CN108826787B - Freezing and unfreezing integrated cabinet and freezing and unfreezing method adopting same - Google Patents
Freezing and unfreezing integrated cabinet and freezing and unfreezing method adopting same Download PDFInfo
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- CN108826787B CN108826787B CN201810806237.7A CN201810806237A CN108826787B CN 108826787 B CN108826787 B CN 108826787B CN 201810806237 A CN201810806237 A CN 201810806237A CN 108826787 B CN108826787 B CN 108826787B
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- 238000007710 freezing Methods 0.000 title claims abstract description 138
- 230000008014 freezing Effects 0.000 title claims abstract description 138
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000010257 thawing Methods 0.000 claims abstract description 92
- 235000013372 meat Nutrition 0.000 claims abstract description 33
- 238000004321 preservation Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 235000013305 food Nutrition 0.000 abstract description 29
- 239000000463 material Substances 0.000 abstract description 25
- 244000005700 microbiome Species 0.000 abstract description 3
- 238000005485 electric heating Methods 0.000 description 6
- 235000013622 meat product Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
- A23B4/00—Preservation of meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
- A23B4/07—Thawing subsequent to freezing
-
- A23L3/365—
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/067—Evaporator fan units
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/005—Charging, supporting, and discharging the articles to be cooled using containers
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
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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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a freezing and thawing integrated cabinet, which comprises a heat preservation box body and a closed container, wherein the heat preservation box body comprises a freezing chamber and a thawing chamber, box-type frames are fixed in the freezing chamber and the thawing chamber, closing plates are fixed on the upper part, the lower part, the front part and the back part of each frame, an air outlet channel plate and an air return channel plate are fixed on the left side and the right side of each frame, the closed container is in a flat shape and can be erected in the frames of the freezing chamber and the thawing chamber in a layering way, rows of heat conduction fins are welded or riveted on the upper surface and the lower surface of the closed container, one end of a channel formed by gaps between two adjacent rows of heat conduction fins is aligned with an air outlet hole of the air outlet channel plate, the other end of the channel is aligned with an air return hole of the air return channel plate, an air outlet hole is. The integrated cabinet disclosed by the invention has high freezing and thawing speeds, can effectively inhibit the propagation of microorganisms, better ensures the quality of food materials, and can greatly save energy. The invention also provides a method for freezing and unfreezing meat by adopting the integrated cabinet.
Description
Technical Field
The invention relates to the technical field of freezing and unfreezing of food, in particular to a freezing and unfreezing device for fresh and alive food materials, and more particularly relates to a freezing and unfreezing integrated cabinet for quickly freezing and quickly unfreezing the food materials by using heat and cold exchange. The invention also relates to a method for freezing and unfreezing meat by using the integrated cabinet.
Background
Freezing is a process of freezing liquid water in food such as fish and meat into solid state by a low temperature method, which is a safe and healthy preservation method, can effectively inhibit the growth and reproduction of microorganisms in the food, prevent the food from deteriorating, and simultaneously easily restore the original state. Thawing is the reverse process of freezing and is the process of melting ice crystals formed during freezing into water. In daily life, in order to prolong the storage time of fresh food materials, the fresh food materials are generally stored in a freezing warehouse or a freezing cabinet of a household refrigerator, the freezing temperature of the existing freezing warehouse or the freezing cabinet of the household refrigerator is generally set to be minus 16 ℃, the food materials can be stored for more than 3 months, the storage time of the food materials is generally from several days to more than ten days for the food industry or families, the arrangement wastes energy, and the food materials need to be thawed for a long time when being cooked; in addition, the existing refrigerating device (particularly a cold storage) and unfreezing device (usually located in a kitchen) are not arranged in the same place generally and are far away from each other, so that the time for transferring food materials in the middle is long, and the probability of pollution of the food materials is increased; in addition, in the conventional freezing and thawing device, in the process of freezing and thawing the food materials, the freezing device and the thawing device only cool or heat the whole space where the food materials are located, and energy exchange is not directly applied to local areas where the food materials are located, so that the freezing and thawing effects are poor.
Disclosure of Invention
In order to overcome the problems, the invention aims to provide a freezing and thawing integrated cabinet, which not only has high freezing and thawing speed, but also has convenient access to food materials frozen and thawed by the integrated cabinet, can avoid nutrient loss and air pollution, and better ensures the quality of the food materials.
Another object of the present invention is to provide a method for freezing and thawing meat using the above-described integrated cabinet.
