WO2017034132A1 - Système de séchage hybride - Google Patents

Système de séchage hybride Download PDF

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Publication number
WO2017034132A1
WO2017034132A1 PCT/KR2016/005964 KR2016005964W WO2017034132A1 WO 2017034132 A1 WO2017034132 A1 WO 2017034132A1 KR 2016005964 W KR2016005964 W KR 2016005964W WO 2017034132 A1 WO2017034132 A1 WO 2017034132A1
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WIPO (PCT)
Prior art keywords
heat
storage tank
heat storage
hot air
evaporator
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Application number
PCT/KR2016/005964
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English (en)
Korean (ko)
Inventor
김종률
이원근
김혜영
Original Assignee
주식회사 티이애플리케이션
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Publication of WO2017034132A1 publication Critical patent/WO2017034132A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
    • F26B7/002—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00 using an electric field and heat
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A23B7/0205—Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting liquids
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
    • A23L3/01—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment using microwaves or dielectric heating
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • A23L3/54—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution using irradiation or electrical treatment, e.g. ultrasonic waves
    • 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
    • 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
    • F26B23/00—Heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • F26B23/004—Heating arrangements using waste heat recovered from dryer exhaust gases by compressing and condensing vapour in exhaust gases, i.e. using an open cycle heat pump system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
    • F26B23/005—Heating arrangements using waste heat recovered from dryer exhaust gases using a closed cycle heat pump system ; using a heat pipe system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00

Definitions

  • the present invention relates to a combined drying system, and more particularly to a combined drying system for drying a dry object using hot air from microwaves and heat pumps.
  • hot air drying equipment is mainly used to remove moisture of the dry matter such as grains or medicines.
  • a hot air drying facility is a facility which supplies hot air to the inside of the drying tank in which the to-be-contained object was accommodated, and dries a to-be-dried object through a contact with a to-be-dried thing.
  • An object of the present invention is to provide a complex drying system that can further improve efficiency.
  • the combined drying system includes a primary drying unit including a microwave generator and a drying chamber for primary drying the object by using the microwave generated by the microwave generator;
  • a secondary drying unit including a heat pump and an airflow dryer for secondary drying the dry matter from the drying chamber by using hot air absorbing the heat of condensation of the heat pump;
  • the high temperature cooling water that cools the microwave generator is stored and regenerated, and the stored high temperature cooling water is a heat source of the evaporator of the heat pump.
  • a heat storage tank for supplying and radiating heat; It includes a cooling water injection unit for spraying a portion of the high temperature cooling water stored in the heat storage tank to the surface of the evaporator.
  • the heat of the cooling water cooling the microwave generator is regenerated in the heat storage tank, and then supplied to the heat pump to radiate heat. Even when stopped, since the heat stored in the heat storage tank can be continuously supplied to the heat source of the evaporator, a stable heat source can be secured.
  • the three fluids such as the refrigerant, the coolant, and the air can be heat exchanged at the same time, not only can the heat exchange efficiency be improved, but also no additional heat exchanger needs to be installed.
  • FIG. 1 is a view showing a first operating mode of a combined drying system according to a first embodiment of the present invention.
  • FIG. 2 is a view showing a second operation mode of the combined drying system according to the first embodiment of the present invention.
  • FIG. 3 is a view schematically showing the interior of the heat storage tank of the complex drying system according to the first embodiment of the present invention.
  • FIG. 4 is a view showing a first operation mode of a combined drying system according to a second embodiment of the present invention.
  • FIG. 5 is a view showing a second operation mode of the combined drying system according to the second embodiment of the present invention.
  • FIG. 6 is a view showing a coolant injection unit of a complex drying system according to a second embodiment of the present invention.
  • 1 is a view showing a first operating mode of a combined drying system according to a first embodiment of the present invention.
  • 2 is a view showing a second operation mode of the combined drying system according to the first embodiment of the present invention.
  • 3 is a view schematically showing the interior of the heat storage tank of the complex drying system according to the first embodiment of the present invention.
  • the primary drying unit 10 firstly drys the dried object in the drying chamber 14 by using the microwave generated by the microwave generator 11 and the hot air generated by the heat pump 30.
