Fluid low-temperature rapid unfreezing device and manufacturing method and unfreezing method thereof

Abstract

The fluid low-temperature rapid unfreezing device comprises a shell, the shell comprises an upper cover plate and a lower cover plate, an unfreezing cavity is formed between the upper cover plate and the lower cover plate, an opening is formed in the front side of the unfreezing cavity, and communicated liquid flow channels are formed in bodies of the upper cover plate and the lower cover plate; the upper cover plate is provided with a liquid injection hole at one end of the liquid flow channel, and the lower cover plate is provided with a liquid outlet hole at the other end of the liquid flow channel; an air exhaust hole is formed in the position, on one side of the unfreezing cavity, of the shell, a sealing structure is arranged on the position, on the inner side of the opening, between the upper cover plate and the lower cover plate, and the technical problem how to avoid the situation that in the food unfreezing process, due to rapid propagation of microorganisms, the small heat exchange area and the low unfreezing speed, the nutritional ingredients and the taste of food are damaged can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of food thawing devices, and in particular to a fluid low-temperature rapid thawing device and a manufacturing method and a thawing method thereof. Background Art

[0002] Rapid thawing of frozen meat can ensure the thawing speed while avoiding the destruction of nutrients and taste of frozen meat during the thawing process, as well as the rapid reproduction of microorganisms. Common thawing methods for frozen meat include microwave thawing, natural thawing, and water immersion. Natural thawing causes loss of nutrients due to long-term contact with air; long water immersion time and easy reproduction of bacteria affect the taste; microwave ovens and other rapid thawing devices quickly thaw frozen meat by raising the surface temperature of frozen meat, but due to the large temperature difference between the inside and outside, it will cause loss of nutrients and serious quality damage.

[0003] In summary, how to thaw quickly without destroying the nutritional components and taste of food and avoiding the rapid reproduction of microorganisms is becoming a rigid demand for rapid thawing in today's society. Therefore, it is necessary to develop a fluid low-temperature rapid thawing device to solve the above technical problems. Summary of the invention

[0004] The first technical problem to be solved by the present application is to provide a fluid low-temperature rapid thawing device to solve the technical problem of how to avoid the destruction of the nutritional components and taste of food due to the rapid reproduction of microorganisms, small heat exchange area and slow thawing speed during the thawing process of food, and to achieve low-temperature rapid thawing of frozen meat.

[0005] The second technical problem to be solved by the present application is to provide a method for manufacturing a fluid low-temperature rapid thawing device.

[0006] The third technical problem to be solved by the present application is to provide a thawing method of a fluid low-temperature rapid thawing device.

[0007] To solve the first technical problem mentioned above, the technical solution of this application is:

[0008] A fluid low-temperature rapid thawing device comprises a shell, the shell comprising an upper cover plate and a lower cover plate, a thawing chamber is arranged between the upper cover plate and the lower cover plate, an opening is arranged on the front side of the thawing chamber, and liquid flow channels communicating with each other are arranged inside the upper cover plate and the lower cover plate body, a liquid injection hole is arranged on the upper cover plate at one end of the liquid flow channel, and a liquid outlet hole is arranged on the lower cover plate at the other end of the liquid flow channel; an air suction hole is arranged on one side of the thawing chamber on the shell, and a sealing structure is arranged on the inner side of the opening between the upper cover plate and the lower cover plate.

[0009] Furthermore, it also includes a fluid pump, wherein the fluid pump has a liquid outlet connected to the liquid injection hole and a liquid return port connected to the liquid outlet hole.

[0010] Furthermore, the shell is made of aluminum-plastic film, copper-clad film or silicone film material.

[0011] Furthermore, the shell is a double-layer structure with inner and outer layers, and the liquid flow channel is provided between the inner and outer layers of the shell.

[0012] Furthermore, the liquid flow channel is arranged in an S shape inside the shell body.

[0013] Furthermore, the sealing structure comprises a sealing convex head and a sealing groove which engage with each other, and the sealing structure is provided with more than two. The sealing convex heads and the sealing grooves on the inner side of the upper cover plate are alternately arranged inside and outside.

