CN114001521A - Flexible and efficient freezing and re-melting device and freezing and re-melting method thereof - Google Patents
Flexible and efficient freezing and re-melting device and freezing and re-melting method thereof Download PDFInfo
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- CN114001521A CN114001521A CN202111469666.8A CN202111469666A CN114001521A CN 114001521 A CN114001521 A CN 114001521A CN 202111469666 A CN202111469666 A CN 202111469666A CN 114001521 A CN114001521 A CN 114001521A
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- 238000002844 melting Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 18
- 238000010257 thawing Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 13
- 238000001816 cooling Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000005138 cryopreservation Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 5
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- 238000010309 melting process Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
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- 229910052710 silicon Inorganic materials 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 230000005484 gravity Effects 0.000 description 1
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- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
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- 229920002545 silicone oil Polymers 0.000 description 1
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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
- F25D31/00—Other cooling or freezing apparatus
- F25D31/005—Combined cooling and heating devices
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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
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- 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
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
-
- 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
- F25D29/005—Mounting of control 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
- F25D2600/00—Control issues
- F25D2600/04—Controlling heat transfer
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
Abstract
The invention relates to a flexible and efficient freezing and re-melting device and a freezing and re-melting method thereof, and the device comprises a freezing and re-melting chamber, wherein a heat exchange plate is arranged in the freezing and re-melting chamber, the heat exchange plate comprises a porous heat exchange plate and a non-porous heat exchange plate, a plurality of air holes are formed in the surface of the porous heat exchange plate, and the porous heat exchange plate and the non-porous heat exchange plate can be detachably arranged in the freezing and re-melting chamber; the refrigerating and re-melting mechanism comprises a refrigerator and a medium distributor, a heater and a circulating pump are arranged between the refrigerator and the medium distributor, a plurality of distribution pipelines are arranged on the medium distributor, each distribution pipeline is communicated with a cavity of a porous heat exchange plate or a non-porous heat exchange plate, the refrigerating and re-melting chamber is connected with the refrigerator through a first circulating pipe, and the cavity of the non-porous heat exchange plate is connected with the refrigerator through a second circulating pipe. The invention can be used for batch freezing of articles with various sizes and shapes, can also simultaneously freeze articles with various sizes and shapes, has a re-melting function, and meets the re-melting requirement of partially frozen articles.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a flexible and efficient refrigeration re-melting device and a refrigeration re-melting method thereof.
Background
Many biological products, foods, chemicals are stored frozen to maintain their product function and extend their useful life. In the market, an ultra-low temperature refrigerator is usually directly used as a refrigerating device, and a program cooling instrument device is also used, but the devices do not have the heating and thawing functions. Program-cooled instruments are usually cooled by liquid nitrogen or a compressor, and a fan is arranged in a freezing chamber to promote cold air circulation and accelerate cooling of articles. However, the problems of nonuniform temperature distribution in the chamber and inconsistent cooling rates of articles at different positions exist in the freezing process, so that the quality of the same batch of products after being frozen is different, and the quality control and evaluation challenges are caused. There is also a risk of injury to the operator from the liquid nitrogen in the manner in which the liquid nitrogen is passed directly into the freezing chamber. The direct introduction of heat transfer medium into the freezing chamber also presents the problem of high energy consumption.
There are also devices in the market which adopt multi-layer flat plate contact type heat transfer and refrigerate and heat by circulating silicon oil in the flat plate, although the temperature distribution uniformity is improved by the flat plate heat transfer, the devices require that the product to be frozen and re-melted is in good contact with the flat plate device, otherwise, the heat transfer efficiency is very poor, and the devices cannot adapt to diversified freezing containers and sizes. At the same time, the circulating silicone oil also presents the risk of leaks in the chamber and contamination of the product.
CN201822204088.5 discloses an independent refrigerating unit of refrigerator car with uniform heat dissipation, a plurality of air holes are arranged on a fixing plate at the bottom of the refrigerator, and cold air is sprayed out from the air holes to refrigerate objects placed on the fixing plate. The refrigeration mode improves the uniformity of refrigeration to a certain extent, but the equipment does not have a re-melting function, and the fixing plates are fixedly arranged, so that the quantity of the fixing plates cannot be flexibly adjusted according to the shape and the size of the article, and the articles with different sizes are difficult to be simultaneously frozen.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flexible and efficient freezing and re-melting device and a freezing and re-melting method thereof, which can be used for batch freezing of articles with various sizes and shapes, can also be used for simultaneously freezing articles with various sizes and shapes, have a re-melting function and meet the re-melting requirement of partially frozen articles.