  • the microwave is irradiated into the drying chamber 14, and the hot air generated by the heat pump 30 to be described later is also supplied as an example.
  • the present invention is not limited thereto, and only one of the microwave and the hot air may be selected and used according to the condition of the dry matter or the temperature condition of the hot air.
  • the microwave generator 11 is a device for generating microwaves.
  • the microwave generator 11 is connected to the magnetron 12 for irradiating the microwaves.
  • the magnetron 12 is provided above the drying chamber 14 to irradiate microwaves into the drying chamber 14.
  • the microwave generator 11 is provided with a cooling water heat exchanger 13 through which cooling water passes.
  • the cooling water heat exchanger 13 is connected to the heat storage passage 51 and the generator circulation passage 52 which will be described later.
  • the drying chamber 14 is a chamber in which an object to be dried is accommodated.
  • the magnetron 12 is installed above the drying chamber 14.
  • An inlet 14a is formed at an upper portion of the drying chamber 14, and an outlet 14b is formed at a lower portion thereof to discharge the first dried object.
  • the inlet opening and closing means 16a is installed in the inlet opening 14a, and the outlet opening and closing means 16b is installed in the outlet opening 14b.
  • the drying chamber 14 is connected to drying chamber hot air supply passages 81 and 82 and a drying chamber hot air recovery passage 83.
  • the drying chamber 14 is provided with a stirrer for stirring and transporting a dry item.
  • the drying chamber hot air supply passages 81 and 82 are flow passages that guide the hot air generated by the heat pump 30 to the drying chamber 14. That is, the drying chamber hot air supply passages 81 and 82 guide at least a portion of the hot air absorbing the heat of condensation of the heat pump 30 to the drying chamber 14.
  • the drying chamber hot air supply passages 81 and 82 are branched from the hot air supply passage 84 described later, for example.
  • the present invention is not limited thereto, and the drying chamber hot air supply passages 81 and 82 may be directly connected to the condenser 32 of the heat pump 30.
  • the drying chamber hot air supply passages 81 and 82 are provided with auxiliary heaters 70 for heating the hot air from the heat pump 30.
  • the auxiliary heater 70 is operated when the temperature of the hot air from the heat pump 30 is out of a preset temperature range.
  • First and second valves 91 and 92 are provided in the drying chamber hot air supply passages 81 and 82 to open and close the passage. The first and second valves 91 and 92 shield the drying chamber hot air supply passages 81 and 82 in the second operation mode in which the operation of the microwave generator 11 is stopped.
  • the drying chamber hot air recovery flow path 83 is a flow path that guides the hot air discharged from the drying chamber 14 to the heat pump 30. Hot air from the drying chamber hot air recovery flow path 83 is used as a heat source of the evaporator 34.
  • the drying chamber hot wind recovery flow path 83 is described as being connected to the hot wind recovery flow path 85 to be described later, for example, but not limited to the evaporator 34 of the heat pump 30. It is of course also possible to connect directly.
  • the drying chamber hot wind recovery flow path 83 is provided with a third valve 93 for opening and closing the flow path. The third valve 93 shields the drying chamber hot air recovery passage 83 in the second operation mode in which the operation of the microwave generator 11 is stopped.
  • a blower may be installed in the drying chamber hot air recovery flow path 83.
  • the drying chamber 14 is provided with a dry tank 18.
  • the to-be-dried tank 18 is a tank for temporarily storing the to-be-dried product dried in the drying chamber 14.
  • the dry tank 18 is disposed below the outlet 14b of the drying chamber 14.
  • An upper portion of the dry tank 18 is formed in communication with the discharge port 14b, and a lower tank discharge port 18a and the tank opening / closing part 18b are provided.
  • the tank opening / closing portion 18b is opened when discharging the dry matter stored in the dry tank 18 to the first conveyor 61 and is shielded during the operation of the microwave generator 11.
  • the drying chamber 14 and the dry tank 18 are separately provided, and the outlet 14b of the dry chamber 14 is communicated with the upper portion of the dry tank 18.
  • the drying chamber 14 and the dry tank 18 may be formed integrally.
  • a first conveyor 61 is installed between the dry tank 18 and the air flow dryer 22.
