CN110094962B - Gas pump type drying device - Google Patents
Gas pump type drying device Download PDFInfo
- Publication number
- CN110094962B CN110094962B CN201910101647.6A CN201910101647A CN110094962B CN 110094962 B CN110094962 B CN 110094962B CN 201910101647 A CN201910101647 A CN 201910101647A CN 110094962 B CN110094962 B CN 110094962B
- Authority
- CN
- China
- Prior art keywords
- solution
- dehumidifier
- heater
- regenerator
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001035 drying Methods 0.000 title claims abstract description 40
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 239000003546 flue gas Substances 0.000 claims description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 6
- 238000007791 dehumidification Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- -1 seeds Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/06—Air heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
Abstract
The invention discloses a gas pump type drying device, which comprises a dehumidifier, a condenser and a drying chamber, wherein the dehumidifier, the condenser and the drying chamber sequentially form a loop through pipelines; the pipeline of one end of the drying chamber close to the condenser is an air supply pipe, and the pipeline of the other end is an exhaust pipe and a return air pipe; the port of the exhaust pipe is communicated with the outside for exhausting, the middle section of the exhaust pipe is communicated with the return pipe, the return pipe is provided with an outside air inlet, and the dry air in the return pipe and the outside air are mixed and enter the dehumidifier. The device utilizes the internal combustion engine to drive the heat pump to circulate, and the residual heat of the internal combustion engine is utilized, so that the wide-range change of the drying temperature can be realized, and the defect of narrow adjustment range of the drying temperature of the current heat pump is overcome.
Description
Technical Field
The invention belongs to the technical field of heat pump devices, and particularly relates to a gas pump type drying device.
Technical Field
The heat pump device has the advantages of energy conservation, safety, environmental protection and the like. With increasing importance of energy conservation and environmental protection, the heat pump drying device is applied to drying materials such as seeds, wood or medicinal materials. However, the drying temperature is usually about 50 ℃, and other materials such as fish slices and the like need to be dried at a higher temperature.
The heating mode is usually steam heating, fuel heating or multi-group compressor heat pump drying. These conventional heat pumps have low energy utilization for drying. Therefore, a gas-fired heat pump drying device is required to meet the demand.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the gas pump type drying device, which realizes wide-range temperature drying and fully utilizes energy sources to generate environmental protection benefits.
The technical scheme of the invention is as follows: a gas pump type drying device comprises a dehumidifier, a condenser and a drying chamber which sequentially form a loop through pipelines; the pipeline of one end of the drying chamber, which is close to the condenser, is an air supply pipe, and the pipeline of the other end is an exhaust pipe and a return air pipe; the port of the exhaust pipe is communicated with the outside for exhausting, the middle section of the exhaust pipe is communicated with the return air pipe, an outside air inlet is formed in the return air pipe, and dry air in the return air pipe and outside air are mixed and enter the dehumidifier.
Further, the air supply pipe is provided with an air feeder; the exhaust pipe is provided with an exhaust fan.
Still further, the system also comprises a throttle valve, an evaporator and a compressor; the condenser is sequentially connected with the throttle valve, the evaporator and the compressor to form a loop to form a heat pump system.
Further, the system also comprises an internal combustion engine and a flue gas heating pump; one end of the internal combustion engine is connected with the compressor, and the other end of the internal combustion engine is connected with the flue gas heating pump; a first flue gas outlet is arranged on the flue gas heating pump; a second smoke outlet is arranged between the internal combustion engine and the smoke heating pump.
Further, a branch for adjusting the temperature is arranged on the blast pipe in parallel with the blast pipe, and a secondary heater is arranged on the branch; the secondary heater flue gas heating pump is connected to form a loop, and a water pump P5 is arranged on the loop
Further, the device also comprises a heat exchanger, a solution regenerator, a high-temperature heat exchanger and a heat exchanger; the heat exchanger is arranged between the dehumidifier and the solution regenerator to form a loop, one end of the high-temperature heat exchanger is connected with the solution regenerator, and the other end of the high-temperature heat exchanger is connected with the internal combustion engine; one end of the heat exchanger is connected with the dehumidifier, and the other end of the heat exchanger is connected with the evaporator.