In order to achieve the purpose, the freezing and thawing integrated cabinet comprises a heat preservation box body, wherein the heat preservation box body is divided into a left independent space and a right independent space, one independent space is a freezing chamber, the other independent space is a thawing chamber, and the freezing chamber and the thawing chamber are respectively sealed by heat preservation doors; box-type frames are fixed in the freezing chamber and the thawing chamber, sealing plates are fixed above, below, in front of and behind the frames, an air outlet channel plate and an air return channel plate are fixed on the left side and the right side of the frames, an air outlet hole is formed in the air outlet channel plate, an air return hole is formed in the air return channel plate, a cold air generating device is arranged at the bottom of the frame in the freezing chamber, and a cold and hot air generating device is arranged at the bottom of the frame in the thawing chamber; the integrated cabinet also comprises a plurality of closed containers, the closed containers are flat and can be erected in a frame of the freezing chamber or the thawing chamber in a layered mode, rows of heat-conducting fins are welded or riveted on the upper surface and the lower surface of each closed container, one end of a channel formed by gaps between every two adjacent rows of heat-conducting fins is aligned with an air outlet hole of the corresponding air outlet channel plate, the other end of the channel is aligned with an air return hole of the corresponding air return channel plate, and front sealing plates of the frame of the freezing chamber and the thawing chamber are provided with an inlet and an outlet of each closed container; the cold air generating device comprises a first evaporator and a first forced convection fan, wherein the first evaporator is electrically connected with a first refrigerating unit which is arranged at the lower part of the freezing chamber and is positioned outside the freezing chamber; the cold and hot airflow generating device comprises a second evaporator, an electric heater and a second forced convection fan, wherein the second evaporator is electrically connected with a second refrigerating unit which is arranged at the lower part of the thawing chamber and is positioned outside the thawing chamber; the left and right side edges of the upper frame sealing plate in the freezing chamber extend to be connected with the left and right side walls of the freezing chamber, and the front and rear side edges of the lower frame sealing plate extend to be connected with the front and rear side walls of the freezing chamber, so that an area where a cold air generating device is located, an air outlet of an air outlet air duct plate, an area where a closed container is located and an air outlet of a return air duct form an independent cold air circulating duct in the freezing chamber; the left and right sides of the upper frame sealing plate in the thawing chamber extend to be connected with the left and right side walls of the thawing chamber, and the front and rear sides of the lower sealing plate extend to be connected with the front and rear side walls of the thawing chamber, so that the region where the cold and hot airflow generating device is located, the air outlet of the air outlet air duct plate, the region where the closed container is located and the air outlet of the return air duct plate form an independent cold and hot airflow circulating channel in the thawing chamber.
The closed container is composed of two half shells with symmetrical upper and lower structures, the half shells are made of food-grade stainless steel, one side edges of the upper shell and the lower shell are hinged to form a cover lifting structure, and the height of the closed container is preferably 30mm-100 mm.
In order to further improve the heat conduction effect of the closed container, the heat conduction fins welded or riveted on the upper surface and the lower surface of the closed container are S-shaped along the length direction or the side surfaces of the heat conduction fins are provided with through holes.
In order to increase the heat transfer area between the side wall of the closed container and food materials, the upper side wall and the lower side wall of the closed container are provided with rows of grooves, the grooves and the heat-conducting fins are arranged alternately, and the cross sections of the grooves are V-shaped.
The freezing chamber also comprises a first temperature controller with a microcomputer processing function, and the first temperature controller is positioned in a first control chamber at the lower part of the freezing chamber and is electrically connected with the first forced convection fan and the first refrigerating unit; the thawing chamber also comprises a second temperature controller with a microcomputer processing function, and the second temperature controller is positioned in a second control chamber at the lower part of the thawing chamber and is electrically connected with a second forced convection fan, an electric heating machine and a second refrigerating unit; the front side surfaces of the first control room and the second control room are respectively provided with a control panel and a temperature display window.
In order to monitor the temperature of the air flow passing through the surface of the closed container in the freezing chamber or the thawing chamber in time, the air outlet of the air outlet duct plate of the freezing chamber or the thawing chamber is provided with a temperature sensor, and the temperature sensor is connected with a corresponding temperature controller of the freezing chamber or the thawing chamber.