  • the first conveyor 61 transfers the dry matter from the dry tank 18 to the air flow dryer 22.
  • the secondary drying unit 20 performs secondary drying of the dry matter in the airflow dryer 22 using the hot air from the heat pump 30.
  • the secondary drying unit 20 includes the heat pump 30, the air flow dryer 22, a hot air supply passage 84, and a hot air recovery passage 85.
  • the heat pump 30 includes a compressor 31, a condenser 32, an expansion valve 33, and an evaporator 34.
  • the compressor 31 compresses the refrigerant at high temperature and high pressure.
  • the refrigerant compressed by the compressor 31 flows into the condenser 32.
  • the condenser 32 heat-exchanges the refrigerant introduced from the compressor 31 with the air passing through the evaporator 34 to condense the refrigerant.
  • the hot air supply passage 84 is connected to the condenser 32.
  • the hot air supply passage 84 connects the condenser 32 and the airflow dryer 22.
  • the hot air supply flow path 84 is a flow path for supplying the hot air absorbing the condensation heat to the air flow dryer 22 while condensing the refrigerant in the condenser 32.
  • a fourth opening / closing valve 94 is provided in the hot air supply passage 84.
  • a blower may be installed in the hot air supply passage 84.
  • the expansion valve 33 expands the refrigerant from the condenser 32.
  • the evaporator 34 is a refrigerant that is expanded from the expansion valve 33, the hot air recovered from the drying chamber 11 and the air flow dryer 22, and the high-temperature cooling water from the heat storage tank (50) Heat exchange with each other. That is, the evaporator 34 is a triple heat exchanger in which the refrigerant, the hot air, and the cooling water exchange with each other. In the evaporator 34, the refrigerant is evaporated by receiving a heat source from the cooling water and the hot air.
  • the evaporator 34 includes a first heat exchange flow passage formed in a double pipe structure to exchange heat with each other while passing through the refrigerant and the cooling water, and a second heat exchange flow passage formed to surround the outside of the first heat exchange flow passage and allow the hot air to pass therethrough.
  • the coolant In the first heat exchange flow path, the coolant must be heat-exchanged not only with the coolant but also with the hot air, and a coolant pipe through which the coolant passes is disposed outside the coolant pipe through which the coolant passes.
  • a plurality of fins are formed on the surfaces of the first heat exchange flow paths to increase the heat exchange area.
  • the second heat exchange flow path is formed such that the hot air flows in a direction perpendicular to the flow direction of the refrigerant.
  • the hot air recovery flow path 85 is connected to the second heat exchange flow path.
  • the hot air recovery passage 85 connects the airflow dryer 22 and the evaporator 34.
  • the hot air recovery flow path 85 is a flow path for supplying the hot air obtained by drying the dried object in the air flow dryer 22 to the evaporator 34.
  • a blower may be installed in the hot air recovery flow path 85.
  • a hot air bypass flow path 86 is connected to the hot air recovery flow path 85.
  • the hot air bypass passage 86 is a passage through which some of the hot air from the air flow dryer 22 bypasses the evaporator 34.
  • One end of the hot air bypass passage 86 is connected to the hot air recovery passage 85, and the other end thereof is connected to the hot air supply passage 84.
  • the hot air bypass passage 86 is also connected to the passage 87 connecting the evaporator 34 and the condenser 32 by a connection passage 88.
  • the hot air bypass passage 86 is provided with fifth, sixth and seventh opening and closing valves 95, 96 and 97.
  • An eighth opening / closing valve 98 is installed in the connection passage 88.
  • the fifth, sixth and seventh opening / closing valves 95, 96 and 97 may be controlled to be opened or closed in accordance with the temperature or other conditions of the hot air from the airflow dryer 22.
  • the air flow dryer 22 is a device for secondary drying of the dried object by using the hot air supplied from the hot air supply passage 84.
  • the airflow dryer 22 receives the first dried item to be dried from the first conveyor 61.
  • the airflow dryer 22 has a cylindrical shape that is long in the vertical direction.
  • An ejector 23 is formed on one side of the upper portion of the airflow dryer 22 for discharging dry matter and hot air.
  • Hot air discharge pipe 24 for discharging hot air is connected to the upper end of the discharger (23).