[0014] To solve the above second technical problem, the technical solution of this application is:

[0015] A method for manufacturing a fluid low-temperature rapid thawing device, characterized in that it comprises the following steps:

[0016] (1) Material treatment: Place the shell material in an anhydrous ethanol solution, ultrasonically clean it for more than 10 minutes, take it out and place it in deionized water, ultrasonically clean it for more than 10 minutes to remove the surface ethanol solution, and then air-dry it for later use;

[0017] (2) Hot pressing: The double-layer shell material is overlapped and placed in a hot press to be hot pressed in the shape of the liquid flow channel, and the surroundings are hot pressed and sealed. A liquid injection hole is opened at one end of the liquid flow channel and a liquid outlet hole is opened at the other end to obtain a shell;

[0018] (3) Shell sealing: A sealing structure is connected to the front and rear opposite sides of one side of the shell, and the shell is folded in half and the left and right sides are hot-pressed and sealed to form a thawing chamber in the middle, and an exhaust hole is opened on one side of the shell.

[0019] To solve the third technical problem mentioned above, the technical solution of this application is:

[0020] A thawing method of a fluid low-temperature rapid thawing device comprises the following steps:

[0021] (1) Loading frozen food: placing frozen food into the thawing chamber of the housing, sealing the chamber by the sealing structure, and extracting air from the thawing chamber through the exhaust hole to form a vacuum in the thawing chamber, so that the upper cover plate and the lower cover plate wrap the frozen food;

[0022] (2) Rapid thawing: The fluid pump outlet is connected to the injection hole and the liquid return port is connected to the liquid outlet. A 4-8°C fluid is injected into the liquid flow channel through the injection hole. The fluid passes through the liquid flow channel to perform low-temperature heating and thawing of the frozen food.

[0023] (3) Taking out the frozen product: Open the air evacuation hole to introduce air to release the vacuum, pull the sealing convex head and the groove apart, and then take out the frozen product.

[0024] Furthermore, the fluid is water, edible alcohol, soybean oil, rapeseed oil or corn oil.

[0025] The technical effects achieved by adopting the above technical solution are:

[0026] The fluid low-temperature rapid thawing device of the present application is based on the principle of fluid heat dissipation to achieve rapid thawing of frozen meat. Compared with the existing thawing solutions, it has a large heat exchange area, a low thawing temperature, and a fast thawing speed, and can prevent frozen meat from being oxidized by excessive contact with air, thereby achieving rapid thawing of frozen food while ensuring that its taste remains unchanged and preventing rapid growth of microorganisms.

[0027] Since a fluid pump is also included, the fluid pump outlet is connected to the injection hole and the liquid return port is connected to the liquid outlet hole. The fluid pump injects liquid into the liquid flow channel through the injection hole and flows out through the liquid outlet hole. The fluid circulates continuously to exchange heat and quickly dissipate heat from the frozen food.

[0028] Since the shell is made of aluminum-plastic film, copper-coated film or silicone film material, the flexible shell can tightly wrap the frozen food, thereby improving the thawing efficiency.

[0029] Since the liquid flow channel is arranged in an S shape inside the shell body, it is ensured that the food in the thawing cavity can fully contact with the liquid flow channel, thereby increasing the heat exchange area and improving the thawing speed.

[0030] Since the sealing structure includes mutually engaging sealing protrusions and sealing grooves, and the sealing structure is provided with more than two, the sealing protrusions and sealing grooves on the inner side of the upper cover plate are alternately arranged inside and outside, which can ensure the sealing effect and prevent air leakage.

[0031] The fluid low-temperature rapid thawing device of the present application adopts raw materials that can contact food materials and a large-scale, low-cost hot pressing process. The manufacturing process is simple and easy to operate, has low requirements on workers and equipment, and is suitable for large-scale preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 It is a front view of an embodiment of the present application;

[0034] Figure 2 yes Figure 1 Middle AA section view;

[0035] Figure 3 is a side view of an embodiment of the present application;

[0036] Figure 4 yes Figure 3 Middle BB section view;

[0037] Figure 5 It is a three-dimensional structural diagram of an embodiment of the present application;

[0038] Figure 6 This is a three-dimensional structural diagram of the embodiment of the present application from another direction;

[0039] In the figure, 1, upper cover plate; 2, lower cover plate; 3, sealing protrusion; 4, sealing groove; 5, liquid injection hole; 6, liquid outlet hole; 7, air extraction hole; 8, liquid flow channel; 9, thawing chamber. DETAILED DESCRIPTION

