CN114041552A

CN114041552A - High-efficient board that unfreezes of reinforcing heat transfer

Info

Publication number: CN114041552A
Application number: CN202111156820.6A
Authority: CN
Inventors: 王政道; 王铮宇; 魏义坤; 杨徽; 张炜; 朱祖超
Original assignee: Zhejiang Sci Tech University ZSTU; Shangyu Industrial Technology Research Institute of ZSTU
Current assignee: Zhejiang Sci Tech University ZSTU; Shangyu Industrial Technology Research Institute of ZSTU
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-15

Abstract

The invention discloses a heat exchange enhanced efficient unfreezing plate which comprises a shell and an inserting plate, wherein the shell sequentially comprises a food placing plate, a heat exchange cavity and a shell bottom plate from top to bottom; the insertion plate consists of a partition plate and a partition plate bottom plate. According to the invention, the partition board is inserted into the unfreezing board, the characteristic of heat exchange is enhanced by inserting the partition board through natural convection, the heat exchange efficiency of the unfreezing board is improved, the unfreezing speed of food is greatly improved, the satisfaction degree of a user on the unfreezing food is increased, and the requirement of the user on high-quality food is met.

Description

High-efficient board that unfreezes of reinforcing heat transfer

Technical Field

The invention belongs to the technical field of natural static thawing, and particularly relates to a heat exchange enhanced efficient thawing plate.

Background

There are four conventional food thawing methods, namely: soaking in water, thawing, refrigerating, thawing at constant temperature, thawing by microwave oven heating, and thawing by natural standing. The four thawing methods have respective advantages and disadvantages, wherein the soaking thawing method is as follows: quick-frozen food is put into hot water or warm water for quick thawing, but bacteria can be bred in the thawing process, and nutrient substances contained in the food can be greatly lost along with the thawing process; the refrigeration constant-temperature thawing method comprises the following steps: the quick-frozen food is put into a refrigerator for refrigeration and thawing at constant temperature, so that the nutrition of the food can not be lost, the appearance of the food can not be changed, but the required thawing time is too long, and the taste of the food is easily influenced; the microwave oven heating unfreezing method comprises the following steps: the food is quickly thawed by a method of heating the food by a microwave oven, but simultaneously, the nutrition of the food is damaged to a certain extent, and the taste of the food is changed; the natural static thawing means: the quick-frozen food is unfrozen in a natural state, the taste and the nutritional structure of the food cannot be damaged, but the unfreezing time is too long.

The natural static thawing method in the four methods can be thawed in a natural state, does not affect the nutrition, taste and flavor of food, is most energy-saving and popular, but has the thawing time which is far longer than that of other thawing methods, so that the method is extremely important for providing the efficient natural static thawing method.

Disclosure of Invention

The invention provides a heat exchange enhanced efficient unfreezing plate for overcoming the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a high-efficiency unfreezing plate for enhancing heat exchange comprises a shell and an inserting plate, wherein the shell comprises a food placing plate, a heat exchange cavity and a shell bottom plate; the insertion plate comprises a partition plate and a partition plate bottom plate; through inserting the row of inserting in the heat transfer cavity, utilize natural convection to insert the baffle and strengthen the heat transfer principle, realize improving the efficiency of unfreezing, especially when the baffle number of inserting is more, can increase substantially the board heat exchange efficiency that unfreezes, promote food to place the board and the heat transfer between the board bottom plate that unfreezes to make food unfreeze fast.

Further, the surface of the food placing plate is provided with a plurality of flow guide grooves, and the flow guide grooves and the food placing plate are integrally arranged.

Furthermore, the inclination angle range of the diversion trench is as follows: 3-7 per mill

Preferably, the inclination angle value of the diversion trench is: 5 per mill.

Further, the welding of baffle equidistance is on the baffle bottom plate, and the interval between two adjacent baffles is W, and the thickness of baffle is S, and the interval of baffle and baffle bottom plate upper and lower edge is D, and the number of baffle is N, and the food is placed the interval between board and the shell bottom plate and is H.

More closely, the thickness of the partition board ranges from S/H to 0.004-0.04

Preferably, the thickness of the partition board has the following values: S/H is 0.004.

More closely, the interval has a value in the range of D/H0.005-0.02

Preferably, the interval has the following values: D/H is 0.01.