The technical scheme adopted by the invention for solving the technical problems is as follows: the flexible and efficient freezing and re-melting device comprises a freezing and re-melting chamber, wherein a plurality of layers of heat exchange plates are arranged in the freezing and re-melting chamber, a cavity is formed in each heat exchange plate, and the cavity is connected with a refrigerating and re-melting mechanism.
The heat exchange plate comprises a porous heat exchange plate and a non-porous heat exchange plate, a plurality of air holes communicated with the cavity are formed in the surface of the porous heat exchange plate, and the porous heat exchange plate and the non-porous heat exchange plate can be detachably arranged in the freezing re-melting chamber;
the refrigerating and re-melting mechanism comprises a refrigerator and a medium distributor which are connected, a heater and a circulating pump are arranged between the refrigerator and the medium distributor, a storage cavity is formed in the medium distributor, a plurality of distribution pipelines communicated with the storage cavity are arranged on the medium distributor, each distribution pipeline is communicated with a cavity of a porous heat exchange plate or a non-porous heat exchange plate, the refrigerating and re-melting chamber is connected with the refrigerator through a first circulating pipe, and the cavity of the non-porous heat exchange plate is connected with the refrigerator through a second circulating pipe.
Further, the heights of the porous heat exchange plates and the non-porous heat exchange plates can be adjusted.
Furthermore, a movable support is arranged in the freezing and re-melting chamber, and the porous heat exchange plate and the non-porous heat exchange plate can be detachably mounted on the movable support.
Furthermore, a first temperature sensor is arranged in the freezing and re-melting chamber, second temperature sensors are arranged on the side walls of the porous heat exchange plate and the non-porous heat exchange plate, and third temperature sensors are arranged on the first circulating pipe and the second circulating pipe.
Further, the air holes of the porous heat exchange plate are arranged on the upper surface of the porous heat exchange plate.
Further, the air holes of the porous heat exchange plate are arranged on the lower surface of the porous heat exchange plate.
Furthermore, the upper surface and the lower surface of the porous heat exchange plate are both provided with air holes.
The freezing and re-melting method of the flexible and efficient freezing and re-melting device,
when an article is packaged by a freezing bottle, the freezing bottle is placed on the porous heat exchange plate, then a refrigerant is driven to continuously flow through the refrigerator, meanwhile, the circulating pump is started, gas is driven to circularly flow, the gas becomes cold air when flowing through the refrigerator, the cold air enters the cavity of the porous heat exchange plate through the medium distributor and the distribution pipeline and is sprayed out of each air hole to refrigerate the freezing bottle, and the gas in the freezing re-melting chamber flows to the refrigerator through the first circulating pipe to realize circulation; stopping the flow of the refrigerant and simultaneously starting the heater when re-melting;
when the articles are packaged by the freezing storage box with the upper surface and the lower surface being the plane, the freezing storage box is placed on the heat exchange plate without holes, and the distance between two adjacent heat exchange plates without holes is adjusted, so that the upper surface of the freezing storage box is attached to the heat exchange plate without holes above the freezing storage box; then driving the refrigerant to continuously flow through the refrigerator, simultaneously starting the circulating pump to drive the heat exchange medium to circularly flow, wherein the heat exchange medium becomes a cold medium when flowing through the refrigerator, the cold medium enters the cavity of the imperforate heat exchange plate through the medium distributor and the distribution pipeline, the freezing storage box is refrigerated in a heat exchange mode, and the heat exchange medium in the imperforate heat exchange plate flows to the refrigerator through the second circulating pipe to realize circulation; when the melting is repeated, the flow of the refrigerant is stopped and the heater is turned on.