In order to facilitate the closed container to enter and exit the freezing chamber or the unfreezing chamber, the closed container is erected on the inner side walls of the air outlet channel plate and the air return channel plate of the freezing chamber or the unfreezing chamber through the guide rail assembly, the outer side walls of the air outlet channel plate and the air return channel plate corresponding to the guide rail assembly are provided with fixing blocks, and the fixing blocks are fixed on the left side wall and the right side wall of the freezing chamber or the unfreezing chamber through screws.
The guide rail assembly is composed of a fixed guide rail, a movable guide rail and a guide rail hanging plate, the fixed guide rail is arranged on the inner side wall of the air outlet channel plate and the inner side wall of the air return channel plate, the guide rail hanging plate is fixed on the side wall of the closed container, and the guide rail hanging plate achieves sliding on the fixed guide rail through the movable guide rail.
In order to facilitate the movement of the integrated cabinet, the bottom parts of the first control chamber and the second control chamber are provided with supporting legs.
The invention also provides a method for freezing and unfreezing meat by using the freezing and unfreezing integrated cabinet, which sequentially comprises the following steps:
(1) squeezing fresh meat with tool or naturally to thickness same as the height of the sealed container, spreading and placing in the sealed container, closing the upper cover of the sealed container, pushing the sealed container into the freezing chamber of the integrated cabinet, and closing the heat-insulating door of the freezing chamber;
(2) the power supply of the freezing chamber of the integrated cabinet is switched on, a cold air generating device positioned at the lower part of the freezing chamber starts to work, cold air generated by a first refrigerating unit and a first evaporator circulates in an independent cold air circulating channel in the freezing chamber through a first forced convection fan, the temperature of the cold air passing through the surface of the closed container and the heat-conducting fins is controlled to be kept between-8 ℃ and-6 ℃, and the meat is frozen;
(3) switching on a power supply of a thawing chamber of the integrated cabinet, starting a cold and hot air flow generating device positioned at the lower part of the thawing chamber to work, circulating cold air generated by a second refrigerating unit and a second evaporator or hot air generated by an electric heater in an independent cold and hot air circulation loop in the thawing chamber through a second forced convection fan, opening a heat preservation door of the freezing chamber and the thawing chamber when the temperature displayed on a control panel of the thawing chamber is below 6 ℃ and above 1 ℃, taking out a frozen closed container filled with meat, rapidly pushing the container into the heat preservation chamber, and closing the heat preservation doors of the freezing chamber and the heat preservation chamber;
(4) and after the hot and cold air flow in a certain temperature range exchanges heat with the surface of the closed container and the heat conduction fin through the air outlet hole of the air outlet channel plate of the unfreezing chamber, the hot and cold air flow returns to the hot and cold air flow generating device through the air return hole of the air return channel plate to be heated or cooled, and when the temperature displayed on the control panel of the unfreezing chamber is kept in a constant range of 1-6 ℃ for 20-30 minutes, the unfreezing process is finished, and the meat is taken out.
The control of the cold air temperature in the freezing chamber and the cold and hot air flow temperature in the thawing chamber is realized by adjusting the air supply amount and the air supply speed of the cold air generating device or the cold and hot air flow generating device by the corresponding temperature controllers according to the temperature of the air outlets of the corresponding air outlet channel plates.
Compared with the prior art, the freezing and unfreezing integrated cabinet and the method for freezing and unfreezing the meat by adopting the same have the following advantages:
(1) the frame capable of erecting the same-structure closed container is arranged in the freezing chamber and the thawing chamber, the closed container is flat, the shell is made of food-grade stainless steel, the upper surface and the lower surface of the closed container are welded or riveted with heat conduction fins, the plane where the heat conduction fins are located is perpendicular to the plane where the ventilation openings are located and is consistent with the air flow direction of the inlet and the outlet of the ventilation openings, food materials are placed in the closed container and are tightly attached to the inner side wall of the container, the upper surface and the lower surface of the closed container and the heat conduction fins are subjected to heat exchange by utilizing cooled or heated air, the heat exchange area of cold air or hot air and the container shell can be greatly increased, and the efficiency and the speed of freezing or thawing of the.
(2) In the process of transferring the food materials from the freezing chamber to the unfreezing chamber, the meat is not required to be taken out by opening the closed container, the closed container filled with the food materials is only required to be transferred together, the original state of the food materials is kept, the time for transferring the frozen food materials to the unfreezing chamber is shortened, and the possibility of polluting the food materials is avoided.
(3) The whole process from freezing to unfreezing is stored in the closed container, and the food material is tightly attached to the inner side wall of the closed container, so that the nutrition of the food material is prevented from losing.