Further, a dehumidifying solution pump is arranged between the dehumidifier and the heat exchanger; a regenerated solution pump is arranged in front of the solution regenerator and the high-temperature heat exchanger; a solution heating pump is arranged between the high-temperature heater and the internal combustion engine; and a solution cooling pump is arranged between the heat exchanger and the evaporator.
Still further, the device also comprises a regenerator nozzle and a dehumidifier nozzle, wherein the regenerator nozzle is connected with the high-temperature heat exchanger and is arranged above the inside of the solution regenerator; the dehumidifier nozzle and the heat exchanger are both arranged above the interior of the dehumidifier.
The beneficial effects are that:
the gas pump type drying device has the advantages that: first, the evaporator does not frost and can be used for low ambient temperature drying. And secondly, three-stage treatment is adopted for the air, so that the drying temperature can be changed in a wide range, and the drying requirements of various materials are met. And finally, the internal combustion engine uses natural gas, and the generated smoke is recycled, so that the rate and the utilization rate of the natural gas are improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
reference numerals:
f1-forced draught blower, F2-exhaust fan, A1-outside air, P1-dehumidification solution pump, P2-regeneration solution pump, P3-solution heat pump, P4-solution cooling pump, A2-primary mixed air, A3-primary drying air, A4-primary heating air, A5-secondary heating air, A6-secondary mixed air, B1-exhaust air, B2-return air, 1-split air, 2-secondary heating air, 3-secondary heater, 4-flue gas heater, 5-internal combustion engine, 6-compressor, 7-condenser, 8-throttle valve, 9-evaporator, 10-cylinder jacket heat exchanger, 11-solution heater B, 12-solution regenerator, 13-regenerator nozzle, 14-regenerator, 15-solution cooler, 16-dehumidifier nozzle, 17-dehumidifier, 18-supply line, 19-exhaust line, 20-return line.
The specific embodiment is as follows:
the present invention is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the invention and not limiting of its scope, and various modifications of the invention, which are equivalent to those skilled in the art upon reading the invention, will fall within the scope of the invention as defined in the appended claims.
As shown in fig. 1. A gas pump type drying device comprises a dehumidifier 17, a condenser 7 and a drying chamber which sequentially form a loop through pipelines; the pipeline of one end of the drying chamber close to the condenser is an air supply pipe 18, and the pipeline of the other end is an exhaust pipe 19 and an air return pipe 20; the port of the exhaust pipe 19 is communicated with the outside for exhausting, the middle section is communicated with the return air pipe 20, an outside air inlet is arranged on the return air pipe 20, and the dry air in the return air pipe 20 and the outside air are mixed and enter the dehumidifier 17. The air supply pipe 18 is provided with an air supply fan 1; the exhaust pipe 19 is provided with an exhaust fan B2.
Also comprises a throttle valve 8, an evaporator 9 and a compressor 10; the condenser 7 is connected with a throttle valve 8, an evaporator 9 and a compressor 10 in turn to form a loop to form a heat pump system.
Also comprises an internal combustion engine 5 and a flue gas heating pump 4; one end of the internal combustion engine 5 is connected with the compressor 10, and the other end is connected with the flue gas heating pump 4; the flue gas heating pump 4 is provided with a first flue gas outlet; a second smoke outlet is arranged between the internal combustion engine 5 and the smoke heating pump 4.
The blast pipe 18 is provided with a branch which is parallel to the blast pipe and used for adjusting the temperature, and the branch is provided with a secondary heater 3; the secondary heater 3 and the flue gas heater 4 are connected to form a loop, and a water pump P5 is arranged on the loop.