Further, when the articles are packaged by adopting a flexible bag body, the bag body is firstly placed in the freezing storage box, the non-porous heat exchange plates are obliquely installed, then the freezing storage box is placed on the oblique non-porous heat exchange plates, and the distance between every two adjacent non-porous heat exchange plates is adjusted, so that the upper surface of the freezing storage box is attached to the non-porous heat exchange plate above the freezing storage box; then driving the refrigerant to continuously flow through the refrigerator, simultaneously starting the circulating pump to drive the heat exchange medium to circularly flow, wherein the heat exchange medium becomes a cold medium when flowing through the refrigerator, the cold medium enters the cavity of the imperforate heat exchange plate through the medium distributor and the distribution pipeline, the freezing storage box is refrigerated in a heat exchange mode, and the heat exchange medium in the imperforate heat exchange plate flows to the refrigerator through the second circulating pipe to realize circulation; when the melting is repeated, the flow of the refrigerant is stopped and the heater is turned on.
Further, when the height of the freezing bottle is larger, the porous heat exchange plates with air holes on the upper surface and the lower surface are adopted, and cold air is sprayed out from the upper surface and the lower surface of the porous heat exchange plates simultaneously to uniformly refrigerate the upper part and the lower part of the freezing bottle; in the process of re-melting, the sample can be oscillated by the reciprocating motion of the movable support to accelerate the re-melting.
The invention has the beneficial effects that: 1. through setting up the heater, can heat the remelting to freezing article when taking as required. 2. The plurality of air holes uniformly arranged on the porous heat exchange plate can uniformly spray cold air, and the cold air can be uniformly distributed around the freezing bottle, so that the freezing bottle can uniformly refrigerate; and the upper surface and the lower surface of the freezing storage box are respectively attached to the two adjacent non-porous heat exchange plates, so that the upper surface and the lower surface of the freezing storage box are uniformly refrigerated in a heat exchange mode. 3. Because the porous heat exchange plate and the non-porous heat exchange plate are detachably mounted, the heat exchange plate can be replaced according to a container for storing frozen articles, if the porous heat exchange plate and the non-porous heat exchange plate are adopted, or the non-porous heat exchange plate and the porous heat exchange plate are adopted simultaneously, the mass freezing of articles in various sizes and shapes can be realized, the articles in various sizes and shapes can be frozen simultaneously, the use is very flexible, and the application range is wide.
Drawings
FIG. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic diagram of freezing and thawing of a multi-hole heat exchange plate with air holes on the upper surface;
FIG. 3 is a schematic view of a multi-hole heat exchange plate with air holes on the lower surface;
FIG. 4 is a schematic diagram of freezing and thawing of a multi-hole heat exchange plate with air holes on both the upper and lower surfaces;
FIG. 5 is a schematic view of freeze remelting of a non-porous heat exchange plate;
FIG. 6 is a schematic view of a bag of liquid frozen for reconstitution;
reference numerals: 1-freezing and re-melting chamber; 2-heat exchange plate; 3, moving the bracket; 4-a medium distributor; 5-a circulating pump; 6, a refrigerator; 7-a heater; 8-a third temperature sensor; 9-a second temperature sensor; 10-a first temperature sensor; 11-a freezing bottle; 12-freezing and storing the box; 13-a bag body; 14-a distribution pipe; 15-a second circulation pipe; 16-first circulation pipe.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1 to 6, the flexible and efficient freezing and re-melting device of the present invention comprises a freezing and re-melting chamber 1, wherein the freezing and re-melting chamber 1 is provided with a side door to facilitate the taking and placing of articles, and the freezing and re-melting chamber 1 is covered with a heat insulation layer to reduce energy consumption. The freezing re-melting chamber 1 is internally provided with a plurality of layers of heat exchange plates 2, the heat exchange plates 2 are internally provided with cavities, and the cavities are connected with a refrigerating re-melting mechanism.
The heat exchange plate 2 comprises a porous heat exchange plate and a non-porous heat exchange plate, a plurality of air holes communicated with the cavity are formed in the surface of the porous heat exchange plate, the air holes are uniformly distributed, the uniformity of air outlet is guaranteed, the non-porous heat exchange plate is a plate without the air holes, and refrigeration is performed in a heat exchange mode.