(4) Because of adopting forced air flow heat exchange, the freezing and unfreezing of the meat products are more uniform, and the quality of the meat products is further ensured.
(5) Because the thawing is carried out by utilizing the heat transfer mode of the container shell and the meat product, the huge energy which causes the molecular change of the meat product and is generated by a microwave thawing method is avoided, and harmful substances are not generated.
(6) The freezing and thawing method of the invention cuts the meat into the thickness equal to the height of the closed container, leads the periphery of the meat to be closely contacted with the inner wall of the closed container, sets the freezing temperature between 8 ℃ below zero and 6 ℃ below zero, controls the thawing temperature within the range of 1 ℃ to 6 ℃, can effectively inhibit the propagation of microorganisms, better ensures the quality of the meat, and can greatly save energy.
Drawings
FIG. 1 is a schematic view showing the structure of the freezing and thawing integrated cabinet for meat according to the present invention.
Fig. 2 is a right side view of the integrated cabinet of fig. 1.
Fig. 3 is a left side view of the integrated cabinet of fig. 1.
FIG. 4 is a schematic view showing the structure of the thawing chamber when the thermal insulating door is opened and the hermetic container is slid out from the guide rail and the cover is lifted.
Fig. 5 is a sectional view taken along a-a of fig. 1.
Fig. 6 is a sectional view taken along the direction B-B of fig. 1.
Fig. 7 is a sectional view taken along the direction C-C of fig. 1.
Fig. 8 is a schematic structural view of a track assembly.
Fig. 9 is an enlarged view of the region L of fig. 1.
Fig. 10 is an enlarged view of the region M of fig. 2.
Fig. 11 is an enlarged view of the region N of fig. 3.
Fig. 12 is an enlarged view of the region O of fig. 5.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the freezing and thawing integrated cabinet of the invention comprises a heat preservation box body, wherein the heat preservation box body is divided into a left independent space and a right independent space, one independent space is a freezing chamber 1, the other independent space is a thawing chamber 2, the freezing chamber and the thawing chamber are respectively sealed by heat preservation doors 10 and 20, and box-type frames are fixed on the freezing chamber and the thawing chamber;
an air outlet duct plate 11 and an air return duct plate 12 are fixed on the left side and the right side of a freezing chamber frame, sealing plates 13, 14, 15 and 16 are fixed on the upper side, the lower side, the front side and the rear side of the freezing chamber frame, an air outlet hole 111 is formed in the air outlet duct plate, an air return hole (not marked in the figure) corresponding to the position of the air outlet hole is formed in the air return duct plate, the left side and the right side of the upper sealing plate extend and are fixed on the left side wall and the right side wall of a freezing chamber, the front side and the rear side of the lower sealing plate extend and are fixed on the front side wall and the rear side wall of the freezing chamber, vertical sealing plates 141 and 142 connected with; an air outlet duct plate 21 and an air return duct plate 22 are fixed on the left side and the right side of the thawing chamber frame, sealing plates 23, 24, 25 and 26 are fixed on the upper side, the lower side, the front side and the rear side of the thawing chamber frame, the air outlet duct plate is provided with an air outlet hole 211, the air return duct plate is provided with an air return hole (not marked in the figure) corresponding to the air outlet hole, the left side and the right side of the upper sealing plate extend and are fixed on the left side wall and the right side wall of the thawing chamber, vertical sealing plates 241 and 242 connected with the left side wall and the right side wall of the thawing chamber are arranged between the lower sealing plate and the bottom wall of the thawing chamber, and an independent air 27 capable of containing a cold and hot air flow generating device is defined by the lower sealing;
as shown in fig. 7, the closed vessel 3 which can be erected in the freezing chamber and thawing chamber frames is a flat box body having a thickness of 30-100mm, the box body is composed of two half shells with symmetrical upper and lower structures, the half shells are made of food-grade stainless steel, one side edges of the upper shell and the lower shell are hinged to form a cover-lifting structure, rows of heat-conducting fins 31 (the fins are made of copper and aluminum with higher heat conductivity coefficients, the fins in the figure of the embodiment are in a straight-plate shape, if the heat conductivity coefficients of the fins are further improved, the fins can be made into an S shape or provided with through holes), rows of strip-shaped grooves 32 are formed on the upper and lower surfaces of the closed container, the strip-shaped grooves and the heat-conducting fins are arranged alternately, and the cross sections of the grooves are in a V shape to form barbs so as to increase the heat-conducting area of the closed container and the food materials; the frame front sealing plate of the freezing chamber and the thawing chamber is provided with an inlet and an outlet of a closed container, the closed