CN111023790A - Chinese herbal medicine heat pump drying system with heat pipe heat regenerator - Google Patents
Chinese herbal medicine heat pump drying system with heat pipe heat regenerator Download PDFInfo
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- CN111023790A CN111023790A CN201911356474.9A CN201911356474A CN111023790A CN 111023790 A CN111023790 A CN 111023790A CN 201911356474 A CN201911356474 A CN 201911356474A CN 111023790 A CN111023790 A CN 111023790A
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- 238000001035 drying Methods 0.000 title claims abstract description 96
- 241000411851 herbal medicine Species 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000003507 refrigerant Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000003860 storage Methods 0.000 abstract description 6
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007791 dehumidification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Classifications
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- 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
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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- 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
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- 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
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a Chinese herbal medicine heat pump drying system with a heat pipe regenerator, which comprises a compressor (1), an oil separator (2), a condenser (3), a liquid storage device (4), a drying filter (5), a thermostatic expansion valve (6), an evaporator (7), a heat pipe regenerator (8), a fan (10), a drying box (11) and an air duct (14), wherein: the compressor, the oil separator, the condenser, the liquid storage device, the drying filter, the thermal expansion valve and the evaporator are sequentially connected to form a closed cycle; the condenser, the evaporator and the fan are positioned in the air duct; two ends of the air duct are respectively connected with the air inlet and the air outlet of the drying box; the upper end and the lower end of the heat pipe regenerator are respectively positioned in the two sections of pipelines of the air pipe. The invention utilizes the evaporator of the heat pump system as a surface cooler, reduces the relative humidity of the circulating air, accelerates the evaporation speed of the moisture of the Chinese herbal medicines in the drying box, and simultaneously does not need to introduce fresh air, thereby reducing the fresh air load and reducing the energy consumption of the system.
Description
Technical Field
The invention relates to the technical field of heat pump drying, in particular to a Chinese herbal medicine heat pump drying system with a heat pipe regenerator.
Background
Chinese herbal medicine has a long drying history, and the drying technology develops along with the development history of the Chinese herbal medicine. The existing drying method mainly comprises the processes of sun drying, shade drying (air drying) and drying. The drying process adopting the hot air drying principle is the most, but the drying process based on the hot air drying principle has the greatest defects that: the loss of effective components is large, and even the quality is seriously degraded.
Currently, there are two factors that affect the drying rate; first, the drying air temperature; the second is the relative humidity of the dry air. The heat pump drying technology applied conventionally obtains energy from air mainly, and is used for drying materials, so that the energy utilization efficiency in the drying process is improved. However, part of fresh air needs to be introduced in the drying process to reduce the relative humidity of the air for drying, so that the fresh air load is increased, and the energy consumption of the system is increased.
Disclosure of Invention
The invention aims to provide a Chinese herbal medicine heat pump drying system with a heat pipe regenerator aiming at the technical defects in the prior art.
Therefore, the invention provides a Chinese herbal medicine heat pump drying system with a heat pipe heat regenerator, which comprises a compressor, an oil separator, a condenser, a liquid storage device, a drying filter, a thermal expansion valve, an evaporator, a heat pipe heat regenerator, a fan, a drying box and an air duct, wherein:
the compressor, the oil separator, the condenser, the liquid storage device, the drying filter, the thermal expansion valve and the evaporator are sequentially connected to form a closed cycle;
the condenser, the evaporator and the fan are positioned in the air duct;
two ends of the air duct are respectively connected with an air inlet A and an air outlet B of the drying box;
the upper end and the lower end of the heat pipe regenerator are respectively positioned in the two sections of pipelines of the air pipe.
Wherein, the refrigerant outlet of the compressor is communicated with the refrigerant inlet of the oil separator (through a hollow connecting pipeline);
the refrigerant outlet of the oil separator is connected with the refrigerant inlet of the condenser;
the refrigerant outlet of the condenser is connected with the refrigerant inlet of the evaporator sequentially through the liquid accumulator, the drying filter and the thermal expansion valve;
and the refrigerant outlet of the evaporator is connected with the refrigerant inlet of the compressor.
The oil return port of the oil separator is communicated with the compressor and the first oil inlet through a hollow oil return pipe.