The porous heat exchange plate and the non-porous heat exchange plate can be detachably arranged in the freezing re-melting chamber 1, the heat exchange plate 2 can be replaced according to a container for storing frozen articles, if the porous heat exchange plate and the non-porous heat exchange plate can be completely adopted, or the non-porous heat exchange plate and the porous heat exchange plate can be simultaneously adopted, so that the mass freezing of articles in various sizes and shapes can be realized, the articles in various sizes and shapes can be simultaneously frozen, the use is very flexible, and the application range is wide.
In addition, the heights of the porous heat exchange plates and the non-porous heat exchange plates can be adjusted, namely the number, the distance and the like of the porous heat exchange plates and the non-porous heat exchange plates can be adjusted, and when the height of an article is smaller, the number of the porous heat exchange plates or the non-porous heat exchange plates can be increased, so that more articles can be frozen or re-melted at the same time; when the size of the article is larger, the number of the porous heat exchange plates or the non-porous heat exchange plates can be reduced, so that the distance between two adjacent heat exchange plates 2 is increased. In addition, the height-adjustable of sclausura heat transfer board for place the shape for the freezing box 12 of regular cuboid form, can make the upper surface of freezing box 12 and the sclausura heat transfer board laminating of top through the height of adjusting sclausura heat transfer board, thereby guarantee to freeze the top and the bottom of depositing box 12 and evenly release heat the refrigeration.
The refrigerating and re-melting mechanism comprises a refrigerator 6 and a medium distributor 4 which are connected, a heater 7 and a circulating pump 5 are arranged between the refrigerator 6 and the medium distributor 4, a storage cavity is arranged in the medium distributor 4, a plurality of distribution pipelines 14 communicated with the storage cavity are arranged on the medium distributor 4, each distribution pipeline 14 is communicated with a cavity of a porous heat exchange plate or a non-porous heat exchange plate, the refrigerating and re-melting chamber 1 is connected with the refrigerator 6 through a first circulating pipe 16, and the cavity of the non-porous heat exchange plate is connected with the refrigerator 6 through a second circulating pipe 15.
The refrigerator 6 is used for refrigerating, can adopt various existing refrigeration equipment such as a compressor, preferably adopts a heat exchanger, and exchanges heat with external refrigerants through a heat exchange medium, so that the temperature of the heat exchange medium is reduced, the heat exchange medium adopts harmless air, water and the like, so as to replace a scheme of directly introducing refrigerants such as liquid nitrogen into the freezing re-melting chamber 1, eliminate the risk of injury to workers caused by the refrigerants such as liquid nitrogen and the like, and reduce energy consumption.
Medium distributor 4 has certain memory function, vertical setting, can be the pipeline, be used for letting in each distribution pipe 14 with the heat transfer medium dispersion simultaneously, distribution pipe 14 can adopt the hose, certain elasticity can have, lateral wall at porous heat transfer board and sclausura heat transfer board sets up quick detach joint, so that can pull down distribution pipe 14 from porous heat transfer board or sclausura heat transfer board fast when porous heat transfer board of dismouting and sclausura heat transfer board, and can connect distribution pipe 14 on porous heat transfer board or sclausura heat transfer board fast.
And the circulating pump 5 is used for driving the heat exchange medium to circularly flow so as to realize circulating refrigeration. The heater 7 is a common heating device, the refrigerator 6 can be turned off when re-melting is needed, the heater 7 is started, and the heater 7 is used for heating the heat exchange medium, so that the article is heated. The first circulation pipe 16 and the second circulation pipe 15 are used to supply the heat exchange medium to the refrigerator 6 and the heater 7 again to ensure the circulation flow of the heat exchange medium. The second circulating pipe 15 can adopt a hose and has certain telescopic performance, and a quick-release connector is arranged on the side wall of the imperforate heat exchange plate, so that the second circulating pipe 15 can be quickly detached when the imperforate heat exchange plate is detached, and the second circulating pipe 15 can be quickly connected to the imperforate heat exchange plate.
The heat exchange medium can be harmless gas such as air, and when the heat exchange plates 2 are all non-porous heat exchange plates and are not porous, the heat exchange medium can be gas such as air, and can also be liquid such as water, glycol, silicon oil and the like. When the heat exchange plate 2 is a porous heat exchange plate, or a part of the heat exchange plate, the heat exchange medium is gas, preferably air.