container is erected on the inner side walls of an air outlet channel plate and a air return channel plate through a guide rail component 4, the guide rail component is composed of a fixed guide rail 41, a movable guide rail 42 and a guide rail hanging plate 43, the left end and the right end of the closed container are respectively welded with the left guide rail hanging plate and the right guide rail hanging plate, the guide rail hanging plate is supported by a front lower wheel 421, a middle lower wheel 422 and a rear lower wheel 423 on the movable guide rail and limited by a rear upper wheel 426, a middle upper wheel 425 and a front upper wheel 424 and can slide on the movable guide rail, the movable guide rail can slide on the fixed guide rail by utilizing the rear upper wheel, the middle lower wheel and the front lower wheel, the front limiting block 411 and the rear limiting block 412 limit the moving distance of the movable guide rail on the fixed guide rail, the fixed guide rail penetrates through the air outlet channel plate and, so that the closed container can be conveniently slid in and out of the frame of the freezing chamber or the thawing chamber, as shown in fig. 8 and 9; one end of a channel 33 formed by a gap between two adjacent rows of heat conducting fins on the upper surface and the lower surface of the closed container is aligned with an air outlet hole 111 or 211 of the air outlet duct plate, and the other end of the channel is aligned with a return air hole of the return air duct plate, as shown in fig. 10, 11 and 12;
as shown in fig. 6, the cold air generating device includes a first evaporator 61 and a first forced convection fan 71, the first evaporator is electrically connected to a first refrigerating unit 81 disposed at the lower part of the freezing chamber and located outside the freezing chamber, the first evaporator is fixed on the vertical sealing plates 141, 142, the first evaporator in the independent space is cooled by the air and then blown to the air outlet of the air outlet channel plate by the forced convection fan, and the cold air exchanges heat with the surface of the closed container and the heat-conducting fins thereof through the air outlet and then returns to the chamber where the cold air generating device is located through the air return hole of the air return channel plate, thereby forming a cycle; the freezing chamber is also provided with a temperature controller 91 with a microcomputer processing function, the temperature controller is positioned in a control chamber at the lower part of the freezing chamber, is electrically connected with the first forced convection fan and the first refrigerating unit, and is also electrically connected with a temperature sensor arranged at an air outlet of the air outlet duct plate; the cold and hot airflow generating device comprises a second evaporator 62, an electric heater 90 and a second forced convection fan 72, the second evaporator is electrically connected with a refrigerating unit 82 which is arranged at the lower part of the thawing chamber and is positioned outside the thawing chamber, the second evaporator and the electric heating pipe are fixed on vertical sealing plates 241 and 242, the electric heating pipe and the second evaporator which are positioned in independent spaces blow air to an air outlet hole of an air outlet channel plate by the forced convection fan after heating or cooling the air, and the cold and hot airflow returns to a cavity where the cold and hot airflow generating device is positioned through an air return hole of the air return channel plate after carrying out heat exchange with the surface of the closed container and a heat conduction fin thereof through the air outlet hole to form a circulation; the thawing chamber is also provided with a second temperature controller 92 with a microcomputer processing function, the temperature controller is positioned in a control chamber at the lower part of the thawing chamber, is electrically connected with a second forced convection fan, an electric heating pipe and a second refrigerating unit, and is also electrically connected with a temperature sensor arranged at the air outlet of the air outlet duct plate; the front side of the integrated cabinet at the lower part of the insulation box body is provided with a control panel 18, a temperature display window 19 of an air outlet of the air outlet duct plate of the freezing chamber and a temperature display window 29 of an air outlet of the air outlet duct plate of the thawing chamber.
Note: the evaporator 7 is a refrigerating part of a refrigerating system, and its refrigerating principle is that refrigerant evaporates in its interior to absorb heat while taking away heat energy of its surrounding air to cool its surrounding air.
The freezing and thawing integrated cabinet of the invention senses the temperature of the air outlet duct plate by a temperature sensor and transmits the temperature to a microcomputer of a temperature controller for processing, and the temperature controller controls the on-off of a refrigerating unit, an evaporator, an electric heating pipe and a forced convection fan to ensure that the temperature on the surface of a sealed container of a freezing chamber is between-8 ℃ and-6 ℃, so as to freeze fresh meat, ensure that the temperature on the surface of the thawed sealed container is below 6 ℃ and above 1 ℃, and thaw frozen meat.