Compared with the prior unfreezing technology, the invention has the following advantages: 1. through inserting the row of inserting in the heat transfer cavity, utilize natural convection to insert the baffle and strengthen the heat transfer principle, realize improving the efficiency of unfreezing, especially when the baffle number of inserting is more, can increase substantially the board heat exchange efficiency that unfreezes, promote food to place the board and the heat transfer between the board bottom plate that unfreezes to make food unfreeze fast.

2. The defrosting plate and the power strip are designed in a split mode, so that the flexibility of the device is greatly improved, the power strip can be replaced when necessary, the number of the partition plates inserted into the heat exchange cavity is changed, and meanwhile, a way is provided for replacing the device.

3. Set up the guiding gutter on placing the board through food, and the inclination of guiding gutter is 5 permillage, is used for carrying out the water conservancy diversion to the comdenstion water that food unfreezes production when unfreezing, avoids the random flow of comdenstion water that produces to influence user's use and experiences, increases the satisfaction of user to the equipment use.

Drawings

FIG. 1 is a schematic view of the overall enhanced heat exchange high efficiency freeze plate of the present invention;

FIG. 2 is a schematic view of the enhanced heat exchange high efficiency freeze plate housing of the present invention;

FIG. 3 is a schematic view of the heat exchange enhanced high efficiency defrosting plate insert plate of the present invention;

FIG. 4 is a cross-sectional view of the entire heat exchange enhanced high efficiency thawing plate of the present invention;

FIG. 5 is a cross-sectional view of the enhanced heat exchange high efficiency defrosting plate insert of the present invention;

icon: 1-food placing plate; 2-heat exchange cavity; 3-a separator; 4-housing bottom plate; 5-a diversion trench; 6-inserting plate bottom plate;

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the description of the present invention, the terms "upper side", "lower side", "left side", "cavity", "housing bottom plate", "insertion plate bottom plate", "upper wall surface", "lower wall surface", and the like, which describe the positions, are used for describing the positions shown in the drawings, and are not specific fixing positions, which are relative to each other, and are not to be construed as limiting the present invention.

In the description of the present invention, the terms "food placing plate", "partition plate", "heat exchange cavity", "flow guide groove", etc. for the components of the apparatus are used for describing the apparatus in the process of food defrosting, but not for describing specific properties, and the names are different in different systems, which should not be construed as limiting the invention.

In the description of the present invention, the efficient thawing plate is formed by a split design, which is convenient for replacing the inserted partition plates in the equipment, and not for describing specific properties, the thawing plate can also be of an integral design, i.e. the left side of the shell is closed, and the partition plates are inserted into the heat exchange cavity in the shell at equal intervals, which is not to be construed as limiting the invention.

As shown in fig. 1, the heat exchange enhanced efficient thawing plate comprises a shell and a plugboard, wherein the shell sequentially comprises a food placing plate 1, a heat exchange cavity 2, a shell bottom plate 4 and a diversion trench 5 from top to bottom; the picture peg includes from left to right in proper order: a board inserting bottom plate 6 and a clapboard 3; the inserting plate can be inserted into the shell from the left side of the shell in a seamless connection mode, the top end of the partition plate 3 can be just in contact with the wall surface of the heat exchange cavity 2 in the shell, and the inserting plate bottom plate 6 can be fixed on the left side of the shell in a welding or sticking mode; the baffle is inserted into the heat exchange cavity, so that unidirectional natural convection heat exchange is formed between the upper plate and the lower plate of the heat exchange cavity, the heat exchange process is enhanced, and the thawing rate of the thawing plate is increased.

As shown in fig. 2, the food placing plate 1 is an upper wall surface of the shell, the bottom edge of the shell is a lower wall surface of the shell, and a heat exchange cavity 2 is arranged in the shell; the food placing plate 1 is made of aluminum materials or other solid materials which are beneficial to heat conduction and used for enhancing the direct heat conduction of the food and the food placing plate 1, so that the unfreezing speed of the food is accelerated; in addition, after its shell right side is sealed, this shell is inside to form inclosed cavity, and this cavity is the heat transfer cavity, and this heat transfer cavity is under the condition of not doing any processing, and the inside medium of this heat transfer cavity is gaseous, and other media can be changed into to the gas in its heat transfer cavity as required, for example: r12, R22, R134a, etc., so that the thawing rate of the thawing plate can be increased.

The food placing plate is provided with a plurality of flow guide grooves 5, and the dip angle value of each flow guide groove is 5 per thousand.