  • the hot air discharge pipe 24 is connected to the hot air recovery flow path 85.
  • the mixing unit 80 is installed at the point where the hot air discharge pipe 24 and the hot air recovery flow path 85 are connected.
  • the mixing unit 80 mixes hot air discharged from the drying chamber hot air recovery flow path 83 with hot air discharged from the hot air discharge pipe 24 to increase the reuse efficiency of hot air.
  • a discharge port for discharging the dry object is formed at the lower end of the discharger 23, and a second conveyor 62 for transporting the dry object is installed at the lower end of the discharge port.
  • the heat storage tank 50 stores and accumulates high temperature cooling water that cools the microwave generator 11, and radiates the stored high temperature cooling water to be supplied to a heat source of the evaporator 34.
  • the heat storage tank 50 performs both the heat storage and the heat dissipation in the first operation mode in which both the microwave generator 11 and the air flow dryer 22 are operated.
  • the heat storage tank 50 performs only the heat dissipation without performing the heat storage.
  • the microwave generator 11 is stopped in the drying chamber 14 when operations such as adding, replacing, and discharging the dry matter are performed.
  • the heat stored in the heat storage tank 50 may be used in advance, thereby ensuring a stable heat source. It is possible.
  • the heat storage tank 50 and the microwave generator 11 are connected to the heat storage flow path 51 and the generator circulation flow path 52.
  • the heat storage flow path (51) connects the cooling water heat exchanger (13) installed in the microwave generator (11) and the heat storage tank (50), and cools the high temperature coolant to cool the microwave generator (11). 50) is a flow path for heat storage.
  • the generator circulation passage 52 connects the cooling water heat exchanger 13 installed in the microwave generator 11 and the heat storage tank 50 to transfer the low temperature cooling water stored in the heat storage tank 50 to the microwave generator. It is a circulating flow path.
  • the generator circulation passage 52 is provided with a first pump 51.
  • the heat storage tank 50 and the evaporator 34 are connected to the heat dissipation passage 53 and the heat storage tank circulation passage 54.
  • the heat dissipation flow path 53 connects the evaporator 34 and the heat storage tank 50 to supply heat to the evaporator 34 to cool the hot water stored in the heat storage tank 50 to dissipate heat.
  • the heat dissipation flow path 53 is provided with a second pump 53a.
  • the heat storage tank circulating flow path 54 is a flow path for connecting the evaporator 34 and the heat storage tank 50 to circulate the cooling water radiated while passing through the evaporator 34 to the heat storage tank 50 again.
  • the heat storage tank 50 stores the high temperature cooling water introduced from the heat storage flow passage 51 at the upper portion, and the low temperature cooling water introduced from the heat storage tank circulation flow passage 54 is stored at the lower portion.
  • the heat storage tank 50 is provided with a high temperature flow path 50a connected to the heat storage flow path 51 to send a high temperature cooling water flowing from the heat storage flow path 51 to the upper portion, and the heat storage tank circulation flow path 54. It is connected to the low temperature flow path (50b) is provided for sending the cooling water of the low temperature flowing from the heat storage tank circulation passage 54 to the bottom.
  • the high temperature flow path 50a is located above the heat storage tank 50, and an upper end portion is formed in a disk shape.
  • the high temperature flow path 50a is a flow path through which high temperature cooling water flows, the heat storage flow path 51 and the heat radiation flow path 53 are connected.
  • the low temperature flow path 50b is located below the heat storage tank 50, and a lower end portion is formed in a disk shape. Since the low temperature flow path 50b is a flow path for cooling water having a low temperature, the heat storage tank circulation flow path 54 and the generator circulation flow path 52 are connected to each other. At this time, the temperature difference between the high temperature cooling water and the low temperature cooling water is about 5 ° C.
  • a first operation mode in which the microwave generator 11, the airflow dryer 22, and the heat pump 30 are all operated will be described.
  • both the microwave generator 11 and the air flow dryer 22 are operated to perform primary drying of the dry matter in the drying chamber 14, and the air flow dryer 22 is performed. In the interior, secondary drying of the first dried object is achieved.