The air pipe comprises a first pipeline, a second pipeline and a third pipeline which are sequentially communicated with each other;
the first pipeline and the third pipeline are distributed at intervals up and down;
the upper end and the lower end of the heat pipe regenerator are respectively positioned in the first pipeline and the third pipeline.
Wherein, the main part distribution shape of tuber pipe is the U-shaped.
Wherein, a filter screen is arranged inside the air duct;
the filter screen is positioned on the pipeline between the lower end of the heat pipe regenerator and the air outlet B of the drying box.
Wherein, a heater is arranged in the air duct;
the heater is arranged on a pipeline between the condenser and the air inlet A of the drying box.
The lower part of the heat pipe regenerator is provided with a second water pan with an opening at the top;
the lower part of the second water receiving tray is connected with a second water drain valve.
Wherein, the lower part of the evaporator is provided with a first water pan with an opening at the top;
the lower part of the first water receiving tray is connected with a first water drain valve.
Compared with the prior art, the Chinese herbal medicine heat pump drying system with the heat pipe regenerator provided by the invention has the advantages that the evaporator of the heat pump system is used as a surface air cooler to capture water vapor in air, so that the relative humidity of circulating air is reduced, the evaporation speed of Chinese herbal medicine moisture in a drying box is accelerated, meanwhile, drying air flows in a closed pipeline, fresh air does not need to be introduced, the fresh air load is reduced, the energy consumption of the system is reduced, and the production practice significance is great.
In addition, the heat pipe heat regenerator provided by the invention can transfer the heat of return air of the drying box to the inlet air of the drying box, thereby realizing the purpose of energy conservation.
In addition, according to the invention, hot air from the drying box firstly passes through the heat pipe regenerator to transfer heat to the dehumidified cold air, so that the air entering the drying box is preheated, and the air before dehumidification is precooled, thereby reducing energy consumption in the dehumidification process; meanwhile, after the air from the drying box passes through the evaporator, the water in the air is analyzed, and the relative humidity of the air is reduced, so that the drying process can be accelerated.
Drawings
FIG. 1 is a schematic structural diagram of a drying system of a Chinese herbal medicine heat pump with a heat pipe regenerator according to the present invention;
in the figure: 1. a compressor; 2. an oil separator; 3. a condenser; 4. a liquid storage device 5 and a dry filter;
6. a thermostatic expansion valve; 7. an evaporator; 8. a heat pipe regenerator; 9. a filter screen; 10. a fan;
11. a drying oven; 12. a first water drain valve; 13. a first water pan; 14. an air duct; 15. a heater;
16. a second water pan; 17. and a second water drain valve.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.
Referring to fig. 1, the present invention provides a chinese herbal medicine heat pump drying system with a heat pipe heat regenerator, which includes a compressor 1, an oil separator 2, a condenser 3, a liquid reservoir 4, a drying filter 5, a thermostatic expansion valve 6, an evaporator 7, a heat pipe heat regenerator 8, a fan 10, a drying box 11 and an air duct 14, wherein:
the compressor 1, the oil separator 2, the condenser 3, the liquid storage device 4, the drying filter 5, the thermostatic expansion valve 6 and the evaporator 7 are sequentially connected to form a closed cycle;
the condenser 3, the evaporator 7 and the fan 10 are positioned inside the air duct 14;
two ends of the air duct 14 are respectively connected with an air inlet A and an air outlet B of the drying box 11;
the upper and lower ends of the heat pipe regenerator 8 are respectively located in the two sections of pipelines of the air pipe 14.
It should be noted that the drying box 11 is used for placing the Chinese herbal medicines to be dried, and the Chinese herbal medicines can be placed on the goods shelf.
In the invention, the refrigerant outlet of the compressor 1 is communicated with the refrigerant inlet of the oil separator 2 (through a hollow connecting pipeline);
the refrigerant outlet of the oil separator 2 is connected with the refrigerant inlet of the condenser 3;
a refrigerant outlet of the condenser 3 is connected with a refrigerant inlet of the evaporator 7 sequentially through the liquid accumulator 4, the drying filter 5 and the thermostatic expansion valve 6;
the refrigerant outlet of the evaporator 7 is connected to the refrigerant inlet of the compressor 1.