Further comprises a regenerator 14, a solution regenerator 12, a solution heater 11 and a solution cooler 15; the regenerator 14 is arranged between the dehumidifier and the solution regenerator 12 to form a loop, one end of the solution heater 11 is connected with the solution regenerator 12, and the other end is connected with the internal combustion engine; one end of the solution cooler 15 is connected to the dehumidifier 17, and the other end is connected to the evaporator 9.
A solution pump P1 is arranged between the dehumidifier 17 and the regenerator 14; the solution regenerator 12 and the solution heater 11 are provided with a solution pump P2 in front; a solution pump P3 is arranged between the solution heater 11 and the internal combustion engine 5; a solution pump P4 is provided between the solution cooler 15 and the evaporator 9.
The device also comprises a regenerator nozzle 12 and a dehumidifier nozzle 16, wherein the regenerator nozzle 12 is connected with the solution heater 11 and is arranged above the inside of the solution regenerator 12; the dehumidifier nozzle 16 and the solution cooler 15 are disposed above the interior of the dehumidifier 16.
The device comprises a drying system, a solution circulating system, a heat pump system and a flue gas waste heat utilization system.
The operation process of the drying system is as follows: the air supply pipe 18 feeds dry air into the drying chamber by the fan F1, exhaust air is pumped out by the exhaust fan F2, one part of the exhaust air is discharged into outside air, the other part of the exhaust air is mixed with outside air A1 by the return air pipe 20, the temperature is slightly raised after the exhaust air passes through the dehumidifier 17 and becomes dry air A3, the air is heated by the condenser 7 and becomes A4, one part of the air A4 is split according to the required temperature in the drying chamber, the other part of the air is heated by the secondary heater 3 and then mixed into A6, and the A6 is sucked by the fan F1.
The dehumidifier 17 is a part of a solution circulation system, and the solution circulation system is composed of the dehumidifier 17, the regenerator 12, the heat exchanger 14, the heater 11, the cooler 15, the dehumidification pump P1 and the regenerated solution pump P2. The concentrated solution pumped by the solution pump P1 is cooled between the solution cooler 15 and the evaporator 9 through the refrigerating agent pump P4, then the cold concentrated solution is sprayed into the dehumidifier 17 by the spray head 16, the moisture of the air flowing through the cold concentrated solution is absorbed by the solution, the concentration of the solution is reduced, the temperature is increased, the air is discharged from the lower part and enters the regenerator 14, the dilute solution obtained from the regenerator 12 is cooled, the dilute solution is heated by the concentrated solution, the air enters the regenerator 11, the dilute solution is pumped into the solution heater 11 by the solution pump P2, the heat carrier water is driven by the P3 to circulate between the cylinder sleeve heater 10 and the solution heater 11, the heating of the dilute solution is completed, then the spray head 13 sprays the warmed dilute solution into the regenerator 12, the moisture contained in the solution is absorbed by the air flowing through the filling, the concentration of the dilute solution is reduced, the solution is thickened, and then flows into the regenerator 14 for the dehumidification of the mixed air again.
The heat pump system consists of a compressor 6, a condenser 7, a throttle valve 8 and an evaporator 9, wherein the compressor 6 is directly driven by a gas internal combustion engine 5, and the heat pump directly dehumidifies and releases heat from solution to absorb heat and indirectly comprises cooling and releasing heat of a cylinder sleeve. The fuel gas is connected with a fuel gas pipeline.
The working process of the flue gas waste heat utilization system is as follows: the flue gas is directly discharged by the internal combustion engine 5. The flue gas heater 4 heats the heat carrier, which heats the air in the secondary air heater 3.
The evaporator can not be frosted, and is suitable for drying at low ambient temperature. Heat pump drying is usually performed by using an evaporator to absorb heat from the environment, and the evaporator is used for cooling a dehumidifying solution, so that frosting does not occur.