  • the microwave generator 11 since the microwave generator 11 is operated, heat storage is possible in the heat storage tank 50, and since the heat pump 30 is operated, heat dissipation of the heat storage tank 50 is also performed. This will be described in detail later.
  • the microwave generator 11 When the dry matter is injected into the drying chamber 14 and the inlet 14a of the drying chamber 14 and the tank outlet 18b of the dry tank 18 are shielded, the microwave generator 11 Is working. During operation of the microwave generator 11, the inlet 14a and the outlet 14b of the drying chamber 14 remain shielded to prevent exposure of the microwaves. It will be described by way of example that the dry matter is not discharged from the drying chamber 14 during the operation of the microwave generator 11. However, the present invention is not limited thereto, and the outlet 14b of the drying chamber 14 may be opened and only the tank outlet 18a may be shielded to prevent exposure of the microwaves. During operation of the microwave generator 11, the stirrer provided in the drying chamber 14 is rotated so that the dry matter in the drying chamber 14 may be uniformly dried.
  • tank outlet 18a of the to-be-dried tank 18 is also described as an example, but it is not limited to this, but the tank outlet 18a of the to-be-dried tank 18 is opened, It is also possible, of course, that the dry matter temporarily stored in the dry tank 18 is discharged to the first conveyor 61.
  • the hot air generated by the heat pump 30 is supplied to the drying chamber 14 through the drying chamber hot air supply passages 81 and 82.
  • the microwave generated by the microwave generator 11 is irradiated to the drying chamber 14.
  • the drying chamber 14 primary drying of the dried object is performed by the microwaves and the hot air.
  • stirring and conveying of the dried object are performed by the rotation of the stirrer mounted therein.
  • the dry matter to be dried first is transferred by the transfer of the stirrer and temporarily stored in the dry tank 18. Since the drying chamber 14 or the dry tank 18 should not be opened during the operation of the microwave generator 11, the tank outlet 18a of the dry tank 18 is shielded and the primary The dried object is temporarily stored in the object tank 18.
  • the cooling water cooling the microwave generator 11 is supplied to the heat storage tank 50 through the heat storage flow path (51).
  • the high temperature cooling water supplied to the heat storage tank 50 accumulates on the upper portion of the heat storage tank 50.
  • the low temperature cooling water stored in the lower portion of the heat storage tank 50 is circulated to the microwave generator 11 through the generator circulation passage 52 to cool the microwave generator 11.
  • the high temperature cooling water stored in the upper portion of the heat storage tank 50 is supplied to the evaporator 34 of the heat pump 30 through the heat dissipation passage 53 and provided as a heat source of the evaporator 34. Therefore, in the heat storage tank 50, both heat storage and heat dissipation are made.
  • the hot air drying the dried object in the drying chamber 14 is discharged through the drying chamber hot air discharge passage 83 and flows into the hot air recovery passage 85.
  • secondary drying of the dry matter by hot air supplied from the heat pump 30 is performed.
  • the hot air from the drying chamber 14 and the hot air from the airflow dryer 22 are recovered to the heat pump 30 through the hot air recovery flow path 85.
  • Hot air recovered through the hot air recovery flow path 85 is introduced into the evaporator 34 of the heat pump 30, and high-temperature cooling water is supplied from the heat storage tank 50. Therefore, in the evaporator 34, triple heat exchange with the hot air, the high temperature cooling water and the refrigerant is performed. Therefore, a sufficient heat source can be supplied to the evaporator 34.
  • the refrigerant evaporated in the evaporator 34 is introduced into the condenser 32 via the compressor 31.
  • the condenser 32 heats the refrigerant from the compressor 31 and the hot air passing through the evaporator 34.
  • Hot air absorbed from the condenser 32 through heat exchange may be supplied to the airflow dryer 22 and the drying chamber 14 through the hot air supply passage 84.
  • the second operation mode In the second operation mode, the operation of the microwave generator 11 is stopped, and the airflow dryer 22 and the heat pump 30 are operating modes.
  • the second operation mode is a state in which the microwave generator 11 is stopped by opening the drying chamber 14 for inputting, discharging, and replacing a dry item in the drying chamber 14.
  • the present invention is not limited thereto and may be stopped to check the failure of the microwave generator 11.