The porous heat exchange plate and the non-porous heat exchange plate can be directly arranged on the inner side wall of the freezing re-melting chamber 1, in order to facilitate the disassembly and the assembly of the porous heat exchange plate and the non-porous heat exchange plate and the taking and the placing of articles, a movable support 3 is arranged in the freezing re-melting chamber 1, and both the porous heat exchange plate and the non-porous heat exchange plate can be detachably arranged on the movable support 3. The bottom of the movable support 3 is provided with a roller which can push the movable support 3 to move integrally, and the sample can be oscillated by the reciprocating motion of the movable support 3 in the re-melting process to accelerate the re-melting; when dismouting heat transfer board 2 perhaps gets and put article, can push movable support 3 outside freezing room 1 of melting again, operate again, guarantee sufficient operating space, can improve operating efficiency.
In order to facilitate the height of adjusting porous heat transfer board and sclausura heat transfer board, remove support 3 and can set up many vertical lead screws, set up a plurality ofly on the lead screw with lead screw sliding fit's sleeve, every telescopic below sets up in lead screw thread fit's support nut, porous heat transfer board and sclausura heat transfer board demountable installation are on the sleeve, the sleeve is supported by support nut, through rotating support nut, can adjust the height of sleeve and porous heat transfer board, sclausura heat transfer board. The porous heat exchange plate and the non-porous heat exchange plate can be arranged on the sleeve through bolts, and can also be arranged through pins, pin shafts and the like.
A first temperature sensor 10 is arranged in the freezing and re-melting chamber 1, second temperature sensors 9 are arranged on the side walls of the porous heat exchange plate and the non-porous heat exchange plate, and third temperature sensors 8 are arranged on the first circulating pipe 16 and the second circulating pipe 15. The first temperature sensor 10, the second temperature sensor 9 and the third temperature sensor 8 respectively detect the temperatures of different parts, the flow of the refrigerant, the rotating speed of the circulating pump 5, the power of the heater 7 and the like are adjusted according to detection results, indexes such as freezing temperature, cooling or heating rate and the like can be accurately controlled, and the controllability of the whole freezing or re-melting process is realized.
The porous heat exchange plate has various forms, one is that the air holes are arranged on the upper surface of the porous heat exchange plate, as shown in fig. 2; secondly, the air holes are arranged on the lower surface of the porous heat exchange plate, as shown in figure 3; and thirdly, air holes are arranged on the upper surface and the lower surface of the base plate, as shown in figure 4. Selecting a proper porous heat exchange plate according to the specific size of the article packaging container, for example, when the packaging container is a freezing bottle 11 with a small height, the porous heat exchange plate with the air holes arranged on the upper surface can be adopted, and the heat exchange medium is uniformly sprayed upwards, or the porous heat exchange plate with the air holes arranged on the lower surface can be adopted, and the heat exchange medium is uniformly sprayed downwards; when the packaging container is a freezing bottle 11 with a large height, a porous heat exchange plate with air holes formed in the upper surface and the lower surface can be adopted, and a heat exchange medium is sprayed out in the upper direction and the lower direction simultaneously, so that the upper portion and the lower portion of the freezing bottle 11 are uniformly surrounded by the heat exchange medium, and the uniformity of refrigeration or heating is ensured.