When the freezing chamber of the integrated cabinet is used for freezing the fresh meat, the fresh meat 50 is extruded by a tool or naturally to have the same thickness as the height of the closed container, is flatly placed in the closed container, closing an upper cover of the closed container, pushing the closed container into a freezing chamber of the integrated cabinet, closing a heat-insulating door of the freezing chamber, switching on a power supply of the freezing chamber, starting a cold air generating device positioned at the lower part of the freezing chamber, circulating cold air generated by a first refrigerating unit and a first evaporator in an independent cold air circulating channel in the freezing chamber through a first forced convection fan, and adjusting the refrigerating capacity of the first refrigerating unit and the speed of the first forced convection fan in time by a first temperature controller according to the temperature detected by an air outlet channel plate temperature sensor to enable the temperature of the cold air passing through the surface of the closed container and a heat conduction fin to be-8 ℃ to-6 ℃ so as to freeze meat; when the thawing chamber is utilized for thawing, the cold and hot air flow generating device positioned at the lower part of the thawing chamber starts to work, the cold air generated by the second refrigerating unit and the second evaporator or the hot air generated by the electric heater circulates in the independent cold and hot air circulation channel in the thawing chamber through the second forced convection fan, when the temperature displayed on the control panel of the thawing chamber is below 6 ℃ and above 1 ℃, the heat preservation door of the freezing chamber and the thawing chamber is opened at the same time, the closed container which is filled with meat and is frozen is taken out and is rapidly pushed into the heat preservation chamber, the heat preservation door of the freezing chamber and the thawing chamber is closed, at the moment, the air with a certain temperature range (1-6 ℃) is sent to the air outlet of the air outlet air duct plate through the second forced convection fan and is blown to the fins on the closed container and the upper and lower surfaces of the closed container for heat exchange, and the upper and lower surfaces of the closed container are tightly attached to the meat to further thaw, at this time, the air after heat exchange is changed into air with lower temperature, and the air is sucked by the forced convection fan through the return air inlet on the return air duct plate (if the air temperature near the air outlet is lower than 1 ℃, the electric heating pipe enters a working state, and if the air near the air outlet is higher than 6 ℃, the refrigerating unit and the evaporator enter a working state), and the air is sent to the air outlet on the air outlet duct plate again, so that a heat exchange circulation process is formed. After a certain time interval, the unfreezing process is finished, and the meat can be taken out for use.
The freezing chamber and the unfreezing chamber of the integrated cabinet are relatively independent, freezing and unfreezing can be independently carried out, the meat to be unfrozen can be the meat frozen by the freezing chamber of the integrated cabinet, and can also be the meat frozen by other household freezers or freezers, and the meat frozen by other household freezers or freezers needs to be firstly cut into the thickness the same as the height of the closed container, is flatly laid in the closed container, and then is placed in the unfreezing chamber for unfreezing.
Claims (9)
1. The utility model provides a freezing and integrative cabinet that unfreezes which characterized in that: the integrated cabinet comprises a heat preservation box body, the heat preservation box body is divided into a left independent space and a right independent space, one independent space is a freezing chamber, the other independent space is a thawing chamber, and the freezing chamber and the thawing chamber are respectively sealed by heat preservation doors; box-type frames are fixed in the freezing chamber and the thawing chamber, sealing plates are fixed above, below, in front of and behind the frames, an air outlet channel plate and an air return channel plate are fixed on the left side and the right side of the frames, an air outlet hole is formed in the air outlet channel plate, an air return hole is formed in the air return channel plate, a cold air generating device is arranged at the bottom of the frame in the freezing chamber, and a cold and hot air generating device is arranged at the lower part of the frame in the thawing; the integrated cabinet also comprises a plurality of closed containers, the closed containers are flat, the shells of the closed containers are made of food-grade stainless steel, the closed containers are arranged on the inner side walls of an air outlet channel plate and an air return channel plate of a freezing chamber or a thawing chamber in a layered mode through guide rail assemblies, rows of heat conduction fins are welded or riveted on the upper surface and the lower surface of each closed container, one end of a channel formed by gaps between every two adjacent rows of the heat conduction fins is aligned with an air outlet hole of the corresponding air outlet channel plate, the other end of the channel is aligned with an air return hole of the corresponding air return channel plate, and the frame front sealing plates of the freezing chamber and the thawing; the cold air generating device comprises a first evaporator and a first forced convection fan, wherein the first evaporator is electrically connected with a first refrigerating unit which is arranged at the lower part of the freezing chamber and is positioned outside the freezing chamber; the cold and hot airflow generating device comprises a second evaporator, an electric heater and a second forced convection fan, wherein the second evaporator is electrically connected with a second refrigerating unit which is arranged at the lower part of the thawing chamber and is positioned outside the thawing chamber; the left and right side edges of the upper frame sealing plate in the freezing chamber extend to be connected with the left and right side walls of the freezing chamber, and the front and rear side edges of the lower frame sealing plate extend to be connected with the front and rear side walls of the freezing chamber, so that an area where the cold air generating device is located, an air outlet hole of the air outlet channel plate, an area where the closed container is located and an air return hole of the air return channel plate form an independent cold air circulating channel in the freezing chamber; the left and right sides of the upper frame sealing plate in the unfreezing chamber extend to be connected with the left and right side walls of the unfreezing chamber, the front and back sides of the lower sealing plate extend to be connected with the front and back side walls of the unfreezing chamber, and the region where the cold and hot airflow generating device is located, the air outlet hole of the air outlet channel plate, the region where the closed container is located and the air return hole of the air return channel plate form an independent cold and hot airflow circulating channel in the unfreezing chamber.