  • the primary drying of the dried product In the second operation mode, the primary drying of the dried product is stopped, but the secondary drying of the dried material first dried in the airflow dryer 22 may be continued.
  • the second operation mode since the operation of the microwave generator 11 is stopped, the heat storage of the heat storage tank 50 is stopped, but the heat dissipation of the heat storage tank 50 is continued because the heat pump 30 is operated. This can be done.
  • the microwave The generator 11 is stopped.
  • the hot air generated by the heat pump 30 is also supplied to the drying chamber 14 is blocked. That is, the drying chamber hot air supply passages 81 and 82 are also shielded, and the supply of hot air to the drying chamber 14 is blocked.
  • the outlet 14b of the drying chamber 14 is opened.
  • the dry matter to which the primary drying is performed in the drying chamber 14 is transferred by the transfer of the stirrer and temporarily stored in the dry tank 18.
  • the tank outlet 18a of the to-be-dried tank 18 is also opened, and the first-dried to-be-dried material is transferred to the airflow dryer 22 through the first conveyor 61.
  • Hot air recovered through the hot air recovery flow path 85 is introduced into the evaporator 34 of the heat pump 30, and high-temperature cooling water is supplied from the heat storage tank 50.
  • the high temperature cooling water stored in the heat storage tank 50 may be supplied to the evaporator 34. Accordingly, triple heat exchange of the hot air, the high temperature cooling water, and the refrigerant is performed in the evaporator 34, and a heat source of the evaporator 34 can be secured even when the microwave generator 11 is stopped.
  • the operation of the microwave generator 11 is stopped in the second operation mode. Even if it is, the high temperature cooling water stored in the heat storage tank 50 may be used as the heat source of the evaporator 34. Therefore, the heat source shortage due to the stop of the microwave generator 11 does not occur.
  • Figure 4 is a view showing a first operating mode of a combined drying system according to a second embodiment of the present invention.
  • 5 is a view showing a second operation mode of the combined drying system according to the second embodiment of the present invention.
  • 6 is a view showing a coolant injection unit of a complex drying system according to a second embodiment of the present invention.
  • the complex drying system according to the second embodiment of the present invention sprays a part of the high temperature cooling water stored in the heat storage tank 50 on the surface of the evaporator 34 of the heat pump 30.
  • a coolant injection unit 100 is different from the first embodiment and the rest of the configuration and operation is similar to the first embodiment, it will be described in detail with respect to different points and the same reference numerals for similar components In this case, detailed descriptions of similar configurations and operations are omitted.
  • the coolant injection unit 100 includes a coolant bypass passage 101, a coolant injection nozzle 102, and a coolant bypass valve 103.
  • the cooling water bypass flow passage 101 is branched from a heat dissipation flow passage 53 connecting the heat storage tank 50 and the evaporator 34 so that at least a portion of the high temperature cooling water from the heat storage tank 50 is separated into the evaporator ( 34) to the outside.
  • the evaporator 34, the refrigerant passage 35 and the heat dissipation passage 53 through which the refrigerant circulating the heat pump 30 is composed of a double pipe is a heat exchange between the refrigerant and the cooling water.
  • Hot air is supplied to the outer side of the evaporator 34 through the hot air recovery flow path 85 to exchange heat between the hot air, the refrigerant, and the cooling water.
  • the heat dissipation passage 53 exchanges the cooling water with the refrigerant while passing through the evaporator 34, while the cooling water bypass passage 101 is inserted into the hot air recovery passage 85.
  • the cooling water injection nozzle 102 is disposed in the hot air recovery flow path 85 to inject the cooling water toward the evaporator 34.
  • the cooling water injection nozzle 102 is provided at the end of the cooling water bypass flow path 101, and sprays the high temperature cooling water introduced into the cooling water bypass flow path 101 toward the surface of the evaporator 34.
  • the coolant bypass valve 103 is provided in the coolant bypass flow path 101 to control the opening and closing of the coolant bypass flow path 101.
  • the heat dissipation passage 53 is provided with a heat dissipation valve 53b for controlling the opening and closing of the heat dissipation passage 53.
  • the heat storage tank circulation passage 54 further includes a cooling water additional supply unit 110 to replenish the amount of cooling water circulated from the evaporator 34 to the heat storage tank 50.