In the concrete implementation, an oil return port of the oil separator 2 is communicated with the compressor 1 and the first oil inlet through a hollow oil return pipe.
In the present invention, in a specific implementation, the air duct 14 includes a first pipeline 141, a second pipeline 141 and a third pipeline 143 which are sequentially communicated with each other;
the first pipeline 141 and the third pipeline 143 are vertically distributed at intervals;
the upper and lower ends of the heat pipe regenerator 8 are respectively located in the first pipeline 141 and the third pipeline 143.
In particular, the air duct 14 has a U-shaped main body.
In a specific implementation, the first pipe 141, the second pipe 141, and the third pipe 143 may be integrally formed.
In the invention, a filter screen 9 is arranged inside the air duct 14;
the filter screen 9 is positioned on the pipeline between the lower end of the heat pipe regenerator 8 and the air outlet B of the drying box 11.
In the present invention, in a specific implementation, a heater 15 is disposed inside the air duct 14;
the heater 15 is installed on a pipe between the condenser 3 and the air inlet a of the drying box 11.
In a specific implementation, the heater 15 may be a conventional heating rod (e.g., a ceramic heating rod).
In the present invention, the heat pipe regenerator 8 may be formed by connecting a plurality of groups of heat pipes in parallel, and the heat pipes are externally sleeved with fins.
In the invention, in concrete implementation, the lower part of the heat pipe regenerator 8 is provided with a second water pan 16 with an opening at the top;
the lower part of the second water receiving tray 16 is connected with a second water drain valve 17.
In the invention, in the concrete implementation, a first water pan 13 with an opening at the top is arranged at the lower part of the evaporator 7;
the lower part of the first water receiving tray 13 is connected with a first water drain valve 12.
In the present invention, it should be noted that any two components that are communicated with each other through a section of pipeline.
In the present invention, the dry filter 5 may be a conventional dry filter, such as model DML series dry filter manufactured by denver corporation, and in the present invention, the dry filter is used for drying moisture in the refrigeration cycle.
In the invention, the heat pipe regenerator 8 can adopt the existing heat pipe regenerator or can be specially designed and customized according to working conditions, and in the system of the invention, the heat pipe regenerator is used for absorbing waste heat of dried hot air and heating dehumidified cold air, thereby realizing the purpose of high-efficiency utilization of energy.
In the present invention, the heater 15 may be an existing heater with a function of heating air, or may be specially designed and customized according to the working condition, and the main function in the system of the present invention is to heat air, so as to dry the materials in the drying oven.
It should be noted that, for the present invention, the working principle is as follows: the compressor 1 compresses low-temperature and low-pressure refrigerant into high-temperature and high-pressure gas, then the high-temperature and high-pressure gas enters the oil separator 2, oil is separated from the oil in the oil separator 2, the high-temperature and high-pressure refrigerant enters the condenser 3 to be condensed and released to form liquid refrigerant, then the liquid refrigerant enters the liquid accumulator 4, the liquid refrigerant is used for storing the liquid refrigerant, the liquid refrigerant flows through the drying filter 5, the drying filter 5 is used for drying moisture possibly existing in the refrigerant, then the refrigerant is throttled and depressurized in the thermostatic expansion valve 6 to form a low-temperature and low-pressure gas-liquid two-phase state, then the low-temperature and low-pressure gas refrigerant enters the evaporator 7, the liquid refrigerant absorbs heat and evaporates in the evaporator 7 to form low-temperature and low-.
In order to more clearly understand the technical solution of the present invention, the following description is given with reference to specific examples.
Example 1.
The circulating air volume is selected to be 1kg/h, the temperature of an evaporator 7 (used as a surface cooler) is set to be 15 ℃, the temperature difference between the front heat exchange and the back heat exchange of a heat pipe regenerator 8 is set to be 15 ℃ (specifically, the temperature difference between the front heat exchange and the back heat exchange of air flowing from left to right and the temperature difference between the front heat exchange and the back heat exchange of air flowing from right to left are set to be 30 ℃, the temperature of dry air is set to be 90 ℃, and the temperature of hot air in a drying box is reduced to be 5.