The freezing and re-melting method of the flexible and efficient freezing and re-melting device comprises the following steps:
when the articles are packed in the freezing bottle 11, the freezing bottle 11 includes all the existing bottles with various shapes and materials, and a porous heat exchange plate is adopted for refrigeration. Specifically, a freezing bottle 11 is placed on a porous heat exchange plate, then a refrigerant is driven to continuously flow through the heat exchanger, meanwhile, a circulating pump 5 is started to drive gas to circularly flow, heat is released when the gas flows through the heat exchanger to form cold air, the cold air enters a cavity of the porous heat exchange plate through a medium distributor 4 and a distribution pipeline 14, the bottom of the freezing bottle 11 is refrigerated through heat exchange and is sprayed out of each air hole to refrigerate the bottle body of the freezing bottle 11, and the gas in the freezing re-melting chamber 1 flows to the heat exchanger through a first circulating pipe 16 to realize circulation. When the bottle body is re-melted, the flow of the refrigerant is stopped, the heater 7 is started at the same time, the heater 7 heats the gas into hot gas, the hot gas enters the porous heat exchange plate, the bottom of the freezing bottle 11 is heated through heat exchange, and meanwhile, the hot gas is sprayed out from each air hole to heat the bottle body of the freezing bottle 11. One or more porous heat exchanger plates as in fig. 2, 3 and 4 are selected according to the size of the cryo-vial 11. When the height of the freezing bottle 11 is large, a porous heat exchange plate with air holes on the upper surface and the lower surface is adopted, and cold air is sprayed out from the upper surface and the lower surface of the porous heat exchange plate simultaneously to uniformly refrigerate the upper part and the lower part of the freezing bottle 11.
When the articles are packaged by the freezing storage box 12 with the upper surface and the lower surface being the plane, the freezing storage box 12 can be in a cuboid shape or a cylindrical shape, or can be a box body with the upper surface and the lower surface being in various lower heights such as an oval shape, a heart shape and the like, the freezing storage box 12 is placed on the heat exchange plate without holes, as shown in fig. 5, the distance between two adjacent heat exchange plates without holes is adjusted, so that the upper surface of the freezing storage box 12 is attached to the heat exchange plate without holes above; then, the refrigerant is driven to continuously flow through the heat exchanger, meanwhile, the circulating pump 5 is started, the heat exchange medium is driven to circularly flow, heat is released to become a cold medium when the heat exchange medium flows through the heat exchanger, the cold medium enters the cavity of the imperforate heat exchange plate through the medium distributor 4 and the distribution pipeline 14, the freezing storage box 12 is refrigerated in a heat exchange mode, and the heat exchange medium in the imperforate heat exchange plate flows to the heat exchanger through the second circulating pipe 15, so that circulation is achieved. When the re-melting is carried out, the flow to the refrigerant is stopped, the heater 7 is started, and the sample can be oscillated by the reciprocating motion of the movable support 3 in the re-melting process to accelerate the re-melting.
Generally, since the height of the freezing cylinder 11 is larger than the diameter, the upper portion is small and the bottom portion is large, the uniformity of cooling or heating can be ensured by heat exchange at the bottom portion and by blowing heat exchange gas around the bottom portion. The box type container is generally large in upper and lower area and small in height, if a bottom heat exchange mode and a peripheral heat exchange gas spraying mode are adopted, the part with the large top area cannot be cooled or heated in time, so that the cooling or heating is not uniform, therefore, for the freezing and storing box 12, the upper surface and the lower surface are used for cooling or heating in a simultaneous heat exchange mode, the heat exchange area is large, the cooling or heating efficiency is improved, the cooling or heating speed of the upper part and the cooling or heating speed of the lower part are consistent, and the overall cooling or heating speed is also uniform due to the fact that the height of the box type container is low.