[0040] like Figures 1 to 6 As shown, a fluid low-temperature rapid thawing device includes a shell, the shell includes an upper cover plate 1 and a lower cover plate 2, an opening is set on the front side between the upper cover plate 1 and the lower cover plate, a thawing chamber 9 is formed between the upper cover plate 1 and the lower cover plate 2, and a communicating liquid flow channel 8 is set inside the upper cover plate 1 and the lower cover plate 2. The liquid flow channel 8 is S-shaped and evenly distributed inside the shell body to ensure that the food in the thawing chamber 9 can fully contact with the liquid flow channel 8, increase the heat exchange area, and improve the thawing speed. For the convenience of processing and manufacturing, the shell is an inner and outer double-layer structure, and the liquid flow channel 8 is formed between the inner and outer layers of the shell by hot pressing or molding processing technology. The shell is preferably made of aluminum-plastic film, copper-coated film or silicone film material, and the flexible shell can tightly wrap the frozen food to improve the thawing efficiency.

[0041] The upper cover plate 1 is provided with a liquid injection hole 5 at one end of the liquid flow channel 8, and the lower cover plate 2 is provided with a liquid outlet hole 6 at the other end of the liquid flow channel 8; a suction hole 7 is provided on the shell on one side of the thawing chamber 9, and a sealing structure is provided on the inner side of the opening between the upper cover plate 1 and the lower cover plate 2. The sealing structure includes a sealing convex head 3 and a sealing groove 4 that are engaged with each other. There are more than two sealing structures, and the sealing convex head 3 and the sealing groove 4 on the inner side of the upper cover plate 1 are alternately arranged inside and outside, which can ensure the sealing effect and prevent air leakage.

[0042] The fluid low-temperature rapid thawing device also includes a fluid pump, the fluid pump outlet is connected to the injection hole 5 and the return port is connected to the liquid outlet 6. The fluid pump injects the liquid into the liquid flow channel 8 through the injection hole 5, and the fluid flows out through the liquid outlet 6. The continuous circulation and heat exchange allows the frozen food to dissipate heat quickly.

[0043] The manufacturing method of the fluid low-temperature rapid thawing device of the present application is characterized by comprising the following steps:

[0044] (1) Material treatment: Place the shell material in an anhydrous ethanol solution and perform ultrasonic cleaning for more than 10 minutes. After taking it out, place it in deionized water and perform ultrasonic cleaning for more than 10 minutes to remove the surface ethanol solution, and then air-dry it for later use.

[0045] (2) Hot pressing: The double-layer shell material is overlapped and placed in a hot press to be hot-pressed and formed according to the shape of the liquid flow channel, and the surrounding areas are hot-pressed and sealed. A liquid injection hole 5 is opened at one end of the liquid flow channel 8 and a liquid outlet hole 6 is opened at the other end to obtain a shell.

[0046] (3) Shell sealing: A sealing structure is connected to the front and rear opposite sides of one side of the shell, and the shell is folded in half and the left and right sides are hot-pressed and sealed to form a thawing chamber 9 in the middle, and an air extraction hole 7 is opened on one side of the shell.

[0047] The thawing method of the fluid low-temperature rapid thawing device of the present application comprises the following steps:

[0048] (1) Loading food: Frozen meat is placed in the thawing chamber 9 of the housing, which is sealed by the sealing structure, and the air in the thawing chamber 9 is extracted through the exhaust hole 7 to form a vacuum in the thawing chamber 9, so that the upper cover plate 1 and the lower cover plate 2 wrap the frozen meat;

[0049] (2) Rapid thawing: The fluid pump outlet is connected to the injection hole 5 and the return port is connected to the liquid outlet 6. A 4-8°C fluid is injected into the liquid flow channel 8 through the injection hole 5. The fluid is water, edible alcohol, soybean oil, rapeseed oil or corn oil. The fluid passes through the liquid flow channel 8 to perform low-temperature heating and thawing of the frozen meat.

[0050] (3) Taking out the frozen product: Open the air extraction hole 7 to introduce air to release the vacuum, pull the sealing protrusion 3 and the groove apart, and then take out the frozen product.