The implementation process is as follows: hot air with the relative humidity of 95% leaves the drying box 11 at the temperature of 85 ℃, and after passing through the lower end of the heat pipe regenerator 8, the temperature of the hot air is 75 ℃, the relative humidity is 100%, and 0.206kg of water is separated out; then passes through the surface of an evaporator 7, the temperature of circulating air is changed to 45 ℃, the relative humidity is 100 percent, and 0.183kg of water is separated out; the circulating air continuously flows through the upper end of the heat pipe regenerator 8, absorbs heat on the surface of the heat pipe regenerator 8, the temperature is changed to 55 ℃, and the relative humidity is 56.8%; the circulating air continuously absorbs heat through the surface of the condenser 3, the temperature is 70 ℃, and the relative humidity is 23.5%; the circulating air is heated by a heater 15 (such as a heating rod) to continuously absorb heat, the temperature is 90 ℃, the relative humidity is 4.6%, and then the circulating air enters the drying box 11 to dry the Chinese herbal medicines placed in the drying box 11, so that a cycle is completed.
In this embodiment, the relative humidity of the drying air at the outlet of the drying oven 11 is 95%, and the relative humidity of the hot air entering the drying oven 11 is reduced to 4.6% by the heat pipe heat regenerator 8 and the evaporator 7, so that the drying speed of the Chinese herbal medicine placed in the drying oven can be effectively increased.
It should be noted that, for the invention, the heat of the hot air at the outlet of the drying box is recovered by the heat pipe regenerator, the energy exchange and utilization efficiency of the system is improved, and in addition, the water in the drying air is analyzed by the cooling of the surfaces of the heat pipe regenerator and the evaporator, so that the relative humidity of the drying air is reduced, and the drying speed is improved.
In summary, compared with the prior art, the Chinese herbal medicine heat pump drying system with the heat pipe heat regenerator provided by the invention utilizes the evaporator of the heat pump system as a surface air cooler to capture water vapor in air, so that the relative humidity of circulating air is reduced, the evaporation speed of the Chinese herbal medicine moisture in the drying box is accelerated, and meanwhile, drying air flows in a closed pipeline without introducing fresh air, so that the fresh air load is reduced, the energy consumption of the system is reduced, and the production practice significance is great.
In addition, the heat pipe heat regenerator provided by the invention can transfer the heat of return air of the drying box to the inlet air of the drying box, thereby realizing the purpose of energy conservation.
In addition, according to the invention, hot air from the drying box firstly passes through the heat pipe regenerator to transfer heat to the dehumidified cold air, so that the air entering the drying box is preheated, and the air before dehumidification is precooled, thereby reducing energy consumption in the dehumidification process; meanwhile, after the air from the drying box passes through the evaporator, the water in the air is analyzed, and the relative humidity of the air is reduced, so that the drying process can be accelerated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a chinese herbal medicine heat pump drying system with heat pipe regenerator, its characterized in that, includes compressor (1), oil separator (2), condenser (3), reservoir (4), drier-filter (5), thermal expansion valve (6), evaporimeter (7), heat pipe regenerator (8), fan (10), drying cabinet (11) and wind channel (14), wherein:
the compressor (1), the oil separator (2), the condenser (3), the liquid reservoir (4), the drying filter (5), the thermostatic expansion valve (6) and the evaporator (7) are sequentially connected to form closed circulation;
the condenser (3), the evaporator (7) and the fan (10) are positioned in the air duct (14);
two ends of the air duct (14) are respectively connected with an air inlet and an air outlet of the drying box (11);
the upper end and the lower end of the heat pipe regenerator (8) are respectively positioned in the two sections of pipelines of the air pipe (14).
2. The drying system of the Chinese herbal medicine heat pump as claimed in claim 1, wherein the refrigerant outlet of the compressor 1 is communicated with the refrigerant inlet of the oil separator 2;
the refrigerant outlet of the oil separator 2 is connected with the refrigerant inlet of the condenser 3;
a refrigerant outlet of the condenser 3 is connected with a refrigerant inlet of the evaporator 7 sequentially through the liquid accumulator 4, the drying filter 5 and the thermostatic expansion valve 6;
the refrigerant outlet of the evaporator 7 is connected to the refrigerant inlet of the compressor 1.