When article adopt flexible bag body 13 to pack, if directly put bag body 13 on porous heat transfer board or sclausura heat transfer board, because bag body 13 is flexible, does not have fixed shape, can lead to the thickness of the inside liquid of bag body 13 of different horizontal positions to be different, and the cooling or the rate of rise of temperature of the center department of different thickness positions are different, are difficult to guarantee the even cooling or the intensification of different thickness positions promptly. Therefore, when the liquid packaged in the bag body 13 is frozen, the bag body 13 is firstly placed in the cryopreservation box 12, if the cryopreservation box 12 is horizontally placed, the upper surface of the bag body 13 is difficult to completely adhere to the top plate of the cryopreservation box 12, and the uniformity of refrigeration or heating can also be influenced, therefore, the non-porous heat exchange plate is obliquely installed, and then the cryopreservation box 12 is placed on the oblique non-porous heat exchange plate, so that the cryopreservation box 12 is also in an oblique state, the liquid in the bag body 13 is filled in the lower space of the bag body 13 under the action of gravity and extrudes the bag body 13, the state is shown in fig. 6, the upper surface and the lower surface of the bag body 13 are respectively and tightly adhered to the top plate and the bottom plate of the cryopreservation box 12, so that the uniform heat exchange of the upper surface and the lower surface of the bag body 13 can be realized, the liquid thickness of most positions is kept consistent, and the temperature reduction or temperature rise rate can be kept consistent. Then adjusting the distance between two adjacent imperforate heat exchange plates to ensure that the upper surface of the cryopreservation box 12 is attached to the upper imperforate heat exchange plate; then, the refrigerant is driven to continuously flow through the heat exchanger, meanwhile, the circulating pump 5 is started, the heat exchange medium is driven to circularly flow, heat is released to become a cold medium when the heat exchange medium flows through the heat exchanger, the cold medium enters the cavity of the imperforate heat exchange plate through the medium distributor 4 and the distribution pipeline 14, the freezing storage box 12 is refrigerated in a heat exchange mode, and the heat exchange medium in the imperforate heat exchange plate flows to the heat exchanger through the second circulating pipe 15, so that circulation is achieved. When the re-melting is carried out, the flow to the refrigerant is stopped, the heater 7 is started, and the sample can be oscillated by the reciprocating motion of the movable support 3 in the re-melting process to accelerate the re-melting.
In summary, the present invention can perform batch freezing and thawing on the articles packed in the certain bag 13, the freezing bottle 11 or the freezing box 12, or perform mixed freezing and thawing on the bag 13, the freezing bottle 11 or the freezing box 12, and can adjust the height and the number of the porous heat exchange plate and the non-porous heat exchange plate according to the height of the articles, so the present invention has the advantages of flexible use, strong applicability, and wide application range, and different freezing and thawing methods are adopted according to the characteristics of the bag 13, the freezing bottle 11 and the freezing box 12, so the uniformity of heat exchange of the bag 13, the freezing bottle 11 and the freezing box 12 is strongly ensured.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Nimble efficient freezing device of melting again, including freezing room (1) of melting again, freezing is provided with multilayer heat transfer board (2) in melting room (1) again, and heat transfer board (2) inside has a cavity, the cavity connection has the refrigeration to melt mechanism, its characterized in that again:
the heat exchange plate (2) comprises a porous heat exchange plate and a non-porous heat exchange plate, a plurality of air holes communicated with the cavity are formed in the surface of the porous heat exchange plate, and the porous heat exchange plate and the non-porous heat exchange plate can be detachably arranged in the freezing re-melting chamber (1);
the refrigerating and re-melting mechanism comprises a refrigerator (6) and a medium distributor (4) which are connected, a heater (7) and a circulating pump (5) are arranged between the refrigerator (6) and the medium distributor (4), a storage cavity is formed in the medium distributor (4), a plurality of distribution pipelines (14) communicated with the storage cavity are arranged on the medium distributor (4), each distribution pipeline (14) is communicated with a porous heat exchange plate or a cavity of a non-porous heat exchange plate, the refrigerating and re-melting chamber (1) is connected with the refrigerator (6) through a first circulating pipe (16), and the cavity of the non-porous heat exchange plate is connected with the refrigerator (6) through a second circulating pipe (15).
2. The flexible and efficient freeze thawing apparatus of claim 1, further comprising: the heights of the porous heat exchange plate and the non-porous heat exchange plate can be adjusted.
3. The flexible and efficient freeze thawing apparatus of claim 1 or 2, further comprising: the freezing re-melting chamber (1) is internally provided with a movable support (3), and the porous heat exchange plate and the non-porous heat exchange plate can be detachably arranged on the movable support (3).
4. The flexible and efficient freeze thawing apparatus of claim 1, further comprising: a first temperature sensor (10) is arranged in the freezing and re-melting chamber (1), second temperature sensors (9) are arranged on the side walls of the porous heat exchange plate and the non-porous heat exchange plate, and third temperature sensors (8) are arranged on the first circulating pipe (16) and the second circulating pipe (15).
5. The flexible and efficient freeze thawing apparatus of claim 1 or 2, further comprising: the air holes of the porous heat exchange plate are arranged on the upper surface of the porous heat exchange plate.