The drying temperature can vary widely. The three-stage treatment is adopted to the air, the first stage is a dehumidification technology, the temperature of the air is increased, the humidity is reduced, but if the temperature of the evaporator is regulated, the air can be cooled in the dehumidifier, the humidity can be regulated, and the cooling capacity of the solution cooler 15 is regulated mainly by regulating the frequency conversion P4 rotating speed of the water pump. Then further heat through the heat pump condenser, finally heat through flue gas heat carrier, flue gas heating intensifies this patent and passes through water pump P5 drive water and circulate between flue gas heater (4) and secondary heater (3), and water cooling flue gas process retrieves flue gas sensible heat and the latent heat of vapor wherein simultaneously.
The device utilizes the internal combustion engine to drive the heat pump to circulate, and the residual heat of the internal combustion engine is utilized, so that the wide-range change of the drying temperature can be realized, and the defect of narrow adjustment range of the drying temperature of the current heat pump is overcome.
Claims (1)
1. A gas pump type drying device, characterized in that: comprises a dehumidifier (17), a condenser (7) and a drying chamber which sequentially form a loop through pipelines; the pipeline of one end of the drying chamber, which is close to the condenser, is an air supply pipe (18), and the pipeline of the other end is an exhaust pipe (19) and an air return pipe (20); the port of the exhaust pipe (19) is communicated with the outside for exhausting, wherein the exhaust pipe (19) is communicated with one end of the return air pipe (20), the other end of the return air pipe (20) is provided with an outside air inlet, and the dry air in the return air pipe (20) and the outside air are mixed and enter the dehumidifier (17);
a blower (F1) is arranged on the blower pipe (18); the exhaust pipe (19) is provided with an exhaust fan (F2);
the device also comprises a throttle valve (8), an evaporator (9) and a compressor (6); the condenser (7) is sequentially connected with the throttle valve (8), the evaporator (9) and the compressor (6) to form a loop to form a heat pump system;
also comprises an internal combustion engine (5) and a smoke heater (4); one end of the internal combustion engine (5) is connected with the compressor (6), and the other end is connected with the flue gas heater (4); the flue gas heater (4) is provided with a first flue gas outlet; a second smoke outlet is arranged between the internal combustion engine (5) and the smoke heater (4);
the air supply pipe (18) is provided with a branch which is parallel to the air supply pipe and used for adjusting the temperature, and the branch is provided with a secondary heater (3); the secondary heater (3) and the flue gas heater (4) are connected to form a loop, and a water pump (P5) is arranged on the loop;
the device also comprises a regenerator (14), a solution regenerator (12), a solution heater (11) and a solution cooler (15); the heat regenerator (14) is arranged between the dehumidifier (17) and the solution regenerator (12) to form a loop, one end of the solution heater (11) is connected with the solution regenerator (12), and the other end is connected with the internal combustion engine; one end of the solution cooler (15) is connected with the dehumidifier (17), and the other end is connected with the evaporator (9);
a solution pump (P1) is arranged between the dehumidifier (17) and the heat regenerator (14); a solution pump (P2) is arranged before the solution regenerator (12) and the solution heater (11); a water pump (P3) is arranged between the solution heater (11) and the internal combustion engine (5); a solution pump (P4) is arranged between the solution cooler (15) and the evaporator (9);