  • a cooling water additional supply unit 110 to replenish the amount of cooling water circulated from the evaporator 34 to the heat storage tank 50.
  • the additional coolant supply unit 110 is an additional supply flow path for supplying coolant from the outside, and the coolant supplement supply unit 110 is provided with a coolant supplement valve 111.
  • the high temperature coolant stored in the heat storage tank 50 is supplied into the evaporator 34 through the heat dissipation passage 53. do.
  • the coolant supplied to the coolant bypass flow path 101 is sprayed onto the surface of the evaporator 34 through the coolant spray nozzle 102.
  • the high temperature cooling water injected through the cooling water injection nozzle 102 serves to clean the surface of the evaporator 34, thereby improving heat exchange efficiency of the evaporator 34.
  • the cooling water replenishing valve 111 may be opened to refill the cooling water circulated to the heat storage tank 50 through the heat storage tank circulation passage 54.
  • the cooling water bypass valve 103 When the cooling water bypass valve 103 is shielded, the cooling water from the heat storage tank 50 is supplied to the inside of the evaporator 34 through the heat dissipation passage 53 and used for heat exchange. When the coolant bypass valve 103 is shielded, the coolant supplement valve 111 is also shielded. Opening / closing time and opening / closing time of the cooling water bypass valve 103 may include heat exchange efficiency of the evaporator 34, a flow path 87 connecting the hot air supply passage 84 or the evaporator 34 and the condenser 32. Can be controlled according to the temperature of hot air.

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Abstract

La présente invention concerne un système de séchage hybride qui stocke la chaleur d'un fluide de refroidissement qui a refroidi un générateur de micro-ondes dans un réservoir de stockage de chaleur, puis l'apporte à une pompe à chaleur et la fait rayonner, et ainsi, même même si le fonctionnement du générateur de micro-ondes est interrompu afin d'entrer, décharger et remplacer un objet à sécher, la chaleur stockée dans le réservoir de stockage de chaleur peut être apportée en continu en tant que source de chaleur d'un évaporateur, ce qui permet de garantir une source de chaleur stable. En outre, une partie d'un liquide de refroidissement à température élevée stocké dans le réservoir de stockage de chaleur est pulvérisée sur la surface de l'évaporateur, ce qui permet l'amélioration de l'efficacité d'échange de chaleur de l'évaporateur.
PCT/KR2016/005964 2015-08-21 2016-06-07 Système de séchage hybride WO2017034132A1 (fr)

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KR20150117970 2015-08-21
KR10-2015-0117970 2015-08-21
KR10-2016-0069288 2016-06-03
KR1020160069288A KR101693287B1 (ko) 2015-08-21 2016-06-03 복합 건조 시스템

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CN110410796A (zh) * 2019-08-20 2019-11-05 江西国科医药工程科技有限公司 工业废弃物处理系统及方法
US20200348078A1 (en) * 2018-01-16 2020-11-05 Waister As Modular System and Process of Drying Solids and Liquid-Solid Mixtures
CN112857018A (zh) * 2021-01-22 2021-05-28 同济大学 温/湿度场协同的多换热器热泵烘干系统及其控制方法
EP4147766A1 (fr) * 2021-09-09 2023-03-15 Glatt Gesellschaft mit beschränkter Haftung Dispositif de traitement des gaz de processus et procédé de traitement des gaz de processus

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KR102081416B1 (ko) * 2019-06-14 2020-02-25 농업회사법인주식회사팜텍 식품 건조용 제습기

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200348078A1 (en) * 2018-01-16 2020-11-05 Waister As Modular System and Process of Drying Solids and Liquid-Solid Mixtures
CN110410796A (zh) * 2019-08-20 2019-11-05 江西国科医药工程科技有限公司 工业废弃物处理系统及方法
CN112857018A (zh) * 2021-01-22 2021-05-28 同济大学 温/湿度场协同的多换热器热泵烘干系统及其控制方法
EP4147766A1 (fr) * 2021-09-09 2023-03-15 Glatt Gesellschaft mit beschränkter Haftung Dispositif de traitement des gaz de processus et procédé de traitement des gaz de processus

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