6. The flexible and efficient freeze thawing apparatus of claim 1 or 2, further comprising: the air holes of the porous heat exchange plate are arranged on the lower surface of the porous heat exchange plate.
7. The flexible and efficient freeze thawing apparatus of claim 1 or 2, further comprising: and the upper surface and the lower surface of the porous heat exchange plate are both provided with air holes.
8. The flexible and efficient freezing and thawing method and apparatus as recited in claims 1 to 7, further comprising:
when an article is packaged by a freezing bottle (11), the freezing bottle (11) is placed on the porous heat exchange plate, then the refrigerator (6) is started, the circulating pump (5) is started at the same time, gas is driven to flow circularly, the gas becomes cold air when flowing through the refrigerator (6), the cold air enters the cavity of the porous heat exchange plate through the medium distributor (4) and the distribution pipeline (14), and then is sprayed out of each air hole to refrigerate the freezing bottle (11), and the gas in the freezing re-melting chamber (1) flows to the refrigerator (6) through the first circulating pipe (16), so that circulation is realized; during re-melting, the refrigerator (6) is closed, and the heater (7) is started at the same time;
when the articles are packaged by the freezing storage box (12) with the upper surface and the lower surface being the plane, the freezing storage box (12) is placed on the heat exchange plate without holes, and the distance between two adjacent heat exchange plates without holes is adjusted, so that the upper surface of the freezing storage box (12) is attached to the heat exchange plate without holes above; then starting the refrigerator (6), simultaneously starting the circulating pump (5) to drive the heat exchange medium to circularly flow, wherein the heat exchange medium becomes a cold medium when flowing through the refrigerator (6), the cold medium enters the cavity of the imperforate heat exchange plate through the medium distributor (4) and the distribution pipeline (14), the freezing box (12) is refrigerated in a heat exchange mode, and the heat exchange medium in the imperforate heat exchange plate flows to the refrigerator (6) through the second circulating pipe (15) to realize circulation; when the melting is repeated, the flow of the refrigerant is stopped and the heater (7) is turned on.
9. The freeze thawing method of claim 8, wherein: when the articles are packaged by adopting the flexible bag body (13), the bag body (13) is firstly placed in the freezing storage box (12), the non-porous heat exchange plates are obliquely installed, then the freezing storage box (12) is placed on the oblique non-porous heat exchange plates, and the distance between every two adjacent non-porous heat exchange plates is adjusted, so that the upper surface of the freezing storage box (12) is attached to the non-porous heat exchange plate above the freezing storage box; then starting the refrigerator (6), simultaneously starting the circulating pump (5) to drive the heat exchange medium to circularly flow, wherein the heat exchange medium becomes a cold medium when flowing through the refrigerator (6), the cold medium enters the cavity of the imperforate heat exchange plate through the medium distributor (4) and the distribution pipeline (14), the freezing box (12) is refrigerated in a heat exchange mode, and the heat exchange medium in the imperforate heat exchange plate flows to the refrigerator (6) through the second circulating pipe (15) to realize circulation; when the melting is repeated, the flow of the refrigerant is stopped and the heater (7) is turned on.
10. The freeze thawing method of claim 8, wherein: when the height of the freezing bottle (11) is larger, a porous heat exchange plate with air holes on the upper surface and the lower surface is adopted, and cold air is sprayed out from the upper surface and the lower surface of the porous heat exchange plate simultaneously to uniformly refrigerate the upper part and the lower part of the freezing bottle (11); in the process of re-melting, the sample can be oscillated by the reciprocating motion of the movable support (3) to accelerate the re-melting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469666.8A CN114001521A (en) | 2021-12-03 | 2021-12-03 | Flexible and efficient freezing and re-melting device and freezing and re-melting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111469666.8A CN114001521A (en) | 2021-12-03 | 2021-12-03 | Flexible and efficient freezing and re-melting device and freezing and re-melting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114001521A true CN114001521A (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111469666.8A Pending CN114001521A (en) | 2021-12-03 | 2021-12-03 | Flexible and efficient freezing and re-melting device and freezing and re-melting method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114001521A (en) |
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2021
- 2021-12-03 CN CN202111469666.8A patent/CN114001521A/en active Pending
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