Following procedure:
When system operation, solar energy heating plate stores water in (1), therein when solar energy heating plate (1) is by solar radiation
Coolant-temperature gage increases.It is driven through heat-exchanger pump (7), hot water flows into generator (3);Generator stores lithium bromide water solution in (3), warp
Vapor effusion after hot water heating in lithium bromide water solution, the third outlet through generator (3) flow into refrigeration system.It sends out at this time
Solution concentration becomes larger in raw device (3), is driven through solution pump (4), inflow absorber (6).Concentrated solution in absorber (6) absorbs pre-
Moisture in cooler (9) second outlet, becomes weak solution again, is driven through solution pump (4) and flows into generator (3) re-circulation.
While the hot water stream for the completion that exchanges heat goes out generator (3), drives inflow solar energy heating plate (1) to reheat through heat-exchanger pump (7).
The vapor of the third outlet outflow of generator (3) flows into forecooler (9) through the first shut-off valve (8), in forecooler (9)
Heat exchange is carried out with the water after the completion of spraying, is subsequently entered after condenser (10) continues cool to assigned temperature, through filter
(11) impurities in water is filtered out, flow is adjusted to designated value by regulating valve (12).Subsequent water is by the second shut-off valve (13) and stream
Gauge (14) flow nozzle (16).After nozzle (16) makes water fogging, sprays to surface to be cooled (17), reduce surface temperature to be cooled
Degree.It completes the water after spraying and flows into forecooler (9) through third shut-off valve (18), absorb the heat for the vapor that generator (3) flows out
Inflow absorber (6) is absorbed by lithium bromide concentrated solution therein after amount.
3. a kind of enclosed spray cooling system using solar refrigeration according to claim 1, it is characterised in that:It will spray
Mouth (16) and face to be cooled (17) are enclosed in spray chamber (15) so that the water after the completion of spraying can be along third shut-off valve (18)
Forecooler (9) is flowed into, the cooling medium of saving and energy-efficient effect are reached.
4. a kind of enclosed spray cooling system using solar refrigeration according to claim 1, it is characterised in that:It is described
Condenser (10) can be used but be not limited only to water, phase-change material, cryogenic media as low-temperature receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119556.6A CN108692479A (en) | 2017-02-24 | 2017-02-24 | A kind of enclosed spray cooling system using solar refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710119556.6A CN108692479A (en) | 2017-02-24 | 2017-02-24 | A kind of enclosed spray cooling system using solar refrigeration |
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| Publication Number | Publication Date |
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| CN108692479A true CN108692479A (en) | 2018-10-23 |
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| CN201710119556.6A Pending CN108692479A (en) | 2017-02-24 | 2017-02-24 | A kind of enclosed spray cooling system using solar refrigeration |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000027253A (en) * | 1998-10-27 | 2000-05-15 | 황한규 | Apparatus for spraying solution/coolant of absorptive cool and hot water dispenser |
| US20100175395A1 (en) * | 2009-01-09 | 2010-07-15 | Donald Charles Erickson | Hybrid spray absorber |
| CN102344179A (en) * | 2011-09-29 | 2012-02-08 | 中国科学院广州能源研究所 | Solar absorption type sea water desalination device with regenerative cycle |
| CN203533960U (en) * | 2013-08-30 | 2014-04-09 | 广州科创节能科技服务有限公司 | Solar absorption refrigeration system |
| CN204963288U (en) * | 2015-09-17 | 2016-01-13 | 河北工程大学 | Use lithium bromide absorption formula at solar energy and water source to heat, refrigerating plant |
-
2017
- 2017-02-24 CN CN201710119556.6A patent/CN108692479A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000027253A (en) * | 1998-10-27 | 2000-05-15 | 황한규 | Apparatus for spraying solution/coolant of absorptive cool and hot water dispenser |
| US20100175395A1 (en) * | 2009-01-09 | 2010-07-15 | Donald Charles Erickson | Hybrid spray absorber |
| CN102344179A (en) * | 2011-09-29 | 2012-02-08 | 中国科学院广州能源研究所 | Solar absorption type sea water desalination device with regenerative cycle |
| CN203533960U (en) * | 2013-08-30 | 2014-04-09 | 广州科创节能科技服务有限公司 | Solar absorption refrigeration system |
| CN204963288U (en) * | 2015-09-17 | 2016-01-13 | 河北工程大学 | Use lithium bromide absorption formula at solar energy and water source to heat, refrigerating plant |
Non-Patent Citations (1)
| Title |
|---|
| S.T. CHEN等: "An experimental comparison of heat transfer characteristic between R134-a and R22 in spray cooling", 《EXPERIMENTAL THERMAL AND FLUID SCIENCE》 * |
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Application publication date: 20181023 |