the device also comprises a regenerator nozzle (13) and a dehumidifier nozzle (16), wherein the regenerator nozzle (13) is connected with the solution heater (11) and is arranged above the inside of the solution regenerator (12); the dehumidifier nozzle (16) is connected with the solution cooler (15) and is arranged above the interior of the dehumidifier (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101647.6A CN110094962B (en) | 2019-01-30 | 2019-01-30 | Gas pump type drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910101647.6A CN110094962B (en) | 2019-01-30 | 2019-01-30 | Gas pump type drying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110094962A CN110094962A (en) | 2019-08-06 |
| CN110094962B true CN110094962B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910101647.6A Active CN110094962B (en) | 2019-01-30 | 2019-01-30 | Gas pump type drying device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110094962B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043793B (en) * | 2019-12-17 | 2021-07-13 | 上海理工大学 | Double fresh air and double exhaust multifunctional swimming pool heat pump air conditioning unit |
| CN112268449B (en) * | 2020-09-30 | 2022-06-07 | 山东省食品发酵工业研究设计院 | Gas engine air source heat pump unit, drying device, drying system and method |
| CN113154867B (en) * | 2021-05-08 | 2022-06-17 | 江苏方天电力技术有限公司 | Humiture divides accuse gas heat pump drying system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278207A (en) * | 2010-06-13 | 2011-12-14 | 中国科学院工程热物理研究所 | Solution dehumidification based inlet gas cooling method for gas turbine |
| CN102788493A (en) * | 2012-08-30 | 2012-11-21 | 华北电力大学（保定） | Heat pump drier driven by gas engine |
| CN203642340U (en) * | 2013-10-18 | 2014-06-11 | 合肥铜冠国轩铜材有限公司 | Lithium chloride dehumidification device |
| CN203928667U (en) * | 2014-06-06 | 2014-11-05 | 浙江海洋学院 | A kind of device of cold air drying marine product |
| CN104214873A (en) * | 2014-09-24 | 2014-12-17 | 东南大学 | Thermal pump driving solution dehumidifying device and method based on graded utilization of condensation heat |
| CN105783485A (en) * | 2016-04-12 | 2016-07-20 | 南京师范大学 | Driving heat pump driving device of internal combustion engine |
| CN205402992U (en) * | 2016-03-11 | 2016-07-27 | 华南理工大学 | Gas heat pump driven hollow fiber membrane liquid dehydrating unit |
| CN206669934U (en) * | 2017-03-10 | 2017-11-24 | 郑州云宇新能源技术有限公司 | A kind of solar energy dehydrating unit |
| CN107477909A (en) * | 2017-09-12 | 2017-12-15 | 浙江海洋大学 | A kind of heat pump solution dehumidification type fabric drying machine |
| CN209910354U (en) * | 2019-01-30 | 2020-01-07 | 浙江海洋大学 | Gas pump type drying device |
-
2019
- 2019-01-30 CN CN201910101647.6A patent/CN110094962B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278207A (en) * | 2010-06-13 | 2011-12-14 | 中国科学院工程热物理研究所 | Solution dehumidification based inlet gas cooling method for gas turbine |
| CN102788493A (en) * | 2012-08-30 | 2012-11-21 | 华北电力大学（保定） | Heat pump drier driven by gas engine |
| CN203642340U (en) * | 2013-10-18 | 2014-06-11 | 合肥铜冠国轩铜材有限公司 | Lithium chloride dehumidification device |
| CN203928667U (en) * | 2014-06-06 | 2014-11-05 | 浙江海洋学院 | A kind of device of cold air drying marine product |
| CN104214873A (en) * | 2014-09-24 | 2014-12-17 | 东南大学 | Thermal pump driving solution dehumidifying device and method based on graded utilization of condensation heat |
| CN205402992U (en) * | 2016-03-11 | 2016-07-27 | 华南理工大学 | Gas heat pump driven hollow fiber membrane liquid dehydrating unit |
| CN105783485A (en) * | 2016-04-12 | 2016-07-20 | 南京师范大学 | Driving heat pump driving device of internal combustion engine |
| CN206669934U (en) * | 2017-03-10 | 2017-11-24 | 郑州云宇新能源技术有限公司 | A kind of solar energy dehydrating unit |
| CN107477909A (en) * | 2017-09-12 | 2017-12-15 | 浙江海洋大学 | A kind of heat pump solution dehumidification type fabric drying machine |
| CN209910354U (en) * | 2019-01-30 | 2020-01-07 | 浙江海洋大学 | Gas pump type drying device |
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| Publication number | Publication date |
|---|---|
| CN110094962A (en) | 2019-08-06 |
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