2. The integrated freezing and thawing cabinet according to claim 1, wherein: the closed container is composed of two half shells with symmetrical upper and lower structures, one side edge of the upper shell is hinged with one side edge of the lower shell to form a cover lifting structure, and the height of the closed container is 30mm-100 mm.
3. The freezing and thawing integrated cabinet according to claim 1 or 2, wherein: the heat conduction fin welded or riveted on the upper surface and the lower surface of the closed container is S-shaped along the length direction, or the side surface of the heat conduction fin is provided with a through hole.
4. The freezing and thawing integrated cabinet according to claim 3, wherein: the freezing chamber also comprises a first temperature controller with a microcomputer processing function, and the first temperature controller is positioned in a first control chamber at the lower part of the freezing chamber and is electrically connected with the first forced convection fan and the first refrigerating unit; the thawing chamber also comprises a second temperature controller with a microcomputer processing function, and the second temperature controller is positioned in a second control chamber at the lower part of the thawing chamber and is electrically connected with a second forced convection fan, an electric heater and a second refrigerating unit; the front side surfaces of the first control room and the second control room are respectively provided with a control panel and a temperature display window.
5. The freezing and thawing integrated cabinet according to claim 4, wherein: and an air outlet hole of the air outlet channel plate of the freezing chamber or the thawing chamber is provided with a temperature sensor, and the temperature sensor is connected with a corresponding temperature controller of the freezing chamber or the thawing chamber.
6. The integrated freezing and thawing cabinet according to claim 5, wherein: the guide rail assembly is characterized in that fixed blocks are arranged on the outer side walls of the air outlet channel plate and the air return channel plate corresponding to the guide rail assembly in position, and the fixed blocks are fixed on the left side wall and the right side wall of the freezing chamber or the unfreezing chamber through screws.
7. The integrated freezing and thawing cabinet according to claim 6, wherein: the guide rail assembly is composed of a fixed guide rail, a movable guide rail and a guide rail hanging plate, the fixed guide rail is arranged on the inner side wall of the air outlet channel plate and the inner side wall of the air return channel plate, the guide rail hanging plate is fixed on the side wall of the closed container, and the guide rail hanging plate achieves sliding on the fixed guide rail through the movable guide rail.