[0051] The fluid low-temperature rapid thawing device of the present application is based on the principle of fluid heat dissipation to achieve rapid thawing of frozen meat. Compared with the existing thawing solutions, it has a large heat exchange area, a low thawing temperature, and a fast thawing speed, which can prevent frozen meat from being oxidized by excessive contact with air, thereby ensuring the taste of frozen meat and avoiding rapid growth of microorganisms while ensuring the thawing speed. The fluid low-temperature rapid thawing device of the present application is simple to operate and easy to use, and does not require the user to cultivate usage habits. The low-cost and easy-to-replace characteristics also meet the requirements for food safety.

Claims

1. A fluid low-temperature rapid thawing device, characterized in that: The invention comprises a shell, wherein the shell comprises an upper cover plate and a lower cover plate, a thawing chamber is arranged between the upper cover plate and the lower cover plate, an opening is arranged at the front side of the thawing chamber, and a liquid flow channel communicating with each other is arranged inside the upper cover plate and the lower cover plate body. The upper cover plate is provided with a liquid injection hole at one end of the liquid flow channel, the lower cover plate is provided with a liquid outlet hole at the other end of the liquid flow channel, an air extraction hole is provided on the shell on one side of the thawing chamber, and a sealing structure is provided on the inner side of the opening between the upper cover plate and the lower cover plate.

2. A fluid low-temperature rapid thawing device as claimed in claim 1, characterized in that: It also includes a fluid pump, wherein the fluid pump has a liquid outlet connected to the liquid injection hole and a liquid return port connected to the liquid outlet hole.

3. A fluid low-temperature rapid thawing device as claimed in claim 2, characterized in that: The shell is made of aluminum-plastic film, copper-clad film or silicone film material.

4. A fluid low-temperature rapid thawing device as claimed in claim 3, characterized in that: The shell is a double-layer structure with inner and outer layers, and the liquid flow channel is arranged between the inner and outer layers of the shell.

5. A fluid low-temperature rapid thawing device as claimed in claim 4, characterized in that: The liquid flow channel is arranged in an S shape inside the shell body.

6. A fluid low-temperature rapid thawing device as claimed in claim 5, characterized in that: The sealing structure comprises a sealing convex head and a sealing groove which are engaged with each other. The sealing structure is provided with more than two sealing convex heads and sealing grooves on the inner side of the upper cover plate are alternately arranged inside and outside.

7. The method for manufacturing a fluid low-temperature rapid thawing device according to claim 1, characterized in that: The steps include: (1) Material treatment: Place the shell material in an anhydrous ethanol solution, ultrasonically clean it for more than 10 minutes, take it out and place it in deionized water, ultrasonically clean it for more than 10 minutes to remove the surface ethanol solution, and then air-dry it for later use; (2) Hot pressing: The double-layer shell material is overlapped and placed in a hot press to be hot pressed in the shape of the liquid flow channel, and the surroundings are hot pressed and sealed. A liquid injection hole is opened at one end of the liquid flow channel and a liquid outlet hole is opened at the other end to obtain a shell; (3) Shell sealing: A sealing structure is connected to the front and rear opposite sides of one side of the shell, and the shell is folded in half and the left and right sides are hot-pressed and sealed to form a thawing chamber in the middle, and an exhaust hole is opened on one side of the shell.

8. The thawing method of the fluid low-temperature rapid thawing device according to claim 1, characterized in that: The following steps are involved: (1) Loading frozen food: placing frozen food into the thawing chamber of the housing, sealing the chamber by the sealing structure, and extracting air from the thawing chamber through the exhaust hole to form a vacuum in the thawing chamber, so that the upper cover plate and the lower cover plate wrap the frozen food; (2) Rapid thawing: The fluid pump outlet is connected to the injection hole and the liquid return port is connected to the liquid outlet. A 4-8°C fluid is injected into the liquid flow channel through the injection hole. The fluid passes through the liquid flow channel to perform low-temperature heating and thawing of the frozen food. (3) Taking out the frozen product: Open the air evacuation hole to introduce air to release the vacuum, pull the sealing convex head and the groove apart, and then take out the frozen product.

9. The thawing method of the fluid low-temperature rapid thawing device according to claim 8: the fluid is water, alcohol, soybean oil, rapeseed oil or corn oil.

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