3. The drying system of the Chinese herbal medicine heat pump according to claim 2, wherein the oil return port of the oil separator (2) is communicated with the compressor (1) and the first oil inlet through a hollow oil return pipe.
4. The drying system of a Chinese herbal medicine heat pump as claimed in claim 1, wherein the air duct (14) comprises a first duct (141), a second duct (141) and a third duct (143) which are in communication with each other in sequence;
the first pipeline (141) and the third pipeline (143) are distributed at intervals up and down;
the upper end and the lower end of the heat pipe regenerator (8) are respectively positioned in the first pipeline (141) and the third pipeline (143).
5. The drying system of a Chinese herbal medicine heat pump as claimed in claim 1, wherein the main body of the air duct (14) is U-shaped.
6. The drying system of the Chinese herbal medicine heat pump as claimed in claim 1, wherein a filter screen (9) is provided inside the air duct (14);
the filter screen (9) is positioned on the pipeline between the lower end of the heat pipe regenerator (8) and the air outlet of the drying box (11).
7. The drying system of the Chinese herbal medicine heat pump as claimed in claim 1, wherein a heater (15) is provided inside the air duct (14);
the heater (15) is arranged on a pipeline between the condenser (3) and an air inlet of the drying box (11).
8. The drying system of the Chinese herbal medicine heat pump according to any one of claims 1 to 7, characterized in that a second water pan (16) with an open top is installed at the lower part of the heat pipe regenerator (8);
the lower part of the second water receiving tray (16) is connected with a second water drain valve (17).
9. The drying system of the Chinese herbal medicine heat pump according to any one of claims 1 to 8, characterized in that a first water pan (13) with an open top is installed at the lower part of the evaporator (7);
the lower part of the first water receiving tray (13) is connected with a first water drain valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911356474.9A CN111023790A (en) | 2019-12-25 | 2019-12-25 | Chinese herbal medicine heat pump drying system with heat pipe heat regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911356474.9A CN111023790A (en) | 2019-12-25 | 2019-12-25 | Chinese herbal medicine heat pump drying system with heat pipe heat regenerator |
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| CN111023790A true CN111023790A (en) | 2020-04-17 |
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| CN201911356474.9A Pending CN111023790A (en) | 2019-12-25 | 2019-12-25 | Chinese herbal medicine heat pump drying system with heat pipe heat regenerator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111569344A (en) * | 2020-05-28 | 2020-08-25 | 青岛理工大学 | Circulating drying device, fire hose drying system and method |
| CN112284093A (en) * | 2020-11-12 | 2021-01-29 | 北京中矿赛力贝特节能科技有限公司 | Drying device |
| CN112923681A (en) * | 2021-02-23 | 2021-06-08 | 山东建筑大学 | Heat pump type energy-saving drying system integrating self-water supply and uniform drying |
| CN113124648A (en) * | 2021-04-12 | 2021-07-16 | 北京航空航天大学 | Drying system and method |
| CN114183951A (en) * | 2021-12-16 | 2022-03-15 | 珠海格力电器股份有限公司 | Refrigerant purification recovery device and refrigerant purification system |
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| WO2021237998A1 (en) * | 2020-05-28 | 2021-12-02 | 青岛理工大学 | Circulating drying device, and fire hose drying system and method |
| CN112284093A (en) * | 2020-11-12 | 2021-01-29 | 北京中矿赛力贝特节能科技有限公司 | Drying device |
| CN112923681A (en) * | 2021-02-23 | 2021-06-08 | 山东建筑大学 | Heat pump type energy-saving drying system integrating self-water supply and uniform drying |
| CN113124648A (en) * | 2021-04-12 | 2021-07-16 | 北京航空航天大学 | Drying system and method |
| CN114183951A (en) * | 2021-12-16 | 2022-03-15 | 珠海格力电器股份有限公司 | Refrigerant purification recovery device and refrigerant purification system |
| CN114183951B (en) * | 2021-12-16 | 2022-12-09 | 珠海格力电器股份有限公司 | Refrigerant purification recovery device and refrigerant purification system |
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