8. A method for freezing and thawing meat using the integrated freezing and thawing cabinet according to any of claims 1 to 7, comprising the following steps in sequence:
(1) squeezing fresh meat with tool or naturally to thickness same as the height of the sealed container, spreading and placing in the sealed container, closing the upper cover of the sealed container, pushing the sealed container into the freezing chamber of the integrated cabinet, and closing the heat-insulating door of the freezing chamber;
(2) the power supply of the freezing chamber of the integrated cabinet is switched on, a cold air generating device positioned at the lower part of the freezing chamber starts to work, cold air generated by a first refrigerating unit and a first evaporator circulates in an independent cold air circulating channel in the freezing chamber through a first forced convection fan, the temperature of the cold air passing through the surface of the closed container and the heat-conducting fins is controlled to be kept between-8 ℃ and-6 ℃, and the meat is frozen;
(3) the power supply of the unfreezing chamber of the integrated cabinet is switched on, the cold and hot airflow generating device positioned at the lower part of the unfreezing chamber starts to work, cold air generated by a second refrigerating unit and a second evaporator or hot air generated by an electric heater circulates in an independent cold and hot airflow circulating channel in the unfreezing chamber through a second forced convection fan, when the temperature displayed on a control panel of the unfreezing chamber is below 6 ℃ and above 1 ℃, a heat-preserving door of the freezing chamber and the unfreezing chamber is opened, a closed container which is filled with meat and is frozen is taken out of the freezing chamber and is rapidly pushed into the unfreezing chamber, and the heat-preserving door of the freezing chamber and the unfreezing;
(4) and after the hot and cold air flow in a certain temperature range exchanges heat with the surface of the closed container and the heat conduction fin through the air outlet hole of the air outlet channel plate of the unfreezing chamber, the hot and cold air flow returns to the hot and cold air flow generating device through the air return hole of the air return channel plate to be heated or cooled, and when the temperature displayed on the control panel of the unfreezing chamber is kept in a constant range of 1-6 ℃ for 20-30 minutes, the unfreezing process is finished, and the meat is taken out.
9. The method of freezing and thawing meat according to claim 8, wherein: the temperature control of the cold air of the freezing chamber and the cold and hot air flow of the thawing chamber is realized by adjusting the air supply quantity and the air supply speed of the cold air generating device or the cold and hot air flow generating device by the corresponding temperature controller according to the temperature of the air outlet hole of the corresponding air outlet channel plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810806237.7A CN108826787B (en) | 2018-07-20 | 2018-07-20 | Freezing and unfreezing integrated cabinet and freezing and unfreezing method adopting same |
| PCT/CN2018/000337 WO2020014801A1 (en) | 2018-07-20 | 2018-09-21 | Integrated freezing and thawing cabinet, and method for using integrated cabinet to freeze and thaw meat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810806237.7A CN108826787B (en) | 2018-07-20 | 2018-07-20 | Freezing and unfreezing integrated cabinet and freezing and unfreezing method adopting same |
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| Publication Number | Publication Date |
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| CN108826787A CN108826787A (en) | 2018-11-16 |
| CN108826787B true CN108826787B (en) | 2020-05-12 |
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| CN201810806237.7A Active CN108826787B (en) | 2018-07-20 | 2018-07-20 | Freezing and unfreezing integrated cabinet and freezing and unfreezing method adopting same |
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| Country | Link |
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| CN (1) | CN108826787B (en) |
| WO (1) | WO2020014801A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826786B (en) * | 2018-07-20 | 2023-06-23 | 汕头市金山厨房酒店用品有限公司 | Efficient thawing cabinet for frozen food and thawing method using same |
| CN111609613A (en) * | 2019-02-26 | 2020-09-01 | 青岛海尔股份有限公司 | Refrigerator with blower fan located at transverse side upstream of evaporator |
| CN111609619B (en) * | 2019-02-26 | 2021-09-21 | 青岛海尔电冰箱有限公司 | Refrigerator with air return openings formed in two side walls of refrigerator body |
| CN109916125A (en) * | 2019-03-21 | 2019-06-21 | 合肥华凌股份有限公司 | Refrigeration equipment and its quick-frozen control method |
| CN109924249A (en) * | 2019-05-05 | 2019-06-25 | 绍兴市祥泰丰食品有限公司 | A kind of bored thawing apparatus of meat |
| CN111947373B (en) * | 2019-05-14 | 2022-11-04 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN111947374B (en) * | 2019-05-14 | 2022-11-04 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN111947368B (en) * | 2019-05-14 | 2022-04-29 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN112042729A (en) * | 2020-09-26 | 2020-12-08 | 萧县徐老三食品有限公司 | Quick thawing equipment for meat frozen food |
| CN112577269A (en) * | 2020-12-17 | 2021-03-30 | 上海鳌珍仪器制造有限公司 | Safe, interference-free and explosion-proof precise oven |
| CN113379963A (en) * | 2021-05-18 | 2021-09-10 | 安庆咖来菲去物联网科技有限公司 | Control method and device of vending machine and vending machine |
| CN114304246B (en) * | 2021-11-29 | 2024-05-07 | 新疆农垦科学院 | Breathing type pressure-assisted shallow freezing and thawing integrated equipment and application method thereof |
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| CN108826787A (en) | 2018-11-16 |
| WO2020014801A1 (en) | 2020-01-23 |
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