As shown in fig. 3, the board insertion base plate 6 is a board insertion main body, and the partition board 3 is fixed on the board insertion base plate 6 by welding, and the two are integrated parts; the number of the partition boards 3 which are equidistantly fixed on the bottom board 6 of the unfreezing board can be 1-28, the heat exchange efficiency of the unfreezing board gradually rises along with the increase of the number of the partition boards, and the partition boards can be reasonably valued according to the process requirements and equipment requirements, so that the benefit of the unfreezing board is maximum.

As shown in fig. 4, the partition plates 3 have a thickness S, and are placed in the heat exchange cavity 2 at intervals W at equal intervals, gaps between the partition plates 2 and the food placing plate 1 and the shell bottom plate 4 are D, a plurality of partition plates 3 are arranged in the heat exchange cavity 2, when the number of the partition plates 3 reaches 28, the heat exchange efficiency of the heat exchange cavity can be more than 2 times as high as that of the heat exchange cavity 2 without the partition plates 3, the heat exchange principle is enhanced by inserting the partition plates 2 by natural convection, so that the efficiency of the heat exchanger is improved, and especially when the number of the inserted partition plates 2 is large, the heat exchange efficiency of the heat exchanger can be greatly improved; the relationship between the thickness S of the partition plate 3 and the height H of the heat exchange cavity 2 is as follows: S/H is 0.004; the relation between the gap D of the partition board 3 and the upper and lower wall surfaces of the heat exchange cavity 2 and the height H of the heat exchange cavity 2 is as follows: D/H is 0.01;

as shown in fig. 5, the partition boards 3 with the thickness S are fixed on the bottom board of the plug board by welding or adhering according to the distance W, and the height of the partition boards is B, which is required to ensure that when the plug board is inserted into the shell, the top ends of the partition boards contact with the wall surface of the heat exchange cavity and there is substantially no gap between the two.

The specific working principle of the invention is as follows: to wait to unfreeze food and place on board 1 is placed to food, through heat-conducting principle, the board cools off is placed to food to the temperature that should unfreeze food, the upside that makes heat transfer cavity in the shell is cold wall, compare with heat transfer cavity downside, its downside is hot wall, the upper and lower side forms natural convection heat transfer according to the natural convection principle in the cavity, insert the principle of baffle reinforcing heat transfer based on natural convection, equidistant baffle 3 that inserts in heat transfer cavity 2, make it form unidirectional convection heat transfer in heat transfer cavity 2, thereby reinforcing heat transfer effect.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a high-efficient thawing plate of reinforcing heat transfer, includes shell and picture peg, its characterized in that: the shell comprises a food placing plate (1), a heat exchange cavity (2) and a shell bottom plate (4), and the inserting plate comprises a partition plate bottom plate (6) and a plurality of partition plates (3) arranged on the partition plate bottom plate.

2. The heat exchange enhanced efficient defrosting plate according to claim 1, which is characterized in that: the baffle is arranged in the heat exchange cavity.

3. The heat exchange enhanced efficient defrosting plate according to claim 1, which is characterized in that: the food placing plate (1) is provided with a flow guide groove (5), and the flow guide groove (5) and the shell are integrally arranged.

4. The heat exchange enhanced efficient defrosting plate according to claim 1, which is characterized in that: the shell and the inserting plate can be seamlessly combined together in a welding or sticking mode.

5. The heat exchange enhanced efficient defrosting plate according to claim 1, which is characterized in that: the food placement plate (1) is made of a solid material with high thermal conductivity.

6. The heat exchange enhanced efficient defrosting plate according to claim 1, which is characterized in that: the medium in the heat exchange cavity (2) can be filled with air or R134a and R22 media.

7. The heat exchange enhanced efficient defrosting plate according to claim 3, characterized in that: the range of the inclination angle of the flow guide groove is 3-7 per mill.

8. The heat exchange enhanced efficient defrosting plate according to claim 7, characterized in that: the inclination angle of the diversion trench is 5 per mill.

9. The heat exchange enhanced efficient defrosting plate according to claim 3, characterized in that: the partition boards are equidistantly arranged on the partition board bottom board, the distance between every two adjacent partition boards is W, the thickness of each partition board is S, the distance between each partition board and the upper edge and the lower edge of the partition board bottom board is D, the number of the partition boards is N, the distance between the food placing board and the shell bottom board is H, S/H is 0.004-0.04, and D/H is 0.005-0.02.

10. The heat exchange enhanced efficient thawing plate of claim 9, wherein: S/H is 0.004, D/H is 0.01.